WO2019196894A1 - 信息指示方法、终端设备和网络设备 - Google Patents

信息指示方法、终端设备和网络设备 Download PDF

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Publication number
WO2019196894A1
WO2019196894A1 PCT/CN2019/082210 CN2019082210W WO2019196894A1 WO 2019196894 A1 WO2019196894 A1 WO 2019196894A1 CN 2019082210 W CN2019082210 W CN 2019082210W WO 2019196894 A1 WO2019196894 A1 WO 2019196894A1
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WIPO (PCT)
Prior art keywords
information
transmission
parameter
transmission characteristic
terminal device
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Ceased
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PCT/CN2019/082210
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English (en)
French (fr)
Inventor
彭淑燕
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Vivo Mobile Communication Co Ltd
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Vivo Mobile Communication Co Ltd
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Publication of WO2019196894A1 publication Critical patent/WO2019196894A1/zh
Priority to US17/035,733 priority Critical patent/US11509445B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0033—Systems modifying transmission characteristics according to link quality, e.g. power backoff arrangements specific to the transmitter
    • 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
    • H04L5/0091—Signalling for the administration of the divided path, e.g. signalling of configuration information
    • H04L5/0092—Indication of how the channel is divided
    • 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
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0036—Systems modifying transmission characteristics according to link quality, e.g. power backoff arrangements specific to the receiver
    • H04L1/0038—Blind format detection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/2605—Symbol extensions, e.g. Zero Tail, Unique Word [UW]
    • H04L27/2607—Cyclic extensions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A) or DMT
    • H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A) or DMT the frequencies being arranged in component carriers
    • 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
    • H04L5/0044—Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
    • 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
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signalling for the administration of the divided path, e.g. signalling of configuration information
    • 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
    • H04L5/0091—Signalling for the administration of the divided path, e.g. signalling of configuration information
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • 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
    • H04L5/02—Channels characterised by the type of signal
    • H04L5/06—Channels characterised by the type of signal the signals being represented by different frequencies
    • H04L5/10—Channels characterised by the type of signal the signals being represented by different frequencies with dynamo-electric generation of carriers; with mechanical filters or demodulators
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/26025—Numerology, i.e. varying one or more of symbol duration, subcarrier spacing, Fourier transform size, sampling rate or down-clocking
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/16—Interfaces between hierarchically similar devices
    • H04W92/18—Interfaces between hierarchically similar devices between terminal devices

Definitions

  • the present disclosure relates to the field of communications, and in particular, to an information indication method, a terminal device, and a network device.
  • the transmitting end In the side link (SL), the transmitting end has a certain subcarrier spacing (SCS), a cyclic prefix (CP), and a demodulated reference signal (DMRS).
  • SCS subcarrier spacing
  • CP cyclic prefix
  • DMRS demodulated reference signal
  • BWP bandwidth
  • the receiving end When the receiving end demodulates the information sent by the transmitting end, the receiving end may try to use different SCS, CP, and BWP to receive the information of the transmitting end by using a blind detection manner.
  • the blind detection at the receiving end increases the complexity of demodulation of the receiving end information, resulting in lower efficiency of the receiving end to obtain information.
  • the embodiment of the present disclosure provides an information indication method, a terminal device, and a network device, to solve the problem that when the receiving end demodulates the information sent by the receiving end by means of blind detection in the side link, the information of the receiving end is demodulated.
  • the complexity leads to the problem of less efficient access to information at the receiving end.
  • the first aspect provides an information indication method, which is applied to the first terminal device, and includes:
  • the transmission characteristic parameter being used to send a physical channel on a side link SL, wherein the transmission characteristic parameter comprises a subcarrier spacing SCS, a cyclic prefix CP, a partial bandwidth BWP, and a configuration parameter of a demodulation reference signal DMRS At least one type;
  • Transmission characteristic information is transmitted, the transmission characteristic information being used to indicate the transmission characteristic parameter.
  • the second aspect provides an information indication method, which is applied to the first terminal device, and includes:
  • the physical channel is transmitted on the SL according to a transmission characteristic parameter set by default, and the transmission characteristic parameter includes at least one of configuration parameters of the SCS, the CP, the BWP, and the DMRS.
  • the third aspect provides an information indication method, which is applied to a network device, and includes:
  • the transmission characteristic parameter is used to send or demodulate a physical channel on the SL, and the transmission characteristic parameter includes at least one of a configuration parameter of an SCS, a CP, a BWP, and a DMRS;
  • Transmission characteristic information is transmitted, the transmission characteristic information being used to indicate the transmission characteristic parameter.
