Electronic devices and methods for wireless communication, computer-readable storage medium

Abstract

An electronic device, a method, and a computer-readable storage medium for wireless communication, the electronic device comprising: processing circuitry configured to: obtain, from a base station, configuration information containing a first candidate beam set for beam failure recovery, the first candidate beam set comprising a candidate beam of a serving cell and a candidate beam of a non-serving cell; and determine, based on the first candidate beam set and / or a second candidate beam set, an identified candidate beam to be used for the beam failure recovery, wherein the second candidate beam set comprises a beam of the non-serving cell detected by the user equipment as a candidate beam.

Description

[0001] This application claims priority to Chinese Patent Application No. 202010535175.8, filed on June 12, 2020, entitled "Electronic Device and Method for Wireless Communication, Computer-Readable Storage Medium", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of wireless communication technology, and more specifically to a beam failure recovery (BFR) mechanism. More specifically, it relates to an electronic device and method for wireless communication, as well as a computer-readable storage medium. Background Technology

[0003] Beam Failure Detection (BFR) is designed to avoid frequent link failures caused by beam misalignment between the base station (gNB) and user equipment (UE). The BFR procedure defines a set of resource indexes for Beam Failure Detection (BFD) reference signals (BFD-RS) (e.g., periodic channel state information reference signals (CSI-RS)). The UE determines whether a beam failure event has occurred by measuring the quality of the BFD-RS in this set. When a beam failure event occurs, the UE needs to... Candidate beams suitable for BFR were identified. The candidate beam set... It is a periodic CSI-RS resource index and / or synchronization signal / physical broadcast channel (SS / PBCH) block index configured by the high-level parameter Candidate-Beam-RS-List.

[0004] In the candidate beam identification process, only the set The physical layer reference signal received power (L1-RSRP) value is greater than or equal to the threshold value Q. in,LR The beam from the non-serving cell is considered an available candidate beam and reported to higher layers. Therefore, according to the current BFR procedure, the UE can only reconnect to the current serving cell when performing BFR. However, in some cases, a beam from a non-serving cell may have a higher L1-RSRP value than a beam from the serving cell. Since beams from non-serving cells are not in the set... Therefore, the UE cannot use these beams as candidate beams and reconnect to a non-serving cell. Summary of the Invention

[0005] A brief overview of the invention is given below to provide a basic understanding of certain aspects of it. It should be understood that this overview is not an exhaustive summary of the invention. It is not intended to identify key or essential parts of the invention, nor is it intended to limit the scope of the invention. Its purpose is merely to present certain concepts in a simplified form as a prelude to the more detailed description that follows.

[0006] According to one aspect of this application, an electronic device for wireless communication is provided, comprising: a processing circuit configured to: obtain configuration information from a base station including a first candidate beam set for beam failure recovery, the first candidate beam set including candidate beams of serving cells and candidate beams of non-serving cells; and determine, based on the first candidate beam set and / or a second candidate beam set, an identified candidate beam to be used for beam failure recovery, wherein the second candidate beam set includes beams of non-serving cells detected by a user equipment as candidate beams.

[0007] According to one aspect of this application, a method for wireless communication is provided, comprising: obtaining from a base station configuration information including a first candidate beam set for beam failure recovery, the first candidate beam set including candidate beams of serving cells and candidate beams of non-serving cells; and determining identified candidate beams to be used for beam failure recovery based on the first candidate beam set and / or a second candidate beam set, wherein the second candidate beam set includes beams of non-serving cells detected by user equipment as candidate beams.

[0008] According to another aspect of this application, an electronic device for wireless communication is provided, comprising: a processing circuit configured to: provide a user equipment with configuration information including a first candidate beam set for beam failure recovery, the first candidate beam set including candidate beams of serving cells and candidate beams of non-serving cells; and obtain from the user equipment information of identified candidate beams to be used for beam failure recovery determined by the user equipment based on the first candidate beam set and / or a second candidate beam set, wherein the second candidate beam set includes beams of non-serving cells detected by the user equipment as candidate beams.

[0009] According to another aspect of this application, a method for wireless communication is provided, comprising: providing to a user equipment configuration information including a first candidate beam set for beam failure recovery, the first candidate beam set including candidate beams of serving cells and candidate beams of non-serving cells; and obtaining from the user equipment information of identified candidate beams to be used for beam failure recovery determined by the user equipment based on the first candidate beam set and / or a second candidate beam set, wherein the second candidate beam set includes beams of non-serving cells detected by the user equipment as candidate beams.

[0010] The electronic device and method according to this application enable the UE to recover to a non-serving cell when a beam failure event occurs, thereby improving the UE's communication quality.

[0011] According to other aspects of the present invention, computer program code and computer program product for implementing the above-described method for wireless communication, as well as a computer-readable storage medium having the computer program code for implementing the above-described method for wireless communication recorded thereon, are also provided.

[0012] These and other advantages of the invention will become more apparent from the following detailed description of preferred embodiments of the invention in conjunction with the accompanying drawings. Attached Figure Description

[0013] To further illustrate the above and other advantages and features of the present invention, specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. These drawings, together with the following detailed description, are included in and form a part of this specification. Elements having the same function and structure are indicated by the same reference numerals. It should be understood that these drawings only depict typical examples of the invention and should not be construed as limiting the scope of the invention. In the drawings:

[0014] Figure 1 This diagram illustrates beam failure recovery in a multi-cell scenario.

[0015] Figure 2 A functional block diagram of an electronic device for wireless communication according to an embodiment of this application is shown;

[0016] Figure 3 A schematic diagram of the information flow between the gNB and the UE regarding BFR is shown;

[0017] Figure 4 A functional block diagram of an electronic device for wireless communication according to an embodiment of this application is shown;

[0018] Figure 5 This diagram illustrates an example of a UE recovering to a non-serving cell;

[0019] Figure 6 A schematic diagram illustrating the information flow that combines BFR with the cell handover procedure is shown;

[0020] Figure 7 A functional block diagram of an electronic device for wireless communication according to another embodiment of this application is shown;

[0021] Figure 8 A flowchart of a method for wireless communication according to an embodiment of this application is shown;

[0022] Figure 9 A flowchart of a method for wireless communication according to another embodiment of this application is shown;

[0023] Figure 10 This is a block diagram illustrating a first example of a schematic configuration of an eNB or gNB to which the technologies of this disclosure can be applied;

[0024] Figure 11 This is a block diagram illustrating a second example of a schematic configuration of an eNB or gNB to which the technologies of this disclosure can be applied;

[0025] Figure 12 This is a block diagram illustrating an example of a schematic configuration of a smartphone to which the technologies of this disclosure can be applied;

[0026] Figure 13 This is a block diagram illustrating an example of a schematic configuration of a car navigation device to which the technology of this disclosure can be applied; and

[0027] Figure 14 This is a block diagram of an exemplary structure of a general-purpose personal computer in which methods and / or apparatus and / or systems according to embodiments of the present invention can be implemented. Detailed Implementation

[0028] Exemplary embodiments of the invention will be described below with reference to the accompanying drawings. For clarity and brevity, not all features of actual implementations are described in the specification. However, it should be understood that many implementation-specific decisions must be made in the development of any such actual embodiment to achieve the developer's specific goals, such as complying with constraints related to the system and business, and these constraints may vary depending on the implementation. Furthermore, it should be understood that while development work can be very complex and time-consuming, such development work is merely a routine task for those skilled in the art who benefit from this disclosure.

[0029] It should also be noted that, in order to avoid obscuring the invention with unnecessary details, only the device structure and / or processing steps closely related to the solution according to the invention are shown in the accompanying drawings, while other details that are not closely related to the invention are omitted.

[0030] <First Embodiment>

[0031] Figure 1This diagram illustrates beam failure recovery in a multi-cell scenario. Cell A is the UE's serving cell, and cell B is the UE's non-serving cell. A beam failure event occurs due to building obstruction. In existing technologies, even if cell B provides better service quality, the UE can only recover to cell A. To further improve the UE's service quality, this embodiment provides an electronic device 100 for wireless communication, enabling the UE to recover to either the serving cell or the non-serving cell in the event of a beam failure, thus improving the flexibility and reliability of beam failure recovery.

