WO2020199933A1 - Procédé et dispositif de détermination de position de transmission de bloc de signaux de synchronisation de liaison latérale, et support - Google Patents

Procédé et dispositif de détermination de position de transmission de bloc de signaux de synchronisation de liaison latérale, et support Download PDF

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Publication number
WO2020199933A1
WO2020199933A1 PCT/CN2020/080196 CN2020080196W WO2020199933A1 WO 2020199933 A1 WO2020199933 A1 WO 2020199933A1 CN 2020080196 W CN2020080196 W CN 2020080196W WO 2020199933 A1 WO2020199933 A1 WO 2020199933A1
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WIPO (PCT)
Prior art keywords
ssb
configuration information
synchronization signal
time window
pattern
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PCT/CN2020/080196
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English (en)
Chinese (zh)
Inventor
王勇
刘思綦
吴凯
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维沃移动通信有限公司
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Publication of WO2020199933A1 publication Critical patent/WO2020199933A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/0205—Traffic management, e.g. flow control or congestion control at the air interface
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/04—Error control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/001—Synchronization between nodes

Definitions

  • the present disclosure relates to the field of communication technologies, and in particular to a method, equipment and medium for determining the transmission position of a side link synchronization signal block.
  • the New Radio (NR) Vehicle to X (V2X) terminal can transmit Sidelink Synchronization Signal Block (S-SSB) on the NR frequency band.
  • the base station may send a downlink signal on the NR frequency band, and the downlink signal includes a synchronization signal block (Synchronization Signal Block, SSB).
  • SSB Synchronization Signal Block
  • the NR V2X terminal may be a mobile terminal, a road side unit (RSU) and other devices that support V2X services.
  • the NR V2X terminal in the initial access process or the NR V2X terminal in the idle state receives the downlink signal including the SSB sent by the base station. Further, the terminal can also receive the system information block SIB broadcast by the base station.
  • the embodiments of the present disclosure provide a method, equipment and medium for determining the transmission position of a side link synchronization signal block to transmit the S-SSB.
  • embodiments of the present disclosure provide a method for determining the transmission position of a side link synchronization signal block, and the method includes:
  • the configuration information determine the location for S-SSB transmission.
  • embodiments of the present disclosure provide a method for determining the transmission position of a side link synchronization signal block, the method includes:
  • the configuration information of the side link synchronization signal block S-SSB is sent to the terminal device, so that the terminal device determines the location for S-SSB transmission according to the configuration information.
  • embodiments of the present disclosure provide a device for determining the transmission position of a side link synchronization signal block, the device including:
  • the acquiring unit is used to acquire the configuration information of the side link synchronization signal block S-SSB;
  • the determining unit is used to determine the location for S-SSB transmission according to the configuration information.
  • embodiments of the present disclosure provide a device for determining the transmission position of a side link synchronization signal block, the device including:
  • the sending unit is used to send configuration information of the side link synchronization signal block S-SSB to the terminal device, so that the terminal device determines the location for S-SSB transmission according to the configuration information.
  • the embodiments of the present disclosure provide a device for determining the transmission position of a side link synchronization signal block.
  • the device includes a processor, a memory, and a computer program stored in the memory and running on the processor.
  • the computer program is executed by the processor. The steps of the method for determining the transmission position of the side link synchronization signal block provided by the embodiment of the present disclosure are realized.
  • an embodiment of the present disclosure provides a computer-readable storage medium, and a computer program is stored on the computer-readable storage medium.
  • the computer program is executed by a processor, the side link synchronization signal block transmission position determination provided by the embodiment of the present disclosure A step of.
  • the method, device, and medium for determining the transmission position of the side link synchronization signal block in the embodiments of the present disclosure obtain configuration information of the side link synchronization signal block S-SSB; and determine the position for S-SSB transmission according to the configuration information.
  • the transmission of the S-SSB at the determined position can reduce the probability of collision between the transmitted S-SSB and the downlink signal sent by the base station.
  • Figure 1 shows the possible locations of NR SSB
  • Figure 2 shows the possible locations of search space 0
  • Figure 3 shows the combination of NR SSB and search space 0 positions
  • FIG. 4 shows a first schematic diagram of a pattern provided by an embodiment of the present disclosure
  • Figure 5 shows a second schematic diagram of a pattern provided by an embodiment of the present disclosure
  • FIG. 6 shows a third schematic diagram of a pattern provided by an embodiment of the present disclosure.
  • FIG. 7 shows a fourth schematic diagram of a pattern provided by an embodiment of the present disclosure.
  • FIG. 8 shows a fifth schematic diagram of a pattern provided by an embodiment of the present disclosure.
  • FIG. 9 shows a sixth schematic diagram of a pattern provided by an embodiment of the present disclosure.
  • FIG. 10 shows a schematic flowchart of a side link synchronization signal block transmission method provided by an embodiment of the present disclosure
  • FIG. 11 shows a schematic diagram of the hardware structure of a terminal device provided by an embodiment of the present disclosure
  • FIG. 12 shows a schematic diagram of the hardware structure of a network side device provided by an embodiment of the present disclosure.
  • the Sidelink resources that NR V2X terminals can use may overlap with Initial Active BWP.
  • S-SSB may conflict with the downlink signal sent by the base station.
  • SCS 15kHz
  • NR SSB When the number is 8, the possible positions of the NR SSB within 20 milliseconds are shown in Figure 1.
  • the offsets are 0/2/5/7ms respectively.
  • the NR SSB transmission position is candidate position 1
  • the four transmission combinations corresponding to search space 0 are shown in Figure 3. If there is NR SSB or Type 0 PDCCH Search Space, sending S-SSB may cause conflict.
  • the embodiments of the present disclosure provide a method, device and medium for determining the transmission position of a side link synchronization signal block.
