WO2020259238A1 - 一种被用于无线通信的节点中的方法和装置 - Google Patents

一种被用于无线通信的节点中的方法和装置 Download PDF

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Publication number
WO2020259238A1
WO2020259238A1 PCT/CN2020/094145 CN2020094145W WO2020259238A1 WO 2020259238 A1 WO2020259238 A1 WO 2020259238A1 CN 2020094145 W CN2020094145 W CN 2020094145W WO 2020259238 A1 WO2020259238 A1 WO 2020259238A1
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period
time
node
signaling
signal
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English (en)
French (fr)
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蒋琦
张晓博
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Shanghai Langbo Communication Technology Co Ltd
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Shanghai Langbo Communication Technology Co Ltd
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Publication of WO2020259238A1 publication Critical patent/WO2020259238A1/zh
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/001—Synchronization between nodes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signalling, i.e. of overhead other than pilot signals
    • 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
    • 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
    • H04W72/20—Control channels or signalling for resource management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • 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

Definitions

  • This application relates to a transmission method and device in a wireless communication system, and in particular to a method and device for timing synchronization in a system with a relatively large transmission delay.
  • V2X Vehicle-to-Everything
  • 3GPP has also started standard formulation and research work under the NR framework.
  • 3GPP has completed the formulation of requirements for 5G V2X services and has written it into the standard TS22.886.
  • 3GPP defines 4 Use Case Groups for 5G V2X services, including: Automated Queue Driving (Vehicles Platnooning), Support for Extended Sensors (Extended Sensors), Semi/Full Auto Driving (Advanced Driving) and Remote Driving ( Remote Driving).
  • Automated Queue Driving Vehicle-to-Everything
  • the V2X sender determines the time-frequency resources for V2X transmission through sensing measurement (Sensing Measurement).
  • NTN Non-Terrestrial Networks
  • R15 the research project of Non-Terrestrial Networks (NTN, Non-Terrestrial Networks) under NR was passed at the 3GPP RAN#75 plenary meeting.
  • the R15 version started.
  • NTN network has the advantage of wide coverage.
  • NTN network can configure time-frequency resources for V2X transmission for geographic locations that are not covered by ground base stations, and then V2X terminals determine the actual situation based on the existing sensing method. Time-frequency resources for transmission.
  • the synchronization signal on the secondary link PSDCH (Physical Sidelink Discovery Channel) and PSCCH (Physical Sidelink Control Channel) are all based on the base station to
  • the downlink timing (DL Timing) of the UE side determines the transmission time, and in order to avoid interference to the UE cellular link (Cellular Link) and the uplink reception of the base station, the transmission of the PSSCH (Physical Sidelink Shared Channel, physical secondary link shared channel) is It is determined according to the uplink timing (UL Timing) of the Uu port, and is implemented by indicating the TA (Timing Advance) of the secondary link in the SCI (Sidelink Control Information, secondary link control information).
  • DL Timing Physical Sidelink Discovery Channel
  • PSCCH Physical Sidelink Control Channel
  • this application discloses a solution. It should be noted that, in the case of no conflict, the embodiments of the first node and the third node of this application and the features in the embodiments can be It is applied to the base station, and the embodiment of the second node in this application and the features in the embodiment can be applied to the terminal. At the same time, in the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other arbitrarily.
  • This application discloses a method used in a first node of wireless communication, which is characterized in that it includes:
  • the first signaling indicates a first time period set
  • the second signaling indicates a first time window
  • any one of the first time period set A time period is a time period in the first time window, the timing of each time period in the first time window refers to the receiving timing on the first node side, and the third signaling indicates the first time length;
  • a first signal is sent in the first target period according to the timing of the first target period.
  • the first reference period is the first reference period in the first period set.
  • the first signal includes first information
  • the first information indicates a first index
  • the index of the first index and the second reference period in the first time window are the same
  • the second reference period There is an overlap with the first target period in the time domain, and the first reference period and the first target period do not overlap in the time domain; the second reference period is one of the first time windows Time period.
  • the principle of the above method is: the first node sends the wireless signal on the secondary link according to the uplink timing of the base station side, and converts the TA between the base station to the first node into the first index and sends it to the
  • the terminal of the first node performing V2X communication informs the receiving terminal of the V2X signal of the position of the time slot or subframe occupied by the first signal at the transmission timing of the first node.
  • the advantage of the above method is: by transmitting all the V2X transmissions according to the uplink timing of the base station, the interference of the uplink transmission of the cellular link to V2X is avoided; and through the first index, the V2X receiving end is made aware of V2X
  • the position of the secondary link synchronization signal or PSBCH (Physical Sidelink Broadcasting Channel) at the transmitting end is used to infer the sequence numbers of the time slots or subframes where the subsequent PSCCH and PSSCH are located.
  • PSBCH Physical Sidelink Broadcasting Channel
  • another advantage of the above method is that the above method is more suitable for UE-specific configuration of the V2X time-frequency resource pool, and the V2X receiving end only needs to follow the timing of the sending end to operate, instead of all terminals referring to the base station side
  • the uplink timing of the system makes resource configuration more flexible.
  • the above method is characterized in that it includes:
  • the second signal includes second information, and the second information is used to determine a second time length; the second time length and the start time of the second reference period in the time domain and the first time A target period is related to the time interval between the start moments of the time domain.
  • the advantage of the above method is that the first information reflects the shift of the first reference period due to transmission delay at the subframe or slot level, and the second information is similar to multi-carrier symbols.
  • the smaller granularity of the level is due to the offset caused by the transmission delay, so that the third node can more accurately determine the transmission delay or TA between the second node and the first node.
  • the above method is characterized in that it includes:
  • the target signal indicates a second time period set from a second time window
  • the first target time period is a time period in the second time window
  • the first target time period is in the second time window
  • the index is the first index
  • the advantage of the above method is that the second time period set is the time domain resource used for V2X transmission determined by the first node synchronously according to the timing of the PC-5 link, thereby facilitating the third node to determine subsequent The time domain resources occupied by the SCI and PSSCH from the first node, and when to send PSFCH (Physical Sidelink Feedback Channel, physical secondary link feedback channel).
  • PSFCH Physical Sidelink Feedback Channel, physical secondary link feedback channel
  • the above method is characterized in that it includes:
  • the transmission of the third signal and the fourth signal refer to the timing in the second time period set
  • the reception of the fifth signaling refers to the timing in the second time period set
  • the The third signal includes configuration information of the fourth signal
  • the fifth signal is used to determine whether the fourth signal is received correctly.
  • the advantage of the above method is that the transmission on the secondary link of the first node is determined according to the second time period set, so that the third node is more certain of the actual time domain position of V2X transmission; and When the three nodes cannot access the NTN network, they can still communicate with the first node in V2X and will not interfere with the Uu port.
  • the above method is characterized in that it includes:
  • the start time of receiving the synchronization signal at the first node is the start time of the multi-carrier symbol occupied by the synchronization signal in the time period to which the synchronization signal belongs.
  • the essence of the above method is that the first node determines multi-carrier symbol level downlink synchronization through the synchronization signal from the base station.
  • This application discloses a method used in a second node of wireless communication, which is characterized in that it includes:
  • the first signaling indicates a first time period set
  • the second signaling indicates a first time window
  • any one of the first time period set A time period is a time period in the first time window, the timing of each time period in the first time window refers to the receiving timing on the first node side, and the third signaling indicates the first time length;
  • the recipient of the first signaling includes the first node, and the first node sends the first signal in the first target period according to the timing of the first target period, and the first target period is delayed
  • the first length of time is a first reference period
  • the first reference period is a period in a first period set
  • the first signal includes first information, the first information indicates a first index, so The first index and the second reference period have the same index in the first time window, the second reference period and the first target period overlap in the time domain, and the first reference period and the The first target period does not overlap in the time domain
  • the second reference period is a period in the first time window.
  • the above method is characterized in that it includes:
  • the start time of receiving the synchronization signal at the first node is the start time of the multi-carrier symbol occupied by the synchronization signal in the period to which the synchronization signal belongs.
  • This application discloses a method used in a third node of wireless communication, which is characterized in that it includes:
  • the first signal is received in the first target period according to the timing of the first target period, and the first reference period is the first reference period after the first target period is delayed by the first length of time, and the first reference period is one of the first period set Time period
  • the sender of the first signal is the first node; the first node determines the first time period set by receiving first signaling, and determines the first time window by receiving second signaling. Any time period in a time period set is a time period in the first time window, and the timing of each time period in the first time window refers to the receiving timing on the first node side, and the first node passes A third signaling is received to determine the first time length; the first signal includes first information, the first information indicates a first index, and the first index and the second reference period are within the first time window The index in the second reference period and the first target period overlap in the time domain, the first reference period and the first target period do not overlap in the time domain; the second reference period The time period is a time period in the first time window.
  • the above method is characterized in that it includes:
  • the second signal includes second information, and the second information is used to determine a second time length; the second time length and the start time of the second reference period in the time domain and the first time A target period is related to the time interval between the start moments of the time domain.
  • the above method is characterized in that it includes:
  • the target signal indicates a second time period set from a second time window
  • the first target time period is a time period in the second time window
  • the first target time period is in the second time window
  • the index is the first index
  • the above method is characterized in that it includes:
  • the transmission of the third signal and the fourth signal refer to the timing in the second time period set
  • the reception of the fifth signaling refers to the timing in the second time period set
  • the The third signal includes configuration information of the fourth signal
  • the fifth signal is used to determine whether the fourth signal is received correctly.
  • This application discloses a first node used for wireless communication, which is characterized by including:
  • the first receiver receives first signaling, second signaling, and third signaling, the first signaling indicates a first time period set, the second signaling indicates a first time window, and the first time period Any time period in the set is a time period in the first time window, the timing of each time period in the first time window refers to the receiving timing of the first node side, and the third signaling indicates the first time window. length of time;
  • the first transceiver sends a first signal in the first target period according to the timing of the first target period, the first target period being delayed by the first length of time followed by the first reference period, the first reference period being A period in the first period set;
  • the first signal includes first information
  • the first information indicates a first index
  • the index of the first index and the second reference period in the first time window are the same
  • the second reference period There is an overlap with the first target period in the time domain, and the first reference period and the first target period do not overlap in the time domain; the second reference period is one of the first time windows Time period.
  • This application discloses a second node used for wireless communication, which is characterized by including:
  • the first transmitter sends first signaling, second signaling, and third signaling, the first signaling indicates a first time period set, the second signaling indicates a first time window, and the first time period Any period in the set is a period in the first time window, the timing of each period in the first time window refers to the reception timing on the first node side, and the third signaling indicates the first time length ;
  • the recipient of the first signaling includes the first node, and the first node sends the first signal in the first target period according to the timing of the first target period, and the first target period is delayed
  • the first length of time is a first reference period
  • the first reference period is a period in a first period set
  • the first signal includes first information, the first information indicates a first index, so The first index and the second reference period have the same index in the first time window, the second reference period and the first target period overlap in the time domain, and the first reference period and the The first target period does not overlap in the time domain
  • the second reference period is a period in the first time window.
  • This application discloses a third node used for wireless communication, which is characterized by including:
  • the second transceiver receiving the first signal in the first target period according to the timing of the first target period, the first reference period is the first reference period after the first target period is delayed by the first length of time, and the first reference period is the first A time period in the time period set;
  • the sender of the first signal is the first node; the first node determines the first time period set by receiving first signaling, and determines the first time window by receiving second signaling. Any time period in a time period set is a time period in the first time window, and the timing of each time period in the first time window refers to the receiving timing on the first node side, and the first node passes A third signaling is received to determine the first time length; the first signal includes first information, the first information indicates a first index, and the first index and the second reference period are within the first time window The index in the second reference period and the first target period overlap in the time domain, the first reference period and the first target period do not overlap in the time domain; the second reference period The time period is a time period in the first time window.
  • this application has the following advantages:
  • the V2X receiving end is informed of the secondary link synchronization signal or the V2X transmitting end
  • the location of the PSBCH is used to infer the sequence number of the time slot or subframe where the subsequent PSCCH and PSSCH are located;
  • the above method is more suitable for UE-specific configuration of the V2X time-frequency resource pool, and the V2X receiving end only needs to follow the timing of the sending end to operate, without requiring all terminals to refer to the uplink timing of the base station side, thereby making the resource configuration more flexible;
  • the first information reflects the shift of the first reference period due to transmission delay at the subframe or slot level, and the second information is similar to the multi-carrier symbol level because of the smaller granularity of transmission The offset caused by the delay, so that the third node can more accurately determine the transmission delay or TA between the second node and the first node;
  • the second time period set is the time domain resource used for V2X transmission determined by the first node according to its own timing synchronization, thereby facilitating the third node to determine the time domain occupied by the subsequent SCI and PSSCH from the first node Resources, and when to send PSFCH.
  • Fig. 1 shows a processing flowchart of a first node according to an embodiment of the present application
  • Figure 2 shows a schematic diagram of a network architecture according to an embodiment of the present application
  • Fig. 3 shows a schematic diagram of an embodiment of a wireless protocol architecture of a user plane and a control plane according to an embodiment of the present application
  • Fig. 4 shows a schematic diagram of a first communication device and a second communication device according to an embodiment of the present application
  • Figure 5 shows a flowchart of the first signaling according to an embodiment of the present application
  • Fig. 6 shows a first time length according to an embodiment of the present application
  • Fig. 7 shows a schematic diagram of a first time period set and a second time period set according to an embodiment of the present application
  • Fig. 8 shows a schematic diagram of a first target period and a second reference period according to an embodiment of the present application
  • Fig. 9 shows a schematic diagram of a first target period and a second reference period according to another embodiment of the present application.
  • Fig. 10 shows a schematic diagram of an application scenario according to an embodiment of the present application.
  • Fig. 11 shows a structural block diagram used in the first node according to an embodiment of the present application.
  • Fig. 12 shows a structural block diagram used in a second node according to an embodiment of the present application
  • Fig. 13 shows a structural block diagram used in the third node according to an embodiment of the present application.
  • Embodiment 1 illustrates a processing flowchart of the first node, as shown in FIG. 1.
  • each box represents a step.
  • the first node in this application receives first signaling, second signaling, and third signaling in step 101, where the first signaling indicates a first time period set, and the second signaling Indicates the first time window, any time period in the first time period set is a time period in the first time window, and the timing of each time period in the first time window refers to the reception on the first node side Timing, the third signaling indicates the first time length; in step 102, the first signal is sent in the first target time period according to the timing of the first target time period, and the first target time period is delayed after the first time length Is the first reference period, and the first reference period is a period in the first period set.
  • the first signal includes first information, the first information indicates a first index, the first index and the second reference period have the same index in the first time window, and the first The second reference period and the first target period overlap in the time domain, and the first reference period and the first target period do not overlap in the time domain; the second reference period is the first time window A period in.
  • the meaning that the second reference period and the first target period overlap in the time domain includes: there is at least one multi-carrier symbol simultaneously belonging to the time domain resources occupied by the second reference period and The time domain resources occupied by the first target period.
  • the meaning that the second reference period and the first target period overlap in the time domain includes: the start time of the second reference period in the time domain is not later than the first target period The start time in the time domain, and the end time of the second reference period in the time domain is later than the start time of the first target period in the time domain.
  • the meaning that the second reference period and the first target period overlap in the time domain includes: the start time of the second reference period in the time domain is later than that of the first target period The start time of the time domain, and the cut-off time of the first target period in the time domain is no later than the cut-off time of the second reference period in the time domain.
  • the meaning that the first reference period and the first target period do not overlap in the time domain includes: there is no multi-carrier symbol that also belongs to the time domain resources occupied by the first reference period and the time domain resources occupied by the first reference period.
  • the time domain resources occupied by the first target period includes: there is no multi-carrier symbol that also belongs to the time domain resources occupied by the first reference period and the time domain resources occupied by the first reference period. The time domain resources occupied by the first target period.
  • the meaning that the first reference period and the first target period do not overlap in the time domain includes: the start time and the end time of the second reference period in the time domain are not later than the The first target period is in the start time of the time domain, or the start time and the end time of the second reference period in the time domain are both later than the start time of the first target period in the time domain.
  • the sender of the first signaling is the second node.
  • the second node is a base station in NTN.
  • the second node is a non-terrestrial base station.
  • the second node is GEO (Geostationary Earth Orbiting, synchronous earth orbit) satellite, MEO (Medium Earth Orbiting, medium earth orbit) satellite, LEO (Low Earth Orbit, low earth orbit) satellite, HEO (Highly Earth) One of Elliptical Orbiting satellites or Airborne Platform.
  • GEO Globalstar Earth Orbiting, synchronous earth orbit
  • MEO Medium Earth Orbiting, medium earth orbit
  • LEO Low Earth Orbit, low earth orbit
  • HEO Highly Earth
  • the first time period set includes K1 time periods, and the K1 is a positive integer.
  • the K1 time periods are respectively K1 time slots.
  • the K1 time periods are respectively K1 sub-frames.
  • the K1 time periods are respectively K1 radio frames.
  • the K1 time periods are respectively K1 mini-slots.
  • the first time period set is a time domain resource reserved for non-cellular link transmission according to the timing of the second node.
  • the non-cellular link includes a secondary link.
  • the non-cellular link is used for V2X service transmission.
  • the second signaling is sent on a PBCH (Physical Broadcasting Channel).
  • PBCH Physical Broadcasting Channel
  • the first signal is sent on the PSBCH.
  • the first signal is sent on the PSDCH.
  • the first information is sent on SL-BCH (Sidelink Broadcasting Channel, secondary link broadcast channel).
  • SL-BCH Seglink Broadcasting Channel, secondary link broadcast channel
  • the first information is sent on MasterInformationBlock-SL.
  • the first index is a non-negative integer.
  • the second signaling indicates the position in the first time window of the time period occupied by the second signaling, and the time period occupied by the second signaling is the first time window. A period in the time window.
  • the second signaling occupies a second target period; the start time of receiving the second signaling at the first node is the start time of the second target period; the second The cut-off time of receiving the signaling at the first node is the cut-off time of the second target period.
  • the second signaling occupies part of the multi-carrier symbols in the second target time period; the start time of receiving the second signaling at the first node is all the symbols in the second target time period.
  • the start time of the part of the multi-carrier symbol; the end time of the reception of the second signaling at the first node is the end time of the part of the multi-carrier symbol in the second target time period.
