WO2019205997A1 - 用于无线通信的电子设备和方法、计算机可读存储介质 - Google Patents

用于无线通信的电子设备和方法、计算机可读存储介质 Download PDF

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Publication number
WO2019205997A1
WO2019205997A1 PCT/CN2019/082986 CN2019082986W WO2019205997A1 WO 2019205997 A1 WO2019205997 A1 WO 2019205997A1 CN 2019082986 W CN2019082986 W CN 2019082986W WO 2019205997 A1 WO2019205997 A1 WO 2019205997A1
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Prior art keywords
group
electronic device
physical downlink
base station
downlink control
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PCT/CN2019/082986
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English (en)
French (fr)
Inventor
曹建飞
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索尼公司
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Publication date
Application filed by 索尼公司 filed Critical 索尼公司
Priority to US17/044,339 priority Critical patent/US20210083914A1/en
Priority to EP19792643.9A priority patent/EP3768026A4/en
Priority to CN201980010774.3A priority patent/CN111656845A/zh
Publication of WO2019205997A1 publication Critical patent/WO2019205997A1/zh

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    • 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
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/261—Details of reference signals
    • H04L27/2613—Structure of the reference signals
    • 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
    • H04B7/022—Site diversity; Macro-diversity
    • H04B7/024—Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems
    • 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
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0617—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal for beam forming
    • 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
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0868—Hybrid systems, i.e. switching and combining
    • H04B7/088—Hybrid systems, i.e. switching and combining 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
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/121—Wireless traffic scheduling for groups of terminals or users
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/27—Transitions between radio resource control [RRC] states

Definitions

  • the present application relates to the field of wireless communication technologies, and in particular, to a configuration of a downlink control channel in a wireless communication system. More particularly, it relates to an electronic device and method for wireless communication and a computer readable storage medium.
  • New Radio is a next-generation wireless access method for Long Term Evolution (LTE), and is a Radio Access Technology (RAT) different from LTE.
  • NR is capable of coping with various use cases including Enhanced Mobile Broadband (eMBB), Massive Machine Type Communications (mMTC), and Ultra reliable and low latency communications (URLLC). (use case) access technology.
  • eMBB Enhanced Mobile Broadband
  • mMTC Massive Machine Type Communications
  • URLLC Ultra reliable and low latency communications
  • a group shared physical downlink control channel (GC-PDCCH) is defined in order to enable some user equipments (User Equipments, UEs) to receive some common information. ), for carrying information that is vital to a group of UEs, such as a Slot Format Indicator (SFI), which indicates that the UE is Orthogonal Frequency Division Multiplexing of one slot (Orthogonal Frequency Division Multiplexing) , OFDM) symbol and the location of the downstream OFDM symbol.
  • SFI Slot Format Indicator
  • the content in the GC-PDCCH is shared by a group of UEs, and the slot position occupied by the downlink channel is also within the control region. Moreover, even if the UE cannot decode the content in the GC-PDCCH, the UE does not affect the subsequent process.
  • an electronic device for wireless communication comprising: processing circuitry configured to: determine a pair of beam pairs formed between a user equipment and a base station, each beam pair comprising one transmission of a base station a beam and a receive beam of the user equipment; and determining one or more receive beams to be used for receiving the group shared physical downlink control channel from the base station, the set of shared physical downlink control channels carrying control information for a group of user equipment and After being beamformed by the base station, it is transmitted in multiple transmit beams.
  • a method for wireless communication comprising: determining a pair of beam pairs formed between a user equipment and a base station, each beam pair comprising one transmit beam of the base station and one receive beam of the user equipment And determining one or more receive beams to be used for receiving the group shared physical downlink control channel from the base station, the set of shared physical downlink control channels carrying control information for a group of user equipments and beamforming by the base station Multiple transmit beams are transmitted.
  • an electronic device for wireless communication comprising: processing circuitry configured to: determine a pair of beam pairs formed between a user equipment and a base station, each beam pair comprising one of the base stations Transmitting a beam and a receive beam of the user equipment; and determining a plurality of transmit beams to be used by the transmit group to share the physical downlink control channel, the set of shared physical downlink control channels being transmitted by the beamforming by the plurality of transmit beams, and carrying Control information for a group of user devices.
  • a method for wireless communication comprising: determining a pair of beam pairs formed between a user equipment and a base station, each beam pair comprising a transmit beam of a base station and a reception of a user equipment a beam; and determining a plurality of transmit beams to be used by the transmitting group to share the physical downlink control channel, the group shared physical downlink control channel being transmitted by the beamforming by the plurality of transmit beams, and carrying control information for a group of user equipments .
  • a computer program code and computer program product for implementing the above method for wireless communication, and a computer having the computer program code for implementing the above method for wireless communication recorded thereon Readable storage media.
  • the electronic device and method according to the present application realizes spatial beam scanning of the GC-PDCCH by transmitting the GC-PDCCH with multiple transmit beams in a beamforming manner, thereby increasing the coverage of the GC-PDCCH, thereby making more
  • the UE can receive the GC-PDCCH and acquire the content therein.
  • FIG. 1 is a functional block diagram showing an electronic device for wireless communication in accordance with one embodiment of the present application
  • FIG. 2 is a schematic diagram showing a transmitting beam generated by a transmitting antenna array
  • FIG. 3 shows a schematic diagram of a GC-PDCCH transmitting with multiple transmit beams
  • FIG. 4 is a schematic diagram showing a GC-PDCCH transmitting in multiple transmit beams in a case where the monitoring period of the GC-PDCCH is k slots;
  • FIG. 5 is a schematic diagram showing the transmission of a GC-PDCCH with different transmit beams in the case where two TRPs serve one cell;
  • FIG. 6 is a functional block diagram showing an electronic device for wireless communication in accordance with another embodiment of the present application.
  • FIG. 7 is a functional block diagram showing an electronic device for wireless communication according to another embodiment of the present application.
  • FIG. 8 is a functional block diagram showing an electronic device for wireless communication according to another embodiment of the present application.
  • FIG. 9 is a schematic diagram showing an information flow of transceiving of a multi-beam GC-PDCCH between a base station and a user equipment;
  • FIG. 10 is a schematic diagram showing an information flow of a GC-PDCCH based beam pair link failure detection between a base station and a user equipment;
  • FIG. 11 shows a flow chart of a method for wireless communication in accordance with one embodiment of the present application.
  • FIG. 12 shows a flow chart of a method for wireless communication in accordance with another embodiment of the present application.
  • FIG. 13 is a block diagram showing a first example of a schematic configuration of an eNB or a gNB to which the technology of the present disclosure may be applied;
  • FIG. 14 is a block diagram showing a second example of a schematic configuration of an eNB or a gNB to which the technology of the present disclosure may be applied;
  • 15 is a block diagram showing an example of a schematic configuration of a smartphone that can apply the technology of the present disclosure
  • 16 is a block diagram showing an example of a schematic configuration of a car navigation device to which the technology of the present disclosure can be applied;
  • 17 is a block diagram of an exemplary structure of a general purpose personal computer in which a method and/or apparatus and/or system in accordance with an embodiment of the present invention may be implemented.
  • the GC-PDCCH is shared by a group of UEs, and its content can be used, for example, to guide the next behavior of the UE.
  • the content may be used to prepare a PDCCH or a Physical Downlink Shared Channel (PDSCH) decoding, a transition between uplink and downlink, and a hybrid automatic repeat request (Hybrid Automatic Repeat reQuest). , HARQ) ACK/NACK feedback, and so on.
  • the content can be used for channel state information (CSI) reporting and the like.
  • CSI channel state information
  • CORESET control resource set
  • the UE-specific PDCCH may also be adjusted by the GC-PDCCH.
  • the electronic device 100 includes: a first determining unit 101 configured to determine a user device and Forming paired beam pairs between the base stations, each beam pair comprising one transmit beam of the base station and one receive beam of the user equipment; and a second determining unit 102 configured to determine to receive the group shared physical downlink control channel from the base station One or more receive beams used, the set of shared physical downlink control channels carrying control information for a group of user equipments and being beamformed by the base station and transmitted in multiple transmit beams.
  • a first determining unit 101 configured to determine a user device and Forming paired beam pairs between the base stations, each beam pair comprising one transmit beam of the base station and one receive beam of the user equipment
  • a second determining unit 102 configured to determine to receive the group shared physical downlink control channel from the base station One or more receive beams used, the set of shared physical downlink control channels carrying control information for a group of user equipments and being beamformed by the base station and transmitted in multiple transmit beams.
  • the first determining unit 101 and the second determining unit 102 can be implemented by one or more processing circuits, which can be implemented, for example, as a chip. Also, it should be understood that the various functional units in the apparatus shown in FIG. 1 are only logical blocks that are divided according to the specific functions that they are implemented, and are not intended to limit the specific implementation. The same applies to the examples of other electronic devices to be described later.
  • the electronic device 100 may be provided, for example, on the user equipment (UE) side or communicably connected to the UE.
  • the electronic device 100 can be implemented at the chip level or at the device level.
  • the electronic device 100 can operate as the user device itself, and can also include external devices such as a memory, a transceiver (not shown), and the like.
  • the memory can be used to store programs and related data information that the user device needs to perform to implement various functions.
  • the transceiver may include one or more communication interfaces to support communication with different devices (e.g., base stations, other user equipment, etc.), and implementations of the transceivers are not specifically limited herein. The same applies to the description of other configuration examples of the electronic device on the user device side.
  • the first determining unit 101 is configured to perform beam training between the base station and the user equipment to determine a receive beam paired with each transmit beam of the base station, where one transmit beam of the base station and the user equipment are paired with the same A receive beam forms a beam pair.
  • the transmit and receive beams in different directions respectively correspond to a specific set of parameters of the spatial filter applied to the transmit antenna array to transmit transmit beams in a predetermined direction, or to receive antenna arrays to receive receive beams in a predetermined direction .
  • FIG. 2 is a schematic diagram showing a transmitting beam generated by a transmitting antenna array, wherein Mg and Ng respectively represent the number of sub-antenna panels in the vertical direction and the horizontal direction, and the size of the antenna array on each sub-panel is M ⁇ N.
  • the first determining unit 101 can also obtain the quality of each beam pair link by measuring the channel quality. Specifically, the first determining unit 101 may measure the reference signal received power or the block error rate. Then, the UE transmits the information of the beam pair determined by the first determining unit 101 to the base station. As described above, the UE can transmit the information of the beam pair to the base station through the transceiver.
  • the base station when the UE initially accesses, the base station performs beam scanning by transmitting a downlink Synchronization Signal Block (SSB).
  • the first determining unit 101 measures the SSB, thereby obtaining a transmit beam direction (which may have one or more) that the base station is more suitable for the UE on the downlink, and recording a receive beam paired with the transmit beam, thereby forming one or more Beam pair.
  • the UE may report a transmit beam of a base station suitable for the UE to the base station by using a Physical Random Access Channel (PRACH).
  • PRACH Physical Random Access Channel
  • the UE may send an SSB Resource Indicator (SSBRI) to the base station to report the transmit beam suitable for the UE as a beam identifier.
  • SSBRI SSB Resource Indicator
  • the base station configures a dedicated Channel State Information-Reference Signal (CSI-RS) resource for the UE.
  • CSI-RS Channel State Information-Reference Signal
  • the first determining unit 101 similarly measures the CSI-RS, thereby obtaining a transmit beam direction in which the base station is more suitable for the UE on the downlink, and recording a receive beam paired with the transmit beam, thereby constituting one or more beam pairs.
  • the UE may report the transmit beam of the base station suitable for the UE to the base station by using a Physical Uplink Control Channel (PUCCH).
  • PUCCH Physical Uplink Control Channel
  • the UE may send a CSI-RS Resource Indicator (CRI) to the base station to report the transmit beam suitable for the UE as a beam identifier.
  • CRI CSI-RS Resource Indicator
  • the UE reports CRI1 and CRI3 to the base station, it indicates that the transmit beams 1 and 3 corresponding to CRI1 and CRI3 are suitable for the UE.
  • the first determining unit 101 may also measure the quality of the beam pair link by measuring Reference Signal Receiving Power (RSRP) or Reference Signal Receiving Quality (RSRQ) of the CSI-RS.
  • RSRP Reference Signal Receiving Power
  • RSRQ Reference Signal Receiving Quality
  • the second determining unit 102 needs to determine which receive beam to use (determining which receive beams are used if the capabilities of the UE allow it) for reception.
  • the GC-PDCCH carries control information for a group of user equipments, and is transmitted in a specific multiple direction by performing beamforming by the base station, that is, by using a specific multiple transmit beams. Since the GC-PDCCH transmits in multiple directions, it is equivalent to partial beam scanning, thereby increasing the probability that the GC-PDCCH is received by more UEs.
  • the second determining unit 102 may determine the receive beam in the beam pair that is optimal in link quality to receive the receive beam of the GC-PDCCH.
  • the UE does not know which transmit beams the base station will use to transmit the GC-PDCCH, and thus the receive beam can be selected based on a specific policy.
  • the second determining unit 102 may also select, according to historical experience, a receive beam that matches a transmit beam that the base station uses most frequently for the UE as the receive GC-PDCCH. Receive beam.
  • the second determining unit 102 is configured to determine a receive beam to be used by the receiving GC-PDCCH based on a CORESET configured by the base station for the user equipment, wherein the CORESET includes a time-frequency resource and a spatial domain resource of the GC-PDCCH.
  • the CORESET is used to inform the UE which frequency-frequency resources and air-domain resources should be received on the GC-PDCCH.
  • the base station notifies the UE of the location of the GC-PDCCH in advance, including the time-frequency location and the spatial location.
  • the second determining unit 102 may determine a transmit beam of the base station based on the airspace resource described above, and perform reception of the GC-PDCCH using a receive beam paired with the transmit beam. For example, in the case where there are multiple receive beams paired with multiple transmit beamforming, ie, there are multiple beam pairs including transmit beams, the second determining unit 102 may select based on the link quality of the beam pairs. Receiving a receive beam of the GC-PDCCH. Preferably, the receive beam in the beam pair with the best link quality can be selected.
  • the spatial domain resource of the GC-PDCCH includes directional information of beamforming.
