A beam failure processing method and related equipment

Abstract

The present invention provides a beam failure processing method and related equipment, the method comprising: determining whether a beam failure occurs in a first cell group according to a beam failure detection reference signal BFD RS resource group, wherein the BFDRS resource group is configured in the first cell group; in the case of a beam failure in the first cell group, sending a beam failure recovery request message to a network side device. In the beam failure processing method provided by the present invention, in a multi-carrier system, if a beam failure occurs in the first cell group, the terminal can send a beam failure recovery request message to the network side device in a timely manner, thereby improving the communication performance of the terminal and reducing the resource overhead of configuring RS resources and transmitting the beam failure recovery request message.

Description

Technical Field

[0001] The present invention relates to the field of communication technology, and in particular to a beam failure processing method and related equipment. Background Art

[0002] With the development of wireless communication technology, high-frequency communication can provide a wider system bandwidth. Compared with low-frequency bands, more antenna elements can be arranged on the antenna panel of the same size, which is conducive to the deployment of large-scale antennas in base stations and terminals (User Equipment, UE). In addition, beamforming technology can form beams with stronger directivity and narrower lobes, thereby improving system coverage and capacity. Therefore, combining beamforming technology with high-frequency communication and large-scale antenna technology has become a development trend of wireless communication systems.

[0003] Multi-carrier systems are introduced into wireless communication systems because they can meet greater bandwidth requirements. A typical multi-carrier system (e.g., in a carrier aggregation scenario) has a service cell consisting of a primary service cell (PCell) and at least one secondary service cell (SCell), and the PCell and each SCell can provide services to the terminal, so that the terminal can have multiple service cells at the same time.

[0004] Due to factors such as sudden channel fluctuations, unexpected obstacle interruptions, and terminal rotation in the millimeter wave system, the beam between the terminal and the network side device may fail, resulting in relatively low communication performance of the terminal. Summary of the invention

[0005] The embodiments of the present invention provide a beam failure processing method, a terminal and a network-side device to solve the problem that the communication performance of the terminal is relatively low due to beam failure in the current multi-carrier system.

[0006] To solve the above problems, the present invention is achieved as follows:

[0007] In a first aspect, an embodiment of the present invention provides a beam failure processing method, which is applied to a terminal, including:

[0008] Determine whether a beam failure occurs in a first cell group according to a beam failure detection reference signal BFD RS resource group, wherein the BFD RS resource group is configured in the first cell group;

[0009] In the event of a beam failure in the first cell group, a beam failure recovery request message is sent to a network side device.

[0010] In a second aspect, an embodiment of the present invention provides a beam failure processing method, which is applied to a network side device, including:

[0011] A beam failure recovery request message sent by a receiving terminal;

[0012] Among them, the beam failure recovery request message is: the terminal determines the message sent when a beam failure occurs in the first cell group based on the BFD RS resource group; the BFD RS resource group is configured in the first cell group.

[0013] In a third aspect, an embodiment of the present invention further provides a terminal, including:

[0014] A determination module, configured to determine whether a beam failure occurs in a first cell group according to a beam failure detection reference signal BFD RS resource group, wherein the BFD RS resource group is configured in the first cell group;

[0015] A sending module is used to send a beam failure recovery request message to a network side device when a beam failure occurs in the first cell group.

[0016] In a fourth aspect, an embodiment of the present invention provides a network side device, including:

[0017] A receiving module, used for receiving a beam failure recovery request message sent by a terminal;

[0018] Among them, the beam failure recovery request message is: the terminal determines the message sent when a beam failure occurs in the first cell group based on the BFD RS resource group; the BFD RS resource group is configured in the first cell group.

[0019] In a fifth aspect, an embodiment of the present invention further provides a terminal, comprising a processor, a memory, and a computer program stored in the memory and executable on the processor, wherein the computer program, when executed by the processor, implements the steps of the beam failure processing method as described in the first aspect.

[0020] In the sixth aspect, an embodiment of the present invention further provides a network side device, which includes a processor, a memory, and a computer program stored in the memory and executable on the processor, wherein the computer program, when executed by the processor, implements the steps of the beam failure processing method as described in the second aspect.

[0021] In the seventh aspect, an embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps of the beam failure processing method as described in the first aspect, or the steps of the beam failure processing method as described in the second aspect are implemented.

[0022] In an embodiment of the present invention, it is determined whether a beam failure occurs in the first cell group according to a beam failure detection reference signal BFD RS resource group, wherein the BFD RS resource group is configured in the first cell group; in the case of a beam failure in the first cell group, a beam failure recovery request message is sent to a network side device. In this way, in a multi-carrier system, if a beam failure occurs in the first cell group, the terminal can send a beam failure recovery request message to the network side device in a timely manner, thereby improving the communication performance of the terminal and reducing the resource overhead of configuring RS resources and transmitting beam failure recovery request messages. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative labor.

[0024] Figure 1 is a structural diagram of a network system to which an embodiment of the present invention can be applied;

[0025] Figure 2 This is one of the flowcharts of the beam failure processing method provided by an embodiment of the present invention;

[0026] Figure 3 This is a second flow chart of a beam failure processing method provided by an embodiment of the present invention;

[0027] Figure 4 This is one of the schematic diagrams of the structure of the terminal provided by the embodiment of the present invention;

[0028] Figure 5 It is one of the structural diagrams of the network side device provided by the embodiment of the present invention;

[0029] Figure 6 This is a second schematic diagram of the structure of a terminal provided by an embodiment of the present invention;

[0030] Figure 7 This is the second structural diagram of the network side device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] See also Figure 1 , Figure 1 is a schematic diagram of a network structure applicable to the embodiment of the present invention, such as Figure 1 As shown, it includes a terminal (User Equipment, UE) 11 and a network side device 12, wherein the terminal 11 can be a terminal side device such as a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer), a personal digital assistant (Personal Digital Assistant, PDA), a mobile Internet device (Mobile Internet Device, MID) or a wearable device (Wearable Device). It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present invention. The above-mentioned network side device 12 can be a macro base station, LTE eNB, 5G NR NB, etc.; the network side device 12 can also be a small base station, such as a low power node (Low Power Node, LPN) pico, femto and other small base stations, or the network side device 12 can be an access point (AP, access point); the base station can also be a network node composed of a central unit (Central Unit, CU) and multiple transmission reception points (Transmission Reception Point, TRP) managed and controlled by it. It should be noted that the specific type of the network side device 12 is not limited in the embodiment of the present invention.

[0033] It should be noted that the beam failure processing method of an embodiment of the present invention is applied to a multi-carrier system. In a typical multi-carrier system (such as a carrier aggregation scenario), the terminal 11 can be connected to multiple cells, that is, multiple cells serve the terminal at the same time, and the multiple cells generally include: a primary cell (Primary Cell, PCell) and at least one secondary cell (Secondary Cell, SCell).

[0034] The following describes a method for handling beam failure in an embodiment of the present invention.

[0035] See also Figure 2 , Figure 2 is a flow chart of a beam failure processing method provided by an embodiment of the present invention, which is applied to a terminal, such as Figure 2 As shown, the following steps are included:

[0036] Step 201: Determine whether a beam failure occurs in a first cell group according to a beam failure detection reference signal BFD RS (Beam Failure Detection Reference Signal, BFD RS) resource group, wherein the BFD RS resource group is configured in the first cell group.

[0037] In an embodiment of the present invention, the above-mentioned first cell group can be a cell group agreed upon by protocol or configured by network side equipment, including at least one cell in the cell to which the above-mentioned terminal is connected, and the above-mentioned BFD RS resource group is configured in the first cell group, and the above-mentioned BFD RS resource group can be configured in part or all of the cells in the above-mentioned first cell group including at least one cell.

[0038] The above-mentioned first cell group may include only one cell, such as the first cell group includes a primary cell or a secondary cell; or, it may also include multiple cells that meet preset conditions, such as multiple cells in the same frequency band are located in the first cell group.

[0039] Optionally, the first cell group includes:

[0040] Some or all secondary cells in the same frequency band; or,

[0041] A primary cell and at least one secondary cell in the same frequency band.

[0042] Here, since the spatial characteristics of the beams in the cells in the same frequency band are similar or the same, such as at least one of the spatial information, spatial parameters, quasi co-location (QCL) information, etc. are similar or the same, the cells in the same frequency band are pre-agreed or configured in the same cell group, so that the correlation between the cells in the same cell group is higher.

[0043] In addition, among the multiple cells connected to the above-mentioned terminal, one or more cell groups may be agreed upon or pre-configured by protocol, and when one cell group is agreed upon or pre-configured by protocol, the one cell group is the above-mentioned first cell group, and other cells outside the first cell group are not grouped; or, multiple cell groups may be configured, and each cell connected to the terminal is agreed upon or pre-configured in a corresponding cell group by protocol, and the above-mentioned first cell group may be any cell group among the multiple cell groups.

[0044] For example: when the multiple cells connected to the above-mentioned terminal include PCell, SCell 1, SCell 2, SCell 3 and SCell 4, and PCell and SCell 1 are in the same frequency band, and SCell 2, SCell 3 and SCell 4 are in the same frequency band, PCell and SCell 1 can be pre-configured in cell group 1, and SCell 2, SCell 3 and SCell 4 can be pre-configured in cell group 2.

[0045] It should be noted that, in one or more cell groups in the cell to which the above-mentioned terminal is connected, a corresponding group of BFD RS resources is configured in each cell group. The above-mentioned first cell group may be any cell group in the above-mentioned one or more cell groups. Here, for the sake of distinction, the BFD RS resource group referred to in the embodiment of the present invention is configured in the first cell group, and the BFD RS resource group configured in the cell group other than the first cell group is referred to as other BFD RS resource groups.

[0046] The BFD RS resource group is configured in the first cell group and may include but is not limited to any of the following:

[0047] In the case where the first cell group includes only one cell (such as a primary cell or a secondary cell), the BFD RS resource group is configured on the one cell; or,

[0048] In the case where the first cell group includes multiple cells, the BFD RS resource group serves as a common RS resource for the multiple cells, and the BFD RS resource group is configured on part or all of the multiple cells, thereby reducing resource overhead.

[0049] Optionally, the BFD RS resource group is configured in N preset cells in the first cell group, where N is a positive integer, wherein:

[0050] The N preset cells are part of the cells in the first cell group, and each preset cell is a cell with a preset cell index (Cell Index); or,

[0051] The N preset cells are all cells in the first cell group; or,

[0052] In the case where the first cell group includes a primary cell, the N preset cells are primary cells.

[0053] Here, the BFD RS resource group can be configured in some or all cells in the first cell group; or, when the first cell group includes a primary cell, the BFD RS resource group is configured in the primary cell, thereby making the configuration of the BFD RS resource group in each cell group flexible.

[0054] In an embodiment of the present invention, the above-mentioned BFD RS resource group is configured in the first cell group, which can be implemented by configuration of a network side device. Optionally, before the above-mentioned step 101, it also includes: receiving first configuration information sent by the network side device, and the first configuration information is used to configure the BFD RS resource group in the first cell group, thereby accurately configuring the BFD RS resource group for each cell group according to actual needs.

[0055] The first configuration information may be any information that can realize configuring the BFD RS resource group in the first cell group, for example, the first configuration information may include association information between the BFD RS resource group and the first cell group, etc. Of course, the first configuration information may also include information for configuring other BFD RS resource groups in corresponding cell groups, which is not limited here.

[0056] In addition, in order to configure the BFD RS resource group on some cells within the first cell group, that is, the BFD RS resource group is configured on N preset cells with preset cell indexes, optionally, the first configuration information includes the preset cell index of the cell where the BFD RS resource group is located, thereby simplifying the method of configuring the BFD RS resource group on some cells within the first cell group and reducing resource overhead.

[0057] For example: when the first cell group includes SCell 2, SCell 3 and SCell 4, and the cell indexes of SCell 3 and SCell 4 are preset cell indexes, if the BFD RS resource group needs to be configured in SCell 3 and SCell 4, the first configuration information includes the cell indexes of SCell 3 and SCell 4.

[0058] It should be noted that the first configuration information sent by the receiving network side device may be the first configuration information sent by the receiving network side device through radio resource control (Radio Resource Control, RRC), or the first configuration information may also be sent by the network side device through other resources or signaling, which is not limited here.

