WO2019157906A1 - 参考信号的发送及接收方法、基站、终端、存储介质、系统 - Google Patents

参考信号的发送及接收方法、基站、终端、存储介质、系统 Download PDF

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Publication number
WO2019157906A1
WO2019157906A1 PCT/CN2019/072476 CN2019072476W WO2019157906A1 WO 2019157906 A1 WO2019157906 A1 WO 2019157906A1 CN 2019072476 W CN2019072476 W CN 2019072476W WO 2019157906 A1 WO2019157906 A1 WO 2019157906A1
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WIPO (PCT)
Prior art keywords
csi
frequency domain
reference signal
pbch
drs
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PCT/CN2019/072476
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English (en)
French (fr)
Inventor
王化磊
沈兴亚
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Spreadtrum Communications Shanghai Co Ltd
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Spreadtrum Communications Shanghai Co Ltd
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Priority to US16/321,645 priority Critical patent/US12101266B2/en
Publication of WO2019157906A1 publication Critical patent/WO2019157906A1/zh
Anticipated expiration legal-status Critical
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/001—Synchronization between nodes
    • H04W56/0015—Synchronization between nodes one node acting as a reference for the others
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621—Feedback content
    • H04B7/0626—Channel coefficients, e.g. channel state information [CSI]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • 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
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • 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) or DMT
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/005—Allocation of pilot signals, i.e. of signals known to the receiver of common pilots, i.e. pilots destined for multiple users or terminals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • 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
    • H04L5/0078—Timing of allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/14—Spectrum sharing arrangements between different networks

Definitions

  • the embodiments of the present disclosure relate to the field of communications technologies, and in particular, to a method for transmitting and receiving a reference signal, a base station, a terminal, a storage medium, and a system.
  • 3GPP introduces new Radio access technology (NR) to cope with the demand for larger data volume and the need to cope with smaller transmission delays.
  • NR Radio access technology
  • This technology is also known as the fifth generation mobile.
  • Communication technology 5G is also known as the fifth generation mobile.
  • synchronization between the user terminal and the base station is required in the time-frequency domain.
  • Some Discovery Reference Signals (DRS) need to be set on the unlicensed spectrum to help the user terminal access the network.
  • DRS Discovery Reference Signals
  • the user terminal accesses the network mainly needs the synchronization signal and the tracking signal.
  • the synchronization signal is used for synchronizing the user terminal and the network in the time-frequency domain, and the tracking signal helps the user terminal to accurately synchronize with the network in the time-frequency domain for a long time.
  • the reference signal In order to facilitate the user to access the network and obtain wireless frame information, the reference signal needs to be set to a periodic signal.
  • LBT Listen-before-Talk
  • the user terminal Based on the LBT technology, the user terminal will preempt spectrum resources when the spectrum is idle. In order to ensure that the reference signal can be continuously transmitted, it is necessary to transmit a tracking signal to occupy the spectrum.
  • the reference signal for synchronization and access is not set for the unlicensed spectrum, so that the accuracy of receiving the reference signal from the transmitting end by the receiving end is low, which is disadvantageous for the UE to perform synchronization and channel based on DRS. Access. There is no need to set a reference signal for synchronization and access based on unlicensed spectrum.
  • the technical problem to be solved by the embodiments of the present disclosure is to provide a method for transmitting and receiving a reference signal, a base station, a terminal, a storage medium, and a system, which can determine a reference signal for synchronization and access based on an unlicensed spectrum, and is beneficial for improving transmission from the receiving end.
  • the accuracy of receiving the reference signal at the terminal helps the UE to perform synchronization and channel access based on the DRS.
  • an embodiment of the present disclosure provides a method for transmitting a reference signal, where the method includes: determining a time-frequency domain location of a DRS, where the DRS includes at least one of the following: PSS, SSS, PBCH, and PBCH.
  • the SSB includes a PSS, an SSS, a PBCH, and a DMRS for the PBCH of the adjacent symbol, and the SSB and the CSI-RS satisfy a relationship that at least one CSI exists in each time slot corresponding to the SSB. -RS resources.
  • the CSI-RS for the TRS is located in at least one of the 0th and 2nd symbols of each slot in the SS burst.
  • the PSS is located at the 4th, 8th, 16th, and 20th symbols of every two slots in the SS burst.
  • the SSS is located at the 6th, 10th, 18th, and 22nd symbols of every two slots in the SS burst.
  • the PBCH and the DMRS for the PBCH are located at the 5th, 7th, 9th, 11th, 17th, 19th, every 2 slots in the SS burst.
  • the 21st and 23rd symbols are located at the 5th, 7th, 9th, 11th, 17th, 19th, every 2 slots in the SS burst. The 21st and 23rd symbols.
  • the PBCH and the DMRS for the PBCH are located in the 4th to 11th, 16th to 23th symbols of every two slots in the SS burst.
  • the CSI-RS for beam management or the CSI-RS for acquiring channel state information is located in at least one symbol of each slot in the SS burst.
  • the CSI-RS frequency domain density is 3, and the frequency domain location starts from subcarrier 0 or subcarrier N, where N is a natural number and 0 ⁇ N ⁇ 11.
  • the CSI-RS frequency domain density is 1, and the frequency domain location starts from subcarrier 0 or subcarrier N, where N is a natural number and 0 ⁇ N ⁇ 11.
  • the CSI-RS frequency domain density is 1/2, and the frequency domain location starts from subcarrier 0 or subcarrier N, where N is a natural number and 0 ⁇ N ⁇ 23.
  • the sending method of the reference signal further includes: indicating the N value by using high layer signaling.
  • the method for sending the reference signal further includes: indicating, by using high layer signaling, a location of the SSB in a time domain; and indicating, by using high layer signaling, a location of the SSB in a frequency domain.
  • the location of the frequency domain includes: a center frequency point corresponding to the SSB.
  • the high layer signaling includes: offset information between a center frequency point corresponding to the SSB and a common PRB index0.
  • an embodiment of the present disclosure provides a method for receiving a reference signal, including: acquiring a time-frequency domain location of a DRS, where the DRS includes at least one of the following: a PSS, an SSS, a PBCH, a DMRS for a PBCH, a CSI-RS for TRS, a CSI-RS for beam management, and a CSI-RS for acquiring channel state information; receiving the DRS at a time-frequency domain location of the DRS.
  • the SSB includes a PSS, an SSS, a PBCH, and a DMRS for the PBCH of the adjacent symbol, and the SSB and the CSI-RS satisfy a relationship that at least one CSI exists in each time slot corresponding to the SSB. -RS resources.
  • the CSI-RS for the TRS is located in at least one of the 0th and 2nd symbols of each slot in the SS burst.
  • the CSI-RS for beam management or the CSI-RS for acquiring channel state information is located in at least one symbol of each slot in the SS burst.
  • an embodiment of the present disclosure provides a base station, including: a determining unit, configured to determine a time-frequency domain location of a DRS, where the DRS includes at least one of the following: a PSS, an SSS, a PBCH, and a DMRS for a PBCH. a CSI-RS for TRS, a CSI-RS for beam management, and a CSI-RS for acquiring channel state information, and a transmitting unit adapted to transmit the DRS at a time-frequency domain location of the DRS.
  • the SSB includes a PSS, an SSS, a PBCH, and a DMRS for the PBCH of the adjacent symbol, and the SSB and the CSI-RS satisfy a relationship that at least one CSI exists in each time slot corresponding to the SSB. -RS resources.
  • the CSI-RS for the TRS is located in at least one of the 0th and 2nd symbols of each slot in the SS burst.
  • the CSI-RS for beam management or the CSI-RS for acquiring channel state information is located in at least one symbol of each slot in the SS burst.
  • the CSI-RS frequency domain density is 3, and the frequency domain location starts from subcarrier 0 or subcarrier N, where N is a natural number and 0 ⁇ N ⁇ 11.
  • the CSI-RS frequency domain density is 1, and the frequency domain location starts from subcarrier 0 or subcarrier N, where N is a natural number and 0 ⁇ N ⁇ 11.
  • the CSI-RS frequency domain density is 1/2, and the frequency domain location starts from subcarrier 0 or subcarrier N, where N is a natural number and 0 ⁇ N ⁇ 23.
  • the base station further includes: a first indication unit, configured to indicate an N value by using high layer signaling.
