User equipment and method in a wireless communication system - Patents.com

Abstract

The present application discloses a user device, an electronic device, a method, and a storage medium in a wireless communication system, wherein the user device in the wireless communication system communicates with an electronic device in the wireless communication system via one primary cell and multiple secondary cells, and the user device includes one or more processing circuits, the processing circuits being configured to: determine whether a beam failure occurs in each of the multiple secondary cells; and, if it is determined that a beam failure occurs in at least two of the multiple secondary cells, establish a single medium access control (MAC) control element (CE) and notify the electronic device, the MAC CE including at least index information of all component carriers in which the beam failure occurs.

Description

[Technical field]

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS This application claims priority to a Chinese patent application filed with the China Patent Office on August 15, 2019, bearing application number 201910753424.8 and entitled "User device, electronic device, method and storage medium in wireless communication system," the entire contents of which are incorporated herein by reference.

[0002] The present disclosure relates to the technical field of wireless communication, and in particular to a user device in a wireless communication system, an electronic device, a method and a computer-readable storage medium for performing wireless communication in a wireless communication system. [Background technology]

[0003] In the current wireless communication system, the network side configures one PCell (Primary Cell) and multiple SCells (Secondary Cells) for a UE (User Equipment) to communicate with a base station. For each SCell, the UE performs beam failure detection to determine whether the beam used for the SCell is in a failed state. If a beam failure occurs, the UE notifies the network side of a beam failure event, and also notifies the identifier of the SCell where the beam failure occurs and the new beam selected by the UE. Then, the network side transmits a signal using the new beam selected by the UE. If the UE receives the signal, it is considered that the new beam has been used, i.e., the beam failure recovery is successful.

[0004] In the 5th generation mobile communication system (5G) New Radio (NR) system, communication transmission operates in high frequency bands. Due to changes in the millimeter wave propagation environment, such as blocking of people and buildings, rotation of the UE, etc., beam failure often occurs in the beam between the UE and the network. In addition, when the UE is deployed in multiple SCells, the multiple SCells may be co-located, i.e., use the same downlink transmission beam. Therefore, when a beam failure occurs, beam failure may occur simultaneously in multiple secondary cells. Every time a beam failure occurs in one secondary cell, the UE notifies the network side of one beam failure event, and correspondingly notifies the identifier of the SCell in which the beam failure occurred and the new beam selected by the UE. As a result, the overhead of communication transmission becomes large. Summary of the Invention [Problem to be solved by the invention]

[0005] Therefore, it is necessary to propose a technical solution to reduce the communication transmission overhead when beam failure occurs in a secondary cell. [Means for solving the problem]

[0006] This section provides a general overview of the disclosure, and is not a complete disclosure of its entire scope or all of its features.

[0007] An object of the present disclosure is to provide a user device, an electronic device, a method for performing wireless communication in a wireless communication system, and a computer-readable storage medium that can reduce communication transmission overhead when a beam failure occurs in a secondary cell.

[0008] According to one aspect of the present disclosure, there is provided a user device in a wireless communication system, the user device communicating with an electronic device in the wireless communication system via one primary cell and a plurality of secondary cells, the user device including one or more processing circuits, the processing circuits being configured to perform the following operations: determining whether a beam failure occurs in each of the plurality of secondary cells; and if it is determined that a beam failure has occurred in at least two of the plurality of secondary cells, establishing a single medium access control control element (MAC CE) and notifying the electronic device, the MAC CE including at least index information of all component carriers in which beam failure has occurred.

[0009] According to another aspect of the present disclosure, there is provided an electronic device in a wireless communication system, the electronic device communicating with a user device in the wireless communication system via one primary cell and multiple secondary cells, the electronic device including a transceiver and one or more processing circuits arranged to perform the following operations: causing the transceiver to receive a single medium access control control element MAC CE from the user device, the MAC CE including at least index information of all component carriers in which beam failure has occurred.

[0010] According to another aspect of the present disclosure, there is provided a method for performing wireless communication in a wireless communication system, the wireless communication system including a user device and an electronic device, the user device communicating with the electronic device via one primary cell and a plurality of secondary cells, the method including a step of determining whether a beam failure occurs in each of the plurality of secondary cells, and a step of establishing a single medium access control control element (MAC CE) and notifying the electronic device when it is determined that a beam failure has occurred in at least two of the plurality of secondary cells, the MAC CE including at least index information of all component carriers in which a beam failure has occurred.

[0011] According to another aspect of the present disclosure, there is provided a method for performing wireless communication in a wireless communication system, the wireless communication system including a user device and an electronic device, the user device communicating with the electronic device via one primary cell and multiple secondary cells, the method including a step of receiving a single medium access control control element MAC CE from the user device, the MAC CE including at least index information of all component carriers in which beam failure occurs.

[0012] According to another aspect of the present disclosure, a computer readable storage medium is provided that includes executable computer instructions that, when executed by a computer, cause the computer to perform a method as described in the present disclosure.

[0013] By using a user device, electronic device, method for wireless communication in a wireless communication system, and computer-readable storage medium according to the present disclosure, communication transmission overhead can be reduced when a beam failure occurs in a secondary cell.

[0014] Further areas of applicability will become apparent from the description provided herein.The description and specific examples in this summary are intended for purposes of illustration only and are not intended to limit the scope of the present disclosure. [Brief description of the drawings]

[0015] The drawings described herein are intended to illustrate selected examples rather than all possible embodiments and are not intended to limit the scope of the present disclosure.

