Communication method and communication device

Abstract

Disclosed are a communication method and a communication device, the communication method comprising: receiving indication information, the indication information indicating whether a BFD-RS is transmitted on a first resource, the first resource being a resource determined in a resource selection process and used for transmitting the BFD-RS, and control information carried by the first resource indicating a resource used for transmitting the indication information; and determining the BFI count according to the indication information. According to the invention, the accuracy of BFI counting can be improved.

Description

Technical Field

[0001] This application relates to the field of communication technologies, and in particular, to a communication method and a communication device. Background Art

[0002] When performing beam failure detection on a communication link between a base station and a terminal device, the base station periodically sends a beam failure detection reference signal (BFD-RS). If the measurement result measured by the terminal device at the corresponding periodic resource position does not meet the condition, a beam failure instance (BFI) count is triggered, that is, the BFI counter is incremented by 1. If the value of the BFI counter is greater than or equal to a threshold, beam reselection is triggered. When applying this beam failure detection scheme to sidelink beam failure detection, since the resource selection of mode 2 for sidelink transmission is based on resource awareness and supports priority-based transceiver conflict resolution, resource preemption, and re-evaluation mechanisms, these mechanisms cannot ensure that the periodic BFD-RS is definitely transmitted on the determined periodic resources, resulting in incorrect BFI counting problems. Summary of the Invention

[0003] Embodiments of this application provide a communication method and a communication device, which can improve the accuracy of BFI counting.

[0004] In a first aspect, embodiments of this application provide a communication method, the method including:

[0005] Receiving indication information, where the indication information indicates whether a BFD-RS is transmitted on a first resource, the first resource being a resource determined in a resource selection process for transmitting the BFD-RS, and control information carried on the first resource indicating a resource for transmitting the indication information;

[0006] Determining a BFI count according to the indication information.

[0007] Based on the description of the first aspect, a first terminal can receive indication information sent by a second terminal. The indication information can indicate whether the second terminal has transmitted a BFD-RS on a first resource. The control information carried on the first resource indicates a resource for transmitting the indication information. In other words, the resource where the indication information is located is a resource reserved and indicated by the control information transmitted by the second terminal on the first resource. The second terminal can transmit indication information on the reserved and indicated resource to indicate whether a BFD-RS is transmitted on the resource where the control information for making the reservation indication is located, facilitating the first terminal to determine whether to perform a BFI count and improving the accuracy of BFI counting.

[0008] In a possible implementation, determining the BFI count according to the indication information includes:

[0009] Determining the BFI count according to the measurement result on the first resource and the indication information.

[0010] Implementing this method can determine the BFI count by combining the measurement result on the first resource and the indication information, improving the accuracy of the BFI count.

[0011] In a possible implementation, determining the BFI count according to the measurement result on the first resource and the indication information includes:

[0012] When the reference signal receiving power (RSRP) measured on the first resource is less than the first threshold, and / or when the block error rate (BLER) determined according to the measurement result on the first resource is greater than the second threshold, increase the BFI count;

[0013] When the indication information indicates that the BFD-RS is transmitted on the first resource, do not increase the BFI count; and / or when the indication information indicates that the BFD-RS is not transmitted on the first resource, reduce the BFI count.

[0014] Implementing this method increases the BFI count when the RSRP measured on the first resource or the BLER obtained according to the measurement result is greater than the second threshold. After the first terminal subsequently receives the indication information, it can further adjust the previous BFI count, thereby improving the accuracy of the BFI count.

[0015] In a possible implementation, determining the BFI count according to the measurement result on the first resource and the indication information includes:

[0016] When the RSRP measured on the first resource is less than the first threshold, and / or when the BLER determined according to the measurement result on the first resource is greater than the second threshold, if the indication information indicates that the BFD-RS is transmitted on the first resource, increase the BFI count, and / or if the indication information indicates that the BFD-RS is not transmitted on the first resource, do not increase the BFI count.

[0017] Implementing this method can determine whether to increase the BFI count according to the measurement result on the first resource after receiving the indication information, that is, after receiving the indication information, then combine the measurement result of the first resource to determine whether to perform the BFI count, thereby improving the accuracy of the BFI count.

[0018] In a possible implementation, the indication information is carried in sidelink control information (SCI).

[0019] Implementing this method, where the indication information is carried in SCI, can save signaling overhead.

[0020] In a second aspect, an embodiment of the present application provides a communication method, the method comprising:

[0021] Sending indication information, where the indication information indicates whether BFD-RS is transmitted on a first resource, the first resource being the resource determined during the resource selection process for transmitting the BFD-RS, and the control information carried by the first resource indicates the resource for transmitting the indication information.

[0022] In a possible implementation, the indication information is carried in SCI.

[0023] In a third aspect, an embodiment of the present application provides a communication method, the method comprising:

[0024] Sending configuration information, where the configuration information is used to configure an offset, and the offset is used to determine one or more sets of BFD-RS candidate resources.

[0025] Based on the description of the third aspect, by configuring the offset, one or more sets of BFD-RS candidate resources can be determined, thereby increasing the probability of BFD-RS transmission.

[0026] In a possible implementation, the one or more sets of BFD-RS candidate resources are determined according to the offset and the resource determined during the resource selection process for transmitting BFD-RS.

[0027] Implementing this method, based on the resource determined during the resource selection process for transmitting BFD-RS, one or more sets of BFD-RS candidate resources are determined, thereby increasing the opportunity to transmit BFD-RS within one period.

[0028] In a fourth aspect, an embodiment of the present application provides a communication method, the method comprising:

[0029] Receiving configuration information, where the configuration information is used to configure an offset, and the offset is used to determine one or more sets of BFD-RS candidate resources;

[0030] Sending BFD-RS or receiving BFD-RS according to the configuration information.

[0031] In a possible implementation, the set or sets of BFD-RS candidate resources are determined according to the offset and the resources determined for transmitting BFD-RS in the resource selection process.

[0032] In a fifth aspect, an embodiment of the present application provides a communication method, the method includes:

[0033] Receiving indication information, the indication information indicating a first resource for transmitting BFD-RS;

[0034] Determining that there is an overlap between the first resource and a second resource;

[0035] Triggering resource reselection for the transmission corresponding to the second resource.

[0036] Based on the description of the fifth aspect, when the second resource overlaps with the first resource for transmitting BFD-RS, resource reselection for the transmission corresponding to the second resource is triggered, so as to avoid the first resource for transmitting BFD-RS and improve the success rate of BFD-RS transmission.

[0037] In a possible implementation, the indication information is carried in the SCI.

[0038] Implementing this method, the indication information is carried in the SCI, thereby saving signaling overhead.

[0039] In a sixth aspect, an embodiment of the present application provides a communication method, the method includes:

[0040] Sending indication information, the indication information indicating that the current periodic BFD-RS transmission has the highest priority, or the indication information indicating that there is a resource carrying BFD-RS among the reserved resources.

[0041] Based on the description of the sixth aspect, by indicating that the BFD-RS transmission has the highest priority through the indication information, or indicating that there is a resource carrying BFD-RS among the reserved resources, it is convenient for other terminal devices to avoid the BFD-RS transmission and improve the success rate of BFD-RS transmission.

[0042] In a possible implementation, the indication information is carried in the SCI.

[0043] In a seventh aspect, an embodiment of the present application provides a communication method, the method includes:

[0044] Receiving indication information, the indication information indicating that there is a resource carrying BFD-RS among the reserved resources;

[0045] Performing resource exclusion according to the indication information.

[0046] Based on the description of the seventh aspect, resource exclusion is performed according to the indication information of BFD-RS transmission existing in the reserved resources according to the indication, which can avoid collisions with the resources used for BFD-RS transmission and improve the success rate of BFD-RS transmission.

[0047] In an eighth aspect, an embodiment of the present application provides a communication method, and the method includes:

[0048] Send BFD-RS on a first resource, where the first resource does not belong to the resources in the resource pool configured by the network for sidelink communication; or, the first resource belongs to the resource pool dedicated to BFD-RS transmission configured by the network.

[0049] In a possible implementation manner, the resource pool for sidelink communication does not include the resources in the resource pool dedicated to BFD-RS transmission.

[0050] In a ninth aspect, an embodiment of the present application provides a communication device, and the communication device includes units for implementing the method in any possible implementation manner of the first aspect to the eighth aspect.

[0051] In a tenth aspect, an embodiment of the present application provides a communication device, and the communication device includes a processor and a memory. The processor and the memory are interconnected. The memory is used to store a computer program, and the computer program includes program instructions. The processor is configured to call the program instructions to execute the method described in the first aspect or any optional implementation manner of the first aspect, or to execute the method described in the second aspect or any optional implementation manner of the second aspect, or to execute the method described in the third aspect or any optional implementation manner of the third aspect, or to execute the method described in the fourth aspect or any optional implementation manner of the fourth aspect, or to execute the method described in the fifth aspect or any optional implementation manner of the fifth aspect, or to execute the method described in the sixth aspect or any optional implementation manner of the sixth aspect, or to execute the method described in the seventh aspect or any optional implementation manner of the seventh aspect, or to execute the method described in the eighth aspect or any optional implementation manner of the eighth aspect.