  • the method for determining the transmission position of the side link synchronization signal block applied to the side link terminal device may include: obtaining configuration information of the side link synchronization signal block S-SSB; The location of the SSB transmission. Among them, the transmission can be sending or receiving.
  • the position may be a candidate time domain position of the S-SSB, specifically, the candidate time domain position may be a candidate time domain position of a slot containing the S-SSB.
  • the position may be the time domain position of the actually transmitted S-SSB.
  • the time domain position is the time domain position of the slot containing the actually transmitted S-SSB.
  • the method for determining the transmission position of the side link synchronization signal block in the embodiment of the present disclosure is to obtain the configuration information of the side link synchronization signal block S-SSB; according to the configuration information, determine at least one downlink signal that is not related to NR (such as NR SSB and or Type 0 PDCCH Search Space resources) conflicting pattern, the S-SSB position in the pattern can be used for transmission, thereby reducing the probability of collision between the transmitted S-SSB and the downlink signal sent by the base station.
  • NR such as NR SSB and or Type 0 PDCCH Search Space resources
  • obtaining configuration information of the side link synchronization signal block S-SSB may include any one of the following items:
  • the network-side equipment provided by the embodiments of the present disclosure may be a base station, which may be a commonly used base station, an evolved node base station (eNB), or the fifth generation (5G)
  • eNB evolved node base station
  • 5G fifth generation
  • the network side equipment in the system for example, the next generation node base station, gNB or the network side equipment in the subsequent evolution communication system.
  • gNB next generation node base station
  • 5G fifth generation
  • the configuration information in the case of receiving configuration information sent by other sidelink terminal devices, the configuration information may be carried by at least one of the following items:
  • Physical sidelink broadcast channel Physical sidelink broadcast channel (Physical sidelink broadcast channel, PSBCH) payload (payload), reference signal, synchronization signal and radio resource control (Radio Resource Control, RRC) signaling.
  • PSBCH Physical sidelink broadcast channel
  • RRC Radio Resource Control
  • the PSBCH payload includes bits corresponding to pattern information.
  • the bit corresponding to the pattern information is not scrambled.
  • the scrambling code corresponding to the corresponding bit of the pattern information is zero.
  • the PSBCH may carry at least some bits of at least one of pattern information, time window position information, and S-SSB index (index).
  • different demodulation reference signal (Demodulation Reference Signal, DMRS) sequences correspond to different patterns, so that the pattern information can be indicated by different DMRS sequences.
  • DMRS Demodulation Reference Signal
  • N is related to the sequence length
  • a(i) represents the information-carrying bits, which can be mapped to different DMRS sequences through different initial values of the sequence, thereby carrying different indication information, so the DMRS carries N bit information.
  • each sequence corresponds to a different phase rotation, and can be mapped to different DMRS sequences through different phase rotation values, thereby carrying different indication information.
  • the DMRS carries N bits information, which includes pattern indication information X bits, time window position Y bits, S-SSB index indicates Z bits, and the sum of X, Y, and Z is not greater than N.
  • the content carried by the DMRS may be related to the value of the number L of S-SSB positions.
  • the x1 bits in the DMRS information is used for pattern indication
  • y1 bits are used for time window position indication
  • z1 bits are used for S-SSB index indication.
  • the z4 bits in the DMRS carrying information is used for S-SSB index indication.
  • the configuration information when the configuration information is carried by the synchronization signal, the configuration information may be carried by at least one of the following items:
  • the relative position relationship between synchronization signals in the S-SSB includes any one of the following items:
  • S-PSS sidelink Primary Synchronization Signal
  • S-SSS sidelink Secondary Synchronization Signal
  • S-PSS The relative position relationship between the sidelink Secondary Synchronization Signal
  • the phase difference between the synchronization signals in the S-SSB includes any one of the following items:
  • phase difference between S-PSS the phase difference between S-SSS, and the phase difference between S-PSS and S-SSS.
  • the side link terminal device sends configuration information indicating the pattern information of its S-SSB and/or the number of S-SSB positions L.
  • the side link terminal device that receives the configuration information can determine the received S-SSB through the received configuration information The corresponding pattern and/or L.
  • the configuration in the case of receiving the configuration information sent by the network side device, the configuration may be carried through system information block (System Information Block, SIB) or dedicated radio resource control (Radio Resource Control, RRC) signaling information.
  • SIB System Information Block
  • RRC Radio Resource Control
  • the location includes any of the following items:
  • the value of the number L of S-SSB positions may be any one of the following values: 1, 2, 4, and 8.
  • FIG. 4 shows the pattern provided by the embodiment of the present disclosure.
  • the S-SSB position in the pattern shown in Figure 4 includes the following situations:
  • Pattern1: L 1, the S-SSB position is one slot after the time window, and the index of the slot where the first S-SSB position is located in the time window is 4.
  • FIG. 5 shows the pattern corresponding to the S-SSB position.
  • the S-SSB position in the pattern shown in Figure 5 includes the following situations:
  • Pattern1: L 1, the S-SSB position is one slot after the time window, and the index of the slot where the first S-SSB position is located in the time window is 9.
  • FIG. 6 shows a third schematic diagram of the pattern provided by the embodiment of the present disclosure.
  • the S-SSB position in the pattern shown in Figure 6 includes the following situations:
  • Pattern1: L 1, the S-SSB position is one slot after the time window, and the index of the slot where the first S-SSB position is located in the time window is 19.
  • FIG. 7 shows a fourth schematic diagram of the pattern provided by the embodiment of the present disclosure.
  • the S-SSB position in the pattern shown in Figure 7 includes the following situations:
  • Pattern1: L 1, the S-SSB position is one slot after the time window, and the index of the slot where the first S-SSB position is located in the time window is 39.
  • FIG. 8 shows the fifth schematic diagram of the pattern provided by the embodiment of the present disclosure.