[0016] [Figure 1] FIG. 1 shows a schematic diagram of a beam failure recovery procedure between a UE and a network side known to the inventor. [Diagram 2] FIG. 2 shows a schematic diagram of a beam failure recovery procedure between another UE and the network side known to the inventor. [Diagram 3]FIG. 3 illustrates a configuration of a UE 300 in a wireless communication system according to an embodiment of the present disclosure. [Figure 4] FIG. 4 illustrates a configuration of a processing circuit 310 in a UE 300 in a wireless communication system according to an embodiment of the present disclosure. [Figure 5A] FIG. 5A is a schematic diagram of a format of multiple MAC CEs according to one embodiment of the present disclosure. [Figure 5B] FIG. 5B is a schematic diagram of the multiple MAC CEs of FIG. 5A collapsed into a single MAC CE. [Figure 6] FIG. 6 is a schematic diagram of a MAC CE using a grouping method according to one embodiment of the present disclosure. [Figure 7] FIG. 7 illustrates a schematic diagram of a network side sending a BFRR to a UE using a grouping method according to one embodiment of the present disclosure. [Figure 8] FIG. 8 illustrates a schematic diagram of a PCell transmitting a partial BFRR according to one embodiment of the present disclosure. [Figure 9] FIG. 9 illustrates a schematic diagram of a PCell transmitting a BFRR using two parts according to one embodiment of the present disclosure. [Figure 10] FIG. 10 illustrates a schematic diagram of interactions between the UE and the network side when the UE has not found a new beam that meets the quality requirement at q1 according to one embodiment of the present disclosure. [Figure 11] FIG. 11 illustrates a schematic diagram of the interaction between the UE and the network side when no BFR pre-processing occurs according to one embodiment of the present disclosure. [Figure 12] FIG. 12 shows a schematic diagram of transmission and reception where some parts of the beam are of low quality and other parts of the beam are of high quality. [Figure 13] FIG. 13 shows a schematic diagram of partially recovering a downlink transmit beam at q0 according to one embodiment of the present disclosure. [Figure 14] FIG. 14 is a block diagram of a configuration of an electronic device in a wireless communication system according to another embodiment of the present disclosure. [Figure 15]FIG. 15 is a flowchart of a wireless communication method according to an embodiment of the present disclosure. [Figure 16] FIG. 16 is a block diagram showing a first example of a schematic configuration of an eNB (evolution Node Base Station) or a gNB (a base station in a fifth generation communication system) applicable to the present disclosure. [Figure 17] FIG. 17 is a block diagram showing a second example of a schematic configuration of an eNB or gNB applicable to the present disclosure. [Figure 18] FIG. 18 is a block diagram showing an example of a schematic configuration of a smartphone to which the present disclosure can be applied. [Figure 19] FIG. 19 is a block diagram showing an example of a schematic configuration of a car navigation system applicable to the present disclosure. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0017] While the present disclosure is susceptible to various modifications and alternatives, specific embodiments thereof are shown by way of example in the accompanying drawings and are herein described in detail. It should be understood, however, that the description of the specific embodiments herein is not intended to limit the present disclosure to the specific forms, but on the contrary, the present disclosure is intended to encompass all modifications, equivalents, and substitutions falling within the spirit and scope of the present disclosure. Corresponding reference characters indicate corresponding components throughout the several drawings.

[0018] Examples of the present disclosure are more fully described with reference to the accompanying drawings, in which: The following description is merely exemplary in nature and is in no way intended to limit the present disclosure, its application, or uses.

[0019] Exemplary embodiments are provided to make the present disclosure more detailed and fully convey the scope of the disclosure to those skilled in the art. Various specific details, such as examples of specific components, devices, and methods, are described to provide a thorough understanding of the embodiments of the present disclosure. It will be apparent to those skilled in the art that specific details are not necessarily required and that the exemplary embodiments can be embodied in many different forms and should not be construed as limiting the scope of the present disclosure. In some exemplary embodiments, well-known processes, well-known structures, and well-known technologies are not described in detail.

[0020] The UE (User Equipment) related to the present disclosure includes, but is not limited to, a terminal having a wireless communication function, such as a mobile terminal, a computer, an in-vehicle device, etc. Depending on the specifically described functions, the UE related to the present disclosure may be the UE itself or a component thereof, such as a chip. Similarly, the base station related to the present disclosure may be, for example, an eNB (evolution Node Base Station), a gNB (base station in a fifth generation communication system), or a component in an eNB or a gNB, such as a chip.

[0021] In the current wireless communication system, the network side configures one PCell (Primary Cell) and multiple SCells (Secondary Cells) for a UE (User Equipment) to communicate with a base station. For each SCell, the UE performs beam failure detection to determine whether the beam used for the SCell is in a failed state. If a beam failure occurs, the UE notifies the network side of the beam failure event, and notifies the identity of the SCell where the beam failure occurs and the new beam selected by the UE to recover the SCell service. Then, the network side transmits a signal using the new beam selected by the UE. If the UE receives the signal, the new beam is activated, i.e., the beam failure recovery is considered to be successful.

[0022] Figure 1 shows a schematic diagram of a beam failure recovery procedure between a UE and a network side known to the inventors. The UE communicates with a base station via one PCell or SCell with an uplink and one SCell with only a downlink.

[0023] As shown in FIG. 1, for example, a PCell or SCell with an uplink can transmit a q0 set (Reference Signal Set) for BFD (Beam Failure Detection) to the UE. An SCell with only a downlink configures q0 configured for BFD in an explicit or implicit manner. For example, for an explicit configuration method, the reference signal set q0 may be up to two periodic CSI-RS (Channel State Information Reference Signal) resources configured by the gNB on each SCell for the UE by RRC (Radio Resource Control) signaling. In the absence of an explicit configuration method, an implicit configuration method can be used. For an implicit configuration method, the UE can determine by itself the reference signals included in the q0 set, which have the same TCI (Transmission Configuration Indication) state (i.e., the same beam direction) as the CORESET in which the PDCCH (Physical Downlink Control Channel) is located.

[0024] Then, the UE can determine whether a beam failure event occurs based on q0. For example, the UE can determine whether the beam is in a failure state by determining whether a virtual Block Error Rate (BLER) of a PDCCH corresponding to a reference signal at q0 is too high. Assuming that a beam failure event occurs, the UE can transmit a Physical Uplink Control Channel (PUCCH) to a PCell or SCell having an uplink to notify the beam failure event. For example, the UE can transmit a Beam Failure Recovery Request (BFRQ) on the PUCCH.

[0025] Then, the PCell or SCell with uplink can allow the PUSCH (Physical Uplink Shared Channel) to carry the MAC CE (Media Access Control-Control Element). Then, the UE can be informed by the MAC CE of the cell ID (Identification) where the beam failure occurred and the new beam selected by the UE. Finally, the UE can receive the PDCCH transmitted by the new beam in a specific PDCCH search space, i.e., RecoverySearchSpace, such that the new beam is considered to be enabled, i.e., the beam failure recovery is successful.

[0026] In addition, when a UE is located in multiple SCells, the multiple SCells may be collocated, that is, the multiple SCells may use the same downlink transmission beam. Therefore, when a beam failure occurs, beam failure may occur simultaneously in multiple SCells using the beam in which the failure occurs. Every time a beam failure occurs in one SCell, the UE notifies the network side of one beam failure event, and correspondingly notifies the ID of the SCell in which the beam failure occurs and the new beam selected by the UE. As a result, the overhead of communication transmission is relatively large.

[0027] Figure 2 shows a schematic diagram of another beam failure recovery procedure between a UE and a network side known to the inventors. The UE communicates with a base station via one PCell or SCell with an uplink and two SCells A and B with only a downlink.