[0052] In a tenth aspect, an embodiment of the present application provides a chip, which includes a processor and an interface, and the processor is coupled to the interface; the interface is configured to receive and / or output signals, and the processor is configured to execute code instructions to execute the method described in the first aspect or any optional implementation manner of the first aspect, or to execute the method described in the second aspect or any optional implementation manner of the second aspect, or to execute the method described in the third aspect or any optional implementation manner of the third aspect, or to execute the method described in the fourth aspect or any optional implementation manner of the fourth aspect, or to execute the method described in the fifth aspect or any optional implementation manner of the fifth aspect, or to execute the method described in the sixth aspect or any optional implementation manner of the sixth aspect, or to execute the method described in the seventh aspect or any optional implementation manner of the seventh aspect, or to execute the method described in the eighth aspect or any optional implementation manner of the eighth aspect.

[0053] In an eleventh aspect, an embodiment of the present application provides a module device, which includes a communication module, a power module, a storage module, and a chip module, where: the power module is configured to provide electrical energy for the module device; the storage module is configured to store data and / or instructions; the communication module communicates with an external device; the chip module is configured to call the data and / or instructions stored in the storage module and, in combination with the communication module, execute the method described in the first aspect or any optional implementation manner of the first aspect, or execute the method described in the second aspect or any optional implementation manner of the second aspect, or execute the method described in the third aspect or any optional implementation manner of the third aspect, or execute the method described in the fourth aspect or any optional implementation manner of the fourth aspect, or execute the method described in the fifth aspect or any optional implementation manner of the fifth aspect, or execute the method described in the sixth aspect or any optional implementation manner of the sixth aspect, or execute the method described in the seventh aspect or any optional implementation manner of the seventh aspect, or execute the method described in the eighth aspect or any optional implementation manner of the eighth aspect.

[0054] In a thirteenth aspect, an embodiment of the present application provides a computer-readable storage medium storing a computer program, the computer program including program instructions, which, when executed by a computer, are configured to implement the method described in the first aspect or any optional implementation manner of the first aspect, or to implement the method described in the second aspect or any optional implementation manner of the second aspect, or to implement the method described in the third aspect or any optional implementation manner of the third aspect, or to implement the method described in the fourth aspect or any optional implementation manner of the fourth aspect, or to implement the method described in the fifth aspect or any optional implementation manner of the fifth aspect, or to implement the method described in the sixth aspect or any optional implementation manner of the sixth aspect, or to implement the method described in the seventh aspect or any optional implementation manner of the seventh aspect, or to implement the method described in the eighth aspect or any optional implementation manner of the eighth aspect.

[0055] In a fourteenth aspect, an embodiment of the present application provides a computer program product including a computer program or computer code, which, when running on a computer, is configured to implement the method described in the first aspect or any optional implementation manner of the first aspect, to implement the method described in the second aspect or any optional implementation manner of the second aspect, or to implement the method described in the third aspect or any optional implementation manner of the third aspect, or to implement the method described in the fourth aspect or any optional implementation manner of the fourth aspect, or to implement the method described in the fifth aspect or any optional implementation manner of the fifth aspect, or to implement the method described in the sixth aspect or any optional implementation manner of the sixth aspect, or to implement the method described in the seventh aspect or any optional implementation manner of the seventh aspect, or to implement the method described in the eighth aspect or any optional implementation manner of the eighth aspect.

[0056] In a fifteenth aspect, an embodiment of the present application provides a communication system including a first terminal and a second terminal. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] Figure 1 is a schematic structural diagram of a communication system provided by an embodiment of the present application;

[0058] Figure 2 is a schematic diagram of a resource awareness window and a resource selection window provided by an embodiment of the present application;

[0059] Figure 3 is a schematic diagram of a resource preemption provided by an embodiment of the present application;

[0060] Figure 4 is a schematic diagram of a re-evaluation provided by an embodiment of the present application;

[0061] Figure 5 It is a schematic diagram of a re-evaluation provided by an embodiment of the present application;

[0062] Figure 6 It is a schematic flowchart of a communication method provided by an embodiment of the present application;

[0063] Figure 7 It is a schematic diagram of the first resource and the resource where the indication information is located provided by an embodiment of the present application;

[0064] Figure 8 It is a schematic flowchart of another communication method provided by an embodiment of the present application;

[0065] Figure 9 It is a schematic diagram for determining BFD-RS candidate resources provided by an embodiment of the present application;

[0066] Figure 10 It is a schematic diagram for determining another BFD-RS candidate resources provided by an embodiment of the present application;

[0067] Figure 11 It is a schematic diagram for determining yet another BFD-RS candidate resources provided by an embodiment of the present application;

[0068] Figure 12 It is a schematic flowchart of yet another communication method provided by an embodiment of the present application;

[0069] Figure 13 It is a schematic flowchart of yet another communication method provided by an embodiment of the present application;

[0070] Figure 14 It is a schematic flowchart of yet another communication method provided by an embodiment of the present application;

[0071] Figure 15 It is a schematic flowchart of yet another communication method provided by an embodiment of the present application;

[0072] Figure 16 It is a schematic diagram of the structure of a communication device provided by an embodiment of the present application;

[0073] Figure 17 It is a schematic diagram of the structure of another communication device provided by an embodiment of the present application;

[0074] Figure 18 It is a schematic diagram of the structure of yet another communication device provided by an embodiment of the present application;

[0075] Figure 19 It is a schematic diagram of the structure of yet another communication device provided by an embodiment of the present application;

[0076] Figure 20 It is a schematic diagram of the structure of yet another communication device provided by an embodiment of the present application;

[0077] Figure 21 It is a schematic structural diagram of a module device provided by an embodiment of the present application. Detailed implementation manners

[0078] In the embodiments of the present application, unless otherwise specified, the character " / " indicates that the associated objects before and after are in an "or" relationship. For example, A / B may represent A or B. "And / or" describes the association relationship of the associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist simultaneously, and B exists alone.

[0079] It should be noted that the terms "first", "second", etc. involved in the embodiments of the present application are only used for the purpose of distinguishing descriptions, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features, nor can they be understood as indicating or implying an order.

[0080] In the embodiments of the present application, "at least one" means one or more, and "a plurality" means two or more. In addition, "at least one (item)" or its similar expressions refer to any combination of these items, which can include any combination of single item (item) or plural items (items). For example, at least one (item) of A, B, or C can represent: A, B, C, A and B, A and C, B and C, or A, B, and C. Among them, each of A, B, and C itself can be an element or a set containing one or more elements.

[0081] In the embodiments of the present application, "exemplary", "in some embodiments", "in another embodiment", etc. are used to give examples, illustrations or explanations. Any embodiment or design solution described as "exemplary" in the present application should not be construed as being more preferred or having more advantages than other embodiments or design solutions. Exactly speaking, the use of the word "exemplary" is intended to present concepts in a specific way.

[0082] In the embodiments of the present application, "(of)", "corresponding", and "corresponding" can sometimes be used interchangeably. It should be noted that when not emphasizing their differences, the meanings to be expressed are the same. In the embodiments of the present application, communication and transmission can sometimes be used interchangeably. It should be noted that when not emphasizing their differences, the meanings they express are the same. For example, transmission can include sending and / or receiving, and can be a noun or a verb.

[0083] In the embodiments of the present application, "equal to" involved can be used in combination with "greater than", applicable to the technical solutions adopted when it is greater than, or can also be used in combination with "less than", applicable to the technical solutions adopted when it is less than. It should be noted that when "equal to" is used in combination with "greater than", it cannot be used in combination with "less than"; when "equal to" is used in combination with "less than", it is not used in combination with "greater than".

[0084] Please refer to Figure 1 , Figure 1 which is a schematic structural diagram of a communication system provided by the embodiments of the present application. The communication system may include, but is not limited to, one or more network devices and one or more terminal devices, such as Figure 1 Taking one network device and two terminal devices as an example, among which, Figure 1 the network device in is taken as a base station, and the terminal device is taken as a vehicle. The terminal device can establish a wireless link with the network device for communication, and the terminal device can also establish a sidelink with the terminal device for communication. Figure 1 The communication system shown includes, but is not limited to, network devices and terminal devices, and may also include other communication devices, Figure 1 The number and form of the devices shown are for illustration and do not constitute a limitation on the embodiments of the present application.

[0085] In the embodiments of the present application, the terminal device is a device with wireless transceiver functions, which can be referred to as a terminal, user equipment (UE), mobile station (MS), mobile terminal (MT), access terminal device, in-vehicle terminal device, industrial control terminal device, UE unit, UE station, mobile station, remote station, remote terminal device, mobile device, UE terminal device, wireless communication device, UE agent, or UE device, etc. The terminal device can be fixed or mobile. It should be noted that the terminal device can support at least one wireless communication technology, such as long term evolution (LTE), new radio (NR), etc. For example, the terminal device can be a mobile phone, tablet (pad), desktop computer, laptop computer, all-in-one computer, in-vehicle terminal, virtual reality (VR) terminal device, augmented reality (AR) terminal device, wireless terminal in industrial control, wireless terminal in self-driving, wireless terminal in remote medical surgery, wireless terminal in smart grid, wireless terminal in transportation safety, wireless terminal in smart city, wireless terminal in smart home, cellular phone, cordless phone, session initiation protocol (SIP) phone, wireless local loop (WLL) station, personal digital assistant (PDA), handheld device with wireless communication functions, computing device, or other processing devices connected to a wireless modem, wearable device, terminal device in a future mobile communication network, or terminal device in a future evolved public land mobile network (PLMN), etc. In some embodiments of the present application, the terminal device can also be a device with transceiver functions, such as a chip system. Among them, the chip system can include a chip and can also include other discrete devices.