[0032] Figure 2 A functional block diagram of an electronic device 100 for wireless communication according to this embodiment is shown, such as... Figure 2 As shown, the electronic device 100 includes: an acquisition unit 101 configured to acquire configuration information from a base station containing a first candidate beam set for beam failure recovery, the first candidate beam set including candidate beams of the serving cell and candidate beams of non-serving cells; and a determination unit 102 configured to determine an identified candidate beam for beam failure recovery based on the first candidate beam set and / or a second candidate beam set, wherein the second candidate beam set includes beams of non-serving cells detected by the UE as candidate beams.

[0033] The acquisition unit 101 and the determination unit 102 can be implemented by one or more processing circuits, such as chips. Furthermore, it should be understood that... Figure 2 The functional units in the device shown are logical modules divided according to the specific functions they implement, rather than being used to restrict the specific implementation method.

[0034] Electronic device 100 may be located on the user equipment (UE) side or communicatively connected to the UE. It should also be noted that electronic device 100 may be implemented at the chip level or at the device level. For example, electronic device 100 may function as the user equipment itself and may also include external devices such as memory and transceivers (not shown). Memory may be used to store programs and related data information that the user equipment needs to execute to perform various functions. Transceivers may include one or more communication interfaces to support communication with different devices (e.g., base stations, other user equipment, etc.), and the specific implementation of the transceiver is not limited here.

[0035] Furthermore, it should be noted that the terms "first," "second," ... in this article are for distinction purposes only and do not imply any order.

[0036] For ease of understanding, Figure 3This diagram illustrates the information flow between the gNB and the UE regarding BFR (Band Frame Rate). First, the gNB sends BFR-related configuration information to the UE, for example, via Radio Resources Control (RRC) signaling. This configuration information may include the configuration information of the aforementioned first candidate beam set, and may also include other configuration information such as BFD-RS configuration information. The UE then... The BFD-RS in the UE performs beam quality detection and determines that a beam failure event has occurred. At this time, the UE sends a Beam Failure Recovery Request (BFRQ) to the gNB. For example, the UE sends a Link Recovery Request (LRR) to the gNB via the Physical Uplink Control Channel (PUCCH) to request an Uplink Grant (ULgrant). The gNB then sends the UL grant to the UE, and the UE, based on the UL grant, sends a MAC CE to the base station on the corresponding Physical Uplink Shared Channel (PUSCH) resource. The MAC CE may include information identifying candidate beams determined by the UE. In response to the received BFRQ, the gNB sends a Beam Failure Recovery Request Response (BFRR) to the UE.

[0037] As can be seen, the BFR mechanism executed on the UE side can include several stages, such as beam failure determination, candidate beam identification, BFRQ transmission, and BFRR acquisition. Specifically, in the beam failure determination stage, the UE checks the beam quality of the current serving beam to determine whether the beam failure triggering condition is met; for example, it can compare the block error rate (BLER) of the serving beam with a BLER threshold to determine whether beam failure has occurred. In the candidate beam identification stage, a candidate beam that can be used as a replacement for the current serving beam is selected from other beams. In the BFRQ transmission stage, a BFRQ is transmitted to the base station (e.g., gNB). In the BFRR acquisition stage, the UE monitors the BFRR response from the base station within a specific time window.

[0038] According to this embodiment, in the candidate beam identification stage, the beam used for candidate beam selection can include not only the candidate beam of the serving cell, but also the candidate beam of the non-serving cell. Furthermore, the candidate beam of the non-serving cell can be configured by the base station for the UE, or it can be detected by the UE itself.

[0039] As described above, the first candidate beam set includes candidate beams of the serving cell and candidate beams of non-serving cells configured by the base station for the UE, and the second candidate beam set includes candidate beams of non-serving cells detected by the UE itself. It should be understood that the first candidate beam set may also include only candidate beams of the serving cell; in this case, all candidate beams of non-serving cells are detected by the UE itself. Alternatively, all candidate beams of non-serving cells may be configured by the base station; in this case, the UE does not detect candidate beams of non-serving cells itself, i.e., the second candidate beam set is empty.

[0040] In this document, when a beam failure event occurs, the determining unit 102 determines an available candidate beam from a first candidate beam set and / or a second candidate beam set. The determined available candidate beam is referred to as the identified candidate beam. During the BFRQ transmission phase, the UE provides the identified candidate beam information to the base station so that the base station can determine the beam to which the UE should recover.

[0041] Candidate beams can be indicated by reference signals, such as CSI-RS and SSB. For example, configuration information obtained from the base station may include the index of the reference signal corresponding to the candidate beam and the Physical Cell Identification (PCI) of the cell corresponding to the reference signal, as shown in the pseudocode below.

[0042]

[0043] Wherein, if the reference signal corresponds to a serving cell, the PCI of the corresponding serving cell can be omitted or set to a default value. As described above, the acquisition unit 101 can obtain the above configuration information through RRC signaling.

[0044] In one example, the candidate beams in the first candidate beam set may include the beam corresponding to the reference signal configured by the base station for mobility management for the UE. The corresponding pseudocode is shown below, for example.

[0045]

[0046] In this example, since the base station has already configured reference signals for mobility management for the UE, the UE can reuse these reference signals without additional configuration, thus reducing signaling overhead.

[0047] Furthermore, the second candidate beam set may include the beam corresponding to the SSB of the non-serving cell detected by the UE. The determining unit 102 can determine the PCI of the cell corresponding to the candidate beam in the second candidate beam set by decoding the primary synchronization signal / secondary synchronization signal (PSS / SSS).

[0048] like Figure 4 As shown, the electronic device 100 may further include a reporting unit 103 configured to report information about the identified candidate beam to the base station. The information about the identified candidate beam may include, for example, an identifier or index of a reference signal corresponding to the identified candidate beam.

[0049] When the identified candidate beam is a candidate beam from the first candidate beam set, since these beams are configured by the base station, the reporting unit 103 does not need to report the PCI of the identified candidate beam to the base station. On the other hand, when the identified candidate beam includes a candidate beam from the second candidate beam set, since such an identified candidate beam is not configured by the base station, the UE also needs to provide the base station with information about the cell to which the identified candidate beam belongs. In this case, the information about the identified candidate beam may also include the PCI of the cell to which the identified candidate beam belongs.

[0050] For example, the reporting unit 103 is configured to provide the base station with information about candidate beams included in the candidate beam set that belong to the second candidate beam set, as well as the PCI of the cell corresponding to the candidate beam. In this way, the base station can determine which non-serving cell the candidate beam belongs to.

[0051] like Figure 3 As shown, the reporting unit 103 can provide information for identifying candidate beams by sending a MAC CE on the PUSCH.

[0052] Since the range of candidate beams for BFR in this application is extended to beams in non-serving cells, it is desirable to provide a method that can quickly identify candidate beams to ensure that the delay requirements of BFR are met.

[0053] As an example, a dual-threshold judgment method can be used. Specifically, the acquisition unit 101 obtains information about a first threshold and a second threshold from the base station. When the number of occurrences of beam failure event instances reaches or exceeds the first threshold, the determination unit 102 initiates the determination of candidate beams; when the number of occurrences of beam failure event instances reaches or exceeds the second threshold, the determination unit 102 determines a beam failure event and initiates the BFR procedure, wherein the first threshold is less than or equal to the second threshold. Similarly, information about the first and second thresholds can be obtained by the acquisition unit 101 from the base station via RRC signaling.

[0054] It can be seen that by adopting the dual threshold judgment method, the identification of candidate beams can begin before the BFR procedure is started (i.e., the beam failure event is reported to the base station), so that the information on identifying candidate beams can be quickly provided to the base station after the BFR procedure is started, thereby reducing the latency.

[0055] For example, the determining unit 102 can establish a first counter and a second counter to count the number of times beam failure event instances occur, and compare the count value of the first counter with a first threshold and the count value of the second counter with a second threshold.

