WO2023201497A1

WO2023201497A1 - Method and apparatus for determining frequency domain resource in unlicensed spectrum

Info

Publication number: WO2023201497A1
Application number: PCT/CN2022/087515
Authority: WO
Inventors: 赵文素; 赵群
Original assignee: 北京小米移动软件有限公司
Priority date: 2022-04-18
Filing date: 2022-04-18
Publication date: 2023-10-26
Also published as: CN115004818A

Abstract

Disclosed are a method and apparatus for determining a frequency domain resource in an unlicensed spectrum, applicable to the technical field of communications. The method executed by a network device comprises: sending sidelink (SL) bandwidth part (BWP) configuration information to a terminal device, the SL BWP configuration information comprising configuration information of a listen before talk (LBT) subband. Thus, by introducing the configuration information of the LBT subband into the SL BWP configuration information, a usage requirement of the unlicensed spectrum is satisfied.

Description

A method and device for determining frequency domain resources in unlicensed spectrum

Technical field

The present disclosure relates to the field of communication technology, and in particular, to a method and device for transmitting and determining frequency domain resources in an unlicensed spectrum.

Background technique

Usually, frequency domain resources in the sidelink (SL) are configured through the SL bandwidth part (BWP) to the resource pool (resource pool) to the subchannel (subchannel). Among them, SL BWP configures a continuous spectrum resource. Resource pool defines a continuous section on the spectrum resource of SL BWP for SL physical sidelink control channel (PSCCH) and physical sidelink. Spectrum resources used by the shared channel (Physical sidelink shared channel PSSCH) and the physical sidelink feedback channel (PSFCH). One BWP contains one or more resource pools. In the resource pool, the minimum frequency domain resource allocation unit for PSCCH or PSSCH transmission is defined as subchannel.

When using unlicensed spectrum, it is necessary to meet the occupied channel bandwidth (OCB) requirements, that is, each transmission needs to occupy 80% of the Listen Before Talk (LBT) sub-band bandwidth. Therefore, the SL frequency domain configuration requires new designs to adapt to the LBT subband when using unlicensed spectrum.

Contents of the invention

Embodiments of the present disclosure provide a method and device for transmitting determined frequency domain resources in an unlicensed spectrum.

In a first aspect, embodiments of the present disclosure provide a method for transmitting determined frequency domain resources in an unlicensed spectrum. The method is executed by a network device. The method includes:

Send sidelink SL partial bandwidth BWP configuration information to the terminal device, where the SL BWP configuration information includes the configuration information of the listen-before-talk LBT subband.

In this disclosure, the SL BWP configuration information sent by the network device to the terminal device includes the configuration information of the LBT subband. As a result, the need for unlicensed spectrum usage is met by introducing LBT subbands and IRBs in the SL frequency domain configuration.

optional,

One SL BWP in the SL BWP configuration information corresponds to one LBT subband; or,

One SL BWP in the SL BWP configuration information corresponds to multiple LBT subbands.

Optionally, the SL BWP bandwidth includes at least one of the following:

An integer number of LBT sub-band bandwidths, and the frequency domain starting position of the sub-band at the lowest frequency position is the same as the frequency domain starting position of the SL BWP;

A non-integer number of LBT sub-band bandwidths, and the frequency domain starting position of the SL BWP is a preconfigured position.

Optionally, the LBT subband configuration information includes at least one of the following:

Frequency domain information of LBT subband;

Configuration information of parameters used when performing LBT in the LBT subband;

Configuration information of SL resource pool;

Correspondence information between SL resource pool and LBT subband;

Correspondence information between the SL resource pool and the IRB index of the comb resource block in the LBT subband.

In a second aspect, embodiments of the present disclosure provide a method for transmitting determined frequency domain resources in an unlicensed spectrum. The method is executed by a terminal device. The method includes:

Receive the sidelink SL partial bandwidth BWP configuration information sent by the network device, where the SL BWP configuration information includes the configuration information of the listen-before-talk LBT subband.

In this disclosure, the SL BWP configuration information sent by the network device received by the terminal device includes the configuration information of the LBT subband. As a result, the need for unlicensed spectrum usage is met by introducing LBT subbands and IRBs in the SL frequency domain configuration.

