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WO2020143568A1 - 电子装置、无线通信方法和计算机可读介质 - Google Patents

电子装置、无线通信方法和计算机可读介质 Download PDF

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Publication number
WO2020143568A1
WO2020143568A1 PCT/CN2020/070442 CN2020070442W WO2020143568A1 WO 2020143568 A1 WO2020143568 A1 WO 2020143568A1 CN 2020070442 W CN2020070442 W CN 2020070442W WO 2020143568 A1 WO2020143568 A1 WO 2020143568A1
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WO
WIPO (PCT)
Prior art keywords
cell
information
electronic device
processing circuit
beam failure
Prior art date
Application number
PCT/CN2020/070442
Other languages
English (en)
French (fr)
Inventor
徐瑨
任文静
周颖
李东儒
崔琪楣
曹建飞
Original Assignee
索尼公司
徐瑨
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 索尼公司, 徐瑨 filed Critical 索尼公司
Priority to CN202410547278.4A priority Critical patent/CN118574146A/zh
Priority to CN202080008078.1A priority patent/CN113273241B/zh
Priority to US17/295,877 priority patent/US11804888B2/en
Publication of WO2020143568A1 publication Critical patent/WO2020143568A1/zh
Priority to US18/243,676 priority patent/US12143190B2/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/04—Arrangements for maintaining operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0096—Indication of changes in allocation
    • H04L5/0098—Signalling of the activation or deactivation of component carriers, subcarriers or frequency bands
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0686—Hybrid systems, i.e. switching and simultaneous transmission
    • H04B7/0695—Hybrid systems, i.e. switching and simultaneous transmission using beam selection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/046—Wireless resource allocation based on the type of the allocated resource the resource being in the space domain, e.g. beams
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H04W72/231—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal the control data signalling from the layers above the physical layer, e.g. RRC or MAC-CE signalling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access
    • H04W74/0841—Random access procedures, e.g. with 4-step access with collision treatment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0866—Non-scheduled access, e.g. ALOHA using a dedicated channel for access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/19—Connection re-establishment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0042—Arrangements for allocating sub-channels of the transmission path intra-user or intra-terminal allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/002—Transmission of channel access control information
    • H04W74/004—Transmission of channel access control information in the uplink, i.e. towards network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/15—Setup of multiple wireless link connections

Definitions

  • the present disclosure generally relates to the field of wireless communication, and more particularly, to an electronic device for wireless communication, a wireless communication method, and a computer-readable medium.
  • the user equipment (UE) beam failure recovery (BFR) process includes beam failure detection (BFD), new candidate beam identification (NBI), beam failure recovery request (BFRQ) transmission, and monitoring base station (gNB) response to beam failure recovery request .
  • BFD beam failure detection
  • NBI new candidate beam identification
  • BFRQ beam failure recovery request
  • gNB monitoring base station
  • a beam failure condition can be determined.
  • the UE identifies candidate beams, and may identify one physical random access channel (PRACH) resource for carrying the BFR request based on the newly identified beam.
  • PRACH physical random access channel
  • a UE may be configured with multiple cells, including a primary cell (PCell) and a secondary cell (SCell), where the SCell may include an SCell with an uplink (UL) and only a downlink ( DL) SCell.
  • the UE performs radio resource control (RRC) communication with the base station (gNB) through the PCell.
  • RRC radio resource control
  • an electronic device for wireless communication includes a processing circuit.
  • the processing circuit is configured to control to perform carrier aggregation communication with the base station through at least the first cell and the second cell.
  • the processing circuit is also configured to control to transmit the first information for beam failure recovery of the second cell to the base station through the first cell.
  • a wireless communication method includes the step of performing carrier aggregation communication with a base station through at least a first cell and a second cell. The method further includes the step of sending the first information for beam failure recovery of the second cell to the base station through the first cell.
  • an electronic device for wireless communication includes a processing circuit.
  • the processing circuit is configured to control to perform carrier aggregation communication with the user equipment through at least the first cell and the second cell.
  • the processing circuit is also configured and controlled to receive the first information sent by the user equipment through the first cell for beam failure recovery of the second cell.
  • a wireless communication method includes the step of performing carrier aggregation communication with a user equipment through at least a first cell and a second cell. The method further includes the step of receiving first information sent by the user equipment through the first cell for beam failure recovery of the second cell.
  • a computer-readable medium includes executable instructions, which when executed by an information processing device, cause the information processing device to perform the above method.
  • BFR can be effectively performed for different cells in a CA scenario.
  • FIG. 1 is a block diagram showing a configuration example of an electronic device for wireless communication according to an embodiment of the present invention
  • FIG. 2 is a block diagram showing a configuration example of an electronic device for wireless communication according to another embodiment of the present invention.
  • FIG. 3 is a flowchart illustrating an example of a process of a wireless communication method according to an embodiment of the present invention
  • FIG. 4 is a block diagram showing a configuration example of an electronic device for wireless communication according to an embodiment of the present invention.
  • FIG. 5 is a block diagram showing a configuration example of an electronic device for wireless communication according to another embodiment of the present invention.
  • FIG. 6 is a flowchart illustrating an example of a process of a wireless communication method according to an embodiment of the present invention
  • FIG. 7 is a block diagram showing an exemplary structure of a computer that implements the method and apparatus of the present disclosure
  • FIG. 8 is a block diagram showing an example of a schematic configuration of a smartphone to which the technology of the present disclosure can be applied;
  • FIG. 9 is a block diagram showing an example of a schematic configuration of gNB to which the technology of the present disclosure can be applied;
  • FIG. 11 is a schematic diagram showing an example scenario of BFR
  • FIG. 12 is a schematic diagram showing an example scenario of BFR
  • FIG. 13 is a schematic diagram showing an example scenario of BFR
  • FIG. 14 is a schematic diagram for explaining an example of cell grouping
  • 15 is a schematic diagram showing an example of multiple cells
  • 16 is a schematic diagram for explaining an example of BFR of a grouped cell
  • FIG. 17 is a schematic diagram for explaining an example of a cell indication method
  • FIG. 18 is a schematic diagram for explaining an example of a cell indication method
  • 19 is a schematic diagram for explaining an example of an indication method of candidate beams
  • 20 is a schematic diagram for explaining an example of multi-cell BFR
  • 21 is a schematic diagram for explaining an example of multi-cell BFR.
  • FIG. 22 is a signaling flowchart showing an example of the process of BFR.
  • the electronic device 100 for wireless communication includes a processing circuit 110.
  • the processing circuit 110 may be implemented as a specific chip, a chipset, a central processing unit (CPU), or the like, for example.
  • the electronic device according to this embodiment may be implemented on the user equipment side, for example.
  • the processing circuit 110 includes a first control unit 111 and a second control unit 113. It should be noted that although the first control unit 111 and the second control unit 113 are shown in the form of functional blocks in the drawings, it should be understood that the functions of each unit can also be implemented by the processing circuit as a whole, and not necessarily This is achieved by processing discrete actual components in the circuit. In addition, although the processing circuit is shown in a block in the figure, the electronic device may include a plurality of processing circuits, and the functions of each unit may be distributed into the plurality of processing circuits so that the plurality of processing circuits cooperate to perform these functions.
  • the first control unit 111 is configured to control to perform carrier aggregation communication with the base station through at least the first cell and the second cell.
  • the second control unit 113 is configured to control to transmit the first information for beam failure recovery of the second cell to the base station through the first cell.
  • the first cell may include a primary cell (PCell) or a secondary cell (SCell) with an uplink
  • the second cell may include an SCell without an uplink
  • the UE may be configured with multiple cells.
  • a UE can be configured with up to 32 cells, including 1 PCell and 31 SCells.
  • the conventional BFR process described with reference to FIG. 10 is applicable to PCell, but not applicable to all SCells, for example, an SCell having only a downlink. With this embodiment, it is possible to effectively perform the BFR process for various cells in the CA scenario.
  • the embodiments of the present invention are not limited to sending BFR information through the PCell or the SCell with uplink for the SCell without uplink.
  • the embodiments of the present invention are not limited to sending BFR information through the PCell or the SCell with uplink for the SCell without uplink.
  • the second cell may also include PCell or SCell with uplink.
  • the first information may include identification information of the second cell where the beam failure occurs and identification information of the candidate beam used for beam failure recovery.
  • the identification information of the second cell and the identification information of the candidate beam may be sent through a physical uplink control channel (PUCCH).
  • PUCCH physical uplink control channel
  • an indication bit may be included in the PUCCH, and the indication bit indicates that the PUCCH includes BFR information.
  • BFR information can be sent to the base station through the cell itself.
  • the second control unit 113 may be configured to control to send second information for beam failure recovery of the first cell to the base station through the first cell.
  • the BFR information may only include identification information of the candidate beam.
  • the above second information may be sent through a physical random access channel (PRACH).
  • PRACH physical random access channel
  • BFRQ beam failure recovery request
  • FIG. 11 shows an example situation where a beam failure occurs on an SCell with uplink.
  • BFRQ can be sent to the base station (eg, gNB) through the SCell.
  • BFRQ can be sent through PRACH or PUCCH.
  • the BFRQ may be sent to the base station through PCell (as shown in FIG. 12) or SCell with an uplink (as shown in FIG. 13).
  • PCell as shown in FIG. 12
  • SCell with an uplink
  • the BFRQ may be sent through PRACH, and the BFRQ may contain candidate beam indication information without the need to include the identification of the cell where the beam failure occurred.
  • PRACH may not be enough to carry the information, so the BFRQ can be sent through the PUCCH.
  • one UE can be configured with multiple types of cells, such as PCell (capable of RRC communication with the base station), SCell with uplink, and SCell with downlink only, according to one embodiment, all of the UE The cells are grouped, and the BFR process is performed based on the grouping.
  • the electronic device 200 includes a processing circuit 210.
  • the processing circuit 210 includes a first control unit 211, a second control unit 213, and a third control unit 215.
  • the functional configurations of the first control unit 211 and the second control unit 213 are similar to the first control unit 111 and the second control unit 113 described earlier with reference to FIG. 1.
  • the third control unit 215 is configured to control to receive grouping information indicating a plurality of cell subsets of a cell set used for carrier aggregation communication, each cell subset containing at least one first cell.
  • the grouping information may be determined by the base station and sent to the UE through RRC control signaling, for example. Accordingly, according to one embodiment, the third control unit 215 may be configured to control to receive grouping information from the base station through RRC signaling.
  • FIG. 14 shows an example of grouping all cells of the UE.
  • all cells of the UE are divided into three groups based on the total number of PCells and SCells with uplinks, each group contains a PCell or SCell with uplinks, and also includes a number of downlink only SCell. More specifically, in the example of FIG. 14, group 1 contains PCell and three downlink only SCells, and group 2 and group 3 each contain one uplink SCell and three downlink only SCells .
  • the cell grouping may be determined according to different rules. For example, co-located cells can be grouped into the same cell subset.
  • the UE is connected to 4 cells, where cell 1 and cell 2 are co-located cells, and cell 3 and cell 4 are co-located cells. Assuming that cell 1 and cell 3 are SCells with uplink, and cell 2 and cell 4 are SCells with downlink only, according to the above rules, cell 1 and cell 2 can be divided into a group, cell 3 and cell 4 Divided into a group.