  • the second determining unit 102 may determine, by using the directionality information, a transmit beam sent by the base station, so as to determine a receive beam paired with the transmit beam as a receive beam that receives the GC-PDCCH.
  • the second determining unit 102 is further configured to acquire information of the CORESET through higher layer signaling.
  • the high-level signaling is, for example, Radio Resource Control (RRC) signaling
  • RRC Radio Resource Control
  • the CORESET in the RRC signaling includes a Group Common Transmission Configuration Indicator (GC-TCI) for indicating the GC-PDCCH.
  • Airspace resources for example, Radio Resource Control (RRC) signaling
  • RRC Radio Resource Control
  • GC-TCI Group Common Transmission Configuration Indicator
  • the high layer signaling may be both RRC signaling and Medium Access Control (MAC) signaling, where the CORESET in the RRC signaling includes a GC-TCI, and is used to represent the airspace resource of the GC-PDCCH.
  • the MAC signaling is used to further select the GC-TCI in the RRC signaling. For example, more TCI states are configured in the RRC signaling, such as M TCI states, and MAC signaling is used to select K states of the M states for reference when the UE receives the GC-PDCCH.
  • the GC-TCI may include information of a reference signal beam that is quasi-co-located with the GC-PDCCH.
  • each TCI state includes an ID of a TCI state, Quasi Co-Location (QCL) Type 1 and QCL Type 2.
  • QCL Type 1 or Type 2 QCL information is included, where the reference signal of the QCL information is CSI-RS, SSB or (Tracking Reference Signal, TRS), and the QCL type is Type A/B/C/D, where Type D and The spatial filter, ie the receive beam correlation.
  • the TCI status includes: [SSB1
  • these TCI states are in a manner known by both the base station and the UE, such as a Demodulation Reference Signal (DMRS) corresponding to the GC-PDCCH. Therefore, after the UE is configured with the GC-TCI state by the base station, the UE can know which receive beams are used on which time-frequency resources to detect the GC-PDCCH.
  • DMRS Demodulation Reference Signal
  • the base station may configure a parameter tci-StatesGCPDCCH for the UE, where the IDs of the plurality of TCI states are included, so that the UE sequentially refers to the reference signal in the TCI state to receive the content of the GC-PDCCH.
  • the tci-StatesGCPDCCH is a subset of the TCI state and is used to provide a QCL relationship between a reference signal in a set of downlink reference signals and a DMRS port of the GC-PDCCH.
  • the TCI state configuration for the GC-PDCCH is performed for multiple UEs, so for one of the UEs, there may be no suitable receiving beam to receive. All CORESET. Therefore, in the configuration of CORESET, the TCI state of the GC-PDCCH and the TCI state of the UE-specific PDCCH need to be separately configured.
  • multiple GC-TCIs can be included in one CORESET. However, it can also be set to include only one GC-TCI in each CORESET, and multiple CORESETs are configured to implement transmission of multiple GC-PDCCH beams.
  • the UE also needs to know the specific time of reference to each GC-TCI state, such as which GC-TCI state to refer to on which OFDM symbol, thereby making adjustment of the receive beam. Furthermore, due to the limitations of the radio frequency portion of the base station antenna for beamforming, multiple GC-PDCCHs may need to be transmitted separately in different OFDM symbols.
  • FIG. 3 shows a schematic diagram of a GC-PDCCH transmitting with multiple transmit beams. It can be seen that in one time slot, the transmit beams are transmitted in different directions in different OFDM symbols, and the GC-PDCCH of each transmit beam has the same content, thereby improving the possibility that the UE receives the GC-PDCCH. And increase the number of UEs that receive the GC-PDCCH.
  • the second determining unit 102 is further configured to acquire a monitoring period configuration for performing monitoring of the GC-PDCCH from the base station, and perform decoding of the GC-PDCCH based on the monitoring period configuration.
  • the GC-PDCCH For the GC-PDCCH, its content can be dynamically changed every time slot, so that the base station dynamically configures the SFI every time slot.
  • the content of the GC-PDCCH may also last for several times (for example, k, k is an integer greater than 1).
  • the time slot of the GC-PDCCH is unchanged, so that the monitoring period of the UE for the GC-PDCCH also becomes k time slots.
  • the base station can transmit the GC-PDCCH of the same content on k time slots, that is, the time-frequency resource for transmitting the GC-PDCCH increases. Accordingly, more beam-based GC-PDCCHs can be transmitted, thereby further increasing the coverage of the GC-PDCCH.
  • FIG. 4 is a schematic diagram showing the GC-PDCCH transmitting with multiple transmit beams in the case where the monitoring period of the GC-PDCCH is k slots.
  • the monitoring period is one time slot
  • only the transmitting beams A, B, C, and D are used to transmit the GC-PDCCH; and when the monitoring period is 2 time slots, additional transmissions may be used.
  • Beams E, F, and G transmit GC-PDCCH; even until the last time slot, the base station can use the additional transmit beams H, I to transmit the GC-PDCCH.
  • the number of transmit beams that transmit the GC-PDCCH increases as the monitoring period increases.
  • the GC-PDCCH may not be transmitted in a later portion of the k slots.
  • the GC-PDCCH may be beam-shaped by a plurality of transmitting and receiving points and then transmitted in multiple beams.
  • multiple TRPs transmit the same content of the GC-PDCCH to the UE through the respective transmit beams.
  • Each TRP can be configured with a separate CORESET, or a CORESET of all TRPs can be configured by one or more of the multiple TRPs.
  • FIG. 5 shows a schematic diagram of transmitting a GC-PDCCH with different transmit beams in case two TRPs serve one cell. It can be seen that TRP1 and TRP2 respectively transmit the GC-PDCCH on different time-frequency resources using different transmit beams.
  • the electronic device 100 improves the probability of receiving the GC-PDCCH by receiving the GC-PDCCH transmitted by the base station by using the plurality of transmit beams by beamforming, thereby enhancing the utilization of the GC-PDCCH. .
  • FIG. 6 shows a functional block diagram of an electronic device 100 in accordance with another embodiment of the present application.
  • the electronic device 100 in addition to the first determining unit 101 and the second determining unit 102 described with reference to FIG. 1, the electronic device 100 further includes: a detecting unit 103 configured to receive a time-frequency resource of the GC-PDCCH.
  • the GC-PDCCH is blindly decoded in the search space, and the Group Common Radio Network Temporary Identity (GC-RNTI) is used to determine whether the GC-PDCCH is used for the UE.
  • GC-RNTI Group Common Radio Network Temporary Identity
  • the base station configures the GC-RNTI to the electronic device 100 in advance through high layer signaling, so that the base station can configure the same GC-RNTI for multiple different UEs so that the GC-PDCCH can be applied to a group of UEs.
  • the detection unit 103 can be implemented by one or more processing circuits, which can be implemented, for example, as a chip.
  • the respective functional units in the apparatus shown in FIG. 6 are only logical modules that are divided according to the specific functions they implement, and are not intended to limit the specific implementation.
  • the detecting unit 103 performs a Cyclic Redundancy Check (CRC) check on the content of the GC-PDCCH in the search space of the time-frequency resource that receives the GC-PDCCH, and if the CRC check can be passed, the GC is described.
  • the PDCCH is for the UE (ie, the UE is a UE in a group of UEs for which the GC-PDCCH is directed, and is a scheduled UE), otherwise the GC-PDCCH is not for the UE (ie, the UE is not the UE)
  • the UE in the middle is a non-scheduled UE).
  • the detecting unit 103 may be further configured to measure the RSRP or the Block Error Rate (BLER) of the reference signal (such as DMRS) of the received GC-PDCCH to determine Whether the link of the beam pair consisting of the corresponding transmit beam and the receive beam fails. For example, when the RSRP is less than the predetermined threshold or the BLER is higher than the predetermined level, the detecting unit 103 considers that the beam pair link failure has occurred. Since the GC-PDCCH appears earlier in time and is generally located in the first OFDM symbol of the control region, the operation by the detecting unit 103 can cause the UE to discover the beam pair link failure earlier. Moreover, for non-scheduled UEs, the GC-PDCCH can also be used for beam pair link failure detection.
  • BLER Block Error Rate
  • the UE may notify the base station of the beam pair failure message in time, so that the base station performs a corresponding operation, such as adjusting a transmit beam for the UE, and the like.
  • FIG. 7 shows a functional block diagram of an electronic device 300 according to another embodiment of the present application.
  • the electronic device 300 includes: a first determining unit 301 configured to determine a formation between a user equipment and a base station. Paired beam pairs, each beam pair comprising one transmit beam of the base station and one receive beam of the user equipment; and a second determining unit 302 configured to determine a plurality of transmit beams to be used by the transmit group to share the physical downlink control channel,
  • the group shared physical downlink control channel transmits and carries control information for a group of user equipments by beamforming by the plurality of transmit beams.
  • the first determining unit 301 and the second determining unit 302 can be implemented by one or more processing circuits, which can be implemented, for example, as a chip. Also, it should be understood that the various functional units in the apparatus shown in FIG. 7 are only logical blocks that are divided according to the specific functions that they are implemented, and are not intended to limit the specific implementation. The same applies to the examples of other electronic devices to be described later.
  • the electronic device 700 can be provided, for example, at the base station side or communicably connected to the base station.
  • the electronic device 700 can be implemented at the chip level or can also be implemented at the device level.
  • electronic device 700 can operate as a base station itself, and can also include external devices such as a memory, a transceiver (not shown), and the like.
  • the memory can be used to store programs and related data information that the base station needs to perform to implement various functions.
  • the transceiver may include one or more communication interfaces to support communication with different devices (eg, user equipment, other base stations, etc.), and implementations of the transceiver are not specifically limited herein. The same applies to the description of other configuration examples of the electronic device on the base station side.
  • the first determining unit 301 performs beam training together with the user equipment as a function module on the base station side. Specifically, it can be implemented by SSB beam scanning or CSI-RS beam scanning, and the detailed description has been given in detail in the first embodiment, and will not be repeated here.
  • the GC-PDCCH is a PDCCH for a group of UEs, and how the UEs are grouped may depend on the content carried in the GC-PDCCH.
  • the S-FI may be included in the GC-PDCCH, and is used to indicate the uplink and downlink directions of the system at different times for a part of the UE that can dynamically switch the downlink and uplink transmissions;
  • the priority-pre-emption indication may be included in the GC-PDCCH.
  • a part of the UE that is interfered by other UEs indicates the existence of the interference; the GC-PDCCH may include a power control indication for indicating the UE that needs to adjust the uplink transmit power.
  • the second determining unit 102 may determine a transmit beam to be used for transmitting the GC-PDCCH based on one or more of the following: information of a beam pair of each of the set of user equipments and the base station ; the priority of each user.
  • the common transmit beam is preferentially determined as a transmit beam for transmitting the GC-PDCCH.
  • the transmit beam suitable for more UEs is preferentially determined as the transmit beam for transmitting the GC-PDCCH.
  • the base station serves three UEs, and after the beam scanning by the CSI-RS, the UE reports the signal to the base station as follows: The UE1 reports the CRI3 and CRI5. CRI7; UE2 reported CRI3 and CRI7; UE3 reported CRI7 and CRI9.
  • the second determining unit 102 can select a transmit beam corresponding to CRI7. If the GC-PDCCH can be transmitted through two transmit beams, the second determining unit 102 can select a transmit beam corresponding to CRI3 (CRI3 is reported by 2 UEs) in addition to CRI7.
  • CRI3 is reported by 2 UEs
  • the second determining unit 102 may also preferentially select a transmit beam suitable for a user with a high priority.
  • the priority of the UE may include whether the UE is scheduled.
  • the scheduled UE has a greater need to decode the GC-PDCCH than the unscheduled UE, and therefore, the priority of the scheduled UE can be set higher than the priority of the unscheduled UE.
  • the base station After determining the transmit beam, the base station performs beamforming on the GC-PDCCH carrying the control information of the group of UEs, and transmits the determined transmit beam.
  • the electronic device 300 further includes: a configuration unit 303, configured to configure a CORESET for the UE, where the CORESET includes a time-frequency resource and a spatial domain resource of the GC-PDCCH.
  • the spatial domain resource of the GC-PDCCH may include directional information of beamforming. The directional information may indicate which transmit beams the base station will use to transmit the GC-PDCCH.
  • the configuration unit 303 can provide information of the CORESET to the UE through higher layer signaling.
  • the high layer signaling may be RRC signaling, and the CORESET in the RRC signaling includes a GC-TCI for indicating a spatial resource of the GC-PDCCH.
  • the GC-TCI may include information of a reference signal beam that is quasi-co-located with the GC-PDCCH beam. Details regarding the GC-TCI have been given in the first embodiment, which are equally applicable to the present embodiment and will not be repeated here.
  • the high layer signaling may also be both RRC signaling and MAC signaling, where the CORESET in the RRC signaling includes a GC-TCI, which is used to represent the spatial resource of the GC-PDCCH, and the MAC signaling is used for the RRC signaling.
  • the GC-TCI in the middle is further selected.
  • One or more GC-TCIs can be included in a CORESET.
  • the base station may configure one TCI state in one CORESET, but configure multiple CORESETs for a group of UEs to implement multi-beam GC-PDCCH transmission.
  • multiple CORESETs should be transmitted in different OFDM symbols.
  • configuration Unit 203 can also provide the time information to the UE.
  • the configuration unit 303 can set a monitoring period configuration for performing monitoring of the GC-PDCCH for the user equipment, and perform transmission of the GC-PDCCH based on the monitoring period configuration.
  • the configuration unit 303 may separately transmit the GC-PDCCH in multiple time slots. These GC-PDCCHs have the same content, for example, as shown in FIG. By increasing the time-frequency resources for transmitting the GC-PDCCH, more beam-based GC-PDCCHs can be transmitted, thereby further increasing the coverage of the GC-PDCCH. It should be understood that even when the monitoring period is more than one time slot, the GC-PDCCH can be transmitted only in the first time slot, which is not limitative.
  • the electronic device 300 may be located on the TRP side, and the configuration unit 303 transmits a GC-PDCCH having the same content with other transmitting and receiving points in the same cell.
  • each TRP (specifically, the configuration unit 303) may separately configure the respective CORESET, or may configure the CORESET of all TRPs by one or several of the plurality of TRPs.
  • TRP1 and TRP2 respectively transmit GC-PDCCHs having the same content on different time-frequency resources using different transmit beams.
