Wireless communication method, terminal device and network device

Abstract

A wireless communication method, a terminal device and a network device, the wireless communication method comprising: a first terminal receiving first indication information, the first indication information being used for indicating the first terminal to send a first channel state information (CSI) report; and determining a first carrier, wherein the first carrier is used for sending the first CSI report.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of communications, and specifically to a wireless communication method, terminal equipment, and network equipment. Background Art

[0002] The sidelink channel state information (CSI) reporting process is used to provide the other device in unicast communication with the sidelink channel state information, so that the other device can make corresponding access layer parameter adjustments, including but not limited to power control and modulation and demodulation mode adjustments.

[0003] The existing NR (New Radio) SL (Sidelink) only supports a single carrier and the CSI reporting mechanism under a single carrier. After the introduction of the multi-carrier mechanism, the corresponding CSI reporting mechanism has yet to be proposed. Summary of the invention

[0004] The present application provides a wireless communication method, terminal equipment and network equipment, which are conducive to improving side transmission performance.

[0005] In a first aspect, a wireless communication method is provided, which is applied to a first terminal and includes:

[0006] receiving first indication information, where the first indication information is used to instruct the first terminal to send a first channel state information CSI report;

[0007] A first carrier is determined, where the first carrier is used to send the first CSI report.

[0008] In a second aspect, a wireless communication method is provided, which is applied to a second terminal and includes:

[0009] Send first indication information, where the first indication information is used to instruct the first terminal to send a first CSI report.

[0010] In a third aspect, a wireless communication method is provided, which is applied to a network device, including:

[0011] Receiving a first scheduling request SR and / or a first buffer status report BSR sent by a first terminal;

[0012] A first resource is determined according to the first SR and / or the first BSR, where the first resource is used for the first terminal to send a first CSI report.

[0013] In a fourth aspect, a first terminal device is provided for executing the method in the above-mentioned first aspect or its various implementation modes.

[0014] Specifically, the first terminal device includes a functional module for executing the method in the above-mentioned first aspect or its various implementation modes.

[0015] In a fifth aspect, a second terminal device is provided for executing the method in the above-mentioned second aspect or its various implementation modes.

[0016] Specifically, the second terminal device includes a functional module for executing the method in the above-mentioned second aspect or its various implementation modes.

[0017] In a sixth aspect, a network device is provided for executing the method in the third aspect or its various implementations.

[0018] Specifically, the network device includes a functional module for executing the method in the above-mentioned third aspect or its various implementation modes.

[0019] In a seventh aspect, a first terminal device is provided, comprising a processor and a memory, wherein the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the method in the first aspect or its implementation manners.

[0020] In an eighth aspect, a second terminal device is provided, comprising a processor and a memory, wherein the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the method in the second aspect or its implementation manner.

[0021] In a ninth aspect, a network device is provided, comprising a processor and a memory, wherein the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the method in the third aspect or its implementation manners.

[0022] In a tenth aspect, a chip is provided for implementing the method in any aspect of the first to third aspects or in each of their implementations.

[0023] Specifically, the chip includes: a processor, which is used to call and run a computer program from a memory, so that a device equipped with the device executes a method in any one of the first to third aspects or its various implementations as described above.

[0024] In an eleventh aspect, a computer-readable storage medium is provided for storing a computer program, wherein the computer program enables a computer to execute the method in any one of the first to third aspects or any of their implementations.

[0025] In a twelfth aspect, a computer program product is provided, comprising computer program instructions, wherein the computer program instructions enable a computer to execute the method in any one of the first to third aspects above or in each of their implementations.

[0026] In a thirteenth aspect, a computer program is provided, which, when executed on a computer, enables the computer to execute the method in any one of the first to third aspects or in each of its implementations.

[0027] Through the above technical solution, the first terminal can receive first indication information sent by other devices (for example, the second terminal), and the first indication information is used to instruct the first terminal to send a first channel state information CSI report. Further, the first terminal determines a first carrier, and the first carrier is used to send the first CSI report. Further, the first terminal can send the first CSI report on the first carrier, thereby providing a CSI reporting method under a multi-carrier mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of a communication system architecture applied in an embodiment of the present application.

[0029] Figure 2 It is a schematic diagram of another communication system architecture applied in an embodiment of the present application.

[0030] Figure 3 It is a flowchart of a wireless communication method provided in an embodiment of the present application.

[0031] Figure 4 It is a schematic interaction diagram of a wireless communication method provided in an embodiment of the present application.

[0032] Figure 5 It is a schematic interaction diagram of another wireless communication method provided in an embodiment of the present application.

[0033] Figure 6 It is a schematic block diagram of a terminal device provided according to an embodiment of the present application.

[0034] Figure 7 It is a schematic block diagram of another terminal device provided according to an embodiment of the present application.

[0035] Figure 8 It is a schematic block diagram of a network device provided according to an embodiment of the present application.

[0036] Fig. 9 It is a schematic block diagram of a communication device provided according to an embodiment of the present application.

[0037] Fig.10It is a schematic block diagram of a chip provided according to an embodiment of the present application.

[0038] Fig.11 It is a schematic block diagram of a communication system provided according to an embodiment of the present application. DETAILED DESCRIPTION

[0039] The following will describe the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. For the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0040] The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: Global System of Mobile communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, Advanced Long Term Evolution (LTE-A) system, New Radio (NR) system, NR system evolution system, LTE on unlicensed spectrum (LTE-U) system, NR on unlicensed spectrum (NR-U) system, Non-Terrestrial Networks (NTN) system, Universal Mobile Telecommunication System (UMTS), Wireless Local Area Networks (WLAN), Wireless Fidelity (Wireless Fidelity) system. Fidelity, WiFi), fifth-generation communication (5th-Generation, 5G) system or other communication systems, etc.

[0041] Generally speaking, traditional communication systems support a limited number of connections and are easy to implement. However, with the development of communication technology, mobile communication systems will not only support traditional communications, but will also support, for example, device to device (Device to Device, D2D) communication, machine to machine (Machine to Machine, M2M) communication, machine type communication (Machine Type Communication, MTC), vehicle to vehicle (V2V) communication, or vehicle to everything (V2X) communication, etc. The embodiments of the present application can also be applied to these communication systems.

[0042] Optionally, the communication system in the embodiment of the present application can be applied to a carrier aggregation (CA) scenario, a dual connectivity (DC) scenario, or a standalone (SA) networking scenario.

[0043] Optionally, the communication system in the embodiment of the present application can be applied to an unlicensed spectrum, wherein the unlicensed spectrum can also be considered as a shared spectrum; or, the communication system in the embodiment of the present application can also be applied to an authorized spectrum, wherein the authorized spectrum can also be considered as an unshared spectrum.

[0044] The embodiments of the present application describe various embodiments in conjunction with network devices and terminal devices, wherein the terminal device may also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.

[0045] The terminal device can be a station (STATION, ST) in a WLAN, a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA) device, a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a next-generation communication system such as an NR network, or a terminal device in a future evolved Public Land Mobile Network (PLMN) network, etc.

