CN118741727A - Resource indication method, terminal and network side device on secondary link SL - Google Patents

Abstract

The present application discloses a resource indication method, terminal and network-side equipment on a sub-link SL, which belongs to the field of communication technology. The resource indication method on the SL of an embodiment of the present application includes: a first terminal transmits target information; wherein the target information is used to indicate the transmission resources of the target object, and the target information includes at least one of downlink control information DCI, sub-link control information SCI, and high-level information.

Description

Resource indication method, terminal and network side device on secondary link SL

Technical Field

The present application belongs to the field of communication technology, and specifically relates to a resource indication method, terminal and network-side equipment on a secondary link SL.

Background Art

The New Radio (NR) system supports sidelink (or translated as secondary link, side link, side link, etc.) transmission for direct data transmission between end-user equipment (User Equipment, UE) without going through network equipment.

In the shared resource pool, the relevant technology needs to consider the compatibility of SL UE (such as version (Release, R) 16, R17, etc.) and the large bandwidth requirements of SL positioning reference signal (Positioning Reference Signal, PRS), SL channel state reference signal (Channel state information Reference Signal, CSI-RS), so the resource exclusion can be performed according to the time-frequency domain resource information indicated by the first-level sidelink control information (Sidelink Control Information, SCI) to determine the resource location of the physical sidelink shared channel (Physical Sidelink Shared Channel, PSSCH). Among them, for the shared resource pool, SL positioning-related information and R16, R17 SL UE will transmit information based on the resource pool.

However, for the scenario where the UE needs to transmit SL PRS, SL CSI-RS and PSSCH (including second-level SCI) information within the time-frequency domain resources indicated by the first-level SCI, since the frequency domain resource position of PSSCH is not necessarily the same as the frequency domain resource position of SL PRS or SL CSI-RS, how to implement resource indications such as SL PRS, SL CSI-RS, PSSCH, etc. is still a technical problem that needs to be urgently solved in this field.

Summary of the invention

The embodiments of the present application provide a resource indication method, terminal and network-side equipment on SL, which can implement resource indication such as SLPRS, SL CSI-RS, PSSCH, etc., to ensure the performance of the SL transmission system.

In a first aspect, a resource indication method on a SL is provided, comprising: a first terminal transmitting target information; wherein the target information is used to indicate the transmission resources of the target object, and the target information includes at least one of downlink control information DCI, sub-link control information SCI, and high-level information.

In the second aspect, a resource indication method on SL is provided, comprising: a network side device sends target information; wherein, the target information is used to indicate the transmission resources of the target object, and the target information includes at least one of downlink control information DCI and high-level information.

According to a third aspect, a resource indication device on a SL is provided, comprising: a transmission device for transmitting target information; wherein the target information is used to indicate the transmission resources of the target object, and the target information includes at least one of downlink control information DCI, sub-link control information SCI, and high-level information.

In a fourth aspect, a resource indication device on a SL is provided, comprising: a sending module, used for a network device to send target information; wherein, the target information is used to indicate the transmission resources of the target object, and the target information includes at least one of downlink control information DCI and high-level information.

In a fifth aspect, a terminal is provided, comprising a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the method described in the first aspect are implemented.

In a sixth aspect, a terminal is provided, comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the steps of the method described in the first aspect.

In the seventh aspect, a network side device is provided, which includes a processor and a memory, wherein the memory stores programs or instructions that can be run on the processor, and when the program or instructions are executed by the processor, the steps of the method described in the second aspect are implemented.

In an eighth aspect, a network side device is provided, comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the steps of the method described in the first aspect.

In a ninth aspect, a readable storage medium is provided, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the method described in the first aspect are implemented, or the steps of the method described in the second aspect are implemented.

In the tenth aspect, a wireless communication system is provided, including: a terminal and a network side device, wherein the terminal can be used to execute the steps of the method described in the first aspect, and the network side device can be used to execute the steps of the method described in the second aspect.

In the eleventh aspect, a chip is provided, comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the method described in the first aspect, or to implement the method described in the second aspect.

In a twelfth aspect, a computer program/program product is provided, wherein the computer program/program product is stored in a storage medium, and the program/program product is executed by at least one processor to implement the steps of the method described in the first aspect or the second aspect.

In the embodiment of the present application, the target information is transmitted by the first terminal to indicate the transmission resources of the target object, which can improve the transmission success rate of the target object and ensure the system performance.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 a is one of the structural diagrams of a wireless communication system provided by an exemplary embodiment of the present application.

FIG. 1 b is one of the structural diagrams of a wireless communication system provided by an exemplary embodiment of the present application.

FIG. 2 is a flowchart of a resource indication method on a SL provided by an exemplary embodiment of the present application.

FIG3 is a second flowchart of a resource indication method on a SL provided by an exemplary embodiment of the present application.

FIG. 4 a is one of schematic diagrams of time-frequency resources provided by an exemplary embodiment of the present application.

FIG4b is a second schematic diagram of time-frequency resources provided by an exemplary embodiment of the present application.

FIG4c is a third schematic diagram of time-frequency resources provided by an exemplary embodiment of the present application.

FIG4d is a fourth schematic diagram of time-frequency resources provided by an exemplary embodiment of the present application.

FIG4e is a fifth schematic diagram of time-frequency resources provided by an exemplary embodiment of the present application.

FIG4f is a sixth schematic diagram of time-frequency resources provided by an exemplary embodiment of the present application.

FIG4g is a seventh schematic diagram of time-frequency resources provided by an exemplary embodiment of the present application.

FIG4h is an eighth schematic diagram of time-frequency resources provided by an exemplary embodiment of the present application.

FIG4i is a ninth schematic diagram of time-frequency resources provided by an exemplary embodiment of the present application.

FIG4j is a tenth schematic diagram of time-frequency resources provided by an exemplary embodiment of the present application.

FIG4k is an eleventh schematic diagram of time-frequency resources provided by an exemplary embodiment of the present application.

FIG41 is a twelfth schematic diagram of time-frequency resources provided by an exemplary embodiment of the present application.

FIG5 is a third flowchart of a resource indication method on a SL provided by an exemplary embodiment of the present application.

FIG6a is a thirteenth schematic diagram of time-frequency resources provided by an exemplary embodiment of the present application.

FIG6b is a fourteenth schematic diagram of time-frequency resources provided by an exemplary embodiment of the present application.

FIG6c is the fifteenth schematic diagram of time-frequency resources provided by an exemplary embodiment of the present application.

FIG. 7 is a fourth flowchart of a resource indication method on a SL provided by an exemplary embodiment of the present application.

FIG. 8 a is one of schematic diagrams of channel resources provided by an exemplary embodiment of the present application.

FIG8b is a second schematic diagram of channel resources provided by an exemplary embodiment of the present application.

FIG8c is a third schematic diagram of channel resources provided by an exemplary embodiment of the present application.

FIG8d is a fourth schematic diagram of channel resources provided by an exemplary embodiment of the present application.

FIG8e is a fifth schematic diagram of channel resources provided by an exemplary embodiment of the present application.

FIG8f is a sixth schematic diagram of channel resources provided by an exemplary embodiment of the present application.

FIG. 9 is a fifth flowchart of a method for repeated transmission provided by an exemplary embodiment of the present application.

FIG. 10 is a schematic diagram of a structure of a resource indication device on a SL provided by an exemplary embodiment of the present application.

FIG. 11 is a second schematic diagram of the structure of a resource indication device on a SL provided by an exemplary embodiment of the present application.

FIG. 12 is a schematic diagram of the structure of a communication device provided by an exemplary embodiment of the present application.

FIG. 13 is a schematic diagram of the structure of a terminal provided by an exemplary embodiment of the present application.

FIG. 14 is a schematic diagram of the structure of a network-side device provided by an exemplary embodiment of the present application.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of this application.

The terms "first", "second", etc. of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way are interchangeable where appropriate, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of one type, and the number of objects is not limited, for example, the first object can be one or more. In addition, "or" in the present application represents at least one of the connected objects. For example, "A or B" covers three schemes, namely, Scheme 1: including A but not including B; Scheme 2: including B but not including A; Scheme 3: including both A and B. The character "/" generally indicates that the objects associated with each other are in an "or" relationship.

The term "indication" in this application can be either a direct indication (or explicit indication) or an indirect indication (or implicit indication). A direct indication can be understood as the sender explicitly informing the receiver of specific information, operations to be performed, or request results in the sent indication; an indirect indication can be understood as the receiver determining the corresponding information according to the indication sent by the sender, or making a judgment and determining the operation to be performed or the request result according to the judgment result.

It is worth noting that the technology described in the embodiments of the present application is not limited to the Long Term Evolution (LTE)/LTE-Advanced (LTE-A) system, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency Division Multiple Access (SC-FDMA) or other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described technology can be used for the above-mentioned systems and radio technologies as well as other systems and radio technologies. The following description describes the NR system for example purposes, and the NR terminology is used in most of the following descriptions, but these technologies can also be applied to systems other than NR systems, such as the ^6th Generation (6G) communication system.

FIG1a shows a block diagram of a wireless communication system applicable to an embodiment of the present application. The wireless communication system includes a terminal 11 and a network side device 12. The terminal 11 may be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer), a notebook computer, a personal digital assistant (Personal Digital Assistant, PDA), a handheld computer, a netbook, an ultra-mobile personal computer (Ultra-mobile Personal Computer, UMPC), a mobile Internet device (Mobile Internet Device, MID), an augmented reality (Augmented Reality, AR), a virtual reality (Virtual Reality, VR) device, a robot, a wearable device (Wearable Device), an aircraft (flight vehicle), a vehicle user equipment (VUE), a shipborne equipment, a pedestrian terminal (Pedestrian User Equipment, PUE), a smart home (a home appliance with wireless communication function, such as a refrigerator, a television, a washing machine or furniture, etc.), a game console, a personal computer (Personal Computer, PC), a teller machine or a self-service machine and other terminal side devices. Wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. Among them, the vehicle-mounted device can also be called a vehicle-mounted terminal, a vehicle-mounted controller, a vehicle-mounted module, a vehicle-mounted component, a vehicle-mounted chip or a vehicle-mounted unit, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application. The network side device 12 may include an access network device or a core network device, wherein the access network device may also be referred to as a radio access network (Radio Access Network, RAN) device, a radio access network function or a radio access network unit. The access network device may include a base station, a wireless local area network (Wireless Local Area Network, WLAN) access point (Access Point, AS) or a wireless fidelity (Wireless Fidelity, WiFi) node, etc. Among them, the base station may be referred to as a Node B (NB), an Evolved Node B (eNB), a next generation Node B (gNB), a New Radio Node B (NR Node B), an access point, a Relay Base Station (RBS), a Serving Base Station (SBS), a Base Transceiver Station (BTS), a radio base station, a radio transceiver, a Basic Service Set (BSS), an Extended Service Set (ESS), a Home Node B (HNB), a Home Evolved Node B, a Transmission Reception Point (TRP) or other appropriate terms in the field, as long as the same technical effect is achieved, the base station is not limited to a specific technical vocabulary, it should be noted that in the embodiment of the present application, only the base station in the NR system is used as an example for introduction, and the specific type of the base station is not limited. In addition, the network device in the application may also include a location management function (LMF).

In another implementation, the aforementioned network side device 12 may also be replaced by the terminal 12 shown in FIG. 1b , and the type of the terminal 12 is the same as the type of the aforementioned terminal 11, such as a mobile phone, a tablet computer, a laptop computer, a notebook computer, a personal digital assistant, a handheld computer, a netbook, an ultra-mobile personal computer, etc. However, it should be noted that in the scenario shown in FIG. 1b , the terminal 12 may also serve as a control unit to control the SL transmission of other terminals on the SL.

The technical solution provided by the embodiments of the present application is described in detail below through some embodiments and their application scenarios in combination with the accompanying drawings.

As shown in Figure 2, it is a flow chart of a resource indication method 200 on a SL provided by an exemplary embodiment of the present application. The method 200 can be, but is not limited to, executed by a first terminal, and can be specifically executed by hardware and/or software installed in the first terminal. In this embodiment, the method 200 can at least include the following steps.

S210, the first terminal transmits target information.

The first terminal is a terminal on the SL, and can communicate with one or more second terminals on the SL based on the SL to achieve terminal positioning or beam training on the SL. The SL may include but is not limited to a physical sidelink control channel (PSCCH), a PSSCH, a physical sidelink broadcast channel (PSBCH), and a physical sidelink feedback channel (PSFCH). Correspondingly, the reference signals involved on the SL may include but are not limited to a PSCCH demodulation reference signal (DMRS), a PSSCH DMRS, a SL phase tracking reference signal (PTRS), a SL PRS, a SL CSI-RS, and the like.

Based on this, the aforementioned "first terminal transmits target information" can be understood as: the first terminal sends the target information, or the first terminal receives the target information, such as the first terminal sends the target information to the second terminal, the first terminal receives the target information sent by the second terminal or the network side device, etc., and no limitation is made here.

In this embodiment, the target information is used to indicate the transmission resources of the target object on the SL, so as to achieve the purpose of transmitting the target object based on the transmission resources while ensuring the communication performance on the SL.

Optionally, the target information may include but is not limited to at least one of downlink control information (Downlink Control Information, DCI), SCI, and high-level information. The high-level information may be radio resource control (Radio Resource Control, RRC) signaling, PC5-RRC, SLPP signaling, SL medium access control element (Medium Access Control Control element, MAC CE), etc. It should be noted that the SCI, PC5-RRC signaling, and SLMAC CE are sent by the terminal (such as the first terminal and the second terminal), and the DCI, RRC signaling, SLPP, and MAC CE are sent by the network side device (such as a base station, a core network device, etc.).

Furthermore, in this embodiment, when the target information indicates the transmission resources (such as time-frequency domain resources, resource indexes, etc.) of the target object, it can be implemented in an explicit or implicit manner.

In addition, the target object may include at least one of a second level SCI ( ^2nd SCI), a first PSSCH, a second PSSCH ( ^1st PSSCH), a third PSSCH ( ^2nd PSSCH), and a SL reference signal (such as SL PRS, SL CSI-RS, etc.).

It is worth noting that for the aforementioned first PSSCH, second PSSCH (also referred to as the first part PSSCH ( ^1st PSSCH)), and third PSSCH (also referred to as the second part PSSCH ( ^2nd PSSCH)), the mapping structure of the first PSSCH is different from that of the second PSSCH and the third PSSCH, but the content carried by the first PSSCH may include the content carried by the second PSSCH or the content carried by the third PSSCH, and the content carried by the second PSSCH is different from the content carried by the third PSSCH. Optionally, the second PSSCH carries at least one of a second-level SCI, high-layer fill bits, and a first data packet, and the third PSSCH carries SL measurement report information, etc.

In this embodiment, the target information is transmitted by the first terminal to indicate the transmission resources of the target object, which can improve the transmission success rate of the target object and ensure the system performance.

As shown in Figure 3, it is a flow chart of a method 300 for indicating resources on a SL provided by an exemplary embodiment of the present application. The method 300 may be, but is not limited to, executed by a first terminal, and may be specifically executed by hardware and/or software installed in the first terminal. In this embodiment, the method 300 may at least include the following steps.

