WO2020107488A1 - 同步信号块ssb传输方式的确定方法和设备 - Google Patents

同步信号块ssb传输方式的确定方法和设备 Download PDF

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Publication number
WO2020107488A1
WO2020107488A1 PCT/CN2018/118788 CN2018118788W WO2020107488A1 WO 2020107488 A1 WO2020107488 A1 WO 2020107488A1 CN 2018118788 W CN2018118788 W CN 2018118788W WO 2020107488 A1 WO2020107488 A1 WO 2020107488A1
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WIPO (PCT)
Prior art keywords
ssb
positions
overlapping
transmission
drs window
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Application number
PCT/CN2018/118788
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English (en)
French (fr)
Inventor
吴作敏
贺传峰
Original Assignee
Oppo广东移动通信有限公司
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 Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to CN201880095455.2A priority Critical patent/CN112369093B/zh
Priority to PCT/CN2018/118788 priority patent/WO2020107488A1/zh
Publication of WO2020107488A1 publication Critical patent/WO2020107488A1/zh
Priority to US17/328,484 priority patent/US20210282079A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/001—Synchronization between nodes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • 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
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the embodiments of the present application relate to the communication field, and more specifically, to a method and device for determining an SSB transmission mode.
  • LBT Listen Before Talk
  • the length of the DRS window may be greater than the length of the SSB transmission period, which may cause the overlap between the SSB position in the DRS window and the SSB position determined based on the SSB transmission period. At this time, how to ensure the effective transmission of SSB becomes an urgent problem to be solved.
  • the embodiments of the present application provide a method and a device for determining a block SSB transmission mode, which can realize the effective transmission of SSB in an unlicensed frequency band.
  • a method for transmitting a synchronization signal block SSB including: determining a first SSB position based on an SSB transmission period, the first SSB position is used to transmit the first SSB; and within the DRS window of the discovery reference signal Among the candidate SSB positions, the second SSB position is determined, and the second SSB position is used to transmit the second SSB; if the first SSB position and the second SSB position overlap in the time domain, the overlapping SSB position is determined SSB transmission method.
  • a method for transmitting a synchronization signal block SSB includes: receiving or sending the SSB according to the length of the discovery reference signal DRS window and the SSB transmission period.
  • a communication device which can execute the method in the first aspect or any optional implementation manner of the first aspect.
  • the communication device may include a functional module for performing the method in the first aspect or any possible implementation manner of the first aspect.
  • a communication device which can execute the method in the second aspect or any optional implementation manner of the second aspect.
  • the terminal device may include a functional module for performing the method in the second aspect or any possible implementation manner of the second aspect.
  • a communication device including a processor and a memory.
  • the memory is used to store a computer program
  • the processor is used to call and run the computer program stored in the memory to execute the method in the first aspect or any possible implementation manner of the first aspect.
  • a communication device including a processor and a memory.
  • the memory is used to store a computer program
  • the processor is used to call and run the computer program stored in the memory to perform the method in the second aspect or any possible implementation manner of the second aspect.
  • a chip for implementing the method in the first aspect or any possible implementation manner of the first aspect.
  • the chip includes a processor for calling and running a computer program from the memory, so that the device installed with the chip executes the method in the first aspect or any possible implementation manner of the first aspect.
  • a chip for implementing the method in the second aspect or any possible implementation manner of the second aspect.
  • the chip includes a processor for calling and running a computer program from the memory, so that the device installed with the chip executes the method in the second aspect or any possible implementation manner of the second aspect.
  • a computer-readable storage medium for storing a computer program that causes a computer to execute the method in the first aspect or any possible implementation manner of the first aspect.
  • a computer-readable storage medium for storing a computer program that causes a computer to execute the method in the second aspect or any possible implementation manner of the second aspect.
  • a computer program product including computer program instructions, which cause the computer to execute the method in the first aspect or any possible implementation manner of the first aspect.
  • a computer program product including computer program instructions, which cause the computer to execute the method in the second aspect or any possible implementation manner of the second aspect.
  • a computer program which when run on a computer, causes the computer to execute the method in the first aspect or any possible implementation manner of the first aspect.
  • a fourteenth aspect there is provided a computer program which, when run on a computer, causes the computer to execute the method in the second aspect or any possible implementation manner of the second aspect.
  • a communication system including a communication device.
  • the communication device is used to: determine the first SSB position based on the SSB transmission period, the first SSB position is used to transmit the first SSB; determine the second SSB position in the candidate SSB within the discovery reference signal DRS window SSB position, the second SSB position is used to transmit the second SSB; if the first SSB position and the second SSB position overlap in the time domain, the SSB transmission method at the overlapping SSB position is determined.
  • the network device when the network device performs SSB transmission on an unlicensed band, when the SSB position in the DRS window overlaps with the SSB position determined based on the SSB transmission period in the time domain, the network device determines the SSB transmission based on predetermined conditions In this way, the effective transmission of SSB is achieved, and there is no restriction on the length of the DRS window and the SSB transmission period.
  • FIG. 1 is a schematic diagram of a possible wireless communication system applied in an embodiment of the present application.
  • FIG. 2 is a schematic diagram of the DRS window and SSB transmission cycle.
  • FIG. 3 is a schematic flowchart of a method for determining an SSB transmission mode according to an embodiment of the present application.
  • FIG. 4 is a schematic diagram of an SSB transmission method according to an embodiment of the present application.
  • FIG. 5 is a schematic diagram of an SSB transmission method according to an embodiment of the present application.
  • FIG. 6 is a schematic diagram of an SSB transmission method according to an embodiment of the present application.
  • FIG. 7 is a schematic block diagram of a communication device according to an embodiment of the present application.
  • FIG. 8 is a schematic block diagram of a communication device according to an embodiment of the present application.
  • FIG. 9 is a schematic structural diagram of a communication device according to an embodiment of the present application.
  • FIG. 10 is a schematic structural diagram of a communication device according to an embodiment of the present application.
  • FIG. 11 is a schematic structural diagram of a chip according to an embodiment of the present application.
  • FIG. 12 is a schematic structural diagram of a chip according to an embodiment of the present application.
  • FIG. 13 is a schematic structural diagram of a communication system according to an embodiment of the present application.
  • GSM Global System of Mobile
  • CDMA Code Division Multiple Access
  • WCDMA Broadband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • LTE-A Advanced Long Term Evolution
  • NR New Radio
  • NR Universal Mobile Telecommunication System
  • WiMAX Worldwide Interoperability for Microwave Access
  • D2D Device to Device
  • M2M machine-to-machine
  • MTC machine type communication
  • V2V vehicle-to-vehicle
  • the communication system in the embodiments of the present application may be applied to scenarios such as carrier aggregation (CA), dual connectivity (DC), and standalone (SA) networking.
  • CA carrier aggregation
  • DC dual connectivity
  • SA standalone networking
  • the wireless communication system 100 may include a network device 110.
  • the network device 110 may be a device that communicates with a terminal device.
  • the network device 110 can provide communication coverage for a specific geographic area, and can communicate with terminal devices located within the coverage area.
  • the network device 100 may be a base station (Base Transceiver Station, BTS) in a GSM system or a CDMA system, a base station (NodeB, NB) in a WCDMA system, or an evolved base station in an LTE system (Evolutional Node B, eNB or eNodeB), or the network-side device in the NR system, or the wireless controller in the Cloud Radio Access Network (CRAN), or the network device can be a relay station, Incoming points, in-vehicle devices, wearable devices, network-side devices in next-generation networks, or network devices in future public land mobile networks (Public Land Mobile Network, PLMN), etc.
  • BTS Base Transceiver Station
  • NodeB, NB base station
  • LTE Long Term Evolutional Node B
  • eNB evolved Node B
  • eNodeB evolved base station
  • the network-side device in the NR system or the wireless controller in the Cloud Radio Access Network (CRAN)
  • the network device can be a relay
  • the wireless communication system 100 further includes at least one terminal device 120 located within the coverage of the network device 110.
  • the terminal device 120 may be mobile or fixed.
  • the terminal device 120 may refer to an access terminal, user equipment (User Equipment, UE), user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication Device, user agent, or user device.
  • User Equipment User Equipment
  • Access terminals can be cellular phones, cordless phones, Session Initiation Protocol (SIP) phones, wireless local loop (Wireless Local Loop, WLL) stations, personal digital processing (Personal Digital Assistant (PDA), wireless communication Functional handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in future 5G networks or terminal devices in future evolved PLMNs, etc.
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • wireless communication Functional handheld devices computing devices or other processing devices connected to wireless modems
  • in-vehicle devices wearable devices
  • terminal devices in future 5G networks or terminal devices in future evolved PLMNs etc.
  • terminal direct connection Device to Device, D2D communication may also be performed between the terminal devices 120.
  • the network device 110 may provide services for the cell, and the terminal device 120 communicates with the network device 110 through the transmission resources (eg, frequency domain resources, or spectrum resources) used by the cell, and the cell may be the network device 110 (eg, base station)
  • the cell may belong to a macro base station, or a base station corresponding to a small cell (Small cell), where the small cell may include, for example, a metro cell, a micro cell, and a pico cell , Femtocells, etc.
  • Small cell Small cell
  • these small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.
  • FIG. 1 exemplarily shows one network device and two terminal devices.
  • the wireless communication system 100 may include multiple network devices and each network device may include other numbers of terminal devices within the coverage area. The application examples do not limit this.
  • the wireless communication system 100 may further include other network entities such as a network controller, a mobility management entity, etc., which are not limited in the embodiments of the present application.
  • SSB location the location that can be used to transmit SSB is simply referred to as "SSB location", and each SSB location can transmit one SSB.
  • the SSB may include a primary synchronization signal (Primary Synchronization Signal, PSS) and a secondary synchronization signal (Secondary Synchronization Signal, SSS), and a physical broadcast channel (Physical Broadcast Channel, PBCH).
  • PSS Primary Synchronization Signal
  • SSS Secondary Synchronization Signal
  • PBCH Physical Broadcast Channel
  • the DRS window can be used to transmit at least one of the following information in addition to the SSB: scheduling remaining minimum system information (RemainingMinimumSystemInformation, RMSI) control channel resource set, RMSI, channel status information reference Signal (Channel Status Information Reference (CSI-RS), Other System Information (OSI) and paging message.
  • RMSI RemainingMinimumSystemInformation
  • RMSI channel status information reference Signal
  • CSI-RS Channel Status Information Reference
  • OSI System Information
  • the number of candidate SSB positions in a DRS window may be greater than the number of SSBs actually sent by the network device.
  • the network device may determine which SSB positions are used to transmit the SSB according to the result of obtaining the channel usage right in the DRS window, such as the LBT result.
  • the actual SSB positions transmitted in different DRS windows may be different.
  • the candidate SSB position in the DRS window There is a correspondence between the candidate SSB positions in the DRS window and the SSB index.
  • the SSB that can be sent at each candidate SSB position is not an arbitrary SSB, but the SSB indicated by the SSB index corresponding to the SSB position, the same index There is a QCL relationship between the SSBs.
  • the candidate SSB location may be a protocol agreement or a network device configuration.
  • SCLs with different indexes may also have a QCL relationship.
  • the QCL relationship can be configured by a protocol agreement or a network device.
  • the network device is configured to send 4 SSBs, where the SSB with index 0 and the SSB with index 4 have a QCL relationship, the SSB with index 1 and the SSB with index 5 have a QCL relationship, and so on.
  • the number of SSB positions in the DRS window may be configured according to the size of the subcarrier interval. If the subcarrier spacing is 15 kHz, the candidate SSB positions in the DRS window are 16; if the subcarrier spacing is 30 kHz, the candidate SSB positions are 32 in the DRS window; if the subcarrier spacing is 60 kHz, the candidate in the DRS window Has 64 SSB positions.
  • the length of the DRS window is 8 ms
  • the period of the DRS window is 40 ms, that is, the first 8 ms of each 40 ms is a DRS window.
  • a DRS window includes 8 subframes, as shown in FIG. 2 is subframe 0 to subframe 7, wherein each subframe includes two candidate SSB positions.
  • Each candidate SSB location is marked with a number.
  • the SSB locations with the same number can be used to send SSBs with the same index, or, the SSB locations with the same number can be used to send SSBs with (Quasi-Co-Location, QCL) relationship. .
  • SSB position 0 corresponds to SSB#0, so each SSB position 0 is used to send SSB#0, or SSB sent at SSB position 0 has a QCL relationship
  • SSB position 1 corresponds to SSB#1 , So each SSB position 1 is used to send SSB#1, or the SSB sent at SSB position 1 has a QCL relationship
  • SSB position 2 corresponds to SSB#2, so each SSB position 2 is used to send SSB#2, In other words, the SSB sent at SSB position 2 has a QCL relationship
  • SSB position 3 corresponds to SSB#3, so each SSB position 3 is used to send SSB#3, or the SSB sent at SSB position 3 has a QCL relationship.
  • Such a corresponding relationship may be a protocol agreement or a network device configuration.
  • Each SSB is only sent at its corresponding SSB location.
  • #0 to #3 represent SSB index
  • the network device can send the corresponding SSB at the SSB position where the channel usage right is obtained. For example, SSB#2 is sent on SSB position 2 in subframe 5, SSB#3 is sent on SSB position 3 in subframe 5, SSB#0 is sent on SSB position 0 in subframe 6, and subframe SSB#1 is sent at SSB position 1 of 6.
  • the network device also needs to meet its transmission cycle when sending the SSB.
  • the SSB transmission cycle is 5ms, that is, one round of SSB needs to be transmitted within the first 2ms of each 5ms (SSB#0 to SSB#3 is one Round SSB).