[0046] In the embodiments of the present application, the terminal device can be deployed on land, including indoors or outdoors, handheld, wearable or vehicle-mounted; it can also be deployed on the water surface (such as ships, etc.); it can also be deployed in the air (for example, on airplanes, balloons and satellites, etc.).

[0047] In the embodiment of the present application, the terminal device can be a mobile phone, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self driving, a wireless terminal device in remote medical, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, or a wireless terminal device in a smart home, etc.

[0048] As an example but not limitation, in the embodiments of the present application, the terminal device may also be a wearable device. Wearable devices may also be referred to as wearable smart devices, which are a general term for wearable devices that are intelligently designed and developed using wearable technology for daily wear, such as glasses, gloves, watches, clothing, and shoes. A wearable device is a portable device that is worn directly on the body or integrated into the user's clothes or accessories. Wearable devices are not only hardware devices, but also powerful functions achieved through software support, data interaction, and cloud interaction. Broadly speaking, wearable smart devices include full-featured, large-sized, and fully or partially independent of smartphones, such as smart watches or smart glasses, as well as devices that only focus on a certain type of application function and need to be used in conjunction with other devices such as smartphones, such as various types of smart bracelets and smart jewelry for vital sign monitoring.

[0049] In an embodiment of the present application, the network device may be a device for communicating with a mobile device. The network device may be an access point (AP) in WLAN, a base station (Base Transceiver Station, BTS) in GSM or CDMA, a base station (NodeB, NB) in WCDMA, an evolved base station (EvolutionalNode B, eNB or eNodeB) in LTE, or a relay station or access point, or a vehicle-mounted device, a wearable device, and a network device or base station (gNB) in an NR network, or a network device in a future evolved PLMN network, or a network device in an NTN network, etc.

[0050] As an example but not limitation, in an embodiment of the present application, the network device may have a mobile characteristic, for example, the network device may be a mobile device. Optionally, the network device may be a satellite or a balloon station. For example, the satellite may be a low earth orbit (LEO) satellite, a medium earth orbit (MEO) satellite, a geostationary earth orbit (GEO) satellite, a high elliptical orbit (HEO) satellite, etc. Optionally, the network device may also be a base station set up in a location such as land or water.

[0051] In an embodiment of the present application, the network device can provide services for a cell, and the terminal device communicates with the network device through the transmission resources used by the cell (for example, frequency domain resources, or spectrum resources). The cell can be a cell corresponding to the network device (for example, a base station), and the cell can belong to a macro base station or a base station corresponding to a small cell. The small cells here may include: metro cells, micro cells, pico cells, femto cells, etc. These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.

[0052] It should be understood that the terms "system" and "network" are often used interchangeably in this article. The term "and / or" in this article is only a description of the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0053] The terms used in the implementation mode of this application are only used to explain the specific embodiments of this application, and are not intended to limit this application. The terms "first", "second", "third" and "fourth" in the specification and claims of this application and the drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0054] It should be understood that the "indication" mentioned in the embodiments of the present application can be a direct indication, an indirect indication, or an indication of an association relationship. For example, A indicates B, which can mean that A directly indicates B, for example, B can be obtained through A; it can also mean that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also mean that there is an association relationship between A and B.

[0055] In the description of the embodiments of the present application, the term "corresponding" may indicate a direct or indirect correspondence between two items, or an association relationship between the two items, or a relationship between indication and being indicated, configuration and being configured, and the like.

[0056] In the embodiments of the present application, "pre-definition" or "pre-configuration" can be implemented by pre-saving corresponding codes, tables or other methods that can be used to indicate relevant information in a device (for example, including a terminal device and a network device), and the present application does not limit the specific implementation method. For example, pre-definition can refer to what is defined in the protocol.

[0057] In the embodiments of the present application, the “protocol” may refer to a standard protocol in the communication field, for example, it may include an LTE protocol, an NR protocol, and related protocols used in future communication systems, and the present application does not limit this.

[0058] Before introducing the technical solution of this application, some background technical knowledge involved in this application is first introduced and explained. The following related technologies can be combined arbitrarily with the technical solution of the embodiment of this application as optional solutions, and they all belong to the protection scope of the embodiment of this application. The embodiment of this application includes at least part of the following contents.

[0059] Figure 1 1 is a schematic diagram of a communication system applicable to an embodiment of the present application. The transmission resources of the vehicle-mounted terminals (vehicle-mounted terminal 121 and vehicle-mounted terminal 122) are allocated by the base station 110, and the vehicle-mounted terminals send data on the sidelink according to the resources allocated by the base station 110. Specifically, the base station 110 can allocate resources for a single transmission to the terminal, or can allocate resources for a semi-static transmission to the terminal.

[0060] Figure 2Schematic diagram of another communication system applicable to the embodiment of the present application. The vehicle-mounted terminal (vehicle-mounted terminal 131 and vehicle-mounted terminal 132) autonomously selects transmission resources on the resources of the side link for data transmission. Optionally, the vehicle-mounted terminal can randomly select transmission resources, or select transmission resources by listening.

[0061] LTE D2D / Vehicle to X (V2X): Device to device communication is a sidelink (SL) transmission technology based on device to device (D2D), also known as sidelink communication technology. Unlike the traditional cellular system where communication data is received or sent by base stations, the Internet of Vehicles system uses terminal to terminal direct communication, so it has higher spectrum efficiency and lower transmission latency. 3GPP defines two transmission modes: Mode A and Mode B.

[0062] Mode A: The transmission resources of the terminal device are allocated by the access network device (such as a base station). The terminal device transmits communication data on the side link according to the transmission resources allocated by the access network device. The access network device can allocate transmission resources for a single transmission to the terminal device, or allocate transmission resources for a semi-static transmission to the terminal device.

[0063] Mode B: The terminal device selects transmission resources from the resource pool to transmit communication data. Specifically, the terminal device can select transmission resources from the resource pool by listening, or by random selection.

[0064] In 3GPP, D2D is divided into different stages for research.

[0065] Proximity based service (ProSe): In 3GPP Release 12 and Release 13 (Rel-12 / 13), device-to-device communication is studied for ProSe scenarios, which are mainly for public safety services. In ProSe, by configuring the location of resource pools in the time domain, for example, resource pools are discontinuous in the time domain, so that the terminal (User Equipment, UE) can send / receive data discontinuously on the SL, thereby achieving power saving.

[0066] Vehicle to Everything (V2X): In Rel-14 / 15, the V2X system studies the scenario of vehicle-to-vehicle communication, which is mainly aimed at the business of relatively high-speed vehicle-to-vehicle and vehicle-to-person communication. In V2X, since the on-board system has continuous power supply, power efficiency is not the main problem, but the delay of data transmission is the main problem. Therefore, the system design requires terminal devices to send and receive continuously.

[0067] Further Enhanced Device to Device (FeD2D): In Rel-14, this scenario studies the scenario of wearable devices accessing the network through mobile phones, mainly for low mobile speed and low power access scenarios. In FeD2D, in the pre-research stage, 3GPP concluded that the base station can configure the discontinuous reception (DRX) parameters of the remote terminal through a relay terminal, but because the subject has not entered the standardization stage, the specific details of how to configure DRX have not been concluded.