  • the second node in this application sends the first signaling, second signaling, and third signaling.
  • the first time length is equal to the transmission delay (Transmission Delay) from the first node to the second node.
  • the first time length is related to the quantized value of the transmission delay from the first node to the second node.
  • the first time length is equal to 2 times the quantized value of the transmission delay from the first node to the second node.
  • the unit of the first time length is a time slot (Slot).
  • the unit of the first time length is milliseconds.
  • the unit of the first time length is a subframe (Subframe).
  • the unit of the first time length is the time length occupied by one multi-carrier symbol.
  • the unit of the first time length is microseconds.
  • the unit of the first time length is 1/30720 milliseconds.
  • the unit of the first time length is 1/X milliseconds, and the X is a positive integer multiple of 30720.
  • the first time length increases as the distance between the first node and the second node increases.
  • the first time length is related to the height of the second node.
  • the first time length is related to the inclination angle between the second node and the first node.
  • the first time length is a timing advance (Timing Advance) of uplink transmission from the first node to the second node.
  • the second reference period is an earlier period in the first time window that overlaps with the first target period.
  • the second reference period is a period in the first time window that has a longer overlap with the first target period.
  • the second reference time period when two time periods in the first time window overlap with the first target time period, the second reference time period is the earlier one of the two time periods; When two time periods in the first time window and the first target time period overlap at different times, the second reference time period is a time period with a longer overlap time in the two time periods.
  • the timing of a time period includes the start time of a time period and the end time of a time period.
  • the timing of a time period includes the start time of each multi-carrier symbol and the end time of each multi-carrier symbol in a time period.
  • the length of each period in the first time window is the same.
  • each period in the first time window includes 14 multi-carrier symbols.
  • the duration of each period in the first time window is 1 millisecond.
  • the duration of each period in the first time window is 0.5 milliseconds.
  • each period in the first time window is a subframe.
  • each period in the first time window is a time slot.
  • the first signaling, the second signaling, and the third signaling include SIB (System Information Block, system information block), MIB (Master Information Block, master information block), and TA, respectively. (Timing Advance) command.
  • SIB System Information Block, system information block
  • MIB Master Information Block, master information block
  • TA Timing Advance
  • the first signaling, the second signaling, and the third signaling each include higher layer signaling.
  • the first signaling and the second signaling are broadcast, and the third signaling is unicast.
  • the second signaling is broadcast, and the first signaling and the third signaling are unicast.
  • the first signaling, the second signaling, and the third signaling respectively include RRC (Radio Resource Control, radio resource control) layer signaling, RRC layer signaling, and MAC (Media Access). Control (Media Access Control) layer signaling.
  • RRC Radio Resource Control
  • RRC Radio Resource Control
  • MAC Media Access
  • Control Media Access Control
  • the multi-carrier symbol in this application is an OFDM (Orthogonal Frequency Division Multiplexing, Orthogonal Frequency Division Multiplexing) symbol.
  • the multi-carrier symbol in this application is SC-FDMA (Single-Carrier Frequency Division Multiple Access, Single-Carrier Frequency Division Multiple Access) symbol.
  • the multi-carrier symbol in this application is a FBMC (Filter Bank Multi Carrier, filter bank multi-carrier) symbol.
  • FBMC Filter Bank Multi Carrier, filter bank multi-carrier
  • the multi-carrier symbol in this application is an OFDM symbol including a CP (Cyclic Prefix).
  • the multi-carrier symbol in this application is a DFT-s-OFDM (Discrete Fourier Transform Spreading Orthogonal Frequency Division Multiplexing) symbol including CP.
  • DFT-s-OFDM Discrete Fourier Transform Spreading Orthogonal Frequency Division Multiplexing
  • the first time period set is a time domain resource used for V2X transmission configured by the second node according to the second node's own clock.
  • the first time period set is indicated by a bitmap.
  • the first time window is determined according to the downlink timing received by the first node.
  • the first time window includes a positive integer number of time periods, and the positive integer number of time periods is determined according to the downlink timing received by the first node.
  • the second node does not receive the uplink transmission from the first node in the first time period set.
  • the second node does not receive uplink transmissions from terminals served by the second node in the first time period set.
  • the first signal is transmitted on the secondary link.
  • the first index is a radio frame number.
  • the first index is a subframe number.
  • the first index is a slot number.
  • the index of the second reference period in the first time window is a radio frame number.
  • the index of the second reference period in the first time window is a subframe number.
  • the index of the second reference period in the first time window is a slot number.
  • the first signal is a wireless signal.
  • the first signal is a baseband channel.
  • Embodiment 2 illustrates a schematic diagram of a network architecture, as shown in FIG. 2.
  • FIG. 2 illustrates a diagram of the network architecture 200 of 5G NR, LTE (Long-Term Evolution) and LTE-A (Long-Term Evolution Advanced) systems.
  • the 5G NR or LTE network architecture 200 may be referred to as EPS (Evolved Packet System, evolved packet system) 200 with some other suitable terminology.
  • EPS 200 may include one or more UEs (User Equipment) 201, and include a UE 241 that performs secondary link communication with UE 201, NG-RAN (Next Generation Radio Access Network) 202, EPC (Evolved Packet Core, Evolved Packet Core)/5G-CN (5G-Core Network, 5G Core Network) 210, HSS (Home Subscriber Server) 220 and Internet service 230.
  • UEs User Equipment
  • NG-RAN Next Generation Radio Access Network
  • EPC Evolved Packet Core, Evolved Packet Core
  • 5G-Core Network 5G-Core Network
  • HSS
  • EPS can be interconnected with other access networks, but these entities/interfaces are not shown for simplicity. As shown in the figure, EPS provides packet switching services. However, those skilled in the art will easily understand that various concepts presented throughout this application can be extended to networks that provide circuit switching services or other cellular networks.
  • NG-RAN includes NR Node B (gNB) 203 and other gNB 204.
  • gNB203 provides user and control plane protocol termination towards UE201.
  • the gNB203 can be connected to other gNB204 via an Xn interface (for example, backhaul).
  • the gNB203 may also be called a base station, base transceiver station, radio base station, radio transceiver, transceiver function, basic service set (BSS), extended service set (ESS), TRP (transmit and receive node) or some other suitable terminology.
  • gNB203 provides UE201 with an access point to EPC/5G-CN 210.
  • Examples of UE201 include cellular phones, smart phones, Session Initiation Protocol (SIP) phones, laptop computers, personal digital assistants (PDAs), satellite radios, non-terrestrial base station communications, satellite mobile communications, global positioning systems, multimedia devices , Video devices, digital audio players (for example, MP3 players), cameras, game consoles, drones, aircraft, narrowband IoT devices, machine-type communication devices, land vehicles, automobiles, wearable devices, or any Other similar functional devices.
  • SIP Session Initiation Protocol
  • PDAs personal digital assistants
  • satellite radios non-terrestrial base station communications
  • satellite mobile communications global positioning systems
  • multimedia devices Video devices
  • digital audio players for example, MP3 players
  • cameras game consoles
  • drones aircraft
  • narrowband IoT devices machine-type communication devices
  • machine-type communication devices land vehicles, automobiles, wearable devices, or any Other similar functional devices.
  • UE201 can also refer to UE201 as a mobile station, subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, Mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client or some other suitable term.
  • the gNB203 is connected to EPC/5G-CN 210 through the S1/NG interface.
  • EPC/5G-CN 210 includes MME (Mobility Management Entity)/AMF (Authentication Management Field)/UPF (User Plane Function, user plane function) 211, other MME/AMF/UPF214, S-GW (Service Gateway, Serving Gateway) 212 and P-GW (Packet Date Network Gateway, Packet Data Network Gateway) 213.
  • MME/AMF/UPF211 is a control node that processes the signaling between UE201 and EPC/5G-CN 210.
  • MME/AMF/UPF211 provides bearer and connection management. All user IP (Internet Protocol, Internet Protocol) packets are transmitted through S-GW212, and S-GW212 itself is connected to P-GW213.
  • the P-GW213 provides UE IP address allocation and other functions.
  • the P-GW213 is connected to the Internet service 230.
  • the Internet service 230 includes the corresponding Internet protocol service of the operator, which may specifically include the Internet, Intranet, IMS (IP Multimedia Subsystem, IP Multimedia Subsystem), and packet switching streaming service.
  • the UE201 corresponds to the first node in this application.
  • the gNB203 corresponds to the second node in this application.
  • the UE 241 corresponds to the third node in this application.
  • the air interface between the UE201 and the gNB203 is a Uu interface.
  • the air interface between the UE201 and the UE241 is a PC-5 interface.
  • the wireless link between the UE201 and the gNB203 is a cellular link.
  • the radio link between the UE201 and the UE241 is a secondary link.
  • the first node in this application is a terminal covered by the gNB203.
  • the third node in this application is a terminal outside the coverage of the gNB203.
  • the third node in this application is a terminal covered by the gNB203.
  • the first node and the third node belong to a V2X pair (Pair).
  • the first node is a car.
  • the first node is a vehicle.
  • the second node is a base station.
  • the third node is a vehicle.
  • the third node is a car.
  • the third node is an RSU (Road Side Unit).
  • the third node is a group header (Group Header) of a terminal group.
  • Embodiment 3 shows a schematic diagram of an embodiment of a wireless protocol architecture of a user plane and a control plane according to the present application, as shown in FIG. 3.
  • Figure 3 is a schematic diagram illustrating an embodiment of the radio protocol architecture for the user plane 350 and the control plane 300.
  • Figure 3 shows three layers for the first communication node device (UE, gNB or RSU in V2X) and the second Communication node equipment (gNB, UE or RSU in V2X), or the radio protocol architecture of the control plane 300 between two UEs: layer 1, layer 2, and layer 3.
  • Layer 1 (L1 layer) is the lowest layer and implements various PHY (physical layer) signal processing functions.
  • the L1 layer will be referred to as PHY301 herein.
  • Layer 2 (L2 layer) 305 is above PHY301 and is responsible for the link between the first communication node device and the second communication node device and the two UEs through PHY301.
  • L2 layer 305 includes MAC (Medium Access Control) sublayer 302, RLC (Radio Link Control, radio link layer control protocol) sublayer 303, and PDCP (Packet Data Convergence Protocol, packet data convergence protocol) sublayer 304. These sublayers terminate at the second communication node device.
  • the PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels.
  • the PDCP sublayer 304 also provides security by encrypting data packets, as well as providing support for handover between the second communication node devices and the first communication node device.
  • the RLC sublayer 303 provides segmentation and reassembly of upper layer data packets, retransmission of lost data packets, and reordering of data packets to compensate for out-of-order reception due to HARQ.
  • the MAC sublayer 302 provides multiplexing between logical and transport channels.
  • the MAC sublayer 302 is also responsible for allocating various radio resources (for example, resource blocks) in a cell among the first communication node devices.
  • the MAC sublayer 302 is also responsible for HARQ operations.
  • the RRC (Radio Resource Control, Radio Resource Control) sublayer 306 in layer 3 (L3 layer) of the control plane 300 is responsible for obtaining radio resources (ie, radio bearers) and using the difference between the second communication node device and the first communication node device.
  • the radio protocol architecture of the user plane 350 includes layer 1 (L1 layer) and layer 2 (L2 layer).
  • the radio protocol architecture for the first communication node device and the second communication node device in the user plane 350 is for the physical layer 351, L2
  • the PDCP sublayer 354 in the layer 355, the RLC sublayer 353 in the L2 layer 355, and the MAC sublayer 352 in the L2 layer 355 are basically the same as the corresponding layers and sublayers in the control plane 300, but the PDCP sublayer 354 also Provides header compression for upper layer data packets to reduce radio transmission overhead.
  • the L2 layer 355 in the user plane 350 also includes the SDAP (Service Data Adaptation Protocol, Service Data Adaptation Protocol) sublayer 356.
  • the SDAP sublayer 356 is responsible for the mapping between the QoS flow and the Data Radio Bearer (DRB). To support business diversity.
  • the first communication node device may have several upper layers above the L2 layer 355, including a network layer (for example, an IP layer) terminating at the P-GW on the network side and another terminating at the connection.
  • Application layer at one end for example, remote UE, server, etc.).
  • the wireless protocol architecture in FIG. 3 is applicable to the first node in this application.
  • the wireless protocol architecture in FIG. 3 is applicable to the second node in this application.
  • the wireless protocol architecture in FIG. 3 is applicable to the third node in this application.
  • the first signaling is generated in the RRC306.
  • the second signaling is generated in the RRC306.
  • the second signaling is generated in the MAC352 or the MAC302.
  • the third signaling is generated in the MAC352 or the MAC302.
  • the third signaling is generated in the RRC306.
  • the first signal is generated in the MAC352 or the MAC302.
  • the first signal is generated in the RRC306.
  • the second signal is generated in the MAC352 or the MAC302.
  • the second signal is generated in the RRC306.
  • the target signal is generated in the MAC352 or the MAC302.
  • the target signal is generated in the RRC306.
  • the third signal is generated in the PHY301 or the PHY351.
  • the fourth signal is generated in the PHY301 or the PHY351.
  • the fourth signal is generated in MAC352 or MAC302.
  • the fifth signaling is generated in PHY301 or PHY351.
  • the fifth signaling is generated in MAC352 or MAC302.
  • the synchronization signal is generated in the PHY301 or the PHY351.
  • Embodiment 4 shows a schematic diagram of the first communication device and the second communication device according to the present application, as shown in FIG. 4.
  • 4 is a block diagram of a first communication device 450 and a second communication device 410 communicating with each other in an access network.
  • the first communication device 450 includes a controller/processor 459, a memory 460, a data source 467, a transmitting processor 468, a receiving processor 456, a multi-antenna transmitting processor 457, a multi-antenna receiving processor 458, and a transmitter/receiver 454 And antenna 452.
  • the second communication device 410 includes a controller/processor 475, a memory 476, a receiving processor 470, a transmitting processor 416, a multi-antenna receiving processor 472, a multi-antenna transmitting processor 471, a transmitter/receiver 418, and an antenna 420.
  • the upper layer data packet from the core network is provided to the controller/processor 475.
  • the controller/processor 475 implements the functionality of the L2 layer.
  • the controller/processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logic and transport channels Multiplexing, and allocation of radio resources to the first communication device 450 based on various priority metrics.
  • the controller/processor 475 is also responsible for retransmission of lost packets and signaling to the first communication device 450.
  • the transmission processor 416 and the multi-antenna transmission processor 471 implement various signal processing functions for the L1 layer (ie, physical layer).
  • the transmit processor 416 implements encoding and interleaving to facilitate forward error correction (FEC) at the second communication device 410, and based on various modulation schemes (e.g., binary phase shift keying (BPSK), quadrature phase shift Keying (QPSK), M phase shift keying (M-PSK), M quadrature amplitude modulation (M-QAM)) signal cluster mapping.
  • BPSK binary phase shift keying
  • QPSK quadrature phase shift Keying
  • M-PSK M phase shift keying
  • M-QAM M quadrature amplitude modulation
  • the multi-antenna transmission processor 471 performs digital spatial precoding on the coded and modulated symbols, including codebook-based precoding and non-codebook-based precoding, and beamforming processing to generate one or more spatial streams.
  • the transmit processor 416 maps each spatial stream to subcarriers, multiplexes it with a reference signal (e.g., pilot) in the time and/or frequency domain, and then uses an inverse fast Fourier transform (IFFT) to generate The physical channel that carries the multi-carrier symbol stream in the time domain.
  • IFFT inverse fast Fourier transform
  • the multi-antenna transmission processor 471 performs transmission simulation precoding/beamforming operations on the time-domain multi-carrier symbol stream.
  • Each transmitter 418 converts the baseband multi-carrier symbol stream provided by the multi-antenna transmission processor 471 into a radio frequency stream, and then provides it to a different antenna 420.
  • each receiver 454 receives a signal through its corresponding antenna 452.
  • Each receiver 454 recovers the information modulated on the radio frequency carrier, and converts the radio frequency stream into a baseband multi-carrier symbol stream and provides it to the receiving processor 456.
  • the receiving processor 456 and the multi-antenna receiving processor 458 implement various signal processing functions of the L1 layer.
  • the multi-antenna receiving processor 458 performs reception analog precoding/beamforming operations on the baseband multi-carrier symbol stream from the receiver 454.
  • the receiving processor 456 uses a Fast Fourier Transform (FFT) to convert the baseband multi-carrier symbol stream after receiving the analog precoding/beamforming operation from the time domain to the frequency domain.
  • FFT Fast Fourier Transform
  • the reference signal will be used for channel estimation.
  • the data signal is recovered after the multi-antenna detection in the multi-antenna receiving processor 458.
  • the first communication device 450 is any spatial flow of the destination. The symbols on each spatial stream are demodulated and recovered in the receiving processor 456, and soft decisions are generated.
  • the receiving processor 456 then decodes and deinterleaves the soft decision to recover the upper layer data and control signals transmitted by the second communication device 410 on the physical channel.
  • the upper layer data and control signals are then provided to the controller/processor 459.
  • the controller/processor 459 implements the functions of the L2 layer.
  • the controller/processor 459 may be associated with a memory 460 that stores program codes and data.
  • the memory 460 may be referred to as a computer-readable medium.
  • the controller/processor 459 provides demultiplexing between transport and logical channels, packet reassembly, decryption, header decompression , Control signal processing to recover upper layer data packets from the core network.
  • the upper layer data packets are then provided to all protocol layers above the L2 layer.
  • Various control signals can also be provided to L3 for L3 processing.
  • a data source 467 is used to provide upper layer data packets to the controller/processor 459.
  • the data source 467 represents all protocol layers above the L2 layer.
  • the controller/processor 459 implements the header based on the radio resource allocation Compression, encryption, packet segmentation and reordering, and multiplexing between logic and transport channels, implement L2 layer functions for user plane and control plane.
  • the controller/processor 459 is also responsible for retransmission of lost packets and signaling to the second communication device 410.
  • the transmission processor 468 performs modulation mapping and channel coding processing, and the multi-antenna transmission processor 457 performs digital multi-antenna spatial precoding, including codebook-based precoding and non-codebook-based precoding, and beamforming processing, followed by transmission
  • the processor 468 modulates the generated spatial stream into a multi-carrier/single-carrier symbol stream, which is subjected to an analog precoding/beamforming operation in the multi-antenna transmission processor 457 and then provided to different antennas 452 via the transmitter 454.
