WO2019149072A1 - 一种同步信号配置方法及装置 - Google Patents

一种同步信号配置方法及装置 Download PDF

Info

Publication number
WO2019149072A1
WO2019149072A1 PCT/CN2019/072018 CN2019072018W WO2019149072A1 WO 2019149072 A1 WO2019149072 A1 WO 2019149072A1 CN 2019072018 W CN2019072018 W CN 2019072018W WO 2019149072 A1 WO2019149072 A1 WO 2019149072A1
Authority
WO
WIPO (PCT)
Prior art keywords
node
synchronization signal
synchronization
time
beam information
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2019/072018
Other languages
English (en)
French (fr)
Inventor
刘凤威
陈磊
邱晶
唐小勇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to EP19746654.3A priority Critical patent/EP3720074A4/en
Publication of WO2019149072A1 publication Critical patent/WO2019149072A1/zh
Priority to US16/918,507 priority patent/US11336412B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • 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
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/005—Allocation of pilot signals, i.e. of signals known to the receiver of common pilots, i.e. pilots destined for multiple users or terminals
    • 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
    • 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
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2655—Synchronisation arrangements
    • 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
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2662—Symbol synchronisation
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0014—Three-dimensional division
    • H04L5/0023—Time-frequency-space
    • 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 signalling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04—Large scale networks; Deep hierarchical networks
    • H04W84/042—Public Land Mobile systems, e.g. cellular systems
    • H04W84/047—Public Land Mobile systems, e.g. cellular systems using dedicated repeater stations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/001—Synchronization between nodes
    • H04W56/002—Mutual synchronization
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices
    • H04W88/085—Access point devices with remote components

