CN111615085B

CN111615085B - Resource acquisition method, first terminal and second terminal

Info

Publication number: CN111615085B
Application number: CN201910516585.5A
Authority: CN
Inventors: 梁敬; 杨晓东; 彭淑燕; 郑倩
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2019-06-14
Filing date: 2019-06-14
Publication date: 2021-08-27
Anticipated expiration: 2039-06-14
Also published as: CN111615085A; WO2020249095A1

Abstract

The invention provides a resource acquisition method, a first terminal and a second terminal, wherein the method corresponding to the first terminal comprises the following steps: in the case that the first terminal does not obtain the secondary link resource used by the second terminal to transmit the secondary link feedback information, performing at least one of: transmitting a Radio Resource Control (RRC) connection establishment request or an RRC connection recovery request to the communication device; a sidelink resource request is sent to a communication device. In the invention, when the terminal needs to send the secondary link feedback information but does not obtain the secondary link resource used for sending the secondary link feedback information, the terminal can obtain the corresponding secondary link resource by triggering an RRC connection establishment request or an RRC connection recovery request or sending a secondary link resource request. Therefore, after the corresponding sidelink resource is obtained, the sidelink feedback information can be sent, and the sidelink transmission performance is improved.

Description

Resource acquisition method, first terminal and second terminal

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a resource acquisition method, a first terminal, and a second terminal.

Background

A Long Term Evolution (Long Term Evolution, LTE for short) system starts to support a sidelink (or called a sidelink, or a side link, etc.) for performing direct data transmission between a terminal and the terminal, and is suitable for specific public security affairs or Vehicle to internet (V2X for short) communication, etc. LTE sidelink transmission is based on broadcast, and no feedback mechanism exists between terminals. The sidelink transmission of the 5G NR (New Radio, New air interface) may introduce a unicast and multicast transmission mode, and when performing unicast service and multicast service transmission, a terminal may be required to send feedback information. However, the relevant configuration information of the sidelink may not include resources for sending the feedback information, which may result in that the terminal cannot send the feedback information, thereby causing poor transmission performance of the sidelink.

Disclosure of Invention

The embodiment of the invention provides a resource acquisition method, a first terminal and a second terminal, which aim to solve the problem of poor sidelink transmission performance caused by the fact that the terminal cannot send feedback information.

In order to solve the technical problem, the invention is realized as follows:

in a first aspect, an embodiment of the present invention provides a resource obtaining method, where the method includes:

in the case that a first terminal does not obtain a sidelink resource used by a second terminal to transmit sidelink feedback information, the first terminal performs at least one of:

transmitting a Radio Resource Control (RRC) connection establishment request or an RRC connection recovery request to the communication device;

sending a sidelink resource request to the communication device;

wherein the secondary link resource request is for requesting secondary link resources for transmitting the secondary link feedback information.

In a second aspect, an embodiment of the present invention provides a resource obtaining method, where the method includes:

in case the second terminal does not obtain its secondary link resources to use for transmitting secondary link feedback information, the second terminal performs at least one of:

sending a sidelink resource request to the communication device;

In a third aspect, an embodiment of the present invention provides a first terminal, including:

a sending module, configured to, in a case that the first terminal does not obtain a sidelink resource used by the second terminal to send the sidelink feedback information, perform at least one of:

sending a sidelink resource request to the communication device;

In a fourth aspect, an embodiment of the present invention provides a second terminal, including:

a sending module, configured to, in a case that the second terminal does not obtain the sidelink resource that it uses to send the sidelink feedback information, perform at least one of the following:

sending a sidelink resource request to the communication device;

In a fifth aspect, an embodiment of the present invention provides another first terminal, including: the resource acquisition method comprises a memory, a processor and a computer program stored on the memory and capable of running on the processor, wherein when the computer program is executed by the processor, the steps in the resource acquisition method provided by the first aspect of the embodiment of the invention are realized.

In a sixth aspect, an embodiment of the present invention provides another second terminal, including: the resource acquisition method comprises a memory, a processor and a computer program stored on the memory and capable of running on the processor, wherein the computer program realizes the steps in the resource acquisition method provided by the second aspect of the embodiment of the invention when being executed by the processor.

In a seventh aspect, an embodiment of the present invention provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements the steps in the resource obtaining method provided in the first aspect of the embodiment of the present invention.

In an eighth aspect, an embodiment of the present invention provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements the steps in the resource obtaining method provided in the second aspect of the embodiment of the present invention.

In the embodiment of the invention, when the terminal needs to send the secondary link feedback information but does not obtain the secondary link resource used for sending the secondary link feedback information, the sending terminal of the secondary link feedback information or the receiving terminal of the secondary link feedback information can obtain the corresponding secondary link resource by triggering the RRC connection establishment request or the RRC connection recovery request or sending the secondary link resource request. Therefore, after the corresponding sidelink resource is obtained, the sidelink feedback information can be sent, and the sidelink transmission performance is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a system diagram of a resource acquisition system according to an embodiment of the present invention;

FIG. 2 is a system diagram of another resource acquisition system according to an embodiment of the present invention;

fig. 3 is a flowchart of a resource obtaining method according to an embodiment of the present invention;

fig. 4 is a flowchart of another resource acquisition method provided in the embodiment of the present invention;

fig. 5 is one of the structural diagrams of the first terminal according to the embodiment of the present invention;

fig. 6 is a second structural diagram of the first terminal according to the embodiment of the present invention;

fig. 7 is a third structural diagram of the first terminal according to the embodiment of the present invention;

fig. 8 is one of the structural diagrams of the second terminal provided in the embodiment of the present invention;

fig. 9 is a second structural diagram of a second terminal according to an embodiment of the present invention;

fig. 10 is a third structural diagram of a second terminal according to an embodiment of the present invention;

fig. 11 is a hardware configuration diagram of a first terminal according to an embodiment of the present invention;

fig. 12 is a hardware configuration diagram of the second terminal according to the embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The terms "comprises," "comprising," or any other variation thereof, in the description and claims of this application, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. Furthermore, the use of "and/or" in the specification and claims means that at least one of the connected objects, such as a and/or B, means that three cases, a alone, B alone, and both a and B, exist.

In the embodiments of the present invention, words such as "exemplary" or "for example" are used to mean serving as examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "e.g.," an embodiment of the present invention is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.

Embodiments of the present invention are described below with reference to the accompanying drawings. The resource acquisition method provided by the embodiment of the invention can be applied to a wireless communication system. The wireless communication system may be a 5G system, or an Evolved Long Term Evolution (lte) system, or a subsequent Evolved communication system.

Fig. 1 is a structural diagram of a resource acquisition system according to an embodiment of the present invention, and as shown in fig. 1, the resource acquisition system includes a first terminal 11 and a communication device 12. The first terminal 11 may perform a sidelink transmission with another terminal (which may be referred to as a "second terminal", not shown in the figure), the first terminal 11 is a sending terminal of the sidelink transmission, the second terminal is a receiving terminal of the sidelink transmission, and the second terminal may send the sidelink feedback information, for example, the second terminal may send the sidelink feedback information to the first terminal 11. The communication device 12 may be a network-side device or a third terminal, and the first terminal 11 may communicate with the communication device 12, for example, when the communication device 12 is a network-side device, the first terminal 11 may send an RRC (Radio Resource Control) connection establishment request or an RRC connection recovery request to the communication device 12, or may send a sidelink Resource request to the communication device 12; for example, when the communication device 12 is a third terminal, the first terminal 11 may send a sidelink resource request to the communication device 12.

The terminal may be a mobile communication device, for example: the Mobile phone may be a Mobile phone, a Tablet Personal Computer (Tablet Personal Computer), a Laptop Computer (Laptop Computer), a Personal Digital Assistant (PDA), a Mobile Internet Device (MID), a Wearable Device (Wearable Device), or the like. The network side device may be a 5G network side device (e.g., a gNB, a 5G NR NB), or may be a 4G network side device (e.g., an eNB), or may be a 3G network side device (e.g., an NB), or a network side device in a subsequent evolved communication system, and so on.

The embodiment of the invention provides a resource acquisition method applied to a resource acquisition system shown in fig. 1, which comprises the following steps:

sending a sidelink resource request to the communication device;

In the embodiment of the present invention, when the second terminal needs to send the sidelink feedback information but the first terminal does not obtain the sidelink resource used by the second terminal to send the sidelink feedback information, the first terminal may obtain the corresponding sidelink resource by triggering an RRC connection establishment request or an RRC connection recovery request, or by sending an sidelink resource request. In this way, after the first terminal acquires the corresponding sidelink resource, the corresponding sidelink resource can be notified to the second terminal, so that the second terminal can use the corresponding sidelink resource to realize the sending of the sidelink feedback information, thereby improving the sidelink transmission performance.

Fig. 2 is a structural diagram of another resource acquisition system according to an embodiment of the present invention, and as shown in fig. 2, the resource acquisition system includes a second terminal 21 and a communication device 22. The second terminal 21 may perform a sidelink transmission with another terminal (may be referred to as a "first terminal", not shown in the figure), the first terminal is a sending terminal of the sidelink transmission, the second terminal 21 is a receiving terminal of the sidelink transmission, and the second terminal 21 may send the sidelink feedback information, for example, the second terminal 21 may send the sidelink feedback information to the first terminal. The communication device 22 may be a network-side device, a first terminal, or a third terminal, the second terminal 21 may communicate with the communication device 22, for example, when the communication device 22 is a network-side device, the second terminal 21 may send an RRC (Radio Resource Control) connection establishment request or an RRC connection recovery request to the communication device 22, or may send an sidelink Resource request to the communication device 22; for example, when the communication device 22 is a first terminal or a third terminal, the second terminal 21 may send a sidelink resource request to the communication device 22.