[0059] In an embodiment of the present invention, in the above step 201, determining whether beam failure occurs in the first cell group based on the BFD RS resource group may be: the terminal detects whether beam failure occurs in some or all cells configured with the BFD RS resource group, such as measuring the signal transmission quality based on the BFD RS resources of the beam of each cell. If the signal transmission quality is lower than a preset threshold, it is considered that beam failure occurs in the cell, and so on; and determining whether beam failure occurs in the first cell group based on whether beam failure occurs in some or all cells.

[0060] It should be noted that the above-mentioned BFD RS resource group includes at least one BFD RS resource, and the above-mentioned BFD RS resource group is configured in the first cell group, which can be understood as the at least one BFD RS resource is configured on part or all of the cells in the first cell group.

[0061] For example: in the case where the first cell group includes cell group 1 of PCell and SCell 1, if the BFD RS resource group includes BFD RS resource 1, BFD RS resource 2 and BFD RS resource 3, BFD RS resource 1, BFD RS resource 2 and BFD RS resource 3 can be configured in at least one cell in PCell and SCell, such as BFD RS resource 1 is configured in PCell and BFD RS resource 2 and BFD RS resource 3 are configured in SCell 1, or, BFD RS resource 1, BFD RS resource 2 and BFD RS resource 3 are configured in SCell 1, and so on.

[0062] Of course, the above-mentioned terminal detects whether beam failure occurs in some or all cells configured with the BFD RS resource group. It can be understood that the terminal measures the BFD RS resources of each cell configured with BFD RS resources in the first cell group to determine whether beam failure occurs in each cell configured with BFD RS resources.

[0063] In addition, since in the above-mentioned BFD RS resource group, multiple BFD RS resources may be configured simultaneously on one cell, and different BFD RS resources are used to measure different beams on the one cell, the above-mentioned detection of whether a beam failure occurs in the cell may be to determine that a beam failure occurs in the cell when it is detected that part or all of the beams corresponding to the BFD RS resources on the cell fail.

[0064] In a specific embodiment of the present invention, since the above-mentioned BFD RS resource group can be N preset cells configured in the first cell group, and when N=1, that is, the above-mentioned BFD RS resource group is configured in a preset cell (such as PCell), if a beam failure occurs in the one preset cell, it is determined that a beam failure occurs in the above-mentioned first cell group.

[0065] Alternatively, the BFD RS resource group may be configured in a plurality of preset cells, that is, optionally, when the N preset cells are some of the cells or all of the cells, and N is greater than 1, the determining whether a beam failure occurs in the first cell group includes:

[0066] In the case that beam failure occurs in all cells of the N preset cells, determining that beam failure occurs in the first cell group;

[0067] When beam failure occurs in a first number of cells among the N preset cells, it is determined that beam failure occurs in the first cell group.

[0068] Here, it may be that when beam failure occurs in all cells among N preset cells or in a first number of cells, it is determined that beam failure occurs in the first cell group, so that the method of determining whether beam failure occurs in the first cell group is more flexible.

[0069] Among them, since multiple cells in the same cell group are usually associated, for example: when the above-mentioned first cell group includes multiple cells in the same frequency band, the spatial characteristics of the beams on the multiple cells in the first cell group are the same or similar, then when a beam failure occurs in any cell among the multiple cells in the same cell, the possibility of beam failure occurring in other cells in the cell group is relatively high. Therefore, when a beam failure occurs in the first number of cells among the N preset cells, it can be determined that a beam failure occurs in the first cell group.

[0070] In addition, the above-mentioned first number can be a number agreed upon by the protocol, configured by the network side device or pre-set by the terminal, and the first number can be one or other number less than N, which is not limited here.

[0071] Step 202: When a beam failure occurs in the first cell group, a beam failure recovery request message is sent to a network side device.

[0072] In which, when it is determined in the above step 201 that a beam failure occurs in the first cell group, the terminal may send a beam failure recovery request message to the network side device to notify the network side device that a beam failure occurs in the first cell group of the terminal.

[0073] In addition, in the case of a beam failure in the first cell group, an alternative beam can be found between the terminal and the network side device, and the alternative beam can be used to replace the failed beam in the first cell group for data transmission and reception, thereby achieving fault recovery. Of course, the alternative beam can also be a protocol agreement or a network side device configuration, which is not limited here.

[0074] Alternatively, the terminal may also determine the information of the replacement beam through the following implementation mode 1, so that the network side device determines the replacement beam through the information of the replacement beam, as follows:

[0075] Implementation Method 1

[0076] In this implementation manner, before sending the beam failure recovery request message to the network side device, it also includes: determining information of an alternative beam.

[0077] The above-mentioned method for determining the information of the replacement beam may include but is not limited to the following method 1 and method 2:

[0078] Method 1

[0079] In method 1, the network side device configures an RS resource set for the terminal for beam training, and the terminal measures each RS resource in the RS resource set to determine the RS resources in the RS resource set that meet the preset conditions. If the L1-RSRP of a certain RS resource is higher than the threshold value, it is determined that the RS resource meets the preset conditions.

[0080] In addition, the terminal reports the information of at least one RS resource that meets the preset conditions to the network side device, and the reporting method may include: carrying a beam failure recovery request message to the network side device, or carrying a beam report to the network side device. So that the network side device determines the replacement beam according to the information of at least one RS resource reported by the terminal, and the replacement beam determined above is also the candidate beam.

[0081] It should be noted that the information of the above-mentioned RS resources may include at least one of RS resource index, layer 1 reference signal received power (Layer 1 Reference Signal Received Power, L1-RSRP) and layer 1 signal to interference plus noise ratio (Layer 1 Signal-to-Noise And Interference Ratio, L1-SINR) and the like.

[0082] Method 2

[0083] In the second method, before sending the beam failure recovery request message to the network side device, the method further includes: determining a target candidate beam RS resource according to the candidate beam RS resource group;

[0084] Among them, the beam failure recovery request message is used to indicate the information of the target candidate beam RS resources; the candidate beam RS resource group is configured in the second cell group.

[0085] Here, the terminal can determine the target candidate beam RS resources based on the candidate beam RS resource group, and the beam failure recovery request message is used to indicate the information of the target candidate beam RS resources, so that the terminal can directly determine the candidate beam based on the information of the target candidate beam RS resources, thereby improving the efficiency of determining the alternative beam.

[0086] In the second method, the candidate beam RS resource group may be configured in the terminal by a network side device. Optionally, before the step 203, the following steps are included:

[0087] Receive second configuration information sent by the network side device, where the second configuration information is used to configure the candidate beam RS resource group in the second cell group.

[0088] Here, the network side device can configure the candidate beam RS resource group in the second cell group through the second configuration information, so as to accurately configure the candidate beam RS resource group for each cell group according to actual needs.

[0089] It should be noted that the second cell group and the first cell group may be the same cell group; or, the second cell group and the first cell group may be different cell groups, for example: the first cell group includes PCell and SCell 1, and the second cell group includes SCell 2, SCell 3 and SCell 4, etc.; or, some cells in the second cell group and the first cell group are the same.

[0090] In the second method, the candidate beam RS resource group is configured in the second cell group, which may be that the candidate beam RS resource group is configured in part or all of the cells in the second cell group.

[0091] Optionally, the candidate beam RS resource group is configured in M ​​preset cells in the second cell group, where M is a positive integer, wherein:

[0092] The M preset cells are part of the cells in the second cell group, and each preset cell is a cell with a preset cell index; or,

[0093] The M preset cells are all cells in the second cell group; or,

[0094] In the case where the second cell group includes a primary cell, the M preset cells are the primary cells.

[0095] Among them, the implementation principle of configuring the above-mentioned candidate beam RS resource group in the second cell group may be similar to the implementation principle of configuring the above-mentioned BFD RS resource group in the first cell group, and will not be repeated here.

[0096] It should be noted that the above-mentioned second cell group includes at least one cell, the above-mentioned candidate beam RS resource group includes at least one candidate beam RS resource, and the above-mentioned candidate beam RS resource group is configured in the second cell group, and the above-mentioned at least one candidate beam RS resource may be configured in part or all of the above-mentioned at least one cell.

[0097] In addition, the information of the target candidate beam RS resource may include at least one of the following:

[0098] The index of the target candidate beam RS resource;

[0099] L1-RSRP of the target candidate beam RS resources;

[0100] L1-SINR of target candidate beam RS resources, and so on.

[0101] In an embodiment of the present invention, the above-mentioned terminal sends a beam failure recovery request message to a network side device, which may be sending the beam failure recovery request message to the network side device on the first cell group or the second cell group, or may be sending the beam failure recovery request message to the network side device on a cell group or cell other than the first cell group or the second cell group.

[0102] In specific implementation, the terminal may send a beam failure recovery request message to the network side device through at least one of the following implementation modes 2 to 4:

[0103] Implementation Method 2

[0104] In this implementation manner, the above-mentioned sending a beam failure recovery request message to the network side device includes: sending a beam failure recovery request message to the network side device on a first cell, and the first cell is a cell to which the terminal is connected.

[0105] Here, in the above-mentioned case of sending a beam failure recovery request message to the network side device on the first cell, the terminal may be pre-configured with a first cell determination method corresponding to different scenarios, so that in different scenarios, the terminal can determine the first cell according to the first cell determination method corresponding to the current scenario.

[0106] Specifically, the first cell may be a first cell determined by comparing whether the PCell and the SCell connected to the terminal are in the same frequency band, and the first cell determined according to the first cell determination method corresponding to the comparison result may include the following method 1 and method 2:

[0107] Method 1

[0108] In method 1, the PCell and the SCell are in the same frequency band, and the first cell may include any of the following:

[0109] PCell;

[0110] A preset cell in the first cell group or the second cell group, such as a cell with a preset cell index in the first cell group or the second cell group, wherein the second cell group is a cell group configured with a candidate beam RS resource group;

[0111] A secondary cell outside the first cell group or the second cell group in the cell to which the terminal is connected;

[0112] The preset cell in the third cell group, and so on.

[0113] In the first mode, the first cell may be any secondary cell outside the first cell group or the second cell group. Optionally, when the first cell is a secondary cell outside the first cell group or the second cell group in the cell to which the terminal is connected, the first cell may satisfy at least one of the following:

[0114] is a secondary cell associated with the first cell group or the second cell group; or,

[0115] is a secondary cell indicated by the network side; or

[0116] A secondary cell selected from multiple secondary cells configured by the network side; or,

[0117] A secondary cell in the same frequency band as the first cell group or the second cell group;

[0118] Of course, the above-mentioned first cell may also be a secondary cell in a different frequency band from the first cell group or the second cell group.

[0119] It should be noted that the second cell group in method one and the second cell group in the above-mentioned implementation mode one are the same cell group.

[0120] In addition, the third cell group may be the same cell group as the first cell group and the second cell group; or, the third cell group may be different cell groups from the first cell group and the second cell group; or, the third cell group may have some cells in common with the first cell group and the second cell group.

[0121] Method 2

[0122] The PCell and the SCell are in different frequency bands. Optionally, the PCell is in a first frequency range and the SCell is in a second frequency range, or the PCell and the SCell are in different frequency bands of the second frequency range, wherein the first frequency range is lower than the second frequency range (e.g., the first frequency range is FR1 and the second frequency range is FR2). The first cell may include but is not limited to any of the following:

[0123] PCell, for example: PCell on FR1, PCell on FR2, or whether PCell is on FR1 or FR2, the first cell is PCell;

[0124] A cell in the same frequency band as the first cell group or the second cell group, wherein the second cell group is a cell group configured with a candidate beam RS resource group;

[0125] A secondary cell located in a frequency band other than the frequency band in which the first cell group or the second cell group is located in the second frequency range;

[0126] The preset cell in the fourth cell group.

[0127] In the second method, when the first cell is a cell in the same frequency band as the first cell group or the second cell group, the first cell may include any of the following:

[0128] One of the secondary cells in the first cell group where beam failure occurs, for example, may be any secondary cell that meets a preset condition (such as a secondary cell with a preset cell index) among the secondary cells in the first cell group where beam failure occurs;

[0129] A secondary cell different from the cell in the first cell group where the beam failure occurs, for example: a secondary cell that meets a preset condition, a secondary cell associated with the first cell group, a secondary cell indicated by a network side device, or a secondary cell selected by the terminal from multiple secondary cells configured by the network side device, etc. Of course, the secondary cell may be a cell in the first cell group, or a cell outside the first cell group, including:

[0130] One of the secondary cells configured with candidate beam RS resources in the second cell group, for example, any secondary cell that meets a preset condition (such as a secondary cell with a preset cell index) among the secondary cells configured with candidate beam RS resources in the second cell group; or

[0131] A secondary cell different from the cell configured with the candidate beam RS resource in the second cell group, for example: a secondary cell that meets a preset condition, a secondary cell associated with the second cell group, a secondary cell indicated by a network side device, or a secondary cell selected by the terminal from multiple secondary cells configured by the network side device, etc. The secondary cell may be a cell in the second cell group, or a cell outside the second cell group, etc.