S310, the first terminal transmits target information.

The target information is used to indicate the transmission resources of the target object, and the target information includes at least one of DCI, SCI, and high-level information.

It can be understood that, in addition to referring to the relevant description in method embodiment 200, as a possible implementation method, the transmission resource of the target object indicated by S310 may be different according to the different target information. For example, if the target information includes DCI, SCI, and high-level information, then the SCI can be used to indicate the transmission resource of the SL reference signal, such as frequency domain resource information, time domain resource information, time-frequency resource information (for example, indicating resource element (RE) information), etc.

For another example, if the target information includes the SCI and the SCI includes two levels of SCI, that is, the SCI includes a first-level SCI and/or a second-level SCI, then the first-level SCI includes (or indicates) frequency domain resource information of the first object or the second object, and the second-level SCI includes (or indicates) frequency domain resource information of the second object.

Among them, the first object and the second object belong to the target object, such as the first object includes at least one of the second-level SCI, the first PSSCH, and the second PSSCH, and the second object includes at least one of the SL reference signal and the third PSSCH.

It is worth noting that, compared with the first-level SCI (i.e., SCI format 1-A) and second-level SCI (i.e., SCI format 2-A, SCI format 2-B, SCI format 2-C) already disclosed in related technologies (such as R16, R17, etc.), in this embodiment, new indication content is introduced into the first SCI and the second-level SCI (or a new specific format of SCI is introduced, such as SCI format 2-D) to realize the indication of the transmission resources of the first object and the second object. Therefore, on the one hand, while ensuring the performance of SL PRS, SL CSI-RS, SL PSSCH, etc., it is also possible to realize the resource indication of SL PRS, SL CSI-RS, SLPSSCH, etc.; on the other hand, the backward compatibility of R16/R17 UE is guaranteed, and the communication performance of the first terminal is improved.

In this case, as a possible implementation method, if the first-level SCI includes frequency domain resource information of the first object or indicates the frequency domain resources of the first object, the frequency domain resource information of the first object may include at least one of the following (00)-(02).

(00) An offset value (offset) of the frequency domain position of the first object relative to the frequency domain position of the first-level SCI.

In this embodiment, the offset value of the frequency domain position of the first object relative to the frequency domain position of the first-level SCI includes the following situations.

An offset value of a starting position of the first object in the frequency domain relative to a starting position of the first-level SCI in the frequency domain.

An offset value of a start position of the first object in the frequency domain relative to an end position of the first-level SCI in the frequency domain.

An offset value of the frequency domain end position of the first object relative to the frequency domain start position of the first-level SCI.

An offset value of the end position of the first object in the frequency domain relative to the end position of the first-level SCI in the frequency domain.

Among them, for the offset value mentioned in the aforementioned (00), it can be [-N1, N2] frequency domain resource units, and N1 and N2 are integers greater than 0.

(01) The frequency domain position of the first object, such as the frequency domain starting position and/or the frequency domain ending position.

The frequency domain position (such as the frequency domain start position and/or the frequency domain end position) of the first object can be determined according to the first reference position. In this embodiment, the first reference position may include at least one of the following (a)-(e).

(a) The frequency domain resource location corresponding to the predefined, preconfigured or configured subchannel in the resource pool.

The resource pool is related to the target object. For example, the resource pool mentioned in this embodiment may be the SCI (such as the resource pool where the first-level SCI and the second-level SCI are located), or the resource pool may be the resource pool where the SL reference signal is located, or the resource pool may be the resource pool where the PSSCH is located, and no limitation is made here.

In addition, the predefined or preconfigured or configured subchannel may be a subchannel with a subchannel identifier of 0, or a subchannel with the largest identifier, etc., which is not limited here.

(b) The frequency domain resource position corresponding to the predefined or preconfigured or configured physical resource block (PRB) in the resource pool.

(c) The frequency domain resource location corresponding to the predefined, preconfigured or configured PRB in the bandwidth part (Bandwidth Part, BWP).

The BWP is related to the target object, such as the resource pool is used for transmission of the first object in the target object.

In addition, the predefined or preconfigured or configured PRB in the BWP may be the maximum PRB in the BWP, the lowest PRB in the BWP, a PRB with a predetermined identifier (such as 0) in the BWP, etc. Of course, for the case of the maximum PRB in the BWP, the BWP is an activated BWP, or the BWP where the SL reference signal is located, or the BWP where the PSSCH is located.

(d) The frequency domain resource position corresponding to the lowest PRB or the highest PRB or the predefined PRB or the preconfigured PRB or the configured PRB in the largest subchannel in the resource pool.

(e) The frequency domain resource position corresponding to the largest PRB in the BWP. The BWP mentioned in this embodiment is an activated BWP, or a BWP where the SL reference signal is located, or a BWP where the PSSCH is located.

(02) The frequency domain resource size of the first object.

Optionally, in this embodiment, the frequency domain resource size of the first object may satisfy at least one of the following (10)-(16).

(10) The frequency domain resource size of the first object is predefined by the protocol.

(11) The frequency domain resource size of the first object is pre-configured by the network.

(12) The frequency domain resource size of the first object is configured by the network.

(13) The frequency domain resource size of the first object is configured by the terminal. The terminal may be the first terminal or another SL terminal other than the first terminal, and is not limited here.

(14) The frequency domain resource size of the first object is equal to the frequency domain resource size of the PSCCH.

In addition, the PSCCH is related to the target information, such as the PSCCH is used for transmission of the SCI (such as the first-level SCI).

Optionally, when the frequency domain resource size of the first object is equal to the frequency domain resource size of the PSCCH, the frequency domain resource position of the first object may be the same as or different from the frequency domain resource position of the PSCCH.

(15) The frequency domain resource size of the first object is equal to the frequency domain resource size of the SL reference signal.

Optionally, when the frequency domain resource size of the first object is equal to the frequency domain resource size of the SL reference signal, the frequency domain resource position of the first object may be the same as or different from the frequency domain resource position of the SL reference signal.

(16) The frequency domain resource size of the first object is equal to the frequency domain resource size of the resource pool.

Optionally, when the frequency domain resource size of the first object is equal to the frequency domain resource size of the resource pool, the frequency domain resource position of the first object may be the same as or different from the frequency domain resource position of the resource pool.

It should be noted that the frequency domain resource information of the first object can be determined based on the frequency domain resource position, frequency domain resource offset value, and frequency domain resource size of the first object, or it can be determined based on the frequency domain resource position, frequency domain resource offset value, and frequency domain resource size of the first object. There is no limitation here.

In addition, the resource unit granularity of the frequency domain resources described in (10)-(16) above may be the same as or different from the resource unit granularity of the frequency domain start position, frequency domain end position, etc. of the aforementioned first object. For example, the indication granularity of the position offset value is 1 subchannel, the indication granularity of the frequency domain resource position is 1 subchannel, and the scheduling granularity of the frequency domain resources or the indication granularity of the frequency domain resource size is 4 subchannels.

Further, similar to the aforementioned first object, if the first-level SCI includes frequency domain resource information of the second object (or the first-level SCI indicates the frequency domain resources of the second object) and the second-level SCI includes frequency domain resource information of the second object (or the second-level SCI indicates the frequency domain resources of the second object), then, as another possible implementation method, the frequency domain resource information of the second object may include at least one of the following (21)-(24).

(21) An offset value of the frequency domain position of the second object relative to the frequency domain position of the first SCI.

Optionally, in this embodiment, the offset value of the frequency domain position of the second object relative to the frequency domain position of the first SCI may include the following situations.

An offset value of a starting position of the second object in the frequency domain relative to a starting position of the first SCI in the frequency domain.

The offset value of the starting position of the second object in the frequency domain relative to the ending position of the first SCI in the frequency domain.

The offset value of the frequency domain end position of the second object relative to the frequency domain start position of the first SCI.

The offset value of the frequency domain end position of the second object relative to the frequency domain end position of the first SCI.

(22) An offset value of the frequency domain position of the second object relative to the frequency domain position of the second-level SCI.

Optionally, in this embodiment, the offset value of the frequency domain starting position of the second object relative to the frequency domain starting position of the second-level SCI may include the following situations.

An offset value of a starting position of the second object in the frequency domain relative to a starting position of the second-level SCI in the frequency domain.

An offset value of a start position of the second object in the frequency domain relative to an end position of the second-level SCI in the frequency domain.

An offset value of the frequency domain end position of the second object relative to the frequency domain start position of the second-level SCI.

An offset value of the end position of the second object in the frequency domain relative to the end position of the second-level SCI in the frequency domain.

(23) The frequency domain position of the second object, such as the frequency domain starting position and/or the frequency domain ending position.

The frequency domain position (such as the frequency domain start position or the frequency domain end position) of the second object can be determined according to the second reference position. In this embodiment, the second reference position can include at least one of the following (a)-(e).

(a) The frequency domain resource position corresponding to the subchannel predefined, preconfigured or configured in the resource pool.

Among them, the resource pool mentioned in this embodiment can be the SCI (such as the resource pool where the first-level SCI and the second-level SCI are located), or the resource pool is the resource pool where the SL reference signal is located, or the resource pool is the resource pool where the PSSCH is located, and there is no limitation here.

(b) The frequency domain resource position corresponding to the predefined or preconfigured or configured PRB in the resource pool.

Among them, the PRB predefined or preconfigured or configured in the resource pool can be the lowest PRB, the highest PRB, a PRB with a predetermined identifier (such as 0, etc.) in the resource pool, etc.

(c) The frequency domain resource locations corresponding to the PRBs predefined or preconfigured or configured in the BWP.

Among them, the predefined or preconfigured or configured PRB in the BWP can be the maximum PRB in the BWP, the lowest PRB in the BWP, the PRB with a predetermined identifier (such as 0) in the BWP, etc. Of course, for the case of the maximum PRB in the BWP, the BWP is an activated BWP, or the BWP where the SL reference signal is located, or the BWP where the PSSCH is located.

(d) The frequency domain resource position corresponding to the lowest PRB or the highest PRB in the largest subchannel in the resource pool.

(e) The frequency domain resource position corresponding to the maximum PRB in the BWP. The BWP mentioned in this embodiment is an activated BWP, or a BWP where the SL reference signal is located, or a BWP where the PSSCH is located.

That is, the resource pool and BWP mentioned in (a)-(e) above are related to the target object (ie, the second object), such as the resource pool and the BWP are used for the transmission of the second object.

(24) The frequency domain resource size of the second object.

Optionally, in this embodiment, the frequency domain resource size of the second object may satisfy at least one of the following (30)-(36).

(30) The frequency domain resource size of the second object is predefined by the protocol.

(31) The frequency domain resource size of the second object is pre-configured by the network.

(32) The frequency domain resource size of the second object is configured by the network.

(33) The frequency domain resource size of the second object is configured by the terminal.

(34) The frequency domain resource size of the second object is equal to the frequency domain resource size of the first-level SCI or the second-level SCI.

Optionally, when the frequency domain resource size of the second object is equal to the frequency domain resource size of the first-level SCI or the second-level SCI, the frequency domain resource position of the second object may be the same as or different from the frequency domain resource position of the first-level SCI or the second-level SCI.

(35) The frequency domain resource size of the second object is equal to the frequency domain resource size of the second PSSCH.

Optionally, when the frequency domain resource size of the second object is equal to the frequency domain resource size of the second PSCCH, the frequency domain resource position of the second object and the frequency domain resource position of the second PSCCH may be the same as or different.

(36) The frequency domain resource size of the second object is equal to the frequency domain resource size of the resource pool.

Optionally, when the frequency domain resource size of the second object is equal to the frequency domain resource size of the resource pool, the frequency domain resource position of the second object may be the same as or different from the frequency domain resource position of the resource pool.

It should be noted that the frequency domain resource information of the first object can be determined based on the frequency domain resource position, frequency domain resource offset value, and frequency domain resource size of the first object, or it can be determined based on the frequency domain resource position, frequency domain resource offset value, and frequency domain resource size of the first object. There is no limitation here.

In addition, the resource unit granularity of the frequency domain resource size may be the same as or different from the resource unit granularity of the frequency domain start position, frequency domain end position, etc. of the aforementioned second object. For example, the indication granularity of the offset value/frequency domain resource position is 1 subchannel, and the scheduling granularity is 4 subchannels.

Further, there may be multiple ways to determine the frequency domain resource granularity (or frequency domain resource unit, resource scheduling granularity) involved in or corresponding to the frequency domain resource information of the first object and the frequency domain resource information of the second object. For example, the frequency domain resource granularity may include M PRBs (or PRBs) or M subchannels, where M is an integer greater than or equal to 1. In this embodiment, M is determined according to at least one of the following (40)-(49).

(40)Parameters predefined by the protocol.

(41) Network configuration or pre-configured parameters.

(42)Terminal configuration parameters.

Among them, the parameter values of the parameters in the above (40)-(42) can be 1, 2, 3..., etc., that is, M=1, 2, 3...

(43) A frequency domain resource scheduling unit of a PSCCH, wherein the PSCCH is related to the target information, such as being used to carry the target information (such as SCI).

(44) A frequency domain resource scheduling unit for the first PSSCH.

(45) A frequency domain resource scheduling unit for the SL reference signal.

Among them, considering that the SL reference signal is scheduled with a large bandwidth and does not require too many candidate positions, in order to reduce the scheduling overhead, it is possible to consider including multiple sub-channels in the frequency domain resource granularity, that is, scheduling the SL reference signal with multiple sub-channels as the scheduling granularity, such as SLPRS, SLCSI-RS, etc.

(46) The frequency domain resource granularity indicated in the first-level SCI.

(47) The frequency domain resource granularity indicated in the second-level SCI.

(48) The frequency domain resource granularity indicated in the DCI.

(49) The bandwidth size of a resource pool or BWP, wherein the resource pool or BWP corresponds to the target object, such as used for transmission of the target object.

Wherein, S (S is an integer greater than 0) candidate indication positions may be predefined by the protocol or preconfigured by the network or configured by the network or the terminal, then, M=ceil(BW/S), where BW is the bandwidth of the resource pool or BWP, and ceil means rounding up.

It should be noted that when determining M based on the above (40)-(49), the frequency domain resource granularity M corresponding to the frequency domain resource information of the first object and the frequency domain resource granularity M corresponding to the frequency domain resource information of the second object may be the same or different, and there is no limitation here.

Further, in a possible implementation, when the frequency domain resource information of the first object is indicated by the first-level SCI, the first-level SCI is the SCI on the first time domain unit (such as time slot (slot) n), or the first-level SCI is the SCI in the first candidate resource (such as candidate resource m) on the first time domain unit (such as slot n). And/or, the first object is the information on the second time domain unit (such as slot n+k) reserved by the SCI on the first time domain unit (such as slot n), or the first object is the information in the second candidate resource (such as candidate resource m) in the second time domain unit (such as slot n+k) reserved by the SCI on the first time domain unit (such as slot n).