  • Each transmitter 454 first converts the baseband symbol stream provided by the multi-antenna transmission processor 457 into a radio frequency symbol stream, and then provides it to the antenna 452.
  • the function at the second communication device 410 is similar to that in the transmission from the second communication device 410 to the first communication device 450.
  • Each receiver 418 receives radio frequency signals through its corresponding antenna 420, converts the received radio frequency signals into baseband signals, and provides the baseband signals to the multi-antenna receiving processor 472 and the receiving processor 470.
  • the receiving processor 470 and the multi-antenna receiving processor 472 jointly implement the functions of the L1 layer.
  • the controller/processor 475 implements L2 layer functions.
  • the controller/processor 475 may be associated with a memory 476 that stores program codes and data.
  • the memory 476 may be referred to as a computer-readable medium.
  • the controller/processor 475 provides demultiplexing between transport and logical channels, packet reassembly, decryption, header decompression , Control signal processing to recover upper layer data packets from UE450.
  • the upper layer data packet from the controller/processor 475 may be provided to the core network.
  • the first communication device 450 includes: at least one processor and at least one memory, the at least one memory includes computer program code; the at least one memory and the computer program code are configured to The at least one processor is used together, the first communication device 450 means at least: receiving first signaling, second signaling, and third signaling, the first signaling indicates a first time period set, and the second The signaling indicates a first time window, any time period in the first time period set is a time period in the first time window, and the timing of each time period in the first time window refers to the first node side
  • the third signaling indicates the first time length; and the first signal is sent in the first target time period according to the timing of the first target time period, and the first target time period is delayed by the first time length.
  • the first reference period is a period in the first period set;
  • the first signal includes first information, the first information indicates a first index, the first index and the second reference
  • the indexes of the time periods in the first time window are the same, the second reference time period and the first target time period overlap in the time domain, and the first reference time period and the first target time period are not in the time domain.
  • Overlap; the second reference period is a period in the first time window.
  • the first communication device 450 includes: a memory storing a computer-readable instruction program, the computer-readable instruction program generates actions when executed by at least one processor, and the actions include: receiving the first One signaling, second signaling, and third signaling, the first signaling indicates a first time period set, the second signaling indicates a first time window, and any time period in the first time period set is For one period in the first time window, the timing of each period in the first time window refers to the receiving timing on the first node side, the third signaling indicates the first time length; and according to the first Timing of the target period: Send a first signal in the first target period. After the first target period is delayed by a first length of time, the first reference period is the first reference period.
  • the first reference period is a period in the first period set
  • the first signal includes first information, the first information indicates a first index, the index of the first index and the second reference period in the first time window are the same, and the second reference period is the same as
  • the first target period has an overlap in the time domain, and the first reference period and the first target period do not overlap in the time domain; the second reference period is a period in the first time window .
  • the second communication device 410 device includes: at least one processor and at least one memory, the at least one memory includes computer program code; the at least one memory and the computer program code are configured to Use at least one processor together.
  • the second communication device 410 means at least: sending first signaling, second signaling, and third signaling, the first signaling indicates a first time period set, and the second signaling indicates a first time window, Any time period in the first time period set is a time period in the first time window, and the timing of each time period in the first time window refers to the receiving timing on the first node side, and the third signaling Indicates the first time length; the recipient of the first signaling includes the first node, and the first node sends a first signal in the first target period according to the timing of the first target period, and the After a target period is delayed by the first length of time, the first reference period is the first reference period, and the first reference period is a period in the first period set; the first signal includes first information, and the first information indicates the first An index
  • the second communication device 410 includes: a memory storing a computer-readable instruction program, the computer-readable instruction program generates an action when executed by at least one processor, and the action includes: sending First signaling, second signaling, and third signaling, the first signaling indicates a first time period set, the second signaling indicates a first time window, any time period in the first time period set Is a period in the first time window, the timing of each period in the first time window refers to the receiving timing on the first node side, and the third signaling indicates the first time length; the first message The recipient of the command includes the first node, and the first node sends a first signal in the first target period according to the timing of the first target period, the first target period being delayed by the first length of time Is the first reference period, and the first reference period is a period in the first period set; the first signal includes first information, the first information indicates the first index, the first index and the second The index of the reference period in the first time window is the same, the second reference period and the
  • the second communication device 410 device includes: at least one processor and at least one memory, the at least one memory includes computer program code; the at least one memory and the computer program code are configured to Use at least one processor together.
  • the second communication device 410 device at least: receives the first signal in the first target period according to the timing of the first target period, the first target period is delayed by the first length of time after the first reference period, the first The reference period is a period in the first period set; the sender of the first signal is the first node; the first node determines the first period set by receiving the first signaling, and receives the second signal.
  • any time period in the first time period set is a time period in the first time window, and the timing of each time period in the first time window refers to the first node side Receiving timing, and the first node determines the first time length by receiving third signaling;
  • the first signal includes first information, the first information indicates a first index, and the first index and the second Two reference periods have the same index in the first time window, the second reference period and the first target period overlap in the time domain, and the first reference period and the first target period are in time The domains do not overlap;
  • the second reference period is a period in the first time window.
  • the second communication device 410 device includes: a memory storing a computer-readable instruction program, the computer-readable instruction program generates actions when executed by at least one processor, and the actions include: The timing of the first target period receives the first signal in the first target period, the first target period being delayed by the first length of time is the first reference period, and the first reference period is a period in the first period set
  • the sender of the first signal is the first node; the first node determines the first time period set by receiving first signaling, and determines the first time window by receiving second signaling, the first Any time period in the time period set is a time period in the first time window.
  • the timing of each time period in the first time window refers to the receiving timing on the first node side, and the first node receives
  • the third signaling determines the first time length; the first signal includes first information, the first information indicates a first index, and the first index and the second reference period are in the first time window
  • the index of the second reference period and the first target period overlap in the time domain, and the first reference period and the first target period do not overlap in the time domain;
  • the second reference period Is a period in the first time window.
  • the first communication device 450 corresponds to the first node in this application.
  • the second communication device 410 corresponds to the second node in this application.
  • the second communication device 410 corresponds to the third node in this application.
  • the first communication device 450 is a UE.
  • the second communication device 410 is a base station.
  • the second communication device 410 is a UE.
  • At least one of the antenna 452, the receiver 454, the multi-antenna receiving processor 458, the receiving processor 456, and the controller/processor 459 is used to receive the first One signaling, second signaling, and third signaling; the antenna 420, the transmitter 418, the multi-antenna transmission processor 471, the transmission processor 416, and the controller/processor 475 At least one of is used to send the first signaling, the second signaling, and the third signaling.
  • At least one of the antenna 452, the transmitter 454, the multi-antenna transmission processor 457, the transmission processor 468, and the controller/processor 459 is used according to the first
  • the timing of the target period is to send the first signal in the first target period; the antenna 420, the receiver 418, the multi-antenna receiving processor 472, the receiving processor 470, the controller/processing
  • At least one of the converters 475 is used to receive the first signal in the first target period according to the timing of the first target period.
  • At least one of the antenna 452, the transmitter 454, the multi-antenna transmission processor 457, the transmission processor 468, and the controller/processor 459 is used to transmit the second Signal; at least one of the antenna 420, the receiver 418, the multi-antenna receiving processor 472, the receiving processor 470, and the controller/processor 475 is used to receive the second signal.
  • At least one of the antenna 452, the transmitter 454, the multi-antenna transmission processor 457, the transmission processor 468, and the controller/processor 459 is used to transmit the target signal
  • At least one of the antenna 420, the receiver 418, the multi-antenna receiving processor 472, the receiving processor 470, and the controller/processor 475 is used to receive the target signal.
  • At least one of the antenna 452, the transmitter 454, the multi-antenna transmission processor 457, the transmission processor 468, and the controller/processor 459 is used to transmit the third Signal and fourth signal; at least one of the antenna 420, the receiver 418, the multi-antenna receiving processor 472, the receiving processor 470, and the controller/processor 475 is used for receiving The third signal and the fourth signal.
  • At least one of the antenna 452, the receiver 454, the multi-antenna receiving processor 458, the receiving processor 456, and the controller/processor 459 is used to receive the first Five signaling; the antenna 420, the transmitter 418, the multi-antenna transmission processor 471, the transmission processor 416, at least one of the controller/processor 475 is used to transmit the fifth Signaling.
  • At least one of the antenna 452, the receiver 454, the multi-antenna receiving processor 458, the receiving processor 456, and the controller/processor 459 is used to receive synchronization Signaling; the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, at least one of the controller/processor 475 is used to send synchronization signaling .
  • Embodiment 5 illustrates a flow chart of the first signaling, as shown in FIG. 5.
  • the first node U1 and the second node N2 communicate through the Uu link, and the first node U1 and the third node U3 communicate through the secondary link; the steps marked in the box F0 in the figure Is optional.
  • the synchronization signal For the first node U1, received in step S10, the synchronization signal; receiving a first signaling in step S11, the second and third signaling signaling; in step S12 based on the timing of the first period of the first target in the The first signal is sent in the target period; the second signal is sent in step S13; the target signal is sent in step S14; the third signal and the fourth signal are sent in step S15; the fifth signal is received in step S16.
  • step S20 transmits a synchronization signal; a first signaling transmitted in step S21, the second and the third signaling signaling.
  • step 30 For the third node U3, received at step 30 based on the timing period of the first object in the first period in a first target signal; receiving a second signal in step S31; receives the target signal in step S32; step S33 The third signal and the fourth signal are received in, and the fifth signaling is sent in step S34.
  • the first signaling indicates a first time period set
  • the second signaling indicates a first time window
  • any time period in the first time window set is one of the first time windows Time period
  • the timing of each time period in the first time window refers to the receiving timing of the first node side
  • the third signaling indicates a first time length
  • the first reference period the first reference period is a period in the first period set
  • the first signal includes first information, the first information indicates a first index, the first index and the second reference
  • the indexes of the time periods in the first time window are the same, the second reference time period and the first target time period overlap in the time domain, and the first reference time period and the first target time period are not in the time domain.
  • the second reference period is a period in the first time window;
  • the second signal includes second information, and the second information is used to determine a second time length;
  • the second time The length is related to the time interval between the start moment of the second reference period in the time domain and the start moment of the first target period in the time domain;
  • the target signal indicates the second period from the second time window Set, the first target period is a period in the second time window, the index of the first target period in the second time window is the first index;
  • the third signal and the The transmission of the fourth signal refers to the timing in the second time period set, the reception of the fifth signaling refers to the timing in the second time period set, and the third signal includes the fourth signal
  • the fifth signal is used to determine whether the fourth signal is correctly received;
  • the synchronization signal is the time period to which the synchronization signal belongs at the start time of the synchronization signal at the first node The start time of the multi-carrier symbol occupied by the signal.
  • the unit of the second time length is milliseconds.
  • the unit of the second time length is the time length occupied by one multi-carrier symbol.
  • the unit of the second time length is microseconds.
  • the unit of the second time length is 1/30720 milliseconds.
  • the unit of the second time length is 1/Y millisecond, and the Y is a positive integer multiple of 30720.
  • the second time length is equal to the time interval between the start moment of the second reference period in the time domain and the start moment of the first target period in the time domain.
  • the second time length is equal to a positive value to indicate an advance, or the second time length is equal to a negative value to indicate a delay.
  • the second time length is equal to a positive value to indicate a delay, or the second time length is equal to a negative value to indicate an advance.
  • the second signal is transmitted on the secondary link.
  • the target signal is transmitted on the secondary link.
  • the second signal is sent on the PSBCH.
  • the second signal is sent on the PSDCH.
  • the second information is sent on the SL-BCH.
  • the second information is sent on MasterInformationBlock-SL.
  • the second time window is a timing on the secondary link determined according to the sending timing of the first node U1.
  • the third node U3 determines the receiving timing of the wireless signal from the first node U1 to the third node U3 according to the first index.
  • the third node U3 determines the transmission timing of the wireless signal from the third node U3 to the first node U1 according to the first index.
  • the second time period set is indicated by a bitmap.
  • any time period in the second time period set overlaps with a time period in the first time period set after the time domain moves for the second time period, and the second time period does not exceed one time period length.
  • any time period in the second time period set overlaps with a time period in the first time period set after the time domain moves for the second time period, and the second time period exceeds a time period. length.
  • any period in the second time window overlaps with a period in the first time window after the time domain moves for the second period of time, and the second period of time does not exceed one period length.
  • the time periods in the second time period set correspond to the time periods in the first time period set one-to-one, and any time period in the second time period set to the corresponding time period in the first time period set
  • the time interval between is the same as the time interval from the first target period to the second reference period.
  • the third signal is SCI (Sidelink Control Information, secondary link control information).
  • the physical layer channel occupied by the third signal includes PSCCH.
  • the physical layer channel occupied by the fourth signal includes PSSCH (Physical Sidelink Shared Channel, physical secondary link shared channel).
  • PSSCH Physical Sidelink Shared Channel, physical secondary link shared channel
  • the physical layer channel occupied by the fifth signaling includes PSFCH.
  • the configuration information of the fourth signal included in the third signal includes time domain resources occupied by the fourth signal, frequency domain resources occupied by the fourth signal, and MCS (Modulation and Coding Status) adopted by the four signals, RV (Redundancy Version) adopted by the fourth signal, and NDI (New Data Indicator) corresponding to the fourth signal Data indication) or at least one of the HARQ process numbers used by the fourth signal.
  • MCS Modulation and Coding Status
  • RV Redundancy Version
  • NDI New Data Indicator
  • the sending of the third signal and the fourth signal refers to the timing in the second time period set.
  • the meaning includes: the boundary of the multi-carrier symbol occupied by the sending of the third signal and the The boundaries of the multi-carrier symbols in the second time period set are aligned, and the boundaries of the multi-carrier symbols occupied by sending the fourth signal are aligned with the boundaries of the multi-carrier symbols in the second time period set.
  • the sending of the third signal and the fourth signal refers to the timing in the second time period set.
  • the meaning includes: the third signal in the nth time period set in the second time period set. Period is sent, and the third signal indicates that the fourth signal is sent in the k-th period after the period occupied by the third signal, then the fourth signal is in the second period set
  • the n+kth period of time is sent; both the n and the k are non-negative integers.
  • the reference to the timing of the reception of the fifth signaling in the second time period set means: the boundary of the multi-carrier symbol occupied by the reception of the fifth signal and the time in the second time period set The boundaries of the multi-carrier symbols are aligned.
  • the reception of the fifth signaling with reference to the timing in the second time period set means that the third signal is sent in the nth time period in the second time period set, and If the fifth signal is received in the k1th period after the period occupied by the third signal, then the first node U1 receives the first node U1 in the n+k1th period in the second period set.
  • Five signals; the n and the k1 are both non-negative integers.
  • the reception of the fifth signaling with reference to the timing in the second time period set means that the fourth signal is sent in the n1th time period in the second time period set, and If the fifth signal is received in the k2 time period after the time period occupied by the fourth signal, the first node U1 receives the first node U1 in the n1+k2 time period in the second time period set.
  • Five signals; the n1 and the k2 are both non-negative integers.
  • the synchronization signal includes PSS (Primary Synchronization Signal, primary synchronization signal) and SSS (Secondary Synchronization Signal, secondary synchronization signal).
  • PSS Primary Synchronization Signal
  • SSS Secondary Synchronization Signal, secondary synchronization signal
  • the synchronization signal includes a pseudo-random sequence.
  • the synchronization signal includes a Zadoff-Chu sequence.
  • the first time window is used to determine the downlink time slot synchronization of the first node U1
  • the synchronization signal is used to determine the downlink multi-carrier symbol synchronization of the first node U1.
  • the first time window is used to determine the downlink subframe synchronization of the first node U1
  • the synchronization signal is used to determine the downlink multi-carrier symbol synchronization of the first node U1.
  • the first time window is used to determine the downlink radio frame synchronization of the first node U1
  • the synchronization signal is used to determine the downlink multi-carrier symbol synchronization of the first node U1.
  • the first time window is determined according to the timing of the second node N2 itself.
  • the sequence number of the time period included in the first time window has been compensated according to the transmission delay corresponding to the first distance, and the first distance is the distance from the second node N2 to the perigee.
  • the meaning of the above compensation includes: the synchronization signal in the first time window is detected in the mth time slot considered by the first node U1 side, and the The quantized value of the transmission delay corresponding to a distance is L time slots, then the second node N2 sends the synchronization signal in the mLth time slot.
  • the meaning of the above compensation includes: the synchronization signal in the first time window is sent in the m-th time slot in the second node N2 side, and the first The quantized value of the transmission delay corresponding to the distance is L time slots, then the second node N2 detects the synchronization signal in the m+Lth time slot, and the second node considers it to be downlink The mth time slot.
  • the second time window includes K1 periods, and the K1 is a positive integer.
  • the length of each period in the second time window is the same.
  • each period in the second time window includes 14 multi-carrier symbols.
  • the duration of each period in the second time window is 1 millisecond.
  • the duration of each period in the second time window is 0.5 milliseconds.
  • each period in the second time window is a subframe.
  • each period in the second time window is a time slot.
  • the second signal is a wireless signal.
  • the second signal is a baseband channel.
  • each period in the second time window is a time slot.
  • the target signal is a wireless signal.
  • the target signal is a baseband channel.
  • Embodiment 6 illustrates a schematic diagram of the first time length, as shown in FIG. 6.
  • the upper continuous time period corresponds to the timing of the second node in this application, that is, the downlink timing of the first node Uu port; the lower continuous time period corresponds to the first node in this application
  • the sending timing when sending to the second node is the uplink timing of the Uu port of the first node; the time deviation marked in the figure corresponds to the first time length; each rectangular grid in the figure represents a period of time, where The letter corresponds to the serial number of the time period.
  • the first time length is equal to the sum of the first time value and the second time value.
  • the first time value is related to the distance between the second node and the first node.
  • the first time value is equal to twice the transmission delay from the first node to the second node.
  • the TA does not include the TA corresponding to the distance from the second node to the ground.
  • the TA is equal to twice the transmission delay of the distance from the second node to the first node minus the vertical distance from the second node to the ground.
  • the second time value is equal to zero.
