WO2020088637A1 - Procédé d'envoi de signaux et terminal - Google Patents

Procédé d'envoi de signaux et terminal Download PDF

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Publication number
WO2020088637A1
WO2020088637A1 PCT/CN2019/114967 CN2019114967W WO2020088637A1 WO 2020088637 A1 WO2020088637 A1 WO 2020088637A1 CN 2019114967 W CN2019114967 W CN 2019114967W WO 2020088637 A1 WO2020088637 A1 WO 2020088637A1
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WIPO (PCT)
Prior art keywords
ofdm symbol
synchronization signal
ssb
sss
pss
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PCT/CN2019/114967
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English (en)
Chinese (zh)
Inventor
任晓涛
郑方政
赵锐
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电信科学技术研究院有限公司
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Publication of WO2020088637A1 publication Critical patent/WO2020088637A1/fr

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    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT

Definitions

  • the present disclosure relates to the field of communication technologies, and in particular, to a signal transmission method and terminal.
  • a PC5 port (Sidelink) is used for direct communication between the terminal and the terminal.
  • V2X vehicle-to-vehicle
  • a PC5 port Sidelink
  • 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 as the next step. The communication is ready.
  • the synchronization signal of the NR UU port is carried through the SSB block (Synchronization Signal Block, synchronization signal block).
  • SSB block Synchronization Signal Block, synchronization signal block.
  • Each Slot (slot) carries 2 SSB blocks, and PSS (Primary Synchronization Signal) and SSS (Secondary Synchronization Signal) have no time-domain repetition mechanism.
  • the UE Before the UE prepares to perform service transmission on the through link, it first needs to achieve synchronization on the through link. In order to expand the coverage of the synchronization signal, it is necessary to repeat the time domain of the PSS / SSS signal to enhance the detection performance of the synchronization signal.
  • a Slot contains a synchronization signal block (SSB).
  • a synchronization signal block includes S-PSS (Sidelink Primary Synchronization Signal), S-SSS (Sidelink Secondary Synchronization Signal), direct link secondary synchronization Signal), PSBCH (Physical Sidelink Broadcast Channel), and the necessary DMRS (Demodulation Reference Signal, demodulation reference signal).
  • the SSB of the NR UU port needs to perform beam scanning (Beam Sweeping).
  • the beam scanning refers to that the base station sends the SSB once in each possible beam direction within a certain time interval (5ms)
  • the terminal measures the SSB signal strength of each beam and reports the measurement result to the base station.
  • the base station selects the most suitable beam to send data to the terminal according to the measurement result reported by the terminal.
  • the number of directions in which beam scanning is required is also different.
  • the maximum values of SSB beam scanning candidate directions in different carrier frequency ranges are: 4/8/64, and the number of actually configured beam scanning directions cannot exceed this maximum value.
  • NR V2X Sidelink When NR V2X Sidelink is used to send synchronization information, it also needs to use the SSB beam scanning method, so as to ensure that the SSB beam coverage is large enough to ensure better V2X synchronization performance.
  • the synchronization period of LTE V2X is 160ms, and at most 3 synchronization subframes can be configured in each synchronization period.
  • the number of synchronized subframes may increase, but in order to ensure that the service transmission has sufficient time, the number of synchronized subframes will also be very limited.
  • each slot Only one SSB block can be carried. There is only one SSB in each slot, which will result in a longer time for SSB beam scanning, so that the time available for service transmission on Sidelink will become shorter, affecting the timeliness and available resources of service transmission on Sidelink , Leading to an increase in the latency of service transmission on Sidelink and a reduction in available resources.
  • Embodiments of the present disclosure provide a signal sending method and terminal, which can avoid the problems of increased service transmission delay and reduced available resources on the through link.
  • the embodiments of the present disclosure provide the following technical solutions:
  • Embodiments of the present disclosure provide a signal transmission method, including:
  • each time slot of a set of time slots a synchronization signal block SSB is sent; each time slot includes at least two SSBs, and the secondary synchronization signal SSS and the demodulation reference signal DMRS in each SSB are in at least one OFDM symbol Frequency division multiplexing; the SSB is a combined block of the main synchronization signal PSS, the auxiliary synchronization signal SSS and the physical broadcast channel PBCH.
  • the group of time slots includes at least one time slot.
