CN116318460A

CN116318460A - Side link LBT and auxiliary measurement method, device, storage medium and terminal equipment thereof

Info

Publication number: CN116318460A
Application number: CN202111576149.0A
Authority: CN
Inventors: 张萌
Original assignee: Spreadtrum Communications Shanghai Co Ltd
Current assignee: Spreadtrum Communications Shanghai Co Ltd
Priority date: 2021-12-21
Filing date: 2021-12-21
Publication date: 2023-06-23

Abstract

A side link LBT and auxiliary measuring method, device, storage medium and terminal equipment thereof, the side link LBT auxiliary measuring method comprises: receiving measurement indication information, wherein the measurement indication information is used for indicating to execute LBT auxiliary measurement; in response to receiving the measurement indication information, performing LBT assistance measurements to obtain LBT assistance measurement information, the LBT assistance measurement information indicating channel conditions; and sending out the LBT auxiliary measurement information. The technical scheme of the invention can avoid the interference caused by the hidden node in the unlicensed spectrum transmission of the side link transmission.

Description

Side link LBT and auxiliary measurement method, device, storage medium and terminal equipment thereof

Technical Field

The present invention relates to the field of communications technologies, and in particular, to an LBT of an edge link, and an auxiliary measurement method, apparatus, storage medium, and terminal device thereof.

Background

Existing sidelink (sidelink) transmissions operate in licensed spectrum, but the sidelink transmissions are extended in the future to transmit data over shared spectrum (e.g., unlicensed frequency bands). Unlicensed bands are shared by multiple technologies (RATs) and therefore must be used in compliance with rules such as transmission strategies that the terminal device needs to perform listen before talk (Listen Before Talk, LBT) to ensure that all communication devices can use the resource fairly.

Part of the channel interference problem can be solved by adopting the LBT mechanism, but since LBT is performed by an initiating node (e.g., a transmitting terminal device), the hidden node (hidden node) interference problem of a responding node (e.g., a receiving terminal device) cannot be solved. For example, a terminal Equipment (UE) 1 performs LBT interception that a channel is empty before transmitting data, so that UE1 transmits data to UE2 and UE2 receives data. At this time, if UE3 has data to transmit, UE3 performs LBT, and since UE1 is far away from UE3, UE3 listens to the channel being empty, and UE3 starts transmitting data. However, since UE3 and UE2 are closer together, UE2 may receive data transmitted by UE3, and UE3 may be referred to as a hidden node of UE2, and UE2 may interfere with the reception of data from UE1 by the hidden node (UE 3).

How to avoid interference caused by hidden nodes in unlicensed spectrum transmission is a technical problem to be solved.

Disclosure of Invention

The invention provides a link LBT, an auxiliary measurement method, a device, a storage medium and terminal equipment thereof, which can avoid interference caused by hidden nodes in the transmission of an unlicensed spectrum of the side link.

In order to solve the above technical problem, in a first aspect, an embodiment of the present invention provides an auxiliary measurement method for an LBT of an edge link, the auxiliary measurement method for an LBT of an edge link includes: receiving measurement indication information, wherein the measurement indication information is used for indicating to execute LBT auxiliary measurement; in response to receiving the measurement indication information, performing LBT assistance measurements to obtain LBT assistance measurement information, the LBT assistance measurement information indicating channel conditions; and sending out the LBT auxiliary measurement information.

Optionally, the receiving measurement indication information includes: and receiving a channel state information request, wherein the measurement indication information is carried in the channel state information request.

Optionally, the performing LBT assistance measurement includes: and when the bit value in the channel state information request is a preset value, performing LBT auxiliary measurement and zero-power channel state information measurement.

Optionally, the receiving measurement indication information includes: and receiving the side link control information, wherein the measurement indication information is carried in the control information.

Optionally, the measurement indication information is represented by a reserved bit of first-stage control information in the side link control information.

Optionally, when the side link control information schedules null data, the measurement indication information is indicated by new data indication, redundancy version or HARQ in second stage control information in the side link control information.

Optionally, the receiving measurement indication information includes: and receiving the side link MAC CE, wherein the measurement indication information is carried in the side link MAC CE.

Optionally, the performing LBT assistance measurement includes: performing an RSSI measurement, the LBT assistance measurement information including an RSSI; alternatively, the channel busy rate measurement is performed, and the LBT assistance measurement information includes a channel busy rate.

Optionally, the performing LBT assistance measurement includes: LBT assistance measurements are made on a portion of the PSSCH resources that trigger the side link control information scheduling of LBT reports.

Optionally, the measuring a portion of PSSCH resources of the side link control information schedule triggering LBT reporting includes: removing the resources occupied by the data in PSSCH resources, and carrying out LBT auxiliary measurement on the residual resources; alternatively, when the PSSCH triggering the side link control information scheduling of the LBT report is empty, the LBT auxiliary measurement is performed on the PSSCH resource.