[0056] For example, the existing BFI-COUNTER can be used as the second counter, and a new BFI-COUNTER* can be created as the first counter. The existing threshold beamFailureInstanceMaxCount used to determine beam failure events can be used as the second threshold, and the new counter threshold beamFailureInstance* can be used as the first threshold.

[0057] beamFailureInstance*≤beamFailureInstanceMaxCount

[0058] When a beam failure event instance is received from the underlying layer, both BFI-COUNTER* and BFI-COUNTER are incremented by one. When BFI-COUNTER* >= beamFailureInstance*, BFI-COUNTER* stops incrementing. At this point, the UE will determine the candidate beam, including candidate beams from non-serving cells. When BFI-COUNTER >= beamFailureInstanceMaxCount, BFI-COUNTER stops incrementing. The BFR procedure is then initiated, and the UE reports the beam failure event and candidate beam information to the gNB.

[0059] Furthermore, restoring a beam to a non-serving cell in the event of a beam failure incurs more signaling overhead than restoring to the serving cell. Therefore, specific conditions can be set for restoring to a non-serving cell. For example, the determining unit 102 is configured to determine candidate beams of non-serving cells in the first candidate beam set and / or the second candidate beam set as identification candidate beams under the following conditions: the beam quality of the candidate beam of the serving cell is lower than a predetermined quality; and the beam quality of the candidate beam of the non-serving cell is higher than the beam quality of the candidate beam of the serving cell by a predetermined value or more.

[0060] The acquisition unit 101 can obtain settings related to predetermined quality and predetermined values ​​from the base station. For example, the acquisition unit 101 can obtain these settings via RRC signaling. Alternatively, the settings related to predetermined quality and predetermined values ​​can be those defaulted to by the UE and the base station.

[0061] Figure 5The diagram illustrates an example of a UE recovering to a non-serving cell. In this example, due to building obstruction, the quality of the candidate beam of the serving cell is poor, while the quality of the candidate beam of the non-serving cell is better, thus satisfying the two conditions mentioned above. Therefore, the UE uses the candidate beam of the non-serving cell as the identification candidate beam and recovers to that non-serving cell.

[0062] By setting specific conditions, it is possible to improve the communication quality of the UE while minimizing unnecessary signaling overhead.

[0063] When the candidate beam is identified as a candidate beam of a non-serving cell in the first candidate beam set and / or the second candidate beam set, that is, when the UE needs to restore to the candidate beam of a non-serving cell, considering that the UE's original configuration may be invalid in different cells, the process of the UE in RRC connection state restoring to a non-serving cell will involve cell handover. In order to simplify the complexity and reduce signaling overhead and latency, this embodiment combines the cell handover procedure with the BFR procedure.

[0064] For example, the acquisition unit 101 can be configured to acquire RRC reconfiguration information for a non-serving cell from the base station during the BFR procedure. For example, the RRC reconfiguration information for the non-serving cell can be included in the BFRR sent by the base station.

[0065] Figure 6 This diagram illustrates the information flow combining BFR with the cell handover procedure. The source gNB is the gNB of the currently serving cell, and BFRQ can represent... Figure 3 The LLR and candidate beam identification information shown in the diagram indicate that the source gNB determines the target cell the UE needs to recover to, based on the candidate beam identification information. It then sends a Handover Request to the target cell's gNB (i.e., the target gNB). After performing admission control, the target gNB sends a Handover Request confirmation to the source gNB. Next, the source gNB sends a BFRR to the UE, which includes RRC reconfiguration information for the target cell. The UE then hands over to the target cell and completes the RRC reconfiguration.

[0066] It can be seen that including the target cell's RRC reconfiguration information in the BFRR can effectively reduce signaling overhead and latency. It should be noted that... Figure 6 The information flow described is merely illustrative and does not constitute a limitation on this application.

[0067] In summary, the electronic device 100 according to this embodiment enables the UE to recover to a non-serving cell when a beam failure event occurs, thereby improving the UE's communication quality. Furthermore, improvements to the candidate beam identification operation and / or the recovery process to a non-serving cell reduce signaling overhead and latency, further enhancing the UE's communication quality.

[0068] <Second Embodiment>

[0069] Figure 7 A functional block diagram of an electronic device 200 according to another embodiment of this application is shown, such as Figure 7 As shown, the electronic device 200 includes: a providing unit 201 configured to provide the UE with configuration information including a first candidate beam set for beam failure recovery, the first candidate beam set including candidate beams of the serving cell and candidate beams of non-serving cells; and an obtaining unit 202 configured to obtain from the UE information on identification candidate beams to be used for BFR determined by the UE based on the first candidate beam set and / or a second candidate beam set, wherein the second candidate beam set includes beams of non-serving cells detected by the UE as candidate beams.

[0070] The providing unit 201 and the obtaining unit 202 can be implemented by one or more processing circuits, such as chips. Furthermore, it should be understood that... Figure 7 The functional units in the device shown are logical modules divided according to the specific functions they implement, rather than being used to restrict the specific implementation method.

[0071] Electronic device 200 may be disposed on the base station side or communicatively connected to the base station. It should also be noted that electronic device 200 may be implemented at the chip level or at the device level. For example, electronic device 200 may function as the base station itself and may also include external devices such as memory and transceivers (not shown). The memory may be used to store programs and related data information that the base station needs to execute to perform various functions. The transceiver may include one or more communication interfaces to support communication with different devices (e.g., user equipment, other base stations, etc.), and the specific implementation of the transceiver is not limited here.

[0072] According to this embodiment, the base station can configure candidate beams of non-serving cells for the UE as candidate beams for BFR, so that the UE can recover to the non-serving cell as needed. Furthermore, the candidate beams of non-serving cells can be configured by the base station for the UE, or they can be detected by the UE itself. Similar to the first embodiment, the candidate beams of non-serving cells detected by the UE itself are included in the second candidate beam set.

[0073] It should be understood that the first candidate beam set may also include only candidate beams from the serving cell. In this case, all candidate beams from non-serving cells are detected by the UE itself. Alternatively, all candidate beams from non-serving cells may be configured by the base station. In this case, the UE does not detect candidate beams from non-serving cells itself, i.e., the second candidate beam set is empty.

[0074] In the event of a beam failure, the UE determines an available candidate beam from a first candidate beam set and / or a second candidate beam set. The determined available candidate beam is called the identification candidate beam. The base station obtains the identification candidate beam information from the UE and determines the beam that the UE wants to recover to.

[0075] As mentioned earlier, candidate beams can be indicated by reference signals, such as CSI-RS and SSB. For example, configuration information may include the index of the reference signal corresponding to the candidate beam and the PCI of the cell corresponding to the reference signal; the corresponding pseudocode has been given in the first embodiment and will not be repeated here. Wherein, if the reference signal corresponds to a serving cell, the PCI of the corresponding serving cell can be omitted or set to a default value. The providing unit 201 can provide this configuration information, for example, through RRC signaling.

[0076] In one example, the candidate beams in the first candidate beam set may include beams corresponding to reference signals configured by the base station for mobility management for the UE. In this example, since the base station has already configured reference signals for mobility management for the UE, the UE can reuse these reference signals without additional configuration, reducing signaling overhead.

[0077] Furthermore, the second candidate beam set may include the beam corresponding to the SSB of the non-serving cell detected by the UE. The UE can also determine the PCI of the cell corresponding to the candidate beam in the second candidate beam set by decoding the PSS / SSS.

[0078] The acquisition unit 202 is also configured to acquire information about identifying candidate beams from the UE. This information may include, for example, an identifier or index of a reference signal corresponding to the candidate beam.

[0079] When the identified candidate beam is a candidate beam from the first candidate beam set, since these beams are configured by the base station for the UE, the UE does not need to report the PCI of the identified candidate beam to the base station. On the other hand, when the identified candidate beam includes candidate beams from the second candidate beam set, since such identified candidate beams are not configured by the base station, the UE also needs to provide the base station with information about the cell to which the identified candidate beam belongs. In this case, the information of the identified candidate beam may also include the PCI of the cell to which the identified candidate beam belongs. Accordingly, the acquisition unit 202 is configured to acquire the information of the identified candidate beam and the PCI of the cell to which the identified candidate beam belongs from the UE. In this way, the base station can determine which non-serving cell the identified candidate beam belongs to. For example, the acquisition unit 202 can acquire the information of the identified candidate beam by receiving the MAC CE on the PUSCH.