  • the second time value is equal to 624 times the sampling time.
  • the first time value is equal to the product of N TA and T S in TS 36.211.
  • the second time value equal to the product of T S 624 in the TS 36.211.
  • the second time value is related to the uplink and downlink handover time of the first node.
  • Embodiment 7 illustrates a schematic diagram of the first time period set and the second time period set, as shown in FIG. 7.
  • the first time period set includes K1 time periods
  • the second time period set includes K1 time periods
  • the K1 time period in the second time period set is identical to all the time periods in the first time period set.
  • the K1 time periods have a one-to-one correspondence; the time between any time period of the K1 time periods included in the second time period set to the corresponding time period of the K1 time periods included in the first time period set
  • the interval is equal to the given time value.
  • the first row corresponds to the downlink timing between the first node and the second node
  • the second row corresponds to the V2X timing between the first node and the third node
  • the rectangular frame represents the time period
  • the bold dashed line box marks the first time period set
  • the diagonal line fills the second time period set.
  • the given time value is the same as the time interval from the first target period in this application to the second reference period in this application.
  • the given time value is equal to the second time length in this application.
  • Embodiment 8 illustrates a schematic diagram of the first target period and the second reference period, as shown in FIG. 8.
  • the first row shown in the figure corresponds to the timing of the second node itself
  • the second row corresponds to the downlink timing determined by the first node according to the downlink from the second node to the first node
  • the third row corresponds to the first node according to the first node to the first node.
  • the uplink timing determined by the uplink of the two nodes, the fourth row corresponds to the timing broadcast by the first node to the third node for V2X;
  • the second reference period shown in the figure is the first time window and the second target period The earlier one of the two overlapping periods;
  • the diagonal line in the figure is filled with the second reference period, the diagonal square shown in the figure is filled with the first target period;
  • the second time length shown in the figure is equal to The time interval between the start moment of the second reference period in the time domain and the start moment of the first target period in the time domain, and the first target period shown in the figure is between the first node and the first node
  • the index in the timing of the V2X transmission between the three nodes is the first index in this application.
  • the time period labeled 3 according to the timing of the second node itself in the figure belongs to a time period in the first time period set in this application.
  • the time period marked by the thick solid line in the figure corresponds to the time period when the first node is used for V2X transmission.
  • the first target period is a subframe
  • the first index is used to indicate the subframe sequence number of the first target period in the second time window in this application.
  • the first target time period is a time slot
  • the first index is used to indicate the time slot sequence number of the first target time period in the second time window in this application.
  • the first target period belongs to a first radio frame
  • the first index includes a first sub-index
  • the first sub-index is used to indicate the first radio frame in the present application. 2.
  • the radio frame sequence number in the time window is used to indicate the first radio frame in the present application.
  • the first index is a non-negative integer.
  • Embodiment 9 illustrates another schematic diagram of the first target period and the second reference period, as shown in FIG. 8.
  • the first row shown in the figure corresponds to the timing of the second node itself
  • the second row corresponds to the downlink timing determined by the first node according to the downlink from the second node to the first node
  • the third row corresponds to the first node according to the first node to the first node.
  • the uplink timing determined by the uplink of the two nodes, the fourth row corresponds to the timing broadcast by the first node to the third node for V2X;
  • the second reference period shown in the figure is the first time window and the second target period One of the two overlapping periods is the longer one;
  • the diagonal line in the figure is filled with the second reference period, and the diagonal square shown in the figure is filled with the first target period;
  • the second shown in the figure The time length is equal to the time interval between the start moment of the second reference period in the time domain and the start moment of the first target period in the time domain.
  • the first target period shown in the figure is in the first
  • the index in the timing of the V2X transmission between the node and the third node is the first index in this application.
  • the time period labeled 3 according to the timing of the second node itself in the figure belongs to a time period in the first time period set in this application.
  • the time period marked by the thick solid line in the figure corresponds to the time period when the first node is used for V2X transmission.
  • the first target period is a subframe
  • the first index is used to indicate the subframe sequence number of the first target period in the second time window in this application.
  • the first target time period is a time slot
  • the first index is used to indicate the time slot sequence number of the first target time period in the second time window in this application.
  • the first target period belongs to a first radio frame
  • the first index includes a first sub-index
  • the first sub-index is used to indicate the first radio frame in the present application. 2.
  • the radio frame sequence number in the time window is used to indicate the first radio frame in the present application.
  • the first index is a non-negative integer.
  • Embodiment 10 illustrates a schematic diagram of an application scenario, as shown in FIG. 10.
  • the Uu link uplink transmission is performed between the first node and the second node shown in the figure, and the first node simultaneously performs V2X communication with the third node; the second node passes the coverage
  • the terminal equipment allocates V2X time-frequency resources to realize the control of V2X communication.
  • the terminal device under the coverage includes the first node.
  • the terminal device under the coverage includes the third node.
  • the third node can receive the third signaling, and the third signaling is used by the third node to determine the first time length.
  • the third node determines the position of the first target period according to the first time length.
  • the first node sends a synchronization signal for V2X synchronization in the first target period
  • the third node blindly detects the synchronization for V2X synchronization in the first target period signal
  • Embodiment 11 illustrates a structural block diagram in the first node, as shown in FIG. 11.
  • the first node 1100 includes a first receiver 1101 and a first transceiver 1102.
  • the first receiver 1101 receives first signaling, second signaling, and third signaling, where the first signaling indicates a first time period set, the second signaling indicates a first time window, and the first signaling Any time period in the time period set is a time period in the first time window, the timing of each time period in the first time window refers to the receiving timing of the first node side, and the third signaling indicates the first time window.
  • the first transceiver 1102 sends a first signal in the first target period according to the timing of the first target period, the first target period being delayed by the first length of time followed by the first reference period, the first reference period Is a period in the first period set;
  • the first signal includes first information
  • the first information indicates a first index
  • the index of the first index and the index of the second reference period in the first time window are the same, and the The second reference period and the first target period overlap in the time domain, and the first reference period and the first target period do not overlap in the time domain; the second reference period is the first time window A period in.
  • the first transceiver 1102 sends a second signal; the second signal includes second information, and the second information is used to determine a second time length; the second time length is related to the The time interval between the start time of the second reference period in the time domain and the start time of the first target period in the time domain is related.
  • the first transceiver 1102 sends a target signal; the target signal indicates a second time period set from a second time window, and the first target time period is a time period in the second time window, The index of the first target period in the second time window is the first index.
  • the first transceiver 1102 sends the third signal and the fourth signal, and the first transceiver receives the fifth signal; the third signal and the fourth signal are sent with reference to The timing in the second time period set, the reception of the fifth signaling refers to the timing in the second time period set, the third signal includes the configuration information of the fourth signal, and the fifth signal It is used to determine whether the fourth signal is received correctly.