Definitions

  • the embodiments of the present invention relate to the field of communications technologies, and in particular, to a synchronization signal configuration method and apparatus.
  • High-frequency electromagnetic waves are mainly used for communication.
  • High-frequency electromagnetic waves have the disadvantages of poor diffraction capability and serious propagation attenuation, which may cause problems in the communication network.
  • the relaying transmission and reception point (rTRP) of the wireless backhaul link can solve the problem of covering the blind zone in the communication network, and the relay transmission receiving point can be called a relay node.
  • one relay node can provide service for another relay node, that is, one relay node.
  • rTRP1 can provide services for rTRP2
  • the base station is the upper node of rTRP1
  • rTRP2 is the lower node of rTRP1.
  • multiple relay nodes should have the capability of mutual discovery.
  • a user equipment can discover one or more network devices by detecting a synchronization signal.
  • the network device of the NR system sends up to L synchronization signal blocks/physical broadcast channel blocks (SS/PBCH blocks, SSBs) within 5 ms, and the L SSBs may be referred to as a SSB burst set.
  • L SSBs L synchronization signal blocks/physical broadcast channel blocks
  • the SSB burst set is periodically repeated, and the period is configurable.
  • the resource and time overhead required in the above method is large, and in a multi-hop multi-connection relay network, when the relay node works normally, it needs to continuously send signals to the lower-level node and receive signals from the upper-level node, so It is difficult to coordinate sufficient resources to perform SSB detection according to the above method to achieve mutual discovery between relay nodes.
  • Embodiments of the present application provide a synchronization signal configuration method and apparatus for reducing resource and time overhead of mutual discovery between relay nodes.
  • a synchronization signal configuration method is provided, which is applied to a relay network including a first node and a second node, where the first node is a superior node of the second node, and the method includes: the first node to the second node Sending synchronization signal configuration information, the synchronization signal configuration information is used to indicate M first synchronization signal time-frequency positions and N second synchronization signal time-frequency positions in the candidate synchronization signal time-frequency position set; wherein, the first synchronization signal time-frequency The location is used by the second node to send a first synchronization signal, and the second synchronization signal time-frequency position is used by the second node to receive or detect the second synchronization signal, and the candidate synchronization signal location set includes W synchronization signal time-frequency locations, W ⁇ (M +N).
  • a primary synchronization signal (PSS), a secondary synchronization signal (SSS), and a broadcast channel are transmitted on four consecutive OFDM symbols, which is called a synchronization signal/ Physical broadcast block (SS/PBCH block).
  • PSS primary synchronization signal
  • SSS secondary synchronization signal
  • SS/PBCH block synchronization signal/ Physical broadcast block
  • a synchronization signal configuration method is provided, which is applied to a relay network including a first node and a second node, where the first node is a superior node of the second node, and the method includes: receiving, by the second node, the first node Synchronization signal configuration information of the node, the synchronization signal configuration information is used to indicate M first synchronization signal time-frequency positions and N second synchronization signal time-frequency positions in the candidate synchronization signal set, wherein the candidate synchronization signal set includes W synchronizations The signal, W ⁇ (M+N); the second node transmits the first synchronization signal at the M first synchronization signal time-frequency position according to the synchronization signal configuration information, and receives or detects the second synchronization signal at the second synchronization signal time-frequency position.
  • the synchronization information configuration information is sent to the second node by using the first node, where the synchronization signal configuration information is used to indicate that the second node sends the time-frequency position of the M first synchronization signals, and is used to instruct the second node to detect the N.
  • the time-frequency position of the second synchronization signal so that when the second node receives the synchronization signal configuration information, the first synchronization signal can be transmitted according to the synchronization signal configuration information, and the second synchronization signal of the other node can be detected, so that other nodes can be Detecting a first synchronization signal of the second node at the time-frequency position of the M first synchronization signals, and detecting, by the second node, a second synchronization signal of the other node at a time-frequency position of the N second synchronization signals, thereby implementing a relay node
  • the mutual discovery can also prevent the relay node from detecting the time-frequency position of each synchronization signal in the set of time-frequency positions of the candidate synchronization signals, thereby reducing the resource and time overhead of mutual discovery between the relay nodes.
  • the synchronization signal configuration information is further used to indicate transmit beam information of the H first synchronization signals in the M first synchronization signals, where M ⁇ H.
  • the first node sends, to the second node, indication information for indicating transmit beam information of the H first synchronization signals in the M first synchronization signals.
  • the time overhead of performing beam scanning by the relay node may be further reduced.
  • the transmit beam information of the at least one of the H first synchronization signals is associated with a specified transmit beam information of the second node.
  • the designated transmit beam information may be the transmit beam information when the synchronization signal or the reference signal that is configured by the second node.
  • the at least one of the H first synchronization signals is associated with a designated transmission signal of the second node. For example, associated with the synchronization signal or reference signal that has been configured by the second node, the configured synchronization signal or reference signal is copied to the at least one first synchronization signal time-frequency position.
  • the relay network further includes a third node, the transmit beam information of the at least one of the first synchronization signals and the designation of the third node The transmit beam information is associated.
  • the transmit beam information of the at least one first synchronization signal is associated with the receive beam information of the second node that receives the specified transmit signal of the third node.
  • the at least one first synchronization signal may include one or more first synchronization signals.
  • the plurality of first synchronization signals may correspond to one beam, or may correspond to multiple beams, that is, receive.
  • the beam information may include one or more beams.
  • the relay network further includes a third node, and the at least one of the H first synchronization signals is related to a designated transmission signal of the third node. Union.
  • the designated sending signal of the third node may be reported by the second node to the first node.
  • the transmit beam information of the at least one of the (M-H) first synchronization signals may be customized by the second node.
  • the transmit beam information of the at least one of the H first synchronization signals is associated with a specified transmit beam information of the first node.
  • the at least one of the H first synchronization signals is associated with a designated transmission signal of the first node.
  • the synchronization signal configuration information is further used to indicate that the second node receives the received beam information when the K second synchronization signals of the N second synchronization signals are received.
  • the time overhead of performing the beam scanning by the relay node can be further reduced.
  • the received beam information of the at least one of the K second synchronization signals is associated with a designated transmit beam information of the second node.
  • the designated transmit beam information may be transmit beam information when the synchronization signal or the reference signal is sent to other nodes that the second node has configured.
  • the at least one of the K second synchronization signals is associated with a designated transmission signal of the second node.
  • the designated transmission signal may be a synchronization signal or a reference signal that has been configured by the second node.
  • the relay network further includes a third node, and the receiving beam information of the at least one second synchronization signal of the K second synchronization signals is received by the second node.
  • a three-node is associated with a received beam information specifying a transmitted signal.
  • the first node may instruct the second node to detect the synchronization signal or the reference signal of the third node on the at least one second synchronization signal, and the used reception beam information may be the configured reception beam when communicating with the third node. information.
  • the at least one second synchronization signal may include one or more second synchronization signals.
  • the plurality of second synchronization signals may correspond to one beam, or may correspond to multiple beams, that is, receive.
  • the beam information may include one or more beams.
  • the received beam information of the at least one of the K second synchronization signals is associated with a designated transmit beam information of the first node.
  • the at least one of the K second synchronization signals is associated with a designated transmission signal of the first node.
  • the relay network further includes a fourth node, the first node may instruct the second node to detect the synchronization signal of the fourth signal on the at least one second synchronization signal, The first node may not indicate receive beam information of the at least one second synchronization signal.
  • the second node when the second node is in the mobile process, the second node needs to continuously scan for radio resource management and handover, and the first node may configure the second
  • the scan beam of the node does not collide with the transmit beam, for example, the set of time-frequency positions of the scan synchronization signal of the second node is restricted, that is, the second node is configured not to scan the time-frequency position of the synchronization signal sent by itself, thereby implementing the second movement.
  • the synchronization signal configuration of the node enables it to discover each other with other relay nodes in the network.
  • the mutual discovery between the relay nodes may also be implemented by configuring a reference signal of the relay node included in the relay network.
  • the first node may configure a location at which the second node sends the first reference signal, and configure the second node to detect a location of the second reference signal of the other relay node, so that the second node may send the first location at the corresponding location.
  • the reference signal and the second reference signal of the other relay nodes are detected to achieve mutual discovery between the relay nodes.
  • the process of the mutual discovery of the relay nodes is implemented by configuring the reference signal of the relay node included in the relay network, which is similar to the process of configuring the synchronization signal of the relay node. For details, refer to the foregoing description. I will not repeat them here.
  • a first node is provided, where the first node is configured to implement the functions in the synchronization signal configuration method provided by the foregoing first aspect or any one of the possible implementation manners of the first aspect, where
  • the functions described can be implemented in hardware or in hardware by executing the corresponding software.
  • the hardware or software includes one or more corresponding units of the above functions.
  • the structure of the first node includes a processor and a memory, where the code stores data and data, and the memory is coupled to the processor, and the processor is configured to support the first node to perform the first Aspect or configuration method of synchronization signal provided by any of the possible implementations of the first aspect.
  • the first node may further include a communication interface and a bus, where the communication interface is connected to the processor through the bus.
  • a second node is provided, where the second node is configured to implement the function in the synchronization signal configuration method provided by any of the foregoing possible implementation manners of the second aspect or the second aspect,
  • the functions described can be implemented in hardware or in hardware by executing the corresponding software.
  • the hardware or software includes one or more corresponding units of the above functions.
  • the structure of the second node includes a processor and a memory, where the code stores data and data, and the memory is coupled to the processor, and the processor is configured to support the second node to execute the second The synchronization signal configuration method provided by the aspect or any of the possible implementations of the second aspect.
  • the second node may further include a communication interface and a bus, and the communication interface is connected to the processor through the bus.
  • a still further aspect of the present application provides a computer readable storage medium having stored therein instructions that, when executed on a computer, cause the computer to perform the first aspect or the first aspect described above
  • a synchronization signal configuration method provided by any of the possible implementations.
  • a still further aspect of the present application provides a computer readable storage medium having stored therein instructions that, when executed on a computer, cause the computer to perform the second aspect or the second aspect described above
  • a synchronization signal configuration method provided by any of the possible implementations.
  • a computer program product comprising instructions which, when run on a computer, cause the computer to perform the synchronization provided by any of the above first aspect or any of the possible implementations of the first aspect Signal configuration method.
  • a computer program product comprising instructions which, when run on a computer, cause the computer to perform the synchronization provided by any of the possible implementations of the second aspect or the second aspect described above Signal configuration method.
  • a communication system including a first node and a second node, and the first node is a superior node of the second node.
  • the first node is configured to perform the synchronization signal configuration method provided by the foregoing first aspect or any one of the possible implementation manners of the first aspect; and/or the second node is configured to perform the foregoing second aspect or the second aspect A synchronization signal configuration method provided by any of the possible implementations.
  • 1 is a schematic structural diagram of a relay network
  • FIG. 2 is a schematic structural diagram of a communication system according to an embodiment of the present application.
  • FIG. 3 is a schematic structural diagram of a base station/relay node according to an embodiment of the present disclosure
  • FIG. 4 is a schematic diagram of a node joining a relay network according to an embodiment of the present disclosure
  • FIG. 5 is a schematic flowchart of a method for configuring a synchronization signal according to an embodiment of the present disclosure
  • FIG. 6 is a schematic diagram of detecting a synchronization signal according to an embodiment of the present application.
  • FIG. 7 is a schematic diagram of a scanning beam according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic structural diagram of a first node according to an embodiment of the present disclosure.
  • FIG. 9 is a schematic structural diagram of another first node according to an embodiment of the present disclosure.
  • FIG. 10 is a schematic structural diagram of a second node according to an embodiment of the present disclosure.
  • FIG. 11 is a schematic structural diagram of another second node according to an embodiment of the present application.
  • High-frequency carrier and low-frequency carrier The available frequency band in the communication system can be divided into two frequency bands.
  • the 6 GHz standard that is, the frequency band lower than 6 GHz and the frequency band higher than 6 GHz, will be lower than the frequency band of 6 GHz.
  • the carrier may be referred to as a low frequency carrier, a carrier in a frequency band higher than 6 GHz may be referred to as a high frequency carrier, and 6 GHz may be divided into a range of a high frequency carrier or may be divided into a range of a low frequency carrier.
  • the frequency bands of the low frequency carrier and the high frequency carrier in the embodiments of the present application are relatively low, and the low frequency carrier and the high frequency carrier may be divided by other standards.
  • a carrier may include a plurality of beams whose coverage is within the coverage of the carrier, that is, the coverage of the multiple beams is a subset of the coverage of the carrier, and the carrier may be high.
  • the frequency carrier can also be a low frequency carrier.
  • a beam is a communication resource.
  • the beam can be a wide beam, or a narrow beam, or other type of beam.
  • the beamforming technique can be beamforming techniques or other technical means.
  • the beamforming technology can be specifically digital beamforming technology, analog beamforming technology, and hybrid digital/analog beamforming technology. Different beams can be considered as different resources.
  • the same information or different information can be transmitted through different beams. Alternatively, multiple beams having the same or similar communication characteristics can be considered as one beam.
  • One or more antenna ports may be included in one beam for transmitting data channels, control channels, sounding signals, and the like.
  • the transmit beam may refer to a distribution of signal strengths formed in different directions of the space after the signal is transmitted through the antenna
  • the receive beam may refer to a signal intensity distribution of the wireless signals received from the antenna in different directions in space.
  • one or more antenna ports forming one beam can also be regarded as one antenna port set.
  • the beam can be embodied in the protocol as a spatial filter.
  • the embodiment of the beam in the protocol may also be an antenna port QCL relationship and a spatial Rx parameter.
  • the representation of the beam in the protocol may be the number of various signals, such as the channel state information-reference signal (CSI-RS) number, the synchronization signal/physical broadcast channel (synchronization signal/physical broadcast channel, The number of the SS/PBCH), the number of the sounding reference signal (SRS), the number of the tracking reference signal (TRS), and the like.
  • CSI-RS channel state information-reference signal
  • SS/PBCH the number of the sounding reference signal
  • SRS sounding reference signal
  • TRS tracking reference signal
  • Two antenna ports are said to be quasi co-located if the large-scale properties of the channel over which a symbol on one antenna port is conveyed can be inferred from the channel over which a symbol on the other antenna port is conveyed.
  • -scale properties include one or more of delay spread, Doppler spread, Doppler shift, average gain, average delay, and spatial Rx parameters.
  • the SS/PBCH block can also be written as an SS block/PBCH block, and the corresponding Chinese translation can be a synchronization signal/physical broadcast channel block.
  • the signal for cell search transmitted by the network side may be composed of a primary synchronization signal, a secondary synchronization signal, and a physical broadcast channel.
  • high frequency carriers can be applied to multiple communication systems, such as long term evolution (LTE) communication systems, new radio (NR) communication systems, or may occur in the future.
  • LTE long term evolution
  • NR new radio
  • the high-frequency carrier has the disadvantages of poor diffraction capability and serious propagation attenuation, which may cause coverage blind spots in the communication network.
  • TRP transmission and reception point
  • rTRP relay TRP
  • the relay node of the NR has no official name, and the name used in this application is only an example.
  • FIG. 2 is a schematic structural diagram of a communication system according to an embodiment of the present disclosure.
  • the communication system may also be referred to as a relay network.
  • the communication system includes a base station 201, a relay node 202, and a user equipment 203.
  • the base station 201 may be an evolved Node B (eNodeB), a Node B (NodeB), a macro base station, an access point device, a transmission and reception node (TRP), and the like.
  • eNodeB evolved Node B
  • NodeB Node B
  • TRP transmission and reception node
  • the present application is collectively referred to as a base station.
  • the relay node 202 may be a relay device, a relay device station, an access point device, a micro base station, a TRP, an rTRP, etc., and is referred to as a relay node in the embodiment of the present application.
  • the user equipment 203 may be a user equipment, an in-vehicle device, a wearable device, a computing device, a mobile station, a mobile station, a wireless communication device, a terminal, and the like.
  • the link between the base station 201 and the relay node 202 and between the relay node 202 and the relay node 202 may be referred to as a backhaul link (BL), and the relay node 202 and the user equipment 203 The link between them can be called an access link (AL).
  • BL backhaul link
  • AL access link
  • FIG. 3 is a schematic structural diagram of a base station/relay node provided by an embodiment of the present application.
  • the base station/relay node may include a baseband processing unit (BBU) 301 and a remote radio frequency module (remote).
  • BBU baseband processing unit
  • RRU remote radio frequency module