[0068] NR V2X: Based on LTE V2X, NR V2X is not limited to broadcast scenarios, but is further expanded to unicast and multicast scenarios, and the application of V2X is studied in these scenarios.

[0069] Similar to LTE V2X, NR V2X will also define the above-mentioned two resource authorization modes, Mode A (named Mode-1 in NR V2X) and Mode B (named Mode-2 in NR V2X); further, the user may be in a mixed mode, that is, Mode-1 can be used to acquire resources, and Mode-2 can be used to acquire resources at the same time. The resource acquisition is indicated by sidelink authorization, that is, the sidelink authorization indicates the time-frequency position of the corresponding physical sidelink control channel (Physical Sidelink Control Channel, PSCCH) and physical sidelink shared channel (Physical Sidelink Shared Channel, PSSCH) resources.

[0070] Different from LTE V2X, in addition to the feedback-free, UE-initiated Hybrid Automatic Repeat reQuest (HARQ) retransmission, NR V2X introduces feedback-based HARQ retransmission, which is not limited to unicast communication but also includes multicast communication.

[0071] LTE-V2X CA: Carrier selection in LTE-V2X Carrier Aggregation (CA) is accomplished by the following mechanism: the upper layer configures the mapping relationship between service type and carrier, that is, for a certain service type, the upper layer indicates the available carrier (set) to the access stratum (AS).

[0072] Furthermore, the AS layer configures the available carrier set for each logical channel and the channel busy bit rate (CBR) measurement threshold configured for the data priority in each resource pool. The UE measures the CBR value in the resource pool and compares it with the CBR threshold corresponding to the priority of the transmitted data. If the measured value is lower than the threshold, the carrier is considered available.

[0073] NR Uu CA: CA is a bandwidth extension technology that has been supported since the LTE-Advanced standard. It can aggregate multiple component carriers (CCs) together and be received or sent simultaneously by one UE. According to the range of the aggregated carriers, CA can be divided into intra-band CA and inter-band CA. One of the main uses of intra-band CA is for scenarios where the cell carrier bandwidth is greater than the single carrier bandwidth capability of the UE. In this case, the UE can use CA to operate in a "wide carrier". For example, the base station supports a 300MHz carrier, while the UE only supports a maximum of 100MHz carrier. In this case, the UE can use CA to achieve broadband operation greater than 100MHz. The aggregated carriers can be adjacent or non-adjacent.

[0074] When the terminal and the network communicate through CA, the primary cell (PCell) and the secondary cell (SCell) may be configured at the same time. In the NR R15 version, a beam failure recovery mechanism is designed for PCell and secondary primary cell (PSCell), and its main functional modules (or main steps) are divided into 4:

[0075] Beam Failure Detection (BFD).

[0076] New Beam Identification (NBI)

[0077] Beam Failure Recovery Request (BFRQ)

[0078] Network-side response.

[0079] The terminal measures the Physical Downlink Control Channel (PDCCH) to determine the link quality corresponding to the downlink transmission beam. If the corresponding link quality is very poor, it is considered that a beam failure has occurred in the downlink beam. The terminal will also measure a set of candidate beams and select a beam that meets a certain threshold as a new beam. The terminal then notifies the network of a beam failure through the Beam Failure Recovery request (BFRQ) process and reports a new beam. After the network receives the BFRQ information sent by a terminal, it knows that the terminal has experienced a beam failure and chooses to send PDCCH from the new beam. When the terminal receives the PDCCH sent by the network on the new beam, it believes that the response information from the network side has been correctly received. At this point, the beam failure recovery process is successfully completed.

[0080] The sidelink channel state information reporting process is used to provide the other party UE in unicast communication with the sidelink channel state information, thereby facilitating the other party UE to make corresponding access layer parameter adjustments, including but not limited to power control and modulation and demodulation mode adjustment.

[0081] For the triggering conditions of the channel state information report, the RRC layer can configure a delay threshold to control the sidelink channel state information reporting process. Specifically, if the sidelink channel state information report has been triggered by the other UE, if the current UE successfully obtains the sidelink resource authorization for the other UE within the delay threshold, then the current UE will generate a channel state information report for the other UE accordingly and send it; otherwise, it can be considered that even if the sidelink channel state information is generated, it is outdated, that is, it cannot reflect the channel quality of the current UE and the other UE in time, so even if the sidelink resource authorization for the other UE is obtained, the sending of the channel state information report will be canceled; at the same time, if the UE is in the network scheduling resource selection mode, if the sidelink resource authorization cannot meet the delay threshold, the UE will trigger a scheduling request to obtain the sidelink resource authorization.

[0082] Sidelink Logical Channel Prioritization (LCP) processing refers to the process of prioritizing different logical channels and determining the amount of data to be transmitted for different logical channels / MAC CE (Medium Access Control Control Element) when a new MAC PDU (Protocol Data Unit) is generated.

[0083] The constraints considered for NR-V2X are as follows:

[0084] If the current resource authorization is a type one configured resource authorization, the data carried by the logical channel is allowed to be carried by the type one configured resource authorization; according to the configured resource authorization list associated with the logical channel, the data carried by the logical channel is allowed to be carried by the currently configured resource authorization.

[0085] After that, within the set of logical channels that meet the conditions, it is necessary to further select the logical channels that need to be carried, and finally determine the amount of data that each logical channel can carry. This is divided into two steps:

[0086] Step 1, for the selection of the target address: in the side link logical channel to which the target address belongs and which has data to be sent, the logical channel with the highest priority level associated with the currently selectable logical signal is included.

[0087] Step 2: For the selected target address, select the logical channel; in the logical channels belonging to the selected target address and satisfying the above restriction conditions, allocate resources to the side chain logical channel with the highest priority.

[0088] Both LTE-V2X and NR-V2X support data transmission under network scheduling, including: Mode 1 and Mode 3 under LTE-V2X, Mode 1 under NR-V2X. When the UE operates in the above mode, the resource authorization for sidelink data transmission comes from the network, that is, the network sends resource authorization to the sending UE, and the sending UE uses the resource to perform sidelink transmission first. Similar to the uplink transmission of the Uu interface, since the network side does not know the current data cache status of the UE side, the UE needs to report the current data cache status of the UE to the network, thereby triggering the network to send resource authorization. Simply put, the UE sends a Scheduling Request (SR) or random access to the base station, and then sends a sidelink buffer status report (BSR). Based on the sidelink BSR, the base station can determine that the UE has data to be transmitted for sidelink communication, and estimate the resources required to transmit the data. The base station can use the configured RNTI for the sidelink to schedule transmission resources for sidelink communication.