Optionally, one SL BWP in the SL BWP configuration information corresponds to one LBT subband; or,

Optionally, the bandwidth of the SL BWP includes an integer number of LBT sub-band bandwidths, and the frequency domain starting position of the sub-band at the lowest frequency position is the same as the frequency domain starting position of the SL BWP;

The bandwidth of the SL BWP includes a non-integer number of LBT sub-band bandwidths, and the frequency domain starting position of the SL BWP is a preconfigured position.

Frequency domain information of LBT subband;

Configuration information of SL resource pool;

Correspondence information between SL resource pool and LBT subband;

Optional, also includes:

According to the capabilities of the terminal device, at least one SL BWP is selected to transmit and/or receive SL signals.

In a third aspect, embodiments of the present application provide a communication device, which on the network device side includes:

The transceiver module is configured to send the sidelink SL partial bandwidth BWP configuration information to the terminal device, where the SL BWP configuration information includes the listen-before-talk LBT subband configuration information.

Optionally, the SL BWP bandwidth includes at least one of the following:

Frequency domain information of LBT subband;

Configuration information of SL resource pool;

Correspondence information between SL resource pool and LBT subband;

In the fourth aspect, embodiments of the present application provide a communication device, which on the terminal device side includes:

The transceiver module is configured to receive the sidelink SL partial bandwidth BWP configuration information sent by the network device, where the SL BWP configuration information includes the listen-before-talk LBT subband configuration information.

Frequency domain information of LBT subband;

Configuration information of SL resource pool;

Correspondence information between SL resource pool and LBT subband;

Optionally, it also includes: a processing module, configured to select at least one SL BWP to send and/or receive SL signals according to the capabilities of the terminal device.

In a fifth aspect, embodiments of the present application provide a communication device. The communication device includes a processor. When the processor calls a computer program in a memory, it executes the method described in the first aspect.

In a sixth aspect, embodiments of the present application provide a communication device. The communication device includes a processor. When the processor calls a computer program in a memory, it executes the method described in the second aspect.

In a seventh aspect, embodiments of the present application provide a communication device. The communication device includes a processor and a memory, and a computer program is stored in the memory; the processor executes the computer program stored in the memory, so that the communication device executes The method described in the first aspect above.

In an eighth aspect, embodiments of the present application provide a communication device. The communication device includes a processor and a memory, and a computer program is stored in the memory; the processor executes the computer program stored in the memory, so that the communication device executes The method described in the second aspect above.

In a ninth aspect, embodiments of the present application provide a communication device. The device includes a processor and an interface circuit. The interface circuit is used to receive code instructions and transmit them to the processor. The processor is used to run the code instructions to cause the The device performs the method described in the first aspect.

In a tenth aspect, embodiments of the present application provide a communication device. The device includes a processor and an interface circuit. The interface circuit is used to receive code instructions and transmit them to the processor. The processor is used to run the code instructions to cause the The device performs the method described in the second aspect above.

In an eleventh aspect, embodiments of the present application provide a system for determining frequency domain resources in an unlicensed spectrum. The system includes the communication device described in the third aspect and the communication device described in the fourth aspect, or the system includes a fifth aspect. The communication device according to the sixth aspect and the communication device according to the sixth aspect, or the system includes the communication device according to the seventh aspect and the communication device according to the eighth aspect, or the system includes the communication device according to the ninth aspect. A communication device and the communication device according to the tenth aspect.

In a twelfth aspect, embodiments of the present invention provide a computer-readable storage medium for storing instructions used by the above-mentioned terminal equipment. When the instructions are executed, the terminal equipment is caused to execute the above-mentioned first aspect. method.

In a thirteenth aspect, embodiments of the present invention provide a readable storage medium for storing instructions used by the above-mentioned network device. When the instructions are executed, the network device is caused to perform the method described in the second aspect. .

In a fourteenth aspect, the present application also provides a computer program product including a computer program, which when run on a computer causes the computer to execute the method described in the first aspect.

In a fifteenth aspect, the present application also provides a computer program product including a computer program, which when run on a computer causes the computer to execute the method described in the second aspect.

In a sixteenth aspect, the present application provides a chip system, which includes at least one processor and an interface for supporting the terminal device to implement the functions involved in the first aspect, for example, determining or processing the data involved in the above method. and information. In a possible design, the chip system further includes a memory, and the memory is used to store necessary computer programs and data for the terminal device. The chip system may be composed of chips, or may include chips and other discrete devices.