When the frequency domain resource information of the second object is indicated by the first-level SCI or the second-level SCI, the second-level SCI is the SCI on the third time domain unit (such as slot n), or the second-level SCI is the SCI in the second candidate resource (such as candidate resource m) on the third time domain unit (such as slot n). And/or, the second object is the information in the fourth time domain unit (such as slot n+k) reserved by the SCI in the third time domain unit (such as slot n), or the second object is the information in the second candidate resource (such as candidate resource m) in the fourth time domain unit (such as slot n+k) reserved by the SCI on the third time domain unit (such as slot n).

It can be understood that the aforementioned "k" can be one or more values, such as k1, k2. That is, there can be multiple candidate resources m in slot n+k (such as slot n+k1, slot n+k2) (that is, there can be multiple values of m). For example, if there are 2 sub-slots available for transmission, there are resources of candidate m1 and candidate m2 in slot n+k, which is suitable for scenarios that support SL reference signal transmission at the symbol level.

In addition, the aforementioned time domain unit may be but is not limited to a slot, a sub-slot, a frame, etc., and the first candidate resource and the second candidate resource may both include candidate frequency domain resources and/or candidate time domain resources.

S320: When the target information satisfies a first condition, the first terminal determines a transmission resource of the target object according to the target information.

Among them, the first condition includes at least one of the following (50)-(53).

(50) The target information includes the first-level SCI, and the format of the second-level SCI indicated in the first-level SCI is a specific format (also referred to as SCI format 2-D); wherein the second-level SCI in the specific format includes frequency domain resource information of the second object.

(51) The target information includes the first-level SCI, and a reserved bit in the first-level SCI is used to indicate a positioning UE.

(52) The target information includes the first-level SCI, and a reserved bit in the first-level SCI indicates that the second-level SCI is used to locate the UE.

(53) The target information includes the first-level SCI, and a reserved bit in the first-level SCI indicates that the second-level SCI is in a specific format, wherein the second-level SCI in the specific format includes the frequency domain resource information of the second object.

Based on the resource indication scheme on the SL provided by the aforementioned method embodiment 300, the resource indication scheme on the aforementioned SL is further exemplarily described below in combination with examples and drawings, as follows. It is assumed that resource indication is implemented based on a shared resource pool, the target information is SCI (such as the first-level SCI ( ^1st SCI), the second-level SCI ( ^2nd SCI)), and the target object is SL PRS or SL CSI-RS. Note: The following example takes SL PRS as an example, but it is also applicable to SL CSI-RS, such as the following SL PRS can be replaced with SL CSI-RS as an implementation method of this scheme.

Example 1

Assume that as shown in Figure 4a, the second-level SCI ( ^2nd SCI) is carried on the PSSCH, and the frequency domain range (or transmission resources) of the SL PRS is limited to the frequency domain range of the PSSCH, such as the frequency domain resources of the SL PRS are equal to or less than the frequency domain range of the SLPSSCH.

For example, the first-level SCI or PSCCH indicates frequency domain resource information of the PSSCH, such as the frequency domain range, and the frequency domain range of the SL PRS is within the frequency domain range of the PSSCH indicated by the first-level SCI.

The first-level SCI indicates N frequency domain starting positions (for example, if 3 frequency domain resources are reserved in FIG4a, 2 frequency domain starting positions are indicated), and the frequency domain resource size is 1. Then, the frequency domain starting positions of the reserved resources slot n+k1 and slot n+k2 are determined according to the frequency domain starting positions indicated by the first-level SCI.

In this example 1, backward compatibility of R16/R17 UEs in the shared resource pool can be guaranteed, such as compatibility with the SCI design of conventional (legacy UEs), and no new SCI format design is required.

Example 2

Assuming that the second-level SCI is carried on the second PSSCH (ie, 1 ^st PSSCH), the SL PRS occupies the bandwidth of the resource pool.

The first-level SCI refers to the frequency domain range of ^2nd SCI, PSSCH, and ^1st PSSCH. The bandwidth of SL PRS or the second part of PSSCH ( ^2nd PSSCH) defaults or is pre-configured to the bandwidth of the resource pool.

^1st SCI: The first-level SCI indicates N starting positions of frequency domain resources (if 3 frequency domain resources are reserved in Figure 4b, 2 frequency domain starting positions are indicated) and 1 frequency domain resource size. The starting position of the frequency domain resources is the starting position of ^{the 2nd} SCI/first part PSSCH of the reserved resources.

^2nd SCI: The frequency domain starting position of ^{the 2nd} SCI/first part of PSSCH is the same as the lowest subchannel or PRB of the ^1st SCI. (legacy UE behavior).

The first-level SCI indicates two intervals k1 and k2 (it may also indicate one interval k1 to reserve one resource).

If the R18 UE indicates to use the second-level SCI in a specific format, the SL PRS occupies the entire frequency domain resource bandwidth on n+k1 and n+k2.

However, for the above solution, the legacy UE reads the first-level SCI to exclude the frequency domain resources occupied by the ^1st PSSCH, and cannot exclude the frequency domain resources of the entire slot. Based on this, the above solution is further explained below in combination with several different scenarios.

Scenario 1

The second-level SCI is carried on the ^1st PSSCH, and the transmission resources of the SL PRS, such as bandwidth, are determined according to the frequency domain resource information indicated by the first-level SCI, wherein the frequency domain range of the SL PRS/second part PSSCH is indicated in the first-level SCI.

^1st SCI: The first-level SCI indicates N frequency domain starting positions (if 3 resources are reserved as shown in Figures 4c-4e, 2 starting positions are indicated) and 1 frequency domain resource size. (For example, indicating the starting position is PRB 0/subchannel 0). (legacy UE behavior)

^2nd SCI: Predefine, preconfigure or configure the frequency domain resource size of the second-level SCI/first part of PSSCH. (For example: the frequency domain resource size of the second-level SCI/first part of PSSCH is equal to the frequency domain resource size of the first-level SCI, etc.) The frequency domain starting position of PSCCH is the same as that of ^2nd SCI/first part of PSSCH.

The second-level SCI carries the RB/subchannel offset of the SL PRS.

In the above scenario 1, backward compatibility can be guaranteed, and at the same time, large bandwidth of SL PRS and SL PRSRE level multiplexing can be achieved.

It is worth noting that the difference between this scenario 1 and Example 1 is the position of the SL PRS. Because the SL PRS in Example 1 does not start from the first-level subchannel, an additional subchannel offset or RB offset indication is required to obtain the position of the SLPRS. At the same time, for the same time-frequency resources (different RE offsets), RE-level multiplexing of the SL PRS can be achieved.

For situation 1, considering that the second-level SCI (or PSSCH) is still mapped from the subchannel of the first-level SCI, there is no need to consume reserved bits in the first-level SCI to indicate the subchannel offset or RB offset of the PSSCH, and it is sufficient to indicate the subchannel offset of the SL PRS in the second-level SCI.

Scenario 2

The second-level SCI is carried on the 1st PSSCH, and the bandwidth of the second-level SCI/PSSCH/SL PRS is determined according to the information indicated by the first-level SCI. (The difference from situation 1 is that the PSSCH where the second-level SCI is located has the same bandwidth as the SL PRS.)

The first-level SCI indicates the frequency domain range of ^2nd SCI/PSSCH/first part of PSSCH; the frequency domain range of SL PRS/second part of PSSCH is determined according to the indication information of the first-level SCI.

^1st SCI: The first-level SCI indicates N frequency domain starting positions (if 3 resources are reserved as shown in FIG4f, 2 starting positions are indicated) and 1 frequency domain resource size.

The reserved bits in the first-level SCI indicate the frequency domain starting position offset of the PSSCH/SL PRS.

^2nd SCI: UE (such as R18 UE) determines the frequency domain starting position of PSSCH/SL PRS according to the FRIV (resource size of PSSCH/SL PRS) indicated by the first-level SCI and the resource offset of the second-level SCI/SL PRS.

In the above scenario 2, backward compatibility can be guaranteed.

Scenario 3

The second-level SCI is carried on the PSSCH, and the SL PRS occupies the bandwidth of the resource pool. The PSSCH is mapped starting from the lowest PRB/subchannel. (Compared to situation 2, the first-level SCI is not required to indicate the RB/subchannel offset of the second-level SCI relative to the PSCCH.)

The first-level SCI indicates the frequency domain range of ^2nd SCI/PSSCH/first part of PSSCH; the frequency domain range of SL PRS/second part of PSSCH is the bandwidth of the resource pool.

^1st SCI: The first-level SCI indicates N frequency domain starting positions (if 3 resources are reserved in Figure 4g, 2 starting positions are indicated) and 1 frequency domain resource size. The frequency domain resource starting position is PRB 0/subchannel 0, and the frequency domain resource size is the resource pool bandwidth size.

^2nd SCI: The frequency domain starting position of the preset ^2nd SCI/first part of PSSCH is the lowest PRB/lowest subchannel of the resource pool. If the R18 UE indicates to use the new second-level SCI, the UE starts to send/receive ^2nd SCI/PSSCH according to the preset lowest PRB/lowest subchannel.

In the aforementioned scenario 3, backward compatibility can be guaranteed, and there is no need to indicate the resource offset value of the PSSCH/SL PRS relative to the PSCCH, such as the resource block offset value and the subcarrier offset value.

Scenario 4

The second-level SCI is carried on the PSSCH, and the SL PRS is determined based on the frequency domain resources indicated by the SCI. The PSSCH is determined based on the first-level SCI position and the RB/subchannel offset. (More flexible, it can be used to implement RE level multiplexing)

The first-level SCI indicates the frequency domain range of ^2nd SCI/PSSCH/first part of PSSCH; the frequency domain range of SL PRS is determined according to the first-level SCI indication information.

^1st SCI: The first-level SCI indicates N frequency domain starting positions (if 3 resources are reserved as shown in FIG4h, 2 starting positions are indicated) and 1 frequency domain resource size.

The reserved bits in the first-level SCI indicate the frequency domain starting position offset of the second-level SCI/PSSCH.

^2nd SCI: The UE determines the location of the ^second- level SCI based on the frequency domain start offset of the 2nd SCI/PSSCH and the location of the PSCCH. Predefine/preconfigure/configure the frequency domain resource size of the second-level SCI/first part of the PSSCH. If it is an R18 UE/indicates the use of a new second-level SCI, the UE transmits the second-level SCI according to the above rules.

The second-level SCI carries the RB/subchannel offset of the SL PRS.

In the above scenario 4, backward compatibility can be guaranteed, flexibility is high, and RE level SL PRS multiplexing can be achieved.

Example 3

As shown in Figures 4i and 4j, it is assumed that the offset of the reserved resources is indicated in the second-level SCI ( ^2nd SCI), and the offset is the offset value between the frequency domain resource starting position of the SL PRS/PSSCH and the frequency domain resource starting position of the PSCCH. The second-level SCI of slot n indicates the RB offset 1 and RB offset 2 of the reserved resources (slot n+k1, slot n+k2), thereby realizing the flexible indication of the frequency domain resource size and position of the second-level SCI/PSSCH, which is also beneficial for the case where the second-level SCI and SL measurement report (measurement report, MR) are carried on the PSSCH, such as some slots do not have MR, and some slots have MR.

Example 4

As shown in Figure 4k, assuming that the network pre-configures and configures the resource scheduling granularity M of the target object (such as SL reference signal, PSSCH, second-level SCI) is 4, then the starting position of the frequency domain resource of the target object is the position of PRB N, where Nmod 4=0.

As shown in Figure 41, the resource scheduling granularity M of the network pre-configuration and configuration target objects (such as SL reference signal, PSSCH, and second-level SCI) is 4. Then, the starting position of the frequency domain resource of the target object is the position of PRB N, where N = [0, BW], and BW is the bandwidth of the resource pool/BWP.

As shown in Figure 5, it is a flow chart of a resource indication method 500 on a SL provided by an exemplary embodiment of the present application. The method 500 may be, but is not limited to, executed by a first terminal, and may be specifically executed by hardware and/or software installed in the first terminal. In this embodiment, the method 500 may at least include the following steps.

S510, the first terminal transmits target information.

The target information is used to indicate the transmission resources of the target object, and the target information includes at least one of DCI, SCI, and high-level information.

It can be understood that the implementation process of S510 can refer to the relevant descriptions in the aforementioned method embodiments 200-300, and achieve the same or corresponding technical effects. To avoid repetition, it will not be repeated here.

S520: The first terminal determines the transmission resources of the target object in the first resource pool according to the resource indication information carried by the target information.

The target information may be related to the first resource pool to implement resource scheduling in the same resource pool, or may be related to the second resource pool to implement resource scheduling across resource pools, which is not limited in this embodiment.

Based on this, in this embodiment, the process of the first terminal determining the transmission resources of the target object in the first resource pool according to the resource indication information carried by the target information may include: determining the transmission resources of the target object in the first resource pool according to the reference resources (such as reference time domain resources and/or reference frequency domain resources) and the resource indication information carried by the target information, such as determining the starting position, ending position, resource size, etc. of the transmission resource according to the resource indication information carried by the target information, and then determining the transmission resources of the target object in the first resource pool according to one or more of the reference resource and the starting position, ending position, resource size, etc. of the transmission resource. This embodiment does not impose any restrictions on this.

Optionally, the reference frequency domain resources include at least one of the following (60)-(68).

(60) Reference frequency domain resources predefined by the protocol.

(61) Reference frequency domain resources for network configuration.

(62) The reference frequency domain resources indicated by the DCI.

(63) The reference frequency domain resources indicated by the SCI.

(64) PRBs predefined or preconfigured or configured in the first resource pool.

Optionally, the "predefined or preconfigured or configured PRB" may be a PRB numbered with a predetermined value (such as 0), or may be the lowest PRB, the highest PRB, etc., which is not limited here.

(65) A PRB predefined, preconfigured or configured in a subchannel predefined, preconfigured or configured in the first resource pool.

Among them, the predefined or preconfigured or configured subchannel can be a subchannel numbered with a predetermined value (such as 0), or it can be the lowest subchannel, the highest subchannel, etc., and the predefined or preconfigured or configured PRB can be a PRB numbered with a predetermined value (such as 0), or it can be the lowest PRB, the highest PRB, etc., and there is no limitation here.

Based on this, the predefined or preconfigured or configured PRB in the predefined or preconfigured or configured subchannel in the first resource pool can be the N2th PRB in the N1th subchannel in the first resource pool, where N and M are integers greater than or equal to 0, such as N1=1, N2=1, etc.

(66) A preset PRB in a second resource pool or a preset PRB in a preset subchannel, wherein the second resource pool is related to the SCI, such as the SCI is transmitted based on the second resource pool.

In this embodiment, the preset PRB in the second resource pool or the preset PRB in the preset subchannel includes at least one of the following (a)-(f).

(a) The lowest PRB in the second resource pool.

(b) the lowest PRB in the lowest subchannel in the second resource pool.

(c) the lowest PRB or the highest PRB in the SCI frequency domain resources in the second resource pool.

(d) the lowest PRB or the highest PRB in the sub-channel where the SCI in the second resource pool is located.

(e) The lowest PRB in the lowest sub-channel where the SCI in the second resource pool is located.

(f) The highest PRB in the highest sub-channel where the SCI in the second resource pool is located.

(67) Frequency domain resource reference point A. The frequency domain resource reference point is implemented by protocol agreement, network configuration, etc.

