CN118119018A

CN118119018A - Communication method and device

Info

Publication number: CN118119018A
Application number: CN202211524815.0A
Authority: CN
Inventors: 高翔; 张鹏; 刘烨; 丁梦颖
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2022-11-30
Filing date: 2022-11-30
Publication date: 2024-05-31
Also published as: WO2024114564A1

Abstract

The application provides a communication method and a device, wherein the method comprises the following steps: the method comprises the steps that terminal equipment receives a first network signaling value indicated by network equipment, information of a first frequency band and a first frequency resource set used for initial access in the first frequency band; the first network signaling value is a network signaling value with all frequency bands being configurable, and the first frequency band is a frequency band used by a first cell governed by the network equipment; the terminal equipment accesses to the first cell when determining that the second frequency resource set supporting the first network signaling value, the first frequency band communication and the first frequency resource set for uplink transmission in the first frequency band are non-empty, so that the compatibility of the network equipment side to different terminal equipment can be effectively improved, and more terminal equipment with access capability can be allowed to effectively access to the cell governed by the network equipment.

Description

Communication method and device

Technical Field

The present application relates to the field of communications technologies, and in particular, to a communications method and apparatus.

Background

At present, the communication system needs to be deployed on a frequency band (band) which is authorized to be used by an operator, so that in order to reasonably use spectrum resources, the service is ensured not to interfere with each other when using the spectrum resources, and in the prior art, the frequency band used by the communication system is divided into frequency ranges.

In some communication systems, before a network device performs service communication with a terminal device, the network device may send a capability query request to the terminal device, after the terminal device receives the capability query request, the terminal device may carry its own supported frequency band information (for example, a frequency band number) in a signaling and report the information to the network device, and the network device determines a frequency band supported by the terminal device according to the supported frequency band information reported by the terminal device, and configures an operating frequency point for the terminal device from a frequency spectrum range corresponding to the frequency band, so that the terminal device performs service communication with the network device on the operating frequency point.

In order to protect certain special frequency bands, corresponding radio frequency indexes are specified for the frequency bands in the prior art, and before the terminal equipment reports the supported frequency band information and successfully accesses the network, various measurements are required to be carried out on uplink transmission to verify whether the specified radio frequency indexes are met.

In the current measurement scheme, a network signaling value (network signaling value, NS value) is used in a protocol to indicate a radio frequency index to be implemented by a terminal device on a certain frequency band, the network device configures a standardized NS value of the frequency band for the certain frequency band, then the NS value is sent to the terminal device, after receiving the NS value from the network device, the terminal device matches the NS value with the NS value supported by the terminal device, if so, the terminal device can initially access a cell managed by the network device on the corresponding frequency band, and if not, the terminal device cannot access the cell managed by the network device. Through the measurement scheme, the network equipment can screen out terminal equipment which has specific frequency bands and can meet corresponding radio frequency indexes.

However, in the above measurement scheme, the network device indicates an NS value of a certain frequency band to the terminal device side, and there are some cells in which the terminal device cannot successfully identify or match the NS value indicated by the network device, and thus cannot access the network device administered cell, so it is currently needed to propose a communication method that can effectively promote compatibility of the network device side to different terminal devices, and can allow more terminal devices with access capability to effectively access the network device administered cell.

Disclosure of Invention

The application provides a communication method and a communication device, which can effectively improve the compatibility of a network device side to different terminal devices.

In a first aspect, the present application provides a communication method, which may be performed by a terminal device, or may be performed by a component (such as a processor, a chip, or a chip system) of the terminal device, which is not specifically limited in this aspect of the present application. The method specifically comprises the following steps: the method comprises the steps that terminal equipment receives a first network signaling value indicated by network equipment, information of a first frequency band and a first frequency resource set used for initial access in the first frequency band; the first network signaling value is a network signaling value used by all frequency bands, and the first frequency band is a frequency band used by a first cell governed by the network equipment; the terminal device accesses to the first cell when determining that a second set of frequency resources supporting the first network signaling value, supporting the first frequency band communication and the first set of frequency resources, and performing uplink transmission in the first frequency band is non-null with the first set of frequency resources.

In the scheme of the application, the network equipment indicates the first network signaling value to the terminal equipment, and because the first network signaling value is the network signaling value used by all frequency bands, the terminal equipment communicating on all the frequency bands can possibly access the cell governed by the network equipment, thereby avoiding the problem that some types of terminal equipment cannot access the cell governed by the network equipment because the network signaling value indicated by the network equipment is not supported; in addition, the network device indicates information of a first frequency band and a first frequency resource set for initial access in the first frequency band to the terminal device, where the first frequency band is a frequency band used by a first cell governed by the network device, and when the terminal device determines that communication using the first frequency band is supported and the first frequency resource set is supported, and there is a frequency resource overlapping between a second frequency resource set for uplink transmission in the first frequency band and the first frequency resource set for initial access in the first frequency band indicated by the network device, the terminal device can access the first cell governed by the network device. By the method, more terminal equipment with access capability can be allowed to effectively access cells governed by the network equipment, so that the compatibility of the network equipment side to different terminal equipment can be improved, in addition, the network equipment can also determine the appropriate terminal equipment access for any cell (such as a first cell) governed by the network equipment, and the terminal equipment accessed by the network equipment side can be ensured to be normal in communication.

In one embodiment, the method further comprises: the terminal device does not access the first cell when it is determined that any one of the following conditions is not satisfied:

(1) Supporting the first network signaling value; (2) supporting communication using the first frequency band; (3) supporting use of the first set of frequency resources; (4) And the second frequency resource set for uplink transmission in the first frequency band and the first frequency resource set are non-null.

By the embodiment, the terminal equipment which does not have the access capability of the first cell and the terminal equipment which cannot normally communicate in the first cell can be effectively prevented from accessing the first cell.

In one embodiment, the access of the terminal device to the first cell includes: and the terminal equipment performs uplink initial access to the first cell on the frequency resource set overlapped between the second frequency resource set and the first frequency resource set.

By the embodiment, the terminal equipment can be ensured to successfully and initially access the first cell by using the proper access resource, so that effective communication is carried out between the terminal equipment and the network equipment.

In one embodiment, the method further comprises: after the terminal equipment is successfully accessed into the first cell, a third message can be sent to the network equipment, wherein the third message is used for indicating information of at least one sub-frequency band supported by the terminal equipment, the at least one sub-frequency band is a sub-frequency band in the first frequency band, and the number of frequency resources used for uplink transmission in the at least one sub-frequency band is not less than the number of frequency resources overlapped between the second frequency resource set and the first frequency resource set.

By the embodiment, the network equipment side can determine at least one sub-band supported by the terminal equipment in the first frequency band, and the network equipment side can further take the sub-band supported by the terminal equipment as a capability (or characteristic) of the sub-band for distinguishing between the terminal equipment, so that reasonable and sufficient scheduling can be performed for the terminal equipment.

In one embodiment, how the terminal device reports the information of the at least one sub-band supported by the terminal device to the network device through the third message may include, but is not limited to, the following ways:

Mode one: the third message includes at least one predefined number, each predefined number indicating one of the at least one sub-band. After the network device receives the third message, the at least one sub-band supported by the terminal device can be effectively and accurately determined according to the at least one predefined number therein.

Mode two: the third message includes at least one pair of first indication information and second indication information, and each pair of the first indication information and the second indication information indicates an upper limit value and a lower limit value of one of the at least one sub-band respectively. After the network device receives the third message, the network device indicates the upper limit value and the lower limit value of the corresponding one of the sub-bands according to each pair of the first indication information and the second indication information, so that the range of the corresponding sub-band can be effectively and accurately determined.

Mode three: the third message includes at least one pair of third indication information and fourth indication information, and each pair of third indication information and fourth indication information indicates a lower limit value and a length value of one of the at least one sub-band. After the network device receives the third message, the network device indicates the lower limit value and the length value of the corresponding one of the sub-bands according to each pair of the third indication information and the fourth indication information, so that the range of the corresponding sub-band can be effectively and accurately determined.

Through the above modes, the terminal equipment can effectively and flexibly report the information of the sub-frequency band which can be supported in the first frequency band to the network equipment.

In one embodiment, the terminal device receives a first network signaling value indicated by a network device, information of a first frequency band, and a first set of frequency resources for initial access in the first frequency band, including: the terminal device receives a first message and a second message sent by the network device, wherein the first message indicates the first network signaling value, and the second message indicates the information of the first frequency band and a first frequency resource set used for initial access in the first frequency band. By means of the embodiment, the first network signaling value, the information of the first frequency band and the first set of frequency resources for initial access within the first frequency band can be effectively indicated to the terminal device.

Illustratively, the first message may be NR-MultiBandInfo- { FreqBandIndicatorNR, NR-NS-PmaxList }, and the second message may be UplinkConfigCommonSIB- { locationAndBandwidth, offsetToCarrier }. The first network signaling value may also be denoted as NS value.

In the embodiment of the application, the network equipment can respectively send the first message and the second message to the terminal equipment in a broadcasting mode; or the network equipment can also send a message to the terminal equipment in a broadcasting mode, wherein the message carries the first message and the second message; or the network device may send the first message and the second message to the terminal device in an indirect manner, e.g. the network device sends the first message and the second message to other communication means (other terminal device or network device), which forwards the first message and the second message to the terminal device by the other communication. Therefore, the specific manner and communication path of the network device indicating the first network signaling value and the information of the first frequency band and the first frequency resource set for initial access in the first frequency band to the terminal device are not specifically limited.