  • the cell molecular rule is not limited to this.
  • cell 1 and cell 4 can be divided into a group
  • cell 3 and cell 2 can be divided into a group.
  • the UE when the UE detects a beam failure, if the cell where the beam failure occurs is a PCell or an SCell with an uplink, it can send a BFRQ through the cell. On the other hand, if the cell where the beam failure occurs is an SCell with downlink only, the UE can determine the group to which the cell where the beam failure occurs belongs, and perform the BFR process according to the cell grouping, for example, by using the PCell or the same group as the cell The SCell with uplink sends BFRQ.
  • the BFRQ can be sent through the PCell in Group 1; if the SCell with uplink in Group 2 has a beam failure, it can pass The SCell sends BFRQ.
  • FIG. 22 shows an example process of BFR.
  • the UE performs beam failure detection; when a beam failure is detected, it informs the PCell or SCell with uplink of the beam failure information; next, the PCell or SCell with uplink notified to the base station (e.g. The sending and receiving point (TRP) sends the BFRQ, which contains the failed cell indication and the candidate beam indication.
  • TRP sending and receiving point
  • the third control unit 215 may also be configured to control to receive information on the correspondence between the cell and the cell identity
  • the correspondence may include the correspondence between the physical cell identity and the defined global identity , Where the global identification is used to distinguish each cell in the cell set.
  • the correspondence relationship may include a correspondence relationship between a physical cell identifier and a defined group identifier and local identifier, where the group identifier is used to distinguish each cell subset, and the local identifier is used to distinguish each cell in the same cell subset.
  • the first information sent to the base station may include the global identity of the second cell.
  • the first information sent to the base station may include the local identification of the second cell in its cell subset, and the base station may determine the second cell according to the first cell used to send the first information and the local identification.
  • a UE can be configured with up to 32 cells, including a PCell and 31 SCells, so a 5-bit global ID can be configured for each cell, as shown in Table 1 below.
  • the UE sends the BFRQ, it can use the global ID to indicate different cells.
  • the physical cell identifier (PCI) can be obtained through RRC configuration physCellId.
  • the RRC parameter globalCellId can be introduced to indicate the cell configured for the UE, and the correspondence between PCI and global ID can be established.
  • the globalCellId parameters can be assigned to these three cells through RRC, as shown in Table 2.
  • each cell in the same group may be assigned a local ID, as shown in Table 3.
  • the local IDs of cells with uplinks can be 0, and the local IDs of other cells can be 1, 2, ....
  • the group ID and local ID of the cell can be configured by the base station through RRC parameters, for example.
  • the RRC signaling includes the cellGroupId parameter, which is used to indicate whether the cell is suitable for the primary cell group or the secondary cell group.
  • a new RRC parameter GroupID may be defined to indicate the group ID of all cells connected to the UE, and the local ID may be configured through the LocalID parameter.
  • each cell can be accurately indicated.
  • the number of cell groups k 3, the number of SCells with only downlink is 6, and the number of cells in each group is 3. If the cell with group ID 1 (binary representation is 01) and local ID 2 (secondary representation is 10) has a beam failure, the BFRQ is sent through the cell with group ID 1 and local ID 0, and the faulty cell’s
  • the base station can know the group ID of the failed cell according to the cell that sent the BFRQ.
  • the base station may store group IDs of all cells with uplinks, as shown in FIG. 18. In this case, when sending the BFRQ, it is possible to omit sending the group ID to the base station, and only need to include the local ID of the failed cell.
  • the failed cell and the cell that transmits BFRQ are in the same group, and the UE only needs to transmit the local ID of the failed cell in BFRQ and does not need to transmit the group ID.
  • the above describes the indication manner of the identification information of the cell where the beam failure occurs.
  • the indication method of the identification information of the candidate beam used for beam failure recovery will be described.
  • the identification information of the candidate beam includes the local identification of the candidate beam in the second cell.
  • the base station may determine candidate beams based on the second cell and the local identification.
  • the candidate beam ID may correspond to the PRACH sequence one by one, and the candidate beam may be indicated through the PRACH.
  • the number of candidate beams is correspondingly large, so the required PRACH resources will be very large. For example, if the PRACH resource is equal to the number of candidate beams, each cell needs up to 64 PRACH resources, and a total of 320 PRACH resources need to be configured. Therefore, it may be preferable to use PUCCH to transmit candidate beam information.
  • PUCCH carries control information such as channel status indication (CSI), hybrid automatic repeat request (HARQ), and scheduling request (SR). If the BFRQ is sent through the PUCCH, a beam failure indication may be included in the PUCCH to let the base station know that the next received information is the BFRQ and not the other control information mentioned above.
  • CSI channel status indication
  • HARQ hybrid automatic repeat request
  • SR scheduling request
  • an all-zero sequence of N symbols may be used as a beam failure indicator. Since the symbol length of the PUCCH format is 1-2 or 4-14, in order to distinguish from these formats, and at the same time ensure that the beam fault indication will not be too long, for example, N can be set to 3.
  • the UE may send the failed cell ID and candidate beam ID to the base station.
  • the indication of the failed cell ID can refer to the foregoing exemplary embodiment.
  • the correspondence between PUCCH resources and candidate beam IDs may be established in a group-based manner.
  • the group here refers to a cell, that is, a beam of one cell is used as a group.
  • the PUCCH sequence no longer corresponds to a specific candidate beam, but can be regarded as corresponding to a specific beam set.
  • each cell can be configured with up to 64 beams, k candidate beams with the same local ID can be regarded as a set of candidate beams, and a specific PUCCH sequence can be corresponding to this Candidate beam set.
  • each PUCCH sequence corresponds to a set of candidate beams in which each beam has the same local ID in the respective cell.
  • Table 5 shows a case where two cells connected to the UE are each configured with three candidate beams, and each candidate beam has a local ID in its cell.
  • candidate beams with the same local ID may correspond to the same PUCCH sequence, as shown in Table 6.
  • each PUCCH sequence corresponds to a group of candidate beams with the same local ID, and the order of the candidate beams in the group may be based on the corresponding cell ID, for example.
  • candidate beams can be determined. For example, in the example of FIG. 19, in the case where the PUCCH sequence is 101 and the cell ID is 3, it may be determined that the local ID of the cell whose candidate beam is ID 3 is the beam.
  • a beam failure indication may be transmitted through the SR
  • the failed beam ID may be transmitted through the defined PUCCH format
  • the candidate beam ID may be transmitted through the defined PUCCH format.
  • the UE only needs to report the PUCCH sequence to indicate the local ID of the candidate beam (which can be regarded as the candidate beam set ID). Accordingly, the number of bits required in PUCCH can be reduced.
  • one UE can be configured with multiple cells, so there is a possibility that beam failures will occur simultaneously in different cells.
  • an example method of BFR in this case will be explained.
  • the beam failure recovery request of the primary cell may be preferentially made.
  • the beam failure recovery request of the secondary cell with uplink may be preferentially performed. Since the RRC connection is performed through the primary cell, in the BFR, a higher priority can be given to the primary cell.
  • a secondary cell with an uplink may be used to carry uplink control signaling, which is more important for the UE, and therefore a secondary cell with an uplink may be given a higher priority.
  • the respective first cells in the two or more cell subsets may be used (For example, a primary cell or a secondary cell with an uplink) Simultaneously make beam failure recovery requests.
  • the first situation is that at most one beam failure occurs in each group
  • the second situation is that more than one beam failure occurs in some groups .
  • the primary cell in each group or the secondary cell with uplink can be simultaneously Send BFRQ.
  • the failed cell indication and the candidate beam indication can be provided according to the foregoing embodiment, for example, through PUCCH. Even if the same PUCCH sequence is transmitted through two cells, the base station can distinguish the candidate beams reported by each cell due to the indication of the failed cell ID. It should be noted that in this case, if the same PUCCH sequence is selected for two cells, the UE should not ignore any of them, but should send the PUCCH sequence through the two cells so that the base station can obtain the corresponding information.
  • the BFRQ may be transmitted simultaneously through the primary cell or the secondary cell with uplink in each group, and each group transmits only one BFRQ at a time.
  • the BFRQ of the secondary cell with uplink may be transmitted preferentially (for example, through the primary cell).
  • the cell 0 and the cell 2 of the group 1 when the cell 0 and the cell 2 of the group 1, the cell 1 of the group 2 and the cell 3 of the group 3 simultaneously have a beam failure, the cell 0 of the group 1 and the cell 1 of the group 2 and The BFRQ of cell 3 of group 3 can then send the BFRQ of cell 2 of group 1.
  • the wireless communication method includes the step S310 of performing carrier aggregation communication with the base station through at least the first cell and the second cell and sending the beam failure recovery for the second cell to the base station through the first cell Step S320 of the first information.
  • the electronic device 400 for wireless communication includes a processing circuit 410 including a first control unit 411 and a second control unit 413.
  • the first control unit 411 is configured to control to perform carrier aggregation communication with the user equipment through at least the first cell and the second cell.
  • the second control unit 413 is configured to control to receive the first information sent by the user equipment through the first cell for beam failure recovery of the second cell.
  • the first cell may include a primary cell or a secondary cell with uplink
  • the second cell may include a secondary cell without uplink.
  • the first information may include identification information of the second cell where the beam failure occurs and identification information of the candidate beam used for beam failure recovery.
  • the second control unit 413 may be configured to control to receive the identification information of the second cell and the identification information of the candidate beam through the PUCCH.
  • the second control unit 413 may also be configured to control to receive second information for beam failure recovery of the first cell from the user equipment through the first cell.
  • the second information may include identification information of the candidate beam, and the second control unit 413 may be configured to control to receive the second information through PRACH.
  • the identification information of the candidate beam may include the local identification of the candidate beam in the second cell, and the processing circuit 410 may be configured to determine the candidate beam based on the second cell and the local identification.
  • FIG. 5 shows a configuration example of an electronic device for wireless communication according to another embodiment.
  • the electronic device 500 includes a processing circuit 510 including a first control unit 511, a second control unit 513, and a third control unit 515.
  • the first control unit 511 and the second control unit 513 are similar to the first control unit 411 and the second control unit 413 in the foregoing embodiment.
  • the third control unit 515 is configured to determine the grouping information and control to transmit the determined grouping information to the user equipment.
  • the grouping information indicates a plurality of cell subsets of a cell set used for carrier aggregation communication, and each cell subset contains at least one first cell.
  • the third control unit 515 may also be configured to determine the correspondence between the cell and the cell identity and control to send information about the correspondence to the user equipment.
  • the correspondence relationship may include: a correspondence relationship between the physical cell identity and the defined global identity or a correspondence relationship between the physical cell identity and the defined group identity and local identity.
  • the global identification is used to distinguish each cell in the cell set
  • the group identification is used to distinguish each cell subset
  • the local identification is used to distinguish each cell in the same cell subset.
  • the first information received from the user equipment may include a global identity of the second cell or a local identity of the second cell in its cell subset
  • the third control unit 515 may be configured to determine according to the global identity The second cell, or the second cell is determined according to the first cell and the local identification.
  • the third control unit 515 may also be configured to control to send packet information to the user equipment through radio resource control signaling.
