A method and apparatus for determining resources

Abstract

This application discloses a resource determination method and apparatus to select a more suitable SR resource for a physical resource experiencing a transmission failure (BFR) when a BFR occurs, thereby increasing the transmission reliability of LRR and reducing the latency of transmission failure recovery. The resource determination method provided in this application includes: determining the physical resource experiencing a transmission failure; and determining an SR resource for the physical resource experiencing a transmission failure based on the correlation between network-side configured or predefined scheduling request (SR) resources and relevant parameters of the physical resource.

Description

[0001] This application claims priority to Chinese Patent Application No. 202110363834.9, filed on April 2, 2021, entitled “A Method and Apparatus for Determining Resources”, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of communication technology, and in particular to a method and apparatus for determining resources. Background Technology

[0003] In existing NR (New Radio) systems, each cell group can be configured with a Scheduling Request (SR) resource. When one or more cells in the cell group experience beam failure, the terminal can send an LRR (Link Recovery Request) on the configured SR resource to request the base station to allocate uplink physical shared channel (PUSCH) transmission resources so that the terminal can report more information about the beam failure (such as the cell index where the beam failure occurred, the reporting of new candidate beams, etc.). The relevant information is carried in the BFR (beam failure recovery) MAC CE (Medium Access Control, Control Element) signaling.

[0004] Furthermore, NR Release 16 (Rel-16) already supports deploying multiple Transmission Points (TRPs) within a single cell to simultaneously serve terminals. However, when both cell-based BFRs and TRP-based BFRs exist in the system, there is currently no solution for determining suitable SR resources for failed TRPs or cells to achieve rapid beam recovery. Summary of the Invention

[0005] This application provides a resource determination method and apparatus to select a more suitable SR resource for the physical resource that has experienced a transmission failure when a BFR occurs, thereby increasing the transmission reliability of LRR and reducing the latency of transmission failure recovery.

[0006] On the terminal side, an embodiment of this application provides a resource determination method, including:

[0007] Identify the physical resource where the transmission failure occurred;

[0008] Based on the correlation between the network-side configured or predefined scheduling request (SR) resources and the relevant parameters of the physical resources, the SR resources for the physical resources that have experienced transmission failures are determined.

[0009] This method allows the terminal to determine a more suitable SR resource for a physical resource that has experienced a transmission failure, based on the correlation between network-configured or predefined scheduling request (SR) resources and relevant parameters of physical resources. Therefore, when a BFR (Breakthrough Failure) occurs, the terminal can select a suitable SR resource to send an LRR (Learning Redirect) to the failed cell or TRP (Telematics Resource Platform), and then forward the LRR to a cell or TRP without failure. This increases the transmission reliability of the LRR and reduces the latency of transmission failure recovery.

[0010] Optionally, the SR resources are determined for the physical resources based on the pre-established correlation between SR resources and beam failure recovery (BFR) levels.

[0011] Optionally, SR resources are determined for the physical resources, specifically including:

[0012] When a set of physical resources fails to transmit, the BFR level corresponding to the physical resource is determined according to the network-side configuration or predefined rules; and the SR resource associated with the BFR level is determined for the physical resource.

[0013] Optionally, determining the SR resource associated with the BFR level for the physical resource specifically includes: if the determined BFR level is the first level, then determining the SR resource associated with the first level for the physical resource based on the pre-established association relationship between the SR resource and the first level;

[0014] If the determined BFR level is the second level, then based on the pre-established association between SR resources and the second level, the SR resources associated with the second level are determined for the physical resources.

[0015] Optionally, based on the pre-established association between SR resources and the second level, SR resources associated with the second level are determined for the physical resource, specifically including:

[0016] Based on the association between SR resources and a set of physical resource indexes, SR resources are determined for the physical resources.

[0017] Optionally, the BFR level corresponding to the physical resource is determined according to network-side configuration or predefined rules, including at least one of the following:

[0018] The terminal determines the BFR level of the cell as either Level 1, Level 2, or a combination of both based on the cell's configuration parameters. Specifically, the terminal determines the BFR level based on the number of BFD RS sets. When the cell configures or indicates one BFD RS set, the terminal determines the BFR level of the cell as Level 1; when the cell configures or indicates two BFD RS sets, the terminal determines the BFR level of the cell as Level 2.

[0019] The terminal determines the BFR level based on the number of possible values ​​of CORESETPoolIndex configured on the network device side. When the number of possible values ​​of CORESETPoolIndex is 0 or 1, the terminal determines the BFR level of the cell to be the first level; when the number of possible values ​​of CORESETPoolIndex is 2, the terminal determines the BFR level of the cell to be the second level.

[0020] The terminal determines the BFR level based on the number of CORESET subsets or BFR procedures configured on the network device side. When the number of CORESET subsets or BFR procedures is 1, the terminal determines the BFR level of the cell to be the first level; when the number of CORESET subsets or BFR procedures is 2, the terminal determines the BFR level of the cell to be the second level.

[0021] Optionally, SR resources are determined for the physical resources based on a predetermined association between SR resources and a higher-level parameter list, wherein the higher-level parameter list includes a physical resource table or a beam failure recovery (BFR) table.

[0022] Optionally, SR resources are determined for the physical resources, specifically including:

[0023] When a BFR is detected, determine the physical resource where the transmission failure occurred, or the higher-level parameter list where the BFR process index is located;

[0024] Based on the determined list of high-level parameters, the corresponding SR resources are determined for the physical resources.

[0025] Optionally, the SR resources are determined for the physical resources based on the predetermined association between the SR resources and the transmission failure detection reference signal set (BFD RS set).

[0026] Optionally, SR resources are determined for the physical resources, specifically including:

[0027] When it is detected that the measured values ​​of all BFD RSs in a BFD RS set are below a preset threshold, the SR resource associated with that BFD RS set is determined for the physical resource.

[0028] Optionally, the SR resource is determined for the physical resource based on the pre-determined association between the SR resource and the index of the control resource set group CORESETPoolIndex or the index of the control resource set CORESET subset configured by the higher layer.

[0029] Optionally, SR resources are determined for the physical resources, specifically including:

[0030] Based on the value of the parameter CORESETPoolIndex of the CORESET group where the transmission failure occurred, or the index of the CORESET subset, the corresponding SR resource is determined for the physical resource.

[0031] Optionally, the SR resource i determined by the terminal is used for the CORESET group i where the transmission failure occurred; wherein,

[0032] A CORESET with a CORESETPoolIndex value of 0 or no CORESETPoolIndex configured is CORESET group 0; a CORESET with a CORESETPoolIndex value of 1 is CORESET group 1.

[0033] Alternatively, a CORESET with a CORESETPoolIndex value of 0 or no CORESETPoolIndex configured is CORESET group 0; a CORESET with a CORESETPoolIndex value of 1 is CORESET group 1; and a group with CORESETPoolIndex values ​​of 0 and 1 is CORESET group 2.

[0034] Alternatively, a CORESET with a CORESETPoolIndex value of 0 is CORESET group 0, a CORESET with a CORESETPoolIndex value of 1 is CORESET group 1, and a CORESET without a configured CORESETPoolIndex is CORESET group 2.

[0035] Alternatively, a CORESET with a CORESETPoolIndex value of 0 is CORESET group 0, a CORESET with a CORESETPoolIndex value of 1 is CORESET group 1, and a CORESET with a CORESETPoolIndex value of 2 is CORESET group 2.

[0036] Alternatively, the kth CORESET subset configured in the high-level parameter settings can be CORESET group k.

[0037] Optionally, SR resources are determined for the physical resources based on the association between SR resources configured on the network device side and the BFR process index.

[0038] Optionally, SR resources are determined for the physical resources, specifically including:

[0039] When a transmission failure is detected in the physical resource corresponding to a BFR process index, an SR resource associated with that BFR process index is determined for the physical resource.

[0040] Optionally, when the SR resources determined for the physical resource have multiple active spatial relationships, the method further includes:

[0041] From the multiple active spatial relationships, select the spatial relationship associated with the physical resource index that has not experienced a transmission failure and send a Link Recovery Request (LRR).

[0042] Optionally, the physical resource index includes one or more of the following indexes: the index of the beam failure detection reference signal set (BFD RS set) or the index of the NBI set, the beam failure recovery (BFR) process index, the value of the control resource set group index (CORESETPoolIndex), and the index of the control resource set subset (CORESET subset).

[0043] Optionally, the physical resource that experienced the transmission failure is a set of physical resources determined from one or more sets of physical resources that experienced the transmission failure, and the SR resource is determined based on the determined set of physical resources.

[0044] Optionally, a set of physical resources determined from one or more sets of physical resources where transmission failures occurred, based on at least one of the following:

[0045] The carrier unit (CC) index of the physical resource where the transmission failure occurred;

[0046] Index of the physical resource where the transmission failed;

[0047] Index of the BFD RS set where a transmission failure occurred.

[0048] On the network side, this application provides a resource determination method, including:

[0049] Configure the correlation between relevant parameters of SR resources and physical resources; the physical resources are the cells or transmission points (TRPs) where transmission failures have occurred.

[0050] The association relationship is notified to the terminal, so that the terminal determines the SR resource for the physical resource based on the association relationship.

[0051] Optionally, the relevant parameters of the physical resources specifically include:

[0052] Beam failure recovery to BFR level; or,

[0053] High-level parameter list; or,

[0054] Transmission Failure Detection Reference Signal Set (BFD RS set); or,

[0055] Control resource set group index CORESETPoolIndex or control resource set CORESET subset index.

[0056] On the network side, an information transmission method provided in this application includes:

[0057] Send a notification to the terminal containing the beam failure recovery (BFR) level, which includes: a first level and / or a second level.

[0058] Optionally, the notification may also include transmission failure detection reference signal set (BFD RS set) information.

[0059] On the terminal side, an information transmission method provided in this application includes:

[0060] Obtain the notification sent by the network side, which includes the beam failure recovery (BFR) level.

[0061] Obtain the BFR level from the notification.

[0062] Optionally, the method further includes: obtaining transmission failure detection reference signal set (BFD RS set) information from the notification.

[0063] Optionally, the method further includes:

[0064] Based on the BFR level, determine the transmission failure detection reference signal set (BFD RS set) information.

[0065] On the terminal side, an embodiment of this application provides a resource determination device, comprising:

[0066] Memory, used to store program instructions;

[0067] The processor is configured to call program instructions stored in the memory and execute them according to the obtained program:

[0068] Identify the physical resource where the transmission failure occurred;

[0069] Based on the correlation between the network-side configured or predefined scheduling request (SR) resources and the relevant parameters of the physical resources, the SR resources for the physical resources that have experienced transmission failures are determined.

[0070] Optionally, the SR resources are determined for the physical resources based on the pre-established correlation between SR resources and beam failure recovery (BFR) levels.

[0071] Optionally, SR resources are determined for the physical resources, specifically including:

[0072] When a set of physical resources fails to transmit, the BFR level corresponding to the physical resource is determined according to the network-side configuration or predefined rules; and the SR resource associated with the BFR level is determined for the physical resource.

[0073] Optionally, determining the SR resource associated with the BFR level for the physical resource specifically includes: if the determined BFR level is the first level, then determining the SR resource associated with the first level for the physical resource based on the pre-established association relationship between the SR resource and the first level;

[0074] If the determined BFR level is the second level, then based on the pre-established association between SR resources and the second level, the SR resources associated with the second level are determined for the physical resources.

[0075] Optionally, based on the pre-established association between SR resources and the second level, SR resources associated with the second level are determined for the physical resource, specifically including:

[0076] Based on the association between SR resources and a set of physical resource indexes, SR resources are determined for the physical resources.

