WO2020143432A1 - 一种同步广播信息发送、检测方法及装置 - Google Patents

一种同步广播信息发送、检测方法及装置 Download PDF

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Publication number
WO2020143432A1
WO2020143432A1 PCT/CN2019/127210 CN2019127210W WO2020143432A1 WO 2020143432 A1 WO2020143432 A1 WO 2020143432A1 CN 2019127210 W CN2019127210 W CN 2019127210W WO 2020143432 A1 WO2020143432 A1 WO 2020143432A1
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ssb
symbol
signal
occupied
sss
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PCT/CN2019/127210
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English (en)
French (fr)
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任晓涛
赵锐
郑方政
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电信科学技术研究院有限公司
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Publication of WO2020143432A1 publication Critical patent/WO2020143432A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/001—Synchronization between nodes

Definitions

  • the present application relates to the field of communication technology, and in particular to a method and device for sending and detecting synchronous broadcast information.
  • the terminal uses short-range communication port 5 (Proximity Communication Port 5, PC 5 port ) Direct communication.
  • the method of establishing synchronization is that one terminal A sends synchronization and broadcast signals, and the other terminal B receives the synchronization and broadcast signals sent by terminal A. Once terminal B receives and demodulates successfully, the two terminals can establish synchronization, which is the next step. The communication is ready.
  • Cyclic prefix Orthogonal Frequency Division Multiplexing (Cyclic Prefix-Orthogonal Frequency Division Multiplexing, CP-OFDM) waveform may be used in the direct link (Sidelink) communication of the V2X system, or a discrete Fourier transform spread spectrum positive Discrete Fourier Transform-spread-Orthogonal Frequency Division Multiplexing (DFT-s-OFDM) waveform, due to the limitation of data multiplexing under the DFT-s-OFDM waveform, it is necessary to design different for different waveforms Straight-through link-synchronization signal and physical broadcast channel block (Sidelink Synchronization Signal and Physical Broadcast Channel Block, S-SSB), which will bring the complexity of S-SSB design and the complexity of standard setting, and give the subsequent products Implementation brings complexity.
  • S-SSB Seglic Prefix-Orthogonal Frequency Division Multiplexing
  • Embodiments of the present application provide a method and an apparatus for sending and detecting synchronous broadcast information.
  • the S-SSB generated by the first device includes at least S-PSS, S-SSS, and PSBCH signals, but does not include demodulation.
  • Reference Demodulation, Reference, Signal, DMRS
  • DMRS DFT-s-OFDM
  • a method for transmitting synchronous broadcast information including: a first device generating a through link-synchronization signal and a physical broadcast channel block S-SSB; wherein, the S-SSB includes at least a through link-primary synchronization signal
  • the S-PSS, the through link-secondary synchronization signal S-SSS, and the physical through link broadcast channel PSBCH signal do not include the demodulation reference signal DMRS; the first device sends the S-SSB.
  • the S-SSS is used to demodulate the PSBCH signal.
  • sending the S-SSB by the first device includes: the first device sends two of the S-SSBs in a time slot, one of the symbols occupied by the two of the S-SSBs Between is the data transmission area, the data transmission area includes at least two symbols.
  • the data transmission area and the S-SSB located in front of the data transmission area belong to different receiving devices, and the first symbol in the data transmission area is used for automatic gain control AGC.
  • the S-PSS and the S-SSS in the S-SSB each occupy 1 symbol, and the PSBCH signal in the S-SSB occupies 2 symbols.
  • the symbols occupied by the S-PSS are not adjacent to the symbols occupied by the S-SSS, and the two symbols occupied by the PSBCH signal are not adjacent.
  • the first symbol in the S-SSB is occupied by the S-PSS
  • the second symbol in the S-SSB is occupied by the PSBCH signal
  • the third symbol in the S-SSB Symbols are occupied by the S-SSS
  • the fourth symbol in the S-SSB is occupied by the PSBCH signal
  • the first symbol in the S-SSB is occupied by the PSBCH signal
  • the The second symbol in the S-SSB is occupied by the S-SSS
  • the third symbol in the S-SSB is occupied by the PSBCH signal
  • the fourth symbol in the S-SSB is occupied by the S -PSS occupancy.
  • the S-SSB further includes an AGC signal, the AGC signal occupies one symbol, and the symbol occupied by the AGC is located in a symbol used to transmit the S-PSS, the S-SSS, and the PSBCH signal prior to.
  • the method further includes: the first device sends the AGC signal, and the AGC signal occupies one symbol.
  • sending the S-SSB by the first device includes: the first device sends the S-SSB through a straight-through link, and the straight-through link is orthogonal frequency division multiplexing using a cyclic prefix A straight-through link for CP-OPDM waveforms, or a straight-through link using discrete Fourier transform spread spectrum orthogonal frequency division multiplexing DFT-s-OFDM waveforms.
  • the first device is a terminal device.
  • a method for detecting synchronous broadcast information including: a second device receiving a through link-synchronization signal and a physical broadcast channel block S-SSB, where the S-SSB includes at least a through link-primary synchronization signal
  • the S-PSS, the through link-secondary synchronization signal S-SSS, and the physical through link broadcast channel PSBCH signal do not include the demodulation reference signal DMRS; the second device detects the S-SSB.
  • the second device detecting the synchronous broadcast information in the S-SSB includes: the second device according to the S-SSS in the S-SSB to the PSBCH in the S-SSB The signal is demodulated.
  • the receiving of the S-SSB by the second device includes: the second device receives two of the S-SSBs in a time slot, and between the symbols occupied by the two S-SSBs is A data transmission area.
  • the data transmission area includes at least two symbols.
  • the data transmission area and the S-SSB located in front of the data transmission area belong to different sending devices, and the first symbol in the data transmission area is used for automatic gain control AGC.
  • the S-PSS and the S-SSS in the S-SSB each occupy 1 symbol, and the PSBCH signal in the S-SSB occupies 2 symbols.
  • the symbols occupied by the S-PSS are not adjacent to the symbols occupied by the S-SSS, and the two symbols occupied by the PSBCH signal are not adjacent.
  • the first symbol in the S-SSB is occupied by the S-PSS
  • the second symbol in the S-SSB is occupied by the PSBCH signal
  • the third symbol in the S-SSB Symbols are occupied by the S-SSS
  • the fourth symbol in the S-SSB is occupied by the PSBCH signal
  • the first symbol in the S-SSB is occupied by the PSBCH signal
  • the The second symbol in the S-SSB is occupied by the S-SSS
  • the third symbol in the S-SSB is occupied by the PSBCH signal
  • the fourth symbol in the S-SSB is occupied by the S -PSS occupancy.
  • the S-SSB further includes an AGC signal, the AGC signal occupies one symbol, and the symbol occupied by the AGC is located in a symbol used to transmit the S-PSS, the S-SSS, and the PSBCH signal prior to.
  • the method further includes: the second device receives the AGC signal, and the AGC signal occupies one symbol.
  • the second device receiving the S-SSB includes: the second device receiving the S-SSB through a through link, the through link is orthogonal frequency division multiplexing using a cyclic prefix A straight-through link for CP-OPDM waveforms, or a straight-through link using discrete Fourier transform spread spectrum orthogonal frequency division multiplexing DFT-s-OFDM waveforms.
  • the second device is a terminal device.
  • an apparatus including: a generating unit for generating a through link-synchronization signal and a physical broadcast channel block S-SSB; wherein, the S-SSB includes at least a through link-primary synchronization signal S- The PSS, the through link-secondary synchronization signal S-SSS, and the physical through link broadcast channel PSBCH signal do not include the demodulation reference signal DMRS; the sending unit is used to send the S-SSB.
  • a device comprising: a receiving unit for receiving a direct link-synchronization signal and a physical broadcast channel block S-SSB, wherein the S-SSB includes at least a direct link-primary synchronization signal S- The PSS, the through link-secondary synchronization signal S-SSS, and the physical through link broadcast channel PSBCH signal do not include the demodulation reference signal DMRS; the detection unit is used to detect the synchronous broadcast information in the S-SSB.
  • a communication device including: a processor, a memory, and a transceiver; the processor is configured to read a program in the memory and execute the method according to any one of the first aspects.
  • a communication device including: a processor, a memory, and a transceiver; the processor is configured to read a program in the memory and execute the method according to any one of the second aspects above.
  • a computer-readable storage medium storing computer-executable instructions, the computer-executable instructions being used to cause the computer to execute any one of the above-mentioned first aspects The method described.
  • a computer-readable storage medium storing computer-executable instructions, the computer-executable instructions being used to cause the computer to execute any one of the above-mentioned second aspects The method described.
  • the first device generates an S-SSB
  • the S-SSB includes at least S-PSS, S-SSS, and PSBCH signals but does not include DMRS, and transmits the S-SSB
  • the S-SSB designed in this way SSB has nothing to do with the waveform, realizes the same S-SSB in both CP-OFDM and DFT-s-OFDM waveforms, reduces the complexity of S-SSB design, and saves the time-frequency resources occupied by S-SSB
  • second device When detecting the synchronous broadcast information in the received S-SSB, since the S-SSB does not include DMRS, the second device can demodulate the PSBCH signal according to the S-SSS, which can reduce the solution of the second device
  • the complexity of adjustment improves the bit error rate of PSBCH signal and the resource utilization rate of S-SSB, which is simple to implement and saves power resources.
  • FIG. 1 is a schematic diagram of an S-SSB under a CP-OFDM waveform in an embodiment of this application;
  • FIG. 2 is a schematic diagram of an S-SSB under a DFT-s-OFDM waveform in an embodiment of this application;
  • FIG. 3 is a flowchart of a method for sending synchronous broadcast information according to an embodiment of the present application
  • FIG. 4 is a flowchart of a synchronous broadcast information detection method provided by an embodiment of the present application.