  • the base station further includes: a second indication unit, configured to indicate, by using a high layer signaling, a location of the SSB in a time domain; and a third indication unit, configured to indicate, by using high layer signaling, that the SSB is in a frequency domain position.
  • a second indication unit configured to indicate, by using a high layer signaling, a location of the SSB in a time domain
  • a third indication unit configured to indicate, by using high layer signaling, that the SSB is in a frequency domain position.
  • the location of the frequency domain includes: a center frequency point corresponding to the SSB.
  • the high layer signaling includes: offset information between a center frequency point corresponding to the SSB and a common PRB index0.
  • an embodiment of the present disclosure provides a terminal, including: an acquiring unit, configured to acquire a time-frequency domain location of a DRS, where the DRS includes at least one of the following: a PSS, an SSS, a PBCH, and a DMRS for a PBCH. a CSI-RS for TRS, a CSI-RS for beam management, and a CSI-RS for acquiring channel state information, and a receiving unit adapted to receive the DRS at a time-frequency domain location of the DRS.
  • the SSB includes a PSS, an SSS, a PBCH, and a DMRS for the PBCH of the adjacent symbol, and the SSB and the CSI-RS satisfy a relationship that at least one CSI exists in each time slot corresponding to the SSB. -RS resources.
  • the CSI-RS for the TRS is located in at least one of the 0th and 2nd symbols of each slot in the SS burst.
  • the CSI-RS for beam management or the CSI-RS for acquiring channel state information is located in at least one symbol of each time slot in the SS burst.
  • an embodiment of the present disclosure provides a storage medium, which is a non-volatile storage medium or a non-transitory storage medium, on which computer instructions are stored, and the computer instructions execute the above reference when running.
  • the method of transmitting the signal or the step of receiving the above reference signal is a non-volatile storage medium or a non-transitory storage medium, on which computer instructions are stored, and the computer instructions execute the above reference when running.
  • an embodiment of the present disclosure provides a system including a memory and a processor, where the computer stores computer instructions executable on the processor, and the processor executes when the computer instruction is executed.
  • determining a time-frequency domain location of a DRS includes at least one of: PSS, SSS, PBCH, DMRS for PBCH, CSI-RS for TRS, CSI for beam management - RS and CSI-RS for acquiring channel state information; transmitting the DRS at a time-frequency domain location of the DRS.
  • the CSI-RS for the TRS is located at least one of the 0th and 2nd symbols of each slot in the SS burst, and may be from the 0th symbol of the slot or The second symbol starts to preempt the spectrum resource of the time slot, and helps to enable the reference signal to be continuously transmitted, which helps to further realize time-frequency synchronization between the transmitting end and the receiving end, so that the UE can successfully access the NR network.
  • the CSI-RS for beam management or the CSI-RS for acquiring channel state information is located at least one symbol of each slot in the SS burst, and the CSI-RS can be effectively implemented. Beam management and channel status information indication functions.
  • FIG. 1 is a flowchart of a method for transmitting a reference signal in an embodiment of the present disclosure
  • FIG. 2 is a schematic diagram of a time domain distribution of an SS burst in an embodiment of the present disclosure
  • FIG. 3 is a flowchart of a method for receiving a reference signal in an embodiment of the present disclosure
  • FIG. 4 is a schematic structural diagram of a base station according to an embodiment of the present disclosure.
  • FIG. 5 is a schematic structural diagram of a terminal in an embodiment of the present disclosure.
  • LBT is one of the best technologies in known technologies that enable fair coexistence between devices using different communication technologies.
  • NR LAA study the new NR-based LBT technology will be further studied, making NR LAA a good neighbor for other technologies in the unlicensed spectrum.
  • the DRS may include a Primary Synchronization Signal (PSS), a Secondary Synchronization Signal (SSS), and the like, and a Channel State Information Reference Signal (CSI-RS). Is optional.
  • PSS Primary Synchronization Signal
  • SSS Secondary Synchronization Signal
  • CSI-RS Channel State Information Reference Signal
  • the inventors of the present disclosure have found through research that in the existing NR system, no reference signal for synchronization and access is set for the unlicensed spectrum, that is, the time-frequency domain position of the CSI-RS is not set, resulting in The receiving end receives the reference signal from the transmitting end with low accuracy.
  • determining a time-frequency domain location of a DRS includes at least one of: PSS, SSS, PBCH, DMRS for PBCH, CSI-RS for TRS, CSI for beam management - RS and CSI-RS for acquiring channel state information; transmitting the DRS at a time-frequency domain location of the DRS.
  • FIG. 1 is a flowchart of a method for transmitting a reference signal according to an embodiment of the present disclosure.
  • the method for transmitting the reference signal may be used in a base station, and may include steps S11 to S12:
  • Step S11 determining a time-frequency domain location of the DRS, where the DRS includes at least one of: PSS, SSS, PBCH, DMRS for PBCH, CSI-RS for TRS, CSI-RS for beam management, and For obtaining CSI-RS of channel state information;
  • Step S12 Send the DRS at a time-frequency domain location of the DRS.
  • the DRS may include multiple signals, for example, including at least one of the following signals: PSS, SSS, Physical Broadcast Channel (PBCH), PBCH-based demodulation reference signal (Demodulation Reference) Signal, DMRS), CSI-RS for Tracking Reference Signal (TRS), CSI-RS for Beam Management, and CSI for acquiring Channel State Information (CSI) -RS.
  • PSS Physical Broadcast Channel
  • PBCH Physical Broadcast Channel
  • PBCH-based demodulation reference signal Demodulation Reference
  • DMRS CSI-RS for Tracking Reference Signal
  • TRS Tracking Reference Signal
  • CSI-RS for Beam Management
  • CSI Channel State Information
  • the DRS may include PSS and SSS, may also include PSS, SSS, and CSI-RS, and may also include PSS, SSS, PBCH, and CSI-RS.
  • the SSB includes a PSS, an SSS, a PBCH, and a DMRS for the PBCH of the adjacent symbol, and the SSB and the CSI-RS satisfy a relationship that at least one CSI exists in each time slot corresponding to the SSB.
  • RS resources for the PSS, an SSS, a PBCH, and a DMRS for the PBCH of the adjacent symbol, and the SSB and the CSI-RS satisfy a relationship that at least one CSI exists in each time slot corresponding to the SSB.
  • FIG. 2 is a schematic diagram of a time domain distribution of an SS burst in an embodiment of the present disclosure.
  • SS burst there may be two slots (Slots), and four SSBs may be included in two slots.
  • At least one CSI-RS resource exists in each time slot corresponding to the SSB, for the UE to perform channel estimation, beam management, acquiring a tracking reference signal, etc., which helps to improve synchronization with the base station in the time-frequency domain. accuracy.
  • the first time slot includes the first 14 symbols, that is, the 0th symbol to the 13th symbol, and the second time slot includes the last 14 symbols.
  • the 0th symbol is used to represent a symbol with an index of 0
  • the 13th symbol is used to represent a symbol with an index of 13.
  • the SS burst shown in FIG. 2 can be used when the subcarrier spacing (SCS) is 30 kHz.
  • SCS subcarrier spacing
  • the CSI-RS for the TRS is located in at least one of the 0th and 2nd symbols of each slot in the SS burst.
  • the 0th symbol or the 2nd symbol of each time slot of the CSI-RS for the TRS in the SS burst may start from the 0th symbol or the 2nd symbol of the time slot.
  • the spectrum resources of the time slot are preempted to facilitate the continuous transmission of the reference signal, and the time-frequency synchronization between the transmitting end and the receiving end is implemented, so that the UE can successfully access the NR network.
  • the 0th symbol and the 2nd symbol of each time slot of the CSI-RS for the TRS in the SS burst may start from the 0th symbol of the time slot, that is, from the first
  • the symbols start to preempt the spectrum resources of the time slot, and can continue to occupy the spectrum through the CSI-RS tracking signal located on the second symbol, which is advantageous for continuously transmitting the reference signal when the channel conditions change, further implementing the transmitting end.
  • the SSB may include a PSS, an SSS, a PBCH, and a DMRS for the PBCH.
  • two SSBs in each time slot are set to be continuous in the time domain.
  • the symbol with the index 0 in the second time slot may be marked as the 14th symbol, and the symbol with the index 1 Marked as the 15th symbol, and so on, the symbol with index 13 is marked as the 27th symbol.