  • the network device needs to send the SSB based on the SSB transmission period, for example, send SSB#0 at SSB position 0 in subframe 5, send SSB#1 at SSB position 1 in subframe 5, and send SSB#1 at subframe 5 SSB#2 is transmitted at SSB position 2 and SSB#3 is transmitted at SSB position 3 in subframe 6.
  • subframe 5 it can be seen that if according to the candidate SSB position in the DRS window, the network device should send SSB#2 and SSB#3 at the SSB position in subframe 5, respectively, and if according to the SSB transmission period It is judged that the network device should send SSB#0 and SSB#1 at the SSB position in subframe 5 respectively.
  • the network device needs to determine how to send the SSB at the overlapping SSB positions.
  • the network device when the network device performs SSB transmission on an unlicensed frequency band, when the SSB position in the DRS window and the SSB position determined based on the SSB transmission period overlap in the time domain, the network device determines the SSB based on predetermined conditions Sending method, so as to realize the effective transmission of SSB in the unlicensed frequency band, and will not bring constraints on the length of the DRS window and the SSB transmission period.
  • FIG. 3 is a schematic flowchart of a method 300 for determining an SSB transmission mode according to an embodiment of the present application.
  • the method described in FIG. 3 may be performed by a communication device, which may include a network device or a terminal device.
  • the network device may be, for example, the network device 110 shown in FIG. 1, and the terminal device may be, for example, shown in FIG. ⁇ terminal ⁇ 120 ⁇ The terminal device 120.
  • the SSB transmission method 300 may include some or all of the following steps. among them:
  • a first SSB location is determined, and the first SSB location is used to transmit the first SSB.
  • a second SSB position is determined, and the second SSB position is used to transmit the second SSB.
  • the SSB transmission method at the overlapping SSB positions is determined.
  • the network device when the network device sends the SSB, on the one hand, it needs the transmission period based on the SSB, on the other hand, it also needs to consider the candidate SSB position in the DRS window.
  • a transmission opportunity is obtained, if the network device determines that the first SSB can be sent at the first SSB location according to the SSB transmission cycle, and determines that the second SSB can be sent at the second SSB location in the DRS window, then when the first SSB When the location and the second SSB location overlap, the network device needs to determine how to send the SSB at the overlapping SSB location.
  • the terminal device when receiving SSB, the terminal device also needs to consider the SSB transmission period and the candidate SSB position in the DRS window. If the terminal device determines to receive the first SSB at the first SSB position according to the SSB transmission period, and determines to receive the second SSB at the second SSB position within the DRS window, when the first SSB position and the second SSB position overlap, The terminal device needs to determine how to receive the SSB at overlapping SSB positions.
  • the position of the first SSB and the position of the second SSB overlap in the time domain, including that the position of the first SSB and the position of the second SSB overlap in the time domain partially or completely.
  • the first SSB position and the second SSB position partially overlap or completely overlap in the frequency domain.
  • the position of the first SSB and the position of the second SSB do not overlap in the frequency domain and the position of the first SSB and the position of the second SSB are within the same listening bandwidth in the frequency domain, where the listening bandwidth refers to The bandwidth of the channel detection performed before SSB transmission.
  • the length of the SSB transmission period, the length of the DRS window, and the period of the DRS window are not limited.
  • the length of the SSB transmission period may be, for example, 5 milliseconds (ms), 10 ms, and 20 ms.
  • the length of the DRS transmission window may be greater than 5 ms, for example, 6 ms, 7 ms, 8 ms, and 9 ms.
  • the period of the DRS transmission window may be, for example, 40 ms, 80 ms, and 160 ms.
  • FIGS. 4 to 7 only take the SSB sent by the network device as an example. Unless otherwise specified, the process of receiving the SSB by the terminal device can refer to the related description for the network device.
  • the SSB transmission method at the overlapping SSB positions is determined, including:
  • the network device may send the SSB according to the candidate SSB position in the DRS window. And, further, the network device may determine whether it is necessary to send the SSB at the overlapping SSB location according to whether at least one round of SSB transmission has been completed before the overlapping SSB location. Correspondingly, when receiving SSB, the terminal device can determine whether it needs to be based on whether the reception of at least one SSB has been completed before the overlapping SSB positions, or according to the indication information of the network device for the SSB transmission in the DRS window. SSB is received at overlapping SSB positions.
  • the SSB subcarrier spacing is 15 kHz
  • the length of the DRS window is 8 ms
  • the length of the SSB transmission period is 5 ms.
  • the SSB positions with the same number can be used to send SSBs with the same index, or the SSB positions with the same number can be used to send SSBs with a QCL relationship.
  • SSB position 0 is used to send SSB#0
  • SSB position 1 is used to send SSB#1
  • SSB position 2 is used to send SSB#2
  • SSB position 3 is used to send SSB#3.
  • the network device may determine that the two SSB positions of subframe 5 are used to send SSB#2 and SSB#3, and the two SSB positions of subframe 6 are used to send SSB#, respectively. 0 and SSB#1; and based on the SSB transmission period, the network device can determine the two SSB positions of subframe 5 to send SSB#0 and SSB#1, and the two SSB positions of subframe 6 to send SSB respectively #2 and SSB#3. That is, the SSB positions that overlap and have different numbers include the SSB positions on subframe 5 and subframe 6.
  • the network device may determine that the two SSB positions on subframe 5 and subframe 6 are not used to send SSB, as in the case of FIG. 4 1 shown.
  • the network device can send SSB# at the two SSB positions in subframe 5 according to the candidate SSB positions in the DRS window 2 and SSB#3, and SSB#0 is sent at the first SSB position of subframe 6, as shown in case 2 of FIG. 4.
  • the "one-round SSB" in the embodiment of the present application is determined according to the number of SSBs sent by the network device.
  • a round of SSB may include SSB#0 to SSB#3.
  • a round of SSB indexes may include SSB#0 to SSB#7.
  • determining the SSB transmission mode at the overlapping SSB positions includes: determining the overlapping SSB positions for transmitting the second SSB.
  • the network device when the SSB position determined based on the SSB transmission period overlaps with the SSB position determined based on the candidate SSB position in the DRS window, the network device always sends the SSB according to the candidate SSB position in the DRS window .
  • the SSB subcarrier spacing is 15 kHz
  • the length of the DRS window is 8 ms
  • the length of the SSB transmission period is 5 ms.
  • the SSB positions with the same number can be used to send SSBs with the same index, or the SSB positions with the same number can be used to send SSBs with a QCL relationship.
  • SSB position 0 is used to send SSB#0
  • SSB position 1 is used to send SSB#1
  • SSB position 2 is used to send SSB#2
  • SSB position 3 is used to send SSB#3.
  • the network device may determine that the two SSB positions of subframe 5 are used to send SSB#2 and SSB#3, and the two SSB positions of subframe 6 are used to send SSB#, respectively. 0 and SSB#1. Based on the SSB transmission period, the network device may determine that the two SSB positions of subframe 5 are used to send SSB#0 and SSB#1, and the two SSB positions of subframe 6 are used to send SSB#2 and SSB#3, respectively. That is, the SSB positions that overlap and have different numbers include the SSB positions on subframe 5 and subframe 6.
  • the network device obtains an SSB transmission opportunity within the DRS window.
  • the transmission opportunity includes 4 SSB positions, which are sequentially located at the first SSB position of subframe 5 and the second SSB position of subframe 5. , The first SSB position of subframe 6, and the second SSB position of subframe 6. Before the overlapping SSB positions, the network device has completed a round of SSB transmission.
  • the network device will send the SSB based on the candidate SSB position in the DRS window, that is, send SSB#2 and SSB#3 in sequence at the two SSB positions in subframe 5, and the two in subframe 6 SSB#0 and SSB#1 are sent in sequence at each SSB position.
  • the network device obtains an SSB transmission opportunity within the DRS window.
  • the transmission opportunity includes 5 SSB positions, which are sequentially located at the second SSB position of subframe 4 and the first SSB position of subframe 5, The second SSB position of subframe 5, the first SSB position of subframe 6, and the second SSB position of subframe 6.
  • the network device Before the overlapping SSB positions, the network device has not completed a round of SSB transmission.
  • the network device will still send the SSB based on the candidate SSB position in the DRS window. That is, SSB#1 is sent at the SSB position of subframe 4, SSB#2 and SSB#3 are sent sequentially at the two SSB positions of subframe 5, and SSB# is sent sequentially at the two SSB positions of subframe 6. 0 and SSB#1.
  • determining the SSB transmission mode at the overlapping SSB positions includes: determining the overlapping SSB positions for transmitting the first SSB.
  • the network device when the SSB position determined based on the SSB transmission period overlaps with the SSB position determined based on the candidate SSB position in the DRS window, the network device always performs SSB transmission based on the SSB transmission period.
  • the SSB subcarrier spacing is 15 kHz
  • the length of the DRS window is 8 ms
  • the length of the SSB transmission period is 5 ms.
  • the SSB positions with the same number can be used to send SSBs with the same index, or the SSB positions with the same number can be used to send SSBs with a QCL relationship.
  • SSB position 0 is used to send SSB#0
  • SSB position 1 is used to send SSB#1
  • SSB position 2 is used to send SSB#2
  • SSB position 3 is used to send SSB#3.
  • the network device can determine that the two SSB positions of subframe 5 are used to send SSB#2 and SSB#3, and the two SSB positions of subframe 6 are used to send SSB respectively. #0 and SSB#1. Based on the SSB transmission period, the network device may determine that the two SSB positions of subframe 5 are used to send SSB#0 and SSB#1, and the two SSB positions of subframe 6 are used to send SSB#2 and SSB#3, respectively. That is, the SSB positions that overlap and have different numbers include the SSB positions on subframe 5 and subframe 6.
  • the network device obtains an SSB transmission opportunity within the DRS window.
  • the transmission opportunity includes 4 SSB positions, which are located in sequence at the first SSB position of subframe 5 and the second SSB position of subframe 5 , The first SSB position of subframe 6, and the second SSB position of subframe 6.
  • the network device Before the overlapping SSB positions, the network device has completed a round of SSB transmission.
  • the network device will send the SSB based on the SSB transmission period, that is, send SSB#0 and SSB#1 in sequence at the two SSB positions in subframe 5, and send it in sequence at the two SSB positions in subframe 6 SSB#2 and SSB#3.
  • the network device obtains an SSB transmission opportunity within the DRS window.
  • the transmission opportunity includes 5 SSB positions, which are sequentially located at the second SSB position of subframe 4 and the first SSB position of subframe 5, The second SSB position of subframe 5, the first SSB position of subframe 6, and the second SSB position of subframe 6.
  • the network device Before the overlapping SSB positions, the network device has not completed a round of SSB transmission.
  • the network device will send the SSB based on the SSB transmission cycle. That is, SSB#1 is sent at the SSB position of subframe 4, SSB#0 and SSB#1 are sent sequentially at the two SSB positions of subframe 5, and SSB# is sent sequentially at the two SSB positions of subframe 6. 2 and SSB#3.
  • the SSB transmission method at the overlapping SSB positions is determined, including:
  • the network device may determine whether at least one round of SSB transmission has been completed before the overlapping SSB position. Determine how to send SSB at overlapping SSB positions.
  • the terminal device can determine whether the overlap is based on whether at least one round of SSB reception has been completed before the overlapped SSB position, or according to the indication information of the network device for the SSB transmission in the DRS window. How to receive SSB in the SSB position.
  • the overlapping SSB position is used to send the second SSB; if at least one round of SSB transmission has not been completed before the overlapping SSB position, the overlapping The SSB position is used to send the first SSB.
  • the overlapping SSB position is used to send the first SSB; if at least one round of SSB transmission has not been completed before the overlapping SSB positions, the overlap The SSB location is used to send the second SSB.
  • the SSB positions with the same number can be used to send SSBs with the same index, or the SSB positions with the same number can be used to send SSBs with a QCL relationship. For example, SSB position 0 is used to send SSB#0, SSB position 1 is used to send SSB#1, SSB position 2 is used to send SSB#2, and SSB position 3 is used to send SSB#3.
  • the network device can determine that the two SSB positions of subframe 5 are used to send SSB#2 and SSB#3, and the two SSB positions of subframe 6 are used to send SSB respectively. #0 and SSB#1. Based on the SSB transmission period, the network device may determine that the two SSB positions of subframe 5 are used to send SSB#0 and SSB#1, and the two SSB positions of subframe 6 are used to send SSB#2 and SSB#3, respectively. That is, the SSB positions that overlap and have different numbers include the SSB positions on subframe 5 and subframe 6.
  • the network device obtains an SSB transmission opportunity within the DRS window.
  • the transmission opportunity includes 4 SSB positions, which are the first SSB position of subframe 5 and the second SSB position of subframe 5 in sequence. , The first SSB position of subframe 6, and the second SSB position of subframe 6. Before the overlapping SSB positions, the network device has completed a round of SSB transmission.
  • the network device will send the SSB based on the SSB transmission cycle. That is, SSB#0 and SSB#1 are sequentially transmitted at two SSB positions of subframe 5, and SSB#2 and SSB#3 are sequentially transmitted at two SSB positions of subframe 6.
  • the network device obtains a transmission opportunity within the DRS window.
  • the transmission opportunity includes 4 SSB positions, which are sequentially located at the second SSB position of subframe 4 and the first SSB position of subframe 5 , The second SSB position of subframe 5, and the first SSB position of subframe 6.
  • the network device Before the overlapping SSB positions, the network device has not completed a round of SSB transmission.
  • the network device will send the SSB based on the candidate SSB positions in the DRS window. That is, SSB#1 is sent at the SSB position of subframe 4, SSB#2 and SSB#3 are sent sequentially at the two SSB positions of subframe 5, and SSB# is sent at the first SSB position of subframe 6. 0.