[0028] As shown in FIG. 2, for example, a PCell or SCell with an uplink can send q0 for BFD to the UE. SCells A and B with only downlink can set q0 to be configured for BFD in an explicit or implicit manner. Then, the UE can determine whether a beam failure event occurs on SCell A and SCell B based on q0 received from SCell A and SCell B, respectively. Assuming that a beam failure event occurs, the UE can notify the PCell or SCell with an uplink of the beam failure event by sending PUCCH for SCell A and SCell B, respectively. Then, the PCell or SCell with an uplink can allow PUSCH to bear MAC CE for SCell A and SCell B, respectively. Then, the UE can notify the cell ID where the beam failure occurred and the new beam selected by the UE via MAC CE for SCell A and SCell B, respectively. Finally, the UE may receive the PDCCH transmitted by the new beam in one particular PDCCH search space, i.e., recovery search space A for SCell A and recovery search space B for SCell B, respectively, whereby the new beam is considered to be enabled, i.e., the beam failure recovery is successful. Specifically, if a corresponding beam is received in the recovery search space A, the beam recovery of SCell A is considered to be successful, and conversely, if a corresponding beam is not received in the recovery search space A, the beam of SCell A is considered to be not successfully recovered. The same applies to the beam recovery of SCell B, which will not be repeated here.

[0029] Note that in the case of multiple SCells being co-located, for example co-located SCell A and SCell B above, the UE does not need to search recovery search space A and recovery search space B of each SCell to check the activation of a new beam.

[0030] In order to solve at least one of the above problems, a technical solution according to the present disclosure is proposed. Figure 3 shows a configuration of a UE 300 in a wireless communication system according to an embodiment of the present disclosure.

[0031] 3, the UE 300 may include a processing circuit 310. The UE 300 may include one processing circuit 310 or may include a plurality of processing circuits 310. The UE 300 may also include a communication unit 320 and the like.

[0032] The processing circuitry 310 may include various individual functional units to perform various different functions and / or operations, which may be physical or logical entities, and units of different designations may be realized by the same physical entity.

[0033] According to an embodiment of the present disclosure, as shown in FIG. 3, the processing circuit 310 may include a determining unit 311 and a setting unit 312.

[0034] The determining unit 311 may be configured to determine whether a beam failure occurs in each of the multiple secondary cells.

[0035] And when the judgment unit 311 determines that a beam failure has occurred in at least two of the multiple secondary cells, the installation unit 312 may be configured to install a single media access control control element MAC CE to notify the network side of the beam failure event.

[0036] According to an embodiment of the present disclosure, the MAC CE may include index information of all component carriers (CCs) where beam failure occurs, where the present disclosure is not limited thereto, and the MAC CE may of course include other information, such as a new beam selected by the UE.

[0037] For example, according to an embodiment of the present disclosure, as shown in FIG. 4, the processing circuit 310 may further include a selection unit 313.

[0038] The selection unit 313 may be configured to select a new beam for each secondary cell that experiences beam failure based on the candidate reference signal set q1 for beam failure recovery. According to this embodiment, the MAC CE may include an identification information of the new beam selected by the UE, where the identification information of the new beam is associated with the index information of the failed CC.

[0039] As shown in FIG. 5A, three MAC CEs are shown in a schematic manner, and each MAC CE is represented by 8 bits. The first 5 bits of each MAC CE represent failed CC index information, and the last 3 bits represent a new beam ID. However, if multiple SCells A1 to Am are in a quasi-collocated relationship, i.e., have the same downlink transmission beam, and select the same new beam A, and multiple SCells B1 to Bm are in a quasi-collocated relationship and select the same new beam B, the multiple MAC CEs can be reduced to a single MAC CE, and the effective load of the MAC CE can be reduced.

[0040] For example, as shown in Fig. 5B, further, failed CC index A1 to failed CC index Am can be divided into one group, and a MAC CE can be configured such that multiple indexes A1...Am in the group are associated with a single new beam ID A. Similarly, failed CC index B1 to failed CC index Bm can be divided into one group, and a MAC CE can be configured such that multiple indexes B1...Bm in the group are associated with a single new beam ID B. This can reduce the effective load of the MAC CE.

[0041] In order to more rationally arrange the MAC CE, according to one embodiment of the present disclosure, the installation unit 312 may be further configured to install the MAC CE such that the MAC CE includes information indicating the length of the group.

[0042] Considering that the current protocol only supports the transmission of two different site addresses, we assume that the recovery is divided into two groups, group A and group B, accordingly. Of course, it is obvious to those skilled in the art that it can be extended to three or more groups.

[0043] For example, as shown in Fig. 6, at the beginning of each MAC CE report, the number of SCells where beam failure occurred for each group, e.g., group A, is placed, then failed CC index information A1...Am is reported, and finally, one new beam ID A is added. Next, the number of SCells where beam failure occurred for group B is reported, then failed CC index information B1...Bm is reported, and finally, one new beam ID B is added.

[0044] Correspondingly, when multiple SCells are in a quasi-co-location relationship, according to one embodiment of the present disclosure, the network side can send a BFRR (Beam Failure Recovery Response) to the UE in a grouping manner.

[0045] For example, Figure 7 shows a schematic diagram of the network side sending BFRR to the UE in a grouping manner, where SCells A1...Am with only downlink are a group called A group, and SCells B1...Bm with only downlink are a group called B group. The network side can choose to send one BFRR PDCCH for SCells in each group of A group and B group, thereby reducing the downlink signaling overhead of the network side. For example, the network side may send one BFRR PDCCH for A group to the UE. The network side may send one BFRR PDCCH for B group.

[0046] Then, a group of SCells A1...Am, i.e., group A, has the same new beam, and a group of SCells B1...Bm, i.e., group B, has the same new beam. Then, if the UE can find a PDCCH in the recovery search space in any of the SCells in one group, the UE considers that the beam failure recovery of the SCells in the group is successful. For example, if the UE finds a PDCCH in the recovery search space in SCell A1 in group A, the UE considers that the beam failure recovery of all SCells in group A is successful. If the UE finds a PDCCH in the recovery search space in SCell B1 in group B, the UE considers that the beam failure recovery of all SCells in group B is successful.

[0047] Also, if the network side does not use a grouping method to send BFRR to the UE, i.e., if the network side sends one BFRR for each SCell in each group, the UE will also consider the beam failure recovery of all SCells in the group to be successful when it finds a PDCCH in one recovery search space for each group, thus avoiding the UE from performing busy detection of additional downlink control channels.

[0048] Unlike the technical solution of sending BFRR to the UE in multiple SCells, the PCell may send BFRR to the UE for multiple SCells.

[0049] As shown in Figure 8, the BFRR transmitted from the PCell to the UE can be divided into two parts, Part 1 and Part 2. In Part 1, similar to the case of transmitting BFRR in multiple SCells to the UE, if the UE finds a PDCCH in the recovery search space of the PCell, such as RecoverySearchSpaceForSCell, it considers that a new beam has been activated, i.e., the beam failure recovery is successful.

[0050] In part 2, in order to save overhead, a PDSCH (Physical Downlink Shared Channel) resource scheduled by a PDCCH may be an invalid resource, for example, the frequency domain resource of the scheduled PDSCH is set to 0RB, or the number of OFDM symbols of the time domain resource is set to 0.