  • the fourth aspect provides an information indication method, which is applied to the second terminal device, and includes:
  • the transmission characteristic information is used to indicate a transmission characteristic parameter, where the transmission characteristic parameter includes at least one of a configuration parameter of an SCS, a CP, a BWP, and a DMRS;
  • the fifth aspect provides an information indication method, which is applied to the second terminal device, and includes:
  • the physical channel is received from the first terminal device on the SL according to a transmission characteristic parameter set by default, and the transmission characteristic parameter includes at least one of configuration parameters of the SCS, the CP, the BWP, and the DMRS.
  • a terminal device where the terminal device includes:
  • Determining a module determining a transmission characteristic parameter, the transmission characteristic parameter for transmitting a physical channel on a side link SL, the transmission characteristic parameter comprising a subcarrier spacing SCS, a cyclic prefix CP, a partial bandwidth BWP, and a demodulation reference signal DMRS At least one of the configuration parameters;
  • the sending module sends transmission characteristic information, where the transmission characteristic information is used to indicate the transmission characteristic parameter.
  • a seventh aspect provides a terminal device, where the terminal device includes:
  • the sending module sends a physical channel on the SL according to a default transmission characteristic parameter, where the transmission characteristic parameter includes at least one of a configuration parameter of an SCS, a CP, a BWP, and a DMRS.
  • a network device where the network device includes:
  • a configuration module configured to transmit a feature parameter, where the transmission feature parameter is used to send or demodulate a physical channel on the SL, where the transmission feature parameter includes at least one of a configuration parameter of an SCS, a CP, a BWP, and a DMRS;
  • the sending module sends transmission characteristic information, where the transmission characteristic information is used to indicate the transmission characteristic parameter.
  • a ninth aspect provides a terminal device, where the terminal device includes:
  • the receiving module receives the transmission characteristic information, where the transmission characteristic information is used to indicate a transmission characteristic parameter, where the transmission characteristic parameter includes at least one of a configuration parameter of an SCS, a CP, a BWP, and a DMRS;
  • a determining module configured to determine, according to the transmission feature information, the transmission feature parameter, where the transmission feature parameter is used to demodulate a physical channel sent by the first terminal device on the SL.
  • a tenth aspect provides a terminal device, where the terminal device includes:
  • the receiving module receives the physical channel from the first terminal device on the SL according to the default transmission characteristic parameter, where the transmission feature parameter includes at least one of a configuration parameter of the SCS, the CP, the BWP, and the DMRS.
  • a terminal device comprising a processor, a memory, and a computer program stored on the memory and executable on the processor, the computer program being executed by the processor.
  • a terminal device includes a processor, a memory, and a computer program stored on the memory and executable on the processor, the computer program being executed by the processor.
  • a network device comprising a processor, a memory, and a computer program stored on the memory and executable on the processor, the computer program being executed by the processor.
  • a terminal device comprising a processor, a memory, and a computer program stored on the memory and executable on the processor, the computer program being executed by the processor.
  • a terminal device comprising a processor, a memory, and a computer program stored on the memory and executable on the processor, the computer program being executed by the processor.
  • a computer readable storage medium stores a computer program, the computer program being executed by a processor to implement the steps of the method as described in the first aspect.
  • a computer readable storage medium stores a computer program, the computer program being executed by a processor to implement the steps of the method as described in the second aspect.
  • a computer readable storage medium stores a computer program, the computer program being executed by a processor to implement the steps of the method as described in the third aspect.
  • a computer readable storage medium stores a computer program, the computer program being executed by a processor to implement the steps of the method as described in the fourth aspect.
  • a computer readable storage medium stores a computer program, the computer program being executed by a processor to implement the steps of the method as described in the fifth aspect.
  • the transmitting end may send the transmission feature information after determining the transmission characteristic parameter, and the transmission feature parameter may be indicated by the transmission feature information, where the transmission feature parameter may include At least one of configuration parameters of SCS, CP, BWP, and DMRS.
  • the first terminal device and the second terminal device may acquire at least one of configuration parameters of the SCS, the CP, the BWP, and the DMRS, where the first terminal sends a physical channel according to the transmission characteristic parameter, and the second terminal device receives the physical according to the transmission characteristic parameter.