  • the SSB transmission method at the overlapping SSB positions is determined, including:
  • first SSB and the second SSB have different QCL relationships, or that the first SSB and the second SSB do not have a QCL relationship, it is determined that the overlapping SSB positions are not used for SSB transmission ;and / or,
  • first SSB and the second SSB have the same QCL relationship, or that the first SSB and the second SSB have a QCL relationship, determine the position of the overlapping SSB to send the first SSB SSB or the second SSB.
  • the network device may determine whether the first SSB and the second SSB have the same QCL relationship , To determine how to send SSBs at overlapping SSB locations. For example, if the first SSB and the second SSB have different QCL relationships, the overlapping SSB positions may not be used for SSB transmission; if the first SSB and the second SSB have the same QCL relationship, Then the overlapping SSB positions can be used to transmit the first SSB or the second SSB.
  • the first SSB and the second SSB have the same QCL relationship, for example, both the first SSB and the second SSB have the QCL relationship with the same SSB, or the first SSB and the second SSB have a QCL relationship; the first The SSB and the second SSB have different QCL relationships.
  • the first SSB and the second SSB have QCL relationships with different SSBs, or the first SSB and the second SSB do not have a QCL relationship.
  • the SSB having the QCL relationship may be, for example, SSB transmitted using the same beam.
  • the network device when the network device performs SSB transmission on an unlicensed frequency band, when the SSB position in the DRS window and the SSB position determined based on the SSB transmission period overlap in the time domain, the network device determines based on a predetermined condition
  • the SSB is sent in such a way as to realize the effective transmission of the SSB, and does not impose constraints on the length of the DRS window and the SSB transmission period.
  • the candidate SSB positions in the DRS window in the embodiments of the present application can be used to transmit SSB, and in some cases, can also be used to transmit other information, such as RSI, CSI-RS, OSI, paging Message, PDCCH or PDSCH, etc.
  • FIG. 8 is a schematic flowchart of a method 800 for determining an SSB transmission mode according to an embodiment of the present application.
  • the method described in FIG. 3 may be performed by a communication device, which may include a network device or a terminal device.
  • the network device may be, for example, the network device 110 shown in FIG. 1, and the terminal device may be, for example, shown in FIG. ⁇ terminal ⁇ 120 ⁇ The terminal device 120.
  • the method 300 may include some or all of the following steps. among them:
  • the SSB is received or sent according to the length of the DRS window and the SSB transmission period.
  • the unlicensed frequency band when sending and receiving SSBs, network equipment and terminal equipment need to consider the SSB transmission period on the one hand, and the candidate SSB positions in the DRS window on the other hand. If the first SSB position is determined for transmission of the first SSB based on the SSB transmission period, and among the candidate SSB positions within the DRS window, the second SSB position is determined for transmission of the second SSB, then in order to make the first SSB position and the second SSB position The two SSB positions do not overlap, and the SSB transmission period and the length of the DRS window can be reasonably configured.
  • the position of the first SSB and the position of the second SSB overlap in the time domain, including that the position of the first SSB and the position of the second SSB overlap in the time domain partially or completely.
  • the first SSB position and the second SSB position partially overlap or completely overlap in the frequency domain.
  • the position of the first SSB and the position of the second SSB do not overlap in the frequency domain and the position of the first SSB and the position of the second SSB are within the same listening bandwidth in the frequency domain, where the listening bandwidth refers to The bandwidth of the channel detection performed before SSB transmission.
  • the SSB transmission period meets:
  • the length of the SSB transmission period is not equal to 5ms; or,
  • the length of the SSB transmission period equal to 5ms is an invalid configuration
  • the length of the SSB transmission period is greater than or equal to the length of the DRS window; or,
  • the resources in the non-SSB candidate position in the DRS window are also not used for SSB transmission.
  • the length of the DRS transmission window may be greater than 5 ms, such as 6 ms, 7 ms, 8 ms, and 9 ms, for example.
  • the period of the DRS transmission window may be, for example, 40 ms, 80 ms, and 160 ms.
  • the length of the SSB transmission period may be 10 ms, 20 ms, etc., for example.
  • the length of the DRS window meets:
  • the length of the DRS window is not greater than 5ms; or,
  • the length of the DRS window is greater than 5ms and the part exceeding 5ms is not used for SSB transmission in the DRS window.
  • the length of the DRS window can be less than or equal to 5ms; or, the length of the DRS window is greater than 5ms, but the part of the DRS window that exceeds 5ms is not used according to the candidates in the DRS window
  • the SSB transmission determined by the SSB position, that is, the effective time length for transmitting the SSB in the DRS window is 5 ms.
  • the effective time length may be a continuous 5 ms at any time position within the DRS window.
  • An embodiment of the present application also provides an SSB indication method.
  • the method may include:
  • the network device sends a third SSB to the terminal device, where the third SSB carries half-frame indication information.
  • the terminal device receives the field indication information sent by the network device.
  • the field indication information is used to indicate field information corresponding to the first candidate SSB position in the DRS window where the third SSB is located.
  • the field information may be used, for example, by the terminal device to determine whether the third SSB belongs to the first field (first 5 ms) or the second field (last 5 ms) of a radio frame.
  • the terminal device may determine the frame timing according to the field where the first candidate SSB position is located and the current SSB index.
  • the half-frame indication information may be carried in the PBCH of the third SSB, for example.
  • the embodiments of the present application also provide another SSB indication method.
  • the starting position of the DRS window may be fixed to the first half frame.
  • the PBCH received at the candidate SSB position in the DRS window may not include the half frame indication information.
  • the bit used for field indication in the PBCH received at the SSB position may be used to indicate other information, for example, to indicate the SSB position actually used to send the SSB in the DRS window.
  • the DRS window includes multiple candidate SSB positions, so the actual SSB position transmitted in the DRS window on the unlicensed frequency band is also uncertain
  • the network device needs to indicate to the terminal device the location of the SSB transmitted in the DRS window on the unlicensed band.
  • the network device selects the fourth SSB position in the DRS window with channel usage rights, and sends the fourth SSB at the fourth SSB position.
  • the fourth SSB may include, for example, PSS, SSS, and PBCH.
  • the first indication information is included in the PBCH, and the first indication information is used to indicate the SSB position of at least one SSB in a round of SSBs among the multiple candidate SSB positions in the DRS window.
  • the terminal device may obtain the SSB position of the actual transmission SSB according to the first indication information in the PBCH in the fourth SSB. In this way, the SSB position of the actual transmission SSB is indicated through the PBCH, and the dynamic indication of the SSB position can be achieved.
  • the first indication information may include at least one of the following information:
  • the SSB position for transmitting at least one SSB in the round of SSBs is a SSB position for transmitting at least one SSB in the round of SSBs
  • the first SSB position used to transmit the SSB Among the multiple candidate SSB positions in the DRS window, the first SSB position used to transmit the SSB;
  • the last SSB position used to transmit the SSB is a SSB position used to transmit the SSB
  • the SSB transmitted at the fourth SSB position is the position in the SSB round.
  • the first indication information includes a bitmap including multiple bits, and the multiple bits correspond to multiple candidate SSB positions in the DRS window, wherein each bit The value on is used to indicate whether its corresponding candidate SSB position is used to send the SSB.
  • the network device can flexibly indicate the location of the actual SSB sent in the DRS transmission window through the first indication information, so that the terminal device can obtain the location of the actually transmitted SSB in the DRS window according to the first indication information.
  • the DRS window on the unlicensed band may include multiple candidate SSB positions
  • the DRS window on the unlicensed band may also include multiple candidate channel state information reference signals (Channel State Information References, CSI -RS) position, and the position actually used for CSI-RS transmission within the DRS window is uncertain.
  • CSI -RS Channel State Information References
  • the initialization parameter generated by the CSI-RS sequence is determined according to the symbol number occupied by the CSI-RS and the slot number of the time slot where the symbol is located, then when the terminal When the device performs radio resource management (RRM) measurement of neighboring cells based on CSI-RS in the DRS window, it also needs to detect the symbol number occupied by the CSI-RS of the neighboring cell in the DRS window and the time slot where the symbol is located Slot numbering, which greatly increases the complexity of RRM measurement.
  • RRM radio resource management
  • the embodiments of the present application also provide a method for determining initialization parameters for CSI-RS sequence generation.
  • the method may include:
  • the network device sends the first CSI-RS to the terminal device through the first time domain position in the DRS window, where the first CSI-RS is a CSI-RS generated according to the first initialization parameter.
  • the terminal device receives the first CSI-RS sent by the network device.
  • the determination of the first initialization parameter is independent of the position of the first time domain.
  • the first time domain position includes a symbol used for the first CSI-RS transmission, and/or a time slot in which the symbol used for the first CSI-RS transmission is located.
  • the first initialization parameter is determined according to an index of a fifth SSB, where the fifth SSB is an SSB associated with the first CSI-RS, or the fifth SSB and the first CSI-RS have a QCL relationship .
  • the first initialization parameter is determined according to the second time domain position in the DRS window, where the second time domain position is preset by the standard or configured by the network device to the terminal device.
  • the DRS window includes a plurality of candidate positions that can be used to transmit the first CSI-RS, and the network device can determine one candidate position (for example, the first time-domain position) from the plurality of candidate positions according to the situation of obtaining the channel usage right Is used to send the first CSI-RS, wherein the initialization parameter corresponding to the first CSI-RS sequence is determined according to the second time domain position, and the second time domain position may be among the plurality of candidate positions A preset candidate position (for example, the first candidate position in the plurality of candidate positions or the last candidate position in the plurality of candidate positions).
  • the sequence of the first CSI-RS is the same and can be determined according to the second time-domain position.
  • the terminal device can determine the sequence of the first CSI-RS in the DRS window in advance, and then detect the first CSI-RS in the DRS window.
  • the second time domain position includes a preset symbol and/or a preset time slot.
  • the second time domain position is the symbol of the first candidate position of the first CSI-RS in the DRS window, and/or, the symbol of the first candidate position of the first CSI-RS in the DRS window is located Time slot.
  • the CSI-RS sequence generation method sent by the network device in the DRS window can be independent of the symbol number actually occupied by the CSI-RS transmission and the time slot number of the time slot where the symbol is located. Therefore, when the terminal device is in When performing RRM measurement of neighboring cells based on CSI-RS in the DRS window, there is no need to detect the symbol number occupied by the CSI-RS of the neighboring cell in the DRS window and the slot number of the time slot where the symbol is located, thereby avoiding the increase of unlicensed spectrum The complexity of RRM measurement based on CSI-RS in the upper DRS window.
  • SSB transmission in the embodiments of the present application includes “sending of SSB” and “receiving of SSB”.
  • sending SSB may be understood as “sending SSB”
  • receiving SSB may be understood as “receiving SSB” ".
  • the communication device 900 may be a terminal device or a network device. As shown in FIG. 9, the communication device 900 includes a processing unit 910. The processing unit 910 is used for:
  • the first SSB location is used to send the first SSB
  • the candidate SSB positions in the discovery reference signal DRS window determine a second SSB position, where the second SSB position is used to send the second SSB;
  • the network device determines the SSB transmission method based on predetermined conditions, thereby Realize the effective transmission of SSB, and will not bring constraints on the length of DRS window and SSB transmission period.
  • the processing unit 910 is specifically configured to: if at least one round of SSB transmission has been completed before the overlapped SSB position in the DRS window, determine that the overlapped SSB position is not used for SSB transmission; And/or, if at least one round of SSB transmission has not been completed before the overlapping SSB location in the DRS window, the overlapping SSB location is determined to be used to transmit the second SSB.
  • the processing unit 910 is specifically configured to: determine to send the second SSB at the overlapping SSB positions.
  • the processing unit 910 is specifically configured to: determine the overlapping SSB positions for sending the first SSB.
  • the processing unit 910 is specifically configured to: if at least one round of SSB transmission has been completed before the overlapping SSB position in the DRS window, determine the overlapping SSB position to send the first SSB; and/or, if at least one round of SSB transmission has not been completed before the overlapping SSB position in the DRS window, determining the overlapping SSB position for sending the second SSB.
  • the processing unit is specifically configured to: if the first SSB and the second SSB have different QCL relationships, determine that the overlapping SSB positions are not used for SSB transmission; and/or, if The first SSB and the second SSB have the same QCL relationship, and the overlapping SSB positions are determined to be used to send the first SSB or the second SSB.
  • the length of the SSB transmission period is 5 milliseconds.
  • the length of the DRS window is greater than 5 milliseconds.
  • the communication device 900 may perform the corresponding operations in the above method 300, and for the sake of brevity, no further details are provided here.
  • the communication device 900 may be a terminal device or a network device. As shown in FIG. 10, the terminal device 1000 includes a transceiver unit 1010. The transceiver unit 1010 is used for:
  • the SSB is received or sent.
  • the length of the DRS window is greater than 5 milliseconds, the length of the SSB transmission period is not equal to 5 milliseconds, or the length of the SSB transmission period is equal to 5 milliseconds is an invalid configuration, or the DRS window is not performed
  • the length of the SSB transmission period is equal to 5 milliseconds of SSB transmission.
  • the length of the DRS window is 6 ms, 7 ms, 8 ms, or 9 ms.
  • the length of the SSB transmission period is equal to 5 milliseconds
  • the length of the DRS window is not greater than 5 milliseconds, or the portion of the DRS window greater than 5 milliseconds and exceeding 5 milliseconds is not used for the SSB in the DRS window send.
  • the communication device 1000 may perform the corresponding operation in the above method 800, and for the sake of brevity, no further description is provided here.
  • FIG. 11 is a schematic structural diagram of a communication device 1100 provided by an embodiment of the present application.
  • the communication device 1100 shown in FIG. 11 includes a processor 1110, and the processor 1110 can call and run a computer program from the memory to implement the method in the embodiment of the present application.