[0077] Optionally, the BFR level corresponding to the physical resource is determined according to network-side configuration or predefined rules, including at least one of the following:

[0078] The terminal determines the BFR level of the cell as either Level 1, Level 2, or a combination of both based on the cell's configuration parameters. Specifically, the terminal determines the BFR level based on the number of BFD RS sets. When the cell configures or indicates one BFD RS set, the terminal determines the BFR level of the cell as Level 1; when the cell configures or indicates two BFD RS sets, the terminal determines the BFR level of the cell as Level 2.

[0079] The terminal determines the BFR level based on the number of possible values ​​of CORESETPoolIndex configured on the network device side. When the number of possible values ​​of CORESETPoolIndex is 0 or 1, the terminal determines the BFR level of the cell to be the first level; when the number of possible values ​​of CORESETPoolIndex is 2, the terminal determines the BFR level of the cell to be the second level.

[0080] The terminal determines the BFR level based on the number of CORESET subsets or BFR procedures configured on the network device side. When the number of CORESET subsets or BFR procedures is 1, the terminal determines the BFR level of the cell to be the first level; when the number of CORESET subsets or BFR procedures is 2, the terminal determines the BFR level of the cell to be the second level.

[0081] Optionally, SR resources are determined for the physical resources based on a predetermined association between SR resources and a higher-level parameter list, wherein the higher-level parameter list includes a physical resource table or a beam failure recovery (BFR) table.

[0082] Optionally, SR resources are determined for the physical resources, specifically including:

[0083] When a BFR is detected, determine the physical resource where the transmission failure occurred, or the higher-level parameter list where the BFR process index is located;

[0084] Based on the determined list of high-level parameters, the corresponding SR resources are determined for the physical resources.

[0085] Optionally, the SR resources are determined for the physical resources based on the predetermined association between the SR resources and the transmission failure detection reference signal set (BFD RS set).

[0086] Optionally, SR resources are determined for the physical resources, specifically including:

[0087] When it is detected that the measured values ​​of all BFD RSs in a BFD RS set are below a preset threshold, the SR resource associated with that BFD RS set is determined for the physical resource.

[0088] Optionally, the SR resource is determined for the physical resource based on the pre-determined association between the SR resource and the index of the control resource set group CORESETPoolIndex or the index of the control resource set CORESET subset configured by the higher layer.

[0089] Optionally, SR resources are determined for the physical resources, specifically including:

[0090] Based on the value of the parameter CORESETPoolIndex of the CORESET group where the transmission failure occurred, or the index of the CORESET subset, the corresponding SR resource is determined for the physical resource.

[0091] Optionally, the determined SR resource i is used for the CORESET group i where the transmission failure occurred; wherein,

[0092] A CORESET with a CORESETPoolIndex value of 0 or no CORESETPoolIndex configured is CORESET group 0; a CORESET with a CORESETPoolIndex value of 1 is CORESET group 1.

[0093] Alternatively, a CORESET with a CORESETPoolIndex value of 0 or no CORESETPoolIndex configured is CORESET group 0; a CORESET with a CORESETPoolIndex value of 1 is CORESET group 1; and a group with CORESETPoolIndex values ​​of 0 and 1 is CORESET group 2.

[0094] Alternatively, a CORESET with a CORESETPoolIndex value of 0 is CORESET group 0, a CORESET with a CORESETPoolIndex value of 1 is CORESET group 1, and a CORESET without a configured CORESETPoolIndex is CORESET group 2.

[0095] Alternatively, a CORESET with a CORESETPoolIndex value of 0 is CORESET group 0, a CORESET with a CORESETPoolIndex value of 1 is CORESET group 1, and a CORESET with a CORESETPoolIndex value of 2 is CORESET group 2.

[0096] Alternatively, the kth CORESET subset configured in the high-level parameter settings can be CORESET group k.

[0097] Optionally, SR resources are determined for the physical resources based on the association between SR resources configured on the network device side and the BFR process index.

[0098] Optionally, SR resources are determined for the physical resources, specifically including:

[0099] When a transmission failure is detected in the physical resource corresponding to a BFR process index, an SR resource associated with that BFR process index is determined for the physical resource.

[0100] Optionally, when the SR resources determined for the physical resource have multiple active spatial relationships, the processor is further configured to:

[0101] From the multiple active spatial relationships, select the spatial relationship associated with the physical resource index that has not experienced a transmission failure and send a Link Recovery Request (LRR).

[0102] Optionally, the physical resource index includes one or more of the following indexes: the index of the beam failure detection reference signal set (BFD RS set) or the index of the NBI set, the beam failure recovery (BFR) process index, the value of the control resource set group index (CORESETPoolIndex), and the index of the control resource set subset (CORESET subset).

[0103] Optionally, the physical resource that experienced the transmission failure is a set of physical resources determined from one or more sets of physical resources that experienced the transmission failure, and the SR resource is determined based on the determined set of physical resources.

[0104] Optionally, a set of physical resources determined from one or more sets of physical resources where transmission failures occurred, based on at least one of the following:

[0105] The carrier unit (CC) index of the physical resource where the transmission failure occurred;

[0106] Index of the physical resource where the transmission failed;

[0107] Index of the BFD RS set where a transmission failure occurred.

[0108] On the network side, this application provides a resource determination device, including:

[0109] Memory, used to store program instructions;

[0110] The processor is configured to call program instructions stored in the memory and execute them according to the obtained program:

[0111] Configure the correlation between relevant parameters of SR resources and physical resources; the physical resources are the cells or transmission points (TRPs) where transmission failures have occurred.

[0112] The association relationship is notified to the terminal, so that the terminal determines the SR resource for the physical resource based on the association relationship.

[0113] Optionally, the relevant parameters of the physical resources specifically include:

[0114] Beam failure recovery to BFR level; or,

[0115] High-level parameter list; or,

[0116] Transmission Failure Detection Reference Signal Set (BFD RS set); or,

[0117] Control resource set group index CORESETPoolIndex or control resource set CORESET subset index.

[0118] On the network side, an information transmission device provided in this application includes:

[0119] Memory, used to store program instructions;

[0120] The processor is configured to call program instructions stored in the memory and execute them according to the obtained program:

[0121] Send a notification to the terminal containing the beam failure recovery (BFR) level, which includes: a first level and / or a second level.

[0122] Optionally, the notification may also include transmission failure detection reference signal set (BFD RS set) information.

[0123] On the terminal side, an information transmission device provided in this application embodiment includes:

[0124] Memory, used to store program instructions;

[0125] The processor is configured to call program instructions stored in the memory and execute them according to the obtained program:

[0126] Obtain the notification sent by the network side, which includes the beam failure recovery (BFR) level.

[0127] Obtain the BFR level from the notification.

[0128] Optionally, the processor is further configured to invoke program instructions stored in the memory and execute them according to the obtained program:

[0129] Obtain the Transmission Failure Detection Reference Signal Set (BFD RS set) information from the notification.

[0130] Optionally, the processor is further configured to invoke program instructions stored in the memory and execute them according to the obtained program:

[0131] Based on the BFR level, determine the transmission failure detection reference signal set (BFD RS set) information.

[0132] On the terminal side, another resource determination device provided in this application embodiment is characterized by comprising:

[0133] The first determining unit is used to determine the physical resource where the transmission failure occurred;

[0134] The second determining unit is used to determine the SR resource for the physical resource that has experienced transmission failure based on the correlation between the scheduling request SR resource configured or predefined on the network side and the relevant parameters of the physical resource.

[0135] On the network side, another resource determination apparatus provided in this application embodiment includes:

[0136] The configuration unit is used to configure the association between relevant parameters of SR resources and physical resources; the physical resources are cells or transmission points (TRPs) where transmission failures have occurred.

[0137] The notification unit is used to notify the terminal of the association relationship, so that the terminal determines the SR resource for the physical resource based on the association relationship.

[0138] On the network side, another information transmission device provided in this application embodiment includes:

[0139] The notification unit is used to send a notification to the terminal containing a beam failure recovery (BFR) level, wherein the BFR level includes: a first level and / or a second level.

[0140] On the terminal side, another information transmission device provided in this application embodiment includes:

[0141] The first acquisition unit is used to acquire the notification sent by the network side, which includes the beam failure recovery (BFR) level.

[0142] The second acquisition unit is used to acquire the BFR level from the notification.

[0143] Another embodiment of this application provides a computing device including a memory and a processor, wherein the memory is used to store program instructions, and the processor is used to call the program instructions stored in the memory and execute any of the methods described above according to the obtained program.

[0144] Another embodiment of this application provides a computer storage medium storing computer-executable instructions for causing the computer to perform any of the methods described above. Attached Figure Description

[0145] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0146] Figure 1 A schematic diagram illustrating the beam failure recovery mechanism at the TRP level for SCell A and C, and the beam failure recovery mechanism at the cell level for SCell B and D, provided in the embodiments of this application.

[0147] Figure 2A flowchart illustrating a resource determination method on the terminal side provided in an embodiment of this application;

[0148] Figure 3 A flowchart illustrating a resource determination method on the network side provided in an embodiment of this application;

[0149] Figure 4 A schematic diagram of a resource determination device on the terminal side provided in an embodiment of this application;

[0150] Figure 5 A schematic diagram of a resource determination device on the network side provided in an embodiment of this application;

[0151] Figure 6 A schematic diagram of another resource determination device on the terminal side provided in an embodiment of this application;

[0152] Figure 7 A schematic diagram of another resource determination device on the network side provided in an embodiment of this application;

[0153] Figure 8 A flowchart illustrating an information transmission method on the network side provided in an embodiment of this application;

[0154] Figure 9 A schematic flowchart illustrating an information transmission method on the terminal side provided in an embodiment of this application;

[0155] Figure 10 A schematic diagram of the structure of an information transmission device on the network side provided in an embodiment of this application;

[0156] Figure 11 This is a schematic diagram of the structure of an information transmission device on the terminal side provided in an embodiment of this application. Detailed Implementation

[0157] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0158] In NR Release 16 (Rel-16), it is now supported that a single cell can deploy multiple Transmission Points (TRPs) to simultaneously serve terminals. In beam failure recovery based on multiple TRPs, it is now possible to configure up to two SR resources for multiple TRPs, allowing the terminal to request resources for each TRP to send a Beam Failure Recovery (BFR) MAC-CE. For example, the spatial relationship between the two SR resources can be that they point to beams from two different TRPs. When one TRP fails, the terminal can choose to send a Link Recovery Request (LRR) to the non-failed TRP to increase the transmission reliability of the LRR and reduce the latency of transmission failure recovery.

[0159] However, a cell group may contain multiple cells, some of which may have only one TRP, while others may have multiple TRPs. Terminals in some cells may perform TRP-level beam failure reporting, while those in others may perform cell-level beam failure reporting. Even within the same cell, some cells may support both TRP-level and cell-level beam failure reporting. In this scenario, all cells in a cell group may only be configured with a maximum of three SR resources (one cell-level SR resource and two TRP-level SR resources). Determining the appropriate SR resource for beam failure reporting for each cell or TRP becomes a problem. If the SR resource is not appropriately determined, terminals may send LRR (Low-Range Redirect) to cells or TRPs with poor link quality, reducing the transmission reliability of LRR and increasing beam failure recovery latency. This is especially true for cells using cell-level BFR (Banded Frame Rate) which may share similar propagation environments, spatial relationships, and other large-scale parameters with a TRP in other cells (e.g., in intra-band carrier aggregation (CA) scenarios). When selecting SR resources, cells or TRPs with similar link transmission conditions should choose the same SR resource.

[0160] Therefore, this application provides a resource determination method and apparatus to select a more suitable SR resource for the physical resource that has experienced a transmission failure when a BFR occurs, thereby increasing the transmission reliability of LRR and reducing the delay of beam failure recovery.

[0161] The method and apparatus are based on the same concept of the application. Since the methods and apparatus solve problems in similar ways, the implementation of the apparatus and methods can refer to each other, and the repeated parts will not be described again.