[0086] In the embodiments of the present application, a network device is a device that provides wireless communication functions for terminal devices, and can also be referred to as an access network device, a radio access network (RAN) device, etc. Among them, the network device can support at least one wireless communication technology, such as LTE, NR, etc. Exemplarily, the network device includes, but is not limited to: the next-generation base station (generation nodeB, gNB) in the fifth-generation mobile communication system (5th-generation, 5G), the base station in the sixth-generation mobile communication system (6th-generation, 6G), evolved node B (eNB), radio network controller (RNC), node B (NB), base station controller (BSC), base transceiver station (BTS), home base station (e.g., home evolved node B, or home node B, HNB), baseband unit (BBU), transmitting and receiving point (TRP), transmitting point (TP), mobile switching center, etc. The network device can also be a wireless controller, a centralized unit (CU), and / or a distributed unit (DU) in the cloud radio access network (CRAN) scenario, or the network device can be a relay station, an access point, a vehicle-mounted device, a terminal device, a wearable device, and a network device in future mobile communications or a network device in a future evolved PLMN. In some embodiments, the network device can also be a device with the function of providing wireless communication for terminal devices, such as a chip system. Exemplarily, the chip system can include a chip and can also include other discrete devices.

[0087] The following explains some terms related to the embodiments of the present application to facilitate the understanding of those skilled in the art.

[0088] 1. Perception-based resource selection mechanism

[0089] Mode 2 is a perception-based resource selection mechanism. Exemplarily, the time-domain granularity of the resource perception and resource selection processes can be a time slot, and the frequency-domain granularity can be a sub-channel. With the evolution of the communication system, it can also be other time-domain granularities and / or frequency-domain granularities, which are not limited in this application. The terminal device operating in mode 2 will perform resource perception. When a resource selection or reselection process is triggered, the physical layer determines the resource occupancy situation in a future period (resource selection window) based on the perception results within a previous period (resource perception window), excludes the unavailable resources within the resource selection window, and finally forms a candidate resource set to report to the Media Access Control (MAC) layer. The MAC layer selects transmission resources from this candidate resource set according to the resource selection constraint conditions. For the specific resource selection process, refer to the relevant description in Section 8.1.4 of 3GPP TS 38.214.

[0090] The following combines Figure 2 to illustrate the resource exclusion process and the reporting process of candidate resources for the New Radio (NR) Vehicle-to-everything (V2X). When UE3 triggers a resource selection process at time n, the corresponding resource perception window and resource selection window are determined, and the resource exclusion process and the reporting of candidate resources are performed in sequence:

[0091] Step 1: Define the resource selection window [n + T1, n + T2]. Here, T1 ≤ Tproc,1, and Tproc,1 is a processing time for resource selection and data preparation, etc.

[0092] Step 2: Determine the resource perception window [n - T0, n - Tproc,0). Here, T0 is configured by the higher layer as 1100 ms or 100 ms; Tproc,0 is a perception processing time.

[0093] Step 3: Determine the Reference Signal Receiving Power (RSRP) threshold for subsequent comparison with the RSRP measurement value.

[0094] Step 4: Initialize the candidate resource set S A , S A is initially set to all the candidate resources within the entire resource selection window, with a total of M total .

[0095] Step 5: From the candidate resource set S AExclude the time units in the resource selection window where the resource occupancy cannot be determined due to half-duplex reasons. Specifically, it includes: determining the time slots that the terminal device cannot sense due to half-duplex reasons. For example, when the terminal device sends data in this time slot, it cannot receive the resource reservation information of other terminal devices in this time slot at the same time. It is considered that there are periodically reserved resources sent by other terminal devices in the above time slots, and the reservation period traverses the entire resource reservation period list, and exclude the candidate resources of the relevant time slots in the resource selection window.

[0096] Step 5a, after the above resource exclusion, when the number of candidate resources in the candidate resource set S A does not meet the minimum number X*M of resources reported to the upper layer total , then reset the candidate resource set S A , that is, abandon the resource exclusion performed in step 5.

[0097] Step 6, exclude the candidate resources reserved by other terminal devices and with RSRP measurement values higher than the RSRP threshold from the candidate resource set S A . For example, as in Figure 2 , if the RSRP measurement value measured by UE1 in the resource sensing window is higher than the RSRP threshold, then the candidate resources reserved by UE1 need to be excluded from the candidate resource set. Since the RSRP measurement value measured by UE2 in the resource sensing window is lower than the RSRP threshold, it is not necessary to exclude the candidate resources reserved by UE2 from the candidate resource set.

[0098] Step 7, determine whether the number of resources in the candidate resource set S A meets the requirements of the total number of candidate resources reported to the upper layer. If it meets, report; if it does not meet, lower the RSRP threshold and jump to step 4.

[0099] 2. Resource pre-emption mechanism

[0100] To ensure the reliability of high-priority transmissions, the sidelink supports reselection of resources that have been reserved and pre-empted. The following is a specific description:

[0101] For a certain resource that has been reserved in time slot m, perform pre-emption detection at least at m - T3 (T3 ≤ Tproc,1 (processing time of the terminal)). The detection process is the resource sensing and resource exclusion process, forming a candidate resource set. If the resource is not in the candidate resource set and meets the pre-emption priority conditions, then trigger resource reselection, and reselect a resource for the current transmission among the candidates, and the resource selection follows the resource selection constraint conditions.

[0102] Among them, the pre-emption priority conditions include: If a priority threshold is not configured, then the pre-emption priority condition is that the priority of the reserved transmission for the sensed UE is higher than the priority of the reserved transmission for the sensing UE;

[0103] If a priority threshold is configured, then the pre-emption priority condition is that the priority of the reserved transmission for the sensed UE is higher than this priority threshold and the priority of the reserved transmission for the sensed UE is higher than the priority of the reserved transmission for the sensing UE. This ensures the reliability of high-priority transmissions with a high priority threshold.

[0104] The following combines Figure 3 to describe the resource pre-emption mechanism by way of example. For example, the Tx UE triggers a resource selection process, which specifically includes resource exclusion and resource selection. After resource exclusion, a candidate resource set is obtained. For example, 3 resources are selected from the candidate resource set, namely Resource 1, Resource 2, and Resource 3. The first transmission is carried out on Resource 1, and Resource 2 for the second transmission and Resource 3 for the third transmission are reserved and indicated. After the first transmission is completed, Resource 2 and Resource 3 are the resources that have been reserved and indicated.

[0105] For example, if Resource 2 is transmitted in time slot m, then a resource pre-emption confirmation can be carried out on Resource 2 that has been reserved and indicated at a time before m - T3. The reserved and indicated resource refers to the resource that the Tx UE indicates to other terminals as a reserved resource by sending an SCI. If Resource 2 overlaps with the reserved and indicated resources of other terminals (that is, Resource 2 is not included in the candidate resource set formed by re-performing the resource sensing and resource exclusion process), and the above-mentioned Resource 2 meets the above-mentioned pre-emption priority conditions, then resource reselection is triggered to reselect a new transmission resource instead of transmitting on Resource 2.

[0106] 3. Re-evaluation mechanism

[0107] To further reduce resource collisions and improve reliability, NR V2X supports re-evaluating the selected resources that have not been reserved yet. The selected resources that have not been reserved refer to the resources selected from the candidate resource set but have not been indicated as reserved by sending SCI. Since the resources have not been reserved yet, reselecting these resources will not affect the perception of other UEs. For a resource that has not been reserved yet, if the resource is first reserved at slot m, then it should be detected at least before m - T3 (T3 ≤ Tproc,1). The detection process executes steps 1 to 7 in the above resource selection process to form a candidate resource set. If the resource is not in the candidate resource set, then the resource reselection process is triggered to reselect the resource from the candidate resources, and the resource selection follows the resource selection constraint conditions.

[0108] The following combines Figure 4 and Figure 5 to describe the re-evaluation mechanism by way of example. Resources 1, 2, 3, and 4 are the selected resources. Figure 4 and Figure 5 The dashed arrows indicate that the resources have not been reserved yet, and the solid arrows indicate that they have been reserved.

[0109] Please refer to Figure 4 , which shows that the four selected resources have not been reserved yet. Then, these four resources can be re-evaluated at m - T3, where m is the time slot where Resource 1 is located. Although Resource 4 is first reserved by Resource 2, the re-evaluation can be carried out earlier depending on the UE implementation.

[0110] Please refer to Figure 5 , which shows that Resource 1 has been used and has reserved Resources 2 and 3. Therefore, Resources 2 and 3 cannot be re-evaluated. For Resource 4, which will be first reserved by Resource 2, it can be re-evaluated at m - T3, where m is the time slot where Resource 2 is located.

[0111] In Figure 5 , since Resources 2 and 3 are the resources that have been reserved, resource preemption confirmation can be performed on Resources 2 and 3 at m - T3, where m is the time slot where Resource 2 is located.

[0112] 4. Beam Failure Detection

[0113] The transmitting end sends BFD-RS to the receiving end. If the receiving end detects that the BLER is lower than the threshold, the physical layer of the receiving end indicates BFI to the media access control (MAC) layer. Each time the MAC layer receives BFI, the MAC layer starts or restarts a timer, and each time it receives a BFI indication, the MAC layer increments the BFI counter by 1. If the value of the BFI counter is greater than or equal to the counting threshold, a beam failure is detected. If the timer times out, the BFI counter is reset to 0.

[0114] It should be noted that the various technical solutions (or various embodiments) of this application can be implemented independently or can be combined based on certain internal relationships. This application does not make any restrictions. And various terms and definitions between the various embodiments can be referenced mutually. In each embodiment of this application, different implementation manners can also be combined or implemented independently.