  • the communication device 1100 may further include a memory 1120.
  • the processor 1110 can call and run the computer program from the memory 1120 to implement the method in the embodiments of the present application.
  • the memory 1120 may be a separate device independent of the processor 1110, or may be integrated in the processor 1110.
  • the communication device 1100 may further include a transceiver 1130, and the processor 1110 may control the transceiver 1130 to communicate with other devices, specifically, may send information or data to other devices, or receive other Information or data sent by the device.
  • the processor 1110 may control the transceiver 1130 to communicate with other devices, specifically, may send information or data to other devices, or receive other Information or data sent by the device.
  • the transceiver 1130 may include a transmitter and a receiver.
  • the transceiver 1130 may further include an antenna, and the number of antennas may be one or more.
  • the communication device 1100 may specifically be a network device according to an embodiment of the present application, and the communication device 1100 may implement the corresponding process implemented by the network device in each method of the embodiment of the present application. .
  • the communication device 1100 may specifically be a terminal device according to an embodiment of the present application, and the communication device 1100 may implement the corresponding process implemented by the terminal device in each method of the embodiment of the present application. .
  • FIG. 12 is a schematic structural diagram of a chip according to an embodiment of the present application.
  • the chip 1200 shown in FIG. 12 includes a processor 1210, and the processor 1210 can call and run a computer program from the memory to implement the method in the embodiments of the present application.
  • the chip 1200 may further include a memory 1220.
  • the processor 1210 can call and run a computer program from the memory 1220 to implement the method in the embodiments of the present application.
  • the memory 1220 may be a separate device independent of the processor 1210, or may be integrated in the processor 1210.
  • the chip 1200 may further include an input interface 1230.
  • the processor 1210 can control the input interface 1230 to communicate with other devices or chips. Specifically, it can obtain information or data sent by other devices or chips.
  • the chip 1200 may further include an output interface 1240.
  • the processor 1210 can control the output interface 1240 to communicate with other devices or chips. Specifically, it can output information or data to other devices or chips.
  • the chip may be applied to the network device in the embodiment of the present application, and the chip may implement the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • the chip may be applied to the network device in the embodiment of the present application, and the chip may implement the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • the chip can be applied to the terminal device in the embodiment of the present application, and the chip can implement the corresponding process implemented by the terminal device in each method of the embodiment of the present application.
  • chips mentioned in the embodiments of the present application may also be referred to as system-on-chips, system chips, chip systems, or system-on-chip chips.
  • the processor in the embodiment of the present application may be an integrated circuit chip, which has signal processing capabilities.
  • each step of the foregoing method embodiment may be completed by an integrated logic circuit of hardware in a processor or instructions in the form of software.
  • the above-mentioned processor may be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), an existing programmable gate array (Field Programmable Gate Array, FPGA), or other available Programming logic devices, discrete gates or transistor logic devices, discrete hardware components.
  • DSP Digital Signal Processor
  • ASIC Application Specific Integrated Circuit
  • FPGA Field Programmable Gate Array
  • the methods, steps, and logical block diagrams disclosed in the embodiments of the present application may be implemented or executed.
  • the general-purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
  • the steps of the method disclosed in conjunction with the embodiments of the present application may be directly embodied and executed by a hardware decoding processor, or may be executed and completed by a combination of hardware and software modules in the decoding processor.
  • the software module may be located in a mature storage medium in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, and registers.
  • the storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.
  • the memory in the embodiments of the present application may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory may be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electronically Erasable programmable read only memory (Electrically, EPROM, EEPROM) or flash memory.
  • the volatile memory may be a random access memory (Random Access Memory, RAM), which is used as an external cache.
  • RAM static random access memory
  • DRAM dynamic random access memory
  • DRAM synchronous dynamic random access memory
  • SDRAM double data rate synchronous dynamic random access memory
  • Double Data Rate SDRAM DDR SDRAM
  • enhanced SDRAM ESDRAM
  • Synchlink DRAM SLDRAM
  • Direct Rambus RAM Direct Rambus RAM
  • the memory in the embodiments of the present application may also be static random access memory (Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), synchronous Dynamic random access memory (Synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (Double Data Rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous connection dynamic Random access memory (Synch Link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM) and so on. That is to say, the memories in the embodiments of the present application are intended to include but are not limited to these and any other suitable types of memories.
  • the communication system 1300 includes a network device 1310 and a terminal device 1320.
  • the network device 1310 and the terminal device 1320 are used to: determine the first SSB position based on the SSB transmission period, and the first SSB position is used to transmit the first SSB; in the candidate SSB position in the DRS window of the discovery reference signal , Determine the second SSB location, the second SSB location is used to transmit the second SSB; if the first SSB location and the second SSB location overlap in the time domain, determine the overlapping SSB location SSB transmission method .
  • the network device 1310 and the terminal device 1320 are configured to: receive or send the SSB according to the length of the discovery reference signal DRS window and the SSB transmission period.
  • the network device 1310 can be used to implement the corresponding functions implemented by the network device in the above method 300, and the composition of the network device 1310 can be as shown in the communication device 900 in FIG. .
  • the terminal device 1320 can be used to implement the corresponding functions implemented by the terminal device in the above method 800, and the composition of the terminal device 1320 can be as shown in the communication device 1000 in FIG. 10. .