[0132] In addition, in the case where the above-mentioned first cell is a secondary cell located in a frequency band in the second frequency range other than the frequency band in which the first cell group or the second cell group is located, the secondary cell may be a cell that meets preset conditions, for example: a secondary cell associated with the first cell group or the second cell group, a secondary cell indicated by a network side device, or a secondary cell selected by the terminal from multiple secondary cells configured by the network side device, and so on.

[0133] It should be noted that the second cell group described in the second method and the second cell group in the above-mentioned implementation mode one are the same cell group.

[0134] In addition, the fourth cell group and the first cell group and the second cell group in implementation mode one may be the same cell group; or, the fourth cell group and the first cell group and the second cell group may be different cell groups; or, the fourth cell group and the first cell group and the second cell group may have some cells in common.

[0135] Implementation Method 3

[0136] In this implementation, the above-mentioned sending of a beam failure recovery request message to the network side device includes: sending a beam failure recovery request message to the network side device in a first manner on a second cell, wherein the second cell is a cell to which the terminal is connected, so that the method of sending the failure recovery request message on the second cell can be configured as needed.

[0137] The second cell may be any cell that can send the beam failure recovery request message, for example, the second cell may be the first cell in the second implementation mode.

[0138] In addition, the first manner may be any manner that can implement sending a beam failure recovery request message on the second cell. Optionally, the first manner includes any one of the following:

[0139] Sending a beam failure recovery request message on a physical random access channel (PRACH) resource;

[0140] Sending a beam failure recovery request message on a physical uplink control channel (PUCCH) resource;

[0141] A beam failure recovery request message is sent on a Medium Access Control (MAC) control element (CE).

[0142] Here, the terminal can send a beam failure recovery request message on a PRACH resource, a PUCCH resource or a MAC CE, thereby making the way in which the terminal sends a beam failure recovery request message on a cell flexible.

[0143] It should be noted that in order to enable the above-mentioned terminal to send the beam failure recovery request message in the first manner, the terminal needs to configure the channel resources of the first manner on the second cell. Optionally, before sending the beam failure recovery request message to the network side device in the first manner on the second cell, it also includes:

[0144] Receive third configuration information sent by the network side device, where the third configuration information is used to configure channel resources used by the first method for the terminal in the second cell.

[0145] For example: when the first method is to send a beam failure recovery request message on PRACH resources, the third configuration information is used to configure PRACH resources for the terminal on the second cell; or, when the first method is to send a beam failure recovery request message on PUCCH resources, the third configuration information is used to configure PUCCH resources for the terminal on the second cell; or, when the first method is to send a beam failure recovery request message on MAC CE, the third configuration information is used to configure the physical channel resources where MAC CE is located for the terminal on the second cell.

[0146] In this implementation, the terminal can send a beam failure recovery request message through PRACH resources on the second cell, and the above-mentioned PRACH resources can be at least one of non-contention PRACH resources and contention PRACH resources, so the terminal can send a beam failure recovery request message through non-contention PRACH resources or contention PRACH resources.

[0147] Optionally, in the case where the first manner is to send a beam failure recovery request message on a PRACH resource, the PRACH resource is a non-contention PRACH resource and / or a contention PRACH resource;

[0148] The sending of the beam failure recovery request message to the network side device in the first manner on the second cell includes:

[0149] Send a beam failure recovery request message on a non-contention PRACH resource; or,

[0150] In case of failure to send a beam failure recovery request message on a non-contention PRACH resource, sending a beam failure recovery request message on a contention PRACH resource; or,

[0151] If the target candidate beam RS resource is not determined, a beam failure recovery request message is sent in the contention PRACH resource; or,

[0152] In the case where the PRACH resources are only contention PRACH resources, a beam failure recovery request message is sent on the contention PRACH resources.

[0153] Here, the terminal can send a beam failure recovery request message through non-contention PRACH resources or contention PRACH resources in different scenarios, making the method of sending a beam failure recovery request message through PRACH resources flexible.

[0154] Among them, it can be seen from the above-mentioned embodiment one that the above-mentioned beam failure recovery request message can be used to indicate the information of the target candidate beam RS resources, and in the case of sending the beam failure recovery request message with non-contention PRACH resources or contention PRACH resources, the beam failure recovery request message may carry the information of the target candidate beam RS resources.

[0155] Alternatively, optionally, the contention-free PRACH resources are associated with the target candidate beam RS resources, so that when a beam failure recovery request message is sent via the contention-free PRACH resources, the network side device can obtain the target candidate beam RS resources through the association between the contention-free PRACH resources and the target candidate beam RS resources, thereby saving resource overhead.

[0156] It should be noted that the above-mentioned PRACH resources may be configured on the frequency band where the first cell group is located, or may be configured on a frequency band outside the frequency band where the first cell group is located. Optionally, when the primary cell and the secondary cell to which the above-mentioned terminal is connected are in different frequency bands, the PRACH resources may be PRACH resources configured on the frequency band where the first cell group is located.

[0157] In addition, when the first method is to send a beam failure recovery request message on a PUCCH resource, the PUCCH resource may be configured on a PCell or a SCell. Optionally, when the primary cell and the secondary cell to which the terminal is connected are in different frequency bands, and the first method is to send a beam failure recovery request message on a physical uplink control channel PUCCH resource, the third configuration information is used to configure the PUCCH resource on the primary cell, that is, at this time, the PUCCH resource is only configured on the PCell, and the PUCCH resource is not configured on the SCell.

[0158] Of course, in the case where the above-mentioned beam failure recovery request message can be used to indicate the information of the target candidate beam RS resources, when the above-mentioned beam failure recovery request message is sent in the MAC-CE or PUCCH resource, the beam failure recovery request message may carry information for indicating the candidate beam RS resources.

[0159] Optionally, when the first method is to send a beam failure recovery request message on the PUCCH resource or to send a beam failure recovery request message on the MACCE, the beam failure recovery request message carries first information and / or second information, wherein the first information is used to indicate that a beam failure occurs in the first cell group, and the second information is used to indicate information of a candidate beam.

[0160] Among them, the above-mentioned second information can be any information that can be used for the network side device to determine the candidate beam, which may include information of at least one RS resource, so that the network side device determines the candidate beam based on the information of the at least one RS resource; or, it may only include information of the target candidate beam RS resources, so that the network side device can directly determine the candidate beam based on the information of the target candidate beam RS resources, that is, optionally, the information of the candidate beam may include information of the target candidate beam RS resources.

[0161] In addition, the information of the above-mentioned target candidate beam RS resources can be obtained by the method 2 in the above-mentioned implementation mode 1, or can also be obtained by other methods, which is not limited here.

[0162] In this implementation manner, the second information may include at least one of the following:

[0163] The index of the target candidate beam RS resource;

[0164] L1-RSRP of the target candidate beam RS resources;

[0165] L1-SINR of target candidate beam RS resources, and so on.

[0166] It should be noted that, when the terminal sends a beam failure recovery request message through a first method, the network side device may also receive the beam failure recovery request message through a second method corresponding to the first method, for example: when the first method is to send a beam failure recovery request message on a PRACH resource, the second method is to receive a beam failure recovery request message on a PRACH resource; or, when the first method is to send a beam failure recovery request message on a PUCCH resource, the second method is to receive a beam failure recovery request message on a PUCCH resource; or, when the first method is to send a beam failure recovery request message on a MAC CE, the second method is to receive a beam failure recovery request message on a MAC CE.

[0167] Implementation Method 4

[0168] In this implementation manner, the sending of a beam failure recovery request message to a network side device includes:

[0169] A beam failure recovery request message is sent to a network side device on a target uplink beam, wherein the target uplink beam is at least one uplink beam on a third cell, and the third cell is a cell to which the terminal is connected.

[0170] Here, the above-mentioned terminal can send a beam failure recovery request message to the network side device on the target uplink beam, thereby making the way in which the terminal sends the beam failure recovery request message more flexible.

[0171] Among them, the above-mentioned target uplink beam can be an uplink beam pre-set by the terminal, agreed upon by the protocol, or configured on the network side; or, it can also be an uplink beam determined by the terminal.

[0172] Optionally, before sending a beam failure recovery request message to a network side device on a target uplink beam, the method further includes:

[0173] The target uplink beam is determined based on a preset uplink beam, wherein the preset uplink beam includes at least one of the following:

[0174] The beam of the uplink channel and / or uplink reference signal most recently sent by the terminal;

[0175] The beam used by the terminal to send the PUCCH most recently;

[0176] A beam of a preset PUCCH on a preset cell and / or on a preset bandwidth part BWP, and the preset PUCCH has a preset PUCCH resource index.

[0177] Here, the terminal can determine the target uplink beam based on the preset uplink beam, thereby improving communication performance.

[0178] Among them, the beam of the uplink channel and / or uplink reference signal most recently sent may be the beam of the uplink channel and / or uplink reference signal most recently sent on the third cell, the first cell, the second cell, the cell in the first cell group, the cell in the second cell group, the cell in the third cell group, the cell in the fourth cell group or a predefined cell; similarly, the beam of the PUCCH most recently sent may also be the beam of the PUCCH most recently sent on the third cell, the first cell, the second cell, the cell in the first cell group, the cell in the second cell group, the cell in the third cell group, the cell in the fourth cell group or a predefined cell.

[0179] In addition, the preset cell may be a cell with a preset cell index, for example, the preset cell index is a minimum cell index or a maximum cell index. The preset BWP may be a BWP with a preset BWP index, for example, the preset BWP index is a minimum BWP index or a maximum BWP index. The preset PUCCH resource index may be a minimum PUCCH resource index or a maximum PUCCH resource index, etc., which is not limited here.

[0180] In this embodiment, the target uplink beam is determined based on the preset uplink beam, which may be a beam near the direction of the preset beam (such as the angle between the transmission direction and the transmission direction of the preset beam is less than a certain angle value) as the target uplink beam.

[0181] It should be noted that the above-mentioned third cell can be any cell that can send the above-mentioned beam failure recovery request message, for example: the above-mentioned third cell can be the first cell in the above-mentioned implementation mode two.

[0182] In an embodiment of the present invention, after the network side device receives the beam failure request message, the network side device may send a beam failure recovery request response message to the terminal. Optionally, after sending the beam failure recovery request message to the network side device, it includes: receiving the beam failure recovery request response message sent by the network side device, so that the terminal can update the faulty beam in time according to the beam failure recovery request response message, that is, switch to the replacement beam for data transmission to achieve fault recovery.

[0183] Among them, the above-mentioned receiving the beam failure recovery request response message sent by the network side device can be receiving the beam failure recovery request response (such as gNB response) message sent by the network side device in a cell of the first cell group, or can be receiving the beam failure recovery request response message sent by the network side device in a cell outside the first cell group, which is not limited here.

[0184] Optionally, the receiving of the beam failure recovery request response message sent by the network side device includes:

[0185] A beam failure recovery request response message sent by a network side device is received on a fourth cell, where the fourth cell includes any one of the following:

[0186] The primary cell to which the terminal is connected; or

[0187] A secondary cell within the first cell group, the second cell group, the third cell group, or the fourth cell group;

[0188] a secondary cell other than the first cell group, the second cell group, the third cell group or the fourth cell group among the cells to which the terminal is connected; or

[0189] a preset cell in the fifth cell group;

[0190] Among them, the second cell group is configured with a candidate beam RS resource group; the third cell group is: when the main cell and the secondary cell connected to the terminal are in the same frequency band, the cell group where the first cell is located, and the first cell is the cell used to send a beam failure recovery request message; the fourth cell group is: when the main cell and the secondary cell are in different frequency bands, the cell group where the first cell is located.

[0191] It should be noted that the second cell group is the second cell group in the first implementation mode, the third cell group is the third cell group in the second implementation mode, and the fourth cell group is the fourth cell group in the second implementation mode.

[0192] Among them, the above-mentioned fifth cell group can be the same cell group as the above-mentioned first cell group, second cell group, third cell group or fourth cell group, or the fifth cell group can also be a cell group different from the first cell group, second cell group, third cell group or fourth cell group; or, the fifth cell group has some cells in common with the first cell group, second cell group, third cell group or fourth cell group, which is not limited here.

[0193] It should be noted that the various optional implementation modes introduced in the embodiments of the present invention may be implemented in combination with each other or may be implemented separately, and the embodiments of the present invention are not limited to this.