[0089] The definitions of the different fields for the sidelink BSR are as follows:

[0090] Target address identification: The "target index" field is used to identify the target address of the sidelink communication. The UE sets the value to the index of the relevant target address in the target address list reported in the SidelinkUEInformation message. If the UE reports multiple target address lists in the SidelinkUEInformation message, the UE arranges the multiple target address lists in serial order to index the corresponding target addresses. Specifically, since the SidelinkUEInformation message in LTE-V2X defines target address lists for different frequencies, for a certain target address, when it can be used for more than one frequency, there will be a situation where one target address corresponds to multiple target indexes, which will cause some target index redundancy. This problem is not solved in LTE-V2X. In NR-V2X, the signaling structure of the SidelinkUEInformation message is modified to address this problem, that is, the frequency list is placed in different target address structures, thereby avoiding this problem.

[0091] Logical Channel Group Identifier: This field identifies the logical channel group for which the UE buffer status is being reported. Here, the logical channel group identifier is used to indicate the priority information (PPPP) and reliability information (PPPR) associated with the data to be transmitted. Specifically, the UE reports the amount of data associated with one or more PPPP and / or PPPR values ​​via the sidelink BSR. The mapping of PPPP and PPPR values ​​to logical channel groups can be configured by the base station, and the PPPP value and PPPR value are reflected by the logical channel group ID contained in the sidelink BSR.

[0092] Buffer size: Similar to the definition of uplink BSR, this field defines the total amount of data for all logical channels of the relevant LCG after generating MAC PDU, including all data available for transmission in the RLC layer and PDCP layer (regardless of the size of the RLC and MAC message headers).

[0093] For NR-V2X, the format definition of the sidelink BSR is similar, except that: the target address identifier is extended from 4 bits to 5 bits, the logical channel group identifier is extended from 2 bits to 3 bits, and the cache size is extended from 6 bits to 8 bits. Therefore, for a logical channel group under a target address, 2 bytes are required, so there is no need to define the sidelink BSR format separately for the number of even items and the number of odd items. For the triggering of the sidelink BSR, in addition to the following triggering conditions similar to the uplink BSR:

[0094] New data to be transmitted appears in the RLC entity or PDCP entity (if there is other data to be transmitted, the priority of the new data is higher than the priority of any logical channel group to be transmitted with the same target address, or the target address has no other data to be transmitted at present); after the space for resource authorization is allocated for the data and the filling BSR for the uplink channel is triggered, the number of remaining bits is equal to or greater than the size of the sidelink BSR (buffer information of at least one logical channel group containing at least one target address); the sidelink BSR retransmission timer expires, and the MAC entity has data available for sidelink transmission; the sidelink BSR periodic timer expires.

[0095] In LTE-V2X, the sidelink and uplink use the same SR resources without distinction. Therefore, the network cannot distinguish from the received SR resources whether the requested resource is for the sidelink or the uplink.

[0096] In NR-V2X, the use of sidelink SR resources is further optimized:

[0097] First, the network can configure the UE to use different SR resources for the uplink and sidelink, respectively, which solves the problem of using mixed SR resources for the sidelink and uplink in LTE-V2X.

[0098] Secondly, in order to further distinguish different services within the side link, the network can configure the UE to use different SR resources for different logical channels of the side link. In this way, the network can not only know through the SR resources that the side link triggered the resource request, but also know through the SR resources which logical channel of the side link triggered the resource request.

[0099] Again, since the sidelink CSI report introduced in NR-V2X is transmitted via the sidelink MAC CE, its transmission also requires the acquisition of corresponding sidelink resources. Therefore, NR-V2X also defines the relevant process of triggering SR by the sidelink CSI report and the corresponding SR cancellation conditions. Specifically, when the size of the sidelink resource grant can accommodate the triggered but not yet canceled sidelink CSI report, the SR triggered by the sidelink CSI report for the relevant target address will be canceled, and the relevant SR timer should be stopped.

[0100] In NR V2X, currently only single carrier and CSI reporting mechanism under single carrier are supported. After the introduction of multi-carrier mechanism, the CSI reporting mechanism needs to be enhanced accordingly. On the UE side that sends CSI report, it is necessary to consider sending CSI report on a specific carrier.

[0101] To facilitate understanding of the technical solutions of the embodiments of the present application, the technical solutions of the present application are described in detail below through specific embodiments. The above related technologies can be combined arbitrarily with the technical solutions of the embodiments of the present application as optional solutions, and they all belong to the protection scope of the embodiments of the present application. The embodiments of the present application include at least part of the following contents.

[0102] Figure 3 A flowchart of a wireless communication method provided by an exemplary embodiment of the present application is shown. The method is executed by a first terminal. The method includes the following contents:

[0103] 310. Receive first indication information, where the first indication information is used to instruct a first terminal to send a first channel state information CSI report. 320. Determine a first carrier, where the first carrier is used to send the first CSI report.

[0104] In some embodiments, the method further comprises: sending the first CSI report on the first carrier.

[0105] In some embodiments, the first indication information is CSI request information. The first terminal receives the CSI request information sent by the second terminal, further determines the first carrier, and then sends a first CSI report to the second terminal on the first carrier.

[0106] In some embodiments, the time when the first terminal receives the first indication information is one of the following: if the first indication information is physical layer information, it is when the physical layer informs the MAC layer of the first indication information; if the first indication information is MAC layer information, it is when the MAC layer information is decoded; if it is RRC layer information, it is when the RRC layer indicates the MAC layer of the first indication information.

[0107] In some embodiments, there are multiple carriers that can be used to transmit data. After receiving the first indication information, the first terminal needs to perform carrier selection and then determine the first carrier, so as to send the first CSI report on the first carrier.

[0108] In some embodiments, the first carrier is at least one of: a carrier configured by the network, a carrier configured by the second terminal, a carrier specified by the protocol, a carrier negotiated by both terminals, a default carrier, a carrier for receiving the first indication information, and a carrier for receiving a CSI signal.

[0109] For example, the first carrier is a carrier for receiving the first indication information. After receiving the first indication information, the first terminal sends the first CSI report on the carrier for receiving the first indication information.

[0110] For another example, the first carrier is a carrier negotiated by both terminals, that is, the first carrier is a carrier negotiated by the first terminal and the second terminal. After receiving the first indication information sent by the second terminal, the first terminal sends a first CSI report to the second terminal on the negotiated carrier.

[0111] It should be noted here that the first carrier may be one or more, and the first terminal may send the CSI report on one carrier or on multiple carriers at the same time.

[0112] In some embodiments, the method further includes executing a logical channel priority LCP process. Specifically, when the first carrier is a second carrier, the target address corresponding to the first CSI report, and / or the logical channel associated with the target address, and / or the first CSI report media access control element MAC CE are selected; when the first carrier is not a second carrier, the target address corresponding to the first CSI report is not selected, or: the target address corresponding to the first CSI report and / or the logical channel associated with the target address are selected, and the first CSI report MAC CE is not selected; wherein the second carrier is the carrier where the currently available resources are located.

[0113] In some embodiments, the first CSI report is sent on the first carrier upon selecting a target address corresponding to the first CSI report, a logical channel associated with the target address, and the first CSI report MAC CE.