  • Embodiments of the present application also provide a computer-readable storage medium for storing computer programs.
  • the computer-readable storage medium may be applied to the network device in the embodiments of the present application, and the computer program causes the computer to execute the corresponding process implemented by the network device in each method of the embodiments of the present application.
  • the computer-readable storage medium can be applied to the terminal device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding process implemented by the terminal device in each method of the embodiments of the present application. Repeat.
  • An embodiment of the present application also provides a computer program product, including computer program instructions.
  • the computer program product can be applied to the network device in the embodiments of the present application, and the computer program instructions cause the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • the computer program product can be applied to the terminal device in the embodiments of the present application, and the computer program instructions cause the computer to execute the corresponding process implemented by the terminal device in each method of the embodiment of the present application. Repeat again.
  • An embodiment of the present application also provides a computer program.
  • the computer program can be applied to the network device in the embodiments of the present application.
  • the computer program runs on the computer, the computer is allowed to execute the corresponding process implemented by the network device in each method of the embodiment of the present application. , Will not repeat them here.
  • the computer program can be applied to the terminal device in the embodiments of the present application.
  • the computer program runs on the computer, the computer is allowed to execute the corresponding process implemented by the terminal device in each method of the embodiments of the present application. , Will not repeat them here.
  • B corresponding to (corresponding to) A means that B is associated with A, and B can be determined according to A.
  • determining B based on A does not mean determining B based on A alone, and B may also be determined based on A and/or other information.
  • the disclosed system, device, and method may be implemented in other ways.
  • the device embodiments described above are only schematic.
  • the division of the unit is only a division of logical functions.
  • there may be another division manner for example, multiple units or components may be combined or may Integration into another system, or some features can be ignored, or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium.
  • the technical solution of the present application essentially or part of the contribution to the existing technology or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to enable a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in the embodiments of the present application.
  • the foregoing storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program code .

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Abstract

本申请公开了一种SSB传输方式的确定方法和设备，能够实现非授权频段上SSB的有效传输。该方法包括：基于SSB传输周期，确定第一SSB位置，所述第一SSB位置用于传输第一SSB；在发现参考信号DRS窗口内的候选的SSB位置中，确定第二SSB位置，所述第二SSB位置用于传输第二SSB；若所述第一SSB位置与所述第二SSB位置在时域上重叠，确定重叠的SSB位置上的SSB传输方式。

Description

同步信号块SSB传输方式的确定方法和设备 技术领域
本申请实施例涉及通信领域，并且更具体地，涉及SSB传输方式的确定方法和设备。
背景技术
在5G系统或称新无线(New Radio，NR)系统中，支持非授权频段(unlicensed spectrum)上的数据传输。在非授权频段上进行通信时，需要基于先听后说(Listen Before Talk，LBT)的原则。即，在非授权频段的信道上进行信号发送之前，需要先进行信道检测，当获得信道使用权后，才能进行信号发送。
非授权频谱上的发现参考信号(Discovery Reference Signal，DRS)传输窗口(简称DRS窗口)内，可以配置多个的候选的同步信号块(Synchronizing Signal/PBCH Block，SSB或SS/PBCH Block)位置，因此DRS窗口的长度可能大于SSB传输周期的长度，这就可能导致DRS窗口内的SSB位置与基于SSB传输周期确定的SSB位置之间重叠。这时，如何保证SSB的有效传输就成为亟待解决的问题。
发明内容
本申请实施例提供了一种块SSB传输方式的确定方法和设备，能够实现非授权频段上SSB的有效传输。
第一方面，提供了一种同步信号块SSB的传输方法，包括：基于SSB传输周期，确定第一SSB位置，所述第一SSB位置用于传输第一SSB；在发现参考信号DRS窗口内的候选的SSB位置中，确定第二SSB位置，所述第二SSB位置用于传输第二SSB；若所述第一SSB位置与所述第二SSB位置在时域上重叠，确定重叠的SSB位置上的SSB传输方式。
第二方面，提供了一种同步信号块SSB的传输方法，包括：根据发现参考信号DRS窗口的长度，以及SSB传输周期，进行SSB的接收或发送。
第三方面，提供了一种通信设备，该通信设备可以执行上述第一方面或第一方面的任意可选的实现方式中的方法。具体地，该通信设备可以包括用于执行上述第一方面或第一方面的任意可能的实现方式中的方法的功能模块。
第四方面，提供了一种通信设备，该通信设备可以执行上述第二方面或第二方面的任意可选的实现方式中的方法。具体地，该终端设备可以包括用于执行上述第二方面或第二方面的任意可能的实现方式中的方法的功能模块。
第五方面，提供了一种通信设备，包括处理器和存储器。该存储器用于存储计算机程序，该处理器用于调用并运行该存储器中存储的计算机程序，执行上述第一方面或第一方面的任意可能的实现方式中的方法。
第六方面，提供了一种通信设备，包括处理器和存储器。该存储器用于存储计算机程序，该处理器用于调用并运行该存储器中存储的计算机程序，执行上述第二方面或第二方面的任意可能的实现方式中的方法。
第七方面，提供了一种芯片，用于实现上述第一方面或第一方面的任意可能的实现方式中的方法。具体地，该芯片包括处理器，用于从存储器中调用并运行计算机程序，使得安装有该芯片的设备执行如上述第一方面或第一方面的任意可能的实现方式中的方法。
第八方面，提供了一种芯片，用于实现上述第二方面或第二方面的任意可能的实现方式中的方法。具体地，该芯片包括处理器，用于从存储器中调用并运行计算机程序，使得安装有该芯片的设备执行如上述第二方面或第二方面的任意可能的实现方式中的方法。
第九方面，提供了一种计算机可读存储介质，用于存储计算机程序，该计算机程序使得计算机执行上述第一方面或第一方面的任意可能的实现方式中的方法。
第十方面，提供了一种计算机可读存储介质，用于存储计算机程序，该计算机程序使得计算机执行上述第二方面或第二方面的任意可能的实现方式中的方法。
第十一方面，提供了一种计算机程序产品，包括计算机程序指令，该计算机程序指令使得计算机执行上述第一方面或第一方面的任意可能的实现方式中的方法。
第十二方面，提供了一种计算机程序产品，包括计算机程序指令，该计算机程序指令使得计算机执行上述第二方面或第二方面的任意可能的实现方式中的方法。
第十三方面，提供了一种计算机程序，当其在计算机上运行时，使得计算机执行上述第一方面或第一方面的任意可能的实现方式中的方法。
第十四方面，提供了一种计算机程序，当其在计算机上运行时，使得计算机执行上述第二方面或第二方面的任意可能的实现方式中的方法。
第十五方面，提供了一种通信系统，包括通信设备。
其中，所述通信设备用于：基于SSB传输周期，确定第一SSB位置，所述第一SSB位置用于传输第一SSB；在发现参考信号DRS窗口内的候选的SSB位置中，确定第二SSB位置，所述第二SSB位置用于传输第二SSB；若所述第一SSB位置与所述第二SSB位置在时域上重叠，确定重叠的SSB位置上的SSB传输方式。
通过上述技术方案，网络设备在非授权频段上进行SSB发送时，当DRS窗口内的SSB位置与基于SSB传输周期确定的SSB位置在时域上发生重叠时，网络设备基于预定条件判断SSB的发送方式，从而实现SSB的有效传输，且不会对DRS窗口的长度和SSB传输周期带来约束。
附图说明
图1是本申请实施例应用的一种可能的无线通信系统的示意图。
图2是DRS窗口和SSB传输周期的示意图。
图3是本申请实施例的SSB传输方式的确定方法的示意性流程图。
图4是本申请实施例的SSB传输方式的示意图。
图5是本申请实施例的SSB传输方式的示意图。
图6是本申请实施例的SSB传输方式的示意图
图7是本申请实施例的通信设备的示意性框图。
图8是本申请实施例的通信设备的示意性框图。
图9是本申请实施例的通信设备的示意性结构图。
图10是本申请实施例的通信设备的示意性结构图。
图11是本申请实施例的芯片的示意性结构图。
图12是本申请实施例的芯片的示意性结构图。
图13是本申请实施例的通信系统的示意性结构图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
本申请实施例的技术方案可以应用于各种通信系统，例如：全球移动通讯(Global System of Mobile communication，GSM)系统、码分多址(Code Division Multiple Access，CDMA)系统、宽带码分多址(Wideband Code Division Multiple Access，WCDMA)系统、通用分组无线业务(General Packet Radio Service，GPRS)、长期演进(Long Term Evolution，LTE)系统、LTE频分双工(Frequency Division Duplex，FDD)系统、LTE时分双工(Time Division Duplex，TDD)系统、先进的长期演进(Advanced long term evolution，LTE-A) 系统、新无线(New Radio，NR)系统、NR系统的演进系统、非授权频段上的LTE(LTE-based access to unlicensed spectrum，LTE-U)系统、非授权频段上的NR(NR-based access to unlicensed spectrum，NR-U)系统、通用移动通信系统(Universal Mobile Telecommunication System，UMTS)、全球互联微波接入(Worldwide Interoperability for Microwave Access，WiMAX)通信系统、无线局域网(Wireless Local Area Networks，WLAN)、无线保真(Wireless Fidelity，WiFi)、下一代通信系统或其他通信系统等。
通常来说，传统的通信系统支持的连接数有限，也易于实现，然而，随着通信技术的发展，移动通信系统将不仅支持传统的通信，还将支持例如，设备到设备(Device to Device，D2D)通信，机器到机器(Machine to Machine，M2M)通信，机器类型通信(Machine Type Communication，MTC)，以及车辆间(Vehicle to Vehicle，V2V)通信等，本申请实施例也可以应用于这些通信系统。
可选地，本申请实施例中的通信系统可以应用于载波聚合(Carrier Aggregation，CA)、双连接(Dual Connectivity，DC)、独立(Standalone，SA)组网等场景中。
示例性的，本申请实施例应用的通信系统100如图1所示。该无线通信系统100可以包括网络设备110。网络设备110可以是与终端设备通信的设备。网络设备110可以为特定的地理区域提供通信覆盖，并且可以与位于该覆盖区域内的终端设备进行通信。可选地，该网络设备100可以是GSM系统或CDMA系统中的基站(Base Transceiver Station，BTS)，也可以是WCDMA系统中的基站(NodeB，NB)，还可以是LTE系统中的演进型基站(Evolutional Node B，eNB或eNodeB)，或者是NR系统中的网络侧设备，或者是云无线接入网络(Cloud Radio Access Network，CRAN)中的无线控制器，或者该网络设备可以为中继站、接入点、车载设备、可穿戴设备、下一代网络中的网络侧设备或者未来演进的公共陆地移动网络(Public Land Mobile Network，PLMN)中的网络设备等。
该无线通信系统100还包括位于网络设备110覆盖范围内的至少一个终端设备120。终端设备120可以是移动的或者固定的。可选地，终端设备120可以指接入终端、用户设备(User Equipment，UE)、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。接入终端可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol，SIP)电话、无线本地环路(Wireless Local Loop，WLL)站、个人数字处理(Personal Digital Assistant，PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备、未来5G网络中的终端设备或者未来演进的PLMN中的终端设备等。其中，可选地，终端设备120之间也可以进行终端直连(Device to Device，D2D)通信。