  • Each SSB includes a primary synchronization signal PSS located on at least one OFDM symbol, a secondary synchronization signal SSS located on at least one OFDM symbol, a physical broadcast channel PBCH located on at least one OFDM symbol, and located on at least one The demodulation reference signal DMRS on the OFDM symbol.
  • the OFDM symbol where the DMRS is located is adjacent to the OFDM symbol where the PBCH is located.
  • the OFDM symbol where the PSS is located is adjacent to the OFDM symbol where the DMRS is located, or the OFDM symbol where the SSS is located, or the OFDM symbol where the PBCH is located.
  • the PBCH occupies at least 2 OFDM symbols or the PSS occupies at least 2 OFDM symbols or the SSS occupies at least 2 OFDM symbols.
  • the OFDM symbols occupied by the SSS or the OFDM symbols occupied by the DMRS are located between the PBCH occupying at least 2 OFDM symbols, or the PBCH occupying at least 2 Consecutive OFDM symbols;
  • the PSS occupies at least 2 consecutive OFDM symbols.
  • the SSB is a direct link synchronization signal block S-SSB
  • the PSS is a direct link primary synchronization signal S-PSS
  • the SSS is a direct link secondary synchronization signal S-SSS
  • the PBCH is a direct link physical Broadcast channel PSBCH.
  • An embodiment of the present disclosure also provides a terminal, including:
  • the transceiver is used to send a synchronization signal block SSB in each time slot of a set of time slots; each time slot includes at least two SSBs, and the secondary synchronization signal SSS and the demodulation reference signal DMRS in each SSB Frequency division multiplexing on at least one OFDM symbol; the SSB is a combined block of the primary synchronization signal PSS, the secondary synchronization signal SSS and the physical broadcast channel PBCH.
  • Each SSB includes a primary synchronization signal PSS located on at least one OFDM symbol, a secondary synchronization signal SSS located on at least one OFDM symbol, a physical broadcast channel PBCH located on at least one OFDM symbol, and located on at least one The demodulation reference signal DMRS on the OFDM symbol.
  • An embodiment of the present disclosure also provides a signal transmission device, including:
  • the processing module is used to send an upper synchronization signal block SSB in each time slot of a group of time slots; each time slot includes at least two SSBs, and the secondary synchronization signal SSS and demodulation reference signal in each SSB
  • the DMRS is frequency-division multiplexed on at least one OFDM symbol; the SSB is a combined block of the primary synchronization signal PSS, the secondary synchronization signal SSS and the physical broadcast channel PBCH.
  • An embodiment of the present disclosure also provides a terminal, including: a processor configured to perform the following functions: in each time slot of a set of time slots, a synchronization signal block SSB is sent; each time slot includes at least two SSBs , The secondary synchronization signal SSS and the demodulation reference signal DMRS in each SSB are frequency-division multiplexed on at least one OFDM symbol; the SSB is a combined block of the primary synchronization signal PSS, the secondary synchronization signal SSS and the physical broadcast channel PBCH .
  • Embodiments of the present disclosure also provide a computer storage medium, including instructions, which when executed on a computer, cause the computer to execute the method as described above.
  • each time slot includes at least two SSBs, and the secondary synchronization signal SSS in each of the SSBs and the solution
  • the modulation reference signal DMRS is frequency-division multiplexed on at least one OFDM symbol; the SSB is a combined block of the synchronization signal and the physical broadcast channel PBCH.
  • the secondary synchronization signal SSS and the demodulation reference signal DMRS are used for frequency division multiplexing on at least one OFDM symbol for transmission, which helps to accommodate more SSBs in a slot, which can reduce the time taken for beam scanning , Reserve more time for the service transmission on the through link, reduce the delay of the service transmission on the through link, and increase the available resources for the service transmission on the through link.
  • Figure 1 is a schematic diagram of the design of 5G NR synchronization signal block
  • FIG. 2 is a flowchart of a signal sending method provided by an embodiment of the present disclosure
  • 3 to 10 are schematic diagrams of a design scheme of a transmission pattern of a synchronization signal block in an embodiment of the present disclosure
  • FIG. 11 is a schematic structural diagram of a terminal of the present disclosure.
  • FIG. 12 is a schematic diagram of the reference signal in the transmission pattern of the synchronization signal block being PSS / SSS in the embodiment of the present disclosure.