[0162] The technical solutions provided in this application can be applied to various systems, especially 5G systems. For example, applicable systems include Global System for Mobile Communication (GSM), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA) General Packet Radio Service (GPRS), Long Term Evolution (LTE), LTE Frequency Division Duplex (FDD), LTE Time Division Duplex (TDD), Universal Mobile Telecommunications System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX), 5G systems, and 5G NR systems. All of these systems include terminal equipment and network equipment.

[0163] The terminal devices involved in the embodiments of this application can be devices that provide voice and / or data connectivity to users, handheld devices with wireless connectivity, or other processing devices connected to a wireless modem. The names of the terminal devices may differ in different systems; for example, in a 5G system, a terminal device can be called user equipment (UE). Wireless terminal devices can communicate with one or more core networks via the RAN. Wireless terminal devices can be mobile terminal devices, such as mobile phones (or "cellular" phones) and computers with mobile terminal devices, for example, portable, pocket-sized, handheld, computer-embedded, or vehicle-mounted mobile devices that exchange voice and / or data with the radio access network. Examples include personal communication service (PCS) phones, cordless phones, session initiated protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), and other devices. Wireless terminal equipment can also be referred to as a system, subscriber unit, subscriber station, mobile station, mobile station, remote station, access point, remote terminal, access terminal, user terminal, user agent, or user device, but is not limited to these terms in the embodiments of this application.

[0164] The network device involved in this application embodiment can be a base station, which may include multiple cells. Depending on the specific application, a base station may also be called an access point, or it may refer to a device in the access network that communicates with a wireless terminal device through one or more sectors on the air interface, or other names. The network device can be used to convert received air frames to and from Internet Protocol (IP) packets, and act as a router between the wireless terminal device and the rest of the access network, where the rest of the access network may include an Internet Protocol (IP) communication network. The network device can also coordinate the attribute management of the air interface. For example, the network equipment involved in the embodiments of this application can be a base transceiver station (BTS) in a global system for mobile communications (GSM) or code division multiple access (CDMA), or a network equipment (NodeB) in wide-band code division multiple access (WCDMA), or an evolved network device (eNB or e-NodeB) in a long term evolution (LTE) system, a 5G base station in a next generation system, or a home evolved node B (HeNB), relay node, femto, pico, etc., and is not limited in the embodiments of this application.

[0165] The various embodiments of this application will now be described in detail with reference to the accompanying drawings. It should be noted that the order in which the embodiments are presented in this application represents only a chronological order and does not represent the superiority or inferiority of the technical solutions provided by the embodiments.

[0166] This application proposes a scheduling request (SR) resource determination scheme. When a physical resource (e.g., a cell or transmission point (TRP)) experiences beam failure (i.e., transmission failure), the terminal can select a suitable SR resource and further select the corresponding spatial relationship (i.e., the transmission filter parameters used when sending LRR on the SR resource, indicating the direction of the transmission beam). The LRR (Link Recovery Request) is then sent to a cell or TRP without failure, thereby increasing the transmission reliability of LRR and reducing the latency of transmission failure recovery.

[0167] Specifically, in this embodiment of the application, the terminal determines the SR resources and spatial relationship parameters on the SR resources for the cell or TRP where beam failure has occurred, based on the quantity or spatial relationship of SR resources configured in the network device, and one or a combination of the following parameters, and sends LRR on the determined SR resources:

[0168] The BFR level of failed cells or TRPs, the number of Beam Failure Detection (BFD) reference signals (RS), the relationship between BFD RS and SR resources, the higher-layer parameters of the control resource set (CORESET, a set of physical resources, i.e., a specific area on the NR downlink resource grid), and the relationship between CORESET subset and SR resources.

[0169] In this embodiment of the application, beam failure refers to transmission failure.

[0170] Specifically:

[0171] There are several ways for a terminal to determine SR resources:

[0172] Method 1: Establish an association between SR resources and BFR levels, and further, establish an association between SR resources and TRP indexes. The terminal determines the corresponding SR resources based on the determined BFR level. The BFR level can be either a first level or a second level. Alternatively, two levels can be pre-configured for the BFR level: a first level and a second level. The first level could be, for example, the TRP level, and the second level could be, for example, the cell level.

[0173] Step 1: The network side pre-configures multiple SR resources for a cell group, some of which are used for cell-level BFR reporting and others are used for TRP-level BFR reporting.

[0174] For example, a network device configures N (in practice, this may only apply to the case where N=3) SR resources (N=1, 2, 3, ... etc.) for a cell group, where N1 (N1=1) SR resources are used for cell-level BFR reporting, and N2 (N2=2) SR resources are used for TRP-level BFR reporting; N=N1+N2;

[0175] Step 2: When a beam failure occurs in a cell or TRP, the terminal determines the BFR level according to the rules configured or predefined on the network device side:

[0176] On the network device side, the BFR level can be configured for a specific cell as a cell-level BFR (i.e., level 2 BFR), a TRP-level BFR (i.e., level 1 BFR), or a combination of both. For example, the higher-layer parameter `BFR_level` can be configured in the cell configuration, the cell's internal BWP (BWP-UplinkCommon or BWP-UplinkDedicated), or the BFR-related configuration (BeamFailureRecoveryConfig or BeamFailureRecoverySCellConfig) to represent the BFR level. Its value can be `Cell_specific`, `TRP_specific`, or both. For example, the following two configurations indicate that a cell (or CC) can only be configured with one BFR level:

[0177] BFR_level CHOICE{

[0178] Cell_specific NULL

[0179] TRP_specific NULL

[0180] }

[0181] or

[0182] BFR_level ENUMERATED{Cell_specific, TRP_specific}

[0183] For example, the following configuration indicates that a cell (or CC) can be configured with one or two BFR levels:

[0184] BFR_level SEQUENCE{

[0185] Cell_specific NULL

[0186] TRP_specific NULL

[0187] }

[0188] For example, more detailed parameters can be configured under the Cell_specific or TRP_specific parameters, such as the number of BFD RS sets and the BFD RSs contained in each BFD RS set, for example:

[0189] Cell_specific SEQUENCE(SIZE(1..2))OF BFD_RS_list, or

[0190] Cell-specific BFD_RS_list, or

[0191] TRP_specific SEQUENCE(SIZE(1..2))OF BFD_RS_list, or TRP_specific BFD_RS_list.

[0192] BFD_RS_list is the higher-level parameter corresponding to the BFD RS set, and can also be a higher-level parameter in the existing protocol such as failureDetectionResourcesToAddModList or RadioLinkMonitoringRS.

[0193] Through explicit configuration on the network-side equipment, the terminal can determine the BFR level of a specific cell. Based on the BFR level configured on the network-side equipment, the terminal can also determine the number of BFD RS sets.

[0194] If the number of BFD RS sets is not explicitly configured, the terminal can determine that when the network-side device configures the terminal with a second-level BFR (cell-level BFR, corresponding to the parameter Cell_specific), the number of BFD RS sets is 1; and when the network-side device configures the terminal with a first-level BFR (TRP-level BFR, corresponding to the parameter TRP_specific), the number of BFD RS sets is 2. Even if the network side does not explicitly configure BFD RS sets, the terminal can determine the number of BFD RS sets based on the BFR level-related configuration, and thus determine the BFD RSs. For example, the terminal can determine the BFD RSs included in each BFD RS set based on the number of BFD RS sets and / or the CORESET-related higher-layer parameters (CORESETPoolIndex). For example, if the number of BFD RS sets is 1, the terminal determines that the BFD RS set includes the reference signal index in the TCI state of the CORESET containing the PDCCH to be monitored; if the number of BFD RS sets is 2, the terminal determines that the first BFD RS set (BFD RS set 0 or the BFD RS set with a lower index value in the cell) includes the reference signal index in the TCI state of the CORESET containing the PDCCH to be monitored in the CORESET with a CORESETPoolIndex value of 0; the terminal determines that the second BFD RS set (BFD RS set 1 or the BFD RS set with a higher index value in the cell) includes the reference signal index in the TCI state of the CORESET containing the PDCCH to be monitored in the CORESET with a CORESETPoolIndex value of 1. If the CORESET with a CORESETPoolIndex value of 0 or 1 in a certain time slot or a certain time unit does not contain the PDCCH to be monitored (i.e., there is no search space set to be monitored), then the corresponding BFD RS set is empty, that is, there is no corresponding BFD RS set.

[0195] If BFR is configured at the cell and TRP levels, the terminal can further determine the BFR level of the cell during a failure based on predefined rules or dynamic indications from the network device side.

[0196] The predefined rule can be to determine the BFR level based on the number of BFD RS sets. When a cell is configured or activated with one BFD RS set, it means that the cell is performing cell-level BFR; when a cell is configured or activated with two BFD RS sets, it means that the cell is performing TRP-level BFR.

[0197] The BFR level is determined according to predefined rules. For example, the BFR level is determined based on the number of BFD RS sets. When a cell has configured or activated one BFD RS set, it indicates that the cell is performing cell-level BFR; when a cell has configured or activated two BFD RS sets, it indicates that the cell is performing TRP-level BFR.

[0198] Step 3: The terminal determines the SR resources based on the determined BFR level. If the BFR level is at the cell level, the terminal can directly determine the corresponding SR resources; if the BFR level is at the TRP level, the terminal determines the corresponding SR resources based on the TRP index (i.e., a set of physical resource indices, such as the index of the BFD RS set or the index of the New Candidate Beam Set (NBI) set, the BFR procedure index, the value of the Control Resource Set Group Index (CORESETPoolIndex), the CORESET subset index, etc.). The CORESETPoolIndex can have one value, two values, or it may not have a value configured for CORESETPoolIndex, i.e., the value is 0.

[0199] The terminal determines which SR resource to use to send the LRR based on predefined rules. The predefined rules can be at least one of the following:

[0200] In each cell, the value of the BFD RS set, or NBI set, or BFR procedure, or CORESET subset, or CORESETPoolIndex with index k (k = 0 or 1) is associated with the SR resource with index k in the SR resource used for TRP level. That is, when a failure occurs, the SR resource with index k is selected to send LRR.

[0201] When all cells' BFD RS set, NBI set, or BFR process are uniformly numbered, SR resources can be determined according to predefined formulas. For example, the corresponding SR resources can be determined by taking the modulo value of N2 based on the index of the BFD RS set, the index of the NBI set, or the index of the BFR process.

[0202] Method 2: Configure the association between SR resources and higher-layer parameter lists in network devices. These higher-layer parameter lists include physical resource tables or BFR tables (BFR_list). The physical resource tables, such as TRP tables (TRP_list) or sets of cells or TRPs with similar spatial relationships, or BFR tables (BFR_list), are used to represent sets of cells or TRPs with similar BFR characteristics. Establish the association between the TRP_list or BFR_list and the SR resources.

[0203] Step 1: The network device configures N SR resources (N=1,2,3,... etc.) and K TRP_list or BFR_list for a cell group, with each TRP_list or BFR_list associated with an SR resource.

[0204] For example, each TRP_list contains a set of cells or TRPs with similar TCI states or spatial relationships.

[0205] TRP_list1: CC index p, CC index q, CC index r TRP 1, CC index s TRP 1...

[0206] TRP_list2: CC index o, CC index r TRP 2, CC index s TRP 2…

[0207] Each cell or index can only appear in one TRP_list.

[0208] For example, each BFR_list contains a set of BFR procedures corresponding to cells or TRPs with similar TCI states or spatial relationships (BFR procedures can be globally numbered within the cell group).

[0209] BFR_list1: BFR procedure a, b, c, d……

[0210] BFR_list2: BFR procedure x, y, z……

[0211] Each BFR procedure can only appear in one BFR_list.

[0212] Step 2: When the terminal detects BFR, it determines the TRP_list or BFR_list where the cell or TRP or BFR process index is located based on the BFR process in which it is in the current BFR process, BFD RS set index, CORESET higher layer parameter CORESETPoolIndex, CORESET subset index, etc.