[0194] In an embodiment of the present invention, whether a beam failure occurs in the first cell group is determined based on a beam failure detection reference signal BFD RS resource group, wherein the BFD RS resource group is configured in the first cell group; when a beam failure occurs in the first cell group, a beam failure recovery request message is sent to a network side device. In this way, in a multi-carrier system, if a beam failure occurs in the first cell group, the terminal can send a beam failure recovery request message to the network side device in a timely manner, thereby improving the communication performance of the terminal and reducing the resource overhead of configuring RS resources and transmitting beam failure recovery request messages.

[0195] See also Figure 3 , Figure 3 FIG. 2 is a flowchart of a beam failure processing method provided by an embodiment of the present invention. The beam failure processing method of this embodiment can be applied to a network side device. Figure 3 As shown, the beam failure processing method of this embodiment may include the following steps:

[0196] Step 301: receiving a beam failure recovery request message sent by a terminal;

[0197] Among them, the beam failure recovery request message is: the terminal determines the message sent when a beam failure occurs in the first cell group based on the BFD RS resource group; the BFD RS resource group is configured in the first cell group.

[0198] Optionally, before the beam failure recovery request message sent by the receiving terminal, the method further includes:

[0199] First configuration information is sent to the terminal, where the first configuration information is used to configure the BFD RS resource group in the first cell group.

[0200] Optionally, the first configuration information includes a cell index of a cell where the BFD RS resource group is located.

[0201] Optionally, before receiving the beam failure recovery request message sent by the terminal, the following is also included:

[0202] Send second configuration information to the terminal, where the second configuration information is used to configure the candidate beam RS resource group in the second cell group.

[0203] Optionally, the beam failure recovery request message sent by the receiving terminal includes:

[0204] A beam failure recovery request message sent by a terminal is received on a first cell, where the first cell is a cell to which the terminal is connected.

[0205] Optionally, when a primary cell and a secondary cell to which the terminal is connected are in the same frequency band, the first cell includes any one of the following:

[0206] Main cell;

[0207] A preset cell in the first cell group or the second cell group;

[0208] A secondary cell outside the first cell group or the second cell group in the cell to which the terminal is connected;

[0209] A preset cell in the third cell group.

[0210] Optionally, when the first cell is a secondary cell outside the first cell group or the second cell group in the cell to which the terminal is connected, the first cell satisfies at least one of the following:

[0211] is a secondary cell associated with the first cell group or the second cell group; or,

[0212] is a secondary cell indicated by the network side; or,

[0213] A secondary cell selected from multiple secondary cells configured by the network side; or,

[0214] It is a secondary cell in the same frequency band as the first cell group or the second cell group, or it is a secondary cell in a different frequency band from the first cell group or the second cell group.

[0215] Optionally, the primary cell to which the terminal is connected is in a first frequency range and the secondary cell is in a second frequency range, or the primary cell and the secondary cell to which the terminal is connected are in different frequency bands in the second frequency range, wherein the first frequency range is lower than the second frequency range;

[0216] The first area includes any of the following:

[0217] Main cell;

[0218] A cell in the same frequency band as the first cell group or the second cell group, wherein the second cell group is configured with a candidate beam RS resource group;

[0219] A secondary cell located in a frequency band other than the frequency band in which the first cell group or the second cell group is located in the second frequency range;

[0220] The preset cell in the fourth cell group.

[0221] Optionally, the beam failure recovery request message sent by the receiving terminal includes:

[0222] Receiving, on the second cell, a beam failure recovery request message sent by the terminal in a second manner;

[0223] The second cell is a cell to which the terminal is connected.

[0224] Optionally, the second method includes any of the following:

[0225] receiving a beam failure recovery request message on a physical random access channel PRACH resource;

[0226] Receiving a beam failure recovery request message on a physical uplink control channel PUCCH resource;

[0227] A beam failure recovery request message is received at a medium access control MAC control element CE.

[0228] Optionally, in the case where the second mode is receiving a beam failure recovery request message on a PRACH resource, the PRACH resource is a non-contention PRACH resource and / or a contention PRACH resource;

[0229] The receiving, in the second cell, a beam failure recovery request message sent by the terminal in the second manner includes:

[0230] Receiving a beam failure recovery request message on a contention-free PRACH resource; or,

[0231] In case of failure to receive a beam failure recovery request message on a non-contention PRACH resource, receiving a beam failure recovery request message on a contention PRACH resource; or,

[0232] In the case where the target candidate beam RS resource is not determined, receiving a beam failure recovery request message in the competition PRACH resource; or,

[0233] In the case where the PRACH resources are only contention PRACH resources, a beam failure recovery request message is received on the contention PRACH resources.

[0234] Optionally, the contention-free PRACH resources are associated with the target candidate beam RS resources.

[0235] Optionally, when the primary cell and the secondary cell to which the terminal is connected are in different frequency bands, the PRACH resources are PRACH resources configured on the frequency band where the first cell group is located.

[0236] Optionally, in the second method, when a beam failure recovery request message is received on a PUCCH resource or a beam failure recovery request message is received on a MAC CE, the beam failure recovery request message carries first information and / or second information, wherein the first information is used to indicate that a beam failure occurs in the first cell group, and the second information is used to indicate information of a candidate beam.

[0237] Optionally, the candidate beam information includes target candidate beam RS resource information.

[0238] Optionally, the second information includes at least one of the following:

[0239] The index of the target candidate beam RS resource;

[0240] Layer 1 reference signal received power L1-RSRP of the target candidate beam RS resource;

[0241] The layer 1 signal to interference plus noise ratio L1-SINR of the target candidate beam RS resource.

[0242] Optionally, before the receiving, on the second cell, a beam failure recovery request message sent by the terminal in the second manner, further includes:

[0243] Send third configuration information to the terminal, where the third configuration information is used to configure channel resources used by the second mode for the terminal on the second cell.

[0244] Optionally, when the primary cell and the secondary cell to which the terminal is connected are in different frequency bands, and the second method is to receive a beam failure recovery request message on a physical uplink control channel PUCCH resource, the third configuration information is used to configure PUCCH resources on the primary cell.

[0245] Optionally, the beam failure recovery request message sent by the receiving terminal includes:

[0246] A beam failure recovery request message sent by the terminal is received on a target uplink beam, wherein the target uplink beam is at least one uplink beam on a third cell, and the third cell is a cell to which the terminal is connected.

[0247] Optionally, after the beam failure recovery request message sent by the receiving terminal, the method further includes:

[0248] Based on the beam failure recovery request message, a beam failure recovery request response message is sent to the terminal.

[0249] Optionally, the sending of a beam failure recovery request response message to the terminal includes:

[0250] Sending a beam failure recovery request response message to the terminal on the fourth cell, where the fourth cell includes any of the following:

[0251] The primary cell to which the terminal is connected; or

[0252] A secondary cell within the first cell group, the second cell group, the third cell group, or the fourth cell group;

[0253] a secondary cell other than the first cell group, the second cell group, the third cell group or the fourth cell group among the cells to which the terminal is connected; or

[0254] a preset cell in the fifth cell group;

[0255] Among them, the second cell group is configured with a candidate beam RS resource group; the third cell group is: when the main cell and the secondary cell connected to the terminal are in the same frequency band, the cell group where the first cell is located, and the first cell is the cell used to send a beam failure recovery request message; the fourth cell group is: when the main cell and the secondary cell are in different frequency bands, the cell group where the first cell is located.

[0256] It should be noted that this embodiment is Figure 2 The implementation method of the network side device corresponding to the method embodiment can refer to the relevant description in the above method embodiment, and the same beneficial effects can be achieved. In order to avoid repeated description, it will not be repeated here.

[0257] See also Figure 4 , Figure 4 This is one of the structural diagrams of the terminal provided by the embodiment of the present invention. Figure 4 As shown, the terminal 400 includes:

[0258] A first determination module 401 is configured to determine whether a beam failure occurs in a first cell group according to a beam failure detection reference signal BFD RS resource group, wherein the BFD RS resource group is configured in the first cell group;

[0259] The sending module 402 is used to send a beam failure recovery request message to the network side device when a beam failure occurs in the first cell group.

[0260] Optionally, the first cell group includes:

[0261] Some or all secondary cells in the same frequency band; or,

[0262] A primary cell and at least one secondary cell in the same frequency band.

[0263] Optionally, the BFD RS resource group is configured in N preset cells in the first cell group, where N is a positive integer, wherein:

[0264] The N preset cells are part of the cells in the first cell group, and each preset cell is a cell with a preset cell index; or,

[0265] The N preset cells are all cells in the first cell group; or,

[0266] In the case where the first cell group includes a primary cell, the N preset cells are the primary cells.

[0267] Optionally, when the N preset cells are some of the cells or all of the cells, and N is greater than 1, the first determining module 401 is specifically configured to:

[0268] In the case that beam failure occurs in all cells of the N preset cells, determining that beam failure occurs in the first cell group; or,

[0269] When beam failure occurs in a first number of cells among the N preset cells, it is determined that beam failure occurs in the first cell group.

[0270] Optionally, the terminal 400 further includes:

[0271] The first receiving module is used to receive first configuration information sent by a network side device, where the first configuration information is used to configure the BFD RS resource group in the first cell group.

[0272] Optionally, the first configuration information includes a cell index of a cell where the BFD RS resource group is located.

[0273] Optionally, the terminal 400 further includes:

[0274] A second determination module is used to determine a target candidate beam RS resource according to the candidate beam RS resource group;

[0275] Among them, the beam failure recovery request message is used to indicate the information of the target candidate beam RS resources; the candidate beam RS resource group is configured in the second cell group.

[0276] Optionally, the terminal 400 further includes:

[0277] The second receiving module is used to receive second configuration information sent by a network side device, where the second configuration information is used to configure the candidate beam RS resource group in the second cell group.

[0278] Optionally, the sending module 401 is specifically configured to:

[0279] A beam failure recovery request message is sent to a network side device on a first cell, where the first cell is a cell to which the terminal is connected.

[0280] Optionally, when a primary cell and a secondary cell to which the terminal is connected are in the same frequency band, the first cell includes any one of the following:

[0281] The primary cell;

[0282] a preset cell within the first cell group or the second cell group, wherein the second cell group is configured with a candidate beam RS resource group;

[0283] A secondary cell outside the first cell group or the second cell group among the cells to which the terminal is connected;

[0284] A preset cell in the third cell group.

[0285] Optionally, when the first cell is a secondary cell outside the first cell group or the second cell group in the cell to which the terminal is connected, the first cell satisfies at least one of the following:

[0286] is a secondary cell associated with the first cell group or the second cell group; or,

[0287] is a secondary cell indicated by the network side; or,

[0288] A secondary cell selected from multiple secondary cells configured by the network side; or,

[0289] It is a secondary cell in the same frequency band as the first cell group or the second cell group, or it is a secondary cell in a different frequency band from the first cell group or the second cell group.

[0290] Optionally, a primary cell to which the terminal is connected is in a first frequency range and a secondary cell is in a second frequency range, or a primary cell and a secondary cell to which the terminal is connected are in different frequency bands in the second frequency range, wherein the first frequency range is lower than the second frequency range;

[0291] The first cell includes any of the following:

[0292] The primary cell;

[0293] A cell in the same frequency band as the first cell group or the second cell group, wherein the second cell group is a cell group configured with a candidate beam RS resource group;

[0294] a secondary cell located in a frequency band in the second frequency range except a frequency band in which the first cell group or the second cell group is located;

[0295] A preset cell in the fourth cell group.

[0296] Optionally, the sending module 401 is specifically configured to:

[0297] Sending a beam failure recovery request message to the network side device in the second cell by using the first method;

[0298] The second cell is a cell to which the terminal is connected.

[0299] Optionally, the first method includes any one of the following:

[0300] Sending a beam failure recovery request message on a physical random access channel PRACH resource;

[0301] Sending a beam failure recovery request message on a physical uplink control channel PUCCH resource;

[0302] The beam failure recovery request message is sent on the medium access control MAC control element CE.

[0303] Optionally, when the first manner is to send a beam failure recovery request message on the PRACH resource, the PRACH resource is a non-contention PRACH resource and / or a contention PRACH resource;

[0304] The sending module 401 is specifically used for:

[0305] Sending a beam failure recovery request message on the contention-free PRACH resource; or,

[0306] In case that sending the beam failure recovery request message on the non-contention PRACH resource fails, sending the beam failure recovery request message on the contention PRACH resource; or,

[0307] In the case where the target candidate beam RS resource is not determined, sending the beam failure recovery request message on the contention PRACH resource; or,

[0308] In the case where the PRACH resource is only a contention PRACH resource, the beam failure recovery request message is sent on the contention PRACH resource.