  • the channel reduces the number of blind detections at the receiving end, thereby reducing the complexity and delay of the information demodulation at the receiving end, and improving the efficiency of obtaining information at the receiving end.
  • FIG. 1 is a schematic flow chart of an information indication method according to an embodiment of the present disclosure
  • FIG. 2 is a schematic flow chart of an information indication method according to an embodiment of the present disclosure
  • FIG. 3 is a schematic flow chart of an information indication method according to an embodiment of the present disclosure.
  • FIG. 4 is a schematic structural diagram of a terminal device according to an embodiment of the present disclosure.
  • FIG. 5 is a schematic structural diagram of a terminal device according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic structural diagram of a network device according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic structural diagram of a terminal device according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic structural diagram of a terminal device according to an embodiment of the present disclosure.
  • FIG. 9 is a schematic structural diagram of a terminal device according to an embodiment of the present disclosure.
  • FIG. 10 is a schematic structural diagram of a network device according to an embodiment of the present disclosure.
  • FIG. 11 is a schematic structural diagram of a terminal device according to an embodiment of the present disclosure.
  • the transmitting end when the transmitting end sends a physical channel to the receiving end, the transmitting end can generally select one of the configurations of the multiple SCS, CP, BWP, and DMRS for transmission.
  • the transmitting end can adopt the SKS direction of 15 kHz.
  • the receiving end sends information, and can also use the 30KHz SCS to send information to the receiving end.
  • the low-density DMRS can be used to send information to the receiving end, or the high-density DMRS can be used to send information to the receiving end.
  • the receiving end may demodulate the received information to obtain information sent by the receiving end.
  • the receiving end since the SCS, CP, BWP, and DMRS used by the transmitting end are not fixed, the receiving end usually demodulates the received information by blind detection. For example, the receiving end can demodulate the received information using the 15 kHz SCS. If the demodulation fails, the 30 SHz SCS can be used to demodulate the received information, and the attempt is repeated multiple times.
  • the receiving end demodulates the information of the transmitting end by means of blind detection, which increases the complexity of demodulating the information of the receiving end, and prolongs the time for obtaining information by the receiving end to some extent, resulting in the efficiency of obtaining information by the receiving end. Lower.
  • an embodiment of the present disclosure provides an information indication method, a terminal device, and a network device.
  • the method includes: determining a transmission feature parameter, where the transmission feature parameter is used in a side link SL Transmitting a physical channel, the transmission characteristic parameter including at least one of a subcarrier spacing SCS, a cyclic prefix CP, a partial bandwidth BWP, and a configuration parameter of a demodulation reference signal DMRS; transmitting transmission characteristic information, where the transmission characteristic information is used The transmission characteristic parameter is indicated.
  • the first terminal device and the second terminal device may acquire at least one of configuration parameters of the SCS, the CP, the BWP, and the DMRS, where the first terminal sends a physical channel according to the transmission characteristic parameter, and the second terminal device receives the physical according to the transmission characteristic parameter.
  • the channel reduces the number of blind detections at the receiving end, thereby reducing the complexity and delay of the information demodulation at the receiving end, and improving the efficiency of obtaining information at the receiving end.
  • GSM Global System of Mobile Communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • LTE-A Long Term Evolution
  • NR New Radio
  • the first terminal device can be understood as the information transmitting end in the SL
  • the second terminal device can be understood as the information receiving end in the SL.
  • the first terminal device and the second terminal device can be understood as the user terminal (UE, User Equipment), which may also be called a mobile terminal, a mobile user equipment, etc., may communicate with one or more core networks via, for example, a Radio Access Network (RAN), and the user equipment may
  • RAN Radio Access Network
  • RAN Radio Access Network
  • a network device can be understood as a core network, and can also be understood as a base station.
  • the base station can be a base station (BTS, Base Transceiver Station) in GSM or CDMA, or a base station (NodeB) in WCDMA, or can be in LTE.
  • BTS Base Transceiver Station
  • NodeB base station
  • the present disclosure is not limited to the evolved base station (eNB or e-NodeB, evolutional Node B) and 5G base station (gNB). However, for convenience of description, the following embodiments use gNB as an example for description.
  • a side link can be understood as a side link or as a sub link.
  • FIG. 1 is a schematic flowchart diagram of an information indication method according to an embodiment of the present disclosure, where the method is applied to a first terminal device, and the method is as follows.