In a seventeenth aspect, this application provides a chip system, which includes at least one processor and an interface for supporting network equipment to implement the functions involved in the second aspect, for example, determining or processing the data involved in the above method. and information. In a possible design, the chip system further includes a memory, and the memory is used to store necessary computer programs and data for the network device. The chip system may be composed of chips, or may include chips and other discrete devices.

In an eighteenth aspect, the present application provides a computer program that, when run on a computer, causes the computer to execute the method described in the first aspect.

In a nineteenth aspect, this application provides a computer program that, when run on a computer, causes the computer to execute the method described in the second aspect.

Description of the drawings

In order to more clearly illustrate the technical solutions in the embodiments of the disclosure or the background technology, the drawings required to be used in the embodiments or the background technology of the disclosure will be described below.

Figure 1 is a schematic architectural diagram of a communication system provided by an embodiment of the present disclosure;

Figure 2 is a schematic flowchart of a method for determining frequency domain resources in unlicensed spectrum provided by an embodiment of the present disclosure;

Figure 3 is a schematic flowchart of a method for determining frequency domain resources in unlicensed spectrum provided by an embodiment of the present disclosure;

Figure 4 is a schematic flowchart of a method for determining frequency domain resources in unlicensed spectrum provided by an embodiment of the present disclosure;

Figure 5 is a schematic structural diagram of a communication device provided by an embodiment of the present disclosure;

Figure 6 is a schematic structural diagram of another communication device provided by an embodiment of the present disclosure;

FIG. 7 is a schematic structural diagram of a chip provided by an embodiment of the present disclosure.

Detailed ways

For ease of understanding, terminology involved in this disclosure is first introduced.

1. Unlicensed spectrum

Unlicensed spectrum, also known as shared spectrum, refers to spectrum resources other than licensed spectrum.

2. Sidelink communication

Also known as Device to Device Communication, it refers to the fact that terminal devices do not forward through the network, but communicate directly between terminal devices.

3. Interlaced Resource Block (IRB)

IRB refers to a fixed number of resource blocks between two consecutive comb-rule resource blocks in the same comb-rule resource block index. For example, if two comb resource blocks are separated by M resource blocks, then the IRB with index index m includes physical resource blocks (Physical Resource Block, PRB) as {m, m+M, 2M+m, 3M+m,…}, where m∈{0, 1,…, M-1}. In the new radiounlicensed (NR-U) system, the IRB structure is defined for the two subcarrier spaces (SCS) of 15kHz and 30kHz. 15kHz, M=10, there are 10 IRB indexes, 30kHz M =5, there are 5 IRB indexes. In other words, when SCS=30khz, M=5, there are 5 comb indexes in total. For the first IRB index, that is, the IRB index is 0, the PRB corresponding to the comb resource block contained in the comb index is {0,5,10,15,20,25,30,35,40,45}.

4. Common resource block (CRB)

In order to realize the configuration and management of the BWP of the bandwidth part, the PRB is uniformly indexed within the entire bandwidth, and the CRB is defined in the NR system. CRBs are numbered starting from a reference point within the system bandwidth, which is called pointA. pointA is equivalent to a reference point in the frequency domain.

In order to better understand the dual-connection terminal equipment cell group updating method disclosed in the embodiment of the present disclosure, the following first describes the communication system to which the embodiment of the present disclosure is applicable.

Please refer to FIG. 1 , which is a schematic architectural diagram of a communication system provided by an embodiment of the present disclosure. The communication system may include but is not limited to one network device and one terminal device. The number and form of devices shown in Figure 1 are only for examples and do not constitute a limitation on the embodiments of the present disclosure. In actual applications, two or more devices may be included. network equipment, two or more auxiliary communication equipment, two or more terminal equipment. The communication system shown in Figure 1 includes a network device 11 and a terminal device 12 as an example.

It should be noted that the technical solutions of the embodiments of the present disclosure can be applied to various communication systems. For example: long term evolution (LTE) system, fifth generation (5th generation, 5G) mobile communication system, 5G new radio (NR) system, or other future new mobile communication systems.