[0115] The steps executed by the terminal in the following method embodiments can be executed by the terminal or components of the terminal (such as a processor, a chip, or a chip system, etc.). When described in the following method embodiments, it is described by taking the terminal as an example.

[0116] The steps executed by the network device in the following method embodiments can be executed by the network device or components of the network device (such as a processor, a chip, or a chip system, etc.). When described in the following method embodiments, it is described by taking the network device as an example.

[0117] Please refer to Figure 6 , which is a schematic flowchart of a communication method provided by an embodiment of this application. As Figure 6 shown, the communication method of this embodiment includes but is not limited to the following steps:

[0118] 601. The second terminal sends indication information. The indication information is used to determine whether BFD-RS is transmitted on the first resource. Correspondingly, the first terminal receives the indication information. Here, whether it is transmitted means whether the second terminal sends BFD-RS on the first resource.

[0119] Alternatively, BFD-RS can be a Channel State Information-Reference Signal (CSI-RS), a Synchronization Signal and PBCH block (SSB), and other reference signals.

[0120] In one example, the indication information indicates whether BFD-RS has been transmitted on a first resource. The indication information may occupy one or more bits. For example, the indication information occupies one bit, and whether BFD-RS has been transmitted on the first resource is indicated by the bit value of this one bit. Exemplarily, if the bit value of this bit is 0, it means that the second terminal has not transmitted BFD-RS on the first resource; if the bit value of this bit is 1, it means that the second terminal has transmitted BFD-RS on the first resource.

[0121] In another example, the indication information indicates that BFD-RS has been transmitted on the first resource. When the indication information does not exist in the message carrying this indication information, it indicates that BFD-RS has not been transmitted on the first resource. For example, the indication information is carried in a field of the SCI. When this field exists in the SCI, it indicates that BFD-RS has been transmitted on the first resource. When this field does not exist in the SCI, it indicates that BFD-RS has not been transmitted on the first resource.

[0122] In another example, the indication information indicates that BFD-RS has not been transmitted on the first resource. When the indication information does not exist in the message carrying this indication information, it indicates that BFD-RS has been transmitted on the first resource. For example, the indication information is carried in a field of the SCI. When this field exists in the SCI, it indicates that BFD-RS has not been transmitted on the first resource. When this field does not exist in the SCI, it indicates that BFD-RS has been transmitted on the first resource.

[0123] The first resource is the resource determined in the resource selection process for transmitting BFD-RS, and the control information carried by the first resource indicates the resource for transmitting the indication information.

[0124] Exemplarily, the indication information may be carried in the SCI.

[0125] Exemplarily, the first resource may be any one of multiple resources. These multiple resources are periodic and are all used for transmitting BFD-RS, that is, these multiple resources are resources for periodically transmitting BFD-RS. Each resource in these multiple resources can be indicated with reference to the indication method of the first resource to determine whether BFD-RS has been transmitted on each resource in these multiple resources for periodically transmitting BFD-RS.

[0126] That the first resource is the resource determined in the resource selection process for transmitting BFD-RS can be understood as that the first resource may refer to the resource selected from the candidate resource set based on the perception-based resource selection mechanism, or the first resource is the periodic expansion resource of the resource selected from the candidate resource set based on the perception-based resource selection mechanism. For example, as Figure 7As shown, Resource 1 can be a resource selected from a candidate resource set by a perception-based resource selection mechanism. Since there is a reservation period for this Resource 1, Resource 2 and Resource 3 can be periodic expansion resources of Resource 1. The first resource in the embodiments of the present application can be Resource 1, or Resource 2, or Resource 3. Exemplarily, the resource for periodic transmission of BFD-RS can be determined according to the "resource reservation period index" in the SCI field of Section 8.3.1 of the existing protocol 3GPP TS 38.212 and the resource reservation period list configured by the base station, or can be determined by other methods, which is not limited in the present application.

[0127] After the second terminal determines the resource for transmitting BFD-RS during the resource selection process, due to the existence of re-evaluation, resource preemption mechanism, etc., it may cause the second terminal not to transmit BFD-RS on the determined resource. For example, in the resource preemption mechanism, the resources reserved by other terminals overlap with the resources determined by the second terminal for transmitting BFD-RS, and the priority of the data transmitted by other terminals is higher, the second terminal will trigger resource reselection, resulting in not transmitting BFD-RS on the determined resource for transmitting BFD-RS. To solve this problem, the present application can indicate whether BFD-RS has been transmitted, is not transmitted, or will be transmitted on the determined resource for transmitting BFD-RS through indication information.

[0128] In the embodiments of the present application, the first resource can carry control information, which can refer to SCI. The control information can indicate reserved resources, and the reserved resources can include the periodic expansion resources of the first resource, and the periodic expansion resources of the first resource are the resources for periodic transmission of BFD-RS. In the embodiments of the present application, the resource for transmitting indication information can be the reserved resources indicated by the control information carried on the first resource. In addition to transmitting indication information, BFD-RS can also be transmitted on the reserved resources.

[0129] Such as Figure 7As shown, taking periodic reservation as an example, Resource 1, Resource 2, and Resource 3 are resources determined in the resource selection process for periodic transmission of BFD-RS. The control information carried on Resource 1 can indicate Resource 2 and Resource 3, and the control information carried on Resource 2 can indicate Resource 3. For example, the first resource in the embodiments of this application may refer to Resource 1, and the resource for transmitting the indication information may be Resource 2 or Resource 3, that is, the resource for transmitting the indication information is the resource indicated by the control information on Resource 1. The indication information carried on Resource 2 or Resource 3 can indicate whether BFD-RS has been transmitted on Resource 1. It can be understood that in addition to transmitting the indication information, Resource 2 or Resource 3 can also transmit BFD-RS, and this indication information can be carried in the SCI on Resource 2 or Resource 3. Another example, the first resource in the embodiments of this application may refer to Resource 2, and the resource for transmitting the indication information may be Resource 3, that is, the resource for transmitting the indication information is the resource indicated by the control information on Resource 2. The indication information carried on Resource 3 can indicate whether BFD-RS has been transmitted on Resource 2. It can be understood that in addition to transmitting the indication information, Resource 3 can also transmit BFD-RS. In this example, since Resource 3 can also be the resource indicated by the control information on Resource 1, therefore, the indication information carried on Resource 3 can also indicate whether BFD-RS has been transmitted on Resource 1.

[0130] The indication information can indicate whether BFD-RS has been transmitted in the previous period corresponding to this indication information, or the indication information can indicate whether BFD-RS has been transmitted in any one or more of the previous multiple periods corresponding to this indication information. Among them, the period corresponding to the indication information can be understood as the period in which the resource carrying this indication information is located.

[0131] 602, the first terminal determines the BFI count according to the indication information.

[0132] In the embodiments of this application, "determine the BFI count" can be replaced with "maintain or adjust the BFI count". "Do not increase the BFI count" in the following text can be replaced with "keep the BFI count unchanged".

[0133] "Determine the BFI count" can also be replaced with "increase or not increase or decrease the BFI count". Among them, "do not increase the BFI count" can also be understood as "determine not to increase the BFI count".

[0134] In a possible implementation manner, the first terminal can also determine the BFI count according to the measurement result on the first resource and the indication information. The following takes two optional ways as examples:

[0135] In a first optional implementation manner, when the reference signal receiving power (RSRP) measured on a first resource is less than a first threshold, and / or when the block error rate (BLER) determined according to the measurement result on the first resource is greater than a second threshold, the BFI count is increased. If it is determined according to indication information that a BFD-RS is transmitted on the first resource (for example, the indication information indicates that a BFD-RS is transmitted on the first resource), the BFI count is not increased (at this time, the current BFI count is the determined BFI count), and / or if it is determined according to the indication information that a BFD-RS is not transmitted on the first resource (for example, the indication information indicates that a BFD-RS is not transmitted on the first resource), the BFI count is decreased (at this time, the decreased BFI count is the determined BFI count).

[0136] Wherein, the measurement result used to determine the BLER can be the signal-to-noise ratio on the first resource, or other measurement results that can determine the BLER, which is not limited in this application.

[0137] In this implementation manner, when the RSRP measured on the first resource is less than the first threshold, and / or the BLER corresponding to the first resource is greater than the second threshold, the physical layer of the first terminal will indicate BFI to the media access control (MAC) layer. After receiving the BFI indicated by the physical layer, the MAC layer will increase the BFI count. For example, the value of the BFI counter will be increased by a first value, and the first value can be the BFI count increased for one occurrence of BFI. For example, the first value can be 1.

[0138] If it is determined according to the indication information that a BFD-RS is transmitted on the first resource (for example, the indication information indicates that a BFD-RS is transmitted on the first resource), it means that the value of the BFI counter should be increased by the first value. Since the BFI count has already been increased for one occurrence of BFI on the first resource, the BFI count does not need to be increased repeatedly when the indication information is received.

[0139] If it is determined according to the indication information that BFD-RS is not transmitted on the first resource, it indicates that a BFI has not occurred on the first resource, and the BFI count should not be increased. Since the physical layer of the first terminal has reported a BFI to the MAC layer for the first resource, the BFI count needs to be decreased, that is, subtract the BFI count increased for the BFI that occurred on the first resource. For example, subtract 1 from the BFI count. Specifically, optionally, the physical layer of the first terminal may report a cancellation message to the MAC layer, and the cancellation message may indicate at least one of the following: indicating cancellation of the BFI reported to the MAC layer for the first resource, indicating subtracting a first value from the value of the BFI counter. After receiving the cancellation message, the MAC layer of the first terminal may decrease the value of the BFI counter by the first value, and the first value may be the BFI count increased for one occurrence of BFI. For example, the first value may be 1.