[0114] For example, if the first carrier is the carrier where the currently available resources are located, that is, the first carrier currently has resources that can be used to transmit data, and the resources can be used to transmit the first CSI report, then the first terminal can select the target address corresponding to the first CSI report that has not been sent and the logical channel associated with the target address, as well as the first CSI report MAC CE, and can send the first CSI report on the first carrier. In this case, the LCP process successfully assembles the CSI report.

[0115] In some embodiments, determining the first carrier includes: determining the first carrier among multiple carriers according to CSI configuration information, wherein the CSI configuration information is specified by a protocol, or determined by a network device, or determined by a terminal device, or pre-configured.

[0116] For example, the CSI configuration information may be determined by the first terminal (the UE that receives the CSI request).

[0117] For another example, the CSI configuration information may be determined by the second terminal (the UE that sends the CSI request).

[0118] In some embodiments, the method further includes: receiving first configuration information, where the first configuration information is used to indicate the CSI configuration information.

[0119] In some embodiments, the method further includes: sending second configuration information to the network device, where the second configuration information is used to indicate the CSI configuration information.

[0120] Optionally, the first terminal sends the second configuration information to the network device via RRC signaling.

[0121] In some embodiments, the CSI configuration information includes at least one of the following: carrier configuration for sending reference signals, carrier configuration for CSI report request information, carrier configuration for CSI report measurement, carrier configuration for CSI report sending, delay timer value, time-frequency domain position of reference signals, and antenna configuration.

[0122] For example, the first terminal determines the first carrier from multiple carriers according to the carrier configuration sent by the CSI report in the CSI configuration information.

[0123] In some embodiments, the first terminal receives CSI configuration information sent by the second terminal, and then reports the CSI configuration information to the network device through RRC signaling.

[0124] In some embodiments, the method further comprises determining a first resource, wherein the first resource is used to send the first CSI report.

[0125] In some embodiments, the first resource is a resource on the first carrier, and the first resource is used to send the first CSI report. The first terminal device sends the first CSI report on the first carrier using the first resource.

[0126] In some embodiments, determining the first resource includes: triggering resource selection on the first carrier to determine the first resource.

[0127] In some embodiments, if there are available resources on the first carrier, the available resources are determined as the first resources.

[0128] For example, in mode 2 (the terminal device selects transmission resources in the resource pool to transmit communication data), after receiving the first indication information sent by the second terminal, the first terminal performs carrier selection, determines the first carrier, and then triggers resource selection on the first carrier to determine the first resource, thereby using the first resource to send the first CSI report to the second terminal on the first carrier.

[0129] In some other embodiments, determining the first resource includes: if there are available resources on the first carrier before the first timer expires, determining the available resources as the first resources; if there are no available resources on the first carrier before the first timer expires, sending a first scheduling request SR and / or a first buffer status report BSR to the network device to request the first resource.

[0130] In some embodiments, the method further includes: receiving second indication information sent by the network device, where the second indication information is used to indicate the first resource.

[0131] Optionally, the first BSR includes target address identification information and / or logical channel identification information.

[0132] Optionally, the first timer is a delay requirement timer.

[0133] For example, in mode 1 (the transmission resources of the terminal device are allocated by the access network device, and the terminal device transmits communication data on the side link according to the transmission resources allocated by the access network device), after receiving the first indication information sent by the second terminal, the first terminal starts the delay requirement timer. If there are available resources on the first carrier before the delay requirement timer expires, the first CSI report is sent on the first carrier using the available resources; if there are no available resources on the first carrier before the delay requirement timer expires, the first terminal triggers the BSR process and applies to the network device for resources to send the first CSI report. Specifically, the first terminal sends a first BSR to the network device, and the network device indicates the resources required to send the first CSI report through the target address identification information (target address number) and logical channel identification information (logical channel group number) in the BSR (the carrier where the resources are located is the carrier for sending the first CSI report).

[0134] In some embodiments, sending a first SR to a network device includes: sending the first SR according to a first SR configuration corresponding to the first CSI report, wherein the first SR configuration is network configured, or specified by a protocol, or is default.

[0135] In some embodiments, different SR configurations correspond to different sidelink carriers and / or different CSI reports. The network device can determine the carrier and resources for transmitting the first CSI report based on the SR configuration, and then indicate the resources to the first terminal.

[0136] In other embodiments, there is only one SR configuration, and the network device determines the carrier and resources for transmitting the first CSI report according to the CSI configuration (CSI configuration information) and the corresponding target address, and then indicates the resources to the first terminal.

[0137] For example, in mode 1 (the transmission resources of the terminal device are allocated by the access network device, and the terminal device transmits communication data on the side link according to the transmission resources allocated by the access network device), after receiving the first indication information sent by the second terminal, the first terminal starts the delay requirement timer. If there are available resources on the first carrier before the delay requirement timer times out, the first CSI report is sent on the first carrier using the available resources; if there are no available resources on the first carrier before the delay requirement timer times out, the first terminal triggers the SR process and applies to the network device for resources to send the first CSI report. Specifically, the first terminal sends a first SR to the network device, and the network device indicates the resources required to send the first CSI report through the first SR.

[0138] Figure 4A flowchart of a wireless communication method provided by an exemplary embodiment of the present application is shown. The method includes at least part of the following:

[0139] S410, the second terminal sends first indication information to the first terminal, and the first indication information is used to instruct the first terminal to send a first CSI report; S420, the first terminal performs carrier selection and determines a first carrier; S430, the first terminal performs resource selection on the first carrier and determines a first resource; S440, the first terminal uses the first resource on the first carrier to send the first CSI report to the second terminal.

[0140] In some embodiments, the first indication information is CSI request information. The first terminal receives the CSI request information sent by the second terminal, further determines the first carrier, and then sends a first CSI report to the second terminal on the first carrier.

[0141] In some embodiments, the second terminal device receives the first CSI report on the first carrier.

[0142] In some embodiments, the time when the first terminal receives the first indication information is one of the following: if the first indication information is physical layer information, it is when the physical layer informs the MAC layer of the first indication information; if the first indication information is MAC layer information, it is when the MAC layer information is decoded; if it is RRC layer information, it is when the RRC layer indicates the MAC layer of the first indication information.

[0143] In some embodiments, the first carrier is at least one of: a carrier configured by the network, a carrier configured by the second terminal, a carrier specified by the protocol, a carrier negotiated by both terminals, a default carrier, a carrier for receiving the first indication information, and a carrier for receiving a CSI signal.

[0144] In some embodiments, the method further includes executing a logical channel priority LCP process. Specifically, when the first carrier is a second carrier, the target address corresponding to the first CSI report, and / or the logical channel associated with the target address, and / or the first CSI report media access control element MAC CE are selected; when the first carrier is not a second carrier, the target address corresponding to the first CSI report is not selected, or: the target address corresponding to the first CSI report and / or the logical channel associated with the target address are selected, and the first CSI report MAC CE is not selected; wherein the second carrier is the carrier where the currently available resources are located.

[0145] For example, when the first carrier is the carrier where the currently available resources are located, the target address corresponding to the first CSI report, the logical channel associated with the target address, and the first CSI report MAC CE are selected, so as to send the first CSI report on the first carrier.