  • the UE may perform beam pair link failure determination by measuring the RSRP or BLER of the received DMRS of the GC-PDCCH, and provide a beam pair link to the base station when it is determined that the beam pair link fails.
  • the failure indication correspondingly, the configuration unit 303 of the embodiment may obtain the beam pair link failure indication from the UE.
  • the electronic device 300 transmits the GC-PDCCH by using multiple transmit beams by beamforming, which expands the coverage of the GC-PDCCH and improves the probability that the UE receives the GC-PDCCH, thereby enhancing the probability. Utilization of GC-PDCCH.
  • FIG. 9 is a schematic diagram showing an information flow of transceiving of a multi-beam GC-PDCCH between a base station and a user equipment.
  • the base station performs downlink beam scanning on the UE via the SSB or the CSI-RS, and the UE detects the SSB or the CSI-RS, and reports the transmit beam that is more suitable for the UE to the base station, for example, the foregoing SSBRI or CRI may be used. To report.
  • the base station determines, for a group of UEs, a transmit beam to be used for transmitting the GC-PDCCH, and notifies the UE to the UE using RRC signaling, for example, by including the GC-TCI in the CORESET, for transmitting the GC-PDCCH.
  • the transmit beam, one CORESET may include one or more GC-TCIs.
  • the UE can learn which transmit beam to use for the GC-PDCCH to select a receive beam paired with one of the transmit beams.
  • the base station transmits a GC-PDCCH having the same content by using beamforming, that is, performing beam scanning on the repetitive GC-PDCCH, and the UE uses the selected receiving beam to receive the GC-PDCCH.
  • the UE also performs blind decoding on the received GC-PDCCH in the search space of the time-frequency resource of the GC-PDCCH to determine whether the GC-PDCCH is for the UE.
  • FIG. 10 is a schematic diagram showing an information flow of a GC-PDCCH based beam pair link failure detection between a base station and a user equipment.
  • the first half of Fig. 10 is the same as the respective processes in Fig. 9, and will not be repeated here.
  • the UE may alternatively or additionally perform the beam pair link, for example, by measuring the RSRP or BLER of the DMRS of the GC-PDCCH. Failure detection, and transmitting a beam pair link failure indication to the base station, in addition to receiving a beam monitoring failure response sent by the base station (not shown in FIG. 10).
  • both the scheduled UE and the non-scheduled UE may perform beam pair link failure detection based on the GC-PDCCH.
  • the base station schedules resources for the UE and transmits a UE-specific PDCCH to the UE, and the UE performs beam pair link failure detection based on the dedicated PDCCH.
  • the base stations in Figures 9 and 10 can also be TRPs. It should be noted that the information flow in Figures 9 and 10 is merely illustrative and is not intended to limit the application.
  • FIG. 11 shows a flow chart of a method for wireless communication according to an embodiment of the present application, the method comprising: determining a paired beam pair formed between a user equipment and a base station (S11), each beam pair comprising a base station a transmit beam and a receive beam of the user equipment; and determining one or more receive beams to be used for receiving the GC-PDCCH from the base station (S12), the GC-PDCCH carrying control information for a group of user equipment and After the base station performs beamforming, it transmits with multiple transmit beams.
  • the method is performed, for example, on the user equipment side.
  • the GC-PDCCH may also be beamformed by multiple TRPs and then transmitted in multiple beams.
  • the receive beam to be used for receiving the GC-PDCCH may be determined based on the CORESET configured by the base station for the user equipment, where the CORESET includes the time-frequency resource and the spatial domain resource of the GC-PDCCH.
  • the spatial domain resource of the GC-PDCCH may include directional information of beamforming.
  • the information of the CORESET can be obtained through high layer signaling.
  • the high layer signaling is RRC signaling
  • the CORESET in the RRC signaling includes a GC-TCI for indicating a spatial resource of the GC-PDCCH.
  • One or more GC-TCIs can be included in a CORESET.
  • the high layer signaling is both RRC signaling and MAC signaling
  • the CORESET in the RRC signaling includes a GC-TCI for indicating a spatial resource of the GC-PDCCH
  • the MAC signaling is used for RRC signaling.
  • the GC-TCI in the middle is further selected.
  • the GC-TCI may include information of a reference signal beam that is quasi-co-located with the GC-PDCCH beam.
  • a transmit beam of the base station may be determined based on the above-described airspace resource, and a receive beam paired with the transmit beamforming may be determined to receive a receive beam to be used by the GC-PDCCH.
  • a receive beam for receiving a GC-PDCCH may be determined based on a link quality of a beam pair including a transmit beam of the determined base station.
  • the reception beam in the beam pair having the best link quality may also be determined as the reception beam for receiving the GC-PDCCH.
  • This setting can be used in the case where the base station does not notify the UE of the information of the transmit beam of the GC-PDCCH in advance.
  • the method may further include the step S13: performing blind decoding on the GC-PDCCH in a search space of the time-frequency resource that receives the GC-PDCCH, and determining the GC- using the GC-RNTI. Whether the PDCCH is for the user equipment.
  • the RSRP or BLER of the DMRS of the received GC-PDCCH may also be measured to determine whether the link of the beam pair consisting of the transmit beam and the receive beam fails. Further, when it is determined that the beam pair link has failed, the base station reports.
  • the above method may further include the steps of: acquiring a monitoring period configuration for monitoring the GC-PDCCH from the base station, and performing decoding of the GC-PDCCH based on the monitoring period configuration.
  • the detection period can be greater than 1 time slot.
  • FIG. 12 shows a flow chart of a method for wireless communication according to another embodiment of the present application, the method comprising: determining a paired beam pair formed between a user equipment and a base station (S21), each beam pair comprising a base station a transmit beam and a receive beam of the user equipment; and determining a plurality of transmit beams to be used for transmitting the GC-PDCCH (S22), the GC-PDCCH being transmitted by the beamforming to the plurality of transmit beams and carried for one Control information for groups of user devices.
  • This method is performed, for example, on the base station side or the TRP side.
  • the transmitted GC-PDCCH may have the same content as the GC-PDCCH transmitted by other TRPs in the same cell.
  • a transmit beam to be used for transmission may be determined based on one or more of: information of a beam pair of each of the set of user equipments and the base station; a priority of each user equipment. For example, the priority of the user equipment includes whether the user equipment is scheduled.
  • the above method may further include step S23: configuring a CORESET for the user equipment, where the CORESET includes a time-frequency resource and a spatial domain resource of the GC-PDCCH.
  • the spatial domain resource of the GC-PDCCH includes, for example, directional information of beamforming.
  • the above method may further include the step S24 of providing information of the CORESET to the user equipment.
  • This step S24 can be performed by higher layer signaling.
  • the high layer signaling is RRC signaling
  • the CORESET in the RRC signaling includes a GC-TCI for indicating a spatial resource of the GC-PDCCH.
  • the high layer signaling is both RRC signaling and MAC signaling
  • the CORESET in the RRC signaling includes a GC-TCI for indicating a spatial resource of the GC-PDCCH
  • the MAC signaling is used for RRC signaling.
  • the GC-TCI in the middle is further selected.
  • a CORESET can include one or more GC-TCIs.
  • the GC-TCI includes information of a reference signal beam that is quasi-co-located with the GC-PDCCH beam.
  • the foregoing method may further include the following steps: setting a monitoring period configuration for performing monitoring of the GC-PDCCH for the user equipment, and performing transmission of the GC-PDCCH based on the monitoring period configuration.
  • the monitoring period configuration indicates that the monitoring period is more than one time slot
  • the GC-PDCCHs are respectively transmitted in multiple time slots, and the GC-PDCCHs have the same content.
  • the method may further include the step of acquiring a beam pair link failure indication from the user equipment, the beam pair connection failure indication being obtained by the user equipment by determining an RSRP or a BLER of the received DMRS of the GC-PDCCH.
  • the method for wireless communication enhances the probability of the UE receiving the GC-PDCCH by transmitting the GC-PDCCH with multiple transmit beams by using beamforming, thereby enhancing the GC-PDCCH. use.
  • the technology of the present disclosure can be applied to various products.
  • the base station can be implemented as any type of evolved Node B (eNB) or gNB (5G base station).
  • the eNB includes, for example, a macro eNB and a small eNB.
  • the small eNB may be an eNB covering a cell smaller than the macro cell, such as a pico eNB, a micro eNB, and a home (femto) eNB.
  • a similar situation can also be used for gNB.
  • the base station can be implemented as any other type of base station, such as a NodeB and a base transceiver station (BTS).
  • BTS base transceiver station
  • the base station can include: a body (also referred to as a base station device) configured to control wireless communication; and one or more remote wireless headends (RRHs) disposed at a different location than the body.
  • a body also referred to as a base station device
  • RRHs remote wireless headends
  • various types of user equipment can operate as a base station by performing base station functions temporarily or semi-persistently.
  • the electronic device 100 or 200 can be implemented as various user devices.
  • the user device can be implemented as a mobile terminal (such as a smart phone, a tablet personal computer (PC), a notebook PC, a portable game terminal, a portable/encrypted dog type mobile router and a digital camera device) or an in-vehicle terminal (such as a car navigation device).
  • the user equipment may also be implemented as a terminal (also referred to as a machine type communication (MTC) terminal) that performs machine-to-machine (M2M) communication.
  • MTC machine type communication
  • M2M machine-to-machine
  • the user equipment may be a wireless communication module (such as an integrated circuit module including a single wafer) installed on each of the above terminals.
  • FIG. 13 is a block diagram showing a first example of a schematic configuration of an eNB or a gNB to which the technology of the present disclosure may be applied. Note that the following description takes an eNB as an example, but 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 may be connected to each other via an RF cable.
  • Each of the antennas 810 includes a single or multiple antenna elements, such as multiple antenna elements included in a multiple input multiple output (MIMO) antenna, and is used by the base station apparatus 820 to transmit and receive wireless signals.
  • the eNB 800 can include multiple antennas 810.
  • multiple antennas 810 can be compatible with multiple frequency bands used by eNB 800.
  • FIG. 13 illustrates an example in which the eNB 800 includes multiple antennas 810, the eNB 800 may also include a single antenna 810.
  • the base station device 820 includes a controller 821, a memory 822, a network interface 823, and a wireless communication interface 825.
  • the controller 821 can be, for example, a CPU or a DSP, and operates various functions of higher layers of the base station device 820. For example, controller 821 generates data packets based on data in signals processed by wireless communication interface 825 and communicates the generated packets via network interface 823. Controller 821 can bundle data from multiple baseband processors to generate bundled packets and pass the generated bundled packets. The controller 821 can have logic functions that perform control 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 a RAM and a ROM, and stores programs executed by the controller 821 and various types of control data such as a terminal list, transmission power data, and scheduling data.
  • Network interface 823 is a communication interface for connecting base station device 820 to core network 824. Controller 821 can communicate with a core network node or another eNB via network interface 823. In this case, the eNB 800 and the core network node or other eNBs may be connected to each other through a logical interface such as an S1 interface and an X2 interface. Network interface 823 can also be a wired communication interface or a wireless communication interface for wireless backhaul lines. If network interface 823 is a wireless communication interface, network interface 823 can use a higher frequency band for wireless communication than the frequency band used by wireless communication interface 825.
  • the wireless communication interface 825 supports any cellular communication scheme, such as Long Term Evolution (LTE) and LTE-Advanced, and provides a wireless connection to terminals located in cells of the eNB 800 via the antenna 810.
  • Wireless communication interface 825 may typically include, 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 layers (eg, L1, Medium Access Control (MAC), Radio Link Control (RLC), and Packet Data Convergence Protocol (PDCP)) Various types of signal processing.
  • BB processor 826 may have some or all of the above described logic functions.
  • the BB processor 826 can be a memory that stores a communication control program, or a module that includes a processor and associated circuitry configured to execute the program.
  • the update program can cause the function of the BB processor 826 to change.
  • the module can be a card or blade that is inserted into a slot of the base station device 820. Alternatively, the module can also be a chip mounted on a card or blade.
  • the RF circuit 827 may include, for example, a mixer, a filter, and an amplifier, and transmits and receives a wireless signal via the antenna 810.
  • the wireless communication interface 825 can include a plurality of BB processors 826.
  • multiple BB processors 826 can be compatible with multiple frequency bands used by eNB 800.
  • the wireless communication interface 825 can include a plurality of RF circuits 827.
  • multiple RF circuits 827 can be compatible with multiple antenna elements.
  • FIG. 13 illustrates an example in which the wireless communication interface 825 includes a plurality of BB processors 826 and a plurality of RF circuits 827, the wireless communication interface 825 may also include a single BB processor 826 or a single RF circuit 827.
  • the transceiver of the electronic device 300 can be implemented by the wireless communication interface 825. At least a portion of the functionality can also be implemented by controller 821.
  • the controller 821 can perform the determination of the plurality of transmit beams to be used for the transmission of the GC-PDCCH by performing the functions of the first determining unit 301 and the second determining unit 302, and configure the CORESET by performing the function of the configuration unit 303, Information to inform the UE about the airspace resources of the transmit beam.
  • 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 may be connected to each other via an RF cable.
  • the base station device 850 and the RRH 860 can be connected to each other via a high speed line such as a fiber optic cable.
  • Each of the antennas 840 includes a single or multiple 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.
  • eNB 830 can include multiple antennas 840.
  • multiple antennas 840 may be compatible with multiple frequency bands used by eNB 830.
  • FIG. 14 illustrates an example in which the eNB 830 includes multiple antennas 840, the eNB 830 may also include a single antenna 840.
  • the base station device 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, the memory 852, and the network interface 853 are the same as the controller 821, the memory 822, and the network interface 823 described with reference to FIG.
  • the wireless communication interface 855 supports any cellular communication scheme (such as LTE and LTE-Advanced) and provides wireless communication to terminals located in sectors corresponding to the RRH 860 via the RRH 860 and the antenna 840.
  • Wireless communication interface 855 can generally include, for example, BB processor 856.
  • the BB processor 856 is identical to the BB processor 826 described with reference to FIG. 13 except that the BB processor 856 is connected to the RF circuit 864 of the RRH 860 via the connection interface 857.
  • the wireless communication interface 855 can include a plurality of BB processors 856.