[0140] If the value of the BFI counter is greater than or equal to the counting threshold, beam failure is determined. If the timer expires, the value of the BFI counter is reset to 0.

[0141] In the first optional implementation manner, the first terminal can determine whether the second terminal has transmitted BFD-RS on the first resource through the indication information, so as to correct the performed BFI count in time and improve the accuracy of the BFI count.

[0142] In the second optional implementation manner, when the RSRP measured on the first resource is less than the first threshold, and / or when the BLER determined according to the measurement result on the first resource is greater than the second threshold, if it is determined according to the indication information that BFD-RS is transmitted on the first resource (for example, the indication information indicates that BFD-RS is transmitted on the first resource), increase the BFI count (at this time, the increased BFI count is the determined BFI count).

[0143] When the RSRP measured on the first resource is less than the first threshold, and / or when the BLER determined according to the measurement result on the first resource is greater than the second threshold, if it is determined according to the indication information that BFD-RS is not transmitted on the first resource (for example, the indication information indicates that BFD-RS is not transmitted on the first resource), do not increase the BFI count (at this time, the current BFI count is the determined BFI count).

[0144] In this implementation manner, when the first terminal receives the indication information, it determines whether to increase the BFI count according to the indication information and the measurement result on the first resource. Instead of determining whether to increase the BFI count solely based on the measurement result on the first resource. Since the period corresponding to the first resource is the period before the period corresponding to the resource where the indication information is located, this implementation manner can also be understood as reporting BFI with a delay of one or more periods.

[0145] If the RSRP measured on the first resource is less than the first threshold, and / or the BLER corresponding to the first resource is greater than the second threshold, and it is determined according to the indication information that BFD-RS is transmitted on the first resource (for example, the indication information indicates that BFD-RS is transmitted on the first resource), it indicates that a BFI occurs on the first resource. The physical layer of the first terminal will indicate the BFI to the MAC layer. After receiving the BFI indicated by the physical layer, the MAC layer will increase the BFI count. For example, it will increase the value of the BFI counter by a first value. The first value can be the BFI count increased for one occurrence of BFI. For example, the first value can be 1.

[0146] If the RSRP measured on the first resource is less than the first threshold, and / or the BLER corresponding to the first resource is greater than the second threshold, and it is determined according to the indication information that BFD-RS is not transmitted on the first resource, it indicates that no BFI occurs on the first resource and there is no need to increase the BFI count. The physical layer of the first terminal does not need to report the BFI to the MAC layer.

[0147] In the second optional implementation manner, after receiving the indication information, the first terminal further jointly determines whether to increase the BFI count according to the indication information and the measurement result on the first resource, avoiding the situation where the BFI count is increased when the second terminal does not transmit BFD-RS, and improving the accuracy of the BFI count.

[0148] Please refer to Figure 8 for the schematic flowchart of another communication method provided by the embodiment of the present application. As Figure 8 shown, the communication method of this embodiment includes but is not limited to the following steps:

[0149] 801. The network device sends configuration information, and this configuration information is used to configure the offset. Correspondingly, the terminal device receives the configuration information.

[0150] This offset is used to determine one set or multiple sets of BFD-RS candidate resources. Exemplarily, each set of BFD-RS candidate resources can be periodic candidate resources, and there is no overlap between multiple sets of BFD-RS candidate resources. This one set or multiple sets of BFD-RS candidate resources are determined according to the offset configured by the configuration information and the resources determined for transmitting BFD-RS in the resource selection process. Among them, the resource selection process can refer to the relevant description in Section 8.1.4 of 3GPP TS38.214. The resources determined for transmitting BFD-RS in the resource selection process can be periodic resources. As Figure 9 and Figure 10 shown, the resources filled with diagonal lines are the resources determined for transmitting BFD-RS in the resource selection process. In Figure 9 and Figure 10Among them, the periodically-resources filled with squares are the first set of BFD-RS candidate resources, and the periodically-resources filled with gray are the second set of BFD-RS candidate resources. The first set of BFD-RS candidate resources and the second set of BFD-RS candidate resources are determined based on the resources filled with offsets and diagonals.

[0151] Exemplarily, the configuration information can configure one offset or multiple offsets.

[0152] In one implementation, one or more sets of BFD-RS candidate resources can be the resources determined by offsetting different offsets in the time domain for the resources determined to transmit BFD-RS during the resource selection process. For example, as Figure 11 shown, the first set of BFD-RS candidate resources is the resources determined by offsetting the resources determined to transmit BFD-RS during the resource selection process backward by offset 1 in the time domain, and the second set of BFD-RS candidate resources is the resources determined by offsetting the resources determined to transmit BFD-RS during the resource selection process backward by offset 2 in the time domain.

[0153] In another implementation, for two sets of BFD-RS candidate resources adjacent in the time domain, the set of BFD-RS candidate resources that is later in the time domain can be the resources determined by offsetting the set of BFD-RS candidate resources that is earlier in the time domain by a certain offset in the time domain. The set of BFD-RS candidate resources adjacent to the resources determined to transmit BFD-RS during the resource selection process is the resources determined by offsetting the resources determined to transmit BFD-RS during the resource selection process by a certain offset in the time domain. As Figure 9As shown, the resources filled with diagonal lines are the resources determined for transmitting BFD-RS during the resource selection process. A set of BFD-RS candidate resources filled with squares and the resources filled with diagonal lines are resources adjacent in the time domain. A set of BFD-RS candidate resources filled with gray and a set of BFD-RS candidate resources filled with squares are two sets of BFD-RS candidate resources adjacent in the time domain. A set of BFD-RS candidate resources filled with squares are the resources determined by shifting the resources filled with diagonal lines backward by a certain offset in the time domain. A set of BFD-RS candidate resources filled with gray are the resources determined by shifting a set of BFD-RS candidate resources filled with squares backward by a certain offset in the time domain. It should be noted that the offset between the two sets of BFD-RS candidate resources described above can refer to the offset in the time domain between two BFD-RS candidate resources that respectively belong to the two sets of BFD-RS candidate resources within the same period. This period can refer to the reservation period of the resources determined for transmitting BFD-RS during the resource selection process. This set or multiple sets of BFD-RS candidate resources can be the repeated transmission resources of the resources determined for transmitting BFD-RS during the resource selection process. The embodiments of the present application can achieve repeated transmission of BFD-RS on multiple resources within one period, increasing the BFD-RS transmission opportunity.

[0154] It can be understood that the offset in the embodiments of the present application can refer to the offset between the start positions in the time domain of two resources or the offset between the end positions in the time domain, or it can also refer to the offset between the end position in the time domain of the previous resource and the start position in the time domain of the subsequent resource. The present application does not limit the definition of the offset.

[0155] In a possible implementation manner, the configuration information configures an offset. For any two sets of BFD-RS candidate resources adjacent in the time domain, the set of BFD-RS candidate resources that are later in the time domain are all offset by this offset relative to the set of BFD-RS candidate resources that are earlier in the time domain. Specifically, it can refer to that within the same period, the BFD-RS candidate resources in the set of BFD-RS candidate resources that are later in the time domain are all offset by this offset relative to the BFD-RS candidate resources in the set of BFD-RS candidate resources that are earlier in the time domain. It can be understood that a set of BFD-RS candidate resources adjacent to the resources determined for transmitting BFD-RS during the resource selection process refers to the offset between the BFD-RS candidate resources in this set of BFD-RS candidate resources and the resources determined for transmitting BFD-RS during the resource selection process within the same period.

[0156] The network device configures an offset, and two sets of BFD-RS candidate resources adjacent in the time domain within the same period are all offset according to this offset, which can also achieve the transmission of BFD-RS on multiple resources within the same period.

[0157] Exemplarily, the network device may also indicate the number of sets of BFD-RS candidate resources.

[0158] The following uses Figure 9 as an example to describe the scenario of configuring an offset. The resources filled with slashes are the resources determined for transmitting BFD-RS during the resource selection process. The offset between a set of BFD-RS candidate resources filled with squares and the resources filled with slashes is Offset 1, and the offset between a set of BFD-RS candidate resources filled with gray and a set of BFD-RS candidate resources filled with squares is also Offset 1, so as to provide multiple candidate transmission positions for the transmission on the BFD-RS resources filled with slashes within the same cycle.

[0159] In another possible implementation, the configuration information may configure multiple offsets, and one of the multiple offsets is used to determine a set of BFD-RS candidate resources.

[0160] For example, the configuration information configures a first offset and a second offset. Based on the resources determined for transmitting BFD-RS during the resource selection process, the first set of BFD-RS candidate resources can be determined by offsetting the first offset in the time domain. Based on the first set of BFD-RS candidate resources, the second set of BFD-RS candidate resources can be determined by offsetting the second offset in the time domain, and so on. The nth offset is used to determine the nth set of BFD-RS candidate resources.

[0161] The following uses Figure 10 as an example to describe the scenario of configuring multiple offsets. The resources filled with slashes are the resources determined for transmitting BFD-RS during the resource selection process. Based on the resources filled with slashes and Offset 1, the first set of BFD-RS candidate resources can be determined, that is, a set of BFD-RS candidate resources filled with squares can be determined. Further, based on the first set of BFD-RS candidate resources and Offset 2, the second set of BFD-RS candidate resources can be determined, that is, a set of BFD-RS candidate resources filled with gray can be determined

[0162] In the above description, it is taken as an example that the nth set of BFD-RS candidate resources is offset based on the (n - 1)th set of BFD-RS candidate resources. It can also be that each set of BFD-RS candidate resources is offset based on the resources determined for transmitting BFD-RS during the resource selection process. For example, as Figure 11 shown, the first set of BFD-RS candidate resources is the resources determined by offsetting the resources determined for transmitting BFD-RS during the resource selection process backward by Offset 1 in the time domain, and the second set of BFD-RS candidate resources is the resources determined by offsetting the resources determined for transmitting BFD-RS during the resource selection process backward by Offset 2 in the time domain.