  • the S-SSB position in the pattern shown in Figure 8 includes the following situations:
  • Pattern1: L 1, the S-SSB position is one slot after the time window, and the index of the slot where the first S-SSB position is located in the time window is 4.
  • FIG. 9 shows the sixth schematic diagram of the pattern provided in the embodiment of the present disclosure.
  • the S-SSB position in the pattern shown in Figure 9 includes the following situations:
  • Pattern1: L 1, the S-SSB position is one slot after the time window, and the index of the slot where the first S-SSB position is located in the time window is 9.
  • the configuration information may include:
  • At least one pattern of S-SSB and/or number of S-SSB positions are provided.
  • determining the location for S-SSB transmission according to the configuration information may include: determining the location corresponding to the pattern as being used for The location of the S-SSB transmission.
  • the obtained pattern is: the time window size is pattern7 among 10 slots, the last 8 slots of the time window are determined as the positions for S-SSB transmission.
  • determining the position for S-SSB transmission according to the configuration information may include: according to the correspondence between the number of S-SSB positions and the pattern , To determine the location for S-SSB transmission.
  • the corresponding relationship between the number of S-SSB positions and the pattern is as follows:
  • the number of S-SSB positions When the number of S-SSB positions is 1, the number of S-SSB positions corresponds to pattern1 and pattern2; when the number of S-SSB positions is 2, the number of S-SSB positions corresponds to pattern3 and pattern4; when the number of S-SSB positions is 4, S -The number of SSB positions corresponds to pattern5 and pattern6; when the number of S-SSB positions is 8, the number of S-SSB positions corresponds to pattern7 and pattern8.
  • pattern3 and pattern4 are determined, and the S-SSB positions included in pattern3 and pattern4 are determined to be used for S-SSB.
  • the location of the SSB transmission is assuming that the number of positions acquired is 2, then according to the corresponding relationship between the number of S-SSB positions and pattern, pattern3 and pattern4 are determined, and the S-SSB positions included in pattern3 and pattern4 are determined to be used for S-SSB. The location of the SSB transmission.
  • the pattern may be related to frequency domain information. Based on this, in the case where the configuration information includes multiple patterns of S-SSB, determining the location for S-SSB transmission according to the configuration information may include: according to the correspondence between frequency domain information and patterns, from multiple patterns In, determine the location for S-SSB transmission. Among them, the frequency domain information includes frequency points or frequency bands or frequency domain ranges.
  • the number of S-SSB positions is 1; when in the frequency domain B, the number of S-SSB positions is 2; when in the frequency domain C, the number of S-SSB positions is 4; In the frequency domain interval D, the number of S-SSB positions is 8.
  • Any two frequency domain intervals in the above frequency domain interval may or may not overlap.
  • the overlap of two frequency domain intervals indicates that the same frequency domain resources exist in the two frequency domain intervals.
  • the terminal device may determine the number of S-SSB positions according to the corresponding relationship between the frequency domain interval and the number of S-SSB positions through the frequency domain interval to which it currently belongs.
  • the pattern is determined according to the corresponding relationship between the number of S-SSB positions and the pattern, and the S-SSB positions included in the determined pattern are determined as positions for S-SSB transmission.
  • the frequency domain information has a corresponding relationship with the number of S-SSB positions, and the number of S-SSB positions has a corresponding relationship with the pattern, then the frequency domain information has a corresponding relationship with the pattern.
  • the value of the number of S-SSB positions may also be related to the SCS. Based on this, determining the location for S-SSB transmission according to the configuration information may include: according to the corresponding relationship between frequency domain information and pattern and the corresponding relationship between SCS and pattern, from the multiple patterns, determining the location for S-SSB transmission -The location of the SSB transmission.
  • the terminal device determines that the current frequency point belongs to M, and determines that the number of S-SSB positions is 1 according to the correspondence between the frequency domain interval and the number of S-SSB positions. 2, 4 and 8. Then according to the corresponding relationship between the number of SCS and S-SSB positions, the value of the number of S-SSB positions is determined to be 2. According to the correspondence between the number of S-SSB positions and the pattern, pattern3 and pattern4 are determined, and the S-SSB positions included in pattern3 and pattern4 are determined as positions for S-SSB transmission.
  • the number of S-SSB positions when the number of S-SSB positions is related to SCS, the number of S-SSB positions may be different for different SCS in the same frequency domain interval (that is, for different SCS, the A ⁇ B ⁇ C ⁇ D division method may be different);
  • the frequency domain is 3-6 GHz
  • the user can determine the number of S-SSB positions according to the frequency domain interval and SCS.
  • the pattern is determined, and the S-SSB positions included in the determined pattern are determined as positions for S-SSB transmission.
  • the pattern may be related to SCS. Based on this, in the case where the configuration information includes multiple patterns of S-SSB, determining the location for S-SSB transmission according to the configuration information may include: according to the correspondence between SCS and pattern, from multiple patterns, Determine the location for S-SSB transmission.
  • the number of S-SSB positions belongs to interval E; when SCS is 30KHz, the number of S-SSB positions belongs to interval F; when SCS is 60KHz, the number of S-SSB positions belongs to interval G; when SCS is 120KHz , The number of S-SSB positions belongs to interval H.
  • Any two of the above intervals may or may not overlap.
  • the number of S-SSB positions in interval E can be ⁇ 1, 2, 4 ⁇ , can also be ⁇ 2, 4 ⁇ , or can be ⁇ 1 ⁇ .
  • the number of S-SSB positions in interval F can be ⁇ 1, 2, 4 ⁇ , ⁇ 2, 4 ⁇ , or ⁇ 1 ⁇ .
  • the number of S-SSB positions in interval G can be ⁇ 2, 4, 8 ⁇ , ⁇ 1, 2, 4 ⁇ , ⁇ 4, 8 ⁇ , ⁇ 2, 4 ⁇ , or ⁇ 1 ⁇ .