  • the radio unit (RRU) 302, the RRU 302 and the antenna feeder system 303 are connected, and the BBU 301 and the RRU 302 can be used as needed.
  • the structure shown in FIG. 3 may be a structure of a base station or a structure of a relay node.
  • the BBU 301 is used to implement operation and maintenance of the entire base station or the relay node, implement signaling processing, radio resource management, and a transmission interface to the packet core network, and implement physical layer, medium access control layer, L3 signaling, and operation and maintenance. Control function.
  • the RRU 302 is used to implement conversion between a baseband signal and a radio frequency signal, and realizes demodulation of a wireless reception signal, modulation of a transmission signal, and power amplification.
  • the antenna feeder system 303 can include a plurality of antennas for enabling reception and transmission of wireless air interface signals. It can be understood by those skilled in the art that in a specific implementation process, the base station/relay node can also adopt other general hardware structures, and is not limited to the hardware structure shown in FIG.
  • a node can discover the remaining nodes by scanning a synchronization signal.
  • the node In the low-frequency carrier, the node needs to realize time-frequency synchronization; in the high-frequency carrier, the node finds that in addition to the time-frequency synchronization, beam alignment needs to be realized.
  • the nodes at the transceiver end need to perform beam scanning.
  • the originating end generally uses up to 64 SSBs for beam scanning. It is assumed that the transmitting end uses 32 beam scanning, and the receiving end uses 8 beams for receiving beam scanning. A total of 256 tests are required to complete the beam scanning, and the resource and time overhead are large. For relay nodes that need to serve the UE, such overhead may be unacceptable.
  • the relay node is usually a half-duplex transmission.
  • the relay node cannot send signals to the lower-level node, and the relay node needs to continue to work as it works.
  • the lower-level nodes send various signals, so it is difficult for a working relay node to perform large-cost node discovery and detection.
  • each relay node may synchronously transmit the SSB, which further limits the ability of the relay node to detect the remaining nodes.
  • the relay node that works normally, due to the characteristics of the relay node such as the half-duplex constraint, it is difficult to coordinate sufficient resources and time for the discovery and scanning of the remaining nodes.
  • the relay node is a new network node or a free node (for example, a new network node or a free node, but not limited to a new node or a free node)
  • sufficient resources and time can be provided for neighbor node scanning.
  • B1 has multiple lower-level nodes (for example, R1, R2, R3, and R4).
  • R1, R2, R3, and R4 the angle of R4 is taken as an example.
  • R4 is connected to B1 and is visible to the rest of the relay nodes. The mutual visibility between nodes can mean that they can measure the reference signal or synchronization signal of the other party.
  • R1-R4 are all lower-level relay nodes of B1, but the present application does not limit that the relay nodes that perform mutual discovery belong to the same donor node.
  • the donor node in the relay network can be understood as a node serving the lower node.
  • a new node joins an area and powers on; after booting, R4 scans and discovers the remaining nodes (such as B1 and R1 to R3); subsequently, R4 accesses node B1; After that, R4 will report the scan result to B1, or B1 will configure R4 for further scanning. For example, specify a number of target node IDs and SSB indexes for R4 and/or other reference resources to scan them, and then B1 will configure R4 to report again. Scan results.
  • this scanning process can reuse the existing RRM (radio resource management) process; after that, B1 configures the synchronization signal or reference signal of R4, and configures the measurement windows of the remaining nodes to achieve mutual discovery between nodes; After mutual discovery, the relay node may perform route switching according to factors such as measurement results. For example, R3 is switched from R2 to R4 in FIG.
  • FIG. 5 is a schematic flowchart of a method for configuring a synchronization signal according to an embodiment of the present disclosure. The method is applied to a relay network including a first node and a second node. Referring to FIG. 5, the method includes the following steps.
  • the first node sends synchronization signal configuration information to the second node, where the synchronization signal configuration information is used to indicate M first synchronization signal time-frequency positions and N second synchronization signal time-frequency positions in the candidate synchronization signal time-frequency position set.
  • the first synchronization signal time-frequency position is used by the second node to transmit the synchronization signal
  • the second synchronization signal time-frequency position is used by the second node to receive or detect the synchronization signal.
  • the configuration information may be carried by RRC (radio resource control) layer signaling or MAC (medium access control) layer signaling MAC CE (MAC control element), or may be through high layer signaling (such as X2 interface signaling and NR in LTE).
  • RRC radio resource control
  • MAC medium access control
  • MAC CE MAC control element
  • high layer signaling such as X2 interface signaling and NR in LTE.
  • the Xn interface signaling is transmitted, and the signaling of the transmission information is not limited in this application.
  • the first node may be a base station in the relay network, or may be a relay node in the relay network.
  • the first node may be the base station 201 in FIG. 2 or the relay node 202 in FIG. .
  • the second node may be a relay node in the relay network, and the first node is a superior node of the second node.
  • the second node may be the one in FIG. Any relay node 202, when the first node is a certain relay node 202 in FIG. 2, the second node may be another relay node 202 between the certain relay node 202 and the user equipment 203.
  • the candidate synchronization signal position set includes W synchronization signal time-frequency positions, and W is a positive integer.
  • a primary synchronization signal (PSS), a secondary synchronization signal (SSS), and a broadcast channel are transmitted on four consecutive OFDM symbols, which is referred to as an SS/PBCH block.
  • the above configuration method can be applied to the NR system, including the transmission or reception configuration of the entire SS/PBCH block.
  • the foregoing S501 may be: the first node sends synchronization signal configuration information to the second node, and the synchronization signal configuration information is used to indicate the M in the candidate synchronization signal/physical broadcast channel block (SS/PBCH block) set.
  • the first SS/PBCH block time-frequency position and the N second SS/PBCH block time-frequency positions.
  • multiple synchronization signals are transmitted in 5ms (field), for example, at low frequencies, 4 or 8 synchronization signals are transmitted within 5ms, and at high frequencies, 64 synchronization signals are transmitted within 5ms, more
  • the simultaneous synchronization signals are called an SSB burst set, and the SSB burst set is repeatedly transmitted in a periodic manner.
  • the optional period can be 5ms, 20ms, and the like.
  • the second node sends the 5ms starting position (frame number and field position) of the SSB burst set, and the sending period can be configured by the first node, or the second node is configured to report the first node, or two types.
  • the combination for example, the starting position of the SSB transmission is configured by the first node, and the period of the SSB transmission is determined by the second node and reported to the first node.
  • the transmission and reception time-frequency positions of the reference signal are not necessarily selected in W predefined positions, but It is determined by another manner, for example, that the first node directly configures a time-frequency position, a period, and the like for the transmission or reception resources of the reference signal.
  • the receiving SSB and the transmitting SSB may not be located in the same SSB burst set, for example, the second node is in a set of SSBs (64 locations).
  • Send, receive within another SSB set (64 locations), and the two SSB sets can have different periods.
  • the solution of the present invention may also be used only for a partial SSB set, for example, performing SSB transmission and reception according to the present invention in a partial SSB set, while another SSB set only performs SSB transmission, and in another part of the SSB set, only SSB reception is performed. Or detection.
  • the time-frequency resource configuration of the reference signal receiving and transmitting can be solved by the prior art, and the present application does not limit it.
  • the present application mainly considers a method of indicating a beam or a QCL after the transmission and reception of a synchronization signal or a reference signal is configured.
  • the QCL is primarily the spatial QCL, ie the type D QCL in the NR.
  • the method provided by the embodiment of the present application may be applied to other communication systems, or other discovery signals, and the synchronization signal in the NR system is taken as an example for illustration, but it is not limited to the embodiment of the present application.
  • the candidate SS/PBCH block set may also be referred to as an SS/PBCH block burst set (SS/PBCH block burst set), and the SS/PBCH block burst set may be periodically repeated, and the period may be configured.
  • W W ⁇ (M + N), that is, W may be greater than the sum of M and N, or W may be equal to the sum of M and N, and M and N may both be integers.
  • W W is greater than the sum of M and N
  • the time-frequency location can include a time domain location and a frequency domain location.
  • the time domain position may be a symbol position in the time axis
  • the symbol may be an OFDM symbol
  • the frequency domain position may be a subcarrier position in the frequency axis
  • the subcarrier may be represented by a subcarrier spacing and a center frequency. Or by subcarrier identification or the like.
  • the time-frequency position of the synchronization signal can be determined according to the index of the SS/PBCH block.
  • the first node may be an upper node of multiple relay nodes (or multiple relay nodes may be lower nodes of the first node), and the first node may relay to each of the multiple relay nodes.
  • the node sends synchronization signal configuration information
  • the second node is any one of the multiple relay nodes.
  • the first node may send synchronization signal configuration information to the second node, configured to configure a time-frequency location of the synchronization signal sent by the second node, and configure a second node to detect a time-frequency location of the synchronization signal of the other node.
  • the configuration information sent by the first node to the second node may be provided by the superior node or the donor node of the first node.
  • a donor node may refer to a base station having a wired connection.
  • the time-frequency position and the time-frequency position of the detected sync signal are as shown in FIG. 6.
  • FIG. 6 illustrates an example in which each relay node detects synchronization signals of other multiple relay nodes in one second SS/PBCH block position.
  • the second SS/PBCH block position of R1 for detecting the synchronization signal is the fifth SS/PBCH block, and R1 detects the synchronization signals of R2 to R4 at the fifth SS/PBCH block position; R2 is used for detecting the synchronization signal.
  • the second SS/PBCH block position is the sixth SS/PBCH block, R2 detects the synchronization signals of R1, R3, and R4 on the sixth SS/PBCH block; and R3 is used to detect the second SS/PBCH block of the synchronization signal.
  • the position is the seventh SS/PBCH block, R3 detects the synchronization signals of R1, R2 and R4 on the seventh SS/PBCH block; R4 is used to detect the second SS/PBCH block of the synchronization signal as the eighth SS/ At the PBCH block position, R4 detects the synchronization signals of R1 to R3 on the eighth SS/PBCH block.
  • the first node when the first node sends synchronization signal configuration information to multiple relay nodes of the lower level, the first node may instruct one relay node to detect other relay nodes in one or more SS/PBCH block locations.
  • the synchronization signal simultaneously indicates that the other relay node sends the synchronization signal at the corresponding SS/PBCH block position, so that one relay node can simultaneously detect the synchronization signals of other multiple relay nodes, thereby reducing the detection of the relay node as much as possible.
  • the resource and time overhead of the SS/PBCH block enables mutual discovery between low-overhead relay nodes.
  • the first node may also instruct a relay node to detect synchronization signals of different relay nodes at different one or more SS/PBCH block locations, and indicate different relay nodes in the corresponding SS/PBCH block.
  • the location sends a synchronization signal, so that one relay node obtains synchronization signals of multiple other relay nodes by detecting different SS/PBCH blocks multiple times, so that mutual discovery between relay nodes can be reduced compared with the prior art. Resources and time overhead.
  • the specific relationship between the SS/PBCH block and the sent SS/PBCH block that is detected by the multiple different relay nodes may be any one of the foregoing descriptions, or other possible implementation manners. .
  • the synchronization signal configuration information may be used only for configuring the time-frequency position of the second node to send the synchronization signal (ie, the first SS/PBCH block), or only for configuring the second node to detect the synchronization signals of other nodes (ie, The time-frequency position of the second SS/PBCH block, or both the time-frequency position of the first SS/PBCH block and the time-frequency position of the second SS/PBCH block. That is, the value of M in the M first SS/PBCH blocks may be an integer greater than or equal to 0, and the value of N in the N second SS/PBCH blocks may also be an integer greater than or equal to 0. This example does not specifically limit this.
  • the synchronization signal configuration information may further include information such as a starting position (eg, a frame number and a field number), a period, and the like of the candidate SS/PBCH block set.
  • the synchronization signal configuration information may be generated by the first node; when the first node is a relay node, the synchronization signal configuration information may be generated by the first node, or may be generated by the first node.
  • the upper node generates and sends it to the first node, which is not specifically limited in this embodiment of the present application.
  • the second node receives synchronization signal configuration information from the first node.
  • the synchronization signal configuration information in S502 is consistent with the synchronization signal configuration information in S501. For details, refer to the description in S401, and details are not described herein again.
  • the second node sends a synchronization signal at the M first synchronization signal time-frequency position according to the synchronization signal configuration information, and receives or detects the synchronization signal at the N second synchronization signal time-frequency positions.
  • the M first synchronization signal time-frequency positions may be positions of M first SS/PBCH blocks
  • the N second synchronization signal time-frequency positions may be positions of N second SS/PBCH blocks.
  • the second node may determine the time-frequency positions of the M first SS/PBCH blocks according to the synchronization signal configuration information, and determine the time-frequency positions of the N second SS/PBCH blocks, And synchronizing signals are transmitted at time-frequency positions of the M first SS/PBCH blocks, and synchronization signals of other nodes are detected at time-frequency positions of the N second SS/PBCH blocks.
  • the second node may determine, according to the synchronization signal configuration information, the M first SS/PBCH blocks. The time-frequency position and the synchronization signal are transmitted at the time-frequency positions of the M first SS/PBCH blocks.
  • the second node may determine the time-frequency positions of the N second SS/PBCH blocks according to the synchronization signal configuration information. And detecting synchronization signals of other nodes at time-frequency positions of the N second SS/PBCH blocks.
  • the method may further include: the second node sending the report information to the first node, where the report signal is used to indicate the sending capability of the second node, for example, the second node needs the first SS
  • the number of the /PBCH blocks is reported to the first node, so that the first node can determine the M first SS/PBCH blocks in the synchronization signal configuration information according to the number of the first SS/PBCH blocks reported by the second node.
  • the number of the first SS/PBCH block reported by the second node may be equal to or equal to M, which is not specifically limited in this embodiment.
  • the first node is the upper node of the second node
  • the synchronization information configuration information is sent to the second node by using the first node
  • the synchronization signal configuration information is used to indicate the M first SS/PBCHs that send the synchronization signal.
  • a time-frequency position of the block, and a time-frequency position of the N second SS/PBCH blocks for indicating the synchronization signal so that when the second node receives the synchronization signal configuration information, the synchronization signal can be sent according to the synchronization signal configuration information.
  • the time-frequency position detects the synchronization signals of other nodes, thereby achieving mutual discovery between the relay nodes, and also avoids the relay node detecting each SS/PBCH block in the candidate SS/PBCH block set, thereby reducing the Resource and time overhead for mutual discovery between relay nodes.
  • the synchronization signal configuration information may also be used to indicate a beam of the time-frequency position of the synchronization signal.
  • the synchronization signal configuration information may be used to indicate the transmit beam information of the first synchronization signal; in the second embodiment below, the synchronization signal configuration information may be used to indicate the second synchronization.
  • the receiving beam information of the signal is as follows.
  • the synchronization signal configuration information is further used to indicate beam information of the H first SS/PBCH blocks in the M first SS/PBCH blocks, where M ⁇ H (ie, the synchronization signal configuration information is also used to indicate M Beam information of H first synchronization signals in the first synchronization signal).
  • the first node may also indicate the beam information of the H first SS/PBCH blocks to the second node by using another message.
  • the first node may send the beam indication information to the second node, where the beam indication information is used.
  • the embodiment of the present application indicates, to the first node, the beam information of the H first SS/PBCH blocks by using one or more messages. No specific limitation.
  • the beam information of the M first SS/PBCH blocks are all configured.
  • the second node when the second node sends the synchronization signal at the time-frequency positions of the M first SS/PBCH blocks, the second node may send the configured beam information at the time-frequency positions of the M first SS/PBCH blocks. Synchronization signal.
  • the beam information of the H first SS/PBCH blocks has been configured, and the beam information of the (M-H) first SS/PBCH blocks is not configured.
  • the beam information of the (MH) first SS/PBCH block may be customized by the second node, that is, the second node may select the beam information of the (MH) first SS/PBCH block by using the Serving its subordinate UE or relay node; or the second node reserves the (MH) first SS/PBCH block, and does not send a synchronization signal on the (MH) first SS/PBCH block, for example, the (MH)
  • the position of the first SS/PBCH block is set to zero or data scheduling is performed.
  • the beam information of a part of the first SS/PBCH block in the (M-H) first SS/PBCH block may be customized by the second node, and the other part of the first SS/PBCH block may be reserved.
  • the second node may select a beam of the first part of the first SS/PBCH block. And transmitting the synchronization signal on the time-frequency resource of the customized first SS/PBCH block by using the selected beam information, and transmitting the synchronization signal by using the configured beam information at the time-frequency position of the H first SS/PBCH blocks .
  • the second node may report the required (M-H) to the first node, that is, the second node reports the number of synchronization signals required by the serving UE and the node.
  • the W SS/PBCH blocks may be divided into three types: a first SS/PBCH block, a second SS/PBCH block, and a reserved SS/PBCH block.
  • the reserved SS/PBCH block may include an SS/PBCH block in the first SS/PBCH block that is not configured with beam information, and may also include a blank SS/PBCH block.
  • the first SS/PBCH block can also be divided into two types: customized beam information and configured beam information.
  • the W SS/PBCH blocks can be further divided into other combinations, which are not specifically limited in this embodiment of the present application.
  • the transmit beam information of the at least one first SS/PBCH block of the H first SS/PBCH blocks is associated with a specified transmit beam information of the second node.
  • the transmit beam information of the at least one first SS/PBCH block is the same as or similar to the specified transmit beam information, or the transmit beam information of the at least one first SS/PBCH block and the designated transmit beam information are quasi-co-located (quasico) -location, QCL) relationship.
  • the beam transmission direction of the at least one first SS/PBCH block is the same as the direction of the designated transmit beam, or near the direction of the designated transmit beam.
  • the designated transmit beam information may be beam information of the designated synchronization signal of the second node, and the beam information of the at least one first SS/PBCH block may be the same as the beam information of the designated synchronization signal.