Optionally, the performing LBT assistance measurement includes: receiving side link control information, wherein the side link control information indicates a preset resource position; and carrying out LBT auxiliary measurement at the preset resource position.

Optionally, the performing LBT assistance measurement includes: receiving measurement resource indication information, wherein the measurement resource indication information is used for indicating at least one sub-bandwidth of a measurement bandwidth of the LBT; and carrying out LBT auxiliary measurement on at least one sub-bandwidth of the LBT measurement bandwidth.

Optionally, the performing LBT assistance measurement includes: a channel busy rate is calculated, the length of a calculation window of the channel busy rate being less than 100 time slots.

In a second aspect, an embodiment of the present invention further provides an edge link LBT method, where the edge link LBT method includes: transmitting measurement indication information for indicating to perform LBT auxiliary measurement; receiving LBT auxiliary measurement information, wherein the LBT auxiliary measurement information is obtained by performing LBT auxiliary measurement; and carrying out LBT according to the LBT auxiliary measurement information.

In a third aspect, an embodiment of the present invention further provides an auxiliary measurement apparatus for an LBT of an edge link, where the auxiliary measurement apparatus for an LBT of an edge link includes: the measurement indication information receiving module is used for receiving measurement indication information, wherein the measurement indication information is used for indicating to execute LBT auxiliary measurement; a measurement module, configured to perform LBT auxiliary measurement in response to receiving the measurement indication information, so as to obtain LBT auxiliary measurement information, where the LBT auxiliary measurement information indicates a channel condition; and the measurement information sending module is used for sending the LBT auxiliary measurement information out.

In a fourth aspect, an embodiment of the present invention further provides an edge link LBT device, including: the measurement indication information sending module is used for sending measurement indication information, wherein the measurement indication information is used for indicating to execute LBT auxiliary measurement; the system comprises a measurement information receiving module, a measurement information processing module and a measurement information processing module, wherein the measurement information receiving module is used for receiving LBT auxiliary measurement information, and the LBT auxiliary measurement information is obtained by executing LBT auxiliary measurement; and the monitoring module is used for carrying out LBT according to the LBT auxiliary measurement information.

In a fifth aspect, an embodiment of the present invention provides an auxiliary measurement method for an LBT of an edge link, including: performing RSSI measurement to obtain RSSI, wherein LBT auxiliary measurement information comprises the RSSI; and sending out the LBT auxiliary measurement information.

Optionally, the performing RSSI measurement includes: RSSI measurements are made on a portion of PSSCH resources that trigger the scheduling of the side link control information for LBT reports.

Optionally, the performing RSSI measurements on a portion of PSSCH resources that trigger the scheduling of the side link control information of the LBT report includes: removing resources occupied by data in PSSCH resources, and performing RSSI measurement on the remaining resources; or when PSSCH triggering the side link control information scheduling of LBT report is empty, RSSI measurement is carried out on PSSCH resource.

Optionally, receiving side link control information, where the side link control information indicates a preset resource location; and performing RSSI measurement at the preset resource position.

Optionally, the performing RSSI measurement includes: receiving measurement resource indication information, wherein the measurement resource indication information is used for indicating at least one sub-bandwidth of a measurement bandwidth of the LBT; and performing RSSI measurement on at least one sub-bandwidth of the LBT measurement bandwidth.

In a sixth aspect, an embodiment of the present invention provides an auxiliary measurement method for an LBT of an edge link, including: performing channel busy rate measurement to obtain a channel busy rate, the LBT auxiliary measurement information including the channel busy rate; and sending out the LBT auxiliary measurement information.

Optionally, the length of the calculation window of the channel busy rate is less than 100 time slots.

In a seventh aspect, an embodiment of the present invention provides an auxiliary measurement method for an LBT of an edge link, including: performing a channel busy rate measurement to obtain a channel busy rate; when the channel busy rate reaches a preset threshold, performing LBT auxiliary measurement to obtain LBT auxiliary measurement information, wherein the LBT auxiliary measurement information indicates channel conditions; and sending out the LBT auxiliary measurement information.

In an eighth aspect, an embodiment of the present invention provides an edge link LBT method, including: receiving LBT assistance measurement information, the LBT assistance measurement indicating channel conditions; and carrying out LBT according to the LBT auxiliary measurement information.

In a ninth aspect, embodiments of the present invention provide a computer readable storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of the sidelink LBT auxiliary measurement method or performs the steps of the sidelink LBT method.

In a tenth aspect, the embodiment of the present invention provides a terminal device, including a memory and a processor, where the memory stores a computer program that can be executed on the processor, and the processor executes steps of the sidelink LBT auxiliary measurement method or executes steps of the sidelink LBT method when the processor executes the computer program.