  • multiple BB processors 856 can be compatible with multiple frequency bands used by eNB 830.
  • FIG. 14 illustrates an example in which the wireless communication interface 855 includes a plurality of BB processors 856, the wireless communication interface 855 can also include a single BB processor 856.
  • connection interface 857 is an interface for connecting the base station device 850 (wireless communication interface 855) to the RRH 860.
  • the connection interface 857 may also be a communication module for communicating the base station device 850 (wireless communication interface 855) to the above-described high speed line of the RRH 860.
  • the RRH 860 includes a connection interface 861 and a wireless communication interface 863.
  • connection interface 861 is an interface for connecting the RRH 860 (wireless communication interface 863) to the base station device 850.
  • the connection interface 861 can also be a communication module for communication in the above high speed line.
  • the wireless communication interface 863 transmits and receives wireless signals via the antenna 840.
  • Wireless communication interface 863 can typically include, for example, RF circuitry 864.
  • the RF circuit 864 can include, for example, a mixer, a filter, and an amplifier, and transmits and receives wireless signals via the antenna 840.
  • the wireless communication interface 863 can include a plurality of RF circuits 864.
  • multiple RF circuits 864 can support multiple antenna elements.
  • FIG. 14 illustrates an example in which the wireless communication interface 863 includes a plurality of RF circuits 864, the wireless communication interface 863 may also include a single RF circuit 864.
  • the transceiver of the electronic device 300 can be implemented by the wireless communication interface 825. At least a portion of the functionality can also be implemented by controller 821.
  • the controller 821 can perform the determination of the plurality of transmit beams to be used for the transmission of the GC-PDCCH by performing the functions of the first determining unit 301 and the second determining unit 302, and configure the CORESET by performing the function of the configuration unit 303, Information to inform the UE about the airspace resources of the transmit beam.
  • FIG. 15 is a block diagram showing an example of a schematic configuration of a smartphone 900 to which the technology of the present disclosure can be applied.
  • the smart phone 900 includes a processor 901, a memory 902, a storage device 903, an external connection interface 904, an imaging 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 An antenna switch 915, one or more antennas 916, a bus 917, a battery 918, and an auxiliary controller 919.
  • the processor 901 can be, for example, a CPU or a system on chip (SoC), and controls the functions of the application layer and the other layers of the smart phone 900.
  • the memory 902 includes a RAM and a ROM, and stores data and programs executed by the processor 901.
  • the storage device 903 may include a storage medium such as a semiconductor memory and a hard disk.
  • the external connection interface 904 is an interface for connecting an external device such as a memory card and a universal serial bus (USB) device to the smartphone 900.
  • USB universal serial bus
  • the camera 906 includes an image sensor such as a charge coupled device (CCD) and a complementary metal oxide semiconductor (CMOS), and generates a captured image.
  • Sensor 907 can include a set of sensors, such as measurement sensors, gyro sensors, geomagnetic sensors, and acceleration sensors.
  • the microphone 908 converts the sound input to the smartphone 900 into an audio signal.
  • the input device 909 includes, for example, a touch sensor, a keypad, a keyboard, a button, or a switch configured to detect a touch on the screen of the display device 910, and receives an operation or information input from a user.
  • the display device 910 includes screens such as a liquid crystal display (LCD) and an organic light emitting diode (OLED) display, and displays an output image of the smartphone 900.
  • the speaker 911 converts the audio signal output from the smartphone 900 into sound.
  • the wireless communication interface 912 supports any cellular communication scheme (such as LTE and LTE-Advanced) and performs wireless communication.
  • Wireless communication interface 912 may generally include, for example, 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.
  • RF circuitry 914 may include, for example, mixers, filters, and amplifiers, and transmit and receive wireless signals via antenna 916.
  • the wireless communication interface 912 can be a chip module on which the BB processor 913 and the RF circuit 914 are integrated. As shown in FIG. 15, the wireless communication interface 912 can include a plurality of BB processors 913 and a plurality of RF circuits 914.
  • the wireless communication interface 912 includes a plurality of BB processors 913 and a plurality of RF circuits 914
  • the wireless communication interface 912 may also include a single BB processor 913 or a single RF circuit 914.
  • wireless communication interface 912 can support additional types of wireless communication schemes, such as short-range wireless communication schemes, near field communication schemes, and wireless local area network (LAN) schemes.
  • the wireless communication interface 912 can include a BB processor 913 and RF circuitry 914 for each wireless communication scheme.
  • Each of the antenna switches 915 switches the connection destination of the antenna 916 between a plurality of circuits included in the wireless communication interface 912, such as circuits for different wireless communication schemes.
  • Each of the antennas 916 includes a single or multiple 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.
  • smart phone 900 can include multiple antennas 916.
  • FIG. 15 illustrates an example in which the smartphone 900 includes a plurality of antennas 916, the smartphone 900 may also include a single antenna 916.
  • smart phone 900 can include an antenna 916 for each wireless communication scheme.
  • the antenna switch 915 can be omitted from the configuration of the smartphone 900.
  • the bus 917 sets the processor 901, the memory 902, the storage device 903, the external connection interface 904, the camera 906, the sensor 907, the microphone 908, the input device 909, the display device 910, the speaker 911, the wireless communication interface 912, and the auxiliary controller 919 to each other. connection.
  • Battery 918 provides power to various blocks of smart phone 900 shown in FIG. 15 via a feeder, which is partially shown as a dashed line in the figure.
  • the auxiliary controller 919 operates the minimum necessary function of the smartphone 900, for example, in a sleep mode.
  • the transceiver of the electronic device 100 or 200 can be implemented by the wireless communication interface 912. At least a portion of the functionality can also be implemented by processor 901 or auxiliary controller 919.
  • the processor 901 or the auxiliary controller 919 can determine the reception beam to be used for receiving the GC-PDCCH by performing the functions of the first determining unit 101 and the second determining unit 102, and implement the GC by performing the function of the detecting unit 201. Blind decoding of PDCCH and/or beam pair link failure detection.
  • FIG. 16 is a block diagram showing an example of a schematic configuration of a car navigation device 920 to which the technology of the present 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, and a wireless device.
  • the processor 921 can be, for example, a CPU or SoC and controls the navigation functions and additional functions of the car navigation device 920.
  • the memory 922 includes a RAM and a ROM, and stores data and programs executed by the processor 921.
  • the GPS module 924 measures the position of the car navigation device 920 (such as latitude, longitude, and altitude) using GPS signals received from GPS satellites.
  • Sensor 925 can include a set of sensors, such as a gyro sensor, a geomagnetic sensor, and an air pressure sensor.
  • the data interface 926 is connected to, for example, the in-vehicle network 941 via a terminal not shown, and acquires data (such as vehicle speed data) generated by the vehicle.
  • the content player 927 reproduces content stored in a storage medium such as a CD and a DVD, which is inserted into the storage medium interface 928.
  • the input device 929 includes, for example, a touch sensor, a button or a switch configured to detect a touch on the screen of the display device 930, and receives an operation or information input from a user.
  • the display device 930 includes a screen such as an LCD or OLED display, and displays an image of the navigation function or reproduced content.
  • the speaker 931 outputs the sound of the navigation function or the reproduced content.
  • the wireless communication interface 933 supports any cellular communication scheme (such as LTE and LTE-Advanced) and performs wireless communication.
  • Wireless communication interface 933 may typically include, for example, 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.
  • the RF circuit 935 may include, for example, a mixer, a filter, and an amplifier, and transmits and receives a wireless signal via the antenna 937.
  • the wireless communication interface 933 can also be a chip module on which the BB processor 934 and the RF circuit 935 are integrated. As shown in FIG.
  • the wireless communication interface 933 may include a plurality of BB processors 934 and a plurality of RF circuits 935.
  • FIG. 16 shows an example in which the wireless communication interface 933 includes a plurality of BB processors 934 and a plurality of RF circuits 935, the wireless communication interface 933 may also include a single BB processor 934 or a single RF circuit 935.
  • the wireless communication interface 933 can support another type of wireless communication scheme, such as a short-range wireless communication scheme, a near-field communication scheme, and a wireless LAN scheme.
  • the wireless communication interface 933 may include a BB processor 934 and an RF circuit 935 for each wireless communication scheme.
  • Each of the antenna switches 936 switches the connection destination of the antenna 937 between a plurality of circuits included in the wireless communication interface 933, such as circuits for different wireless communication schemes.
  • Each of the antennas 937 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 933 to transmit and receive wireless signals.
  • car navigation device 920 can include a plurality of antennas 937.
  • FIG. 16 shows an example in which the car navigation device 920 includes a plurality of antennas 937, the car navigation device 920 may also include a single antenna 937.
  • car navigation device 920 can include an antenna 937 for each wireless communication scheme.
  • the antenna switch 936 can be omitted from the configuration of the car navigation device 920.
  • Battery 938 provides power to various blocks of car navigation device 920 shown in Figure 16 via feeders, which are partially shown as dashed lines in the figure. Battery 938 accumulates power supplied from the vehicle.
  • the transceiver of the electronic device 100 or 200 can be implemented by the wireless communication interface 912. At least a portion of the functionality can also be implemented by processor 901 or auxiliary controller 919.
  • the processor 901 or the auxiliary controller 919 can determine the reception beam to be used for receiving the GC-PDCCH by performing the functions of the first determining unit 101 and the second determining unit 102, and implement the GC by performing the function of the detecting unit 201. Blind decoding of PDCCH and/or beam pair link failure detection.
  • the technology of the present disclosure may also be implemented as an onboard system (or vehicle) 940 that includes one or more of the car navigation device 920, the in-vehicle network 941, and the vehicle module 942.
  • 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.
  • the present invention also proposes a program product for storing an instruction code readable by a machine.
  • the instruction code is read and executed by a machine, the above-described method according to an embodiment of the present invention can be performed.
  • a storage medium for carrying a program product storing the above-described storage machine readable instruction code 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 the like.
  • a program constituting the software is installed from a storage medium or a network to a computer having a dedicated hardware structure (for example, the general-purpose computer 1700 shown in FIG. 17), which is installed with various programs. At the time, it is possible to perform various functions and the like.
  • a central processing unit (CPU) 1701 executes various processes in accordance with a program stored in a read only memory (ROM) 1702 or a program loaded from a storage portion 1708 to a random access memory (RAM) 1703.
  • ROM read only memory
  • RAM random access memory
  • data required when the CPU 1701 executes various processes and the like is also stored as needed.
  • the CPU 1701, the ROM 1702, and the RAM 1703 are connected to each other via a bus 1704.
  • Input/output interface 1705 is also coupled to bus 1704.
  • the following components are connected to the input/output interface 1705: an input portion 1706 (including a keyboard, a mouse, etc.), an output portion 1707 (including a display such as a cathode ray tube (CRT), a liquid crystal display (LCD), etc., and a speaker, etc.),
  • the storage portion 1708 (including a hard disk or the like), the communication portion 1709 (including a network interface card such as a LAN card, a modem, etc.).
  • the communication section 1709 performs communication processing via a network such as the Internet.
  • the driver 1710 can also be connected to the input/output interface 1705 as needed.
  • a removable medium 1711 such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory or the like is mounted on the drive 1710 as needed, so that the computer program read therefrom is installed into the storage portion 1708 as needed.
  • a program constituting the software is installed from a network such as the Internet or a storage medium such as the removable medium 1711.
  • such a storage medium is not limited to the removable medium 1711 shown in FIG. 17 in which a program is stored and distributed separately from the device to provide a program to the user.
  • the removable medium 1711 include a magnetic disk (including a floppy disk (registered trademark)), an optical disk (including a compact disk read only memory (CD-ROM) and a digital versatile disk (DVD)), and a magneto-optical disk (including a mini disk (MD) (registered) Trademark)) and semiconductor memory.
  • the storage medium may be a ROM 1702, a hard disk included in the storage portion 1708, or the like, in which programs are stored, and distributed to the user together with the device containing them.