[0213] Step 3: The terminal determines the SR resource associated with its list based on the determined cell, TRP, or BFR procedure index, and sends an LRR on the determined SR resource.

[0214] Method 3: Establish the association between SR resources and BFD RS set. The difference from Method 1 is that it does not determine the BFR level.

[0215] Step 1: The network device configures an associated SR resource for each BFD RS set, and the number of associated SR resources for all BFD RS sets in a cell group does not exceed N.

[0216] Step 2: When the terminal detects that the measured values ​​of all RSs in a BFD RS set are below a certain threshold, the terminal sends an LRR on the SR resource associated with that BFD RS set.

[0217] Method 4: Establish an association between SR resources and the index of the parameter CORESETPoolIndex or the CORESET subset configured at a higher level. The difference from Method 1 is that it does not determine the BFR level.

[0218] Step 1: The network device configures N SR resources (N=1,2,3,... etc.) for a cell group, where SR resource i is used for beam failure corresponding to CORESET group i.

[0219] Step 2: The terminal determines the associated SR resource based on the CORESETPoolIndex value or CORESET subset index of the CORESET group where beam failure occurred, and sends LRR on this resource.

[0220] For example, the SR resource i determined by the terminal is used for the CORESET group i where the transmission failure occurred; where,

[0221] A CORESET with a CORESETPoolIndex value of 0 or no CORESETPoolIndex configured is CORESET group 0; a CORESET with a CORESETPoolIndex value of 1 is CORESET group 1.

[0222] Alternatively, a CORESET with a CORESETPoolIndex value of 0 or no CORESETPoolIndex configured is CORESET group 0; a CORESET with a CORESETPoolIndex value of 1 is CORESET group 1; and a group with CORESETPoolIndex values ​​of 0 and 1 is CORESET group 2.

[0223] Alternatively, a CORESET with a CORESETPoolIndex value of 0 is CORESET group 0, a CORESET with a CORESETPoolIndex value of 1 is CORESET group 1, and a CORESET without a configured CORESETPoolIndex is CORESET group 2.

[0224] Alternatively, a CORESET with a CORESETPoolIndex value of 0 is CORESET group 0, a CORESET with a CORESETPoolIndex value of 1 is CORESET group 1, and a CORESET with a CORESETPoolIndex value of 2 is CORESET group 2.

[0225] Alternatively, the kth CORESET subset configured in the high-level parameter settings can be CORESET group k.

[0226] Optionally, the method provided in this application embodiment may further include the step of: the terminal determining the spatial relationship of SR resources.

[0227] Specifically, when the SR resources determined for physical resources have multiple active spatial relationships, a Link Recovery Request (LRR) is sent from the spatial relationships associated with the physical resource index that have not experienced transmission failure, selected from the multiple active spatial relationships. The physical resource index includes one or more of the following indices: the index of the Beam Failure Detection Reference Signal Set (BFD RS set) or the index of the New Candidate Beam Set (NBI) set, the Beam Failure Recovery (BFR) process index, the value of the Control Resource Set Group Index (CORESETPoolIndex), and the index of the Control Resource Set Subset (CORESET subset).

[0228] For example, if each SR resource has two or more active spatial relationships, the spatial relationships on the selected SR resources need to be further determined.

[0229] For example, when the number of cells or TRPs selected for the same SR resource is greater than 1, the terminal determines the spatial relationship based on the TRP with the smaller cell index or TRP index among the TRPs that have experienced beam failure. For example, it selects the spatial relationship associated with the TRP that has not experienced beam failure (e.g., two active spatial relationships are associated with TRP1 and TRP2 respectively).

[0230] The following are descriptions of several specific embodiments.

[0231] Example 1:

[0232] Multiple SR resources can be configured for the terminal, each used for different levels of BFR reporting. The specific steps are as follows:

[0233] Step 1: The network device configures N SR resources (N=1,2,3,... etc.) for a cell group, of which N1 SR resources are used for cell-level BFR reporting and N2 SR resources are used for TRP-level BFR reporting;

[0234] Among the N SR resources configured by the network device for a cell group, which SR resource can be used for BFR reporting at the cell level or TRP level can be configured by the network device or determined by the terminal according to predefined rules.

[0235] For example, when N=3, SR resource 1 is configured for cell-level BFR reporting, and SR resources 0 and 2 are configured for TRP-level BFR reporting. A higher-layer parameter can be included in the SR resource configuration to indicate the BFR level corresponding to the respective SR resource. As another example, when N=2, the network device can configure SR resource 0 for cell-level BFR reporting and SR resource 1 for TRP-level BFR reporting.

[0236] When N=3, SR resource 0 can be used for cell-level BFR reporting, and SR resources 1 and 2 can be used for TRP-level BFR reporting, according to predefined rules. When N=2, SR resource 0 can be used for cell-level BFR reporting, and SR resource 1 can be used for TRP-level BFR reporting, according to predefined rules.

[0237] For example, taking N1=1 and N2=2 as an example, Figure 1 As shown, suppose there are 4 cells in the cell group, namely SCell (Secondary Cell) A, B, C and D. This explanation only uses SCell as an example, but one of the SCells can also be replaced with PCell (Primary Cell). Figure 1 In this configuration, SCells A and C implement the TRP-level beam failure recovery mechanism, while SCells B and D implement the cell-level beam failure recovery mechanism. SR resource 0 is used for cell-level beam failure recovery, and SR resources 1 and 2 are used for TRP-level beam failure recovery, which is equivalent to establishing a correlation between SR resources and the BFR level.

[0238] Step 2: When a beam failure occurs in a cell or TRP, the terminal determines the BFR level of the cell based on the BFR level configured on the network device side or according to predefined rules.

[0239] When a beam failure occurs, the terminal can determine the BFR level using at least one of the following methods:

[0240] On the network device side, the BFR level for a given cell can be configured as cell-level BFR, TRP-level BFR, or a combination of both. For example, this can be configured within the serving cell's related configuration (higher-layer parameter ServingCellConfig) or the BWP (BandWidth Part) configuration (higher-layer parameter BWP-DownlinkDedicated or its sub-parameter RadioLinkMonitoringConfig). If both cell-level and TRP-level BFR are configured, the terminal can further determine the BFR level for a particular cell in the event of a failure based on predefined rules or dynamic indications from the network device side. Predefined rules can be based on the number of BFD RSsets; when a cell has one configured or activated BFD RS, it indicates that the cell is performing cell-level BFR; when two BFD RSs are configured or activated, it indicates that the cell is performing TRP-level BFR.

[0241] The BFR level is determined according to predefined rules. For example, the BFR level is determined based on the number of BFD RS sets. When a cell has one BFD RS configured or activated, it indicates that the cell is performing cell-level BFR; when a cell has two BFD RS configured or activated, it indicates that the cell is performing TRP-level BFR.

[0242] Through this step, the terminal can determine the BFR level occurring in each cell.

[0243] Step 3: The terminal determines the SR resources based on the determined BFR level. If the BFR level is at the cell level, the terminal can directly determine the corresponding SR resources; if the BFR level is at the TRP level, the terminal determines the corresponding SR resources based on the TRP index (index of BFD RS set or NBI set, BFR procedure index, value of CORESETPoolIndex, index of CORESET subset, etc.).

[0244] If the BFR level is at the cell level, then the cell will only correspond to one SR resource, meaning no further selection is required. If the BFR level is at the TRP level, then it may correspond to up to two SR resources. When the number of SR resources used for the TRP level is two, it is necessary to further determine which SR resource to use to send LRR. In this embodiment, the terminal can determine the corresponding SR resource based on the TRP index (the index of the BFD RS set or the index of the NBI set, the BFR procedure index, the value of CORESETPoolIndex, the index of CORESETsubset, etc.) through at least one of the following predefined rules:

[0245] In each cell, the BFD RS set, or NBI set, or BFR procedure, or CORESET subset index, or CORESETPoolIndex with a value of k (k=0 or 1) is associated with the SR resource with the k-th index in the TRP-level SR resources. That is, in the event of a failure, the SR resource with the k-th index is selected to send the LRR. The k-th index mentioned above refers to the k-th index determined by sorting the index values ​​from smallest to largest. When N=3, SR resources 1 and 2 are used for TRP-level BFR reporting, and the k-th index in the TRP-level SR resources refers to the k-th index in SR resources 1 and 2.

[0246] When the indices of all cells' BFD RS set, NBI set, BFR procedure, or CORESET subset are uniformly numbered, SR resources can be determined according to predefined formulas. For example, if the modulo result of the BFD RS set index, NBI set index, BFR procedure index, or CORESET subset index is 0, the SR resource with the lowest index among the SR resources used for TRP level is selected to send LRR; if the modulo result is 1, the SR resource with the highest index among the SR resources used for TRP level is selected to send LRR. The reverse is also possible; for example, if the modulo result of the BFD RS set, NBI set index, BFR procedure index, or CORESET subset index is 1, the SR resource with the lowest index among the SR resources used for TRP level is selected to send LRR; if the modulo result is 0, the SR resource with the highest index among the SR resources used for TRP level is selected to send LRR.

[0247] For example, SR resource 1 is associated with TRPs of index 1 in each cell (e.g., TRP1 in SCell A and SCell C), and SR resource 2 is associated with TRPs of index 2 in each cell (e.g., TRP2 in SCell A and SCell C). This method is applicable to scenarios where TRP1 in each cell is deployed together, and TRP2 is deployed together (and TRP2 and TRP1 are physically separated). Thus, if TRP1 in SCell A fails, TRP1 in SCell C also has a certain probability of failing. The spatial relationship of the SR resources can be set to point towards the direction of TRP2 in each cell. This way, when TRP1 in SCell A and SCell C fails, LRR can be sent to the TRP2 that did not fail, increasing the transmission reliability of LRR and reducing the latency of transmission failure recovery. Here, the TRP2 that did not fail can be the TRP of the cell where the SR resource resides. For example, in a CA (Carrier Aggregation) scenario, a PCell or PSCell can be configured with SR resources (i.e., PUCCH, Physical Uplink Control Channel), and TRP2 can be the TRP2 of the PCell. In a DC (Dual Connectivity) scenario, TRP2 can be the TRP2 on either the PCell or the PSCell (Primary Secondary Cell Group Cell), depending on which PUCCH the network device configures the SR resources on.

[0248] Optionally, this embodiment may further include the following steps:

[0249] Step 4: The terminal determines the spatial relationship of the selected SR resources.

[0250] If each SR resource has two or more active spatial relationships, the spatial relationships on the selected SR resources need to be further determined. For example, when the number of cells or TRPs selecting the same SR resource is greater than one, the terminal determines the spatial relationship based on the TRP with the smaller cell index or TRP index among the TRPs that failed, such as selecting the spatial relationship associated with the non-failed TRP (e.g., two active spatial relationships are associated with TRP1 and TRP2 respectively).

[0251] Specifically, the network device can configure two spatial relationships on the SR resource, corresponding to TRP index 1 and TRP index 2 respectively. The TRP index can be an index of a BFD RS set, an index of an NBI set, a BFR process index, a value of CORESETPoolIndex, an index of a CORESET subset, etc. When the terminal determines that a BFR has occurred in the TRP related to TRP index 1, it uses the spatial relationship corresponding to TRP index 2 to send LRR; similarly, when the terminal determines that a BFR has occurred in the TRP related to TRP index 2, it uses the spatial relationship corresponding to TRP index 1 to send LRR.

[0252] It should be noted that Step 4 applies to all embodiments in this application, and this optional step can be performed after each SR resource determination method.