  • the successive positions of the plurality of reference signals in the SSB in the time domain may include: the PSS may be located at the first symbol of each SSB, the SSS may be located after the PSS and separated by one symbol, and the PBCH may be located in the remaining of the SSB On the symbol.
  • the PSS may be located at the 4th, 8th, 16th, and 20th symbols of every two slots in the SS burst.
  • the SSS may be located at the 6th, 10th, 18th, and 22nd symbols of every two slots in the SS burst.
  • the PBCH and the DMRS for the PBCH are located at the 5th, 7th, 9th, and 11th of every two slots in the SS burst. , 17th, 19th, 21st, and 23rd symbols.
  • the PBCH and the DMRS for the PBCH may also be set in a free area on the PSS and the symbol where the SSS is located, and thus the PBCH and the PBCH are used.
  • the DMRS can also be located on all symbols where the SSB is located, that is, the 4th to 11th, 16th to 23rd symbols of every two slots in the SS burst.
  • the CSI-RS for beam management or the CSI-RS for acquiring channel state information may be located at least one symbol of each slot in the SS burst.
  • the CSI-RS for beam management or the CSI-RS for acquiring channel state information may be located on an idle symbol, and may also reuse a CSI-RS that has been set.
  • the CSI-RS can be effectively implemented by setting a CSI-RS for beam management or a CSI-RS for acquiring channel state information located in at least one symbol of each slot in the SS burst. Beam management and channel status information indication functions.
  • the location of the SSB in the time domain may not be limited to the location specified in the above embodiments of the present disclosure, but is indicated by higher layer signaling.
  • the location of the SSB in the time domain may be indicated by high layer signaling, and the location of the SSB in the frequency domain is indicated by high layer signaling.
  • the frequency domain location of the SSB may be indicated by higher layer signaling, which may be the center frequency of the SSB.
  • the center frequency point is a global synchronization channel number (GSCN).
  • GSCN global synchronization channel number
  • the high layer signaling may indicate an offset between an SSB center frequency point and a Common Physical Resource Block (PRB) index 0.
  • PRB Common Physical Resource Block
  • the high layer signaling may be sent to the user terminal by using the base station.
  • the high layer signaling may be carried in Radio Resource Control (RRC) signaling, and may also be carried in Remain Minimum System Information (RMSI), and may also be carried in other system information.
  • RRC Radio Resource Control
  • RMSI Remain Minimum System Information
  • OSI Operating System Information
  • the CSI-RS frequency domain density may be 3, and the frequency domain location may start from subcarrier 0 or subcarrier N, where N is a natural number and 0 ⁇ N ⁇ 11.
  • the frequency domain density of the CSI-RS may be 1, and the frequency domain location may start from the subcarrier N.
  • N is a natural number, and N ranges from 0 to 11.
  • the frequency domain density of the CSI-RS may be 1/2, and the frequency domain location may start from the subcarrier N.
  • N is a natural number, and N ranges from 0 to 23.
  • the CSI-RS can be set to multiple ports, and can also be set to a single port, for example, using a port.
  • N value can also be indicated by high layer signaling.
  • the base station may send the DRS at a time-frequency domain location of the DRS.
  • the time-frequency domain location of the CSI-RS may be set, thereby implementing non-authorization based on
  • the spectrum determines the synchronization and access reference signals, which is beneficial to improve the accuracy of the receiving end receiving the reference signal from the transmitting end, and helps the UE to perform synchronization and channel access based on the DRS.
  • the SS burst may be described as a time window, and the time length unit of the time window is a time slot or a millisecond.
  • the time window is periodic and the period is predefined.
  • the time window is periodic, the period being specified by RRC signaling.
  • the time window is aperiodic and the location of the time window is specified by RRC signaling.
  • FIG. 3 is a flowchart of a method for receiving a reference signal in an embodiment of the present disclosure.
  • the receiving method of the reference signal may be used for the user terminal, and may further include step S31 and step S32:
  • Step S31 Acquire a time-frequency domain location of the DRS, where the DRS includes at least one of the following: PSS, SSS, PBCH, DMRS for PBCH, CSI-RS for TRS, CSI-RS for beam management, and For obtaining CSI-RS of channel state information;
  • Step S32 Receive the DRS at a time-frequency domain location of the DRS.
  • the SSB may include a PSS, an SSS, a PBCH, and a DMRS for the PBCH of the adjacent symbol, and the SSB and the CSI-RS may satisfy a relationship that at least one time exists in each time slot corresponding to the SSB.
  • CSI-RS resources may include a PSS, an SSS, a PBCH, and a DMRS for the PBCH of the adjacent symbol, and the SSB and the CSI-RS resources.
  • the CSI-RS for the TRS may be located in at least one of the 0th and 2nd symbols of each slot in the SS burst.
  • the PSS may be located at the 4th, 8th, 16th, and 20th symbols of every two slots in the SS burst.
  • the SSS may be located at the 6th, 10th, 18th, and 22nd symbols of every two slots in the SS burst.
  • the PBCH and the DMRS for the PBCH may be located at the 5th, 7th, 9th, 11th, 17th, 19th, 21st of every two slots in the SS burst. And the 23rd symbol.
  • the PBCH and the DMRS for the PBCH are located in the 4th to 11th, 16th to 23rd symbols of every two slots in the SS burst.
  • the CSI-RS for beam management or the CSI-RS for acquiring channel state information may be located at least one symbol of each slot in the SS burst.
  • the CSI-RS frequency domain density may be 3, and the frequency domain position may start from subcarrier 0 or subcarrier N, where N is a natural number and 0 ⁇ N ⁇ 11.
  • the CSI-RS frequency domain density may be 1, and the frequency domain position may start from subcarrier 0 or subcarrier N, where N is a natural number and 0 ⁇ N ⁇ 11.
  • the CSI-RS frequency domain density may be 1/2, and the frequency domain position may start from subcarrier 0 or subcarrier N, where N is a natural number and 0 ⁇ N ⁇ 23.
  • the method for transmitting the reference signal may further include: indicating an N value by using high layer signaling.
  • the method for transmitting the reference signal may further include: indicating, by the high layer signaling, the location of the SSB in the time domain; and indicating, by the high layer signaling, the location of the SSB in the frequency domain.
  • the location of the frequency domain may include: a center frequency point corresponding to the SSB.
  • the center frequency point is a global synchronization channel number (GSCN).
  • GSCN global synchronization channel number
  • the high layer signaling may include: offset information between a center frequency point corresponding to the SSB and a common PRB index 0.
  • step S31 to step S32 are performed with reference to the descriptions of steps S11 and S12 in FIG. 1 , and details are not described herein again.
  • FIG. 4 is a schematic structural diagram of a base station according to an embodiment of the present disclosure.
  • the base station may include a determining unit 41 and a transmitting unit 42.
  • the determining unit 41 is adapted to determine a time-frequency domain location of the DRS, the DRS comprising at least one of the following: PSS, SSS, PBCH, DMRS for PBCH, CSI-RS for TRS, CSI for beam management RS and CSI-RS for acquiring channel state information;
  • the sending unit 42 is adapted to send the DRS at a time-frequency domain location of the DRS.
  • the SSB may include a PSS, an SSS, a PBCH, and a DMRS for the PBCH of the adjacent symbol, and the SSB and the CSI-RS may satisfy a relationship that at least one time exists in each time slot corresponding to the SSB.
  • CSI-RS resources may include a PSS, an SSS, a PBCH, and a DMRS for the PBCH of the adjacent symbol, and the SSB and the CSI-RS resources.
  • the CSI-RS for the TRS may be located in at least one of the 0th and 2nd symbols of each slot in the SS burst.
  • the CSI-RS for beam management or the CSI-RS for acquiring channel state information may be located at least one symbol of each slot in the SS burst.
  • the CSI-RS frequency domain density may be 3, and the frequency domain position may start from subcarrier 0 or subcarrier N, where N is a natural number and 0 ⁇ N ⁇ 11.
  • the CSI-RS frequency domain density may be 1, and the frequency domain position may start from subcarrier 0 or subcarrier N, where N is a natural number and 0 ⁇ N ⁇ 11.
  • the CSI-RS frequency domain density may be 1/2, and the frequency domain position may start from subcarrier 0 or subcarrier N, where N is a natural number and 0 ⁇ N ⁇ 23.
  • the base station may further include a first indication unit 43, a second index unit 44, and a third indication unit 45.
  • the first indication unit 43 is adapted to indicate the N value by high layer signaling.