  • FIG. 5 is a schematic diagram of a time slot distribution provided in Embodiment 1 of the present application.
  • FIG. 6 is a schematic diagram of a time slot distribution provided in Embodiment 1 of the present application.
  • Example 7 is a schematic diagram of a time slot distribution provided in Example 2 of this application.
  • FIG. 8 is a schematic diagram of a time slot distribution provided in Embodiment 2 of this application.
  • FIG. 9 is a schematic diagram of a time slot distribution provided in Embodiment 3 of this application.
  • FIG. 10 is a schematic diagram of a time slot distribution provided in Example 4 of this application.
  • Example 11 is a schematic diagram of an S-SSB distribution provided in Example 5 of this application.
  • FIG. 12 is a schematic structural diagram of a device provided by an embodiment of this application.
  • FIG. 13 is a schematic structural diagram of a device provided by an embodiment of the present application.
  • FIG. 14 is a schematic structural diagram of a communication device according to an embodiment of the present application.
  • 15 is a schematic structural diagram of a communication device according to an embodiment of the present application.
  • GSM Global Mobile System
  • CDMA Code Division Multiple Access
  • WCDMA wideband code division multiple Address
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • LTE-A Advanced Long Term Evolution
  • UMTS Universal Mobile Telecommunication System
  • NR New Radio
  • the user equipment includes but is not limited to a mobile station (Mobile Station, MS), a mobile terminal (Mobile Terminal), a mobile phone (Mobile Telephone), and a mobile phone (handset) And portable equipment (portable equipment), etc.
  • the user equipment can communicate with one or more core networks via a radio access network (Radio Access Network, RAN), for example, the user equipment can be a mobile phone (or "cellular") Telephone), a computer with wireless communication function, etc.
  • the user equipment may also be a portable, portable, handheld, built-in computer or mobile device on board.
  • a base station may refer to a device that communicates with a wireless terminal through one or more sectors on an air interface in an access network.
  • the base station can be used to convert received air frames and IP packets to each other as a router between the wireless terminal and the rest of the access network, where the rest of the access network can include an Internet Protocol (IP) network.
  • IP Internet Protocol
  • the base station can also coordinate attribute management of the air interface.
  • the base station may be a base station (Base Transceiver Station, BTS) in GSM or CDMA, or a base station (NodeB) in TD-SCDMA or WCDMA, or an evolved base station (eNodeB or eNB or e- NodeB, evolutional Node B), or a base station (gNB) in 5G NR, the invention is not limited.
  • BTS Base Transceiver Station
  • NodeB base station
  • eNodeB or eNB or e- NodeB, evolutional Node B evolved base station
  • gNB base station
  • the terminal device may be a device that provides voice and/or data connectivity to a user, a handheld device with a wireless connection function, or a wireless modem Of other processing equipment. In different systems, the name of the terminal device may be different. For example, in a 5G system, the terminal device may be called a user equipment (UE).
  • the wireless terminal device can communicate with one or more core networks via the RAN.
  • the wireless terminal device can be a mobile terminal device, such as a mobile phone (or referred to as a "cellular" phone) and a computer with the mobile terminal device, for example, it can be portable , Portable, handheld, computer built-in or vehicle-mounted mobile devices, which exchange language and/or data with the wireless access network.
  • PCS personal communication service
  • SIP session initiation protocol
  • WLL wireless local loop
  • PDA personal digital assistants
  • the wireless terminal equipment can also be called a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, and an access point 3.
  • Remote terminal equipment remote terminal
  • access terminal equipment access terminal
  • user terminal user terminal
  • user agent user agent
  • user device user device
  • the PC5 port is used for direct communication between the terminal and the terminal. Before performing business data transmission, it is necessary to establish synchronization between the two terminals for communication at the PC5 port.
  • the method of establishing synchronization is that one terminal A sends synchronization and broadcast signals, and the other terminal B receives the synchronization and broadcast signals sent by terminal A. Once terminal B receives and demodulates successfully, the two terminals can establish synchronization, which is the next step.
  • the communication is ready, where the synchronization and broadcast signals are carried through the S-SSB.
  • FIG. 1 and FIG. 2 are schematic diagrams of S-SSB under CP-OFDM waveform and S-SSB under DFT-s-OFDM waveform, respectively.
  • each column represents an orthogonal frequency division multiplexing (Orthogonal Frequency Division Multiplexing, OFDM) symbol.
  • the ordinate is in the frequency domain, and in this figure are 25 resource blocks (Resource Block, RB).
  • a Slot contains two S-SSBs.
  • the time-frequency resources occupied by the two S-SSBs are the data transmission area.
  • the data transmission area includes data or DMRS.
  • Automatic Gain Control (AGC) The signal occupies the first OFDM symbol, and the guard interval (Guard Period, GP) occupies the last OFDM symbol.
  • An S-SSB includes a direct link-primary synchronization signal (Side Link-Primary Synchronization Signal, S-PSS), a direct link-secondary synchronization signal (Sidelink-Secondary Synchronization Signal, S-SSS), and a physical direct link broadcast channel (Physical Sidelink Broadcast Channel, PSBCH) signal, and DMRS.
  • S-PSS Serial Link-Primary Synchronization Signal
  • S-SSS direct link-secondary synchronization signal
  • PSBCH Physical Sidelink Broadcast Channel
  • the S-SSBs of the two waveforms have obvious differences.
  • the main difference lies in the mapping of the DMRS signal.
  • the CP-OFDM waveform has the DMRS signal embedded in the PSBCH signal, while the DFT-s- In the OFDM waveform, the DMRS signal occupies a single symbol.
  • the communication link may use CP-OFDM waveform or DFT-s-OFDM waveform, and DFT-s-OFDM waveform has the limitation of data multiplexing, it is necessary to target different waveforms Design different S-SSBs. This will bring about the complexity of S-SSB design and the complexity of standard setting, and bring complexity to the realization of subsequent products.
  • an embodiment of the present application proposes a synchronous broadcast information sending method.
  • the terminal generates an S-SSB that includes at least S-PSS, S-SSS, and PSBCH signals but does not include DMRSD, and sends the S -SSB;
  • S-SSB designed in this way has nothing to do with the waveform used, that is, the same S-SSB in both CP-OFDM and DFT-s-OFDM waveforms, thereby reducing the complexity of S-SSB design and the standard the complexity.
  • FIG. 3 it is a flowchart of a method for sending synchronous broadcast information according to an embodiment of the present application.
  • the process includes:
  • S301 The first device generates an S-SSB.
  • the S-SSB includes at least S-PSS, S-SSS, and PSBCH signals, but does not include DMRS.
  • the S-SSS is used to demodulate PSBCH signals.
  • the first device may send two identical S-SSBs in a time slot, and the time-frequency resources occupied by the two S-SSBs are the data transmission area, and the data transmission area includes at least two symbols .
  • the data transmission area and the S-SSB located in front of the data transmission area belong to the same user receiving, no AGC training is required; if the data transmission area and the S-SSB located in front of the data transmission area belong to Different terminals need to do AGC training, that is, the first symbol in the data transmission area is used for AGC.
  • the S-PSS and S-SSS in the S-SSB occupy 1 symbol
  • the PSBCH signal in the S-SSB occupies 2 symbols
  • the symbols occupied by the S-PSS and the symbols occupied by the S-SSS are not the same Adjacent
  • the 2 symbols occupied by the PSBCH signal are not adjacent.
  • the first symbol in S-SSB is occupied by S-PSS
  • the second symbol in S-SSB is occupied by PSBCH signal
  • the third symbol in S-SSB is occupied by S-SSS
  • S-SSB The fourth symbol in is occupied by PSBCH signal; or, the first symbol in S-SSB is occupied by PSBCH signal, the second symbol in S-SSB is occupied by S-SSS, and the third symbol in S-SSB
  • the symbol is occupied by the PSBCH signal
  • the fourth symbol in the S-SSB is occupied by the S-PSS.
  • the S-SSB generated by the first device includes an AGC signal, the AGC signal occupies one symbol, and the symbol used to transmit the AGC signal is located before the symbol used to transmit the S-PSS, S-SSS, and PSBCH signals.
  • the first device before sending the S-SSB, the first device also needs to send an AGC signal.
  • the AGC signal occupies a symbol, and the symbol occupied by the AGC signal is located before the symbol that transmits the S-PSS, S-SSS, and PSBCH signals.
  • S302 The first device sends the S-SSB.
  • the first device sends the S-SSB carrying the synchronous broadcast information to the receiving end, so that the receiving end detects the synchronous broadcast information in the S-SSB, and then establishes synchronization to prepare for the next direct communication.
  • the embodiments of the present application also provide a synchronous broadcast information detection method, which can implement the detection of the synchronous broadcast information in the S-SSB sent in the foregoing embodiments.
  • FIG. 4 it is a flowchart of a method for detecting synchronous broadcast information according to an embodiment of the present application.
  • the second device receives the S-SSB.
  • the S-SSB includes at least S-PSS, S-SSS, and PSBCH signals but not DMRS, and the time-frequency resource occupation positions of S-PSS, S-SSS, and PSBCH in the S-SSB are consistent with the foregoing embodiments.
  • the S-SSB received by the second device includes an AGC signal, and the AGC signal occupies one symbol, and the symbol occupied by the AGC signal is located before the symbols used to transmit the S-PSS, S-SSS, and PSBCH signals.
  • the second device before receiving the S-SSB, the second device also receives the AGC signal.