  • Fig. 6 shows a wireless communication method according to an embodiment.
  • carrier aggregation communication is performed with the user equipment through at least the first cell and the second cell.
  • embodiments of the present disclosure also include a computer-readable medium that includes executable instructions, which when executed by the information processing device, cause the information processing device to perform the above method.
  • each step of the above method and each constituent module and/or unit of the above device may be implemented as software, firmware, hardware, or a combination thereof.
  • a program that constitutes software for implementing the above method may be installed from a storage medium or a network to a computer with a dedicated hardware structure (such as the general-purpose computer 1400 shown in FIG. 7).
  • a dedicated hardware structure such as the general-purpose computer 1400 shown in FIG. 7.
  • a central processing unit (ie, CPU) 1401 performs various processes according to a program stored in a read-only memory (ROM) 1402 or a program loaded from a storage section 1408 to a random access memory (RAM) 1403.
  • ROM read-only memory
  • RAM random access memory
  • data required when the CPU 1401 performs various processes and the like are also stored as necessary.
  • the CPU 1401, ROM 1402, and RAM 1403 are linked to each other via a bus 1404.
  • the input/output interface 1405 is also linked to the bus 1404.
  • input section 1406 including keyboard, mouse, etc.
  • output section 1407 including display, such as cathode ray tube (CRT), liquid crystal display (LCD), etc., and speakers, etc.
  • a storage section 1408 including a hard disk, etc.
  • a communication section 1409 including a network interface card such as a LAN card, a modem, etc.
  • the communication section 1409 performs communication processing via a network such as the Internet.
  • the driver 1410 may also be linked to the input/output interface 1405 as needed.
  • a removable medium 1411 such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, or the like is installed on the drive 1410 as necessary, so that the computer program read out therefrom is installed in the storage portion 1408 as necessary.
  • a program constituting the software is installed from a network such as the Internet or a storage medium such as a removable medium 1411.
  • a storage medium is not limited to the removable medium 1411 shown in FIG. 7 in which the program is stored and distributed separately from the device to provide the program to the user.
  • removable media 1411 include magnetic disks (including floppy disks (registered trademark)), optical disks (including compact disk read-only memory (CD-ROM) and digital versatile disks (DVD)), and magneto-optical disks (including mini disks (MD) (registered trademark) )) and semiconductor memory.
  • the storage medium may be a ROM 1402, a hard disk included in the storage section 1408, or the like, in which programs are stored, and distributed to users together with devices containing them.
  • Embodiments of the present invention also relate to a program product storing machine-readable instruction codes.
  • the instruction code When the instruction code is read and executed by the machine, the method according to the embodiment of the present invention may be executed.
  • a storage medium for carrying the above-mentioned program product storing machine-readable instruction codes is also included in the disclosure of the present invention.
  • the storage medium includes but is not limited to a floppy disk, an optical disk, a magneto-optical disk, a memory card, a memory stick, and so on.
  • the electronic device may be implemented as any type of gNB, evolved Node B (eNB), such as a macro eNB and a small eNB.
  • eNB evolved Node B
  • the small eNB may be an eNB covering a cell smaller than a macro cell, such as a pico eNB, a micro eNB, and a home (femto) eNB.
  • the electronic device may be implemented as any other type of base station, such as a NodeB and a base transceiver station (BTS).
  • BTS base transceiver station
  • the electronic device may include: a main body (also referred to as a base station device) configured to control wireless communication; and one or more remote wireless head ends (RRHs) provided at different places from the main body.
  • a main body also referred to as a base station device
  • RRHs remote wireless head ends
  • various types of terminals that will be described below can all operate as a base station by temporarily or semi-permanently performing base station functions.
  • the electronic device When the electronic device is used on the user equipment side, it can be implemented as a mobile terminal (such as a smart phone, tablet personal computer (PC), notebook PC, portable game terminal, portable/dongle-type mobile router, and digital camera) or Vehicle-mounted terminals (such as car navigation equipment).
  • the electronic device may be a wireless communication module (such as an integrated circuit module including a single or multiple wafers) mounted on each of the above terminals.
  • FIG. 8 is a block diagram showing an example of a schematic configuration of a smartphone 2500 to which the technology of the present disclosure can be applied.
  • the smartphone 2500 includes a processor 2501, a memory 2502, a storage device 2503, an external connection interface 2504, a camera device 2506, a sensor 2507, a microphone 2508, an input device 2509, a display device 2510, a speaker 2511, a wireless communication interface 2512, one or more Antenna switch 2515, one or more antennas 2516, bus 2517, battery 2518, and auxiliary controller 2519.
  • the processor 2501 may be, for example, a CPU or a system on chip (SoC), and controls functions of the application layer and other layers of the smartphone 2500.
  • the memory 2502 includes RAM and ROM, and stores data and programs executed by the processor 2501.
  • the storage device 2503 may include a storage medium such as a semiconductor memory and a hard disk.
  • the external connection interface 2504 is an interface for connecting an external device such as a memory card and a universal serial bus (USB) device to the smartphone 2500.
  • USB universal serial bus
  • the imaging device 2506 includes an image sensor such as a charge coupled device (CCD) and a complementary metal oxide semiconductor (CMOS), and generates a captured image.
  • the sensor 2507 may include a set of sensors, such as measurement sensors, gyro sensors, geomagnetic sensors, and acceleration sensors.
  • the microphone 2508 converts the sound input to the smartphone 2500 into an audio signal.
  • the input device 2509 includes, for example, a touch sensor configured to detect a touch on the screen of the display device 2510, a keypad, a keyboard, a button, or a switch, and receives operation or information input from the user.
  • the display device 2510 includes a screen such as a liquid crystal display (LCD) and an organic light emitting diode (OLED) display, and displays an output image of the smartphone 2500.
  • the speaker 2511 converts the audio signal output from the smartphone 2500 into sound.
  • the wireless communication interface 2512 supports any cellular communication scheme (such as LTE and LTE-advanced), and performs wireless communication.
  • the wireless communication interface 2512 may generally include, for example, a baseband (BB) processor 2513 and a radio frequency (RF) circuit 2514.
  • the BB processor 2513 can perform, for example, encoding/decoding, modulation/demodulation, and multiplexing/demultiplexing, and perform various types of signal processing for wireless communication.
  • the RF circuit 2514 may include, for example, a mixer, a filter, and an amplifier, and transmits and receives wireless signals via the antenna 2516.
  • the wireless communication interface 2512 may be a chip module on which the BB processor 2513 and the RF circuit 2514 are integrated. As shown in FIG.
  • the wireless communication interface 2512 may include multiple BB processors 2513 and multiple RF circuits 2514.
  • FIG. 8 shows an example in which the wireless communication interface 2512 includes a plurality of BB processors 2513 and a plurality of RF circuits 2514, the wireless communication interface 2512 may also include a single BB processor 2513 or a single RF circuit 2514.
  • the wireless communication interface 2512 may support another type of wireless communication scheme, such as a short-range wireless communication scheme, a near field communication scheme, and a wireless local area network (LAN) scheme.
  • the wireless communication interface 2512 may include a BB processor 2513 and an RF circuit 2514 for each wireless communication scheme.
  • Each of the antenna switches 2515 switches the connection destination of the antenna 2516 between a plurality of circuits included in the wireless communication interface 2512 (for example, circuits for different wireless communication schemes).
  • Each of the antennas 2516 includes a single or multiple antenna elements (such as multiple antenna elements included in a MIMO antenna), and is used for the wireless communication interface 2512 to transmit and receive wireless signals.
  • the smartphone 2500 may include multiple antennas 2516.
  • FIG. 8 shows an example in which the smartphone 2500 includes multiple antennas 2516, the smartphone 2500 may also include a single antenna 2516.
  • the smartphone 2500 may include an antenna 2516 for each wireless communication scheme.
  • the antenna switch 2515 may be omitted from the configuration of the smartphone 2500.
  • the bus 2517 connects the processor 2501, memory 2502, storage device 2503, external connection interface 2504, camera device 2506, sensor 2507, microphone 2508, input device 2509, display device 2510, speaker 2511, wireless communication interface 2512, and auxiliary controller 2519 to each other connection.
  • the battery 2518 supplies power to each block of the smartphone 2500 shown in FIG. 8 via a feeder, which is partially shown as a dotted line in the figure.
  • the auxiliary controller 2519 operates the minimum necessary functions of the smartphone 2500 in the sleep mode, for example.
  • the transceiver device of the wireless communication device on the user equipment side may be implemented by the wireless communication interface 2512.
  • At least a part of the processing circuit and/or the function of each unit of the electronic device on the user equipment side or the wireless communication device according to the embodiment of the present invention may also be implemented by the processor 2501 or the auxiliary controller 2519.
  • the power consumption of the battery 2518 may be reduced by the auxiliary controller 2519 performing part of the functions of the processor 2501.
  • the processor 2501 or the auxiliary controller 2519 may execute the processing circuit and/or each unit of the electronic device or wireless communication device on the user equipment side according to an embodiment of the present invention by executing the program stored in the memory 2502 or the storage device 2503 At least part of the function.
  • the gNB 2300 includes one or more antennas 2310 and base station equipment 2320.
  • the base station device 2320 and each antenna 2310 may be connected to each other via a radio frequency (RF) cable.
  • RF radio frequency
  • Each of the antennas 2310 includes a single or multiple antenna elements (such as multiple antenna elements included in a multiple input multiple output (MIMO) antenna), and is used for the base station device 2320 to transmit and receive wireless signals.
  • gNB 2300 may include multiple antennas 2310.
  • multiple antennas 2310 may be compatible with multiple frequency bands used by gNB 2300.
  • FIG. 9 shows an example in which gNB 2300 includes multiple antennas 2310, gNB 2300 may also include a single antenna 2310.
  • the base station device 2320 includes a controller 2321, a memory 2322, a network interface 2323, and a wireless communication interface 2325.
  • the controller 2321 may be, for example, a CPU or a DSP, and operates various functions of higher layers of the base station device 2320. For example, the controller 2321 generates a data packet based on the data in the signal processed by the wireless communication interface 2325, and transfers the generated packet via the network interface 2323. The controller 2321 may bundle data from multiple baseband processors to generate bundle packets, and deliver the generated bundle packets. The controller 2321 may have a logical function of performing control such as radio resource control, radio bearer control, mobility management, admission control, and scheduling. This control can be performed in conjunction with nearby gNB or core network nodes.
  • the memory 2322 includes RAM and ROM, and stores programs executed by the controller 2321 and various types of control data (such as terminal lists, transmission power data, and scheduling data).
  • the network interface 2323 is a communication interface for connecting the base station device 2320 to the core network 2324.
  • the controller 2321 may communicate with the core network node or another gNB via the network interface 2323.
  • gNB 2300 and the core network node or other gNB may be connected to each other through logical interfaces such as S1 interface and X2 interface.
  • the network interface 2323 can also be a wired communication interface or a wireless communication interface for a wireless backhaul line. If the network interface 2323 is a wireless communication interface, the network interface 2323 can use a higher frequency band for wireless communication than the frequency band used by the wireless communication interface 2325.