[0051] In addition, in order to include more dimensional information in the BFRR, as shown in FIG. 9, in part 1, similarly, if the UE finds a PDCCH in the recovery search space of the PCell, the UE considers the beam failure recovery successful. In part 2, the PDSCH scheduled by the PDCCH is used to transmit more information to the UE. For example, the MAC CE included in the BFRR transmitted on the PCell may indicate whether the new beam selected by the UE for each SCell is accepted by the network side. If the network side does not accept, the network side provides the ID of the new beam, for example, a CSI-RS resource index or an SSB index. Here, the format of the MAC CE for the PCell is similar to that shown in FIG. 5A, and each MAC CE is represented by 8 bits, and the first 5 bits of each MAC CE may represent failed CC index information, and the last 3 bits may represent a new beam ID.

[0052] As mentioned above, for each SCell, the UE is configured with two reference signal sets, q0 and q1. q0 is a reference signal set for beam failure detection, and q1 is a candidate reference signal set for beam failure recovery. If the UE has not found a new beam that meets the quality requirement in q1, the UE can report information indicating that there is no new beam to the network side, and the UE can reselect a new beam through an asynchronous downlink beam scanning process triggered by the network side.

[0053] As shown in FIG. 10, in the BFRQ process, if the UE has not found a new beam in q1 that meets the quality requirement, for example, the L1-RSRP (Lay 1-Reference Signal Receiving Power) exceeds a certain threshold, the UE can report a special status of one new beam to the network side. According to a preferred embodiment of the present disclosure, this special status can be reported in PUCCH. After the network side receives the report of this special status, it can choose to trigger an asynchronous downlink beam scanning process via DCI. After measuring the downlink beams, the UE can feed back the beam with the highest beam quality to the network side as the new beam.

[0054] If the UE detects that there is no new beam in q1 that is a candidate beam exceeding the L1-RSRP threshold, even if the quality of the beam in q0 is good at this time, the UE can still report this situation to the network side via PUCCH / PUSCH and request one aperiodic beam scanning and reporting, as shown in Figure 11.

[0055] In the current protocol, only when the quality of all beams in q0 is poor, it is considered as one BFR case. However, as shown in Figure 12, the RSs corresponding to Tx beam 1 and Tx beam 2 are both in the q0 set, but the quality of Tx beam 1 is poor. In this case, the UE does not report a BFR case to the MAC CE because the beam quality of Tx beam 2 is always better.

[0056] Therefore, in order to solve the above problem, according to one embodiment of the present disclosure, a partial beam failure state is determined based on a reference signal set q0 for beam failure detection, and in the partial beam failure state, even if only a portion of the reference signals in q0 are in a poor channel state, the UE reports information indicating that a portion of the reference signals are in a poor channel state to the network side, and the UE can re-establish q0 based on a message from the network side.

[0057] For example, as shown in Figure 13, if the UE detects that some of the RSs in q0 are in poor channel conditions, it can report to the network side to update / change the CORESET beams corresponding to the part of the RSs in q0. Then, the network side issues RRC relocation signaling or activates via MAC CE. Then, the UE transmits an ACK via PUCCH to indicate that it has successfully received the RRC relocation or MAC CE activation issued by the network side.

[0058] According to one embodiment of the present disclosure, the network side may include a base station or a TRP (Transmit / Receive port).

[0059] By using a user equipment in a wireless communication system according to the present disclosure, communication transmission overhead can be reduced when a beam failure occurs in a secondary cell.

[0060] Next, referring to FIG. 14, an electronic device 1400 in a wireless communication system according to another embodiment of the present disclosure will be described.

[0061] FIG. 14 illustrates a configuration of an electronic device 1400 in a wireless communication system according to another embodiment of the present disclosure.

[0062] 14, the electronic device 1400 may include a processing circuit 1410. Note that the electronic device 1400 may include one processing circuit 1410 or multiple processing circuits 1410. The electronic device 1400 may also include a communication unit 1420 such as a transceiver.

[0063] Similarly, as mentioned above, the processing circuitry 1410 may include various independent functional units to perform various different functions and / or operations. These functional units may be physical or logical entities, and units of different designations may be realized by the same physical entity.

[0064] The processing circuit 1410 can cause the communication unit 1420 to receive a single medium access control control element MAC CE from the user equipment, the MAC CE including at least index information of all component carriers in which beam failure occurs.

[0065] Preferably, the processing circuitry 1410 may be configured to perform the action of performing a beam failure recovery response based on the index information to enable a new beam.

[0066] Preferably, the MAC CE further includes identification information of the new beam selected by the user equipment, and the identification information may be associated with the index information.

[0067] Preferably, when at least two of the identification information are the same, a plurality of index information corresponding to the same identification information are divided into a group, and the MAC CE is configured such that a plurality of index information in the group are associated with a single identification information.

[0068] Preferably, the MAC CE is configured such that the MAC CE includes information indicating the length of the group.

[0069] Preferably, the processing circuit 1410 may be further configured to perform an operation of causing the communication unit 1420 to transmit a physical downlink control channel PDCCH signal as a beam failure recovery response BFRR in the recovery search space of any one or more or all secondary cells corresponding to the multiple index information in the group.

[0070] Preferably, the processing circuit 1410 may be further configured to perform an operation of causing the communication unit 1420 to transmit a physical downlink control channel PDCCH signal in the recovery search space of the primary cell.

[0071] Preferably, the processing circuit 1410 may be further configured to perform the following operations: reselect a new beam for a component carrier in which a beam failure has occurred, configure a physical downlink shared channel (PDSCH) signal scheduled by the PDCCH signal such that the PDSCH signal includes identification information of the reselected new beam, and cause the communication unit 1420 to transmit the PDSCH signal.

[0072] Preferably, the processing circuit 1410 is further configured to perform the operation of triggering an asynchronous downlink beam scanning process when information is received from the user device indicating that a new beam does not exist, so that the user device reselects a new beam.

[0073] Preferably, the processing circuit 1410 may be further configured to perform the operation of resetting q0 and notifying the user equipment when information is received from the user equipment indicating that only a portion of the reference signals in a reference signal set q0 for beam failure detection is in a poor channel condition.

[0074] In addition, according to an embodiment of the present disclosure, the above wireless communication system may be a 5G new wireless NR system, and the electronic device 1400 may be a base station or a TRP.

[0075] Next, a method for performing wireless communication in a wireless communication system according to an embodiment of the present disclosure will be described with reference to Fig. 15. Fig. 15 shows a flowchart of a wireless communication method according to an embodiment of the present disclosure.

[0076] As shown in FIG. 15, first, in step S1510, it is determined whether beam failure occurs in each of a plurality of secondary cells.

[0077] Then, in step S1520, if it is determined that beam failure has occurred in at least two of the multiple secondary cells, a single media access control control element MAC CE is installed and notified to the electronic device, and the MAC CE includes index information of at least all component carriers in which beam failure has occurred.