  • the AGC signal occupies one symbol, and the symbol occupied by the AGC signal is located before the symbols transmitting the S-PSS, S-SSS, and PSBCH signals.
  • the second device detects the synchronous broadcast information in the S-SSB.
  • the second device demodulates the synchronous broadcast information carried in the S-SSB. If the demodulation is successful, it establishes synchronization with the sending end that sent the S-SSB, and then prepares for the next direct communication.
  • the second device since the S-SSB received by the second device does not include DMRS, the second device uses the S-SSS in the S-SSB for channel estimation, and uses the channel estimation value to demodulate the PSBCH signal.
  • the complexity of demodulation of the second device can be reduced, the bit error rate of the PSBCH signal and the resource utilization rate of the S-SSB can be improved, which is simple to implement and saves power resources.
  • the first device generates an S-SSB
  • the S-SSB includes at least S-PSS, S-SSS, and PSBCH signals but does not include DMRS, and transmits the S-SSB
  • the S-SSB designed in this way SSB has nothing to do with the waveform, realizes the same S-SSB in both CP-OFDM and DFT-s-OFDM waveforms, reduces the complexity of S-SSB design, and saves the time-frequency resources occupied by S-SSB
  • second device When detecting the synchronous broadcast information in the received S-SSB, since the S-SSB does not include DMRS, the second device can demodulate the PSBCH signal according to the S-SSS, which can reduce the demodulation of the terminal
  • the complexity increases the bit error rate of the PSBCH signal and the resource utilization rate of the S-SSB, which is simple to implement and saves power resources.
  • the following takes an example in which one time slot includes 2 S-SSBs and the data transmission area occupies 3 OFDM symbols.
  • Embodiment 1 Refer to FIG. 5, which is a schematic diagram of the distribution of the next time slot of the CP-OFDM waveform; as shown in the figure, for the first S-SSB, S-PSS occupies symbol #1, S-SSS occupies symbol #3, The PSBCH signal occupies symbols #2 and #4; for the second S-SSB, the S-PSS occupancy symbol #9, the S-SSS occupancy symbol #11, and the PSBCH signal occupancy symbols #10 and #12.
  • Symbols #5 ⁇ #7 are data transmission areas. If the data transmission area and the S-SSB located in front of the data transmission area belong to the same user, symbol #5 does not need to be used for AGC training, as shown in Figure 5; If the data transmission area and the S-SSB located in front of the data transmission area belong to different terminals for reception, symbol #5 needs AGC training, and symbol #5 may be knocked out to re-rate the rate.
  • the distribution of the time slots The schematic diagram is shown in Figure 6.
  • the above S-SSB may also include an AGC signal.
  • the AGC signal occupies one symbol, and the symbol occupied by the AGC signal is located before the symbols used to transmit the S-PSS, S-SSS, and PSBCH signals; see FIG. 7 for an S-SSB.
  • a schematic diagram of another composition method of SSB as shown in the figure, S-SSB includes AGC signal, S-PSS, S-SSS and PSBCH signal, AGC signal occupies symbol #0, S-PSS occupies symbol #1, S- The SSS occupies symbol #3, and the PSBCH signal occupies symbols #2 and #4.
  • the symbol occupied by the PSBCH signal in the S-SSB under the CP-OFDM waveform does not need to embed DMRS.
  • the receiving end uses the S-SSS for channel estimation and uses the channel’s
  • the channel estimation value demodulates the PSBCH signal; this reduces the complexity of demodulation at the receiving end, is simple to implement, and saves power resources.
  • Embodiment 2 Refer to FIG. 8 for a schematic diagram of the distribution of the next time slot of the DFT-s-OFDM waveform; as shown in the figure, for the first S-SSB, S-PSS occupies symbol #1 and S-SSS occupies symbol # 3.
  • the PSBCH signal occupies symbols #2 and #4; for the second S-SSB, the S-PSS occupancy symbol #9, the S-SSS occupancy symbol #11, and the PSBCH signal occupies the symbols #10 and #12.
  • Symbols #5 ⁇ #7 are data transmission areas. If the data transmission area and the S-SSB located in front of the data transmission area belong to the same user, symbol #5 does not need to be used for AGC training, as shown in Figure 8; If the data transmission area and the S-SSB located in front of the data transmission area belong to different terminals for reception, symbol #5 needs AGC training, and symbol #5 may be knocked out to re-rate the rate.
  • the distribution of the time slots The schematic diagram is shown in Figure 9.
  • the above S-SSB may also include an AGC signal.
  • the AGC signal occupies one symbol, and the symbol occupied by the AGC signal is located before the symbols used to transmit the S-PSS, S-SSS, and PSBCH signals. For the symbol positions, see FIG. 7, I will not repeat them here.
  • the S-SSB under the DFT-s-OFDM waveform does not include a separate DMRS column.
  • the receiving end uses the S-SSS to perform channel estimation and uses the channel estimation value of the channel Demodulate the PSBCH signal; this can reduce the complexity of demodulation at the receiving end, simple to implement, and save power resources.
  • Embodiment 3 Refer to FIG. 10, which is a schematic diagram of the distribution of the next time slot of the CP-OFDM waveform; as shown in the figure, for the first S-SSB, S-PSS occupies symbol #4, S-SSS occupies symbol #2, The PSBCH signal occupies symbols #1 and #3; for the second S-SSB, the S-PSS occupancy symbol #12, the S-SSS occupancy symbol #10, and the PSBCH signal occupancy symbols #9 and #11.
  • Symbols #5 ⁇ #7 are data transmission areas. If the data transmission area and the S-SSB located in front of the data transmission area belong to the same user, symbol #5 does not need to be used for AGC training, as shown in Figure 10; If the data transmission area and the S-SSB located in front of the data transmission area belong to different terminals for reception, symbol #5 needs AGC training and symbol #5 may be knocked out to re-rate the rate. Data transmission in this time slot The schematic diagram of the area distribution is consistent with FIG. 6 and will not be repeated here.
  • the symbol occupied by the PSBCH signal in the S-SSB under the CP-OFDM waveform does not need to embed DMRS.
  • the receiving end uses the S-SSS for channel estimation and uses the channel’s
  • the channel estimation value demodulates the PSBCH signal; this reduces the complexity of demodulation at the receiving end, is simple to implement, and saves power resources.
  • the above S-SSB may also include an AGC signal.
  • the AGC signal occupies one symbol, and the symbol occupied by the AGC signal is located before the symbols used to transmit the S-PSS, S-SSS, and PSBCH signals. For the symbol positions, see FIG. 7, I will not repeat them here.
  • Embodiment 4 Refer to FIG. 11 for a schematic diagram of the distribution of the next time slot of the DFT-s-OFDM waveform; as shown in the figure, for the first S-SSB, S-PSS occupies symbol #4, S-SSS occupies symbol # 2.
  • the PSBCH signal occupies symbols #1 and #3; for the second S-SSB, the S-PSS occupancy symbol #12, the S-SSS occupancy symbol #10, and the PSBCH signal occupies symbols #9 and #11.
  • Symbols #5 ⁇ #7 are data transmission areas. If the data transmission area and the S-SSB located in front of the data transmission area belong to the same user, symbol #5 does not need to be used for AGC training, as shown in Figure 11; If the data transmission area and the S-SSB located in front of the data transmission area belong to different terminals for reception, symbol #5 needs AGC training and symbol #5 may be knocked out to re-rate the rate. Data transmission in this time slot The schematic diagram of the area distribution is consistent with FIG. 9 and will not be repeated here.
  • the above S-SSB may also include an AGC signal.
  • the AGC signal occupies one symbol, and the symbol occupied by the AGC signal is located before the symbols used to transmit the S-PSS, S-SSS, and PSBCH signals. For the symbol positions, see FIG. 7, I will not repeat them here.
  • the S-SSB under the DFT-s-OFDM waveform does not include a separate DMRS column.
  • the receiving end uses the S-SSS for channel estimation and uses the channel estimation value of the channel Demodulate the PSBCH signal; this reduces the complexity of demodulation at the receiving end, is simple to implement, and saves power resources.
  • an embodiment of the present application also provides a device that can implement the process performed by the first device in FIG. 3 in the foregoing embodiment.
  • FIG. 12 it is a schematic structural diagram of a device provided by an embodiment of the present application. As shown in the figure, the device includes a generating unit 1201 and a sending unit 1202.
  • the generating unit 1201 is used for an S-SSB; wherein, the S-SSB includes at least S-PSS, S-SSS, and PSBCH signals, and the DMRS is not included in the S-SSB.
  • the sending unit 1202 is configured to send the S-SSB.
  • the generating unit 1201 and the sending unit 1200 cooperate with each other to implement any method performed by the first device in the foregoing embodiment.
  • an embodiment of the present application further provides a device that can implement the process performed by the second device in FIG. 4 in the foregoing embodiment.
  • FIG. 13 it is a schematic structural diagram of a device provided by an embodiment of the present application. As shown in the figure, the device includes a receiving unit 1301 and a detecting unit 1302.
  • the receiving unit 1301 is configured to receive an S-SSB, where the S-SSB includes at least S-PSS, S-SSS, and PSBCH signals, and the S-SSB does not include DMRS.
  • the detecting unit 1302 is configured to detect the synchronous broadcast information in the S-SSB.
  • the receiving unit 1301 and the detecting unit 1302 cooperate with each other to implement any method performed by the second device in the foregoing embodiment.
  • an embodiment of the present application further provides a communication device, which can implement the process executed in FIG. 12 in the foregoing embodiment.