[0146] In some embodiments, determining the first resource includes: triggering resource selection on the first carrier to determine the first resource.

[0147] In some embodiments, if there are available resources on the first carrier, the available resources are determined as the first resources.

[0148] For example, in mode 2 (the terminal device selects transmission resources in the resource pool to transmit communication data), after receiving the first indication information sent by the second terminal, the first terminal performs carrier selection, determines the first carrier, and then triggers resource selection on the first carrier to determine the first resource, thereby using the first resource to send the first CSI report to the second terminal on the first carrier.

[0149] Figure 5 A flowchart of a wireless communication method provided by another exemplary embodiment of the present application is shown. The method includes at least part of the following contents:

[0150] S530, the second terminal sends first indication information to the first terminal, and the first indication information is used to instruct the first terminal to send a first CSI report; S540, the first terminal sends a first scheduling request SR and / or a first buffer status report BSR to the network device to request a first resource, and the first resource is used for the first terminal to send the first CSI report; S550, the network device sends second indication information to the first terminal, and the second indication information is used to indicate the first resource; S560, the first terminal sends the first CSI report to the second terminal.

[0151] In some embodiments, before S530, the method further includes:

[0152] S511, the second terminal sends first configuration information to the first terminal, where the first configuration information is used to indicate CSI configuration information; S512, the first terminal sends second configuration information to the network device, where the second configuration information is used to indicate the CSI configuration information.

[0153] For example, the first terminal receives the CSI configuration information sent by the second terminal, and then reports the CSI configuration information to the network device through RRC signaling.

[0154] In some other embodiments, before S530, the method further includes:

[0155] S521, the first terminal receives first configuration information sent by a network device, where the first configuration information is used to indicate CSI configuration information; S522, the first terminal sends second configuration information to the second terminal, where the second configuration information is used to indicate the CSI configuration information.

[0156] For example, the first terminal receives CSI configuration information sent by the network device, and then sends the CSI configuration information to the second terminal.

[0157] In some embodiments, the CSI configuration information includes at least one of the following: carrier configuration for sending reference signals, carrier configuration for CSI report request information, carrier configuration for CSI report measurement, carrier configuration for CSI report sending, delay timer value, time-frequency domain position of reference signals, and antenna configuration.

[0158] In some embodiments, after receiving the first indication information sent by the second terminal, the first terminal starts the delay requirement timer, and if there are no available resources on the first carrier before the first timer times out, sends a first scheduling request SR and / or a first buffer status report BSR to the network device to request the first resource;

[0159] Optionally, the first BSR includes target address identification information and / or logical channel identification information.

[0160] Optionally, the first timer is a delay requirement timer.

[0161] In some embodiments, in mode 1 (the transmission resources of the terminal device are allocated by the access network device, and the terminal device transmits communication data on the side link according to the transmission resources allocated by the access network device), after receiving the first indication information sent by the second terminal, the first terminal starts the delay requirement timer, and if there are available resources on the first carrier before the delay requirement timer expires, the first CSI report is sent on the first carrier using the available resources; if there are no available resources on the first carrier before the delay requirement timer expires, the first terminal triggers the BSR process and applies to the network device for resources to send the first CSI report. Specifically, the first terminal sends a first BSR to the network device, and the network device indicates the resources required to send the first CSI report through the target address identification information (target address number) and logical channel identification information (logical channel group number) in the BSR.

[0162] In some embodiments, sending the first SR to the network device includes sending the first SR according to a first SR configuration corresponding to the first CSI report.

[0163] In some embodiments, the network device determines a first resource based on the first SR configuration and a first correspondence, wherein the first correspondence is a correspondence between the SR configuration and the sidelink carrier.

[0164] Optionally, different SR configurations correspond to different side link carriers, and the network device can determine the carrier and resources for transmitting the first CSI report based on the SR configuration, and then indicate the resources to the first terminal.

[0165] In some embodiments, the SR configuration is network configured, or protocol specified, or default.

[0166] In other embodiments, there is only one SR configuration, and the network device determines the carrier and resources for transmitting the first CSI report according to the CSI configuration (CSI configuration information) and the corresponding target address, and then indicates the resources to the first terminal.

[0167] For example, in mode 1 (the transmission resources of the terminal device are allocated by the access network device, and the terminal device transmits communication data on the side link according to the transmission resources allocated by the access network device), after receiving the first indication information sent by the second terminal, the first terminal starts the delay requirement timer. If there are available resources on the first carrier before the delay requirement timer times out, the first CSI report is sent on the first carrier using the available resources; if there are no available resources on the first carrier before the delay requirement timer times out, the first terminal triggers the SR process and applies to the network device for resources to send the first CSI report. Specifically, the first terminal sends a first SR to the network device, and the network device indicates the resources required to send the first CSI report through the first SR.

[0168] Combination of the above Figures 3 to 5 , describes in detail the method embodiment of the present application, and the following is combined with Figures 6 to 8 , the device embodiments of the present application are described in detail. It should be understood that the device embodiments and the method embodiments correspond to each other, and similar descriptions can refer to the method embodiments.

[0169] Figure 6 FIG. 6 shows a schematic block diagram of a first terminal 600 according to an embodiment of the present application. Figure 6 As shown, the first terminal 600 includes:

[0170] The first communication unit 610 is configured to receive first indication information, where the first indication information is used to instruct the first terminal to send a first channel state information CSI report;

[0171] The first processing unit 620 is configured to determine a first carrier, where the first carrier is used to send the first CSI report.

[0172] In some embodiments, the first carrier is at least one of: a carrier configured by the network, a carrier configured by the second terminal, a carrier specified by the protocol, a carrier negotiated by both terminals, a default carrier, a carrier for receiving the first indication information, and a carrier for receiving a CSI signal.

[0173] In some embodiments, the first communication unit is further configured to: send the first CSI report on the first carrier.

[0174] In some embodiments, the first processing unit is further configured to execute a logical channel priority LCP process.

[0175] In some embodiments, the LCP process includes:

[0176] In a case where the first carrier is a second carrier, selecting a target address corresponding to the first CSI report, and / or a logical channel associated with the target address, and / or a media access control element MAC CE of the first CSI report;

[0177] In a case where the first carrier is not the second carrier, not selecting a target address corresponding to the first CSI report, or:

[0178] Select a target address corresponding to the first CSI report and / or a logical channel associated with the target address, and do not select the first CSI report MAC CE;

[0179] The second carrier is a carrier where currently available resources are located.

[0180] In some embodiments, the first communication unit is further used to: send the first CSI report on the first carrier by selecting a target address corresponding to the first CSI report, a logical channel associated with the target address, and the first CSI report MAC CE.

[0181] In some embodiments, the determining the first carrier includes: determining a first resource, the first resource being a resource on the first carrier, the first resource being used to send the first CSI report;

[0182] In some embodiments, the determining the first resource includes: triggering resource selection on the first carrier to determine the first resource.