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Abstract

本公开提供了一种用于无线通信的电子设备、方法和计算机可读存储介质，该电子设备包括：处理电路，被配置为：确定用户设备与基站之间形成配对的波束对，每一个波束对包括基站的一个发射波束和用户设备的一个接收波束；以及确定对来自基站的组共享物理下行控制信道进行接收要使用的一个或多个接收波束，该组共享物理下行控制信道承载针对一组用户设备的控制信息并且由基站进行波束赋形后以多个发射波束发送。

Description

用于无线通信的电子设备和方法、计算机可读存储介质
本申请要求于2018年4月23日提交中国专利局、申请号为201810367720.X、发明名称为“用于无线通信的电子设备和方法、计算机可读存储介质”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
本申请涉及无线通信技术领域，具体地涉及无线通信系统中下行控制信道的配置。更具体地，涉及一种用于无线通信的电子设备和方法以及计算机可读存储介质。
背景技术
新无线电(New Radio，NR)作为针对长期演进(Long Term Evolution，LTE)的下一代的无线接入方式，是与LTE不同的无线接入技术(Radio Access Technology，RAT)。NR是能够应对包括增强移动宽带(Enhanced mobile broadband，eMBB)、大规模机器类型通信(Massive machine type communications，mMTC)以及超可靠和低延迟通信(Ultra reliable and low latency communications，URLLC)的各种用例(use case)的接入技术。
在目前指定的NR(也称为5G)标准中，为了使得一些用户设备(User Equipment，UE)能够接收一些共同的信息，定义了组共享下行控制信道(Group Common Physical Downlink Control Channel，GC-PDCCH)，用于承载对于一组UE而言至关重要的信息，比如时隙格式指示(Slot Format Indicator，SFI)，其为UE指示一个时隙的上行正交频分复用(Orthogonal Frequency Division Multiplexing，OFDM)符号和下行OFDM符号所在的位置。
GC-PDCCH中的内容被一组UE所共享，其在下行信道所占用的时隙位置也在控制区域内。并且，即使UE无法解码得到GC-PDCCH中的内容，也不影响UE完成后续的过程。
发明内容
在下文中给出了关于本发明的简要概述，以便提供关于本发明的某些方面的基本理解。应当理解，这个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。
根据本申请的一个方面，提供了一种用于无线通信的电子设备，包括：处理电路，被配置为：确定用户设备与基站之间形成配对的波束对，每一个波束对包括基站的一个发射波束和用户设备的一个接收波束；以及确定对来自基站的组共享物理下行控制信道进行接收要使用的一个或多个接收波束，该组共享物理下行控制信道承载针对一组用户设备的控制信息并且由基站进行波束赋形后以多个发射波束发送。
根据本申请的一个方面，提供了一种用于无线通信的方法，包括：确定用户设备与基站之间形成配对的波束对，每一个波束对包括基站的一个发射波束和用户设备的一个接收波束；以及确定对来自基站的组共享物理下行控制信道进行接收要使用的一个或多个接收波束，该组共享物理下行控制信道承载针对一组用户设备的控制信息并且由基站进行波束赋形后以多个发射波束发送。
根据本申请的另一个方面，提供了一种用于无线通信的电子设备，包括：处理电路，被配置为：确定用户设备与基站之间形成配对的波束对，每一个波束对包括基站的一个发射波束和用户设备的一个接收波束；以及确定发送组共享物理下行控制信道要使用的多个发射波束，所述组共享物理下行控制信道通过波束赋形以所述多个发射波束发送，并且承载针对一组用户设备的控制信息。
根据本申请的另一个方面，提供了一种用于无线通信的方法，包括：确定用户设备与基站之间形成配对的波束对，每一个波束对包括基站的一个发射波束和用户设备的一个接收波束；以及确定发送组共享物理下行控制信道要使用的多个发射波束，所述组共享物理下行控制信道通过波束赋形以所述多个发射波束发送，并且承载针对一组用户设备的控制信息。
依据本发明的其它方面，还提供了用于实现上述用于无线通信的方法的计算机程序代码和计算机程序产品以及其上记录有该用于实现上述用于无线通信的方法的计算机程序代码的计算机可读存储介质。
根据本申请的电子设备和方法通过以波束赋形的方式用多个发射波束发射GC-PDCCH，实现了GC-PDCCH在空间上的波束扫描，从而增加了GC-PDCCH的覆盖范围，使得更多UE能够接收到该GC-PDCCH并获取其中的内容。
通过以下结合附图对本发明的优选实施例的详细说明，本发明的这些以及其他优点将更加明显。
附图说明
为了进一步阐述本发明的以上和其它优点和特征，下面结合附图对本发明的具体实施方式作进一步详细的说明。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。具有相同的功能和结构的元件用相同的参考标号表示。应当理解，这些附图仅描述本发明的典型示例，而不应看作是对本发明的范围的限定。在附图中：
图1是示出了根据本申请的一个实施例的用于无线通信的电子设备的功能模块框图；
图2示出了发射端天线阵列生成发射波束的一个示意图；
图3示出了GC-PDCCH以多个发射波束进行发送的示意图；
图4示出了GC-PDCCH的监测周期为k个时隙的情况下，GC-PDCCH以多个发射波束进行发送的示意图；
图5示出了两个TRP服务于一个小区的情况下以不同的发射波束发送GC-PDCCH的示意图；
图6是示出了根据本申请的另一个实施例的用于无线通信的电子设备的功能模块框图；
图7是示出了根据本申请的另一个实施例的用于无线通信的电子设备的功能模块框图；
图8是示出了根据本申请的另一个实施例的用于无线通信的电子设 备的功能模块框图；
图9是示出了基站与用户设备之间的多波束GC-PDCCH的收发的信息流程的示意图；
图10示出了基站与用户设备之间的基于GC-PDCCH的波束对链接失败检测的信息流程的示意图；
图11示出了根据本申请的一个实施例的用于无线通信的方法的流程图；
图12示出了根据本申请的另一个实施例的用于无线通信的方法的流程图；
图13是示出可以应用本公开内容的技术的eNB或gNB的示意性配置的第一示例的框图；
图14是示出可以应用本公开内容的技术的eNB或gNB的示意性配置的第二示例的框图；
图15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16是示出可以应用本公开内容的技术的汽车导航设备的示意性配置的示例的框图；以及
图17是其中可以实现根据本发明的实施例的方法和/或装置和/或系统的通用个人计算机的示例性结构的框图。
具体实施方式
在下文中将结合附图对本发明的示范性实施例进行描述。为了清楚和简明起见，在说明书中并未描述实际实施方式的所有特征。然而，应该了解，在开发任何这种实际实施例的过程中必须做出很多特定于实施方式的决定，以便实现开发人员的具体目标，例如，符合与系统及业务相关的那些限制条件，并且这些限制条件可能会随着实施方式的不同而有所改变。此外，还应该了解，虽然开发工作有可能是非常复杂和费时的，但对得益于本公开内容的本领域技术人员来说，这种开发工作仅仅是例行的任务。
在此，还需要说明的一点是，为了避免因不必要的细节而模糊了本发明，在附图中仅仅示出了与根据本发明的方案密切相关的设备结构和/或处理步骤，而省略了与本发明关系不大的其他细节。
<第一实施例>
如前所述，GC-PDCCH为一组UE所共享，其内容例如可以用于指导UE的下一步的行为。比如，对于被调度的UE而言，该内容可以用于准备PDCCH或物理下行共享信道(Physical Downlink Shared Channel，PDSCH)的解码，上下行之间的转换，混合自动重传请求(Hybrid Automatic Repeat reQuest，HARQ)的ACK/NACK反馈，等等。对于非调度UE而言，该内容可以用于信道状态信息(Channel State Information，CSI)上报等行为。此外，UE专属的PDCCH的控制资源集合(Control resource set，CORESET)配置信息也可以通过GC-PDCCH进行调整。
因此，期望更多的UE能够接收到GC-PDCCH并对其中的内容进行成功解码。
图1示出了根据本申请的一个实施例的用于无线通信的电子设备100的功能模块框图，如图1所示，电子设备100包括：第一确定单元101，被配置为确定用户设备与基站之间形成配对的波束对，每一个波束对包括基站的一个发射波束和用户设备的一个接收波束；以及第二确定单元102，被配置确定对来自基站的组共享物理下行控制信道进行接收要使用的一个或多个接收波束，该组共享物理下行控制信道承载针对一组用户设备的控制信息并且由基站进行波束赋形后以多个发射波束发送。
其中，第一确定单元101和第二确定单元102可以由一个或多个处理电路实现，该处理电路例如可以实现为芯片。并且，应该理解，图1中所示的装置中的各个功能单元仅是根据其所实现的具体功能而划分的逻辑模块，而不是用于限制具体的实现方式。这同样适用于随后要描述的其他电子设备的示例。
电子设备100例如可以设置在用户设备(UE)侧或者可通信地连接到UE。这里，还应指出，电子设备100可以以芯片级来实现，或者也可以以设备级来实现。例如，电子设备100可以工作为用户设备本身，并 且还可以包括诸如存储器、收发器(图中未示出)等外部设备。存储器可以用于存储用户设备实现各种功能需要执行的程序和相关数据信息。收发器可以包括一个或多个通信接口以支持与不同设备(例如，基站、其他用户设备等等)间的通信，这里不具体限制收发器的实现形式。这同样适用于随后关于用户设备侧的电子设备的其他配置示例的描述。
在本实施例中，第一确定单元101用于执行基站与用户设备间的波束训练，以确定与基站的各个发射波束配对的接收波束，其中，基站的一个发射波束和用户设备的与其配对的一个接收波束构成一个波束对。不同方向的发射波束和接收波束分别对应于空间滤波器的一组特定参数，该空间滤波器应用于发射天线阵列以发射预定方向的发射波束，或应用于接收天线阵列以接收预定方向的接收波束。图2示出了发射端天线阵列生成发射波束的一个示意图，其中，Mg和Ng分别表示在垂直方向和水平方向上的子天线面板的个数，每个子面板上天线阵列的规模为M×N，P代表天线的极化特性，例如，P＝1代表单极化天线，P＝2代表双极化天线，图2中所示的示例中的天线为双极化天线。
此外，第一确定单元101还可以通过测量信道质量来获得各个波束对链接的质量。具体地，第一确定单元101可以测量参考信号接收功率或误块率。接着，UE将第一确定单元101所确定的波束对的信息发送给基站。如前所述，UE可以通过收发器将波束对的信息发送给基站。
在一个示例中，在UE初始接入时，基站通过发送下行的同步信号块(Synchronization Signal Block，SSB)来进行波束扫描。第一确定单元101测量该SSB，从而获得基站在下行链路上较适合本UE的发射波束方向(可以有一个或多个)，并记录与发射波束配对的接收波束，从而构成一个或多个波束对。例如，UE可以通过物理随机接入信道(Physical Random Access Channel，PRACH)来向基站上报适合本UE的基站的发射波束。示例性地，UE可以向基站发送SSB资源指示符(SSB Resource Indicator，SSBRI)来作为波束标识符上报适合本UE的发射波束。
在另一个示例中，UE接入网络并处于无线资源控制(Radio Resource Control，RRC)连接状态后，基站为UE配置专属的信道状态信息参考信号(Channel State Information-Reference Signal，CSI-RS)资源以进行更为精细的波束扫描。第一确定单元101类似地测量该CSI-RS，从而获得基站在下行链路上较适合本UE的发射波束方向，并记录与发射波 束配对的接收波束，从而构成一个或多个波束对。例如，UE可以通过物理上行控制信道(Physical Uplink Control Channel，PUCCH)来向基站上报适合本UE的基站的发射波束。示例性地，UE可以向基站发送CSI-RS资源指示符(CSI-RS Resource Indicator，CRI)来作为波束标识符上报适合本UE的发射波束。例如，如果UE向基站上报CRI1、CRI3，则表示与CRI1和CRI3对应的发射波束1和3适合于本UE。
此外，第一确定单元101还可以通过测量CSI-RS的参考信号接收功率(Reference Signal Receiving Power，RSRP)或参考信号接收质量(Reference Signal Receiving Quality，RSRQ)等来测量波束对链接的质量。
为了能够在适当的方向上对GC-PDCCH进行接收，第二确定单元102需要确定使用哪一个接收波束(在UE的能力允许的情况下，确定使用哪几个接收波束)进行接收。其中，该GC-PDCCH承载针对一组用户设备的控制信息，并且通过基站进行波束赋形而在特定的多个方向上发射，即，以特定的多个发射波束发送。由于GC-PDCCH在多个方向上进行发射，相当于进行了部分波束扫描，因此提高了该GC-PDCCH被更多UE接收到的概率。
在一个示例中，第二确定单元102可以将链接质量最优的波束对中的接收波束确定为接收GC-PDCCH的接收波束。在这种情况下，UE并不知道基站将使用哪些发射波束来发送GC-PDCCH，因此可以基于特定的策略来选择接收波束。例如，除了选择链接质量最优的波束对中的接收波束之外，第二确定单元102还可以根据历史经验选择与基站针对本UE最常使用的发射波束匹配的接收波束作为接收GC-PDCCH的接收波束。
在另一个示例中，第二确定单元102被配置为基于基站为用户设备配置的CORESET来确定接收GC-PDCCH要使用的接收波束，其中，CORESET包括GC-PDCCH的时频资源和空域资源。该CORESET用于通知UE应该在哪些时频资源和空域资源上接收该GC-PDCCH。在这种情况下，基站预先通知UE该GC-PDCCH的位置，包括时频位置和空间位置。
第二确定单元102可以基于上述空域资源确定基站的发射波束，并 且使用与该发射波束形成配对的接收波束来进行GC-PDCCH的接收。例如，在存在与多个发射波束形成配对的多个接收波束的情况下、即存在多个包括发射波束的波束对的情况下，第二确定单元102可以基于这些波束对的链接质量来选择用于接收GC-PDCCH的接收波束。优选地，可以选择链接质量最优的波束对中的接收波束。
例如，GC-PDCCH的空域资源包括波束赋形的方向性信息。第二确定单元102可以通过该方向性信息确定基站所发出的发射波束，从而将与发射波束配对的接收波束确定为接收GC-PDCCH的接收波束。
示例性地，第二确定单元102还被配置为通过高层信令来获取CORESET的信息。高层信令例如为无线资源控制(Radio Resource Control，RRC)信令，该RRC信令中的CORESET包括组共享传输配置指示(Group common transmission configuration indicator，GC-TCI)，用于表示GC-PDCCH的空域资源。
或者，高层信令还可以为RRC信令与介质访问控制(Media Access Control，MAC)信令两者，其中，RRC信令中的CORESET包括GC-TCI，用于表示GC-PDCCH的空域资源，MAC信令用于对RRC信令中的GC-TCI进行进一步选择。例如，RRC信令中配置了较多的TCI状态，比如M个TCI状态，MAC信令用于选择这M个状态中的K个状态来供UE接收GC-PDCCH时作为参考。