[0080] Since the range of candidate beams for BFR has been expanded to include beams in non-serving cells, it is desirable to provide a method that can quickly identify candidate beams to ensure that the delay requirements of BFR are met.

[0081] Similarly, a dual-threshold judgment method can be used. Specifically, the providing unit 201 is configured to provide the UE with information about a first threshold and a second threshold, wherein when the number of beam failure event instances reaches or exceeds the first threshold, the UE initiates the determination of candidate beams; when the number of beam failure event instances reaches or exceeds the second threshold, the UE determines to send a beam failure event and initiates the BFR procedure, wherein the first threshold is less than or equal to the second threshold. Similarly, information about the first and second thresholds can be provided to the UE by the providing unit 201 via RRC signaling.

[0082] As can be seen, by employing the dual-threshold judgment method, the identification of candidate beams can begin before the BFR procedure is initiated (i.e., the UE reports the beam failure event to the base station). This allows the UE to quickly provide the base station with information on the identified candidate beams after the BFR procedure is initiated, thereby reducing latency. A detailed description of the dual-threshold judgment method has been given in the first embodiment and will not be repeated here.

[0083] Furthermore, restoring the beam to a non-serving cell in the event of a beam failure incurs more signaling overhead than restoring to the serving cell. Therefore, specific conditions can be set for restoring to a non-serving cell. For example, providing unit 201 is also configured to provide the UE with conditions for a candidate beam for a non-serving cell to be identified as a candidate beam. These conditions may include, for example, that the beam quality of the candidate beam of the serving cell is lower than a predetermined quality, and that the beam quality of the candidate beam of the non-serving cell is higher than the beam quality of the candidate beam of the serving cell by a predetermined value. For example, providing unit 201 may provide the UE with settings regarding the predetermined quality and predetermined value. Providing unit 201 may provide these settings via RRC signaling. Alternatively, the settings regarding the predetermined quality and predetermined value may be default settings between the UE and the base station.

[0084] By setting specific conditions, it is possible to improve the communication quality of the UE while minimizing unnecessary signaling overhead.

[0085] When the candidate beam is identified as a candidate beam for a non-serving cell in the first and / or second candidate beam sets, i.e., when it is determined that the UE needs to restore to a candidate beam for a non-serving cell, considering that the UE's original configuration may become invalid in different cells, the process of a UE in RRC connection state restoring to a non-serving cell will involve cell handover. To simplify complexity and reduce signaling overhead and latency, the cell handover procedure can be combined with the BFR procedure.

[0086] For example, in the BFR procedure, after the acquisition unit 202 receives the BFRQ from the UE, the providing unit 201 may send a handover request to the non-serving cell that is the handover target. The acquisition unit 202 receives the handover request confirmation from the non-serving cell, and the providing unit 201 provides the UE with RRC reconfiguration information for the non-serving cell. For example, the RRC reconfiguration information for the non-serving cell may be included in the BFRR sent by the base station. The specific information flow has been referred to Figure 6 The first embodiment has been described in detail and will not be repeated here.

[0087] By including the RRC reconfiguration information of non-serving cells in the BFRR, signaling overhead and latency can be effectively reduced.

[0088] In summary, the electronic device 200 according to this embodiment enables the UE to recover to a non-serving cell when a beam failure event occurs, thereby improving the UE's communication quality. Furthermore, improvements to the candidate beam identification operation and / or the recovery process to a non-serving cell reduce signaling overhead and latency, further enhancing the UE's communication quality.

[0089] <Third Embodiment>

[0090] In the process of describing the electronic device for wireless communication in the above embodiments, some processes or methods have obviously been disclosed. Hereinafter, without repeating some details already discussed above, a summary of these methods is given. However, it should be noted that although these methods are disclosed in the description of the electronic device for wireless communication, they do not necessarily employ or are performed by the components described. For example, the embodiments of the electronic device for wireless communication may be implemented partially or entirely using hardware and / or firmware, while the methods for wireless communication discussed below may be implemented entirely by computer-executable programs, although these methods may also employ the hardware and / or firmware of the electronic device for wireless communication.

[0091] Figure 8 A flowchart of a method for wireless communication according to an embodiment of this application is shown. The method includes: obtaining configuration information from a base station containing a first candidate beam set for BFR, the first candidate beam set including candidate beams of the serving cell and candidate beams of non-serving cells (S11); and determining an identification candidate beam to be used for BFR based on the first candidate beam set and / or a second candidate beam set (S12), wherein the second candidate beam set includes beams of non-serving cells detected by the UE as candidate beams. This method can be performed, for example, on the UE side.

[0092] For example, the second candidate beam set includes beams corresponding to the SSBs of non-serving cells detected by the UE. The PCI of the cell corresponding to the candidate beam in the second candidate beam set can be determined by decoding the primary synchronization signal / secondary synchronization signal.

[0093] The configuration information may include the index of the reference signal corresponding to the candidate beam and the PCI of the cell corresponding to the reference signal. The reference signal may be either an SSB or a CSI-RS. For example, the candidate beams in the first candidate beam set may include the beams corresponding to the reference signals configured by the base station for mobility management for the UE.

[0094] In one example, candidate beams of non-serving cells in the first candidate beam set and / or the second candidate beam set are identified as candidate beams under the following conditions: the beam quality of the candidate beam of the serving cell is lower than a predetermined quality; and the beam quality of the candidate beam of the non-serving cell is higher than the beam quality of the candidate beam of the serving cell by a predetermined value. The settings regarding the predetermined quality and predetermined value can be obtained from the base station.

[0095] When the identified candidate beam includes candidate beams from the second candidate beam set, the UE provides the base station with information about the candidate beams included in the candidate beam set that belong to the second candidate beam set, as well as the PCI of the cell corresponding to that candidate beam. For example, the information about the identified candidate beam can be provided by transmitting a MAC CE on the Physical Uplink Shared Channel.

[0096] For example, if the candidate beam is identified as a candidate beam for a non-serving cell in the first candidate beam set and / or the second candidate beam set, the RRC reconfiguration information for the non-serving cell can be obtained from the base station during the BFR procedure. The RRC reconfiguration information for the non-serving cell can be included in the BFRR sent by the base station.

[0097] In addition, the above method also includes: obtaining information about a first threshold and a second threshold from the base station, wherein when the number of occurrences of beam failure event instances reaches or exceeds the first threshold, the determination of candidate beams is initiated; when the number of occurrences of beam failure event instances reaches or exceeds the second threshold, a beam failure event is determined to have occurred and a beam failure recovery process is initiated, wherein the first threshold is less than or equal to the second threshold.

[0098] For example, a first counter and a second counter can be established to count the number of beam failure event instances. The count value of the first counter is compared with a first threshold, and the count value of the second counter is compared with a second threshold. Information about the first and second thresholds can be obtained from the base station via RRC signaling.

[0099] Figure 9 A flowchart of a method for wireless communication according to another embodiment of this application is shown. The method includes: providing a UE with configuration information comprising a first candidate beam set for beam failure recovery, the first candidate beam set including candidate beams of the serving cell and candidate beams of non-serving cells (S21); and obtaining from the UE information on identification candidate beams to be used for BFR determined by the UE based on the first candidate beam set and / or a second candidate beam set (S22), wherein the second candidate beam set includes beams of non-serving cells detected by the UE as candidate beams. This method can be performed, for example, at a base station.

[0100] For example, the second candidate beam set may include the beam corresponding to the SSB of the non-serving cell detected by the UE.

[0101] The configuration information may include the index of the reference signal corresponding to the candidate beam and the PCI of the cell corresponding to the reference signal. The reference signal may be, for example, one of SSB and CSI-RS. The candidate beams in the first candidate beam set include the beams corresponding to the reference signals configured by the base station for mobility management for the UE.