  • the number of S-SSB positions in interval H can be ⁇ 2, 4, 8 ⁇ , ⁇ 1, 2, 4 ⁇ , ⁇ 4, 8 ⁇ , ⁇ 2, 4 ⁇ , or ⁇ 1 ⁇ .
  • the interval corresponding to each SCS may have only one S-SSB position number.
  • the number of S-SSB positions is 1; when SCS is 30KHz, the number of S-SSB positions is 2; when SCS is 60KHz, the number of S-SSB positions is 4; when SCS is 120KHz When the number of S-SSB positions is 8.
  • the number of S-SSB positions is 1; when SCS is 30KHz, the number of S-SSB positions is 1; when SCS is 60KHz, the number of S-SSB positions is 1; when SCS is 120KHz When the number of S-SSB positions is 1.
  • the number of S-SSB positions is 1; when SCS is 30KHz, the number of S-SSB positions is 2; when SCS is 60KHz, the number of S-SSB positions is 2; when SCS is 120KHz When the number of S-SSB positions is 2.
  • the interval corresponding to at least one SCS includes multiple values of the number of S-SSB positions.
  • the number of S-SSB positions may also be related to frequency domain information.
  • the subsets corresponding to L on any two different frequency domain information do not overlap.
  • the interval to which the number of S-SSB positions belongs contains K possible values ⁇ L1, L2..., LK ⁇ .
  • the value of L may be related to frequency domain information only, or may be related to only SCS, or may be related to both frequency domain information and SCS.
  • the configuration information further includes: S-SSB period and/or time window position information.
  • the time window size is any one of the following values: 5 slots, 10 slots, and 5 milliseconds.
  • the time window position information is used to indicate whether the time window is located in the first half of a frame or the second half of a frame. It can be understood that one frame is continuous 10 milliseconds.
  • the time window position information is used to indicate which 5 slots the time window is located in a frame.
  • the time window position information is used to indicate which 10 slots in a frame the time window is located.
  • the sidelink terminal device does not expect to be configured with an S-SSB period of less than 20 milliseconds, for example, the unsupported S-SSB period is not less than 20 milliseconds. In some other embodiments of the present disclosure, if the side link terminal is not configured with an S-SSB period, the side link terminal device considers the S-SSB period to be 20 milliseconds or greater. That is, the S-SSB period is greater than or equal to 20 milliseconds.
  • the transmission S-SSB period is configured to be a period greater than or equal to 20 milliseconds.
  • the above-mentioned time limit on the S-SSB period may only be effective in the NR band.
  • NR V2X service is performed on the NR frequency band, it needs to comply with the above-mentioned time limit on the S-SSB cycle.
  • the configuration information further includes: location information of the NR downlink signal.
  • the location information of the downlink signal may be the location information of the NR SSB, including the location indication information of the half frame where the NR SSB is located (for example, half frame bit), the location indication information of the actually sent NR SSB, type 0 PDCCH search in the NR SSB period At least one item of space configuration information.
  • the configuration information of type0 PDCCH search space may include at least one of monitoring window time offset O and monitoring window position information M. Among them, O is used to control the offset of the start point of the type0 PDCCH search space monitoring window, and M is used to control the relative position relationship between the type0 PDCCH search space monitoring windows corresponding to two adjacent SSBs.
  • the configuration information includes the position indication information of the half frame where the NR SSB is located, and the information indicates that the half frame where the NR SSB is located is located in the first half of a frame.
  • the side link terminal can choose not to overlap the half frame. pattern, and use the position contained in the pattern as the candidate position for transmitting S-SSB.
  • the configuration information contains O and M.
  • the side link terminal can determine the position of the NR type 0 PDCCH search space monitoring window, so as to select a pattern that does not overlap the position of the monitoring window, and use the position contained in the pattern as Candidate position for transmitting S-SSB.
  • a more specific example is that a side link terminal outside the coverage of the base station receives configuration information sent by other side link terminals within the coverage of the base station.
  • the configuration information includes the position indication information of the half frame where the NR SSB is located, and the information indicates The half-frame where the NR SSB is located is in the first half of a frame.
  • the covered external side link terminal can select a pattern that does not overlap with the half-frame, and use the position contained in the pattern as the position for transmitting the S-SSB to avoid When the covered external side link terminal transmits the S-SSB, it causes interference when the cell edge user receives the NR SSB.
  • a side link terminal outside the coverage of the base station receives configuration information sent by other side link terminals within the coverage of the base station, and the configuration information contains O and M.
  • the side link terminal outside the coverage can determine NR type 0 PDCCH searches the position of the space monitoring window to select a pattern that does not overlap with the position of the monitoring window, and use the candidate positions contained in the pattern as candidate positions for transmitting S-SSB, thereby avoiding the coverage of the external side link terminal transmitting S- SSB causes interference to cell edge users receiving SIB1PDCCH.
  • the configuration information further includes: frequency domain location information of the S-SSB.
  • the frequency domain position information of the S-SSB includes: the distance of the S-SSB relative to the reference point, at least one frequency domain position used to transmit the S-SSB, and the S-SSB frequency domain repetition factor.
  • the reference point can be the border or center position of a certain resource pool, the border or center position of the sidelink bwp, the border or center position of the sidelink carrier, the reference point that defines the sidelink bwp, the reference point that defines the sidelink resource interval (for example, sidelink point a ), or a resource block (resource block, RB) closest to the S-SSB.
  • the frequency domain repetition factor of the S-SSB indicates the number of repeated transmissions of the S-SSB in the frequency domain within a certain frequency domain.
  • the configuration information includes an S-SSB frequency domain repetition factor, which indicates that the frequency domain is repeated 4 times, and one of the following situations may occur:
  • the sidelink terminal can send 4 S-SSBs in the form of frequency-division multiplexing (FDM) within a predetermined frequency domain.