[0163] 802. The terminal device sends or receives BFD-RS according to the configuration information.

[0164] After the terminal device determines the set or sets of BFD-RS candidate resources, it can receive or send BFD-RS on the determined BFD-RS candidate resources. The terminal device can also receive or send BFD-RS on the determined BFD-RS resources.

[0165] Exemplarily, if the terminal device is a terminal device that sends BFD-RS, due to the existence of a resource preemption mechanism and a re-evaluation mechanism, the terminal device may not send BFD-RS on the BFD-RS candidate resources or the determined BFD-RS resources due to resource reselection. As Figure 10 shown, for the first period, the terminal device may only send BFD-RS on the BFD-RS candidate resources filled with slashes and the BFD-RS candidate resources filled with gray.

[0166] Exemplarily, if the terminal device is a terminal device that receives BFD-RS, the terminal device measures on the determined set or sets of BFD-RS candidate resources to obtain a measurement result. When the RSRP measured on all BFD-RS candidate resources within a period is less than the first threshold, and / or the BLER corresponding to all BFD-RS candidate resources within a period is greater than the second threshold, the physical layer of the terminal device indicates BFI to the MAC layer. Among them, the BLER corresponding to the BFD-RS candidate resources can be obtained according to the measurement result of the BFD-RS candidate resources, and this measurement result can be a signal-to-noise ratio or other measurement results that can obtain the BLER.

[0167] In the embodiments of the present application, more resource positions are configured for the periodically transmitted BFD-RS, so as to increase the transmission opportunity of BFD-RS. When the measurement results corresponding to all BFD-RS candidate resources within a period do not meet the conditions, BFI is reported, improving the accuracy of BFI counting.

[0168] Please refer to Figure 12 , which is a schematic flowchart of another communication method provided by the embodiments of the present application. As Figure 12 shown, the communication method of this embodiment includes but is not limited to the following steps:

[0169] 1201. The second terminal sends indication information. This indication information indicates the first resource for transmitting BFD-RS. Correspondingly, the first terminal receives the indication information.

[0170] This indication information can be carried in the SCI. The first resource can be a resource reserved by the second terminal. In one implementation, the SCI can indicate that the first resource is a resource for transmitting BFD-RS through the bit value of 1 bit.

[0171] 1202, the first terminal determines that there is an overlap between the first resource and the second resource.

[0172] 1203, the first terminal triggers resource reselection for the transmission corresponding to the second resource.

[0173] The second resource may be a resource selected by the first terminal based on a sensing-based resource selection mechanism, and the second resource may be a periodic resource.

[0174] In one implementation, the second resource may be a resource that has been selected by the first terminal and has no reservation indication. For example, the first terminal re-evaluates the second resource that has been selected. When the first terminal determines that there is an overlap between the first resource and the second resource, it will trigger resource reselection for the transmission corresponding to the second resource, that is, the first terminal will not transmit on the second resource to avoid the BFD-RS transmitted on the first resource, ensuring the transmission of the BFD-RS.

[0175] In another implementation, the second resource may be a resource that has been selected by the first terminal and has a reservation indication. For example, the first terminal performs resource preemption confirmation on the second resource that has been selected and has a reservation indication. When the first terminal determines that there is an overlap between the first resource and the second resource, it will trigger reselection of the transmission corresponding to the second resource, that is, the first terminal will not transmit on the second resource to avoid the BFD-RS transmitted on the first resource, ensuring the transmission of the BFD-RS.

[0176] In the embodiments of the present application, when the first terminal determines that the second resource that has been selected overlaps with the first resource used by the second terminal to transmit the BFD-RS, the first terminal will trigger resource reselection to avoid the transmission of the BFD-RS, ensuring the transmission of the BFD-RS of the second terminal. Correspondingly, the BFI count performed by the terminal receiving the BFD-RS can also be more accurate.

[0177] Please refer to Figure 13 , which is a schematic flowchart of yet another communication method provided by the embodiments of the present application. As Figure 13 shown, the communication method of this embodiment includes but is not limited to the following steps. In some possible implementation manners, it may also include some of the following steps rather than all steps. The following describes each step by way of example:

[0178] 1301, the second terminal sends indication information. The indication information indicates that there is a resource carrying the BFD-RS among the reserved resources. Correspondingly, the first terminal receives the indication information.

[0179] Exemplarily, the indication information may be carried in the SCI. The SCI may further indicate the resources reserved by the second terminal.

[0180] The indication information indicates that there is a resource carrying BFD-RS among the reserved resources. For example, this indication information occupies 1 bit in the SCI, and the bit value of this 1 bit indicates whether there is a resource carrying BFD-RS among the reserved resources. For instance, if the bit value of this bit is 1, it indicates that there is a resource carrying BFD-RS among the reserved resources; if the bit value of this bit is 0, it indicates that there is no resource carrying BFD-RS among the reserved resources.

[0181] The SCI in the embodiments of this application can be the first-order SCI or the second-order SCI.

[0182] 1302, the first terminal performs resource exclusion according to the indication information.

[0183] The first terminal determines that there is a resource carrying BFD-RS among the resources reserved by the second terminal according to the indication information. To ensure the transmission of BFD-RS, when the first terminal performs resource exclusion, it excludes the candidate resources that overlap with the resources reserved by the second terminal from the candidate resource set.

[0184] In the embodiments of this application, when other terminals perform resource exclusion, they exclude the candidate resources that overlap with the reserved resources carrying BFD-RS, thereby avoiding conflicts with the resources for transmitting BFD-RS and ensuring the transmission of BFD-RS. Correspondingly, the terminal receiving BFD-RS can also perform accurate BFI counting.

[0185] Please refer to Figure 14 , which is a schematic flowchart of another communication method provided by the embodiments of this application. As Figure 14 shown, the communication method of this embodiment includes but is not limited to the following steps. In some possible implementation manners, it may also include some of the following steps rather than all of them. The following describes each step by way of example:

[0186] 1401, the second terminal sends indication information. This indication information indicates that the priority of the current periodic BFD-RS transmission is the highest. Correspondingly, the first terminal receives the indication information.

[0187] Exemplarily, this indication information can be carried in the SCI. This indication information is used to reserve resources for the current periodic BFD-RS transmission. The current periodic BFD-RS transmission can be understood as the ongoing periodic BFD-RS transmission. The SCI can further indicate the resources for the second terminal to periodically transmit BFD-RS.

[0188] The SCI includes indication information, which indicates that the priority of the current periodic BFD-RS transmission is the highest. For example, this indication information indicates that the priority value is 1.

[0189] 1402, the first terminal triggers resource reselection according to the indication information.

[0190] The indication information indicates that the current periodic BFD-RS transmission has the highest priority. Therefore, the first terminal will trigger resource reselection according to the indication information to avoid this BFD-RS transmission. For example, when the first terminal performs resource preemption confirmation, if it is determined that the resources selected and reserved by the first terminal overlap with the resources for periodic BFD-RS transmission, since the current periodic BFD-RS transmission has the highest priority, the first terminal will perform resource reselection on the transmission corresponding to the selected and reserved resources.

[0191] In the embodiments of the present application, the priority of periodic BFD-RS transmission is set to the highest, so that other terminals trigger resource reselection to ensure the transmission of BFD-RS. Correspondingly, the terminal receiving BFD-RS can also perform accurate BFI counting.

[0192] Please refer to Figure 15 , which is a schematic flowchart of another communication method provided by the embodiments of the present application. As Figure 15 shown, the communication method of this embodiment includes but is not limited to the following steps:

[0193] 1501, the terminal device sends BFD-RS on the first resource. This first resource does not belong to the resource pool configured by the network for sidelink communication (denoted as implementation method 1), or this first resource belongs to the resource pool dedicated to BFD-RS transmission configured by the network (denoted as implementation method 2).

[0194] In implementation method 1, the resource pool can be a resource pool configured by the network device for one or more terminal devices for sidelink communication. The resource pool for sidelink communication can be a resource pool determined by the method shown in Chapter 8 of 3GPP TS 38.214.

[0195] In the embodiments of the present application, the first resource for transmitting BFD-RS is excluded from this resource pool, thus not causing transmission conflicts with other terminals.

[0196] In implementation method 1, when the network device determines the resource pool, the resources for transmitting BFD-RS are excluded from the resource pool. For example, the network device excludes the resources on one or more time slots, and the resources on the one or more time slots can be configured for transmitting BFD-RS.

[0197] In Implementation 2, the network device may configure a dedicated resource pool for the terminal device to send BFD-RS, and the resources in the dedicated resource pool are used for the terminal device to send BFD-RS. The resources configured by the network for sidelink communication do not include the resources in the dedicated resource pool, thus avoiding transmission conflicts with other terminals.

[0198] In the embodiments of the present application, the resources for transmitting BFD-RS do not belong to the resource pool configured by the network for sidelink communication, thus avoiding transmission conflicts with other terminals, ensuring the periodic transmission of BFD-RS, and improving the accuracy of BFI counting when counting BFI for the terminal receiving BFD-RS.