例如，GC-TCI可以包括与GC-PDCCH准共址的参考信号波束的信息。具体地，每个TCI状态包含一个TCI状态的ID、准共址(Quasi Co-Location，QCL)类型1和QCL类型2。在QCL类型1或类型2中，包含QCL信息，其中QCL信息的参考信号为CSI-RS、SSB或者(Tracking Reference Signal，TRS)，QCL类型为Type A/B/C/D，其中Type D和空间滤波器、即接收波束相关。例如，TCI状态包括：[SSB1|QCL Type4,SSB3|QCL Type4,CSI-RS Resource 5|QCL Type4,TRS 7|QCL Type4]，其中QCL Type4指的是空间准共址的特性。此外，这些TCI状态以一种基站和UE都已知的方式比如对应于GC-PDCCH的解调参考信号(Demodulation Reference Signal，DMRS)。因此，当UE由基站配置了GC-TCI状态后，UE可以获知在哪些时频资源上使用何种接收波束来检测GC-PDCCH。
当由RRC信令配置CORESET时，例如，基站可以为UE配置参数tci-StatesGCPDCCH，其中包含多个TCI状态的ID，以使得UE依次参考TCI状态中的参考信号来接收GC-PDCCH的内容。tci-StatesGCPDCCH是TCI状态的子集，用于提供一个下行参考信号的集合中参考信号与GC-PDCCH的DMRS端口之间的QCL关系。
应该注意，不同于UE专属PDCCH的CORESET中TCI状态的配置，对于GC-PDCCH的TCI状态配置是针对多个UE来进行的，所以对于其中某一个UE而言，可能没有合适的接收波束来接收所有的CORESET。因此，在CORESET的配置中，GC-PDCCH的TCI状态与UE专属PDCCH的TCI状态需要单独配置。
如上所述，一个CORESET中可以包括多个GC-TCI。但是，也可以设置为每一个CORESET中仅包括一个GC-TCI，而配置多个CORESET来实现多个GC-PDCCH波束的发射。
注意，UE还需要获知参考每个GC-TCI状态的具体时间，比如在哪个OFDM符号上要参考哪个GC-TCI状态，从而作出接收波束的调整。此外，由于基站天线的射频部分对于波束赋形的限制，多个GC-PDCCH可能需要分别在不同的OFDM符号中发送。
为了便于理解，图3示出了GC-PDCCH以多个发射波束进行发送的示意图。可以看出，在一个时隙中，在不同的OFDM符号中以不同的方向来发送发射波束，并且每一个发射波束的GC-PDCCH具有相同的内容，从而可以提高UE接收到GC-PDCCH的可能性，以及增加接收到GC-PDCCH的UE的数量。
此外，第二确定单元102还被配置为从基站获取进行GC-PDCCH的监测的监测周期配置，并基于该监测周期配置执行GC-PDCCH的解码。
对于GC-PDCCH而言，其内容可以每个时隙动态变化，从而基站每一个时隙动态配置SFI。但是，GC-PDCCH的内容也可以持续几个(比如，k个，k为大于1的整数)时隙不变，从而UE对于GC-PDCCH的监测周期也变为k个时隙。在这种情况下，基站可以在k个时隙上发送相同内容的GC-PDCCH，即，发送GC-PDCCH的时频资源增多。相应地，可以发送基于更多波束的GC-PDCCH，从而进一步增加GC-PDCCH 的覆盖范围。
图4示出了GC-PDCCH的监测周期为k个时隙的情况下，GC-PDCCH以多个发射波束进行发送的示意图。如图4所示，在监测周期为一个时隙的情形下，仅使用发射波束A、B、C和D来发送GC-PDCCH；而当监测周期为2个时隙时，可以使用额外的发射波束E、F和G来发送GC-PDCCH；甚至直到最后一个时隙，基站还可以使用额外的发射波束H、I来发送GC-PDCCH。发送GC-PDCCH的发射波束的数量随着监测周期的增大而增多。
另一方面，期望尽早地将GC-PDCCH的内容解码出来，因此在实际应用中，可以不在k个时隙的靠后的一部分时隙中发送GC-PDCCH。
此外，在多个收发点(Transmit Receive Point，TRP)服务于一个物理小区、即共享一个小区ID的情况下，GC-PDCCH可以分别由多个收发点进行波束赋形后以多个波束发送。换言之，多个TRP通过各自的发射波束来向UE发送相同内容的GC-PDCCH。其中，每个TRP可以单独配置各自的CORESET，也可以由多个TRP中的一个或几个来配置所有TRP的CORESET。作为示例，图5示出了两个TRP服务于一个小区的情况下以不同的发射波束发送GC-PDCCH的示意图。可以看出，TRP1和TRP2分别使用不同的发射波束在不同的时频资源上发送GC-PDCCH。
综上所述，根据本实施例的电子设备100通过接收基站通过波束赋形以多个发射波束发送的GC-PDCCH，提高了接收到GC-PDCCH的概率，从而加强了对GC-PDCCH的利用。
<第二实施例>
图6示出了根据本申请的另一个实施例的电子设备100的功能模块框图。如图6所示，除了参照图1所述的第一确定单元101和第二确定单元102之外，电子设备100还包括：检测单元103，被配置为在接收到GC-PDCCH的时频资源的搜索空间内对GC-PDCCH进行盲解码，并且使用组共享无线网络临时标识(Group Common Radio Network Temporary Identity，GC-RNTI)来判断该GC-PDCCH是否是用于本UE的。其中，基站提前通过高层信令将GC-RNTI配置给电子设备100， 以便于之后的判断，基站可以为多个不同的UE配置相同的GC-RNTI以使得GC-PDCCH可以适用于一组UE。
类似地，检测单元103可以由一个或多个处理电路实现，该处理电路例如可以实现为芯片。并且，图6中所示的装置中的各个功能单元仅是根据其所实现的具体功能而划分的逻辑模块，而不是用于限制具体的实现方式。
例如，检测单元103在接收到GC-PDCCH的时频资源的搜索空间内对GC-PDCCH的内容进行循环冗余校验(Cyclical Redundancy Check，CRC)检查，如果能够通过CRC检查，则说明该GC-PDCCH是针对本UE的(即本UE是GC-PDCCH所针对的一组UE中的UE，为被调度UE)，否则说明该GC-PDCCH不是针对本UE的(即本UE不是该组UE中的UE，为非调度UE)。
在本实施例中，可替选地/附加地，检测单元103还可以用于测量接收的GC-PDCCH的参考信号(比如DMRS)的RSRP或误块率(Block Error Rate，BLER)，以判断由相应的发射波束和接收波束组成的波束对的链接是否失败。例如，当RSRP小于预定阈值或者BLER高于预定水平时，检测单元103认为发生了波束对链接失败。由于GC-PDCCH在时间上出现较早，一般位于控制区域的第一个OFDM符号，因此通过检测单元103的该操作可以使得UE较早地发现波束对链接失败。并且，对于非调度UE，GC-PDCCH同样可以用于进行波束对链接失败检测。
通过检测单元103的操作，在发生波束对链接失败的情况下，UE可以将波束对链接失败的消息及时地通知基站，以使得基站执行相应的操作，比如调整针对该UE的发射波束等。
<第三实施例>
图7示出了根据本申请的另一个实施例的电子设备300的功能模块框图，如图7所示，电子设备300包括：第一确定单元301，被配置为确定用户设备与基站之间形成配对的波束对，每一个波束对包括基站的一个发射波束和用户设备的一个接收波束；以及第二确定单元302，被配置为确定发送组共享物理下行控制信道要使用的多个发射波束，所述组共享物理下行控制信道通过波束赋形以所述多个发射波束发送并且承载针 对一组用户设备的控制信息。
其中，第一确定单元301和第二确定单元302可以由一个或多个处理电路实现，该处理电路例如可以实现为芯片。并且，应该理解，图7中所示的装置中的各个功能单元仅是根据其所实现的具体功能而划分的逻辑模块，而不是用于限制具体的实现方式。这同样适用于随后要描述的其他电子设备的示例。
电子设备700例如可以设置在基站侧或者可通信地连接到基站。这里，还应指出，电子设备700可以以芯片级来实现，或者也可以以设备级来实现。例如，电子设备700可以工作为基站本身，并且还可以包括诸如存储器、收发器(未示出)等外部设备。存储器可以用于存储基站实现各种功能需要执行的程序和相关数据信息。收发器可以包括一个或多个通信接口以支持与不同设备(例如，用户设备、其他基站等等)间的通信，这里不具体限制收发器的实现形式。这同样适用于随后关于基站侧的电子设备其他配置示例的描述。
如第一实施例中所述，第一确定单元301作为基站侧的功能模块与用户设备共同进行波束训练。具体地，可以通过SSB波束扫描或者CSI-RS波束扫描来实现，有关细节在第一实施例中已经给出了详细描述，在此不再重复。
GC-PDCCH是用于一组UE的PDCCH，而如何对UE进行分组则可以取决于GC-PDCCH中承载的内容。例如，GC-PDCCH中可以包括SFI，用于为一部分可以动态切换下行接收和上行发射的UE来指明系统在不同时间的上下行方向；GC-PDCCH中可以包括优先(Pre-emption)指示，为一部分受到其他UE干扰的UE来说明干扰的存在；GC-PDCCH中可以包括功率控制指示，用于指示需要调整上行发射功率的UE。
针对一组UE，第二确定单元102可以基于如下中的一个或多个来确定要用于发送GC-PDCCH的发射波束：所述一组用户设备中的各个用户设备与基站的波束对的信息；各个用户的优先级。
例如，当一组UE中有多个UE有共同的适合于其自身的发射波束时，则优先将该共同的发射波束确定为用于发送GC-PDCCH的发射波束。或者，优先将适合于较多UE的发射波束确定为用于发送GC-PDCCH的发射波束。作为一个非限制性示例，比如，在一个小区中，基站服务 于三个UE，通过CSI-RS的波束扫描后，UE分别上报给基站如下适合于该UE的发射波束：UE1上报了CRI3、CRI5、CRI7；UE2上报了CRI3、CRI7；UE3上报了CRI7、CRI9。如果GC-PDCCH只能通过一个发射波束发送，则第二确定单元102可以选择对应于CRI7的发射波束。如果GC-PDCCH可以通过两个发射波束发送，则除了CRI7之外，第二确定单元102还可以选择对应于CRI3的发射波束(CRI3由2个UE上报)。
可替选地/附加地，第二确定单元102还可以优先选择适合于优先级高的用户的发射波束。例如，UE的优先级可以包括该UE是否被调度。一般而言，被调度的UE比不被调度的UE有更大的需求去解码GC-PDCCH，因此，可以将被调度的UE的优先级设置为高于不被调度的UE的优先级。
在确定了发射波束之后，基站对承载该组UE的控制信息的GC-PDCCH进行波束赋形，并以所确定的发射波束进行发送。
在一个示例中，如图8所示，电子设备300还包括：配置单元303，用于为UE配置CORESET，其中，CORESET包括GC-PDCCH的时频资源和空域资源。例如，GC-PDCCH的空域资源可以包括波束赋形的方向性信息。该方向性信息可以指示基站将使用哪些发射波束来发送GC-PDCCH。
例如，配置单元303可以通过高层信令来向UE提供CORESET的信息。高层信令可以为RRC信令，RRC信令中的CORESET包括GC-TCI，用于表示GC-PDCCH的空域资源。其中，GC-TCI可以包括与GC-PDCCH波束准共址的参考信号波束的信息。有关GC-TCI的细节在第一实施例中已经给出，其同样适用于本实施例，在此不再重复。
此外，高层信令也可以为RRC信令和MAC信令两者，其中，RRC信令中的CORESET包括GC-TCI，用于表示GC-PDCCH的空域资源，MAC信令用于对RRC信令中的GC-TCI进行进一步选择。
一个CORESET中可以包括一个或多个GC-TCI。具体地，基站可以在一个CORESET中配置一个TCI状态，但是为一组UE配置多个CORESET来实现多波束GC-PDCCH的发送。在这种情况下，由于基站天线射频部分对于波束赋形的限制，多个CORESET应该在不同的 OFDM符号中发送。
此外，在配置了多个GC-TCI状态的情况下，为了使得UE能够获知参考各个GC-TCI状态的时间从而作出接收波束的调整，比如使得UE获知在哪个OFDM符号上参考哪个TCI状态，配置单元203还可以向UE提供该时间信息。
如前所述，对于GC-PDCCH而言，其内容可以每个时隙动态变化，从而基站每一个时隙动态配置SFI。但是，GC-PDCCH的内容也可以持续几个(比如，k个，k为大于1的整数)时隙不变，从而基站每k个时隙动态配置SFI。其中，k的大小可以由基站确定。相应地，配置单元303可以为用户设备设置进行GC-PDCCH的监测的监测周期配置，并基于该监测周期配置进行GC-PDCCH的发送。
当监测周期配置指示监测周期多于一个时隙时，配置单元303可以在多个时隙中分别发送GC-PDCCH。这些GC-PDCCH具有相同的内容，例如可以参考图4所示。通过增加发送GC-PDCCH的时频资源，可以发送基于更多波束的GC-PDCCH，从而进一步增加GC-PDCCH的覆盖范围。应该理解，即使在监测周期多于一个时隙时，也可以仅在第一个时隙中发送GC-PDCCH，这不是限制性的。
此外，在多个TRP服务于一个物理小区的场景中，电子设备300可以位于TRP侧，并且配置单元303与同一小区内的其他收发点发送具有相同内容的GC-PDCCH。其中，每个TRP(具体地，配置单元303)可以单独配置各自的CORESET，也可以由多个TRP中的一个或几个来配置所有TRP的CORESET。具体示例可以返回参照图5所示，其中，TRP1和TRP2分别使用不同的发射波束在不同的时频资源上发送具有相同内容的GC-PDCCH。
如第二实施例中所述，UE可以通过测量接收到的GC-PDCCH的DMRS的RSRP或BLER来进行波束对链接失败的判断，并且在判断发生了波束对链接失败时向基站提供波束对链接失败指示，相应地，本实施例的配置单元303可以从UE获取该波束对链接失败指示。
综上所述，根据本实施例的电子设备300通过波束赋形以多个发射波束发送GC-PDCCH，扩大了GC-PDCCH的覆盖范围，提高了UE接收到GC-PDCCH的概率，从而加强了对GC-PDCCH的利用。
为了便于理解，图9示出了基站与用户设备之间的多波束GC-PDCCH的收发的信息流程的示意图。如图9所示，基站经由SSB或CSI-RS对UE进行下行波束扫描，UE对SSB或CSI-RS进行检测，并且向基站上报较适合本UE的发射波束，例如可以使用前述的SSBRI或CRI来进行上报。接下来，基站针对一组UE确定为其发送GC-PDCCH所要使用的发射波束，并使用RRC信令将其通知给UE，例如可以通过在CORESET中包含GC-TCI来表示用于发送GC-PDCCH的发射波束，一个CORESET中可以包括一个或多个GC-TCI。UE在接收到RRC信令之后，可以获知GC-PDCCH要使用哪些发射波束发送，从而选择与其中的某个发射波束配对的接收波束。接着，基站通过波束赋形以多个发射波束发送具有相同内容的GC-PDCCH，即对重复性GC-PDCCH进行波束扫描，UE则使用所选择的接收波束来接收GC-PDCCH。此外，UE还在接收到GC-PDCCH的时频资源的搜索空间内对接收到的GC-PDCCH进行盲解码，以判断该GC-PDCCH是否是针对本UE的。
图10示出了基站与用户设备之间的基于GC-PDCCH的波束对链接失败检测的信息流程的示意图。图10的前半部分与图9中的各个流程相同，在此不再重复。当接收到GC-PDCCH后，UE除了可以进行图9所示的盲解码之外，替选地或者附加地，UE还可以例如通过测量GC-PDCCH的DMRS的RSRP或者BLER，来进行波束对链接失败检测，并且将波束对链接失败指示发送给基站，此外还可以接收基站发送的波束监测失败响应(图10中未示出)。应该注意，无论是被调度UE还是非调度UE均可以基于该GC-PDCCH进行波束对链接失败检测。接下来，基站为UE调度资源并且向UE发送UE专属的PDCCH，并且UE基于该专属PDCCH进行波束对链接失败检测。
图9和图10中的基站也可以是TRP。应该注意，图9和图10中的信息流程仅是示意性的，并不对本申请构成限制。
<第四实施例>
在上文的实施方式中描述用于无线通信的电子设备的过程中，显然还公开了一些处理或方法。下文中，在不重复上文中已经讨论的一些细节的情况下给出这些方法的概要，但是应当注意，虽然这些方法在描述 用于无线通信的电子设备的过程中公开，但是这些方法不一定采用所描述的那些部件或不一定由那些部件执行。例如，用于无线通信的电子设备的实施方式可以部分地或完全地使用硬件和/或固件来实现，而下面讨论的用于无线通信的方法可以完全由计算机可执行的程序来实现，尽管这些方法也可以采用用于无线通信的电子设备的硬件和/或固件。
图11示出了根据本申请的一个实施例的用于无线通信的方法的流程图，该方法包括：确定用户设备与基站之间形成配对的波束对(S11)，每一个波束对包括基站的一个发射波束和用户设备的一个接收波束；以及确定对来自基站的GC-PDCCH进行接收要使用的一个或多个接收波束(S12)，该GC-PDCCH承载针对一组用户设备的控制信息并且由基站进行波束赋形后以多个发射波束发送。该方法例如在用户设备侧执行。