  • the second indication unit 44 is adapted to indicate the location of the SSB in the time domain by high layer signaling.
  • the third indication unit 45 is adapted to indicate the location of the SSB in the frequency domain by high layer signaling.
  • the location of the frequency domain may include: a center frequency point corresponding to the SSB.
  • the center frequency point is a global synchronization channel number (GSCN).
  • GSCN global synchronization channel number
  • the high layer signaling may include: offset information between a center frequency point corresponding to the SSB and a common PRB index 0.
  • FIG. 5 is a schematic structural diagram of a terminal in an embodiment of the present disclosure.
  • the terminal may include:
  • the obtaining unit 51 is adapted to acquire a time-frequency domain location of the DRS, where the DRS includes at least one of the following: PSS, SSS, PBCH, DMRS for PBCH, CSI-RS for TRS, CSI for beam management RS and CSI-RS for acquiring channel state information;
  • the receiving unit 52 is adapted to receive the DRS at a time-frequency domain location of the DRS.
  • the SSB may include a PSS, an SSS, a PBCH, and a DMRS for the PBCH of the adjacent symbol, and the SSB and the CSI-RS may satisfy a relationship that at least one time exists in each time slot corresponding to the SSB.
  • CSI-RS resources may include a PSS, an SSS, a PBCH, and a DMRS for the PBCH of the adjacent symbol, and the SSB and the CSI-RS resources.
  • the CSI-RS for the TRS may be located in at least one of the 0th and 2nd symbols of each slot in the SS burst.
  • the CSI-RS for beam management or the CSI-RS for acquiring channel state information may be located at least one symbol of each slot in the SS burst.
  • the embodiment of the present disclosure further provides a storage medium on which computer instructions are stored, and when the computer instructions are executed, the steps of performing the foregoing method for transmitting the reference signals illustrated in FIG. 1 to FIG. 2 are performed, or FIG. 3 is performed.
  • the steps of the receiving method regarding the reference signal may be a computer readable storage medium, for example, may include non-volatile or non-transitory memory, and may also include an optical disk, a mechanical hard disk, a solid state hard disk, and the like.
  • Embodiments of the present disclosure also provide a system including a memory and a processor having stored thereon computer instructions executable on the processor, the processor executing the computer instructions to perform the above-described FIG. 1 to FIG. 2 shows the steps of the method of transmitting the reference signal, or the steps of the method of receiving the reference signal shown in FIG.

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Abstract

一种参考信号的发送及接收方法、基站、终端、存储介质、系统，所述发送方法包括：确定DRS的时频域位置，所述DRS包括以下至少一种：PSS、SSS、PBCH、用于PBCH的DMRS、用于TRS的CSI-RS、用于波束管理的CSI-RS以及用于获取信道状态信息的CSI-RS；在所述DRS的时频域位置上发送所述DRS。本公开方案可以基于非授权频谱确定同步和接入的参考信号，有利于提高接收端从发送端接收参考信号的准确性，有助于UE基于DRS进行同步和信道接入。

Description

参考信号的发送及接收方法、基站、终端、存储介质、系统 技术领域
本公开实施例涉及通信技术领域，尤其涉及一种参考信号的发送及接收方法、基站、终端、存储介质、系统。
背景技术
随着无线技术的不断发展，3GPP引入新的无线技术(New Radio access technology，NR)，以应对更大数据量的需求以及应对更小传输时延的需求，该技术又称为第五代移动通信技术5G。
为了接入NR系统，用户终端和基站之间需要在时频域上获得同步。在非授权频谱上需要设置一些发现参考信号(Discovery Reference Signal，DRS)帮助用户终端接入网络。用户终端接入网络主要需要同步信号和跟踪信号，同步信号用于用户终端和网络在时频域上同步，跟踪信号帮助用户终端长时间和网络在时频域上精确同步。
为了便于用户接入网络，且获得无线帧信息，参考信号需要设置成周期信号。但是在非授权频谱上所有用户公平竞争频谱资源，其中先听后说(Listen-before-Talk，LBT)是一项主要技术。基于LBT技术，用户终端会在频谱空闲时抢占频谱资源。为了保证参考信号能够连续传输，需要发送跟踪信号占用频谱。
然而，在现有的NR系统中，没有为非授权频谱设置用于同步和接入的参考信号，导致接收端从发送端接收参考信号的准确性较低，不利于UE基于DRS进行同步和信道接入。亟需设置一种基于非授权频谱的同步和接入的参考信号。
发明内容
本公开实施例解决的技术问题是提供一种参考信号的发送及接收方法、基站、终端、存储介质、系统，可以基于非授权频谱确定同步和接入的参考信号，有利于提高接收端从发送端接收参考信号的准确性，有助于UE基于 DRS进行同步和信道接入。
为解决上述技术问题，本公开实施例提供一种参考信号的发送方法，所述方法包括：确定DRS的时频域位置，所述DRS包括以下至少一种：PSS、SSS、PBCH、用于PBCH的DMRS、用于TRS的CSI-RS、用于波束管理的CSI-RS以及用于获取信道状态信息的CSI-RS；在所述DRS的时频域位置上发送所述DRS。
可选的，SSB包括相邻符号的PSS、SSS、PBCH和用于PBCH的DMRS，且所述SSB与CSI-RS满足如下关系：在所述SSB对应的每个时隙内，至少存在一个CSI-RS资源。
可选的，用于TRS的CSI-RS位于SS burst中的每个时隙的第0个和第2个符号中的至少一个。
可选的，所述PSS位于SS burst中的每两个时隙的第4个、第8个、第16个以及第20个符号。