The embodiment of the invention provides a resource acquisition method applied to a resource acquisition system shown in fig. 2, which comprises the following steps:

sending a sidelink resource request to the communication device;

In the embodiment of the present invention, when the second terminal needs to send the sidelink feedback information but does not obtain the sidelink resource used for sending the sidelink feedback information, the second terminal may obtain the corresponding sidelink resource by triggering an RRC connection establishment request or an RRC connection recovery request, or by sending the sidelink resource request. In this way, after the second terminal acquires the corresponding sidelink resource, the corresponding sidelink resource can be used to realize the sending of the sidelink feedback information, thereby improving the transmission performance of the sidelink.

Fig. 3 is a flowchart of a resource obtaining method according to an embodiment of the present invention. As shown in fig. 3, the resource acquisition method includes the following steps:

step 301: in the case that a first terminal does not obtain a sidelink resource used by a second terminal to transmit sidelink feedback information, the first terminal performs at least one of:

a sidelink resource request is sent to a communication device.

In the embodiment of the present invention, the first terminal and the second terminal may be understood as two terminals performing sidelink communication, for example, the first terminal and the second terminal are two terminals performing sidelink unicast communication. The first terminal may be understood as a transmitting terminal performing sidelink communication, i.e. a terminal that needs to transmit data or is transmitting data, and the second terminal may be understood as a receiving terminal performing sidelink communication, i.e. a terminal that needs to receive data or is receiving data. Since data transmission and reception may be bidirectional, the transmitting terminal refers to a terminal that transmits data in a certain time interval, and the receiving terminal refers to a terminal that receives data of the transmitting terminal in the same time interval and needs to feed back the received data.

In the embodiment of the present invention, the sidelink feedback information may be understood as related information that needs to be sent by the second terminal for feeding back the received data in sidelink communication; the secondary link resources may be understood as resources used to transmit secondary link feedback information.

Optionally, the sidelink feedback Information includes at least one of HARQ (Hybrid Automatic Repeat reQuest) feedback Information for a sidelink and CSI (Channel State Information) feedback Information for the sidelink. Wherein the HARQ feedback information may include at least one of HARQ-ACK (Acknowledgement) and HARQ-NACK (Negative Acknowledgement).

Optionally, the secondary link resource includes at least one of a PSFCH (Physical Sidelink Feedback Channel) resource and a PSSCH (Physical Sidelink Shared Channel) resource.

If the secondary link feedback information is HARQ feedback information for the secondary link, the secondary link resources comprise PSFCH resources for sending the HARQ feedback information; if the secondary link feedback information is the CSI feedback information for the secondary link, the secondary link resource includes a PSFCH resource or a PSSCH resource that transmits the CSI feedback information. Of course, if the HARQ feedback information is transmitted on other channels, the secondary link resource is not necessarily the PSFCH resource, but is a resource used for transmitting the HARQ feedback information on other channels (e.g., a resource used for transmitting the HARQ feedback information on the psch). Alternatively, if the PSFCH resources are also used for transmitting other information, the secondary link resources here should be the resources on the PSFCH used for transmitting HARQ feedback information.

The embodiment of the invention is suitable for the sidelink communication scene that the second terminal needs to send the sidelink feedback information but the first terminal does not obtain the sidelink resource used by the second terminal to send the sidelink feedback information.

Since the second terminal needs to send the sidelink feedback information, it needs to configure or allocate sufficient sidelink resources for the second terminal to send the sidelink feedback information, otherwise, the second terminal cannot implement sending the sidelink feedback information. In some cases, the network-side device or other resource allocation formula does not configure or allocate sidelink resources or does not configure or allocate sufficient sidelink resources, or the first terminal selects a resource pool that does not include sidelink resources based on the service requirement or other reasons. In these cases, it can be considered that the first terminal does not obtain the sidelink resource used by the second terminal to transmit the sidelink feedback information. When the first terminal does not obtain the secondary link resource used by the second terminal to send the secondary link feedback information, the second terminal cannot send the secondary link feedback information, which causes the problem of poor sidelink transmission performance.

It should be noted that, the fact that the first terminal does not obtain the sidelink resource used by the second terminal to transmit the sidelink feedback information may mean that the first terminal does not obtain the sidelink time-frequency domain resource used to transmit the sidelink feedback information at all, or that the first terminal does not obtain enough sidelink time-frequency domain resource used to transmit the sidelink feedback information.

In the embodiment of the present invention, when the above problem is encountered, the first terminal may implement acquisition of the sidelink resource in multiple ways, which will be specifically described below.

The first method is as follows: the first terminal sends an RRC connection establishment request or an RRC connection recovery request to the network side equipment.

In this manner, the first terminal is in an RRC IDLE state (i.e., RRC _ IDLE state) or an RRC INACTIVE state (i.e., RRC _ INACTIVE state), and no resource is allocated by other terminals. The communication device in step 301 is the above network side device.

Optionally, before the first terminal sends the RRC connection establishment request or the RRC connection recovery request to the network side device, the method further includes:

the first terminal receives a system message sent by a network side device, wherein the system message comprises configuration information used for transmission of a sidelink.

The second method comprises the following steps: and the first terminal sends a sidelink resource request to the network side equipment.

In this method, the first terminal is in an RRC connected state and is not allocated resources by another terminal. The communication device in step 301 is the above network side device.

Optionally, before the first terminal sends the sidelink resource request to the network side device, the method further includes:

the first terminal receives a system message or a dedicated signaling sent by a network side device, wherein the system message or the dedicated signaling comprises configuration information used for sidelink transmission.

The third method comprises the following steps: the first terminal sends a sidelink resource request to the third terminal.

In this embodiment, the first terminal is allocated resources by a third terminal, and the communication device in step 301 is the third terminal.

It should be noted that, when the first terminal operates in the mode-2d mode, it can also be understood that the first terminal is allocated resources by the third terminal. At this time, the first terminal may be a scheduled terminal in mode-2d mode, and the third terminal may be a scheduled terminal in mode-2d mode. Thus, while the first terminal is operating in this mode, the first terminal may send a sidelink resource request to the third terminal.

Here, the Mode-2d (or referred to as Mode 2d) Mode is a sub-Mode in which the terminal autonomously selects the resource Mode2, where there are a scheduling terminal and a scheduled terminal, and sidelink transmission of the scheduled terminal is scheduled by the scheduling terminal.

Optionally, before the first terminal sends the sidelink resource request to the third terminal, the method further includes:

and the first terminal receives the special signaling sent by the third terminal, wherein the special signaling comprises configuration information for the transmission of the sidelink.

The method is as follows: the first terminal sends an RRC connection establishment request or an RRC connection recovery request to the network side equipment, and under the condition that the RRC connection establishment of the first terminal is successful or the RRC connection recovery is successful, the first terminal also sends a secondary link resource request to the network side equipment.

By the method, the first terminal is possible to acquire the sidelink resources, and the first terminal can notify the acquired sidelink resources to the second terminal, so that the second terminal can use the sidelink resources to realize the sending of the sidelink feedback information, and the sidelink transmission performance is improved.

In the embodiment of the present invention, a method for determining whether the first terminal obtains the secondary link resource is further provided.

That is, when a first terminal receives a system message or a dedicated signaling sent by a communication device, and the system message or the dedicated signaling includes configuration information for sidelink transmission, the first terminal does not obtain a sidelink resource used by a second terminal to send the sidelink feedback information, including:

the configuration information does not include sidelink resource indication information, and the sidelink resource indication information is used for indicating sidelink resources used for sending the sidelink feedback information.

That is, when the first terminal receives the system message or the dedicated signaling sent by the communication device, and the system message or the dedicated signaling includes the configuration information for the sidelink transmission, if the configuration information does not include the sidelink resource indication information, it may be determined that the first terminal does not obtain the sidelink resource used by the second terminal to send the sidelink feedback information.

Even if the configuration information includes the sidelink resource indication information, the sidelink resource indicated by the sidelink resource indication information does not include sufficient sidelink time-frequency domain resources, and the configuration information may be regarded as not including the sidelink resource indication information. For example, the first terminal establishes unicast connections with N terminals, and unicast traffic between the first terminal and the N terminals needs the N terminals to send the sidelink feedback information. At this time, even if the configuration information includes the sidelink resource indication information, but the sidelink resources indicated by the sidelink resource indication information are not enough for the N terminals to transmit the sidelink feedback information, it is determined that the first terminal does not obtain the sidelink resources used by the second terminal to transmit the sidelink feedback information.

Specifically, when at least one of the following conditions is satisfied, it may be determined that the sidelink resource indication information is not included in the configuration information:

the configuration information comprises one or more resource pools used for performing sidelink transmission and reception by the second terminal, wherein all or part of the resource pools do not comprise sidelink resources;

the configuration information comprises one or more resource pools specially used for unicast, wherein all or part of the resource pools do not comprise sidelink resources;

the configuration information comprises one or more resource pools specially used for multicast, wherein all or part of the resource pools do not comprise sidelink resources;

the configuration information includes one or more sending resource pools for sidelink, wherein all or part of the sending resource pools do not include sidelink resources, or one or more resource pools for the second terminal to send unicast service do not include sidelink resources, or one or more resource pools for the second terminal to send multicast service do not include sidelink resources;

the configuration information includes one or more receiving resource pools for sidelink, where all or part of the receiving resource pools do not include sidelink resources, or one or more resource pools for the second terminal to receive the unicast service do not include sidelink resources, or one or more resource pools for the second terminal to receive the multicast service do not include sidelink resources.