  • FDM frequency-division multiplexing
  • the sidelink terminal When receiving configuration information sent by other sidelink terminals, the sidelink terminal considers that the other sidelink terminals have sent 4 S-SSBs in the form of FDM within the predetermined frequency domain.
  • the possible behaviors of the sidelink terminal are:
  • the sidelink terminal does not transmit S-SSB on overlapping resources.
  • the sidelink terminal does not transmit S-SSB on overlapping symbols; or, the sidelink terminal does not transmit S-SSB on overlapping RBs; or
  • the link terminal does not transmit the S-SSB on overlapping resource elements (RE).
  • RE resource elements
  • FIG. 10 shows a schematic flowchart of a method for determining a transmission position of a side link synchronization signal block according to an embodiment of the present disclosure.
  • the method for determining the transmission position of the side link synchronization signal block may include:
  • S701 Acquire configuration information of S-SSB.
  • S702 Determine a location for S-SSB transmission according to the configuration information.
  • the configuration information includes:
  • At least one pattern of S-SSB and/or the number of S-SSB positions are provided.
  • the configuration information includes a pattern of S-SSB
  • determine the location for S-SSB transmission including:
  • the configuration information includes the number of S-SSB positions
  • determine the location for S-SSB transmission including:
  • the position used for S-SSB transmission is determined.
  • the configuration information when the configuration information includes multiple patterns of S-SSB,
  • determine the location for S-SSB transmission including:
  • At least one pattern is selected from multiple patterns; the position corresponding to the selected pattern is determined as the position for S-SSB transmission.
  • obtaining configuration information of the side link synchronization signal block S-SSB includes any one of the following items:
  • PSBCH payload reference signal
  • synchronization signal reference signal
  • RRC signaling synchronization signal
  • the relative position relationship between synchronization signals in the S-SSB includes any one of the following items:
  • the phase difference between the synchronization signals in the S-SSB includes any one of the following items:
  • phase difference between S-PSS the phase difference between S-SSS, and the phase difference between S-PSS and S-SSS.
  • the configuration information is carried through SIB or dedicated RRC signaling.
  • the location includes any of the following items:
  • the number L of S-SSB positions can be any one of the following values: 1, 2, 4, and 8.
  • the configuration information further includes: S-SSB period and/or time window position information.
  • the time window size is any one of the following values: 5 slots, 10 slots, and 5 milliseconds.
  • the S-SSB period is greater than or equal to 20 milliseconds.
  • the configuration S-SSB period is greater than or equal to 20 milliseconds.
  • the S-SSB period greater than or equal to 20 milliseconds is only valid for the NR band.
  • the configuration information further includes: location information of the NR downlink signal.
  • the location information of the downlink signal may be the location information of the NR SSB, including the location indication information of the half frame where the NR SSB is located (for example, half frame bit), the location indication information of the actually sent NR SSB, type 0 PDCCH search in the NR SSB period At least one item of space configuration information.
  • the configuration information of type0 PDCCH search space may include at least one of monitoring window time offset O and monitoring window position information M.
  • the configuration information includes the position indication information of the half frame where the NR SSB is located, and the information indicates that the half frame where the NR SSB is located is located in the first half of a frame.
  • the side link terminal can choose not to overlap the half frame. pattern, and use the position contained in the pattern as the candidate position for transmitting S-SSB.
  • the configuration information contains O and M.
  • the side link terminal can determine the position of the NR type 0 PDCCH search space monitoring window, so as to select a pattern that does not overlap the position of the monitoring window, and use the position contained in the pattern as Candidate position for transmitting S-SSB.
  • a more specific example is that a side link terminal outside the coverage of the base station receives configuration information sent by other side link terminals within the coverage of the base station.
  • the configuration information includes the position indication information of the half frame where the NR SSB is located, and the information indicates The half-frame where the NR SSB is located is in the first half of a frame.
  • the covered external side link terminal can select a pattern that does not overlap with the half-frame, and use the position contained in the pattern as the position for transmitting the S-SSB to avoid When the covered external side link terminal transmits the S-SSB, it causes interference when the cell edge user receives the NR SSB.
  • a side link terminal outside the coverage of the base station receives configuration information sent by other side link terminals within the coverage of the base station, and the configuration information contains O and M.
  • the side link terminal outside the coverage can determine NR type 0 PDCCH searches the position of the space monitoring window to select a pattern that does not overlap with the position of the monitoring window, and use the candidate positions contained in the pattern as candidate positions for transmitting S-SSB, thereby avoiding the coverage of the external side link terminal transmitting S- SSB causes interference to cell edge users receiving SIB1PDCCH.
  • the configuration information further includes: frequency domain location information of the S-SSB.
  • the frequency domain position information of the S-SSB includes: the distance of the S-SSB relative to the reference point, at least one frequency domain position used to transmit the S-SSB, and the S-SSB frequency domain repetition factor.
  • the reference point can be the border or center position of a certain resource pool, the border or center position of the sidelink bwp, the border or center position of the sidelink carrier, the reference point that defines the sidelink bwp, the reference point that defines the sidelink resource interval (for example, sidelink point a ), or a resource block (resource block, RB) closest to the S-SSB.
  • the frequency domain repetition factor of the S-SSB indicates the number of repeated transmissions of the S-SSB in the frequency domain within a certain frequency domain.
  • the configuration information includes an S-SSB frequency domain repetition factor, which indicates that the frequency domain is repeated 4 times, and one of the following situations may occur:
  • the sidelink terminal can send 4 S-SSBs in the form of FDM within a predetermined frequency domain.
  • the sidelink terminal When receiving configuration information sent by other sidelink terminals, the sidelink terminal considers that the other sidelink terminals have sent 4 S-SSBs in the form of FDM within the predetermined frequency domain.