  • An embodiment of the present disclosure proposes a method for sending synchronous broadcast information, which is used to send synchronization and broadcast signals in a wireless channel, which reduces the time taken by beam scanning and reserves more time for service transmission.
  • an embodiment of the present disclosure provides a signal transmission method, including:
  • Step 21 In each time slot of a set of time slots, a synchronization signal block SSB is sent; each time slot includes at least two SSBs, and the secondary synchronization signal SSS and the demodulation reference signal DMRS in each SSB are at least Frequency division multiplexing on one OFDM symbol (that is, there is at least one OFDM symbol with SSS and DMRS signals distributed on it, but the two occupy different subcarriers); the SSB is the main synchronization signal PSS, the secondary synchronization signal SSS and the physical The combined block of the broadcast channel PBCH.
  • the group of time slots includes at least one time slot.
  • a reference signal occupying at least one orthogonal frequency division multiplexing OFDM symbol is in front of each SSB; the reference signal here may be an automatic gain control signal (Automatic Gain Control, AGC) or a channel estimation reference signal .
  • the reference signal may be PSS or SSS.
  • the signal transmission method of this embodiment can be applied to the signal transmission of the through link, but is not limited to the signal transmission of the through link.
  • the SSB is an S-SSB (through link synchronization signal block)
  • the PSS is an S-PSS (through link primary synchronization signal).
  • the SSS is S-SSS (Through Link Secondary Synchronization Signal)
  • the PBCH is PSBCH (Through Link Physical Broadcast Channel).
  • an implementation manner of step 21 includes:
  • each S-SSB includes a direct link primary synchronization signal S-PSS located on at least one OFDM symbol, and a direct link secondary synchronization signal S-SSS located on at least one OFDM symbol , A direct link physical broadcast channel PSBCH located on at least one OFDM symbol and a demodulation reference signal DMRS located on at least one OFDM symbol.
  • S-PSS direct link primary synchronization signal
  • S-SSS direct link secondary synchronization signal
  • a direct link physical broadcast channel PSBCH located on at least one OFDM symbol
  • DMRS demodulation reference signal
  • the distribution pattern of S-SSB in a single slot is:
  • Each Slot contains 3 S-SSBs.
  • the S-PSS signal is located in OFDM symbol # 1
  • the PSBCH is located in OFDM symbol # 2
  • S-SSS and DMRS are located in OFDM symbol # 3 using frequency division multiplexing.
  • the S-PSS signal is located in OFDM symbol # 5
  • the PSBCH is located in OFDM symbol # 6
  • S-SSS and DMRS are located in OFDM symbol # 7 using frequency division multiplexing.
  • the S-PSS signal is located in the OFDM symbol # 10
  • the PSBCH is located in the OFDM symbol # 11
  • the S-SSS and DMRS are located in the OFDM symbol # 12 using frequency division multiplexing.
  • the OFDM symbol #n represents the n + 1th symbol inside a Slot.
  • OFDM symbol # 3 represents the fourth symbol within a slot; the DMRS and the S-SSS are frequency-division multiplexed; the first SS-SSB and the second SS-SSB are separated by 0 for transmission OFDM symbol of data, that is, the first SS-SSB is adjacent to the second SS-SSB, and the second S-SSB and the third S-SSB are separated by one OFDM symbol for data transmission; the S- The OFDM symbol where the PSS is located is adjacent to the OFDM symbol where the PSBCH is located.
  • This embodiment uses a transmission bandwidth of 50RB, and the number of S-SSBs contained in one slot is large; and there is a symbol between the second S-SSB and the third S-SSB that can be used for time. Delay the transmission of sensitive services, reducing the data transmission delay.
  • the second implementation of the transmission pattern is shown in Figure 4.
  • the distribution pattern of S-SSB in a single slot is:
  • Each Slot contains 3 S-SSBs.
  • the S-PSS signal is located in OFDM symbol # 1
  • the PSBCH is located in OFDM symbol # 3
  • S-SSS and DMRS are located in OFDM symbol # 2 using frequency division multiplexing.
  • the S-PSS signal is located in OFDM symbol # 5
  • the PSBCH is located in OFDM symbol # 7
  • S-SSS and DMRS are located in OFDM symbol # 6 using frequency division multiplexing.