[0078] Preferably, the wireless communication method according to one embodiment of the present disclosure further includes a step in which each secondary cell in which a beam failure has occurred selects a new beam based on a candidate reference signal set q1 for beam failure recovery, and the MAC CE further includes identification information of the selected new beam, and the identification information is associated with the index information.

[0079] Preferably, the wireless communication method according to one embodiment of the present disclosure further includes, when at least two of the identification information are the same, a step of dividing a plurality of index information corresponding to the same identification information into a group, and a step of configuring the MAC CE so that the plurality of index information in the group is associated with a single identification information.

[0080] Preferably, the wireless communication method according to an embodiment of the present disclosure further includes configuring the MAC CE such that the MAC CE includes information indicating a length of the group.

[0081] Preferably, the wireless communication method according to one embodiment of the present disclosure further includes a step of searching for a physical downlink control channel (PDCCH) signal in a recovery search space of any of the secondary cells corresponding to a plurality of index information in the group; and, when the PDCCH signal is detected, a step of stopping busy detection in the recovery search space of each secondary cell corresponding to a plurality of index information in the group.

[0082] Preferably, the wireless communication method according to an embodiment of the present disclosure further includes searching for a physical downlink control channel (PDCCH) signal in a recovery search space of the primary cell.

[0083] Preferably, the wireless communication method according to one embodiment of the present disclosure further includes a step of obtaining, from a physical downlink shared channel (PDSCH) signal scheduled by the PDCCH signal, identification information of a new beam reselected by the electronic device for a component carrier in which a beam failure has occurred.

[0084] Preferably, the wireless communication method according to one embodiment of the present disclosure further includes a step of reporting information indicating that a new beam does not exist to the electronic device if a new beam cannot be selected based on q1, and a step of reselecting a new beam via an asynchronous downlink beam scanning process triggered by the electronic device.

[0085] Preferably, the wireless communication method according to one embodiment of the present disclosure further includes a step of pre-selecting a new beam for each of the multiple secondary cells based on a candidate reference signal set q1 for beam failure recovery, and if a new beam cannot be selected based on q1, a step of reporting information indicating that a new beam does not exist to the electronic device, and a step of re-selecting a new beam via an asynchronous downlink beam scanning process triggered by the electronic device.

[0086] Preferably, a wireless communication method according to one embodiment of the present disclosure includes a step of determining a partial beam failure state based on a reference signal set q0 for beam failure detection when determining whether a beam failure occurs in each of the multiple secondary cells, in which in the partial beam failure state, only a portion of the reference signals in q0 are in a poor channel state, a step of reporting information indicating that a portion of the reference signals are in a poor channel state to the electronic device, and a step of re-establishing q0 based on a message from the electronic device.

[0087] According to another embodiment of the present disclosure, there is further provided a method for performing wireless communication in a wireless communication system, the wireless communication system including a user device and an electronic device, the user device communicating with the electronic device via one primary cell and multiple secondary cells, the method including a step of receiving a single medium access control control element MAC CE from the user device, the MAC CE including at least index information of all component carriers in which beam failure occurs.

[0088] Preferably, the method according to another embodiment of the present disclosure further includes the step of performing a beam failure recovery response based on the index information to enable a new beam.

[0089] Preferably, in a method according to another embodiment of the present disclosure, the MAC CE further includes identification information of a new beam selected by the user equipment, and the identification information is associated with the index information.

[0090] Preferably, in a method according to another embodiment of the present disclosure, when at least two of the identification information are the same, a plurality of index information corresponding to the same identification information are divided into a group, and the MAC CE is configured such that the plurality of index information in the group are associated with a single identification information.

[0091] Preferably, in the method according to another embodiment of the present disclosure, the MAC CE is configured such that the MAC CE includes information indicating the length of the group.

[0092] Preferably, the method according to another embodiment of the present disclosure further includes a step of transmitting a physical downlink control channel PDCCH signal as a beam failure recovery response BFRR in the recovery search space of any one or more or all secondary cells corresponding to the multiple index information in the group.

[0093] Preferably, the method according to another embodiment of the present disclosure further includes causing the transceiver to transmit a physical downlink control channel PDCCH signal in a recovery search space of the primary cell.

[0094] Preferably, the method according to another embodiment of the present disclosure further includes the steps of reselecting a new beam for the component carrier in which the beam failure occurs, configuring a physical downlink shared channel (PDSCH) signal scheduled by the PDCCH signal such that the PDSCH signal includes identification information of the reselected new beam, and transmitting the PDSCH signal.

[0095] Preferably, the method according to another embodiment of the present disclosure further includes a step of triggering an asynchronous downlink beam scanning process when information indicating that no new beam exists is received from the user equipment, so that the user equipment reselects a new beam.

[0096] Preferably, the method according to another embodiment of the present disclosure further includes a step of resetting q0 and notifying the user equipment when information is received from the user equipment indicating that only a portion of reference signals in a reference signal set q0 for beam failure detection is in a poor channel condition.

[0097] Various specific embodiments of the foregoing steps of the method for wireless communication in a wireless communication system according to embodiments of the present disclosure have been described in detail above and will not be repeated here.

[0098] According to another embodiment of the present disclosure, there is also provided a computer-readable storage medium, which may include executable computer instructions that, when executed by a computer, may cause the computer to perform a method according to an embodiment of the present disclosure.

[0099] The technology of the present disclosure can be applied to various products. For example, the base station mentioned in the present disclosure can be realized as any type of evolved Node B (eNB), such as a macro eNB or a small eNB. The small eNB may be an eNB that can cover a cell smaller than a macro cell, such as a pico eNB, a micro eNB, and a home (femto) eNB. Alternatively, the base station may be realized as any other type of base station, such as a Node B and a base transceiver station (BTS). The base station may include a subject (also called a base station device) arranged to control wireless communication, and one or more remote radio heads (RRH) provided at a location different from the subject. In addition, various types of terminals described later can operate as a base station by temporarily or semi-permanently performing base station functions.

[0100] For example, the UE referred to in this disclosure may be realized as a mobile terminal (e.g., a smartphone, a tablet personal computer (PC), a notebook PC, a portable game terminal, a portable / dongle mobile router and a digital photographing device, etc.) or an in-vehicle terminal (e.g., a car navigation device). The UE may also be realized as a terminal performing machine-to-machine (M2M) communication (also called a machine-type communication (MTC) terminal). In addition, the UE may be a wireless communication module (e.g., an integrated circuit module including a single chip) mounted on each of the above terminals.

[0101] 16 is a block diagram showing a first example of a schematic configuration of an eNB to which the technology of the present disclosure can be applied. The eNB 1000 includes one or more antennas 1010 and a base station device 1020. The base station device 1020 and each antenna 1010 may be connected to each other via an RF cable.