(68) The lowest PRB or the highest PRB or the preset PRB in the BWP, and the BWP is related to the target object, such as the BWP is used for the transmission of the SL reference signal, PSSCH, etc. in the target object.

In this embodiment, when the target message is related to the second resource pool, the transmission resources of the target object in the first resource pool are determined by the resource indication information carried by the target information, so that resource scheduling across resource pools can be achieved, thereby reducing the impact of half-duplex and improving transmission success rate and system performance.

Optionally, the reference time domain resources include at least one of the following (70)-(79).

(70) Reference time domain resources predefined by the protocol.

(71) Reference time domain resources for network configuration.

(72) The reference time domain resource indicated by the DCI.

(73) The reference time domain resource indicated by the SCI.

(74) The time domain resource position of the second object in the first resource pool. For example, the SCI is in slot m in the second resource pool, indicating a time domain interval k1, and the time domain resources of the SL reference signal and PSSCH scheduled by the SCI are in slot n of the first resource pool.

(75) The time domain resource position of the SCI in the second resource pool, the second resource pool is related to the SCI. That is, in combination with the received SCI, similar to the way in which the DCI indicates the first SL PSSCH.

(76) The time domain resource location of the DCI.

(77) See Direct Frame Number (DFN).

(78) A preset DFN in the first resource pool, such as DFN 0 and DFN M in the first resource pool, where M is a value predefined by the protocol, configured by the network, or preconfigured by the network.

(79) A preset DFN in the second resource pool, such as DFN 0 and DFN M in the second resource pool, where M is a value predefined by the protocol, configured by the network, or preconfigured by the network.

In one implementation, when the first terminal determines the transmission resources of the target object in the first resource pool based on the resource indication information carried by the target information, if the resource indication information includes time domain indication information, then the time domain indication information may include the time domain resource unit offset between the SCI and the target object, wherein the target object includes the SL reference signal and/or the first PSSCH.

Optionally, as a possible implementation method, the protocol predefines, the network preconfigures or the network configures the candidate resource sets of the SCI, and the size and/or position of the candidate resource sets of the SCI is related to a third object, and the third object includes at least one of terminal capability information, priority of the SL reference signal, and quality of service of the SL reference signal.

It should be noted that the configuration of the candidate resource set of the SCI may be configured for each resource pool (per resource pool) or for each terminal (per UE).

For example, as shown in Figure 6a, assuming that the network pre-configures and configures the candidate resource set of SCI in the shared resource pool, the size or position of the candidate resource set is related to the terminal capability information, the priority of the SL reference signal or the service quality of the SL reference signal. Therefore, the R18 UE only needs to detect the transmission resources of the SCI in the candidate resource set of the SCI in the shared resource pool, which can save sensing energy.

It is worth noting that the dedicated resource pool (Dedicatedresource pool) shown in Figure 6a and subsequent Figures 6b and 6c can be understood as the aforementioned first resource pool, which is used for the transmission of SL PRS, SL PSSCH (such as SL positioning PSSCH), and the shared resource pool can be understood as the aforementioned second resource pool, which is used for the transmission of SCI, thereby realizing resource indication across resource pools.

Based on the resource indication method provided above, when the first terminal transmits a target object such as PSSCH (such as a measurement report), it can also determine the latency bound of the target object according to at least one of the following (81)-(84) to provide transmission reliability.

(81) Protocol-defined delay limits.

(82) Network configuration delay constraints.

(83)Terminal configuration delay limit.

For the aforementioned (81)-(83), the first terminal may determine the delay limit of the protocol pre-definition, network configuration (including pre-configuration), and terminal configuration as the delay limit of the target object.

(84) A first time. When determining the delay limit of the target object according to the first time, the delay limit of the target object may be determined with reference to the first time. The first time may be determined according to at least one of the following (a)-(d).

(a) The time domain unit where the SCI is located, such as calculating the delay limit by taking the time domain unit where the SCI is located as a reference.

(b) The time domain position of the SL reference signal, such as calculating the delay limit of the SL reference signal using the time domain unit where the SL reference signal is located as a reference.

Among them, for scheduling the SL reference signal across resource pools, the SL reference signal (corresponding to the first resource pool) and the target information (such as SCI, corresponding to the second resource pool) are at different time points.

(c) a time domain unit corresponding to the first resource pool, such as calculating the delay limit with reference to the time domain unit corresponding to the first resource pool.

(d) a time domain unit corresponding to the second resource pool, such as calculating the delay limit with reference to the time domain unit corresponding to the first resource pool.

It is worth noting that the "time domain unit" mentioned in the context of this application may be, but is not limited to, a time slot, etc., and is not limited here. In addition, the aforementioned delay limit may be a physical time or a logical time, or an absolute time or a relative time, and its unit may be milliseconds (ms) or slots, etc. For example, when the first resource pool is used as a reference, and the delay limit is a logical time, then the delay limit is determined with reference to the logical time of the time domain unit corresponding to the first resource pool.

Furthermore, when the first terminal determines the transmission resources of the target object in the first resource pool based on the resource indication information carried by the target information, the target information, in addition to carrying the resource indication information, can also be used to indicate or configure at least one of the repetition transmission parameters (such as the number of repeated transmissions), periodicity parameters (such as the transmission period, etc.), priority parameters, and the resource pool request for SL reference signal transmission (Pool request for SL PRS transmission) of the target object when the target information is high-level information.

Based on the description of the resource indication scheme on the SL provided in the aforementioned method embodiment 500, the aforementioned resource indication scheme on the SL is further introduced below with reference to an example, wherein it is assumed that the SL reference signal is the SL PRS.

Example 1

Assuming that the first terminal determines the transmission resource of the target object in the first resource pool according to the reference resource (such as the reference time domain resource) and the resource indication information carried by the target information (such as SCI 0), then:

As shown in Figure 6b, gaps 1 and 2 indicated in SCI 0 are used to determine reserved resources (i.e., transmission resources of SL PRS), and gaps 1 and 2 are gaps relative to reference time domain resources. The reference resource is the location of a pre-configured or configured DFNM, or the value of DFN indicated in the DCI or SCI.

Then, the SL PRS scheduled by SCI 0 is determined according to gap 1 in SCI 0 and reference resources (such as reference DFN); the SL PRS reserved by SCI 0 is determined according to gap 2 in SCI 0 and reference resources.

In Example 1, the transmission resources of the target object are determined by the resource indication information carried by the SCI, similar to the mode 1 DCI indicating the location of the first SL PSSCH.

Example 2

Assuming that the first terminal determines the transmission resource of the target object in the first resource pool according to the reference resource (such as the reference time domain resource) and the resource indication information (such as the time domain resource indication information) carried by the target information (such as SCI 0), then:

As shown in Fig. 6c, the DFN value and gap of SL PRS 0 are indicated in SCI 0. The gap is the interval of resources relative to SL PRS 0 indicated by SCI 0 (ie, the time domain resource unit offset).

Then, the UE can determine the position of SL PRS 0 according to the DFN value indicated by SCI 0, and determine the position of the reserved resources according to the DFN value and the gap.

In this embodiment, the first terminal receives the target information and determines the transmission resource of the target object in the first resource pool according to the resource indication information carried by the target information, thereby realizing resource scheduling of the same resource pool and resource scheduling across resource pools, effectively ensuring the flexibility of resource scheduling. In particular, when realizing resource scheduling across resource pools, the influence of half-duplex can be reduced, thereby improving the transmission success rate and system performance.

As shown in Figure 7, it is a flow chart of a method 700 for indicating resources on a SL provided by an exemplary embodiment of the present application. The method 700 may be, but is not limited to, executed by a first terminal, and may be specifically executed by hardware and/or software installed in the first terminal. In this embodiment, the method 700 may at least include the following steps.

S710, the first terminal transmits target information.

The target information is used to indicate the transmission resources of the target object, and the target information includes at least one of DCI, SCI, and high-level information.

It can be understood that the implementation process of S710 can refer to the relevant descriptions in the aforementioned method embodiments 200-500, and achieve the same or corresponding technical effects. To avoid repetition, it will not be repeated here.

S720, the target information includes the SCI, and the transmission resource of the target object is determined according to at least one of the frequency domain resource position of the SCI, the time domain resource position of the SCI, and the index of the SCI.

Among them, taking the target object as the SL reference signal as an example, the transmission resources of the SL reference signal may include at least one of the starting position of time domain resources, the ending position of time domain resources, the starting position of frequency domain resources, the ending position of frequency domain resources, bandwidth, frequency domain resource offset value, and index.

Based on this, the first terminal determines the transmission resource of the target object according to the frequency domain resource position of the SCI, which may include at least one of the following (90)-(95).

(90) Determine the frequency domain resource starting position and/or frequency domain resource ending position of the SL reference signal according to the frequency domain resource position and comb size (comb size N) of the SCI.

For example, the value of F_SL=F_SCI/N is rounded down, where F_SL represents the frequency domain resource start position or the frequency domain resource end position of the SL reference signal, F_SCI represents the frequency domain resource position of the SCI, and N is the comb size.

It can be understood that the comb size N mentioned in this embodiment can be predefined by protocol, preconfigured by network, configured by network, or implemented by terminal configuration. The frequency domain resource position of the SCI can be the number of the frequency domain resource unit where the SCI is located, such as the number of the maximum frequency domain resource unit in the frequency domain resource unit corresponding to the SCI, the number of the minimum frequency domain resource unit, the number of the candidate resource unit of the SCI, etc., wherein the aforementioned "resource unit" can be the sub-channel, the PRB in the sub-channel (such as the lowest PRB, etc.).

It is worth noting that, in the case where one SCI occupies multiple sub-channels, the frequency domain resource position of the SCI may also be the number of the candidate resource.

(91) Determine the frequency domain resource offset value of the SL reference signal according to the frequency domain resource position and comb size of the SCI.

For example, Reoffset_SL=the remainder of F_SCI/N, where Reoffset_SL represents the frequency domain resource offset value of the SL reference signal, F_SCI represents the frequency domain resource position of the SCI, and N is the comb size.

(92) Determine the starting position and/or ending position of the frequency domain resources of the SL reference signal according to the frequency domain resource position, comb size, and time domain resource candidate value of the SCI.

For example, the value of F_SL=F_SCI/(N*L) is rounded down, or F_SL=(remainder of F_SCI/(N*L))/L, wherein F_SL represents the starting position of the frequency domain resources or the ending position of the frequency domain resources of the SL reference signal, F_SCI represents the frequency domain resource position of the SCI, N is the comb size, and L is the candidate value of the time domain resources, which can be implemented by protocol pre-definition, network pre-configuration, network configuration, or terminal configuration.

(93) Determine the frequency domain resource offset value of the SL reference signal according to the frequency domain resource position, comb size, and time domain resource candidate value of the SCI.

For example, Reoffset_SL = (F_SCI / (N*L) remainder) / N remainder, or Reoffset_SL = (F_SCI / (N*L) remainder) / L remainder. Wherein, F_SL represents the frequency domain resource offset value of the SL reference signal, F_SCI represents the frequency domain resource position of the SCI, N is the comb size, and L is the time domain resource candidate value.

(94) Determine the time domain resource starting position and/or time domain resource ending position of the SL reference signal according to the frequency domain resource position, comb size, and time domain resource candidate value of the SCI.

For example, the value of T_SL=(remainder of F_SCI/(N*L))/N is rounded down, or the value of T_SL=(remainder of F_SCI/(N*L))/L is rounded down, or the value of T_SL=F_SCI/(N*L) is rounded down. Wherein, T_SL represents the time domain resource starting position and/or the time domain resource ending position of the SL reference signal, F_SCI represents the frequency domain resource position of the SCI, N is the comb size, and L is the time domain resource candidate value.

In the determination method of the transmission resources described in (90)-(94) above, F_SL represents the position of the frequency domain candidate resource of the F_SL+1th SL reference signal. For example: (F_SL*F) frequency domain resources are the frequency domain resource positions of the SL reference signal, and F is the frequency domain resource scheduling unit of the SL reference signal, or the frequency domain resource size of the SL reference signal.

Similarly, T_SL represents the position of the time domain candidate resource of the T_SL+1th SL reference signal.

(95) Determine the index of the SL reference signal according to the frequency domain resource position of the SCI.

For example, the index of the SL reference signal is the frequency domain resource position of the SCI, etc.

Furthermore, in addition to the aforementioned determination of the frequency domain resource position, for the case where the transmission resource of the SL reference signal is bandwidth, the bandwidth satisfies at least one of the following (101)-(102), thereby ensuring that the bandwidth used by different terminals when transmitting SL reference signals can occupy the same frequency domain range.

(101) The bandwidth is L*2 ^x , where L is a unit bandwidth value and x is an integer greater than or equal to 0.

For example, L can be 10M, and x can be 0, 1, 2, etc.

(102) The maximum value of the bandwidth is a bandwidth value of a target resource pool, and the target resource pool is a resource pool for transmitting the first object or the second object.

Based on the description of the resource indication scheme on the SL provided in the aforementioned method embodiment 700, the aforementioned resource indication scheme on the SL is further introduced below with reference to an example, wherein it is assumed that the SL reference signal is the SL PRS.

Example 1

Assume that the protocol pre-defined, network configured, network pre-configured or terminal configured PSCCH is transmitted in 1 subchannel, and the comb size comb size N of SL PRS is configured in the resource pool = 4. The frequency domain resource starting position (F_PRS) and frequency domain resource offset value (REoffset_PRS) of SL PRS are determined according to the frequency domain resource position of SCI, such as F_PRS = (the value of F_SCI/N is rounded down), REoffset_PRS = (the remainder of F_SCI/N).

Wherein, F_PRS represents the position of the F_PRS+1th SL PRS frequency domain candidate resource. The F_PRS*F frequency domain resource unit is the frequency domain resource position of the SL PRS. F is the frequency domain resource scheduling unit of the SL PRS, or the frequency domain resource size of the SL PRS.

Then, as shown in FIG8a to FIG8c, the process of determining the frequency domain resource starting position F_PRS and the frequency domain resource offset value REoffset_PRS of the SL PRS is as follows.

The frequency domain starting position of SL PRS 0 = F_SCI/N rounded down, that is, F_PRS = 0/4 rounded down = 0, and REoffset_PRS of SL PRS 0 = the remainder of F_SCI/N, that is, the remainder of 0/4 = 0.

The frequency domain starting position of SL PRS 1 = F_SCI/N rounded down, that is, F_PRS = 1/4 rounded down = 0, and REoffset_PRS of SL PRS 1 = the remainder of F_SCI/N, that is, the remainder of 1/4 = 1.

The frequency domain starting position of SL PRS 2=F_SCI/N rounded down, that is, F_PRS=2/4 rounded down=0, and REoffset_PRS of SL PRS 2=the remainder of F_SCI/N, that is, the remainder of 2/4=2.

The frequency domain starting position of SL PRS 3 = F_SCI/N rounded down, that is, F_PRS = 3/4 rounded down = 0, and REoffset_PRS of SL PRS 3 = the remainder of F_SCI/N, that is, the remainder of 3/4 = 3.