The network device 11 in the embodiment of the present disclosure is an entity on the network side that is used to transmit or receive signals. For example, the network device 11 may be an evolved base station (evolved NodeB, eNB), a transmission point (transmission reception point, TRP), a next generation base station (next generation NodeB, gNB) in an NR system, or other future mobile communication systems. Base stations or access nodes in wireless fidelity (WiFi) systems, etc. The embodiments of the present disclosure do not limit the specific technologies and specific equipment forms used by network equipment. The network equipment provided by the embodiments of the present disclosure may be composed of a centralized unit (CU) and a distributed unit (DU). The CU may also be called a control unit (control unit). CU-DU is used. The structure can separate the protocol layers of network equipment, such as base stations, and place some protocol layer functions under centralized control on the CU. The remaining part or all protocol layer functions are distributed in the DU, and the CU centrally controls the DU.

The terminal device 12 in the embodiment of the present disclosure is an entity on the user side that is used to receive or transmit signals, such as a mobile phone. Terminal equipment can also be called terminal equipment (terminal), user equipment (user equipment, UE), mobile station (mobile station, MS), mobile terminal equipment (mobile terminal, MT), etc. The terminal device can be a car with communication functions, a smart car, a mobile phone, a wearable device, a tablet computer (Pad), a computer with wireless transceiver functions, a virtual reality (VR) terminal device, an augmented reality ( augmented reality (AR) terminal equipment, wireless terminal equipment in industrial control, wireless terminal equipment in self-driving, wireless terminal equipment in remote medical surgery, smart grid ( Wireless terminal equipment in smart grid, wireless terminal equipment in transportation safety, wireless terminal equipment in smart city, wireless terminal equipment in smart home, etc. The embodiments of the present disclosure do not limit the specific technology and specific equipment form used by the terminal equipment.

It can be understood that the communication system described in the embodiments of the present disclosure is to more clearly illustrate the technical solutions of the embodiments of the present disclosure, and does not constitute a limitation on the technical solutions provided by the embodiments of the present disclosure. As those of ordinary skill in the art will know, With the evolution of system architecture and the emergence of new business scenarios, the technical solutions provided by the embodiments of the present disclosure are also applicable to similar technical problems.

Please refer to Figure 2. Figure 2 is a schematic flowchart of a method for determining frequency domain resources in a shared spectrum provided by an embodiment of the present disclosure. The method is executed by a network device. As shown in Figure 2, the method may include but is not limited to the following steps:

Step 201: Send the sidelink SL partial bandwidth BWP configuration information to the terminal device, where the SL BWP configuration information includes the listen-before-talk LBT subband configuration information.

In this disclosure, in order to use the unlicensed spectrum, LBT subband related configurations are introduced in the SL BWP, so that the SL BWP configuration meets the unlicensed spectrum requirements.

Optionally, one SL BWP in the SL BWP configuration information can correspond to one LBT subband. That is, configure the SL BWP bandwidth to 20MHz.

Alternatively, one SL BWP can correspond to multiple LBT subbands.

Optionally, the SL BWP bandwidth can include an integer number of LBT sub-band bandwidths, and the frequency domain starting position of the subband at the lowest frequency position is the same as the frequency domain starting position of the SL BWP.

Among them, the frequency domain starting positions of multiple LBT subbands included in the SL BWP bandwidth are arranged in sequence.

Alternatively, the SL BWP bandwidth includes a non-integer number of LBT sub-band bandwidths, and the frequency domain starting position of the SL BWP is a preconfigured position.

For example, the offset value of the starting position of SL BWP relative to pointA can be preconfigured to be the offset value of RB, or the offset value of the starting position of SL BWP relative to pointA can be preconfigured to be the offset value of the subcarrier interval, etc. etc., this disclosure does not limit this.

Optionally, the LBT subband configuration information may include frequency domain information of the LBT subband. For example, the starting frequency domain position of the LBT subband, the ending frequency domain position, etc.

Optionally, the LBT subband configuration information may also include at least one of the following: configuration information of parameters used when performing LBT in the LBT subband, configuration information of the SL resource pool, and the correspondence between the SL resource pool and the LBT subband. Information, the correspondence information between the SL resource pool and the IRB index of the comb resource block in the LBT subband.

For example, if there is only one resource pool in an LBT subband, the LBT subband configuration information can include the configuration information of the SL resource pool, that is, the SL resource pool is configured by the LBT subband, and each SL resource pool can only be located in 1 A LBT sub-band.

Optionally, the SL resource pool configuration information may include the correspondence between the subchannel and the IRB index on the corresponding LBT subband.