  • the possible behaviors of the sidelink terminal are: The sidelink terminal does not transmit S-SSB on overlapping resources.
  • the sidelink terminal does not transmit S-SSB on overlapping symbols; or, the sidelink terminal does not transmit S-SSB on overlapping RBs; or The link terminal does not transmit S-SSB on overlapping REs.
  • the method for determining the transmission position of the side link synchronization signal block may include:
  • the device sending configuration information is a network side device
  • the configuration information is carried through SIB or dedicated RRC signaling.
  • the device sending the configuration information is other terminal devices
  • PSBCH payload reference signal
  • synchronization signal reference signal
  • RRC signaling synchronization signal
  • the relative position relationship between synchronization signals in the S-SSB includes any one of the following items:
  • the phase difference between the synchronization signals in the S-SSB includes any one of the following items:
  • phase difference between S-PSS the phase difference between S-SSS, and the phase difference between S-PSS and S-SSS.
  • the location includes any of the following items:
  • the number L of S-SSB positions can be any one of the following values: 1, 2, 4, and 8.
  • the configuration information includes:
  • At least one pattern of S-SSB and/or the number of S-SSB positions are provided.
  • the configuration information further includes:
  • the time window size is any one of the following values: 5 slots, 10 slots, and 5 milliseconds.
  • the S-SSB period is greater than or equal to 20 milliseconds.
  • the terminal device configures the S-SSB period to be greater than or equal to 20 milliseconds.
  • the S-SSB period greater than or equal to 20 milliseconds is only valid for the NR band.
  • the configuration information further includes:
  • the configuration information further includes at least one of the following items:
  • the configuration information further includes: frequency domain location information of the S-SSB.
  • the embodiment of the present disclosure also provides a device for determining the transmission position of the side link synchronization signal block. It can be understood that the device for determining the transmission position of the side link synchronization signal block provided in this embodiment is a side link terminal device.
  • the device for determining the transmission position of the side link synchronization signal block may include:
  • the acquiring unit is used to acquire the configuration information of the side link synchronization signal block S-SSB;
  • the determining unit is used to determine the location for S-SSB transmission according to the configuration information.
  • the configuration information includes:
  • At least one pattern of S-SSB and/or the number of S-SSB positions are provided.
  • the determining unit when the configuration information includes a pattern of the S-SSB, the determining unit is specifically used for:
  • the determining unit when the configuration information includes the number of S-SSB positions, the determining unit is specifically used for:
  • the position used for S-SSB transmission is determined.
  • the determining unit is specifically used for:
  • At least one pattern is selected from multiple patterns; the position corresponding to the selected pattern is determined as the position for S-SSB transmission.
  • the acquiring unit is specifically used for any one of the following items:
  • PSBCH payload reference signal
  • synchronization signal reference signal
  • RRC signaling synchronization signal
  • the relative position relationship between synchronization signals in the S-SSB includes any one of the following items:
  • the phase difference between the synchronization signals in the S-SSB includes any one of the following items:
  • phase difference between S-PSS the phase difference between S-SSS, and the phase difference between S-PSS and S-SSS.
  • the configuration information is carried through SIB or dedicated RRC signaling.
  • the location includes any of the following items:
  • the number L of S-SSB positions can be any one of the following values: 1, 2, 4, and 8.
  • the configuration information further includes: S-SSB period and/or time window position information.
  • the time window size is any one of the following values: 5 slots, 10 slots, and 5 milliseconds.
  • the S-SSB period is greater than or equal to 20 milliseconds.
  • the configuration S-SSB period is greater than or equal to 20 milliseconds.
  • the S-SSB period greater than or equal to 20 milliseconds is only valid for the NR band.
  • the configuration information further includes:
  • the configuration information further includes: frequency domain location information of the S-SSB.
  • the embodiment of the present disclosure also provides a device for determining the transmission position of the side link synchronization signal block. It can be understood that the device for determining the transmission position of the side link synchronization signal block provided in this embodiment is a network side device or a side link terminal device. The device for determining the transmission position of the side link synchronization signal block may include:
  • the sending unit is used to send the configuration information of the S-SSB to the terminal device, so that the terminal device determines the location for S-SSB transmission according to the configuration information.
  • the device for determining the transmission position of the side link synchronization signal block is a network side device
  • the configuration information is carried through SIB or dedicated RRC signaling.
  • the device for determining the transmission position of the side link synchronization signal block is another terminal device
  • PSBCH payload reference signal
  • synchronization signal reference signal
  • RRC signaling synchronization signal
  • the relative positional relationship between synchronization signals in the S-SSB includes any one of the following items:
  • the phase difference between the synchronization signals in the S-SSB includes any one of the following items:
  • phase difference between S-PSS the phase difference between S-SSS, and the phase difference between S-PSS and S-SSS.
  • the location includes any of the following items:
  • the number L of S-SSB positions can be any one of the following values: 1, 2, 4, and 8.
  • the configuration information includes:
  • At least one pattern of S-SSB and/or the number of S-SSB positions are provided.
  • the configuration information further includes:
  • the time window size is any one of the following values: 5 slots, 10 slots, and 5 milliseconds.
  • the S-SSB period is greater than or equal to 20 milliseconds.
  • the terminal device configures the S-SSB period to be greater than or equal to 20 milliseconds.
  • the S-SSB period greater than or equal to 20 milliseconds is only valid for the NR band.
  • the configuration information further includes:
  • the configuration information further includes at least one of the following items:
  • the configuration information further includes: frequency domain location information of the S-SSB.
  • FIG. 11 shows a schematic diagram of the hardware structure of a terminal device provided by an embodiment of the present disclosure.
  • the terminal device 800 includes, but is not limited to: a radio frequency unit 801, a network module 802, an audio output unit 803, an input unit 804, a sensor 805, a display unit 806, a user input unit 807, an interface unit 808, a memory 809, a processor 810, and Power supply 811 and other components.