It should be noted that, the sending resource pool refers to that the terminal will send service data on it, and the receiving resource pool refers to that the terminal will receive service data on it, and does not mean that the sending resource pool can only send, and the receiving resource pool can only receive. The terminal receives the sidelink feedback information of the transmitted service data on the transmission resource pool. And the terminal may also send the sidelink feedback information for the opposite-end service on the sending resource pool or the receiving resource pool.

Optionally, the sidelink resource indication information includes at least one of:

time domain (time) information of the sidelink resource;

frequency domain (frequency) information of sidelink resources;

coding (code) information of sidelink resources;

the period information of the sidelink resource, for example, if the sidelink resource is repeatedly configured every N slots (slots), the value of N is the period information of the sidelink resource, and N is an integer;

relationship information between a secondary link resource and a PSCCH (Physical Sidelink Control Channel) resource, for example, assuming that the secondary link resource is configured in a slot a behind the PSCCH resource, a value of a is relationship information between the secondary link resource and the PSCCH resource, where a is an integer;

the relationship information between the secondary link resource and the PSSCH resource, for example, if the secondary link resource is configured in B slots behind the PSSCH resource, the value of B is the relationship information between the secondary link resource and the PSSCH resource, and B is an integer;

reference information used for determining relationship information between the secondary link resource and the PSSCH resource, for example, assuming that the secondary link resource is configured in C slots behind the PSSCH resource, and a value of C is related to K, a value of K is the reference information used for determining the relationship information between the secondary link resource and the PSSCH resource (for example, C is a minimum integer greater than or equal to K), and C and K are both integers.

Optionally, the sending, by the first terminal, a sidelink resource request to the communication device includes at least one of:

the first terminal sends first secondary link terminal information (SidelinkUEInformation) to the communication equipment, wherein the first secondary link terminal information carries the secondary link resource request;

when the first terminal needs to send second secondary link terminal information to the communication equipment, the first terminal carries the secondary link resource request in the second secondary link terminal information;

the first terminal sends first auxiliary information to the communication equipment, wherein the first auxiliary information carries the sidelink resource request;

when the first terminal needs to send second auxiliary information to the communication equipment, the first terminal carries the sidelink resource request in the second auxiliary information;

the first terminal sends a first BSR (Buffer Status Report) to the communication device, where the first BSR carries the sidelink resource request;

when the first terminal needs to send a second BSR to the communication device, the first terminal carries the sidelink resource request in the second BSR;

and the first terminal sends an RRC message to the communication equipment, wherein the RRC message carries the sidelink resource request.

In the embodiment of the present invention, various manners for determining whether the second terminal needs to send the sidelink feedback information to the first terminal are also provided.

That is, it is determined that the second terminal needs to transmit the sidelink feedback information to the first terminal when at least one of the following conditions is satisfied:

the first terminal activates a feedback function;

the configuration information comprises resource information used for unicast, and the configuration information is used for sidelink transmission;

the configuration information comprises resource information used for multicast, and the configuration information is used for transmission of a sidelink;

the first terminal establishes a unicast connection or exchanges information related to unicast communication with at least one terminal, wherein the at least one terminal comprises the second terminal;

the first terminal establishes a multicast connection or exchanges information related to multicast communication with at least one terminal, wherein the at least one terminal comprises the second terminal;

unicast service needing feedback exists between the first terminal and at least one terminal, wherein the at least one terminal comprises the second terminal;

a multicast service which needs to be fed back exists between the first terminal and at least one terminal, and the at least one terminal comprises the second terminal;

the first terminal receives first indication information, wherein the first indication information is used for indicating that the first terminal has unicast service arrival, or is used for indicating that the first terminal has unicast service needing feedback;

the first terminal receives second indication information, wherein the second indication information is used for indicating that the first terminal has multicast service arrival, or indicating that the first terminal has multicast service needing to be fed back;

the first terminal detects that at least one terminal is located in a communication range where the sidelink feedback information needs to be sent or enters the communication range where the sidelink feedback information needs to be sent, and the at least one terminal comprises the second terminal.

It should be noted that the resource information for unicast may include resource pool information or other information that may indicate a time-frequency location of a resource. The resource information for multicast may include resource pool information or other information that may indicate the time-frequency location of the resource. The first indication information may be indicated to the first terminal by the upper layer of the first terminal, or may be received by the first terminal from the outside. The second indication information may be indicated to the first terminal by the upper layer of the first terminal, or may be received by the first terminal from the outside.

It should be further noted that, whether the second terminal is located in the communication range where the sidelink feedback information needs to be sent may be determined by:

the first method is as follows: based on the position Information carried in the data packet, the Control Information or the SFCI (Sidelink Feedback Control Information) (including the HARQ Feedback Information and the CSI Feedback Information) received by the second terminal from the first terminal, the second terminal calculates the distance to the first terminal and compares the distance to a certain threshold. If the value is lower than the threshold, the second terminal is considered to be located in the communication range where the sidelink feedback information needs to be sent, otherwise, the second terminal is considered not to be located in the communication range where the sidelink feedback information needs to be sent. The location information may be geographical coordinates, or zone (zone) ID, or zone information, or other information that reflects or infers the geographical location.

The second method comprises the following steps: based on the Reference Signal transmitted from the first terminal, the RSRP (Reference Signal Received Power)/RSRQ (Reference Signal Received Quality)/SINR (Signal-to-noise and interference ratio)/RSSI (Received Signal Strength Indication) of the Signal obtained by measurement is compared with a threshold. If the value is higher than the threshold value, the second terminal is considered to be located in the communication range where the sidelink feedback information needs to be sent, otherwise, the second terminal is considered not to be located in the communication range where the sidelink feedback information needs to be sent.

Here, the communication range refers to a range for determining whether the second terminal needs to transmit the sidelink feedback information, and does not represent a range for transmitting data, receiving data, or control information.

In order to more clearly understand the embodiments of the present invention, the following specifically describes the embodiments of the present invention from a plurality of examples.

Example one: the resource used by the receiving UE2 to send sidelink HARQ feedback information is notified by the sending UE1, and the sending UE1 is in RRC _ IDLE or RRC _ INACTIVE state.

Step 1: the UE1 receives a system message from the network side device, where the system message includes relevant configuration information for sidelink;

step 2: when the preset condition is met and the UE1 does not obtain the resource available for sending the HARQ feedback information, the UE1 initiates an RRC connection establishment or RRC connection recovery procedure to the network side device.

Wherein, the preset condition may include at least one of the following conditions:

UE1 has established a unicast connection or exchanged information related to a unicast communication with one or more UEs (User Equipment);

the UE1 receives the relevant configuration information for sidelink, which includes resource information dedicated to unicast;

unicast service exists between the UE1 and one or more UEs and the UE at the receiving end is required to send HARQ feedback information;

the upper layer of the UE1 indicates that the UE1 has unicast service arrival or directly indicates that the UE1 has service to require the receiving end UE to send HARQ feedback information;

the UE1 has activated the HARQ feedback function;

the UE1 has established a multicast connection or exchanged information related to multicast communications with one or more UEs;

the UE1 receives the relevant configuration information for sidelink, which includes the resource relevant information dedicated for multicast;

there is a multicast service between UE1 and one or more UEs that requires the receiving end UE to send HARQ feedback information;

the upper layer of the UE1 indicates that the UE1 has the multicast service arrival or directly indicates that the UE1 has the service and needs the receiving end UE to send the HARQ feedback information;

the UE1 detects that one or more receiving-end UEs are in a communication range or enter a communication range in which HARQ feedback information needs to be transmitted.

Wherein the UE1 does not obtain resources available for transmitting HARQ feedback information, which may include:

the UE1 does not include the PSFCH resource information in the relevant configuration information for sidelink received from the network side device.

The PSFCH resource information is not included in the relevant configuration information for sidelink received by the UE1 from the network side device, and may include the following possible cases:

the configuration information of the network side device includes one or more resource pools for sidelink transmission and reception by the UE1, where X resource pools do not include PSFCH resources (X is an integer and may be a partial quantity or all of all resource pools);

the configuration information of the network side equipment comprises one or more resource pools special for unicast, wherein Y resource pools special for unicast do not comprise PSFCH resources;

the configuration information of the network side equipment comprises one or more resource pools special for multicast, wherein the Z resource pools special for multicast do not comprise PSFCH resources;

the configuration information of the network side device includes one or more transmission resource pools for sidelink, where C transmission resource pools do not include a PSFCH resource, D resource pools for UE1 to transmit unicast service do not include a PSFCH resource, or E resource pools for UE1 to transmit multicast service do not include a PSFCH resource;

the configuration information of the network side device includes one or more receiving resource pools for sidelink, where F receiving resource pools do not include a PSFCH resource, G resource pools for the UE1 to receive the unicast service do not include a PSFCH resource, or H resource pools for the UE1 to receive the multicast service do not include a PSFCH resource.

Example two: the resource used by the receiving UE2 to send sidelink HARQ feedback information is notified by the sending UE1, and the sending UE1 is in RRC _ CONNECTED state.