Compared with the prior art, the technical scheme of the embodiment of the invention has the following beneficial effects:

in the technical scheme of the invention, the receiving terminal equipment can receive the measurement indication information of the sending terminal equipment and carry out LBT auxiliary measurement; the LBT auxiliary measurement information can indicate the channel occupation condition to the sending terminal equipment and assist the sending terminal equipment to carry out LBT, so that the sending terminal equipment can discover hidden nodes in time, the accuracy of the sending terminal equipment on channel monitoring is ensured, and the reliability of data transmission is ensured.

Further, the LBT auxiliary measurement may be calculating a channel busy rate, and by setting the length of a calculation window of the channel busy rate to be less than 100 time slots, the LBT auxiliary measurement information can reflect the channel condition in a shorter time, so that the transmitting terminal device can be better assisted to perform LBT, and further, the reliability of data transmission is ensured.

Drawings

FIG. 1 is a flow chart of a secondary measurement method for an LBT of an embodiment of the present invention;

FIG. 2 is a flowchart illustrating an exemplary method for assisting measurement of an LBT in an edge link according to an embodiment of the present invention;

FIG. 3 is a flowchart illustrating another exemplary method for assisting measurement of an LBT in accordance with an embodiment of the present invention;

FIG. 4 is a flow chart of another method of assisting measurement of the LBT of the present invention;

FIG. 5 is a flow chart of yet another method for assisting measurement of the LBT of an edge link in accordance with an embodiment of the present invention;

FIG. 6 is a flow chart of yet another method for assisting measurement of the LBT of an edge link in accordance with an embodiment of the present invention;

FIG. 7 is a flow chart of yet another method for assisting measurement of the LBT of an edge link in accordance with an embodiment of the present invention;

FIG. 8 is a schematic diagram of an embodiment of an auxiliary measurement device for LBT of an edge link;

fig. 9 is a schematic diagram of an embodiment of an LBT device for an edge link.

Detailed Description

Communication systems to which embodiments of the present application are applicable include, but are not limited to, long term evolution (long term evolution, LTE) systems, fifth generation (5G) systems, NR systems, and future evolution systems or multiple communication convergence systems. The 5G system may be a non-independent Networking (NSA) 5G system or an independent networking (SA) 5G system. The technical scheme is also applicable to different network architectures, including but not limited to a relay network architecture, a dual link architecture, a Vehicle-to-evaluation architecture, and the like.

The present application relates generally to side link communications between terminal devices. Wherein:

the terminal device (terminal equipment) in embodiments of the present application may refer to various forms of access terminals, subscriber units, subscriber stations, mobile Stations (MSs), remote stations, remote terminals, mobile devices, user terminals, wireless communication devices, user agents, or user equipment. The terminal device may also be a cellular telephone, a cordless telephone, a session initiation protocol (Session Initiation Protocol, SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital assistant (Personal Digital Assistant, PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a future 5G network or a terminal device in a future evolved public land mobile network (Public Land Mobile Network, PLMN), etc., as the embodiments of the application are not limited in this respect. The terminal device may also be referred to as a User Equipment (UE), a terminal, etc.

As described in the background art, how to avoid interference caused by hidden nodes in the transmission of unlicensed spectrum in the transmission of an sidelink is a technical problem to be solved.

In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.

The method for assisting in measuring the LBT of the side link in the embodiment of the invention can be used in receiving terminal equipment (Rx UE) in the side link transmission, and particularly, the steps of the method can be executed by the receiving terminal equipment or a chip in the receiving terminal equipment.

The method for the side link LBT according to the embodiment of the present invention may be used in a transmitting terminal device (Tx UE) in the side link transmission, and specifically, each step of the method may be performed by the transmitting terminal device or a chip in the transmitting terminal device.

It will be appreciated that the method for assisting in measuring the LBT of an edge link or the method for measuring the LBT of an edge link according to the embodiments of the present invention may be implemented by a software program running on a processor integrated within a chip or a chip module. The method may also be implemented by combining software with hardware, which is not limited in this application.

Fig. 1 is a flowchart of an auxiliary measurement method for an LBT of an edge link according to an embodiment of the present invention.

Specifically, the sidelink LBT auxiliary measurement method may include the steps of:

step 101: receiving measurement indication information, wherein the measurement indication information is used for indicating to execute LBT auxiliary measurement;

step 102: in response to receiving the measurement indication information, performing LBT assistance measurements to obtain LBT assistance measurement information, the LBT assistance measurement information indicating channel conditions;

step 103: and sending out the LBT auxiliary measurement information.

It should be noted that the serial numbers of the steps in the present embodiment do not represent a limitation on the execution sequence of the steps.