  • the transmit beam information of the at least one first SS/PBCH block is the same as the beam information of a first SS/PBCH block sent by the second node, that is, the SS/PBCH block of a certain location is copied to the at least one The location of an SS/PBCH block.
  • the beam of the at least one first SS/PBCH block may have a QCL relationship with respect to the spatial information with the designated synchronization signal.
  • At least one of the H first SS/PBCH blocks is associated with a designated transmit signal of the second node.
  • the designated transmission signal may be a synchronization signal or a reference signal, where the reference signal may be a CSI-RS, an SRS or a DMRS, or the like.
  • the relay network further includes a third node, and the transmit beam information of the at least one first SS/PBCH block of the H first SS/PBCH blocks is related to the specified transmit beam information of the third node.
  • the relay network further includes a third node, and the transmission of the at least one of the first one of the H first SS/PBCH blocks is associated with the third node.
  • the third node is a relay node or a base station, and the second node may receive a certain signal of the third node.
  • the second node may acquire the synchronization signal of the third node by using the cell search, or the second node is configured to receive the first Three-node CSI-RS.
  • the second node reports its cell search result to the first node, where the search result includes a node list discovered by the second node, and the third node is included in the list.
  • the reporting information may include a synchronization signal or a reference signal number (referred to as signal A) of the third node detected by the second node.
  • the first synchronization signal can be configured to be associated with signal A, for example, indicating that the first synchronization signal and signal A have QCL.
  • the first node when the first node configures the transmission of the first synchronization signal of the second node to be associated with the third node, the first node may only indicate the synchronization signal sent by the second node at the time-frequency position of the first synchronization signal and the third node. Correlate (or notify the second node of the synchronization signal receiving position of the third node) without indicating specific beam information, and the specific beam information is determined by the second node.
  • the at least one first SS/PBCH block may include one or more first SS/PBCH blocks, and when the plurality of first SS/PBCH blocks are included, the plurality of first SS/PBCH blocks may correspond to one beam, or The plurality of first SS/PBCH blocks may correspond to multiple beams, that is, the transmit beam information of the at least one first SS/PBCH block may include one or more beams.
  • the third node may be found by the third node by configuring the synchronization signal of the second node.
  • the specific process may be as follows: the second node finds the third node in the scan, or the first node configures the second node to scan the third node, and after the scan finds the third node, the second node reports the scan result to the first node;
  • the first node configures the second node to send the SS/PBCH block associated with the SSB#X of the third node at a certain first SS/PBCH block location (or multiple first SS/PBCH block locations) for the third node Discover the first node.
  • the SSB here can be a shorthand for the SS/PBCH block.
  • the receive beam direction of the second node is #Y
  • the beam #Y is assumed to be a wide beam
  • the beam #Y may include three narrow beams of #Y1, #Y2, and #Y3.
  • the second node sending the SS/PBCH block associated with SSB#x may include the following three cases:
  • the second node can transmit different first SS/PBCH blocks using beams #Y1, #Y2 and #Y3.
  • first SS/PBCH blocks for transmitting synchronization signals, using #Y1 to send the first SS/PBCH block, #Y2 to send the second SS/PBCH block, and #Y3 to send the third SS/ PBCH block. That is, it is indicated that the N synchronization signal transmissions have a QCL relationship with the signal A, and N can be reported by the second node.
  • the best beam in the transmit beams #Y1, #Y2, #Y3, that is, the first SS/PBCH block is transmitted using the optimal one of the three beams.
  • the first node needs to reserve the scan time for the second node after the transmission is configured, so that the second node determines the optimal beam in the beams #Y1, #Y2, #Y3. That is, a synchronization signal transmission is instructed to have a QCL relationship with the signal A, and the second node needs a certain time to perform an optimal beam search. This time may be specified by the protocol, and the first node configuration or the second node determines the report, for example, the second.
  • the node may report sending the SSB configuration success information to the first node, and the first node may configure the remaining nodes to receive the synchronization signal after receiving the acknowledgement information.
  • the transmit beam information of the at least one first SS/PBCH block of the H first SS/PBCH blocks is associated with a specified transmit beam information of the first node.
  • At least one of the first first SS/PBCH blocks of the H first SS/PBCH blocks is associated with a designated transmit signal of the first node.
  • the synchronization signal configuration information is further used to indicate the reception beam information of the K second SS/PBCH blocks in the N second SS/PBCH blocks (ie, the synchronization signal configuration information is also used to indicate N second Beam information of K second synchronization signals in the synchronization signal).
  • the resource and time overhead of performing beam scanning by the relay node can be further reduced by indicating the received beam information of the second SS/PBCH block.
  • the received beam information of the at least one second SS/PBCH block of the K second SS/PBCH blocks is associated with a specified transmit beam information of the second node.
  • the designated transmit beam information may be another transmit signal or a transmit beam information of a reference signal that has been configured by the second node.
  • At least one of the K second SS/PBCH blocks is associated with a designated transmit signal of the second node.
  • the designated transmission signal may be a synchronization signal or a reference signal that has been configured by the second node. That is, the second node receives another reference signal with the transmit beam direction of an existing reference signal.
  • the relay network further includes a third node, receiving beam information of the at least one second SS/PBCH block of the K second SS/PBCH blocks, and receiving, by the second node, the third node. Specifies the receive beam information of the transmitted signal to be associated.
  • the first node may instruct the second node to detect the synchronization signal or the reference signal of the third node on the at least one second SS/PBCH block, and the received beam information used may be configured to communicate with the third node. Receive beam information.
  • the at least one second SS/PBCH block may include one or more second SS/PBCH blocks, and when the plurality of second SS/PBCH blocks are included, the plurality of second SS/PBCH blocks may correspond to one beam, and Multiple beams may be corresponding, ie the receive beam information may comprise one or more beams.
  • the first node may further configure the second node to perform signal detection on the corresponding one or more SS/PBCH block locations, that is, detect the synchronization signal of the third node, so that the second node discovers the third node.
  • signal detection can be in two modes:
  • the first type causes the second node to search for the synchronization signal of the third node at the specified location.
  • the first node may configure the time-frequency location of the search for the second node and the sequence ID sent by the searched node (eg, the third node).
  • the second node is caused to search for the synchronization signal of the third node at the specified location and the specified beam.
  • the first node may configure the time-frequency location of the search for the second node, the beam information, and the sequence ID sent by the searched node (for example, the third node) (wherein the sequence ID may also be replaced by the searched node) ID or searched reference signal ID).
  • sequence ID may be a cell physical ID, a UE ID, or an ID calculated by using other parameters, and the like, which is not specifically limited in this embodiment.
  • the first node by indicating the beam information of the SS/PBCH block detected by the second node, can prevent the second node from switching different beams for signal detection when using multiple beams, thereby further Reduce the resource and time overhead of mutual discovery between relay nodes.
  • the received beam information of the at least one second SS/PBCH block of the K second SS/PBCH blocks is associated with a specified transmit beam information of the first node.
  • At least one of the K second SS/PBCH blocks is associated with a designated transmit signal of the first node.
  • the relay network further includes a fourth node, where the first node may instruct the second node to detect a synchronization signal of the fourth signal on the at least one second SS/PBCH block, where the first node may not indicate Receive beam information of at least one second SS/PBCH block.
  • the mobile relay node needs to continuously scan for radio resource management (RRM) and handover, and the network
  • RRM radio resource management
  • the configuration may be such that the scanning beam of the mobile relay node does not collide with its transmitting beam, for example, limiting the scanning SS/PBCH block location set of the mobile relay node, that is, configuring the mobile relay node does not need to scan itself to send the SS/PBCH block.
  • the position of the synchronization signal configuration of the mobile relay node is such that it does not affect the transmission of its own synchronization signal when performing mobility measurement.
  • the configuration of the SS/PBCH block in the synchronization configuration information is described in detail by taking 10 SS/PBCH blocks as an example.
  • the first node is a configuration node
  • the second node is a configured node
  • the third node and the fourth node are other relay nodes in the relay network.
  • the configuration of the second node may be as shown in Table 1 below.
  • the SSB in Table 1 represents an SS/PBCH block
  • the transmitting SSB represents a first SS/PBCH block
  • the receiving SSB represents a second SS/PBCH block.
  • the SSBs 1 to 6 in the foregoing Table 1 may represent the first SS/PBCH block for transmitting the synchronization signal configured in the synchronization signal configuration information, where the SSBs 1-2 represent the second node custom beam.
  • the first SS/PBCH block, SSBs 3-6 represent the first node designating transmit beam information or the first SS/PBCH block of the associated node.
  • the SSBs 7 to 10 may indicate second SS/PBCH blocks for detecting synchronization signals configured in the synchronization signal configuration information.
  • the associated node refers to the receiving node or the sending node of the SSB. In a possible implementation, the associated node and the associated SSB/RS may not be indicated at the same time.
  • the two beam information associated in the implementation of the present application may include: the two beam information are the same, or the two beam information have a quasi co-location (QCL) relationship.
  • the association of two signals may mean that the two signals have a quasi co-location (QCL) relationship with respect to spatially received information.
  • mutual discovery between the relay nodes may also be implemented by configuring a reference signal of the relay node included in the relay network.
  • the first node may configure a location at which the second node sends the reference signal, and configure the second node to detect the location of the reference signal of the other relay node, so that the second node can send the reference signal at the corresponding location, and detect other
  • the reference signal of the relay node is used to realize mutual discovery between the relay nodes.
  • the process of the mutual discovery of the relay nodes is implemented by configuring the reference signal of the relay node included in the relay network, which is similar to the process of configuring the synchronization signal of the relay node. For details, refer to the foregoing description. I will not repeat them here.
  • each network element such as the first node, the second node, and the third node, in order to implement the above functions, includes hardware structures and/or software modules corresponding to the execution of the respective functions.
  • the present application can be implemented in a combination of hardware or hardware and computer software in conjunction with the network elements and algorithm steps of the various examples described in the embodiments disclosed herein. Whether a function is implemented in hardware or computer software to drive hardware depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods to implement the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present application.
  • the embodiment of the present application may perform the division of the function modules on the first node and the second node according to the foregoing method example.
  • each function module may be divided according to each function, or two or more functions may be integrated into one processing module.
  • the above integrated modules can be implemented in the form of hardware or in the form of software functional modules. It should be noted that the division of the module in the embodiment of the present application is schematic, and is only a logical function division, and the actual implementation may have another division manner.
  • FIG. 8 is a schematic diagram showing a possible structure of the first node involved in the foregoing embodiment, where the first node includes: a sending unit 801.
  • the sending unit 801 is configured to support the first node to execute S501 in FIG. 5, and to send the detection indication information to the third node.
  • the first node may further include a processing unit 802 and a receiving unit 803; wherein the processing unit 802 is configured to support the first node to perform the step of generating synchronization signal configuration information, and/or other technical processes described herein;
  • Unit 803 is for supporting the first node to receive information from other nodes.
  • the processing unit 802 may be a processor; the sending unit 801 may be a transmitter, the receiving unit 803 may be a receiver, and the receiver and the transmitter may constitute a communication interface.
  • FIG. 9 is a schematic diagram showing a possible logical structure of a first node involved in the foregoing embodiment provided by an embodiment of the present application.
  • the first node includes a memory 901 and a processor 902 for storing code and data of the first node.
  • the processor 902 is configured to perform control management on actions of the first node, for example, the processor 902 is configured to support the step of generating synchronization signal configuration information by the first node, and/or used in the description herein. Other processes of technology.
  • the first node may further include a communication interface 903 and a bus 904.
  • the processor 902, the communication interface 903, and the memory 901 are connected to each other through a bus 904.
  • the communication interface 903 is configured to support the first node to perform communication.
  • the processor 902 can be a central processing unit, a general purpose processor, a digital signal processor, a special purpose integrated circuit, a field programmable gate array or other programmable logic device, a transistor logic device, a hardware component, or any combination thereof. It is possible to implement or carry out the various illustrative logical blocks, modules and circuits described in connection with the present disclosure.
  • the processor may also be a combination of computing functions, for example, including one or more microprocessor combinations, combinations of digital signal processors and microprocessors, and the like.
  • the bus 904 can be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus.
  • PCI peripheral component interconnect
  • EISA extended industry standard architecture
  • the bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 9, but it does not mean that there is only one bus or one type of bus.
  • FIG. 10 shows a possible structural diagram of the second node involved in the foregoing embodiment, where the second node includes: a receiving unit 1001 and a sending unit 1002.
  • the receiving unit 1001 is configured to support the second node to perform the step of detecting the synchronization signal at the time-frequency positions of the N second SS/PBCH blocks in S502 and S503 in FIG. 5, and the sending unit 1002 is configured to support the second.
  • the node performs the step of transmitting a synchronization signal at the time-frequency positions of the M first SS/PBCH blocks in S503 of FIG.
  • the second node may further include a processing unit 1003, where the processing unit 1003 is configured to support the second node to perform the step of parsing the synchronization signal configuration information, and/or other technical processes described herein.
  • FIG. 11 is a schematic diagram showing a possible logical structure of a second node involved in the foregoing embodiment provided by an embodiment of the present application.
  • the second node includes a memory 1101 and a processor 1102 for storing codes and data of the second node.
  • the processor 1102 is configured to perform control management on the action of the second node, for example, the processor 1102 is configured to support the second node to parse the synchronization signal configuration information, and/or is used in the description herein. Other processes of technology.
  • the second node may further include a communication interface 1103 and a bus 1104.
  • the processor 1102, the communication interface 1103, and the memory 1101 are connected to each other through a bus 1104.
  • the communication interface 1103 is configured to support the second node to perform communication.
  • the processor 1102 can be a central processing unit, a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a transistor logic device, a hardware component, or any combination thereof. It is possible to implement or carry out the various illustrative logical blocks, modules and circuits described in connection with the present disclosure.
  • the processor may also be a combination of computing functions, for example, including one or more microprocessor combinations, combinations of digital signal processors and microprocessors, and the like.
  • the bus 1104 may be a Peripheral Component Interconnect Standard (PCI) bus or an Extended Industry Standard Architecture (EISA) bus or the like.
  • PCI Peripheral Component Interconnect Standard
  • EISA Extended Industry Standard Architecture
  • a readable storage medium is further provided, where the computer-executable instructions are stored in a readable storage medium, when a device (which may be a single chip microcomputer, a chip, etc.) or a processor executes the method provided in FIG. Part or all of the steps of the first node in the synchronization signal configuration method.
  • the aforementioned readable storage medium may include various media that can store program codes, such as a USB flash drive, a removable hard disk, a read only memory, a random access memory, a magnetic disk, or an optical disk.
  • a readable storage medium is further provided, where the computer-executable instructions are stored in a readable storage medium, when a device (which may be a single chip microcomputer, a chip, etc.) or a processor executes the method provided in FIG. Part or all of the steps of the second node in the synchronization signal configuration method.
  • the aforementioned readable storage medium may include various media that can store program codes, such as a USB flash drive, a removable hard disk, a read only memory, a random access memory, a magnetic disk, or an optical disk.
  • a computer program product comprising computer executed instructions stored in a computer readable storage medium; at least one processor of the device may be Reading the storage medium reads the computer execution instructions, and the at least one processor executing the computer execution instructions causes the apparatus to implement some or all of the steps of the first node in the synchronization signal configuration method provided in FIG.
  • a computer program product comprising computer executed instructions stored in a computer readable storage medium; at least one processor of the device may be Reading the storage medium reads the computer execution instructions, and the at least one processor executing the computer execution instructions causes the apparatus to implement some or all of the steps of the second node in the synchronization signal configuration method provided in FIG.
  • a communication system comprising a plurality of nodes, the plurality of devices comprising a first node and a second node, the first node being a superior node of the second node.
  • the first node may be the first node provided in FIG. 8 or FIG. 9 and used to perform the step of the first node in the synchronization signal configuration method provided in FIG. 5; and/or the second node may be FIG. Or the second node provided in FIG. 11 and used to perform the step of the second node in the synchronization signal configuration method provided in FIG. 5.
  • the first node is a superior node of the second node, and the synchronization information configuration information is sent to the second node by using the first node, where the synchronization signal configuration information is used to indicate that the time and frequency positions of the M first synchronization signals are sent, And N second synchronization signal time-frequency positions, so that when the second node receives the synchronization signal configuration information, the synchronization signal can be sent according to the synchronization signal configuration information, and the synchronization signals of other nodes are detected, so that other nodes can be made at the M
  • the first synchronization signal detects the synchronization signal of the second node at the time-frequency position
  • the second node detects the synchronization signals of the other nodes at the time-frequency positions of the N second synchronization signals, thereby realizing mutual discovery between the relay nodes, and also
  • the relay node can be prevented from detecting the time-frequency position of each synchronization signal in the set of time-frequency locations of the candidate synchronization signals,