  • the first receiver 1101 receives a synchronization signal; the synchronization signal is the multi-carrier symbol occupied by the synchronization signal in the period to which the synchronization signal belongs at the start time of reception of the synchronization signal at the first node The beginning of the moment.
  • the first receiver 1101 includes at least the first four of the antenna 452, the receiver 454, the multi-antenna receiving processor 458, the receiving processor 456, and the controller/processor 459 in the fourth embodiment.
  • the first transceiver 1102 includes at least the first four of the antenna 452, the transmitter 454, the multi-antenna transmission processor 457, the transmission processor 468, and the controller/processor 459 in the fourth embodiment.
  • Embodiment 12 illustrates a structural block diagram in the second node, as shown in FIG. 12.
  • the second node 1200 includes a first transmitter 1201.
  • the first transmitter 1201 transmits first signaling, second signaling, and third signaling, the first signaling indicates a first time period set, the second signaling indicates a first time window, and the first signaling Any time period in the time period set is a time period in the first time window, the timing of each time period in the first time window refers to the receiving timing on the first node side, and the third signaling indicates the first time length;
  • the recipient of the first signaling includes the first node, and the first node sends the first signal in the first target period according to the timing of the first target period, and the first node
  • the first reference period is the first reference period, which is a period in the first period set
  • the first signal includes first information, and the first information indicates the first Index, the first index and the second reference period have the same index in the first time window, the second reference period and the first target period overlap in the time domain, the first reference period There is no overlap with the first target period in the time domain;
  • the second reference period is a period in the first time window.
  • the first transmitter 1201 sends a synchronization signal;
  • the synchronization signal is the multi-carrier symbol occupied by the synchronization signal in the period to which the synchronization signal belongs at the start time of reception of the synchronization signal at the first node The beginning of the moment.
  • the first transmitter 1201 includes at least the first four of the antenna 420, the transmitter 418, the multi-antenna transmission processor 471, the transmission processor 416, and the controller/processor 475 in the fourth embodiment.
  • Embodiment 13 illustrates a structural block diagram in the third node, as shown in FIG. 13.
  • the third node 1300 includes a second transceiver 1301.
  • the second transceiver 1301 receives the first signal in the first target period according to the timing of the first target period. After the first target period is delayed by the first length of time, the first reference period is the first reference period. A time period in a time period set;
  • the sender of the first signal is the first node; the first node determines the first time period set by receiving first signaling, and determines the first time window by receiving second signaling, Any time period in the first time period set is a time period in the first time window, the timing of each time period in the first time window refers to the receiving timing on the first node side, and the first time window A node determines the first time length by receiving a third signaling; the first signal includes first information, the first information indicates a first index, and the first index and the second reference period are in the first The indexes in a time window are the same, the second reference period and the first target period overlap in the time domain, and the first reference period and the first target period do not overlap in the time domain; The second reference period is a period in the first time window.
  • the second transceiver 1301 receives a second signal; the second signal includes second information, and the second information is used to determine a second time length; the second time length is related to the The time interval between the start time of the second reference period in the time domain and the start time of the first target period in the time domain is related.
  • the second transceiver 1301 receives a target signal; the target signal indicates a second time period set from a second time window, and the first target time period is a time period in the second time window, The index of the first target period in the second time window is the first index.
  • the second transceiver 1301 receives the third signal and the fourth signal; and the second transceiver 1301 sends the fifth signaling; the third signal and the fourth signal are sent with reference to At the timing in the second time period set, the reception of the fifth signaling refers to the timing in the second time period set, the third signal includes the configuration information of the fourth signal, and the fifth signal The signal is used to determine whether the fourth signal is received correctly.
  • the second transceiver 1301 includes the antenna 420, the transmitter/receiver 418, the multi-antenna transmitting processor 471, the multi-antenna receiving processor 472, the transmitting processor 416, and the receiving processor in the fourth embodiment. 470. At least the first 6 of the controller/processor 475.
  • each module unit in the above-mentioned embodiment can be realized in the form of hardware or software function module, and this application is not limited to the combination of software and hardware in any specific form.
  • the first and second nodes in this application include but are not limited to mobile phones, tablets, notebooks, internet cards, low-power devices, eMTC devices, NB-IoT devices, in-vehicle communication devices, vehicles, vehicles, RSUs, aircraft , Aircraft, drones, remote control aircraft and other wireless communication equipment.
  • the base stations in this application include, but are not limited to, macro cell base stations, micro cell base stations, home base stations, relay base stations, eNB, gNB, transmission and reception nodes TRP, GNSS, relay satellites, satellite base stations, aerial base stations, RSUs and other wireless communication equipment .

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Abstract

本申请公开了一种被用于无线通信的节点中的方法和装置。第一节点首先从基站侧确定第一时段集合、第一时间窗和第一时间长度，所述第一时段集合属于所述第一时间窗，所述第一时间窗中每个时段的定时参考所述第一节点侧的接收定时；随后根据第一目标时段的定时在所述第一目标时段中发送第一信号，所述第一目标时段延迟第一时间长度之后是第一参考时段，所述第一参考时段属于第一时段集合；所述第一信号指示第一索引，所述第一索引与第二参考时段在所述第一时间窗中的索引相同。本申请通过将第一索引发送给副链路上的终端，从而避免大传输延迟系统中蜂窝链路和副链路之间的干扰，提高系统整体性能。

Description

一种被用于无线通信的节点中的方法和装置 技术领域
本申请涉及无线通信系统中的传输方法和装置，尤其涉及传输延迟较大的系统中定时同步的方法和装置。
背景技术
针对迅猛发展的车联网(Vehicle-to-Everything，V2X)业务，3GPP也开始启动了在NR框架下的标准制定和研究工作。目前3GPP已经完成了面向5G V2X业务的需求制定工作，并写入标准TS22.886中。3GPP为5G V2X业务定义了4大应用场景组(Use Case Groups)，包括：自动排队驾驶(Vehicles Platnooning)，支持扩展传感(Extended Sensors)，半/全自动驾驶(Advanced Driving)和远程驾驶(Remote Driving)。目前的V2X系统中，同时支持基于基站配置时频资源用于V2X传输，以及V2X的发送端通过感知测量(Sensing Measurement)确定时频资源用于V2X传输。
与此同时，为了能够适应多样的应用场景和满足不同的需求，在3GPP RAN#75次全会上还通过了NR下的非地面网络(NTN，Non-Terrestrial Networks)的研究项目，该研究项目在R15版本开始。在3GPP RAN#79次全会上决定开始研究NTN网络中的解决方案，然后在R16或R17版本中启动WI对相关技术进行标准化。
发明内容
NTN网络具有覆盖广的优势，当NTN结合V2X技术时，NTN网络能够为地面基站覆盖不到的地理位置配置用于V2X传输的时频资源，随后V2X终端间基于现有的sensing的方式确定实际传输的时频资源。目前Rel-12的D2D中，副链路上的同步信号、PSDCH(Physical Sidelink Discovery Channel，物理副链路发现信道)以及PSCCH(Physical Sidelink Control Channel，物理副链路控制信道)均是基于基站到UE侧的下行定时(DL Timing)确定发送时刻的，而为了避免对UE蜂窝链路(Cellular Link)以及基站上行接收的干扰，PSSCH(Physical Sidelink Shared Channel，物理副链路共享信道)的发送是按照Uu口的上行定时(UL Timing)确定的，且通过在SCI(Sidelink Control Information，副链路控制信息)中指示副链路的TA(Timing Advance)实现。然而当把V2X引入NTN网络中时，由于不同UE之间的TA存在很大的差异，甚至达到几个甚至十几个毫秒，如果沿用Rel-12的方式，PSCCH按照Uu口的下行定时进行发送，而PSSCH按照Uu口的上行定时进行发送，PSCCH与PSSCH之间需要引入很大的调度延迟才能保证PSSCH不会因为TA的原因而位于PSCCH之前。上述方式显然是不合理的。
基于上述新的应用场景和需求，本申请公开了一种解决方案，需要说明的是，在不冲突的情况下，本申请的第一节点和第三节点的实施例和实施例中的特征可以应用到基站中，且本申请中的第二节点的实施例和实施例中的特征可以应用到终端中。与此同时，在不冲突的情况下，本申请的实施例和实施例中的特征可以任意相互组合。
本申请公开了一种被用于无线通信的第一节点中的方法，其特征在于包括：
接收第一信令、第二信令和第三信令，所述第一信令指示第一时段集合，所述第二信令指示第一时间窗，所述第一时段集合中的任一时段是所述第一时间窗中的一个时段，所述第一时间窗中每个时段的定时参考所述第一节点侧的接收定时，所述第三信令指示第一时间长度；
根据第一目标时段的定时在所述第一目标时段中发送第一信号，所述第一目标时段延迟第一时间长度之后是第一参考时段，所述第一参考时段是第一时段集合中的一个时段；
其中，所述第一信号包括第一信息，所述第一信息指示第一索引，所述第一索引与第二参考时段在所述第一时间窗中的索引相同，所述第二参考时段与所述第一目标时段在时域有交叠，所述第一参考时段与所述第一目标时段在时域没有交叠；所述第二参考时段是所述第一时间窗中的一个时段。
作为一个实施例，上述方法的原理在于：第一节点按照基站侧的上行定时发送副链路上的无线信号，并将基站到第一节点之间的TA转化成第一索引发送给与所述第一节点进行V2X通信的终端，以告知V2X信号的接收终端在按照第一节点的发送定时下所述第一信号所占用的时隙或子帧的位置。
作为一个实施例，上述方法的好处在于：通过将V2X的发送全部按照基站的上行定时进行传输，避免了蜂窝链路的上行传输对V2X的干扰；且通过第一索引，让V2X接收端知道V2X发送端中副链路同步信号或PSBCH(Physical Sidelink Broadcasting Channel，物理副链路广播信道)所在的位置，进而用于推断后续PSCCH和PSSCH所在的时隙或子帧的序号。
作为一个实施例，上述方法的另一个好处在于：上述方法更适合UE专属的配置V2X的时频资源池，进而V2X接收端只需要跟随发送端的定时来进行操作，而不要所有终端均参考基站侧的上行定时，进而使资源配置更为灵活。
根据本申请的一个方面，上述方法的特征在于，包括：
发送第二信号；
其中，所述第二信号包括第二信息，所述第二信息被用于确定第二时间长度；所述第二时间长度与所述第二参考时段在时域的起始时刻与所述第一目标时段在时域的起始时刻之间的时间间隔有关。
作为一个实施例，上述方法的好处在于：所述第一信息反应的是子帧或者时隙级别的因为传输延迟导致的第一参考时段的偏移，而所述第二信息是类似多载波符号级别的更小颗粒度的因为传输延迟导致的偏移，从而使所述第三节点更为精确的确定第二节点到第一节点之间的传输时延或TA。
根据本申请的一个方面，上述方法的特征在于，包括：
发送目标信号；
其中，所述目标信号从第二时间窗中指示第二时段集合，所述第一目标时段是所述第二时间窗中的一个时段，所述第一目标时段在所述第二时间窗中的索引是所述第一索引。
作为一个实施例，上述方法的好处在于：所述第二时段集合是所述第一节点按照PC-5链路的定时同步确定的用于V2X传输的时域资源，进而便于第三节点确定后续来自第一节点的SCI和PSSCH所占用的时域资源，以及何时发送PSFCH(Physical Sidelink Feedback Channel，物理副链路反馈信道)。
根据本申请的一个方面，上述方法的特征在于，包括：
发送第三信号和第四信号；
接收第五信令；
其中，所述第三信号和所述第四信号的发送均参考在所述第二时段集合中的定时，所述第五信令的接收参考在所述第二时段集合中的定时，所述第三信号包括所述第四信号的配置信息，所述第五信号被用于确定所述第四信号是否被正确接收。
作为一个实施例，上述方法的好处在于：第一节点的副链路上的传输均按照所述第二时段集合确定，进而使第三节点更为确定V2X实际传输的时域位置；且当第三节点不能接入NTN网络时，依然能够和第一节点进行V2X通信，且不会对Uu口产生干扰。
根据本申请的一个方面，上述方法的特征在于，包括：
接收同步信号；
其中，所述同步信号在所述第一节点的接收起始时刻是所述同步信号所属的时段中 所述同步信号所占用的多载波符号的起始时刻。
作为一个实施例，上述方法的本质在于：通过来自基站的同步信号，第一节点确定多载波符号级的下行同步。
本申请公开了一种被用于无线通信的第二节点中的方法，其特征在于包括：
发送第一信令、第二信令和第三信令，所述第一信令指示第一时段集合，所述第二信令指示第一时间窗，所述第一时段集合中的任一时段是所述第一时间窗中的一个时段，所述第一时间窗中每个时段的定时参考第一节点侧的接收定时，所述第三信令指示第一时间长度；