  • the wireless communication interface 2325 supports any cellular communication scheme such as Long Term Evolution (LTE) and LTE-Advanced, and provides a wireless connection to terminals located in the cell of the gNB 2300 via the antenna 2310.
  • the wireless communication interface 2325 may generally include, for example, a BB processor 2326 and an RF circuit 2327.
  • the BB processor 2326 can perform, for example, encoding/decoding, modulation/demodulation, and multiplexing/demultiplexing, and perform layers (such as L1, media access control (MAC), radio link control (RLC), and packet data aggregation protocol (PDCP)) various types of signal processing.
  • the BB processor 2326 may have some or all of the above-mentioned logic functions.
  • the BB processor 2326 may be a memory storing a communication control program, or a module including a processor configured to execute the program and related circuits.
  • the update program can change the function of the BB processor 2326.
  • the module may be a card or blade inserted into the slot of the base station device 2320. Alternatively, the module may also be a chip mounted on a card or blade.
  • the RF circuit 2327 may include, for example, a mixer, a filter, and an amplifier, and transmits and receives wireless signals via the antenna 2310.
  • the wireless communication interface 2325 may include multiple BB processors 2326.
  • multiple BB processors 2326 may be compatible with multiple frequency bands used by gNB 2300.
  • the wireless communication interface 2325 may include a plurality of RF circuits 2327.
  • multiple RF circuits 2327 may be compatible with multiple antenna elements.
  • FIG. 9 shows an example in which the wireless communication interface 2325 includes a plurality of BB processors 2326 and a plurality of RF circuits 2327, the wireless communication interface 2325 may also include a single BB processor 2326 or a single RF circuit 2327.
  • the transceiver device of the wireless communication device on the base station side according to the embodiment of the present invention may be implemented by a wireless communication interface 2325.
  • At least a part of the functions of the processing circuit and/or each unit of the electronic device on the base station side or the wireless communication device according to the embodiment of the present invention may also be implemented by the controller 2321.
  • the controller 2321 may execute at least a part of the functions of the processing circuit and/or each unit of the electronic device on the base station side or the wireless communication device according to the embodiment of the present invention by executing the program stored in the memory 2322.
  • the method of the present invention is not limited to being executed in the chronological order described in the specification, but may also be executed in other chronological order, in parallel or independently. Therefore, the execution order of the methods described in this specification does not limit the technical scope of the present invention.
  • embodiments of the present invention include:
  • An electronic device for wireless communication which includes a processing circuit configured to:
  • the first information includes identification information of the second cell where a beam failure occurs and identification information of a candidate beam used for beam failure recovery.
  • the processing circuit is further configured to control to receive packet information, wherein the packet information indicates a plurality of cell sets used for the carrier aggregation communication A subset of cells, each of which includes at least one of the first cells.
  • Cells with large differences in location are preferentially grouped into the same cell subset.
  • the global identifier is used to distinguish each cell in the cell set
  • the group identifier is used to distinguish each cell subset
  • the local identifier is used to distinguish each cell in the same cell subset.
  • the local identification of the second cell in its cell subset is the local identification of the second cell in its cell subset.
  • the beam failure recovery request of the secondary cell with uplink is preferentially performed.
  • a wireless communication method including:
  • An electronic device for wireless communication including a processing circuit configured to:
  • the first information includes identification information of the second cell where a beam failure occurs and identification information of a candidate beam used for beam failure recovery.
  • the global identifier is used to distinguish each cell in the cell set
  • the group identifier is used to distinguish each cell subset
  • the local identifier is used to distinguish each cell in the same cell subset.
  • the processing circuit is configured to determine the second cell according to the global identity, or determine the second cell according to the first cell and the local identity.
  • a wireless communication method including:

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Abstract

本公开涉及电子装置、无线通信方法和计算机可读介质。根据一个实施例的用于无线通信的电子装置包括处理电路。处理电路被配置为进行控制以通过至少第一小区和第二小区与基站进行载波聚合通信。处理电路还被配置为进行控制以通过第一小区向基站发送用于第二小区的波束故障恢复的第一信息。

Description

电子装置、无线通信方法和计算机可读介质
本申请要求于2019年1月10日提交中国专利局、申请号为201910024037.0、发明名称为“电子装置、无线通信方法和计算机可读介质”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本公开一般涉及无线通信领域，更具体地，涉及用于无线通信的电子装置、无线通信方法以及计算机可读介质。
背景技术
用户设备(UE)的波束故障恢复(BFR)过程包括波束故障检测(BFD)、新候选波束识别(NBI)、波束故障恢复请求(BFRQ)发送以及监视基站(gNB)对波束故障恢复请求的响应。
具体地，如图10所示，在S1002，如果对于全部参考信号(RS)的假设块误码率(BLER)高于阈值，则可以确定波束故障情况。在S1004，在N次波束故障情况之后，可以认为出现波束故障。在S1006，UE识别候选波束，并且可以基于新识别的波束来识别一个物理随机接入信道(PRACH)资源用于承载BFR请求。在S1008，UE监视BFR响应。
在载波聚合(CA)场景中，UE可以被配置多个小区，包括主小区(PCell)和辅小区(SCell)，其中SCell可以包括具有上行链路(UL)的SCell和只具有下行链路(DL)的SCell。UE通过PCell与基站(gNB)进行无线资源控制(RRC)通信。
发明内容
在下文中给出了关于本发明实施例的简要概述，以便提供关于本发明的某些方面的基本理解。应当理解，以下概述并不是关于本发明的穷举性概述。它并不是意图确定本发明的关键或重要部分，也不是意图限定本发明的范围。其目的仅仅是以简化的形式给出某些概念，以此作为稍后论述的更详细描述的前序。
根据一个实施例，提供一种用于无线通信的电子装置，其包括处理电路。 处理电路被配置为进行控制以通过至少第一小区和第二小区与基站进行载波聚合通信。处理电路还被配置为进行控制以通过第一小区向基站发送用于第二小区的波束故障恢复的第一信息。
根据另一个实施例，一种无线通信方法包括通过至少第一小区和第二小区与基站进行载波聚合通信的步骤。该方法还包括通过第一小区向基站发送用于第二小区的波束故障恢复的第一信息的步骤。
根据另一个实施例，提供一种用于无线通信的电子装置，其包括处理电路。处理电路被配置为进行控制以通过至少第一小区和第二小区与用户设备进行载波聚合通信。处理电路还被配置为以及进行控制以接收用户设备通过第一小区发送的用于第二小区的波束故障恢复的第一信息。
根据另一个实施例，一种无线通信方法包括通过至少第一小区和第二小区与用户设备进行载波聚合通信的步骤。该方法还包括接收用户设备通过第一小区发送的用于第二小区的波束故障恢复的第一信息的步骤。