其中，该GC-PDCCH也可以分别由多个TRP进行波束赋形后以多个波束发送。
例如，在步骤S12中，可以基于基站为用户设备配置的CORESET来确定接收GC-PDCCH要使用的接收波束，其中，CORESET包括所述GC-PDCCH的时频资源和空域资源。其中，GC-PDCCH的空域资源可以包括波束赋形的方向性信息。
在步骤S11之前，可以通过高层信令来获取CORESET的信息。在一个示例中，高层信令为RRC信令，所述RRC信令中的CORESET包括GC-TCI，用于表示GC-PDCCH的空域资源。一个CORESET中可以包括一个或多个GC-TCI。
在另一个示例中，高层信令为RRC信令与MAC信令两者，RRC信令中的CORESET包括GC-TCI，用于表示GC-PDCCH的空域资源，MAC信令用于对RRC信令中的GC-TCI进行进一步选择。
例如，GC-TCI可以包括与GC-PDCCH波束准共址的参考信号波束的信息。
在步骤S12中，可以基于上述空域资源确定基站的发射波束，并且将与该发射波束形成配对的接收波束确定为接收GC-PDCCH要使用的接收波束。例如，可以基于包括所确定的基站的发射波束的波束对的链接质量来确定用于接收GC-PDCCH的接收波束。
此外，在步骤S12中，还可以确定链接质量最优的波束对中的接收波束作为对GC-PDCCH进行接收的接收波束。该设置可以用于基站不事先向UE通知GC-PDCCH的发射波束的信息的情况下。
如图11中的虚线框所示，上述方法还可以包括步骤S13：在接收到GC-PDCCH的时频资源的搜索空间内对GC-PDCCH进行盲解码，并且使用GC-RNTI来判断该GC-PDCCH是否是用于本用户设备的。
在步骤S13中，替选地和/或附加地，还可以测量接收的GC-PDCCH的DMRS的RSRP或BLER，以判断由发射波束和接收波束组成的波束对的链接是否失败。并且，在判断发生波束对链接失败的情况下，向基站进行报告。
虽然图11中未示出，上述方法还可以包括如下步骤：从基站获取进行GC-PDCCH的监测的监测周期配置，并基于该监测周期配置执行GC-PDCCH的解码。例如，检测周期可以大于1个时隙。
图12示出了根据本申请的另一个实施例的用于无线通信的方法的流程图，该方法包括：确定用户设备与基站之间形成配对的波束对(S21)，每一个波束对包括基站的一个发射波束和用户设备的一个接收波束；以及确定发送GC-PDCCH要使用的多个发射波束(S22)，所述GC-PDCCH通过波束赋形以所述多个发射波束发送并且承载针对一组用户设备的控制信息。该方法例如在基站侧或TRP侧执行。
在上述方法在TRP侧执行的情况下，所发送的GC-PDCCH可以与同一小区内其他TRP发送的GC-PDCCH具有相同的内容。
在步骤S22中，可以基于如下中的一个或多个来确定要用于发送的发射波束:所述一组用户设备中的各个用户设备与基站的波束对的信息；各个用户设备的优先级。例如，用户设备的优先级包括该用户设备是否被调度。
如图12中的一个虚线框所示，上述方法还可以包括步骤S23：为用户设备配置CORESET，其中，CORESET包括GC-PDCCH的时频资源和空域资源。GC-PDCCH的空域资源例如包括波束赋形的方向性信息。
如图12中的另一个虚线框所示，上述方法还可以包括步骤S24：向 用户设备提供CORESET的信息。该步骤S24可以通过高层信令来进行。
在一个示例中，高层信令为RRC信令，RRC信令中的CORESET包括GC-TCI，用于表示GC-PDCCH的空域资源。
在另一个示例中，高层信令为RRC信令与MAC信令两者，RRC信令中的CORESET包括GC-TCI，用于表示GC-PDCCH的空域资源，MAC信令用于对RRC信令中的GC-TCI进行进一步选择。一个CORESET可以包括一个或多个GC-TCI。
例如，GC-TCI包括与GC-PDCCH波束准共址的参考信号波束的信息。
此外，虽然图12中未示出，但是上述方法还可以包括如下步骤：为用户设备设置进行GC-PDCCH的监测的监测周期配置，并基于该监测周期配置执行GC-PDCCH的发送。当监测周期配置指示监测周期多于一个时隙时，在多个时隙中分别发送GC-PDCCH，这些GC-PDCCH具有相同的内容。
上述方法还可以包括获取来自用户设备的波束对链接失败指示的步骤，该波束对链接失败指示由所述用户设备通过测量接收的GC-PDCCH的DMRS的RSRP或BLER并进行判断而得到。
综上所述，根据本实施例的用于无线通信的方法通过利用波束赋形以多个发射波束发送GC-PDCCH，提高了UE接收到GC-PDCCH的概率，从而加强了对GC-PDCCH的利用。
注意，上述各个方法可以结合或单独使用，其细节在第一至第三实施例中已经进行了详细描述，在此不再重复。
本公开内容的技术能够应用于各种产品。
例如，电子设备300可以被实现为各种基站。基站可以被实现为任何类型的演进型节点B(eNB)或gNB(5G基站)。eNB例如包括宏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。对于gNB也可以由类似的情形。代替地，基站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)。基站可以包括：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，各种类型的用户设备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100或200可以被实现为各种用户设备。用户设备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)。用户设备还可以被实现为执行机器对机器(M2M)通信的终端(也称为机器类型通信(MTC)终端)。此外，用户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(诸如包括单个晶片的集成电路模块)。
[关于基站的应用示例]
(第一应用示例)
图13是示出可以应用本公开内容的技术的eNB或gNB的示意性配置的第一示例的框图。注意，以下的描述以eNB作为示例，但是同样可以应用于gNB。eNB 800包括一个或多个天线810以及基站设备820。基站设备820和每个天线810可以经由RF线缆彼此连接。
天线810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820发送和接收无线信号。如图13所示，eNB 800可以包括多个天线810。例如，多个天线810可以与eNB 800使用的多个频带兼容。虽然图13示出其中eNB 800包括多个天线810的示例，但是eNB 800也可以包括单个天线810。
基站设备820包括控制器821、存储器822、网络接口823以及无线通信接口825。
控制器821可以为例如CPU或DSP，并且操作基站设备820的较高层的各种功能。例如，控制器821根据由无线通信接口825处理的信号中的数据来生成数据分组，并经由网络接口823来传递所生成的分组。控制器821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821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eNB或核心网节点来执行。存储器822包括RAM和ROM，并且存储由控制器821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823为用于将基站设备820连接至核心网824的通信接口。控制器821可以经由网络接口823而与核心网节点或另外的eNB进行通信。在此情况下，eNB 800与核心网节点或其他eNB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823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823为无线通信接口，则与由无线通信接口825使用的频带相比，网络接口823可以使用较高频带用于无线通信。
无线通信接口825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810来提供到位于eNB 800的小区中的终端的无线连接。无线通信接口825通常可以包括例如基带(BB)处理器826和RF电路827。BB处理器826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821，BB处理器826可以具有上述逻辑功能的一部分或全部。BB处理器826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826的功能改变。该模块可以为插入到基站设备820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827可以包括例如混频器、滤波器和放大器，并且经由天线810来传送和接收无线信号。
如图13所示，无线通信接口825可以包括多个BB处理器826。例如，多个BB处理器826可以与eNB 800使用的多个频带兼容。如图13所示，无线通信接口825可以包括多个RF电路827。例如，多个RF电路827可以与多个天线元件兼容。虽然图13示出其中无线通信接口825包括多个BB处理器826和多个RF电路827的示例，但是无线通信接口825也可以包括单个BB处理器826或单个RF电路827。
在图13所示的eNB 800中，电子设备300的收发器可以由无线通信接口825实现。功能的至少一部分也可以由控制器821实现。例如，控 制器821可以通过执行第一确定单元301、第二确定单元302的功能来执行要用于GC-PDCCH的发送的多个发射波束的确定，通过执行配置单元303的功能来配置CORESET，以向UE通知关于发射波束的空域资源的信息。
(第二应用示例)
图14是示出可以应用本公开内容的技术的eNB或gNB的示意性配置的第二示例的框图。注意，类似地，以下的描述以eNB作为示例，但是同样可以应用于gNB。eNB 830包括一个或多个天线840、基站设备850和RRH 860。RRH 860和每个天线840可以经由RF线缆而彼此连接。基站设备850和RRH 860可以经由诸如光纤线缆的高速线路而彼此连接。
天线840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RRH 860发送和接收无线信号。如图14所示，eNB 830可以包括多个天线840。例如，多个天线840可以与eNB 830使用的多个频带兼容。虽然图14示出其中eNB 830包括多个天线840的示例，但是eNB 830也可以包括单个天线840。
基站设备850包括控制器851、存储器852、网络接口853、无线通信接口855以及连接接口857。控制器851、存储器852和网络接口853与参照图13描述的控制器821、存储器822和网络接口823相同。
无线通信接口855支持任何蜂窝通信方案(诸如LTE和LTE-先进)，并且经由RRH 860和天线840来提供到位于与RRH 860对应的扇区中的终端的无线通信。无线通信接口855通常可以包括例如BB处理器856。除了BB处理器856经由连接接口857连接到RRH 860的RF电路864之外，BB处理器856与参照图13描述的BB处理器826相同。如图14所示，无线通信接口855可以包括多个BB处理器856。例如，多个BB处理器856可以与eNB 830使用的多个频带兼容。虽然图14示出其中无线通信接口855包括多个BB处理器856的示例，但是无线通信接口855也可以包括单个BB处理器856。
连接接口857为用于将基站设备850(无线通信接口855)连接至RRH 860的接口。连接接口857还可以为用于将基站设备850(无线通信接口855)连接至RRH 860的上述高速线路中的通信的通信模块。
RRH 860包括连接接口861和无线通信接口863。
连接接口861为用于将RRH 860(无线通信接口863)连接至基站设备850的接口。连接接口861还可以为用于上述高速线路中的通信的通信模块。
无线通信接口863经由天线840来传送和接收无线信号。无线通信接口863通常可以包括例如RF电路864。RF电路864可以包括例如混频器、滤波器和放大器，并且经由天线840来传送和接收无线信号。如图14所示，无线通信接口863可以包括多个RF电路864。例如，多个RF电路864可以支持多个天线元件。虽然图14示出其中无线通信接口863包括多个RF电路864的示例，但是无线通信接口863也可以包括单个RF电路864。
在图14所示的eNB 830中，电子设备300的收发器可以由无线通信接口825实现。功能的至少一部分也可以由控制器821实现。例如，控制器821可以通过执行第一确定单元301、第二确定单元302的功能来执行要用于GC-PDCCH的发送的多个发射波束的确定，通过执行配置单元303的功能来配置CORESET，以向UE通知关于发射波束的空域资源的信息。
[关于用户设备的应用示例]
(第一应用示例)
图15是示出可以应用本公开内容的技术的智能电话900的示意性配置的示例的框图。智能电话900包括处理器901、存储器902、存储装置903、外部连接接口904、摄像装置906、传感器907、麦克风908、输入装置909、显示装置910、扬声器911、无线通信接口912、一个或多个天线开关915、一个或多个天线916、总线917、电池918以及辅助控制器919。
处理器901可以为例如CPU或片上系统(SoC)，并且控制智能电话900的应用层和另外层的功能。存储器902包括RAM和ROM，并且存储数据和由处理器901执行的程序。存储装置903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904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900的接口。
摄像装置906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907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908将输入到智能电话900的声音转换为音频信号。输入装置909包括例如被配置为检测显示装置910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910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900的输出图像。扬声器911将从智能电话900输出的音频信号转换为声音。
无线通信接口912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912通常可以包括例如BB处理器913和RF电路914。BB处理器913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914可以包括例如混频器、滤波器和放大器，并且经由天线916来传送和接收无线信号。注意，图中虽然示出了一个RF链路与一个天线连接的情形，但是这仅是示意性的，还包括一个RF链路通过多个移相器与多个天线连接的情形。无线通信接口912可以为其上集成有BB处理器913和RF电路914的一个芯片模块。如图15所示，无线通信接口912可以包括多个BB处理器913和多个RF电路914。虽然图15示出其中无线通信接口912包括多个BB处理器913和多个RF电路914的示例，但是无线通信接口912也可以包括单个BB处理器913或单个RF电路914。
此外，除了蜂窝通信方案之外，无线通信接口912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912可以包括针对每种无线通信方案的BB处理器913和RF电路914。
天线开关915中的每一个在包括在无线通信接口912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916的连接目的地。