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computer Security & Cryptography (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

本申请提供一种同步信号配置方法及装置，涉及通信技术领域，用于降低中继节点间相互发现的资源和时间开销。所述方法应用于包括第一节点和第二节点的中继网络中，所述第一节点为所述第二节点的上级节点，包括：所述第一节点向所述第二节点发送同步信号配置信息，所述同步信号配置信息用于指示候选同步信号时频位置集合中的M个第一同步信号时频位置和N个第二同步信号时频位置；其中，所述第一同步信号时频位置用于所述第二节点发送第一同步信号，所述第二同步信号时频位置用于所述第二节点接收或检测第二同步信号，所述候选同步信号时频位置集合包括W个同步信号时频位置，W≥(M+N)。

Description

一种同步信号配置方法及装置
本申请要求于2018年01月30日提交中国专利局、申请号为201810091604.X、申请名称为“一种同步信号配置方法及装置”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
本申请实施例涉及通信技术领域，尤其涉及一种同步信号配置方法及装置。
背景技术
新一代无线(new radio，NR)通信系统中主要使用高频电磁波进行通信，高频电磁波具有绕射能力差和传播衰减严重等缺点，因此会造成通信网络中存在覆盖盲区的问题，通过引入具有无线回传链路的中继传输接收点(relaying transmission and reception point，rTRP)，可以解决通信网络中覆盖盲区的问题，中继传输接收点可以称为中继节点。
在NR通信系统一体化接入回传链路(integrated access and backhaul，IAB)的多跳多连接的中继网络中，一个中继节点可以为另一个中继节点提供服务，即一个中继节点可以存在上级节点和下级节点。比如，在图1所示的中继网络中，rTRP1可以为rTRP2提供服务，基站为rTRP1的上级节点，rTRP2为rTRP1的下级节点。当一个区域内有多个中继节点时，为了方便各中继节点的路由切换或多连接建立，多个中继节点应具有相互发现的能力。
现有技术中，用户设备(user equipment，UE)可以通过检测同步信号发现一个或者多个网络设备。比如，NR系统的网络设备在5ms内发送最多L个同步信号块/物理广播信道块(SS/PBCH block，SSB)，L个SSB可以称为一个同步信号段集合(SSB burst set)，UE可检测L个SSB进行同步和网络设备发现，SSB burst set会周期性的重复，且周期可配置。当使用高频段载波(比如，频率在6GHz以上的载波)时，L＝64，即UE需要对64个可能的SSB位置全部进行检测来发现网络设备。
上述方法中需要的资源和时间开销较大，而在多跳多连接的中继网络中，中继节点在正常工作时，需要不断的向下级节点发送信号，并接收来自上级节点的信号，因此很难协调足够的资源按照上述方法进行SSB检测来实现中继节点间的相互发现。
发明内容
本申请的实施例提供一种同步信号配置方法及装置，用于降低中继节点间相互发现的资源和时间开销。
为达到上述目的，本申请的实施例采用如下技术方案：
第一方面，提供一种同步信号配置方法，应用于包括第一节点和第二节点的中继网络中，第一节点为第二节点的上级节点，该方法包括：第一节点向第二节点发送同步信号配置信息，同步信号配置信息用于指示候选同步信号时频位置集合中的M个第一同步信号时频位置和N个第二同步信号时频位置；其中，第一同步信号时频位置用于第二节点发送第一同步信号，第二同步信号时频位置用于第二节点接收或检测第二 同步信号，候选同步信号位置集合包括W个同步信号时频位置，W≥(M+N)。
例如，在新一代无线(new radio，NR)通信系统中，主同步信号(PSS)，辅同步信号(SSS)，以及广播信道在连续的四个OFDM符号上发送，被称为一个同步信号/物理广播块(SS/PBCH block)。其中，第一方面所提供的配置方法被应用于NR系统时，包括对整个SS/PBCH block的发送和接收配置。
第二方面，提供一种同步信号配置方法，应用于包括第一节点和第二节点的中继网络中，第一节点为第二节点的上级节点，该方法包括：第二节点接收来自第一节点的同步信号配置信息，同步信号配置信息用于指示候选同步信号集合中的M个第一同步信号时频位置和N个第二同步信号时频位置，其中，候选同步信号集合包括W个同步信号，W≥(M+N)；第二节点根据同步信号配置信息在M个第一同步信号时频位置发送第一同步信号，在第二同步信号时频位置接收或检测第二同步信号。
上述技术方案中，通过第一节点向第二节点发送同步信号配置信息，同步信号配置信息用于指示第二节点发送M个第一同步信号的时频位置、以及用于指示第二节点检测N个第二同步信号的时频位置，从而在第二节点接收到同步信号配置信息时，可以根据同步信号配置信息发送第一同步信号，并检测其他节点的第二同步信号，从而可以使其他节点在该M个第一同步信号时频位置检测到第二节点的第一同步信号，第二节点在N个第二同步信号时频位置检测到其他节点的第二同步信号，进而实现中继节点间的相互发现，同时也可以避免中继节点对候选同步信号时频位置集合中的每个同步信号时频位置进行检测，从而减小了中继节点间相互发现的资源和时间开销。
在第一方面或第二方面的一种可能的实现方式中，同步信号配置信息还用于指示M个第一同步信号中的H个第一同步信号的发射波束信息，M≥H。可选的，第一节点向第二节点发送用于指示M个第一同步信号中的H个第一同步信号的发射波束信息的指示信息。上述可能的实现方式中，通过指示第一同步信号的发射波束信息，可以进一步降低中继节点进行波束扫描的时间开销。
在第一方面或第二方面的一种可能的实现方式中，H个第一同步信号中的至少一个第一同步信号的发射波束信息与第二节点的一个指定发射波束信息相关联。比如，指定发射波束信息可以为第二节点已配置的同步信号或参考信号时的发射波束信息。
在第一方面或第二方面的一种可能的实现方式中，H个第一同步信号中的至少一个第一同步信号与第二节点的一个指定发送信号相关联。比如，与第二节点已配置的同步信号或者参考信号相关联，即将已配置的同步信号或参考信号，复制至该至少一个第一同步信号时频位置。
在第一方面或第二方面的一种可能的实现方式中，中继网络还包括第三节点，H个第一同步信号中的至少一个第一同步信号的发射波束信息与第三节点的指定发射波束信息相关联。
在第一方面或第二方面的一种可能的实现方式中，该至少一个第一同步信号的发射波束信息与第二节点接收第三节点的一个指定发送信号的接收波束信息相关联。其中，至少一个第一同步信号可以包括一个或者多个第一同步信号，当其包括多个第一同步信号时，多个第一同步信号可以对应一个波束，也可以对应多个波束，即接收波束信息可以包括一个或者多个波束。
在第一方面或第二方面的一种可能的实现方式中，中继网络还包括第三节点，H个第一同步信号中的至少一个第一同步信号与第三节点的一个指定发送信号相关联。其中，第三节点的指定发送信号可以由第二节点向第一节点上报。
在第一方面或第二方面的一种可能的实现方式中，(M-H)个第一同步信号中的至少一个第一同步信号的发射波束信息可以由第二节点自定义。
在第一方面或第二方面的一种可能的实现方式中，H个第一同步信号中的至少一个第一同步信号的发射波束信息与第一节点的一个指定发射波束信息相关联。
在第一方面或第二方面的一种可能的实现方式中，H个第一同步信号中的至少一个第一同步信号与第一节点的一个指定发送信号相关联。
在第一方面或第二方面的一种可能的实现方式中，同步信号配置信息还用于指示第二节点接收N个第二同步信号中的K个第二同步信号时的接收波束信息。上述可能的实现方式中，通过指示第二同步信号的发射波束信息，可以进一步降低中继节点进行波束扫描的时间开销。
在第一方面或第二方面的一种可能的实现方式中，K个第二同步信号中的至少一个第二同步信号的接收波束信息与第二节点的一个指定发射波束信息相关联。比如，指定发射波束信息可以为第二节点已配置的向其他节点发送同步信号或参考信号时的发射波束信息。
在第一方面或第二方面的一种可能的实现方式中，K个第二同步信号中的至少一个第二同步信号与第二节点的一个指定发送信号相关联。其中，指定发送信号可以是第二节点已配置的同步信号或者参考信号。
在第一方面或第二方面的一种可能的实现方式中，中继网络还包括第三节点，K个第二同步信号中的至少一个第二同步信号的接收波束信息与第二节点接收第三节点的一个指定发送信号的接收波束信息相关联。其中，第一节点可以指示第二节点在该至少一个第二同步信号上检测第三节点的同步信号或者参考信号，且使用的接收波束信息可以是已配置的与第三节点通信时的接收波束信息。另外，至少一个第二同步信号可以包括一个或者多个第二同步信号，当其包括多个第二同步信号时，多个第二同步信号可以对应一个波束，也可以对应多个波束，即接收波束信息可以包括一个或者多个波束。
在第一方面或第二方面的一种可能的实现方式中，K个第二同步信号中的至少一个第二同步信号的接收波束信息与第一节点的一个指定发射波束信息相关联。
在第一方面或第二方面的一种可能的实现方式中，K个第二同步信号中的至少一个第二同步信号与第一节点的一个指定发送信号相关联。
在第一方面或第二方面的一种可能的实现方式中，中继网络还包括第四节点，第一节点可以指示第二节点在至少一个第二同步信号上检测第四信号的同步信号，第一节点可以不指示至少一个第二同步信号的接收波束信息。
在第一方面或第二方面的一种可能的实现方式中，当第二节点处于移动过程时，第二节点需要持续扫描，以进行无线资源管理和切换，第一节点可以通过配置令第二节点的扫描波束与其发送波束不发生冲突，比如，限制移动第二节点的扫描同步信号时频位置集合，即配置第二节点不需要扫描其自身发送的同步信号时频位置，从而实 现移动第二节点的同步信号配置，使其与网络中的其他中继节点能够相互发现。
在第一方面或第二方面的一种可能的实现方式中，还可以通过配置中继网络包括的中继节点的参考信号，实现中继节点间的相互发现。比如，第一节点可以配置第二节点发送第一参考信号的位置，以及配置第二节点检测其他中继节点的第二参考信号的位置，以使第二节点可以在对应的位置上发送第一参考信号，以及检测其他中继节点的第二参考信号，来实现中继节点间的相互发现。具体的，通过配置中继网络包括的中继节点的参考信号，实现中继节点间的相互发现的过程，与上述配置中继节点的同步信号的过程类似，具体参见上述描述，本申请实施例在此不再赘述。
在本申请的又一方面，提供了一种第一节点，第一节点用于实现上述第一方面或第一方面的任一种可能的实现方式所提供的同步信号配置方法中的功能，所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个上述功能相应的单元。
在一种可能的实现方式中，第一节点的结构中包括处理器和存储器，该存储器中存储代码和数据，该存储器与处理器耦合，该处理器被配置为支持第一节点执行上述第一方面或第一方面的任一种可能的实现方式所提供的同步信号配置方法。可选的，第一节点还可以包括通信接口和总线，该通信接口通过总线与存储器与处理器连接。
在本申请的又一方面，提供了一种第二节点，第二节点用于实现上述第二方面或第二方面的任一种可能的实现方式所提供的同步信号配置方法中的功能，所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个上述功能相应的单元。
在一种可能的实现方式中，第二节点的结构中包括处理器和存储器，该存储器中存储代码和数据，该存储器与处理器耦合，该处理器被配置为支持第二节点执行上述第二方面或第二方面的任一种可能的实现方式所提供的同步信号配置方法。可选的，第二节点还可以包括通信接口和总线，该通信接口通过总线与存储器与处理器连接。
本申请的又一方面，提供了一种计算机可读存储介质，所述计算机可读存储介质中存储有指令，当其在计算机上运行时，使得该计算机执行上述第一方面或第一方面的任一种可能的实现方式所提供的同步信号配置方法。
本申请的又一方面，提供了一种计算机可读存储介质，所述计算机可读存储介质中存储有指令，当其在计算机上运行时，使得该计算机执行上述第二方面或第二方面的任一种可能的实现方式所提供的同步信号配置方法。
本申请的又一方面，提供了一种包含指令的计算机程序产品，当其在计算机上运行时，使得该计算机执行上述第一方面或第一方面的任一种可能的实现方式所提供的同步信号配置方法。
本申请的又一方面，提供了一种包含指令的计算机程序产品，当其在计算机上运行时，使得该计算机执行上述第二方面或第二方面的任一种可能的实现方式所提供的同步信号配置方法。
本申请的又一方面，提供一种通信系统，该通信系统包括第一节点和第二节点，第一节点为第二节点的上级节点。其中，第一节点用于执行上述第一方面或第一方面的任一种可能的实现方式所提供的同步信号配置方法；和/或，第二节点用于执行上述 第二方面或第二方面的任一种可能的实现方式所提供的同步信号配置方法。
可以理解地，上述提供的任一种同步信号配置方法的装置、计算机存储介质或者计算机程序产品均用于执行上文所提供的对应的方法，因此，其所能达到的有益效果可参考上文所提供的对应的方法中的有益效果，此处不再赘述。
附图说明
图1为一种中继网络的结构示意图；
图2为本申请实施例提供的一种通信系统的结构示意图；
图3为本申请实施例提供的一种基站/中继节点的结构示意图；
图4为本申请实施例提供的一种节点加入中继网络的示意图；
图5为本申请实施例提供的一种同步信号配置方法的流程示意图；
图6为本申请实施例提供的一种检测同步信号的示意图；
图7为本申请实施例提供的一种扫描波束的示意图；
图8为本申请实施例提供的一种第一节点的结构示意图；
图9为本申请实施例提供的另一种第一节点的结构示意图；
图10为本申请实施例提供的一种第二节点的结构示意图；
图11为本申请实施例提供的另一种第二节点的结构示意图。
具体实施方式
在介绍本申请实施例之前，首先对本申请实施例涉及的技术名词进行介绍说明。
高频载波和低频载波：通信系统中的可用频段可以被划分为两个频段，例如，以6GHz为划分标准，即低于6GHz的频段和高于6GHz的频段，将低于6GHz的频段中的载波可以称为低频载波，将高于6GHz的频段中的载波可以称为高频载波，6GHz可以被划分在高频载波的范围，也可以被划分在低频载波的范围。应理解，本申请实施例中的低频载波和高频载波的频段高低是相对而言，还可使用其他标准划分低频载波和高频载波。一个载波可以包括多个波束(beam)，该多个波束的覆盖范围位于该载波的覆盖范围之内，即该多个波束的覆盖范围是该载波的覆盖范围的子集，该载波可以是高频载波，也可以是低频载波。
波束(beam)：波束是一种通信资源。波束可以是宽波束，或者窄波束，或者其他类型波束。形成波束的技术可以是波束成形技术或者其他技术手段。波束成形技术可以具体为数字波束成形技术，模拟波束成形技术，混合数字/模拟波束成形技术。不同的波束可以认为是不同的资源。通过不同的波束可以发送相同的信息或者不同的信息。可选的，可以将具有相同或者类似的通信特征的多个波束视为是一个波束。一个波束内可以包括一个或多个天线端口，用于传输数据信道、控制信道和探测信号等。例如，发射波束可以是指信号经天线发射出去后在空间不同方向上形成的信号强度的分布，接收波束可以是指从天线上接收到的无线信号在空间不同方向上的信号强度分布。可以理解的是，形成一个波束的一个或多个天线端口也可以看作是一个天线端口集。波束在协议中的体现还是可以空域滤波器(spatial filter)。波束在协议中的体现还可以是天线端口准共址(antenna port QCL)关系，空域接收参数(spatial Rx parameter)。波束在协议中的表示可以是各种信号的编号，例如信道状态信息-参考信号(channel state information-reference signal，CSI-RS)的编号，同步信号/物理广播 信道(synchronization signal/physical broadcast channel，SS/PBCH)的编号，探测参考信号(sounding reference signal，SRS)的编号，跟踪参考信号(tracking reference signal，TRS)的编号等。
Two antenna ports are said to be quasi co-located if the large-scale properties of the channel over which a symbol on one antenna port is conveyed can be inferred from the channel over which a symbol on the other antenna port is conveyed.The large-scale properties include one or more of delay spread,Doppler spread,Doppler shift,average gain,average delay,and spatial Rx parameters.
SS/PBCH block也可以写为SS block/PBCH block，对应中文翻译可以为同步信号/物理广播信道块。网络侧发送的用于小区搜索的信号可以由主同步信号、辅同步信号和物理广播信道组成。
目前，高频载波可以应用于多个通信系统中，比如，长期演进(long term evolution，LTE)通信系统、新一代无线(new radio，NR)通信系统或未来可能出现的。高频载波具有绕射能力差和传播衰减严重等缺点，会造成通信网络中存在覆盖盲区。限于部署成本等因素，运营商难以仅依赖有线传输接收点(transmission and reception point，TRP)解决覆盖盲区问题，因此有必要引入具有无线回传链路的中继TRP(relaying TRP，rTRP)。应注意，NR的中继节点还没有正式的名称，本申请使用名称仅为一种示例。
图2为本申请实施例提供的一种通信系统的结构示意图，该通信系统也可以称为中继网络，参见图2，该通信系统包括基站201、中继节点202和用户设备203。其中，基站201可以是演进的节点B(eNodeB)、节点B(NodeB)、宏基站、接入点设备和传输接收节点(TRP)等等，为便于描述，本申请实施例中统称为基站。中继节点202可以是中继设备、中继设备站、接入点设备、微基站、TRP和rTRP等等，为便于描述，本申请实施例中统称为中继节点。用户设备203可以是手持设备、车载设备、可穿戴设备、计算设备、移动站、移动台、无线通信设备和终端等等，为便于描述，本申请实施例中统称为用户设备。
其中，基站201与中继节点202之间、以及中继节点202与中继节点202之间的链路可以称为回传链路(backhual link，BL)，中继节点202与用户设备203之间的链路可以称为接入链路(access link，AL)。