Step 1: the UE1 receives a system message or dedicated signaling from the network side device, which includes the relevant configuration information for sidelink;

step 2: when a preset condition (which may refer to the relevant description about the preset condition in example one) is satisfied and the UE1 does not obtain resources available for transmitting the HARQ feedback information, the UE1 takes at least one of the following to request the PSFCH resources for transmitting the HARQ feedback information:

the UE1 sends sidelinkUEinformation to the network side equipment and requests PSFCH resources for sending HARQ feedback information by the receiving end UE; or the UE1 carries the request information for the PSFCH resource used for the receiving end UE to send the HARQ feedback information when sending the sidelinkue information next time;

the UE1 sends UE auxiliary information to the network side device, and requests PSFCH resources for the receiving end UE to send HARQ feedback information; or the UE1 carries the request information for the PSFCH resource used for the receiving end UE to send HARQ feedback information when sending the UE auxiliary information next time;

the UE1 sends a BSR to the network side device, and requests a PSFCH resource for the receiving end UE to send HARQ feedback information; or the UE1 carries the request information for the PSFCH resource used for the receiving end UE to send the HARQ feedback information when sending the BSR next time;

the UE1 sends other RRC messages to the network side device, requesting PSFCH resources for the receiving UE to send HARQ feedback information.

The description in the first example can be applied to the second example, and is not repeated here to avoid repetition.

Example three: the resource used by the receiving UE2 to send sidelink HARQ feedback information is notified by the sending UE1, and the sending UE1 operates in mode-2d mode or is responsible for allocating resource to the UE1 by the UE3, where the UE3 may be a control UE of mode2d or other UEs responsible for allocating resource to the UE 1.

Step 1: the UE1 receives dedicated signaling from the UE3, including relevant configuration information for sidelink;

the UE1 sends sidelinkUEinformation to the UE3 and requests PSFCH resources for sending HARQ feedback information by the UE at the receiving end; or the UE1 carries the request information for the PSFCH resource used for the receiving end UE to send the HARQ feedback information when sending the sidelinkue information next time;

the UE1 sends UE assistance information to the UE3 and requests PSFCH resources for the receiving end UE to send HARQ feedback information; or the UE1 carries the request information for the PSFCH resource used for the receiving end UE to send HARQ feedback information when sending the UE auxiliary information next time;

the UE1 sends a BSR to the UE3 and requests PSFCH resources for the receiving end UE to send HARQ feedback information; or the UE1 carries the request information for the PSFCH resource used for the receiving end UE to send the HARQ feedback information when sending the BSR next time;

the UE1 sends other RRC messages to the UE3 requesting PSFCH resources for the receiving UE to send HARQ feedback information.

The description in the first example can be applied to the third example, and is not repeated here to avoid repetition.

Example four: the resource used by the receiving-side UE2 to transmit CSI feedback information is notified by the transmitting-side UE 1.

For this example, reference may be made to the related descriptions of the first example and the second example, and details are not described here to avoid repetition.

Note that the RRC _ IDLE/INACTIVE/CONNECTED refers to an RRC CONNECTED state between the UE and the network side device, and is not an RRC CONNECTED state with the UE on the opposite side.

By combining the above various embodiments and examples, in the embodiment of the present invention, when the second terminal needs to send the sidelink feedback information, but the first terminal does not obtain the sidelink resource used for sending the sidelink feedback information, in order to implement sending of the sidelink feedback information, the first terminal can actively adopt corresponding measures to obtain the corresponding sidelink resource, so as to improve the sidelink transmission performance.

Fig. 4 is a flowchart of another resource acquisition method according to an embodiment of the present invention. As shown in fig. 4, the resource acquisition method includes the following steps:

step 401: in case the second terminal does not obtain its secondary link resources to use for transmitting secondary link feedback information, the second terminal performs at least one of:

a sidelink resource request is sent to a communication device.

In the embodiment of the present invention, the second terminal may be understood as a receiving terminal performing sidelink communication, that is, a terminal that needs to receive data or is receiving data.

The embodiment of the invention is suitable for the sidelink communication scene that the second terminal needs to send the sidelink feedback information but does not obtain the sidelink resource used for sending the sidelink feedback information.

In the sidelink communication scenario, the second terminal may implement the acquisition of the sidelink resource in various ways, which will be described in detail below.

The first method is as follows: and the second terminal sends an RRC connection establishment request or an RRC connection recovery request to the network side equipment.

In this manner, the second terminal is in an RRC IDLE state (i.e., RRC _ IDLE state) or an RRC INACTIVE state (i.e., RRC _ INACTIVE state), and no resource is allocated by other terminals. The communication device in step 401 is the above network side device.

Optionally, before the second terminal sends the RRC connection establishment request or the RRC connection recovery request to the network side device, the method further includes at least one of:

the second terminal receives a system message sent by network side equipment, wherein the system message comprises first configuration information used for sidelink transmission;

and the second terminal receives the RRC message sent by the first terminal, wherein the RRC message comprises second configuration information used for secondary link transmission.

The second method comprises the following steps: and the second terminal sends the sidelink resource request to the network side equipment.

In this method, the second terminal is in an RRC connected state and is not allocated with resources by another terminal. The communication device in step 401 is the above network side device.

Optionally, before the second terminal sends the sidelink resource request to the network side device, the method further includes at least one of:

a second terminal receives a system message or a special signaling sent by network side equipment, wherein the system message or the special signaling comprises first configuration information used for transmission of a sidelink;

The third method comprises the following steps: the second terminal sends a sidelink resource request to the first terminal.

In this manner, the second terminal is allocated with resources by the first terminal, and the communication device in step 401 is the first terminal.

Optionally, before the second terminal sends the sidelink resource request to the first terminal, the method further includes at least one of:

The method is as follows: the second terminal sends a sidelink resource request to the third terminal.

In this manner, the second terminal is allocated with resources by a third terminal, and the communication device in step 401 is the third terminal.

It should be noted that, when the second terminal operates in the mode-2d mode, it can also be understood that the second terminal is allocated resources by the third terminal. Thus, while the second terminal is operating in this mode, the second terminal may send a secondary link resource request to the third terminal.

Optionally, before the second terminal sends the sidelink resource request to the third terminal, the method further includes:

and the second terminal receives an RRC message sent by the third terminal, wherein the RRC message comprises configuration information used for secondary link transmission.

The fifth mode is as follows: the second terminal sends an RRC connection establishment request or an RRC connection recovery request to the network side equipment, and under the condition that the RRC connection establishment of the second terminal is successful or the RRC connection recovery is successful, the second terminal also sends a secondary link resource request to the network side equipment.

In the first to fifth embodiments, the first terminal may be a terminal performing sidelink communication with the second terminal, the first terminal may be a transmitting terminal performing sidelink communication, that is, a terminal that needs to transmit data or is transmitting data, and the second terminal may be a receiving terminal performing sidelink communication, that is, a terminal that needs to receive data or is receiving data. Since data transmission and reception may be bidirectional, the transmitting terminal refers to a terminal that transmits data in a certain time interval, and the receiving terminal refers to a terminal that receives data in the same time interval and needs to feed back the received data. The first terminal may be a service sending terminal or an opposite terminal in unicast communication, may be a head-of-group terminal in multicast communication, and may be any member terminal in multicast communication.

The RRC message transmitted by the first terminal may include a PC5-RRC message.

The RRC message transmitted by the third terminal may also include a PC5-RRC message.

Here, the PC5-RRC message refers to an RRC message transmitted on sidelink.

Through the above manners, the second terminal may acquire the sidelink resource, and thus, the second terminal may use the sidelink resource to transmit the sidelink feedback information, thereby improving the sidelink transmission performance.

In the embodiment of the present invention, various ways for determining whether the second terminal obtains the secondary link resource are also provided.

That is, the secondary link resource used by the second terminal to transmit the secondary link feedback information is not obtained by the second terminal, and includes at least one of:

the first configuration information does not include first secondary link resource indication information, where the first secondary link resource indication information is used to indicate a first secondary link resource used to send the secondary link feedback information;

the second configuration information does not include second secondary link resource indication information, where the second secondary link resource indication information is used to indicate a second secondary link resource used to send the secondary link feedback information;

and the second terminal does not obtain enough secondary link resources from the obtained secondary link resource set to send the secondary link feedback information.

That is, when the second terminal receives the system message or the dedicated signaling sent by the communication device, and the system message or the dedicated signaling includes the configuration information for the sidelink transmission, if the configuration information does not include the sidelink resource indication information, it may be determined that the second terminal does not obtain the sidelink resource used for sending the sidelink feedback information.

Even if the first allocation information or the second allocation information includes the sidelink resource indication information, the sidelink resource indicated by the sidelink resource indication information does not include sufficient sidelink time-frequency domain resources, and it can be regarded that the sidelink resource indication information is not included in any of the allocation information (the first allocation information or the second allocation information).