  • a radio frequency unit 801 includes, but is not limited to: a radio frequency unit 801, a network module 802, an audio output unit 803, an input unit 804, a sensor 805, a display unit 806, a user input unit 807, an interface unit 808, a memory 809, a processor 810, and Power supply 811 and other components.
  • the structure of the terminal device shown in FIG. 11 does not constitute a limitation on the terminal device, and the terminal device may include more or fewer components than shown in the figure, or a combination of certain components, or different components Layout.
  • terminal devices
  • the processor 810 is configured to obtain configuration information of the S-SSB; and determine a location for S-SSB transmission according to the configuration information.
  • the process for the processor 810 to determine the location for S-SSB transmission is basically the same as the process for determining the location for S-SSB transmission in the foregoing method embodiment. For details, refer to the description in the foregoing method embodiment. The embodiments of the present disclosure will not be repeated here.
  • the location for S-SSB transmission is determined.
  • the transmission of the S-SSB at the determined position can reduce the probability of collision between the transmitted S-SSB and the downlink signal sent by the base station.
  • the radio frequency unit 801 can be used for receiving and sending signals in the process of sending and receiving information or talking. Specifically, the downlink data from the base station is received and processed by the processor 810; in addition, Uplink data is sent to the base station.
  • the radio frequency unit 801 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.
  • the radio frequency unit 801 can also communicate with the network and other devices through a wireless communication system.
  • the terminal device provides users with wireless broadband Internet access through the network module 802, such as helping users to send and receive emails, browse web pages, and access streaming media.
  • the audio output unit 803 can convert the audio data received by the radio frequency unit 801 or the network module 802 or stored in the memory 809 into audio signals and output them as sounds. Moreover, the audio output unit 803 may also provide audio output related to a specific function performed by the terminal device 800 (for example, call signal reception sound, message reception sound, etc.).
  • the audio output unit 803 includes a speaker, a buzzer, a receiver, and the like.
  • the input unit 804 is used to receive audio or video signals.
  • the input unit 804 may include a graphics processing unit (GPU) 8041 and a microphone 8042.
  • the graphics processor 8041 is configured to monitor images of still pictures or videos obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. Data is processed.
  • the processed image frame may be displayed on the display unit 806.
  • the image frame processed by the graphics processor 8041 may be stored in the memory 809 (or other storage medium) or sent via the radio frequency unit 801 or the network module 802.
  • the microphone 8042 can receive sound, and can process such sound into audio data.
  • the processed audio data can be converted into a format that can be sent to the mobile communication base station via the radio frequency unit 801 for output in the case of a telephone call mode.
  • the terminal device 800 also includes at least one sensor 805, such as a light sensor, a motion sensor, and other sensors.
  • the light sensor includes an ambient light sensor and a proximity sensor.
  • the ambient light sensor can adjust the brightness of the display panel 8061 according to the brightness of the ambient light.
  • the proximity sensor can close the display panel 8061 and the display panel 8061 when the terminal device 800 is moved to the ear. / Or backlight.
  • the accelerometer sensor can detect the magnitude of acceleration in various directions (usually three-axis), and can detect the magnitude and direction of gravity when it is stationary, and can be used to identify the posture of the terminal device (such as horizontal and vertical screen switching, related games) , Magnetometer attitude calibration), vibration recognition related functions (such as pedometer, tap), etc.; sensor 805 can also include fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, Infrared sensors, etc., will not be repeated here.
  • the display unit 806 is used to display information input by the user or information provided to the user.
  • the display unit 806 may include a display panel 8061, and the display panel 8061 may be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), etc.
  • LCD liquid crystal display
  • OLED organic light-emitting diode
  • the user input unit 807 can be used to receive inputted number or character information, and generate key signal input related to user settings and function control of the terminal device.
  • the user input unit 807 includes a touch panel 8071 and other input devices 8072.
  • the touch panel 8071 also called a touch screen, can collect user touch operations on or near it (for example, the user uses any suitable objects or accessories such as fingers, stylus, etc.) on the touch panel 8071 or near the touch panel 8071. operating).
  • the touch panel 8071 may include two parts: a touch detection device and a touch controller.
  • the touch detection device detects the user's touch position, detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into contact coordinates, and then sends it To the processor 810, the command sent by the processor 810 is received and executed.
  • the touch panel 8071 can be implemented in multiple types such as resistive, capacitive, infrared, and surface acoustic wave.
  • the user input unit 807 may also include other input devices 8072.
  • other input devices 8072 may include, but are not limited to, a physical keyboard, function keys (such as volume control buttons, switch buttons, etc.), trackball, mouse, and joystick, which will not be repeated here.
  • the touch panel 8071 can cover the display panel 8061.
  • the touch panel 8071 detects a touch operation on or near it, it transmits it to the processor 810 to determine the type of the touch event.
  • the type of event provides corresponding visual output on the display panel 8061.
  • the touch panel 8071 and the display panel 8061 are used as two independent components to implement the input and output functions of the terminal device, in some embodiments, the touch panel 8071 and the display panel 8061 can be integrated
  • the implementation of the input and output functions of the terminal device is not specifically limited here.
  • the interface unit 808 is an interface for connecting an external device with the terminal device 800.
  • the external device may include a wired or wireless headset port, an external power source (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device with an identification module, audio input/output (input/output, I/O) port, video I/O port, headphone port, etc.
  • the interface unit 808 can be used to receive input (for example, data information, power, etc.) from an external device and transmit the received input to one or more elements in the terminal device 800 or can be used to connect to the terminal device 800 and external devices. Transfer data between devices.
  • the memory 809 can be used to store software programs and various data.
  • the memory 809 may mainly include a program storage area and a data storage area.