如图3所示，为本申请实施例提供的一种基站/中继节点的结构示意图，该基站/中继节点可以包括基带处理单元(building baseband unit，BBU)301和远端射频模块(remote radio unit，RRU)302，RRU 302和天馈系统303连接，BBU 301和RRU 302可以根据需要拆开使用。其中，图3所示的结构可以是基站的结构，也可以是中继节点的结构。BBU 301用于实现整个基站或中继节点的操作维护，实现信令处理、无线资源管理、以及到分组核心网的传输接口，实现物理层、介质接入控制层、L3信令、操作维护主控功能。RRU 302用于实现基带信号与射频信号之间的转换，实现无线接收信号的解调和发送信号的调制和功率放大等。天馈系统303可包括多个天线，用于实现无线空口信号的接收和发送。本领域人员可以理解的是，在具体实现过程中，基站/中继节点还可以采用其他通用的硬件结构，而并非仅仅局限于图3所示的硬件结构。
在通信系统中，节点可以通过扫描同步信号发现其余节点。在低频载波中，节点发现需实现时频同步；而在高频载波中，节点发现除了需实现时频同步，还需要实现波束对准。为了实现波束对准，收发端的节点均需要进行波束扫描，例如，发端一般采用最多可达64个SSB进行波束扫描，假设发端采用32个波束扫描，而收端采用8个波束进行接收波束扫描，则一共需要256次检测才能完成波束扫描，资源和时间开销较大。对于需要服务UE的中继节点来说，这样的开销可能是不能接受的。
此外，中继节点通常为半双工传输，中继节点在检测其余节点的信号(包括同步信号，参考信号等)时，不能向下级节点发送信号，而由于中继节点在工作时需要持续向下级节点发送各种信号，因此，一个正常工作的中继节点难以进行大开销的节点发现与检测。进一步的，为简化UE检测，各中继节点可能同步发送SSB，这进一步限制了中继节点检测其余节点的能力。
因此，正常工作的中继节点，由于半双工约束等中继节点特性，很难协调足够的资源与时间进行其余节点的发现与扫描。但是，当中继节点为新入网节点或空闲节点时(以新入网节点或空闲节点为例，但不限于新节点或空闲节点)，可以提供充足的资源与时间进行邻近节点扫描。
如图4所示，这里以一个新节点接入及后续过程为例，说明节点间的相互发现及其应用。图4中B1存在着多个下级节点(比如，R1、R2、R3和R4)，这里以R4的角度为例进行说明，R4接入了B1，且与其余中继节点相互可见，此处的节点间相互可见可以指的是它们可以测量对方的参考信号或同步信号。
在图4中，R1-R4均为B1的下级中继节点，但本申请不限制进行相互发现的中继节点属于同一个donor节点。其中，中继网络中的donor节点可以被理解为为下级节点提供服务的节点。
如图4所示，一个新节点(R4)加入了一个区域并开机；开机后，R4进行扫描，发现了其余节点(比如B1及R1～R3)；随后，R4接入节点B1；在接入后，R4会向B1报告其扫描结果，或B1会配置R4进行进一步的扫描，例如，为R4指定若干目标节点ID及SSB索引/或其余参考资源令其进行扫描，而后B1会配置R4再次上报扫描结果。值得注意的是，此扫描过程可重用已有的RRM(radio resource management)过程；之后，B1通过配置R4的同步信号或参考信号，并配置其余节点的测量窗口，达到节点间的相互发现；在相互发现后，根据测量结果等因素，中继节点可能进行路由切换，例如，图4中R3由R2切换至R4。
图5为本申请实施例提供的一种同步信号配置方法的流程示意图，该方法应用于包括第一节点和第二节点的中继网络中，参见图5，该方法包括以下几个步骤。
S501：第一节点向第二节点发送同步信号配置信息，同步信号配置信息用于指示候选同步信号时频位置集合中的M个第一同步信号时频位置和N个第二同步信号时频位置；其中，第一同步信号时频位置用于第二节点发送同步信号，第二同步信号时频位置用于第二节点接收或检测同步信号。
配置信息可以通过RRC(radio resource control)层信令或MAC(medium access control)层信令MAC CE(MAC control element)承载，也可能通过高层信令(如LTE中的X2接口信令和NR中的Xn接口信令)等发送，本申请对发送信息的信令不做限定。
其中，第一节点可以为中继网络中的基站，也可以为中继网络中的中继节点，比如，第一节点可以图2中的基站201，也可以为图2中的中继节点202。第二节点可以为中继网络中的中继节点，且第一节点为第二节点的上级节点，比如，当第一节点为图2中的基站201时，第二节点可以为图2中的任一中继节点202，当第一节点为图2中的某一中继节点202时，第二节点可以为该某一中继节点202至用户设备203间的其他中继节点202。
候选同步信号位置集合包括W个同步信号时频位置，W为正整数。在NR系统中，主同步信号(PSS)，辅同步信号(SSS)，以及广播信道在连续的四个OFDM符号上发送，被称为一个SS/PBCH block。上述配置方法可被应用于NR系统时，包括对整个SS/PBCH block的发送或接收配置。相应的，在NR系统中上述S501可以为：第一节点向第二节点发送同步信号配置信息，同步信号配置信息用于指示候选同步信号/物理广播信道块(SS/PBCH block)集合中的M个第一SS/PBCH block时频位置和N个第二SS/PBCH block时频位置。
在NR中，多个同步信号在5ms(半帧)内发送，例如，在低频，4个或8个同步信号在5ms内发送，而在高频，64个同步信号在5ms内发送完毕，多个同时发送的同步信号被称为一个SSB burst set，SSB burst set以周期方式重复发送，可选周期可以是5ms，20ms等值。显然，第二节点发送SSB burst set的5ms的起始位置(帧号和半帧位置)，以及发送周期均可由第一节点配置，或者第二节点配置后上报第一节点，或者是两种的组合，例如，SSB发送的起始位置由第一节点配置，而SSB发送的周期则由第二节点决策并上报至第一节点。
在本申请中，W可以表示5ms内的SSB候选位置数目(例如，在高频W＝64)。值得注意的是，基站或中继节点并不要求在所有64个SSB候选位置全部发送同步信号，而可以选择在仅在一部分同步信号位置进行发送，从而保留其余同步信号位置进行数据传输，或者接收其余节点同步信号。
当本申请应用于CSI-RS、SRS等参考信号或某种新定义的参考信号，如发现信号时，参考信号的发送与接收时频位置不一定在W个预定义的位置中选择，而是通过另外的方式确定，例如，第一节点直接为参考信号的发送或接收资源配置时频位置，周期等。
当本申请应用于同步信号时，在另外一种可能的实现中，接收SSB和发送SSB可以不位于同一个SSB burst set内，例如，第二节点在一个SSB的集合内(64个位置)进行发送，在另一个SSB集合内(64个位置)进行接收，并且两个SSB集合可以具有不同的周期。本发明方案也可仅用于部分SSB集合，例如，在部分SSB集合进行本发明所述的SSB发送与接收，而另外的SSB集合仅进行SSB发送，而在另外部分SSB集合仅进行SSB的接收或检测。
综上，除了本申请所述时频资源选择方法，参考信号接收与发送的时频资源配置可通过已有技术解决，本申请不对其做任何限定。本申请主要考虑当配置了同步信号或参考信号的发送与接收后，波束或QCL的指示方法。
若本申请应用于高频，则QCL主要是空间QCL，即NR中的type D QCL。
需要说明的是，本申请实施例提供的方法还可以应用于其他通信系统，或者其他 发现信号中，后续以NR系统中的同步信号为例进行说明，但其并不对本申请实施例构成限定。
在NR系统中，当系统使用低频载波时，候选SS/PBCH block集合包括的W个SS/PBCH block的数量最大可以为4或8(即W＝4或W＝8)，当系统使用高频载波时，W个SS/PBCH block的数量最大可以为64(即W＝64)。其中，候选SS/PBCH block集合也可以称为SS/PBCH block burst set(SS/PBCH block段集合)，SS/PBCH block burst set可以周期性的重复，其周期可配置。
W≥(M+N)，即W可以大于M与N之和，或者W可以等于M与N之和，M和N可以均为整数。当W大于M与N之和时，W个SS/PBCH block中存在(W-M-N)个未被配置的SS/PBCH block，该(W-M-N)个未被配置的SS/PBCH block可以称为空白SS/PBCH block(或保留SS/PBCH block)；当W等于M与N之和时，W个SS/PBCH block全部被配置。
再者，时频位置可以包括时域位置和频域位置。比如，时域位置可以是时间轴中的符号(symbol)位置，该符号可以为OFDM符号，频域位置可以是频率轴中的子载波位置，子载波可以通过子载波间隔和中心频率进行表示，或者通过子载波标识等进行表示。在NR中，同步信号的时频位置可以根据SS/PBCH block的索引确定。
具体的，第一节点可以是多个中继节点的上级节点(或者多个中继节点可以为第一节点的下级节点)，第一节点可以向该多个中继节点中的每个中继节点发送同步信号配置信息，第二节点为该多个中继节点中的任一中继节点。第一节点可以向第二节点发送同步信号配置信息，用于配置第二节点发送同步信号的时频位置，以及配置第二节点检测其他节点的同步信号的时频位置。若第一节点也是中继节点，则第一节点发给第二节点的配置信息可能由第一节点的上级节点或donor节点提供。在这里，donor节点可以是指具有有线连接的基站。
示例性的，假设该多个中继节点可以包括R1～R4，候选SS/PBCH block集合包括8个SS/PBCH block(W＝8)，发送给每个中继节点的同步信号配置信息中指示了7个第一SS/PBCH block(M＝7)时频位置、1个第二SS/PBCH block(N＝1)时频位置，该多个中继节点中每个中继节点发送同步信号的时频位置和检测同步信号的时频位置如图6所示。
图6中以每个中继节点在一个第二SS/PBCH block位置检测到其他多个中继节点的同步信号为例进行说明。比如，R1用于检测同步信号的第二SS/PBCH block位置为第五个SS/PBCH block，R1在第五个SS/PBCH block位置检测R2～R4的同步信号；R2用于检测同步信号的第二SS/PBCH block位置为第六个SS/PBCH block，R2在第六个SS/PBCH block上检测到R1、R3和R4的同步信号；R3用于检测同步信号的第二SS/PBCH block位置为第七个SS/PBCH block，R3在第七个SS/PBCH block上检测到R1、R2和R4的同步信号；R4用于检测同步信号的第二SS/PBCH block为第八个SS/PBCH block位置，R4在第八个SS/PBCH block上检测到R1～R3的同步信号。
由上述内容可知，当第一节点向其下级的多个中继节点发送同步信号配置信息时，第一节点可以指示一个中继节点在一个或者多个SS/PBCH block位置检测其他中继节点的同步信号，同时指示其他中继节点在对应SS/PBCH block位置上发送同步信号， 从而可以使一个中继节点同时检测到其他多个中继节点的同步信号，从而尽可能的降低中继节点检测SS/PBCH block的资源和时间开销，实现低开销的中继节点间的相互发现。
当然，第一节点也可以指示一个中继节点在不同的一个或者多个SS/PBCH block位置上检测不同的中继节点的同步信号，同时指示不同的中继节点在相应的SS/PBCH block的位置发送同步信号，从而使一个中继节点通过多次检测不同的SS/PBCH block，得到多个其他中继节点的同步信号，这样与现有技术相比，也可以降低中继节点间相互发现的资源和时间开销。指示多个不同中继节点检测的SS/PBCH block和发送的SS/PBCH block之间的具体关系，可以为上述描述的任一种，或者其他可能的实现方式，本申请实施例对此不作限定。
在实际应用中，同步信号配置信息可以仅用于配置第二节点发送同步信号(即第一SS/PBCH block)的时频位置，或者仅用于配置第二节点检测其他节点的同步信号(即第二SS/PBCH block)的时频位置，或者同时用于配置第一SS/PBCH block的时频位置和第二SS/PBCH block的时频位置。也即是，M个第一SS/PBCH block中M的取值可以为大于等于0的整数，N个第二SS/PBCH block中N的取值也可以为大于等于0的整数，本申请实施例对此不做具体限定。此外，同步信号配置信息中还可以包括候选SS/PBCH block集合的起始位置(比如，帧号及半帧号)、周期等信息。
进一步的，当第一节点为基站时，同步信号配置信息可以由第一节点生成；当第一节点为中继节点时，同步信号配置信息可以由第一节点生成，也可以由第一节点的上级节点生成且将其发送给第一节点，本申请实施例对此不做具体限定。
S502：第二节点接收来自第一节点的同步信号配置信息。
其中，S502中的同步信号配置信息与S501中的同步信号配置信息一致，具体参见S401中的描述，本申请实施例在此不再赘述。
S503：第二节点根据同步信号配置信息在M个第一同步信号时频位置发送同步信号，在N个第二同步信号时频位置接收或检测同步信号。
在NR系统中，M个第一同步信号时频位置可以为M个第一SS/PBCH block的位置，N个第二同步信号时频位置可以为N个第二SS/PBCH block的位置。
当第二节点接收到同步信号配置信息后，第二节点可以根据同步信号配置信息确定M个第一SS/PBCH block的时频位置，以及确定N个第二SS/PBCH block的时频位置，并在M个第一SS/PBCH block的时频位置上发送同步信号，在N各第二SS/PBCH block的时频位置上检测其他节点的同步信号。
可选的，当N＝0，即同步信号配置信息即用于配置M个第一SS/PBCH block的时频位置时，第二节点可以根据同步信号配置信息确定M个第一SS/PBCH block的时频位置，并在M个第一SS/PBCH block的时频位置上发送同步信号。当M＝0，即同步信号配置信息即用于配置N个第二SS/PBCH block的时频位置时，第二节点可以根据同步信号配置信息确定N个第二SS/PBCH block的时频位置，并在N个第二SS/PBCH block的时频位置上检测其他节点的同步信号。
进一步的，在S401之前，该方法还可以包括：第二节点向第一节点发送上报信息，该上报信号用于指示第二节点的发送能力，比如，第二节点将其所需的第一SS/PBCH  block的数量上报给第一节点，从而第一节点可以根据第二节点上报的第一SS/PBCH block的数量，确定同步信号配置信息中的M个第一SS/PBCH block。其中，第二节点上报的第一SS/PBCH block的数量可以与M相等，也可以与M不相等，本申请实施例对此不做具体限定。
在本申请实施例中，第一节点为第二节点的上级节点，通过第一节点向第二节点发送同步信号配置信息，同步信号配置信息用于指示发送同步信号的M个第一SS/PBCH block的时频位置、以及用于指示检测同步信号的N个第二SS/PBCH block的时频位置，从而在第二节点接收到同步信号配置信息时，可以根据同步信号配置信息发送同步信号，并检测其他节点的同步信号，从而可以使其他节点在该M个第一SS/PBCH block的时频位置上检测到第二节点的同步信号，第二节点在N个第二SS/PBCH block的时频位置检测到其他节点的同步信号，进而实现中继节点间的相互发现，同时也可以避免中继节点对候选SS/PBCH block集合中的每个SS/PBCH block进行检测，从而减小了中继节点间相互发现的资源和时间开销。
进一步的，同步信号配置信息还可以用于指示同步信号时频位置的波束。其中，在下文的第一个实施例中，同步信号配置信息可以用于指示第一同步信号的发射波束信息；在下文的第二个实施例中，同步信号配置信息可以用于指示第二同步信号的接收波束信息，具体如下所示。
第一个实施例：同步信号配置信息还用于指示M个第一SS/PBCH block中的H个第一SS/PBCH block的波束信息，M≥H(即同步信号配置信息还用于指示M个第一同步信号中的H个第一同步信号的波束信息)。
可选的，第一节点也可以通过其他的消息，向第二节点指示H个第一SS/PBCH block的波束信息，比如，第一节点可以向第二节点发送波束指示信息，波束指示信息用于指示M个第一SS/PBCH block中的H个第一SS/PBCH block的波束信息，本申请实施例对第一节点通过一个或者多个消息指示H个第一SS/PBCH block的波束信息不作具体限定。
其中，当M＝H时，M个第一SS/PBCH block的波束信息已全部被配置。相应的，当第二节点在M个第一SS/PBCH block的时频位置上发送同步信号时，第二节点可以在M个第一SS/PBCH block的时频位置上使用配置的波束信息发送同步信号。
当M＞H时，H个第一SS/PBCH block的波束信息已被配置，(M-H)个第一SS/PBCH block的波束信息未被配置。可选的，该(M-H)个第一SS/PBCH block的波束信息可以由第二节点自定义，即第二节点可以自行选择该(M-H)个第一SS/PBCH block的波束信息，用于服务其下属UE或中继节点；或者第二节点保留该(M-H)个第一SS/PBCH block，不在该(M-H)个第一SS/PBCH block上发送同步信号，比如，将该(M-H)个第一SS/PBCH block的位置设置为零或者进行数据调度。或者，该(M-H)个第一SS/PBCH block中的一部分第一SS/PBCH block的波束信息可以由第二节点自定义，另一部分第一SS/PBCH block可以保留。相应的，当该(M-H)个第一SS/PBCH block的波束信息存在由第二节点自定义的第一SS/PBCH block时，第二节点可以选择自定义部分第一SS/PBCH block的波束信息，并使用选择的波束信息在自定义的第一SS/PBCH block的时频资源上发送同步信号，同时在H个第一SS/PBCH block的时频 位置上使用配置的波束信息发送同步信号。可选的，第二节点可能向第一节点上报其需要的(M-H)，即第二节点上报其服务下属UE及节点需要的同步信号数目。
需要说明的是，W个SS/PBCH block可以被划分为第一SS/PBCH block、第二SS/PBCH block和保留SS/PBCH block三种类型。保留SS/PBCH block可以包括第一SS/PBCH block中未被配置波束信息的SS/PBCH block，也可以包括空白SS/PBCH block。可选的，第一SS/PBCH block还可以被划分为自定义波束信息和配置波束信息两种类型。在实际应用中，该W个SS/PBCH block还可以被能划分为其他的组合形式，本申请实施例对此不做具体限定。