[0253] Example 2:

[0254] To ensure that a TRP or cell can select appropriate SR resources (essentially suitable spatial relationships) when beam failure recovery occurs, LRR can be sent to cells or TRPs that have not experienced beam failure. The network device can also explicitly configure higher-layer parameters TRP_list or BFR_list to represent a set of cells or TRPs with similar BFR characteristics or similar spatial relationships, establishing an association between TRP_list or BFR_list and SR resources. When BFR occurs, the terminal can determine the list containing the failed TRP based on the index of the failed TRP (index of the BFD RS set or NBI set, BFR process index, or the value of CORESETPoolIndex) or the cell index, and then select the corresponding SR resource associated with that list to send the LRR. Since the list is configured or indicated to the terminal by the network device, the network device can configure appropriate SR resources for the terminal according to the actual deployment, ensuring that the terminal sends the LRR to cells or TRPs that have not experienced beam failure.

[0255] Step 1: The network device configures N SR resources (N=1,2,3,... etc.) and K TRP_list or BFR_list for a cell group, with each TRP_list or BFR_list associated with an SR resource.

[0256] For example, each TRP_list contains a set of cells or TRPs with similar TCI states or spatial relationships.

[0257] TRP_list1: Component Carrier (CC) index p, CC index q, CC index rTRP 1, CC index sTRP 1...

[0258] TRP_list2: CC index o, CC index r TRP 2, CC index s TRP 2…

[0259] Each cell or index can only appear in one TRP_list.

[0260] For example, each BFR_list contains a set of BFR procedures corresponding to cells or TRPs with similar TCI states or spatial relationships (BFR procedures can be globally numbered within the cell group).

[0261] BFR_list1: BFR procedure (procedure) a, b, c, d...

[0262] BFR_list2: BFR procedure x, y, z……

[0263] Each BFR procedure can only appear in one BFR_list.

[0264] Besides being configured using RRC signaling, TRP_list and BFR_list can also be further activated or updated using MAC-CE or DCI signaling to adapt to real-time changes in transmission conditions. For example, if a cell is configured with two TRPs (TRP1 and TRP2), and only one TRP is used for transmission at a time (e.g., Dynamic Point Selection, DPS) for cell-level BFR, then it is configured in the TRP_list as a cell. For example, if CC index k is used, then when the cell uses TRP1 for communication, it can appear in TRP_list1 (i.e., CC index k appears in TRP_list1), and when using TRP2 for communication, it can appear in TRP_list2 (i.e., CC index k appears in TRP_list1). When further activated or updated using Media Access Control Unit (MAC-CE) or DCI signaling, it is necessary to ensure that after the update or activation, each cell or TRP can only appear in one list. However, in RRC configuration, a cell or TRP can appear in two lists. Furthermore, a cell can perform different levels of BFR at different times. For example, it can perform cell-level BFR for one period and TRP-level BFR for another. Therefore, before updating using MAC-CE or DCI signaling, the indices corresponding to TRP-level and cell-level BFR can both appear on the list. For example, CC index k appears on list 1, CC index k TRP 1 appears on list 2, and CC index k TRP 2 appears on list 3. When MAC-CE or DCI signaling is activated or updated, it can be updated either by list (e.g., updating list 1 to list 2) or by a single cell on the list (e.g., updating CC index k on list 1 to CC index k TRP 2).

[0265] Step 2: When the terminal detects BFR, it determines the TRP_list or BFR_list where the cell or TRP or BFR process index is located based on the BFR process in which it is in the current BFR process, BFD RS set index, CORESET higher layer parameter CORESETPoolIndex, CORESET subset index, etc.

[0266] Step 3: The terminal determines the SR resource associated with its list based on the determined cell or TRP or BFR procedure index, and sends LRR on the determined SR resource.

[0267] Example 3:

[0268] It can also establish an association between SR resources and BFD RS sets. When a terminal detects that a BFD RS set has failed, it can directly select the corresponding SR resource to transmit LRR.

[0269] Step 1: The network device configures an associated SR resource for each BFD RS set, and the number of associated SR resources for all BFD RS sets in a cell group does not exceed N.

[0270] Specifically, an SR resource-related identifier, such as a scheduling request identifier (SchedulingRequestId), is added to the configuration of each BFD RS set. For example, a cell contains 4 cells, each cell has 2 BFD RS sets, for a total of 8 BFD RS sets. Each set is configured with an associated SchedulingRequestId. For instance, when N=3, the two BFD RS sets of cell 1 are configured with SchedulingRequestIds of 0 and 1, the two BFD RS sets of cell 2 are configured with 1 and 2, the two BFD RS sets of cell 3 are configured with 0 and 2, and the two BFD RS sets of cell 4 are configured with 1 and 2. Therefore, the SchedulingRequestId values ​​configured for all cells are values ​​from the set {0, 1, 2}.

[0271] For example, when N=2, cell 1 and cell 2 each have one BFD RS set, and the ScheduledRequestId configured in these two cells are 0 and 1 respectively. Cells 3 and 4 each have two BFD RS sets, and the ScheduledRequestId configured in these two cells are 0 and 1 respectively. Therefore, it can be seen that the ScheduledRequestId configured in all cells takes a value from the set {0, 1}.

[0272] In this embodiment, the index of the BFD RS set can be numbered within a cell or globally within a cell group. This invention does not limit this. Regardless of the numbering method, it is only necessary to add the ScheduleRequestId configuration to the BFDRS set configuration.

[0273] Step 2: When the terminal detects that the measured values ​​of all RSs in a BFD RS set are below a certain threshold, it considers that the cell or TRP corresponding to the BFD RS set has experienced beam failure, and the terminal sends LRR on the SR resource associated with the BFD RS set.

[0274] For example, if the measured values ​​of RS in the second BFD RS set in cell 3 are all below the threshold, the terminal will send LRR to the base station on the SR resource with SchedulingRequestId of 2.

[0275] In this embodiment, each SR resource is configured with a spatial relationship, for example, each SR resource's spatial relationship points to a TRP or a cell. The network device can configure a suitable SR resource for each BFD RS set according to the deployment, so that LRR can be sent to a suitable cell when beam failure occurs. For example, when N=2, the spatial relationships of the two SR resources (SchedulingRequestId configured as 0 and 1) point to TRP2 and TRP1 respectively. The network device can associate TRP1 of cell 1 with SR resource 0, and TRP2 with SR resource 1. Thus, when TRP1 fails, the terminal can use SR resource 0 to send LRR, i.e., send the LRR to TRP2 (i.e., a cell without failure, with better channel quality), which can increase the transmission reliability of LRR and reduce the latency of transmission failure recovery.

[0276] Specifically, this embodiment applies to cases where the BFD RS set is explicitly configured during the BFR process.

[0277] Example 4:

[0278] The association between BFD RS sets and SR resources can also be established through predefined methods. For example, the network device can configure N SR resources for a cell group (e.g., SchedulingRequestId values ​​are 0, 1, ..., N-1), and the association between BFD RS sets and SR resources can be established through the following predefined rules:

[0279] When N=2, if the index of the BFD RS set is numbered in each cell, each cell has at most K=2 BFD RS sets. The BFD RS set can be explicitly configured on the network device side or determined by the terminal according to predefined rules. This application embodiment does not impose any restrictions on this. In either case, the value of the BFD RS set is 0 or 1. Then the terminal can determine that the BFD RS set index k (k=0 or 1) and the SR resource ScheduledRequestId k are associated. When the terminal detects that the measurement values ​​of all RSs in BFD RS set k are below the threshold, the terminal will send LRR to the base station on the SR resource with ScheduledRequestId k. In particular, when a cell performs TRP-level BFR, the number of BFD RS sets is 2 (index value is 0 or 1), and when a cell performs cell-level BFR, the number of BFD RS sets is 1 (index value is 0). The above predefined rules are applicable to both cell-level BFR and TRP-level BFR.

[0280] If the index of the BFD RS set is numbered within the cell group, the association between the BFD RS set and the SR resource can also be established by modulo operation. Assuming the index value of the BFD RS set is P, then when it fails, the SR resource sent for LRR is mod(P, N).

[0281] When N=3, if the index of the BFD RS set is globally numbered within the cell group, the method is similar to that when N=2. That is, assuming the index value of the BFD RS set is P, when it fails, the SR resource for sending LRR is mod(P, N).

[0282] If the index of the BFD RS set is numbered in each cell, and each cell has at most K = 2 BFD RS sets, the BFD RS set can be explicitly configured on the network device side or determined by the terminal according to predefined rules. This embodiment does not impose any restrictions on this. In either case, the value of the BFD RS set is either 0 or 1. The terminal first determines the number of BFD RS sets in the cell. If the number is 1, it is associated with one SR (e.g., SR resource 0); if the number is 2, it is associated with two other SR resources (e.g., SR resources 1 and 2). For a cell configured with 2 BFD RS sets, it can be determined that the BFD RS set index k (k = 0 or 1) and the SR resource SchedulingRequestId n (n is 1 or 2) are associated. When the terminal detects that the measured values ​​of all RSs in BFD RS set k are below a threshold, the terminal will send an LRR to the base station on the SR resource with SchedulingRequestId n.

[0283] In this way, the network device can configure the BFD RS set index value to ensure that it can select the appropriate SR resource to send LRR when it fails, that is, the spatial relationship points to the TRP or cell that has not failed.

[0284] Specifically, this embodiment applies to both explicit configuration and implicit determination of the BFD RS set during the BFR process. In the implicit determination of the BFD RS set, the terminal can also determine up to two BFD RS sets for each cell (or BWP) based on the configuration of CORESET (either the explicitly configured higher-layer parameter CORESETPoolIndex or the configured CORESET subset).

[0285] Example 5:

[0286] The association between CORESET groups and SR resources can also be established in a predefined way. For example, a CORESET group can be an implicit group determined by the higher-level parameter CORESETPoolIndex, or it can be a CORESET subset configured on the network device side. Each CORESET subset contains the index of one or more CORESETs.

[0287] Step 1: The network device configures N SR resources (N=1,2,3,... etc.) for a cell group, where SR resource i is used for beam failure corresponding to CORESET group i.

[0288] The CORESET group is an implicit group determined according to the CORESET higher-layer parameter CORESETPoolIndex, or a group explicitly configured by higher-layer signaling. For example, a CORESET with a CORESETPoolIndex value of 0 or no CORESETPoolIndex configured is CORESET group 0, and a CORESET with a CORESETPoolIndex value of 1 is group 1.

[0289] Alternatively, a CORESET with a CORESETPoolIndex value of 0 or no CORESETPoolIndex configured is group 0; a CORESET with a CORESETPoolIndex value of 1 is group 1; and groups with CORESETPoolIndex values ​​of 0 and 1 are group 2 (for example, this configuration is applicable to CORESET configurations when PDCCH uses SFN (Single Frequency Network) transmission).

[0290] Alternatively, a CORESET with a CORESETPoolIndex value of 0 is group 0, a CORESET with a CORESETPoolIndex value of 1 is group 1, and a CORESET without a configured CORESETPoolIndex is group 2. The group numbers corresponding to the above three types of CORESETs can also interact with each other, and this application embodiment does not limit this.

[0291] Alternatively, a CORESET with a CORESETPoolIndex value of 0 is group 0, a CORESET with a CORESETPoolIndex value of 1 is group 1, and a CORESET with a CORESETPoolIndex value of 2 is group 2 (for example, this configuration is applicable to CORESET configuration when PDCCH uses SFN transmission).

[0292] Alternatively, the k-th CORESET subset configured in the higher-level parameters is CORESET group k. The network device configures one SR resource for each CORESET group. The number of CORESET groups is at most 3, and the number of SR resources is also at most 3.

[0293] Step 2: The terminal determines the associated SR resource based on the CORESETPoolIndex value or CORESET subset index of the CORESET group where beam failure occurred, and sends LRR on this resource.

[0294] In particular, if there are multiple CORESET groups where beam failure occurs, such as two, the terminal will select the SR resources corresponding to these two CORESET groups to send LRR.

[0295] In other embodiments of this application, if more than one list has a BFR situation, or more than one TRP or cell has a BFR situation, the terminal will send LRR on all other corresponding SR resources.