其中，所述第一信令的接收者包括所述第一节点，所述第一节点根据第一目标时段的定时在所述第一目标时段中发送第一信号，所述第一目标时段延迟所述第一时间长度之后是第一参考时段，所述第一参考时段是第一时段集合中的一个时段；所述第一信号包括第一信息，所述第一信息指示第一索引，所述第一索引与第二参考时段在所述第一时间窗中的索引相同，所述第二参考时段与所述第一目标时段在时域有交叠，所述第一参考时段与所述第一目标时段在时域没有交叠；所述第二参考时段是所述第一时间窗中的一个时段。
根据本申请的一个方面，上述方法的特征在于，包括：
发送同步信号；
其中，所述同步信号在所述第一节点的接收起始时刻是所述同步信号所属的时段中所述同步信号所占用的多载波符号的起始时刻。
本申请公开了一种被用于无线通信的第三节点中的方法，其特征在于包括：
根据第一目标时段的定时在第一目标时段中接收第一信号，所述第一目标时段延迟第一时间长度之后是第一参考时段，所述第一参考时段是第一时段集合中的一个时段；
其中，所述第一信号的发送者是第一节点；所述第一节点通过接收第一信令确定所述第一时段集合，且通过接收第二信令确定第一时间窗，所述第一时段集合中的任一时段是所述第一时间窗中的一个时段，所述第一时间窗中每个时段的定时参考所述第一节点侧的接收定时，且所述第一节点通过接收第三信令确定所述第一时间长度；所述第一信号包括第一信息，所述第一信息指示第一索引，所述第一索引与第二参考时段在所述第一时间窗中的索引相同，所述第二参考时段与所述第一目标时段在时域有交叠，所述第一参考时段与所述第一目标时段在时域没有交叠；所述第二参考时段是所述第一时间窗中的一个时段。
根据本申请的一个方面，上述方法的特征在于，包括：
接收第二信号；
其中，所述第二信号包括第二信息，所述第二信息被用于确定第二时间长度；所述第二时间长度与所述第二参考时段在时域的起始时刻与所述第一目标时段在时域的起始时刻之间的时间间隔有关。
根据本申请的一个方面，上述方法的特征在于，包括：
接收目标信号；
其中，所述目标信号从第二时间窗中指示第二时段集合，所述第一目标时段是所述第二时间窗中的一个时段，所述第一目标时段在所述第二时间窗中的索引是所述第一索引。
根据本申请的一个方面，上述方法的特征在于，包括：
接收第三信号和第四信号；
发送第五信令；
其中，所述第三信号和所述第四信号的发送均参考在所述第二时段集合中的定时，所述第五信令的接收参考在所述第二时段集合中的定时，所述第三信号包括所述第四信号的配置信息，所述第五信号被用于确定所述第四信号是否被正确接收。
本申请公开了一种被用于无线通信的第一节点，其特征在于包括：
第一接收机，接收第一信令、第二信令和第三信令，所述第一信令指示第一时段集合，所述第二信令指示第一时间窗，所述第一时段集合中的任一时段是所述第一时间窗中的一个时段，所述第一时间窗中每个时段的定时参考所述第一节点侧的接收定时，所述第三信令指示第一时间长度；
第一收发机，根据第一目标时段的定时在所述第一目标时段中发送第一信号，所述第一目标时段延迟第一时间长度之后是第一参考时段，所述第一参考时段是第一时段集合中的一个时段；
其中，所述第一信号包括第一信息，所述第一信息指示第一索引，所述第一索引与第二参考时段在所述第一时间窗中的索引相同，所述第二参考时段与所述第一目标时段在时域有交叠，所述第一参考时段与所述第一目标时段在时域没有交叠；所述第二参考时段是所述第一时间窗中的一个时段。
本申请公开了一种被用于无线通信的第二节点，其特征在于包括：
第一发射机，发送第一信令、第二信令和第三信令，所述第一信令指示第一时段集合，所述第二信令指示第一时间窗，所述第一时段集合中的任一时段是所述第一时间窗中的一个时段，所述第一时间窗中每个时段的定时参考第一节点侧的接收定时，所述第三信令指示第一时间长度；
其中，所述第一信令的接收者包括所述第一节点，所述第一节点根据第一目标时段的定时在所述第一目标时段中发送第一信号，所述第一目标时段延迟所述第一时间长度之后是第一参考时段，所述第一参考时段是第一时段集合中的一个时段；所述第一信号包括第一信息，所述第一信息指示第一索引，所述第一索引与第二参考时段在所述第一时间窗中的索引相同，所述第二参考时段与所述第一目标时段在时域有交叠，所述第一参考时段与所述第一目标时段在时域没有交叠；所述第二参考时段是所述第一时间窗中的一个时段。
本申请公开了一种被用于无线通信的第三节点，其特征在于包括：
第二收发机，根据第一目标时段的定时在第一目标时段中接收第一信号，所述第一目标时段延迟第一时间长度之后是第一参考时段，所述第一参考时段是第一时段集合中的一个时段；
其中，所述第一信号的发送者是第一节点；所述第一节点通过接收第一信令确定所述第一时段集合，且通过接收第二信令确定第一时间窗，所述第一时段集合中的任一时段是所述第一时间窗中的一个时段，所述第一时间窗中每个时段的定时参考所述第一节点侧的接收定时，且所述第一节点通过接收第三信令确定所述第一时间长度；所述第一信号包括第一信息，所述第一信息指示第一索引，所述第一索引与第二参考时段在所述第一时间窗中的索引相同，所述第二参考时段与所述第一目标时段在时域有交叠，所述第一参考时段与所述第一目标时段在时域没有交叠；所述第二参考时段是所述第一时间窗中的一个时段。
作为一个实施例，和传统方案相比，本申请具备如下优势：
-.通过将V2X的发送全部按照基站的上行定时进行传输，避免了蜂窝链路的上行传输对V2X的干扰；且通过第一索引，让V2X接收端知道V2X发送端中副链路同步信号或PSBCH所在的位置，进而用于推断后续PSCCH和PSSCH所在的时隙或子帧的序号；
-.上述方法更适合UE专属的配置V2X的时频资源池，进而V2X接收端只需要跟随发送端的定时来进行操作，而不需要所有终端均参考基站侧的上行定时，进而使资源配置更为灵活；
-.所述第一信息反应的是子帧或时隙级别的因为传输延迟导致的第一参考时段的偏移，而所述第二信息是类似多载波符号级别的更小颗粒度的因为传输延迟导致的偏移，从而使所述第三节点更为精确的确定第二节点到第一节点之间的传输时延或TA；
-.所述第二时段集合是所述第一节点按照自身的定时同步确定的用于V2X传输的时域资源，进而便于第三节点确定后续来自第一节点的SCI和PSSCH所占用的时域资源，以及何时发送PSFCH。
附图说明
通过阅读参照以下附图中的对非限制性实施例所作的详细描述，本申请的其它特征、目的和优点将会变得更加明显：
图1示出了根据本申请的一个实施例的第一节点的处理流程图；
图2示出了根据本申请的一个实施例的网络架构的示意图；
图3示出了根据本申请的一个实施例的用户平面和控制平面的无线协议架构的实施例的示意图；
图4示出了根据本申请的一个实施例的第一通信设备和第二通信设备的示意图；
图5示出了根据本申请的一个实施例的第一信令的流程图；
图6示出了根据本申请的一个实施例的第一时间长度；
图7示出了根据本申请的一个实施例的第一时段集合和第二时段集合的示意图；
图8示出了根据本申请的一个实施例的第一目标时段和第二参考时段的示意图；
图9示出了根据本申请的另一个实施例的第一目标时段和第二参考时段的示意图；
图10示出了根据本申请的一个实施例的应用场景的示意图；
图11示出了根据本申请的一个实施例的用于第一节点中的结构框图；
图12示出了根据本申请的一个实施例的用于第二节点中的结构框图；
图13示出了根据本申请的一个实施例的用于第三节点中的结构框图。
具体实施方式
下文将结合附图对本申请的技术方案作进一步详细说明，需要说明的是，在不冲突的情况下，本申请的实施例和实施例中的特征可以任意相互组合。
实施例1
实施例1示例了一个第一节点的处理流程图，如附图1所示。在附图1所示的100中，每个方框代表一个步骤。在实施例1中，本申请中的第一节点在步骤101接收第一信令、第二信令和第三信令，所述第一信令指示第一时段集合，所述第二信令指示第一时间窗，所述第一时段集合中的任一时段是所述第一时间窗中的一个时段，所述第一时间窗中每个时段的定时参考所述第一节点侧的接收定时，所述第三信令指示第一时间长度；在步骤102中根据第一目标时段的定时在所述第一目标时段中发送第一信号，所述第一目标时段延迟第一时间长度之后是第一参考时段，所述第一参考时段是第一时段集合中的一个时段。
实施例1中，所述第一信号包括第一信息，所述第一信息指示第一索引，所述第一索引与第二参考时段在所述第一时间窗中的索引相同，所述第二参考时段与所述第一目标时段在时域有交叠，所述第一参考时段与所述第一目标时段在时域没有交叠；所述第二参考时段是所述第一时间窗中的一个时段。
作为一个实施例，所述第二参考时段与所述第一目标时段在时域有交叠的意思包括：至少存在一个多载波符号同时属于所述第二参考时段所占用的时域资源以及所述第一目标时段所占用的时域资源。
作为一个实施例，所述第二参考时段与所述第一目标时段在时域有交叠的意思包括：所述第二参考时段在时域的起始时间不晚于所述第一目标时段在时域的起始时间，且所述第二参考时段在时域的截止时间晚于所述第一目标时段在时域的起始时间。
作为一个实施例，所述第二参考时段与所述第一目标时段在时域有交叠的意思包括：所述第二参考时段在时域的起始时间晚于所述第一目标时段在时域的起始时间，且所述第一目标时段在时域的截止时间不晚于所述第二参考时段在时域的截止时间晚于所述。
作为一个实施例，所述第一参考时段与所述第一目标时段在时域没有交叠的意思包括： 不存在一个多载波符号同时属于所述第一参考时段所占用的时域资源以及所述第一目标时段所占用的时域资源。
作为一个实施例，所述第一参考时段与所述第一目标时段在时域没有交叠的意思包括：所述第二参考时段在时域的起始时间和截止时间均不晚于所述第一目标时段在时域的起始时间，或者所述第二参考时段在时域的起始时间和截止时间均晚于所述第一目标时段在时域的起始时间。
作为一个实施例，所述第一信令的发送者是第二节点。
作为一个实施例，所述第二节点是一个NTN中的基站。
作为一个实施例，所述第二节点是一个非地面基站。
作为一个实施例，所述第二节点是GEO(Geostationary Earth Orbiting，同步地球轨道)卫星、MEO(Medium Earth Orbiting，中地球轨道)卫星、LEO(Low Earth Orbit，低地球轨道)卫星、HEO(Highly Elliptical Orbiting，高椭圆轨道)卫星或Airborne Platform(空中平台)中的之一。
作为一个实施例，所述第一时段集合包括K1个时段，所述K1是正整数。
作为该实施例的一个子实施例，所述K1个时段分别是K1个时隙。
作为该实施例的一个子实施例，所述K1个时段分别是K1个子帧。
作为该实施例的一个子实施例，所述K1个时段分别是K1个无线帧。
作为该实施例的一个子实施例，所述K1个时段分别是K1个微时隙(Mini-slot)。
作为一个实施例，所述第一时段集合是按照第二节点的定时被预留的用于非蜂窝链路的传输的时域资源。
作为该实施例的一个子实施例，所述非蜂窝链路包括副链路。
作为该实施例的一个子实施例，所述非蜂窝链路被用于V2X业务的传输。
作为一个实施例，所述第二信令在PBCH(Physical Broadcasting Channel，物理广播信道)上被发送。
作为一个实施例，所述第一信号在PSBCH上被发送。
作为一个实施例，所述第一信号在PSDCH上被发送。
作为一个实施例，所述第一信息在SL-BCH(Sidelink Broadcasting Channel，副链路广播信道)上被发送。
作为一个实施例，所述第一信息在MasterInformationBlock-SL上被发送。
作为一个实施例，所述第一索引是一个非负整数。
作为一个实施例，所述第二信令指示所述第二信令所占用的时段在所述第一时间窗中的位置，所述第二信令所占用的所述时段是所述第一时间窗中的一个时段。
作为一个实施例，所述第二信令占用第二目标时段；所述第二信令在所述第一节点的接收起始时刻是所述第二目标时段的起始时刻；所述第二信令在所述第一节点的接收截止时刻是所述第二目标时段的截止时刻。
作为一个实施例，所述第二信令占用第二目标时段中的部分多载波符号；所述第二信令在所述第一节点的接收起始时刻是所述第二目标时段中的所述部分多载波符号的起始时刻；所述第二信令在所述第一节点的接收截止时刻是所述第二目标时段中的所述部分多载波符号的截止时刻。
作为一个实施例，本申请中的所述第二节点发送所述第一信令、第二信令和第三信令。
作为一个实施例，所述第一时间长度等于所述第一节点到第二节点的传输延迟(Transmission Delay)。
作为一个实施例，所述第一时间长度与所述第一节点到第二节点的传输延迟的量化值有关。
作为一个实施例，所述第一时间长度等于2倍的所述第一节点到第二节点的传输延迟的量化值有关。
作为一个实施例，所述第一时间长度的单位是时隙(Slot)。
作为一个实施例，所述第一时间长度的单位是毫秒。
作为一个实施例，所述第一时间长度的单位是子帧(Subframe)。
作为一个实施例，所述第一时间长度的单位是一个多载波符号所占用的时间长度。
作为一个实施例，所述第一时间长度的单位是微秒。
作为一个实施例，所述第一时间长度的单位是1/30720毫秒。
作为一个实施例，所述第一时间长度的单位是1/X毫秒，所述X是30720的正整数倍。
作为一个实施例，所述第一时间长度随着所述第一节点距离第二节点之间距离的增加而增加。
作为一个实施例，所述第一时间长度与所述第二节点的高度有关。
作为一个实施例，所述第一时间长度与所述第二节点和所述第一节点之间的倾角有关。
作为一个实施例，所述第一时间长度是所述第一节点到所述第二节点的上行传输的定时提前(Timing Advance)。
作为一个实施例，所述第二参考时段是所述第一时间窗中与所述第一目标时段中交叠的较早的一个时段。
作为一个实施例，所述第二参考时段是所述第一时间窗中与所述第一目标时段中交叠时间较长的一个时段。
作为一个实施例，当所述第一时间窗中的两个时段与所述第一目标时段交叠的时间相同时，所述第二参考时段是所述两个时段中较早的一个时段；当所述第一时间窗中的两个时段与所述第一目标时段交叠的时间不同时，所述第二参考时段是所述两个时段中交叠时间较长的一个时段。
作为一个实施例，一个时段的定时包括一个时段的起始时刻和一个时段的截止时刻。
作为一个实施例，一个时段的定时包括一个时段中每个多载波符号的起始时刻和每个多载波符号的截止时刻。
作为一个实施例，所述第一时间窗中每个时段的长度相同。
作为一个实施例，所述第一时间窗中每个时段中包括14个多载波符号。
作为一个实施例，所述第一时间窗中每个时段的持续时间是1毫秒。
作为一个实施例，所述第一时间窗中每个时段的持续时间是0.5毫秒。
作为一个实施例，所述第一时间窗中每个时段是一个子帧。
作为一个实施例，所述第一时间窗中每个时段是一个时隙。
作为一个实施例，所述第一信令、所述第二信令和所述第三信令分别包括SIB(System Information Block，系统信息块)、MIB(Master Information Block，主信息块)和TA(Timing Advance，定时提前)命令。
作为一个实施例，所述第一信令、所述第二信令和所述第三信令分别包括更高层信令。
作为一个实施例，所述第一信令和所述第二信令是广播的，所述第三信令是单播的。
作为一个实施例，所述第二信令是广播的，所述第一信令和所述第三信令是单播的。
作为一个实施例，所述第一信令、所述第二信令和所述第三信令分别包括RRC(Radio Resource Control，无线资源控制)层信令、RRC层信令和MAC(Media Access Control，媒体接入控制)层信令。
作为一个实施例，本申请中所述多载波符号是OFDM(Orthogonal Frequency Division Multiplexing，正交频分复用)符号。
作为一个实施例，本申请中所述多载波符号是SC-FDMA(Single-Carrier Frequency Division Multiple Access，单载波频分复用接入)符号。
作为一个实施例，本申请中所述多载波符号是FBMC(Filter Bank Multi Carrier，滤波器组多载波)符号。
作为一个实施例，本申请中所述多载波符号是包含CP(Cyclic Prefix，循环前缀)的OFDM 符号。
作为一个实施例，本申请中所述多载波符号是包含CP的DFT-s-OFDM(Discrete Fourier Transform Spreading Orthogonal Frequency Division Multiplexing，离散傅里叶变换扩频的正交频分复用)符号。
作为一个实施例，所述第一时段集合是所述第二节点按照所述第二节点自身的时钟配置的用于V2X传输的时域资源。
作为一个实施例，所述第一时段集合通过一个bitmap指示。
作为一个实施例，所述第一时间窗是按照所述第一节点接收到的下行定时确定的。
作为一个实施例，所述第一时间窗包括正整数个时段，所述正整数个时段是按照所述第一节点接收到的下行定时确定序号的。
作为一个实施例，所述第二节点在所述第一时段集合中不接收来自所述第一节点的上行传输。
作为一个实施例，所述第二节点在所述第一时段集合中不接收来自被所述第二节点服务的终端的上行传输。
作为一个实施例，所述第一信号在副链路上传输。
作为一个实施例，所述第一索引是无线帧号。
作为一个实施例，所述第一索引是子帧号。
作为一个实施例，所述第一索引是时隙号。
作为一个实施例，所述第二参考时段在所述第一时间窗中的索引是无线帧号。
作为一个实施例，所述第二参考时段在所述第一时间窗中的索引是子帧号。
作为一个实施例，所述第二参考时段在所述第一时间窗中的索引是时隙号。
作为一个实施例，所述第一信号是无线信号。
作为一个实施例，所述第一信号是基带信道。
实施例2
实施例2示例了网络架构的示意图，如附图2所示。
图2说明了5G NR，LTE(Long-Term Evolution，长期演进)及LTE-A(Long-Term Evolution Advanced，增强长期演进)系统的网络架构200的图。5G NR或LTE网络架构200可称为EPS(Evolved Packet System，演进分组系统)200某种其它合适术语。EPS 200可包括一个或一个以上UE(User Equipment，用户设备)201，以及包括一个与UE201进行副链路通信的UE241，NG-RAN(下一代无线接入网络)202，EPC(Evolved Packet Core，演进分组核心)/5G-CN(5G-Core Network,5G核心网)210，HSS(Home Subscriber Server，归属签约用户服务器)220和因特网服务230。EPS可与其它接入网络互连，但为了简单未展示这些实体/接口。如图所示，EPS提供包交换服务，然而所属领域的技术人员将容易了解，贯穿本申请呈现的各种概念可扩展到提供电路交换服务的网络或其它蜂窝网络。NG-RAN包括NR节点B(gNB)203和其它gNB204。gNB203提供朝向UE201的用户和控制平面协议终止。gNB203可经由Xn接口(例如，回程)连接到其它gNB204。gNB203也可称为基站、基站收发台、无线电基站、无线电收发器、收发器功能、基本服务集合(BSS)、扩展服务集合(ESS)、TRP(发送接收节点)或某种其它合适术语。gNB203为UE201提供对EPC/5G-CN 210的接入点。UE201的实例包括蜂窝式电话、智能电话、会话起始协议(SIP)电话、膝上型计算机、个人数字助理(PDA)、卫星无线电、非地面基站通信、卫星移动通信、全球定位系统、多媒体装置、视频装置、数字音频播放器(例如，MP3播放器)、相机、游戏控制台、无人机、飞行器、窄带物联网设备、机器类型通信设备、陆地交通工具、汽车、可穿戴设备，或任何其它类似功能装置。所属领域的技术人员也可将UE201称为移动台、订户台、移动单元、订户单元、无线单元、远程单元、移动装置、无线装置、无线通信装置、远程装置、移动订户台、接入终端、移动终端、无线终端、远程终端、手持机、用户代理、移动客户端、客户端或某个其它合适术语。gNB203通过S1/NG 接口连接到EPC/5G-CN 210。EPC/5G-CN 210包括MME(Mobility Management Entity,移动性管理实体)/AMF(Authentication Management Field,鉴权管理域)/UPF(User Plane Function，用户平面功能)211、其它MME/AMF/UPF214、S-GW(Service Gateway，服务网关)212以及P-GW(Packet Date Network Gateway，分组数据网络网关)213。MME/AMF/UPF211是处理UE201与EPC/5G-CN 210之间的信令的控制节点。大体上，MME/AMF/UPF211提供承载和连接管理。所有用户IP(Internet Protocal，因特网协议)包是通过S-GW212传送，S-GW212自身连接到P-GW213。P-GW213提供UE IP地址分配以及其它功能。P-GW213连接到因特网服务230。因特网服务230包括运营商对应因特网协议服务，具体可包括因特网、内联网、IMS(IP Multimedia Subsystem，IP多媒体子系统)和包交换串流服务。
作为一个实施例，所述UE201对应本申请中的所述第一节点。
作为一个实施例，所述gNB203对应本申请中的所述第二节点。
作为一个实施例，所述UE241对应本申请中的所述第三节点。
作为一个实施例，所述UE201与所述gNB203之间的空中接口是Uu接口。
作为一个实施例，所述UE201与所述UE241之间的空中接口是PC-5接口。
作为一个实施例，所述UE201与所述gNB203之间的无线链路是蜂窝链路。
作为一个实施例，所述UE201与所述UE241之间的无线链路是副链路。
作为一个实施例，本申请中的所述第一节点是所述gNB203覆盖内的一个终端。
作为一个实施例，本申请中的所述第三节点是所述gNB203覆盖外的一个终端。
作为一个实施例，本申请中的所述第三节点是所述gNB203覆盖内的一个终端。
作为一个实施例，所述第一节点和所述第三节点属于一个V2X对(Pair)。
作为一个实施例，所述第一节点是一辆汽车。
作为一个实施例，所述第一节点是一个交通工具。
作为一个实施例，所述第二节点是一个基站。
作为一个实施例，所述第三节点是一个交通工具。
作为一个实施例，所述第三节点是一辆汽车。
作为一个实施例，所述第三节点是一个RSU(Road Side Unit，路边单元)。
作为一个实施例，所述第三节点是一个终端组的组头(Group Header)。
实施例3