  • Step 102 Determine a transmission characteristic parameter, where the transmission characteristic parameter is used to send a physical channel on a side link SL, where the transmission characteristic parameter includes a subcarrier spacing SCS, a cyclic prefix CP, a partial bandwidth BWP, and a demodulation reference signal DMRS. At least one of the configuration parameters.
  • the physical channel transmitted on the SL may include: a physical side link discovery channel (PSDCH), a physical side link control channel (PSCCH), and a physical side link data channel (PSSCH, At least one of physical sidelink data channel) may also include other physical channels on the SL, which are not illustrated here.
  • PSDCH physical side link discovery channel
  • PSCCH physical side link control channel
  • PSSCH physical side link data channel
  • the first terminal device may determine the transmission feature parameter by means of selection.
  • the first terminal device may select a 15 kHz SCS and a low density DMRS to send at least one of a PSCCH and a PSSCH to the second terminal device, where the 15 kHz SCS and the low density DMRS are the determined transmission characteristic parameters. .
  • the first terminal device may also determine the transmission feature parameter by other means.
  • the first terminal device may determine the transmission feature information by using a preset manner (ie, the pre-set transmission feature parameter is regarded as a determined location).
  • the transmission characteristic parameter may also be determined according to the current moving speed. For example, if the current moving speed of the first terminal device is faster, a higher SCS or DMRS may be used. Description.
  • the transmission characteristic parameter determined by the first terminal device may include at least one of a configuration parameter of an SCS, a CP, a BWP, and a DMRS, where the SCS may be one of 15KHz, 30KHz, 60KHz, 120KHz, and 240KHz, and the DMRS
  • the configuration parameter may include a time domain configuration parameter and a frequency domain configuration parameter, where the time domain configuration parameter may include the number of Orthogonal Frequency Division Multiplexing (OFDM) symbols of the DMRS and the time domain location parameter of the DMRS.
  • At least one of the frequency domain configuration parameters may also include at least one of a number of subcarriers of the DMRS and a frequency domain location parameter.
  • the transmission feature parameter when determining, by the first terminal device, the transmission feature parameter: if the first terminal device sends the PSCCH, the transmission feature parameter for transmitting the PSCCH may be determined; if the first terminal device sends the PSSCH, the first terminal device may determine A transmission characteristic parameter used for transmitting the PSSCH; if the first terminal device transmits the PSDCH, the transmission characteristic parameter for transmitting the PSDCH may be determined.
  • the transmission characteristic parameters for transmitting the PSCCH, the transmission characteristic parameters for transmitting the PSSCH, and the transmission characteristic parameters for transmitting the PSDCH may be the same or different.
  • the first terminal device may perform S104.
  • S104 Send transmission feature information, where the transmission feature information is used to indicate the transmission feature parameter.
  • the first terminal device may send transmission feature information, where the transmission feature information may be used to indicate the transmission feature parameter.
  • the first terminal device may send the transmission feature information in an outbound manner, or may send the transmission feature information to the second terminal device.
  • the number of the second terminal device may be one or multiple. .
  • the following embodiments of the present disclosure may be described by taking the transmission feature information to a second terminal device as an example.
  • the first terminal device sends the transmission feature information, which may include:
  • the first terminal device may carry the transmission feature parameter in the broadcast information, and send the broadcast information to the second terminal device, and indicate the transmission feature parameter to the second terminal device by using the broadcast information.
  • the broadcast information may be a Master Information Block side link (MIB-SL) or a Master Information Block side link vehicle to everything (MIB-SL-V2X). It may also be a physical side link broadcast channel (PSBCH), which is not specifically limited herein.
  • MIB-SL Master Information Block side link
  • MIB-SL-V2X Master Information Block side link vehicle to everything
  • PSBCH physical side link broadcast channel
  • the first terminal device may use 1 bit in the MIB-SL to indicate the SCS.
  • the "0” may be used to indicate that the SCS is 15 kHz.
  • “1” indicates that the SCS is 30KHz; in the high frequency band, “0” can be used to indicate that the SCS is 60KHz, and "1" is used to indicate that the SCS is 120KHz.
  • the first terminal device may use two bits in the MIB-SL to indicate configuration parameters of the SCS and the DMRS, where, in the low frequency band, Use "00" to indicate that the SCS is 15KHz, one DMRS symbol, use “01” to indicate that the SCS is 15KHz, two DMRS symbols, use "10” to indicate that the SCS is 30KHz, three DMRS symbols, and use "11" to indicate that the SCS is 30KHz. , 4 DMRS symbols.