[0309] Optionally, the non-contention PRACH resources are associated with the target candidate beam RS resources.

[0310] Optionally, when the primary cell and the secondary cell to which the terminal is connected are in different frequency bands, the PRACH resources are PRACH resources configured on the frequency band in which the first cell group is located.

[0311] Optionally, when the first method is to send a beam failure recovery request message on the PUCCH resource or to send a beam failure recovery request message on the MAC CE, the beam failure recovery request message carries first information and / or second information, wherein the first information is used to indicate that a beam failure occurs in the first cell group, and the second information is used to indicate information of a candidate beam.

[0312] Optionally, the candidate beam information includes target candidate beam RS resource information.

[0313] Optionally, the second information includes at least one of the following:

[0314] The index of the target candidate beam RS resource;

[0315] The layer 1 reference signal received power L1-RSRP of the target candidate beam RS resource;

[0316] The layer 1 signal to interference plus noise ratio L1-SINR of the target candidate beam RS resource.

[0317] Optionally, the terminal 400 further includes:

[0318] The third receiving module is used to receive third configuration information sent by a network side device, wherein the third configuration information is used to configure the channel resources used by the first method for the terminal in the second cell.

[0319] Optionally, when the primary cell and the secondary cell to which the terminal is connected are in different frequency bands, and the first method is to send a beam failure recovery request message on a physical uplink control channel PUCCH resource, the third configuration information is used to configure PUCCH resources on the primary cell.

[0320] Optionally, the sending module 401 is specifically configured to:

[0321] A beam failure recovery request message is sent to a network side device on a target uplink beam, wherein the target uplink beam is at least one uplink beam on a third cell, and the third cell is a cell to which the terminal is connected.

[0322] Optionally, the terminal 400 further includes:

[0323] The third determining module is configured to determine the target uplink beam based on a preset uplink beam, wherein the preset uplink beam includes at least one of the following:

[0324] The beam of the uplink channel and / or uplink reference signal most recently sent by the terminal;

[0325] The beam of the most recent PUCCH transmission by the terminal;

[0326] A beam of a preset PUCCH on a preset cell and / or a preset bandwidth part BWP, and the preset PUCCH has a preset PUCCH resource index.

[0327] Optionally, the terminal 400 further includes:

[0328] The fourth receiving module is used to receive the beam failure recovery request response message sent by the network side device.

[0329] Optionally, the fourth receiving module is specifically configured to:

[0330] Receiving a beam failure recovery request response message sent by a network side device on a fourth cell, wherein the fourth cell includes any one of the following:

[0331] The primary cell to which the terminal is connected; or

[0332] A secondary cell within the first cell group, the second cell group, the third cell group or the fourth cell group;

[0333] A secondary cell other than the first cell group, the second cell group, the third cell group or the fourth cell group among the cells to which the terminal is connected; or

[0334] a preset cell in the fifth cell group;

[0335] Among them, the second cell group is configured with a candidate beam RS resource group; the third cell group is: when the main cell and the secondary cell connected to the terminal are in the same frequency band, the cell group where the first cell is located, and the first cell is the cell used to send the beam failure recovery request message; the fourth cell group is: when the main cell and the secondary cell are in different frequency bands, the cell group where the first cell is located.

[0336] Terminal 400 can implement the present invention Figure 2 The various processes in the method embodiment achieve the same beneficial effects and will not be described again here to avoid repetition.

[0337] See also Figure 5 , Figure 5 This is one of the structural diagrams of the network side device provided by the embodiment of the present invention. Figure 5As shown, the network side device 500 includes:

[0338] The receiving module 501 is used to receive a beam failure recovery request message sent by a terminal;

[0339] Among them, the beam failure recovery request message is: the terminal determines the message sent when a beam failure occurs in the first cell group based on the BFD RS resource group; the BFD RS resource group is configured in the first cell group.

[0340] Optionally, the network side device 500 further includes:

[0341] The first sending module is used to send first configuration information to the terminal, where the first configuration information is used to configure the BFD RS resource group in the first cell group.

[0342] Optionally, the first configuration information includes a cell index of a cell where the BFD RS resource group is located.

[0343] Optionally, the network side device 500 further includes:

[0344] The second sending module is used to send second configuration information to the terminal, and the second configuration information is used to configure the candidate beam RS resource group in the second cell group.

[0345] Optionally, the receiving module 501 is specifically configured to:

[0346] A beam failure recovery request message sent by a terminal is received on a first cell, where the first cell is a cell to which the terminal is connected.

[0347] Optionally, when a primary cell and a secondary cell to which the terminal is connected are in the same frequency band, the first cell includes any one of the following:

[0348] The primary cell;

[0349] a preset cell within the first cell group or the second cell group, wherein the second cell group is configured with a candidate beam RS resource group;

[0350] A secondary cell outside the first cell group or the second cell group among the cells to which the terminal is connected;

[0351] A preset cell in the third cell group.

[0352] Optionally, when the first cell is a secondary cell outside the first cell group or the second cell group in the cell to which the terminal is connected, the first cell satisfies at least one of the following:

[0353] is a secondary cell associated with the first cell group or the second cell group; or,

[0354] is a secondary cell indicated by the network side; or

[0355] A secondary cell selected from multiple secondary cells configured by the network side; or,

[0356] It is a secondary cell in the same frequency band as the first cell group or the second cell group, or it is a secondary cell in a different frequency band from the first cell group or the second cell group.

[0357] Optionally, a primary cell to which the terminal is connected is in a first frequency range and a secondary cell is in a second frequency range, or a primary cell and a secondary cell to which the terminal is connected are in different frequency bands in the second frequency range, wherein the first frequency range is lower than the second frequency range;

[0358] The first cell includes any of the following:

[0359] The primary cell;

[0360] A cell in the same frequency band as the first cell group or the second cell group, wherein the second cell group is a cell group configured with a candidate beam RS resource group;

[0361] a secondary cell located in a frequency band in the second frequency range except a frequency band in which the first cell group or the second cell group is located;

[0362] The preset cell in the fourth cell group.

[0363] Optionally, the receiving module 501 is specifically configured to:

[0364] Receiving, on the second cell, a beam failure recovery request message sent by the terminal in a second manner;

[0365] The second cell is a cell to which the terminal is connected.

[0366] Optionally, the second method includes any one of the following:

[0367] receiving a beam failure recovery request message on a physical random access channel PRACH resource;

[0368] Receiving a beam failure recovery request message on a physical uplink control channel PUCCH resource;

[0369] A beam failure recovery request message is received at a medium access control MAC control element CE.

[0370] Optionally, when the second mode is receiving a beam failure recovery request message on the PRACH resource, the PRACH resource is a non-contention PRACH resource and / or a contention PRACH resource;

[0371] The receiving module 501 is specifically used for:

[0372] receiving the beam failure recovery request message on the contention-free PRACH resource; or,

[0373] In case that receiving the beam failure recovery request message on the non-contention PRACH resource fails, receiving the beam failure recovery request message on the contention PRACH resource; or,

[0374] In the case where the target candidate beam RS resource is not determined, receiving the beam failure recovery request message on the contention PRACH resource; or,

[0375] In a case where the PRACH resource is only a contention PRACH resource, the beam failure recovery request message is received on the contention PRACH resource.

[0376] Optionally, the non-contention PRACH resources are associated with target candidate beam RS resources.

[0377] Optionally, when the primary cell and the secondary cell to which the terminal is connected are in different frequency bands, the PRACH resources are PRACH resources configured on the frequency band in which the first cell group is located.

[0378] Optionally, when the second method is receiving a beam failure recovery request message on the PUCCH resource or receiving a beam failure recovery request message on the MAC CE, the beam failure recovery request message carries first information and / or second information, wherein the first information is used to indicate that a beam failure occurs in the first cell group, and the second information is used to indicate information of a candidate beam.

[0379] Optionally, the candidate beam information includes target candidate beam RS resource information.

[0380] Optionally, the second information includes at least one of the following:

[0381] The index of the target candidate beam RS resource;

[0382] The layer 1 reference signal received power L1-RSRP of the target candidate beam RS resource;

[0383] The layer 1 signal to interference plus noise ratio L1-SINR of the target candidate beam RS resource.

[0384] Optionally, the network side device 500 further includes:

[0385] The third sending module is used to send third configuration information to the terminal, wherein the third configuration information is used to configure channel resources used by the second mode for the terminal in the second cell.

[0386] Optionally, when the primary cell and the secondary cell to which the terminal is connected are in different frequency bands, and the second method is to receive a beam failure recovery request message on a physical uplink control channel PUCCH resource, the third configuration information is used to configure PUCCH resources on the primary cell.

[0387] Optionally, the receiving module 501 is specifically configured to:

[0388] A beam failure recovery request message sent by a terminal is received on a target uplink beam, wherein the target uplink beam is at least one uplink beam on a third cell, and the third cell is a cell to which the terminal is connected.

[0389] Optionally, the network side device 500 further includes:

[0390] A fourth sending module is used to send a beam failure recovery request response message to the terminal based on the beam failure recovery request message.

[0391] Optionally, the fourth sending module is specifically configured to:

[0392] Sending a beam failure recovery request response message to the terminal on a fourth cell, where the fourth cell includes any one of the following:

[0393] The primary cell to which the terminal is connected; or

[0394] A secondary cell within the first cell group, the second cell group, the third cell group or the fourth cell group;

[0395] A secondary cell other than the first cell group, the second cell group, the third cell group or the fourth cell group among the cells to which the terminal is connected; or

[0396] a preset cell in the fifth cell group;

[0397] Among them, the second cell group is configured with a candidate beam RS resource group; the third cell group is: when the main cell and the secondary cell connected to the terminal are in the same frequency band, the cell group where the first cell is located, and the first cell is the cell used to send the beam failure recovery request message; the fourth cell group is: when the main cell and the secondary cell are in different frequency bands, the cell group where the first cell is located.

[0398] The network side device 500 can implement the present invention Figure 3 The various processes in the method embodiment achieve the same beneficial effects and will not be described again here to avoid repetition.

[0399] Please refer to Figure 6 , Figure 6 FIG. 2 is a second structural diagram of a terminal provided by an embodiment of the present invention, and the terminal may be a hardware structural diagram of a terminal for implementing various embodiments of the present invention. Figure 6 As shown, the terminal 600 includes but is not limited to: a radio frequency unit 601, a network module 602, an audio output unit 603, an input unit 604, a sensor 605, a display unit 606, a user input unit 607, an interface unit 608, a memory 609, a processor 610, and a power supply 611. Those skilled in the art can understand that Figure 6 The terminal structure shown in the figure does not constitute a limitation on the terminal, and the terminal may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently. In the embodiment of the present invention, the terminal includes but is not limited to a mobile phone, a tablet computer, a laptop computer, a PDA, a vehicle-mounted terminal, a wearable device, and a pedometer.

[0400] The processor 610 is configured to: determine whether a beam failure occurs in a first cell group according to a beam failure detection reference signal BFD RS resource group, wherein the BFD RS resource group is configured in the first cell group;

[0401] The radio frequency unit 601 is used to: when a beam failure occurs in the first cell group, send a beam failure recovery request message to the network side device.

[0402] Optionally, the first cell group includes:

[0403] Some or all secondary cells in the same frequency band; or,

[0404] A primary cell and at least one secondary cell in the same frequency band.

[0405] Optionally, the BFD RS resource group is configured in N preset cells in the first cell group, where N is a positive integer, wherein:

[0406] The N preset cells are part of the cells in the first cell group, and each preset cell is a cell with a preset cell index; or,

[0407] The N preset cells are all cells in the first cell group; or,

[0408] In the case where the first cell group includes a primary cell, the N preset cells are the primary cells.

[0409] Optionally, when the N preset cells are some of the cells or all of the cells, and N is greater than 1, the processor 610 is specifically configured to:

[0410] In the case that beam failure occurs in all cells of the N preset cells, determining that beam failure occurs in the first cell group; or,

[0411] When beam failure occurs in a first number of cells among the N preset cells, it is determined that beam failure occurs in the first cell group.

[0412] Optionally, the radio frequency unit 601 is further configured to:

[0413] Receive first configuration information sent by a network side device, where the first configuration information is used to configure the BFD RS resource group in the first cell group.

[0414] Optionally, the first configuration information includes a cell index of a cell where the BFD RS resource group is located.