根据另一个实施例，提供一种计算机可读介质，其包括可执行指令，当可执行指令被信息处理设备执行时，使得信息处理设备执行上述方法。
通过本发明的实施例，能够针对CA场景中的不同小区有效地进行BFR。
附图说明
本发明可以通过参考下文中结合附图所给出的描述而得到更好的理解，其中在所有附图中使用了相同或相似的附图标记来表示相同或者相似的部件。所述附图连同下面的详细说明一起包含在本说明书中并且形成本说明书的一部分，而且用来进一步举例说明本发明的优选实施例和解释本发明的原理和优点。在附图中：
图1是示出根据本发明一个实施例的用于无线通信的电子装置的配置示例的框图；
图2是示出根据本发明另一个实施例的用于无线通信的电子装置的配置示例的框图；
图3是示出根据本发明的一个实施例的无线通信方法的过程示例的流程图；
图4是示出根据本发明一个实施例的用于无线通信的电子装置的配置示 例的框图；
图5是示出根据本发明另一个实施例的用于无线通信的电子装置的配置示例的框图；
图6是示出根据本发明的一个实施例的无线通信方法的过程示例的流程图；
图7是示出实现本公开的方法和设备的计算机的示例性结构的框图；
图8是示出可以应用本公开内容的技术的智能电话的示意性配置的示例的框图；
图9是示出可以应用本公开内容的技术的gNB的示意性配置的示例的框图；
图10是用于说明BFR的一般过程的流程图；
图11是示出BFR的一个示例场景的示意图；
图12是示出BFR的一个示例场景的示意图；
图13是示出BFR的一个示例场景的示意图；
图14是用于说明小区分组的示例的示意图；
图15是示出多个小区的示例的示意图；
图16是用于说明分组的小区的BFR的示例的示意图；
图17是用于说明小区指示方式的示例的示意图；
图18是用于说明小区指示方式的示例的示意图；
图19是用于说明候选波束的指示方式的示例的示意图；
图20是用于说明多小区BFR的示例的示意图；
图21是用于说明多小区BFR的示例的示意图；以及
图22是示出BFR的过程示例的信令流程图。
具体实施方式
下面将参照附图来说明本发明的实施例。在本发明的一个附图或一种实施方式中描述的元素和特征可以与一个或更多个其它附图或实施方式中示出的元素和特征相结合。应当注意，为了清楚的目的，附图和说明中省略了与本发明无关的、本领域普通技术人员已知的部件和处理的表示和描述。
下面参照图1说明根据本公开的一个实施例的用于无线通信的电子装置 的配置示例。如图1所示，根据本实施例的用于无线通信的电子装置100包括处理电路110。处理电路110例如可以实现为特定芯片、芯片组或者中央处理单元(CPU)等。
根据本实施例的电子装置例如可以实现在用户设备侧。
处理电路110包括第一控制单元111和第二控制单元113。需要指出，虽然附图中以功能块的形式示出了第一控制单元111和第二控制单元113，然而应理解，各单元的功能也可以由处理电路作为一个整体来实现，而并不一定是通过处理电路中分立的实际部件来实现。另外，虽然图中以一个框示出处理电路，然而电子装置可以包括多个处理电路，并且可以各单元的功能分布到多个处理电路中，从而由多个处理电路协同操作来执行这些功能。
第一控制单元111被配置为进行控制以通过至少第一小区和第二小区与基站进行载波聚合通信。
第二控制单元113被配置为进行控制以通过第一小区向基站发送用于第二小区的波束故障恢复的第一信息。
根据一个实施例，第一小区可以包括主小区(PCell)或具有上行链路的辅小区(SCell)，第二小区可以包括不具有上行链路的SCell。
如前所述，在载波聚合(CA)场景中，UE可以被配置多个小区。例如，一个UE可以被配置多至32个小区，其中包括1个PCell和31个SCell。然而，面参照图10说明的传统BFR过程适用于PCell，而并不适用于全部SCell，例如仅具有下行链路的SCell。通过本实施例，使得能够针对CA场景中的多种小区有效地进行BFR过程。
需要指出，本发明实施例并不限于通过PCell或具有上行链路的SCell为不具有上行链路的SCell发送BFR信息。例如，出于通信质量、资源和效率等方面的考虑，也可以通过PCell为具有上行链路的SCell发送BFR信息，或者通过具有上行链路的SCell为PCell发送BFR信息，等等。换句话说，第二小区也可以包括PCell或具有上行链路的SCell。
根据一个实施例，第一信息可以包括发生波束故障的第二小区的标识信息以及用于波束故障恢复的候选波束的标识信息。
作为示例，可以通过物理上行控制信道(PUCCH)发送第二小区的标识信息和候选波束的标识信息。
在这种情况下，根据一个实施例，可以在PUCCH中包含指示位，该指示位指示PUCCH中包含BFR信息。
此外，对于具有上行链路的小区例如PCell或具有上行链路的SCell，当该小区发生波束故障时，可以通过该小区自身向基站发送BFR信息。
相应地，根据一个实施例，第二控制单元113可以被配置为进行控制以通过第一小区向基站发送用于第一小区的波束故障恢复的第二信息。
在这种情况下，通过第一小区发送其自己的BFR信息，因此该BFR信息可以只包括候选波束的标识信息。
作为示例，可以通过物理随机接入信道(PRACH)发送上述第二信息。
接下来，参照图11至图13说明不同示例场景下波束故障恢复请求(BFRQ)的发送方式的示例。
图11示出了具有上行链路的SCell上发生了波束故障的示例情形。在这种情况下，可以通过该SCell向基站(例如gNB)发送BFRQ。在这种情况下，可以通过PRACH或PUCCH发送BFRQ。
图12和图13示出了仅具有下行链路的SCell上发生了波束故障的示例情形。在这种情况下，可以通过PCell(如图12所示)或具有上行链路的SCell(如图13所示)向基站发送BFRQ。在这种情况下，由于还需要向基站发送发生波束故障的小区的标识信息，因此优选地通过PUCCH发送BFRQ。
特别地，当通过某小区的上行链路发送该小区自己的BFRQ时，可以通过PRACH发送BFRQ，该BFRQ可以包含候选波束指示信息而不需要包含发生波束故障的小区的标识。另一方面，当通过一个小区发送另一个小区的BFRQ时，由于BFRQ需要包含发生波束故障的小区的标识，PRACH可能不足以承载这些信息，因此可以通过PUCCH发送BFRQ。
此外，由于一个UE可以被配置多种类型的小区，例如PCell(能够与基站进行RRC通信)、具有上行链路的SCell和仅具有下行链路的SCell，根据一个实施例，可以将UE的全部小区进行分组，并基于分组来进行BFR过程。
接下来，参照图2说明根据另一个实施例的用于无线通信的电子装置的配置示例。
如图2所示，根据本实施例的电子装置200包括处理电路210。处理电路210包括第一控制单元211、第二控制单元213和第三控制单元215。第一控 制单元211和第二控制单元213的功能配置与前面参照图1说明的第一控制单元111和第二控制单元113类似。
第三控制单元215被配置为进行控制以接收分组信息，分组信息指示用于载波聚合通信的小区集合的多个小区子集，在每个小区子集中包含至少一个第一小区。
分组信息可以是由基站确定并例如通过RRC控制信令发送给UE的。相应地，根据一个实施例，第三控制单元215可以被配置为进行控制以通过RRC信令从基站接收分组信息。
作为示例，图14示出了对UE的全部小区进行分组的示例。在该示例中，UE的全部小区被根据PCell和具有上行链路的SCell的总数分成了三组，每组中包含一个PCell或具有上行链路的SCell，并且还包括若干仅具有下行链路的SCell。更具体地，在图14的示例中，组1包含PCell和三个只具有下行链路的SCell，组2和组3各自包含一个具有上行链路的SCell和三个只具有下行链路的SCell。
小区分组可以是根据不同的规则确定的。例如，可以将同位(co-located)小区分组到同一小区子集中。
作为示例，如图15所示，UE连接至4个小区，其中小区1和小区2是同位小区，小区3和小区4是同位小区。假设小区1和小区3是具有上行链路的SCell，小区2和小区4是仅具有下行链路的SCell，根据上述规则，可以将小区1和小区2分为一组，将小区3和小区4分为一组。
通过将同位小区分为一组，例如有利于节省基站间的通信开销。
然而，小区分子规则不限于此。例如，也可以优先将位置差别较大的小区分组到同一小区子集中。同样以图15所示的情形为例，根据本示例规则，可以将小区1和小区4分为一组，将小区3和小区2分为一组。通过将不同位置的小区分到同一组，例如有利于降低同一组中的多个小区同时出现波束故障的可能性。
在获得了分组信息的情况下，当UE检测到波束故障时，如果发生波束故障的小区是PCell或具有上行链路的SCell，则其可以通过该小区发送BFRQ。另一方面，如果发生波束故障的小区是仅具有下行链路的SCell，UE可以确定发生波束故障的小区所属的组，并且根据小区分组进行BFR过程，例如可以 通过与该小区同组的PCell或具有上行链路的SCell发送BFRQ。
如图16所示，如果组1中的仅具有下行链路的SCell发生波束故障，则可以通过组1中的PCell发送BFRQ；如果组2中具有上行链路的SCell发生波束故障，则可以通过该SCell发送BFRQ。
图22示出了BFR的一个示例过程。首先，UE进行波束故障检测；在检测到波束故障的情况下，向PCell或具有上行链路的SCell通知波束故障信息；接下来，收到通知的PCell或具有上行链路的SCell向基站(例如发送接收点TRP)发送BFRQ，其中包含故障小区指示和候选波束指示。
在基于小区分组进行BFR的情况下，由于发送BFRQ的小区有可能不是发生波束故障的小区，因此需要在BFRQ中指示发生波束故障的小区。
根据一个实施例，第三控制单元215还可以被配置为进行控制以接收小区与小区标识之间的对应关系的信息，该对应关系可以包括物理小区标识与经定义的全局标识之间的对应关系，其中全局标识用于区分小区集合中的各小区。或者，对应关系可以包括物理小区标识与经定义的组标识及局部标识之间的对应关系，其中组标识用于区分各小区子集，局部标识用于区分同一小区子集内的各小区。
相应地，向基站发送的第一信息可以包括第二小区的全局标识。或者，向基站发送的第一信息可以包括第二小区的在其小区子集中的局部标识，基站可以根据用于发送第一信息的第一小区以及该局部标识来确定第二小区。
接下来，结合具体示例进一步说明发生波束故障的小区的指示方式。
首先，说明全局标识的指示方式的示例。
如前所述，一个UE可以被配置多至32个小区，其中包括一个PCell和31个SCell，因此可以为每个小区配置5比特的全局ID，如下面的表1所示。当UE发送BFRQ时，其可以使用全局ID来表示不同的小区。
表1
比特 波束故障小区ID
00000 PCell 0
00001 SCell 1
00010 SCell 2
...... ......
11111 SCell 31
当小区加入链接时可以通过RRC配置physCellId来获得其物理小区标识(PCI)，相应地，例如可以引入RRC参数globalCellId来表示配置给UE的小区，并且可以建立PCI与全局ID之间的对应关系。
更具体地，首先可以将PCI从小到大排序，然后给每个小区分配全局ID。例如，UE使用三个小区建立连接，其physCellId参数分别为23、47和59，则可以通过RRC向这三个小区分配globalCellId参数，如表2所示。
表2
physCellId globalCellId
23 0
47 1
59 2
接下来，说明局部标识的指示方式的示例。
在一个UE的全部小区被分成k组的情况下，可以为同一组中的每个小区分配局部ID，如表3所示。
表3
组ID 小区ID
0 0,1,2....
1 0,1,2....
... ...
k 0,1,2....
在每个组中，具有上行链路的小区的局部ID可以为0，其他小区的局部ID可以为1、2、……。
小区的组ID和局部ID例如可以由基站通过RRC参数配置。在RRC信令中包含cellGroupId参数，其用于指示小区是适于主小区组还是辅小区组。可以定义新的RRC参数GroupID以指示连接到UE的全部小区的组ID，并且可以通过LocalID参数来配置局部ID。
在上述基于组的BFRQ发送中，通过发送组ID和局部ID，能够准确地指示每个小区。
如图17所示，小区分组的数量k＝3，仅具有下行链路的SCell的数量为6，每个组的小区数量为3。如果组ID为1(二进制表示为01)、局部ID为2(二级制表示为10)的小区具有波束故障，则通过组ID为1、局部ID为0的小区发送BFRQ，并且故障小区的ID可以二级制表示为组ID+局部ID＝0110。
接下来，说明局部标识的指示方式的另一示例。
如果通过小区组中具有上行链路的小区发送同一组中的故障小区的BFRQ，则基站可以根据发送BFRQ的小区知晓故障小区的组ID。例如，基站可以存储具有上行链路的全部小区的组ID，如图18所示。在这种情况下，在发送BFRQ时可以省略向基站发送组ID，而只需要包含故障小区的局部ID。
如图18所示，故障小区和发送BFRQ的小区在同一组中，UE仅需要在BFRQ中发送故障小区的局部ID而不需要发送组ID。
上面描述了发生波束故障的小区的标识信息的指示方式。接下来，说明用于波束故障恢复的候选波束的标识信息的指示方式。
根据一个实施例，候选波束的标识信息包括候选波束在第二小区中的局部标识。基站可以基于第二小区以及局部标识来确定候选波束。
候选波束ID可以与PRACH序列一一对应，并且可以通过PRACH指示候选波束。然而，在UE配置的小区数量较大时，候选波束的数量相应地也较大，因此所需要的PRACH资源会非常大。例如，如果PRACH资源等于候选波束数量，则每个小区需要多至64个PRACH资源，而总共需要配置320个PRACH资源。因此，可以优选采用PUCCH发送候选波束信息。
PUCCH承载信道状态指示(CSI)、混合自动重传请求(HARQ)、调度请求(SR)等控制信息。如果通过PUCCH发送BFRQ，则可以在PUCCH中包含波束故障指示以使基站知晓接下来接收的信息是BFRQ而不是上述其他控制信息。
作为示例，可以将N个符号的全零序列作为波束故障指示。由于PUCCH格式的符号长度为1-2或4-14，为了与这些格式进行区分，同时保证波束故障指示不会过长，例如可以将N设置为3。
在发送波束故障指示后，UE可以将故障小区ID和候选波束ID发给基站。故障小区ID的指示可以参照前述示例实施例。
下面说明通过PUCCH发送候选波束ID的示例方式。
根据一个示例，可以通过以下方式建立PUCCH资源与候选波束ID之间的对应关系。假设UE被配置了n个小区，则需要64×n个PUCCH资源来用于候选波束ID映射。假设n＝4，则需要256个PUCCH资源，并且可以用8位二进制数指示候选波束ID，如表4所示。
表4
PUCCH位 候选波束ID
00000000 0
00000001 1
00000010 2
... ...