  • the transmission characteristic parameter that the first terminal device indicates to the second terminal device by using the broadcast information may be a transmission feature parameter that needs to be used when the PSCCH is sent to the second terminal device on the SL, or may be sent to the second terminal device when the PSSCH is sent.
  • the transmission characteristic parameter to be used may also be a transmission characteristic parameter that needs to be used when transmitting the PSCCH and the PSSCH to the second terminal device.
  • the transmission characteristic parameter indicated by the first terminal device to the second terminal device includes at least one of the SCS, the CP, and the BWP, and the configuration parameter of the DMRS, at least one of the SCS, the CP, and the BWP may be combined with the DMRS.
  • the configuration parameters are independently coded or combined, and are not specifically limited herein.
  • the sending, by the first terminal device, the transmission characteristic information may include:
  • the first terminal device may indicate, by using the PSCCH, a transmission feature parameter for transmitting the PSSCH to the second terminal device.
  • the first terminal device may carry the transmission characteristic parameter for transmitting the PSSCH in the PSCCH, and send the PSCCH to the second terminal device, and indicate to the second terminal device, for sending, by using the PSCCH. Transmission characteristic parameters of the PSSCH.
  • the first terminal device may specifically send side link control information (SCI), and the SCI may be carried by the PSCCH.
  • SCI side link control information
  • the first terminal device and the second terminal device may pre-agreed a first mapping relationship between at least one of the SCS, the CP, and the BWP and a configuration parameter of the DMRS.
  • the transmission feature information may be used to indicate the SCS, the CP, and the BWP. At least one of them.
  • the second terminal device may receive the indication according to the SCS, the CP, and the BWP. Determining, by the at least one and the first mapping relationship, configuration parameters of the DMRS corresponding to at least one of the SCS, the CP, and the BWP, so that the first terminal device may implement the indication of the transmission characteristic parameter of the configuration parameter that includes the DMRS Second terminal device.
  • the configuration parameter of the DMRS may be simultaneously indicated to the first mapping relationship.
  • Two terminal devices. The manner in which the first terminal device indicates the configuration parameter of the DMRS may be regarded as an implicit indication.
  • the first terminal device sends the transmission feature information for indicating at least one of the SCS, the CP, and the BWP to the second terminal device
  • the foregoing first or second embodiment of the present disclosure may be adopted. The method described in the above is not repeated here.
  • the first terminal device and the second terminal device may pre-agreed a second mapping relationship between at least one of the SCS, the CP, and the BWP and the configuration parameter of the DMRS.
  • the second mapping relationship may be the same as the first mapping relationship described in the third embodiment.
  • the transmission feature information may be used to indicate Configuration parameters of the DMRS.
  • the second terminal device may determine, according to the configuration parameter of the DMRS and the second mapping relationship, when the indication is received by the second terminal device. At least one of the SCS, the CP, and the BWP corresponding to the configuration parameter of the DMRS, so that the first terminal device may implement the indication of the transmission characteristic parameter including at least one of the SCS, the CP, and the BWP to the second terminal device.
  • the first terminal device when the first terminal device indicates the configuration parameter of the DMRS to the second terminal device by using the transmission feature information, at least one of the SCS, the CP, and the BWP may be simultaneously indicated to the second mapping relationship according to the second mapping relationship.
  • Two terminal devices. The manner in which the first terminal device indicates at least one of the SCS, the CP, and the BWP may be regarded as an implicit indication.
  • the first terminal device sends the transmission feature information for indicating the configuration parameter of the DMRS to the second terminal device
  • the method described in the foregoing first or second embodiment of the present disclosure may be used. The description will not be repeated.
  • the first terminal device and the second terminal device may pre-agreed a third mapping relationship between the sequence value of the synchronization signal and the transmission feature parameter.
  • the synchronization signal may include at least one of a Primary Sidelink Synchronization Signal (PSSS) and a Secondary Sidelink Synchronization Signal (SSSS), and may also include other on the SL. Synchronization signals are not illustrated here.
  • the transmission feature information may include the synchronization signal (or may be understood as the transmission feature information sent by the first terminal device, that is, the synchronization signal) .
  • the second terminal device may obtain the sequence value of the synchronization signal when receiving the synchronization signal, according to the synchronization signal.
  • the sequence value and the third mapping relationship may determine a transmission characteristic parameter corresponding to the sequence value of the synchronization signal.