[0183] In some embodiments, the determining the first resource comprises: if there are available resources on the first carrier before the first timer times out, determining the available resources as the first resources; if there are no available resources on the first carrier before the first timer times out, sending a first scheduling request SR and / or a first buffer status report BSR to the network device to request the first resource. In some embodiments, the first BSR includes target address identification information and / or logical channel identification information.

[0184] In some embodiments, sending the first SR to the network device includes: sending the first SR according to a first SR configuration corresponding to the first CSI report, wherein the first SR configuration is network configured, or specified by a protocol, or is default.

[0185] In some embodiments, the first processing unit is further used to: receive second indication information sent by the network device, where the second indication information is used to indicate the first resource.

[0186] In some embodiments, the determining the first carrier includes: determining the first carrier among multiple carriers according to CSI configuration information, wherein the CSI configuration information is specified by a protocol, or determined by a network device, or determined by a terminal device, or pre-configured.

[0187] In some embodiments, the first communication unit is further used to: receive first configuration information, where the first configuration information is used to indicate the CSI configuration information.

[0188] In some embodiments, the first communication unit is further used to: send second configuration information to the network device, where the second configuration information is used to indicate the CSI configuration information.

[0189] Optionally, the first terminal sends the second configuration information to the network device via RRC signaling.

[0190] In some embodiments, the CSI configuration information includes at least one of the following: carrier configuration for sending reference signals, carrier configuration for CSI report request information, carrier configuration for CSI report measurement, carrier configuration for CSI report sending, delay timer value, time-frequency domain position of reference signals, and antenna configuration.

[0191] Figure 7 FIG. 8 is a schematic block diagram of a second terminal 700 according to an embodiment of the present application. Figure 7 As shown, the second terminal 700 includes:

[0192] The second communication unit 710 is used to send first indication information, where the first indication information is used to instruct the first terminal to send a first CSI report.

[0193] The second processing unit 720 is configured to determine a first carrier, where the first carrier is used to receive the first CSI report.

[0194] In some embodiments, the second communication unit is further used to: send first configuration information, where the first configuration information is used to indicate CSI configuration information.

[0195] In some embodiments, the CSI configuration information includes at least one of the following: carrier configuration for sending reference signals, carrier configuration for CSI report request information, carrier configuration for CSI report measurement, carrier configuration for CSI report sending, delay timer value, time-frequency domain position of reference signals, and antenna configuration.

[0196] In some embodiments, the second communication unit is further used to: receive the first CSI report sent by the first terminal device on the first carrier.

[0197] Figure 8 FIG. 8 is a schematic block diagram of a network device or communication device 800 according to an embodiment of the present application. Figure 8 As shown, the communication device 800 includes:

[0198] The communication unit 810 is configured to receive a first scheduling request SR and / or a first buffer status report BSR sent by a first terminal;

[0199] The processing unit 820 is configured to determine a first resource according to the first SR and / or the first BSR, where the first resource is used for the first terminal to send a first CSI report.

[0200] In some embodiments, the first BSR includes target address identification information and / or logical channel identification information.

[0201] In some embodiments, the determining the first resource includes: determining the first resource according to the target address identification information and the logical channel identification information.

[0202] In some embodiments, determining the first resource includes: determining the first resource according to the first SR and CSI configuration information, wherein the CSI configuration information is specified by a protocol, or determined by the network device, or pre-configured, or determined by a second terminal.

[0203] In some embodiments, the determining the first resource includes: determining a first SR configuration according to the first SR, and determining the first resource based on the first SR configuration, wherein the first SR configuration is network configured, or specified by a protocol, or is default.

[0204] In some embodiments, determining the first resource based on the first SR configuration includes: determining the first resource based on the first SR configuration and a first correspondence, wherein the first correspondence is a correspondence between the SR configuration and the sidelink carrier.

[0205] In some embodiments, the communication unit is further used to: send second indication information to the first terminal, where the second indication information is used to indicate the first resource.

[0206] In some embodiments, the communication unit is further used to: receive second configuration information, where the second configuration information is used to indicate the CSI configuration information.

[0207] Fig. 9 It is a schematic structural diagram of a communication device 900 provided in an embodiment of the present application. Fig. 9 The communication device 900 shown includes a processor 910, which can call and run a computer program from a memory to implement the method in the embodiment of the present application.

[0208] In some embodiments, Fig. 9 As shown, the communication device 900 may further include a memory 920. The processor 910 may call and run a computer program from the memory 920 to implement the method in the embodiment of the present application.

[0209] The memory 920 may be a separate device independent of the processor 910 , or may be integrated into the processor 910 .

[0210] In some embodiments, Fig. 9 As shown, the communication device 900 may further include a transceiver 930, and the processor 910 may control the transceiver 930 to communicate with other devices, specifically, may send information or data to other devices, or receive information or data sent by other devices.

[0211] The transceiver 930 may include a transmitter and a receiver. The transceiver 930 may further include an antenna, and the number of the antennas may be one or more.

[0212] In some embodiments, the communication device 900 may specifically be a network device of an embodiment of the present application, and the communication device 900 may implement the corresponding processes implemented by the network device in each method of the embodiment of the present application, which will not be described in detail here for the sake of brevity.

[0213] In some embodiments, the communication device 900 may specifically be a terminal device of an embodiment of the present application, and the communication device 900 may implement the corresponding processes implemented by the terminal device in each method of the embodiment of the present application, which will not be described in detail here for the sake of brevity.

[0214] Fig.10 It is a schematic structural diagram of the chip of an embodiment of the present application. Fig.10 The chip 1000 shown includes a processor 1010, which can call and run a computer program from a memory to implement the method in the embodiment of the present application.

[0215] Alternatively, if Fig.10 As shown, the chip 1000 may further include a memory 1020. The processor 1010 may call and run a computer program from the memory 1020 to implement the method in the embodiment of the present application.

[0216] The memory 1020 may be a separate device independent of the processor 1010 , or may be integrated into the processor 1010 .

[0217] Optionally, the chip 1000 may further include an input interface 1030. The processor 1010 may control the input interface 1030 to communicate with other devices or chips, and specifically, may obtain information or data sent by other devices or chips.

[0218] Optionally, the chip 1000 may further include an output interface 1040. The processor 1010 may control the output interface 1040 to communicate with other devices or chips, and specifically, may output information or data to other devices or chips.

[0219] Optionally, the chip can be applied to the first device in the embodiment of the present application, and the chip can implement the corresponding processes implemented by the first device in each method of the embodiment of the present application. For the sake of brevity, it will not be repeated here.

[0220] Optionally, the chip can be applied to the first terminal in the embodiment of the present application, and the chip can implement the corresponding processes implemented by the first terminal in each method of the embodiment of the present application. For the sake of brevity, it will not be repeated here.

[0221] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0222] Fig.11 1 is a schematic block diagram of a communication system 1100 provided in an embodiment of the present application. Fig.11 As shown, the communication system 1100 includes a terminal device 1110 and a network device 1120 .