[0199] Please refer to Figure 16 , Figure 16 which is a schematic structural diagram of a communication device provided by the embodiments of the present application. The communication device may be a terminal device or a device in the terminal device. For example, it may be a chip or a chip module in the terminal device, or a device that can be used in matching with the terminal device. Figure 16 The shown communication device 100 may include a receiving unit 110 and a determining unit 120, where:

[0200] The receiving unit 110 is configured to receive indication information, where the indication information indicates whether a beam failure detection reference signal BFD-RS is transmitted on a first resource, and the first resource is a resource determined in the resource selection process for transmitting the BFD-RS, and the control information carried by the first resource indicates the resource for transmitting the indication information;

[0201] The determining unit 120 is configured to determine a beam failure instance BFI count according to the indication information.

[0202] In a possible implementation manner, the determining unit 120 is specifically configured to determine the BFI count according to the measurement result on the first resource and the indication information.

[0203] In a possible implementation manner, the determining unit 120 is specifically configured to increase the BFI count when the RSRP measured on the first resource is less than a first threshold and / or when the block error rate BLER determined according to the measurement result on the first resource is greater than a second threshold;

[0204] When the indication information indicates that the BFD-RS is transmitted on the first resource, the BFI count is not increased; and / or when the indication information indicates that the BFD-RS is not transmitted on the first resource, the BFI count is decreased.

[0205] In a possible implementation, the determining unit 120 is specifically configured to increase the BFI count when the RSRP measured on the first resource is less than a first threshold and / or when the BLER determined according to the measurement result on the first resource is greater than a second threshold, if the indication information indicates that the BFD-RS is transmitted on the first resource, and / or not increase the BFI count if the indication information indicates that the BFD-RS is not transmitted on the first resource.

[0206] In a possible implementation, the indication information is carried in the SCI.

[0207] Regarding Figure 16 For the specific embodiments, reference may be made to Figure 6 the description of the embodiments, which will not be repeated here.

[0208] Please refer to Figure 17 , Figure 17 FIG. is a schematic structural diagram of another communication device provided by an embodiment of the present application. The communication device may be a terminal device or a device in the terminal device. For example, it may be a chip or a chip module in the terminal device, or a device that can be used in combination with the terminal device. Figure 17 The communication device 200 shown in FIG. may include a sending unit 210, where:

[0209] The sending unit 210 is configured to send indication information indicating whether a beam failure detection reference signal BFD-RS is transmitted on a first resource. The first resource is a resource determined in a resource selection process for transmitting the BFD-RS, and the control information carried by the first resource indicates the resource for transmitting the indication information.

[0210] In a possible implementation, the indication information is carried in the SCI.

[0211] Regarding Figure 17 For the specific embodiments, reference may be made to Figure 6 the description of the embodiments, which will not be repeated here.

[0212] Please refer to Figure 18 , Figure 18 FIG. is a schematic structural diagram of yet another communication device provided by an embodiment of the present application. The communication device may be a network device or a device in the network device. For example, it may be a chip or a chip module in the network device, or a device that can be used in combination with the network device. Figure 18 The communication device 300 shown in FIG. may include a sending unit 310, where:

[0213] A sending unit 310, configured to send configuration information for configuring an offset, where the offset is used to determine one or more sets of BFD-RS candidate resources.

[0214] In a possible implementation, the one or more sets of BFD-RS candidate resources are determined according to the offset and the resources determined for transmitting BFD-RS during a resource selection process.

[0215] Please refer to Figure 19 , Figure 19 which is a schematic structural diagram of another communication device provided by an embodiment of the present application. The communication device may be a terminal device or a device in the terminal device. For example, it may be a chip or a chip module in the terminal device, or a device that can be used in combination with the terminal device. Figure 19 The illustrated communication device 400 may include a receiving unit 410 and a sending unit 420, where:

[0216] The receiving unit 410 is configured to receive configuration information for configuring an offset, where the offset is used to determine one or more sets of BFD-RS candidate resources;

[0217] The sending unit 420 sends BFD-RS according to the configuration information, or the receiving unit 410 is further configured to receive BFD-RS according to the configuration information.

[0218] In a possible implementation, the one or more sets of BFD-RS candidate resources are determined according to the offset and the resources determined for transmitting BFD-RS during a resource selection process.

[0219] Please refer to Figure 20 , Figure 20 which is a schematic structural diagram of a communication device provided by an embodiment of the present application, and is used to implement the functions of the terminal device in Figure 6 , Figure 8 , Figure 12 , Figure 13 , Figure 14 , Figure 15 above, or is used to implement the functions of the network device in Figure 8 above. The communication device 500 may be a terminal device or a network device, or the communication device 500 may be a device for a terminal device or a network device. The device for a terminal device or a network device may be a chip system or a chip in the terminal device or the network device. Among them, the chip system may be composed of chips, or may include chips and other discrete devices.

[0220] The communication device 500 includes at least one processor 520, which is used to implement the data processing functions of the terminal device or the network in the method provided by the embodiments of the present application. The communication device 500 may further include a communication interface 510, which is used to implement the transceiver operations of the terminal device or the network device in the method provided by the embodiments of the present application. In the embodiments of the present application, the processor 520 may be a Central Processing Unit (CPU), and this processor may also be other general-purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field-Programmable Gate Arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or this processor may also be any conventional processor, etc. In the embodiments of the present application, the communication interface 510 may be a transceiver, a circuit, a bus, a module, or other types of communication interfaces, which are used to communicate with other devices through a transmission medium. For example, the communication interface 510 is used for the communication device 500 to communicate with other devices. The processor 520 uses the communication interface 510 to send and receive data, and is used to implement the above method embodiments Figure 6 , Figure 8 , Figure 12 , Figure 13 , Figure 14 , Figure 15 described in the method.

[0221] The communication device 500 may further include at least one memory 530, which is used to store program instructions and / or data. The memory 530 is coupled to the processor 520. The coupling in the embodiments of the present application is an indirect coupling or communication connection between devices, units, or modules, which may be electrical, mechanical, or other forms, and is used for information interaction between devices, units, or modules. The processor 520 may cooperate with the memory 530. The processor 520 may execute the program instructions stored in the memory 530. At least one of the at least one memories may be included in the processor.

[0222] After the communication device 500 is powered on, the processor 520 may read the software program in the memory 530, interpret and execute the instructions of the software program, and process the data of the software program. When data needs to be wirelessly transmitted, after the processor 520 performs baseband processing on the data to be transmitted, it outputs a baseband signal to the radio frequency circuit( Figure 20(not shown), the radio frequency circuit processes the baseband signal into a radio frequency signal and sends the radio frequency signal outwards in the form of electromagnetic waves through the antenna. When data is to be sent to the communication device 500, the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor 520. The processor 520 converts the baseband signal into data and processes the data.

[0223] In another implementation, the radio frequency circuit and the antenna can be arranged independently of the processor 520 that performs baseband processing. For example, in a distributed scenario, the radio frequency circuit and the antenna can be independent devices and arranged in a remote manner.

[0224] In the embodiments of the present application, the specific connection medium between the communication interface 510, the processor 520, and the memory 530 is not limited. In the embodiments of the present application Figure 20 it is shown that the memory 530, the processor 520, and the communication interface 510 are connected through a bus 540. The bus is represented by a thick line in Figure 20 which is only for illustrative purposes and not to be taken as a limitation. The bus can be divided into an address bus, a data bus, a control bus, etc. For the sake of simplicity of representation, Figure 20 only one thick line is used in

[0225]

[0226]

[0227]

[0228] When the communication device 500 is specifically used for a terminal device, for example, when the communication device 500 is specifically a chip or a chip system, the signal output or received by the communication interface 510 can be a baseband signal. When the communication device 500 is specifically a terminal device, the signal output or received by the communication interface 510 can be a radio frequency signal.

[0228] The above-mentioned memory 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 but not limitation, many forms of random access memory (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), synchlink dynamic random access memory (SLDRAM), and direct rambus random access memory (DR RAM).

[0229] An embodiment of the present application provides a chip. The chip includes: a processor, and optionally, the chip further includes a memory. Among them, the number of processors can be one or more, and the number of memories can be one or more. By reading the instructions and data stored on the memory, the processor can execute the methods shown in Figure 6 , Figure 8 , Figure 12 , Figure 13 , Figure 14 , Figure 15 and the steps performed by related embodiments.

[0230] As shown in Figure 21 , Figure 21 is a schematic structural diagram of a module device provided by an embodiment of the present application. The module device 600 can execute the relevant steps of the terminal device in the foregoing method embodiment, or the module device 600 can execute the relevant steps of the network device in the foregoing method embodiment.

[0231] The module device 600 includes: a communication module 610, a power module 620, a storage module 630, and a chip module 640. Among them, the power module 620 is used to provide electrical energy for the module device; the storage module 630 is used to store data and / or instructions; the communication module 610 is used to communicate with external devices; the chip module 640 is used to call the data and / or instructions stored in the storage module 630, and in combination with the communication module 610, can execute the methods shown in the above such as Figure 6 , Figure 8 , Figure 12 , Figure 13 , Figure 14 , Figure 15 , and the steps executed by related embodiments.

[0232] An embodiment of the present application also provides a computer-readable storage medium. The computer-readable storage medium stores a computer program, and the computer program includes program instructions. When an electronic device executes the program instructions, it implements the steps executed by the terminal device in the methods shown in the above Figure 6 , Figure 8 , Figure 12 , Figure 13 , Figure 14 , Figure 15 , or implements the steps executed by the network device in the methods shown in the above Figure 8 .