  • the first terminal device can transmit the transmission feature parameter to the second terminal device by transmitting the transmission feature information including the synchronization signal to the second terminal device according to the third mapping relationship.
  • the manner in which the first terminal device indicates the transmission of the feature parameter to the second terminal device by using the synchronization signal may be regarded as an implicit indication.
  • the first terminal device and the second terminal device may pre-arrange the time domain location and the frequency domain location of the broadcast information and the synchronization signal when transmitting the broadcast information and the synchronization signal, and transmit A fourth mapping relationship between the feature parameters, wherein the synchronization signal may include at least one of a PSSS and an SSSS, and may also include other synchronization signals on the SL.
  • the transmission feature information may include the broadcast information and the synchronization signal (or may be understood as the transmission feature information sent by the first terminal device, that is, the broadcast information and the synchronization. signal).
  • the second terminal device may determine the first terminal when receiving the broadcast information and the synchronization signal.
  • the positional relationship between the broadcast information and the synchronization signal in the time domain and the frequency domain may be determined according to the location relationship and the fourth mapping relationship.
  • the transmission characteristic parameter corresponding to the positional relationship.
  • the first terminal device can transmit the transmission feature parameter to the second terminal device by transmitting the transmission feature information including the broadcast information and the synchronization signal to the second terminal device according to the fourth mapping relationship.
  • the manner in which the first terminal device indicates the transmission of the feature parameter to the second terminal device by using the broadcast information and the synchronization signal may be regarded as an implicit indication.
  • the first terminal device and the second terminal device may pre-approve at least one of configuration parameters of the SCS, CP, BWP, and DMRS used by the first terminal device when transmitting the broadcast information.
  • the fifth mapping relationship with the transmission feature parameters may be pre-approve at least one of configuration parameters of the SCS, CP, BWP, and DMRS used by the first terminal device when transmitting the broadcast information.
  • the first terminal device may send the broadcast information to the second terminal device when transmitting the transmission feature information to the second terminal device.
  • the second terminal device may determine at least one of configuration parameters of the SCS, the CP, the BWP, and the DMRS used by the first terminal device when transmitting the broadcast information, according to the fifth mapping.
  • the relationship may be determined by the first terminal device indicating the transmission characteristic parameter.
  • the first terminal device can transmit the transmission feature parameter to the second terminal device by sending the broadcast information to the second terminal device according to the fifth mapping relationship.
  • the manner in which the first terminal device indicates the transmission of the feature parameter to the second terminal device by using the broadcast information may be regarded as an implicit indication.
  • the first terminal device and the second terminal device may pre-appoint at least one of configuration parameters of the SCS, CP, BWP, and DMRS used by the first terminal device when transmitting the synchronization signal.
  • the synchronization signal may include at least one of a PSSS and an SSSS, and may also include other synchronization signals on the SL.
  • the first terminal device may include the synchronization signal in the transmission feature information when transmitting the transmission feature information to the second terminal device.
  • the second terminal device may determine at least one of configuration parameters of the SCS, the CP, the BWP, and the DMRS used by the first terminal device when transmitting the synchronization signal, according to the sixth mapping.
  • the relationship may be determined by the first terminal device indicating the transmission characteristic parameter.
  • the first terminal device can indicate the transmission characteristic parameter to the second terminal device by sending a synchronization signal to the second terminal device according to the sixth mapping relationship.
  • the manner in which the first terminal device indicates the transmission of the feature parameter to the second terminal device by using the synchronization signal may be regarded as an implicit indication.
  • the information indication methods of the six embodiments described above may be combined with each other, that is, the transmission characteristic parameters may be indicated to the second terminal device by using two or more of the foregoing six embodiments. .
  • the first terminal device may send the MIB-SL information to the second terminal device by using the broadcast information and the PSSCH to indicate the transmission feature parameter to the second terminal device, where the MIB-SL information may carry an indication of the SCS for transmitting the PSCCH. For example, one bit can be used to represent the SCS in the MIB-SL information.
  • the first terminal device may send the PSCCH to the second terminal device according to the SCS indicated in the MIB-SL, where the first terminal device may carry an indication of the SCS for transmitting the PSSCH in the PSCCH. In this way, the first terminal device may implement an indication to the second terminal device of the SCS for transmitting the PSCCH and the SCS for transmitting the PSSCH.
  • the first terminal device may also indicate the transmission feature parameters to the second terminal device by using other combinations, which are not illustrated herein.