In a specific implementation of step 101, the receiving terminal device may receive measurement indication information. Accordingly, referring to fig. 2 together, in step 201, the transmitting terminal device transmits measurement instruction information. The measurement indication information serves to indicate to the receiving terminal device that LBT assistance measurement is performed, that is, if the receiving terminal device does not receive the measurement indication information, LBT assistance measurement is not required to be performed.

Specifically, the transmitting terminal device may transmit the above-described reception measurement indication information to the receiving terminal device before performing LBT.

In a specific embodiment, the transmitting terminal device generates measurement indication information and transmits the measurement indication information to the receiving terminal device.

In another embodiment, the network device (such as a core network or a base station) generates measurement indication information, sends the measurement indication information to the sending terminal device, and forwards the measurement indication information to the receiving terminal device by the sending terminal device.

In a specific implementation of step 102, the measurement indication information triggers the receiving terminal device to perform LBT auxiliary measurement, where the measurement result is LBT auxiliary measurement information, and can indicate channel conditions, for example, may indicate that a channel is busy or that a channel is idle.

In a specific implementation of step 103, the receiving terminal device transmits LBT assistance measurement information. Accordingly, in step 202, the transmitting terminal device receives LBT assistance measurement information from the receiving terminal device. And in step 203, LBT is performed according to the LBT auxiliary measurement information. Specifically, the transmitting terminal device may refer to the channel condition indicated by the LBT assistance measurement information when performing LBT. Since the receiving terminal equipment executes the LBT auxiliary measurement, the hidden node can be found, and the sending terminal equipment is informed of the result of the LBT auxiliary measurement, so that the sending terminal equipment can know the information of the hidden node in the LBT process, and interference caused by the hidden node is avoided.

In one non-limiting embodiment of the present invention, referring to fig. 3, in step 301, a transmitting terminal device may transmit a channel state information (Channel State Information, CSI) request. Measurement indication information is carried in the channel state information request.

In this embodiment, the channel state information request may not be modified at all, that is, the channel state information request sent by the sending terminal device is the same as the channel state information request in the prior art.

In this embodiment, a high-level parameter of the receiving terminal device configures a Zero Power (ZP) channel state information Reference Signal (RS). When the bit value in the channel state information request is a preset value (e.g. 1), in step 302, the terminal device performs LBT auxiliary measurement and zero-power channel state information measurement at the same time.

In the embodiment of the invention, the receiving terminal equipment does not need to send the additional information to instruct to execute the LBT auxiliary measurement, but multiplexes the channel state information request when the ZP CSI-RS is configured, and triggers to execute the LBT auxiliary measurement through the channel state information request, thereby reducing signaling overhead.

Further, the receiving terminal device may perform a signal strength indication (Received Signal Strength Indication, RSSI) measurement or a channel busy rate (Channel Busy Ratio, CBR) measurement and, in step 303, send the RSSI or channel busy rate to the transmitting terminal device.

In a non-limiting embodiment of the present invention, step 301 may be replaced with: the transmitting terminal device may transmit the side link control information (Sidelink Control Information, SCI). The measurement indication information is carried in the control information.

In a specific embodiment, the measurement indication information is represented by reserved bits of first-stage control information in the side link control information.

Specifically, the first-stage control information (1 ^st SCI) has a reserved bit in it, which can be usedThe reserved bits carry measurement indication information. For example, when the bit value of the reserved bit is 1, it indicates that LBT assistance measurement is instructed to be performed; when the bit value of the reserved bit is 0, it indicates that the LBT auxiliary measurement need not be instructed to be performed.

In another embodiment, when the side link control information schedules null data, the measurement indication information is represented by a new data indication field, a redundancy version indication field or an indication field of HARQ in second stage control information in the side link control information.

Specifically, when the side link control information is scheduled for an empty transmission (transmission), this means that no data (data) needs to be transmitted, for example, the side link control information indicates a function or an action. In this case, since there is no data to be transmitted, some unused fields (filtered) in the second stage control information (2 nd SCI) may be used to indicate measurement indication information, such as a new data indication (New Data Indication, NDI) field, a redundancy version (Redundancy Version, RV) indication field, or an indication field of a hybrid automatic repeat request (Hybrid Automatic Repeat reQuest, HARQ).

In a non-limiting embodiment of the present invention, step 301 may be replaced with: the transmitting terminal device may transmit a Control Element (CE) of a side link medium access Control (Media Access Control, MAC). The measurement indication information is carried in the side link MAC CE. The side link MAC CE is a new MAC CE.

In one non-limiting embodiment of the present invention, the receiving terminal device performing LBT assistance measurement may refer to performing LBT assistance measurement on a portion of PSSCH resources that trigger scheduling of side link control information for LBT reporting.