[0102] If the identified candidate beam includes a candidate beam from the second candidate beam set, the UE obtains information about the candidate beam and the PCI of the cell corresponding to the candidate beam. For example, the information about the identified candidate beam can be obtained by receiving the MAC CE on the PUSCH.

[0103] The method further includes: providing the UE with information about a first threshold and a second threshold, wherein when the number of occurrences of beam failure event instances reaches or exceeds the first threshold, the UE initiates the determination of candidate beams; when the number of occurrences of beam failure event instances reaches or exceeds the second threshold, the UE determines that a beam failure event has occurred and initiates a beam failure recovery procedure, wherein the first threshold is less than or equal to the second threshold. For example, the information about the first threshold and the second threshold can be provided to the UE via RRC signaling.

[0104] In addition, the UE can be provided with conditions for a candidate beam for a non-serving cell to be identified as a candidate beam. These conditions include: the beam quality of the candidate beam for the serving cell is lower than a predetermined quality; and the beam quality of the candidate beam for the non-serving cell is higher than the beam quality of the candidate beam for the serving cell by a predetermined value. For example, the UE can be provided with settings regarding the predetermined quality and the predetermined value.

[0105] If the candidate beam is identified as a candidate beam of a non-serving cell in the first candidate beam set and / or the second candidate beam set, in the BFR procedure, after receiving the BFRQ from the UE, a handover request is sent to the non-serving cell and a handover request confirmation is received from the non-serving cell, and RRC reconfiguration information for the non-serving cell is provided to the UE. The RRC reconfiguration information for the non-serving cell is included, for example, in the BFRR.

[0106] Note that the above methods can be used in combination or individually, and the details have been described in detail in the first and second embodiments, and will not be repeated here.

[0107] The technology disclosed herein can be applied to a variety of products.

[0108] For example, electronic device 200 can be implemented as various base stations. A base station can be implemented as any type of evolved NodeB (eNB) or gNB (5G base station). eNBs include, for example, macro eNBs and small eNBs. A small eNB can be an eNB covering a cell smaller than a macro cell, such as a pico eNB, micro eNB, and femtocell eNB. A similar situation can occur with gNBs. Alternatively, a base station can be implemented as any other type of base station, such as a NodeB and a Base Transceiver Station (BTS). A base station can include: a subject configured to control wireless communication (also called base station equipment); and one or more remote radio heads (RRHs) located in a different location from the subject. Furthermore, various types of user equipment can operate as base stations by temporarily or semi-persistently performing base station functions.

[0109] Electronic device 100 can be implemented as various user devices. User devices can be implemented as mobile terminals (such as smartphones, tablet PCs, laptop PCs, portable gaming terminals, portable / dongle-type mobile routers, and digital camera devices) or in-vehicle terminals (such as car navigation devices). User devices can also be implemented as terminals performing machine-to-machine (M2M) communication (also known as machine-type communication (MTC) terminals). Furthermore, user devices can be wireless communication modules (such as integrated circuit modules comprising a single chip) installed on each of the aforementioned terminals.

[0110] [Application examples of base stations]

[0111] (First application example)

[0112] Figure 10 This is a block diagram illustrating a first example of a schematic configuration of an eNB or gNB to which the technologies of this disclosure can be applied. Note that the following description uses an eNB as an example, but it can also be applied to a gNB. The eNB 800 includes one or more antennas 810 and a base station device 820. The base station device 820 and each antenna 810 can be connected to each other via RF cables.

[0113] Each of the antennas 810 includes one or more antenna elements (such as multiple antenna elements included in a multiple-input multiple-output (MIMO) antenna) and is used by the base station equipment 820 to transmit and receive wireless signals. Figure 10 As shown, the eNB 800 may include multiple antennas 810. For example, the multiple antennas 810 may be compatible with multiple frequency bands used by the eNB 800. Although Figure 10 An example is shown in which the eNB 800 includes multiple antennas 810, but the eNB 800 may also include a single antenna 810.

[0114] The base station equipment 820 includes a controller 821, a memory 822, a network interface 823, and a wireless communication interface 825.

[0115] The controller 821 can be, for example, a CPU or a DSP, and operates various higher-level functions of the base station equipment 820. For example, the controller 821 generates data packets based on data in signals processed by the wireless communication interface 825, and transmits the generated packets via the network interface 823. The controller 821 can bundle data from multiple baseband processors to generate bundled packets and transmit the generated bundled packets. The controller 821 may have logical functions that perform controls such as radio resource control, radio bearer control, mobility management, admission control, and scheduling. This control can be performed in conjunction with nearby eNBs or core network nodes. The memory 822 includes RAM and ROM, and stores programs executed by the controller 821 and various types of control data (such as terminal lists, transmission power data, and scheduling data).

[0116] Network interface 823 is a communication interface used to connect base station equipment 820 to core network 824. Controller 821 can communicate with core network nodes or other eNBs via network interface 823. In this case, eNB 800 and core network nodes or other eNBs can be connected to each other through logical interfaces (such as S1 and X2 interfaces). Network interface 823 can also be a wired communication interface or a wireless communication interface for wireless backhaul. If network interface 823 is a wireless communication interface, it can use a higher frequency band for wireless communication compared to the frequency band used by wireless communication interface 825.

[0117] The wireless communication interface 825 supports any cellular communication scheme (such as LTE and LTE-Advanced) and provides wireless connectivity to terminals located in the cell of eNB 800 via antenna 810. The wireless communication interface 825 typically includes, for example, a baseband (BB) processor 826 and RF circuitry 827. The BB processor 826 can perform, for example, encoding / decoding, modulation / demodulation, and multiplexing / demultiplexing, and performs various types of signal processing at layers such as L1, Media Access Control (MAC), Radio Link Control (RLC), and Packet Data Convergence Protocol (PDCP). Instead of controller 821, the BB processor 826 may have some or all of the above-described logical functions. The BB processor 826 may be a memory storing communication control programs, or a module including a processor and associated circuitry configured to execute programs. Updates can change the functionality of the BB processor 826. The module may be a card or blade inserted into a slot in base station equipment 820. Alternatively, the module may be a chip mounted on a card or blade. Meanwhile, the RF circuit 827 may include, for example, a mixer, a filter, and an amplifier, and transmits and receives wireless signals via the antenna 810.

[0118] like Figure 10 As shown, the wireless communication interface 825 may include multiple BB processors 826. For example, the multiple BB processors 826 may be compatible with multiple frequency bands used by the eNB 800. Figure 10 As shown, the wireless communication interface 825 may include multiple RF circuits 827. For example, the multiple RF circuits 827 may be compatible with multiple antenna elements. Although Figure 10 An example is shown in which the wireless communication interface 825 includes multiple BB processors 826 and multiple RF circuits 827, but the wireless communication interface 825 may also include a single BB processor 826 or a single RF circuit 827.

[0119] exist Figure 10 In the eNB 800 shown, the providing unit 201, obtaining unit 202, and transceiver of the electronic device 200 can be implemented by the wireless communication interface 825. At least some of the functions can also be implemented by the controller 821. For example, the controller 821 can enable the UE to recover to a non-serving cell when a beam failure event occurs by executing the functions of the providing unit 201 and the obtaining unit 202.

[0120] (Second application example)

[0121] Figure 11This is a block diagram illustrating a second example of a schematic configuration of an eNB or gNB to which the technologies of this disclosure can be applied. Note that, similarly, the following description uses an eNB as an example, but it can also be applied to a gNB. The eNB 830 includes one or more antennas 840, a base station device 850, and an RRH 860. The RRH 860 and each antenna 840 can be connected to each other via RF cables. The base station device 850 and the RRH 860 can be connected to each other via high-speed lines such as fiber optic cables.

[0122] Each of the antennas 840 includes one or more antenna elements (such as multiple antenna elements included in a MIMO antenna) and is used by the RRH 860 to transmit and receive wireless signals. Figure 11 As shown, the eNB 830 may include multiple antennas 840. For example, the multiple antennas 840 may be compatible with multiple frequency bands used by the eNB 830. Although Figure 11 An example is shown in which the eNB 830 includes multiple antennas 840, but the eNB 830 may also include a single antenna 840.