网络设备110可以为小区提供服务，终端设备120通过该小区使用的传输资源(例如，频域资源，或者说，频谱资源)与网络设备110进行通信，该小区可以是网络设备110(例如基站)对应的小区，小区可以属于宏基站，也可以属于小小区(Small cell)对应的基站，这里的小小区可以包括例如城市小区(Metro cell)、微小区(Micro cell)、微微小区(Pico cell)、毫微微小区(Femto cell)等，这些小小区具有覆盖范围小、发射功率低的特点，适用于提供高速率的数据传输服务。
图1示例性地示出了一个网络设备和两个终端设备，可选地，该无线通信系统100可以包括多个网络设备并且每个网络设备的覆盖范围内可以包括其它数量的终端设备，本申请实施例对此不做限定。此外，该无线通信系统100例如还可以包括网络控制器、移动管理实体等其他网络实体，本申请实施例对此不作限定。
以下，将可以用于传输SSB的位置简称为“SSB位置”，每个SSB位置上可以传输一个SSB。
可选地，SSB可以包括主同步信号(Primary Synchronization Signal，PSS)和辅同步信号(Secondary Synchronization Signal，SSS)、物理广播信道(Physical Broadcast Channel，PBCH)。
可选地，DRS窗口除了可以用于传输SSB，还可以用于传输以下信息中的至少一个：调度剩余最小系统信息(Remaining Minimum System Information，RMSI)的控制信道资源集合、RMSI、信道状态信息参考信号(Channel Status Information Reference Signal，CSI-RS)、其他系统信息(Other System Information，OSI)和寻呼消息。
在非授权频段上，一个DRS窗口内的候选的SSB位置的数量，可以大于网络设备实际发送的SSB的数量。对于每个DRS窗口，网络设备可以根据该DRS窗口内获得信道使用权的结果例如LBT结果，来确定使用哪些SSB位置传输SSB，不同DRS窗口内实际传输SSB的SSB位置可能不同。
DRS窗口内的候选的SSB位置与SSB索引之间存在对应关系，每个候选的SSB位置上可以发送的SSB并非任意的SSB，而是与该SSB位置对应的SSB索引所指示的SSB，相同索引的SSB之间具有QCL关系。其中，候选的SSB位置可以为协议约定或者网络设备配置的。
可选地，不同索引的SSB之间也可以具有QCL关系。其中，该QCL关系可以为协议约定或者网络设备配置的。例如，网络设备配置发送4个SSB，其中索引为0的SSB和索引为4的SSB具有QCL关系，索引为1的SSB和索引为5的SSB具有QCL关系，等等。
可选地，可以根据子载波间隔的大小配置DRS窗口内的SSB位置的数量。如果子载波间隔为15kHz时，DRS窗口内候选的SSB位置为16个；如果子载波间隔为30kHz时，DRS窗口内候选的SSB位置为32个；如果子载波间隔为60kHz时，DRS窗口内候选的SSB位置为64个。
如图2所示的DRS窗口，该DRS窗口的长度为8ms，该DRS窗口的周期为40ms，即每个40ms的前8ms为一个DRS窗口。一个DRS窗口包括8个子帧，如图2所示为子帧0至子帧7，其中每个子帧内包括两个候选的SSB位置。每个候选的SSB位置上标有编号，编号相同的SSB位置可以用于发送索引相同的SSB，或者说，编号相同的SSB位置可以用于发送具有(Quasi-Co-Location，QCL)关系的SSB。
例如在图2中，SSB位置0与SSB#0对应，因此每个SSB位置0用来发送SSB#0，或者说，SSB位置0上发送的SSB具有QCL关系；SSB位置1与SSB#1对应，因此每个SSB位置1用来发送SSB#1，或者说，SSB位置1上发送的SSB具有QCL关系；SSB位置2与SSB#2对应，因此每个SSB位置2用来发送SSB#2，或者说，SSB位置2上发送的SSB具有QCL关系；SSB位置3与SSB#3对应，因此每个SSB位置3用来发送SSB#3，或者说，SSB位置3上发送的SSB具有QCL关系。这样的对应关系可以是协议约定或者网络设备配置的。每个SSB只在其对应的SSB位置上发送。其中#0至#3表示SSB索引。
在该DRS窗口内，网络设备可以在获得信道使用权的SSB位置上，发送对应的SSB。例如，在子帧5中的SSB位置2上发送SSB#2、在子帧5中的SSB位置3上发送SSB#3、在子帧6的SSB位置0上发送SSB#0、以及在子帧6的SSB位置1上发送SSB#1。
但是，网络设备在发送SSB时也需要满足其传输周期，如图2所示，SSB传输周期为5ms，即每个5ms的前2ms内需要传输一轮SSB(SSB#0至SSB#3为一轮SSB)。网络设备需要基于该SSB传输周期进行SSB的发送，例如，在子帧5中的SSB位置0上发送SSB#0、在子帧5中的SSB位置1上发送SSB#1、在子帧6的SSB位置2上发送SSB#2、以及在子帧6的SSB位置3上发送SSB#3。
以子帧5为例，可以看出，如果根据DRS窗口内的候选的SSB位置，网络设备应当在子帧5内的SSB位置上分别发送SSB#2和SSB#3，而如果根据SSB传输周期判断，网络设备应当在子帧5内的SSB位置上分别发送SSB#0和SSB#1。也就是说，当DRS窗口的长度大于SSB传输周期的长度时，可能导致DRS窗口内的SSB位置与基于SSB传输周期确定的SSB位置之间重叠，并且DRS窗口内的SSB位置与基于SSB传输周期 确定的SSB位置分别用于传输不同索引的SSB。这时，网络设备需要确定在重叠的SSB位置上如何进行SSB的发送。
本申请实施例中，网络设备在非授权频段上进行SSB发送时，当DRS窗口内的SSB位置与基于SSB传输周期确定的SSB位置在时域上发生重叠时，网络设备基于预定条件判断SSB的发送方式，从而实现非授权频段上SSB的有效传输，且不会对DRS窗口的长度和SSB传输周期带来约束。
图3是本申请实施例的SSB传输方式的确定方法300的示意性流程图。图3所述的方法可以由通信设备执行，该通信设备可以包括网络设备或者终端设备，该网络设备例如可以为图1中所示的网络设备110，该终端设备例如可以为图1中所示的终端设备120。如图3所示，该SSB的传输方法300可以包括以下步骤中的部分或全部。其中：
在310中，基于SSB传输周期，确定第一SSB位置，该第一SSB位置用于传输第一SSB。
在320中，在DRS窗口内的候选的SSB位置中，确定第二SSB位置，该第二SSB位置用于传输第二SSB。
在330中，若该第一SSB位置与该第二SSB位置在时域上重叠，确定重叠的SSB位置上的SSB传输方式。
在非授权频段上，网络设备在发送SSB时，一方面需要基于SSB的传输周期，另一方面也需要考虑DRS窗口内的候选的SSB位置。当获得传输机会时，如果网络设备按照SSB传输周期确定在第一SSB位置上可以发送第一SSB，并且确定在DRS窗口内的第二SSB位置上可以上发送第二SSB，那么当第一SSB位置和第二SSB位置重叠时，网络设备需要确定在重叠的SSB位置上如何发送SSB。
同样，终端设备在接收SSB时，也需要考虑SSB的传输周期和DRS窗口内的候选的SSB位置。如果终端设备按照SSB传输周期确定在第一SSB位置上接收第一SSB，并且确定在DRS窗口内的第二SSB位置上接收第二SSB，那么当第一SSB位置和第二SSB位置重叠时，终端设备需要确定在重叠的SSB位置上如何接收SSB。
应理解，这里所述的第一SSB位置与第二SSB位置在时域上重叠，包括第一SSB位置与第二SSB位置在时域上部分重叠或者全部重叠。
可选地，第一SSB位置与第二SSB位置在频域上部分重叠或全部重叠。
可选地，第一SSB位置与第二SSB位置在频域上不重叠且第一SSB位置与第二SSB位置在频域上位于相同的侦听带宽内，其中，侦听带宽指网络设备在SSB发送前进行的信道检测的带宽。
该实施例对SSB传输周期的长度、DRS窗口的长度和DRS窗口的周期不做任何限定。该SSB传输周期的长度例如可以为5毫秒(ms)、10ms、20ms等。该DRS传输窗口的长度例如可以大于5ms，比如为6ms、7ms、8ms和9ms等。该DRS传输窗口的周期例如可以为40ms、80ms、160ms等。
本申请实施例提供五种方式用来确定在重叠的SSB位置上如何进行SSB传输。下面结合图4至图7进行描述，图4至图7仅以网络设备发送SSB为例，如无特别说明，终端设备接收SSB的过程可以参考针对网络设备的相关描述。
方式1
在330中，确定重叠的SSB位置上的SSB传输方式，包括：
如果在该DRS窗口内该重叠的SSB位置之前已完成至少一轮SSB的传输，确定该重叠的SSB位置不用于进行SSB的传输；和/或，
如果在该DRS窗口内该重叠的SSB位置之前未完成至少一轮SSB的传输，确定该重叠的SSB位置用于传输该第二SSB。
该实施例中，当DRS窗口内的候选的SSB位置与基于SSB传输周期确定的SSB位置在时域上发生重叠，网络设备可以根据DRS窗口内的候选的SSB位置，进行SSB的 发送。并且，进一步地，网络设备可以根据在重叠的SSB位置之前是否已经完成至少一轮SSB的发送，来判断是否需要在重叠的SSB位置上发送SSB。相应地，终端设备在进行SSB的接收时，可以根据在重叠的SSB位置之前是否已经完成至少一个SSB的接收，或根据网络设备对于DRS窗口内的SSB发送情况的指示信息，来判断是否需要在重叠的SSB位置上接收SSB。
以图4为例，假设SSB的子载波间隔为15kHz，DRS窗口的长度为8ms，SSB传输周期的长度为5ms。其中，编号相同的SSB位置可以用于发送索引相同的SSB，或者说，编号相同的SSB位置可以用于发送具有QCL关系的SSB。例如，SSB位置0用于发送SSB#0，SSB位置1用于发送SSB#1，SSB位置2用于发送SSB#2，SSB位置3用于发送SSB#3。
网络设备基于DRS窗口内的候选的SSB位置，可以确定子帧5的两个SSB位置上分别用于发送SSB#2和SSB#3，以及子帧6的两个SSB位置分别用于发送SSB#0和SSB#1；而网络设备基于SSB传输周期，可以确定子帧5的两个SSB位置分别用于发送SSB#0和SSB#1，以及子帧6的两个SSB位置分别用于发送SSB#2和SSB#3。也就是说，重叠且编号不同的SSB位置包括子帧5和子帧6上的SSB位置。
在该DRS窗口内，如果在该重叠的SSB位置之前，已完成至少一轮SSB的发送，网络设备可以确定子帧5和子帧6上的两个SSB位置不用于发送SSB，如图4的情况1所示。在该DRS窗口内，如果在该重叠的SSB位置之前，还未完成一轮SSB的发送，网络设备可以根据DRS窗口内的候选的SSB位置，在子帧5的两个SSB位置分别发送SSB#2和SSB#3，以及在子帧6的第一个SSB位置发送SSB#0，如图4的情况2所示。
可选地，本申请实施例中的“一轮SSB”根据网络设备配置的SSB发送个数来确定。例如图2所示，一轮SSB可以包括SSB#0至SSB#3。又例如，当网络设备配置发送8个SSB时，一轮SSB索引可以包括SSB#0至SSB#7。
方式2
在330中，确定重叠的SSB位置上的SSB传输方式，包括：确定该重叠的SSB位置用于传输该第二SSB。
该实施例中，当基于SSB传输周期确定的SSB位置，与基于DRS窗口内的候选的SSB位置确定的SSB位置重叠时，网络设备总是根据DRS窗口内的候选的SSB位置，进行SSB的发送。
以图5为例，假设SSB的子载波间隔为15kHz，DRS窗口的长度为8ms，SSB传输周期的长度为5ms。其中，编号相同的SSB位置可以用于发送索引相同的SSB，或者说，编号相同的SSB位置可以用于发送具有QCL关系的SSB。例如，SSB位置0用于发送SSB#0，SSB位置1用于发送SSB#1，SSB位置2用于发送SSB#2，SSB位置3用于发送SSB#3。
网络设备基于DRS窗口内的候选的SSB位置，可以确定子帧5的两个SSB位置分别用于发送SSB#2和SSB#3，以及子帧6的两个SSB位置上分别用于发送SSB#0和SSB#1。网络设备基于SSB传输周期，可以确定子帧5的两个SSB位置分别用于发送SSB#0和SSB#1，以及子帧6的两个SSB位置分别用于发送SSB#2和SSB#3。也就是说，重叠且编号不同的SSB位置包括子帧5和子帧6上的SSB位置。
在图5的情况1中，网络设备在DRS窗口内获得SSB传输机会，该传输机会包括包括4个SSB位置，依次位于子帧5的第1个SSB位置、子帧5的第2个SSB位置、子帧6的第1个SSB位置、以及子帧6的第2个SSB位置。在该重叠的SSB位置之前，网络设备已完成一轮SSB的发送。
这时，网络设备会基于DRS窗口内的候选的SSB位置，进行SSB的发送，即，在子帧5的两个SSB位置上依次发送SSB#2和SSB#3，以及在子帧6的两个SSB位置上依次发送SSB#0和SSB#1。
在图5的情况2中，网络设备在DRS窗口内获得SSB传输机会，该传输机会包括5个SSB位置，依次位于子帧4的第2个SSB位置、子帧5的第1个SSB位置、子帧5的第2个SSB位置、子帧6的第1个SSB位置、以及子帧6的第2个SSB位置。在该重叠的SSB位置之前，网络设备未完成一轮SSB的发送。
这时，网络设备仍会基于DRS窗口内的候选的SSB位置，进行SSB的发送。即，在子帧4的SSB位置上发送SSB#1，在子帧5的两个SSB位置上依次发送SSB#2和SSB#3，以及在子帧6的两个SSB位置上依次发送SSB#0和SSB#1。
方式3
在330中，确定重叠的SSB位置上的SSB传输方式，包括：确定该重叠的SSB位置用于传输该第一SSB。
该实施例中，当基于SSB传输周期确定的SSB位置，与基于DRS窗口内的候选的SSB位置确定的SSB位置重叠时，网络设备总是基于SSB传输周期进行SSB的发送。
以图6为例，假设SSB的子载波间隔为15kHz，DRS窗口的长度为8ms，SSB传输周期的长度为5ms。其中，编号相同的SSB位置可以用于发送索引相同的SSB，或者说，编号相同的SSB位置可以用于发送具有QCL关系的SSB。例如，SSB位置0用于发送SSB#0，SSB位置1用于发送SSB#1，SSB位置2用于发送SSB#2，SSB位置3用于发送SSB#3。
网络设备基于DRS窗口内的候选的SSB位置，可以确定子帧5的两个SSB位置上分别用于发送SSB#2和SSB#3，以及子帧6的两个SSB位置上分别用于发送SSB#0和SSB#1。网络设备基于SSB传输周期，可以确定子帧5的两个SSB位置分别用于发送SSB#0和SSB#1，以及子帧6的两个SSB位置分别用于发送SSB#2和SSB#3。也就是说，重叠且编号不同的SSB位置包括子帧5和子帧6上的SSB位置。
在图6的情况1中，网络设备在DRS窗口内获得SSB传输机会，该传输机会包括包括4个SSB位置，依次位于子帧5的第1个SSB位置、子帧5的第2个SSB位置、子帧6的第1个SSB位置、以及子帧6的第2个SSB位置。在该重叠的SSB位置之前，网络设备已完成一轮SSB的发送。
这时，网络设备会基于SSB传输周期进行SSB的发送，即，在子帧5的两个SSB位置上依次发送SSB#0和SSB#1，以及在子帧6的两个SSB位置上依次发送SSB#2和SSB#3。
在图6的情况2中，网络设备在DRS窗口内获得SSB传输机会，该传输机会包括5个SSB位置，依次位于子帧4的第2个SSB位置、子帧5的第1个SSB位置、子帧5的第2个SSB位置、子帧6的第1个SSB位置、以及子帧6的第2个SSB位置。在该重叠的SSB位置之前，网络设备未完成一轮SSB的发送。
这时，网络设备会基于SSB传输周期进行SSB的发送。即，在子帧4的SSB位置上发送SSB#1，在子帧5的两个SSB位置上依次发送SSB#0和SSB#1，以及在子帧6的两个SSB位置上依次发送SSB#2和SSB#3。
方式4
在330中，确定重叠的SSB位置上的SSB传输方式，包括：
如果在该DRS窗口内该重叠的SSB位置之前已完成至少一轮SSB的传输，确定该重叠的SSB位置用于传输该第一SSB；和/或，
如果在该DRS窗口内该重叠的SSB位置之前还未完成至少一轮SSB的传输，确定该重叠的SSB位置用于传输该第二SSB。
该实施例中，当DRS窗口内的SSB位置与基于SSB传输周期确定的SSB位置在时域上发生重叠时，网络设备可以根据在重叠的SSB位置之前是否已经完成至少一轮SSB的发送，来判断在重叠的SSB位置上如何发送SSB。相应地，终端设备在进行SSB的接收时，可以根据在重叠的SSB位置之前是否已经完成至少一轮SSB的接收，或根据网络 设备对于DRS窗口内的SSB发送情况的指示信息，来判断在重叠的SSB位置上如何接收SSB。
例如，如果在重叠的SSB位置之前已完成至少一轮SSB的发送，该重叠的SSB位置用于发送该第二SSB；如果在重叠的SSB位置之前未完成至少一轮SSB的发送，该重叠的SSB位置用于发送该第一SSB。
又例如，如果在重叠的SSB位置之前已完成至少一轮SSB的发送，该重叠的SSB位置用于发送该第一SSB；如果在重叠的SSB位置之前未完成至少一轮SSB的发送，该重叠的SSB位置用于发送该第二SSB。