In one non-limiting embodiment of the present invention, referring to fig. 4, fig. 4 shows another LBT auxiliary measurement method. The LBT assistance measurement may comprise the steps of:

step 401: receiving side link control information triggering an LBT report;

step 402: performing LBT auxiliary measurement on a part of the PSSCH resources scheduled by the side link control information to obtain LBT auxiliary measurement information, wherein the LBT auxiliary measurement information indicates channel conditions;

step 403: and sending out the LBT auxiliary measurement information.

In one embodiment of step 402, the resources occupied by the data are removed from the PSSCH resources and LBT assistance measurements are performed on the remaining resources. Specifically, the resources occupied by the data may also be notified to the receiving terminal device through the side link control information. That is, the receiving terminal device performs LBT auxiliary measurement (e.g., measures RSSI) on a part of the above-mentioned PSSCH resources where no data is transmitted.

In another embodiment of step 402, when the PSSCH of the side link control information schedule triggering LBT reporting is empty, LBT assistance measurements are made on the PSSCH resources. Specifically, the PSSCH being empty means that none of the PSSCH resources transmits data, in which case the receiving terminal device may perform LBT assistance measurement (e.g., measurement of RSSI) on all of the PSSCH resources.

The embodiment of the invention performs LBT auxiliary measurement on the resource scheduled by the side link control information.

In one non-limiting embodiment of the present invention, referring to fig. 5, fig. 5 shows another LBT auxiliary measurement method. The LBT assistance measurement may comprise the steps of:

step 501: receiving side link control information, wherein the side link control information indicates a preset resource position;

step 502: performing LBT auxiliary measurement on the preset resource position to obtain LBT auxiliary measurement information, wherein the LBT auxiliary measurement information indicates channel conditions;

step 503: and sending out the LBT auxiliary measurement information.

Unlike the foregoing embodiments, the embodiment of the present invention may indicate a preset resource location in the side link control information, where the preset resource location is not limited to the resource scheduled by the side link control information, and then the receiving terminal device may not be limited to performing LBT auxiliary measurement on the resource scheduled by the side link control information, so as to ensure flexibility of measurement.

Specifically, the preset resource location is not earlier than the resource location occupied by the side link control information.

The resources in the embodiment of the invention comprise time domain resources and frequency domain resources, and the resource positions comprise time domain positions and frequency domain positions.

In one non-limiting embodiment of the present invention, referring to fig. 6, fig. 6 shows another LBT auxiliary measurement method. The LBT assistance measurement may comprise the steps of:

step 601: receiving measurement resource indication information, wherein the measurement resource indication information is used for indicating at least one sub-bandwidth of a measurement bandwidth of the LBT;

step 602: performing LBT auxiliary measurement on at least one sub-bandwidth of the LBT measurement bandwidth to obtain LBT auxiliary measurement information, wherein the LBT auxiliary measurement information indicates channel conditions;

step 603: and sending out the LBT auxiliary measurement information.

In the embodiment of the invention, the sending terminal equipment can send the measurement resource indication information to the receiving terminal equipment, and the measurement resource indication information can be specifically in the form of a bitmap (bitmap), wherein each bit in the bitmap corresponds to one sub-bandwidth. The measurement resource indication information can indicate at least one sub-bandwidth of the measurement bandwidth of the LBT. The receiving terminal device may measure a channel measuring the sub-bandwidth indicated by the resource indication information. The LBT assistance measurement information can reflect the condition of the channel of the sub-bandwidth. Wherein the sub-bandwidth is a minimum bandwidth or a predefined bandwidth for the terminal device to perform LBT.

For example, the measurement bandwidth of LBT is 80MHZ (megahertz), including four sub-bandwidths of 20MHZ, each sub-bandwidth corresponding to a channel. The TxUE transmits 1011 to the RxUE, and then the RxUE may perform LBT assistance measurement information for the first, third, and fourth sub-bandwidths of the measurement bandwidths.

In one non-limiting embodiment of the present invention, referring to fig. 7, fig. 7 shows another LBT auxiliary measurement method. The LBT assistance measurement may comprise the steps of:

step 701: calculating a channel busy rate, wherein the length of a calculation window of the channel busy rate is less than 100 time slots;

step 702: and sending out the channel busy rate.

In the embodiment of the invention, performing the LBT auxiliary measurement may be a process of calculating the channel busy rate. In the prior art, the channel busy rate is calculated for 100 time slots, and the overlong calculation window can cause that the LBT mechanism cannot be normally executed. Therefore, the length of the calculation window of the channel busy rate can be reduced in the embodiment of the invention.

Specifically, the length of the channel busy rate calculation window may be configured by the higher layer parameter sl-timerwindosizebsr.

Further, the length of the calculation window of the channel busy rate is one slot.