Alternatively, as shown in FIG8 d , the process of determining the frequency domain resource starting position F_PRS and the frequency domain resource offset value REoffset_PRS of the SL PRS is as follows.

The frequency domain starting position of SL PRS 0 = F_SCI/N rounded down, that is, F_PRS = 0/4 rounded down = 0, and REoffset_PRS of SL PRS 0 = the remainder of F_SCI/N, that is, the remainder of 0/4 = 0.

The frequency domain starting position of SL PRS 1 = F_SCI/N rounded down, that is, F_PRS = 1/4 rounded down = 0, and REoffset_PRS of SL PRS 1 = the remainder of F_SCI/N, that is, the remainder of 1/4 = 1.

The frequency domain starting position of SL PRS 2=F_SCI/N rounded down, that is, F_PRS=2/4 rounded down=0, and REoffset_PRS of SL PRS 2=the remainder of F_SCI/N, that is, the remainder of 2/4=2.

The frequency domain starting position of SL PRS 3 = F_SCI/N rounded down, that is, F_PRS = 3/4 rounded down = 0, and REoffset_PRS of SL PRS 3 = the remainder of F_SCI/N, that is, the remainder of 3/4 = 3.

The frequency domain starting position of SL PRS 4=F_SCI/N rounded down, that is, F_PRS=4/4 rounded down=1, and REoffset_PRS of SL PRS 4=the remainder of F_SCI/N, that is, the remainder of 4/4=0.

The frequency domain starting position of SL PRS 5=F_SCI/N rounded down, that is, F_PRS=5/4 rounded down=1, and REoffset_PRS of SL PRS 5=the remainder of F_SCI/N, that is, the remainder of 5/4=1.

The frequency domain starting position of SL PRS 6=F_SCI/N rounded down, that is, F_PRS=6/4 rounded down=1, and REoffset_PRS of SL PRS 6=the remainder of F_SCI/N, that is, the remainder of 6/4=2.

The frequency domain starting position of SL PRS 7=F_SCI/N rounded down, that is, F_PRS=7/4 rounded down=1, and REoffset_PRS of SL PRS 7=the remainder of F_SCI/N, that is, the remainder of 7/4=3.

Example 2

Assuming that the protocol predefines, the network configures, the network preconfigures or the terminal configures PSCCH to be transmitted in 1 subchannel, the comb size N=2 of SL PRS is configured in the resource pool, and the number of time domain resource candidates of SL PRS is L, then the frequency domain resource starting position F_PRS, the time domain resource starting position T_PRS and the frequency domain resource offset value REoffset_PRS of SL PRS are determined according to the frequency domain resource position of SCI.

Among them, the methods for determining F_PRS, T_PRS and REoffset_PRS of SL PRS include F_PRS = (the value of F_SCI/(N*L) is rounded down), REoffset_PRS = (remainder of F_SCI/(N*L))/remainder of N (that is, first use F_SCI to take the remainder of (N*L), and then use the obtained remainder to take the remainder of N to obtain the RE offset of SL PRS), and T_PRS = (remainder of F_SCI/(N*L))/N is rounded down, thereby realizing the method of first determining the F_PRS, T_PRS and REoffset_PRS of SL PRS in the RE level frequency domain, then in the time domain, and finally in the frequency domain.

The determination process is described below in conjunction with FIG. 8e , as follows.

The frequency domain starting position of SL PRS 0 = F_SCI/(N*L) rounded down, that is, F_PRS = 0/(2*2) rounded down = 0, REoffset_PRS of SL PRS 0 = (remainder of F_SCI/(N*L))/remainder of N, that is, remainder of (0/(2*2))/2 = 0; the time domain resource starting position of SL PRS 0 = (remainder of F_SCI/(N*L))/N value rounded down, that is, remainder of (0/(2*2))/2 value rounded down = 0.

The frequency domain starting position of SL PRS 1 = F_SCI/(N*L) rounded down, that is, F_PRS = 1/(2*2) rounded down = 0, the RE offset value REoffset_PRS of SL PRS 1 = (remainder of F_SCI/(N*L))/remainder of N, that is, remainder of (remainder of 1/(2*2))/2 = 1; the time domain resource starting position of SL PRS 1 = (remainder of F_SCI/(N*L))/N value rounded down, that is, remainder of (1/(2*2))/2 value rounded down = 0.

The frequency domain starting position of SL PRS 2 = F_SCI/(N*L) rounded down, that is, F_PRS = 2/(2*2) rounded down = 0, the RE offset value REoffset_PRS of SL PRS 2 = (remainder of F_SCI/(N*L))/remainder of N, that is, remainder of (remainder of 2/(2*2))/2 = 0; the time domain resource starting position of SL PRS 2 = (remainder of F_SCI/(N*L))/N value rounded down, that is, remainder of (2/(2*2))/2 value rounded down = 1.

The starting position of SL PRS 3 in frequency domain = F_SCI/(N*L) rounded down, that is, F_PRS = 3/(2*2) rounded down = 0, the RE offset value REoffset_PRS of SL PRS 3 = (remainder of F_SCI/(N*L))/remainder of N, that is, remainder of (remainder of 3/(2*2))/2 = 1; the starting position of SL PRS 3 in time domain resources = (remainder of F_SCI/(N*L))/N value rounded down, that is, remainder of (3/(2*2))/2 value rounded down = 1.

The frequency domain starting position of SL PRS 4 = F_SCI/(N*L) rounded down, that is, F_PRS = 4/(2*2) rounded down = 1, the RE offset value REoffset_PRS of SL PRS 4 = (remainder of F_SCI/(N*L))/remainder of N, that is, remainder of (remainder of 4/4)/2 = 0; the time domain resource starting position of SL PRS 4 = (remainder of F_SCI/(N*L))/N value rounded down, that is, the value of (remainder of 4/4)/2 rounded down = 0.

The frequency domain starting position of SL PRS 5 = F_SCI/(N*L) rounded down, that is, F_PRS = 5/(2*2) rounded down = 1, the RE offset value REoffset_PRS of SL PRS 5 = (remainder of F_SCI/(N*L))/remainder of N, that is, remainder of (remainder of 5/4)/2 = 1; the time domain resource starting position of SL PRS 5 = (remainder of F_SCI/(N*L))/N value rounded down, that is, the value of (remainder of 5/4)/2 rounded down = 0.

The frequency domain starting position of SL PRS 6 = F_SCI/(N*L) rounded down, that is, F_PRS = 6/(2*2) rounded down = 1, the RE offset value REoffset_PRS of SL PRS 6 = (remainder of F_SCI/(N*L))/remainder of N, that is, remainder of (remainder of 6/4)/2 = 0; the time domain resource starting position of SL PRS 6 = (remainder of F_SCI/(N*L))/N value rounded down, that is, the value of (remainder of 6/4)/2 rounded down = 1.

The frequency domain starting position of SL PRS 7 = F_SCI/(N*L) rounded down, that is, F_PRS = 7/(2*2) rounded down = 1, the RE offset value REoffset_PRS of SL PRS 7 = (remainder of F_SCI/(N*L))/remainder of N, that is, remainder of (remainder of 7/4)/2 = 1; the time domain resource starting position of SL PRS 7 = (remainder of F_SCI/(N*L))/N value rounded down, that is, (remainder of 6/4)/2 value rounded down = 1.

Of course, the method for determining the F_PRS, T_PRS and REoffset_PRS of the SL PRS may also include: F_PRS = (remainder of F_SCI/(N*L))/L, rounded down, REoffset_PRS = (remainder of F_SCI/(N*L))/L, T_PRS = (remainder of F_SCI/(N*L))/L, T_PRS = (rounded down). Thus, the F_PRS, T_PRS and REoffset_PRS of the SL PRS are determined in the manner of first RE level frequency domain, then frequency domain, and then time domain. A mapping method different from the aforementioned method of determining the F_PRS, T_PRS and REoffset_PRS of the SL PRS in the manner of first RE level frequency domain, then time domain, and then frequency domain is implemented.

The determination process is described below in conjunction with FIG. 8f as follows.

The frequency domain starting position of SL PRS 0 = the value of (the remainder of F_SCI/(N*L))/L rounded down, that is, the value of (the remainder of 0/(2*2))/2 rounded down = 0, REoffset_PRS of SL PRS 0 = the remainder of (the remainder of F_SCI/(N*L))/L, that is, the remainder of (0/(2*2))/2 = 0; the time domain resource starting position of SL PRS 0 = F_SCI/(N*L) rounded down, that is, F_PRS = 0/(2*2) rounded down = 0.

The frequency domain starting position of SL PRS 1 = the value of (the remainder of F_SCI/(N*L))/L rounded down, that is, the value of (the remainder of 1/(2*2))/2 rounded down = 0, the RE offset value REoffset_PRS of SL PRS 1 = the remainder of (the remainder of F_SCI/(N*L))/L, that is, the remainder of (the remainder of 1/(2*2))/2 = 1; the time domain resource starting position of SL PRS 1 = F_SCI/(N*L) rounded down, that is, F_PRS = 1/(2*2) rounded down = 0.

The frequency domain starting position of SL PRS 2 = the value of (the remainder of F_SCI/(N*L))/L rounded down, that is, the value of (the remainder of 2/(2*2))/2 rounded down = 1, the RE offset value REoffset_PRS of SL PRS 2 = the remainder of (the remainder of F_SCI/(N*L))/L, that is, the remainder of (the remainder of 2/(2*2))/2 = 0; the time domain resource starting position of SL PRS 2 = F_SCI/(N*L) rounded down, that is, F_PRS = 2/(2*2) rounded down = 0.

The frequency domain starting position of SL PRS 3 = the value of (the remainder of F_SCI/(N*L))/L rounded down, that is, the value of (the remainder of 3/(2*2))/2 rounded down = 1, the RE offset value REoffset_PRS of SL PRS 3 = the remainder of (the remainder of F_SCI/(N*L))/L, that is, the remainder of (the remainder of 3/(2*2))/2 = 1; the time domain resource starting position of SL PRS 3 = F_SCI/(N*L) rounded down, that is, F_PRS = 3/(2*2) rounded down = 0.

The frequency domain starting position of SL PRS 4 = the value of (remainder of F_SCI/(N*L))/L rounded down, that is, the value of (remainder of 4/4)/2 rounded down = 0, the RE offset value REoffset_PRS of SL PRS 4 = the remainder of (remainder of F_SCI/(N*L))/L, that is, the remainder of (remainder of 4/4)/2 = 0; the time domain resource starting position of SL PRS 4 = F_SCI/(N*L) rounded down, that is, F_PRS = 4/(2*2) rounded down = 1.

The frequency domain starting position of SL PRS 5 = the value of (remainder of F_SCI/(N*L))/L rounded down, that is, the value of (remainder of 5/4)/2 rounded down = 0, the RE offset value REoffset_PRS of SL PRS 5 = the remainder of (remainder of F_SCI/(N*L))/L, that is, the remainder of (remainder of 5/4)/2 = 1; the time domain resource starting position of SL PRS 5 = F_SCI/(N*L) rounded down, that is, F_PRS = 5/(2*2) rounded down = 1.

The frequency domain starting position of SL PRS 6 = the value of (remainder of F_SCI/(N*L))/L rounded down, that is, the value of (remainder of 6/4)/2 rounded down = 1, the RE offset value REoffset_PRS of SL PRS 6 = the remainder of (remainder of F_SCI/(N*L))/L, that is, the remainder of (remainder of 6/4)/2 = 0; the time domain resource starting position of SL PRS 6 = F_SCI/(N*L) rounded down, that is, F_PRS = 6/(2*2) rounded down = 1.

The frequency domain starting position of SL PRS 7 = the value of (remainder of F_SCI/(N*L))/L rounded down, that is, the value of (remainder of 6/4)/2 rounded down = 1, the RE offset value REoffset_PRS of SL PRS 7 = the remainder of (remainder of F_SCI/(N*L))/L, that is, the remainder of (remainder of 7/4)/2 = 1; the time domain resource starting position of SL PRS 7 = F_SCI/(N*L) rounded down, that is, F_PRS = 7/(2*2) rounded down = 1.

In this embodiment, for the case where the target object is a SL reference object, by receiving the SCI and determining the transmission resource of the target object according to at least one of the frequency domain resource position of the SCI, the time domain resource position of the SCI, and the index of the SCI, the backward compatibility of the R16/R17 UE in the shared resource pool can be guaranteed when the SCI scheduling transfers the resources of the resource pool in the shared resource pool. At the same time, the time division multiplexing (TDM) or frequency division multiplexing (FDM) of the R18 SL positioning UE in the shared resource pool can be realized.

As shown in Figure 9, it is a flow chart of a resource indication method 900 on a SL provided by an exemplary embodiment of the present application. The method 900 may be, but is not limited to, executed by a network side device, and specifically may be executed by hardware and/or software installed in the network side device. In this embodiment, the method 900 may at least include the following steps.

S910, the network side device sends target information.

The target information is used to indicate the transmission resources of the target object, and the target information includes at least one of downlink control information DCI and high-layer information.

Optionally, the target object includes at least one of a second-level SCI, a first physical sub-link shared channel PSSCH, a second PSSCH, a third PSSCH, and an SL reference signal, and the content carried by the first PSSCH includes the content carried by the second PSSCH or the content carried by the third PSSCH.

It can be understood that the resource indication method on the SL provided by method embodiment 900 has the same or corresponding technical features as the aforementioned method embodiments 200-700. Therefore, the relevant description of the resource indication method on the SL provided by method embodiment 900 can refer to the relevant description in the aforementioned method embodiments 200-700, and achieve the same or corresponding technical effects. To avoid repetition, it will not be repeated here.

The resource indication method on SL provided in the embodiment of the present application may be executed by a resource indication device on SL. In the embodiment of the present application, the resource indication device on SL is taken as an example to illustrate the resource indication method on SL provided in the embodiment of the present application.

As shown in Figure 10, it is a structural diagram of a resource indication device 1000 on the SL provided in an embodiment of the present application, wherein the device 100 includes a transmission module 1010 for transmitting target information; wherein the target information is used to indicate the transmission resources of the target object, and the target information includes at least one of downlink control information DCI, sub-link control information SCI, and high-level information.

Optionally, the resource indication device 1000 on the SL may further include a processing module, configured to generate the target information according to terminal positioning or beam training requirements on the SL, or parse the target information.

Optionally, the target object includes at least one of a second-level SCI, a first physical sub-link shared channel PSSCH, a second PSSCH, a third PSSCH, and an SL reference signal, and the content carried by the first PSSCH includes the content carried by the second PSSCH or the content carried by the third PSSCH.

Optionally, the target information includes SCI, the SCI includes first-level SCI and/or second-level SCI; the first-level SCI includes frequency domain resource information of the first object or the second object, and the second-level SCI includes frequency domain resource information of the second object; the first object includes at least one of the second-level SCI, the first PSSCH, and the second PSSCH, and the second object includes at least one of the SL reference signal and the third PSSCH.