可选的，所述SSS位于SS burst中的每两个时隙的第6个、第10个、第18个以及第22个符号。
可选的，所述PBCH以及所述用于PBCH的DMRS位于SS burst中的每两个时隙的第5个、第7个、第9个、第11个、第17个、第19个、第21个以及第23个符号。
可选的，所述PBCH以及所述用于PBCH的DMRS位于SS burst中的每两个时隙的第4个至第11个、第16个至第23个符号。
可选的，用于波束管理的CSI-RS或者用于获取信道状态信息的CSI-RS位于SS burst中的每个时隙的至少一个符号。
可选的，CSI-RS频域密度为3，且频域位置从子载波0或者子载波N开始，其中N为自然数，且0≤N≤11。
可选的，CSI-RS频域密度为1，且频域位置从子载波0或者子载波N开始，其中N为自然数，且0≤N≤11。
可选的，CSI-RS频域密度为1/2，且频域位置从子载波0或者子载波N 开始，其中N为自然数，且0≤N≤23。
可选的，所述的参考信号的发送方法还包括：通过高层信令指示N值。
可选的，所述的参考信号的发送方法还包括：通过高层信令指示所述SSB在时域的位置；通过高层信令指示所述SSB在频域的位置。
可选的，所述频域的位置包括：所述SSB对应的中心频点。
可选的，所述高层信令包括：所述SSB对应的中心频点和公共PRB index0之间的偏置信息。
为解决上述技术问题，本公开实施例提供一种参考信号的接收方法，包括：获取DRS的时频域位置，所述DRS包括以下至少一种：PSS、SSS、PBCH、用于PBCH的DMRS、用于TRS的CSI-RS、用于波束管理的CSI-RS以及用于获取信道状态信息的CSI-RS；在所述DRS的时频域位置上接收所述DRS。
可选的，SSB包括相邻符号的PSS、SSS、PBCH和用于PBCH的DMRS，且所述SSB与CSI-RS满足如下关系：在所述SSB对应的每个时隙内，至少存在一个CSI-RS资源。
可选的，用于TRS的CSI-RS位于SS burst中的每个时隙的第0个和第2个符号中的至少一个。
可选的，用于波束管理的CSI-RS或者用于获取信道状态信息的CSI-RS位于SS burst中的每个时隙的至少一个符号。
为解决上述技术问题，本公开实施例提供一种基站，包括：确定单元，适于确定DRS的时频域位置，所述DRS包括以下至少一种：PSS、SSS、PBCH、用于PBCH的DMRS、用于TRS的CSI-RS、用于波束管理的CSI-RS以及用于获取信道状态信息的CSI-RS；发送单元，适于在所述DRS的时频域位置上发送所述DRS。
可选的，SSB包括相邻符号的PSS、SSS、PBCH和用于PBCH的DMRS，且所述SSB与CSI-RS满足如下关系：在所述SSB对应的每个时隙内，至少存在一个CSI-RS资源。
可选的，用于TRS的CSI-RS位于SS burst中的每个时隙的第0个和第2 个符号中的至少一个。
可选的，用于波束管理的CSI-RS或者用于获取信道状态信息的CSI-RS位于SS burst中的每个时隙的至少一个符号。
可选的，CSI-RS频域密度为3，且频域位置从子载波0或者子载波N开始，其中N为自然数，且0≤N≤11。
可选的，CSI-RS频域密度为1，且频域位置从子载波0或者子载波N开始，其中N为自然数，且0≤N≤11。
可选的，CSI-RS频域密度为1/2，且频域位置从子载波0或者子载波N开始，其中N为自然数，且0≤N≤23。
可选的，所述基站还包括：第一指示单元，适于通过高层信令指示N值。
可选的，所述基站还包括：第二指示单元，适于通过高层信令指示所述SSB在时域的位置；第三指示单元，适于通过高层信令指示所述SSB在频域的位置。
可选的，所述频域的位置包括：所述SSB对应的中心频点。
可选的，所述高层信令包括：所述SSB对应的中心频点和公共PRB index0之间的偏置信息。
为解决上述技术问题，本公开实施例提供一种终端，包括：获取单元，适于获取DRS的时频域位置，所述DRS包括以下至少一种：PSS、SSS、PBCH、用于PBCH的DMRS、用于TRS的CSI-RS、用于波束管理的CSI-RS以及用于获取信道状态信息的CSI-RS；接收单元，适于在所述DRS的时频域位置上接收所述DRS。
可选的，SSB包括相邻符号的PSS、SSS、PBCH和用于PBCH的DMRS，且所述SSB与CSI-RS满足如下关系：在所述SSB对应的每个时隙内，至少存在一个CSI-RS资源。
可选的，用于TRS的CSI-RS位于SS burst中的每个时隙的第0个和第2个符号中的至少一个。
可选的，用于波束管理的CSI-RS或者用于获取信道状态信息的CSI-RS 位于SS burst中的每个时隙的至少一个符号。
为解决上述技术问题，本公开实施例提供一种存储介质，所述存储介质为非易失性存储介质或非瞬态存储介质，其上存储有计算机指令，所述计算机指令运行时执行上述参考信号的发送方法或者上述参考信号的接收方法的步骤。
为解决上述技术问题，本公开实施例提供一种系统，包括存储器和处理器，所述存储器上存储有可在所述处理器上运行的计算机指令，所述处理器运行所述计算机指令时执行上述参考信号的发送方法或者上述参考信号的接收方法的步骤。
与现有技术相比，本公开实施例的技术方案具有以下有益效果：
在本公开实施例中，确定DRS的时频域位置，所述DRS包括以下至少一种：PSS、SSS、PBCH、用于PBCH的DMRS、用于TRS的CSI-RS、用于波束管理的CSI-RS以及用于获取信道状态信息的CSI-RS；在所述DRS的时频域位置上发送所述DRS。采用上述方案，通过确定DRS的时频域位置，并且在所述DRS的时频域位置上发送所述DRS，可以对CSI-RS的时频域位置进行设置，从而实现基于非授权频谱确定同步和接入的参考信号，有利于提高接收端从发送端接收参考信号的准确性，有助于UE基于DRS进行同步和信道接入。
进一步，在本公开实施例中，用于TRS的CSI-RS位于SS burst中的每个时隙的第0个和第2个符号中的至少一个，可以从该时隙的第0个符号或第2个符号开始抢占该时隙的频谱资源，并且有助于使参考信号能够连续传输，有助于进一步实现发送端与接收端之间的时频同步，使得UE能够成功接入NR网络。
进一步，在本公开实施例中，用于波束管理的CSI-RS或者用于获取信道状态信息的CSI-RS位于SS burst中的每个时隙的至少一个符号，可以有效地实现CSI-RS的波束管理和信道状态信息指示功能。
附图说明
图1是本公开实施例中一种参考信号的发送方法的流程图；
图2是本公开实施例中一种SS burst的时域分布示意图；
图3是本公开实施例中一种参考信号的接收方法的流程图；
图4是本公开实施例中一种基站的结构示意图；
图5是本公开实施例中一种终端的结构示意图。
具体实施方式
在现有的NR系统中，3GPP在RP-141646文档中已经开展了关于在蜂窝接入下的未授权频谱通信的研究，主要目的是为了提高通信服务。至今为止，基于LTE协议的增强型授权辅助接入(Enhanced Licensed Assisted Access，eLAA)和授权辅助接入(Licensed Assisted Access，LAA)已经有了很多新的特性。随着通信技术的演进，基于NR技术的未授权频谱通信技术又会成为一个研究热点。
在5G NR的进程中，2017年9月在日本的3GPP全会上正式确定未授权频谱上的具体研究内容。具体而言，主要对5GHz，37GHz以及60GHz的上的大带宽通信进行研究。此外，还会研究NR LAA与传统(legacy)LTE承载(Carrier)做双连接(Dual Connectivity，DC)的场景。同时也会考虑以5G NR授权承载(Licensed Carrier)的载波聚合(Carrier Aggregation，CA)的场景。更进一步的，5G NR还将会研究完全基于NR LAA的独立(Standalone)的场景。
在LTE LAA/eLAA中，提供了下行(Down link，DL)/上行(Up link，UL)信道访问(Channel access)的具体流程，核心的部分包括LBT。目前为止，LBT是已知的技术中能够使得使用不同通信技术的设备之间公平共存的最优技术之一。在NR LAA的研究中，也会进一步的去研究新的基于NR的LBT技术，使得NR LAA在未授权频谱上可以成为其他技术的好邻居(good neighbours)。
此外，在LTE-LAA中存在着DRS，用于UE同步以及进行信道测量等。在LTE-LAA中，DRS可以包括主同步信号(Primary Synchronization Signal，PSS)、辅同步信号(Secondary Synchronization Signal，SSS)等，而信道状态信息参考信号(Channel State Information Reference Signal，CSI-RS)则是可选 的。
本公开的发明人经过研究发现，在现有的NR系统中，没有为非授权频谱设置用于同步和接入的参考信号，也即并未对CSI-RS的时频域位置进行设置，导致接收端从发送端接收参考信号的准确性较低。
在本公开实施例中，确定DRS的时频域位置，所述DRS包括以下至少一种：PSS、SSS、PBCH、用于PBCH的DMRS、用于TRS的CSI-RS、用于波束管理的CSI-RS以及用于获取信道状态信息的CSI-RS；在所述DRS的时频域位置上发送所述DRS。采用上述方案，通过确定DRS的时频域位置，并且在所述DRS的时频域位置上发送所述DRS，可以对CSI-RS的时频域位置进行设置，从而实现基于非授权频谱确定同步和接入的参考信号，有利于提高接收端从发送端接收参考信号的准确性并实现同步。
为使本公开的上述目的、特征和有益效果能够更为明显易懂，下面结合附图对本公开的具体实施例做详细的说明。