  • the S-PSS signal is located at OFDM symbol # 10
  • the PSBCH is located at OFDM symbol # 12
  • S-SSS and DMRS are located at OFDM symbol # 11 using frequency division multiplexing.
  • the OFDM symbol #n represents the n + 1th symbol inside a Slot.
  • OFDM symbol # 3 represents the fourth symbol within a slot; the DMRS and the S-SSS are frequency-division multiplexed; the first SS-SSB and the second SS-SSB are separated by 0 for transmission OFDM symbol of data, that is, the first SS-SSB is adjacent to the second SS-SSB, and the second SS-SSB and the third SS-SSB are separated by one OFDM symbol for data transmission; The OFDM symbol where the S-PSS is located is adjacent to the OFDM symbol where the S-SSS is located.
  • This embodiment uses a transmission bandwidth of 50RB, and the number of S-SSBs contained in one slot is large; and there is a symbol between the second S-SSB and the third S-SSB that can be used for time. Delay the transmission of sensitive services, reducing the data transmission delay.
  • the third implementation of the transmission pattern is shown in Figure 5.
  • the distribution pattern of S-SSB in a single slot is:
  • Each Slot contains 2 S-SSBs.
  • the S-PSS signals are located at OFDM symbol # 1 and # 2
  • the PSBCH is located at OFDM symbol # 3
  • S-SSS and DMRS are located at OFDM symbols # 4 and # 5 using frequency division multiplexing.
  • S-PSS signals are located at OFDM symbol # 8 and # 9
  • PSBCH is located at OFDM symbol # 10
  • S-SSS and DMRS are located at OFDM symbols # 11 and # 12 using frequency division multiplexing.
  • the OFDM symbol #n represents the n + 1th symbol inside a Slot.
  • OFDM symbol # 3 represents the fourth symbol within a slot; the DMRS and the S-SSS are frequency-division multiplexed, and the two S-SSBs are separated by one OFDM symbol for data transmission; the S -PSS occupies two consecutive OFDM symbols, the DMRS occupies two consecutive OFDM symbols, the OFDM symbol where the S-PSS is located is adjacent to the OFDM symbol where the PSBCH is located.
  • the S-PSS and S-SSS symbols are repeated, and the detection performance of the S-PSS and S-SSS is relatively good; and there is one symbol between the two S-SSBs for delay
  • the transmission of sensitive services reduces the data transmission delay.
  • the fourth implementation of the transmission pattern is shown in Figure 6.
  • the distribution pattern of S-SSB in a single slot is:
  • Each Slot contains 2 S-SSBs.
  • the S-PSS signals are located at OFDM symbol # 1 and # 2
  • the PSBCH is located at OFDM symbol # 5
  • S-SSS and DMRS are located at OFDM symbols # 3 and # 4 using frequency division multiplexing.
  • S-PSS signals are located at OFDM symbol # 8 and # 9
  • PSBCH is located at OFDM symbol # 12
  • S-SSS and DMRS are located at OFDM symbols # 10 and # 11 using frequency division multiplexing.
  • the OFDM symbol #n represents the n + 1th symbol inside a Slot.
  • OFDM symbol # 3 represents the fourth symbol within a slot; the DMRS and the S-SSS are frequency-division multiplexed, and the two S-SSBs are separated by one OFDM symbol for data transmission; the S -PSS occupies two consecutive OFDM symbols, the DMRS occupies two consecutive OFDM symbols, the OFDM symbol where the S-PSS is located is adjacent to the OFDM symbol where the DMRS is located.
  • the S-PSS and S-SSS symbols are repeated, and the detection performance of the S-PSS and S-SSS is relatively good; and there is one symbol between the two S-SSBs for delay
  • the transmission of sensitive services reduces the data transmission delay.
  • step 21 includes:
  • each S-SSB includes a direct link primary synchronization signal S-PSS located on at least one OFDM symbol, and a direct link secondary synchronization signal S-SSS located on at least one OFDM symbol , A direct link physical broadcast channel PSBCH located on at least one OFDM symbol and a demodulation reference signal DMRS located on at least two OFDM symbols.
  • S-PSS direct link primary synchronization signal
  • S-SSS direct link secondary synchronization signal
  • a direct link physical broadcast channel PSBCH located on at least one OFDM symbol
  • DMRS demodulation reference signal
  • the distribution pattern of S-SSB in a single slot is:
  • Each Slot contains 2 S-SSBs.