Optionally, the frequency domain resource information of the first object includes at least one of the following: an offset value of the frequency domain position of the first object relative to the frequency domain position of the first-level SCI; the frequency domain position of the first object; the frequency domain resource size of the first object; and/or, the frequency domain resource information of the second object includes at least one of the following: an offset value of the frequency domain position of the second object relative to the frequency domain position of the first SCI; an offset value of the frequency domain position of the second object relative to the frequency domain position of the second-level SCI; the frequency domain position of the second object; the frequency domain resource size of the second object.

Optionally, the frequency domain position of the first object is determined according to a first reference position; wherein the first reference position includes at least one of the following: a frequency domain resource position corresponding to a predefined, preconfigured or configured subchannel in a resource pool; a frequency domain resource position corresponding to a predefined, preconfigured or configured physical resource block in a resource pool; a frequency domain resource position corresponding to a predefined, preconfigured or configured physical resource block PRB in a bandwidth part BWP; a frequency domain resource position corresponding to the lowest PRB or the highest PRB or the predefined PRB or the preconfigured PRB or the configured PRB in the largest subchannel in the resource pool; a frequency domain resource position corresponding to the maximum PRB in the BWP Frequency domain resource position; and/or, the frequency domain position of the second object is determined based on a second reference position, wherein the second reference position includes at least one of the following: a frequency domain resource position corresponding to a subchannel predefined or preconfigured or configured in a resource pool; a frequency domain resource position corresponding to a PRB predefined or preconfigured or configured in a resource pool; a frequency domain resource position corresponding to a PRB predefined or preconfigured or configured in a BWP; a frequency domain resource position corresponding to a lowest PRB or a highest PRB in a maximum subchannel in a resource pool; a frequency domain resource position corresponding to a maximum PRB in a BWP; wherein the resource pool and the BWP are related to the target object.

Optionally, the frequency domain resource information of the first object includes a frequency domain resource size, and the frequency domain resource size of the first object satisfies at least one of the following: the frequency domain resource size of the first object is predefined by the protocol; the frequency domain resource size of the first object is preconfigured by the network; the frequency domain resource size of the first object is configured by the network; the frequency domain resource size of the first object is configured by the terminal; the frequency domain resource size of the first object is equal to the frequency domain resource size of the PSCCH, and the PSCCH is related to the target information; the frequency domain resource size of the first object is equal to the frequency domain resource size of the SL reference signal; the frequency domain resource size of the first object is equal to the frequency domain resource size of the resource pool; And/or; The frequency domain resource information of the second object includes the frequency domain resource size, and the frequency domain resource size of the second object satisfies at least one of the following: the frequency domain resource size of the second object is predefined by the protocol; the frequency domain resource size of the second object is preconfigured by the network; the frequency domain resource size of the second object is configured by the network; the frequency domain resource size of the second object is configured by the terminal; the frequency domain resource size of the second object is equal to the size of the frequency domain resources of the first level SCI or the second level SCI; the frequency domain resource size of the second object is equal to the size of the frequency domain resources of the second PSSCH; the frequency domain resource size of the second object is equal to the frequency domain resource size of the resource pool.

Optionally, the frequency domain resource granularity corresponding to the frequency domain resource information includes M PRBs or M subchannels; wherein, the M is determined according to at least one of the following: parameters predefined by the protocol; parameters configured by the network; parameters configured by the terminal; a frequency domain resource scheduling unit of the PSCCH, wherein the PSCCH is related to the target information; a frequency domain resource scheduling unit of the first PSSCH; a frequency domain resource scheduling unit of the SL reference signal; the frequency domain resource granularity indicated in the first-level SCI; the frequency domain resource granularity indicated in the second-level SCI; the frequency domain resource granularity indicated in the DCI; and the bandwidth size of the resource pool.

Optionally, the apparatus 1000 further includes: a first determination module, configured to determine, if the target information satisfies a first condition, a transmission resource of the target object according to the target information; wherein the first condition includes at least one of the following:

The target information includes the first-level SCI, and the format of the second-level SCI indicated in the first-level SCI is a specific format; the target information includes the first-level SCI, and the reserved bit reservedbit in the first-level SCI is used to indicate the positioning of the UE; the target information includes the first-level SCI, and the reservedbit in the first-level SCI indicates that the second-level SCI is used to position the UE; the target information includes the first-level SCI, and the reservedbit in the first-level SCI indicates that the second-level SCI is in a specific format; wherein the second-level SCI in the specific format includes frequency domain resource information of the second object.

Optionally, at least one of the following is satisfied: the first-level SCI is the SCI on the first time domain unit, or the first-level SCI is the SCI in the first candidate resource on the first time domain unit; the first object is the information on the second time domain unit reserved for the SCI on the first time domain unit, or the first object is the information in the second candidate resource in the second time domain unit reserved for the SCI on the first time domain unit; the second-level SCI is the SCI on the third time domain unit, or the second-level SCI is the SCI in the second candidate resource on the third time domain unit; the second object is the information in the fourth time domain unit reserved for the SCI in the third time domain unit, or the second object is the information in the second candidate resource in the fourth time domain unit reserved for the SCI on the third time domain unit; wherein the first candidate resources include candidate frequency domain resources and/or candidate time domain resources, and the second candidate resources include candidate frequency domain resources and/or candidate time domain resources.

Optionally, the device 1000 further includes: a second determination module, configured to determine the transmission resource of the target object in the first resource pool according to the resource indication information carried by the target information.

Optionally, the second determination module determines the transmission resources of the target object in the first resource pool according to the resource indication information carried by the target information, including: determining the transmission resources of the target object in the first resource pool according to the reference resources and the resource indication information carried by the target information, the reference resources including reference time domain resources and/or reference frequency domain resources.

Optionally, the reference frequency domain resources include at least one of the following: reference frequency domain resources predefined by the protocol; reference frequency domain resources configured by the network; reference frequency domain resources indicated by the DCI; reference frequency domain resources indicated by the SCI; PRB predefined or preconfigured or configured in the first resource pool; PRB predefined or preconfigured or configured in a subchannel predefined or preconfigured or configured in the first resource pool; preset PRB in a second resource pool or preset PRB in a preset subchannel, the second resource pool being related to the SCI; frequency domain resource reference point A; the lowest PRB or the highest PRB or preset PRB in a BWP, the BWP being related to the target object.

Optionally, the preset PRB in the second resource pool or the preset PRB in the preset subchannel includes at least one of the following: the lowest PRB in the second resource pool; the lowest PRB in the lowest subchannel in the second resource pool; the lowest PRB or the highest PRB in the SCI frequency domain resources in the second resource pool; the lowest PRB or the highest PRB in the subchannel where the SCI is located in the second resource pool; the lowest PRB in the lowest subchannel where the SCI is located in the second resource pool; the highest PRB in the highest subchannel where the SCI is located in the second resource pool.

Optionally, the reference time domain resources include at least one of the following: reference time domain resources predefined by the protocol; reference time domain resources configured by the network; reference time domain resources indicated by the DCI; reference time domain resources indicated by the SCI; the time domain resource position of the second object in the first resource pool; the time domain resource position of the SCI in the second resource pool, the second resource pool being related to the SCI; the time domain resource position of the DCI; reference direct frame number DFN; preset DFN in the first resource pool; preset DFN in the second resource pool.

Optionally, the resource indication information includes time domain indication information, and the time domain indication information includes a time domain resource unit offset between the SCI and the target object, wherein the target object includes the SL reference signal and/or the first PSSCH.

Optionally, the size and/or position of the candidate resource set of the SCI is related to a third object, and the third object includes at least one of terminal capability information, priority of the SL reference signal, and quality of service of the SL reference signal.

Optionally, the first determination module is also used to: determine the delay limit of the target object based on at least one of the following: a delay limit predefined by the protocol; a delay limit configured by the network; a delay limit configured by the terminal; a first time; wherein the first time is determined based on at least one of the following: the time domain unit where the SCI is located; the time domain position where the SL reference signal is located; the time domain unit corresponding to the first resource pool; the time domain unit corresponding to the second resource pool.

Optionally, the high-level information is also used to indicate or configure at least one of the following: a repetition transmission parameter; a period parameter; a priority parameter; and a resource pool request for transmission of the SL reference signal.

Optionally, the target information includes SCI, and the device 1000 also includes: a third determination module, used to determine the transmission resource of the target object based on at least one of the frequency domain resource position of the SCI, the time domain resource position of the SCI, and the index of the SCI.

Optionally, the target object includes the SL reference signal, and the transmission resources of the SL reference signal include at least one of a time domain resource starting position, a time domain resource ending position, a frequency domain resource starting position, a frequency domain resource ending position, a bandwidth, a frequency domain resource offset value, and an index.

Optionally, the third determination module determines the transmission resources of the target object according to the frequency domain resource position of the SCI, including at least one of the following: determining the frequency domain resource starting position and/or the frequency domain resource ending position of the SL reference signal according to the frequency domain resource position and comb size of the SCI; determining the frequency domain resource offset value of the SL reference signal according to the frequency domain resource position, comb size, and time domain resource candidate values of the SCI; determining the frequency domain resource starting position and/or the ending position of the SL reference signal according to the frequency domain resource position, comb size, and time domain resource candidate values of the SCI; determining the frequency domain resource offset value of the SL reference signal according to the frequency domain resource position, comb size, and time domain resource candidate values of the SCI; determining the time domain resource starting position and/or the time domain resource ending position of the SL reference signal according to the frequency domain resource position, comb size, and time domain resource candidate values of the SCI; determining the index of the SL reference signal according to the frequency domain resource position of the SCI.

Optionally, the transmission resources of the SL reference signal include bandwidth, and the bandwidth satisfies at least one of the following: the bandwidth is L*2 ^x , L is the unit bandwidth value, and x is an integer greater than or equal to 0; the maximum value of the bandwidth is the bandwidth value of the target resource pool, and the target resource pool is the resource pool for transmitting the first object or the second object.

Optionally, the SL reference signal is a SL positioning reference signal or a SL channel state information reference signal.

The resource indication device 1000 on the SL in the embodiment of the present application may be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or a chip. The electronic device may be a terminal, or may be other devices other than a terminal. For example, the terminal may include but is not limited to the types of the terminal 11 listed above, and other devices may be servers, network attached storage (NAS), etc., which are not specifically limited in the embodiment of the present application.

The resource indication device 1000 on the SL provided in the embodiment of the present application can implement the various processes implemented in the method embodiments of Figures 2 to 7 and achieve the same technical effect. To avoid repetition, it will not be repeated here.

As shown in Figure 11, it is a structural diagram of a resource indication device 1100 on SL provided in one embodiment of the present application. The device 1100 includes: a sending module 1110, which is used for a network device to send target information; wherein, the target information is used to indicate the transmission resources of the target object, and the target information includes at least one of downlink control information DCI and high-level information.

Optionally, the resource indication device 1100 on the SL also includes a processing module, which is used to generate the target information according to the terminal positioning or beam training requirements on the SL.

Optionally, the target object includes at least one of a second-level SCI, a first physical sub-link shared channel PSSCH, a second PSSCH, a third PSSCH, and an SL reference signal, and the content carried by the first PSSCH includes the content carried by the second PSSCH or the content carried by the third PSSCH.

The resource indication device 1100 on the SL in the embodiment of the present application may be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or a chip. The electronic device may be a network-side device, or may be other devices other than a terminal. Exemplarily, the network-side device may include but is not limited to the types of network-side devices 12 listed above, and other devices may be servers, network attached storage (NAS), etc., which are not specifically limited in the embodiment of the present application.

The resource indication device 1100 on the SL provided in the embodiment of the present application can implement each process implemented in the method embodiment of Figure 9 and achieve the same technical effect. To avoid repetition, it will not be repeated here.

As shown in FIG12 , the embodiment of the present application further provides a communication device 1200, including a processor 1201 and a memory 1202, wherein the memory 1202 stores a program or instruction that can be run on the processor 1201. For example, when the communication device 1200 is a terminal, the program or instruction is executed by the processor 1201 to implement the various steps of the above method embodiments 200-700, and can achieve the same technical effect. When the communication device 1200 is a network side device, the program or instruction is executed by the processor 1201 to implement the various steps of the above method embodiment 900, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

The embodiment of the present application also provides a terminal, including a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the steps in the method embodiment shown in Figures 2 to 7. This terminal embodiment corresponds to the above-mentioned terminal side method embodiment, and each implementation process and implementation method of the above-mentioned method embodiment can be applied to the terminal embodiment and can achieve the same technical effect. Specifically, Figure 13 is a schematic diagram of the hardware structure of a terminal implementing an embodiment of the present application.

The terminal 1300 includes but is not limited to: a radio frequency unit 1301, a network module 1302, an audio output unit 1303, an input unit 1304, a sensor 1305, a display unit 1306, a user input unit 1307, an interface unit 1308, a memory 1309 and at least some of the components of a processor 1310.

Those skilled in the art will appreciate that the terminal 1300 may also include a power source (such as a battery) for supplying power to each component, and the power source may be logically connected to the processor 1310 through a power management system, so as to implement functions such as charging, discharging, and power consumption management through the power management system. The terminal structure shown in FIG13 does not constitute a limitation on the terminal, and the terminal may include more or fewer components than shown in the figure, or combine certain components, or arrange components differently, which will not be described in detail here.

It should be understood that in the embodiment of the present application, the input unit 1304 may include a graphics processing unit (GPU) 13041 and a microphone 13042, and the graphics processor 13041 processes the image data of the static picture or video obtained by the image capture device (such as a camera) in the video capture mode or the image capture mode. The display unit 1306 may include a display panel 13061, and the display panel 13061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 1307 includes a touch panel 13071 and at least one of other input devices 13072. The touch panel 13071 is also called a touch screen. The touch panel 13071 may include two parts, a touch detection device and a touch controller. Other input devices 13072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which will not be repeated here.

In the embodiment of the present application, after receiving downlink data from the network side device, the RF unit 1301 can transmit the data to the processor 1310 for processing; in addition, the RF unit 1301 can send uplink data to the network side device. Generally, the RF unit 1301 includes but is not limited to an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.

The memory 1309 can be used to store software programs or instructions and various data. The memory 1309 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, an application program or instruction required for at least one function (such as a sound playback function, an image playback function, etc.), etc. In addition, the memory 1309 may include a volatile memory or a non-volatile memory. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), a static random access memory (SRAM), a dynamic random access memory (DRAM), a synchronous dynamic random access memory (SDRAM), a double data rate synchronous dynamic random access memory (DDRSDRAM), an enhanced synchronous dynamic random access memory (ESDRAM), a synchronous link dynamic random access memory (SLDRAM) and a direct memory bus random access memory (DRRAM). The memory 1309 in the embodiment of the present application includes but is not limited to these and any other suitable types of memory.

The processor 1310 may include one or more processing units; optionally, the processor 1310 integrates an application processor and a modem processor, wherein the application processor mainly processes operations related to an operating system, a user interface, and application programs, and the modem processor mainly processes wireless communication signals, such as a baseband processor. It is understandable that the modem processor may not be integrated into the processor 1310.

Among them, the radio frequency unit 1301 is used to transmit target information; wherein the target information is used to indicate the transmission resources of the target object, and the target information includes at least one of downlink control information DCI, side link control information SCI, and high-level information.