在一种可能的实现方式中，H个第一SS/PBCH block中的至少一个第一SS/PBCH block的发射波束信息与第二节点的一个指定发射波束信息相关联。可选的，该至少一个第一SS/PBCH block的发射波束信息与指定发射波束信息相同或相近，或至少一个第一SS/PBCH block的发射波束信息与指定发射波束信息具有准共址(quasico-location，QCL)关系。比如，该至少一个第一SS/PBCH block的波束发射方向与指定发射波束方向相同，或者在指定发射波束方向附近。
可选的，指定发射波束信息可以是第二节点的指定同步信号的波束信息，该至少一个第一SS/PBCH block的波束信息可以与指定同步信号的波束信息相同。比如，该至少一个第一SS/PBCH block的发射波束信息与第二节点之前发送的某个第一SS/PBCH block的波束信息相同，即将某个位置的SS/PBCH block复制到该至少一个第一SS/PBCH block的位置。或者，该至少一个第一SS/PBCH block的波束可以与指定同步信号具有关于空间信息的QCL关系。
在一种可能的实现方式中，H个第一SS/PBCH block中的至少一个第一SS/PBCH block与第二节点的一个指定发送信号相关联。其中，指定发送信号可以为同步信号或者参考信号，其中，参考信号可能是CSI-RS，SRS或DMRS等。
在一种可能的实现方式中，中继网络还包括第三节点，H个第一SS/PBCH block中的至少一个第一SS/PBCH block的发射波束信息与第三节点的指定发射波束信息相关联。
在一种可能的实现方式中，中继网络还包括第三节点，H个第一SS/PBCH block中的至少一个第一SS/PBCH block的发射与第三节点相关联。
第三节点为中继节点或基站，第二节点可以接收到第三节点的某个信号，例如，第二节点可能通过小区搜索获取到第三节点的同步信号，或者第二节点被配置接收第三节点的CSI-RS。
在一种可能的实现中，第二节点向第一节点上报其小区搜索结果，搜索结果包含第二节点发现的节点列表，列表中包含第三节点。上报信息可能包含第二节点检测到的第三节点的同步信号或参考信号编号(简称为信号A)。
第一节点配置第二节点的第一同步信号的发射与第三节点相关联时，可以配置第一同步信号与信号A相关联，例如，指示第一同步信号与信号A具有QCL。
此外，第一节点在配置第二节点的第一同步信号时频位置的发射与第三节点相关联时，可以仅指示第二节点在第一同步信号时频位置发送的同步信号与第三节点关联(或将第三节点的同步信号接收位置通知给第二节点)，而不指示具体的波束信息，具 体的波束信息由第二节点自行确定。
其中，至少一个第一SS/PBCH block可以包括一个或者多个第一SS/PBCH block，当其包括多个第一SS/PBCH block时，多个第一SS/PBCH block可以对应一个波束，或者多个第一SS/PBCH block可以对应多个波束，即至少一个第一SS/PBCH block的发射波束信息可以包括一个或者多个波束。
示例性的，当第二节点在扫描过程检测到第三节点的某个同步信号(记为SSB#X)时，可以通过配置第二节点的同步信号，使第三节点发现第二节点。具体流程可以如下：第二节点在扫描中发现第三节点，或第一节点配置第二节点对第三节点进行扫描，在扫描发现第三节点后，第二节点向第一节点上报扫描结果；第一节点配置第二节点在某个第一SS/PBCH block位置(或多个第一SS/PBCH block位置)发送与第三节点的SSB#X相关联的SS/PBCH block，以便第三节点发现第一节点。此处的SSB可以为SS/PBCH block的简写。
比如，如图7所示，第二节点的接收波束方向为#Y，假设波束#Y为一个宽波束，波束#Y可以包括#Y1，#Y2，#Y3三个窄波束。基于此，第二节点发送与SSB#x相关联的SS/PBCH block可以包括以下三种情况：
(1)、直接发送波束#Y，即直接用接收波束方向发送第一SS/PBCH block；即指示一个同步信号发射与信号A具有QCL关系。
(2)、扫描发送波束#Y1，#Y2和#Y3，即第二节点可以使用波束#Y1，#Y2和#Y3发送不同的第一SS/PBCH block。比如，用于发送同步信号的第一SS/PBCH block有三个，使用#Y1发送第一个SS/PBCH block、使用#Y2发送第二个SS/PBCH block、使用#Y3发送第三个SS/PBCH block。即指示N个同步信号发射与信号A具有QCL关系，N可由第二节点上报。
(3)、发送波束#Y1，#Y2，#Y3中的最优波束，即使用这三个波束中的最优波束发送第一SS/PBCH block。此时，需要第一节点在配置了发射后为第二节点预留扫描时间，以使第二节点确定波束#Y1，#Y2，#Y3中的最优波束。即指示一个同步信号发射与信号A具有QCL关系，同时第二节点需要一定的时间进行最优波束搜索，此时间可以由协议规定，第一节点配置或第二节点决定后上报，例如，第二节点可上报发送SSB配置成功信息给第一节点，第一节点可在收到确认信息后配置其余节点接收此同步信号。
在一种可能的实现方式中，H个第一SS/PBCH block中的至少一个第一SS/PBCH block的发射波束信息与第一节点的一个指定发射波束信息相关联。
在一种可能的实现方式中，H个第一SS/PBCH block中的至少一个第一SS/PBCH block与第一节点的一个指定发送信号相关联。
第二个实施例：同步信号配置信息还用于指示N个第二SS/PBCH block中的K个第二SS/PBCH block的接收波束信息(即同步信号配置信息还用于指示N个第二同步信号中的K个第二同步信号的波束信息)。其中，通过指示第二SS/PBCH block的接收波束信息，可以进一步降低中继节点进行波束扫描的资源和时间开销。
在一种可能的实现方式中，K个第二SS/PBCH block中的至少一个第二SS/PBCH block的接收波束信息与第二节点的一个指定发射波束信息相关联。比如，指定发射波 束信息可以为第二节点已配置的另一个同步信号或参考信号的发射波束信息。
在一种可能的实现方式中，K个第二SS/PBCH block中的至少一个第二SS/PBCH block与第二节点的一个指定发送信号相关联。其中，指定发送信号可以是第二节点已配置的同步信号或者参考信号。即第二节点用一个已有参考信号的发射波束方向接收另一参考信号。
在一种可能的实现方式中，中继网络还包括第三节点，K个第二SS/PBCH block中的至少一个第二SS/PBCH block的接收波束信息与第二节点接收第三节点的一个指定发送信号的接收波束信息相关联。其中，第一节点可以指示第二节点在该至少一个第二SS/PBCH block上检测第三节点的同步信号或者参考信号，且使用的接收波束信息可以是已配置的与第三节点通信时的接收波束信息。另外，至少一个第二SS/PBCH block可以包括一个或者多个第二SS/PBCH block，当其包括多个第二SS/PBCH block时，多个第二SS/PBCH block可以对应一个波束，也可以对应多个波束，即接收波束信息可以包括一个或者多个波束。
具体的，第一节点还可以配置第二节点在对应的一个或者多个SS/PBCH block位置进行信号检测，即检测第三节点的同步信号，以使第二节点发现第三节点。
可选的，信号检测可以有两种模式：
第一种、令第二节点在指定的位置搜索第三节点的同步信号。此时，第一节点可以为第二节点配置搜索的时频位置及被搜索节点(比如，第三节点)发送的序列ID。
第二种、令第二节点在指定的位置和指定的波束搜索第三节点的同步信号。此时，第一节点可以为节点为第二节点配置搜索的时频位置、波束信息及被搜索节点(比如，第三节点)发送的序列ID(其中，序列ID也可以本替换为被搜索节点ID或被搜索参考信号ID)。
需要说明的是，该序列ID可以是小区物理ID、UE ID、或者其余参数计算得到的一个ID等等，本申请实施例对此不做具体限定。
在第二种信号检测模式中，第一节点通过指示第二节点检测的SS/PBCH block的波束信息，可以避免第二节点在使用多个波束时，切换不同的波束进行信号检测，从而可以进一步降低中继节点间相互发现的资源和时间开销。
在一种可能的实现方式中，K个第二SS/PBCH block中的至少一个第二SS/PBCH block的接收波束信息与第一节点的一个指定发射波束信息相关联。
在一种可能的实现方式中，K个第二SS/PBCH block中的至少一个第二SS/PBCH block与第一节点的一个指定发送信号相关联。
在一种可能的实现方式中，中继网络还包括第四节点，第一节点可以指示第二节点在至少一个第二SS/PBCH block上检测第四信号的同步信号，第一节点可以不指示至少一个第二SS/PBCH block的接收波束信息。
进一步的，当某一中继节点处于移动过程中(比如，第二节点处于移动过程中)时，移动中继节点需要持续扫描，以进行无线资源管理(radio resource management，RRM)和切换，网络可以通过配置令移动中继节点的扫描波束与其发送波束不发生冲突，比如，限制移动中继节点的扫描SS/PBCH block位置集合，即配置移动中继节点不需要扫描其自身发送SS/PBCH block的位置，从而实现移动中继节点的同步信号配 置，使其在进行移动性测量时不影响自身同步信号的发送。
示例性的，为便于理解，这里以10个SS/PBCH block为例，对同步配置信息中关于SS/PBCH block的配置进行详细说明。假设第一节点为配置节点，第二节点为被配置节点，第三节点和第四节点为中继网络中的其他中继节点，则第二节点的配置情况可以如下表1所示。其中，表1中的SSB表示SS/PBCH block，发送SSB表示第一SS/PBCH block，接收SSB表示第二SS/PBCH block。
表1
Figure PCTCN2019072018-appb-000001
需要说明的是，上述表1中的SSB 1～6可以表示同步信号配置信息中配置的用于发送同步信号的第一SS/PBCH block，其中，SSB 1～2表示第二节点自定义波束的第一SS/PBCH block，SSB 3～6表示第一节点指定发射波束信息或者关联节点的第一SS/PBCH block。SSB 7～10可以表示同步信号配置信息中配置的用于检测同步信号的第二SS/PBCH block。其中，关联节点是指SSB的接收节点或发送节点，在一种可能的实现中，关联节点和关联SSB/RS可以不同时指示。
另外，本申请实施中的两个波束信息相关联可以包括：两个波束信息相同，或者两个波束信息具有准共址(QCL)关系。两个信号相关联可以是指两个信号具有关于空间接收信息的准共址(QCL)关系。
在本申请的另一实施例中，还可以通过配置中继网络包括的中继节点的参考信号，实现中继节点间的相互发现。比如，第一节点可以配置第二节点发送参考信号的位置，以及配置第二节点检测其他中继节点的参考信号的位置，以使第二节点可以在对应的位置上发送参考信号，以及检测其他中继节点的参考信号，来实现中继节点间的相互发现。具体的，通过配置中继网络包括的中继节点的参考信号，实现中继节点间的相互发现的过程，与上述配置中继节点的同步信号的过程类似，具体参见上述描述，本申请实施例在此不再赘述。
上述主要从各个网元之间交互的角度对本申请实施例提供的方案进行了介绍。可以理解的是，各个网元，例如第一节点、第二节点和第三节点为了实现上述功能，其包含了执行各个功能相应的硬件结构和/或软件模块。本领域技术人员应该很容易意识到，结合本文中所公开的实施例描述的各示例的网元及算法步骤，本申请能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
本申请实施例可以根据上述方法示例对第一节点和第二节点进行功能模块的划分，例如，可以对应各个功能划分各个功能模块，也可以将两个或两个以上的功能集成在一个处理模块中。上述集成的模块既可以采用硬件的形式实现，也可以采用软件功能模块的形式实现。需要说明的是，本申请实施例中对模块的划分是示意性的，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式。
在采用对应各个功能划分各个功能模块的情况下，图8示出了上述实施例中所涉及的第一节点的一种可能的结构示意图，第一节点包括：发送单元801。其中，发送单元801用于支持第一节点执行图5中的S501，以及向第三节点发送检测指示信息的步骤等。可选的，第一节点还可以包括处理单元802和接收单元803；其中，处理单元802用于支持第一节点执行生成同步信号配置信息的步骤，和/或本文所描述的其他技术过程；接收单元803用于支持第一节点接收来自其他节点的信息的步骤。
在硬件实现上，上述处理单元802可以为处理器；发送单元801可以为发送器，接收单元803可以为接收器，接收器和发送器可以构成通信接口。
图9所示，为本申请的实施例提供的上述实施例中所涉及的第一节点的一种可能的逻辑结构示意图。第一节点包括：存储器901和处理器902，存储器901用于存储第一节点的代码和数据。在本申请的实施例中，处理器902用于对第一节点的动作进行控制管理，例如，处理器902用于支持第一节点生成同步信号配置信息的步骤，和/或用于本文所描述的技术的其他过程。可选的，第一节点还可以包括通信接口903和总线904，处理器902、通信接口903以及存储器901通过总线904相互连接。其中，通信接口903用于支持第一节点进行通信。
其中，处理器902可以是中央处理器单元，通用处理器，数字信号处理器，专用 集成电路，现场可编程门阵列或者其他可编程逻辑器件、晶体管逻辑器件、硬件部件或者其任意组合。其可以实现或执行结合本申请公开内容所描述的各种示例性的逻辑方框，模块和电路。所述处理器也可以是实现计算功能的组合，例如包含一个或多个微处理器组合，数字信号处理器和微处理器的组合等等。总线904可以是外设部件互连标准(peripheral component interconnect，PCI)总线或扩展工业标准结构(extended industry standard architecture，EISA)总线等。所述总线可以分为地址总线、数据总线、控制总线等。为便于表示，图9中仅用一条粗线表示，但并不表示仅有一根总线或一种类型的总线。
在采用对应各个功能划分各个功能模块的情况下，图10示出了上述实施例中所涉及的第二节点的一种可能的结构示意图，第二节点包括：接收单元1001和发送单元1002。其中，接收单元1001用于支持第二节点执行图5中的S502、以及S503中在N个第二SS/PBCH block的时频位置上检测同步信号的步骤等；发送单元1002用于支持第二节点执行图5的S503中在M个第一SS/PBCH block的时频位置上发送同步信号的步骤。可选的，第二节点还可以包括处理单元1003，处理单元1003用于支持第二节点执行解析同步信号配置信息的步骤，和/或本文所描述的其他技术过程。
在硬件实现上，上述处理单元1003可以为处理器；接收单元1001可以为接收器，发送单元1002可以为发送器，接收器和发送器可以构成通信接口。
图11所示，为本申请的实施例提供的上述实施例中所涉及的第二节点的一种可能的逻辑结构示意图。第二节点包括：存储器1101和处理器1102，存储器1101用于存储第二节点的代码和数据。在本申请的实施例中，处理器1102用于对第二节点的动作进行控制管理，例如，处理器1102用于支持第二节点解析同步信号配置信息的步骤，和/或用于本文所描述的技术的其他过程。可选的，第二节点还可以包括通信接口1103和总线1104，处理器1102、通信接口1103以及存储器1101通过总线1104相互连接。其中，通信接口1103用于支持第二节点进行通信。
其中，处理器1102可以是中央处理器单元，通用处理器，数字信号处理器，专用集成电路，现场可编程门阵列或者其他可编程逻辑器件、晶体管逻辑器件、硬件部件或者其任意组合。其可以实现或执行结合本申请公开内容所描述的各种示例性的逻辑方框，模块和电路。所述处理器也可以是实现计算功能的组合，例如包含一个或多个微处理器组合，数字信号处理器和微处理器的组合等等。总线1104可以是外设部件互连标准(PCI)总线或扩展工业标准结构(EISA)总线等。所述总线可以分为地址总线、数据总线、控制总线等。为便于表示，图11中仅用一条粗线表示，但并不表示仅有一根总线或一种类型的总线。
在本申请的另一实施例中，还提供一种可读存储介质，可读存储介质中存储有计算机执行指令，当一个设备(可以是单片机，芯片等)或者处理器执行图5所提供的同步信号配置方法中第一节点的部分或全部步骤。前述的可读存储介质可以包括：U盘、移动硬盘、只读存储器、随机存取存储器、磁碟或者光盘等各种可以存储程序代码的介质。
在本申请的另一实施例中，还提供一种可读存储介质，可读存储介质中存储有计算机执行指令，当一个设备(可以是单片机，芯片等)或者处理器执行图5所提供的同 步信号配置方法中第二节点的部分或全部步骤。前述的可读存储介质可以包括：U盘、移动硬盘、只读存储器、随机存取存储器、磁碟或者光盘等各种可以存储程序代码的介质。
在本申请的另一实施例中，还提供一种计算机程序产品，该计算机程序产品包括计算机执行指令，该计算机执行指令存储在计算机可读存储介质中；设备的至少一个处理器可以从计算机可读存储介质读取该计算机执行指令，至少一个处理器执行该计算机执行指令使得设备实施图5所提供的同步信号配置方法中第一节点的部分或者全部步骤。
在本申请的另一实施例中，还提供一种计算机程序产品，该计算机程序产品包括计算机执行指令，该计算机执行指令存储在计算机可读存储介质中；设备的至少一个处理器可以从计算机可读存储介质读取该计算机执行指令，至少一个处理器执行该计算机执行指令使得设备实施图5所提供的同步信号配置方法中第二节点的部分或者全部步骤。
在本申请的另一实施例中，还提供一种通信系统，该通信系统包括多个节点，该多个设备包括第一节点和第二节点，第一节点为第二节点的上级节点。其中，第一节点可以为图8或图9所提供的第一节点，且用于执行图5所提供的同步信号配置方法中第一节点的步骤；和/或，第二节点可以为图10或图11所提供的第二节点，且用于执行图5所提供的同步信号配置方法中第二节点的步骤。
在本申请实施例中，第一节点为第二节点的上级节点，通过第一节点向第二节点发送同步信号配置信息，同步信号配置信息用于指示发送M个第一同步信号时频位置、以及N个第二同步信号时频位置，从而在第二节点接收到同步信号配置信息时，可以根据同步信号配置信息发送同步信号，并检测其他节点的同步信号，从而可以使其他节点在该M个第一同步信号时频位置检测到第二节点的同步信号，第二节点在N个第二同步信号时频位置检测到其他节点的同步信号，进而实现中继节点间的相互发现，同时也可以避免中继节点对候选同步信号时频位置集合中的每个同步信号时频位置进行检测，从而减小了中继节点间相互发现的资源和时间开销。
最后应说明的是：以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何在本申请揭露的技术范围内的变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。