Specifically, when at least one of the following conditions is satisfied, it may be determined that the sidelink resource indication information is not included in any of the configuration information:

time domain information of the sidelink resource;

frequency domain information of the sidelink resources;

coding information of the sidelink resource;

the period information of the sidelink resource, for example, if the sidelink resource is configured repeatedly every N slots, the value of N is the period information of the sidelink resource, and N is an integer;

the relationship information between the secondary link resource and the PSCCH resource, for example, if the secondary link resource is configured in a slots behind the PSCCH resource, the value of a is the relationship information between the secondary link resource and the PSCCH resource, and a is an integer;

Optionally, the second terminal sends a sidelink resource request to the communication device, where the sidelink resource request includes at least one of:

the second terminal sends first secondary link terminal information to the communication equipment, wherein the first secondary link terminal information carries the secondary link resource request;

when the second terminal needs to send second secondary link terminal information to the communication device, the second terminal carries the secondary link resource request in the second secondary link terminal information;

the second terminal sends first auxiliary information to the communication equipment, wherein the first auxiliary information carries the sidelink resource request;

when the second terminal needs to send second auxiliary information to the communication device, the second terminal carries the sidelink resource request in the second auxiliary information;

the second terminal sends a first BSR to the communication equipment, wherein the first BSR carries the sidelink resource request;

when the second terminal needs to send a second BSR to the communication device, the second terminal carries the sidelink resource request in the second BSR;

and the second terminal sends an RRC message to the communication equipment, wherein the RRC message carries the sidelink resource request.

the second terminal activates a feedback function;

the second terminal establishes a unicast connection with at least one terminal or exchanges information related to unicast communication;

the second terminal establishes a multicast connection with at least one terminal or exchanges information related to multicast communication;

unicast service needing to be fed back exists between the second terminal and at least one terminal;

a multicast service needing to be fed back exists between the second terminal and at least one terminal;

the second terminal receives first indication information, wherein the first indication information is used for indicating that the second terminal has unicast service arrival, or is used for indicating that the second terminal has unicast service needing feedback;

the second terminal receives second indication information, wherein the second indication information is used for indicating that the second terminal has multicast service arrival, or indicating that the second terminal has multicast service needing to be fed back;

the second terminal is positioned in a communication range in which the secondary link feedback information needs to be sent or enters the communication range in which the secondary link feedback information needs to be sent;

the second terminal receives third indication information, wherein the third indication information is used for indicating that the second terminal needs to send secondary link feedback information;

and the second terminal receives a secondary link feedback activation instruction.

It should be noted that the resource information for unicast may include resource pool information or other information that may indicate a time-frequency location of a resource. The resource information for multicast may include resource pool information or other information that may indicate the time-frequency location of the resource. The first indication information may be indicated to the second terminal by the upper layer of the second terminal, or may be received by the second terminal from the outside. The second indication information may be indicated to the second terminal by the upper layer of the second terminal, or may be received by the second terminal from the outside. The third indication information may be a special HARQ feedback activation instruction, or other configuration or indication information carries an indication indicating that the second terminal needs to send HARQ feedback information, and the third indication information may be a direct indication of 1bit, or configuration information related to sending HARQ feedback information (but does not include resources used for sending HARQ feedback information).

the first method is as follows: based on the position information carried in the data packet, the control information or the SFCI (including the HARQ feedback information and the CSI feedback information) received by the second terminal from the first terminal, the second terminal calculates the distance to the first terminal and compares the distance to a certain threshold. If the value is lower than the threshold, the second terminal is considered to be located in the communication range where the sidelink feedback information needs to be sent, otherwise, the second terminal is considered not to be located in the communication range where the sidelink feedback information needs to be sent. The location information may be geographical coordinates, or zone (zone) ID, or zone information, or other information that reflects or infers the geographical location.

The second method comprises the following steps: based on the measurement of the received reference signal from the first terminal, the RSRP/RSRQ/SINR/RSSI of the signal obtained by the measurement is compared with a threshold. If the value is higher than the threshold value, the second terminal is considered to be located in the communication range where the sidelink feedback information needs to be sent, otherwise, the second terminal is considered not to be located in the communication range where the sidelink feedback information needs to be sent.

Example one: the receiving UE2 is in RRC _ IDLE or RRC _ INACTIVE state, and the resource used by the UE2 to send the HARQ feedback information is configured by the network side device. Wherein, the UE2 is a receiving end in the unicast service, and the HARQ feedback information of the UE2 may be sent to the network side device, or may be sent to the transmitting end UE1 performing sidelink communication with the UE 2.

Step 1: the UE2 receives a system message from the network side device, where the system message includes relevant configuration information for sidelink;

step 1.1: the UE2 receives a PC5-RRC message from the sender UE1, which includes related configuration information for sidelink;

step 2: when the preset condition is met and the UE2 does not obtain the resource available for sending the HARQ feedback information, the UE2 initiates an RRC connection establishment or connection recovery process to the network side device.

Wherein step 1 and step 1.1 may occur in one or both of them. For example, the PSFCH resource information used for transmitting the HARQ feedback information may be a system message from the network side device or from the UE 1. For example, the time-frequency domain information of the PSFCH resource used for transmitting the HARQ feedback information is from the system message of the network side device, and the relationship information of the PSFCH resource and the PSSCH resource is from the UE 1. In the case where both step 1 and step 1.1 occur, the sidelink configuration information is delivered to the UE2 in two parts.

UE2 has established a unicast connection or exchanged information related to a unicast communication with one or more UEs;

the UE2 receives the relevant configuration information for sidelink, which includes resource pool information dedicated to unicast;

unicast service between the UE2 and one or more UEs needs to send HARQ feedback information;

the upper layer of the UE2 indicates that the UE2 has unicast traffic or directly indicates that the UE2 needs to send HARQ feedback information;

the UE2 receives configuration or indication information of a network side device or one or more UEs, wherein the UE2 is indicated to need to send HARQ feedback information;

the UE2 has activated the HARQ feedback function;

the UE2 has established a multicast connection or exchanged information related to multicast communications with one or more UEs;

the UE2 receives the relevant configuration information for sidelink, which includes resource pool information dedicated for multicast;

there is multicast service between UE2 and one or more UEs that needs to send HARQ feedback information;

the upper layer of the UE2 indicates that the UE2 has the multicast service to arrive or directly indicates that the UE2 needs to send the HARQ feedback information;

the UE2 receives the indication information of the group header, wherein the indication information indicates that the UE2 needs to send HARQ feedback information;

the UE2 receives the HARQ activation instruction sent by the group head;

the UE2 enters or is within a communication range in which HARQ feedback information needs to be transmitted.

Wherein the UE2 does not obtain resources available for transmitting HARQ feedback information, which may include at least one of:

the UE2 does not include the PSFCH resource information in the relevant configuration information for sidelink received from the network side device and/or UE 1;

the UE2 may not obtain enough PSFCH resources from the received set of PSFCH resources for transmitting HARQ feedback information by sending.

When the PSFCH resource information comes from the network side device and the UE2, as the above mentioned time-frequency domain information of the PSFCH resource for transmitting the HARQ feedback information comes from the system message of the network side device, and the relationship information of the PSFCH resource and the PSSCH resource comes from the UE2, then the PSFCH resource information is not included in the relevant configuration information for sidelink at this time, which means that at least one of the PSFCH resource information transmitted by the network side device and the PSFCH resource information transmitted by the UE2 is not included.

The PSFCH resource information is not included in the relevant configuration information for sidelink received by the UE2 from the network side device and/or the UE1, and may include the following possible cases:

the configuration information of the network side device includes one or more resource pools for sidelink transmission and reception by the UE2, where X resource pools do not include PSFCH resources (X is an integer and may be a partial quantity or all of all resource pools);

the configuration information of the network side device includes one or more transmission resource pools for sidelink, where C transmission resource pools do not include a PSFCH resource, D resource pools for UE2 to transmit unicast service do not include a PSFCH resource, or E resource pools for UE2 to transmit multicast service do not include a PSFCH resource;

the configuration information of the network side device includes one or more receiving resource pools for sidelink, where F receiving resource pools do not include a PSFCH resource, G resource pools for the UE2 to receive the unicast service do not include a PSFCH resource, or H resource pools for the UE2 to receive the multicast service do not include a PSFCH resource.

Example two: the resource used by the receiving UE2 to send sidelink HARQ feedback information is configured by the transmitting UE1 or UE 3. The UE1 is a service sending end UE or an opposite end UE in unicast communication, may also be a head-of-group UE in multicast communication, and may also be any member UE in multicast communication. The UE3 may be a controlling UE in mode-2d mode, or other UE responsible for allocating resources to the UE 2. The UE1 and the UE3 may be the same UE, e.g., a controlling UE that is both a sender UE and mode2 d.

step 1.1: UE2 receives a PC5-RRC message from UE1 or UE3, including the relevant configuration information for sidelink;

step 2: when a preset condition (which may refer to the relevant description about the preset condition in example one) is satisfied and the UE2 does not obtain resources available for transmitting the HARQ feedback information, the UE2 takes at least one of the following to request the PSFCH resources for transmitting the HARQ feedback information:

UE2 sends sidelinkue information to UE1 or UE3 and requests PSFCH resources for UE2 to send HARQ feedback information; or the UE2 carries the request information for the PSFCH resource used for the UE2 to send the HARQ feedback information when sending the sidelinkue information next time;

UE2 sends UE assistance information to UE1 or UE3 and requests PSFCH resources for UE2 to send HARQ feedback information; or the UE2 carries the request information for the PSFCH resource used for the UE2 to transmit the HARQ feedback information when the UE assistance information is transmitted next time;

UE2 sends a BSR to UE1 or UE3 and requests PSFCH resources for UE2 to send HARQ feedback information; or the UE2 carries the request information for the PSFCH resource used for the UE2 to transmit the HARQ feedback information when the BSR is transmitted next time;

UE2 sends other RRC messages to UE1 or UE3 requesting PSFCH resources for UE2 to send HARQ feedback information.