[0296] This embodiment applies to cases where the BFD RS set is implicitly determined. When the BFD RS set is implicitly determined, the terminal can directly determine the associated CORESET group based on the RS or BFD RS set that caused the failure, and then select the appropriate SR resource to send LRR.

[0297] Example 6:

[0298] SR resources can also be configured for each cell separately. Each SR resource corresponds to the resource for sending LRR when a cell-level BFR or TRP-level BFR occurs. The total number of SR resources configured for all cells does not exceed N.

[0299] Alternatively, the SR resources of each cell can represent the LRR transmission resources when the RS in the first BFD RS set fails and the LRR transmission resources when the RS in the second BFD RS set fails, respectively; when an SR resource is configured, it represents the LRR transmission resources used when the RS in the first BFD RS set fails.

[0300] Alternatively, each cell's SR resources can correspond to the first TRP index and the second TRP index respectively. When an SR resource is configured, it is used for the first TRP index.

[0301] One advantage of directly configuring SR resources for each cell is its adaptability to various network device deployments. Especially for cells implementing cell-level BFR, multiple TRPs can essentially be configured, with one TRP selected to operate for a period of time. This allows the network device to configure LRR transmission resources in case of cell failure based on the deployment configuration.

[0302] Similar to other embodiments, the terminal can first determine the failed BFD RS set or TRP index, and then determine the LRR transmission resources based on the association between the BFDRS set or TRP index and the SR resources. According to the methods in embodiments 1-6, if more than one TRP or cell has failed transmission, and the number of determined SR resources is greater than one, the terminal performs LRR transmission on all of the more than one SR resources. In embodiment 7, if more than one TRP or cell has failed transmission, the terminal will first determine one cell (CC) or one TRP, and then perform LRR transmission on the SR resources corresponding to the selected cell or TRP.

[0303] Example 7:

[0304] If multiple TRPs in multiple cells experience beamout or transmission failure, for example, if CC1 TRP2, CC2 TRP1, and CC3 TRP2 all experience beamout or transmission failure, a default or predefined TRP index (or BFD RS set index, etc.) is first determined. Then, the SR resource corresponding to this default or predefined TRP index is selected to send the LRR. The process of determining the corresponding SR resource based on the predefined TRP index is described in Examples 1-6. A default or predefined TRP index is determined using one of the following methods:

[0305] Method 1: First, select the physical resource that has experienced beam failure by using the CC index in ascending order, and then select the TRP index in ascending order. Then select the TRP2 in CC1 that has experienced beam failure, and then select the SR resource corresponding to TRP2 as the final determined SR resource for LRR transmission.

[0306] Method 2: First, select the physical resource where beam failure occurred by using the TRP index in ascending order, and then select the CC index in ascending order. Then select TRP1 in CC2, and then select the SR resource corresponding to TRP1 as the final determined SR resource for LRR transmission.

[0307] Method 3: If the TRP index has a global number, the SR resource corresponding to the TRP with the largest or smallest TRP index can be selected as the final determined SR resource. The global number refers to the unified and continuous numbering of all TRPs (or BFD RS sets) within the cell group. For example, the TRP or BFD RS set index in CC1 is 0 and 1, the TRP or BFD RS set index in CC2 is 2, the TRP or BFD RS set index in CC3 is 3 and 4, and so on.

[0308] Optionally, the TRP index can be a BFD RS set index, a CORESET subset or group index, or a value of the CORESET high-level parameter CORESETPoolIndex, a BFR process index, etc.

[0309] In summary, in this embodiment, the terminal selects a suitable SR resource for the failed cell or TRP when a BFR occurs, based on the network device configuration or the predefined association between SR resources and TRP or cell-related parameters. When a BFR occurs, the terminal can select a suitable SR resource to send an LRR for the failed cell or TRP, that is, send the LRR to a cell or TRP that has not failed, thereby increasing the transmission reliability of the LRR and reducing the latency of transmission failure recovery.

[0310] On the terminal side, see Figure 2 This application provides a resource determination method, including:

[0311] S101. Identify the physical resource where the transmission failure occurred;

[0312] The transmission failure may be, for example, a beam failure. In the embodiments of this application, beam failure and transmission failure are equivalent.

[0313] The physical resources mentioned are, for example, cells or transmission points (TRPs). This step, for example, determines whether a beamout has occurred in the cell or TRP.

[0314] S102. Based on the correlation between the network-side configured or predefined scheduling request (SR) resources and the relevant parameters of the physical resources, determine the SR resources for the physical resources that have experienced transmission failures.

[0315] The relevant parameters of the physical resources include, for example, the BFR level, high-level parameter list, BFD RS set, CORESETPoolIndex or CORESET subset index as described in Methods 1 to 4 and various embodiments.

[0316] This method allows the terminal to determine a more suitable SR resource for a physical resource that has experienced a transmission failure, based on the correlation between network-configured or predefined scheduling request (SR) resources and relevant parameters of physical resources. Therefore, when a BFR (Breakthrough Failure) occurs, the terminal can select a suitable SR resource to send an LRR (Learning Redirect) to the failed cell or TRP (Telematics Resource Platform), and then forward the LRR to a cell or TRP without failure. This increases the transmission reliability of the LRR and reduces the latency of transmission failure recovery.

[0317] Optionally (corresponding to Method 1 above), the SR resources are determined for the physical resources based on the pre-established correlation between SR resources and beam failure recovery (BFR) levels.

[0318] Optionally, SR resources are determined for the physical resources, specifically including:

[0319] When a set of physical resources fails to transmit, the BFR level corresponding to the physical resource is determined according to the network-side configuration or predefined rules; and the SR resource associated with the BFR level is determined for the physical resource.

[0320] For example, when a beam failure occurs in a cell, the BFR level of the cell can be determined based on the number of BFD RS sets. When a cell has configured or activated one BFD RS set, it means that the cell is performing cell-level BFR; when a cell has configured or activated two BFD RS sets, it means that the cell is performing TRP-level BFR.

[0321] Optionally, determining the SR resource associated with the BFR level for the physical resource specifically includes: if the determined BFR level is the first level, then determining the SR resource associated with the first level for the physical resource based on the pre-established association relationship between the SR resource and the first level;

[0322] If the determined BFR level is the second level, then based on the pre-established association between SR resources and the second level, the SR resources associated with the second level are determined for the physical resources.

[0323] The first level is, for example, the cell level, and the second level is, for example, the TRP level.

[0324] Optionally, based on the pre-established association between SR resources and the second level, SR resources associated with the second level are determined for the physical resource, specifically including:

[0325] Based on the association between SR resources and a set of physical resource indexes, SR resources are determined for the physical resources.

[0326] For example, if the BFR level of the physical resource currently experiencing beam failure is determined to be at the cell level, the terminal can directly determine the corresponding SR resource; if the BFR level of the physical resource currently experiencing beam failure is determined to be at the TRP level, the terminal determines the corresponding SR resource based on the TRP index (i.e., a set of physical resource indices, such as the index of the BFD RS set or the index of the New Candidate Beam Set (NBI) set, the BFR process index, the value of the Control Resource Set Group Index (CORESETPoolIndex), the CORESET subset index, etc.).

[0327] Optionally, the BFR level corresponding to the physical resource is determined according to network-side configuration or predefined rules, including at least one of the following:

[0328] 1. The terminal determines the BFR level of the cell as Level 1, Level 2, or a combination of Level 1 and Level 2 based on the configuration parameters within the cell.

[0329] For example, the terminal determines the BFR level based on the number of BFD RS sets. When the cell is configured or indicates one BFD RS set, the terminal determines the BFR level of the cell to be level one; when the cell is configured or indicates two BFD RS sets, the terminal determines the BFR level of the cell to be level two.

[0330] 2. The terminal determines the BFR level based on the number of values ​​of CORESETPoolIndex configured on the network device side;

[0331] For example, when the number of possible values ​​for CORESETPoolIndex is 0 or 1, the terminal determines that the BFR level of the cell is Level 1; when the number of possible values ​​for CORESETPoolIndex is 2, the terminal determines that the BFR level of the cell is Level 2.

[0332] 3. The terminal determines the BFR level based on the number of CORESET subsets or the number of BFR procedures configured on the network device side;

[0333] For example, when the number of CORESET subsets or the number of BFR procedures is 1, the terminal determines the BFR level of the cell to be the first level; when the number of CORESET subsets or the number of BFR procedures is 2, the terminal determines the BFR level of the cell to be the second level.

[0334] Optionally (corresponding to Method 2 above), SR resources are determined for the physical resources based on the predetermined association between SR resources and the higher-level parameter list, wherein the higher-level parameter list includes a physical resource table or a beam failure recovery (BFR) table.

[0335] It should be noted that the pre-determined parameters mentioned in the embodiments of this application may be pre-configured on the network side or determined according to predefined rules.

[0336] Optionally, SR resources are determined for the physical resources, specifically including:

[0337] When a BFR is detected, determine the physical resource where the transmission failure occurred, or the higher-level parameter list where the BFR process index is located;

[0338] Based on the determined list of high-level parameters, the corresponding SR resources are determined for the physical resources.

[0339] For example, multiple SR resources and multiple TRP_lists or BFR_lists can be configured for a cell group, with each TRP_list or BFR_list associated with an SR resource;

[0340] When a BFR is detected, the TRP_list or BFR_list containing the BFR process index is determined based on the BFR process index, and then the corresponding SR resource is determined.

[0341] Optionally (corresponding to Method 3 above), SR resources are determined for the physical resources based on the pre-determined association between SR resources and the transmission failure detection reference signal set (BFD RS set).

[0342] Optionally, SR resources are determined for the physical resources, specifically including:

[0343] When it is detected that the measured values ​​of all BFD RSs in a BFD RS set are below a preset threshold, the SR resource associated with that BFD RS set is determined for the physical resource.

[0344] Optionally (corresponding to method four above), SR resources are determined for the physical resources based on the pre-determined association between SR resources and the index of the control resource set group CORESETPoolIndex or the index of the control resource set CORESET subset configured by the higher layer.

[0345] Optionally, determining the SR resource for the physical resource (e.g., the case described in Embodiment 5 above) specifically includes:

[0346] Based on the value of the parameter CORESETPoolIndex of the CORESET group where the transmission failure occurred, or the index of the CORESET subset, the corresponding SR resource is determined for the physical resource.

[0347] Optionally, the SR resource i determined by the terminal is used for the CORESET group i where the transmission failure occurred; wherein,

[0348] A CORESET with a CORESETPoolIndex value of 0 or no CORESETPoolIndex configured is CORESET group 0; a CORESET with a CORESETPoolIndex value of 1 is CORESET group 1.

[0349] Alternatively, a CORESET with a CORESETPoolIndex value of 0 or no CORESETPoolIndex configured is CORESET group 0; a CORESET with a CORESETPoolIndex value of 1 is CORESET group 1; and a group with CORESETPoolIndex values ​​of 0 and 1 is CORESET group 2.

[0350] Alternatively, a CORESET with a CORESETPoolIndex value of 0 is CORESET group 0, a CORESET with a CORESETPoolIndex value of 1 is CORESET group 1, and a CORESET without a configured CORESETPoolIndex is CORESET group 2.

[0351] Alternatively, a CORESET with a CORESETPoolIndex value of 0 is CORESET group 0, a CORESET with a CORESETPoolIndex value of 1 is CORESET group 1, and a CORESET with a CORESETPoolIndex value of 2 is CORESET group 2.

[0352] Alternatively, the kth CORESET subset configured in the high-level parameter settings can be CORESET group k.

[0353] Optionally, SR resources are determined for the physical resources based on the association between SR resources configured on the network device side and the BFR process index.

[0354] Optionally, SR resources are determined for the physical resources, specifically including:

[0355] When a transmission failure is detected in the physical resource corresponding to a BFR process index, an SR resource associated with that BFR process index is determined for the physical resource.