In a second aspect, the present application provides a communication method, which may be performed by a network device, or may be performed by a component (such as a processor, a chip, or a chip system) of the network device, which is not specifically limited in this aspect of the present application. The method specifically comprises the following steps: the network equipment determines a first network signaling value, information of a first frequency band and a first frequency resource set used for initial access in the first frequency band; the first network signaling value is a network signaling value with all frequency bands being configurable, and the first frequency band is a frequency band used by a first cell governed by the network equipment; the network device indicates to the terminal device the first network signaling value, the information of the first frequency band, and a first set of frequency resources within the first frequency band for initial access. The network device accepts the terminal device to access into the first cell, wherein the terminal device accesses the first cell when determining that the first network signaling value is supported, the first frequency band communication and the first frequency resource set are supported, and the second frequency resource set and the first frequency resource set for uplink transmission in the first frequency band are non-empty.

In an embodiment of the present application, the network device may be an access network device (e.g., a base station).

In the scheme of the application, the network equipment indicates the first network signaling value to the terminal equipment, and because the first network signaling value is the network signaling value used by all frequency bands, the terminal equipment communicating on all the frequency bands can possibly access the cell governed by the network equipment, thereby avoiding the problem that some types of terminal equipment cannot access the cell governed by the network equipment because the network signaling value indicated by the network equipment is not supported; in addition, the network device indicates information of a first frequency band and a first frequency resource set for initial access in the first frequency band to the terminal device, wherein the first frequency band is a frequency band used by a first cell governed by the network device, when the terminal device determines that communication and use of the first frequency band are supported, and overlapping frequency resources exist between a second frequency resource set for uplink transmission in the first frequency band and a first frequency resource set for initial access in the first frequency band indicated by the network device, the terminal device accesses the first cell governed by the network device, and accordingly, the network device accepts the terminal device to access the first cell. By the implementation method, more terminal equipment with access capability can be allowed to effectively access cells governed by the network equipment, so that the compatibility of the network equipment side to different terminal equipment can be improved, in addition, the network equipment can also determine the appropriate terminal equipment access for any cell (such as a first cell) governed by the network equipment, and the terminal equipment accessed by the network equipment side can be ensured to be normal in communication.

In one embodiment, the network device indicates to the terminal device the first network signaling value, the information of the first frequency band, and a first set of frequency resources for initial access within the first frequency band, including: the network device sends a first message and a second message to the terminal device, the first message indicating the first network signaling value, the second message indicating information of the first frequency band, and a first set of frequency resources for initial access within the first frequency band. By means of the embodiment, the first network signaling value, the information of the first frequency band and the first set of frequency resources for initial access within the first frequency band can be effectively indicated to the terminal device.

In one embodiment, the method further comprises: after the network device accepts the terminal device to access to the first cell, the network device may further receive a third message from the terminal device, where the third message is used to indicate information of at least one sub-band supported by the terminal device, and the at least one sub-band is a sub-band in the first frequency band; the number of frequency resources used for uplink transmission in the at least one sub-band is not less than the number of frequency resources overlapping between the second set of frequency resources and the first set of frequency resources.

By means of the embodiment, the network device side can effectively determine at least one sub-band supported by the terminal device in the first frequency band, and the network device side can further take the sub-band supported by the terminal device as a capability (or characteristic) of the sub-band to be used for distinguishing between the terminal devices, so that reasonable and sufficient scheduling can be performed for the terminal devices.

In one embodiment, the format of the third message may include, but is not limited to, any of the following:

In the above several ways, the network device may effectively determine the sub-band supported by the terminal device in the first frequency band.

In a third aspect, embodiments of the present application further provide a communications apparatus, which may be configured to perform the method of the first aspect, where the apparatus may be a terminal device, a component (e.g. a chip, or a system on a chip, or a circuit) in the terminal device, or an apparatus that can be used in cooperation with the terminal device.

In a possible implementation manner, the apparatus may include modules or units corresponding to each other in a one-to-one manner to perform the method/operation/step/action described in the first aspect, where the modules or units may be hardware circuits, or software, or implemented by using hardware circuits in combination with software. In one possible implementation, the communication apparatus may include a processing module and a communication module. The processing module is used for calling the communication module to execute the receiving and/or transmitting function.

In a possible implementation manner, the communication device includes a communication unit and a processing unit; the processing unit may be configured to invoke the communication unit to perform a function of receiving and/or transmitting; the communication unit is configured to receive a first network signaling value indicated by a network device, information of a first frequency band, and a first frequency resource set used for initial access in the first frequency band; the first network signaling value is a network signaling value with all frequency bands being configurable, and the first frequency band is a frequency band used by a first cell governed by the network equipment; the processing unit is configured to access, when it is determined that the second set of frequency resources supporting the first network signaling value, supporting the first frequency band communication and the first set of frequency resources, and performing uplink transmission in the first frequency band is not null, to the first cell through the communication unit.

In a possible implementation manner, the processing unit is further configured to not access the first cell when any one of the following conditions is determined to be not satisfied: supporting the first network signaling value; supporting communication using the first frequency band; supporting use of the first set of frequency resources; and the second frequency resource set for uplink transmission in the first frequency band and the first frequency resource set are non-null.

In a possible implementation manner, the communication unit is specifically configured to perform uplink initial access to the first cell on a frequency resource set overlapped between the second frequency resource set and the first frequency resource set when accessing to the first cell.

In a possible implementation manner, the communication unit is further configured to send a third message to the network device, where the third message is used to indicate information of at least one sub-band supported by the terminal device, the at least one sub-band is a sub-band in the first frequency band, and the number of frequency resources used for uplink transmission in the at least one sub-band is not less than the number of frequency resources overlapped between the second frequency resource set and the first frequency resource set.

In a possible implementation manner, the third message includes at least one predefined number, and each predefined number is used to indicate one sub-band in the at least one sub-band.

In another possible implementation manner, the third message includes at least one pair of first indication information and second indication information, where each pair of first indication information and second indication information indicates an upper limit value and a lower limit value of one of the at least one sub-frequency band, respectively.

In still another possible implementation manner, the third message includes at least one pair of third indication information and fourth indication information, where each pair of the third indication information and the fourth indication information indicates a lower limit value and a length value of one of the at least one sub-frequency band, respectively.

In a possible implementation manner, the communication unit is specifically configured to receive, when receiving a first network signaling value indicated by a network device, information of a first frequency band, and a first set of frequency resources for initial access in the first frequency band, a first message and a second message sent by the network device, where the first message indicates the first network signaling value, and the second message indicates the information of the first frequency band, and the first set of frequency resources for initial access in the first frequency band.

In a fourth aspect, embodiments of the present application also provide a communications apparatus, which may be used to perform the method of the second aspect, and the communications apparatus may be a network device, a component (e.g. a chip, or a system on a chip, or a circuit) in a network device, or an apparatus that can be used in cooperation with the network device.

In a possible implementation manner, the communication device may include modules or units corresponding to each other in a one-to-one manner to perform the method/operation/step/action described in the second aspect, where the modules or units may be hardware circuits, or software, or a combination of hardware circuits and software implementation. In one possible implementation, the communication apparatus may include a processing module and a communication module. The processing module is used for calling the communication module to execute the receiving and/or transmitting function.

In a possible implementation manner, the communication device includes a communication unit and a processing unit; the processing unit may be configured to invoke the communication unit to perform a function of receiving and/or transmitting; the processing unit is configured to determine a first network signaling value, information of a first frequency band, and a first frequency resource set used for initial access in the first frequency band; the first network signaling value is a network signaling value with all frequency bands being configurable, and the first frequency band is a frequency band used by a first cell governed by the network equipment; the communication unit is configured to indicate the first network signaling value, the information of the first frequency band, and a first frequency resource set used for initial access in the first frequency band to a terminal device, and accept the terminal device to access to the first cell, where the terminal device accesses the first cell when determining that the first network signaling value is supported, and when determining that the first frequency band is supported, the terminal device uses the first frequency band to communicate with the first frequency resource set, and when the second frequency resource set and the first frequency resource set that are used for uplink transmission in the first frequency band are non-null.

In a possible implementation manner, the communication unit is further configured to receive a third message from the terminal device after accepting that the terminal device accesses the first cell, where the third message is used to indicate information of at least one sub-band supported by the terminal device, and the at least one sub-band is a sub-band in the first frequency band. The number of frequency resources used for uplink transmission in the at least one sub-band is not less than the number of frequency resources overlapped between the second set of frequency resources and the first set of frequency resources.

In a possible implementation manner, when the communication unit indicates the first network signaling value, the information of the first frequency band, and the first frequency resource set used for initial access in the first frequency band to a terminal device, the communication unit is specifically configured to: and a first message and a second message sent to the terminal equipment, wherein the first message indicates the first network signaling value, and the second message indicates the information of the first frequency band and a first frequency resource set used for initial access in the first frequency band.

In a fifth aspect, embodiments of the present application provide a computer storage medium having stored therein a software program which, when read and executed by one or more processors, performs the method provided by the first aspect or any one of the possible embodiments, or performs the method provided by the second aspect or any one of the possible embodiments.

In a sixth aspect, embodiments of the present application provide a computer program product comprising instructions which, when run on a computer, cause the computer to perform the method provided by the first aspect or any one of the possible embodiments, or cause the computer to perform the method provided by the second aspect or any one of the possible embodiments.

In a seventh aspect, embodiments of the present application provide a chip system, where the chip system includes a processor for supporting a device to implement the functions referred to in the first aspect, or for supporting a device to implement the functions referred to in the second aspect.

In one possible design, the system on a chip also includes memory to hold the necessary program instructions and data. The chip system can be composed of chips, and can also comprise chips and other discrete devices.

In an eighth aspect, in an embodiment of the present application, there is further provided a chip system, where the chip system includes a processor and an interface, where the interface is configured to obtain a program or an instruction, and the processor is configured to call the program or the instruction to implement or support the device to implement the function related to the first aspect. Or the processor is configured to invoke the program or instructions to implement or support the device to implement the functionality involved in the second aspect.

In one possible design, the chip system further includes a memory for storing program instructions and data necessary for the terminal device. The chip system can be composed of chips, and can also comprise chips and other discrete devices.

A ninth aspect provides a communication system comprising a terminal device as claimed in the first aspect and a network device as claimed in the second aspect.