Optionally, the target object includes at least one of a second-level SCI, a first physical sub-link shared channel PSSCH, a second PSSCH, a third PSSCH, and an SL reference signal, and the content carried by the first PSSCH includes the content carried by the second PSSCH or the content carried by the third PSSCH.

Optionally, the target information includes SCI, the SCI includes first-level SCI and/or second-level SCI; the first-level SCI includes frequency domain resource information of the first object or the second object, and the second-level SCI includes frequency domain resource information of the second object; the first object includes at least one of the second-level SCI, the first PSSCH, and the second PSSCH, and the second object includes at least one of the SL reference signal and the third PSSCH.

Optionally, the frequency domain resource information of the first object includes at least one of the following: an offset value of the frequency domain position of the first object relative to the frequency domain position of the first-level SCI; the frequency domain position of the first object; the frequency domain resource size of the first object; and/or, the frequency domain resource information of the second object includes at least one of the following: an offset value of the frequency domain position of the second object relative to the frequency domain position of the first SCI; an offset value of the frequency domain position of the second object relative to the frequency domain position of the second-level SCI; the frequency domain position of the second object; the frequency domain resource size of the second object; the frequency domain position of the second object.

Optionally, the frequency domain starting position or ending position of the first object is determined according to a first reference position; wherein the first reference position includes at least one of the following: a frequency domain resource position corresponding to a predefined, preconfigured or configured subchannel in a resource pool; a frequency domain resource position corresponding to a predefined, preconfigured or configured physical resource block in a resource pool; a frequency domain resource position corresponding to a predefined, preconfigured or configured physical resource block PRB in a bandwidth part BWP; a frequency domain resource position corresponding to the lowest PRB or the highest PRB or the predefined PRB or the preconfigured PRB or the configured PRB in the largest subchannel in the resource pool; a frequency domain resource position corresponding to the maximum PRB in the BWP Frequency domain resource position; and/or, the frequency domain starting position or ending position of the second object is determined according to a second reference position, wherein the second reference position includes at least one of the following: a frequency domain resource position corresponding to a subchannel predefined or preconfigured or configured in a resource pool; a frequency domain resource position corresponding to a PRB predefined or preconfigured or configured in a resource pool; a frequency domain resource position corresponding to a PRB predefined or preconfigured or configured in a BWP; a frequency domain resource position corresponding to a lowest PRB or a highest PRB in a maximum subchannel in a resource pool; a frequency domain resource position corresponding to a maximum PRB in a BWP; wherein the resource pool and the BWP are related to the target object.

Optionally, the frequency domain resource information of the first object includes a frequency domain resource size, and the frequency domain resource size of the first object satisfies at least one of the following: the frequency domain resource size of the first object is predefined by the protocol; the frequency domain resource size of the first object is preconfigured by the network; the frequency domain resource size of the first object is configured by the network; the frequency domain resource size of the first object is configured by the terminal; the frequency domain resource size of the first object is equal to the frequency domain resource size of the PSCCH, and the PSCCH is related to the target information; the frequency domain resource size of the first object is equal to the frequency domain resource size of the SL reference signal; the frequency domain resource size of the first object is equal to the frequency domain resource size of the resource pool; And/or; The frequency domain resource information of the second object includes the frequency domain resource size, and the frequency domain resource size of the second object satisfies at least one of the following: the frequency domain resource size of the second object is predefined by the protocol; the frequency domain resource size of the second object is preconfigured by the network; the frequency domain resource size of the second object is configured by the network; the frequency domain resource size of the second object is configured by the terminal; the frequency domain resource size of the second object is equal to the size of the frequency domain resources of the first level SCI or the second level SCI; the frequency domain resource size of the second object is equal to the size of the frequency domain resources of the second PSSCH; the frequency domain resource size of the second object is equal to the frequency domain resource size of the resource pool.

Optionally, the frequency domain resource granularity corresponding to the frequency domain resource information includes M PRBs or M subchannels; wherein, the M is determined according to at least one of the following: parameters predefined by the protocol; parameters configured by the network; parameters configured by the terminal; a frequency domain resource scheduling unit of the PSCCH, wherein the PSCCH is related to the target information; a frequency domain resource scheduling unit of the first PSSCH; a frequency domain resource scheduling unit of the SL reference signal; the frequency domain resource granularity indicated in the first-level SCI; the frequency domain resource granularity indicated in the second-level SCI; the frequency domain resource granularity indicated in the DCI; and the bandwidth size of the resource pool.

Optionally, the processor 1310 is further configured to determine, if the target information satisfies a first condition, a transmission resource of the target object according to the target information; wherein the first condition includes at least one of the following:

The target information includes the first-level SCI, and the format of the second-level SCI indicated in the first-level SCI is a specific format; the target information includes the first-level SCI, and the reserved bit reservedbit in the first-level SCI is used to indicate the positioning of the UE; the target information includes the first-level SCI, and the reservedbit in the first-level SCI indicates that the second-level SCI is used to position the UE; the target information includes the first-level SCI, and the reservedbit in the first-level SCI indicates that the second-level SCI is in a specific format; wherein the second-level SCI in the specific format includes frequency domain resource information of the second object.

Optionally, at least one of the following is satisfied: the first-level SCI is the SCI on the first time domain unit, or the first-level SCI is the SCI in the first candidate resource on the first time domain unit; the first object is the information on the second time domain unit reserved for the SCI on the first time domain unit, or the first object is the information in the second candidate resource in the second time domain unit reserved for the SCI on the first time domain unit; the second-level SCI is the SCI on the third time domain unit, or the second-level SCI is the SCI in the second candidate resource on the third time domain unit; the second object is the information in the fourth time domain unit reserved for the SCI in the third time domain unit, or the second object is the information in the second candidate resource in the fourth time domain unit reserved for the SCI on the third time domain unit; wherein the first candidate resources include candidate frequency domain resources and/or candidate time domain resources, and the second candidate resources include candidate frequency domain resources and/or candidate time domain resources.

Optionally, the processor 1310 is further configured to determine a transmission resource of a target object in the first resource pool according to resource indication information carried by the target information.

Optionally, the processor 1310 determines the transmission resources of the target object in the first resource pool based on the resource indication information carried by the target information, including: determining the transmission resources of the target object in the first resource pool based on the reference resources and the resource indication information carried by the target information, the reference resources including reference time domain resources and/or reference frequency domain resources.

Optionally, the reference frequency domain resources include at least one of the following: reference frequency domain resources predefined by the protocol; reference frequency domain resources configured by the network; reference frequency domain resources indicated by the DCI; reference frequency domain resources indicated by the SCI; PRBs predefined or preconfigured or configured in the first resource pool; PRBs predefined or preconfigured or configured in a subchannel predefined or preconfigured or configured in the first resource pool; preset PRBs in a second resource pool or preset PRBs in a preset subchannel, the second resource pool being related to the SCI; frequency domain resource reference point A; the lowest PRB or the highest PRB or the preset PRB in a BWP, the BWP being related to the target object.

Optionally, the preset PRB in the second resource pool or the preset PRB in the preset subchannel includes at least one of the following: the lowest PRB in the second resource pool; the lowest PRB in the lowest subchannel in the second resource pool; the lowest PRB or the highest PRB in the SCI frequency domain resources in the second resource pool; the lowest PRB or the highest PRB in the subchannel where the SCI is located in the second resource pool; the lowest PRB in the lowest subchannel where the SCI is located in the second resource pool; the highest PRB in the highest subchannel where the SCI is located in the second resource pool.

Optionally, the reference time domain resources include at least one of the following: reference time domain resources predefined by the protocol; reference time domain resources configured by the network; reference time domain resources indicated by the DCI; reference time domain resources indicated by the SCI; the time domain resource position of the second object in the first resource pool; the time domain resource position of the SCI in the second resource pool, the second resource pool being related to the SCI; the time domain resource position of the DCI; reference direct frame number DFN; preset DFN in the first resource pool; preset DFN in the second resource pool.

Optionally, the resource indication information includes time domain indication information, and the time domain indication information includes a time domain resource unit offset between the SCI and the target object, wherein the target object includes the SL reference signal and/or the first PSSCH.

Optionally, the size and/or position of the candidate resource set of the SCI is related to a third object, and the third object includes at least one of terminal capability information, priority of the SL reference signal, and quality of service of the SL reference signal.

Optionally, the processor 1310 is also used to: determine the delay limit of the target object based on at least one of the following: a delay limit predefined by the protocol; a delay limit configured by the network; a delay limit configured by the terminal; a first time; wherein the first time is determined based on at least one of the following: the time domain unit where the SCI is located; the time domain position where the SL reference signal is located; the time domain unit corresponding to the first resource pool; the time domain unit corresponding to the second resource pool.

Optionally, the high-level information is also used to indicate or configure at least one of the following: a repetition transmission parameter; a period parameter; a priority parameter; and a resource pool request for the SL reference signal transmission.

Optionally, the target information includes SCI, and the processor 1310 is further used to determine the transmission resource of the target object based on at least one of the frequency domain resource position of the SCI, the time domain resource position of the SCI, and the index of the SCI.

Optionally, the target object includes the SL reference signal, and the transmission resources of the SL reference signal include at least one of a time domain resource starting position, a time domain resource ending position, a frequency domain resource starting position, a frequency domain resource ending position, a bandwidth, a frequency domain resource offset value, and an index.

Optionally, the processor 1310 determines the transmission resources of the target object according to the frequency domain resource position of the SCI, including at least one of the following: determining the frequency domain resource starting position and/or the frequency domain resource ending position of the SL reference signal according to the frequency domain resource position and comb size of the SCI; determining the frequency domain resource offset value of the SL reference signal according to the frequency domain resource position, comb size, and time domain resource candidate values of the SCI; determining the frequency domain resource starting position and/or the ending position of the SL reference signal according to the frequency domain resource position, comb size, and time domain resource candidate values of the SCI; determining the frequency domain resource offset value of the SL reference signal according to the frequency domain resource position, comb size, and time domain resource candidate values of the SCI; determining the time domain resource starting position and/or the time domain resource ending position of the SL reference signal according to the frequency domain resource position, comb size, and time domain resource candidate values of the SCI; determining the index of the SL reference signal according to the frequency domain resource position of the SCI.

Optionally, the transmission resources of the SL reference signal include bandwidth, and the bandwidth satisfies at least one of the following: the bandwidth is L*2 ^x , L is the unit bandwidth value, and x is an integer greater than or equal to 0; the maximum value of the bandwidth is the bandwidth value of the target resource pool, and the target resource pool is the resource pool for transmitting the first object or the second object.

Optionally, the SL reference signal is a SL positioning reference signal or a SL channel state information reference signal.

It can be understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant description of method embodiments 200-700, and achieve the same or corresponding technical effects. To avoid repetition, it will not be repeated here.

The embodiment of the present application also provides a network side device, including a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the steps of the method embodiment shown in Figure 9. The network side device embodiment corresponds to the above network side device method embodiment, and each implementation process and implementation method of the above method embodiment can be applied to the network side device embodiment, and can achieve the same technical effect.

Specifically, the embodiment of the present application also provides a network side device. As shown in Figure 14, the network side device 1400 includes: an antenna 1401, a radio frequency device 1402, a baseband device 1403, a processor 1404 and a memory 1405. The antenna 1401 is connected to the radio frequency device 1402. In the uplink direction, the radio frequency device 1402 receives information through the antenna 1401 and sends the received information to the baseband device 1403 for processing. In the downlink direction, the baseband device 1403 processes the information to be sent and sends it to the radio frequency device 1402. The radio frequency device 1402 processes the received information and sends it out through the antenna 1401.

The method executed by the network-side device in the above embodiment may be implemented in the baseband device 1403, which includes a baseband processor.

The baseband device 1403 may include, for example, at least one baseband board, on which multiple chips are arranged, as shown in Figure 14, one of which is, for example, a baseband processor, which is connected to the memory 1405 through a bus interface to call the program in the memory 1405 and execute the network device operations shown in the above method embodiment.

The network side device may further include a network interface 1406, which is, for example, a Common Public Radio Interface (CPRI).

Specifically, the network side device 1400 of the embodiment of the present invention also includes: instructions or programs stored in the memory 1405 and executable on the processor 1404. The processor 1404 calls the instructions or programs in the memory 1405 to execute the methods executed by the modules shown in Figure 11 and achieve the same technical effect. To avoid repetition, it will not be repeated here.

An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, each process of the resource indication method embodiment on the above-mentioned SL is implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

The processor is the processor in the terminal described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a computer read-only memory ROM, a random access memory RAM, a magnetic disk or an optical disk. In some examples, the readable storage medium may be a non-transient readable storage medium.

An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the various processes of the resource indication method embodiment on the above-mentioned SL, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

The embodiment of the present application further provides a computer program/program product, which is stored in a storage medium. The computer program/program product is executed by at least one processor to implement the various processes of the resource indication method embodiment on the above-mentioned SL, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

An embodiment of the present application also provides a communication system, including: a terminal and a network side device, wherein the terminal can be used to execute the various processes of the resource indication method embodiments 200-700 on the SL as described above, and the network side device can be used to execute the various processes of the resource indication method embodiment 900 on the SL as described above, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises one..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the method and device in the embodiment of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted or combined. In addition, the features described with reference to certain examples may be combined in other examples.

Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of a computer software product plus a necessary general hardware platform, and of course, can also be implemented by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, disk, CD, etc.), including several instructions to enable a terminal or a network-side device to execute the methods described in each embodiment of the present application.

The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms of implementation methods without departing from the purpose of the present application and the scope of protection of the claims, and these implementation methods are all within the protection of the present application.