[0356] Optionally, when the SR resources determined for the physical resource have multiple active spatial relationships, the method further includes:

[0357] From the multiple active spatial relationships, select the spatial relationship associated with the physical resource index that has not experienced a transmission failure and send a Link Recovery Request (LRR).

[0358] Optionally, the physical resource index includes one or more of the following indexes: the index of the beam failure detection reference signal set (BFD RS set) or the index of the NBI set, the beam failure recovery (BFR) process index, the value of the control resource set group index (CORESETPoolIndex), and the index of the control resource set subset (CORESET subset).

[0359] Optionally (corresponding to Embodiment 7 above), the physical resource that experienced transmission failure is a set of physical resources determined from one or more sets of physical resources that experienced transmission failure. In step S102, the SR resource is determined based on the determined set of physical resources.

[0360] Optionally, a set of physical resources determined from one or more sets of physical resources where transmission failures occurred, based on at least one of the following:

[0361] The carrier unit (CC) index of the physical resource where the transmission failure occurred;

[0362] Index of the physical resource where the transmission failed;

[0363] Index of the BFD RS set where a transmission failure occurred.

[0364] For example:

[0365] Method 1: First sort by CC index, then sort by TRP index, and finally select a TRP and the corresponding SR resource;

[0366] Method 2: First sort by TRP index, then sort by CC index, and finally select a TRP and the corresponding SR resource;

[0367] Method 3: If the TRP index has a global number, a TRP and its corresponding SR resource can be determined by sorting the TRP index alone.

[0368] When selecting SR resources by sorting according to the TRP index, the selection can be based on the TRP index in ascending or descending order (ascending / descending order); or, the selection can be based on the TRP priority (configured or predefined priority).

[0369] When selecting SR resources based on CC index sorting, it can be done either in ascending or descending order of CC indexes; or, based on CC priority (configured or predefined priority). Sorting by CC priority can be based on the priority configured by the network-side device, for example, configuring the priority order from highest to lowest as five CCs (i.e., cells) with CC indices of 0, 3, 4, 2, and 1; or it can be based on the priority order determined by the terminal according to predefined rules, such as PCells or PSCells having higher priority and SCells having lower priority, or CCs with smaller CC index values ​​having higher priority, etc.

[0370] The TRP index can be an index of a BFD RS set, a value of CORESETPoolIndex, an index of a configured CORESET group or subset, a BFR process index, etc. The index of the physical resource is equivalent to the TRP index. Each group of physical resources corresponds to one TRP.

[0371] On the network side, see Figure 3 This application provides a resource determination method, including:

[0372] S201. Configure the correlation between relevant parameters of SR resources and physical resources; the physical resources are cells or transmission points (TRPs) where transmission failures have occurred.

[0373] S202. The association relationship is notified to the terminal, so that the terminal determines the SR resource for the physical resource based on the association relationship.

[0374] Optionally, the relevant parameters of the physical resources specifically include:

[0375] Beam failure recovery to BFR level; or,

[0376] High-level parameter list; or,

[0377] Transmission Failure Detection Reference Signal Set (BFD RS set); or,

[0378] Control resource set group index CORESETPoolIndex or control resource set CORESET subset index.

[0379] On the terminal side, see Figure 4 This application provides a resource determination device, comprising:

[0380] Memory 620 is used to store program instructions;

[0381] Processor 600 is used to call program instructions stored in the memory and execute them according to the obtained program:

[0382] Identify the physical resource where the transmission failure occurred;

[0383] Based on the correlation between the network-side configured or predefined scheduling request (SR) resources and the relevant parameters of the physical resources, the SR resources for the physical resources that have experienced transmission failures are determined.

[0384] Optionally, the SR resources are determined for the physical resources based on the pre-established correlation between SR resources and beam failure recovery (BFR) levels.

[0385] Optionally, SR resources are determined for the physical resources, specifically including:

[0386] When a set of physical resources fails to transmit, the BFR level corresponding to the physical resource is determined according to the network-side configuration or predefined rules; and the SR resource associated with the BFR level is determined for the physical resource.

[0387] Optionally, determining the SR resource associated with the BFR level for the physical resource specifically includes: if the determined BFR level is the first level, then determining the SR resource associated with the first level for the physical resource based on the pre-established association relationship between the SR resource and the first level;

[0388] If the determined BFR level is the second level, then based on the pre-established association between SR resources and the second level, the SR resources associated with the second level are determined for the physical resources.

[0389] Optionally, based on the pre-established association between SR resources and the second level, SR resources associated with the second level are determined for the physical resource, specifically including:

[0390] Based on the association between SR resources and a set of physical resource indexes, SR resources are determined for the physical resources.

[0391] Optionally, the BFR level corresponding to the physical resource is determined according to network-side configuration or predefined rules, including at least one of the following:

[0392] The terminal determines the BFR level of the cell as either Level 1, Level 2, or a combination of both based on the cell's configuration parameters. Specifically, the terminal determines the BFR level based on the number of BFD RS sets. When the cell configures or indicates one BFD RS set, the terminal determines the BFR level of the cell as Level 1; when the cell configures or indicates two BFD RS sets, the terminal determines the BFR level of the cell as Level 2.

[0393] The terminal determines the BFR level based on the number of possible values ​​of CORESETPoolIndex configured on the network device side. When the number of possible values ​​of CORESETPoolIndex is 0 or 1, the terminal determines the BFR level of the cell to be the first level; when the number of possible values ​​of CORESETPoolIndex is 2, the terminal determines the BFR level of the cell to be the second level.

[0394] The terminal determines the BFR level based on the number of CORESET subsets or BFR procedures configured on the network device side. When the number of CORESET subsets or BFR procedures is 1, the terminal determines the BFR level of the cell to be the first level; when the number of CORESET subsets or BFR procedures is 2, the terminal determines the BFR level of the cell to be the second level.

[0395] Optionally, SR resources are determined for the physical resources based on a predetermined association between SR resources and a higher-level parameter list, wherein the higher-level parameter list includes a physical resource table or a beam failure recovery (BFR) table.

[0396] Optionally, SR resources are determined for the physical resources, specifically including:

[0397] When a BFR is detected, determine the physical resource where the transmission failure occurred, or the higher-level parameter list where the BFR process index is located;

[0398] Based on the determined list of high-level parameters, the corresponding SR resources are determined for the physical resources.

[0399] Optionally, the SR resources are determined for the physical resources based on the predetermined association between the SR resources and the transmission failure detection reference signal set (BFD RS set).

[0400] Optionally, SR resources are determined for the physical resources, specifically including:

[0401] When it is detected that the measured values ​​of all BFD RSs in a BFD RS set are below a preset threshold, the SR resource associated with that BFD RS set is determined for the physical resource.

[0402] Optionally, the SR resource is determined for the physical resource based on the pre-determined association between the SR resource and the index of the control resource set group CORESETPoolIndex or the index of the control resource set CORESET subset configured by the higher layer.

[0403] Optionally, SR resources are determined for the physical resources, specifically including:

[0404] Based on the value of the parameter CORESETPoolIndex of the CORESET group where the transmission failure occurred, or the index of the CORESET subset, the corresponding SR resource is determined for the physical resource.

[0405] Optionally, the determined SR resource i is used for the CORESET group i where the transmission failure occurred; wherein,

[0406] A CORESET with a CORESETPoolIndex value of 0 or no CORESETPoolIndex configured is CORESET group 0; a CORESET with a CORESETPoolIndex value of 1 is CORESET group 1.

[0407] Alternatively, a CORESET with a CORESETPoolIndex value of 0 or no CORESETPoolIndex configured is CORESET group 0; a CORESET with a CORESETPoolIndex value of 1 is CORESET group 1; and a group with CORESETPoolIndex values ​​of 0 and 1 is CORESET group 2.

[0408] Alternatively, a CORESET with a CORESETPoolIndex value of 0 is CORESET group 0, a CORESET with a CORESETPoolIndex value of 1 is CORESET group 1, and a CORESET without a configured CORESETPoolIndex is CORESET group 2.

[0409] Alternatively, a CORESET with a CORESETPoolIndex value of 0 is CORESET group 0, a CORESET with a CORESETPoolIndex value of 1 is CORESET group 1, and a CORESET with a CORESETPoolIndex value of 2 is CORESET group 2.

[0410] Alternatively, the kth CORESET subset configured in the high-level parameter settings can be CORESET group k.

[0411] Optionally, SR resources are determined for the physical resources based on the association between SR resources configured on the network device side and the BFR process index.

[0412] Optionally, SR resources are determined for the physical resources, specifically including:

[0413] When a transmission failure is detected in the physical resource corresponding to a BFR process index, an SR resource associated with that BFR process index is determined for the physical resource.

[0414] Optionally, when the SR resources determined for the physical resources have multiple active spatial relationships, the processor 600 is further configured to:

[0415] From the multiple active spatial relationships, select the spatial relationship associated with the physical resource index that has not experienced a transmission failure and send a Link Recovery Request (LRR).

[0416] Optionally, the physical resource index includes one or more of the following indexes: the index of the beam failure detection reference signal set (BFD RS set) or the index of the NBI set, the beam failure recovery (BFR) process index, the value of the control resource set group index (CORESETPoolIndex), and the index of the control resource set subset (CORESET subset).

[0417] Optionally, the physical resource that experienced the transmission failure is a set of physical resources determined from one or more sets of physical resources that experienced the transmission failure, and the SR resource is determined based on the determined set of physical resources.

[0418] Optionally, a set of physical resources determined from one or more sets of physical resources where transmission failures occurred, based on at least one of the following:

[0419] The carrier unit (CC) index of the physical resource where the transmission failure occurred;

[0420] Index of the physical resource where the transmission failed;

[0421] Index of the BFD RS set where a transmission failure occurred.

[0422] Transceiver 610 is used to receive and send data under the control of processor 600.

[0423] Among them, Figure 4 In this context, the bus architecture can include any number of interconnected buses and bridges, specifically linking various circuits of one or more processors represented by processor 600 and memory represented by memory 620 together. The bus architecture can also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. The bus interface provides an interface. The transceiver 610 can be multiple elements, including transmitters and receivers, providing a unit for communicating with various other devices over a transmission medium. For different user equipment, the user interface 630 can also be an interface capable of connecting external or internal devices, including but not limited to keypads, displays, speakers, microphones, joysticks, etc.

[0424] The processor 600 is responsible for managing the bus architecture and general processing, while the memory 620 can store the data used by the processor 600 when performing operations.

[0425] Optionally, the processor 600 may be a CPU (Central Processing Unit), an ASIC (Application Specific Integrated Circuit), an FPGA (Field-Programmable Gate Array), or a CPLD (Complex Programmable Logic Device).

[0426] On the network side, see Figure 5 This application provides a resource determination device, comprising:

[0427] Memory 520 is used to store program instructions;

[0428] Processor 500 is used to call program instructions stored in the memory and execute them according to the obtained program:

[0429] Configure the correlation between relevant parameters of SR resources and physical resources; the physical resources are the cells or transmission points (TRPs) where transmission failures have occurred.

[0430] The association relationship is notified to the terminal, so that the terminal determines the SR resource for the physical resource based on the association relationship.

[0431] Optionally, the relevant parameters of the physical resources specifically include:

[0432] Beam failure recovery to BFR level; or,

[0433] High-level parameter list; or,

[0434] Transmission Failure Detection Reference Signal Set (BFD RS set); or,

[0435] Control resource set group index CORESETPoolIndex or control resource set CORESET subset index.

[0436] Transceiver 510 is used to receive and send data under the control of processor 500.

[0437] Among them, Figure 5In this context, the bus architecture may include any number of interconnected buses and bridges, specifically linking various circuits together, represented by one or more processors (processor 500) and memory (memory 520). The bus architecture may also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. The bus interface provides an interface. The transceiver 510 may be multiple elements, including transmitters and receivers, providing a unit for communicating with various other devices over a transmission medium. The processor 500 is responsible for managing the bus architecture and general processing, and the memory 520 may store data used by the processor 500 during operation.