Wherein step 1 and step 1.1 may occur in one or both of them.

Example three: the receiving UE2 is RRC _ CONNECTED, and the resource information used by the UE2 to transmit the HARQ feedback information is configured by the network side device.

Step 1: the UE2 receives a system message or dedicated signaling from the network side device, which includes the relevant configuration information for sidelink;

step 1.1: the UE2 receives a PC5-RRC message from the UE1, including the relevant configuration information for sidelink;

step 2: when a preset condition (which may refer to the relevant description about the preset condition in example one) is satisfied and the UE2 does not obtain resources available for transmitting the HARQ feedback information (details are the same as in embodiment one), the UE2 takes at least one of the following to request the PSFCH resources for transmitting the HARQ feedback information:

the UE2 sends sidelinkue information to the network side device, and requests a PSFCH resource for the UE2 to send HARQ feedback information; or the UE2 carries the request information for the PSFCH resource used for the UE2 to send the HARQ feedback information when sending the sidelinkue information next time;

the UE2 sends UE assistance information to the network side device and requests PSFCH resources for the UE2 to send HARQ feedback information; or the UE2 carries the request information for the PSFCH resource used for the UE2 to transmit the HARQ feedback information when the UE assistance information is transmitted next time;

the UE2 sends a BSR to the network side device and requests PSFCH resources for the UE2 to send HARQ feedback information; or the UE2 carries the request information for the PSFCH resource used for the UE2 to transmit the HARQ feedback information when the BSR is transmitted next time;

the UE2 sends other RRC messages to the network side device requesting PSFCH resources for the UE2 to send HARQ feedback information.

Wherein step 1 and step 1.1 may occur in one or both of them.

Example four: the resource used by the receiving UE2 to send CSI feedback information is configured by the network side device or UE 1.

For this example, reference may be made to the related descriptions of examples one to three, and details are not described here to avoid repetition.

By combining the above various embodiments and examples, in the embodiment of the present invention, when the second terminal needs to send the sidelink feedback information but the second terminal does not obtain the sidelink resource used for sending the sidelink feedback information, in order to implement sending of the sidelink feedback information, the second terminal can actively adopt corresponding measures to obtain the corresponding sidelink resource, so as to improve the sidelink transmission performance.

Fig. 5 is a structural diagram of a first terminal according to an embodiment of the present invention, and as shown in fig. 5, the first terminal 500 includes:

a sending module 501, configured to, in a case that the first terminal does not obtain a sidelink resource used by a second terminal to send sidelink feedback information, perform at least one of the following:

sending a sidelink resource request to the communication device;

Optionally, as shown in fig. 6, the first terminal 500 further includes:

a receiving module 502, configured to receive a system message or a dedicated signaling sent by the communication device, where the system message or the dedicated signaling includes configuration information for sidelink transmission.

Optionally, the sending module 501 is specifically configured to:

when the configuration information received by the receiving module 502 does not include the sidelink resource indication information, at least one of the following is executed:

sending a sidelink resource request to the communication device;

wherein the secondary link resource indication information is used for indicating the secondary link resource used for transmitting the secondary link feedback information.

Optionally, as shown in fig. 7, the first terminal 500 further includes:

a determining module 503, configured to determine that the second terminal needs to send the sidelink feedback information to the first terminal when at least one of the following conditions is met:

the first terminal activates a feedback function;

Optionally, the communication device includes at least one of a network side device and a third terminal;

the sending module 501 is specifically configured to:

if the first terminal is in an RRC idle state or an RRC inactive state and resources are not allocated by other terminals, sending the RRC connection establishment request or the RRC connection recovery request to network side equipment;

if the first terminal is in an RRC (radio resource control) connected state and resources are not allocated by other terminals, sending the sidelink resource request to network side equipment;

and if the first terminal is allocated with resources by a third terminal, sending the sidelink resource request to the third terminal.

Optionally, when the step of sending the sidelink resource request to the communication device is executed, the sending module 501 includes at least one of:

sending first secondary link terminal information to the communication equipment, wherein the first secondary link terminal information carries the secondary link resource request;

when the first terminal needs to send second secondary link terminal information to the communication equipment, carrying the secondary link resource request in the second secondary link terminal information;

sending first auxiliary information to the communication equipment, wherein the first auxiliary information carries the sidelink resource request;

when the first terminal needs to send second auxiliary information to the communication equipment, carrying the secondary link resource request in the second auxiliary information;

sending a first Buffer Status Report (BSR) to the communication device, wherein the first BSR carries the sidelink resource request;

when the first terminal needs to send a second BSR to the communication equipment, carrying the sidelink resource request in the second BSR;

and sending an RRC message to the communication equipment, wherein the RRC message carries the sidelink resource request.

Optionally, the secondary link feedback information includes at least one of hybrid automatic repeat request HARQ feedback information for the secondary link and channel state information CSI feedback information for the secondary link.

Optionally, the secondary link resource includes at least one of a physical secondary link feedback channel PSFCH resource and a physical secondary link shared channel PSSCH resource.

time domain information of the sidelink resource;

frequency domain information of the sidelink resources;

coding information of the sidelink resource;

periodic information of sidelink resources;

relationship information of the secondary link resources and physical secondary link control channel PSCCH resources;

relationship information of the secondary link resource and the PSSCH resource;

and the reference information is used for determining the relationship information between the secondary link resources and the PSSCH resources.

It should be noted that, in the embodiment of the present invention, the first terminal 500 may be a first terminal of any implementation manner in the method embodiment, and any implementation manner of the first terminal in the method embodiment may be implemented by the first terminal 500 in the embodiment of the present invention, and the same beneficial effects are achieved, and in order to avoid repetition, details are not described here again.

Fig. 8 is a structural diagram of a second terminal according to an embodiment of the present invention, and as shown in fig. 8, the second terminal 600 includes:

a sending module 601, configured to, in a case that the second terminal does not obtain the sidelink resource that it uses to send the sidelink feedback information, perform at least one of the following:

sending a sidelink resource request to the communication device;

Optionally, as shown in fig. 9, the second terminal 600 further includes:

a receiving module 602, configured to at least one of:

receiving a system message or dedicated signaling sent by the communication device, wherein the system message or the dedicated signaling comprises first configuration information used for sidelink transmission;

and receiving an RRC message sent by the first terminal, wherein the RRC message comprises second configuration information used for secondary link transmission.

Optionally, the sending module 601 is specifically configured to, when the preset condition is met, execute at least one of the following:

sending a sidelink resource request to the communication device;

wherein the preset condition comprises at least one of:

the first configuration information received by the receiving module 602 does not include first secondary link resource indication information, where the first secondary link resource indication information is used to indicate a first secondary link resource used to send the secondary link feedback information;

the second configuration information received by the receiving module 602 does not include second secondary link resource indication information, where the second secondary link resource indication information is used to indicate a second secondary link resource used to send the secondary link feedback information;

Optionally, as shown in fig. 10, the second terminal 600 further includes:

a determining module 603, configured to determine that the second terminal needs to send the sidelink feedback information when at least one of the following conditions is met:

the second terminal activates a feedback function;

Optionally, the communication device includes at least one of a network side device, a first terminal, and a third terminal, where the first terminal is a terminal that needs the second terminal to send the sidelink feedback information;

the sending module 601 is specifically configured to:

if the second terminal is in an RRC idle state or an RRC inactive state and resources are not allocated by other terminals, sending the RRC connection establishment request or the RRC connection recovery request to network side equipment;

if the second terminal is in an RRC (radio resource control) connected state and resources are not allocated by other terminals, sending the sidelink resource request to network side equipment;

if the second terminal is allocated with resources by the first terminal, sending the sidelink resource request to the first terminal;

and if the second terminal is allocated with resources by the third terminal, sending the sidelink resource request to the third terminal.

Optionally, when the step of sending the sidelink resource request to the communication device is executed, the sending module 601 includes at least one of:

when the second terminal needs to send second secondary link terminal information to the communication equipment, carrying the secondary link resource request in the second secondary link terminal information;

when the second terminal needs to send second auxiliary information to the communication equipment, the secondary link resource request is carried in the second auxiliary information;

when the second terminal needs to send a second BSR to the communication device, carrying the sidelink resource request in the second BSR;

time domain information of the sidelink resource;

frequency domain information of the sidelink resources;

coding information of the sidelink resource;

periodic information of sidelink resources;

relationship information of the secondary link resource and the PSSCH resource;

It should be noted that, in the embodiment of the present invention, the second terminal 600 may be a second terminal of any implementation manner in the method embodiment, and any implementation manner of the second terminal in the method embodiment may be implemented by the second terminal 600 in the embodiment of the present invention, and the same beneficial effects are achieved, and in order to avoid repetition, details are not described here again.

Fig. 11 is a schematic diagram of a hardware structure of a first terminal for implementing various embodiments of the present invention, where the first terminal 700 includes, but is not limited to: a radio frequency unit 701, a network module 702, an audio output unit 703, an input unit 704, a sensor 705, a display unit 706, a user input unit 707, an interface unit 708, a memory 709, a processor 710, a power supply 711, and the like. Those skilled in the art will appreciate that the configuration shown in fig. 11 does not constitute a limitation of the first terminal, which may include more or fewer components than shown, or some components may be combined, or a different arrangement of components. In the embodiment of the present invention, the first terminal includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal, a wearable device, a pedometer, and the like.