实施例3示出了根据本申请的一个用户平面和控制平面的无线协议架构的实施例的示意图，如附图3所示。图3是说明用于用户平面350和控制平面300的无线电协议架构的实施例的示意图，图3用三个层展示用于第一通信节点设备(UE，gNB或V2X中的RSU)和第二通信节点设备(gNB，UE或V2X中的RSU)，或者两个UE之间的控制平面300的无线电协议架构：层1、层2和层3。层1(L1层)是最低层且实施各种PHY(物理层)信号处理功能。L1层在本文将称为PHY301。层2(L2层)305在PHY301之上，且负责通过PHY301在第一通信节点设备与第二通信节点设备以及两个UE之间的链路。L2层305包括MAC(Medium Access Control，媒体接入控制)子层302、RLC(Radio Link Control，无线链路层控制协议)子层303和PDCP(Packet Data Convergence Protocol，分组数据汇聚协议)子层304，这些子层终止于第二通信节点设备处。PDCP子层304提供不同无线电承载与逻辑信道之间的多路复用。PDCP子层304还提供通过加密数据包而提供安全性，以及提供第二通信节点设备之间的对第一通信节点设备的越区移动支持。RLC子层303提供上部层数据包的分段和重组装，丢失数据包的重新发射以及数据包的重排序以补偿由于HARQ造成的无序接收。MAC子层302提供逻辑与传输信道之间的多路复用。MAC子层302还负责在第一通信节点设备之间分配一个小区中的各种无线电资源(例如，资源块)。MAC子层302还负责HARQ操作。控制平面300中的层3(L3层)中的RRC(Radio Resource Control，无线电资源控制)子层306负责获得无线电资源(即，无线电承载)且使用第二通信节点设备与第一通信节点设备之间的RRC信令来配置下部层。用 户平面350的无线电协议架构包括层1(L1层)和层2(L2层)，在用户平面350中用于第一通信节点设备和第二通信节点设备的无线电协议架构对于物理层351，L2层355中的PDCP子层354，L2层355中的RLC子层353和L2层355中的MAC子层352来说和控制平面300中的对应层和子层大体上相同，但PDCP子层354还提供用于上部层数据包的标头压缩以减少无线电发射开销。用户平面350中的L2层355中还包括SDAP(Service Data Adaptation Protocol，服务数据适配协议)子层356，SDAP子层356负责QoS流和数据无线承载(DRB，Data Radio Bearer)之间的映射，以支持业务的多样性。虽然未图示，但第一通信节点设备可具有在L2层355之上的若干上部层，包括终止于网络侧上的P-GW处的网络层(例如，IP层)和终止于连接的另一端(例如，远端UE、服务器等等)处的应用层。
作为一个实施例，附图3中的无线协议架构适用于本申请中的所述第一节点。
作为一个实施例，附图3中的无线协议架构适用于本申请中的所述第二节点。
作为一个实施例，附图3中的无线协议架构适用于本申请中的所述第三节点。
作为一个实施例，所述第一信令生成于所述RRC306。
作为一个实施例，所述第二信令生成于所述RRC306。
作为一个实施例，所述第二信令生成于所述MAC352，或者所述MAC302。
作为一个实施例，所述第三信令生成于所述MAC352，或者所述MAC302。
作为一个实施例，所述第三信令生成于所述RRC306。
作为一个实施例，所述第一信号生成于所述MAC352，或者所述MAC302。
作为一个实施例，所述第一信号生成于所述RRC306。
作为一个实施例，所述第二信号生成于所述MAC352，或者所述MAC302。
作为一个实施例，所述第二信号生成于所述RRC306。
作为一个实施例，所述目标信号生成于所述MAC352，或者所述MAC302。
作为一个实施例，所述目标信号生成于所述RRC306。
作为一个实施例，所述第三信号生成于PHY301，或者所述PHY351。
作为一个实施例，所述第四信号生成于PHY301，或者所述PHY351。
作为一个实施例，所述第四信号生成于MAC352，或者所述MAC302。
作为一个实施例，所述第五信令生成于PHY301，或者所述PHY351。
作为一个实施例，所述第五信令生成于MAC352，或者所述MAC302。
作为一个实施例，所述同步信号生成于PHY301，或者所述PHY351。
实施例4
实施例4示出了根据本申请的第一通信设备和第二通信设备的示意图，如附图4所示。图4是在接入网络中相互通信的第一通信设备450以及第二通信设备410的框图。
第一通信设备450包括控制器/处理器459，存储器460，数据源467，发射处理器468，接收处理器456，多天线发射处理器457，多天线接收处理器458，发射器/接收器454和天线452。
第二通信设备410包括控制器/处理器475，存储器476，接收处理器470，发射处理器416，多天线接收处理器472，多天线发射处理器471，发射器/接收器418和天线420。
在从所述第二通信设备410到所述第一通信设备450的传输中，在所述第二通信设备410处，来自核心网络的上层数据包被提供到控制器/处理器475。控制器/处理器475实施L2层的功能性。在从所述第二通信设备410到所述第一通信设备450的传输中，控制器/处理器475提供标头压缩、加密、包分段和重排序、逻辑与输送信道之间的多路复用，以及基于各种优先级量度对所述第一通信设备450的无线电资源分配。控制器/处理器475还负责丢失包的重新发射，和到所述第一通信设备450的信令。发射处理器416和多天线发射处理器471实施用于L1层(即，物理层)的各种信号处理功能。发射处理器416实施编码和交错以促进所述第二通信设备410处的前向错误校正(FEC)，以及基于各种调制方案(例如，二元相移键控(BPSK)、正交相移键控(QPSK)、M相移键控(M-PSK)、M正交振幅调制(M-QAM)) 的信号群集的映射。多天线发射处理器471对经编码和调制后的符号进行数字空间预编码，包括基于码本的预编码和基于非码本的预编码，和波束赋型处理，生成一个或多个空间流。发射处理器416随后将每一空间流映射到子载波，在时域和/或频域中与参考信号(例如，导频)多路复用，且随后使用快速傅立叶逆变换(IFFT)以产生载运时域多载波符号流的物理信道。随后多天线发射处理器471对时域多载波符号流进行发送模拟预编码/波束赋型操作。每一发射器418把多天线发射处理器471提供的基带多载波符号流转化成射频流，随后提供到不同天线420。
在从所述第二通信设备410到所述第一通信设备450的传输中，在所述第一通信设备450处，每一接收器454通过其相应天线452接收信号。每一接收器454恢复调制到射频载波上的信息，且将射频流转化成基带多载波符号流提供到接收处理器456。接收处理器456和多天线接收处理器458实施L1层的各种信号处理功能。多天线接收处理器458对来自接收器454的基带多载波符号流进行接收模拟预编码/波束赋型操作。接收处理器456使用快速傅立叶变换(FFT)将接收模拟预编码/波束赋型操作后的基带多载波符号流从时域转换到频域。在频域，物理层数据信号和参考信号被接收处理器456解复用，其中参考信号将被用于信道估计，数据信号在多天线接收处理器458中经过多天线检测后恢复出以所述第一通信设备450为目的地的任何空间流。每一空间流上的符号在接收处理器456中被解调和恢复，并生成软决策。随后接收处理器456解码和解交错所述软决策以恢复在物理信道上由所述第二通信设备410发射的上层数据和控制信号。随后将上层数据和控制信号提供到控制器/处理器459。控制器/处理器459实施L2层的功能。控制器/处理器459可与存储程序代码和数据的存储器460相关联。存储器460可称为计算机可读媒体。在从所述第二通信设备410到所述第二通信设备450的传输中，控制器/处理器459提供输送与逻辑信道之间的多路分用、包重组装、解密、标头解压缩、控制信号处理以恢复来自核心网络的上层数据包。随后将上层数据包提供到L2层之上的所有协议层。也可将各种控制信号提供到L3以用于L3处理。
在从所述第一通信设备450到所述第二通信设备410的传输中，在所述第一通信设备450处，使用数据源467来将上层数据包提供到控制器/处理器459。数据源467表示L2层之上的所有协议层。类似于在从所述第二通信设备410到所述第一通信设备450的传输中所描述所述第二通信设备410处的发送功能，控制器/处理器459基于无线资源分配来实施标头压缩、加密、包分段和重排序以及逻辑与输送信道之间的多路复用，实施用于用户平面和控制平面的L2层功能。控制器/处理器459还负责丢失包的重新发射，和到所述第二通信设备410的信令。发射处理器468执行调制映射、信道编码处理，多天线发射处理器457进行数字多天线空间预编码，包括基于码本的预编码和基于非码本的预编码，和波束赋型处理，随后发射处理器468将产生的空间流调制成多载波/单载波符号流，在多天线发射处理器457中经过模拟预编码/波束赋型操作后再经由发射器454提供到不同天线452。每一发射器454首先把多天线发射处理器457提供的基带符号流转化成射频符号流，再提供到天线452。
在从所述第一通信设备450到所述第二通信设备410的传输中，所述第二通信设备410处的功能类似于在从所述第二通信设备410到所述第一通信设备450的传输中所描述的所述第一通信设备450处的接收功能。每一接收器418通过其相应天线420接收射频信号，把接收到的射频信号转化成基带信号，并把基带信号提供到多天线接收处理器472和接收处理器470。接收处理器470和多天线接收处理器472共同实施L1层的功能。控制器/处理器475实施L2层功能。控制器/处理器475可与存储程序代码和数据的存储器476相关联。存储器476可称为计算机可读媒体。在从所述第一通信设备450到所述第二通信设备410的传输中，控制器/处理器475提供输送与逻辑信道之间的多路分用、包重组装、解密、标头解压缩、控制信号处理以恢复来自UE450的上层数据包。来自控制器/处理器475的上层数据包可被提供到核心网络。
作为一个实施例，所述第一通信设备450装置包括：至少一个处理器以及至少一个存储器，所述至少一个存储器包括计算机程序代码；所述至少一个存储器和所述计算机程序代码 被配置成与所述至少一个处理器一起使用，所述第一通信设备450装置至少：接收第一信令、第二信令和第三信令，所述第一信令指示第一时段集合，所述第二信令指示第一时间窗，所述第一时段集合中的任一时段是所述第一时间窗中的一个时段，所述第一时间窗中每个时段的定时参考所述第一节点侧的接收定时，所述第三信令指示第一时间长度；以及根据第一目标时段的定时在所述第一目标时段中发送第一信号，所述第一目标时段延迟第一时间长度之后是第一参考时段，所述第一参考时段是第一时段集合中的一个时段；所述第一信号包括第一信息，所述第一信息指示第一索引，所述第一索引与第二参考时段在所述第一时间窗中的索引相同，所述第二参考时段与所述第一目标时段在时域有交叠，所述第一参考时段与所述第一目标时段在时域没有交叠；所述第二参考时段是所述第一时间窗中的一个时段。
作为一个实施例，所述第一通信设备450包括：一种存储计算机可读指令程序的存储器，所述计算机可读指令程序在由至少一个处理器执行时产生动作，所述动作包括：接收第一信令、第二信令和第三信令，所述第一信令指示第一时段集合，所述第二信令指示第一时间窗，所述第一时段集合中的任一时段是所述第一时间窗中的一个时段，所述第一时间窗中每个时段的定时参考所述第一节点侧的接收定时，所述第三信令指示第一时间长度；以及根据第一目标时段的定时在所述第一目标时段中发送第一信号，所述第一目标时段延迟第一时间长度之后是第一参考时段，所述第一参考时段是第一时段集合中的一个时段；所述第一信号包括第一信息，所述第一信息指示第一索引，所述第一索引与第二参考时段在所述第一时间窗中的索引相同，所述第二参考时段与所述第一目标时段在时域有交叠，所述第一参考时段与所述第一目标时段在时域没有交叠；所述第二参考时段是所述第一时间窗中的一个时段。
作为一个实施例，所述第二通信设备410装置包括：至少一个处理器以及至少一个存储器，所述至少一个存储器包括计算机程序代码；所述至少一个存储器和所述计算机程序代码被配置成与所述至少一个处理器一起使用。所述第二通信设备410装置至少：发送第一信令、第二信令和第三信令，所述第一信令指示第一时段集合，所述第二信令指示第一时间窗，所述第一时段集合中的任一时段是所述第一时间窗中的一个时段，所述第一时间窗中每个时段的定时参考第一节点侧的接收定时，所述第三信令指示第一时间长度；所述第一信令的接收者包括所述第一节点，所述第一节点根据第一目标时段的定时在所述第一目标时段中发送第一信号，所述第一目标时段延迟所述第一时间长度之后是第一参考时段，所述第一参考时段是第一时段集合中的一个时段；所述第一信号包括第一信息，所述第一信息指示第一索引，所述第一索引与第二参考时段在所述第一时间窗中的索引相同，所述第二参考时段与所述第一目标时段在时域有交叠，所述第一参考时段与所述第一目标时段在时域没有交叠；所述第二参考时段是所述第一时间窗中的一个时段。
作为一个实施例，所述第二通信设备410装置包括：一种存储计算机可读指令程序的存储器，所述计算机可读指令程序在由至少一个处理器执行时产生动作，所述动作包括：发送第一信令、第二信令和第三信令，所述第一信令指示第一时段集合，所述第二信令指示第一时间窗，所述第一时段集合中的任一时段是所述第一时间窗中的一个时段，所述第一时间窗中每个时段的定时参考第一节点侧的接收定时，所述第三信令指示第一时间长度；所述第一信令的接收者包括所述第一节点，所述第一节点根据第一目标时段的定时在所述第一目标时段中发送第一信号，所述第一目标时段延迟所述第一时间长度之后是第一参考时段，所述第一参考时段是第一时段集合中的一个时段；所述第一信号包括第一信息，所述第一信息指示第一索引，所述第一索引与第二参考时段在所述第一时间窗中的索引相同，所述第二参考时段与所述第一目标时段在时域有交叠，所述第一参考时段与所述第一目标时段在时域没有交叠；所述第二参考时段是所述第一时间窗中的一个时段。
作为一个实施例，所述第二通信设备410装置包括：至少一个处理器以及至少一个存储器，所述至少一个存储器包括计算机程序代码；所述至少一个存储器和所述计算机程序代码被配置成与所述至少一个处理器一起使用。所述第二通信设备410装置至少：根据第一目标时段的定时在第一目标时段中接收第一信号，所述第一目标时段延迟第一时间长度之后是第 一参考时段，所述第一参考时段是第一时段集合中的一个时段；所述第一信号的发送者是第一节点；所述第一节点通过接收第一信令确定所述第一时段集合，且通过接收第二信令确定第一时间窗，所述第一时段集合中的任一时段是所述第一时间窗中的一个时段，所述第一时间窗中每个时段的定时参考所述第一节点侧的接收定时，且所述第一节点通过接收第三信令确定所述第一时间长度；所述第一信号包括第一信息，所述第一信息指示第一索引，所述第一索引与第二参考时段在所述第一时间窗中的索引相同，所述第二参考时段与所述第一目标时段在时域有交叠，所述第一参考时段与所述第一目标时段在时域没有交叠；所述第二参考时段是所述第一时间窗中的一个时段。
作为一个实施例，所述第二通信设备410装置包括：一种存储计算机可读指令程序的存储器，所述计算机可读指令程序在由至少一个处理器执行时产生动作，所述动作包括：根据第一目标时段的定时在第一目标时段中接收第一信号，所述第一目标时段延迟第一时间长度之后是第一参考时段，所述第一参考时段是第一时段集合中的一个时段；所述第一信号的发送者是第一节点；所述第一节点通过接收第一信令确定所述第一时段集合，且通过接收第二信令确定第一时间窗，所述第一时段集合中的任一时段是所述第一时间窗中的一个时段，所述第一时间窗中每个时段的定时参考所述第一节点侧的接收定时，且所述第一节点通过接收第三信令确定所述第一时间长度；所述第一信号包括第一信息，所述第一信息指示第一索引，所述第一索引与第二参考时段在所述第一时间窗中的索引相同，所述第二参考时段与所述第一目标时段在时域有交叠，所述第一参考时段与所述第一目标时段在时域没有交叠；所述第二参考时段是所述第一时间窗中的一个时段。
作为一个实施例，所述第一通信设备450对应本申请中的第一节点。
作为一个实施例，所述第二通信设备410对应本申请中的第二节点。
作为一个实施例，所述第二通信设备410对应本申请中的第三节点。
作为一个实施例，所述第一通信设备450是一个UE。
作为一个实施例，所述第二通信设备410是一个基站。
作为一个实施例，所述第二通信设备410是一个UE。
作为一个实施例，所述天线452，所述接收器454，所述多天线接收处理器458，所述接收处理器456，所述控制器/处理器459中的至少之一被用于接收第一信令、第二信令和第三信令；所述天线420，所述发射器418，所述多天线发射处理器471，所述发射处理器416，所述控制器/处理器475中的至少之一被用于发送第一信令、第二信令和第三信令。
作为一个实施，所述天线452，所述发射器454，所述多天线发射处理器457，所述发射处理器468，所述控制器/处理器459中的至少之一被用于根据第一目标时段的定时在所述第一目标时段中发送第一信号；所述天线420，所述接收器418，所述多天线接收处理器472，所述接收处理器470，所述控制器/处理器475中的至少之一被用于根据第一目标时段的定时在所述第一目标时段中接收第一信号。
作为一个实施，所述天线452，所述发射器454，所述多天线发射处理器457，所述发射处理器468，所述控制器/处理器459中的至少之一被用于发送第二信号；所述天线420，所述接收器418，所述多天线接收处理器472，所述接收处理器470，所述控制器/处理器475中的至少之一被用于接收第二信号。
作为一个实施，所述天线452，所述发射器454，所述多天线发射处理器457，所述发射处理器468，所述控制器/处理器459中的至少之一被用于发送目标信号；所述天线420，所述接收器418，所述多天线接收处理器472，所述接收处理器470，所述控制器/处理器475中的至少之一被用于接收目标信号。
作为一个实施，所述天线452，所述发射器454，所述多天线发射处理器457，所述发射处理器468，所述控制器/处理器459中的至少之一被用于发送第三信号和第四信号；所述天线420，所述接收器418，所述多天线接收处理器472，所述接收处理器470，所述控制器/处理器475中的至少之一被用于接收第三信号和第四信号。
作为一个实施例，所述天线452，所述接收器454，所述多天线接收处理器458，所述接收处理器456，所述控制器/处理器459中的至少之一被用于接收第五信令；所述天线420，所述发射器418，所述多天线发射处理器471，所述发射处理器416，所述控制器/处理器475中的至少之一被用于发送第五信令。
作为一个实施例，所述天线452，所述接收器454，所述多天线接收处理器458，所述接收处理器456，所述控制器/处理器459中的至少之一被用于接收同步信令；所述天线420，所述发射器418，所述多天线发射处理器471，所述发射处理器416，所述控制器/处理器475中的至少之一被用于发送同步信令。
实施例5
实施例5示例了一个第一信令的流程图，如附图5所示。在附图5中，第一节点U1与第二节点N2之间通过Uu链路进行通信，第一节点U1与第三节点U3之间通过副链路进行通信；图中方框F0中标注的步骤是可选的。
对于 第一节点U1，在步骤S10中接收同步信号；在步骤S11中接收第一信令、第二信令和第三信令；在步骤S12中根据第一目标时段的定时在所述第一目标时段中发送第一信号；在步骤S13中发送第二信号；在步骤S14中发送目标信号；在步骤S15中发送第三信号和第四信号；在步骤S16中接收第五信令。
对于 第二节点N2，在步骤S20中发送同步信号；在步骤S21中发送第一信令、第二信令和第三信令。
对于 第三节点U3，在步骤30中根据第一目标时段的定时在所述第一目标时段中接收第一信号；在步骤S31中接收第二信号；在步骤S32中接收目标信号；在步骤S33中接收第三信号和第四信号；在步骤S34中发送第五信令。
实施例5中，所述第一信令指示第一时段集合，所述第二信令指示第一时间窗，所述第一时段集合中的任一时段是所述第一时间窗中的一个时段，所述第一时间窗中每个时段的定时参考所述第一节点侧的接收定时，所述第三信令指示第一时间长度；所述第一目标时段延迟第一时间长度之后是第一参考时段，所述第一参考时段是第一时段集合中的一个时段；所述第一信号包括第一信息，所述第一信息指示第一索引，所述第一索引与第二参考时段在所述第一时间窗中的索引相同，所述第二参考时段与所述第一目标时段在时域有交叠，所述第一参考时段与所述第一目标时段在时域没有交叠；所述第二参考时段是所述第一时间窗中的一个时段；所述第二信号包括第二信息，所述第二信息被用于确定第二时间长度；所述第二时间长度与所述第二参考时段在时域的起始时刻与所述第一目标时段在时域的起始时刻之间的时间间隔有关；所述目标信号从第二时间窗中指示第二时段集合，所述第一目标时段是所述第二时间窗中的一个时段，所述第一目标时段在所述第二时间窗中的索引是所述第一索引；所述第三信号和所述第四信号的发送均参考在所述第二时段集合中的定时，所述第五信令的接收参考在所述第二时段集合中的定时，所述第三信号包括所述第四信号的配置信息，所述第五信号被用于确定所述第四信号是否被正确接收；所述同步信号在所述第一节点的接收起始时刻是所述同步信号所属的时段中所述同步信号所占用的多载波符号的起始时刻。
作为一个实施例，所述第二时间长度的单位是毫秒。
作为一个实施例，所述第二时间长度的单位是一个多载波符号所占用的时间长度。
作为一个实施例，所述第二时间长度的单位是微秒。
作为一个实施例，所述第二时间长度的单位是1/30720毫秒。
作为一个实施例，所述第二时间长度的单位是1/Y毫秒，所述Y是30720的正整数倍。
作为一个实施例，所述第二时间长度等于所述第二参考时段在时域的起始时刻与所述第一目标时段在时域的起始时刻之间的时间间隔。
作为一个实施例，所述第二时间长度等于正值表示提前，或者所述第二时间长度等于负值表示延迟。
作为一个实施例，所述第二时间长度等于正值表示延迟，或者所述第二时间长度等于负值表示提前。
作为一个实施例，所述第二信号在副链路上传输。
作为一个实施例，所述目标信号在副链路上传输。
作为一个实施例，所述第二信号在PSBCH上被发送。
作为一个实施例，所述第二信号在PSDCH上被发送。
作为一个实施例，所述第二信息在SL-BCH上被发送。
作为一个实施例，所述第二信息在MasterInformationBlock-SL上被发送。
作为一个实施例，所述第二时间窗是按照所述第一节点U1的发送定时确定的副链路上的定时。
作为一个实施例，所述第三节点U3根据所述第一索引确定所述第一节点U1到所述第三节点U3的无线信号的接收定时。
作为一个实施例，所述第三节点U3根据所述第一索引确定所述第三节点U3到所述第一节点U1的无线信号的发送定时。
作为一个实施例，所述第二时段集合通过一个bitmap指示。
作为一个实施例，所述第二时段集合中的任一时段在时间域移动所述第二时间长度之后与所述第一时段集合中的一个时段重叠，所述第二时间长度不超过一个时段的长度。
作为一个实施例，所述第二时段集合中的任一时段在时间域移动所述第二时间长度之后与所述第一时段集合中的一个时段重叠，所述第二时间长度超过一个时段的长度。
作为一个实施例，所述第二时间窗中的任一时段在时间域移动所述第二时间长度之后与所述第一时间窗中的一个时段重叠，所述第二时间长度不超过一个时段的长度。
作为一个实施例，所述第二时段集合中的时段与所述第一时段集合中的时段一一对应，所述第二时段集合中的任一时段到所述第一时段集合中的相应时段之间的时间间隔与所述第一目标时段到所述第二参考时段的时间间隔相同。
作为一个实施例，所述第三信号是SCI(Sidelink Control Information，副链路控制信息)。
作为一个实施例，所述第三信号所占用的物理层信道包括PSCCH。
作为一个实施例，所述第四信号所占用的物理层信道包括PSSCH(Physical Sidelink Shared Channel，物理副链路共享信道)。
作为一个实施例，所述第五信令所占用的物理层信道包括PSFCH。
作为一个实施例，所述第三信号所述包括的所述第四信号的配置信息包括所述第四信号所占用的时域资源、所述第四信号所占用的频域资源、所述第四信号所采用的MCS(Modulation and Coding Status，调制编码方式)、所述第四信号所采用的RV(Redundancy Version，冗余版本)、所述第四信号所对应的NDI(New Data Indicator，新数据指示)或所述第四信号所采用的HARQ进程号中的至少之一。