  • FIG. 14 shows a schematic structural diagram of a communication apparatus 1400 provided by an embodiment of the present application, that is, another schematic structural diagram of the first device.
  • the communication device 1400 includes a processor 1401 and a memory 1402. Optionally, it may further include a transceiver 1403.
  • the processor 1401 may also be a controller.
  • the processor 1401 is configured to support the terminal to perform the functions involved in the foregoing process.
  • the memory 1402 is used for coupling with the processor 1401, which stores necessary program instructions and data of the terminal.
  • the processor 1401 is connected to the memory 1402.
  • the memory 1402 is used to store instructions.
  • the processor 1401 is used to execute the instructions stored in the memory 1402 to complete the steps of the client device performing corresponding functions in the above method.
  • processors in the embodiments of the present application may be a central processing unit (CPU), a general-purpose processor, a digital signal processor (DSP), and an application-specific integrated circuit (application-specific integrated circuit (ASIC), field programmable gate array (field programmable gate array, FPGA) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof. It can implement or execute various exemplary logical blocks, modules, and circuits described in conjunction with the content of this application.
  • the processor may also be a combination of computing functions, for example, including one or more microprocessor combinations, a combination of DSP and microprocessor, and so on.
  • the memory may be integrated in the processor, or may be provided separately from the processor.
  • an embodiment of the present application further provides a communication device, which can implement the process performed in FIG. 13 in the foregoing embodiment.
  • the communication device 1500 includes a processor 1501, a memory 1502, and optionally, a transceiver 1503.
  • the processor 1501 may also be a controller.
  • the processor 1501 is configured to support the terminal to perform the functions involved in the foregoing processes.
  • the memory 1502 is used for coupling with the processor 1501, which stores necessary program instructions and data of the terminal.
  • the processor 1501 is connected to the memory 1502.
  • the memory 1502 is used to store instructions.
  • the processor 1501 is used to execute the instructions stored in the memory 1502 to complete the steps of the client device performing corresponding functions in the above method.
  • the processor involved in the embodiments of the present application may be a central processing unit (CPU), a general-purpose processor, a digital signal processor (DSP), or an application-specific integrated circuit (application-specific integrated circuit (ASIC), field programmable gate array (field programmable gate array, FPGA) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof. It can implement or execute various exemplary logical blocks, modules, and circuits described in conjunction with the content of this application.
  • the processor may also be a combination of computing functions, for example, including one or more microprocessor combinations, a combination of DSP and microprocessor, and so on.
  • the memory may be integrated in the processor, or may be provided separately from the processor.
  • embodiments of the present application also provide a computer-readable storage medium.
  • the computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions are used to cause the computer to execute the process executed in FIG. 3.
  • embodiments of the present application also provide a computer-readable storage medium.
  • the computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions are used to cause the computer to execute the process executed in FIG. 4.
  • the embodiments of the present invention may be provided as methods, systems, or computer program products. Therefore, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware. Moreover, the present invention may take the form of a computer program product implemented on one or more computer usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer usable program code.
  • computer usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
  • each flow and/or block in the flowchart and/or block diagram and a combination of the flow and/or block in the flowchart and/or block diagram may be implemented by computer program instructions.
  • These computer program instructions can be provided to the processor of a general-purpose computer, special-purpose computer, embedded processing machine, or other programmable data processing device to produce a machine that enables the generation of instructions executed by the processor of the computer or other programmable data processing device A device for realizing the functions specified in one block or multiple blocks of one flow or multiple blocks of a flowchart.