The technical effects achieved by the third aspect to the ninth aspect or any possible implementation manner of the third aspect to the ninth aspect may refer to the technical effects achieved by the first aspect and the second aspect or any possible implementation manner of the first aspect or any possible implementation manner of the second aspect, and the description is not repeated here.

Drawings

Fig. 1 is a schematic diagram of a communication system architecture to which a communication method according to an embodiment of the present application may be applied;

FIG. 2A is a schematic flow chart of a measurement scheme at present;

Fig. 2B is a schematic diagram of the frequency ranges supported by the terminal device at different regional phases;

fig. 3 is a schematic flow chart of a communication method according to an embodiment of the present application;

Fig. 4 is a flowchart of a specific embodiment of a communication method according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of a communication device according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of a communication device according to an embodiment of the present application;

Fig. 7 is a schematic diagram of a device structure of a chip according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application.

Fig. 1 is a schematic diagram of a communication system architecture to which a communication method according to an embodiment of the present application may be applied. As shown in fig. 1, the communication system 1000 comprises a radio access network 100 and a core network 200, and optionally the communication system 1000 may further comprise the internet 300. The radio access network 100 may include at least one radio access network device, such as 110a and 110b in fig. 1, and may also include at least one terminal device, such as 120a-120j in fig. 1. Wherein 110a is a base station, 110b is a micro station, 120a, 120e, 120f and 120j are mobile phones, 120b is an automobile, 120c is an oiling machine, 120d is a home access node (home access point, HAP) arranged indoors or outdoors, 120g is a notebook computer, 120h is a printer, and 120i is an unmanned aerial vehicle.

In fig. 1, the terminal device may be connected to a radio access network device, and the radio access network device may be connected to a core network device in the core network. The core network device and the radio access network device may be separate physical devices, or may integrate the functions of the core network device and the logic functions of the radio access network device on the same physical device, or may integrate the functions of part of the core network device and part of the radio access network device on one physical device. The terminal device and the radio access network device may be connected to each other by a wired or wireless method. Fig. 1 is only a schematic diagram, and other devices may be included in the communication system, for example, a wireless relay device and a wireless backhaul device may also be included, which are not shown in fig. 1.

The radio access network device and the terminal device are described below.

(1) Radio access network device

The radio access network device may also be referred to as an access network device, which may be a base station, an evolved NodeB (eNodeB), a transmission and reception point (transmission reception point, TRP), a next generation NodeB (gNB) in a fifth generation (5th generation,5G) mobile communication system, a base station in a sixth generation (6th generation,6G) mobile communication system, a base station in a future mobile communication system, or an access node in a wireless fidelity (WIRELESS FIDELITY, wiFi) system, etc.; the present application may also be a module or unit that performs a function of a base station part, for example, a Central Unit (CU) or a Distributed Unit (DU). The access network device may be a macro base station (e.g. 110a in fig. 1), a micro base station or an indoor station (e.g. 110b in fig. 1), a relay node or a donor node, etc. The specific technology and the specific equipment form adopted by the access network equipment are not limited.

In the embodiment of the present application, the means for implementing the function of the access device may be an access network device; or may be a device, such as a system-on-a-chip, capable of supporting the access network equipment to perform this function, which may be installed in the access network equipment. The chip system may be composed of a chip or may include a chip and other discrete devices. In the technical solution provided in the embodiment of the present application, the device for implementing the function of the access network device is an access network device, which is described in the technical solution provided in the embodiment of the present application.

(2) Terminal equipment

The terminal device may also be referred to as a terminal, user Equipment (UE), mobile station, mobile terminal, etc. The terminal device may be widely applied to various scenes, for example, device-to-device (D2D), vehicle-to-device (vehicle to everything, V2X) communication, machine-type communication (MTC), internet of things (internet of things, IOT), virtual reality, augmented reality, industrial control, autopilot, telemedicine, smart grid, smart furniture, smart office, smart wear, smart transportation, smart city, and the like. The terminal equipment can be a mobile phone, a tablet personal computer, a computer with a wireless receiving and transmitting function, a wearable device, a vehicle, an unmanned aerial vehicle, a helicopter, an airplane, a ship, a robot, a mechanical arm, intelligent household equipment and the like. The embodiment of the application does not limit the specific technology and the specific equipment form adopted by the terminal equipment.

In the embodiment of the present application, the device for implementing the function of the terminal device may be the terminal device; or a device, such as a chip system, capable of supporting the terminal device to realize the function, which may be installed in the terminal device. In the technical solution provided in the embodiment of the present application, the device for implementing the function of the terminal device is an example of the terminal device, and the technical solution provided in the embodiment of the present application is described.

In addition, the same terminal device or access network device can provide different functions in different application scenarios. For example, the handset in fig. 1 includes 120a, 120e, 120f, and 120j. The mobile phone 120a can access the base station 110a, connect with the automobile 120b, communicate with the mobile phone 120e directly and access to the HAP; the mobile phone 120e can access the HAP and communicate directly with the mobile phone 120 a; the mobile phone 120f can be connected to the micro station 110b, the notebook computer 120g and the printer 120h; the cell phone 120j may control the drone 120i.

The roles of the access network device and the terminal device may be relative. For example, the helicopter or drone 120i in fig. 1 may be configured as a mobile base station, with terminal device 120i being a base station for those terminal devices 120j that access the radio access network 100 through 120 i; but for base station 110a 120i is a terminal device, i.e. communication between 110a and 120i is via a wireless air interface protocol. Of course, communication between 110a and 120i may be performed via an interface protocol between base stations, and in this case, 120i is also a base station with respect to 110 a. Thus, both the radio access network and the terminal device may be collectively referred to as a communication apparatus, 110a and 110b in fig. 1 may be referred to as a communication apparatus having a base station function, and 120a-120j in fig. 1 may be referred to as a communication apparatus having a terminal device function.

The access network device and the terminal device may be fixed in location or may be mobile. The access network equipment and the terminal equipment can be deployed on land, including indoor or outdoor, handheld or vehicle-mounted; the device can be deployed on the water surface; but also on aerial planes, balloons and satellites. The embodiment of the application does not limit the application scene of the access network equipment and the terminal equipment.

Communication can be carried out between the access network equipment and the terminal equipment, between the access network equipment and between the terminal equipment and the terminal equipment through the authorized spectrum, communication can be carried out through the unlicensed spectrum, and communication can be carried out through the authorized spectrum and the unlicensed spectrum at the same time; communication may be performed through a frequency spectrum of 6 gigahertz (GHz) or less, communication may be performed through a frequency spectrum of 6GHz or more, and communication may be performed using a frequency spectrum of 6GHz or less and a frequency spectrum of 6GHz or more simultaneously. The embodiment of the application does not limit the spectrum resources used by the wireless communication.

The communication system illustrated in fig. 1 may support various radio access technologies (radio access technology, RAT), for example, the communication system illustrated in fig. 1 may be a fourth generation (4th generation,4G) communication system (which may also be referred to as a long term evolution (long term evolution, LTE) communication system), a 5G communication system (which may also be referred to as a New Radio (NR) communication system), or a future-oriented evolution system.

The communication system and the service scenario described in the embodiments of the present application are for more clearly describing the technical solution of the embodiments of the present application, and do not constitute a limitation on the technical solution provided by the embodiments of the present application, and those skilled in the art can know that, with the evolution of the communication system and the appearance of a new service scenario, the technical solution provided by the embodiments of the present application is applicable to similar technical problems.

The following explains the related technical features related to the embodiments of the present application. It should be noted that these explanations are for easier understanding of the embodiments of the present application, and should not be construed as limiting the scope of protection claimed by the present application.

Frequency Band (Frequency Band):

As is well known, in order to reasonably utilize spectrum resources, the spectrum resources of a communication system are generally divided into a plurality of frequency bands, and each frequency band is uniquely numbered, and each frequency band corresponds to a specific frequency range, so that the mobile communication system can be deployed on a frequency band authorized to be used by an operator. For example, in a long term evolution (long term evolution, LTE) system, the frequency range of band 38 is 2570MHz to 2620MHz, and the frequency range of band 41 is 2496MHz to 2690MHz; in the new radio, NR, system, band n38 has a frequency range of 2570MHz to 2620MHz and band n41 has a frequency range of 2496MHz to 2690MHz. In addition, according to the frequency band division rule, for a certain frequency point, the frequency point may be covered by a plurality of frequency bands. For example, in an LTE system, 2580MHz frequency points are covered by both band 38 and band 41.

For each band, there are an upper frequency limit and a lower frequency limit, and the upper frequency limit and the lower frequency limit of the band are related to a duplex mode (duplex mode) of the band, where the duplex mode of the band may mainly include the following:

(a) Time division duplex (time division duplex, TDD) frequency band: the upper and lower limits of the uplink frequency in the frequency band of the duplex mode are the same as the upper and lower limits of the downlink frequency.

(B) Frequency division duplex (frequency division duplex, FDD) frequency band: the uplink frequency and the downlink frequency in the frequency band of the duplex mode are not overlapped, namely, the uplink frequency and the downlink frequency in the frequency band respectively have an upper limit and a lower limit which are respectively corresponding.

(C) Supplementary uplink (supplimentary uplink, SUL)/downlink (supplementary downlink, SDL) band: for SUL frequency band, only uplink frequency exists, and corresponding upper limit and lower limit; for the SDL band, there is only a downstream frequency, and corresponding upper and lower limits.

Taking the NR protocol 38.101-1 as an example, it lists the frequency band of the entire Frequency Range (FR) 1 currently standardized by 3 GPP.