Claims (35)

  1. 一种同步信号配置方法，其特征在于，应用于包括第一节点和第二节点的中继网络中，所述第一节点为所述第二节点的上级节点，所述方法包括：
    所述第一节点向所述第二节点发送同步信号配置信息，所述同步信号配置信息用于指示候选同步信号时频位置集合中的M个第一同步信号时频位置和N个第二同步信号时频位置；
    其中，所述第一同步信号时频位置用于所述第二节点发送第一同步信号，所述第二同步信号时频位置用于所述第二节点接收或检测第二同步信号，所述候选同步信号时频位置集合包括W个同步信号时频位置，W≥(M+N)。
  2. 一种同步信号配置方法，其特征在于，应用于包括第一节点和第二节点的中继网络中，所述第一节点为所述第二节点的上级节点，所述方法包括：
    所述第二节点接收来自所述第一节点的同步信号配置信息，所述同步信号配置信息用于指示候选同步信号时频位置集合中的M个第一同步信号时频位置和N个第二同步信号时频位置，其中，所述候选同步信号时频位置集合包括W个同步信号时频位置，W≥(M+N)；
    所述第二节点根据所述同步信号配置信息在所述M个第一同步信号时频位置发送同步信号，在所述N个第二同步信号时频位置接收或检测同步信号。
  3. 根据权利要求1或2所述的方法，其特征在于，所述同步信号配置信息还用于指示所述M个第一同步信号中的H个第一同步信号发射波束信息，M≥H。
  4. 根据权利要求3所述的方法，其特征在于，所述H个第一同步信号中的至少一个第一同步信号的发射波束信息与所述第二节点的一个指定发射波束信息相关联。
  5. 根据权利要求3所述的方法，其特征在于，所述H个第一同步信号中的至少一个第一同步信号与所述第二节点的一个指定发送信号相关联。
  6. 根据权利要求3所述的方法，其特征在于，所述中继网络还包括第三节点，所述H个第一同步信号中的至少一个第一同步信号的发射波束信息与所述第三节点的指定发射波束信息相关联。
  7. 根据权利要求6所述的方法，其特征在于，所述至少一个第一同步信号的发射波束信息与所述第二节点接收所述第三节点的一个指定发送信号的接收波束信息相关联。
  8. 根据权利要求3所述的方法，其特征在于，所述中继网络还包括第三节点，所述H个第一同步信号中的至少一个第一同步信号与所述第三节点的一个指定发送信号相关联。
  9. 根据权利要求1或2所述的方法，其特征在于，所述同步信号配置信息还用于指示所述第二节点接收所述N个第二同步信号中的K个第二同步信号时的接收波束信息。
  10. 根据权利要求9所述的方法，其特征在于，所述K个第二同步信号中的至少一个第二同步信号的接收波束信息与所述第二节点的一个指定发射波束信息相关联。
  11. 根据权利要求9所述的方法，其特征在于，所述K个第二同步信号中的至少一个第二同步信号与所述第二节点的一个指定发送信号相关联。
  12. 根据权利要求9所述的方法，其特征在于，所述中继网络还包括第三节点，所述K个第二同步信号时频位中的至少一个第二同步信号的接收波束信息与所述第二节点接收所述第三节点的一个指定发送信号的接收波束信息相关联。
  13. 根据权利要求9所述的方法，其特征在于，所述中继网络还包括第三节点，所述K个第二同步信号中的至少一个第二同步信号与所述第三节点的一个指定发送信号相关联。
  14. 根据权利要求4-8、或10-13任一项所述的方法，其特征在于，所述相关联是指具有关于空间接收信息的准共址关系。
  15. 一种节点，其特征在于，所述节点为中继网络中的第一节点，所述中继网络还包括第二节点，所述第一节点为所述第二节点的上级节点，所述节点包括：
    发送单元，用于向所述第二节点发送同步信号配置信息，所述同步信号配置信息用于指示候选同步信号时频位置集合中的M个第一同步信号时频位置和N个第二同步信号时频位置的时频位置；
    其中，所述第一同步信号时频位置用于所述第二节点发送第一同步信号，所述第二同步信号时频位置用于所述第二节点接收或检测第二同步信号，所述候选同步信号时频位置集合包括W个同步信号时频位置，W≥(M+N)。
  16. 一种节点，其特征在于，所述节点为中继网络中的第二节点，所述中继网络还包括第一节点，所述第一节点为所述第二节点的上级节点，所述节点包括：
    接收单元，用于接收来自所述第一节点的同步信号配置信息，所述同步信号配置信息用于指示候选同步信号时频位置集合中的M个第一同步信号时频位置和N个第二同步信号时频位置，其中，所述候选同步信号时频位置集合包括W个同步信号时频位置，W≥(M+N)；
    发送单元，用于根据所述同步信号配置信息在所述M个第一同步信号时频位置发送第一同步信号；
    所述接收单元，还用于在所述N个第二同步信号时频位置接收或检测第二同步信号。
  17. 根据权利要求15或16所述的节点，其特征在于，所述同步信号配置信息还用于指示所述M个第一同步信号中的H个第一同步信号的发射波束信息，M≥H。
  18. 根据权利要求17所述的节点，其特征在于，所述H个第一同步信号中的至少一个第一同步信号的发射波束信息与所述第二节点的一个指定发射波束信息相关联。
  19. 根据权利要求17所述的节点，其特征在于，所述H个第一同步信号中的至少一个第一同步信号与所述第二节点的一个指定发送信号相关联。
  20. 根据权利要求17所述的节点，其特征在于，所述中继网络还包括第三节点，所述H个第一同步信号中的至少一个第一同步信号的发射波束信息与所述第三节点的指定发射波束信息相关联。
  21. 根据权利要求20所述的节点，其特征在于，所述至少一个第一同步信号的发射波束信息与所述第二节点接收所述第三节点的一个指定发送信号的接收波束信息相关联。
  22. 根据权利要求17所述的节点，其特征在于，所述中继网络还包括第三节点，所述H个第一同步信号中的至少一个第一同步信号与所述第三节点的一个指定发送信号相关联。
  23. 根据权利要求15或16所述的节点，其特征在于，所述同步信号配置信息还用于指示所述N个第二同步信号中的K个第二同步信号的接收波束信息。
  24. 根据权利要求23所述的节点，其特征在于，所述K个第二同步信号中的至少一个第二同步信号的接收波束信息与所述第二节点的一个指定发射波束信息相关联。
  25. 根据权利要求23所述的节点，其特征在于，所述K个第二同步信号中的至少一个第二同步信号与所述第二节点的一个指定发送信号相关联。
  26. 根据权利要求23所述的节点，其特征在于，所述中继网络还包括第三节点，所述K个第二同步信号中的至少一个第二同步信号的接收波束信息与所述第二节点接收所述第三节点的一个指定发送信号的接收波束信息相关联。
  27. 根据权利要求23所述的节点，其特征在于，所述中继网络还包括第三节点，所述K个第二同步信号中的至少一个第二同步信号与所述第三节点的一个指定发送信号相关联。
  28. 根据权利要求18-22、或24-27任一项所述的节点，其特征在于，所述相关联是指具有关于空间接收信息的准共址关系。
  29. 一种同步信号配置装置，其特征在于，所述装置包括存储器、处理器，所述存储器中存储代码和数据，所述处理器运行存储器中的代码使得所述装置执行上述权利要求1、或3-14任一项所述的同步信号配置方法。
  30. 一种同步信号配置装置，其特征在于，所述装置包括存储器、处理器，所述存储器中存储代码和数据，所述处理器运行存储器中的代码使得所述装置执行上述权利要求2、或3-14任一项所述的同步信号配置方法。
  31. 一种通信系统，其特征在于，所述通信系统包括第一节点和第二节点，所述第一节点为所述第二节点的上级节点；其中，所述第一节点用于执行上述权利要求1、或3-14任一项所述的同步信号配置方法，所述第二节点用于执行上述权利要求2、或3-14任一项所述的同步信号配置方法。
  32. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质中存储有指令，当所述指令在计算机上运行时，使得所述计算机执行上述权利要求1、或3-14任一项所述的同步信号配置方法。
  33. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质中存储有指令，当所述指令在计算机上运行时，使得所述计算机执行上述权利要求2、或3-14任一项所述的同步信号配置方法。
  34. 一种计算机程序产品，其特征在于，当所述计算机程序产品在计算机上运行时，使得所述计算机执行上述权利要求1、或3-14任一项所述的同步信号配置方法。
  35. 一种计算机程序产品，其特征在于，当所述计算机程序产品在计算机上运行时，使得该计算机执行上述权利要求2、或3-14任一项所述的同步信号配置方法。
PCT/CN2019/072018 2018-01-30 2019-01-16 一种同步信号配置方法及装置 Ceased WO2019149072A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP19746654.3A EP3720074A4 (en) 2018-01-30 2019-01-16 SYNCHRONOUS SIGNAL CONFIGURATION METHOD AND APPARATUS
US16/918,507 US11336412B2 (en) 2018-01-30 2020-07-01 Synchronization signal configuration method and apparatus

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201810091604.XA CN110099021B (zh) 2018-01-30 2018-01-30 一种同步信号配置方法及装置
CN201810091604.X 2018-01-30

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US16/918,507 Continuation US11336412B2 (en) 2018-01-30 2020-07-01 Synchronization signal configuration method and apparatus

Publications (1)

Publication Number Publication Date
WO2019149072A1 true WO2019149072A1 (zh) 2019-08-08

Family

ID=67442867

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/072018 Ceased WO2019149072A1 (zh) 2018-01-30 2019-01-16 一种同步信号配置方法及装置

Country Status (4)

Country Link
US (1) US11336412B2 (zh)
EP (1) EP3720074A4 (zh)
CN (1) CN110099021B (zh)
WO (1) WO2019149072A1 (zh)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021086582A1 (en) * 2019-11-01 2021-05-06 Qualcomm Incorporated Systems and methods for joint beam sweep configuration in 5g networks
CN113037794A (zh) * 2019-12-25 2021-06-25 马上消费金融股份有限公司 计算资源配置调度方法、装置及系统
CN118355700A (zh) * 2022-11-16 2024-07-16 京东方科技集团股份有限公司 同步方法及装置

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11558833B2 (en) * 2018-02-13 2023-01-17 Samsung Electronics Co., Ltd. Method and device for communicating synchronization signal
EP3794881A1 (en) * 2018-06-20 2021-03-24 Convida Wireless, LLC Synchronization in multi-hop nr iab deployment
WO2020060127A1 (ko) * 2018-09-20 2020-03-26 한국전자통신연구원 통신 시스템에서 셀 정보를 포함하는 신호의 송수신을 위한 방법 및 장치
CN112399440B (zh) * 2019-08-16 2022-09-16 华为技术有限公司 一种小区配置的确定方法及装置
WO2021031304A1 (zh) * 2019-08-16 2021-02-25 华为技术有限公司 一种定时同步方法及装置
CN113972969B (zh) * 2020-07-22 2023-05-05 维沃移动通信有限公司 控制信令的传输方法和设备
US20220077922A1 (en) * 2020-09-09 2022-03-10 Qualcomm Incorporated Synchronization signal block forwarding
EP4271031A4 (en) * 2020-12-25 2024-03-06 Beijing Xiaomi Mobile Software Co., Ltd. PERIOD CONFIGURATION METHOD AND APPARATUS, COMMUNICATION DEVICE AND STORAGE MEDIUM
WO2022165653A1 (zh) * 2021-02-02 2022-08-11 华为技术有限公司 一种短距通信方法及装置
CN113765613A (zh) * 2021-07-01 2021-12-07 齐鲁空天信息研究院 动态双节点时频同步方法、装置、设备及存储介质
CN115882920A (zh) * 2021-10-09 2023-03-31 中兴通讯股份有限公司 波束确定方法、设备和存储介质
CN116559872A (zh) * 2022-01-30 2023-08-08 北京华航无线电测量研究所 一种双基sar时频同步方法
CN117042154A (zh) * 2022-04-29 2023-11-10 大唐移动通信设备有限公司 波束指示方法、装置、直放站、宿主基站及存储介质
CN117675139B (zh) * 2022-08-24 2026-03-20 宸芯科技股份有限公司 邻节点识别方法及资源分配方法
KR20250103789A (ko) 2023-02-16 2025-07-07 켁텔 와이어리스 솔루션즈 코퍼레이션 리미티드 무선 통신을 위해 사용되는 노드에 대한 방법 및 장치

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150080040A1 (en) * 2012-05-24 2015-03-19 Huawei Technologies Co., Ltd. Terminal device discovery method, device and system
CN105357757A (zh) * 2015-09-25 2016-02-24 宇龙计算机通信科技(深圳)有限公司 一种通信资源配置方法和装置
CN107548146A (zh) * 2016-06-23 2018-01-05 中兴通讯股份有限公司 同步信号的发送方法、接收方法、发送装置及接收装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10805891B2 (en) * 2014-09-25 2020-10-13 Samsung Electronics Co., Ltd. Synchronization procedure and resource control method and apparatus for communication in D2D system
CN111541527B (zh) * 2015-11-20 2022-04-22 华为技术有限公司 一种下行同步的方法、装置及系统
WO2017146550A1 (en) * 2016-02-26 2017-08-31 Samsung Electronics Co., Ltd. Apparatus and method for performing random access in beam-formed system
KR102153077B1 (ko) * 2016-04-20 2020-09-07 콘비다 와이어리스, 엘엘씨 다운링크 동기화
WO2018119558A1 (en) * 2016-12-26 2018-07-05 Telefonaktiebolaget Lm Ericsson (Publ) Fast access to neighbor cell synchronization signals in nr
CN106851816B (zh) * 2017-02-03 2020-08-14 宇龙计算机通信科技(深圳)有限公司 同步方法、装置及系统
JP6960251B2 (ja) * 2017-06-15 2021-11-05 シャープ株式会社 端末装置、基地局装置、通信方法、および、集積回路
CN107528682B (zh) * 2017-09-20 2020-12-22 宇龙计算机通信科技(深圳)有限公司 参考信号的发送方法及装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150080040A1 (en) * 2012-05-24 2015-03-19 Huawei Technologies Co., Ltd. Terminal device discovery method, device and system
CN105357757A (zh) * 2015-09-25 2016-02-24 宇龙计算机通信科技(深圳)有限公司 一种通信资源配置方法和装置
CN107548146A (zh) * 2016-06-23 2018-01-05 中兴通讯股份有限公司 同步信号的发送方法、接收方法、发送装置及接收装置

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
AT &T: "NR Initial Access Procedure Design", 3GPP TSG RANI MEETING #87 R1-1612361, 18 November 2016 (2016-11-18), XP051176309 *
SAMSUNG: "Evaluation assumptions for Integrated Access and Backhaul", GPP TSG RAN WGI#90 RL-1714496, 25 August 2017 (2017-08-25), XP051317272 *
See also references of EP3720074A4

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021086582A1 (en) * 2019-11-01 2021-05-06 Qualcomm Incorporated Systems and methods for joint beam sweep configuration in 5g networks
US11223411B2 (en) 2019-11-01 2022-01-11 Qualcomm Incorporated Systems and methods for joint beam sweep configuration in 5G networks
CN113037794A (zh) * 2019-12-25 2021-06-25 马上消费金融股份有限公司 计算资源配置调度方法、装置及系统
CN118355700A (zh) * 2022-11-16 2024-07-16 京东方科技集团股份有限公司 同步方法及装置

Also Published As

Publication number Publication date
US20200336260A1 (en) 2020-10-22
CN110099021B (zh) 2021-10-26
EP3720074A1 (en) 2020-10-07
US11336412B2 (en) 2022-05-17
EP3720074A4 (en) 2021-02-24
CN110099021A (zh) 2019-08-06

Similar Documents

Publication Publication Date Title
US11336412B2 (en) Synchronization signal configuration method and apparatus
CN110958620B (zh) 一种测量信号配置的方法及装置
JP6718493B2 (ja) 基地局、受信品質取得方法及び集積回路
US20240031887A1 (en) Mobility management method and communication apparatus
US11265871B2 (en) Relay transmission method and apparatus
CN110476396A (zh) 在空间准共址的高频多载波操作中用于波束管理的系统和方法
CN111149391B (zh) 基于用户能力的小区选择
WO2019062567A1 (zh) 通信方法及装置
CN110313203A (zh) 用户终端以及无线通信方法
CN105745966A (zh) 使用上行链路信道特性进行提早切换的基站和方法
US10952168B2 (en) Method for transmitting downlink control signal and apparatus
CN111918304A (zh) 一种通信方法及装置
WO2019011248A1 (zh) 一种上报及确定波束信息的方法和装置
US20230164757A1 (en) Communication method and apparatus
WO2019183972A1 (zh) 一种信息的指示方法及装置、计算机存储介质
WO2017036306A1 (zh) 上下行干扰协调的处理方法及装置
US20250374072A1 (en) Method and apparatus for wireless communication
WO2025000199A1 (zh) 用于侧行通信的方法及装置
US20250365057A1 (en) Method and apparatus for sidelink communication
CN104053212B (zh) 一种d2d发现信号的传输方法和设备
WO2022151494A1 (zh) 一种传输参数确定方法及装置
WO2023273935A1 (zh) 下行控制信息的接收方法、信息的发送方法及相关装置
KR20200138386A (ko) 클리어 채널 청취 방법, 장치 및 기기
CN108307476B (zh) 无线接入网络中用于终端设备的初始接入的方法和设备
US20260122654A1 (en) Method and apparatus for sidelink communication

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19746654

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2019746654

Country of ref document: EP

Effective date: 20200702

NENP Non-entry into the national phase

Ref country code: DE

WWW Wipo information: withdrawn in national office

Ref document number: 2019746654

Country of ref document: EP