参照图1，图1是本公开实施例中一种参考信号的发送方法的流程图，所述参考信号的发送方法可以用于基站，可以包括步骤S11至步骤S12：
步骤S11：确定DRS的时频域位置，所述DRS包括以下至少一种：PSS、SSS、PBCH、用于PBCH的DMRS、用于TRS的CSI-RS、用于波束管理的CSI-RS以及用于获取信道状态信息的CSI-RS；
步骤S12：在所述DRS的时频域位置上发送所述DRS。
在步骤S11的具体实施中，DRS可以包括多种信号，例如包括以下信号中的至少一种：PSS、SSS、物理广播信道(Physical Broadcast Channel，PBCH)、基于PBCH的解调参考信号(Demodulation Reference Signal，DMRS)、用于跟踪参考信号(Tracking Reference Signal，TRS)的CSI-RS、用于波束管理(Beam Management)的CSI-RS以及用于获取信道状态信息(Channel State Information，CSI)的CSI-RS。
作为一个非限制性的例子，在NR LAA中，DRS可以包括PSS以及SSS，还可以包括PSS、SSS以及CSI-RS，还可以包括PSS、SSS、PBCH以及CSI-RS。
进一步地，SSB包括相邻符号的PSS、SSS、PBCH和用于PBCH的DMRS，且所述SSB与CSI-RS满足如下关系：在所述SSB对应的每个时隙内，至少存在一个CSI-RS资源。
参照图2，图2是本公开实施例中一种SS burst的时域分布示意图。
在图2示出的同步信号突发集(SS burst)中，可以包含有2个时隙(Slot)，在2个时隙中可以包含有4个SSB。
在所述SSB对应的每个时隙内，至少存在一个CSI-RS资源，以供UE进行信道估计、波束管理、获取跟踪参考信号等，有助于在时频域上提高与基站保持同步的准确性。
具体地，第1个时隙内包括前14个符号，也即第0个符号至第13个符号，第2个时隙包括后14个符号。
需要指出的是，所述第0个符号用于表示索引为0的符号，第13个符号用于表示索引为13的符号。
本领域技术人员可以理解的是，图2示出的SS burst可以用于子载波间隔(Subcarrier spacing，简称SCS)为30kHz的时候。
进一步地，用于TRS的CSI-RS位于SS burst中的每个时隙的第0个和第2个符号中的至少一个。
在本公开实施例中，用于TRS的CSI-RS位于SS burst中的每个时隙的第0个符号或者第2个符号，可以从该时隙的第0个符号或者第2个符号开始抢占该时隙的频谱资源，以有助于使参考信号能够连续传输，实现发送端与接收端之间的时频同步，使得UE能够成功接入NR网络。
在本公开实施例中，用于TRS的CSI-RS位于SS burst中的每个时隙的第0个符号以及第2个符号，可以从该时隙的第0个符号开始，也即从首个符号开始抢占该时隙的频谱资源，并且还可以通过位于第2个符号上的CSI-RS跟踪信号继续占用频谱，有利于在信道条件变化时仍能够使参考信号连续传输，进一步实现发送端与接收端之间的时频同步。
进一步地，SSB可以包括PSS、SSS、PBCH以及用于PBCH的DMRS， 在本公开实施例中，设置每个时隙内的两个SSB在时域上连续。
需要指出的是，为了清楚描述每两个时隙内的信号，如图2中所示，可以对第2个时隙内索引为0的符号标记为第14个符号，对索引为1的符号标记为第15个符号，依次类推，对索引为13的符号标记为第27个符号。
所述SSB中的多个参考信号在时域上的先后位置可以包括：所述PSS可以位于每个SSB的首个符号，所述SSS可以位于PSS之后且相隔一个符号，PBCH可以位于SSB的剩余符号上。
所述PSS可以位于SS burst中的每两个时隙的第4个、第8个、第16个以及第20个符号。
所述SSS可以位于SS burst中的每两个时隙的第6个、第10个、第18个以及第22个符号。
在本公开实施例的一种具体实施方式中，所述PBCH以及所述用于PBCH的DMRS位于SS burst中的每两个时隙的第5个、第7个、第9个、第11个、第17个、第19个、第21个以及第23个符号。
在本公开实施例的另一种具体实施方式中，所述PBCH以及所述用于PBCH的DMRS还可以设置于PSS以及SSS所在的符号上的空闲区域，因此所述PBCH以及所述用于PBCH的DMRS还可以位于SSB所在的全部符号上，也即SS burst中的每两个时隙的第4个至第11个、第16个至第23个符号。
进一步地，用于波束管理的CSI-RS或者用于获取信道状态信息的CSI-RS可以位于SS burst中的每个时隙的至少一个符号。其中，所述用于波束管理的CSI-RS或者用于获取信道状态信息的CSI-RS可以位于空闲符号上，还可以复用已经设置的CSI-RS。
在本公开实施例中，通过设置用于波束管理的CSI-RS或者用于获取信道状态信息的CSI-RS位于SS burst中的每个时隙的至少一个符号，可以有效地实现CSI-RS的波束管理和信道状态信息指示功能。
需要指出的是，SSB在时域上的位置可以不限于上述本公开实施例中规定的位置，而是由高层信令指示。
具体地，可以通过高层信令指示所述SSB在时域的位置，通过高层信令指示所述SSB在频域的位置。
更具体地，SSB的频域位置可以由高层信令指示，所述频域位置可以是SSB的中心频点。
在本公开一实施例中，所述中心频点是全球同步信道码(Global synchronization channel number，GSCN)。
所述高层信令指示的可以是SSB中心频点和公共(Common)物理资源块(Physical Resource Block，PRB)index 0之间的偏置。
其中，所述高层信令可以通过基站发送至用户终端。具体地，所述高层信令可以承载在无线资源控制(Radio Resource Control，RRC)信令中，还可以承载在剩余最小系统信息(Remain Minimum System Information，RMSI)中，还可以承载在其他系统信息(Other System Information，OSI)中。
更进一步地，在本公开实施例的一种具体应用中，CSI-RS频域密度可以为3，且频域位置可以从子载波0或者子载波N开始，其中N为自然数，且0≤N≤11。
在本公开实施例的另一种具体应用中，CSI-RS的频域密度可以为1，频域位置可以从子载波N开始。N为自然数，N的取值范围是0到11。
在本公开实施例的又一种具体应用中，CSI-RS的频域密度可以为1/2，频域位置可以从子载波N开始。N为自然数，N的取值范围是0到23。
其中CSI-RS可以设置为多端口，还可以设置为单端口，例如采用1端口。
需要指出的是，还可以通过高层信令指示所述N值。
在步骤S12的具体实施中，基站可以在所述DRS的时频域位置上发送所述DRS。
在本公开实施例中，通过确定DRS的时频域位置，并且在所述DRS的时频域位置上发送所述DRS，可以对CSI-RS的时频域位置进行设置，从而实现基于非授权频谱确定同步和接入的参考信号，有利于提高接收端从发送端接收参考信号的准确性，有助于UE基于DRS进行同步和信道接入。
在本公开的实施例中，描述的SS突发集(SS burst)也可以是一个时间窗，该时间窗的时间长度单位是时隙或者毫秒。
在一个实施例中，所述时间窗是周期的，所述周期是预定义的。
在一个实施例中，所述时间窗是周期的，所述周期通过RRC信令指定。
在一个实施例中，所述时间窗是非周期的，所述时间窗的位置由RRC信令指定。
参照图3，图3是本公开实施例中一种参考信号的接收方法的流程图。所述参考信号的接收方法可以用于用户终端，还可以包括步骤S31以及步骤S32：
步骤S31：获取DRS的时频域位置，所述DRS包括以下至少一种：PSS、SSS、PBCH、用于PBCH的DMRS、用于TRS的CSI-RS、用于波束管理的CSI-RS以及用于获取信道状态信息的CSI-RS；
步骤S32：在所述DRS的时频域位置上接收所述DRS。
进一步地，SSB可以包括相邻符号的PSS、SSS、PBCH和用于PBCH的DMRS，且所述SSB与CSI-RS可以满足如下关系：在所述SSB对应的每个时隙内，至少存在一个CSI-RS资源。
用于TRS的CSI-RS可以位于SS burst中的每个时隙的第0个和第2个符号中的至少一个。
所述PSS可以位于SS burst中的每两个时隙的第4个、第8个、第16个以及第20个符号。
所述SSS可以位于SS burst中的每两个时隙的第6个、第10个、第18个以及第22个符号。
所述PBCH以及所述用于PBCH的DMRS可以位于SS burst中的每两个时隙的第5个、第7个、第9个、第11个、第17个、第19个、第21个以及第23个符号。
所述PBCH以及所述用于PBCH的DMRS位于SS burst中的每两个时隙的第4个至第11个、第16个至第23个符号。
用于波束管理的CSI-RS或者用于获取信道状态信息的CSI-RS可以位于SS burst中的每个时隙的至少一个符号。
CSI-RS频域密度可以为3，且频域位置可以从子载波0或者子载波N开始，其中N为自然数，且0≤N≤11。
CSI-RS频域密度可以为1，且频域位置可以从子载波0或者子载波N开始，其中N为自然数，且0≤N≤11。
CSI-RS频域密度可以为1/2，且频域位置可以从子载波0或者子载波N开始，其中N为自然数，且0≤N≤23。
进一步地，所述的参考信号的发送方法还可以包括：通过高层信令指示N值。
所述的参考信号的发送方法还可以包括：通过高层信令指示所述SSB在时域的位置；通过高层信令指示所述SSB在频域的位置。
所述频域的位置可以包括：所述SSB对应的中心频点。