11111111 255
根据另一个示例，可以以基于组的方式建立PUCCH资源与候选波束ID之间的对应关系。这里所说的组是指小区，即，以一个小区的波束为一组。在这种情况下，PUCCH序列不再对应于特定候选波束，而是可以被看作对应于特定波束集合。
例如，假设UE被配置k个小区组，每个小区可以被配置多至64个波束， 可将具有相同局部ID的k个候选波束视为一个候选波束集合，并且可以将特定PUCCH序列对应于该候选波束集合。换句话说，每个PUCCH序列对应于这样的一组候选波束：其中每个波束在各自小区中的局部ID相同。
作为示例，表5示出了UE所连接的两个小区各自配置有三个候选波束的情形，每个候选波束具有在其小区中的局部ID。
表5
Figure PCTCN2020070442-appb-000001
在这种情况下，具有相同局部ID的候选波束可以对应于同一PUCCH序列，如表6所示。
表6
Figure PCTCN2020070442-appb-000002
在表6的示例中，每个PUCCH序列对应于一组具有相同局部ID的候选波束，候选波束在该组中的排序例如可以基于相应的小区ID。
不同的PUCCH序列对应于不同的候选波束集合，进一步基于小区ID指示信息(已在前面的示例实施例中说明了小区ID的指示方式)则可以确定候选波束。例如，在图19的示例中，在PUCCH序列为101并且小区ID为3的情况下，可以确定候选波束为ID为3的小区的局部ID为波束。
在上述示例中，在通过PUCCH发送BFRQ时，例如可以通过SR发送波 束故障指示，通过所定义的PUCCH格式发送故障波束ID，并且通过所定义的PUCCH格式发送候选波束ID。
此外，在基站知晓了故障小区ID的情况下，UE只需要报告PUCCH序列以指示候选波束的局部ID(其可以被看作候选波束集合ID)。相应地，能够降低PUCCH中所需的比特数量。
如前所述，一个UE可以被配置多个小区，因此存在不同小区同时发生波束故障的可能性。接下来，说明这种情况下的BFR的示例方式。
根据一个实施例，在主小区和辅小区均发生波束故障的情况下，可以优先进行主小区的波束故障恢复请求。另外，在具有上行链路的辅小区和不具有上行链路的辅小区均发生波束故障的情况下，可以优先进行具有上行链路的辅小区的波束故障恢复请求。由于通过主小区进行RRC连接，因此在BFR中，可以为主小区赋予更高的优先级。在辅小区中，具有上行链路的辅小区可以用于承载上行控制信令，其对于UE较为重要，因此可以为具有上行链路的辅小区赋予更高的优先级。
此外，在根据前述实施例对小区进行了分组的情况下，在两个或更多个小区子集中均发生波束故障的情况下，可以通过两个或更多个小区子集中各自的第一小区(例如主小区或具有上行链路的辅小区)同时进行波束故障恢复请求。
更具体地，在基于分组的波束故障恢复中，可以考虑两种示例情形，第一种情形是每个组中发生最多一个波束故障，第二种情形是有的组中发生多于一个波束故障。接下来，分别针对这两种情形来说明BFR的示例方式。
在每个组中发生最多一个波束故障的情况下，由于可以在各组中彼此独立地执行波束故障检测和新波束指示，因此可以通过各组中的主小区或具有上行链路的辅小区同时发送BFRQ。
如图20所示，在组1的小区2、组2的小区1和组3的小区3同时发生波束故障时，可以通过组1的小区0、组2的小区0和组3的小区0同时向基站发送BFRQ。
当同时发送多个BFRQ时，可以根据前述实施例，例如通过PUCCH来提供故障小区指示和候选波束指示。即使通过两个小区发送了相同的PUCCH序列，由于指示了故障小区ID，基站能够区分每个小区报告的候选波束。需要指出，在这种情况下如果针对两个小区选择了相同的PUCCH序列，UE不应 忽略其中任一个，而是应该通过这两个小区各自发送该PUCCH序列，以便基站能够获得相应的信息。
另一方面，在有的组中发生多于一个波束故障的情况下，可以通过各组中的主小区或具有上行链路的辅小区同时发送BFRQ，并且每组每次只发送一个BFRQ。在发生多于一个波束故障的组中，可以优先发送具有上行链路的辅小区的BFRQ(例如通过主小区)。
如图21所示，在组1的小区0和小区2、组2的小区1和组3的小区3同时发生波束故障时，可以同时向基站发送组1的小区0、组2的小区1和组3的小区3的BFRQ，然后可以发送组1的小区2的BFRQ。
在前面对根据本发明实施例的用于无线通信的电子装置的说明过程中，显然也公开了一些过程和方法。接下来，在不重复全面描述过的细节的情况下，给出对根据本发明实施例的无线通信方法的说明。
如图3所示，根据一个实施例的无线通信方法包括通过至少第一小区和第二小区与基站进行载波聚合通信的步骤S310以及通过第一小区向基站发送用于第二小区的波束故障恢复的第一信息的步骤S320。
前面描述了对应于用户设备侧的装置和方法的实施例。此外，本发明还包括实现在基站侧的实施例。接下来，在不重复与前面描述的实施例相应的细节的情况下，给出对应于基站侧的装置和方法的实施例的说明。
如图4所示，根据一个实施例的用于无线通信的电子装置400包括处理电路410，处理电路410包括第一控制单元411和第二控制单元413。
第一控制单元411被配置为进行控制以通过至少第一小区和第二小区与用户设备进行载波聚合通信。
第二控制单元413被配置为进行控制以接收用户设备通过第一小区发送的用于第二小区的波束故障恢复的第一信息。
第一小区可以包括主小区或具有上行链路的辅小区，第二小区可以包括不具有上行链路的辅小区。
第一信息可以包括发生波束故障的第二小区的标识信息以及用于波束故障恢复的候选波束的标识信息。
第二控制单元413可以被配置为进行控制以通过PUCCH接收第二小区的标识信息和候选波束的标识信息。
第二控制单元413还可以被配置为进行控制以通过第一小区从用户设备接收用于第一小区的波束故障恢复的第二信息。第二信息可以包括候选波束的标识信息，并且第二控制单元413可以被配置为进行控制以通过PRACH接收该第二信息。
根据一个实施例，候选波束的标识信息可以包括候选波束在第二小区中的局部标识，并且处理电路410可以被配置为基于第二小区以及局部标识来确定候选波束。
图5示出了根据另一个实施例的用于无线通信的电子装置的配置示例。电子装置500包括处理电路510，处理电路510包括第一控制单元511、第二控制单元513和第三控制单元515。第一控制单元511和第二控制单元513与前述实施例中的第一控制单元411和第二控制单元413类似。
第三控制单元515被配置为确定分组信息并且进行控制以向用户设备发送所确定的分组信息。分组信息指示用于载波聚合通信的小区集合的多个小区子集，在每个小区子集中包含至少一个第一小区。
第三控制单元515还可以被配置为确定小区与小区标识之间的对应关系并进行控制以向用户设备发送关于对应关系的信息。该对应关系可以包括：物理小区标识与经定义的全局标识之间的对应关系或者物理小区标识与经定义的组标识及局部标识之间的对应关系。全局标识用于区分小区集合中的各小区，组标识用于区分各小区子集，局部标识用于区分同一小区子集内的各小区。
根据一个实施例，从用户设备接收的第一信息可以包括第二小区的全局标识或者第二小区的在其小区子集中的局部标识，并且第三控制单元515可以被配置为根据全局标识来确定第二小区，或者根据第一小区以及局部标识来确定第二小区。
第三控制单元515还可以被配置为进行控制以通过无线资源控制信令向用户设备发送分组信息。
图6示出了根据一个实施例的无线通信方法。
在S610，通过至少第一小区和第二小区与用户设备进行载波聚合通信。
在S620，接收用户设备通过第一小区发送的用于第二小区的波束故障恢复的第一信息。
此外，本公开实施例还包括计算机可读介质，其包括可执行指令，当可执 行指令被信息处理设备执行时，使得信息处理设备执行上述方法。
作为示例，上述方法的各个步骤以及上述装置的各个组成模块和/或单元可以实施为软件、固件、硬件或其组合。在通过软件或固件实现的情况下，可以从存储介质或网络向具有专用硬件结构的计算机(例如图7所示的通用计算机1400)安装构成用于实施上述方法的软件的程序，该计算机在安装有各种程序时，能够执行各种功能等。
在图7中，中央处理单元(即CPU)1401根据只读存储器(ROM)1402中存储的程序或从存储部分1408加载到随机存取存储器(RAM)1403的程序执行各种处理。在RAM 1403中，也根据需要存储当CPU 1401执行各种处理等等时所需的数据。CPU 1401、ROM 1402和RAM 1403经由总线1404彼此链路。输入/输出接口1405也链路到总线1404。
下述部件链路到输入/输出接口1405：输入部分1406(包括键盘、鼠标等等)、输出部分1407(包括显示器，比如阴极射线管(CRT)、液晶显示器(LCD)等，和扬声器等)、存储部分1408(包括硬盘等)、通信部分1409(包括网络接口卡比如LAN卡、调制解调器等)。通信部分1409经由网络比如因特网执行通信处理。根据需要，驱动器1410也可链路到输入/输出接口1405。可拆卸介质1411比如磁盘、光盘、磁光盘、半导体存储器等等根据需要被安装在驱动器1410上，使得从中读出的计算机程序根据需要被安装到存储部分1408中。
在通过软件实现上述系列处理的情况下，从网络比如因特网或存储介质比如可拆卸介质1411安装构成软件的程序。
本领域的技术人员应当理解，这种存储介质不局限于图7所示的其中存储有程序、与设备相分离地分发以向用户提供程序的可拆卸介质1411。可拆卸介质1411的例子包含磁盘(包含软盘(注册商标))、光盘(包含光盘只读存储器(CD-ROM)和数字通用盘(DVD))、磁光盘(包含迷你盘(MD)(注册商标))和半导体存储器。或者，存储介质可以是ROM 1402、存储部分1408中包含的硬盘等等，其中存有程序，并且与包含它们的设备一起被分发给用户。
本发明的实施例还涉及一种存储有机器可读取的指令代码的程序产品。所 述指令代码由机器读取并执行时，可执行上述根据本发明实施例的方法。
相应地，用于承载上述存储有机器可读取的指令代码的程序产品的存储介质也包括在本发明的公开中。所述存储介质包括但不限于软盘、光盘、磁光盘、存储卡、存储棒等等。
本申请的实施例还涉及以下电子设备。在电子设备用于基站侧的情况下，电子设备可以被实现为任何类型的gNB、演进型节点B(eNB)，诸如宏eNB和小eNB。小eNB可以为覆盖比宏小区小的小区的eNB，诸如微微eNB、微eNB和家庭(毫微微)eNB。代替地，电子设备可以被实现为任何其他类型的基站，诸如NodeB和基站收发台(BTS)。电子设备可以包括：被配置为控制无线通信的主体(也称为基站设备)；以及设置在与主体不同的地方的一个或多个远程无线头端(RRH)。另外，下面将描述的各种类型的终端均可以通过暂时地或半持久性地执行基站功能而作为基站工作。
电子设备用于用户设备侧的情况下，可以被实现为移动终端(诸如智能电话、平板个人计算机(PC)、笔记本式PC、便携式游戏终端、便携式/加密狗型移动路由器和数字摄像装置)或者车载终端(诸如汽车导航设备)。此外，电子设备可以为安装在上述终端中的每个终端上的无线通信模块(诸如包括单个或多个晶片的集成电路模块)。
[关于终端设备的应用示例]