Network signaling value (network signaling value, NS value):

typically, network signaling values NS value are configured for operators, each network signaling value corresponds to several specific evolved universal mobile telecommunications system (universal moblle telecommunications system, UMTS) terrestrial radio access (E-UTRA) bands (bands), and the main purpose is to control the inter-network adjacent channel interference, so that more restrictions need to be put on the terminal device, such as different network signaling values correspond to different maximum power margins allowed for the terminal device to transmit. In addition, in the prior art, the spectrum organization sets a series of legal requirements in consideration of protection or other reasons of certain special frequency bands, and maps the requirements to radio frequency indexes, before the terminal equipment declares that the terminal equipment supports a certain frequency band and successfully accesses the network, the terminal equipment needs to pass a test to determine whether the radio frequency indexes are met, and in the existing protocol, the radio frequency indexes which the terminal equipment needs to realize on the certain frequency band are indicated by a network signaling value NS value.

From the perspective of the network device side, the network device side only needs to issue the network signaling value NS value to the terminal device, and the terminal device judges and executes corresponding follow-up actions based on the network signaling value NS value.

For example, the operator may determine, according to the entire network environment, an NS value (the NS value is associated with E-UTRABand) that should be issued by a certain cell, and then broadcast, by a network device (such as a base station eNB), the NS value to terminal devices in a coverage area through a broadcast system message, for example, where the system message carries a parameter that may represent the NS value; after the terminal device analyzes the parameter from the system message, it can adjust its maximum transmitting power based on the parameter and transmit signals according to the spectrum template requirement.

Frequency band based communication:

in the communication system shown in fig. 1, before the network device performs service communication with the terminal device, the network device may send a capability query request to the terminal device, after the terminal device receives the capability query request, the terminal device may carry information (such as a frequency band number) of a frequency band supported by itself to report to the network device in a signaling, and the network device determines the frequency band supported by the terminal device according to the supported frequency band information reported by the terminal device, and configures a working frequency point for the terminal device from a frequency spectrum range corresponding to the frequency band, so that the terminal device performs service communication with the network device on the working frequency point.

However, due to the influence of non-ideal factors of the terminal device itself, devices such as a Power Amplifier (PA) have certain non-linear characteristics, which will cause in-band leakage, such as radio frequency indexes (e.g. spectrum spurious templates (spectrum emission mask, SEM)) and out-of-band leakage (e.g. Adjacent CHANNEL LEAKAGE Ratio (ACLR)) of the radio frequency index, or distortion (e.g. vector magnitude error (error vector magnitude, EVM)) of the transmitted modulated signal itself, when the terminal device transmits the uplink signal on the scheduled frequency resource.

Therefore, in order to protect certain special frequency bands, corresponding radio frequency indexes are specified for the frequency bands in the prior art, and before the terminal device reports the supported frequency band information and successfully accesses the network, various measurements are required to be performed on uplink transmission to verify whether the specified radio frequency indexes are met. The above network signaling value NS value may be used to indicate a radio frequency index to be implemented by the terminal device on a certain frequency Band, in the existing protocol, band n77 is taken as an example, where Band n77 corresponds to three NS values, which are respectively: ns_01, ns_55, ns_57; and the three NS-values are respectively corresponding to different indexes (such as requirement (requirements), channel bandwidth (channel bandwidth), resource blocks (resources blocks), and maximum power backoff (additional maximum power reduction, a-MPR)), and the network side selects one NS-value for the Band n77 to issue, and when determining that the NS-value is supported (i.e. the index corresponding to the NS-value is satisfied), the terminal device accesses the network side.

The flow of the current measurement scheme is as follows:

As shown in fig. 2A, the flow of the measurement scheme includes: s201: for a certain frequency band, configuring a first signaling, wherein the first signaling carries the frequency band number of the frequency band and the NS value of the frequency band; illustratively, the network device configures the system message block SIB1, the number of the band is indicated by freqBandIndicatorNR in SIB1, in addition, the network side configures NR-NS-PmaxList, additionalSpectrumEmission in NR-NS-PmaxList is used to indicate the standardized NS value of the band, and the network side may configure one of the NS values and carry the NS value in SIB 1. S202: the network device sends the first signaling (e.g., the network device broadcasts the system message SIB 1); correspondingly, the terminal equipment receives the first signaling (such as SIB 1); s203: the terminal equipment determines the NS value of the frequency band according to the first signaling (for example, analyzing SIB1 and obtaining the NS value of the frequency band from the SIB 1); s204: the terminal equipment matches the NS value supported by the terminal equipment with the NS value to determine whether the NS value is the same; if yes, the terminal equipment is indicated to support the communication using the frequency band, and the terminal equipment is indicated to support the NS value using the frequency band, the terminal equipment executes the step S205, if not, the terminal equipment is indicated to not support the NS value using the frequency band, and the terminal equipment executes the step S206; s205: the terminal device determines the cell governed by the access network device, that is, the cell governed by the access network device can be initially accessed on the frequency band, and S206: the terminal device determines not to access the network device-administered cell (or the terminal device determines to prohibit camping on the network device-administered cell). Through the measurement scheme, the network equipment can screen out terminal equipment which has specific frequency bands and can meet corresponding radio frequency indexes.

However, in the above measurement scheme, the network device indicates an NS value of a certain frequency band to the terminal device side, and there may be some NS values that cannot be successfully identified or matched by the terminal device because the NS value is not supported by the terminal device, so that a cell governed by the network device cannot be accessed. For example, referring to fig. 2B, for Band n77 (Band n77 has a frequency range of 3300MHz to 4200 MHz), spectrum emission of Band n77 has a stepwise nature in the united states or canada, and a rhythm is formulated based on spectrum regulations, and there are necessarily a plurality of terminal devices, as follows:

For region Phase 1 (region Phase 1) includes: (1) A U.S. Phase 1 terminal device (US Phase 1 UE) and (3) a canadian Phase 1 terminal device (CANADA PHASE 1 UE); the US Phase 1UE is supported and used on the Band n77 in a frequency range of 3700 MHz-3980MHz,Canada Phase 1UE, and on the Band n77 in a frequency range of 3450 MHz-3650 MHz.

For region Phase 2 (region Phase 2) includes: (2) A U.S. Phase 2 terminal device (US Phase 2 UE) and (4) a canadian Phase 2 terminal device (CANADA PHASE UE); the US Phase 2UE is supported on the Band n77 in the frequency range of 3450 MHz-3550 MHz and 3700 MHz-3980MHz,Canada Phase 2UE, and on the Band n77 in the frequency range of 3450 MHz-3650 MHz and 3650 MHz-3980 MHz.

When the network side issues an NS value (the NS value corresponds to the frequency range used by the associated US Phase 2 UE), the US Phase 2UE can identify or match successfully after receiving the NS value issued by the network side, and access the network side, however, the canadian CANADA PHASE UE cannot identify or match successfully after receiving the NS value, and cannot access the network side.

In view of the foregoing, it is currently desirable to propose a communication method that can effectively improve the compatibility of the network device side to different terminal devices, and can allow more terminal devices with access capability to effectively access cells governed by the network device.

Accordingly, the present application proposes a communication method comprising: the method comprises the steps that terminal equipment receives a first network signaling value indicated by network equipment, information of a first frequency band and a first frequency resource set used for initial access in the first frequency band; the first network signaling value is a network signaling value with all frequency bands being configurable, and the first frequency band is a frequency band used by a first cell governed by the network equipment; the terminal device accesses to the first cell when determining that a second set of frequency resources supporting the first network signaling value, supporting the first frequency band communication and the first set of frequency resources, and performing uplink transmission in the first frequency band is non-null with the first set of frequency resources. In the method, because the first network signaling value is a network signaling value used by all frequency bands, the terminal equipment communicating on all frequency bands can possibly access the cell governed by the network equipment, so that the problem that some types of terminal equipment cannot access the cell governed by the network equipment because the network signaling value indicated by the network equipment is not supported can be avoided, the compatibility of the network equipment side to different terminal equipment can be effectively improved, and more terminal equipment with access capability can be allowed to effectively access the cell governed by the network equipment.

In the present application, the terminology used in the following examples is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the specification of the application and the appended claims, the singular forms "a," "an," "the," and "the" are intended to include, for example, "one or more" such forms of expression, unless the context clearly indicates to the contrary. It should also be understood that in embodiments of the present application, "one or more" means one, two, or more than two; "and/or", describes an association relationship of the association object, indicating that three relationships may exist; for example, a and/or B may represent: a alone, a and B together, and B alone, wherein A, B may be singular or plural. The character "/" generally indicates that the context-dependent object is an "or" relationship.

Reference in the specification to "one embodiment" or "an embodiment" or the like means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the application. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," and the like in the specification are not necessarily all referring to the same embodiment, but mean "one or more but not all embodiments" unless expressly specified otherwise. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless expressly specified otherwise. The word "exemplary" or "such as" is used to mean an example, instance, or illustration, and any embodiment or design described as "exemplary" or "such as" should not be construed as preferred or advantageous over other embodiments or designs. The use of the word "exemplary" or "such as" is intended to present the relevant concepts in a concrete fashion to facilitate understanding. The plurality of the embodiments of the present application is greater than or equal to two.

In the embodiment of the present application, the "indication information" may also be referred to as "indication", for example, the first indication information may be referred to as a first indication. In the present application, "indication" may include direct indication, indirect indication, display indication, implicit indication. When a certain indication information is described for indicating a, it can be understood that the indication information carries a, directly indicates a, or indirectly indicates a.

The technical scheme of the application is described below in connection with specific embodiments.

Embodiments of the present application provide a communication method, which may be applied to, but not limited to, the communication system architecture of fig. 1, and may be executed by a transceiver and/or a processor of a terminal device (may also be a network device), or may be executed by a chip corresponding to the transceiver and/or the processor. Or the embodiment may also be implemented by a controller or a control device to which the terminal device (may also be a network device) is connected, the controller or the control device being configured to manage at least one apparatus including the terminal device (may also be a network device). And the present application is not particularly limited with respect to the specific form of the communication apparatus that performs this embodiment. And the ordinal terms such as "first," "second," etc., are used for distinguishing between a plurality of objects for convenience of description and are not used for limiting the order, timing, priority, or importance of the plurality of objects. Referring to fig. 3, the specific flow of the method is as follows:

S301: the network device indicates to the terminal device a first network signaling value, information of a first frequency band, and a first set of frequency resources within the first frequency band for initial access.