  • the program storage area may store an operating system, an application program required by at least one function (such as a sound playback function, an image playback function, etc.), etc.; Data (such as audio data, phone book, etc.) created by the use of mobile phones.
  • the memory 809 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other volatile solid-state storage devices.
  • the processor 810 is the control center of the terminal device. It uses various interfaces and lines to connect the various parts of the entire terminal device, runs or executes software programs and/or modules stored in the memory 809, and calls data stored in the memory 809. , Perform various functions of the terminal equipment and process data, so as to monitor the terminal equipment as a whole.
  • the processor 810 may include one or more processing units; optionally, the processor 810 may integrate an application processor and a modem processor.
  • the application processor mainly processes the operating system, user interface, and application programs, etc.
  • the adjustment processor mainly deals with wireless communication. It can be understood that the foregoing modem processor may not be integrated into the processor 810.
  • the terminal device 800 may also include a power source 811 (such as a battery) for supplying power to various components.
  • a power source 811 such as a battery
  • the power source 811 may be logically connected to the processor 810 through a power management system, so as to manage charging, discharging, and power consumption through the power management system. Management and other functions.
  • the terminal device 800 includes some functional modules not shown, which will not be repeated here.
  • an embodiment of the present disclosure further provides a terminal device, including a processor 810, a memory 809, and a computer program stored in the memory 809 and running on the processor 810.
  • the computer program is executed when the processor 810 is executed.
  • FIG. 12 shows a schematic diagram of the hardware structure of a network side device provided by an embodiment of the present disclosure.
  • the network side device includes: a memory 901, a processor 902, a transceiver 903, and a computer program stored on the memory 901 and running on the processor 902.
  • the processor 902 may be configured to send configuration information of the side link synchronization signal block S-SSB to the terminal device, so that the terminal device determines the location for S-SSB transmission according to the configuration information.
  • the terminal device When the terminal device receives the S-SSB configuration information sent by the network-side device, it determines the location for S-SSB transmission according to the configuration information, and transmits the S-SSB at the location determined by the terminal device, which can reduce the transmitted S-SSB. The probability that the SSB collides with the downlink signal sent by the base station.
  • the bus architecture may include any number of interconnected buses and bridges. Specifically, one or more processors represented by the processor 902 and various circuits of the memory represented by the memory 901 are linked together.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, power management circuits, etc., which are all known in the art, and therefore, no further descriptions are provided herein.
  • the bus interface provides the interface.
  • the transceiver 903 may be multiple elements, including a transmitter and a transceiver, and provide a unit for communicating with various other devices on a transmission medium, and for receiving and transmitting data under the control of the processor 902.
  • the processor 902 is responsible for managing the bus architecture and general processing, and the memory 901 can store data used by the processor 902 when performing operations.
  • an embodiment of the present disclosure further provides a network side device, including a processor 902, a memory 901, and a computer program stored in the memory 901 and running on the processor 902, and the computer program is executed by the processor 902
  • a network side device including a processor 902, a memory 901, and a computer program stored in the memory 901 and running on the processor 902, and the computer program is executed by the processor 902
  • the embodiment of the present disclosure also provides a computer-readable storage medium, the computer-readable storage medium stores computer program instructions; when the computer program instructions are executed by a processor, the side-link synchronization signal block transmission provided by the embodiments of the present disclosure is realized
  • the computer-readable storage medium such as read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk, etc.
  • the method of the above embodiments can be implemented by means of software plus the necessary general hardware platform. Of course, it can also be implemented by hardware, but in many cases the former is better. ⁇
  • the technical solution of the present disclosure essentially or the part that contributes to the related technology can be embodied in the form of a software product, and the computer software product is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk). ) Includes several instructions to make a terminal (which can be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) execute the method described in each embodiment of the present disclosure.
  • the disclosed device and method may be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components can be combined or It 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 they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.
  • the functional units in the various embodiments 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 function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium.
  • the computer software product is stored in a storage medium and includes several instructions to make a A computer device (which may be a personal computer, a server, or a network device, etc.) executes all or part of the steps of the methods described in the various embodiments of the present disclosure.
  • the aforementioned storage media include: U disk, mobile hard disk, ROM, RAM, magnetic disk or optical disk and other media that can store program codes.
  • the program can be stored in a computer readable storage medium. When executed, it may include the processes of the above-mentioned method embodiments.
  • the storage medium may be a magnetic disk, an optical disk, a read-only memory (Read-Only Memory, ROM), or a random access memory (Random Access Memory, RAM), etc.
  • modules, units, and sub-units can be implemented in one or more Application Specific Integrated Circuits (ASIC), Digital Signal Processor (DSP), Digital Signal Processing Device (DSP Device, DSPD) ), Programmable Logic Device (PLD), Field-Programmable Gate Array (FPGA), general-purpose processors, controllers, microcontrollers, microprocessors, used to implement Described functions in other electronic units or combinations thereof.
  • ASIC Application Specific Integrated Circuits
  • DSP Digital Signal Processor
  • DSP Device Digital Signal Processing Device
  • DSPD Digital Signal Processing Device
  • PLD Programmable Logic Device
  • FPGA Field-Programmable Gate Array
  • the technology described in the embodiments of the present disclosure can be implemented through modules (for example, 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 can be implemented in the processor or external to the processor.

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

Abstract

Les modes de réalisation de la présente invention portent sur un procédé et un dispositif de détermination de la position de transmission par bloc de signaux de synchronisation latérale (S-SSB), ainsi qu'un support. Le procédé comprend les étapes suivantes : l'acquisition d'informations de configuration d'un S-SSB ; et la détermination de la position pour la transmission du S-SSB en fonction des informations de configuration.
PCT/CN2020/080196 2019-03-29 2020-03-19 Procédé et dispositif de détermination de position de transmission de bloc de signaux de synchronisation de liaison latérale, et support WO2020199933A1 (fr)

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