图8是示出可以应用本公开内容的技术的智能电话2500的示意性配置的示例的框图。智能电话2500包括处理器2501、存储器2502、存储装置2503、外部连接接口2504、摄像装置2506、传感器2507、麦克风2508、输入装置2509、显示装置2510、扬声器2511、无线通信接口2512、一个或多个天线开关2515、一个或多个天线2516、总线2517、电池2518以及辅助控制器2519。
处理器2501可以为例如CPU或片上系统(SoC)，并且控制智能电话2500的应用层和另外层的功能。存储器2502包括RAM和ROM，并且存储数据和由处理器2501执行的程序。存储装置2503可以包括存储介质，诸如半导体存储器和硬盘。外部连接接口2504为用于将外部装置(诸如存储卡和通用串行总线(USB)装置)连接至智能电话2500的接口。
摄像装置2506包括图像传感器(诸如电荷耦合器件(CCD)和互补金属 氧化物半导体(CMOS))，并且生成捕获图像。传感器2507可以包括一组传感器，诸如测量传感器、陀螺仪传感器、地磁传感器和加速度传感器。麦克风2508将输入到智能电话2500的声音转换为音频信号。输入装置2509包括例如被配置为检测显示装置2510的屏幕上的触摸的触摸传感器、小键盘、键盘、按钮或开关，并且接收从用户输入的操作或信息。显示装置2510包括屏幕(诸如液晶显示器(LCD)和有机发光二极管(OLED)显示器)，并且显示智能电话2500的输出图像。扬声器2511将从智能电话2500输出的音频信号转换为声音。
无线通信接口2512支持任何蜂窝通信方案(诸如LTE和LTE-先进)，并且执行无线通信。无线通信接口2512通常可以包括例如基带(BB)处理器2513和射频(RF)电路2514。BB处理器2513可以执行例如编码/解码、调制/解调以及复用/解复用，并且执行用于无线通信的各种类型的信号处理。同时，RF电路2514可以包括例如混频器、滤波器和放大器，并且经由天线2516来传送和接收无线信号。无线通信接口2512可以为其上集成有BB处理器2513和RF电路2514的一个芯片模块。如图8所示，无线通信接口2512可以包括多个BB处理器2513和多个RF电路2514。虽然图8示出其中无线通信接口2512包括多个BB处理器2513和多个RF电路2514的示例，但是无线通信接口2512也可以包括单个BB处理器2513或单个RF电路2514。
此外，除了蜂窝通信方案之外，无线通信接口2512可以支持另外类型的无线通信方案，诸如短距离无线通信方案、近场通信方案和无线局域网(LAN)方案。在此情况下，无线通信接口2512可以包括针对每种无线通信方案的BB处理器2513和RF电路2514。
天线开关2515中的每一个在包括在无线通信接口2512中的多个电路(例如用于不同的无线通信方案的电路)之间切换天线2516的连接目的地。
天线2516中的每一个均包括单个或多个天线元件(诸如包括在MIMO天线中的多个天线元件)，并且用于无线通信接口2512传送和接收无线信号。如图8所示，智能电话2500可以包括多个天线2516。虽然图8示出其中智能电话2500包括多个天线2516的示例，但是智能电话2500也可以包括单个天线2516。
此外，智能电话2500可以包括针对每种无线通信方案的天线2516。在此 情况下，天线开关2515可以从智能电话2500的配置中省略。
总线2517将处理器2501、存储器2502、存储装置2503、外部连接接口2504、摄像装置2506、传感器2507、麦克风2508、输入装置2509、显示装置2510、扬声器2511、无线通信接口2512以及辅助控制器2519彼此连接。电池2518经由馈线向图8所示的智能电话2500的各个块提供电力，馈线在图中被部分地示为虚线。辅助控制器2519例如在睡眠模式下操作智能电话2500的最小必需功能。
在图8所示的智能电话2500中，根据本发明实施例的用户设备侧无线通信设备的收发装置可以由无线通信接口2512实现。根据本发明实施例的用户设备侧的电子装置或无线通信设备的处理电路和/或各单元的功能的至少一部分也可以由处理器2501或辅助控制器2519实现。例如，可以通过由辅助控制器2519执行处理器2501的部分功能而减少电池2518的电力消耗。此外，处理器2501或辅助控制器2519可以通过执行存储器2502或存储装置2503中存储的程序而执行根据本发明实施例的用户设备侧的电子装置或无线通信设备的处理电路和/或各单元的功能的至少一部分。
[关于基站的应用示例]
图9是示出可以应用本公开内容的技术的gNB的示意性配置的示例的框图。gNB 2300包括一个或多个天线2310以及基站设备2320。基站设备2320和每个天线2310可以经由射频(RF)线缆彼此连接。
天线2310中的每一个均包括单个或多个天线元件(诸如包括在多输入多输出(MIMO)天线中的多个天线元件)，并且用于基站设备2320发送和接收无线信号。如图9所示，gNB 2300可以包括多个天线2310。例如，多个天线2310可以与gNB 2300使用的多个频带兼容。虽然图9示出其中gNB 2300包括多个天线2310的示例，但是gNB 2300也可以包括单个天线2310。
基站设备2320包括控制器2321、存储器2322、网络接口2323以及无线通信接口2325。
控制器2321可以为例如CPU或DSP，并且操作基站设备2320的较高层的各种功能。例如，控制器2321根据由无线通信接口2325处理的信号中的数据来生成数据分组，并经由网络接口2323来传递所生成的分组。控制器2321 可以对来自多个基带处理器的数据进行捆绑以生成捆绑分组，并传递所生成的捆绑分组。控制器2321可以具有执行如下控制的逻辑功能：该控制诸如为无线资源控制、无线承载控制、移动性管理、接纳控制和调度。该控制可以结合附近的gNB或核心网节点来执行。存储器2322包括RAM和ROM，并且存储由控制器2321执行的程序和各种类型的控制数据(诸如终端列表、传输功率数据以及调度数据)。
网络接口2323为用于将基站设备2320连接至核心网2324的通信接口。控制器2321可以经由网络接口2323而与核心网节点或另外的gNB进行通信。在此情况下，gNB 2300与核心网节点或其他gNB可以通过逻辑接口(诸如S1接口和X2接口)而彼此连接。网络接口2323还可以为有线通信接口或用于无线回程线路的无线通信接口。如果网络接口2323为无线通信接口，则与由无线通信接口2325使用的频带相比，网络接口2323可以使用较高频带用于无线通信。
无线通信接口2325支持任何蜂窝通信方案(诸如长期演进(LTE)和LTE-先进)，并且经由天线2310来提供到位于gNB 2300的小区中的终端的无线连接。无线通信接口2325通常可以包括例如BB处理器2326和RF电路2327。BB处理器2326可以执行例如编码/解码、调制/解调以及复用/解复用，并且执行层(例如L1、介质访问控制(MAC)、无线链路控制(RLC)和分组数据汇聚协议(PDCP))的各种类型的信号处理。代替控制器2321，BB处理器2326可以具有上述逻辑功能的一部分或全部。BB处理器2326可以为存储通信控制程序的存储器，或者为包括被配置为执行程序的处理器和相关电路的模块。更新程序可以使BB处理器2326的功能改变。该模块可以为插入到基站设备2320的槽中的卡或刀片。可替代地，该模块也可以为安装在卡或刀片上的芯片。同时，RF电路2327可以包括例如混频器、滤波器和放大器，并且经由天线2310来传送和接收无线信号。
如图9所示，无线通信接口2325可以包括多个BB处理器2326。例如，多个BB处理器2326可以与gNB 2300使用的多个频带兼容。如图9所示，无线通信接口2325可以包括多个RF电路2327。例如，多个RF电路2327可以与多个天线元件兼容。虽然图9示出其中无线通信接口2325包括多个BB处理器2326和多个RF电路2327的示例，但是无线通信接口2325也可以包括 单个BB处理器2326或单个RF电路2327。
在图9所示的gNB 2300中，根据本发明实施例的基站侧的无线通信设备的收发装置可以由无线通信接口2325实现。根据本发明实施例的基站侧的电子装置或无线通信设备的处理电路和/或各单元的功能的至少一部分也可以由控制器2321实现。例如，控制器2321可以通过执行存储在存储器2322中的程序而执行根据本发明实施例的基站侧的电子装置或无线通信设备的处理电路和/或各单元的功能的至少一部分。
在上面对本发明具体实施例的描述中，针对一种实施方式描述和/或示出的特征可以用相同或类似的方式在一个或更多个其它实施方式中使用，与其它实施方式中的特征相组合，或替代其它实施方式中的特征。
应该强调，术语“包括/包含”在本文使用时指特征、要素、步骤或组件的存在，但并不排除一个或更多个其它特征、要素、步骤或组件的存在或附加。
在上述实施例和示例中，采用了数字组成的附图标记来表示各个步骤和/或单元。本领域的普通技术人员应理解，这些附图标记只是为了便于叙述和绘图，而并非表示其顺序或任何其他限定。
此外，本发明的方法不限于按照说明书中描述的时间顺序来执行，也可以按照其他的时间顺序地、并行地或独立地执行。因此，本说明书中描述的方法的执行顺序不对本发明的技术范围构成限制。
尽管上面已经通过对本发明的具体实施例的描述对本发明进行了披露，但是，应该理解，上述的所有实施例和示例均是示例性的，而非限制性的。本领域的技术人员可在所附权利要求的精神和范围内设计对本发明的各种修改、改进或者等同物。这些修改、改进或者等同物也应当被认为包括在本发明的保护范围内。
此外，本发明实施例还包括：
(1)一种用于无线通信的电子装置，其包括处理电路，所述处理电路被配置为：
进行控制以通过至少第一小区和第二小区与基站进行载波聚合通信；以及
进行控制以通过所述第一小区向所述基站发送用于所述第二小区的波束故障恢复的第一信息。
(2)根据(1)所述的电子装置，其中，所述第一小区包括主小区或具有 上行链路的辅小区，所述第二小区包括不具有上行链路的辅小区。
(3)根据(1)所述的电子装置，其中，所述第一信息包括发生波束故障的所述第二小区的标识信息以及用于波束故障恢复的候选波束的标识信息。
(4)根据(3)所述的电子装置，其中，所述处理电路被配置为通过物理上行控制信道PUCCH发送所述第二小区的标识信息和所述候选波束的标识信息。
(5)根据(4)所述的电子装置，其中，所述PUCCH中包含指示位，所述指示位指示所述PUCCH中包含所述第一信息。
(6)根据(1)所述的电子装置，其中，所述处理电路还被配置为进行控制以通过所述第一小区向所述基站发送用于所述第一小区的波束故障恢复的第二信息。
(7)根据(6)所述的电子装置，其中，所述第二信息包括候选波束的标识信息，并且所述处理电路被配置为通过物理随机接入信道PRACH发送所述第二信息。
(8)根据(1)所述的电子装置，其中，所述处理电路还被配置为进行控制以接收分组信息，其中，所述分组信息指示用于所述载波聚合通信的小区集合的多个小区子集，在每个所述小区子集中包含至少一个所述第一小区。
(9)根据(8)所述的电子装置，其中，所述分组信息是基于以下规则确定的：
将同位小区分组到同一小区子集中；或者
优先将位置差别较大的小区分组到同一小区子集中。
(10)根据(8)所述的电子装置，其中，所述处理电路还被配置为进行控制以接收小区与小区标识之间的对应关系的信息，所述对应关系包括：