The network device may be an access network device, such as a base station, for example.

Correspondingly, the terminal equipment receives the first network signaling value indicated by the network equipment, the information of the first frequency band and a first frequency band resource set used for initial access in the first frequency band; the first network signaling value is a network signaling value with all frequency bands being configurable, and the first frequency band is a frequency band used by a first cell administered by the network device.

The network device may determine the first network signaling value before performing the step S301, which is not specifically limited by the specific way how the network device determines the first network signaling value, for example, the first network signaling value is stored in advance (or is known) by the network device, or the first network signaling value is obtained from another device, or is determined according to information of all frequency bands. In addition, the network device may refer to any one of the cells under its jurisdiction, where the first cell is used to represent any one of the cells, determine a frequency band (i.e. a first frequency band) used by the first cell, and determine a first set of frequency resources for initial access in the frequency band (i.e. the first frequency band) used by the first cell, where a specific determination manner may be implemented by referring to an existing technical scheme, and will not be described in detail herein.

In the embodiment of the present application, the first network signaling value indicated by the network device may be regarded as an NS value, and the NS value may be configured on all frequency bands. Therefore, after receiving the NS value indicated by the network device, the terminal devices communicating on all frequency bands may access the cell governed by the network device, thereby avoiding limitation on the terminal devices.

Since an ns_01 is also defined in the prior art, the ns_01 is a default value of all frequency bands, that is, if the network side does not allocate an NS value or does not issue (instruct) any NS value to the terminal device side, all the terminal devices will work by default using the index corresponding to ns_01. Therefore, the first network signaling value in the embodiment of the present application may be ns_01, or may be another new NS value.

The information of the first frequency band may be a frequency band number of the first frequency band, or a number of the first frequency band, or frequency range information of the first frequency band, or the information of the first frequency band may be used to indicate the frequency band number of the first frequency band. The information of the first frequency band is mainly used for the terminal equipment to determine the first frequency band, and the application can not specifically limit the information of the first frequency band.

The first set of frequency resources for initial access in the first frequency band may be understood as a frequency range corresponding to an Uplink (UL)/Downlink (DL) partial Bandwidth (BWP) of initial access in the first frequency band, and may be understood as a partial bandwidth BWP of uplink UL/downlink DL of initial access in the first frequency band.

In one embodiment, the indicating, by the network device, the first network signaling value, the information of the first frequency band, and the first set of frequency resources for initial access in the first frequency band to the terminal device may include: the network device sends a first message and a second message to the terminal device, the first message indicating the first network signaling value, the second message indicating information of the first frequency band, and a first set of frequency resources for initial access within the first frequency band.

Illustratively, the first message may be NR-MultiBandInfo- { FreqBandIndicatorNR, NR-NS-PmaxList }, and the second message may be UplinkConfigCommonSIB- { locationAndBandwidth, offsetToCarrier }.

In addition, the network device can also send the first message and the second message to the terminal device respectively in a broadcasting mode; or the network equipment can also send a message to the terminal equipment in a broadcasting mode, wherein the message carries the first message and the second message; or the network device may send the first message and the second message to the terminal device in an indirect manner, e.g. the network device sends the first message and the second message to other communication means (other terminal device or network device), which then forwards the first message and the second message to the terminal device by the other communication. Therefore, the present application can not specifically limit the specific manner in which the network device indicates the first network signaling value and the information of the first frequency band, and the first frequency resource set used for initial access in the first frequency band, and the transmission path for transmitting the first message and the second message, and also not specifically limit the sequence of transmitting the first message and the second message.

S302A: and the terminal equipment is accessed into the first cell when the second frequency resource set supporting the first network signaling value, supporting the first frequency band communication and the first frequency resource set and carrying out uplink transmission in the first frequency band is determined to be non-empty with the first frequency resource set.

Correspondingly, the network device accepts the terminal device to be accessed into the first cell.

In one embodiment, the terminal device accesses to the first cell, which may be implemented in the following manner:

The terminal device may perform uplink initial access to the first cell on a set of frequency resources overlapping between the second set of frequency resources and the first set of frequency resources. By the method, the terminal equipment can be ensured to successfully and initially access the first cell by using the proper access resource, so that effective communication is carried out between the terminal equipment and the network equipment.

In the embodiment of the present application, after the terminal device accesses to the first cell governed by the network device, the terminal device can effectively communicate with the network device through the first cell on the first frequency band. In addition, the terminal device may also perform the following step S303.

S302B: and the terminal equipment is not accessed into the first cell when the second frequency resource set which does not support the first network signaling value, or does not support the first frequency band communication, or does not support the first frequency resource set, or performs uplink transmission in the first frequency band is empty with the first frequency resource set.

That is, in this step S302B, the terminal device does not access the first cell when it is determined that any one of the following conditions is not satisfied:

(1) Supporting the first network signaling value;

(2) Supporting communication using the first frequency band;

(3) Supporting use of the first set of frequency resources;

(4) And the second frequency resource set for uplink transmission in the first frequency band and the first frequency resource set are non-null.

In the embodiment of the present application, when the terminal device determines that it is not to access the first cell, the following step S303 may not be performed.

S303: the terminal device sends a third message to the network device, where the third message is used to indicate information of at least one sub-band supported by the terminal device, and the at least one sub-band is a sub-band in the first frequency band.

Correspondingly, the network equipment receives the third message from the terminal equipment; the network device may determine, according to the third message, the at least one sub-band supported by the terminal device, where the number of frequency resources used for uplink transmission in the at least one sub-band is not less than the number of frequency resources overlapping between the second set of frequency resources and the first set of frequency resources.

In one embodiment, the information of the at least one sub-band supported by the terminal device may be indicated by the terminal device to the network device through the third message, which may include, but is not limited to, the following specific ways:

Mode 1: the third message includes at least one predefined number, each predefined number indicating one of the at least one sub-band.

For example, the mapping relationship between a plurality of numbers and a plurality of sub-bands (each number corresponds to one sub-band) is known in advance at both the network device and the terminal device side, or the mapping information between a plurality of numbers and a plurality of sub-bands (each number corresponds to one sub-band) is stored in advance at both the network device and the terminal device side.

Number 1 corresponds to sub-band 1 (sub-band 1 represents a range of sub-frequencies) within the first frequency band, number 2 corresponds to sub-band 2 (sub-band 2 represents a range of sub-frequencies) within the first frequency band, and number 3 corresponds to sub-band 3 (sub-band 3 represents a range of sub-frequencies) within the first frequency band.

If the terminal equipment sends a third message to the network equipment, the third message comprises a number 1 and a number 3; the network device may determine that the terminal device supports the use of sub-band 1 and sub-band 3 within the first frequency band based on the number 1 and number 3 indicated by the third message.

Mode 2: the third message includes at least one pair of first indication information and second indication information, and each pair of the first indication information and the second indication information indicates an upper limit value and a lower limit value of one of the at least one sub-band respectively.

For example, the terminal device may support the use of sub-band 1 and sub-band 2 and sub-band 3 within the first frequency band;

the sub-band 1 range can be expressed as: a lower limit value of the sub-band 1 to an upper limit value of the sub-band 1;

the sub-band 2 range can be expressed as: a lower limit value of the sub-band 2 to an upper limit value of the sub-band 2;

The sub-band 3 range can be expressed as: a lower limit value of the sub-band 3 to an upper limit value of the sub-band 3.

The terminal device sends a third message to the network device, where the third message includes 3 pairs of indication information, that is, first indication information (upper limit indication information) and second indication information (lower limit indication information), and the 3 pairs of indication information respectively indicate the following:

For the 1 st pair of indication information: the first indication information (i.e., upper limit indication information 1) is used for indicating an upper limit value of the sub-band 1; the second indication information (i.e., lower limit indication information 1) is used for indicating the lower limit value of the sub-band 1;

For the 2 nd pair of indication information: the first indication information (i.e., upper limit indication information 2) is used for indicating an upper limit value of the sub-band 2; the second indication information (i.e., lower limit indication information 3) is used to indicate the lower limit value of the sub-band 2;

For the 3 rd pair of indication information: the first indication information (i.e., upper limit indication information 3) is used to indicate an upper limit value of the sub-band 3, and the second indication information (i.e., lower limit indication information 3) is used to indicate a lower limit value of the sub-band 3.

The network device may determine the range of sub-band 1 and the range of sub-band 2 and the range of sub-band 3 in the first frequency band, respectively, according to the 3 pairs of indication information in the third message.

Mode 3: the third message includes at least one pair of third indication information and fourth indication information, and each pair of third indication information and fourth indication information indicates a lower limit value and a length value of one of the at least one sub-band.

the lower limit value of the sub-band 1 is denoted as frequency value 1, and the length of the sub-band 1 is denoted as length 1;

the lower limit value of the sub-band 2 is denoted as frequency value 2, and the length of the sub-band 2 is denoted as length 2;

the lower limit value of the sub-band 3 is denoted as frequency value 3 and the length of this sub-band 3 is denoted as length 3.

The third message includes 3 pairs of indication information, each pair of indication information includes third indication information and fourth indication information, and the 3 pairs of indication information respectively indicate the following:

For the 1 st pair of indication information: the third indication information (i.e. the lower limit indication information 1) is used for indicating the lower limit frequency value 1 of the sub-band 1, and the fourth indication information (i.e. the length indication information 1) is used for indicating the length 1 of the band 1;

for the 2 nd pair of indication information: the third indication information (i.e. the lower limit indication information 2) is used for indicating the lower limit frequency value 2 of the sub-band 2, and the fourth indication information (i.e. the length indication information 2) is used for indicating the length 2 of the sub-band 2;

For the 3 rd pair of indication information: the third indication information (i.e., the lower limit indication information 3) is used to indicate the lower limit frequency value 3 of the sub-band 3, and the fourth indication information (i.e., the length indication information 3) is used to indicate the length 3 of the sub-band 3.