天线916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912传送和接收无线信号。如图15所示，智能电话900可以包括多个天线916。虽然图15示出其中智能电话900包括多个天线916的示例，但是智能电话900也可以包括单个天线916。
此外，智能电话900可以包括针对每种无线通信方案的天线916。在此情况下，天线开关915可以从智能电话900的配置中省略。
总线917将处理器901、存储器902、存储装置903、外部连接接口904、摄像装置906、传感器907、麦克风908、输入装置909、显示装置910、扬声器911、无线通信接口912以及辅助控制器919彼此连接。电池918经由馈线向图15所示的智能电话900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919例如在睡眠模式下操作智能电话900的最小必需功能。
在图15所示的智能电话900中，电子设备100或200的收发器可以由无线通信接口912实现。功能的至少一部分也可以由处理器901或辅助控制器919实现。例如，处理器901或辅助控制器919可以通过执行第一确定单元101、第二确定单元102的功能来确定要用于接收GC-PDCCH的接收波束，通过执行检测单元201的功能来实现GC-PDCCH的盲解码以及/或者波束对链接失败检测。
(第二应用示例)
图16是示出可以应用本公开内容的技术的汽车导航设备920的示意性配置的示例的框图。汽车导航设备920包括处理器921、存储器922、全球定位系统(GPS)模块924、传感器925、数据接口926、内容播放器927、存储介质接口928、输入装置929、显示装置930、扬声器931、无线通信接口933、一个或多个天线开关936、一个或多个天线937以及电池938。
处理器921可以为例如CPU或SoC，并且控制汽车导航设备920的导航功能和另外的功能。存储器922包括RAM和ROM，并且存储数据和由处理器921执行的程序。
GPS模块924使用从GPS卫星接收的GPS信号来测量汽车导航设备920的位置(诸如纬度、经度和高度)。传感器925可以包括一组传感器，诸如陀螺仪传感器、地磁传感器和空气压力传感器。数据接口926 经由未示出的终端而连接到例如车载网络941，并且获取由车辆生成的数据(诸如车速数据)。
内容播放器927再现存储在存储介质(诸如CD和DVD)中的内容，该存储介质被插入到存储介质接口928中。输入装置929包括例如被配置为检测显示装置930的屏幕上的触摸的触摸传感器、按钮或开关，并且接收从用户输入的操作或信息。显示装置930包括诸如LCD或OLED显示器的屏幕，并且显示导航功能的图像或再现的内容。扬声器931输出导航功能的声音或再现的内容。
无线通信接口933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933通常可以包括例如BB处理器934和RF电路935。BB处理器934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935可以包括例如混频器、滤波器和放大器，并且经由天线937来传送和接收无线信号。无线通信接口933还可以为其上集成有BB处理器934和RF电路935的一个芯片模块。如图16所示，无线通信接口933可以包括多个BB处理器934和多个RF电路935。虽然图16示出其中无线通信接口933包括多个BB处理器934和多个RF电路935的示例，但是无线通信接口933也可以包括单个BB处理器934或单个RF电路935。
此外，除了蜂窝通信方案之外，无线通信接口933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LAN方案。在此情况下，针对每种无线通信方案，无线通信接口933可以包括BB处理器934和RF电路935。
天线开关936中的每一个在包括在无线通信接口933中的多个电路(诸如用于不同的无线通信方案的电路)之间切换天线937的连接目的地。
天线937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933传送和接收无线信号。如图16所示，汽车导航设备920可以包括多个天线937。虽然图16示出其中汽车导航设备920包括多个天线937的示例，但是汽车导航设备920也可以包括单个天线937。
此外，汽车导航设备920可以包括针对每种无线通信方案的天线937。在此情况下，天线开关936可以从汽车导航设备920的配置中省略。
电池938经由馈线向图16所示的汽车导航设备920的各个块提供电力，馈线在图中被部分地示为虚线。电池938累积从车辆提供的电力。
在图16示出的汽车导航设备920中，电子设备100或200的收发器可以由无线通信接口912实现。功能的至少一部分也可以由处理器901或辅助控制器919实现。例如，处理器901或辅助控制器919可以通过执行第一确定单元101、第二确定单元102的功能来确定要用于接收GC-PDCCH的接收波束，通过执行检测单元201的功能来实现GC-PDCCH的盲解码以及/或者波束对链接失败检测。
本公开内容的技术也可以被实现为包括汽车导航设备920、车载网络941以及车辆模块942中的一个或多个块的车载系统(或车辆)940。车辆模块942生成车辆数据(诸如车速、发动机速度和故障信息)，并且将所生成的数据输出至车载网络941。
以上结合具体实施例描述了本发明的基本原理，但是，需要指出的是，对本领域的技术人员而言，能够理解本发明的方法和装置的全部或者任何步骤或部件，可以在任何计算装置(包括处理器、存储介质等)或者计算装置的网络中，以硬件、固件、软件或者其组合的形式实现，这是本领域的技术人员在阅读了本发明的描述的情况下利用其基本电路设计知识或者基本编程技能就能实现的。
而且，本发明还提出了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。
在通过软件或固件实现本发明的情况下，从存储介质或网络向具有专用硬件结构的计算机(例如图17所示的通用计算机1700)安装构成该软件的程序，该计算机在安装有各种程序时，能够执行各种功能等。
在图17中，中央处理单元(CPU)1701根据只读存储器(ROM)1702中存储的程序或从存储部分1708加载到随机存取存储器(RAM)1703的程序执行各种处理。在RAM 1703中，也根据需要存储当CPU 1701执行各种处理等等时所需的数据。CPU 1701、ROM 1702和RAM 1703经由总线1704彼此连接。输入/输出接口1705也连接到总线1704。
下述部件连接到输入/输出接口1705：输入部分1706(包括键盘、鼠标等等)、输出部分1707(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1708(包括硬盘等)、通信部分1709(包括网络接口卡比如LAN卡、调制解调器等)。通信部分1709经由网络比如因特网执行通信处理。根据需要，驱动器1710也可连接到输入/输出接口1705。可移除介质1711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1710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1708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移除介质1711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17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移除介质1711。可移除介质1711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 1702、存储部分1708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。
还需要指出的是，在本发明的装置、方法和系统中，各部件或各步骤是可以分解和/或重新组合的。这些分解和/或重新组合应该视为本发明的等效方案。并且，执行上述系列处理的步骤可以自然地按照说明的顺序按时间顺序执行，但是并不需要一定按时间顺序执行。某些步骤可以并行或彼此独立地执行。
最后，还需要说明的是，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者设备不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者设备所固有的要素。此外， 在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括所述要素的过程、方法、物品或者设备中还存在另外的相同要素。
以上虽然结合附图详细描述了本发明的实施例，但是应当明白，上面所描述的实施方式只是用于说明本发明，而并不构成对本发明的限制。对于本领域的技术人员来说，可以对上述实施方式作出各种修改和变更而没有背离本发明的实质和范围。因此，本发明的范围仅由所附的权利要求及其等效含义来限定。

Claims (32)

  1. 一种用于无线通信的电子设备，包括：
    处理电路，被配置为：
    确定用户设备与基站之间形成配对的波束对，每一个波束对包括基站的一个发射波束和用户设备的一个接收波束；以及
    确定对来自基站的组共享物理下行控制信道进行接收要使用的一个或多个接收波束，该组共享物理下行控制信道承载针对一组用户设备的控制信息并且由基站进行波束赋形后以多个发射波束发送。
  2. 根据权利要求1所述的电子设备，其中，所述处理电路被配置为基于基站为用户设备配置的控制资源集合来确定接收所述组共享物理下行控制信道要使用的接收波束，其中，所述控制资源集合包括所述组共享物理下行控制信道的时频资源和空域资源。
  3. 根据权利要求2所述的电子设备，其中，所述组共享物理下行控制信道的空域资源包括波束赋形的方向性信息。
  4. 根据权利要求2所述的电子设备，其中，所述处理电路被配置为通过高层信令来获取所述控制资源集合的信息。
  5. 根据权利要求4所述的电子设备，其中，所述高层信令为无线资源控制信令，所述无线资源控制信令中的所述控制资源集合包括组共享传输配置指示，用于表示所述组共享物理下行控制信道的空域资源。
  6. 根据权利要求4所述的电子设备，其中，所述高层信令为无线资源控制信令与介质访问控制信令两者，所述无线资源控制信令中的所述控制资源集合包括组共享传输配置指示，用于表示所述组共享物理下行控制信道的空域资源，所述介质访问控制信令用于对所述无线资源控制信令中的组共享配置指示进行进一步选择。
  7. 根据权利要求5或6所述的电子设备，其中，所述组共享传输配置指示包括与组共享物理下行控制信道波束准共址的参考信号波束的信息。
  8. 根据权利要求5或6所述的电子设备，其中，一个控制资源集合 中包括一个或多个组共享传输配置指示。
  9. 根据权利要求2所述的电子设备，其中，所述处理电路还被配置为基于所述空域资源确定基站的发射波束，并且将与该发射波束形成配对的接收波束确定为接收所述组共享物理下行控制信道要使用的接收波束。
  10. 根据权利要求9所述的电子设备，其中，所述处理电路还被配置为基于包括所确定的基站的发射波束的波束对的链接质量来确定用于接收所述组共享物理下行控制信道的接收波束。
  11. 根据权利要求1所述的电子设备，其中，所述处理电路被配置为确定链接质量最优的波束对中的接收波束作为对所述组共享物理下行控制信道进行接收的接收波束。
  12. 根据权利要求1所述的电子设备，其中，所述处理电路还被配置为在接收到所述组共享物理下行控制信道的时频资源的搜索空间内对所述组共享物理下行控制信道进行盲解码，并且使用组共享无线网络临时标识来判断该组共享物理下行控制信道是否是用于本用户设备的。
  13. 根据权利要求1所述的电子设备，其中，所述处理电路还被配置为从基站获取进行所述组共享物理下行控制信道的监测的监测周期配置，并基于该监测周期配置执行所述组共享物理下行控制信道的解码。
  14. 根据权利要求1所述的电子设备，其中，所述处理电路还被配置为测量接收的组共享物理下行控制信道的解调参考信号的参考信号接收功率或误块率，以判断由发射波束和接收波束组成的波束对的链接是否失败。
  15. 根据权利要求1所述的电子设备，其中，所述组共享物理下行控制信道分别由多个收发点进行波束赋形后以多个波束发送。
  16. 一种用于无线通信的电子设备，包括：
    处理电路，被配置为：
    确定用户设备与基站之间形成配对的波束对，每一个波束对包括基站的一个发射波束和用户设备的一个接收波束；以及
    确定发送组共享物理下行控制信道要使用的多个发射波束，所述组共享物理下行控制信道通过波束赋形以所述多个发射波束发送并且承载 针对一组用户设备的控制信息。
  17. 根据权利要求16所述的电子设备，其中，所述处理电路被配置成为用户设备配置控制资源集合，其中，所述控制资源集合包括所述组共享物理下行控制信道的时频资源和空域资源。
  18. 根据权利要求17所述的电子设备，其中，所述组共享物理下行控制信道的空域资源包括波束赋形的方向性信息。
  19. 根据权利要求17所述的电子设备，其中，所述处理电路被配置为通过高层信令来向所述用户设备提供所述控制资源集合的信息。
  20. 根据权利要求19所述的电子设备，其中，所述高层信令为无线资源控制信令，所述无线资源控制信令中的所述控制资源集合包括组共享传输配置指示，用于表示所述组共享物理下行控制信道的空域资源。
  21. 根据权利要求19所述的电子设备，其中，所述高层信令为无线资源控制信令与介质访问控制信令两者，所述无线资源控制信令中的所述控制资源集合包括组共享传输配置指示，用于表示所述组共享物理下行控制信道的空域资源，所述介质访问控制信令用于对所述无线资源控制信令中的组共享配置指示进行进一步选择。
  22. 根据权利要求20或21所述的电子设备，其中，所述组共享传输配置指示包括与组共享物理下行控制信道波束准共址的参考信号波束的信息。
  23. 根据权利要求20或21所述的电子设备，其中，一个控制资源集合中包括一个或多个组共享传输配置指示。
  24. 根据权利要求16所述的电子设备，其中，所述处理电路被配置为基于如下中的一个或多个来确定要用于发送的发射波束:所述一组用户设备中的各个用户设备与基站的波束对的信息；各个用户设备的优先级。
  25. 根据权利要求24所述的电子设备，其中，用户设备的优先级包括该用户设备是否被调度。
  26. 根据权利要求16所述的电子设备，其中，所述处理电路还被配置成为用户设备设置进行所述组共享物理下行控制信道的监测的监测周期配置，并基于该监测周期配置执行所述组共享物理下行控制信道的发 送。
  27. 根据权利要求26所述的电子设备，其中，当所述监测周期配置指示监测周期多于一个时隙时，所述处理电路被配置为在多个时隙中分别发送所述组共享物理下行控制信道。
  28. 根据权利要求16所述的电子设备，其中，所述电子设备位于收发点侧，所述处理电路被配置为与同一小区内的其他收发点发送具有相同内容的组共享物理下行控制信道。
  29. 根据权利要求16所述的电子设备，其中，所述处理电路被配置为获取来自用户设备的波束对链接失败指示，该波束对链接失败指示由所述用户设备通过测量接收的组共享物理下行控制信道的解调参考信号的参考信号接收功率或误块率并进行判断而得到。
  30. 一种用于无线通信的方法，包括：
    确定用户设备与基站之间形成配对的波束对，每一个波束对包括基站的一个发射波束和用户设备的一个接收波束；以及
    确定对来自基站的组共享物理下行控制信道进行接收要使用的一个或多个接收波束，该组共享物理下行控制信道承载针对一组用户设备的控制信息并且由基站进行波束赋形后以多个发射波束发送。
  31. 一种用于无线通信的方法，包括：
    确定用户设备与基站之间形成配对的波束对，每一个波束对包括基站的一个发射波束和用户设备的一个接收波束；以及
    确定发送组共享物理下行控制信道要使用的多个发射波束，所述组共享物理下行控制信道通过波束赋形以所述多个发射波束发送，并且承载针对一组用户设备的控制信息。
  32. 一种计算机可读存储介质，其上存储有计算机可执行指令，当所述计算机可执行指令被执行时，使得执行根据权利要求30或31所述的用于无线通信的方法。
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