  • These computer program instructions may also be stored in a computer readable memory that can guide a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer readable memory produce an article of manufacture including an instruction device, the instructions
  • the device implements the functions specified in one block or multiple blocks of the flowchart one flow or multiple flows and/or block diagrams.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device, so that a series of operating steps are performed on the computer or other programmable device to generate computer-implemented processing, which is executed on the computer or other programmable device
  • the instructions provide steps for implementing the functions specified in one block or multiple blocks of the flowchart one flow or multiple flows and/or block diagrams.

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Abstract

本申请公开了一种同步广播信息发送、检测方法及装置，该方法包括：第一设备生成直通链路-同步信号与物理广播信道块S-SSB；其中，S-SSB至少包括直通链路-主同步信号S-PSS、直通链路-辅同步信号S-SSS以及物理直通链路广播信道PSBCH信号，不包括解调参考信号DMRS；第一设备发送所述S-SSB；通过本申请实现在CP-OFDM与DFT-s-OFDM两种波形下具有相同的S-SSB。

Description

一种同步广播信息发送、检测方法及装置
本申请要求在2019年1月8日提交中国专利局、申请号为201910017245.8、发明名称为“一种同步广播信息发送、检测方法及装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信技术领域，尤其涉及一种同步广播信息发送、检测方法及装置。
背景技术
在5G新无线接入技术(NR Radio Access，NR)智能网联汽车技术(Vehicle-to-Everything，V2X)系统中，终端与终端之间使用近距离通信端口5(Proximity Communication Port 5，PC5口)进行直接通信。在进行业务数据传输之前，首先需要进行通信的两个终端之间在PC5口建立同步。建立同步的方法就是一个终端A发送同步与广播信号，另外一个终端B接收终端A发送的同步与广播信号，一旦终端B接收并解调成功，这两个终端就能够建立同步，为下一步直接通信做好了准备。
在V2X系统的直通链路(Sidelink)通信中可能采用循环前缀的正交频分复用(Cyclic Prefix-Orthogonal Frequency Division Multiplexing，CP-OFDM)波形，也可能采用离散傅里叶变换扩频的正交频分复用(Discrete Fourier Transform-spread-Orthogonal Frequency Division Multiplexing，DFT-s-OFDM)波形，由于DFT-s-OFDM波形下有数据复用的限制，故需要针对不同的波形需要设计不同的直通链路-同步信号与物理广播信道块(Sidelink Synchronization Signal and Physical Broadcast Channel Block，S-SSB)，这就会带来S-SSB设计的复杂度以及标准制定的复杂度，并给后续产品的实现带来复杂度。
发明内容
本申请实施例提供一种同步广播信息发送、检测方法及装置，用以在V2X通信中，第一设备生成的S-SSB中至少包括S-PSS、S-SSS以及PSBCH信号，不包括解调参考(Demodulation Reference Signal，DMRS)，实现在CP-OFDM与DFT-s-OFDM两种波形下具有相同的S-SSB。
第一方面，提供一种同步广播信息发送方法，包括：第一设备生成直通链路-同步信号与物理广播信道块S-SSB；其中，所述S-SSB至少包括直通链路-主同步信号S-PSS、直通 链路-辅同步信号S-SSS以及物理直通链路广播信道PSBCH信号，不包括解调参考信号DMRS；所述第一设备发送所述S-SSB。
可选地，所述S-SSS用于解调所述PSBCH信号。
可选地，所述第一设备发送所述S-SSB，包括：所述第一设备在一个时隙中发送两个所述S-SSB，所述两个所述S-SSB占用的符号之间为数据传输区域，所述数据传输区域至少包括两个符号。
可选地，所述数据传输区域与位于所述数据传输区域前面的S-SSB属于不同接收设备，则所述数据传输区域中的第一个符号用于自动增益控制AGC。
可选地，所述S-SSB中的所述S-PSS以及所述S-SSS分别占用1个符号，所述S-SSB中的所述PSBCH信号占用2个符号。
可选地，所述S-PSS占用的符号与所述S-SSS占用的符号不相邻，所述PSBCH信号占用的2个符号不相邻。
可选地，所述S-SSB中的第一个符号被所述S-PSS占用，所述S-SSB中的第二个符号被所述PSBCH信号占用，所述S-SSB中的第三个符号被所述S-SSS占用，所述S-SSB中的第四个符号被所述PSBCH信号占用；或者，所述S-SSB中的第一个符号被所述PSBCH信号占用，所述S-SSB中的第二个符号被所述S-SSS占用，所述S-SSB中的第三个符号被所述PSBCH信号占用，所述S-SSB中的第四个符号被所述S-PSS占用。
可选地，所述S-SSB还包括AGC信号，所述AGC信号占用一个符号，所述AGC占用的符号位于用于传输所述S-PSS、所述S-SSS以及所述PSBCH信号的符号之前。
可选地，所述第一设备发送所述S-SSB之前，还包括：所述第一设备发送所述AGC信号，所述AGC信号占用一个符号。
可选地，所述第一设备发送所述S-SSB，包括：所述第一设备通过直通链路发送所述S-SSB，所述直通链路为采用循环前缀的正交频分复用CP-OPDM波形的直通链路，或者采用离散傅里叶变换扩频的正交频分复用DFT-s-OFDM波形的直通链路。
可选地，所述第一设备为终端设备。
第二方面，提供一种同步广播信息检测方法，包括：第二设备接收直通链路-同步信号与物理广播信道块S-SSB，其中，所述S-SSB至少包括直通链路-主同步信号S-PSS、直通链路-辅同步信号S-SSS以及物理直通链路广播信道PSBCH信号，不包括解调参考信号DMRS；所述第二设备对所述S-SSB进行检测。
可选地，所述第二设备对所述S-SSB中的同步广播信息进行检测，包括：所述第二设备根据所述S-SSB中的S-SSS对所述S-SSB中的PSBCH信号进行解调。
可选地，所述第二设备接收S-SSB，包括：所述第二设备在一个时隙中接收两个所述S-SSB，所述两个所述S-SSB占用的符号之间为数据传输区域，所述数据传输区域至少包 括两个符号。
可选地，所述数据传输区域与位于所述数据传输区域前面的S-SSB属于不同发送设备，则所述数据传输区域中的第一个符号用于自动增益控制AGC。
可选地，所述S-SSB中的所述S-PSS以及所述S-SSS分别占用1个符号，所述S-SSB中的所述PSBCH信号占用2个符号。
可选地，所述S-PSS占用的符号与所述S-SSS占用的符号不相邻，所述PSBCH信号占用的2个符号不相邻。
可选地，所述S-SSB中的第一个符号被所述S-PSS占用，所述S-SSB中的第二个符号被所述PSBCH信号占用，所述S-SSB中的第三个符号被所述S-SSS占用，所述S-SSB中的第四个符号被所述PSBCH信号占用；或者，所述S-SSB中的第一个符号被所述PSBCH信号占用，所述S-SSB中的第二个符号被所述S-SSS占用，所述S-SSB中的第三个符号被所述PSBCH信号占用，所述S-SSB中的第四个符号被所述S-PSS占用。
可选地，所述S-SSB还包括AGC信号，所述AGC信号占用一个符号，所述AGC占用的符号位于用于传输所述S-PSS、所述S-SSS以及所述PSBCH信号的符号之前。
可选地，所述第二设备接收所述S-SSB之前，还包括：所述第二设备接收所述AGC信号，所述AGC信号占用一个符号。
可选地，所述第二设备接收所述S-SSB，包括：所述第二设备通过直通链路接收所述S-SSB，所述直通链路为采用循环前缀的正交频分复用CP-OPDM波形的直通链路，或者采用离散傅里叶变换扩频的正交频分复用DFT-s-OFDM波形的直通链路。
可选地，所述第二设备为终端设备。
第三方面，提供一种设备，包括：生成单元，用于生成直通链路-同步信号与物理广播信道块S-SSB；其中，所述S-SSB至少包括直通链路-主同步信号S-PSS、直通链路-辅同步信号S-SSS以及物理直通链路广播信道PSBCH信号，不包括解调参考信号DMRS；发送单元，用于发送所述S-SSB。
第四方面，提供一种设备，包括：接收单元，用于接收直通链路-同步信号与物理广播信道块S-SSB，其中，所述S-SSB至少包括直通链路-主同步信号S-PSS、直通链路-辅同步信号S-SSS以及物理直通链路广播信道PSBCH信号，不包括解调参考信号DMRS；检测单元，用于对所述S-SSB中的同步广播信息进行检测。
第五方面，提供一种通信装置，包括：处理器，存储器以及收发机；所述处理器，用于读取存储器中的程序，执行如上述第一方面中任一项所述的方法。
第六方面，提供一种通信装置，包括：处理器，存储器以及收发机；所述处理器，用于读取存储器中的程序，执行如上述第二方面中任一项所述的方法。
第七方面，提供一种计算机可读存储介质，所述计算机可读存储介质存储有计算机可 执行指令，所述计算机可执行指令用于使所述计算机执行如上述第一方面中任一项所述的方法。
第八方面，提供一种计算机可读存储介质，所述计算机可读存储介质存储有计算机可执行指令，所述计算机可执行指令用于使所述计算机执行如上述第二方面中任一项所述的方法。
本申请的上述实施例中，第一设备生成S-SSB，该S-SSB中至少包括S-PSS、S-SSS以及PSBCH信号但不包括DMRS，并发送该S-SSB；这样设计的S-SSB与波形无关，实现在CP-OFDM与DFT-s-OFDM两种波形下具有相同的S-SSB，降低S-SSB设计的复杂度，节省S-SSB所占用的时频资源；第二设备对接收到的S-SSB中的同步广播信息进行检测时，由于该S-SSB中不包括DMRS，故第二设备可根据S-SSS对PSBCH信号进行解调，这样可降低该第二设备解调的复杂度，提高PSBCH信号的误码率和S-SSB的资源利用率，实现简单，节省电力资源。
附图说明
图1为本申请实施例中的CP-OFDM波形下S-SSB的示意图；
图2为本申请实施例中的DFT-s-OFDM波形下S-SSB的示意图；
图3为本申请实施例提供的一种同步广播信息发送方法的流程图；
图4为本申请实施例提供的一种同步广播信息检测方法的流程图；
图5为本申请实施例1中提供的一种时隙分布示意图；