[0123] The base station equipment 850 includes a controller 851, a memory 852, a network interface 853, a wireless communication interface 855, and a connection interface 857. The controller 851, memory 852, and network interface 853 are connected to a reference... Figure 10 The controller 821, memory 822, and network interface 823 described are the same.

[0124] The wireless communication interface 855 supports any cellular communication scheme (such as LTE and LTE-Advanced) and provides wireless communication to terminals located in the sector corresponding to the RRH 860 via the RRH 860 and antenna 840. The wireless communication interface 855 may typically include, for example, a BB processor 856. In addition to the BB processor 856 being connected to the RF circuitry 864 of the RRH 860 via a connection interface 857, the BB processor 856 is connected to the reference... Figure 10 The BB processor 826 is described as identical. Figure 11 As shown, the wireless communication interface 855 may include multiple BB processors 856. For example, the multiple BB processors 856 may be compatible with multiple frequency bands used by the eNB 830. Although Figure 11 An example is shown in which the wireless communication interface 855 includes multiple BB processors 856, but the wireless communication interface 855 may also include a single BB processor 856.

[0125] Connection interface 857 is an interface for connecting base station device 850 (wireless communication interface 855) to RRH860. Connection interface 857 can also be a communication module for connecting base station device 850 (wireless communication interface 855) to the aforementioned high-speed line of RRH 860.

[0126] The RRH 860 includes a connectivity interface 861 and a wireless communication interface 863.

[0127] Connection interface 861 is an interface for connecting RRH 860 (wireless communication interface 863) to base station equipment 850. Connection interface 861 can also be a communication module for communication in the aforementioned high-speed line.

[0128] The wireless communication interface 863 transmits and receives wireless signals via antenna 840. The wireless communication interface 863 typically includes, for example, RF circuitry 864. RF circuitry 864 may include, for example, a mixer, a filter, and an amplifier, and transmits and receives wireless signals via antenna 840. Figure 11 As shown, the wireless communication interface 863 may include multiple RF circuits 864. For example, the multiple RF circuits 864 may support multiple antenna elements. Although Figure 11 An example is shown in which the wireless communication interface 863 includes multiple RF circuits 864, but the wireless communication interface 863 may also include a single RF circuit 864.

[0129] exist Figure 11 In the eNB 830 shown, the providing unit 201, acquiring unit 202, and transceiver of the electronic device 200 can be implemented by the wireless communication interface 855 and / or the wireless communication interface 863. At least a portion of the functions can also be implemented by the controller 851. For example, the controller 851 can enable the UE to recover to a non-serving cell when a beam failure event occurs by executing the functions of the providing unit 201 and the acquiring unit 202.

[0130] [Application examples related to user equipment]

[0131] (First application example)

[0132] Figure 12 This is a block diagram illustrating an example of a schematic configuration of a smartphone 900 to which the technologies of this disclosure can be applied. The smartphone 900 includes a processor 901, a memory 902, a storage device 903, an external connection interface 904, a camera device 906, a sensor 907, a microphone 908, an input device 909, a display device 910, a speaker 911, a wireless communication interface 912, one or more antenna switches 915, one or more antennas 916, a bus 917, a battery 918, and an auxiliary controller 919.

[0133] The processor 901 can be, for example, a CPU or a system-on-a-chip (SoC), and controls the application layer and other functions of the smartphone 900. The memory 902 includes RAM and ROM, and stores data and programs executed by the processor 901. The storage device 903 can include storage media such as semiconductor memory and hard disks. The external connectivity interface 904 is an interface for connecting external devices, such as memory cards and Universal Serial Bus (USB) devices, to the smartphone 900.

[0134] The camera device 906 includes an image sensor (such as a charge-coupled device (CCD) and complementary metal-oxide-semiconductor (CMOS)) and generates captured images. The sensor 907 may include a set of sensors, such as a measurement sensor, a gyroscope sensor, a magnetometer sensor, and an accelerometer sensor. The microphone 908 converts sound input to the smartphone 900 into an audio signal. The input device 909 includes, for example, a touch sensor, keypad, keyboard, buttons, or switches configured to detect touches on the screen of the display device 910 and receives operations or information input from the user. The display device 910 includes a screen (such as a liquid crystal display (LCD) and an organic light-emitting diode (OLED) display) and displays the output image of the smartphone 900. The speaker 911 converts the audio signal output from the smartphone 900 into sound.

[0135] The wireless communication interface 912 supports any cellular communication scheme (such as LTE and LTE-Advanced) and performs wireless communication. The wireless communication interface 912 typically includes, for example, a BB processor 913 and RF circuitry 914. The BB processor 913 can perform, for example, encoding / decoding, modulation / demodulation, and multiplexing / demultiplexing, and performs various types of signal processing for wireless communication. Meanwhile, the RF circuitry 914 can include, for example, mixers, filters, and amplifiers, and transmits and receives wireless signals via antenna 916. Note that although the figure shows a scenario where one RF link is connected to one antenna, this is only illustrative; scenarios where an RF link is connected to multiple antennas via multiple phase shifters are also included. The wireless communication interface 912 can be a single chip module on which the BB processor 913 and RF circuitry 914 are integrated. Figure 12 As shown, the wireless communication interface 912 may include multiple BB processors 913 and multiple RF circuits 914. Although Figure 12 An example is shown in which the wireless communication interface 912 includes multiple BB processors 913 and multiple RF circuits 914, but the wireless communication interface 912 may also include a single BB processor 913 or a single RF circuit 914.

[0136] In addition to cellular communication schemes, the wireless communication interface 912 can support other types of wireless communication schemes, such as short-range wireless communication schemes, near-field communication schemes, and wireless local area network (LAN) schemes. In this case, the wireless communication interface 912 may include a BB processor 913 and RF circuitry 914 for each wireless communication scheme.

[0137] Each of the antenna switches 915 switches the connection destination of the antenna 916 among multiple circuits (e.g., circuits for different wireless communication schemes) included in the wireless communication interface 912.

[0138] Each of the antennas 916 includes one or more antenna elements (such as multiple antenna elements included in a MIMO antenna) and is used by the wireless communication interface 912 to transmit and receive wireless signals. Figure 12 As shown, the smartphone 900 may include multiple antennas 916. Although Figure 12 An example is shown in which the smartphone 900 includes multiple antennas 916, but the smartphone 900 may also include a single antenna 916.

[0139] Furthermore, the smartphone 900 may include an antenna 916 for each wireless communication scheme. In this case, the antenna switch 915 can be omitted from the configuration of the smartphone 900.

[0140] Bus 917 connects processor 901, memory 902, storage device 903, external connection interface 904, camera device 906, sensor 907, microphone 908, input device 909, display device 910, speaker 911, wireless communication interface 912, and auxiliary controller 919 to each other. Battery 918 supplies power to... Figure 12 The various blocks of the smartphone 900 shown are powered, and the feeders are partially shown as dashed lines in the figure. The auxiliary controller 919 operates the minimum necessary functions of the smartphone 900, for example, in sleep mode.

[0141] exist Figure 12 In the illustrated smartphone 900, the acquisition unit 101, reporting unit 103, and transceiver of the electronic device 100 can be implemented by the wireless communication interface 933. At least a portion of the functions can also be implemented by the processor 921. For example, the processor 921 can enable the UE to recover to a non-serving cell when a beam failure event occurs by executing the functions of the acquisition unit 101, the determination unit 102, and the reporting unit 103.

[0142] (Second application example)

[0143] Figure 13This is a block diagram illustrating an example of a schematic configuration of a car navigation device 920 to which the technology of this disclosure can be applied. The car navigation device 920 includes a processor 921, a memory 922, a Global Positioning System (GPS) module 924, a sensor 925, a data interface 926, a content player 927, a storage medium interface 928, an input device 929, a display device 930, a speaker 931, a wireless communication interface 933, one or more antenna switches 936, one or more antennas 937, and a battery 938.

[0144] The processor 921 can be, for example, a CPU or a SoC, and controls the navigation functions and other functions of the car navigation device 920. The memory 922 includes RAM and ROM, and stores data and programs executed by the processor 921.