The embodiment of the invention aims at a scheme for LBT auxiliary measurement in a side link communication scene, and the LBT auxiliary measurement scheme for the side link communication and the existing non-side link communication is different in measurement indication information source, indication domain occupied by measurement indication information and feedback information parameters (such as specific parameters of LBT auxiliary measurement information) and cannot be directly used. Specifically, in the first aspect, the indication information for indicating the receiving terminal device to perform the auxiliary LBT measurement in the side link scenario may come from the base station, and then be indicated to the receiving terminal device through the transmitting terminal device; the above-mentioned trigger indication LBT auxiliary measurement form of base station-transmitting terminal device-receiving terminal device is not available in the non-sidelink scenario. In a second aspect, there may be some difference in indication details in the sidelink scenario, such as the indication field of the control information utilized is different from the prior art. In a third aspect, feedback information in the side link scenario may be some parameters unique to the side link communication, such as CBR, etc.

Referring to fig. 8, the sidelink LBT auxiliary measurement apparatus 80 may include:

a measurement indication information receiving module 801, configured to receive measurement indication information, where the measurement indication information is used to indicate to perform LBT auxiliary measurement;

a measurement module 802, configured to perform LBT auxiliary measurement in response to receiving the measurement indication information, so as to obtain LBT auxiliary measurement information, where the LBT auxiliary measurement information indicates a channel condition;

and the measurement information sending module 803 is configured to send out the LBT auxiliary measurement information.

In a specific implementation, the above-mentioned side-link LBT auxiliary measurement device may correspond to a Chip having a side-link LBT auxiliary measurement function in a receiving terminal device, such as an SOC (System-On-a-Chip), a baseband Chip, etc.; or a chip module with an auxiliary measuring function of the side link LBT is included in the receiving terminal equipment; or corresponds to a chip module having a chip with a data processing function or corresponds to a receiving terminal device.

Referring to fig. 9, the side link LBT device 90 may include:

a measurement indication information transmitting module 901, configured to transmit measurement indication information, where the measurement indication information is used to indicate to perform LBT auxiliary measurement;

a measurement information receiving module 902, configured to receive LBT auxiliary measurement information, where the LBT auxiliary measurement information is obtained by performing LBT auxiliary measurement;

and a monitoring module 903, configured to perform LBT according to the LBT auxiliary measurement information.

In a specific implementation, the above-mentioned side-link LBT device may correspond to a Chip having a side-link LBT function in a transmitting terminal device, such as an SOC (System-On-a-Chip), a baseband Chip, etc.; or corresponds to a chip module with an edge link LBT function in the sending terminal equipment; or corresponds to a chip module having a chip with a data processing function or corresponds to a transmitting terminal device.

For more details of the operation principle and operation manner of the auxiliary measurement device 80 or the auxiliary measurement device 90, reference may be made to the related descriptions in fig. 1 to 7, which are not repeated here.

With respect to each of the apparatuses and each of the modules/units included in the products described in the above embodiments, it may be a software module/unit, a hardware module/unit, or a software module/unit, and a hardware module/unit. For example, for each device or product applied to or integrated on a chip, each module/unit included in the device or product may be implemented in hardware such as a circuit, or at least part of the modules/units may be implemented in software program, where the software program runs on a processor integrated inside the chip, and the rest (if any) of the modules/units may be implemented in hardware such as a circuit; for each device and product applied to or integrated in the chip module, each module/unit contained in the device and product can be realized in a hardware manner such as a circuit, different modules/units can be located in the same component (such as a chip, a circuit module and the like) or different components of the chip module, or at least part of the modules/units can be realized in a software program, the software program runs on a processor integrated in the chip module, and the rest (if any) of the modules/units can be realized in a hardware manner such as a circuit; for each device, product, or application to or integrated with the terminal, each module/unit included in the device, product, or application may be implemented by using hardware such as a circuit, different modules/units may be located in the same component (for example, a chip, a circuit module, or the like) or different components in the terminal, or at least part of the modules/units may be implemented by using a software program, where the software program runs on a processor integrated inside the terminal, and the remaining (if any) part of the modules/units may be implemented by using hardware such as a circuit.

The embodiment of the invention also discloses a storage medium which is a computer readable storage medium and is stored with a computer program, and the computer program can execute the steps of the method when running. The storage medium may include ROM, RAM, magnetic or optical disks, and the like. The storage medium may also include a non-volatile memory (non-volatile) or a non-transitory memory (non-transitory) or the like.

The embodiment of the invention also discloses a terminal device, which can comprise a memory and a processor, wherein the memory stores a computer program capable of running on the processor. The processor may perform the steps of the aforementioned method when running the computer program. The user equipment comprises, but is not limited to, terminal equipment such as mobile phones, computers, tablet computers and the like.