在本公开一实施例中，所述中心频点是全球同步信道码(Global synchronization channel number，GSCN)。
所述高层信令可以包括：所述SSB对应的中心频点和公共PRB index 0之间的偏置信息。
在具体实施中，有关步骤S31至步骤S32的更多详细内容请参照图1中的步骤S11和S12的描述进行执行，此处不再赘述。
参照图4，图4是本公开实施例中一种基站的结构示意图。所述基站可以包括确定单元41以及发送单元42。
确定单元41，适于确定DRS的时频域位置，所述DRS包括以下至少一种：PSS、SSS、PBCH、用于PBCH的DMRS、用于TRS的CSI-RS、用于波束管理的CSI-RS以及用于获取信道状态信息的CSI-RS；
发送单元42，适于在所述DRS的时频域位置上发送所述DRS。
进一步地，SSB可以包括相邻符号的PSS、SSS、PBCH和用于PBCH的 DMRS，且所述SSB与CSI-RS可以满足如下关系：在所述SSB对应的每个时隙内，至少存在一个CSI-RS资源。
用于TRS的CSI-RS可以位于SS burst中的每个时隙的第0个和第2个符号中的至少一个。
用于波束管理的CSI-RS或者用于获取信道状态信息的CSI-RS可以位于SS burst中的每个时隙的至少一个符号。
进一步地，CSI-RS频域密度可以为3，且频域位置可以从子载波0或者子载波N开始，其中N为自然数，且0≤N≤11。
CSI-RS频域密度可以为1，且频域位置可以从子载波0或者子载波N开始，其中N为自然数，且0≤N≤11。
CSI-RS频域密度可以为1/2，且频域位置可以从子载波0或者子载波N开始，其中N为自然数，且0≤N≤23。
更进一步地，所述基站还可以包括第一指示单元43、第二指数单元44以及第三指示单元45。
其中，第一指示单元43，适于通过高层信令指示N值。
第二指示单元44，适于通过高层信令指示所述SSB在时域的位置。
第三指示单元45，适于通过高层信令指示所述SSB在频域的位置。
更进一步地，所述频域的位置可以包括：所述SSB对应的中心频点。
在本公开一实施例中，所述中心频点是全球同步信道码(Global synchronization channel number，GSCN)。
所述高层信令可以包括：所述SSB对应的中心频点和公共PRB index 0之间的偏置信息。
关于该基站的原理、具体实现和有益效果请参照前文及图1至图2示出的关于参考信号的发送方法的相关描述，此处不再赘述。
图5是本公开实施例中一种终端的结构示意图。所述终端可以包括：
获取单元51，适于获取DRS的时频域位置，所述DRS包括以下至少一 种：PSS、SSS、PBCH、用于PBCH的DMRS、用于TRS的CSI-RS、用于波束管理的CSI-RS以及用于获取信道状态信息的CSI-RS；
接收单元52，适于在所述DRS的时频域位置上接收所述DRS。
进一步地，SSB可以包括相邻符号的PSS、SSS、PBCH和用于PBCH的DMRS，且所述SSB与CSI-RS可以满足如下关系：在所述SSB对应的每个时隙内，至少存在一个CSI-RS资源。
用于TRS的CSI-RS可以位于SS burst中的每个时隙的第0个和第2个符号中的至少一个。
用于波束管理的CSI-RS或者用于获取信道状态信息的CSI-RS可以位于SS burst中的每个时隙的至少一个符号。
关于该用户终端的原理、具体实现和有益效果请参照前文及图3示出的关于参考信号的接收方法的相关描述，此处不再赘述。
本公开实施例还提供了一种存储介质，其上存储有计算机指令，所述计算机指令运行时执行上述执行图1至图2示出的关于参考信号的发送方法的步骤，或者执行图3示出的关于参考信号的接收方法的步骤。所述存储介质可以是计算机可读存储介质，例如可以包括非挥发性存储器(non-volatile)或者非瞬态(non-transitory)存储器，还可以包括光盘、机械硬盘、固态硬盘等。
本公开实施例还提供了一种系统，包括存储器和处理器，所述存储器上存储有能够在所述处理器上运行的计算机指令，所述处理器运行所述计算机指令时执行上述图1至图2示出的关于参考信号的发送方法的步骤，或者执行图3示出的关于参考信号的接收方法的步骤。
虽然本公开披露如上，但本公开并非限定于此。任何本领域技术人员，在不脱离本公开的精神和范围内，均可作各种更动与修改，因此本公开的保护范围应当以权利要求所限定的范围为准。

Claims (36)

  1. 一种参考信号的发送方法，其特征在于，包括：
    确定DRS的时频域位置，所述DRS包括以下至少一种：PSS、SSS、PBCH、用于PBCH的DMRS、用于TRS的CSI-RS、用于波束管理的CSI-RS以及用于获取信道状态信息的CSI-RS；
    在所述DRS的时频域位置上发送所述DRS。
  2. 根据权利要求1所述的参考信号的发送方法，其特征在于，SSB包括相邻符号的PSS、SSS、PBCH和用于PBCH的DMRS，且所述SSB与CSI-RS满足如下关系：
    在所述SSB对应的每个时隙内，至少存在一个CSI-RS资源。
  3. 根据权利要求2所述的参考信号的发送方法，其特征在于，用于TRS的CSI-RS位于SS burst中的每个时隙的第0个和第2个符号中的至少一个。
  4. 根据权利要求2所述的参考信号的发送方法，其特征在于，所述PSS位于SS burst中的每两个时隙的第4个、第8个、第16个以及第20个符号。
  5. 根据权利要求2所述的参考信号的发送方法，其特征在于，所述SSS位于SS burst中的每两个时隙的第6个、第10个、第18个以及第22个符号。
  6. 根据权利要求2所述的参考信号的发送方法，其特征在于，所述PBCH以及所述用于PBCH的DMRS位于SS burst中的每两个时隙的第5个、第7个、第9个、第11个、第17个、第19个、第21个以及第23个符号。
  7. 根据权利要求2所述的参考信号的发送方法，其特征在于，所述PBCH以及所述用于PBCH的DMRS位于SS burst中的每两个时隙的第4个至第11个、第16个至第23个符号。
  8. 根据权利要求2所述的参考信号的发送方法，其特征在于，用于波束管理的CSI-RS或者用于获取信道状态信息的CSI-RS位于SS burst中的每个时隙的至少一个符号。
  9. 根据权利要求2所述的参考信号的发送方法，其特征在于，CSI-RS频域密度为3，且频域位置从子载波0或者子载波N开始，其中N为自然数，且0≤N≤11。
  10. 根据权利要求2所述的参考信号的发送方法，其特征在于，CSI-RS频域密度为1，且频域位置从子载波0或者子载波N开始，其中N为自然数，且0≤N≤11。
  11. 根据权利要求2所述的参考信号的发送方法，其特征在于，CSI-RS频域密度为1/2，且频域位置从子载波0或者子载波N开始，其中N为自然数，且0≤N≤23。
  12. 根据权利要求9至11任一项所述的参考信号的发送方法，其特征在于，还包括：
    通过高层信令指示N值。
  13. 根据权利要求2所述的参考信号的发送方法，其特征在于，还包括：
    通过高层信令指示所述SSB在时域的位置；
    通过高层信令指示所述SSB在频域的位置。
  14. 根据权利要求12所述的参考信号的发送方法，其特征在于，所述频域的位置包括：所述SSB对应的中心频点。
  15. 根据权利要求14所述的参考信号的发送方法，其特征在于，所述高层信令包括：所述SSB对应的中心频点和公共PRB index 0之间的偏置信息。
  16. 一种参考信号的接收方法，其特征在于，包括：
    获取DRS的时频域位置，所述DRS包括以下至少一种：PSS、SSS、PBCH、用于PBCH的DMRS、用于TRS的CSI-RS、用于波束管理的CSI-RS以及用于获取信道状态信息的CSI-RS；
    在所述DRS的时频域位置上接收所述DRS。
  17. 根据权利要求16所述的参考信号的接收方法，其特征在于，SSB包括相邻符号的PSS、SSS、PBCH和用于PBCH的DMRS，且所述SSB与CSI-RS满足如下关系：
    在所述SSB对应的每个时隙内，至少存在一个CSI-RS资源。
  18. 根据权利要求17所述的参考信号的接收方法，其特征在于，用于TRS的 CSI-RS位于SS burst中的每个时隙的第0个和第2个符号中的至少一个。
  19. 根据权利要求17所述的参考信号的接收方法，其特征在于，用于波束管理的CSI-RS或者用于获取信道状态信息的CSI-RS位于SS burst中的每个时隙的至少一个符号。
  20. 一种基站，其特征在于，包括：
    确定单元，适于确定DRS的时频域位置，所述DRS包括以下至少一种：
    PSS、SSS、PBCH、用于PBCH的DMRS、用于TRS的CSI-RS、用于波束管理的CSI-RS以及用于获取信道状态信息的CSI-RS；
    发送单元，适于在所述DRS的时频域位置上发送所述DRS。
  21. 根据权利要求20所述的基站，其特征在于，SSB包括相邻符号的PSS、SSS、PBCH和用于PBCH的DMRS，且所述SSB与CSI-RS满足如下关系：
    在所述SSB对应的每个时隙内，至少存在一个CSI-RS资源。
  22. 根据权利要求21所述的基站，其特征在于，用于TRS的CSI-RS位于SSburst中的每个时隙的第0个和第2个符号中的至少一个。
  23. 根据权利要求21所述的基站，其特征在于，用于波束管理的CSI-RS或者用于获取信道状态信息的CSI-RS位于SS burst中的每个时隙的至少一个符号。