The above several indication manners are only examples of the terminal device indicating the at least one sub-band supported by itself to the network device through the third message.

In addition, in the scheme of the present application, the terminal device is not limited to indicating the at least one sub-band supported by the terminal device to the network device through the third message, and the terminal device may also send or report the at least one sub-band supported by the terminal device to the network device in other manners, for example, the terminal device may directly send the information (the upper limit value and the lower limit value) of the at least one sub-band to the network device, and further send the information (the upper limit value and the lower limit value) of each sub-band to the network device, for example, respectively.

For the scheme of the present application, the steps S301 to S303 are described by taking only one network device and one terminal device as an example, and other network devices and terminal devices can be executed by referring to the steps S301 to S303, which are not described herein in detail.

Taking a network device as an example, the network device indicates a first network signaling value to the terminal device, and because the first network signaling value is a network signaling value that is configurable in all frequency bands, the terminal device that communicates in all frequency bands (i.e. the terminal device with access capability) is likely to access a cell governed by the network device, so that the problem that some types of terminal devices cannot access the cell governed by the network device because the network signaling value indicated by the network device is not supported can be avoided; in addition, the network device indicates to the terminal device frequency band information (i.e. information of a first frequency band) used by a first cell managed by the network device, and a first set of frequency resources for initial access in the first frequency band, when the terminal device determines that communication using the first frequency band is supported, and there is a frequency resource overlapping between a second set of frequency resources for uplink transmission in the first frequency band and the first set of frequency resources for initial access in the first frequency band indicated by the network device, the terminal device can determine to access the first cell managed by the network device. By the method, more terminal equipment with access capability can be allowed to effectively access cells governed by the network equipment, so that compatibility of the network equipment side to different terminal equipment can be improved, and in addition, the terminal equipment can realize normal communication with the network equipment after effectively accessing the cells governed by the network equipment.

In addition, if the terminal device determines to access to the cell (such as the first cell) governed by the network device, the sub-band supported by the terminal device is reported to the network device in the frequency band of the first cell, so that the network side can take the sub-band supported by the terminal device as a capability (or characteristic) of the terminal device to realize effective distinction, and perform reasonable and sufficient scheduling for the terminal device.

In summary, the present application provides a communication method, which includes: the method comprises the steps that terminal equipment receives a first network signaling value indicated by network equipment, information of a first frequency band and a first frequency resource set used for initial access in the first frequency band; the first network signaling value is a network signaling value with all frequency bands being configurable, and the first frequency band is a frequency band used by a first cell governed by the network equipment; the terminal device accesses to the first cell when determining that a second set of frequency resources supporting the first network signaling value, supporting the first frequency band communication and the first set of frequency resources, and performing uplink transmission in the first frequency band is non-null with the first set of frequency resources. In the method, because the first network signaling value is a network signaling value used by all frequency bands, the terminal equipment communicating on all frequency bands can possibly access the cell governed by the network equipment, so that the problem that some types of terminal equipment cannot access the cell governed by the network equipment because the network signaling value indicated by the network equipment is not supported can be avoided, the compatibility of the network equipment side to different terminal equipment can be effectively improved, and more terminal equipment with access capability can be allowed to effectively access the cell governed by the network equipment.

A communication method is proposed for the embodiment of the present application shown in fig. 4 and is further described in detail in the following specific embodiments.

In this embodiment, the network device takes a base station as an example, and the base station is deployed on an NR time division multiplexing frequency Band n77 (i.e. NR TDD Band n 77), and the terminal device takes UE1 as an example, and referring to fig. 4, the method flow of this embodiment is as follows:

S401: the base station broadcasts a system message SIB1, where the SIB1 indicates a network signaling value ns_x, a frequency Band number of a target cell usage frequency Band (Band n 77) administered by the base station, and a frequency range within the frequency Band (Band n 77) where uplink initial access can be configured.

For example, after the base station determines the frequency band used by the target cell (which may be equivalent to the first cell in the above-mentioned scheme of the present application), the system message SIB1 may be configured, and specifically reference may be made to the following:

The cell freqBandIndicatorNR in the system message S1B1 (which may correspond to the second message in the above-described scheme of the present application) is assigned a value 77 (i.e., a band number, which corresponds to the information of the first band in the above-described scheme of the present application);

The index value x of AdditionalSpectrumEmission field in the cell NR-NS-PmaxList (corresponding to the first message in the above-mentioned scheme of the present application) may represent that the corresponding network signaling is ns_x (corresponding to the first network signaling value in the above-mentioned scheme of the present application), where ns_x is a network signaling value (NS value) that can be configured for all frequency bands.

In the present protocol, an NS value may be used to indicate a corresponding radio frequency index to a UE, and in the embodiment of the present application, the ns_x is a network signaling value (NS value) that can be configured for all frequency bands, so that all UEs communicating on all frequency bands can support the ns_x, that is, all UEs communicating on all frequency bands can meet the radio frequency index corresponding to the ns_x, and thus all UEs communicating on all frequency bands may possibly access the target cell of the base station.

The ns_x may be ns_01 or a new NS value, for example.

The system message SIB1 further carries cells locationAndBandwidth and offsetToCarrier, and the locationAndBandwidth and offsetToCarrier (which may be equivalent to the second message in the above-mentioned scheme of the present application) may be used to indicate a frequency range (which may be equivalent to the first frequency resource set used for initial access in the above-mentioned first frequency Band in the scheme of the present application) of configurable uplink initial access in Band n77 (which may be equivalent to the first frequency Band in the above-mentioned scheme of the present application), for example, an uplink frequency (UL frequency) range: 3450-3550 MHz.

Accordingly, if UE1 is within the broadcast coverage of the base station, the UE1 may receive the SIB1.

S402: UE1 determines NS_x, a frequency Band number (n 77) and a frequency range of configurable uplink initial access in the frequency Band (Band n 77) according to the SIB 1.

For example, the UE1 may know that the frequency Band number is 77 according to the cell freqBandIndicatorNR in the SIB1, so as to determine a frequency Band corresponding to the frequency Band number (i.e., band n 77) (i.e., a frequency Band used by the first cell governed by the base station); UE1 may determine, according to AdditionalSpectrumEmission in the cell NR-NS-PmaxList, that the network signaling value indicated by the network device is ns_x, and may determine, according to cells locationAndBandwidth and offsetToCarrier in SIB1, a frequency range within Band n77 that may be used to configure uplink initial access, for example, an uplink frequency (UL frequency) range: 3450MHz to 3550MHz.

S403: the UE1 determines whether to support ns_x and a frequency band number (n 77), and supports to use a frequency range of the configurable uplink initial access in the frequency band, where the frequency range of the UE1 for uplink transmission in the frequency band overlaps with the frequency range of the configurable uplink initial access in the frequency band.

For example, if the UE1 supports the ns_x or the UE1 can configure the ns_x and supports communication on Band n77, but the UE1 does not support uplink transmission configured in 3450 to 3550MHz, or there is no overlapping frequency between the frequency range of uplink transmission of the UE1 in Band n77 and 3450 to 3550MHz, the UE1 determines that the target cell of the base station cannot be accessed (or determines that the target cell of the base station cannot be camped on), the following step S404 is performed.

If the UE1 supports the use of the ns_x or the UE1 can configure the ns_x but does not support communication over Band n77, the UE1 determines that the target cell of the base station cannot be accessed (or determines that the target cell of the base station cannot reside), then the following step S404 is performed.

If the UE1 supports the ns_x or the UE1 can configure the ns_x and support the communication on Band n77, and the UE1 supports the uplink transmission in 3450 to 3550MHz, or there is an overlapping frequency between the frequency range of the uplink transmission of the UE1 in Band n77 and 3450 to 3550MHz, the UE1 determines that the target cell of the base station can be accessed (or determines that the target cell of the base station can reside), the following step S405 is executed.

S404: UE1 determines to not access or camp on the target cell of the base station.

S405: UE1 determines to access or camp on the target cell of the base station.

For example, when the UE1 determines to access or camp on the target cell of the base station, an initial access request may be initiated to the base station, and the base station side accepts the initial access request of the UE1 and performs an initial access procedure with the UE1, so that the UE1 can successfully access the target cell of the base station and perform effective communication.

For example, the UE1 may perform uplink initial access to the target cell of the base station on the overlapping frequency resource between the frequency range of uplink transmission of the UE1 in Band n77 and 3450 MHz-3550 MHz, and the specific flow of the initial access may be implemented with reference to the prior art, which is not described herein in detail.

Optionally, after the UE1 accesses the target cell of the base station, the following step S406 may be further performed.

S406: UE1 reports to the base station the sub-bands supported by UE1 on the Band (Band n 77).

Illustratively, UE1 sends notification signaling (which may correspond to the third message in the present solution) to the base station, where the notification signaling is used to indicate the frequency sub-bands that UE1 may support configuration transmission on Band n 77. Correspondingly, after receiving the notification signaling, the base station can determine the sub-Band that can support configuration transmission on Band n77 by the UE 1.

Illustratively, the UE1 reports the sub-Band that the UE1 can support the configuration transmission on Band n77 to the base station through the notification signaling, which may specifically include, but is not limited to, the following ways:

Mode 1: as shown in table 1, a predefined number is used to indicate that UE1 can support multiple frequency sub-bands for configuration transmission on Band n77, i.e. each frequency sub-Band number corresponds to one frequency sub-Band, and each frequency sub-Band can be represented by an uplink frequency range or a downlink frequency range.

Therefore, when the UE1 in step S406 reports the subband number of 1 to the base station through the notification signaling, it is explained that the UE1 supports the uplink transmission in the full Band configuration of Band n77 (the frequency range is 3300MHz to 4200 MHz).