[0102] Each of the antennas 1010 includes a single or multiple antenna elements (e.g., multiple antenna elements included in a multiple-input multiple-output (MIMO) antenna) and is used for transmitting and receiving radio signals of the base station device 1020. As shown in FIG. 16, the eNB 1000 may include multiple antennas 1010. For example, the multiple antennas 1010 may be compatible with multiple frequency bands used by the eNB 1000. Although FIG. 16 shows an example in which the eNB 1000 includes multiple antennas 1010, the eNB 1000 may include a single antenna 1010.

[0103] The base station device 1020 includes a controller 1021 , a memory 1022 , a network interface 1023 , and a wireless communication interface 1025 .

[0104] The controller 1021 may be, for example, a CPU or a DSP, and operates various functions of the upper layer of the base station device 1020. For example, the controller 1021 generates data packets based on data in a signal processed by the wireless communication interface 1025, and transmits the generated packets via the network interface 1023. The controller 1021 can bundle data from multiple baseband processors to generate bundled packets, and transmit the generated bundled packets. The controller 1021 may have logic functions to perform the following controls, such as radio resource control, radio bearer control, mobility management, admission control, and scheduling. These controls can be performed in cooperation with nearby eNBs or core network nodes. The memory 1022 includes RAM and ROM, and stores programs executed by the controller 1021 and various types of control data (e.g., terminal list, transmission power data, and scheduling data).

[0105] The network interface 1023 is for connecting the base station device 1020 to a communication interface of the core network 1024. The controller 1021 can communicate with a core network node or another eNB via the network interface 1023. In this case, the eNB 1000 and the core network node or another eNB may be connected to each other by a logical interface (e.g., an S1 interface and an X2 interface). The network interface 1023 may be a wired communication interface or a wireless communication interface for a wireless backhaul line. If the network interface 1023 is a wireless communication interface, the network interface 1023 can use a higher frequency band for wireless communication compared to the frequency band used by the wireless communication interface 1025.

[0106] The wireless communication interface 1025 supports any cellular communication method (e.g., Long Term Evolution (LTE) and LTE-Advanced) and provides wireless connection to terminals located in the cell of the eNB 1000 via the antenna 1010. The wireless communication interface 1025 may typically include, for example, a baseband (BB) processor 1026 and an RF circuit 1027. The BB processor 1026 may perform, for example, encoding / decoding, modulation / demodulation, multiplexing / demultiplexing, and various types of signal processing of layers (e.g., L1, Media Access Control (MAC), Radio Link Control (RLC), Packet Data Aggregation Protocol (PDCP)). Instead of the controller 1021, the BB processor 1026 may have some or all of the above-mentioned logical functions. The BB processor 1026 may be a memory in which a communication control program is stored, or may be a module including a processor and associated circuits arranged to execute the program. Program updates may change the functionality of the BB processor 1026. This module may be a card or a board inserted into a slot in the base station device 1020. Alternatively, this module may be a chip mounted on a card or a board. At the same time, the RF circuitry 1027 may include, for example, mixers, filters, amplifiers, and may transmit and receive radio signals via the antenna 1010.

[0107] As shown in Fig. 16, the wireless communication interface 1025 may include multiple BB processors 1026. For example, the multiple BB processors 1026 may be compatible with multiple frequency bands used by the eNB 1000. As shown in Fig. 16, the wireless communication interface 1025 may include multiple RF circuits 1027. For example, the multiple RF circuits 1027 may be compatible with multiple antenna elements. Although Fig. 16 shows an example in which the wireless communication interface 1025 includes multiple BB processors 1026 and multiple RF circuits 1027, the wireless communication interface 1025 may include a single BB processor 1026 or a single RF circuit 1027.

[0108] 17 is a block diagram showing a second example of a schematic configuration of an eNB to which the technology of the present disclosure can be applied. The eNB 1130 includes one or more antennas 1140, a base station device 1150, and an RRH 1160. The RRH 1160 and each antenna 1140 can be connected to each other via an RF cable. The base station device 1150 and the RRH 1160 can be connected to each other via a high-speed line such as an optical fiber cable.

[0109] Each of the antennas 1140 includes a single or multiple antenna elements (e.g., multiple antenna elements included in a MIMO antenna) and is used for transmitting and receiving radio signals for the RRH 1160. As shown in FIG. 17 , the eNB 1130 may include multiple antennas 1140. For example, the multiple antennas 1140 may be compatible with multiple frequency bands used by the eNB 1130. Although FIG. 17 shows an example in which the eNB 1130 includes multiple antennas 1140, the eNB 1130 may include a single antenna 1140.

[0110] The base station device 1150 includes a controller 1151, a memory 1152, a network interface 1153, a wireless communication interface 1155, and a connection interface 1157. The controller 1151, the memory 1152, and the network interface 1153 are similar to the controller 1021, the memory 1022, and the network interface 1023 described with reference to FIG.

[0111] The wireless communication interface 1155 supports any cellular communication method (e.g., LTE and LTE-Advanced) and provides wireless communication to a terminal located in a sector corresponding to the RRH 1160 via the RRH 1160 and the antenna 1140. The wireless communication interface 1155 may typically include, for example, a BB processor 1156. The BB processor 1156 is similar to the BB processor 1026 described with reference to FIG. 16 except that the BB processor 1156 is connected to the RF circuit 1164 of the RRH 1160 via a connection interface 1157. As shown in FIG. 17, the wireless communication interface 1155 may include multiple BB processors 1156. For example, the multiple BB processors 1156 may be compatible with multiple frequency bands used by the eNB 1130. Although FIG. 17 shows an example in which the wireless communication interface 1155 includes multiple BB processors 1156, the wireless communication interface 1155 may include a single BB processor 1156.

[0112] The connection interface 1157 is an interface for connecting the base station device 1150 (wireless communication interface 1155) to the RRH 1160. The connection interface 1157 may be a communication module for communication in the above-mentioned high-speed line for connecting the base station device 1150 (wireless communication interface 1155) to the RRH 1160.

[0113] The RRH 1160 includes a connection interface 1161 and a wireless communication interface 1163 .

[0114] The connection interface 1161 is an interface for connecting the RRH 1160 (wireless communication interface 1163) to the base station device 1150. The connection interface 1161 may be a communication module for communication in the above-mentioned high-speed line.

[0115] The wireless communication interface 1163 transmits and receives wireless signals via the antenna 1140. The wireless communication interface 1163 may typically include, for example, an RF circuit 1164. The RF circuit 1164 may include, for example, a mixer, a filter, and an amplifier, and may transmit and receive wireless signals via the antenna 1140. As shown in FIG. 17, the wireless communication interface 1163 may include multiple RF circuits 1164. For example, the multiple RF circuits 1164 may support multiple antenna elements. Although FIG. 17 illustrates an example in which the wireless communication interface 1163 includes multiple RF circuits 1164, the wireless communication interface 1163 may include a single RF circuit 1164.