Or, if one SL resource pool corresponds to multiple LBT subbands, the configuration of the SL BWP can include information about the correspondence between the SL resource pool and the LBT subband, or the correspondence between the SL resource pool and the IRB of the LBT subband. relationship information.

In other words, the SL resource pool is not defined on one LBT subband, but on multiple LBT subbands. The corresponding relationship information between the corresponding SL resource pool and LBT subband can be directly configured in the SL BWP configuration information, or can be configured in the SL resource pool configuration information in the SL BWP, or can also be configured in the LBT in the SL BWP subband configuration information.

Optionally, the SL resource pool configuration information may include the subchannel and LBT subband, as well as the corresponding relationship between the subchannel and the IRB index on the LBT subband.

Please refer to Figure 3. Figure 3 is a schematic flowchart of a method for determining frequency domain resources in an unlicensed spectrum provided by an embodiment of the present disclosure. The method is executed by a terminal device. As shown in Figure 3, the method may include but is not limited to the following steps:

Step 301: Receive the SLBWP configuration information sent by the network device, where the SL BWP configuration information includes the configuration information of the LBT subband.

Alternatively, one SL BWP can correspond to multiple LBT subbands.

Please refer to Figure 4. Figure 4 is a schematic flowchart of a method for determining frequency domain resources in an unlicensed spectrum provided by an embodiment of the present disclosure. The method is executed by a terminal device. As shown in Figure 4, the method may include but is not limited to the following steps:

Step 401: Receive the SLBWP configuration information sent by the network device, where the SL BWP configuration information includes the configuration information of the LBT subband.

For the specific implementation of the above step 401, please refer to the detailed description of any embodiment of the present disclosure, and will not be described again here.

Step 402: Select at least one SL BWP to send and/or receive SL signals according to the capabilities of the terminal device.

In this disclosure, if the network device has (pre-)configured multiple SL BWPs for the terminal, the terminal device can select at least one SL BWP at a time according to its own capabilities to send and/or receive SL signals.

In this disclosure, the SL BWP configuration information sent by the network device received by the terminal device contains the configuration information of the LBT subband. The terminal device can select at least one SL BWP according to its own capabilities to send and/or receive SL signals. Therefore, by introducing LBT subbands and IRBs in the SL frequency domain configuration, the requirements for unlicensed spectrum use are met.

Please refer to FIG. 5 , which is a schematic structural diagram of a communication device 500 provided by an embodiment of the present disclosure.

The communication device 500 shown in FIG. 5 may include a processing module 501 and a transceiver module 502. The transceiving module 502 may include a sending module and/or a receiving module. The sending module is used to implement the sending function, and the receiving module is used to implement the receiving function. The transceiving module 502 may implement the sending function and/or the receiving function.

It can be understood that the communication device 500 may be a network device, a device in the network device, or a device that can be used in conjunction with the network device.

The communication device 500 is on the network device side, where:

The transceiver module 502 is configured to send the sidelink SL partial bandwidth BWP configuration information to the terminal device, where the SL BWP configuration information includes the listen-before-talk LBT subband configuration information.

optional,

Optionally, the SL BWP bandwidth includes at least one of the following:

Frequency domain information of LBT subband;

Configuration information of SL resource pool;

Correspondence information between SL resource pool and LBT subband;

It can be understood that the communication device 500 may be a terminal device, a device in the terminal device, or a device that can be used in conjunction with the terminal device.

The communication device 500 is on the terminal equipment side, where:

The transceiver module 502 is configured to receive the sidelink SL partial bandwidth BWP configuration information sent by the network device, where the SL BWP configuration information includes the listen-before-talk LBT subband configuration information.

optional,

The bandwidth of the SL BWP includes an integer number of LBT sub-band bandwidths, and the frequency domain starting position of the sub-band at the lowest frequency position is the same as the frequency domain starting position of the SL BWP;

Frequency domain information of LBT subband;

Configuration information of SL resource pool;

Correspondence information between SL resource pool and LBT subband;

Optional, also includes:

The processing module 501 is configured to select at least one SL BWP to send and/or receive SL signals according to the capabilities of the terminal device.