[0233] The computer-readable storage medium may be an internal storage unit of the terminal device or network device described in any of the foregoing embodiments, such as the hard disk or memory of the device. The computer-readable storage medium may also be an external storage device of the terminal device or network device, such as a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, a flash card, etc. equipped on the device. Further, the computer-readable storage medium may also include both the internal storage unit of the terminal device or network device and the external storage device. The computer-readable storage medium is used to store the computer program and other programs and data required by the terminal device or network device. The computer-readable storage medium may also be used to temporarily store data that has been output or will be output. The computer-readable storage medium may be any available medium that a computer can access or a data storage device such as a server or data center that includes one or more collections of available media. The available medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., high-density digital video disc (DVD)), or a semiconductor medium. The semiconductor medium may be a solid-state drive.

[0234] Regarding each device and product described in the above embodiments, each module / unit included therein can be a software module / unit, a hardware module / unit, or can be partially a software module / unit and partially a hardware module / unit. For example, for each device and product applied to or integrated into a chip, each module / unit included therein can be implemented in the form of hardware such as circuits. Alternatively, at least some of the modules / units can be implemented in the form of a software program that runs on a processor integrated inside the chip, and the remaining (if any) part of the modules / units can be implemented in the form of hardware such as circuits. For each device and product applied to or integrated into a chip module, each module / unit included therein can be implemented in the form of hardware such as circuits. Different modules / units can be located in the same component (such as a chip, a circuit module, etc.) or different components of the chip module. Alternatively, at least some of the modules / units can be implemented in the form of a software program that runs on a processor integrated inside the chip module, and the remaining (if any) part of the modules / units can be implemented in the form of hardware such as circuits. For each device and product applied to or integrated into a data acquisition node, each module / unit included therein can be implemented in the form of hardware such as circuits. Different modules / units can be located in the same component (such as a chip, a circuit module, etc.) or different components inside the terminal device. Alternatively, at least some of the modules / units can be implemented in the form of a software program that runs on a processor integrated inside the data acquisition node, and the remaining (if any) part of the modules / units can be implemented in the form of hardware such as circuits.

[0235] The above embodiments can be implemented in whole or in part by software, hardware, firmware, or any other combination. When implemented using software, the above embodiments can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions or computer programs. When the computer instructions or computer programs are loaded or executed on a computer, the processes or functions described in the embodiments of the present application are generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center in a wired or wireless manner.

[0236] It should be understood that in various embodiments of the present application, the magnitudes of the serial numbers of the above processes do not indicate the order of execution, and the order of execution of each process should be determined by its function and internal logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

[0237] In several embodiments provided by the present application, it should be understood that the disclosed methods, devices, and systems can be implemented in other ways. For example, the device embodiments described above are merely illustrative; for example, the division of the units is only a logical function division, and there may be other division methods in actual implementation; for example, 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 displayed or discussed coupling or direct coupling or communication connection between each other can be through some interfaces, and the indirect coupling or communication connection of the devices or units can be in electrical, mechanical, or other forms.

[0238] The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they can be located in one place or distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0239] In addition, each functional unit in various embodiments of the present invention can be integrated into a processing unit, or each unit can be physically included separately, or two or more units can be integrated into one unit. The above integrated units can be implemented in the form of hardware or in the form of a combination of hardware and software functional units.

[0240] The above integrated units implemented in the form of software functional units can be stored in a computer-readable storage medium. The above software functional units stored in a storage medium include several instructions to enable a computer device (which can be a personal computer, a server, or a network gateway node, etc.) to execute some steps of the methods described in various embodiments of the present invention.

[0241] Those of ordinary skill in the art can understand that all or part of the processes of implementing the above embodiments of the method can be completed by instructing relevant hardware through a computer program. The program can be stored in a computer-readable storage medium. When the program is executed, it can include the processes of the above embodiments of the methods. Among them, the storage medium can be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM), etc.

[0242] The above disclosure is only a preferred embodiment of the present application. Of course, it cannot be used to limit the scope of the rights of the present application. Those of ordinary skill in the art can understand all or part of the processes of implementing the above embodiments and make equivalent changes according to the claims of the present application, which still fall within the scope covered by the application.

Claims

1. A communication method, characterized in that, Comprising: Receiving indication information, where the indication information indicates whether a beam failure detection reference signal (BFD-RS) is transmitted on a first resource, the first resource being a resource determined in a resource selection process for transmitting the BFD-RS, and control information carried by the first resource indicates a resource for transmitting the indication information; Determining a beam failure instance (BFI) count according to the indication information.

2. The method according to claim 1, characterized in that The determining the BFI count according to the indication information includes: Determining the BFI count according to a measurement result on the first resource and the indication information.

3. The method according to claim 2, characterized in that, The determining the BFI count according to a measurement result on the first resource and the indication information includes: In a case where a reference signal received power (RSRP) measured on the first resource is less than a first threshold, and / or in a case where a block error rate (BLER) determined according to the measurement result on the first resource is greater than a second threshold, increasing the BFI count; In a case where the indication information indicates that the BFD-RS is transmitted on the first resource, not increasing the BFI count; and / or in a case where the indication information indicates that the BFD-RS is not transmitted on the first resource, decreasing the BFI count.

4. The method according to claim 2, wherein The determining the BFI count according to a measurement result on the first resource and the indication information includes: In a case where the RSRP measured on the first resource is less than the first threshold, and / or in a case where the BLER determined according to the measurement result on the first resource is greater than the second threshold, if the indication information indicates that the BFD-RS is transmitted on the first resource, increasing the BFI count, and / or if the indication information indicates that the BFD-RS is not transmitted on the first resource, not increasing the BFI count.

5. The method according to any one of claims 1-4, characterized in that The indication information is carried in sidelink control information (SCI).

6. A communication method, characterized in that, Comprising: Transmitting indication information, where the indication information indicates whether a beam failure detection reference signal (BFD-RS) is transmitted on a first resource, the first resource being a resource determined in a resource selection process for transmitting the BFD-RS, and control information carried by the first resource indicates a resource for transmitting the indication information.

7. The method according to claim 6, characterized in that, The indication information is carried in sidelink control information (SCI).

8. A communication method, characterized in that, Comprising: Transmitting configuration information, where the configuration information is used to configure an offset, and the offset is used to determine one or more sets of BFD-RS candidate resources.

9. The method according to claim 8, wherein The one or more sets of BFD-RS candidate resources are determined according to the offset and a resource determined in a resource selection process for transmitting the BFD-RS.

10. A communication method, characterized in that, Comprising: Receiving configuration information, where the configuration information is used to configure an offset, and the offset is used to determine one or more sets of BFD-RS candidate resources; Transmitting or receiving the BFD-RS according to the configuration information.

11. The method according to claim 10, characterized in that, The one or more sets of BFD-RS candidate resources are determined according to the offset and a resource determined in a resource selection process for transmitting the BFD-RS.

12. A communication device, characterized in that, Comprising: A receiving unit, configured to receive indication information, where the indication information indicates whether a beam failure detection reference signal (BFD-RS) is transmitted on a first resource, the first resource being a resource determined in a resource selection process for transmitting the BFD-RS, and control information carried by the first resource indicates a resource for transmitting the indication information; A determining unit, configured to determine a beam failure instance (BFI) count according to the indication information.

13. A communication device, characterized in that, Comprising: A transmitting unit, configured to transmit indication information, where the indication information indicates whether a beam failure detection reference signal (BFD-RS) is transmitted on a first resource, the first resource being a resource determined in a resource selection process for transmitting the BFD-RS, and control information carried by the first resource indicates a resource for transmitting the indication information.

14. A communication device, characterized in that, Comprising: A transmitting unit, configured to transmit configuration information, where the configuration information is used to configure an offset, and the offset is used to determine one or more sets of BFD-RS candidate resources.

15. A communication device, characterized in that, Comprising: A receiving unit, configured to receive configuration information, where the configuration information is used to configure an offset, and the offset is used to determine one or more sets of BFD-RS candidate resources; The receiving unit is further configured to receive a BFD-RS according to the configuration information, or the apparatus further comprises a transmitting unit, and the transmitting unit is configured to transmit a BFD-RS according to the configuration information.

16. A communication device, characterized in that, The communication apparatus comprises a processor and a memory, the processor and the memory are connected to each other, where the memory is used to store a computer program, the computer program comprises program instructions, and the processor calls the program instructions to execute the method according to any one of claims 1 to 5, or execute the method according to claim 6 or 7, or execute the method according to claim 8 or 9, or execute the method according to claim 10 or 11.

17. A chip, characterized in that, The chip comprises a processor and an interface, the processor and the interface are coupled; the interface is used to receive or output a signal, and the processor is used to execute code instructions to execute the method according to any one of claims 1 to 5, or execute the method according to claim 6 or 7, or execute the method according to claim 8 or 9, or execute the method according to claim 10 or 11.

18. A module device, characterized in that, The module device comprises a communication module, a power module, a storage module, and a chip module, where: The power module is used to supply electrical energy to the module device; The storage module is used to store data and / or instructions; The communication module is used to communicate with an external device; The chip module is used to call data and / or instructions stored in the storage module, and in combination with the communication module, execute the method according to any one of claims 1 to 5, or execute the method according to claim 6 or 7, or execute the method according to claim 8 or 9, or execute the method according to claim 10 or 11.

19. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program, and the computer program includes program instructions. When the computer executes the program instructions, the method described in any one of claims 1 to 5 is implemented, or the method described in claim 6 or 7 is executed, or the method described in claim 8 or 9 is executed, or the method described in claim 10 or 11 is executed.

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