The network device in the embodiments of the present application may also be referred to as an access network device, for example, may be a Base Station (BS) (also referred to as a base station device), where the network device is a device deployed in a radio access network (Radio Access Network, RAN) to provide a wireless communication function. For example, the device for providing base station functionality in the second generation (2 nd-generation, 2G) network comprises a base radio transceiver station (base transceiver station, BTS), the device for providing base station functionality in the third generation (3 rd-generation, 3G) network comprises a node B (NodeB), the device for providing base station functionality in the fourth generation (4 th-generation, 4G) network comprises an evolved node B (eNB), the device for providing base station functionality in the wireless local area network (wireless local area networks, WLAN) is an Access Point (AP), the next generation base station node (next generation node base station, gNB) in the NR is an Access Point (AP), and the node B (ng-eNB) continues to evolve, wherein the communication between the gNB and the terminal device is performed using NR technology, and the communication between the ng-eNB and the terminal device is performed using evolved universal terrestrial radio access (Evolved Universal Terrestrial Radio Access, E-UTRA) technology, both the gNB and the ng-eNB may be connected to the 5G core network. The network device in the embodiment of the present application further includes a device that provides a base station function in a new communication system in the future, and the like.

It should be understood that the term "and/or" is merely an association relationship describing the associated object, and means that three relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist together, and B exists alone. In this context, the character "/" indicates that the front and rear associated objects are an "or" relationship.

The term "plurality" as used in the embodiments herein refers to two or more.

The first, second, etc. descriptions in the embodiments of the present application are only used for illustrating and distinguishing the description objects, and no order division is used, nor does it indicate that the number of the devices in the embodiments of the present application is particularly limited, and no limitation on the embodiments of the present application should be construed.

The "connection" in the embodiments of the present application refers to various connection manners such as direct connection or indirect connection, so as to implement communication between devices, which is not limited in any way in the embodiments of the present application.

It should be appreciated that in the embodiments of the present application, the processor may be a central processing unit (central processing unit, abbreviated as CPU), and the processor may also be other general purpose processors, digital signal processors (digital signal processor, abbreviated as DSP), application specific integrated circuits (application specific integrated circuit, abbreviated as ASIC), off-the-shelf programmable gate arrays (field programmable gate array, abbreviated as FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

It should also be appreciated that the memory in embodiments of the present application may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The nonvolatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an electrically erasable ROM (electrically EPROM, EEPROM), or a flash memory. The volatile memory may be a random access memory (random access memory, RAM for short) which acts as an external cache. By way of example but not limitation, many forms of random access memory (random access memory, abbreviated as RAM) are available, such as static random access memory (static RAM), dynamic Random Access Memory (DRAM), synchronous Dynamic Random Access Memory (SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, abbreviated as DDR SDRAM), enhanced Synchronous Dynamic Random Access Memory (ESDRAM), synchronous Link DRAM (SLDRAM), and direct memory bus random access memory (direct rambus RAM, abbreviated as DR RAM).

The above embodiments may be implemented in whole or in part by software, hardware, firmware, or any other combination. When implemented in software, the above-described embodiments may be implemented in whole or in part in the form of a computer program product. The computer program product comprises one or more computer instructions or computer programs. When the computer instructions or computer program are loaded or executed on a computer, the processes or functions described in accordance with the embodiments of the present application are all or partially produced. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from one website site, computer, server, or data center to another website site, computer, server, or data center by wired or wireless 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 sets of available media.

It should be understood that, in various embodiments of the present application, the sequence numbers of the foregoing processes do not mean the order of execution, and the order of execution of the processes should be determined by the functions and internal logic thereof, and should not constitute any limitation on the implementation process of the embodiments of the present application.

In the several embodiments provided in the present application, it should be understood that the disclosed method, apparatus, and system may be implemented in other manners. For example, the device embodiments described above are merely illustrative; for example, the division of the units is only one logic function division, and other division modes can be adopted in actual implementation; for example, multiple units or components may be combined or may be integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in the embodiments of the present invention may be integrated in one processing unit, or each unit may be physically included separately, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in hardware plus software functional units.

The integrated units implemented in the form of software functional units described above may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium, and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform part of the steps of the method according to the embodiments of the present invention.

Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the invention, and the scope of the invention should be assessed accordingly to that of the appended claims.

Claims

1. A method for assisting in measurement of an LBT of a side link, comprising:

receiving measurement indication information, wherein the measurement indication information is used for indicating to execute LBT auxiliary measurement;

in response to receiving the measurement indication information, performing LBT assistance measurements to obtain LBT assistance measurement information, the LBT assistance measurement information indicating channel conditions;

and sending out the LBT auxiliary measurement information.