图6为本申请实施例1中提供的一种时隙分布示意图；
图7为本申请实施例2中提供的一种时隙分布示意图；
图8为本申请实施例2中提供的一种时隙分布示意图；
图9为本申请实施例3中提供的一种时隙分布示意图；
图10为本申请实施例4中提供的一种时隙分布示意图；
图11为本申请实施例5中提供的一种S-SSB分布示意图；
图12为本申请实施例提供的一种设备的结构示意图；
图13为本申请实施例提供的一种设备的结构示意图；
图14为本申请实施例提供的一种通信装置的结构示意图；
图15为本申请实施例提供的一种通信装置的结构示意图。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例中的 附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
应理解，本发明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、先进的长期演进(Advanced long term evolution，LTE-A)系统、通用移动通信系统(Universal Mobile Telecommunication System，UMTS)、新空口(New Radio，NR)等。
还应理解，在本发明实施例中，用户设备(User Equipment，UE)包括但不限于移动台(Mobile Station，MS)、移动终端(Mobile Terminal)、移动电话(Mobile Telephone)、手机(handset)及便携设备(portable equipment)等，该用户设备可以经无线接入网(Radio Access Network，RAN)与一个或多个核心网进行通信，例如，用户设备可以是移动电话(或称为“蜂窝”电话)、具有无线通信功能的计算机等，用户设备还可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置。
在本发明实施例中，基站(例如，接入点)可以是指接入网中在空中接口上通过一个或多个扇区与无线终端通信的设备。基站可用于将收到的空中帧与IP分组进行相互转换，作为无线终端与接入网的其余部分之间的路由器，其中接入网的其余部分可包括网际协议(IP)网络。基站还可协调对空中接口的属性管理。例如，基站可以是GSM或CDMA中的基站(Base Transceiver Station，BTS)，也可以是TD-SCDMA或WCDMA中的基站(NodeB)，还可以是LTE中的演进型基站(eNodeB或eNB或e-NodeB，evolutional Node B)，或者是5G NR中的基站(gNB)，本发明并不限定。
以下，对本申请实施例中的部分用语进行解释说明，以便于本领域技术人员理解。
(1)“第一”、“第二”是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。
(2)“第一设备”、“第二设备”为终端设备，该终端设备可以是指向用户提供语音和/或数据连通性的设备，具有无线连接功能的手持式设备、或连接到无线调制解调器的其他处理设备。在不同的系统中，终端设备的名称可能也不相同，例如在5G系统中，终端设备可以称为用户设备(user equipment，UE)。无线终端设备可以经RAN与一个或多个核心网进行通信，无线终端设备可以是移动终端设备，如移动电话(或称为“蜂窝”电话)和具有移动终端设备的计算机，例如，可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置，它们与无线接入网交换语言和/或数据。例如，个人通信业务(personal  communication service，PCS)电话、无绳电话、会话发起协议(session initiated protocol，SIP)话机、无线本地环路(wireless local loop，WLL)站、个人数字助理(personal digital assistant，PDA)等设备。无线终端设备也可以称为系统、订户单元(subscriber unit)、订户站(subscriber station)，移动站(mobile station)、移动台(mobile)、远程站(remote station)、接入点(access point)、远程终端设备(remote terminal)、接入终端设备(access terminal)、用户终端设备(user terminal)、用户代理(user agent)、用户装置(user device)，本申请实施例中并不限定。
以下结合附图对本申请的具体实施方式进行详细的说明。
在5G NR V2X系统中，终端与终端之间使用PC5口进行直接通信。在进行业务数据传输之前，首先需要进行通信的两个终端之间在PC5口建立同步。建立同步的方法就是一个终端A发送同步与广播信号，另外一个终端B接收终端A发送的同步与广播信号，一旦终端B接收并解调成功，这两个终端就能够建立同步，为下一步直接通信做好了准备，其中，同步与广播信号是通过S-SSB携带的。
参见图1、图2，分别为CP-OFDM波形下S-SSB以及DFT-s-OFDM波形下S-SSB的示意图。
如图所示，横坐标是时域，每列代表一个正交频分复用(Orthogonal Frequency Division Multiplexing，OFDM)符号。纵坐标是频域，该图中是25个资源块(Resource Block，RB)。一个时隙(Slot)里容纳了两个S-SSB，两个S-SSB占用的时频资源之间为数据传输区域，数据传输区域包括数据或DMRS，自动增益控制(Automatic Gain Control，AGC)信号占用第一个OFDM符号，保护间隔(Guard Period，GP)占用最后一个OFDM符号。一个S-SSB包括有直通链路-主同步信号(Sidelink-Primary Synchronization Signal，S-PSS)、直通链路-辅同步信号(Sidelink-Secondary Synchronization Signal，S-SSS)、物理直通链路广播信道(Physical Sidelink Broadcast Channel，PSBCH)信号，以及DMRS。
如图1、图2所示，两种波形下的S-SSB有着明显的区别，主要差异在于DMRS信号的映射方式不同，CP-OFDM波形下DMRS信号嵌入在PSBCH信号中，而DFT-s-OFDM波形下DMRS信号单独占用一个符号。
对于V2X Sidelink通信链路而言，由于该通信链路有可能采用CP-OFDM波形或者DFT-s-OFDM波形，而DFT-s-OFDM波形下有数据复用的限制，故需要针对不同的波形设计不同的S-SSB。这样会带来S-SSB设计的复杂度以及标准制定的复杂度，并给后续产品的实现带来复杂度。
为了解决上述问题，本申请实施例提出一种同步广播信息发送方法，在该方法中，终端生成至少包括S-PSS、S-SSS以及PSBCH信号但不包括DMRSD的S-SSB，并发送该S-SSB；这样设计的S-SSB与其采用的波形无关，即在CP-OFDM与DFT-s-OFDM两种波形下具有相 同的S-SSB，进而降低S-SSB设计的复杂度以及标准制定的复杂度。
如图3所示，为本申请实施例提供的一种同步广播信息发送方法的流程图。
如图所示，该流程包括：
S301：第一设备生成S-SSB。
其中，S-SSB中至少包括S-PSS、S-SSS以及PSBCH信号，但不包括DMRS，该S-SSS用于解调PSBCH信号。
在实际应用中，第一设备可在一个时隙中发送两个相同的S-SSB，该两个S-SSB占用的时频资源之间为数据传输区域，该数据传输区域至少包括两个符号。
对于上述数据传输区域，若数据传输区域与位于该数据传输区域前面的S-SSB属于同一个用户接收，则不需要做AGC训练；若数据传输区域与位于该数据传输区域前面的S-SSB属于不同终端接收，则需要做AGC训练，即该数据传输区域中的第一个符号用于AGC。
可选地，S-SSB中的S-PSS和S-SSS分别占用1个符号，S-SSB中的PSBCH信号占用2个符号，且S-PSS占用的符号与S-SSS占用的符号不相邻，PSBCH信号占用的2个符号不相邻。具体地，S-SSB中的第一个符号被S-PSS占用，S-SSB中的第二个符号被PSBCH信号占用，S-SSB中的第三个符号被S-SSS占用，S-SSB中的第四个符号被PSBCH信号占用；或者，S-SSB中的第一个符号被PSBCH信号占用，S-SSB中的第二个符号被S-SSS占用，S-SSB中的第三个符号被PSBCH信号占用，S-SSB中的第四个符号被S-PSS占用。
可选地，第一设备生成的S-SSB包括AGC信号，该AGC信号占用一个符号，且用于传输该AGC信号的符号位于用于传输S-PSS、S-SSS以及PSBCH信号的符号之前。
可选地，第一设备在发送S-SSB之前，还需要发送AGC信号，AGC信号占用一个符号，该AGC信号占用的符号位于传输S-PSS、S-SSS以及PSBCH信号的符号之前。
S302：第一设备发送该S-SSB。
第一设备将携带有同步广播信息的S-SSB发送给接收端，以使接收端对S-SSB中的同步广播信息进行检测，进而建立同步，为下一步直接通信做好准备。
基于相同的技术构思，本申请实施例还提供一种同步广播信息检测方法，该方法可实现对前述实施例中所发送的S-SSB中的同步广播信息进行检测。
如图4所示，为本申请实施例提供的一种同步广播信息检测方法的流程图。
S401：第二设备接收S-SSB。
其中，S-SSB中至少包括S-PSS、S-SSS以及PSBCH信号但不包括DMRS，且S-PSS、S-SSS以及PSBCH在S-SSB中的时频资源占用位置与前述实施例一致。
可选地，第二设备接收的S-SSB包括AGC信号，该AGC信号占用一个符号，且该AGC信号占用的符号位于用于传输S-PSS、S-SSS以及PSBCH信号的符号之前。
可选地，第二设备接收S-SSB之前，还接收了AGC信号，AGC信号占用一个符号，该AGC信号占用的符号位于传输S-PSS、S-SSS以及PSBCH信号的符号之前。
S402：第二设备对S-SSB中的同步广播信息进行检测。
第二设备对S-SSB中携带的同步广播信息进行解调，若解调成功，则与发送该S-SSB的发送端建立同步，进而为下一步直接通信做好准备。
在S402中，由于第二设备接收到的S-SSB中不包括DMRS，故第二设备使用S-SSB中的S-SSS做信道估计，并使用该信道估计值对PSBCH信号进行解调，这样可降低该第二设备解调的复杂度，提高PSBCH信号的误码率和S-SSB的资源利用率，实现简单，节省电力资源。
本申请的上述实施例中，第一设备生成S-SSB，该S-SSB中至少包括S-PSS、S-SSS以及PSBCH信号但不包括DMRS，并发送该S-SSB；这样设计的S-SSB与波形无关，实现在CP-OFDM与DFT-s-OFDM两种波形下具有相同的S-SSB，降低S-SSB设计的复杂度，节省S-SSB所占用的时频资源；第二设备对接收到的S-SSB中的同步广播信息进行检测时，由于该S-SSB中不包括DMRS，故第二设备可根据S-SSS对PSBCH信号进行解调，这样可降低该终端解调的复杂度，提高PSBCH信号的误码率和S-SSB的资源利用率，实现简单，节省电力资源。
下面以一个时隙包括2个S-SSB，数据传输区域占用3个OFDM符号为例进行说明。
实施例1：参见图5，为CP-OFDM波形下一个时隙的分布示意图；如图所示，对于第一个S-SSB，S-PSS占用符号#1，S-SSS占用符号#3，PSBCH信号占用符号#2和#4；对于第二个S-SSB，S-PSS占用符号#9，S-SSS占用符号#11，PSBCH信号占用符号#10和#12。