Please refer to FIG. 6 , which is a schematic structural diagram of another communication device 600 provided by an embodiment of the present disclosure. The communication device 600 may be a network device, a terminal device, a chip, a chip system, or a processor that supports a network device to implement the above method, or a chip, a chip system, or a processor that supports a terminal device to implement the above method. Processor etc. The device can be used to implement the method described in the above method embodiment. For details, please refer to the description in the above method embodiment.

Communication device 600 may include one or more processors 601. The processor 601 may be a general-purpose processor or a special-purpose processor, or the like. For example, it can be a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data. The central processor can be used to control communication devices (such as base stations, baseband chips, terminal equipment, terminal equipment chips, DU or CU, etc.) and execute computer programs. , processing data for computer programs.

Optionally, the communication device 600 may also include one or more memories 602, on which a computer program 604 may be stored. The processor 601 executes the computer program 604, so that the communication device 600 performs the steps described in the above method embodiments. method. Optionally, the memory 602 may also store data. The communication device 600 and the memory 602 can be provided separately or integrated together.

Optionally, the communication device 600 may also include a transceiver 605 and an antenna 606. The transceiver 605 may be called a transceiver unit, a transceiver, a transceiver circuit, etc., and is used to implement transceiver functions. The transceiver 605 may include a receiver and a transmitter. The receiver may be called a receiver or a receiving circuit, etc., used to implement the receiving function; the transmitter may be called a transmitter, a transmitting circuit, etc., used to implement the transmitting function.

Optionally, the communication device 600 may also include one or more interface circuits 607. The interface circuit 607 is used to receive code instructions and transmit them to the processor 601 . The processor 601 executes the code instructions to cause the communication device 600 to perform the method described in the above method embodiment.

The communication device 600 is a sending network device: the transceiver 605 performs steps 201 and so on in FIG. 2 .

The communication device 600 is a receiving terminal device: the processor 601 is used to execute steps 402 and so on in Figure 4 .

In one implementation, the processor 601 may include a transceiver for implementing receiving and transmitting functions. For example, the transceiver may be a transceiver circuit, an interface, or an interface circuit. The transceiver circuits, interfaces or interface circuits used to implement the receiving and transmitting functions can be separate or integrated together. The above-mentioned transceiver circuit, interface or interface circuit can be used for reading and writing codes/data, or the above-mentioned transceiver circuit, interface or interface circuit can be used for signal transmission or transfer.

In one implementation, the processor 601 may store a computer program 603, and the computer program 603 runs on the processor 601, causing the communication device 600 to perform the method described in the above method embodiment. The computer program 603 may be solidified in the processor 601, in which case the processor 601 may be implemented by hardware.

In one implementation, the communication device 600 may include a circuit, which may implement the functions of sending or receiving or communicating in the foregoing method embodiments. The processors and transceivers described in this disclosure may be implemented on integrated circuits (ICs), analog ICs, radio frequency integrated circuits RFICs, mixed signal ICs, application specific integrated circuits (ASICs), printed circuit boards ( printed circuit board (PCB), electronic equipment, etc. The processor and transceiver can also be manufactured using various IC process technologies, such as complementary metal oxide semiconductor (CMOS), n-type metal oxide-semiconductor (NMOS), P-type Metal oxide semiconductor (positive channel metal oxide semiconductor, PMOS), bipolar junction transistor (BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.

The communication device described in the above embodiments may be a network device, a terminal device or an auxiliary communication device, but the scope of the communication device described in the present disclosure is not limited thereto, and the structure of the communication device may not be limited by FIG. 6 . The communication device may be a stand-alone device or may be part of a larger device. For example, the communication device may be:

(1) Independent integrated circuit IC, or chip, or chip system or subsystem;

(2) A collection of one or more ICs. Optionally, the IC collection may also include storage components for storing data and computer programs;

(3)ASIC, such as modem;

(4) Modules that can be embedded in other devices;

(5) Receivers, terminal equipment, intelligent terminal equipment, cellular phones, wireless equipment, handheld devices, mobile units, vehicle-mounted equipment, network equipment, cloud equipment, artificial intelligence equipment, etc.;

(6) Others, etc.

For the case where the communication device may be a chip or a chip system, please refer to the schematic structural diagram of the chip shown in FIG. 7 . The chip shown in Figure 7 includes a processor 701 and an interface 703. The number of processors 701 may be one or more, and the number of interfaces 703 may be multiple.

For the case where the chip is used to implement the functions of the network device in the embodiment of the present disclosure:

Interface 703 is used to execute step 201 in Figure 2 and so on.