[0116] In the eNB 1000 and the eNB 1130 shown in Figures 16 and 17, the processing circuit 1410 described in Figure 14 can be realized by the controller 1021 and / or the controller 1151, and the communication unit 1420 described in Figure 14 can be realized by the wireless communication interface 1025 and the wireless communication interface 1155 and / or the wireless communication interface 1163. At least a part of the functions may be realized by the controller 1021 and the controller 1151. For example, the controller 1021 and / or the controller 1151 can perform the control functions by executing instructions stored in corresponding memories.

[0117] 18 is a block diagram showing an example of a schematic configuration of a smartphone 1200 to which the technology of the present disclosure can be applied. The smartphone 1200 includes a processor 1201, a memory 1202, a storage device 1203, an external connection interface 1204, an image capture device 1206, a sensor 1207, a microphone 1208, an input device 1209, a display device 1210, a speaker 1211, a wireless communication interface 1212, one or more antenna switches 1215, one or more antennas 1216, a bus 1217, a battery 1218, and an auxiliary controller 1219.

[0118] The processor 1201 is, for example, a CPU or a system on chip (SoC), and can control the functions of the application layer and other layers of the smartphone 1200. The memory 1202 includes a RAM and a ROM, and stores data and programs executed by the processor 1201. The storage device 1203 can include storage media such as a semiconductor memory and a hard disk. The external connection interface 1204 is an interface for connecting an external device (for example, a memory card and a universal serial bus (USB) device) to the smartphone 1200.

[0119] The image capture device 1206 includes an image sensor (e.g., a charge-coupled device (CCD) and a complementary metal oxide semiconductor (CMOS)) to generate a captured image. The sensor 1207 may include a set of sensors, such as a measurement sensor, a gyro sensor, a geomagnetic sensor, and an acceleration sensor. The microphone 1208 converts a sound input to the smartphone 1200 into an audio signal. The input device 1209 includes, for example, a touch sensor, a keypad, a keyboard, a button, or a switch arranged to detect a touch on the screen of the display device 1210, and receives an operation or information input from a user. The display device 1210 includes a screen (e.g., a liquid crystal display (LCD) and an organic light-emitting diode (OLED) display) to display an output image of the smartphone 1200. The speaker 1211 converts an audio signal output from the smartphone 1200 into a sound.

[0120] The wireless communication interface 1212 supports any cellular communication method (e.g., LTE and LTE-Advanced) and performs wireless communication. The wireless communication interface 1212 can typically include, for example, a BB processor 1213 and an RF circuit 1214. The BB processor 1213 can perform, for example, encoding / decoding, modulation / demodulation, multiplexing / demultiplexing, and perform various types of signal processing for wireless communication. At the same time, the RF circuit 1214 can include, for example, a mixer, a filter, and an amplifier, and can transmit and receive wireless signals via an antenna 1216. The wireless communication interface 1212 may be a single chip module on which the BB processor 1213 and the RF circuit 1214 are integrated. As shown in FIG. 18, the wireless communication interface 1212 may include multiple BB processors 1213 and multiple RF circuits 1214. Although FIG. 18 shows an example in which the wireless communication interface 1212 includes multiple BB processors 1213 and multiple RF circuits 1214, the wireless communication interface 1212 may include a single BB processor 1213 or a single RF circuit 1214.

[0121] In addition to the cellular communication system, the wireless communication interface 1212 can support other types of wireless communication systems, such as a short-distance wireless communication system, a proximity communication system, a wireless local network (LAN) system, etc. In this case, the wireless communication interface 1212 may include a BB processor 1213 and an RF circuit 1214 for each wireless communication system.

[0122] Each of the antenna switches 1215 switches the connection of the antenna 1216 between a plurality of circuits (eg, circuits used for different wireless communication methods) included in the wireless communication interface 1212.

[0123] Each of the antennas 1216 includes a single or multiple antenna elements (e.g., multiple antenna elements included in a MIMO antenna) and is used for transmitting and receiving wireless signals through the wireless communication interface 1212. As shown in Fig. 18, the smartphone 1200 may include multiple antennas 1216. Although Fig. 18 shows an example in which the smartphone 1200 includes multiple antennas 1216, the smartphone 1200 may include a single antenna 1216.

[0124] The smartphone 1200 may include an antenna 1216 for each wireless communication system. In this case, the antenna switch 1215 may be omitted from the arrangement of the smartphone 1200.

[0125] The bus 1217 connects the processor 1201, the memory 1202, the storage device 1203, the external connection interface 1204, the image capture device 1206, the sensor 1207, the microphone 1208, the input device 1209, the display device 1210, the speaker 1211, the wireless communication interface 1212, and the auxiliary controller 1219 to one another. The battery 1218 supplies power to each block of the smartphone 1200 shown in Fig. 18 through a power supply line, which is partially represented by a dotted line in the drawing. The auxiliary controller 1219 operates the minimum necessary functions of the smartphone 1200, for example, in a sleep mode.

[0126] In the smartphone 1200 shown in Fig. 18, the processing circuit 310 and the determining unit 311 and the setting unit 312 therein described in Fig. 3 can be realized by the processor 1201 or the auxiliary controller 1219, and the communication unit 320 described in Fig. 3 can be realized by the wireless communication interface 1212. At least a part of the functions may be realized by the processor 1201 or the auxiliary controller 1219. For example, the processor 1201 or the auxiliary controller 1219 can perform the determining function and the setting function by executing instructions stored in the memory 1202 or the storage device 1203.

[0127] 19 is a block diagram showing an example of a schematic configuration of a car navigation device 1320 to which the technology of the present disclosure can be applied. The car navigation device 1320 includes a processor 1321, a memory 1322, a global positioning system (GPS) module 1324, a sensor 1325, a data interface 1326, a content player 1327, a storage medium interface 1328, an input device 1329, a display device 1330, a speaker 1331, a wireless communication interface 1333, one or more antenna switches 1336, one or more antennas 1337, and a battery 1338.

[0128] The processor 1321 is, for example, a CPU or SoC, and can control the navigation function and other functions of the car navigation device 1320. The memory 1322 includes a RAM and a ROM, and stores data and programs executed by the processor 1321.

[0129] The GPS module 1324 measures the position (e.g., latitude, longitude, altitude) of the car navigation device 1320 using GPS signals received from GPS satellites. The sensor 1325 may include a set of sensors such as a gyro sensor, a geomagnetic sensor, and an air pressure sensor. The data interface 1326 is connected to, for example, a car network 1341 via a terminal (not shown) to obtain data generated by the vehicle (e.g., vehicle speed data).