[0145] GPS module 924 uses GPS signals received from GPS satellites to measure the location (such as latitude, longitude, and altitude) of car navigation device 920. Sensor 925 may include a set of sensors, such as a gyroscope sensor, a geomagnetic sensor, and an air pressure sensor. Data interface 926 is connected to, for example, an in-vehicle network 941 via a terminal not shown, and acquires data generated by the vehicle (such as vehicle speed data).

[0146] Content player 927 reproduces content stored on storage media (such as CDs and DVDs), which is inserted into storage media interface 928. Input device 929 includes, for example, a touch sensor, button, or switch configured to detect touch on the screen of display device 930, and receives operations or information input from the user. Display device 930 includes a screen such as an LCD or OLED display and displays images or reproduced content for navigation functions. Speaker 931 outputs sound for navigation functions or reproduced content.

[0147] The wireless communication interface 933 supports any cellular communication scheme (such as LTE and LTE-Advanced) and performs wireless communication. The wireless communication interface 933 typically includes, for example, a BB processor 934 and RF circuitry 935. The BB processor 934 can perform, for example, encoding / decoding, modulation / demodulation, and multiplexing / demultiplexing, and performs various types of signal processing for wireless communication. Meanwhile, the RF circuitry 935 can include, for example, a mixer, filters, and amplifiers, and transmits and receives wireless signals via an antenna 937. The wireless communication interface 933 can also be a chip module on which the BB processor 934 and RF circuitry 935 are integrated. Figure 13 As shown, the wireless communication interface 933 may include multiple BB processors 934 and multiple RF circuits 935. Although Figure 13An example is shown in which the wireless communication interface 933 includes multiple BB processors 934 and multiple RF circuits 935, but the wireless communication interface 933 may also include a single BB processor 934 or a single RF circuit 935.

[0148] In addition to cellular communication schemes, the wireless communication interface 933 can support other types of wireless communication schemes, such as short-range wireless communication schemes, near-field communication schemes, and wireless LAN schemes. In this case, for each wireless communication scheme, the wireless communication interface 933 may include a BB processor 934 and an RF circuit 935.

[0149] Each of the antenna switches 936 switches the connection destination of the antenna 937 among multiple circuits (such as circuits for different wireless communication schemes) included in the wireless communication interface 933.

[0150] Each of the antennas 937 includes one or more antenna elements (such as multiple antenna elements included in a MIMO antenna) and is used by the wireless communication interface 933 to transmit and receive wireless signals. Figure 13 As shown, the car navigation device 920 may include multiple antennas 937. Although Figure 13 An example is shown in which the car navigation device 920 includes multiple antennas 937, but the car navigation device 920 may also include a single antenna 937.

[0151] Furthermore, the car navigation device 920 may include an antenna 937 for each wireless communication scheme. In this case, the antenna switch 936 can be omitted from the configuration of the car navigation device 920.

[0152] Battery 938 via feeder to Figure 13 The various blocks of the car navigation device 920 shown are powered, and the feeders are partially shown as dashed lines in the figure. Battery 938 accumulates the power supplied from the vehicle.

[0153] exist Figure 13 In the illustrated car navigation device 920, the acquisition unit 101, reporting unit 103, and transceiver of the electronic device 100 can be implemented by the wireless communication interface 912. At least a portion of the functions can also be implemented by the processor 901 or the auxiliary controller 919. For example, the processor 901 or the auxiliary controller 919 can enable the UE to recover to a non-serving cell when a beam failure event occurs by executing the functions of the acquisition unit 101, the determination unit 102, and the reporting unit 103.

[0154] The technology disclosed herein can also be implemented as an in-vehicle system (or vehicle) 940 comprising one or more of the following blocks: a car navigation device 920, an in-vehicle network 941, and a vehicle module 942. The vehicle module 942 generates vehicle data (such as vehicle speed, engine speed, and fault information) and outputs the generated data to the in-vehicle network 941.

[0155] The basic principles of the present invention have been described above in conjunction with specific embodiments. However, it should be noted that those skilled in the art will understand that all or any step or component of the method and apparatus of the present invention can be implemented in any computing device (including processors, storage media, etc.) or network of computing devices, in the form of hardware, firmware, software or a combination thereof. This can be achieved by those skilled in the art using their basic circuit design knowledge or basic programming skills after reading the description of the present invention.

[0156] Furthermore, the present invention also proposes a program product storing machine-readable instruction code. When the instruction code is read and executed by a machine, the method described above according to embodiments of the present invention can be performed.

[0157] Accordingly, the storage medium used to carry the program product storing machine-readable instruction code is also included in the disclosure of this invention. The storage medium includes, but is not limited to, floppy disks, optical disks, magneto-optical disks, memory cards, memory sticks, etc.

[0158] When the present invention is implemented via software or firmware, the transmission from a storage medium or network to a computer with a dedicated hardware architecture (e.g., [missing information]). Figure 14 The general-purpose computer 1400 shown is equipped with the programs that constitute the software, and when various programs are installed, the computer is able to perform various functions, etc.

[0159] exist Figure 14 In this system, the Central Processing Unit (CPU) 1401 performs various processes based on programs stored in the Read-Only Memory (ROM) 1402 or programs loaded into the Random Access Memory (RAM) 1403 from the Storage Section 1408. The RAM 1403 also stores data required as needed when the CPU 1401 performs various processes, etc. The CPU 1401, ROM 1402, and RAM 1403 are interconnected via a bus 1404. An Input / Output Interface 1405 is also connected to the bus 1404.

[0160] The following components are connected to the input / output interface 1405: input section 1406 (including keyboard, mouse, etc.), output section 1407 (including monitor, such as cathode ray tube (CRT), liquid crystal display (LCD), etc., and speakers, etc.), storage section 1408 (including hard disk, etc.), and communication section 1409 (including network interface card, such as LAN card, modem, etc.). The communication section 1409 performs communication processing via a network, such as the Internet. If necessary, a drive 1410 may also be connected to the input / output interface 1405. Removable media 1411, such as disk, optical disk, magneto-optical disk, semiconductor memory, etc., are installed on the drive 1410 as needed, so that computer programs read from them can be installed into the storage section 1408 as needed.

[0161] When the above series of processes are implemented by software, the program constituting the software is installed from a network such as the Internet or a storage medium such as removable media 1411.

[0162] Those skilled in the art will understand that such storage media are not limited to Figure 14 The illustration shows a removable medium 1411 containing a program, distributed separately from the device to provide the program to the user. Examples of removable media 1411 include disks (including floppy disks (registered trademark)), optical disks (including optical disc read-only memory (CD-ROM) and digital versatile disks (DVD)), magneto-optical disks (including mini-discs (MD) (registered trademark)), and semiconductor memory. Alternatively, the storage medium may be ROM 1402, a hard disk included in storage section 1408, etc., containing programs and distributed to the user along with the device containing them.

[0163] It should also be noted that in the apparatus, method, and system of the present invention, the components or steps can be decomposed and / or recombined. These decompositions and / or recombinations should be considered equivalent solutions of the present invention. Furthermore, the steps performing the above series of processes can naturally be executed in the order described, but are not necessarily required to be executed in chronological order. Some steps can be performed in parallel or independently of each other.

[0164] Finally, it should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Furthermore, unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element. While embodiments of the present invention have been described in detail above with reference to the accompanying drawings, it should be understood that the embodiments described above are merely illustrative and do not constitute a limitation thereof. Various modifications and changes can be made to the above embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention is defined only by the appended claims and their equivalents.

Claims

1. An electronic device for wireless communication, comprising: The processing circuit is configured as follows: The configuration information containing a first candidate beam set for beam failure recovery is obtained from the base station. The first candidate beam set includes candidate beams of the serving cell and candidate beams of non-serving cells. as well as Based on the first candidate beam set and the second candidate beam set, identification candidate beams for beam failure recovery are determined. The second candidate beam set includes beams from non-serving cells detected by the user equipment itself, and the beams in the second candidate beam set are not included in the first candidate beam set. Wherein, if the identified candidate beam includes candidate beams from the second candidate beam set, the processing circuit is further configured to provide the base station with information about the candidate beams included in the identified candidate beam set that belong to the second candidate beam set, as well as the physical cell identifier of the cell corresponding to the candidate beam.