For the case where the chip is used to implement the functions of the terminal device in the embodiment of the present disclosure:

Interface 703 is used to execute step 301 in Figure 3, step 401 in Figure 4, etc.

Optionally, the chip also includes a memory 703, which is used to store necessary computer programs and data.

Those skilled in the art can also understand that the various illustrative logical blocks and steps listed in the embodiments of the present disclosure can be implemented by electronic hardware, computer software, or a combination of both. Whether such functionality is implemented in hardware or software depends on the specific application and overall system design requirements. Those skilled in the art can use various methods to implement the described functions for each specific application, but such implementation should not be understood as exceeding the scope of protection of the embodiments of the present disclosure.

The present disclosure also provides a readable storage medium on which instructions are stored, and when the instructions are executed by a computer, the functions of any of the above method embodiments are implemented.

The present disclosure also provides a computer program product, which, when executed by a computer, implements the functions of any of the above method embodiments.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented using software, it may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer programs. When the computer program is loaded and executed on a computer, the processes or functions described in accordance with the embodiments of the present disclosure are generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer program may be stored in or transferred from one computer-readable storage medium to another, for example, the computer program may be transferred from a website, computer, server, or data center Transmission to another website, computer, server or data center through wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) means. The computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains one or more available media integrated. The available media may be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., high-density digital video discs (DVD)), or semiconductor media (e.g., solid state disks, SSD)) etc.

Those of ordinary skill in the art can understand that the first, second, and other numerical numbers involved in this disclosure are only for convenience of description and are not used to limit the scope of the embodiments of the disclosure, nor to indicate the order.

At least one in the present disclosure can also be described as one or more, and the plurality can be two, three, four or more, and the present disclosure is not limited. In the embodiment of the present disclosure, for a technical feature, the technical feature is distinguished by “first”, “second”, “third”, “A”, “B”, “C” and “D” etc. The technical features described in "first", "second", "third", "A", "B", "C" and "D" are in no particular order or order.

The corresponding relationships shown in each table in this disclosure can be configured or predefined. The values of the information in each table are only examples and can be configured as other values, which is not limited by this disclosure. When configuring the correspondence between information and each parameter, it is not necessarily required to configure all the correspondences shown in each table. For example, in the table in this disclosure, the corresponding relationships shown in some rows may not be configured. For another example, appropriate deformation adjustments can be made based on the above table, such as splitting, merging, etc. The names of the parameters shown in the titles of the above tables may also be other names understandable by the communication device, and the values or expressions of the parameters may also be other values or expressions understandable by the communication device. When implementing the above tables, other data structures can also be used, such as arrays, queues, containers, stacks, linear lists, pointers, linked lists, trees, graphs, structures, classes, heaps, hash tables or hash tables. wait.

Predefinition in this disclosure may be understood as definition, pre-definition, storage, pre-storage, pre-negotiation, pre-configuration, solidification, or pre-burning.

Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented with electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each specific application, but such implementations should not be considered to be beyond the scope of this disclosure.

Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working processes of the systems, devices and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be described again here.

The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure. should be covered by the protection scope of this disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

A method for determining frequency domain resources in unlicensed spectrum, characterized in that it is executed by network equipment, and the method includes:

Send sidelink SL partial bandwidth BWP configuration information to the terminal device, where the SL BWP configuration information includes the configuration information of the listen-before-talk LBT subband.
The method of claim 1, characterized in that:

One SL BWP in the SL BWP configuration information corresponds to one LBT subband; or,

One SL BWP in the SL BWP configuration information corresponds to multiple LBT subbands.
The method of claim 2, wherein the SL BWP bandwidth includes at least one of the following:

An integer number of LBT sub-band bandwidths, and the frequency domain starting position of the sub-band at the lowest frequency position is the same as the frequency domain starting position of the SL BWP;

A non-integer number of LBT sub-band bandwidths, and the frequency domain starting position of the SL BWP is a preconfigured position.
The method of claim 1, wherein the LBT subband configuration information includes at least one of the following:

Frequency domain information of LBT subband;

Configuration information of parameters used when performing LBT in the LBT subband;

Configuration information of SL resource pool;

Correspondence information between SL resource pool and LBT subband;