[0223] Among them, the terminal device 1110 can be used to implement the corresponding functions implemented by the terminal device in the above method, and the network device 1120 can be used to implement the corresponding functions implemented by the network device in the above method. For the sake of brevity, they will not be repeated here.

[0224] It should be understood that the processor of the embodiment of the present application may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method embodiment can be completed by the hardware integrated logic circuit or software instructions in the processor. The above processor can be a general processor, a digital signal processor (Digital Signal Processor, DSP), an application-specific integrated circuit (Application Specific Integrated Circuit, ASIC), a field programmable gate array (Field Programmable Gate Array, FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components. The methods, steps and logic block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general processor can be a microprocessor or the processor can also be any conventional processor. The steps of the method disclosed in the embodiment of the present application can be directly embodied as a hardware decoding processor to perform, or the hardware and software modules in the decoding processor are combined and performed. The software module can be located in a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, and other mature storage media in the art. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

[0225] It can be understood that the memory in the embodiments of the present application can be a volatile memory or a non-volatile memory, or can include both volatile and non-volatile memories. Among them, the non-volatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory can be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct RAM bus random access memory (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0226] It should be understood that the above-mentioned memory is exemplary but not restrictive. For example, the memory in the embodiments of the present application may also be static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM), etc. That is to say, the memory in the embodiments of the present application is intended to include but not limited to these and any other suitable types of memory.

[0227] An embodiment of the present application also provides a computer-readable storage medium for storing a computer program.

[0228] Optionally, the computer-readable storage medium can be applied to the first device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the first device in the various methods of the embodiments of the present application. For the sake of brevity, they are not repeated here.

[0229] Optionally, the computer-readable storage medium can be applied to the first terminal in the embodiment of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the first terminal in the various methods of the embodiment of the present application. For the sake of brevity, they are not repeated here.

[0230] An embodiment of the present application also provides a computer program product, including computer program instructions.

[0231] Optionally, the computer program product can be applied to the first device in the embodiments of the present application, and the computer program instructions enable the computer to execute the corresponding processes implemented by the first device in the various methods of the embodiments of the present application. For the sake of brevity, they are not repeated here.

[0232] Optionally, the computer program product can be applied to the first terminal in the embodiment of the present application, and the computer program instructions enable the computer to execute the corresponding processes implemented by the first terminal in the various methods of the embodiment of the present application. For the sake of brevity, they are not repeated here.

[0233] The embodiment of the present application also provides a computer program.

[0234] Optionally, the computer program can be applied to the first device in the embodiments of the present application. When the computer program runs on a computer, the computer executes the corresponding processes implemented by the first device in the various methods of the embodiments of the present application. For the sake of brevity, they are not repeated here.

[0235] Optionally, the computer program can be applied to the first terminal in the embodiment of the present application. When the computer program runs on the computer, the computer executes the corresponding processes implemented by the first terminal in the various methods of the embodiment of the present application. For the sake of brevity, they are not repeated here.

[0236] 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 in 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. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0237] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0238] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0239] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple 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.

[0240] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0241] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application can be essentially or partly embodied in the form of a software product that contributes to the prior art. The computer software product is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0242] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A wireless communication method, applied to a first terminal, characterized in that: include: receiving first indication information, where the first indication information is used to instruct the first terminal to send a first channel state information CSI report; A first carrier is determined, where the first carrier is used to send the first CSI report.

2. The method according to claim 1, characterized in that The first carrier is at least one of the following: The carrier configured by the second terminal, the carrier negotiated by both terminals, the carrier for receiving the first indication information, and the carrier for receiving the CSI signal.

3. The method according to any one of claims 1 to 2, characterized in that: The method further comprises: Determine a first resource, where the first resource is used to send the first CSI report.

4. The method according to claim 3, characterized in that The determining the first resource comprises: If there are available resources on the first carrier, the available resources are determined as first resources.

5. The method according to claim 4, characterized in that The first carrier currently has resources available for transmitting data, and the resources can be used to transmit the first CSI report.

6. The method according to claim 3, characterized in that The determining the first resource comprises: If there are no available resources on the first carrier before the first timer times out, a first scheduling request SR and / or a first buffer status report BSR is sent to the network device to request the first resource.

7. The method according to claim 6, characterized in that The method further comprises: Receive second indication information sent by the network device, where the second indication information is used to indicate the first resource.

8. The method according to any one of claims 1 to 7, characterized in that The method further comprises: The first CSI report is sent on the first carrier.

9. The method according to any one of claims 1 to 8, characterized in that The method further comprises executing a logical channel priority (LCP) process, wherein the LCP process comprises: In a case where the first carrier is the carrier where currently available resources are located, a target address corresponding to the first CSI report, and / or a logical channel associated with the target address, and / or a first CSI report media access control element MAC CE are selected.

10. The method according to claim 9, characterized in that Upon selecting a target address corresponding to the first CSI report, a logical channel associated with the target address, and the first CSI report MAC CE, the first CSI report is sent on the first carrier.

11. A wireless communication method, applied to a second terminal, characterized in that: include: Send first indication information, where the first indication information is used to instruct the first terminal to send a first CSI report.

12. The method according to claim 11, characterized in that The method further comprises: A first carrier is determined, where the first carrier is used to receive the first CSI report.

13. The method according to claim 11 or 12, characterized in that: The method further comprises: Sending first configuration information, where the first configuration information is used to indicate CSI configuration information, and the CSI configuration information includes at least one of the following: The carrier configuration for sending reference signals, the carrier configuration for CSI report request information, the carrier configuration for CSI report measurement, the carrier configuration for sending CSI reports, the delay timer value, the time-frequency domain location of the reference signal, and the antenna configuration.

14. The method according to any one of claims 11 to 13, characterized in that: The method further comprises: Receive the first CSI report sent by the first terminal device.

15. A wireless communication method, applied to a network device, characterized in that: include: Receiving a first SR and / or a first BSR sent by a first terminal; A first resource is determined according to the first SR and / or the first BSR, where the first resource is used for the first terminal to send a first CSI report.

16. The method according to claim 15, characterized in that The determining the first resource comprises: The first resource is determined according to the first SR and CSI configuration information, wherein the CSI configuration information is specified by a protocol, or determined by the network device, or pre-configured, or determined by a terminal.

17. The method according to claim 15, characterized in that The determining the first resource comprises: According to the first SR, a first SR configuration corresponding to the first CSI report is determined, and the first resource is determined based on the first SR configuration.

18. The method according to claim 17, characterized in that The determining the first resource based on the first SR configuration includes: Based on the first SR configuration and a first correspondence, the first resource is determined, wherein the first correspondence is a correspondence between the SR configuration and the sidelink carrier, and the SR configuration is network configured, or specified by a protocol, or is default.

19. The method according to any one of claims 15 to 18, characterized in that The method further comprises: Sending second indication information to the first terminal, where the second indication information is used to indicate the first resource.

20. A first terminal device, characterized in that: include: A first communication unit, configured to receive first indication information, where the first indication information is used to instruct the first terminal to send a first CSI report; The first processing unit is configured to determine a first carrier, where the first carrier is used to send the first CSI report.

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