The radio frequency unit 701 is configured to:

in the case that the first terminal does not obtain the secondary link resource used by the second terminal to transmit the secondary link feedback information, performing at least one of:

sending a sidelink resource request to the communication device;

Optionally, the radio frequency unit 701 is further configured to:

receiving a system message or dedicated signaling sent by the communication device, wherein the system message or the dedicated signaling comprises configuration information for sidelink transmission.

Optionally, the radio frequency unit 701 is specifically configured to:

when the configuration information received by the radio frequency unit 701 does not include the sidelink resource indication information, at least one of the following is performed:

sending a sidelink resource request to the communication device;

Optionally, the processor 710 is configured to:

determining that the second terminal needs to send the sidelink feedback information to the first terminal when at least one of the following conditions is met:

the first terminal activates a feedback function;

the radio frequency unit 701 is specifically configured to:

Optionally, when the processor 710 or the radio frequency unit 701 performs the step of sending the sidelink resource request to the communication device, the step includes at least one of:

time domain information of the sidelink resource;

frequency domain information of the sidelink resources;

coding information of the sidelink resource;

periodic information of sidelink resources;

relationship information of the secondary link resource and the PSSCH resource;

It should be understood that, in the embodiment of the present invention, the radio frequency unit 701 may be used for receiving and sending signals during a message transmission and reception process or a call process, and specifically, receives downlink data from a network side device and then processes the received downlink data to the processor 710; in addition, the uplink data is sent to the network side equipment. In general, radio frequency unit 701 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 701 may also communicate with a network and other devices through a wireless communication system.

The first terminal provides the user with wireless broadband internet access through the network module 702, such as helping the user send and receive e-mails, browse webpages, access streaming media, and the like.

The audio output unit 703 may convert audio data received by the radio frequency unit 701 or the network module 702 or stored in the memory 709 into an audio signal and output as sound. Also, the audio output unit 703 may also provide audio output related to a specific function performed by the first terminal 700 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 703 includes a speaker, a buzzer, a receiver, and the like.

The input unit 704 is used to receive audio or video signals. The input Unit 704 may include a Graphics Processing Unit (GPU) 7041 and a microphone 7042, and the Graphics processor 7041 processes image data of a still picture or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 706. The image frames processed by the graphic processor 7041 may be stored in the memory 709 (or other storage medium) or transmitted via the radio unit 701 or the network module 702. The microphone 7042 may receive sounds and may be capable of processing such sounds into audio data. The processed audio data may be converted into a format output transmittable to the mobile communication network side device via the radio frequency unit 701 in case of the phone call mode.

The first terminal 700 further includes at least one sensor 705, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor that adjusts the brightness of the display panel 7061 according to the brightness of ambient light, and a proximity sensor that turns off the display panel 7061 and a backlight when the first terminal 700 moves to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), detect the magnitude and direction of gravity when stationary, and can be used to identify the first terminal attitude (such as horizontal and vertical screen switching, related games, magnetometer attitude calibration), vibration identification related functions (such as pedometer, tapping), and the like; the sensors 705 may also include fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc., which are not described in detail herein.

The display unit 706 is used to display information input by the user or information provided to the user. The Display unit 706 may include a Display panel 7061, and the Display panel 7061 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.

The user input unit 707 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the first terminal. Specifically, the user input unit 707 includes a touch panel 7071 and other input devices 7072. The touch panel 7071, also referred to as a touch screen, may collect touch operations by a user on or near the touch panel 7071 (e.g., operations by a user on or near the touch panel 7071 using a finger, a stylus, or any other suitable object or attachment). The touch panel 7071 may include two parts of a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 710, receives a command from the processor 710, and executes the command. In addition, the touch panel 7071 can be implemented by various types such as resistive, capacitive, infrared, and surface acoustic wave. The user input unit 707 may include other input devices 7072 in addition to the touch panel 7071. In particular, the other input devices 7072 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 are not described herein again.

Further, the touch panel 7071 may be overlaid on the display panel 7071, and when the touch panel 7071 detects a touch operation thereon or nearby, the touch operation is transmitted to the processor 710 to determine the type of the touch event, and then the processor 710 provides a corresponding visual output on the display panel 7061 according to the type of the touch event. Although the touch panel 7071 and the display panel 7061 are shown in fig. 9 as two separate components to implement the input and output functions of the first terminal, in some embodiments, the touch panel 7071 and the display panel 7061 may be integrated to implement the input and output functions of the first terminal, which is not limited herein.

The interface unit 708 is an interface through which an external device is connected to the first terminal 700. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 708 may be used to receive input (e.g., data information, power, etc.) from an external device and transmit the received input to one or more elements within the first terminal 700 or may be used to transmit data between the first terminal 700 and the external device.

The memory 709 may be used to store software programs as well as various data. The memory 709 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 709 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.

The processor 710 is a control center of the first terminal, connects various parts of the entire first terminal using various interfaces and lines, and performs various functions of the first terminal and processes data by running or executing software programs and modules stored in the memory 709 and calling data stored in the memory 709, thereby performing overall monitoring of the first terminal. Processor 710 may include one or more processing units; preferably, the processor 710 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into processor 710.

The first terminal 700 may further include a power supply 711 (e.g., a battery) for supplying power to various components, and preferably, the power supply 711 may be logically connected to the processor 710 through a power management system, so as to implement functions of managing charging, discharging, and power consumption through the power management system.

In addition, the first terminal 700 includes some functional modules that are not shown, and are not described in detail herein.

Preferably, an embodiment of the present invention further provides a first terminal, including a processor 710, a memory 709, and a computer program stored in the memory 709 and capable of running on the processor 710, where the computer program, when executed by the processor 710, implements each process of the foregoing resource obtaining method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not described here again.

It should be noted that, in this embodiment, the first terminal 700 may be a first terminal according to any implementation manner in the method embodiment of the present invention, and any implementation manner of the first terminal in the method embodiment of the present invention may be implemented by the first terminal 700 in this embodiment, so as to achieve the same beneficial effects, and details are not repeated here.

Fig. 12 is a schematic diagram of a hardware structure of a second terminal for implementing various embodiments of the present invention, where the second terminal 800 includes, but is not limited to: a radio frequency unit 801, a network module 802, an audio output unit 803, an input unit 804, a sensor 805, a display unit 806, a user input unit 807, an interface unit 808, a memory 809, a processor 810, and a power supply 811. Those skilled in the art will appreciate that the configuration shown in fig. 12 does not constitute a limitation of the second terminal, which may include more or less components than those shown, or some components may be combined, or a different arrangement of components. In the embodiment of the present invention, the second terminal includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal, a wearable device, a pedometer, and the like.

The radio frequency unit 801 is configured to:

in case the second terminal does not obtain its secondary link resources to use for transmitting the secondary link feedback information, performing at least one of:

sending a sidelink resource request to the communication device;

Optionally, the radio frequency unit 801 is further configured to:

Optionally, the radio frequency unit 801 is specifically configured to, when a preset condition is met, execute at least one of the following:

sending a sidelink resource request to the communication device;

wherein the preset condition comprises at least one of:

the first configuration information received by radio frequency unit 801 does not include first secondary link resource indication information, where the first secondary link resource indication information is used to indicate a first secondary link resource used to send the secondary link feedback information;

the second configuration information received by the radio frequency unit 801 does not include second secondary link resource indication information, where the second secondary link resource indication information is used to indicate a second secondary link resource used to send the secondary link feedback information;

Optionally, the processor 810 is configured to:

determining that the second terminal needs to transmit the sidelink feedback information when at least one of the following conditions is met:

the second terminal activates a feedback function;

the radio frequency unit 801 is specifically configured to:

Optionally, when the step of sending the sidelink resource request to the communication device is executed, the radio frequency unit 801 includes at least one of:

time domain information of the sidelink resource;

frequency domain information of the sidelink resources;

coding information of the sidelink resource;

periodic information of sidelink resources;

relationship information of the secondary link resource and the PSSCH resource;

It should be understood that, in the embodiment of the present invention, the radio frequency unit 801 may be used for receiving and sending signals during a message sending and receiving process or a call process, and specifically, receives downlink data from a network-side device and then processes the received downlink data to the processor 810; in addition, the uplink data is sent to the network side equipment. In general, radio frequency unit 801 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. Further, the radio frequency unit 801 can also communicate with a network and other devices through a wireless communication system.

The second terminal provides the user with wireless broadband internet access through the network module 802, such as helping the user send and receive e-mails, browse webpages, access streaming media, and the like.

The audio output unit 803 may convert audio data received by the radio frequency unit 801 or the network module 802 or stored in the memory 809 into an audio signal and output as sound. Also, the audio output unit 803 may also provide audio output related to a specific function performed by the second terminal 800 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 803 includes a speaker, a buzzer, a receiver, and the like.

The input unit 804 is used for receiving an audio or video signal. The input Unit 804 may include a Graphics Processing Unit (GPU) 8041 and a microphone 8042, and the Graphics processor 8041 processes image data of a still picture or video obtained by an image capturing device (such as a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 806. The image frames processed by the graphics processor 8041 may be stored in the memory 809 (or other storage medium) or transmitted via the radio frequency unit 801 or the network module 802. The microphone 8042 can receive sound, and can process such sound into audio data. The processed audio data may be converted into a format output transmittable to a mobile communication network side device via the radio frequency unit 801 in the case of the phone call mode.