  24. 根据权利要求21所述的基站，其特征在于，CSI-RS频域密度为3，且频域位置从子载波0或者子载波N开始，其中N为自然数，且0≤N≤11。
  25. 根据权利要求21所述的基站，其特征在于，CSI-RS频域密度为1，且频域位置从子载波0或者子载波N开始，其中N为自然数，且0≤N≤11。
  26. 根据权利要求21所述的基站，其特征在于，CSI-RS频域密度为1/2，且频域位置从子载波0或者子载波N开始，其中N为自然数，且0≤N≤23。
  27. 根据权利要求24至26任一项所述的基站，其特征在于，还包括：
    第一指示单元，适于通过高层信令指示N值。
  28. 根据权利要求21所述的基站，其特征在于，还包括：
    第二指示单元，适于通过高层信令指示所述SSB在时域的位置；
    第三指示单元，适于通过高层信令指示所述SSB在频域的位置。
  29. 根据权利要求28所述的基站，其特征在于，所述频域的位置包括：所述SSB对应的中心频点。
  30. 根据权利要求28所述的基站，其特征在于，所述高层信令包括：所述SSB对应的中心频点和公共PRB index 0之间的偏置信息。
  31. 一种终端，其特征在于，包括：
    获取单元，适于获取DRS的时频域位置，所述DRS包括以下至少一种：
    PSS、SSS、PBCH、用于PBCH的DMRS、用于TRS的CSI-RS、用于波束管理的CSI-RS以及用于获取信道状态信息的CSI-RS；
    接收单元，适于在所述DRS的时频域位置上接收所述DRS。
  32. 根据权利要求31所述的终端，其特征在于，SSB包括相邻符号的PSS、SSS、PBCH和用于PBCH的DMRS，且所述SSB与CSI-RS满足如下关系：
    在所述SSB对应的每个时隙内，至少存在一个CSI-RS资源。
  33. 根据权利要求32所述的终端，其特征在于，用于TRS的CSI-RS位于SSburst中的每个时隙的第0个和第2个符号中的至少一个。
  34. 根据权利要求32所述的终端，其特征在于，用于波束管理的CSI-RS或者用于获取信道状态信息的CSI-RS位于SS burst中的每个时隙的至少一个符号。
  35. 一种存储介质，所述存储介质为非易失性存储介质或非瞬态存储介质，其上存储有计算机指令，其特征在于，所述计算机指令运行时执行权利要求1至15中任一项所述参考信号的发送方法或者16至19中任一项所述参考信号的接收方法的步骤。
  36. 一种系统，包括存储器和处理器，所述存储器上存储有可在所述处理器上运行的计算机指令，其特征在于，所述处理器运行所述计算机指令时执行权利要求1至15中任一项所述参考信号的发送方法或者16至19中任一项所述参考信号的接收方法的步骤。
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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114071537B (zh) * 2020-08-07 2024-12-03 维沃移动通信有限公司 测量参考信号的方法、终端设备和网络设备
CN115915349A (zh) * 2021-08-24 2023-04-04 展讯通信（上海）有限公司 一种通信方法及相关装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101500242A (zh) * 2008-02-01 2009-08-05 大唐移动通信设备有限公司 一种配置上行探测参考信号的方法和装置
WO2014067487A1 (zh) * 2012-11-02 2014-05-08 华为技术有限公司 避免d2d传输干扰的处理方法、用户设备和基站
CN106162922A (zh) * 2015-01-27 2016-11-23 中兴通讯股份有限公司 发现信号的处理方法及装置
CN107135527A (zh) * 2016-02-26 2017-09-05 中兴通讯股份有限公司 一种信号传输方法、终端及网络侧设备

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9749075B2 (en) * 2013-09-27 2017-08-29 Mediatek Inc. Methods of discovery and measurements for small cells in OFDM/OFDMA systems
CN106411805B (zh) * 2015-07-28 2020-06-16 中兴通讯股份有限公司 一种非授权载波的同步信号的发送方法和基站
CN107302424A (zh) * 2016-04-15 2017-10-27 中兴通讯股份有限公司 一种系统信息的发送方法和装置
CN107659525B (zh) * 2016-07-26 2021-05-25 普天信息技术有限公司 下行导频信号发送方法及装置
US11943724B2 (en) * 2017-02-03 2024-03-26 Interdigital Patent Holdings, Inc. Broadcast channel transmission and demodulation
CN108476485B (zh) * 2017-05-05 2020-12-04 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
WO2018201475A1 (zh) * 2017-05-05 2018-11-08 富士通株式会社 信息指示方法、检测方法及其装置、通信系统
WO2019022577A1 (ko) * 2017-07-28 2019-01-31 엘지전자 주식회사 방송 채널을 송수신하는 방법 및 이를 위한 장치
US10432330B2 (en) * 2017-08-15 2019-10-01 At&T Intellectual Property I, L.P. Base station wireless channel sounding
KR102314295B1 (ko) * 2017-09-07 2021-10-20 베이징 시아오미 모바일 소프트웨어 컴퍼니 리미티드 상향링크 빔 관리
CN107682133B (zh) * 2017-09-20 2020-08-14 宇龙计算机通信科技(深圳)有限公司 一种发现参考信号的生成方法、装置及网络侧设备
KR20200088858A (ko) * 2017-11-17 2020-07-23 노키아 테크놀로지스 오와이 새로운 라디오에서 시간 및 주파수 추적 참조 신호 사용을 위한 방법 및 장치
CN110149188A (zh) * 2018-02-13 2019-08-20 展讯通信（上海）有限公司 参考信号的发送及接收方法、基站、终端、可读介质
EP3545719B1 (en) * 2018-02-16 2021-12-29 Telefonaktiebolaget LM Ericsson (publ) Time domain resource allocation for downlink shared channel
US11160050B2 (en) * 2018-03-28 2021-10-26 Samsung Electronics Co., Ltd. Method and apparatus for supporting large subcarrier spacing for SS/PBCH block
CN112511987B (zh) * 2020-03-05 2024-04-26 中兴通讯股份有限公司 无线传输方法和装置、信息确定方法和装置、电子设备
MX2022012889A (es) * 2020-04-14 2023-01-16 Huawei Tech Co Ltd Método para transmitir bloque de sincronización/canal de transmision física y aparato.
US11821000B2 (en) * 2020-11-10 2023-11-21 Dionex Corporation Method of separating viral vectors

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101500242A (zh) * 2008-02-01 2009-08-05 大唐移动通信设备有限公司 一种配置上行探测参考信号的方法和装置
WO2014067487A1 (zh) * 2012-11-02 2014-05-08 华为技术有限公司 避免d2d传输干扰的处理方法、用户设备和基站
CN106162922A (zh) * 2015-01-27 2016-11-23 中兴通讯股份有限公司 发现信号的处理方法及装置
CN107135527A (zh) * 2016-02-26 2017-09-05 中兴通讯股份有限公司 一种信号传输方法、终端及网络侧设备

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
HTC: "Measurement and Synchronization for LAA-LTE", 3GPP TSG RAN WGI MEETING #79 R1-144928, 21 November 2014 (2014-11-21), XP050875981 *

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