Correspondence information between the SL resource pool and the IRB index of the comb resource block in the LBT subband.
A method for determining frequency domain resources in unlicensed spectrum, characterized in that it is executed by a terminal device, and the method includes:

Receive the sidelink SL partial bandwidth BWP configuration information sent by the network device, where the SL BWP configuration information includes the configuration information of the listen-before-talk LBT subband.
The method of claim 5, characterized in that:

One SL BWP in the SL BWP configuration information corresponds to one LBT subband; or,

One SL BWP in the SL BWP configuration information corresponds to multiple LBT subbands.
The method of claim 6, characterized in that:

The bandwidth of the SL BWP includes an integer number of LBT sub-band bandwidths, and the frequency domain starting position of the sub-band at the lowest frequency position is the same as the frequency domain starting position of the SL BWP;

The bandwidth of the SL BWP includes a non-integer number of LBT sub-band bandwidths, and the frequency domain starting position of the SL BWP is a preconfigured position.
The method of claim 5, wherein the LBT subband configuration information includes at least one of the following:

Frequency domain information of LBT subband;

Configuration information of parameters used when performing LBT in the LBT subband;

Configuration information of SL resource pool;

Correspondence information between SL resource pool and LBT subband;

Correspondence information between the SL resource pool and the IRB index of the comb resource block in the LBT subband.
The method according to any one of claims 5 to 8, further comprising:

According to the capabilities of the terminal device, at least one SL BWP is selected to transmit and/or receive SL signals.
A network device, characterized by including:

The transceiver module is configured to send the sidelink SL partial bandwidth BWP configuration information to the terminal device, where the SL BWP configuration information includes the listen-before-talk LBT subband configuration information.
The device according to claim 10, characterized in that:

One SL BWP in the SL BWP configuration information corresponds to one LBT subband; or,

One SL BWP in the SL BWP configuration information corresponds to multiple LBT subbands.
The device of claim 11, wherein the SL BWP bandwidth includes at least one of the following:

An integer number of LBT sub-band bandwidths, and the frequency domain starting position of the sub-band at the lowest frequency position is the same as the frequency domain starting position of the SL BWP;

A non-integer number of LBT sub-band bandwidths, and the frequency domain starting position of the SL BWP is a preconfigured position.
The device according to claim 10, wherein the LBT subband configuration information includes at least one of the following:

Frequency domain information of LBT subband;

Configuration information of parameters used when performing LBT in the LBT subband;

Configuration information of SL resource pool;

Correspondence information between SL resource pool and LBT subband;

Correspondence information between the SL resource pool and the IRB index of the comb resource block in the LBT subband.
A terminal device, characterized by including:

The transceiver module is configured to receive the sidelink SL partial bandwidth BWP configuration information sent by the network device, where the SL BWP configuration information includes the listen-before-talk LBT subband configuration information.
The device according to claim 14, characterized in that:

One SL BWP in the SL BWP configuration information corresponds to one LBT subband; or,

One SL BWP in the SL BWP configuration information corresponds to multiple LBT subbands.
The device according to claim 15, characterized in that:

The bandwidth of the SL BWP includes an integer number of LBT sub-band bandwidths, and the frequency domain starting position of the sub-band at the lowest frequency position is the same as the frequency domain starting position of the SL BWP;

The bandwidth of the SL BWP includes a non-integer number of LBT sub-band bandwidths, and the frequency domain starting position of the SL BWP is a preconfigured position.
The device according to claim 14, wherein the LBT subband configuration information includes at least one of the following:

Frequency domain information of LBT subband;

Configuration information of parameters used when performing LBT in the LBT subband;

Configuration information of SL resource pool;

Correspondence information between SL resource pool and LBT subband;

Correspondence information between the SL resource pool and the IRB index of the comb resource block in the LBT subband.
The device according to any one of claims 14-17, further comprising:

A processing module, configured to select at least one SL BWP to send and/or receive SL signals according to the capabilities of the terminal device.
A communication device, characterized in that the device includes a processor and a memory, a computer program is stored in the memory, and the processor executes the computer program stored in the memory, so that the device executes the claims The method according to any one of claims 1 to 4, or the method according to any one of claims 5 to 9.
A computer-readable storage medium for storing instructions that, when executed, enable the method as claimed in any one of claims 1 to 4 to be implemented, or any one of claims 5 to 9 The method described in the item is implemented.