  • the S-PSS signal in the first S-SSB is located in OFDM symbol # 1
  • PSBCH is located in OFDM symbols # 2 and # 4
  • S-SSS and DMRS are located in OFDM symbol # 3 using frequency division multiplexing, and there is another
  • the column DMRS occupies the symbol # 5.
  • the S-PSS signal is located in OFDM symbol # 8
  • PSBCH is located in OFDM symbols # 9 and # 11
  • S-SSS and DMRS are located in OFDM symbol # 10 using frequency division multiplexing, and there is another
  • the column DMRS occupies the symbol # 12.
  • the OFDM symbol #n represents the n + 1th symbol inside a Slot.
  • OFDM symbol # 3 represents the fourth symbol within a slot; the DMRS and the S-SSS are frequency-division multiplexed, and the two S-SSBs are separated by one OFDM symbol for data transmission; the S -The OFDM symbol occupied by the PSS is adjacent to the OFDM symbol occupied by the PSBCH; the PSBCH occupies 2 OFDM symbols, and the OFDM symbol occupied by the S-SSS is located between the two OFDM symbols occupied by the PSBCH.
  • a transmission bandwidth of 25 RB is used, and the spectrum efficiency of the system is high; and there is one symbol in the middle of the two S-SSBs that can be used for transmission of delay-sensitive services, which reduces the data transmission delay.
  • the distribution pattern of S-SSB in a single slot is:
  • Each Slot contains 2 S-SSBs.
  • the S-PSS signal is located in OFDM symbol # 1
  • PSBCH is located in OFDM symbols # 3 and # 4
  • S-SSS and DMRS are located in OFDM symbol # 2 using frequency division multiplexing.
  • the column DMRS occupies the symbol # 5.
  • the S-PSS signal is located in OFDM symbol # 8
  • PSBCH is located in OFDM symbols # 10 and # 11
  • S-SSS and DMRS are located in OFDM symbol # 9 by frequency division multiplexing, and there is another
  • the column DMRS occupies the symbol # 12.
  • the OFDM symbol #n represents the n + 1th symbol inside a Slot.
  • OFDM symbol # 3 represents the fourth symbol within a slot; the DMRS and the S-SSS are frequency-division multiplexed, and the two S-SSBs are separated by one OFDM symbol for data transmission; the S -The OFDM symbol occupied by the PSS is adjacent to the OFDM symbol occupied by the S-SSS; the PSBCH occupies 2 consecutive OFDM symbols.
  • a transmission bandwidth of 25 RB is used, and the spectrum efficiency of the system is high; and there is one symbol in the middle of the two S-SSBs that can be used for transmission of delay-sensitive services, which reduces the data transmission delay.
  • the third implementation of the transmission pattern is shown in Figure 9.
  • the distribution pattern of S-SSB in a single slot is:
  • Each Slot contains 2 S-SSBs.
  • the S-PSS signals are located in OFDM symbols # 1 and # 2
  • the PSBCH are located in OFDM symbols # 3 and # 5
  • S-SSS and DMRS are located in OFDM symbol # 4 using frequency division multiplexing.
  • the S-PSS signals are located at OFDM symbol # 8 and # 9
  • the PSBCH is located at OFDM symbol # 10 and # 12
  • S-SSS and DMRS are located at OFDM symbol # 11 using frequency division multiplexing.
  • the OFDM symbol #n represents the n + 1th symbol inside a Slot.
  • OFDM symbol # 3 represents the 4th symbol in a Slot; the DMRS and the S-SSS are frequency-division multiplexed, and the two S-SSBs are separated by one OFDM symbol for data transmission; the S -PSS occupies 2 consecutive OFDM symbols, the PSBCH occupies 2 OFDM symbols, and the OFDM symbol occupied by the S-SSS is located between the 2 OFDM symbols occupied by the PSBCH.
  • a transmission bandwidth of 25 RB is used, and the spectrum efficiency of the system is high; and the S-PSS symbol repetition method is used for transmission, and the detection performance of the S-PSS is relatively good; and there is one between the two S-SSBs.
  • Symbols can be used to transmit delay-sensitive services, reducing data transmission delay.
  • the fourth implementation of the transmission pattern is shown in Figure 10.
  • the distribution pattern of S-SSB in a single slot is:
  • Each Slot contains 2 S-SSBs.