符号#5～#7为数据传输区域，若该数据传输区域与位于该数据传输区域前面的S-SSB属于同一个用户接收，则符号#5不需要做AGC训练使用，如图5所示；若该数据传输区域与位于该数据传输区域前面的S-SSB属于不同终端接收，则符号#5需要进行AGC训练，有可能将符号#5打掉，从而进行速率重新匹配，该时隙的分布示意图如图6所示。
上述S-SSB中还可以包括AGC信号，AGC信号占用一个符号，且AGC信号占用的符号位于用于传输S-PSS、述S-SSS以及PSBCH信号的符号之前；参见图7，为一个S-SSB的另外一种组成方式的示意图；如图所示，S-SSB包括AGC信号、S-PSS、S-SSS以及PSBCH信号，AGC信号占用符号#0，S-PSS占用符号#1，S-SSS占用符号#3，PSBCH信号占用符号#2和#4。
该实施例中，CP-OFDM波形下的S-SSB中PSBCH信号所占用的符号中不需要嵌入DMRS，接收端在接收到该S-SSB后使用S-SSS做信道估计，并使用该信道的信道估计值对PSBCH信号解调；这样可降低接收端解调的复杂度，实现简单，节省电力资源。
实施例2：参见图8，为DFT-s-OFDM波形下一个时隙的分布示意图；如图所示，对于 第一个S-SSB，S-PSS占用符号#1，S-SSS占用符号#3，PSBCH信号占用符号#2和#4；对于第二个S-SSB，S-PSS占用符号#9，S-SSS占用符号#11，PSBCH信号占用符号#10和#12。
符号#5～#7为数据传输区域，若该数据传输区域与位于该数据传输区域前面的S-SSB属于同一个用户接收，则符号#5不需要做AGC训练使用，如图8所示；若该数据传输区域与位于该数据传输区域前面的S-SSB属于不同终端接收，则符号#5需要进行AGC训练，有可能将符号#5打掉，从而进行速率重新匹配，该时隙的分布示意图如图9所示。
上述S-SSB中还可以包括AGC信号，AGC信号占用一个符号，且AGC信号占用的符号位于用于传输S-PSS、述S-SSS以及PSBCH信号的符号之前，其符号位置可参见图7，在此不再赘述。该实施例中，DFT-s-OFDM波形下的S-SSB中不包括单独的DMRS列，接收端在接收到该S-SSB后使用S-SSS做信道估计，并使用该信道的信道估计值对PSBCH信号解调；这样可降低接收端解调的复杂度，实现简单，节省电力资源。
实施例3：参见图10，为CP-OFDM波形下一个时隙的分布示意图；如图所示，对于第一个S-SSB，S-PSS占用符号#4，S-SSS占用符号#2，PSBCH信号占用符号#1和#3；对于第二个S-SSB，S-PSS占用符号#12，S-SSS占用符号#10，PSBCH信号占用符号#9和#11。
符号#5～#7为数据传输区域，若该数据传输区域与位于该数据传输区域前面的S-SSB属于同一个用户接收，则符号#5不需要做AGC训练使用，如图10所示；若该数据传输区域与位于该数据传输区域前面的S-SSB属于不同终端接收，则符号#5需要进行AGC训练有可能将符号#5打掉，从而进行速率重新匹配，该时隙中数据传输区域的分布示意图与图6一致，在此不再赘述。
该实施例中，CP-OFDM波形下的S-SSB中PSBCH信号所占用的符号中不需要嵌入DMRS，接收端在接收到该S-SSB后使用S-SSS做信道估计，并使用该信道的信道估计值对PSBCH信号解调；这样可降低接收端解调的复杂度，实现简单，节省电力资源。
上述S-SSB中还可以包括AGC信号，AGC信号占用一个符号，且AGC信号占用的符号位于用于传输S-PSS、述S-SSS以及PSBCH信号的符号之前，其符号位置可参见图7，在此不再赘述。实施例4：参见图11，为DFT-s-OFDM波形下一个时隙的分布示意图；如图所示，对于第一个S-SSB，S-PSS占用符号#4，S-SSS占用符号#2，PSBCH信号占用符号#1和#3；对于第二个S-SSB，S-PSS占用符号#12，S-SSS占用符号#10，PSBCH信号占用符号#9和#11。
符号#5～#7为数据传输区域，若该数据传输区域与位于该数据传输区域前面的S-SSB属于同一个用户接收，则符号#5不需要做AGC训练使用，如图11所示；若该数据传输区域与位于该数据传输区域前面的S-SSB属于不同终端接收，则符号#5需要进行AGC训练有可能将符号#5打掉，从而进行速率重新匹配，该时隙中数据传输区域的分布示意图与图9一致，在此不再赘述。
上述S-SSB中还可以包括AGC信号，AGC信号占用一个符号，且AGC信号占用的符号位于用于传输S-PSS、述S-SSS以及PSBCH信号的符号之前，其符号位置可参见图7，在此不再赘述。
该实施例中，DFT-s-OFDM波形下的S-SSB中不包括单独的DMRS列，接收端在接收到该S-SSB后使用S-SSS做信道估计，并使用该信道的信道估计值对PSBCH信号解调；这样可降低接收端解调的复杂度，实现简单，节省电力资源。
基于相同的技术构思，本申请实施例还提供一种设备，该设备可实现前述实施例中图3第一设备所执行的流程。
如图12所示，为本申请实施例提供的一种设备的结构示意图，如图所示，该设备包括：生成单元1201、发送单元1202。
生成单元1201，用于S-SSB；其中，所述S-SSB至少包括S-PSS、S-SSS以及PSBCH信号，S-SSB中不包括DMRS。
发送单元1202，用于发送所述S-SSB。
进一步地，上述生成单元1201和发送单元1200相互配合，用于实现上述实施例中第一设备执行的任一项方法。
基于相同的技术构思，本申请实施例还提供一种设备，该设备可实现前述实施例中图4第二设备所执行的流程。
如图13所示，为本申请实施例提供的一种设备的结构示意图，如图所示，该设备包括：接收单元1301、检测单元1302。
接收单元1301，用于接收S-SSB，其中，所述S-SSB至少包括S-PSS、S-SSS以及PSBCH信号，所述S-SSB中不包括DMRS。
检测单元1302，用于对所述S-SSB中的同步广播信息进行检测。
进一步地，上述接收单元1301和检测单元1302相互配合，用于实现上述实施例中第二设备执行的任一项方法。
基于相同的技术构思，本申请实施例还提供一种通信装置，该通信装置可实现前述实施例中图12所执行的流程。
图14示出了本申请实施例提供的通信装置1400的结构示意图，即示出了第一设备的另一结构示意图。参阅图14所示，该通信装置1400包括处理器1401、存储器1402，可选地，还可包括收发机1403。其中，处理器1401也可以为控制器。所述处理器1401被配置为支持终端执行前述流程涉及的功能。存储器1402用于与处理器1401耦合，其保存终端必要的程 序指令和数据。其中，处理器1401、和存储器1402相连，该存储器1402用于存储指令，该处理器1401用于执行该存储器1402存储的指令，以完成上述方法中客户端设备执行相应功能的步骤。
本申请实施例中，第一设备和通信装置1400所涉及的与本申请实施例提供的技术方案相关的概念，解释和详细说明及其它步骤请参见前述方法或其它实施例中关于这些内容的描述，此处不做赘述。
需要说明的是，本申请实施例上述涉及的处理器可以是中央处理器(central processing unit，CPU)，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)，现场可编程门阵列(field programmable gate array，FPGA)或者其它可编程逻辑器件、晶体管逻辑器件、硬件部件或者其任意组合。其可以实现或执行结合本申请内容所描述的各种示例性的逻辑方框，模块和电路。处理器也可以是实现计算功能的组合，例如包含一个或多个微处理器组合，DSP和微处理器的组合等等。其中，所述存储器可以集成在所述处理器中，也可以与所述处理器分开设置。
基于相同的技术构思，本申请实施例还提供了一种通信装置，该通信装置可实现前述实施例中图13所执行的流程。
图15示出了本申请实施例提供的通信装置1500的结构示意图，即示出了第二设备的另一结构示意图。参阅图15所示，该通信装置1500包括处理器1501、存储器1502，可选地，还可包括收发机1503。其中，处理器1501也可以为控制器。所述处理器1501被配置为支持终端执行前述流程涉及的功能。存储器1502用于与处理器1501耦合，其保存终端必要的程序指令和数据。其中，处理器1501、和存储器1502相连，该存储器1502用于存储指令，该处理器1501用于执行该存储器1502存储的指令，以完成上述方法中客户端设备执行相应功能的步骤。
本申请实施例中，第二设备和通信装置1500所涉及的与本申请实施例提供的技术方案相关的概念，解释和详细说明及其它步骤请参见前述方法或其它实施例中关于这些内容的描述，此处不做赘述。
需要说明的是，本申请实施例上述涉及的处理器可以是中央处理器(central processing unit，CPU)，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)，现场可编程门阵列(field programmable gate array，FPGA)或者其它可编程逻辑器件、晶体管逻辑器件、硬件部件或者其任意组合。其可以实现或执行结合本申请内容所描述的各种示例性的逻辑方框，模块和电路。处理器也可以是实现计算功能的组合，例如包含一个或多个微处理器组合，DSP和微处理器的组合等等。其中，所述存储器可以集成在所述处理器中，也可以与所述处理器分开设置。
基于相同的技术构思，本申请实施例还提供了一种计算机可读存储介质。计算机可读存储介质存储有计算机可执行指令，计算机可执行指令用于使计算机执行图3中所执行的流程。
基于相同的技术构思，本申请实施例还提供了一种计算机可读存储介质。计算机可读存储介质存储有计算机可执行指令，计算机可执行指令用于使计算机执行图4中所执行的流程。
本领域内的技术人员应明白，本发明的实施例可提供为方法、系统、或计算机程序产品。因此，本发明可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本发明可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
本发明是参照根据本发明实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
尽管已描述了本发明的优选实施例，但本领域内的技术人员一旦得知了基本创造性概念，则可对这些实施例作出另外的变更和修改。所以，所附权利要求意欲解释为包括优选实施例以及落入本发明范围的所有变更和修改。
显然，本领域的技术人员可以对本发明实施例进行各种改动和变型而不脱离本发明实施例的精神和范围。这样，倘若本发明实施例的这些修改和变型属于本发明权利要求及其等同技术的范围之内，则本发明也意图包含这些改动和变型在内。

Claims (48)

  1. 一种同步广播信息发送方法，其特征在于，包括：
    第一设备生成直通链路-同步信号与物理广播信道块S-SSB；其中，所述S-SSB至少包括直通链路-主同步信号S-PSS、直通链路-辅同步信号S-SSS以及物理直通链路广播信道PSBCH信号，不包括解调参考信号DMRS；
    所述第一设备发送所述S-SSB。
  2. 如权利要求1所述的方法，其特征在于，所述S-SSS用于解调所述PSBCH信号。
  3. 如权利要求1所述的方法，其特征在于，所述第一设备发送所述S-SSB，包括：
    所述第一设备在一个时隙中发送两个所述S-SSB，所述两个所述S-SSB占用的符号之间为数据传输区域，所述数据传输区域至少包括两个符号。
  4. 如权利要求3所述的方法，其特征在于，所述数据传输区域与位于所述数据传输区域前面的S-SSB属于不同接收设备，则所述数据传输区域中的第一个符号用于自动增益控制AGC。
  5. 如权利要求1所述的方法，其特征在于，所述S-SSB中的所述S-PSS以及所述S-SSS分别占用1个符号，所述S-SSB中的所述PSBCH信号占用2个符号。