[0415] Optionally, the radio frequency unit 601 is further configured to:

[0416] Determine a target candidate beam RS resource according to the candidate beam RS resource group;

[0417] Among them, the beam failure recovery request message is used to indicate the information of the target candidate beam RS resources; the candidate beam RS resource group is configured in the second cell group.

[0418] Optionally, the radio frequency unit 601 is further configured to:

[0419] Receive second configuration information sent by a network side device, where the second configuration information is used to configure the candidate beam RS resource group in the second cell group.

[0420] Optionally, the radio frequency unit 601 is specifically configured to:

[0421] A beam failure recovery request message is sent to a network side device on a first cell, where the first cell is a cell to which the terminal is connected.

[0422] Optionally, when a primary cell and a secondary cell to which the terminal is connected are in the same frequency band, the first cell includes any one of the following:

[0423] The primary cell;

[0424] a preset cell within the first cell group or the second cell group, wherein the second cell group is configured with a candidate beam RS resource group;

[0425] A secondary cell outside the first cell group or the second cell group among the cells to which the terminal is connected;

[0426] A preset cell in the third cell group.

[0427] Optionally, when the first cell is a secondary cell outside the first cell group or the second cell group in the cell to which the terminal is connected, the first cell satisfies at least one of the following:

[0428] is a secondary cell associated with the first cell group or the second cell group; or,

[0429] is a secondary cell indicated by the network side; or

[0430] A secondary cell selected from multiple secondary cells configured by the network side; or,

[0431] It is a secondary cell in the same frequency band as the first cell group or the second cell group, or it is a secondary cell in a different frequency band from the first cell group or the second cell group.

[0432] Optionally, a primary cell to which the terminal is connected is in a first frequency range and a secondary cell is in a second frequency range, or a primary cell and a secondary cell to which the terminal is connected are in different frequency bands in the second frequency range, wherein the first frequency range is lower than the second frequency range;

[0433] The first cell includes any of the following:

[0434] The primary cell;

[0435] A cell in the same frequency band as the first cell group or the second cell group, wherein the second cell group is a cell group configured with a candidate beam RS resource group;

[0436] a secondary cell located in a frequency band in the second frequency range except a frequency band in which the first cell group or the second cell group is located;

[0437] The preset cell in the fourth cell group.

[0438] Optionally, the radio frequency unit 601 is specifically configured to:

[0439] Sending a beam failure recovery request message to the network side device in the second cell by using the first method;

[0440] The second cell is a cell to which the terminal is connected.

[0441] Optionally, the first method includes any one of the following:

[0442] Sending a beam failure recovery request message on a physical random access channel PRACH resource;

[0443] Sending a beam failure recovery request message on a physical uplink control channel PUCCH resource;

[0444] The beam failure recovery request message is sent on the medium access control MAC control element CE.

[0445] Optionally, when the first manner is to send a beam failure recovery request message on the PRACH resource, the PRACH resource is a non-contention PRACH resource and / or a contention PRACH resource;

[0446] The radio frequency unit 601 is specifically used for:

[0447] Sending a beam failure recovery request message on the contention-free PRACH resource; or,

[0448] In case that sending the beam failure recovery request message on the non-contention PRACH resource fails, sending the beam failure recovery request message on the contention PRACH resource; or,

[0449] In the case where the target candidate beam RS resource is not determined, sending the beam failure recovery request message on the contention PRACH resource; or,

[0450] In the case where the PRACH resource is only a contention PRACH resource, the beam failure recovery request message is sent on the contention PRACH resource.

[0451] Optionally, the non-contention PRACH resources are associated with the target candidate beam RS resources.

[0452] Optionally, when the primary cell and the secondary cell to which the terminal is connected are in different frequency bands, the PRACH resources are PRACH resources configured on the frequency band in which the first cell group is located.

[0453] Optionally, when the first method is to send a beam failure recovery request message on the PUCCH resource or to send a beam failure recovery request message on the MAC CE, the beam failure recovery request message carries first information and / or second information, wherein the first information is used to indicate that a beam failure occurs in the first cell group, and the second information is used to indicate information of a candidate beam.

[0454] Optionally, the candidate beam information includes target candidate beam RS resource information.

[0455] Optionally, the second information includes at least one of the following:

[0456] The index of the target candidate beam RS resource;

[0457] The layer 1 reference signal received power L1-RSRP of the target candidate beam RS resource;

[0458] The layer 1 signal to interference plus noise ratio L1-SINR of the target candidate beam RS resource.

[0459] Optionally, the radio frequency unit 601 is further configured to:

[0460] Receive third configuration information sent by a network side device, wherein the third configuration information is used to configure channel resources used by the first method for the terminal on the second cell.

[0461] Optionally, when the primary cell and the secondary cell to which the terminal is connected are in different frequency bands, and the first method is to send a beam failure recovery request message on a physical uplink control channel PUCCH resource, the third configuration information is used to configure PUCCH resources on the primary cell.

[0462] Optionally, the radio frequency unit 601 is specifically configured to:

[0463] A beam failure recovery request message is sent to a network side device on a target uplink beam, wherein the target uplink beam is at least one uplink beam on a third cell, and the third cell is a cell to which the terminal is connected.

[0464] Optionally, the processor 610 is further configured to:

[0465] The target uplink beam is determined based on a preset uplink beam, wherein the preset uplink beam includes at least one of the following:

[0466] The beam of the uplink channel and / or uplink reference signal most recently sent by the terminal;

[0467] The beam of the most recent PUCCH transmission by the terminal;

[0468] A beam of a preset PUCCH on a preset cell and / or a preset bandwidth part BWP, and the preset PUCCH has a preset PUCCH resource index.

[0469] Optionally, the radio frequency unit 601 is further configured to:

[0470] Receive the beam failure recovery request response message sent by the network side device.

[0471] Optionally, the radio frequency unit 601 is specifically configured to:

[0472] Receiving a beam failure recovery request response message sent by a network side device on a fourth cell, wherein the fourth cell includes any one of the following:

[0473] The primary cell to which the terminal is connected; or

[0474] A secondary cell within the first cell group, the second cell group, the third cell group or the fourth cell group;

[0475] A secondary cell other than the first cell group, the second cell group, the third cell group or the fourth cell group among the cells to which the terminal is connected; or

[0476] a preset cell in the fifth cell group;

[0477] Among them, the second cell group is configured with a candidate beam RS resource group; the third cell group is: when the main cell and the secondary cell connected to the terminal are in the same frequency band, the cell group where the first cell is located, and the first cell is the cell used to send the beam failure recovery request message; the fourth cell group is: when the main cell and the secondary cell are in different frequency bands, the cell group where the first cell is located.

[0478] It should be noted that the terminal 600 in this embodiment can implement the embodiment of the present invention. Figure 2 The various processes in the method embodiment, as well as the same beneficial effects achieved, are not described again here to avoid repetition.

[0479] It should be understood that in the embodiment of the present invention, the radio frequency unit 601 can be used for receiving and sending signals during information transmission or communication. Specifically, after receiving downlink data from the base station, it is sent to the processor 610 for processing; in addition, uplink data is sent to the base station. Generally, the radio frequency unit 601 includes but is not limited to an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc. In addition, the radio frequency unit 601 can also communicate with the network and other devices through a wireless communication system.

[0480] The terminal provides users with wireless broadband Internet access through the network module 602, such as helping users to send and receive emails, browse web pages, and access streaming media.

[0481] The audio output unit 603 can convert the audio data received by the RF unit 601 or the network module 602 or stored in the memory 609 into an audio signal and output it as sound. Moreover, the audio output unit 603 can also provide audio output related to a specific function performed by the terminal 600 (for example, a call signal reception sound, a message reception sound, etc.). The audio output unit 603 includes a speaker, a buzzer, a receiver, etc.

[0482] The input unit 604 is used to receive audio or video signals. The input unit 604 may include a graphics processor (GPU) 6041 and a microphone 6042, and the graphics processor 6041 processes the image data of a static picture or video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The processed image frame can be displayed on the display unit 606. The image frame processed by the graphics processor 6041 can be stored in the memory 609 (or other storage medium) or sent via the radio frequency unit 601 or the network module 602. The microphone 6042 can receive sound and can process such sound into audio data. The processed audio data can be converted into a format output that can be sent to a mobile communication base station via the radio frequency unit 601 in the case of a telephone call mode.

[0483] The terminal 600 also includes at least one sensor 605, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor and a proximity sensor, wherein the ambient light sensor can adjust the brightness of the display panel 6061 according to the brightness of the ambient light, and the proximity sensor can turn off the display panel 6061 and / or the backlight when the terminal 600 is moved to the ear. As a type of motion sensor, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), and can detect the magnitude and direction of gravity when stationary, which can be used to identify the terminal posture (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer, tapping), etc.; the sensor 605 can also include a fingerprint sensor, a pressure sensor, an iris sensor, a molecular sensor, a gyroscope, a barometer, a hygrometer, a thermometer, an infrared sensor, etc., which will not be repeated here.

[0484] The display unit 606 is used to display information input by the user or information provided to the user. The display unit 606 may include a display panel 6061, which may be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), or the like.

[0485] The user input unit 607 can be used to receive input digital or character information, and to generate key signal input related to the user settings and function control of the terminal. Specifically, the user input unit 607 includes a touch panel 6071 and other input devices 6072. The touch panel 6071, also known as a touch screen, can collect the user's touch operation on or near it (such as the user's operation on the touch panel 6071 or near the touch panel 6071 using any suitable object or accessory such as a finger, stylus, etc.). The touch panel 6071 may include two parts: a touch detection device and a touch controller. Among them, the touch detection device detects the user's touch orientation, detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into the contact point coordinates, and then sends it to the processor 610, receives the command sent by the processor 610 and executes it. In addition, the touch panel 6071 can be implemented in various types such as resistive, capacitive, infrared and surface acoustic waves. In addition to the touch panel 6071, the user input unit 607 may also include other input devices 6072. Specifically, other input devices 6072 may include but are not limited to a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which will not be described in detail here.

[0486] Furthermore, the touch panel 6071 may be overlaid on the display panel 6061. When the touch panel 6071 detects a touch operation on or near it, it is transmitted to the processor 610 to determine the type of touch event. Then, the processor 610 provides corresponding visual output on the display panel 6061 according to the type of touch event. Figure 6 In the embodiment, the touch panel 6071 and the display panel 6061 are used as two independent components to implement the input and output functions of the terminal. However, in some embodiments, the touch panel 6071 and the display panel 6061 can be integrated to implement the input and output functions of the terminal, which is not limited here.

[0487] The interface unit 608 is an interface for connecting an external device to the terminal 600. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device with an identification module, an audio input / output (I / O) port, a video I / O port, a headphone port, etc. The interface unit 608 may be used to receive input (e.g., data information, power, etc.) from an external device and transmit the received input to one or more elements in the terminal 600 or may be used to transmit data between the terminal 600 and an external device.

[0488] The memory 609 can be used to store software programs and various data. The memory 609 can mainly include a program storage area and a data storage area, wherein the program storage area can store an operating system, an application required for at least one function (such as a sound playback function, an image playback function, etc.), etc.; the data storage area can store data created according to the use of the mobile phone (such as audio data, a phone book, etc.), etc. In addition, the memory 609 can include a high-speed random access memory, and can also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other volatile solid-state storage devices.

[0489] The processor 610 is the control center of the terminal. It uses various interfaces and lines to connect various parts of the entire terminal. It executes various functions of the terminal and processes data by running or executing software programs and / or modules stored in the memory 609, and calling data stored in the memory 609, so as to monitor the terminal as a whole. The processor 610 may include one or more processing units; preferably, the processor 610 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, and application programs, and the modem processor mainly processes wireless communications. It is understandable that the above-mentioned modem processor may not be integrated into the processor 610.

[0490] The terminal 600 may also include a power supply 611 (such as a battery) for supplying power to various components. Preferably, the power supply 611 may be logically connected to the processor 610 through a power management system, thereby implementing functions such as charging, discharging, and power consumption management through the power management system.

[0491] In addition, the terminal 600 includes some functional modules not shown, which will not be described in detail here.

[0492] Preferably, an embodiment of the present invention further provides a terminal, including a processor 610, a memory 609, and a computer program stored in the memory 609 and executable on the processor 610, wherein the computer program is executed by the processor 610 to implement the above Figure 3 The various processes of the method embodiments can achieve the same technical effect, and will not be described again here to avoid repetition.