以图7为例，假设SSB的子载波间隔为15kHz，DRS窗口的长度为8ms，SSB传输周期的长度为5ms。其中，编号相同的SSB位置可以用于发送索引相同的SSB，或者说，编号相同的SSB位置可以用于发送具有QCL关系的SSB。例如，SSB位置0用于发送SSB#0，SSB位置1用于发送SSB#1，SSB位置2用于发送SSB#2，SSB位置3用于发送SSB#3。
网络设备基于DRS窗口内的候选的SSB位置，可以确定子帧5的两个SSB位置上分别用于发送SSB#2和SSB#3，以及子帧6的两个SSB位置上分别用于发送SSB#0和SSB#1。网络设备基于SSB传输周期，可以确定子帧5的两个SSB位置分别用于发送SSB#0和SSB#1，以及子帧6的两个SSB位置分别用于发送SSB#2和SSB#3。也就是说，重叠且编号不同的SSB位置包括子帧5和子帧6上的SSB位置。
在图7的情况1中，网络设备在DRS窗口内获得SSB传输机会，该传输机会包括包括4个SSB位置，依次为子帧5的第1个SSB位置、子帧5的第2个SSB位置、子帧6的第1个SSB位置、以及子帧6的第2个SSB位置。在该重叠的SSB位置之前，网络设备已完成一轮SSB的发送。
这时，由于该重叠的SSB位置之前，网络设备已完成一轮SSB的发送，因此，网络设备会基于SSB传输周期进行SSB的发送。即，在子帧5的两个SSB位置上依次发送SSB#0和SSB#1，以及在子帧6的两个SSB位置上依次发送SSB#2和SSB#3。
在图7的情况2中，网络设备在DRS窗口内获得一个传输机会，该传输机会包括包括4个SSB位置，依次位于子帧4的第2个SSB位置、子帧5的第1个SSB位置、子帧5的第2个SSB位置、以及子帧6的第1个SSB位置。在该重叠的SSB位置之前，网络设备未完成一轮SSB的发送。
这时，由于该重叠的SSB位置之前，网络设备未完成一轮SSB的发送，因此，网络设备会基于DRS窗口内的候选的SSB位置，进行SSB的发送。即，在子帧4的SSB位置上发送SSB#1，在子帧5的两个SSB位置上依次发送SSB#2和SSB#3，以及在子帧6的第一个SSB位置上发送SSB#0。
方式5
在330中，确定重叠的SSB位置上的SSB传输方式，包括：
如果所述第一SSB和所述第二SSB具有不同的QCL关系，或者说，所述第一SSB和所述第二SSB不具有QCL关系，确定所述重叠的SSB位置不用于进行SSB的发送；和/或，
如果所述第一SSB和所述第二SSB具有相同的QCL关系，或者说，所述第一SSB和所述第二SSB具有QCL关系，确定所述重叠的SSB位置用于发送所述第一SSB或所述第二SSB。
该实施例中，当DRS窗口内的SSB位置与基于SSB传输周期确定的SSB位置在时域上发生重叠时，网络设备可以根据该第一SSB和该第二SSB之间是否具有相同的QCL关系，来判断在重叠的SSB位置上如何发送SSB。例如，如果第一SSB和所述第二SSB具有不同的QCL关系，那么该重叠的SSB位置可以不用于进行SSB的传输；如果该第一SSB和该第二SSB之间具有相同的QCL关系，那么该重叠的SSB位置可以用于传输 该第一SSB或者该第二SSB。
第一SSB与第二SSB具有相同的QCL关系，例如可以是第一SSB与第二SSB均与相同的SSB具有QCL关系，或者说，第一SSB与第二SSB之间具有QCL关系；第一SSB与第二SSB具有不同的QCL关系，例如可以是第一SSB与第二SSB与不同的SSB具有QCL关系，或者说，第一SSB与第二SSB之间不具有QCL关系。其中，具有QCL关系的SSB例如可以是使用相同波束(beam)发送的SSB。
因此，本申请实施例中，网络设备在非授权频段上进行SSB发送时，当DRS窗口内的SSB位置与基于SSB传输周期确定的SSB位置在时域上发生重叠时，网络设备基于预定条件判断SSB的发送方式，从而实现SSB的有效传输，且不会对DRS窗口的长度和SSB传输周期带来约束。
应理解，本申请实施例中DRS窗口内的候选的SSB位置可以用于传输SSB，在一些情况下，也可以用于传输其他信息，例如可以用于传输RMSI、CSI-RS、OSI、寻呼消息、PDCCH或PDSCH等。
图8是本申请实施例的SSB传输方式的确定方法800的示意性流程图。图3所述的方法可以由通信设备执行，该通信设备可以包括网络设备或者终端设备，该网络设备例如可以为图1中所示的网络设备110，该终端设备例如可以为图1中所示的终端设备120。如图3所示，该方法300可以包括以下步骤中的部分或全部。其中：
在810中，根据DRS窗口的长度，以及SSB传输周期，进行SSB的接收或发送。
在非授权频段上，网络设备和终端设备在发送和接收SSB时，一方面需要考虑SSB的传输周期，另一方面也需要考虑DRS窗口内的候选的SSB位置。如果基于SSB传输周期确定第一SSB位置用于传输第一SSB，并且在DRS窗口内的候选的SSB位置中，确定第二SSB位置用于传输第二SSB，那么为了使第一SSB位置和第二SSB位置不重叠，可以对SSB传输周期和DRS窗口的长度进行合理配置。
应理解，这里所述的第一SSB位置与第二SSB位置在时域上重叠，包括第一SSB位置与第二SSB位置在时域上部分重叠或者全部重叠。
可选地，第一SSB位置与第二SSB位置在频域上部分重叠或全部重叠。
可选地，第一SSB位置与第二SSB位置在频域上不重叠且第一SSB位置与第二SSB位置在频域上位于相同的侦听带宽内，其中，侦听带宽指网络设备在SSB发送前进行的信道检测的带宽。
例如图2所示，DRS窗口的长度为8ms，SSB传输周期的长度为5ms时，可能发生SSB位置的冲突。
可选地，在一种实现方式中，若DRS窗口的长度大于5毫秒，SSB传输周期满足：
该SSB传输周期的长度不等于5ms；或者，
该SSB传输周期的长度等于5ms是无效配置；或者，
该SSB传输周期的长度大于或等于该DRS窗口的长度；或者，
该DRS窗口内不进行SSB传输周期为5ms的SSB传输。
当然，该DRS窗口内的非SSB候选位置的资源也不用于SSB传输。
此时，DRS传输窗口的长度例如可以大于5ms，比如6ms、7ms、8ms、9ms等。该DRS传输窗口的周期例如可以为40ms、80ms、160ms等。
该SSB传输周期的长度例如可以为10ms、20ms等。
可选地，在另一种实现方式中，若SSB传输周期的长度等于5毫秒，DRS窗口的长度满足：
该DRS窗口的长度不大于5ms；或者，
该DRS窗口的长度大于5ms且超出5ms的部分不用于该DRS窗口内的SSB发送。
换句话说，当SSB传输周期的长度等于5毫秒时，DRS窗口的长度可以小于或等于5ms；或者，DRS窗口的长度大于5ms，但DRS窗口内超出5ms的部分不用于根据DRS 窗口内的候选SSB位置确定的SSB传输，即DRS窗口内用于传输SSB的有效时间长度为5ms。
可选地，该有效时间长度可以是DRS窗口内的任意时间位置的连续5ms。
通过该方法，网络设备在非授权频段上进行SSB发送时，可以避免基于DRS窗口内的SSB位置与基于SSB传输周期确定的SSB位置在时域上发生重叠。
本申请实施例还提供了一种SSB的指示方法。该方法可以包括：
网络设备向终端设备发送第三SSB，所述第三SSB中携带半帧指示信息。相应地，终端设备接收网络设备发送的该半帧指示信息。
其中，该半帧指示信息用于指示该第三SSB所在的DRS窗口内的第一个候选的SSB位置对应的半帧信息。
该半帧信息例如可以用于终端设备确定该第三SSB属于一个无线帧的前半帧(前5ms)还是后半帧(后5ms)。
例如，假设该DRS窗口包括子帧0至子帧7，如果第三SSB是通过DRS窗口内的SSB候选位置发送的，那么无论该SSB候选位置位于前半帧还是后半帧，该半帧指示信息均用于指示前半帧(即该DRS窗口内第一个候选的SSB位置所在的半帧)。终端设备根据该第一个的候选SSB位置所在的半帧和当前的SSB索引可以确定帧定时。
该半帧指示信息例如可以承载于该第三SSB的PBCH中。
本申请实施例还提供了另一种SSB的指示方法。可选地，DRS窗口的起始位置可以固定为前半帧，这时，在DRS窗口内的候选的SSB位置上接收到的PBCH中可以不包括半帧指示信息。进一步地，可选地，该SSB位置上接收到的PBCH中的用于半帧指示的比特位可以用来指示其他信息，例如用来指示该DRS窗口内实际用于发送SSB的SSB位置等。
通过上述方式，能够实现对SSB位置的有效指示。
本申请实施例中，考虑到非授权频段上获得信道使用权的不确定性，DRS窗口内包括多个候选的SSB位置，因此非授权频段上DRS窗口内实际传输的SSB的位置也具有不确定性，网络设备需要向终端设备指示在非授权频段上DRS窗口内传输的SSB的位置。
在一种可能的实现方式中，网络设备选择具有信道使用权的DRS窗口内的第四SSB位置，并在该第四SSB位置上发送第四SSB。该第四SSB例如可以包括PSS、SSS和PBCH等。其中，该PBCH中包括第一指示信息，该第一指示信息用于指示该DRS窗口内的多个候选的SSB位置中用于发送一轮SSB中的至少一个SSB的SSB位置。终端设备根据该第四SSB中的PBCH中的第一指示信息，可以获取实际传输SSB的SSB位置。这样，通过PBCH来指示实际传输SSB的SSB位置，可以实现SSB位置的动态指示。
可选地，该第一指示信息可以包括以下信息中的至少一种：
该DRS窗口内的多个候选的SSB位置中，用于传输该轮SSB中的至少一个SSB的SSB位置；
该DRS窗口内的多个候选的SSB位置中，第一个用于传输SSB的SSB位置；
该DRS窗口内的多个候选的SSB位置中，最后一个用于传输SSB的SSB位置；
该DRS窗口内的多个候选的SSB位置中，第一个传输的SSB的索引；
该DRS窗口内的多个候选的SSB位置中，最后一个传输的SSB的索引；
该DRS窗口内的多个候选的SSB位置中，第一个传输的SSB在该轮SSB中的位置；
该DRS窗口内的多个候选的SSB位置中，最后一个传输的SSB在该轮SSB中的位置；
该第四SSB位置上传输的SSB，在该轮SSB中的位置。
或者，可选地，该第一指示信息包括比特图，该比特图中包括多比特位，该多个比特位与该DRS窗口内的多个候选的SSB位置一一对应，其中每个比特位上的值用于指示 其对应的候选的SSB位置是否用于发送SSB。
该实施例中，网络设备可以通过该第一指示信息灵活地指示该DRS传输窗口内实际发送SSB的位置，使得终端设备能够根据该第一指示信息获取该DRS窗口内实际传输的SSB的位置。
另外，考虑到非授权频段上DRS窗口内可以包括多个候选的SSB位置，相应地，非授权频段上DRS窗口内也可以包括多个候选的信道状态信息参考信号(Channel State Information Reference Signals，CSI-RS)位置，而DRS窗口内实际用于CSI-RS传输的位置具有不确定性。如果延用现有技术中CSI-RS序列的生成方式，即根据该CSI-RS占用的符号编号以及该符号所在时隙的时隙编号来确定该CSI-RS序列生成的初始化参数，那么当终端设备在DRS窗口内基于CSI-RS进行邻区的无线资源管理(Radio Resource Management，RRM)测量时，还需要检测邻区的CSI-RS在DRS窗口内占用的符号编号以及该符号所在时隙的时隙编号，从而极大地增加了RRM测量的复杂度。
因此，本申请实施例还提供了一种CSI-RS序列生成的初始化参数的确定方法。该方法可以包括：
网络设备通过DRS窗口内的第一时域位置向终端设备发送第一CSI-RS，所述第一CSI-RS是根据第一初始化参数生成的CSI-RS。相应地，终端设备接收网络设备发送的该第一CSI-RS。
可选地，该第一初始化参数的确定和该第一时域位置无关。
可选地，该第一时域位置包括用于该第一CSI-RS传输的符号，和/或，用于该第一CSI-RS传输的符号所在的时隙。
可选地，该第一初始化参数根据第五SSB的索引确定，其中，该第五SSB为该第一CSI-RS关联的SSB，或者，该第五SSB与该第一CSI-RS具有QCL关系。
可选地，该第一初始化参数根据DRS窗口内的第二时域位置确定，其中，第二时域位置为标准预设的或网络设备配置给终端设备的。例如，DRS窗口内包括多个可用于传输第一CSI-RS的候选位置，网络设备根据获得信道使用权的情况，可以从该多个候选位置中确定一个候选位置(例如第一时域位置)用来发送该第一CSI-RS，其中，该第一CSI-RS的序列对应的初始化参数是根据第二时域位置来确定的，该第二时域位置可以为该多个候选位置中的一个预设的候选位置(例如该多个候选位置中的第一个候选位置或该多个候选位置中的最后一个候选位置)。也就是说，无论该第一CSI-RS是通过该多个候选位置中的哪一个候选位置发送，该第一CSI-RS的序列均相同且可以根据第二时域位置确定。通过该方式，终端设备可以提前确定该DRS窗口内第一CSI-RS的序列，再在DRS窗口内检测该第一CSI-RS。
其中，该第二时域位置包括预设的符号，和/或，预设的时隙。例如，该第二时域位置为DRS窗口内第一个该第一CSI-RS的候选位置的符号，和/或，DRS窗口内第一个该第一CSI-RS的候选位置的符号所在的时隙。
该实施例中，网络设备在DRS窗口内发送的CSI-RS的序列生成方式，可以和该CSI-RS实际传输占用的符号编号以及该符号所在时隙的时隙编号无关，因此当终端设备在DRS窗口内基于CSI-RS进行邻区的RRM测量时，不需要检测邻区的CSI-RS在DRS窗口内占用的符号编号以及该符号所在时隙的时隙编号，从而避免了增加非授权频谱上DRS窗口内基于CSI-RS进行RRM测量的复杂度。
需要说明的是，在不冲突的前提下，本申请描述的各个实施例和/或各个实施例中的技术特征可以任意的相互组合，组合之后得到的技术方案也应落入本申请的保护范围。
应理解，本申请实施例中的“SSB传输”包括“SSB的发送”和“SSB的接收”。例如，当本申请实施例的方法由网络设备执行时，“传输SSB”可以理解为“发送SSB”，当本申请实施例的方法由终端设备执行时，“传输SSB”可以理解为“接收SSB”。
还应理解，在本申请的各种实施例中，上述各过程的序号的大小并不意味着执行顺 序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本申请实施例的实施过程构成任何限定。
上文中详细描述了根据本申请实施例的通信方法，下面将结合图8至图13，描述根据本申请实施例的装置，方法实施例所描述的技术特征适用于以下装置实施例。
图9是根据本申请实施例的通信设备900的示意性框图。该通信设备900可以为终端设备或网络设备。如图9所示，该通信设备900包括处理单元910。其中，该处理单元910用于：
基于SSB传输周期，确定第一SSB位置，所述第一SSB位置用于发送第一SSB；
在发现参考信号DRS窗口内的候选的SSB位置中，确定第二SSB位置，所述第二SSB位置用于发送第二SSB；
若所述第一SSB位置与所述第二SSB位置在时域上重叠，确定重叠的SSB位置上的SSB发送方式。
因此，网络设备在非授权频段上进行SSB发送时，当DRS窗口内的SSB位置与基于SSB传输周期确定的SSB位置在时域上发生重叠时，网络设备基于预定条件判断SSB的发送方式，从而实现SSB的有效传输，且不会对DRS窗口的长度和SSB传输周期带来约束。
可选地，所述处理单元910具体用于：如果在所述DRS窗口内所述重叠的SSB位置之前已完成至少一轮SSB的发送，确定所述重叠的SSB位置不用于进行SSB的发送；和/或，如果在所述DRS窗口内所述重叠的SSB位置之前未完成至少一轮SSB的发送，确定所述重叠的SSB位置用于发送所述第二SSB。
可选地，所述处理单元910具体用于：确定所述重叠的SSB位置上发送所述第二SSB。
可选地，所述处理单元910具体用于：确定所述重叠的SSB位置用于发送所述第一SSB。
可选地，所述处理单元910具体用于：如果在所述DRS窗口内所述重叠的SSB位置之前已完成至少一轮SSB的发送，确定所述重叠的SSB位置用于发送所述第一SSB；和/或，如果在所述DRS窗口内所述重叠的SSB位置之前还未完成至少一轮SSB的发送，确定所述重叠的SSB位置用于发送所述第二SSB。
可选地，所述处理单元具体用于：如果所述第一SSB和所述第二SSB具有不同的QCL关系，确定所述重叠的SSB位置不用于进行SSB的发送；和/或，如果所述第一SSB和所述第二SSB具有相同的QCL关系，确定所述重叠的SSB位置用于发送所述第一SSB或所述第二SSB。
可选地，所述SSB传输周期的长度为5毫秒。
可选地，所述DRS窗口的长度大于5毫秒。
应理解，该通信设备900可以执行上述方法300中的相应操作，为了简洁，在此不再赘述。
图10是根据本申请实施例的通信设备1000的示意性框图。该通信设备900可以为终端设备或网络设备。如图10所示，该终端设备1000包括收发单元1010。其中，该收发单元1010用于：
根据发现参考信号DRS窗口的长度，以及SSB传输周期，进行SSB的接收或发送。
因此，通过该方法，网络设备在非授权频段上进行SSB发送时，可以避免基于DRS窗口内的SSB位置与基于SSB传输周期确定的SSB位置在时域上发生重叠。
可选地，若所述DRS窗口的长度大于5毫秒，所述SSB传输周期的长度不等于5毫秒，或者所述SSB传输周期的长度等于5毫秒是无效配置，或者所述DRS窗口内不进行所述SSB传输周期的长度等于5毫秒的SSB传输。
可选地，所述DRS窗口的长度为6毫秒、7毫秒、8毫秒或者9毫秒。
可选地，若所述SSB传输周期的长度等于5毫秒，所述DRS窗口的长度不大于5毫秒，或者所述DRS窗口大于5毫秒且超出5毫秒的部分不用于所述DRS窗口内的SSB发送。
应理解，该通信设备1000可以执行上述方法800中的相应操作，为了简洁，在此不再赘述。
图11是本申请实施例提供的一种通信设备1100示意性结构图。图11所示的通信设备1100包括处理器1110，处理器1110可以从存储器中调用并运行计算机程序，以实现本申请实施例中的方法。