2. The method of side link LBT auxiliary measurement according to claim 1, wherein the receiving measurement indication information includes:

and receiving a channel state information request, wherein the measurement indication information is carried in the channel state information request.

3. The method of side-link LBT assistance measurement according to claim 2, wherein said performing LBT assistance measurement comprises:

and when the bit value in the channel state information request is a preset value, performing LBT auxiliary measurement and zero-power channel state information measurement.

4. The method of side link LBT auxiliary measurement according to claim 1, wherein the receiving measurement indication information includes:

and receiving the side link control information, wherein the measurement indication information is carried in the control information.

5. The method of claim 4, wherein the measurement indication information is represented by reserved bits of first stage control information in the side link control information.

6. The method of claim 4, wherein the measurement indication information is represented by a new data indication, a redundancy version, or HARQ in second stage control information in the side link control information when the side link control information schedules null data.

7. The method of side link LBT auxiliary measurement according to claim 1, wherein the receiving measurement indication information includes:

and receiving the side link MAC CE, wherein the measurement indication information is carried in the side link MAC CE.

8. The method of side-link LBT assistance measurement according to claim 1, wherein said performing LBT assistance measurement comprises:

performing an RSSI measurement, the LBT assistance measurement information including an RSSI;

alternatively, the channel busy rate measurement is performed, and the LBT assistance measurement information includes a channel busy rate.

9. The method of side-link LBT assistance measurement according to claim 1, wherein said performing LBT assistance measurement comprises:

LBT assistance measurements are made on a portion of the PSSCH resources that trigger the side link control information scheduling of LBT reports.

10. The method of side link LBT assistance measurement according to claim 9, wherein the measuring a portion of PSSCH resources of the side link control information schedule triggering LBT reporting includes: removing the resources occupied by the data in PSSCH resources, and carrying out LBT auxiliary measurement on the residual resources; alternatively, when the PSSCH triggering the side link control information scheduling of the LBT report is empty, the LBT auxiliary measurement is performed on the PSSCH resource.

11. The method of side-link LBT assistance measurement according to claim 1, wherein said performing LBT assistance measurement comprises:

receiving side link control information, wherein the side link control information indicates a preset resource position;

and carrying out LBT auxiliary measurement at the preset resource position.

12. The method of side-link LBT assistance measurement according to claim 1, wherein said performing LBT assistance measurement comprises:

receiving measurement resource indication information, wherein the measurement resource indication information is used for indicating at least one sub-bandwidth of a measurement bandwidth of the LBT;

and carrying out LBT auxiliary measurement on at least one sub-bandwidth of the LBT measurement bandwidth.

13. The method of side-link LBT assistance measurement according to claim 1, wherein said performing LBT assistance measurement comprises:

a channel busy rate is calculated, the length of a calculation window of the channel busy rate being less than 100 time slots.

14. A method of side link LBT, comprising:

transmitting measurement indication information for indicating to perform LBT auxiliary measurement;

receiving LBT auxiliary measurement information, wherein the LBT auxiliary measurement information is obtained by performing LBT auxiliary measurement;

and carrying out LBT according to the LBT auxiliary measurement information.

15. The side link LBT method according to claim 14, wherein before transmitting the measurement indication information, further comprising:

the measurement indication information is received from a network device.

16. An auxiliary measurement apparatus for an LBT of a side link, comprising:

the measurement indication information receiving module is used for receiving measurement indication information, wherein the measurement indication information is used for indicating to execute LBT auxiliary measurement;

a measurement module, configured to perform LBT auxiliary measurement in response to receiving the measurement indication information, so as to obtain LBT auxiliary measurement information, where the LBT auxiliary measurement information indicates a channel condition;

and the measurement information sending module is used for sending the LBT auxiliary measurement information out.

17. An edge link LBT device, comprising:

the measurement indication information sending module is used for sending measurement indication information, wherein the measurement indication information is used for indicating to execute LBT auxiliary measurement;

the system comprises a measurement information receiving module, a measurement information processing module and a measurement information processing module, wherein the measurement information receiving module is used for receiving LBT auxiliary measurement information, and the LBT auxiliary measurement information is obtained by executing LBT auxiliary measurement;

and the monitoring module is used for carrying out LBT according to the LBT auxiliary measurement information.

18. A computer readable storage medium having stored thereon a computer program, characterized in that the computer program when run by a processor performs the steps of the side link LBT auxiliary measurement method according to any of claims 1 to 13 or performs the steps of the side link LBT method according to claim 14 or 15.

19. Terminal device comprising a memory and a processor, the memory having stored thereon a computer program executable on the processor, characterized in that the processor, when executing the computer program, performs the steps of the sidelink LBT auxiliary measurement method of any of claims 1 to 13 or performs the steps of the sidelink LBT method of claim 14 or 15.