[0493] See also Figure 7 , Figure 7 This is the second structural diagram of the network side device provided by the embodiment of the present invention, such as Figure 7 As shown, the network side device 700 includes: a processor 701, a memory 702, a user interface 703, a transceiver 704 and a bus interface.

[0494] In this embodiment of the present invention, the network side device 700 further includes: a computer program stored in the memory 702 and executable on the processor 701. When the computer program is executed by the processor 701, the transceiver 704 is configured to:

[0495] A beam failure recovery request message sent by a receiving terminal;

[0496] Among them, the beam failure recovery request message is: the terminal determines the message sent when a beam failure occurs in the first cell group based on the BFD RS resource group; the BFD RS resource group is configured in the first cell group.

[0497] Optionally, the transceiver 704 is further configured to:

[0498] Sending first configuration information to the terminal, where the first configuration information is used to configure the BFD RS resource group in the first cell group.

[0499] Optionally, the first configuration information includes a cell index of a cell where the BFD RS resource group is located.

[0500] Optionally, the transceiver 704 is further configured to:

[0501] Send second configuration information to the terminal, where the second configuration information is used to configure the candidate beam RS resource group in the second cell group.

[0502] Optionally, the transceiver 704 is specifically configured to:

[0503] A beam failure recovery request message sent by a terminal is received on a first cell, where the first cell is a cell to which the terminal is connected.

[0504] Optionally, when a primary cell and a secondary cell to which the terminal is connected are in the same frequency band, the first cell includes any one of the following:

[0505] The primary cell;

[0506] a preset cell within the first cell group or the second cell group, wherein the second cell group is configured with a candidate beam RS resource group;

[0507] A secondary cell outside the first cell group or the second cell group among the cells to which the terminal is connected;

[0508] A preset cell in the third cell group.

[0509] Optionally, when the first cell is a secondary cell outside the first cell group or the second cell group in the cell to which the terminal is connected, the first cell satisfies at least one of the following:

[0510] is a secondary cell associated with the first cell group or the second cell group; or,

[0511] is a secondary cell indicated by the network side; or,

[0512] A secondary cell selected from multiple secondary cells configured by the network side; or,

[0513] It is a secondary cell in the same frequency band as the first cell group or the second cell group, or it is a secondary cell in a different frequency band from the first cell group or the second cell group.

[0514] Optionally, a primary cell to which the terminal is connected is in a first frequency range and a secondary cell is in a second frequency range, or a primary cell and a secondary cell to which the terminal is connected are in different frequency bands in the second frequency range, wherein the first frequency range is lower than the second frequency range;

[0515] The first cell includes any of the following:

[0516] The primary cell;

[0517] A cell in the same frequency band as the first cell group or the second cell group, wherein the second cell group is a cell group configured with a candidate beam RS resource group;

[0518] a secondary cell located in a frequency band in the second frequency range except a frequency band in which the first cell group or the second cell group is located;

[0519] A preset cell in the fourth cell group.

[0520] Optionally, the transceiver 704 is specifically configured to:

[0521] Receiving, on the second cell, a beam failure recovery request message sent by the terminal in a second manner;

[0522] The second cell is a cell to which the terminal is connected.

[0523] Optionally, the second method includes any one of the following:

[0524] receiving a beam failure recovery request message on a physical random access channel PRACH resource;

[0525] Receiving a beam failure recovery request message on a physical uplink control channel PUCCH resource;

[0526] A beam failure recovery request message is received at a medium access control MAC control element CE.

[0527] Optionally, when the second mode is receiving a beam failure recovery request message on the PRACH resource, the PRACH resource is a non-contention PRACH resource and / or a contention PRACH resource;

[0528] The transceiver 704 is specifically used for:

[0529] receiving the beam failure recovery request message on the contention-free PRACH resource; or,

[0530] In case that receiving the beam failure recovery request message on the non-contention PRACH resource fails, receiving the beam failure recovery request message on the contention PRACH resource; or,

[0531] In the case where the target candidate beam RS resource is not determined, receiving the beam failure recovery request message on the contention PRACH resource; or,

[0532] In a case where the PRACH resource is only a contention PRACH resource, the beam failure recovery request message is received on the contention PRACH resource.

[0533] Optionally, the non-contention PRACH resources are associated with target candidate beam RS resources.

[0534] Optionally, when the primary cell and the secondary cell to which the terminal is connected are in different frequency bands, the PRACH resources are PRACH resources configured on the frequency band in which the first cell group is located.

[0535] Optionally, when the second method is receiving a beam failure recovery request message on the PUCCH resource or receiving a beam failure recovery request message on the MAC CE, the beam failure recovery request message carries first information and / or second information, wherein the first information is used to indicate that a beam failure occurs in the first cell group, and the second information is used to indicate information of a candidate beam.

[0536] Optionally, the candidate beam information includes target candidate beam RS resource information.

[0537] Optionally, the second information includes at least one of the following:

[0538] The index of the target candidate beam RS resource;

[0539] The layer 1 reference signal received power L1-RSRP of the target candidate beam RS resource;

[0540] The layer 1 signal to interference plus noise ratio L1-SINR of the target candidate beam RS resource.

[0541] Optionally, the transceiver 704 is further configured to:

[0542] Send third configuration information to the terminal, wherein the third configuration information is used to configure channel resources used by the second mode for the terminal on the second cell.

[0543] Optionally, when the primary cell and the secondary cell to which the terminal is connected are in different frequency bands, and the second method is to receive a beam failure recovery request message on a physical uplink control channel PUCCH resource, the third configuration information is used to configure PUCCH resources on the primary cell.

[0544] Optionally, the transceiver 704 is specifically configured to:

[0545] A beam failure recovery request message sent by a terminal is received on a target uplink beam, wherein the target uplink beam is at least one uplink beam on a third cell, and the third cell is a cell to which the terminal is connected.

[0546] Optionally, the transceiver 704 is further configured to:

[0547] Based on the beam failure recovery request message, a beam failure recovery request response message is sent to the terminal.

[0548] Optionally, the transceiver 704 is specifically configured to:

[0549] Sending a beam failure recovery request response message to the terminal on a fourth cell, where the fourth cell includes any one of the following:

[0550] The primary cell to which the terminal is connected; or

[0551] A secondary cell within the first cell group, the second cell group, the third cell group or the fourth cell group;

[0552] A secondary cell other than the first cell group, the second cell group, the third cell group or the fourth cell group among the cells to which the terminal is connected; or

[0553] a preset cell in the fifth cell group;

[0554] Among them, the second cell group is configured with a candidate beam RS resource group; the third cell group is: when the main cell and the secondary cell connected to the terminal are in the same frequency band, the cell group where the first cell is located, and the first cell is the cell used to send the beam failure recovery request message; the fourth cell group is: when the main cell and the secondary cell are in different frequency bands, the cell group where the first cell is located.

[0555] exist Figure 7In the embodiment, the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 701 and various circuits of memory represented by memory 702 are linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface provides an interface. The transceiver 704 may be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium. For different user devices, the user interface 703 may also be an interface capable of externally and internally connecting required devices, and the connected devices include but are not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.

[0556] The processor 701 is responsible for managing the bus architecture and general processing, and the memory 702 can store data used by the processor 701 when performing operations.

[0557] The network side device 700 can implement the above Figure 3 To avoid repetition, the various processes implemented by the network-side device in the method embodiment will not be described here.

[0558] The embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, which implements the above-mentioned Figure 2 or Figure 3 The various processes of the method embodiment can achieve the same technical effect, and are not described here to avoid repetition. The computer-readable storage medium is, for example, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0559] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0560] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present invention, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, a magnetic disk, or an optical disk), and includes a number of instructions for enabling a terminal (which can be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to execute the methods described in each embodiment of the present invention.

[0561] The embodiments of the present invention are described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementation modes, which are merely illustrative rather than restrictive. Under the guidance of the present invention, ordinary technicians in this field can also make many forms without departing from the scope of protection of the present invention and the claims, all of which are within the protection of the present invention.

Claims

1. A beam failure processing method, applied to a terminal, characterized in that: The method comprises: Determine whether a beam failure occurs in a first cell group according to a beam failure detection reference signal BFD RS resource group, wherein the BFD RS resource group is configured in the first cell group; In the event of a beam failure in the first cell group, sending a beam failure recovery request message to a network side device; The BFD RS resource group is configured in N preset cells in the first cell group, where N is a positive integer and is greater than 1; The N preset cells are part of the cells in the first cell group, and each preset cell is a cell with a preset cell index; or, The N preset cells are all cells in the first cell group; The determining whether beam failure occurs in the first cell group includes: In the case that beam failure occurs in all cells of the N preset cells, determining that beam failure occurs in the first cell group; or, When beam failure occurs in a first number of cells among the N preset cells, it is determined that beam failure occurs in the first cell group.

2. The method according to claim 1, characterized in that: The first cell group includes: Some or all secondary cells in the same frequency band; or, A primary cell and at least one secondary cell in the same frequency band.

3. The method according to any one of claims 1 to 2, characterized in that Before determining whether beam failure occurs in the first cell group according to the BFD RS resource group, the method further includes: Receive first configuration information sent by a network side device, where the first configuration information is used to configure the BFD RS resource group in the first cell group.

4. The method according to claim 3, characterized in that The first configuration information includes a cell index of a cell where the BFD RS resource group is located.

5. The method according to claim 1, characterized in that Before sending the beam failure recovery request message to the network side device, the method further includes: Determine a target candidate beam RS resource according to the candidate beam RS resource group; Among them, the beam failure recovery request message is used to indicate the information of the target candidate beam RS resources; the candidate beam RS resource group is configured in the second cell group.

6. The method according to claim 5, characterized in that Before determining the target candidate beam RS resource according to the candidate beam RS resource group, the method further includes: Receive second configuration information sent by a network side device, where the second configuration information is used to configure the candidate beam RS resource group in the second cell group.

7. The method according to claim 1, characterized in that The sending a beam failure recovery request message to the network side device includes: A beam failure recovery request message is sent to a network side device on a first cell, where the first cell is a cell to which the terminal is connected.

8. The method according to claim 7, characterized in that In a case where the primary cell and the secondary cell to which the terminal is connected are in the same frequency band, the first cell includes any one of the following: The primary cell; a preset cell within the first cell group or the second cell group, wherein the second cell group is configured with a candidate beam RS resource group; A secondary cell outside the first cell group or the second cell group among the cells to which the terminal is connected; A preset cell in the third cell group.

9. The method according to claim 8, characterized in that In a case where the first cell is a secondary cell outside the first cell group or the second cell group in a cell to which the terminal is connected, the first cell satisfies at least one of the following: is a secondary cell associated with the first cell group or the second cell group; or, is a secondary cell indicated by the network side; or A secondary cell selected from multiple secondary cells configured by the network side; or, It is a secondary cell that is in the same frequency band as the first cell group or the second cell group.

10. The method according to claim 7, characterized in that The primary cell connected to the terminal is in a first frequency range and the secondary cell is in a second frequency range, or the primary cell and the secondary cell connected to the terminal are in different frequency bands in the second frequency range, wherein the first frequency range is lower than the second frequency range; The first cell includes any of the following: The primary cell; A cell in the same frequency band as the first cell group or the second cell group, wherein the second cell group is a cell group configured with a candidate beam RS resource group; a secondary cell located in a frequency band in the second frequency range except a frequency band in which the first cell group or the second cell group is located; The preset cell in the fourth cell group.

11. The method according to claim 1, characterized in that: The sending a beam failure recovery request message to the network side device includes: Sending a beam failure recovery request message to the network side device in the second cell by using the first method; The second cell is a cell to which the terminal is connected.

12. The method according to claim 11, characterized in that The first method includes any one of the following: Sending a beam failure recovery request message on a physical random access channel PRACH resource; Sending a beam failure recovery request message on a physical uplink control channel PUCCH resource; The beam failure recovery request message is sent on the medium access control MAC control element CE.

13. The method according to claim 12, characterized in that In the case where the first manner is to send a beam failure recovery request message on the PRACH resource, the PRACH resource is a non-contention PRACH resource and / or a contention PRACH resource; The sending a beam failure recovery request message to a network side device in a first manner on the second cell includes: Sending a beam failure recovery request message on the contention-free PRACH resource; or, In case that sending the beam failure recovery request message on the non-contention PRACH resource fails, sending the beam failure recovery request message on the contention PRACH resource; or, In the case where the target candidate beam RS resource is not determined, sending the beam failure recovery request message on the contention PRACH resource; or, In the case where the PRACH resource is only a contention PRACH resource, the beam failure recovery request message is sent on the contention PRACH resource.