The second terminal 800 also includes at least one sensor 805 such as light sensors, motion sensors, and other sensors. Specifically, the light sensor includes an ambient light sensor that adjusts the brightness of the display panel 8061 according to the brightness of ambient light, and a proximity sensor that turns off the display panel 8061 and the backlight when the second terminal 800 moves to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), detect the magnitude and direction of gravity when stationary, and can be used to identify the second terminal attitude (such as horizontal and vertical screen switching, related games, magnetometer attitude calibration), vibration identification related functions (such as pedometer, tapping), and the like; the sensors 805 may also include fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc., which are not described in detail herein.

The display unit 806 is used to display information input by the user or information provided to the user. The Display unit 806 may include a Display panel 8061, and the Display panel 8061 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.

The user input unit 807 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the second terminal. Specifically, the user input unit 807 includes a touch panel 8071 and other input devices 8072. The touch panel 8071, also referred to as a touch screen, may collect touch operations by a user on or near the touch panel 8071 (e.g., operations by a user on or near the touch panel 8071 using a finger, a stylus, or any other suitable object or accessory). The touch panel 8071 may include two portions of a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 810, receives a command from the processor 810, and executes the command. In addition, the touch panel 8071 can be implemented by various types such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. In addition to the touch panel 8071, the user input unit 807 can include other input devices 8072. In particular, other input devices 8072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail herein.

Further, the touch panel 8071 can be overlaid on the display panel 8071, and when the touch panel 8071 detects a touch operation on or near the touch panel 8071, the touch operation is transmitted to the processor 810 to determine the type of the touch event, and then the processor 810 provides a corresponding visual output on the display panel 8061 according to the type of the touch event. Although the touch panel 8071 and the display panel 8061 are shown in fig. 9 as two separate components to implement the input and output functions of the second terminal, in some embodiments, the touch panel 8071 and the display panel 8061 may be integrated to implement the input and output functions of the second terminal, which is not limited herein.

The interface unit 808 is an interface for connecting an external device to the second terminal 800. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 808 may be used to receive input (e.g., data information, power, etc.) from an external device and transmit the received input to one or more elements within the second terminal 800 or may be used to transmit data between the second terminal 800 and the external device.

The memory 809 may be used to store software programs as well as various data. The memory 809 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 809 can include high speed random access memory, and can also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.

The processor 810 is a control center of the second terminal, connects various parts of the entire second terminal using various interfaces and lines, and performs various functions of the second terminal and processes data by running or executing software programs and modules stored in the memory 809 and calling data stored in the memory 809, thereby integrally monitoring the second terminal. Processor 810 may include one or more processing units; preferably, the processor 810 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into processor 810.

The second terminal 800 may further include a power supply 811 (e.g., a battery) for supplying power to various components, and preferably, the power supply 811 may be logically connected to the processor 810 through a power management system, so as to manage charging, discharging, and power consumption management functions through the power management system.

In addition, the second terminal 800 includes some functional modules that are not shown, and thus, the detailed description thereof is omitted.

Preferably, an embodiment of the present invention further provides a second terminal, which includes a processor 810, a memory 809, and a computer program stored in the memory 809 and capable of running on the processor 810, where the computer program, when executed by the processor 810, implements each process of the foregoing resource obtaining method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not described here again.

It should be noted that, in this embodiment, the second terminal 800 may be a second terminal according to any implementation manner in the method embodiment of the present invention, and any implementation manner of the second terminal in the method embodiment of the present invention may be implemented by the second terminal 800 in this embodiment, so as to achieve the same beneficial effects, and details are not repeated here.

An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements the processes of the above embodiments corresponding to the first terminal or the second terminal, and can achieve the same technical effects, and in order to avoid repetition, the details are not repeated here. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A method for resource acquisition, the method comprising:

sending a sidelink resource request to the communication device;

wherein the secondary link resource request is for requesting secondary link resources for transmitting the secondary link feedback information;

the method further comprises the following steps:

the first terminal activates a feedback function;

the first terminal detects that at least one terminal is located in a communication range needing to send the sidelink feedback information or enters the communication range needing to send the sidelink feedback information, and the at least one terminal comprises the second terminal;

the communication equipment comprises at least one of network side equipment and a third terminal;

and if the first terminal is allocated with resources by the third terminal, the first terminal sends the sidelink resource request to the third terminal.

2. The method of claim 1, further comprising:

the first terminal receives a system message or a dedicated signaling sent by the communication equipment, wherein the system message or the dedicated signaling comprises configuration information used for secondary link transmission.

3. The method of claim 2, wherein the first terminal does not obtain the sidelink resources used by the second terminal to transmit the sidelink feedback information, comprising:

4. The method according to any one of claims 1 to 3,

if the first terminal is in an RRC idle state or an RRC inactive state and resources are not allocated by other terminals, the first terminal sends the RRC connection establishment request or the RRC connection recovery request to network side equipment;

and if the first terminal is in an RRC (radio resource control) connected state and resources are not allocated by other terminals, the first terminal sends the sidelink resource request to network side equipment.

5. The method according to any of claims 1 to 3, wherein the first terminal sends a sidelink resource request to a communication device, comprising at least one of:

the first terminal sends first secondary link terminal information to the communication equipment, wherein the first secondary link terminal information carries the secondary link resource request;

the first terminal sends a first Buffer Status Report (BSR) to the communication equipment, wherein the first BSR carries the sidelink resource request;

6. The method according to any of claims 1 to 3, wherein the secondary link feedback information comprises at least one of hybrid automatic repeat request, HARQ, feedback information for a secondary link and channel state information, CSI, feedback information for a secondary link.

7. The method according to any of claims 1 to 3, wherein the secondary link resources comprise at least one of physical secondary link feedback channel (PSFCH) resources and physical secondary link shared channel (PSSCH) resources.

8. The method of claim 3, wherein the secondary link resource indication information comprises at least one of:

time domain information of the sidelink resource;

frequency domain information of the sidelink resources;

coding information of the sidelink resource;

periodic information of sidelink resources;

relationship information of the secondary link resource and the PSSCH resource;

9. A method for resource acquisition, the method comprising:

sending a sidelink resource request to the communication device;

the method further comprises the following steps:

the second terminal activates a feedback function;

the second terminal receives a secondary link feedback activation instruction;

the communication device comprises at least one of a network side device, a first terminal and a third terminal, wherein the first terminal is a terminal which needs the second terminal to send the sidelink feedback information;

and if the second terminal is allocated with resources by the third terminal, the second terminal sends the sidelink resource request to the third terminal.

10. The method of claim 9, further comprising at least one of:

the second terminal receives a system message or a dedicated signaling sent by the communication equipment, wherein the system message or the dedicated signaling comprises first configuration information used for secondary link transmission;

11. The method of claim 10, wherein the secondary link resources that are not used by the second terminal to transmit the secondary link feedback information are not obtained by the second terminal, and wherein the secondary link resources comprise at least one of:

12. The method according to claim 9 or 10,

if the second terminal is in an RRC idle state or an RRC inactive state and resources are not allocated by other terminals, the second terminal sends the RRC connection establishment request or the RRC connection recovery request to a network side device;

if the second terminal is in an RRC (radio resource control) connected state and resources are not allocated by other terminals, the second terminal sends the sidelink resource request to network side equipment;

and if the second terminal is allocated with resources by the first terminal, the second terminal sends the sidelink resource request to the first terminal.

13. The method according to claim 9 or 10, wherein the second terminal sends a sidelink resource request to the communication device, comprising at least one of:

the second terminal sends a first Buffer Status Report (BSR) to the communication equipment, wherein the first BSR carries the sidelink resource request;

14. The method according to claim 9 or 10, wherein the secondary link feedback information comprises at least one of hybrid automatic repeat request, HARQ, feedback information for a secondary link and channel state information, CSI, feedback information for a secondary link.

15. The method according to claim 9 or 10, wherein the secondary link resources comprise at least one of physical secondary link feedback channel, PSFCH, resources and physical secondary link shared channel, PSSCH, resources.

16. The method of claim 10, wherein the secondary link resource indication information comprises at least one of:

time domain information of the sidelink resource;

frequency domain information of the sidelink resources;

coding information of the sidelink resource;

periodic information of sidelink resources;

relationship information of the secondary link resource and the PSSCH resource;

17. A first terminal, comprising:

sending a sidelink resource request to the communication device;

the first terminal activates a feedback function;

18. The first terminal of claim 17,

the sending module is specifically configured to:

and if the first terminal is in an RRC (radio resource control) connected state and resources are not allocated by other terminals, sending the sidelink resource request to network side equipment.

19. A second terminal, comprising:

sending a sidelink resource request to the communication device;

the second terminal activates a feedback function;

the second terminal receives a secondary link feedback activation instruction;

20. The second terminal of claim 19,

the sending module is specifically configured to:

and if the second terminal is allocated with resources by the first terminal, sending the sidelink resource request to the first terminal.

21. A first terminal, comprising: memory, a processor and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps in the resource acquisition method according to any one of claims 1 to 8.

22. A second terminal, comprising: memory, processor and computer program stored on the memory and executable on the processor, which when executed by the processor implements the steps in the resource acquisition method according to any of claims 9 to 16.

23. A computer-readable storage medium, having stored thereon a computer program which, when being executed by a processor, carries out the steps of the resource acquisition method according to any one of claims 1 to 8; or implementing the steps in the resource acquisition method according to any of claims 9 to 16.