物理小区标识与经定义的全局标识之间的对应关系；或者
物理小区标识与经定义的组标识及局部标识之间的对应关系，
其中，所述全局标识用于区分所述小区集合中的各小区，所述组标识用于区分各小区子集，所述局部标识用于区分同一小区子集内的各小区。
(11)根据(10)所述的电子装置，其中，向所述基站发送的所述第一信息包括：
所述第二小区的所述全局标识；或者
所述第二小区的在其小区子集中的所述局部标识。
(12)根据(8)所述的电子装置，其中，所述处理电路被配置为进行控制以通过无线资源控制信令从所述基站接收所述分组信息。
(13)根据(3)所述的电子装置，其中，所述候选波束的标识信息包括所述候选波束在所述第二小区中的局部标识。
(14)根据(2)所述的电子装置，其中，所述处理电路被配置为基于以下规则中的一项或更多项进行波束故障恢复请求：
在主小区和辅小区均发生波束故障的情况下，优先进行主小区的波束故障恢复请求；以及
在具有上行链路的辅小区和不具有上行链路的辅小区均发生波束故障的情况下，优先进行具有上行链路的辅小区的波束故障恢复请求。
(15)根据(8)所述的电子装置，其中，所述处理电路被配置为：在两个或更多个小区子集中均发生波束故障的情况下，通过所述两个或更多个小区子集中的所述第一小区同时进行波束故障恢复请求。
(16)一种无线通信方法，包括：
通过至少第一小区和第二小区与基站进行载波聚合通信；以及
通过所述第一小区向所述基站发送用于所述第二小区的波束故障恢复的第一信息。
(17)一种用于无线通信的电子装置，其包括处理电路，所述处理电路被配置为：
进行控制以通过至少第一小区和第二小区与用户设备进行载波聚合通信；以及
进行控制以接收所述用户设备通过所述第一小区发送的用于所述第二小区的波束故障恢复的第一信息。
(18)根据(17)所述的电子装置，其中，所述第一小区包括主小区或具有上行链路的辅小区，所述第二小区包括不具有上行链路的辅小区。
(19)根据(17)所述的电子装置，其中，所述第一信息包括发生波束故障的所述第二小区的标识信息以及用于波束故障恢复的候选波束的标识信息。
(20)根据(19)所述的电子装置，其中，所述处理电路被配置为通过物理上行控制信道PUCCH接收所述第二小区的标识信息和所述候选波束的标识信息。
(21)根据(17)所述的电子装置，其中，所述处理电路还被配置为进行控制以通过所述第一小区从所述用户设备接收用于所述第一小区的波束故障恢复的第二信息。
(22)根据(21)所述的电子装置，其中，所述第二信息包括候选波束的标识信息，并且所述处理电路被配置为通过物理随机接入信道PRACH接收所述第二信息。
(23)根据(17)所述的电子装置，其中，所述处理电路还被配置为：确定分组信息并且进行控制以向所述用户设备发送所述分组信息，其中，所述分组信息指示用于所述载波聚合通信的小区集合的多个小区子集，在每个所述小区子集中包含至少一个所述第一小区。
(24)根据(23)所述的电子装置，其中，所述处理电路还被配置为确定小区与小区标识之间的对应关系并进行控制以向所述用户设备发送关于所述对应关系的信息，所述对应关系包括：
物理小区标识与经定义的全局标识之间的对应关系；或者
物理小区标识与经定义的组标识及局部标识之间的对应关系，
其中，所述全局标识用于区分所述小区集合中的各小区，所述组标识用于区分各小区子集，所述局部标识用于区分同一小区子集内的各小区。
(25)根据(24)所述的电子装置，其中，从所述用户设备接收的所述第一信息包括所述第二小区的所述全局标识或者所述第二小区的在其小区子集中的所述局部标识，并且
所述处理电路被配置为：根据所述全局标识来确定所述第二小区，或者根据所述第一小区以及所述局部标识来确定所述第二小区。
(26)根据(23)所述的电子装置，其中，所述处理电路被配置为进行控制以通过无线资源控制信令向所述用户设备发送所述分组信息。
(27)根据(19)所述的电子装置，其中，所述候选波束的标识信息包括所述候选波束在所述第二小区中的局部标识，并且所述处理电路被配置为基于所述第二小区以及所述局部标识来确定所述候选波束。
(28)一种无线通信方法，包括：
通过至少第一小区和第二小区与用户设备进行载波聚合通信；以及
接收所述用户设备通过所述第一小区发送的用于所述第二小区的波束故障恢复的第一信息。
(29)一种计算机可读介质，其包括可执行指令，当所述可执行指令被信息处理设备执行时，使得所述信息处理设备执行根据(16)或(28)所述的方法。

Claims (29)

  1. 一种用于无线通信的电子装置，其包括处理电路，所述处理电路被配置为：
    进行控制以通过至少第一小区和第二小区与基站进行载波聚合通信；以及
    进行控制以通过所述第一小区向所述基站发送用于所述第二小区的波束故障恢复的第一信息。
  2. 根据权利要求1所述的电子装置，其中，所述第一小区包括主小区或具有上行链路的辅小区，所述第二小区包括不具有上行链路的辅小区。
  3. 根据权利要求1所述的电子装置，其中，所述第一信息包括发生波束故障的所述第二小区的标识信息以及用于波束故障恢复的候选波束的标识信息。
  4. 根据权利要求3所述的电子装置，其中，所述处理电路被配置为通过物理上行控制信道PUCCH发送所述第二小区的标识信息和所述候选波束的标识信息。
  5. 根据权利要求4所述的电子装置，其中，所述PUCCH中包含指示位，所述指示位指示所述PUCCH中包含所述第一信息。
  6. 根据权利要求1所述的电子装置，其中，所述处理电路还被配置为进行控制以通过所述第一小区向所述基站发送用于所述第一小区的波束故障恢复的第二信息。
  7. 根据权利要求6所述的电子装置，其中，所述第二信息包括候选波束的标识信息，并且所述处理电路被配置为通过物理随机接入信道PRACH发送所述第二信息。
  8. 根据权利要求1所述的电子装置，其中，所述处理电路还被配置为进行控制以接收分组信息，其中，所述分组信息指示用于所述载波聚合通信的小区集合的多个小区子集，在每个所述小区子集中包含至少一个所述第一小区。
  9. 根据权利要求8所述的电子装置，其中，所述分组信息是基于以下规则确定的：
    将同位小区分组到同一小区子集中；或者
    优先将位置差别较大的小区分组到同一小区子集中。
  10. 根据权利要求8所述的电子装置，其中，所述处理电路还被配置为进行控制以接收小区与小区标识之间的对应关系的信息，所述对应关系包括：
    物理小区标识与经定义的全局标识之间的对应关系；或者
    物理小区标识与经定义的组标识及局部标识之间的对应关系，
    其中，所述全局标识用于区分所述小区集合中的各小区，所述组标识用于区分各小区子集，所述局部标识用于区分同一小区子集内的各小区。
  11. 根据权利要求10所述的电子装置，其中，向所述基站发送的所述第一信息包括：
    所述第二小区的所述全局标识；或者
    所述第二小区的在其小区子集中的所述局部标识。
  12. 根据权利要求8所述的电子装置，其中，所述处理电路被配置为进行控制以通过无线资源控制信令从所述基站接收所述分组信息。
  13. 根据权利要求3所述的电子装置，其中，所述候选波束的标识信息包括所述候选波束在所述第二小区中的局部标识。
  14. 根据权利要求2所述的电子装置，其中，所述处理电路被配置为基于以下规则中的一项或更多项进行波束故障恢复请求：
    在主小区和辅小区均发生波束故障的情况下，优先进行主小区的波束故障 恢复请求；以及
    在具有上行链路的辅小区和不具有上行链路的辅小区均发生波束故障的情况下，优先进行具有上行链路的辅小区的波束故障恢复请求。
  15. 根据权利要求8所述的电子装置，其中，所述处理电路被配置为：在两个或更多个小区子集中均发生波束故障的情况下，通过所述两个或更多个小区子集中的所述第一小区同时进行波束故障恢复请求。
  16. 一种无线通信方法，包括：
    通过至少第一小区和第二小区与基站进行载波聚合通信；以及
    通过所述第一小区向所述基站发送用于所述第二小区的波束故障恢复的第一信息。
  17. 一种用于无线通信的电子装置，其包括处理电路，所述处理电路被配置为：
    进行控制以通过至少第一小区和第二小区与用户设备进行载波聚合通信；以及
    进行控制以接收所述用户设备通过所述第一小区发送的用于所述第二小区的波束故障恢复的第一信息。
  18. 根据权利要求17所述的电子装置，其中，所述第一小区包括主小区或具有上行链路的辅小区，所述第二小区包括不具有上行链路的辅小区。
  19. 根据权利要求17所述的电子装置，其中，所述第一信息包括发生波束故障的所述第二小区的标识信息以及用于波束故障恢复的候选波束的标识信息。
  20. 根据权利要求19所述的电子装置，其中，所述处理电路被配置为通过物理上行控制信道PUCCH接收所述第二小区的标识信息和所述候选波束的标识信息。
  21. 根据权利要求17所述的电子装置，其中，所述处理电路还被配置为进行控制以通过所述第一小区从所述用户设备接收用于所述第一小区的波束故障恢复的第二信息。
  22. 根据权利要求21所述的电子装置，其中，所述第二信息包括候选波束的标识信息，并且所述处理电路被配置为通过物理随机接入信道PRACH接收所述第二信息。
  23. 根据权利要求17所述的电子装置，其中，所述处理电路还被配置为：确定分组信息并且进行控制以向所述用户设备发送所述分组信息，其中，所述分组信息指示用于所述载波聚合通信的小区集合的多个小区子集，在每个所述小区子集中包含至少一个所述第一小区。
  24. 根据权利要求23所述的电子装置，其中，所述处理电路还被配置为确定小区与小区标识之间的对应关系并进行控制以向所述用户设备发送关于所述对应关系的信息，所述对应关系包括：
    物理小区标识与经定义的全局标识之间的对应关系；或者
    物理小区标识与经定义的组标识及局部标识之间的对应关系，
    其中，所述全局标识用于区分所述小区集合中的各小区，所述组标识用于区分各小区子集，所述局部标识用于区分同一小区子集内的各小区。
  25. 根据权利要求24所述的电子装置，其中，从所述用户设备接收的所述第一信息包括所述第二小区的所述全局标识或者所述第二小区的在其小区子集中的所述局部标识，并且
    所述处理电路被配置为：根据所述全局标识来确定所述第二小区，或者根据所述第一小区以及所述局部标识来确定所述第二小区。
  26. 根据权利要求23所述的电子装置，其中，所述处理电路被配置为进行控制以通过无线资源控制信令向所述用户设备发送所述分组信息。
  27. 根据权利要求19所述的电子装置，其中，所述候选波束的标识信息包括所述候选波束在所述第二小区中的局部标识，并且所述处理电路被配置为基于所述第二小区以及所述局部标识来确定所述候选波束。
  28. 一种无线通信方法，包括：
    通过至少第一小区和第二小区与用户设备进行载波聚合通信；以及
    接收所述用户设备通过所述第一小区发送的用于所述第二小区的波束故障恢复的第一信息。
  29. 一种计算机可读介质，其包括可执行指令，当所述可执行指令被信息处理设备执行时，使得所述信息处理设备执行根据权利要求16或28所述的方法。
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