  • the S-PSS signal is located in OFDM symbol # 1
  • PSBCH is located in OFDM symbols # 2 and # 5
  • S-SSS and DMRS are located in OFDM symbols # 3 and # 4 using frequency division multiplexing.
  • the S-PSS signal is located at OFDM symbol # 8
  • the PSBCH is located at OFDM symbols # 9 and # 12
  • S-SSS and DMRS are located at OFDM symbols # 10 and # 11 using frequency division multiplexing.
  • the OFDM symbol #n represents the n + 1th symbol inside a Slot.
  • OFDM symbol # 3 represents the fourth symbol within a slot; the DMRS and the S-SSS are frequency-division multiplexed, and the two S-SSBs are separated by one OFDM symbol for data transmission; the S -The OFDM symbol occupied by the PSS is adjacent to the OFDM symbol occupied by the PSBCH, the PSBCH occupies 2 OFDM symbols, the S-SSS occupies 2 consecutive OFDM symbols, and the S-SSS occupies 2 consecutive OFDM symbols located at the Between 2 OFDM symbols occupied by PSBCH.
  • a transmission bandwidth of 25 RB is used, and the spectrum efficiency of the system is high; and S-SSS symbol repetition is used for transmission, and the detection performance of S-SSS is relatively good; and there is one in the middle of two S-SSBs. Symbols can be used to transmit delay-sensitive services, reducing data transmission delay.
  • the above embodiments of the present disclosure adopt Sidelink secondary synchronization signal S-SSS and demodulation reference signal DMRS to be transmitted by frequency division multiplexing on at least one OFDM symbol, thereby helping to accommodate more S in one slot -SSB, which can reduce the time taken by beam scanning, reserve more time for service transmission on the through link, reduce the delay of service transmission on the through link, and increase the availability of service transmission on the through link Resources.
  • an embodiment of the present disclosure also provides a terminal 110, including:
  • the transceiver 111 is used to send an upper synchronization signal block SSB in each time slot of a group of time slots; each time slot includes at least two SSBs, and the secondary synchronization signal SSS and demodulation reference in each SSB
  • the signal DMRS is frequency-division multiplexed on at least one OFDM symbol; the SSB is a combined block of the primary synchronization signal PSS, the secondary synchronization signal SSS and the physical broadcast channel PBCH.
  • Each SSB includes a primary synchronization signal PSS located on at least one OFDM symbol, a secondary synchronization signal SSS located on at least one OFDM symbol, a physical broadcast channel PBCH located on at least one OFDM symbol, and located on at least one The demodulation reference signal DMRS on the OFDM symbol.
  • the group of time slots includes at least one time slot.
  • a reference signal occupying at least one orthogonal frequency division multiplexing OFDM symbol is in front of each SSB; the reference signal is a reference signal for automatic gain control or channel estimation.
  • Each SSB includes a primary synchronization signal PSS located on at least one OFDM symbol, a secondary synchronization signal SSS located on at least one OFDM symbol, a physical broadcast channel PBCH located on at least one OFDM symbol, and located on at least one The demodulation reference signal DMRS on the OFDM symbol.
  • the OFDM symbol where the DMRS is located is adjacent to the OFDM symbol where the PBCH is located.
  • the OFDM symbol where the PSS is located is adjacent to the OFDM symbol where the DMRS is located, or the OFDM symbol where the SSS is located, or the OFDM symbol where the PBCH is located.
  • the PBCH occupies at least 2 OFDM symbols or the PSS occupies at least 2 OFDM symbols or the SSS occupies at least 2 OFDM symbols.
  • the OFDM symbols occupied by the SSS or the OFDM symbols occupied by the DMRS are located between the PBCH occupying at least 2 OFDM symbols, or the PBCH occupying at least 2 Consecutive OFDM symbols;
  • the PSS occupies at least 2 consecutive OFDM symbols.
  • the SSB is a direct link synchronization signal block S-SSB
  • the PSS is a direct link primary synchronization signal S-PSS
  • the SSS is a direct link secondary synchronization signal S-SSS
  • the PBCH is a direct link physical Broadcast channel PSBCH.
  • the terminal may further include: a processor 112, a memory 113, etc., the transceiver 111 and the memory 113, and both the transceiver 111 and the processor 112 may be connected through a bus interface, and the function of the processor 112 may also be realized by the transceiver 111.