  6. 如权利要求5所述的方法，其特征在于，所述S-PSS占用的符号与所述S-SSS占用的符号不相邻，所述PSBCH信号占用的2个符号不相邻。
  7. 如权利要求6所述的方法，其特征在于，所述S-SSB中的第一个符号被所述S-PSS占用，所述S-SSB中的第二个符号被所述PSBCH信号占用，所述S-SSB中的第三个符号被所述S-SSS占用，所述S-SSB中的第四个符号被所述PSBCH信号占用；
    或者，所述S-SSB中的第一个符号被所述PSBCH信号占用，所述S-SSB中的第二个符号被所述S-SSS占用，所述S-SSB中的第三个符号被所述PSBCH信号占用，所述S-SSB中的第四个符号被所述S-PSS占用。
  8. 如权利要求1至7中任一项所述的方法，其特征在于，所述S-SSB还包括AGC信号，所述AGC信号占用一个符号，所述AGC占用的符号位于用于传输所述S-PSS、所述S-SSS以及所述PSBCH信号的符号之前。
  9. 如权利要求1至7中任一项所述的方法，其特征在于，所述第一设备发送所述S-SSB之前，还包括：
    所述第一设备发送AGC信号，所述AGC信号占用一个符号。
  10. 如权利要求1至7中任一项所述的方法，其特征在于，所述第一设备发送所述S-SSB，包括：
    所述第一设备通过直通链路发送所述S-SSB，所述直通链路为采用循环前缀的正交频分复用CP-OPDM波形的直通链路，或者采用离散傅里叶变换扩频的正交频分复用DFT-s-OFDM波形的直通链路。
  11. 如权利要求1至7中任一项所述的方法，其特征在于，所述第一设备为终端设备。
  12. 一种同步广播信息检测方法，其特征在于，包括：
    第二设备接收直通链路-同步信号与物理广播信道块S-SSB，其中，所述S-SSB至少包括直通链路-主同步信号S-PSS、直通链路-辅同步信号S-SSS以及物理直通链路广播信道PSBCH信号，不包括解调参考信号DMRS；
    所述第二设备对所述S-SSB进行检测。
  13. 如权利要求12所述的方法，其特征在于，所述第二设备对所述S-SSB中的同步广播信息进行检测，包括：
    所述第二设备根据所述S-SSB中的S-SSS对所述S-SSB中的PSBCH信号进行解调。
  14. 如权利要求12所述的方法，其特征在于，所述第二设备接收S-SSB，包括：
    所述第二设备在一个时隙中接收两个所述S-SSB，所述两个所述S-SSB占用的符号之间为数据传输区域，所述数据传输区域至少包括两个符号。
  15. 如权利要求14所述的方法，其特征在于，所述数据传输区域与位于所述数据传输区域前面的S-SSB属于不同发送设备，则所述数据传输区域中的第一个符号用于自动增益控制AGC。
  16. 如权利要求12所述的方法，其特征在于，所述S-SSB中的所述S-PSS以及所述S-SSS分别占用1个符号，所述S-SSB中的所述PSBCH信号占用2个符号。
  17. 如权利要求16所述的方法，其特征在于，所述S-PSS占用的符号与所述S-SSS占用的符号不相邻，所述PSBCH信号占用的2个符号不相邻。
  18. 如权利要求17所述的方法，其特征在于，所述S-SSB中的第一个符号被所述S-PSS占用，所述S-SSB中的第二个符号被所述PSBCH信号占用，所述S-SSB中的第三个符号被所述S-SSS占用，所述S-SSB中的第四个符号被所述PSBCH信号占用；
    或者，所述S-SSB中的第一个符号被所述PSBCH信号占用，所述S-SSB中的第二个符号被所述S-SSS占用，所述S-SSB中的第三个符号被所述PSBCH信号占用，所述S-SSB中的第四个符号被所述S-PSS占用。
  19. 如权利要求12至18中任一项所述的方法，其特征在于，所述S-SSB还包括AGC信号，所述AGC信号占用一个符号，所述AGC占用的符号位于用于传输所述S-PSS、所述S-SSS以及所述PSBCH信号的符号之前。
  20. 如权利要求12至18中任一项所述的方法，其特征在于，所述第二设备接收所述S-SSB之前，还包括：
    所述第二设备接收AGC信号，所述AGC信号占用一个符号。
  21. 如权利要求12至18中任一项所述的方法，其特征在于，所述第二设备接收所述S-SSB，包括：
    所述第二设备通过直通链路接收所述S-SSB，所述直通链路为采用循环前缀的正交频分复用CP-OPDM波形的直通链路，或者采用离散傅里叶变换扩频的正交频分复用DFT-s-OFDM波形的直通链路。
  22. 如权利要求12至18中任一项所述的方法，其特征在于，所述第二设备为终端设备。
  23. 一种设备，其特征在于，包括：
    生成单元，用于生成直通链路-同步信号与物理广播信道块S-SSB；其中，所述S-SSB至少包括直通链路-主同步信号S-PSS、直通链路-辅同步信号S-SSS以及物理直通链路广播信道PSBCH信号，不包括解调参考信号DMRS；
    发送单元，用于发送所述S-SSB。
  24. 一种设备，其特征在于，包括：
    接收单元，用于接收直通链路-同步信号与物理广播信道块S-SSB，其中，所述S-SSB至少包括直通链路-主同步信号S-PSS、直通链路-辅同步信号S-SSS以及物理直通链路广播信道PSBCH信号，不包括解调参考信号DMRS；
    检测单元，用于对所述S-SSB中的同步广播信息进行检测。
  25. 一种通信装置，其特征在于，包括：处理器、存储器以及收发机；
    所述存储器，用于存储计算机指令；
    所述处理器，用于运行所述计算机指令以执行以下操作：
    生成直通链路-同步信号与物理广播信道块S-SSB；其中，所述S-SSB至少包括直通链路-主同步信号S-PSS、直通链路-辅同步信号S-SSS以及物理直通链路广播信道PSBCH信号，不包括解调参考信号DMRS；
    发送所述S-SSB。
  26. 如权利要求25所述的通信装置，其特征在于，所述S-SSS用于解调所述PSBCH信号。
  27. 如权利要求25所述的通信装置，其特征在于，所述处理器发送所述S-SSB，包括：
    在一个时隙中发送两个所述S-SSB，所述两个所述S-SSB占用的符号之间为数据传输 区域，所述数据传输区域至少包括两个符号。
  28. 如权利要求27所述的通信装置，其特征在于，所述数据传输区域与位于所述数据传输区域前面的S-SSB属于不同接收设备，则所述数据传输区域中的第一个符号用于自动增益控制AGC。
  29. 如权利要求25所述的通信装置，其特征在于，所述S-SSB中的所述S-PSS以及所述S-SSS分别占用1个符号，所述S-SSB中的所述PSBCH信号占用2个符号。
  30. 如权利要求29所述的通信装置，其特征在于，所述S-PSS占用的符号与所述S-SSS占用的符号不相邻，所述PSBCH信号占用的2个符号不相邻。
  31. 如权利要求29所述的通信装置，其特征在于，所述S-SSB中的第一个符号被所述S-PSS占用，所述S-SSB中的第二个符号被所述PSBCH信号占用，所述S-SSB中的第三个符号被所述S-SSS占用，所述S-SSB中的第四个符号被所述PSBCH信号占用；
    或者，所述S-SSB中的第一个符号被所述PSBCH信号占用，所述S-SSB中的第二个符号被所述S-SSS占用，所述S-SSB中的第三个符号被所述PSBCH信号占用，所述S-SSB中的第四个符号被所述S-PSS占用。
  32. 如权利要求25至31中任一项所述的通信装置，其特征在于，所述S-SSB还包括AGC信号，所述AGC信号占用一个符号，所述AGC占用的符号位于用于传输所述S-PSS、所述S-SSS以及所述PSBCH信号的符号之前。
  33. 如权利要求25至31中任一项所述的通信装置，其特征在于，发送所述S-SSB之前，所述处理器还用于：
    发送AGC信号，所述AGC信号占用一个符号。
  34. 如权利要求25至31中任一项所述的通信装置，其特征在于，所述处理器发送所述S-SSB，包括：
    通过直通链路发送所述S-SSB，所述直通链路为采用循环前缀的正交频分复用CP-OPDM波形的直通链路，或者采用离散傅里叶变换扩频的正交频分复用DFT-s-OFDM波形的直通链路。
  35. 如权利要求25至31中任一项所述的通信装置，其特征在于，所述通信装置为终端设备。
  36. 一种通信装置，其特征在于，包括：处理器、存储器以及收发机；
    所述存储器，用于存储计算机指令；
    所述处理器，用于运行所述计算机指令以执行以下操作：
    接收直通链路-同步信号与物理广播信道块S-SSB，其中，所述S-SSB至少包括直通链 路-主同步信号S-PSS、直通链路-辅同步信号S-SSS以及物理直通链路广播信道PSBCH信号，不包括解调参考信号DMRS；
    对所述S-SSB进行检测。
  37. 如权利要求36所述的通信装置，其特征在于，所述处理器对所述S-SSB中的同步广播信息进行检测，包括：
    根据所述S-SSB中的S-SSS对所述S-SSB中的PSBCH信号进行解调。
  38. 如权利要求36所述的通信装置，其特征在于，所述处理器接收S-SSB，包括：
    在一个时隙中接收两个所述S-SSB，所述两个所述S-SSB占用的符号之间为数据传输区域，所述数据传输区域至少包括两个符号。
  39. 如权利要求38所述的通信装置，其特征在于，所述数据传输区域与位于所述数据传输区域前面的S-SSB属于不同发送设备，则所述数据传输区域中的第一个符号用于自动增益控制AGC。
  40. 如权利要求36所述的通信装置，其特征在于，所述S-SSB中的所述S-PSS以及所述S-SSS分别占用1个符号，所述S-SSB中的所述PSBCH信号占用2个符号。
  41. 如权利要求40所述的通信装置，其特征在于，所述S-PSS占用的符号与所述S-SSS占用的符号不相邻，所述PSBCH信号占用的2个符号不相邻。
  42. 如权利要求41所述的通信装置，其特征在于，所述S-SSB中的第一个符号被所述S-PSS占用，所述S-SSB中的第二个符号被所述PSBCH信号占用，所述S-SSB中的第三个符号被所述S-SSS占用，所述S-SSB中的第四个符号被所述PSBCH信号占用；
    或者，所述S-SSB中的第一个符号被所述PSBCH信号占用，所述S-SSB中的第二个符号被所述S-SSS占用，所述S-SSB中的第三个符号被所述PSBCH信号占用，所述S-SSB中的第四个符号被所述S-PSS占用。
  43. 如权利要求36至42中任一项所述的通信装置，其特征在于，所述S-SSB还包括AGC信号，所述AGC信号占用一个符号，所述AGC占用的符号位于用于传输所述S-PSS、所述S-SSS以及所述PSBCH信号的符号之前。
  44. 如权利要求36至42中任一项所述的通信装置，其特征在于，所述处理器接收所述S-SSB之前，还用于：
    所述第二设备接收AGC信号，所述AGC信号占用一个符号。
  45. 如权利要求36至42中任一项所述的通信装置，其特征在于，所述处理器接收所述S-SSB，包括：
    通过直通链路接收所述S-SSB，所述直通链路为采用循环前缀的正交频分复用 CP-OPDM波形的直通链路，或者采用离散傅里叶变换扩频的正交频分复用DFT-s-OFDM波形的直通链路。
  46. 如权利要求36至42中任一项所述的通信装置，其特征在于，所述通信装置为终端设备。
  47. 一种计算机可读存储介质，其特征在于，所述存储介质存储有计算机指令，所述计算机指令被处理器执行时实现如权利要求1至11中任一项所述的方法。
  48. 一种计算机可读存储介质，其特征在于，所述存储介质存储有计算机指令，所述计算机指令被处理器执行时实现权利要求12至22中任一项所述的方法。
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