2. The electronic device according to claim 1, wherein, The second candidate beam set includes beams corresponding to synchronization signal blocks of non-serving cells detected by the user equipment.

3. The electronic device according to claim 1, wherein, The processing circuit is configured to determine the candidate beams of non-serving cells in the first candidate beam set and / or the second candidate beam set as the identified candidate beams under the following conditions: The beam quality of the candidate beam in the serving cell is lower than the predetermined quality; as well as The beam quality of the candidate beam of the non-serving cell is higher than the beam quality of the candidate beam of the serving cell by a predetermined value.

4. The electronic device according to claim 3, wherein, The processing circuit is also configured to obtain settings regarding the predetermined quality and the predetermined value from the base station.

5. The electronic device according to claim 1, wherein, In the case where the identified candidate beam is a candidate beam of a non-serving cell in the first candidate beam set and / or the second candidate beam set, the processing circuit is configured to obtain radio resource control reconfiguration information for the non-serving cell from the base station during the beam failure recovery process.

6. The electronic device according to claim 5, wherein, The radio resource control reconfiguration information for the non-serving cell is included in the beam failure recovery request response sent by the base station.

7. The electronic device according to claim 1, wherein, The configuration information includes the index of the reference signal corresponding to the candidate beam and the physical cell identifier of the cell corresponding to the reference signal.

8. The electronic device according to claim 7, wherein, The reference signal is one of the synchronization signal block and the channel state information reference signal.

9. The electronic device according to claim 7, wherein, The candidate beams in the first candidate beam set include the beams corresponding to the reference signals configured by the base station for mobility management for the user equipment.

10. The electronic device according to claim 1, wherein, The processing circuit is further configured to determine the physical cell identifier of the cell corresponding to the candidate beam in the second candidate beam set by decoding the primary synchronization signal / secondary synchronization signal.

11. The electronic device according to claim 1, wherein, The processing circuitry is configured to provide the identification candidate beam information by transmitting MAC CE on the physical uplink shared channel.

12. The electronic device according to claim 1, wherein, The processing circuit is also configured to obtain information about the first threshold and the second threshold from the base station. Specifically, when the number of beam failure event instances reaches or exceeds the first threshold, the processing circuit initiates the determination of candidate beams; when the number of beam failure event instances reaches or exceeds the second threshold, the processing circuit determines that a beam failure event has occurred and initiates the beam failure recovery process. Wherein, the first threshold is less than or equal to the second threshold.

13. The electronic device according to claim 12, wherein, The processing circuit is configured to establish a first counter and a second counter to count the number of times the beam failure event instances occur, and to compare the count value of the first counter with the first threshold and the count value of the second counter with the second threshold.

14. The electronic device according to claim 12, wherein, The processing circuit is configured to obtain the information about the first threshold and the second threshold from the base station via radio resource control signaling.

15. An electronic device for wireless communication, comprising: The processing circuit is configured as follows: The user equipment is provided with configuration information including a first candidate beam set for beam failure recovery, the first candidate beam set including candidate beams of the serving cell and candidate beams of non-serving cells; as well as Information is obtained from the user equipment regarding the candidate beams to be used for beam failure recovery, determined by the user equipment based on the first candidate beam set and the second candidate beam set. The second candidate beam set includes beams of non-serving cells detected by the user equipment itself, and the beams in the second candidate beam set are not included in the first candidate beam set. Wherein, if the identified candidate beam includes a candidate beam from the second candidate beam set, the processing circuit is further configured to obtain from the user equipment information of the candidate beam included in the identified candidate beam that belongs to the second candidate beam set and the physical cell identifier of the cell corresponding to the candidate beam.

16. The electronic device according to claim 15, wherein, The second candidate beam set includes the beams corresponding to the synchronization signal blocks of the non-serving cells detected by the user equipment.

17. The electronic device according to claim 15, wherein, The configuration information includes the index of the reference signal corresponding to the candidate beam and the physical cell identifier of the cell corresponding to the reference signal.

18. The electronic device according to claim 17, wherein, The reference signal is one of the synchronization signal block and the channel state information reference signal.

19. The electronic device according to claim 17, wherein, The candidate beams in the first candidate beam set include the beams corresponding to the reference signals configured by the base station for mobility management for the user equipment.

20. The electronic device according to claim 15, wherein, The processing circuit is configured to acquire information about the identified candidate beam by receiving MAC CE on the physical uplink shared channel.

21. The electronic device according to claim 15, wherein, The processing circuit is also configured to provide the user equipment with information about the first threshold and the second threshold. Specifically, when the number of beam failure event instances reaches or exceeds the first threshold, the user equipment initiates the determination of candidate beams; when the number of beam failure event instances reaches or exceeds the second threshold, the user equipment determines that a beam failure event has occurred and initiates the beam failure recovery process. Wherein, the first threshold is less than or equal to the second threshold.

22. The electronic device according to claim 21, wherein, The processing circuit is configured to provide the user equipment with the information about the first threshold and the second threshold via radio resource control signaling.

23. The electronic device according to claim 15, wherein, The processing circuitry is further configured to provide the user equipment with conditions under which a candidate beam for a non-serving cell is identified as the identification candidate beam, the conditions including: The beam quality of the candidate beam in the serving cell is lower than the predetermined quality; and The beam quality of the candidate beam of the non-serving cell is higher than the beam quality of the candidate beam of the serving cell by a predetermined value.

24. The electronic device according to claim 23, wherein, The processing circuit is also configured to provide the user equipment with settings regarding the predetermined quality and the predetermined value.

25. The electronic device according to claim 15, wherein, In the case where the identified candidate beam is a candidate beam of a non-serving cell in the first candidate beam set and / or the second candidate beam set, the processing circuit is configured to send a handover request to the non-serving cell and receive a handover request confirmation from the non-serving cell after receiving a beam failure recovery request from the user equipment in the beam failure recovery procedure, and to provide the user equipment with radio resource control reconfiguration information for the non-serving cell.

26. The electronic device according to claim 25, wherein, The processing circuitry is configured to provide the user equipment with radio resource control reconfiguration information for the non-serving cell, including it in a beam failure recovery request response.

27. A method for wireless communication, comprising: The configuration information containing a first candidate beam set for beam failure recovery is obtained from the base station. The first candidate beam set includes candidate beams of the serving cell and candidate beams of non-serving cells. as well as Based on the first candidate beam set and the second candidate beam set, identification candidate beams for beam failure recovery are determined, wherein the second candidate beam set includes beams of non-serving cells detected by the user equipment itself as candidate beams, and wherein the beams in the second candidate beam set are not included in the first candidate beam set. Wherein, when the identified candidate beam includes candidate beams in the second candidate beam set, the base station is provided with information about the candidate beams included in the identified candidate beam set that belong to the second candidate beam set, as well as the physical cell identifier of the cell corresponding to the candidate beam.

28. A method for wireless communication, comprising: The user equipment is provided with configuration information including a first candidate beam set for beam failure recovery, the first candidate beam set including candidate beams of the serving cell and candidate beams of non-serving cells; as well as Information is obtained from the user equipment regarding the candidate beams to be used for beam failure recovery, determined by the user equipment based on the first candidate beam set and the second candidate beam set. The second candidate beam set includes beams of non-serving cells detected by the user equipment itself, and the beams in the second candidate beam set are not included in the first candidate beam set. Wherein, when the identified candidate beam includes candidate beams in the second candidate beam set, information of candidate beams included in the identified candidate beam set that belong to the second candidate beam set and the physical cell identifier of the cell corresponding to the candidate beam are obtained from the user equipment.

29. A computer-readable storage medium having stored thereon computer-executable instructions that, when executed, perform the method for wireless communication according to claim 27 or 28.

30. A computer program product comprising a computer program / instructions, wherein, When the computer program / instructions are executed by the processor, they implement the method for wireless communication as described in claim 27 or 28.

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