  • the function of the transceiver 111 may also be realized by the processor 112.
  • An embodiment of the present disclosure also provides a signal transmission device, including:
  • the processing module is used to send a synchronization signal block SSB in each time slot of a group of time slots; each time slot includes at least two SSBs, and the secondary synchronization signal SSS and the demodulation reference signal DMRS in each SSB Frequency division multiplexing on at least one OFDM symbol; the SSB is a combined block of the primary synchronization signal PSS, the secondary synchronization signal SSS and the physical broadcast channel PBCH.
  • FIGS. 3 to 10 are also applicable to the embodiment of the device, and can also achieve the same technical effect.
  • An embodiment of the present disclosure also provides a terminal, including: a processor configured to perform the following functions: in each time slot of a set of time slots, a synchronization signal block SSB is sent; each time slot includes at least two SSBs , The secondary synchronization signal SSS and the demodulation reference signal DMRS in each SSB are frequency-division multiplexed on at least one OFDM symbol; the SSB is a combined block of the primary synchronization signal PSS, the secondary synchronization signal SSS and the physical broadcast channel PBCH .
  • the above embodiments shown in FIGS. 3 to 10 are also applicable to the embodiments of the terminal, and can also achieve the same technical effect.
  • Embodiments of the present disclosure also provide a computer storage medium, including instructions, which when executed on a computer, cause the computer to execute the method as described above.
  • each Slot contains 2 SSBs.
  • the S-PSS signal is located at OFDM symbol # 0 and # 1
  • DMRS is located at OFDM symbol # 3
  • PSBCH is located at OFDM symbol # 2 and # 4
  • S-SSS is located at OFDM symbol # 5.
  • the S-PSS signal is located at OFDM symbol # 7 and # 8
  • the DMRS is located at OFDM symbol # 10
  • the PSBCH is located at OFDM symbol # 9 and # 11
  • the S-SSS is located at OFDM symbol # 12.
  • the S-PSS located at symbols # 0 and # 7 can also be used for AGC.
  • the above-mentioned embodiments of the present disclosure use the secondary synchronization signal S-SSS and the demodulation reference signal DMRS to perform frequency division multiplexing on at least one OFDM symbol for transmission, thereby helping to accommodate more SSBs in one slot. Furthermore, the time taken by the beam scanning can be reduced, more time is reserved for the service transmission on the through link, the delay of the service transmission on the through link is reduced, and the available resources for the service transmission on the through link are increased.
  • the disclosed device and method may be implemented in other ways.
  • the device embodiments described above are only schematic.
  • the division of the units is only a division of logical functions.
  • there may be other divisions for example, multiple units or components may be combined or Can be integrated 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 disclosure 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 disclosure essentially or part of the contribution to the existing technology or part of the technical solution may be embodied in the form of a software product, the computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present disclosure.
  • the foregoing storage media include various media that can store program codes, such as a U disk, a mobile hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.
  • each component or each step can be decomposed and / or recombined.
  • These decompositions and / or recombinations should be regarded as equivalent solutions of the present disclosure.
  • the steps for performing the above-mentioned series of processing can naturally be executed in chronological order in the order described, but it does not necessarily need to be executed in chronological order, and some steps can be executed in parallel or independently of each other.
  • the embodiments described in the embodiments of the present disclosure may be implemented by hardware, software, firmware, middleware, microcode, or a combination thereof.
  • the processing unit can be implemented in one or more application specific integrated circuits (Application Specific Integrated Circuits, ASIC), digital signal processor (Digital Signal Processing, DSP), digital signal processing device (DSP Device, DSPD), programmable Logic device (Programmable Logic Device, PLD), field programmable gate array (Field-Programmable Gate Array, FPGA), general-purpose processor, controller, microcontroller, microprocessor, others for performing the functions described in this disclosure Electronic unit or its combination.
  • ASIC Application Specific Integrated Circuits
  • DSP Digital Signal Processing
  • DSP Device digital signal processing device
  • DPD digital signal processing device
  • PLD programmable Logic Device
  • FPGA field programmable gate array
  • controller microcontroller, microprocessor, others for performing the functions described in this disclosure Electronic unit or its combination.
  • the technology described in the embodiments of the present disclosure may be implemented through modules (eg, procedures, functions, etc.) that perform the functions described in the embodiments of the present disclosure.