[0130] The content player 1327 plays content stored on storage (e.g., CDs and DVDs), which storage media are inserted into the storage media interface 1328. The input device 1329 includes, for example, a touch sensor, button, or switch arranged to detect a touch on the screen of the display device 1330, and receives operations or information input from a user. The display device 1330 includes, for example, a screen such as an LCD or OLED display, and displays images of the navigation function or the played content. The speaker 1331 outputs sounds of the navigation function or the played content.

[0131] The wireless communication interface 1333 can support any cellular communication method (e.g., LTE and LTE-Advanced) and perform wireless communication. The wireless communication interface 1333 may typically include, for example, a BB processor 1334 and an RF circuit 1335. The BB processor 1334 can perform, for example, encoding / decoding, modulation / demodulation, and multiplexing / demultiplexing, as well as various types of signal processing used in wireless communication. At the same time, the RF circuit 1335 can include, for example, a mixer, a filter, and an amplifier, and can transmit and receive wireless signals via an antenna 1337. The wireless communication interface 1333 may be a single chip module on which the BB processor 1334 and the RF circuit 1335 are integrated. As shown in FIG. 19, the wireless communication interface 1333 may include multiple BB processors 1334 and multiple RF circuits 1335. Although FIG. 19 shows an example in which the wireless communication interface 1333 includes multiple BB processors 1334 and multiple RF circuits 1335, the wireless communication interface 1333 may include a single BB processor 1334 or a single RF circuit 1335.

[0132] In addition to the cellular communication system, the wireless communication interface 1333 can support other types of wireless communication systems, such as a short-distance wireless communication system, a close-proximity communication system, and a wireless LAN system. In this case, the wireless communication interface 1333 may include a BB processor 1334 and an RF circuit 1335 for each wireless communication system.

[0133] Each of the antenna switches 1336 switches the connection of the antenna 1337 between a plurality of circuits (eg, circuits used for different wireless communication methods) included in the wireless communication interface 1333.

[0134] Each of the antennas 1337 includes a single or multiple antenna elements (for example, multiple antenna elements included in a MIMO antenna) and is used for transmitting and receiving wireless signals through the wireless communication interface 1333. As shown in Fig. 19, the car navigation device 1320 may include multiple antennas 1337. Although Fig. 19 shows an example in which the car navigation device 1320 includes multiple antennas 1337, the car navigation device 1320 may include a single antenna 1337.

[0135] The car navigation device 1320 may include an antenna 1337 for each wireless communication system. In this case, the antenna switch 1336 may be omitted from the arrangement of the car navigation device 1320.

[0136] 19 via a power supply line, which is partially represented by a dotted line in the drawing. The battery 1338 stores the power supplied from the vehicle.

[0137] 19, the processing circuit 310 and the determining unit 311 and the setting unit 312 therein described in FIG. 3 can be realized by a processor 1321, and the communication unit 320 described in FIG. 3 can be realized by a wireless communication interface 1333. At least a part of the functions may be realized by the processor 1321. For example, the processor 1321 can perform various determining functions and setting functions by executing instructions stored in the memory 1322.

[0138] The technology of the present disclosure may be realized as an in-vehicle system (or vehicle) 1340 including one or more blocks in a car navigation device 1320, an in-vehicle network 1341, and a vehicle module 1342. The vehicle module 1342 generates vehicle data (e.g., vehicle speed, engine speed, and abnormality information) and outputs the generated data to the in-vehicle network 1341.

[0139] It is clear that each component or each step in the system and method of the present disclosure can be decomposed and / or recombined. Such decomposition and / or recombination should be considered as an equivalent scheme of the present disclosure. Furthermore, the steps of performing the above-mentioned series of processes can be naturally performed in chronological order according to the order of description, but do not necessarily have to be performed in chronological order. Some steps may be performed in parallel or independently of each other.

[0140] Although the embodiments of the present disclosure have been described in detail above in conjunction with the drawings, it should be understood that the above-described embodiments are for the purpose of illustrating the present disclosure and do not limit the present disclosure. Those skilled in the art can make various modifications and changes to the above-described embodiments without departing from the spirit and scope of the present disclosure. Therefore, the scope of the present disclosure is limited only by the appended claims and their equivalents.

Claims

1. A user device in a wireless communication system, the user device communicating with an electronic device in the wireless communication system via a primary cell and a plurality of secondary cells, the user device including one or more processing circuits; The processing circuitry is arranged to perform the following operations: determining whether a beam failure occurs in each of the plurality of secondary cells; When it is determined that a beam failure occurs in at least two of the plurality of secondary cells, a single medium access control control element (MAC CE) is set up and notified to the electronic device, and the MAC CE includes at least index information of all component carriers in which a beam failure occurs; The processing circuitry is further configured to perform the following operations: Each secondary cell that experiences a beam failure selects a new beam based on a candidate reference signal set q1 for beam failure recovery; The MAC CE further includes identification information of the selected new beam, the identification information being associated with the index information; If at least two of the identities are the same, the processing circuitry is further configured to perform the following operations: Group multiple indexes for the same identification information, A user device that configures the MAC CE such that multiple index information in the group are associated with a single identification information.

2. The processing circuitry is further configured to perform the following operations: The user device of claim 1 , wherein the MAC CE is configured such that the MAC CE includes information indicating a length of the group.

3. The processing circuitry is further configured to perform the following operations: Searching for a physical downlink control channel (PDCCH) signal in a recovery search space of any secondary cell corresponding to a plurality of index information in the group; The user equipment according to claim 1 , wherein when any of the PDCCH signals is detected, busy detection is stopped for the recovery search space of each secondary cell corresponding to a plurality of index information in the group.

4. The user equipment according to any one of claims 1 to 3, wherein said electronic device is a base station or a transmit / receive port TRP.

5. A method for wireless communication in a wireless communication system, the wireless communication system including a user device and an electronic device, the user device communicating with the electronic device via a primary cell and a plurality of secondary cells, the method performed by the user device comprising: determining whether a beam failure occurs in each of the plurality of secondary cells; and when it is determined that a beam failure occurs in at least two of the plurality of secondary cells, setting up a single medium access control (MAC) control element (CE) and notifying the electronic device, the MAC CE including at least index information of all component carriers in which a beam failure occurs; Each secondary cell in which a beam failure occurs further includes selecting a new beam based on a candidate reference signal set q1 for beam failure recovery; The MAC CE further includes identification information of the selected new beam, the identification information being associated with the index information; If at least two of the identification information are the same, A step of dividing a plurality of index information items corresponding to the same identification information into groups; and configuring the MAC CE such that multiple index information in the group are associated with a single identity.

6. The method of claim 5 , further comprising: configuring the MAC CE such that the MAC CE includes information indicating a length of the group.

7. Searching for a physical downlink control channel (PDCCH) signal in a recovery search space of any secondary cell corresponding to a plurality of index information in the group; The method of claim 5 , further comprising: stopping busy detection for a recovery search space of each secondary cell associated with a plurality of index information in the group when the PDCCH signal is detected.

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