Claims (40)

1. A method for indicating resources on a secondary link SL, comprising: The first terminal transmits target information; The target information is used to indicate the transmission resources of the target object, and the target information includes at least one of downlink control information DCI, sublink control information SCI, and high-layer information. 2. The method as claimed in claim 1 is characterized in that the target object includes at least one of a second-level SCI, a first physical sub-link shared channel PSSCH, a second PSSCH, a third PSSCH, and an SL reference signal, and the content carried by the first PSSCH includes the content carried by the second PSSCH or the content carried by the third PSSCH. 3. The method according to claim 2, characterized in that the target information includes SCI, and the SCI includes first-level SCI and/or second-level SCI; The first-level SCI includes frequency domain resource information of the first object or the second object, and the second-level SCI includes frequency domain resource information of the second object; The first object includes at least one of the second-level SCI, the first PSSCH, and the second PSSCH, and the second object includes at least one of the SL reference signal and the third PSSCH. 4. The method according to claim 3, wherein the frequency domain resource information of the first object comprises at least one of the following: an offset value of the frequency domain position of the first object relative to the frequency domain position of the first level SCI; The frequency domain position of the first object; The frequency domain resource size of the first object; and/or, The frequency domain resource information of the second object includes at least one of the following: An offset value of the frequency domain position of the second object relative to the frequency domain position of the first SCI; an offset value of the frequency domain position of the second object relative to the frequency domain position of the second-level SCI; A frequency domain resource size of the second object; The frequency domain position of the second object. 5. The method according to claim 4, wherein the frequency domain position of the first object is determined according to a first reference position; wherein the first reference position comprises at least one of the following: The frequency domain resource position corresponding to the predefined or preconfigured or configured subchannel in the resource pool; The frequency domain resource position corresponding to the predefined or preconfigured or configured physical resource block PRB in the resource pool; The frequency domain resource locations corresponding to the predefined or preconfigured or configured PRBs in the bandwidth part BWP; The frequency domain resource position corresponding to the lowest PRB or the highest PRB or the predefined PRB or the preconfigured PRB or the configured PRB in the largest subchannel in the resource pool; The frequency domain resource position corresponding to the maximum PRB in the BWP; and/or, The frequency domain position of the second object is determined according to a second reference position, wherein the second reference position includes at least one of the following: The frequency domain resource position corresponding to the subchannel predefined or preconfigured or configured in the resource pool; The frequency domain resource location corresponding to the predefined or preconfigured or configured PRB in the resource pool; The frequency domain resource locations corresponding to the PRBs predefined or preconfigured or configured in the BWP; The frequency domain resource position corresponding to the lowest PRB or the highest PRB in the largest subchannel in the resource pool; The frequency domain resource position corresponding to the maximum PRB in the BWP; The resource pool and the BWP are related to the target object. 6. The method according to claim 4, wherein the frequency domain resource size of the first object satisfies at least one of the following: The frequency domain resource size of the first object is predefined by the protocol; The frequency domain resource size of the first object is preconfigured by the network; The frequency domain resource size of the first object is configured by the network; The frequency domain resource size of the first object is configured by the terminal; The frequency domain resource size of the first object is equal to the frequency domain resource size of a PSCCH, and the PSCCH is related to the target information; The frequency domain resource size of the first object is equal to the frequency domain resource size of the SL reference signal; The frequency domain resource size of the first object is equal to the frequency domain resource size of the resource pool; and/or; The frequency domain resource size of the second object satisfies at least one of the following: The frequency domain resource size of the second object is predefined by the protocol; The frequency domain resource size of the second object is preconfigured by the network; The frequency domain resource size of the second object is configured by the network; The frequency domain resource size of the second object is configured by the terminal; The frequency domain resource size of the second object is equal to the frequency domain resource size of the first level SCI or the second level SCI; The size of the frequency domain resources of the second object is equal to the size of the frequency domain resources of the second PSSCH; The frequency domain resource size of the second object is equal to the frequency domain resource size of the resource pool. 7. The method according to claim 3, characterized in that the frequency domain resource granularity corresponding to the frequency domain resource information includes M PRBs or M subchannels; Wherein, the M is determined according to at least one of the following: Parameters predefined by the protocol; Network configuration parameters; Terminal configuration parameters; A frequency domain resource scheduling unit of a PSCCH, wherein the PSCCH is related to the target information; A frequency domain resource scheduling unit for the first PSSCH; A frequency domain resource scheduling unit of the SL reference signal; The frequency domain resource granularity indicated in the first level SCI; the frequency domain resource granularity indicated in the second level SCI; The frequency domain resource granularity indicated in the DCI; The bandwidth size of the resource pool. 8. The method according to any one of claims 3 to 7, characterized in that the method further comprises: When the target information satisfies a first condition, the first terminal determines a transmission resource of the target object according to the target information; The first condition includes at least one of the following: The target information includes the first-level SCI, and the format of the second-level SCI indicated in the first-level SCI is a specific format; The target information includes the first-level SCI, and a reserved bit in the first-level SCI is used to indicate a positioning UE; The target information includes the first-level SCI, and a reserved bit in the first-level SCI indicates that the second-level SCI is used to locate the UE; The target information includes the first-level SCI, and a reserved bit in the first-level SCI indicates that the second-level SCI is in a specific format; The second-level SCI in the specific format includes frequency domain resource information of the second object. 9. The method of claim 3, wherein at least one of the following is satisfied: The first-level SCI is the SCI on the first time domain unit, or the first-level SCI is the SCI in the first candidate resource on the first time domain unit; The first object is information on a second time domain unit reserved by the SCI on the first time domain unit, or the first object is information in a second candidate resource in a second time domain unit reserved by the SCI on the first time domain unit; The second-level SCI is the SCI on the third time domain unit, or the second-level SCI is the SCI in the second candidate resource on the third time domain unit; The second object is information in a fourth time domain unit reserved by SCI in the third time domain unit, or the second object is information in a second candidate resource in a fourth time domain unit reserved by SCI on the third time domain unit; The first candidate resources include candidate frequency domain resources and/or candidate time domain resources, and the second candidate resources include candidate frequency domain resources and/or candidate time domain resources. 10. The method according to any one of claims 1 to 9, characterized in that the method further comprises: The first terminal determines the transmission resource of the target object in the first resource pool according to the resource indication information carried by the target information. 11. The method according to claim 10, wherein determining the transmission resource of the target object in the first resource pool according to the resource indication information carried by the target information comprises: The transmission resource of the target object in the first resource pool is determined according to the reference resource and the resource indication information carried by the target information, wherein the reference resource includes a reference time domain resource and/or a reference frequency domain resource. 12. The method according to claim 11, wherein the reference frequency domain resource comprises at least one of the following: Reference frequency domain resources predefined by the protocol; Reference frequency domain resources for network configuration; The reference frequency domain resource indicated by the DCI; The reference frequency domain resources indicated by the SCI; predefined or preconfigured or configured PRBs in the first resource pool; a predefined or preconfigured or configured PRB in a predefined or preconfigured or configured subchannel in the first resource pool; A preset PRB in a second resource pool or a preset PRB in a preset subchannel, wherein the second resource pool is related to the SCI; Frequency domain resource reference point A; The lowest PRB or the highest PRB or the preset PRB in the BWP, and the BWP is related to the target object. 13. The method according to claim 12, wherein the preset PRB in the second resource pool or the preset PRB in the preset subchannel comprises at least one of the following: the lowest PRB in the second resource pool; the lowest PRB in the lowest subchannel in the second resource pool; The lowest PRB or the highest PRB in the SCI frequency domain resources in the second resource pool; The lowest PRB or the highest PRB in the subchannel where the SCI in the second resource pool is located; The lowest PRB in the lowest subchannel where the SCI in the second resource pool is located; The highest PRB in the highest sub-channel where the SCI in the second resource pool is located. 14. The method according to claim 11, wherein the reference time domain resource comprises at least one of the following: Reference time domain resources predefined by the protocol; Reference time domain resources for network configuration; The reference time domain resource indicated by the DCI; The reference time domain resource indicated by the SCI; A time domain resource location of the second object in the first resource pool; A time domain resource location of the SCI in a second resource pool, the second resource pool being related to the SCI; The time domain resource location of the DCI; Refer to direct frame number DFN; a preset DFN in the first resource pool; The preset DFN in the second resource pool. 15. The method as claimed in claim 11 is characterized in that the resource indication information includes time domain indication information, and the time domain indication information includes a time domain resource unit offset between the SCI and the target object, wherein the target object includes the SL reference signal and/or the first PSSCH. 16. The method as described in any one of claims 1-15 is characterized in that the size and/or position of the candidate resource set of the SCI is related to a third object, and the third object includes at least one of terminal capability information, priority of the SL reference signal, and quality of service of the SL reference signal. 17. The method according to any one of claims 1 to 15, characterized in that the method further comprises: The delay limit of the target object is determined according to at least one of the following: The delay limit predefined by the protocol; Delay constraints of network configuration; Terminal configuration delay limit; First time; The first time is determined according to at least one of the following: The time domain unit where the SCI is located; The time domain position of the SL reference signal; A time domain unit corresponding to the first resource pool; The time domain unit corresponding to the second resource pool. 18. The method according to claim 1, wherein the high-level information is further used to indicate or configure at least one of the following: Repeat the transmission parameters; Cycle parameters; Priority parameter; The SL references the resource pool request transmitted by the signal. 19. The method according to claim 1, wherein the target information includes SCI, and the method further comprises: The transmission resource of the target object is determined according to at least one of the frequency domain resource position of the SCI, the time domain resource position of the SCI, and the index of the SCI. 20. The method as claimed in claim 19 is characterized in that the target object includes the SL reference signal, and the transmission resources of the SL reference signal include at least one of a time domain resource starting position, a time domain resource ending position, a frequency domain resource starting position, a frequency domain resource ending position, a bandwidth, a frequency domain resource offset value, and an index. 21. The method of claim 20, wherein determining the transmission resource of the target object according to the frequency domain resource position of the SCI comprises at least one of the following: Determine the frequency domain resource start position and/or frequency domain resource end position of the SL reference signal according to the frequency domain resource position and comb size of the SCI; Determine a frequency domain resource offset value of the SL reference signal according to the frequency domain resource position and comb size of the SCI; Determine the frequency domain resource starting position and/or ending position of the SL reference signal according to the frequency domain resource position, comb size, and time domain resource candidate value of the SCI; Determine the frequency domain resource offset value of the SL reference signal according to the frequency domain resource position, comb size, and time domain resource candidate value of the SCI; Determine the time domain resource start position and/or time domain resource end position of the SL reference signal according to the frequency domain resource position, comb size, and time domain resource candidate value of the SCI; The index of the SL reference signal is determined according to the frequency domain resource position of the SCI. 22. The method according to any one of claims 1 to 21, wherein the transmission resource of the SL reference signal includes a bandwidth, and the bandwidth satisfies at least one of the following: The bandwidth is L*2 ^x , where L is a unit bandwidth value and x is an integer greater than or equal to 0; The maximum value of the bandwidth is a bandwidth value of a target resource pool, and the target resource pool is a resource pool for transmitting the first object or the second object. 23. The method according to any one of claims 1-21, characterized in that the SL reference signal is a SL positioning reference signal or a SL channel state information reference signal. 24. A method for indicating resources on a secondary link SL, comprising: The network side device sends the target information; The target information is used to indicate the transmission resources of the target object, and the target information includes at least one of downlink control information DCI and high-layer information. 25. The method as claimed in claim 24 is characterized in that the target object includes at least one of a second-level SCI, a first physical sub-link shared channel PSSCH, a second PSSCH, a third PSSCH, and an SL reference signal, and the content carried by the first PSSCH includes the content carried by the second PSSCH or the content carried by the third PSSCH. 26. A resource indication device on a secondary link SL, characterized by comprising: A transmission device, used for transmitting target information; The target information is used to indicate the transmission resources of the target object, and the target information includes at least one of downlink control information DCI, sublink control information SCI, and high-layer information. 27. The device as described in claim 26 is characterized in that the target object includes at least one of a second-level SCI, a first physical sub-link shared channel PSSCH, a second PSSCH, a third PSSCH, and an SL reference signal, and the content carried by the first PSSCH includes the content carried by the second PSSCH or the content carried by the third PSSCH. 28. The apparatus according to claim 27, wherein the target information comprises SCI, and the SCI comprises first-level SCI and/or second-level SCI; The first-level SCI includes frequency domain resource information of the first object or the second object, and the second-level SCI includes frequency domain resource information of the second object; The first object includes at least one of the second-level SCI, the first PSSCH, and the second PSSCH, and the second object includes at least one of the SL reference signal and the third PSSCH. 29. The apparatus according to claim 3, wherein the frequency domain resource information of the first object comprises at least one of the following: an offset value of the frequency domain position of the first object relative to the frequency domain position of the first level SCI; The frequency domain position of the first object; The frequency domain resource size of the first object; and/or, The frequency domain resource information of the second object includes at least one of the following: An offset value of the frequency domain position of the second object relative to the frequency domain position of the first SCI; an offset value of the frequency domain position of the second object relative to the frequency domain position of the second-level SCI; A frequency domain resource size of the second object; The frequency domain position of the second object. 30. The device of claim 28, further comprising: A first determining module, configured to determine a transmission resource of a target object according to the target information if the target information satisfies a first condition; The first condition includes at least one of the following: The target information includes the first-level SCI, and the format of the second-level SCI indicated in the first-level SCI is a specific format; The target information includes the first-level SCI, and a reserved bit in the first-level SCI is used to indicate a positioning UE; The target information includes the first-level SCI, and a reserved bit in the first-level SCI indicates that the second-level SCI is used to locate the UE; The target information includes the first-level SCI, and a reserved bit in the first-level SCI indicates that the second-level SCI is in a specific format; The second-level SCI in the specific format includes frequency domain resource information of the second object. 31. The device of claim 26, further comprising: The second determining module is used to determine the transmission resource of the target object in the first resource pool according to the resource indication information carried by the target information. 32. The device according to claim 31, wherein the second determining module determines the transmission resource of the target object in the first resource pool according to the resource indication information carried by the target information, comprising: The transmission resource of the target object in the first resource pool is determined according to the reference resource and the resource indication information carried by the target information, wherein the reference resource includes a reference time domain resource and/or a reference frequency domain resource. 33. The apparatus of claim 26, wherein the target information comprises SCI, and the apparatus further comprises: The third determination module is used to determine the transmission resource of the target object according to at least one of the frequency domain resource position of the SCI, the time domain resource position of the SCI, and the index of the SCI. 34. The device as described in claim 33 is characterized in that the target object includes the SL reference signal, and the transmission resources of the SL reference signal include at least one of a time domain resource starting position, a time domain resource ending position, a frequency domain resource starting position, a frequency domain resource ending position, a bandwidth, a frequency domain resource offset value, and an index. 35. The apparatus of claim 34, wherein the third determining module determines the transmission resource of the target object according to the frequency domain resource position of the SCI, comprising at least one of the following: Determine the frequency domain resource start position and/or frequency domain resource end position of the SL reference signal according to the frequency domain resource position and comb size of the SCI; Determine a frequency domain resource offset value of the SL reference signal according to the frequency domain resource position and comb size of the SCI; Determine the frequency domain resource starting position and/or ending position of the SL reference signal according to the frequency domain resource position, comb size, and time domain resource candidate value of the SCI; Determine the frequency domain resource offset value of the SL reference signal according to the frequency domain resource position, comb size, and time domain resource candidate value of the SCI; Determine the time domain resource start position and/or time domain resource end position of the SL reference signal according to the frequency domain resource position, comb size, and time domain resource candidate value of the SCI; The index of the SL reference signal is determined according to the frequency domain resource position of the SCI. 36. A resource indication device on a secondary link SL, characterized by comprising: A sending module, used for a network device to send target information; The target information is used to indicate the transmission resources of the target object, and the target information includes at least one of downlink control information DCI and high-layer information. 37. The device as described in claim 36 is characterized in that the target object includes at least one of a second-level SCI, a first physical sub-link shared channel PSSCH, a second PSSCH, a third PSSCH, and an SL reference signal, and the content carried by the first PSSCH includes the content carried by the second PSSCH or the content carried by the third PSSCH. 38. A terminal, characterized in that it comprises a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the method according to any one of claims 1 to 23 are implemented. 39. A network side device, characterized in that it comprises a processor and a memory, wherein the memory stores programs or instructions that can be run on the processor, and when the program or instructions are executed by the processor, the steps of the method described in any one of claims 24 to 25 are implemented. 40. A readable storage medium, characterized in that a program or instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, it implements the method according to any one of claims 1 to 23, or implements the steps of the method according to any one of claims 24 to 25.