  • the software codes can be stored in the memory and executed by the processor.
  • the memory may be implemented in the processor or external to the processor.
  • the purpose of the present disclosure can also be achieved by running a program or a group of programs on any computing device.
  • the computing device may be a well-known general-purpose device. Therefore, the object of the present disclosure can also be achieved only by providing a program product containing program code for implementing the method or device. That is, such a program product also constitutes the present disclosure, and a storage medium storing such a program product also constitutes the present disclosure. Obviously, the storage medium may be any well-known storage medium or any storage medium developed in the future. It should also be noted that, in the device and method of the present disclosure, obviously, each component or each step can be decomposed and / or recombined.

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

Abstract

La présente invention concerne un procédé d'envoi de signaux et un terminal. Le procédé d'envoi de signaux comprend : dans chaque créneau parmi un groupe de créneaux, l'envoi d'un bloc de signaux de synchronisation (SSB), chaque créneau comprenant au moins deux SSB ; un signal de synchronisation secondaire (SSS) dans chacun des SSB est soumis à un multiplexage par répartition de la fréquence avec un signal de référence de démodulation (DMRS) sur au moins un symbole OFDM ; et le SSB est un bloc de combinaison d'un signal de synchronisation primaire (PSS), du signal de synchronisation secondaire (SSS) et d'un canal physique de diffusion (PBCH).
PCT/CN2019/114967 2018-11-02 2019-11-01 Procédé d'envoi de signaux et terminal WO2020088637A1 (fr)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023220844A1 (fr) * 2022-05-14 2023-11-23 Lenovo (Beijing) Limited Procédés et appareils de transmission de s-ssb dans un spectre sans licence

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116406498A (zh) * 2020-09-30 2023-07-07 华为技术有限公司 一种通信方法及装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016174507A1 (fr) * 2015-04-27 2016-11-03 Telefonaktiebolaget Lm Ericsson (Publ) Format de trame de procédure de recherche de cellule
CN108476485A (zh) * 2017-05-05 2018-08-31 北京小米移动软件有限公司 信号传输方法、装置、电子设备和计算机可读存储介质

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BRPI0708790B1 (pt) * 2006-07-25 2019-11-26 Electronics And Telecomunications Res Institute método de comunicação e aparelhos para terminal
US10433269B2 (en) * 2016-11-02 2019-10-01 Samsung Electronics Co., Ltd. Method and system for integrated backhaul and wireless access network
CN108092930B (zh) * 2016-11-17 2024-01-16 华为技术有限公司 一种通信的方法及终端设备
US10425264B2 (en) * 2017-01-09 2019-09-24 Lg Electronics Inc. Method of transmitting synchronization signal and apparatus therefor
EP3609220B1 (fr) * 2017-06-13 2023-05-10 Beijing Xiaomi Mobile Software Co., Ltd. Procédé et dispositif de mesure de la qualité de signal de cellule, équipement utilisateur et station de base

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016174507A1 (fr) * 2015-04-27 2016-11-03 Telefonaktiebolaget Lm Ericsson (Publ) Format de trame de procédure de recherche de cellule
CN108476485A (zh) * 2017-05-05 2018-08-31 北京小米移动软件有限公司 信号传输方法、装置、电子设备和计算机可读存储介质

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
ERICSSON: "SS Burst Set Composition", 3GPP DRAFT; R1-1706008, 7 April 2017 (2017-04-07), Spokane US, pages 1 - 6, XP051252269 *
INTERDIGITAL INC: "On Remaining Details of Synchronization Signal Designs", 3GPP DRAFT; R1-1720621, 1 November 2017 (2017-11-01), Reno, USA, pages 1 - 6, XP051370087 *
SAMSUNG: "Remaining details on sync signals", 3GPP DRAFT; R1-1721434, 1 December 2017 (2017-12-01), Reno, USA, pages 1 - 7, XP051363884 *
ZTE: "NR-PBCH Design", 3GPP DRAFT; R1-1707045, 17 May 2017 (2017-05-17), Hangzhou, China, pages 1 - 11, XP051261658 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023220844A1 (fr) * 2022-05-14 2023-11-23 Lenovo (Beijing) Limited Procédés et appareils de transmission de s-ssb dans un spectre sans licence

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