TABLE 1

The above table 1 is merely an example, and in practice, the table 1 may further include more or less information, and the content of the table 1 is not specifically limited in the embodiments of the present application.

Mode 2: as shown in table 2, it shows that UE1 can support the upper and lower limits of a plurality of frequency sub-bands (i.e., a plurality of frequency ranges) for configuration transmission on Band n77, that is, the frequency range of each frequency sub-Band may be determined by the lower limit of uplink and the lower limit of uplink, or may be determined by the lower limit of downlink and the lower and upper limits of downlink.

Therefore, the UE1 in the step S406 may report the lower limit value of the uplink of the sub-band where the UE1 can support the configuration uplink transmission and the upper limit value of the uplink to the base station through the notification signaling.

For example, for the second row of sub-bands corresponding to Band n77 in table 2, the notification signaling includes indication information 1 and indication information 2, where the indication information 1 indicates that the lower limit of uplink is 3700MHz and the indication information 2 indicates that the upper limit of uplink is 3980MHz, and after obtaining the indication information 1 and the indication information 2 from the notification signaling, the base station may determine that a frequency range of one sub-Band that can support configuration uplink transmission on Band n77 by the UE1 is 3700MHz to 3980MHz.

TABLE 2

The above table 2 is merely an example, and in practice, the table 2 may further include more or less information, and the content of the table 2 is not specifically limited in the embodiments of the present application.

Mode 3: as shown in table 3, it shows that the lower limit and length of a plurality of sub-bands (i.e., a plurality of frequency ranges) in which UE1 can support configuration transmission on Band n77, that is, each sub-Band may be determined by an upper lower limit value and an upper range or length, or may be determined by a lower limit value and a lower range or length.

Therefore, the UE1 in the step S406 may report, to the base station through the notification signaling, the lower limit value of the uplink sub-band and the uplink range or length of the sub-band where the UE1 can support the configuration uplink transmission.

For example, the notification signaling includes indication information 3 and indication information 4, where the indication information 3 indicates that the lower limit of the uplink is 3300MHz, and the indication information 4 indicates that the uplink range or length is 900MHz, and then the base station may determine, according to the indication information 3 and the indication information 4 in the notification signaling, that the UE1 may indicate that the frequency range of one sub-Band configuring uplink transmission on Band n77 is: 3300MHz to 4200MHz.

TABLE 3 Table 3

The above table 3 is merely an example, and in practice, the table 3 may further include more or less information, and the content of the table 3 is not specifically limited in the embodiments of the present application.

Therefore, UE1 may report to the base station the range of the sub-bands that UE1 can support configuration transmission (including uplink transmission or uplink transmission) on Band n77 in any of the above 3 reporting manners.

In this embodiment, the base station indicates the network signaling value to the UE, and the frequency Band (Band n 77) used by the target cell and the set of frequency resources available for configuring uplink initial access on the frequency Band, the UE1 can determine whether the target cell of the base station can be accessed based on the effective areas of these information, other UEs can determine whether the target cell of the base station can be accessed by referring to the above manner of UE1, and since the network signaling value indicated by the base station is configurable in all frequency bands, the access on the UE side is not limited by the condition supporting the network signaling value, that is, the UE with access communication can possibly access the target cell of the base station, and before the initial access stage, the base station can be compatible with more terminal devices to enter the cell residence. Meanwhile, after the initial access stage, the accessed UE can report the sub-frequency Band supporting configuration transmission on the Band n77 to the base station, the base station can distinguish different terminal devices based on the sub-frequency bands of different terminal devices, namely, the capability of the terminal devices is increased, and further, the network side can reasonably and fully schedule the UE, so that the compatibility of the network side to the different terminal devices can be further improved.

In the embodiment provided by the application, the method provided by the embodiment of the application is introduced from the interaction angle among the devices. In order to implement the functions in the method provided by the embodiment of the present application, the network device or the terminal device may include a hardware structure and/or a software module, and implement the functions in the form of a hardware structure, a software module, or a hardware structure plus a software module. Some of the functions described above are performed in a hardware configuration, a software module, or a combination of hardware and software modules, depending on the specific application of the solution and design constraints.

The division of the modules in the embodiment of the application is schematic, only one logic function is divided, and other division modes can be adopted in actual implementation. In addition, each functional module in the embodiments of the present application may be integrated in one processor, or may exist alone physically, or two or more modules may be integrated in one module. The integrated modules may be implemented in hardware or in software functional modules.

As shown in fig. 5, the embodiment of the present application further provides a communication device 500 for implementing the functions of the network device or the terminal device in the above method. The communication means may be, for example, a software module or a system on a chip. In the embodiment of the application, the chip system can be formed by a chip, and can also comprise the chip and other discrete devices. The communication device 500 may include: a communication unit 501 and a processing unit 502.

In the embodiment of the present application, the communication unit 501 may also be referred to as a transceiver unit, and may include a transmitting unit and/or a receiving unit, which are configured to perform the steps of transmitting and receiving by the network device or the terminal device in the above method embodiment, respectively. The processing unit 502 may be configured to read instructions and/or data in the memory module to cause the communication device 500 to implement the foregoing method embodiments.

Optionally, the communication device 500 may further include a storage unit 503, where the storage unit 503 corresponds to a storage module and may be used to store instructions and/or data.

The following describes in detail the communication device provided in the embodiment of the present application with reference to fig. 5 to 6. It should be understood that the descriptions of the apparatus embodiments and the descriptions of the method embodiments correspond to each other, and thus, descriptions of details not described may be referred to the above method embodiments, which are not repeated herein for brevity.

The communication unit 501 may also be referred to as a transceiver, transceiving means, etc. The processing unit may also be called a processor, a processing board, a processing module, a processing device, etc. Alternatively, a device for implementing a receiving function in the communication unit 501 may be regarded as a receiving unit, and a device for implementing a transmitting function in the communication unit 501 may be regarded as a transmitting unit, that is, the communication unit 501 includes a receiving unit and a transmitting unit. The communication unit may also be referred to as a transceiver, transceiver circuitry, or the like. The receiving unit may also be referred to as a receiver, or receiving circuit, among others. The transmitting unit may also sometimes be referred to as a transmitter, or a transmitting circuit, etc.

When the communication apparatus 500 performs the function of the terminal device in the flow shown in fig. 3 in the above embodiment:

The communication unit 501 is configured to receive a first network signaling value indicated by a network device, information of a first frequency band, and a first set of frequency resources used for initial access in the first frequency band; the first network signaling value is a network signaling value with all frequency bands being configurable, and the first frequency band is a frequency band used by a first cell governed by the network equipment; the processing unit 502 is configured to access, through the communication unit 501, to the first cell when it is determined that the second set of frequency resources supporting the first network signaling value, supporting the use of the first frequency band communication and the first frequency resource range, and performing uplink transmission in the first frequency band is not null with the first set of frequency resources.

When the communication apparatus 500 performs the function of the network device in the flow shown in fig. 3 in the above embodiment:

The processing unit 502 is configured to determine a first network signaling value, information of a first frequency band, and a first set of frequency resources for initial access in the first frequency band; the first network signaling value is a network signaling value with all frequency bands being configurable, and the first frequency band is a frequency band used by a first cell governed by the network equipment; the communication unit 501 is configured to indicate the first network signaling value, the information of the first frequency band, and a first set of frequency resources for initial access in the first frequency band to a terminal device; the processing unit 502 is further configured to accept the terminal device to access to the first cell, where the terminal device accesses the first cell when determining that the first network signaling value is supported, the first frequency band is supported to be used for communication and the first frequency resource set, and the second frequency resource set and the first frequency resource set that are used for uplink transmission in the first frequency band are non-null.

The foregoing is merely an example, and the processing unit 502 and the communication unit 501 may perform other functions, and a more detailed description may refer to the related description in the method embodiment shown in fig. 3, which is not repeated herein.

Fig. 6 illustrates a communication device 600 according to an embodiment of the present application, and the communication device illustrated in fig. 6 may be an implementation of a hardware circuit of the communication device illustrated in fig. 5. The communication apparatus 600 may be adapted to perform the functions of the terminal device or the network device in the above-described method embodiments in the flowcharts shown above. For ease of illustration, fig. 6 shows only the main components of the communication device.

As shown in fig. 6, the communication device 600 includes a transceiver 601 and a processor 602. The transceiver 601 and the processor 602 are coupled to each other. It is understood that the transceiver 601 may be a communication interface or an input/output interface, or may be an interface circuit such as a transceiver circuit. Optionally, the communication device 600 may further comprise a memory 603 for storing instructions to be executed by the processor 602 or for storing input data required by the processor 602 to execute instructions or for storing data generated after the processor 602 executes instructions.

When the communication device 600 is used to implement the method shown in fig. 3, the processor 602 is used to implement the functions of the processing unit 502, and the transceiver 601 is used to implement the functions of the communication unit 501 (receiving unit and/or transmitting unit).

The specific connection medium between the transceiver 601, the processor 602, and the memory 603 is not limited in the embodiment of the present application. In the embodiment of the present application, the memory 603, the processor 602 and the transceiver 601 are connected through the communication bus 604 in fig. 6, where the communication bus is indicated by a thick line in fig. 6, and the connection manner between other components is only schematically illustrated, but not limited thereto. The communication bus 604 may be classified as an address bus, a data bus, a control bus, or the like. For ease of illustration, only one thick line is shown in fig. 6, but not only one bus or one type of bus.

When the communication device is a chip, fig. 7 shows a simplified chip structure, and the chip 700 includes an interface circuit 701 and one or more processors 702. Optionally, the chip 700 may also include a bus. Wherein:

the processor 702 may be an integrated circuit chip with signal processing capabilities. In implementation, the steps of the communication method described above may be performed by integrated logic circuitry of hardware in the processor 702 or instructions in the form of software. The processor 702 may be a general purpose processor, a digital communicator (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components. The methods and steps disclosed in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

The interface circuit 701 may be used for transmitting or receiving data, instructions, or information, and the processor 702 may process using the data, instructions, or other information received by the interface circuit 701, and may transmit processing completion information through the interface circuit 701.