[0438] The processor 500 can be a central processing unit (CPU), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or a complex programmable logic device (CPLD).

[0439] On the terminal side, see Figure 6 Another resource determination apparatus provided in this application embodiment is characterized by comprising:

[0440] The first determining unit 11 is used to determine the physical resource where the transmission failure occurred;

[0441] The second determining unit 12 is used to determine the SR resource for the physical resource that has experienced transmission failure based on the correlation between the network-side configured or predefined scheduling request SR resource and the relevant parameters of the physical resource.

[0442] The second determining unit 12 may also have the function of executing the various processes described in the above terminal-side method, which will not be elaborated here.

[0443] On the network side, see Figure 7 Another resource determination apparatus provided in this application includes:

[0444] Configuration unit 21 is used to configure the association between relevant parameters of SR resources and physical resources; the physical resources are cells or transmission points (TRPs) where transmission failures have occurred.

[0445] The notification unit 22 is used to notify the terminal of the association relationship, so that the terminal determines the SR resource for the physical resource according to the association relationship.

[0446] The relevant parameters of the physical resources specifically include:

[0447] Beam failure recovery to BFR level; or,

[0448] High-level parameter list; or,

[0449] Transmission Failure Detection Reference Signal Set (BFD RS set); or,

[0450] Control resource set group index CORESETPoolIndex or control resource set CORESET subset index.

[0451] On the network side, see Figure 8 The information transmission method provided in this application includes:

[0452] S301, Determine beam failure recovery BFR level;

[0453] S302. Send a notification to the terminal containing the beam failure recovery (BFR) level, wherein the BFR level includes: a first level and / or a second level.

[0454] Optionally, the notification may also include transmission failure detection reference signal set (BFD RS set) information.

[0455] On the terminal side, see Figure 9 The information transmission method provided in this application includes:

[0456] S401. Obtain a notification from the network side containing the beam failure recovery (BFR) level.

[0457] S402. Obtain the BFR level from the notification.

[0458] Optionally, the method further includes: obtaining transmission failure detection reference signal set (BFD RS set) information from the notification.

[0459] Optionally, the method further includes:

[0460] Based on the BFR level, determine the transmission failure detection reference signal set (BFD RS set) information.

[0461] On the network side, this application provides an information transmission device (the structural drawings can be compared with those of other devices). Figure 5 Same), including:

[0462] Memory, used to store program instructions;

[0463] The processor is configured to call program instructions stored in the memory and execute them according to the obtained program:

[0464] Send a notification to the terminal containing the beam failure recovery (BFR) level, which includes: a first level and / or a second level.

[0465] Optionally, the notification may also include transmission failure detection reference signal set (BFD RS set) information.

[0466] On the terminal side, the information transmission device provided in this application embodiment (the structural drawings can be compared with those in the previous one) Figure 4 Same), including:

[0467] Memory, used to store program instructions;

[0468] The processor is configured to call program instructions stored in the memory and execute them according to the obtained program:

[0469] Obtain the notification sent by the network side, which includes the beam failure recovery (BFR) level.

[0470] Obtain the BFR level from the notification.

[0471] Optionally, the processor is further configured to invoke program instructions stored in the memory and execute them according to the obtained program:

[0472] Obtain the Transmission Failure Detection Reference Signal Set (BFD RS set) information from the notification.

[0473] Optionally, the processor is further configured to invoke program instructions stored in the memory and execute them according to the obtained program:

[0474] Based on the BFR level, determine the transmission failure detection reference signal set (BFD RS set) information.

[0475] On the network side, see Figure 10 Another information transmission device provided in this application embodiment includes:

[0476] Determining unit 31 is used to determine the beam failure recovery (BFR) level;

[0477] Notification unit 32 is used to send a notification to the terminal containing a beam failure recovery (BFR) level, wherein the BFR level includes: a first level and / or a second level.

[0478] Optionally, the notification may also include transmission failure detection reference signal set (BFD RS set) information.

[0479] On the terminal side, see Figure 11 Another information transmission device provided in this application embodiment includes:

[0480] The first acquisition unit 41 is used to acquire a notification sent by the network side that includes the beam failure recovery (BFR) level.

[0481] The second acquisition unit 42 is used to acquire the BFR level from the notification.

[0482] Optionally, the second acquisition unit 42 is further configured to: acquire transmission failure detection reference signal set (BFDRS set) information from the notification.

[0483] Optionally, the second acquisition unit 42 is further configured to: determine the transmission failure detection reference signal set (BFD RS set) information based on the BFR level.

[0484] It should be noted that the division of units in the embodiments of this application is illustrative and only represents one logical functional division. In actual implementation, other division methods may be used. Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated units described above can be implemented in hardware or as software functional units.

[0485] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) or processor to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0486] This application provides a computing device, which may specifically be a desktop computer, portable computer, smartphone, tablet computer, personal digital assistant (PDA), etc. The computing device may include a central processing unit (CPU), memory, input / output devices, etc. Input devices may include a keyboard, mouse, touchscreen, etc., and output devices may include display devices, such as a liquid crystal display (LCD) or a cathode ray tube (CRT).

[0487] The memory may include read-only memory (ROM) and random access memory (RAM), and provides the processor with program instructions and data stored in the memory. In the embodiments of this application, the memory may be used to store the program of any of the methods provided in the embodiments of this application.

[0488] The processor executes any of the methods described in the embodiments of this application according to the program instructions stored in the memory.

[0489] This application provides a computer storage medium for storing computer program instructions used by the apparatus provided in the above-described embodiments, which includes a program for executing any of the methods provided in the above-described embodiments.

[0490] The computer storage medium can be any available medium or data storage device that a computer can access, including but not limited to magnetic storage (e.g., floppy disks, hard disks, magnetic tapes, magneto-optical disks (MO), etc.), optical storage (e.g., CDs, DVDs, BDs, HVDs, etc.), and semiconductor storage (e.g., ROMs, EPROMs, EEPROMs, non-volatile memory (NAND flash), solid-state drives (SSDs)).

[0491] The method provided in this application can be applied to terminal devices or network devices.

[0492] The terminal equipment can also be called user equipment (UE), mobile station (MS), mobile terminal, etc. Optionally, the terminal can have the ability to communicate with one or more core networks via a radio access network (RAN). For example, the terminal can be a mobile phone (or "cellular" phone) or a mobile computer. For example, the terminal can also be a portable, pocket-sized, handheld, computer-embedded, or vehicle-mounted mobile device.

[0493] Network equipment can be a base station (e.g., an access point), referring to a device in an access network that communicates with a wireless terminal via one or more sectors on the air interface. A base station can be used to convert received air frames to and from IP packets, acting as a router between the wireless terminal and the rest of the access network, which may include an Internet Protocol (IP) network. The base station can also coordinate the management of air interface attributes. For example, a base station can be a base station (BTS, Base Transceiver Station) in GSM or CDMA, a base station (NodeB) in WCDMA, an evolved Node B (NodeB, eNB, or e-NodeB) in LTE, or a gNB in ​​a 5G system, etc. This application does not impose limitations on the embodiments described.

[0494] The above processing flow can be implemented using a software program, which can be stored in a storage medium. When the stored software program is invoked, the above method steps are executed.

[0495] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product implemented on one or more computer-usable storage media (including, but not limited to, disk storage and optical storage) containing computer-usable program code.

[0496] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0497] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0498] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0499] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A resource determination method, characterized by, The method comprises: determining a physical resource that occurs beam failure; the physical resource that occurs beam failure is a group of physical resources determined from one or more groups of physical resources that occur beam failure, and SR resources are determined according to the determined group of physical resources; SR resources are determined for the physical resource that occurs beam failure according to an association relationship between SR resources and related parameters of physical resources configured by a network side or predefined, and SR resources are determined for the physical resource according to a predetermined association relationship between SR resources and a BFD RS set; SR resources are determined for the physical resource, specifically comprising: when it is detected that measurement values of all BFD RSs in a BFD RS set are lower than a preset threshold, SR resources associated with the BFD RS set are determined for the physical resource; wherein the group of physical resources determined from one or more groups of physical resources that occur beam failure is determined according to at least one of the following: a CC index of the physical resource that occurs beam failure; a physical resource index that occurs beam failure; an index of the BFD RS set that occurs beam failure.

2. The method of claim 1, wherein, The SR resources are determined according to the determined group of physical resources, comprising: SR resources are configured according to a primary cell or a primary secondary cell.

3. The method of claim 1, wherein, When the SR resources determined for the physical resource have multiple activated spatial relationships, the method further comprises: from the multiple activated spatial relationships, a spatial relationship associated with a physical resource index that does not occur beam failure is selected to send a LRR.

4. The method of claim 3, wherein, The physical resource index comprises one or more of the following indexes: an index of a BFD RS set or an index of an NBI set, a BFR process index, a value of a CORESETPoolIndex, and an index of a CORESET subset.

5. A resource determining apparatus, characterized by comprising: comprise: a memory for storing program instructions; a processor for calling the program instructions stored in the memory and performing the following according to the obtained program execution: determining a physical resource that occurs beam failure; the physical resource that occurs beam failure is a group of physical resources determined from one or more groups of physical resources that occur beam failure, and SR resources are determined according to the determined group of physical resources; SR resources are determined for the physical resource that occurs beam failure according to an association relationship between SR resources and related parameters of physical resources configured by a network side or predefined, and SR resources are determined for the physical resource according to a predetermined association relationship between SR resources and a BFD RS set; SR resources are determined for the physical resource, specifically comprising: when it is detected that measurement values of all BFD RSs in a BFD RS set are lower than a preset threshold, SR resources associated with the BFD RS set are determined for the physical resource; The set of physical resources is determined from the one or more sets of physical resources in which beam failure occurs according to at least one of: a carrier component (CC) index of the physical resource in which beam failure occurs; a physical resource index in which beam failure occurs; an index of a BFD RS set in which beam failure occurs.

6. The apparatus of claim 5, wherein, The SR resource is determined according to the determined set of physical resources, including: The SR resource is configured according to a primary cell or a primary secondary cell.

7. The apparatus of claim 5, wherein, When the SR resource determined for the physical resource has a plurality of activated spatial relations, the processor is further configured to: select a spatial relation associated with a physical resource index in which beam failure does not occur from the plurality of activated spatial relations to send a link recovery request (LRR).

8. A resource determining apparatus, characterized by comprising: including: a first determination unit configured to determine a physical resource in which beam failure occurs; The physical resource in which beam failure occurs is a set of physical resources determined from one or more sets of physical resources in which beam failure occurs, and the SR resource is determined according to the determined set of physical resources; a second determination unit configured to determine an SR resource for the physical resource in which beam failure occurs according to an association relationship between a network-side configured or predefined scheduling request (SR) resource and a physical resource related parameter, and determine an SR resource for the physical resource according to a predetermined association relationship between the SR resource and a beam failure detection reference signal set (BFD RS set); The SR resource is determined for the physical resource, specifically including: when it is detected that the measurement values of all BFD RSs in a BFD RS set are lower than a preset threshold, determining an SR resource associated with the BFD RS set for the physical resource; The set of physical resources is determined from the one or more sets of physical resources in which beam failure occurs according to at least one of: a carrier component (CC) index of the physical resource in which beam failure occurs; a physical resource index in which beam failure occurs; an index of a BFD RS set in which beam failure occurs.

9. The apparatus of claim 8, wherein, The SR resource is determined according to the determined set of physical resources, including: The SR resource is configured according to a primary cell or a primary secondary cell.

10. A computer storage medium, characterized in that, The computer storage medium stores computer executable instructions for causing the computer to perform the method of any one of claims 1 to 4.

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