作为一个实施例，所述第三信号和所述第四信号的发送均参考在所述第二时段集合中的定时的意思包括：发送所述第三信号所占用的多载波符号的边界与所述第二时段集合中的多载波符号的边界对齐，且发送所述第四信号所占用的多载波符号的边界与所述第二时段集合中的多载波符号的边界对齐。
作为一个实施例，所述第三信号和所述第四信号的发送均参考在所述第二时段集合中的定时的意思包括：所述第三信号在所述第二时段集合中的第n个时段被发送，且所述第三信号指示所述第四信号在所述第三信号所占用的时段后的第k个时段被发送，则所述第四信号在所述第二时段集合中的第n+k个时段被发送；所述n和所述k均是非负整数。
作为一个实施例，所述第五信令的接收参考在所述第二时段集合中的定时的意思包括：接收所述第五信号所占用的多载波符号的边界与所述第二时段集合中的多载波符号的边界对齐。
作为一个实施例，所述第五信令的接收参考在所述第二时段集合中的定时的意思包括：所述第三信号在所述第二时段集合中的第n个时段被发送，且所述第五信号在所述第三信号所占用的时段后的第k1个时段被接收，则所述第一节点U1在所述第二时段集合中的第n+k1个时段接收所述第五信号；所述n和所述k1均是非负整数。
作为一个实施例，所述第五信令的接收参考在所述第二时段集合中的定时的意思包括：所述第四信号在所述第二时段集合中的第n1个时段被发送，且所述第五信号在所述第四信号所占用的时段后的第k2个时段被接收，则所述第一节点U1在所述第二时段集合中的第n1+k2个时段接收所述第五信号；所述n1和所述k2均是非负整数。
作为一个实施例，所述同步信号包括PSS(Primary Synchronization Signal，主同步信号)和SSS(Secondary Synchronization Signal，辅同步信号)。
作为一个实施例，所述同步信号包括伪随机序列。
作为一个实施例，所述同步信号包括Zadoff-Chu序列。
作为一个实施例，所述第一时间窗被用于确定所述第一节点U1的下行时隙同步，所述同步信号被用于确定所述第一节点U1的下行多载波符号同步。
作为一个实施例，所述第一时间窗被用于确定所述第一节点U1的下行子帧同步，所述同步信号被用于确定所述第一节点U1的下行多载波符号同步。
作为一个实施例，所述第一时间窗被用于确定所述第一节点U1的下行无线帧同步，所述同步信号被用于确定所述第一节点U1的下行多载波符号同步。
作为一个实施例，所述第一时间窗是按照所述第二节点N2自身的定时确定的。
作为一个实施例，所述第一时间窗所包括的时段的序号已按照第一距离所对应的传输延迟进行过补偿，所述第一距离是所述第二节点N2到近地点的距离。
作为该实施例的一个子实施例，上述补偿的意思包括：所述第一时间窗中的同步信号在所述第一节点U1侧认为的第m个时隙中被检测到，且所述第一距离对应的传输延迟的量化值是L个时隙，则所述第二节点N2在所述第m-L个时隙发送所述同步信号。
作为该实施例的一个子实施例，上述补偿的意思包括：所述第一时间窗中的同步信号在所述第二节点N2侧中的第m个时隙中被发送，且所述第一距离对应的传输延迟的量化值是L个时隙，则所述第二节点N2在所述第m+L个时隙中检测到所述同步信号，且所述第二节点认为这是下行的第m个时隙。
作为一个实施例，所述第二时间窗包括K1个时段，所述K1是正整数。
作为一个实施例，所述第二时间窗中每个时段的长度相同。
作为一个实施例，所述第二时间窗中每个时段中包括14个多载波符号。
作为一个实施例，所述第二时间窗中每个时段的持续时间是1毫秒。
作为一个实施例，所述第二时间窗中每个时段的持续时间是0.5毫秒。
作为一个实施例，所述第二时间窗中每个时段是一个子帧。
作为一个实施例，所述第二时间窗中每个时段是一个时隙。
作为一个实施例，所述第二信号是无线信号。
作为一个实施例，所述第二信号是基带信道。
作为一个实施例，所述第二时间窗中每个时段是一个时隙。
作为一个实施例，所述目标信号是无线信号。
作为一个实施例，所述目标信号是基带信道。
实施例6
实施例6示例了一个第一时间长度的示意图，如附图6所示。在附图6中，上方的连续的时段对应本申请中的所述第二节点自身的定时，即第一节点Uu口的下行定时；下方的连续的时段对应本申请中的所述第一节点在向所述第二节点进行发送时的发送定时，即第一节点Uu口的上行定时；图中标注的时间偏差即对应所述第一时间长度；图中每个矩形格表示一个时段，其中的字母对应时段的序号。
作为一个实施例，所述第一时间长度等于第一时间值和第二时间值的和。
作为该实施例的一个子实施例，所述第一时间值与所述第二节点到所述第一节点之间的距离有关。
作为该实施例的一个子实施例，所述第一时间值等于2倍的所述第一节点到所述第二节点的传输延迟。
作为该子实施例的一个附属实施例，所述TA不包括所述第二节点到地面的距离对应的TA。
作为该子实施例的一个附属实施例，所述TA等于2倍的所述第二节点到所述第一节点之间的距离减去所述第二节点到地面的垂直距离后的传输延迟。
作为该实施例的一个子实施例，所述第二时间值等于0。
作为该实施例的一个子实施例，所述第二时间值等于624倍的采样时间。
作为该实施例的一个子实施例，所述第一时间值等于TS 36.211中的N TA与T S的乘积。
作为该实施例的一个子实施例，所述第二时间值等于TS 36.211中的624与T S的乘积。
作为该实施例的一个子实施例，所述第二时间值与所述第一节点的上下行切换时间有关。
实施例7
实施例7示例了一个第一时段集合和第二时段集合的示意图，如附图7所示。在附图7中，所述第一时段集合包括K1个时段，所述第二时段集合包括K1个时段，所述第二时段集合中的所述K1时段与所述第一时段集合中的所述K1个时段一一对应；所述第二时段集合所包括的所述K1个时段中的任一时段到所述第一时段集合所包括的所述K1个时段中的相应时段之间的时间间隔等于给定时间值。如图中所示，第一排对应所述第一节点与所述第二节点之间的下行定时，第二排对应所述第一节点与所述第三节点之间的V2X定时；图中矩形框表示时段，加粗虚线框标注的是所述第一时段集合，斜线填充的是所述第二时段集合。
作为一个实施例，所给定时间值与本申请中所述第一目标时段到本申请中的所述第二参考时段的时间间隔相同。
作为一个实施例，所述给定时间值等于本申请中的所述第二时间长度。
实施例8
实施例8示例了一个第一目标时段和第二参考时段的示意图，如附图8所示。图中所示的第一排对应第二节点自身定时，第二排对应第一节点按照第二节点到第一节点的下行确定的下行定时，第三排对应第一节点按照第一节点到第二节点的上行确定的上行定时，第四排对应第一节点向第三节点广播的用于V2X的定时；图中所示的第二参考时段是第一时间窗中与所述第目标时段交叠的两个时段中较早的一个时段；图中斜线填充的是第二参考时段，图中所示的斜方格填充的是第一目标时段；图中所示的第二时间长度等于所述第二参考时段在时域的起始时刻与所述第一目标时段在时域的起始时刻之间的时间间隔，图中所示的所述第一目标时段在第一节点到第三节点之间的V2X传输的定时中的索引是本申请中的第一索引。
作为一个实施例，图中按照第二节点自身的定时被标号为3的时段属于本申请中的所述第一时段集合中的一个时段。
作为一个实施例，图中粗实线标注的时段对应第一节点用作V2X传输的时段。
作为一个实施例，所述第一目标时段是一个子帧，所述第一索引被用于指示所述第一目标时段在本申请中的第二时间窗中的子帧序号。
作为一个实施例，所述第一目标时段是一个时隙，所述第一索引被用于指示所述第一目标时段在本申请中的第二时间窗中的时隙序号。
作为一个实施例，所述第一目标时段属于第一无线帧，所述第一索引包括第一子索引，所述第一子索引被用于指示所述第一无线帧在本申请中的第二时间窗中的无线帧序号。
作为一个实施例，所述第一索引是个非负整数。
实施例9
实施例9示例了另一个第一目标时段和第二参考时段的示意图，如附图8所示。图中所示的第一排对应第二节点自身定时，第二排对应第一节点按照第二节点到第一节点的下行确定的下行定时，第三排对应第一节点按照第一节点到第二节点的上行确定的上行定时，第四排对应第一节点向第三节点广播的用于V2X的定时；图中所示的第二参考时段是第一时间窗中与所述第目标时段交叠的两个时段中交叠时间较长的一个时段；图中斜线填充的是第二参考时段，图中所示的斜方格填充的是第一目标时段；图中所示的第二时间长度等于所述第二参考时段在时域的起始时刻与所述第一目标时段在时域的起始时刻之间的时间间隔，图中所示的所述第一目标时段在第一节点到第三节点之间的V2X传输的定时中的索引是本申请中的第一索引。
作为一个实施例，图中按照第二节点自身的定时被标号为3的时段属于本申请中的所述第一时段集合中的一个时段。
作为一个实施例，图中粗实线标注的时段对应第一节点用作V2X传输的时段。
作为一个实施例，所述第一目标时段是一个子帧，所述第一索引被用于指示所述第一目标时段在本申请中的第二时间窗中的子帧序号。
作为一个实施例，所述第一目标时段是一个时隙，所述第一索引被用于指示所述第一目标时段在本申请中的第二时间窗中的时隙序号。
作为一个实施例，所述第一目标时段属于第一无线帧，所述第一索引包括第一子索引，所述第一子索引被用于指示所述第一无线帧在本申请中的第二时间窗中的无线帧序号。
作为一个实施例，所述第一索引是个非负整数。
实施例10
实施例10示例了一个应用场景的示意图，如附图10所示。在附图10中，图中所示的第一节点和第二节点之间进行Uu链路的上行传输，而第一节点同时与第三节点进行V2X通信；所述第二节点通过给覆盖下的终端设备分配V2X时频资源，以实现对V2X通信的控制的。
作为一个实施例，所述覆盖下的终端设备包括所述第一节点。
作为一个实施例，所述覆盖下的终端设备包括所述第三节点。
作为一个实施例，所述第三节点能够接收到所述第三信令，所述第三信令被所述第三节点用于确定所述第一时间长度。
作为一个实施例，所述第三节点根据所述第一时间长度确定所述第一目标时段的位置。
作为一个实施例，所述第一节点在所述第一目标时段中发送用于V2X同步的同步信号，所述第三节点在所述第一目标时段中盲检测所述用于V2X同步的同步信号。
实施例11
实施例11示例了一个第一节点中的结构框图，如附图11所示。附图11中，第一节点1100包括第一接收机1101和第一收发机1102。
第一接收机1101，接收第一信令、第二信令和第三信令，所述第一信令指示第一时段集合，所述第二信令指示第一时间窗，所述第一时段集合中的任一时段是所述第一时间窗中的一个时段，所述第一时间窗中每个时段的定时参考所述第一节点侧的接收定时，所述第三信令指示第一时间长度；
第一收发机1102，根据第一目标时段的定时在所述第一目标时段中发送第一信号，所述第一目标时段延迟第一时间长度之后是第一参考时段，所述第一参考时段是第一时段集合中的一个时段；
实施例11中，所述第一信号包括第一信息，所述第一信息指示第一索引，所述第一索引与第二参考时段在所述第一时间窗中的索引相同，所述第二参考时段与所述第一目标时段在时域有交叠，所述第一参考时段与所述第一目标时段在时域没有交叠；所述第二参考时段是所述第一时间窗中的一个时段。
作为一个实施例，所述第一收发机1102发送第二信号；所述第二信号包括第二信息，所述第二信息被用于确定第二时间长度；所述第二时间长度与所述第二参考时段在时域的起始时刻与所述第一目标时段在时域的起始时刻之间的时间间隔有关。
作为一个实施例，所述第一收发机1102发送目标信号；所述目标信号从第二时间窗中指示第二时段集合，所述第一目标时段是所述第二时间窗中的一个时段，所述第一目标时段在所述第二时间窗中的索引是所述第一索引。
作为一个实施例，所述第一收发机1102发送第三信号和第四信号，且所述第一收发机接收第五信令；所述第三信号和所述第四信号的发送均参考在所述第二时段集合中的定时，所述第五信令的接收参考在所述第二时段集合中的定时，所述第三信号包括所述第四信号的配置信息，所述第五信号被用于确定所述第四信号是否被正确接收。
作为一个实施例，所述第一接收机1101接收同步信号；所述同步信号在所述第一节点的接收起始时刻是所述同步信号所属的时段中所述同步信号所占用的多载波符号的起始时刻。
作为一个实施例，所述第一接收机1101包括实施例4中的天线452、接收器454、多天线接收处理器458、接收处理器456、控制器/处理器459中的至少前4者。
作为一个实施例，所述第一收发机1102包括实施例4中的天线452、发射器454、多天线发射处理器457、发射处理器468、控制器/处理器459中的至少前4者。
实施例12
实施例12示例了一个第二节点中的结构框图，如附图12所示。附图12中，第二节点1200包括第一发射机1201。
第一发射机1201，发送第一信令、第二信令和第三信令，所述第一信令指示第一时段集合，所述第二信令指示第一时间窗，所述第一时段集合中的任一时段是所述第一时间窗中的一个时段，所述第一时间窗中每个时段的定时参考第一节点侧的接收定时，所述第三信令指示第一时间长度；
实施例12中，所述第一信令的接收者包括所述第一节点，所述第一节点根据第一目标时段的定时在所述第一目标时段中发送第一信号，所述第一目标时段延迟所述第一时间长度之后是第一参考时段，所述第一参考时段是第一时段集合中的一个时段；所述第一信号包括第一信息，所述第一信息指示第一索引，所述第一索引与第二参考时段在所述第一时间窗中的索引相同，所述第二参考时段与所述第一目标时段在时域有交叠，所述第一参考时段与所述第一目标时段在时域没有交叠；所述第二参考时段是所述第一时间窗中的一个时段。
作为一个实施例，所述第一发射机1201发送同步信号；所述同步信号在所述第一节点的接收起始时刻是所述同步信号所属的时段中所述同步信号所占用的多载波符号的起始时刻。
作为一个实施例，所述第一发射机1201包括实施例4中的天线420、发射器418、多天线发射处理器471、发射处理器416、控制器/处理器475中的至少前4者。
实施例13
实施例13示例了一个第三节点中的结构框图，如附图13所示。附图13中，第三节点1300包括第二收发机1301。
第二收发机1301，根据第一目标时段的定时在第一目标时段中接收第一信号，所述第一目标时段延迟第一时间长度之后是第一参考时段，所述第一参考时段是第一时段集合中的一个时段；
实施例13中，所述第一信号的发送者是第一节点；所述第一节点通过接收第一信令确定所述第一时段集合，且通过接收第二信令确定第一时间窗，所述第一时段集合中的任一时段是所述第一时间窗中的一个时段，所述第一时间窗中每个时段的定时参考所述第一节点侧的接收定时，且所述第一节点通过接收第三信令确定所述第一时间长度；所述第一信号包括第一信息，所述第一信息指示第一索引，所述第一索引与第二参考时段在所述第一时间窗中的索引相同，所述第二参考时段与所述第一目标时段在时域有交叠，所述第一参考时段与所述 第一目标时段在时域没有交叠；所述第二参考时段是所述第一时间窗中的一个时段。
作为一个实施例，所述第二收发机1301接收第二信号；所述第二信号包括第二信息，所述第二信息被用于确定第二时间长度；所述第二时间长度与所述第二参考时段在时域的起始时刻与所述第一目标时段在时域的起始时刻之间的时间间隔有关。
作为一个实施例，所述第二收发机1301接收目标信号；所述目标信号从第二时间窗中指示第二时段集合，所述第一目标时段是所述第二时间窗中的一个时段，所述第一目标时段在所述第二时间窗中的索引是所述第一索引。
作为一个实施例，所述第二收发机1301接收第三信号和第四信号；且所述第二收发机1301发送第五信令；所述第三信号和所述第四信号的发送均参考在所述第二时段集合中的定时，所述第五信令的接收参考在所述第二时段集合中的定时，所述第三信号包括所述第四信号的配置信息，所述第五信号被用于确定所述第四信号是否被正确接收。
作为一个实施例，所述第二收发机1301包括实施例4中的天线420、发射器/接收器418、多天线发射处理器471、多天线接收处理器472、发射处理器416、接收处理器470、控制器/处理器475中的至少前6者。
本领域普通技术人员可以理解上述方法中的全部或部分步骤可以通过程序来指令相关硬件完成，所述程序可以存储于计算机可读存储介质中，如只读存储器，硬盘或者光盘等。可选的，上述实施例的全部或部分步骤也可以使用一个或者多个集成电路来实现。相应的，上述实施例中的各模块单元，可以采用硬件形式实现，也可以由软件功能模块的形式实现，本申请不限于任何特定形式的软件和硬件的结合。本申请中的第一节点和第二节点包括但不限于手机，平板电脑，笔记本，上网卡，低功耗设备，eMTC设备，NB-IoT设备，车载通信设备，交通工具，车辆，RSU，飞行器，飞机，无人机，遥控飞机等无线通信设备。本申请中的基站包括但不限于宏蜂窝基站，微蜂窝基站，家庭基站，中继基站，eNB，gNB，传输接收节点TRP，GNSS，中继卫星，卫星基站，空中基站，RSU等无线通信设备。
以上所述，仅为本申请的较佳实施例而已，并非用于限定本申请的保护范围。凡在本申请的精神和原则之内，所做的任何修改，等同替换，改进等，均应包含在本申请的保护范围之内。

Claims (10)

  1. 一种被用于无线通信的第一节点，其特征在于包括：
    第一接收机，接收第一信令、第二信令和第三信令，所述第一信令指示第一时段集合，所述第二信令指示第一时间窗，所述第一时段集合中的任一时段是所述第一时间窗中的一个时段，所述第一时间窗中每个时段的定时参考所述第一节点侧的接收定时，所述第三信令指示第一时间长度；
    第一收发机，根据第一目标时段的定时在所述第一目标时段中发送第一信号，所述第一目标时段延迟第一时间长度之后是第一参考时段，所述第一参考时段是第一时段集合中的一个时段；
    其中，所述第一信号包括第一信息，所述第一信息指示第一索引，所述第一索引与第二参考时段在所述第一时间窗中的索引相同，所述第二参考时段与所述第一目标时段在时域有交叠，所述第一参考时段与所述第一目标时段在时域没有交叠；所述第二参考时段是所述第一时间窗中的一个时段。
  2. 根据权利要求1所述的第一节点，其特征在于，所述第一收发机发送第二信号；所述第二信号包括第二信息，所述第二信息被用于确定第二时间长度；所述第二时间长度与所述第二参考时段在时域的起始时刻与所述第一目标时段在时域的起始时刻之间的时间间隔有关。
  3. 根据权利要求1或2所述的第一节点，其特征在于，所述第一收发机发送目标信号；所述目标信号从第二时间窗中指示第二时段集合，所述第一目标时段是所述第二时间窗中的一个时段，所述第一目标时段在所述第二时间窗中的索引是所述第一索引。
  4. 根据权利要求3所述的第一节点，其特征在于，所述第一收发机发送第三信号和第四信号，且所述第一收发机接收第五信令；所述第三信号和所述第四信号的发送均参考在所述第二时段集合中的定时，所述第五信令的接收参考在所述第二时段集合中的定时，所述第三信号包括所述第四信号的配置信息，所述第五信号被用于确定所述第四信号是否被正确接收。
  5. 根据权利要求1至4中任一权利要求所述的第一节点，其特征在于，所述第一接收机接收同步信号；所述同步信号在所述第一节点的接收起始时刻是所述同步信号所属的时段中所述同步信号所占用的多载波符号的起始时刻。
  6. 一种被用于无线通信的第二节点，其特征在于包括：
    第一发射机，发送第一信令、第二信令和第三信令，所述第一信令指示第一时段集合，所述第二信令指示第一时间窗，所述第一时段集合中的任一时段是所述第一时间窗中的一个时段，所述第一时间窗中每个时段的定时参考第一节点侧的接收定时，所述第三信令指示第一时间长度；
    其中，所述第一信令的接收者包括所述第一节点，所述第一节点根据第一目标时段的定时在所述第一目标时段中发送第一信号，所述第一目标时段延迟所述第一时间长度之后是第一参考时段，所述第一参考时段是第一时段集合中的一个时段；所述第一信号包括第一信息，所述第一信息指示第一索引，所述第一索引与第二参考时段在所述第一时间窗中的索引相同，所述第二参考时段与所述第一目标时段在时域有交叠，所述第一参考时段与所述第一目标时段在时域没有交叠；所述第二参考时段是所述第一时间窗中的一个时段。
  7. 一种被用于无线通信的第三节点，其特征在于包括：
    第二收发机，根据第一目标时段的定时在第一目标时段中接收第一信号，所述第一目标时段延迟第一时间长度之后是第一参考时段，所述第一参考时段是第一时段集合中的一个时段；
    其中，所述第一信号的发送者是第一节点；所述第一节点通过接收第一信令确定所述第一时段集合，且通过接收第二信令确定第一时间窗，所述第一时段集合中的任一时段是所述第一时间窗中的一个时段，所述第一时间窗中每个时段的定时参考所述第一节点侧的接收定时，且所述第一节点通过接收第三信令确定所述第一时间长度；所述第一信号包括第一信息，所述第一信息指示第一索引，所述第一索引与第二参考时段在所述第一时间窗中的索引相同，所述第二参考时段与所述第一目标时段在时域有交叠，所述第一参考时段与所述第一目标时 段在时域没有交叠；所述第二参考时段是所述第一时间窗中的一个时段。
  8. 一种被用于无线通信的第一节点中的方法，其特征在于包括：
    接收第一信令、第二信令和第三信令，所述第一信令指示第一时段集合，所述第二信令指示第一时间窗，所述第一时段集合中的任一时段是所述第一时间窗中的一个时段，所述第一时间窗中每个时段的定时参考所述第一节点侧的接收定时，所述第三信令指示第一时间长度；
    根据第一目标时段的定时在所述第一目标时段中发送第一信号，所述第一目标时段延迟第一时间长度之后是第一参考时段，所述第一参考时段是第一时段集合中的一个时段；
    其中，所述第一信号包括第一信息，所述第一信息指示第一索引，所述第一索引与第二参考时段在所述第一时间窗中的索引相同，所述第二参考时段与所述第一目标时段在时域有交叠，所述第一参考时段与所述第一目标时段在时域没有交叠；所述第二参考时段是所述第一时间窗中的一个时段。
  9. 一种被用于无线通信的第二节点中的方法，其特征在于包括：
    发送第一信令、第二信令和第三信令，所述第一信令指示第一时段集合，所述第二信令指示第一时间窗，所述第一时段集合中的任一时段是所述第一时间窗中的一个时段，所述第一时间窗中每个时段的定时参考第一节点侧的接收定时，所述第三信令指示第一时间长度；
    其中，所述第一信令的接收者包括所述第一节点，所述第一节点根据第一目标时段的定时在所述第一目标时段中发送第一信号，所述第一目标时段延迟所述第一时间长度之后是第一参考时段，所述第一参考时段是第一时段集合中的一个时段；所述第一信号包括第一信息，所述第一信息指示第一索引，所述第一索引与第二参考时段在所述第一时间窗中的索引相同，所述第二参考时段与所述第一目标时段在时域有交叠，所述第一参考时段与所述第一目标时段在时域没有交叠；所述第二参考时段是所述第一时间窗中的一个时段。
  10. 一种被用于无线通信的第三节点中的方法，其特征在于包括：
    根据第一目标时段的定时在第一目标时段中接收第一信号，所述第一目标时段延迟第一时间长度之后是第一参考时段，所述第一参考时段是第一时段集合中的一个时段；
    其中，所述第一信号的发送者是第一节点；所述第一节点通过接收第一信令确定所述第一时段集合，且通过接收第二信令确定第一时间窗，所述第一时段集合中的任一时段是所述第一时间窗中的一个时段，所述第一时间窗中每个时段的定时参考所述第一节点侧的接收定时，且所述第一节点通过接收第三信令确定所述第一时间长度；所述第一信号包括第一信息，所述第一信息指示第一索引，所述第一索引与第二参考时段在所述第一时间窗中的索引相同，所述第二参考时段与所述第一目标时段在时域有交叠，所述第一参考时段与所述第一目标时段在时域没有交叠；所述第二参考时段是所述第一时间窗中的一个时段。
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