Optionally, the chip further comprises a memory 703, which memory 703 may include read only memory and random access memory, and provides operating instructions and data to the processor. A portion of the memory 703 may also include non-volatile random access memory (NVRAM).

Optionally, the memory stores executable software modules or data structures and the processor may perform corresponding operations by invoking operational instructions stored in the memory (which may be stored in an operating system).

Alternatively, the chip may be used in the terminal device or the network device according to the embodiment of the present application. Alternatively, the interface circuit 701 may be configured to output the execution result of the processor 702. The communication method provided in one or more embodiments of the present application may refer to the foregoing embodiments, and will not be described herein.

It should be noted that, the functions corresponding to the interface circuit 701 and the processor 702 may be implemented by a hardware design, a software design, or a combination of hardware and software, which is not limited herein.

The embodiments of the present application also provide a computer readable storage medium having stored thereon computer instructions for implementing the method performed by the first communication device in the above method embodiments, and/or having stored thereon computer instructions for implementing the method performed by the terminal device or the network device (e.g., the base station) in the above method embodiments.

For example, the computer program, when executed by a computer, enables the computer to implement the method performed by a terminal device or a network device (e.g., a base station) in the above-described communication method embodiments.

Embodiments of the present application also provide a computer program product containing instructions that, when executed by a computer, cause the computer to implement a method performed by a terminal device in the method embodiment described above, and/or that, when executed by a computer, cause the computer to implement a method performed by a network device in the method embodiment described above.

The embodiment of the application also provides a chip device, which comprises a processor, and the processor is used for calling the computer degree or the computer instruction stored in the memory, so that the processor executes a communication method of the embodiment shown in the fig. 3.

In a possible implementation, the input of the chip device corresponds to the receiving operation in the embodiment shown in fig. 3, and the output of the chip device corresponds to the transmitting operation in the embodiment shown in fig. 3.

Optionally, the processor is coupled to the memory through an interface.

Optionally, the chip device further comprises a memory, in which the computer degree or the computer instructions are stored.

The processor referred to in any of the above may be a general purpose central processing unit, a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits for controlling the execution of a program for a communication method of the embodiment shown in fig. 3. The memory referred to in any of the above may be read-only memory (ROM) or other type of static storage device, random access memory (random access memory, RAM), or the like, that may store static information and instructions.

It should be noted that, for convenience and brevity, explanation and beneficial effects of the related content in any of the above-mentioned communication devices may refer to the corresponding communication method embodiments provided above, and are not repeated here.

In the application, the communication devices can also comprise a hardware layer, an operating system layer running on the hardware layer and an application layer running on the operating system layer. The hardware layer may include a central processing unit (central processing unit, CPU), a memory management module (memory management unit, MMU), and a memory (also referred to as a main memory). The operating system of the operating system layer may be any one or more computer operating systems that implement business processing through processes (processes), for example, a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or windows operating system, etc. The application layer may include applications such as a browser, address book, word processor, instant messaging software, and the like.

The division of the modules in the embodiments of the present application is schematically only one logic function division, and there may be another division manner in actual implementation, and in addition, each functional module in each embodiment of the present application may be integrated in one processor, or may exist separately and physically, or two or more modules may be integrated in one module. The integrated modules may be implemented in hardware or in software functional modules.

From the above description of embodiments, it will be apparent to those skilled in the art that embodiments of the present application may be implemented in hardware, or firmware, or a combination thereof. When implemented in software, the functions described above may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a computer. Taking this as an example but not limited to: computer readable media can include RAM, ROM, electrically erasable programmable read-Only memory (ELECTRICALLY ERASABLE PROGRAMMABLE READ ONLY MEMORY, EEPROM), compact-disk-read-Only memory (CD-ROM) or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer. Furthermore, it is possible to provide a device for the treatment of a disease. Any connection is properly termed a computer-readable medium. For example, if the software is transmitted from a website, server, or other remote source using a coaxial cable, fiber optic cable, twisted pair, digital subscriber line (digital subscriber line, DSL), or wireless technologies such as infrared, radio, and microwave, then the coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave are included in the fixing of the medium. As used in the embodiments of the present application, discs (disks) and disks include Compact Discs (CDs), laser discs, optical discs, digital versatile discs (digital video disc, DVDs), floppy disks, and blu-ray discs where disks usually reproduce data magnetically, while disks reproduce data optically with lasers. Combinations of the above should also be included within the scope of computer-readable media.

In summary, the foregoing description is only exemplary embodiments of the present application and is not intended to limit the scope of the present application. Any modification, equivalent replacement, improvement, etc. made according to the disclosure of the present application should be included in the protection scope of the present application.

Claims

1. A method of communication, comprising:

The method comprises the steps that terminal equipment receives a first network signaling value indicated by network equipment, information of a first frequency band and a first frequency resource set used for initial access in the first frequency band; the first network signaling value is a network signaling value with all frequency bands being configurable, and the first frequency band is a frequency band used by a first cell governed by the network equipment;

And the terminal equipment is accessed into the first cell when determining that a second frequency resource set supporting the first network signaling value, supporting the first frequency band communication and the first frequency resource set and carrying out uplink transmission in the first frequency band is not empty with the first frequency resource set.

2. The method according to claim 1, wherein the method further comprises:

the terminal equipment is not accessed into the first cell when any one of the following conditions is determined to be not met:

Supporting the first network signaling value;

Supporting communication using the first frequency band;

supporting use of the first set of frequency resources;

and the second frequency resource set for uplink transmission in the first frequency band and the first frequency resource set are non-null.

3. A method according to claim 1 or 2, characterized in that the terminal device accesses into the first cell, comprising:

And the terminal equipment performs uplink initial access to the first cell on the frequency resource set overlapped between the second frequency resource set and the first frequency resource set.

4. A method according to any one of claims 1 to 3, wherein the method further comprises:

The terminal device sends a third message to the network device, where the third message is used to indicate information of at least one sub-band supported by the terminal device, the at least one sub-band is a sub-band in the first frequency band, and the number of frequency resources used for uplink transmission in the at least one sub-band is not less than the number of frequency resources overlapped between the second frequency resource set and the first frequency resource set.

5. The method of claim 4, wherein the third message includes at least one predefined number, each of the predefined numbers indicating one of the at least one sub-band.

6. The method of claim 4, wherein the third message includes at least one pair of first indication information and second indication information, each pair of the first indication information and the second indication information indicating an upper limit value and a lower limit value of one of the at least one sub-band, respectively.

7. The method of claim 4, wherein the third message includes at least one pair of third indication information and fourth indication information, each pair of the third indication information and the fourth indication information indicating a lower limit value and a length value of one of the at least one sub-band, respectively.

8. The method according to any of claims 1 to 7, wherein the terminal device receiving a first network signaling value indicated by a network device, information of a first frequency band, and a first set of frequency resources for initial access within the first frequency band, comprises:

the terminal equipment receives a first message and a second message sent by the network equipment, wherein the first message indicates the first network signaling value, and the second message indicates the information of the first frequency band and a first frequency resource set used for initial access in the first frequency band.

9. A method of communication, comprising:

The network equipment determines a first network signaling value, information of a first frequency band and a first frequency resource set used for initial access in the first frequency band; the first network signaling value is a network signaling value with all frequency bands being configurable, and the first frequency band is a frequency band used by a first cell governed by the network equipment;

the network device indicates the first network signaling value, the information of the first frequency band and a first frequency resource set used for initial access in the first frequency band to a terminal device;

The network device accepts the terminal device to access to the first cell, wherein the terminal device accesses to the first cell when determining that the first frequency resource set and the second frequency resource set which support the first network signaling value, support the first frequency band communication and the first frequency resource set and perform uplink transmission in the first frequency band are non-empty.

10. The method of claim 9, wherein after the network device accepts the terminal device access to the first cell, the method further comprises:

The network device receives a third message from the terminal device, where the third message is used to indicate information of at least one sub-band supported by the terminal device, the at least one sub-band is a sub-band in the first frequency band, and the number of frequency resources used for uplink transmission in the at least one sub-band is not less than the number of frequency resources overlapped between the second frequency resource set and the first frequency resource set.

11. The method of claim 10, wherein the third message includes at least one predefined number, each of the predefined numbers indicating one of the at least one sub-band.

12. The method of claim 10, wherein the third message includes at least one pair of first indication information and second indication information, each pair of the first indication information and the second indication information indicating an upper limit value and a lower limit value of one of the at least one sub-band, respectively.

13. The method of claim 10, wherein the third message includes at least one pair of third indication information and fourth indication information, each pair of the third indication information and the fourth indication information indicating a lower limit value and a length value of one of the at least one sub-band, respectively.

14. The method according to any of the claims 9 to 13, wherein the network device indicates to a terminal device the first network signaling value, the information of the first frequency band, and a first set of frequency resources within the first frequency band for initial access, comprising:

The network device sends a first message and a second message to the terminal device, wherein the first message indicates the first network signaling value, and the second message indicates the information of the first frequency band and a first frequency resource set used for initial access in the first frequency band.

15. A communication device comprising means or modules for performing the method according to any of claims 1 to 8 or means or modules for performing the method according to any of claims 9 to 14.

16. A communication device comprising a processor, the memory being for coupling with a storage medium storing instructions that, when executed by the processor, cause the method of any one of claims 1 to 8 to be implemented or cause the method of any one of claims 9 to 14 to be implemented.

17. A computer-readable storage medium comprising instructions which, when executed by a processor, cause the method of any one of claims 1 to 8 to be implemented, or cause the method of any one of claims 9 to 14 to be implemented.

18. A computer program product comprising instructions which, when executed by a processor, cause the method of any one of claims 1 to 8 to be implemented, causing the method of any one of claims 9 to 14 to be implemented.