可选地，如图11所示，通信设备1100还可以包括存储器1120。其中，处理器1110可以从存储器1120中调用并运行计算机程序，以实现本申请实施例中的方法。
其中，存储器1120可以是独立于处理器1110的一个单独的器件，也可以集成在处理器1110中。
可选地，如图11所示，通信设备1100还可以包括收发器1130，处理器1110可以控制该收发器1130与其他设备进行通信，具体地，可以向其他设备发送信息或数据，或接收其他设备发送的信息或数据。
其中，收发器1130可以包括发射机和接收机。收发器1130还可以进一步包括天线，天线的数量可以为一个或多个。
可选地，该通信设备1100具体可为本申请实施例的网络设备，并且该通信设备1100可以实现本申请实施例的各个方法中由网络设备实现的相应流程，为了简洁，在此不再赘述。
可选地，该通信设备1100具体可为本申请实施例的终端设备，并且该通信设备1100可以实现本申请实施例的各个方法中由终端设备实现的相应流程，为了简洁，在此不再赘述。
图12是本申请实施例的芯片的示意性结构图。图12所示的芯片1200包括处理器1210，处理器1210可以从存储器中调用并运行计算机程序，以实现本申请实施例中的方法。
可选地，如图12所示，芯片1200还可以包括存储器1220。其中，处理器1210可以从存储器1220中调用并运行计算机程序，以实现本申请实施例中的方法。
其中，存储器1220可以是独立于处理器1210的一个单独的器件，也可以集成在处理器1210中。
可选地，该芯片1200还可以包括输入接口1230。其中，处理器1210可以控制该输入接口1230与其他设备或芯片进行通信，具体地，可以获取其他设备或芯片发送的信息或数据。
可选地，该芯片1200还可以包括输出接口1240。其中，处理器1210可以控制该输出接口1240与其他设备或芯片进行通信，具体地，可以向其他设备或芯片输出信息或数据。
可选地，该芯片可应用于本申请实施例中的网络设备，并且该芯片可以实现本申请实施例的各个方法中由网络设备实现的相应流程，为了简洁，在此不再赘述。
可选地，该芯片可应用于本申请实施例中的终端设备，并且该芯片可以实现本申请实施例的各个方法中由终端设备实现的相应流程，为了简洁，在此不再赘述。
应理解，本申请实施例提到的芯片还可以称为系统级芯片、系统芯片、芯片系统或片上系统芯片等。
应理解，本申请实施例的处理器可能是一种集成电路芯片，具有信号的处理能力。在实现过程中，上述方法实施例的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器可以是通用处理器、数字信号处理器(Digital Signal Processor，DSP)、专用集成电路(Application Specific Integrated Circuit，ASIC)、现成 可编程门阵列(Field Programmable Gate Array，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本申请实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成，或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器，处理器读取存储器中的信息，结合其硬件完成上述方法的步骤。
还应理解，本申请实施例中的存储器可以是易失性存储器或非易失性存储器，或者可以包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(Read-Only Memory，ROM)、可编程只读存储器(Programmable ROM，PROM)、可擦除可编程只读存储器(Erasable PROM，EPROM)、电可擦除可编程只读存储器(Electrically EPROM，EEPROM)或闪存。易失性存储器可以是随机存取存储器(Random Access Memory，RAM)，其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的RAM可用，例如静态随机存取存储器(Static RAM，SRAM)、动态随机存取存储器(Dynamic RAM，DRAM)、同步动态随机存取存储器(Synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data Rate SDRAM，DDR SDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(Synchlink DRAM，SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM，DR RAM)。
其中，上述存储器为示例性但不是限制性说明，例如，本申请实施例中的存储器还可以是静态随机存取存储器(Static RAM，SRAM)、动态随机存取存储器(Dynamic RAM，DRAM)、同步动态随机存取存储器(Synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data Rate SDRAM，DDR SDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(Synch Link DRAM，SLDRAM)以及直接内存总线随机存取存储器(Direct Rambus RAM，DR RAM)等等。也就是说，本申请实施例中的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
图13是根据本申请实施例的通信系统1300的示意性框图。如图13所示，该通信系统1300包括网络设备1310和终端设备1320。
其中，该网络设备1310和终端设备1320用于：基于SSB传输周期，确定第一SSB位置，所述第一SSB位置用于传输第一SSB；在发现参考信号DRS窗口内的候选的SSB位置中，确定第二SSB位置，所述第二SSB位置用于传输第二SSB；若所述第一SSB位置与所述第二SSB位置在时域上重叠，确定重叠的SSB位置上的SSB传输方式。
或者，该网络设备1310和终端设备1320用于：根据发现参考信号DRS窗口的长度，以及SSB传输周期，进行SSB的接收或发送。
其中，该网络设备1310可以用于实现上述方法300中由网络设备实现的相应的功能，以及该网络设备1310的组成可以如图9中的通信设备900所示，为了简洁，在此不再赘述。
其中，该终端设备1320可以用于实现上述方法800中由终端设备实现的相应的功能，以及该终端设备1320的组成可以如图10中的通信设备1000所示，为了简洁，在此不再赘述。
本申请实施例还提供了一种计算机可读存储介质，用于存储计算机程序。可选的，该计算机可读存储介质可应用于本申请实施例中的网络设备，并且该计算机程序使得计算机执行本申请实施例的各个方法中由网络设备实现的相应流程，为了简洁，不再赘述。可选地，该计算机可读存储介质可应用于本申请实施例中的终端设备，并且该计算机程 序使得计算机执行本申请实施例的各个方法中由终端设备实现的相应流程，为了简洁，不再赘述。
本申请实施例还提供了一种计算机程序产品，包括计算机程序指令。可选的，该计算机程序产品可应用于本申请实施例中的网络设备，并且该计算机程序指令使得计算机执行本申请实施例的各个方法中由网络设备实现的相应流程，为了简洁，在此不再赘述。可选地，该计算机程序产品可应用于本申请实施例中的终端设备，并且该计算机程序指令使得计算机执行本申请实施例的各个方法中由终端设备实现的相应流程，为了简洁，在此不再赘述。
本申请实施例还提供了一种计算机程序。可选的，该计算机程序可应用于本申请实施例中的网络设备，当该计算机程序在计算机上运行时，使得计算机执行本申请实施例的各个方法中由网络设备实现的相应流程，为了简洁，在此不再赘述。可选地，该计算机程序可应用于本申请实施例中的终端设备，当该计算机程序在计算机上运行时，使得计算机执行本申请实施例的各个方法中由终端设备实现的相应流程，为了简洁，在此不再赘述。
应理解，本文中术语“系统”和“网络”在本文中常被可互换使用。本文中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
还应理解，在本发明实施例中，“与A相应(对应)的B”表示B与A相关联，根据A可以确定B。但还应理解，根据A确定B并不意味着仅仅根据A确定B，还可以根据A和/或其它信息确定B。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，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。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，该单元的划分，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，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read-Only Memory， ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
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，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，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所述以权利要求的保护范围为准。

Claims (30)

  1. 一种同步信号块SSB传输方式的确定方法，其特征在于，所述方法包括：
    基于SSB传输周期，确定第一SSB位置，所述第一SSB位置用于传输第一SSB；
    在发现参考信号DRS窗口内的候选的SSB位置中，确定第二SSB位置，所述第二SSB位置用于传输第二SSB；
    若所述第一SSB位置与所述第二SSB位置在时域上重叠，确定重叠的SSB位置上的SSB传输方式。
  2. 根据权利要求1所述的方法，其特征在于，所述确定重叠的SSB位置上的SSB传输方式，包括：
    如果在所述DRS窗口内所述重叠的SSB位置之前已完成至少一轮SSB的传输，确定所述重叠的SSB位置不用于进行SSB的传输；和/或，
    如果在所述DRS窗口内所述重叠的SSB位置之前未完成至少一轮SSB的传输，确定所述重叠的SSB位置用于传输所述第二SSB。
  3. 根据权利要求1所述的方法，其特征在于，所述确定重叠的SSB位置上的SSB传输方式，包括：
    确定所述重叠的SSB位置用于传输所述第二SSB。
  4. 根据权利要求1所述的方法，其特征在于，所述确定重叠的SSB位置上的SSB传输方式，包括：
    确定所述重叠的SSB位置用于传输所述第一SSB。
  5. 根据权利要求1所述的方法，其特征在于，所述确定重叠的SSB位置上的SSB传输方式，包括：
    如果在所述DRS窗口内所述重叠的SSB位置之前已完成至少一轮SSB的传输，确定所述重叠的SSB位置用于传输所述第一SSB；和/或，
    如果在所述DRS窗口内所述重叠的SSB位置之前还未完成至少一轮SSB的传输，确定所述重叠的SSB位置用于传输所述第二SSB。
  6. 根据权利要求1所述的方法，其特征在于，所述确定重叠的SSB位置上的SSB传输方式，包括：
    如果所述第一SSB和所述第二SSB具有不同的准共址QCL关系，确定所述重叠的SSB位置不用于进行SSB的发送；和/或，
    如果所述第一SSB和所述第二SSB具有相同的QCL关系，确定所述重叠的SSB位置用于发送所述第一SSB或所述第二SSB。
  7. 根据权利要求1至6中任一项所述的方法，其特征在于，所述SSB传输周期的长度为5毫秒。
  8. 根据权利要求1至7中任一项所述的方法，其特征在于，所述DRS窗口的长度大于5毫秒。
  9. 一种同步信号块SSB的传输方法，其特征在于，所述方法包括：
    根据发现参考信号DRS窗口的长度，以及SSB传输周期，进行SSB的接收或发送。
  10. 根据权利要求9所述的方法，其特征在于，所述DRS窗口的长度大于5毫秒，
    所述SSB传输周期的长度不等于5毫秒，或者所述SSB传输周期的长度等于5毫秒是无效配置，或者所述SSB传输周期的长度大于或等于所述DRS窗口的长度，或者所述DRS窗口内不进行所述SSB传输周期的长度等于5毫秒的SSB传输。
  11. 根据权利要求9或10所述的方法，其特征在于，所述DRS窗口的长度为6毫秒、7毫秒、8毫秒或者9毫秒。
  12. 根据权利要求9所述的方法，其特征在于，所述SSB传输周期的长度等于5毫秒，
    所述DRS窗口的长度不大于5毫秒，或者所述DRS窗口大于5毫秒且超出5毫秒 的部分不用于所述DRS窗口内的SSB发送。
  13. 一种通信设备，其特征在于，所述通信设备包括：
    处理单元，用于基于SSB传输周期，确定第一SSB位置，所述第一SSB位置用于传输第一SSB；
    所述处理单元还用于，在发现参考信号DRS窗口内的候选的SSB位置中，确定第二SSB位置，所述第二SSB位置用于发送第二SSB；
    所述处理单元还用于，若所述第一SSB位置与所述第二SSB位置在时域上重叠，确定重叠的SSB位置上的SSB发送方式。
  14. 根据权利要求13所述的通信设备，其特征在于，所述处理单元具体用于：
    如果在所述DRS窗口内所述重叠的SSB位置之前已完成至少一轮SSB的传输，确定所述重叠的SSB位置不用于进行SSB的传输；和/或，
    如果在所述DRS窗口内所述重叠的SSB位置之前未完成至少一轮SSB的传输，确定所述重叠的SSB位置用于传输所述第二SSB。
  15. 根据权利要求13所述的通信设备，其特征在于，所述处理单元具体用于：
    确定所述重叠的SSB位置用于传输所述第二SSB。
  16. 根据权利要求13所述的通信设备，其特征在于，所述处理单元具体用于：
    确定所述重叠的SSB位置用于传输所述第一SSB。
  17. 根据权利要求13所述的通信设备，其特征在于，所述处理单元具体用于：
    如果在所述DRS窗口内所述重叠的SSB位置之前已完成至少一轮SSB的传输，确定所述重叠的SSB位置用于传输所述第一SSB；和/或，
    如果在所述DRS窗口内所述重叠的SSB位置之前还未完成至少一轮SSB的传输，确定所述重叠的SSB位置用于传输所述第二SSB。
  18. 根据权利要求13所述的通信设备，其特征在于，所述处理单元具体用于：
    如果所述第一SSB和所述第二SSB具有不同的准共址QCL关系，确定所述重叠的SSB位置不用于进行SSB的发送；和/或，
    如果所述第一SSB和所述第二SSB具有相同的QCL关系，确定所述重叠的SSB位置用于发送所述第一SSB或所述第二SSB。
  19. 根据权利要求13至18中任一项所述的通信设备，其特征在于，所述SSB传输周期的长度为5毫秒。
  20. 根据权利要求13至18中任一项所述的通信设备，其特征在于，所述DRS窗口的长度大于5毫秒。
  21. 一种通信设备，其特征在于，所述通信设备包括：
    收发单元，用于根据发现参考信号DRS窗口的长度，以及SSB传输周期，进行SSB的接收或发送。
  22. 根据权利要求21所述的通信设备，其特征在于，若所述DRS窗口的长度大于5毫秒，
    所述SSB传输周期的长度不等于5毫秒，或者所述SSB传输周期的长度等于5毫秒是无效配置，或者所述SSB传输周期的长度大于或等于所述DRS窗口的长度，或者所述DRS窗口内不进行所述SSB传输周期的长度等于5毫秒的SSB传输。
  23. 根据权利要求21或22所述的通信设备，其特征在于，所述DRS窗口的长度为6毫秒、7毫秒、8毫秒或者9毫秒。
  24. 根据权利要求23所述的通信设备，其特征在于，若所述SSB传输周期的长度等于5毫秒，
    所述DRS窗口的长度不大于5毫秒，或者所述DRS窗口大于5毫秒且超出5毫秒的部分不用于所述DRS窗口内的SSB发送。
  25. 一种通信设备，其特征在于，所述通信设备包括处理器和存储器，所述存储器用 于存储计算机程序，所述处理器用于调用并运行所述存储器中存储的计算机程序，以执行权利要求1至8中任一项所述的方法，或者执行权利要求9至12中任一项所述的方法。
  26. 一种芯片，其特征在于，所述芯片包括处理器，所述处理器用于从存储器中调用并运行计算机程序，使得安装有所述芯片的设备执行权利要求1至8中任一项所述的方法，或者执行权利要求9至12中任一项所述的方法。
  27. 一种计算机可读存储介质，其特征在于，用于存储计算机程序，所述计算机程序使得计算机执行权利要求1至8中任一项所述的方法，或者执行权利要求9至12中任一项所述的方法。
  28. 一种计算机程序产品，其特征在于，包括计算机程序指令，所述计算机程序指令使得计算机执行权利要求1至8中任一项所述的方法，或者执行权利要求9至12中任一项所述的方法。
  29. 一种计算机程序，其特征在于，所述计算机程序使得计算机执行权利要求1至8中任一项所述的方法，或者执行权利要求9至12中任一项所述的方法。
  30. 一种通信系统，其特征在于，包括如权利要求13至20中任意一项所述的通信设备，或者包括如权利要求21至24中任意一项所述的通信设备。
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