14. The method according to claim 13, characterized in that The contention-free PRACH resources are associated with the target candidate beam RS resources.

15. The method according to claim 12, characterized in that In a case where the primary cell and the secondary cell to which the terminal is connected are in different frequency bands, the PRACH resources are PRACH resources configured on the frequency band where the first cell group is located.

16. The method according to claim 12, characterized in that When the first method is to send a beam failure recovery request message on the PUCCH resource or to send a beam failure recovery request message on the MAC CE, the beam failure recovery request message carries first information and / or second information, wherein the first information is used to indicate that a beam failure occurs in the first cell group, and the second information is used to indicate information of a candidate beam.

17. The method according to claim 16, characterized in that The candidate beam information includes target candidate beam RS resource information.

18. The method according to claim 17, characterized in that The second information includes at least one of the following: The index of the target candidate beam RS resource; The layer 1 reference signal received power L1-RSRP of the target candidate beam RS resource; The layer 1 signal to interference plus noise ratio L1-SINR of the target candidate beam RS resource.

19. The method according to any one of claims 12 to 18, characterized in that Before the second cell sends a beam failure recovery request message to the network side device in the first manner, the method further includes: Receive third configuration information sent by a network side device, wherein the third configuration information is used to configure channel resources used by the first method for the terminal on the second cell.

20. The method according to claim 19, characterized in that When the primary cell and the secondary cell to which the terminal is connected are in different frequency bands and the first method is to send a beam failure recovery request message on a physical uplink control channel PUCCH resource, the third configuration information is used to configure PUCCH resources on the primary cell.

21. The method according to claim 1, characterized in that The sending a beam failure recovery request message to the network side device includes: A beam failure recovery request message is sent to a network side device on a target uplink beam, wherein the target uplink beam is at least one uplink beam on a third cell, and the third cell is a cell to which the terminal is connected.

22. The method according to claim 21, characterized in that Before the beam failure recovery request message is sent to the network side device on the target uplink beam, the method further includes: The target uplink beam is determined based on a preset uplink beam, wherein the preset uplink beam includes at least one of the following: The beam of the uplink channel and / or uplink reference signal most recently sent by the terminal; The beam of the most recent PUCCH transmission by the terminal; A beam of a preset PUCCH on a preset cell and / or a preset bandwidth part BWP, and the preset PUCCH has a preset PUCCH resource index.

23. The method according to claim 1, characterized in that After the beam failure recovery request message is sent to the network side device, the method further includes: Receive the beam failure recovery request response message sent by the network side device.

24. The method according to claim 23, characterized in that The receiving a beam failure recovery request response message sent by a network side device includes: Receiving a beam failure recovery request response message sent by a network side device on a fourth cell, wherein the fourth cell includes any one of the following: The primary cell to which the terminal is connected; or A secondary cell within the first cell group, the second cell group, the third cell group or the fourth cell group; A secondary cell other than the first cell group, the second cell group, the third cell group or the fourth cell group among the cells to which the terminal is connected; or a preset cell in the fifth cell group; Among them, the second cell group is configured with a candidate beam RS resource group; the third cell group is: when the main cell and the secondary cell connected to the terminal are in the same frequency band, the cell group where the first cell is located, and the first cell is the cell used to send the beam failure recovery request message; the fourth cell group is: when the main cell and the secondary cell are in different frequency bands, the cell group where the first cell is located.

25. A beam failure processing method, applied to a network side device, characterized in that: The method comprises: A beam failure recovery request message sent by a receiving terminal; The beam failure recovery request message is: the terminal determines, according to the BFD RS resource group, a message sent when a beam failure occurs in the first cell group; the BFD RS resource group is configured in the first cell group; wherein the BFD RS resource group is configured in N preset cells in the first cell group, N is a positive integer, and N is greater than 1; The N preset cells are part of the cells in the first cell group, and each preset cell is a cell with a preset cell index; or, The N preset cells are all cells in the first cell group; The step of determining that beam failure occurs in the first cell group includes: In the case that beam failure occurs in all cells of the N preset cells, determining that beam failure occurs in the first cell group; or, When beam failure occurs in a first number of cells among the N preset cells, it is determined that beam failure occurs in the first cell group.

26. The method according to claim 25, characterized in that Before the beam failure recovery request message sent by the receiving terminal, the method further includes: Sending first configuration information to the terminal, where the first configuration information is used to configure the BFD RS resource group in the first cell group.

27. The method according to claim 26, characterized in that The first configuration information includes a cell index of a cell where the BFD RS resource group is located.

28. The method according to claim 25, characterized in that Before the beam failure recovery request message sent by the receiving terminal, the method further includes: Send second configuration information to the terminal, where the second configuration information is used to configure the candidate beam RS resource group in the second cell group.

29. The method according to claim 25, characterized in that The beam failure recovery request message sent by the receiving terminal includes: A beam failure recovery request message sent by a terminal is received on a first cell, where the first cell is a cell to which the terminal is connected.

30. The method according to claim 29, characterized in that In a case where the primary cell and the secondary cell to which the terminal is connected are in the same frequency band, the first cell includes any one of the following: The primary cell; a preset cell within the first cell group or the second cell group, wherein the second cell group is configured with a candidate beam RS resource group; A secondary cell outside the first cell group or the second cell group among the cells to which the terminal is connected; A preset cell in the third cell group.

31. The method according to claim 30, characterized in that In a case where the first cell is a secondary cell outside the first cell group or the second cell group in a cell to which the terminal is connected, the first cell satisfies at least one of the following: is a secondary cell associated with the first cell group or the second cell group; or, is a secondary cell indicated by the network side; or A secondary cell selected from multiple secondary cells configured by the network side; or, It is a secondary cell that is in the same frequency band as the first cell group or the second cell group.

32. The method according to claim 30, characterized in that The primary cell connected to the terminal is in a first frequency range and the secondary cell is in a second frequency range, or the primary cell and the secondary cell connected to the terminal are in different frequency bands in the second frequency range, wherein the first frequency range is lower than the second frequency range; The first cell includes any of the following: The primary cell; A cell in the same frequency band as the first cell group or the second cell group, wherein the second cell group is a cell group configured with a candidate beam RS resource group; a secondary cell located in a frequency band in the second frequency range except a frequency band in which the first cell group or the second cell group is located; The preset cell in the fourth cell group.

33. The method according to claim 25, characterized in that The beam failure recovery request message sent by the receiving terminal includes: Receiving, on the second cell, a beam failure recovery request message sent by the terminal in a second manner; The second cell is a cell to which the terminal is connected.

34. The method according to claim 33, characterized in that The second method includes any one of the following: receiving a beam failure recovery request message on a physical random access channel PRACH resource; Receiving a beam failure recovery request message on a physical uplink control channel PUCCH resource; A beam failure recovery request message is received at a medium access control MAC control element CE.

35. The method according to claim 34, characterized in that In the case where the second mode is receiving a beam failure recovery request message on the PRACH resource, the PRACH resource is a non-contention PRACH resource and / or a contention PRACH resource; The receiving, on the second cell, a beam failure recovery request message sent by the terminal in a second manner includes: receiving the beam failure recovery request message on the contention-free PRACH resource; or, In case that receiving the beam failure recovery request message on the non-contention PRACH resource fails, receiving the beam failure recovery request message on the contention PRACH resource; or, In the case where the target candidate beam RS resource is not determined, receiving the beam failure recovery request message on the contention PRACH resource; or, In a case where the PRACH resource is only a contention PRACH resource, the beam failure recovery request message is received on the contention PRACH resource.

36. The method according to claim 35, characterized in that The contention-free PRACH resources are associated with the target candidate beam RS resources.

37. The method according to claim 34, characterized in that In a case where the primary cell and the secondary cell to which the terminal is connected are in different frequency bands, the PRACH resources are PRACH resources configured on the frequency band where the first cell group is located.

38. The method according to claim 34, characterized in that When the second method is receiving a beam failure recovery request message on the PUCCH resource or receiving a beam failure recovery request message on the MAC CE, the beam failure recovery request message carries first information and / or second information, wherein the first information is used to indicate that a beam failure occurs in the first cell group, and the second information is used to indicate information of a candidate beam.

39. The method according to claim 38, characterized in that The candidate beam information includes target candidate beam RS resource information.

40. The method according to claim 39, characterized in that The second information includes at least one of the following: The index of the target candidate beam RS resource; The layer 1 reference signal received power L1-RSRP of the target candidate beam RS resource; The layer 1 signal to interference plus noise ratio L1-SINR of the target candidate beam RS resource.

41. The method according to any one of claims 33 to 40, characterized in that Before the receiving, on the second cell, a beam failure recovery request message sent by the terminal in the second manner, the method further includes: Send third configuration information to the terminal, wherein the third configuration information is used to configure channel resources used by the second mode for the terminal on the second cell.

42. The method according to claim 41, characterized in that When the primary cell and the secondary cell to which the terminal is connected are in different frequency bands, and the second method is to receive a beam failure recovery request message on a physical uplink control channel PUCCH resource, the third configuration information is used to configure PUCCH resources on the primary cell.

43. The method according to claim 25, characterized in that The beam failure recovery request message sent by the receiving terminal includes: A beam failure recovery request message sent by a terminal is received on a target uplink beam, wherein the target uplink beam is at least one uplink beam on a third cell, and the third cell is a cell to which the terminal is connected.

44. The method according to claim 25, characterized in that After the beam failure recovery request message sent by the receiving terminal, the method further includes: Based on the beam failure recovery request message, a beam failure recovery request response message is sent to the terminal.

45. The method according to claim 44, characterized in that Send a beam failure recovery request response message to the terminal, including: Sending a beam failure recovery request response message to the terminal on a fourth cell, where the fourth cell includes any one of the following: The primary cell to which the terminal is connected; or A secondary cell within the first cell group, the second cell group, the third cell group or the fourth cell group; A secondary cell other than the first cell group, the second cell group, the third cell group or the fourth cell group among the cells to which the terminal is connected; or a preset cell in the fifth cell group; Among them, the second cell group is configured with a candidate beam RS resource group; the third cell group is: when the main cell and the secondary cell connected to the terminal are in the same frequency band, the cell group where the first cell is located, and the first cell is the cell used to send the beam failure recovery request message; the fourth cell group is: when the main cell and the secondary cell are in different frequency bands, the cell group where the first cell is located.

46. ​​A terminal, characterized in that: include: A first determination module is configured to determine whether a beam failure occurs in a first cell group according to a beam failure detection reference signal BFD RS resource group, wherein the BFD RS resource group is configured in the first cell group; A sending module, configured to send a beam failure recovery request message to a network side device when a beam failure occurs in the first cell group; wherein the BFD RS resource group is configured in N preset cells in the first cell group, N is a positive integer, and the N is greater than 1; The N preset cells are part of the cells in the first cell group, and each preset cell is a cell with a preset cell index; or, The N preset cells are all cells in the first cell group; Wherein, the first determining module is used to: In the case that beam failure occurs in all cells of the N preset cells, determining that beam failure occurs in the first cell group; or, When beam failure occurs in a first number of cells among the N preset cells, it is determined that beam failure occurs in the first cell group.

47. A network side device, characterized in that: include: A receiving module, used for receiving a beam failure recovery request message sent by a terminal; The beam failure recovery request message is: the terminal determines, according to the BFD RS resource group, a message sent when a beam failure occurs in the first cell group; the BFD RS resource group is configured in the first cell group; wherein the BFD RS resource group is configured in N preset cells in the first cell group, N is a positive integer, and N is greater than 1; The N preset cells are part of the cells in the first cell group, and each preset cell is a cell with a preset cell index; or, The N preset cells are all cells in the first cell group; The step of determining that beam failure occurs in the first cell group includes: In the case that beam failure occurs in all cells of the N preset cells, determining that beam failure occurs in the first cell group; or, When beam failure occurs in a first number of cells among the N preset cells, it is determined that beam failure occurs in the first cell group.

48. A terminal, characterized in that: The method comprises a processor, a memory, and a computer program stored in the memory and executable on the processor, wherein the computer program, when executed by the processor, implements the steps of the beam failure processing method as claimed in any one of claims 1 to 24.

49. A network side device, characterized in that: The method comprises a processor, a memory and a computer program stored in the memory and executable on the processor, wherein the computer program, when executed by the processor, implements the steps of the beam failure processing method as described in any one of claims 25 to 45.

50. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the computer program implements the steps of the beam failure processing method as described in any one of claims 1 to 24, or implements the steps of the beam failure processing method as described in any one of claims 25 to 45.

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