  • the first terminal device sends the transmission feature information to the second terminal device by using the method described in any one or more of the foregoing embodiments, and after transmitting the feature parameter, Methods can include:
  • the updated transmission characteristic information is sent according to the set time period, and the updated transmission characteristic information is used to indicate the updated transmission characteristic parameter.
  • the transmission feature parameter determined by the first terminal device is not fixed.
  • the transmission feature parameter may be updated to obtain the updated transmission feature. parameter.
  • the first terminal device may indicate the updated transmission characteristic parameter to the second terminal device according to the set time period. Specifically, the first terminal device may send the transmission feature information to the second terminal device, where the transmission feature information may be used to indicate the updated transmission feature parameter.
  • the transmission feature information may be understood as the updated transmission feature information, because the transmission feature parameter indicated by the transmission feature information changes.
  • the first terminal device may send the updated transmission feature information to the second terminal device according to the set time period, and may be sent by using any one of the foregoing six embodiments. The description is not repeated here.
  • the first terminal device may carry the updated transmission feature parameter in the broadcast information, obtain the updated broadcast information, and send the updated broadcast information to the second terminal device according to the set time period; for example, A terminal device may change the sequence value of the synchronization signal, and send the updated transmission feature information to the second terminal device according to the set time period, where the updated transmission feature information includes the synchronization signal after updating the sequence value.
  • the set time period may be an integer multiple of a period in which the first terminal device sends the transmission feature information to the second terminal device.
  • the set time period may be an integer multiple of a period in which the broadcast information is transmitted. If the transmission feature information includes a synchronization signal, the set time period may be a synchronization signal. An integer multiple of the period.
  • the first terminal device indicates the transmission characteristic parameter to the second terminal device by using the broadcast information. If the period of the first terminal device transmitting the broadcast information is T, and the broadcast information carrying the transmission characteristic parameter is sent at time t0+T, then
  • the first terminal device may send every T and at time t0+nT (n is an integer greater than 0) (for example, It can be sent at t0+2T, t0+3T, t0+4T, ..., t0+nT), or it can be sent every mT and at t0+m*nT (m, n are integers greater than 0)
  • it can be sent at t0+2T, t0+4T, t0+6T, ..., t0+m*nT), or it can be sent at t0+nT (n is an integer greater than 0 and can be randomly selected)
  • it can be sent at t0+nT (n is an integer greater than 0 and can be randomly selected)
  • the first terminal device indicates the transmission characteristic parameter to the second terminal device through the synchronization signal
  • the transmission period of the synchronization signal is T1
  • the synchronization signal is sent at time t1+T1
  • the first terminal device sends the update sequence.
  • the value of the synchronization signal may be transmitted every T1 and at t1+nT1 (n is an integer greater than 0), or every mT and at t0+m*nT (m, n are integers greater than 0)
  • the time transmission may also be sent at t0+nT (n is an integer greater than 0 and can be randomly selected).
  • the first terminal device sends the transmission feature information to the second terminal device by using the method described in any one or more of the foregoing embodiments, and after transmitting the feature parameter,
  • the method can also include:
  • the reference factor including at least one of a mobility characteristic and a service characteristic
  • the updated transmission characteristic information is sent, and the updated transmission characteristic information is used to indicate the updated transmission characteristic parameter.
  • the transmission feature parameter may be updated according to the reference factor.
  • the reference factor may be a reference factor of the first terminal device, or may be a reference factor of the first terminal device and the second terminal device, where the reference factor may specifically include at least one of a mobile feature and a service feature.
  • the reference factor is a reference factor of the first terminal device, where the mobility characteristic may be a moving speed of the first terminal device, or may be a geographic location information of the first terminal device, where the service feature may be
  • QoS quality of service
  • the first terminal device may determine the network device pre-configuration reference factor, and when the reference factor changes, the transmission characteristic parameter may be updated according to the changed reference factor.
  • the threshold of the network pre-configured reference factor is V0, and when the reference factor is greater than or less than V0, the transmission characteristic parameter can be updated.
  • a threshold may also be preset, and when the change of the reference factor exceeds the threshold, the transmission characteristic parameter is updated.
  • the transmission characteristic parameters are updated (eg, when the reference factor is greater than V0+alpha)
  • the SCS can be increased, the density of the DMRS is increased; when the reference factor is smaller than V0-alpha, the SCS can be reduced and the density of the DMRS can be reduced).
  • the first terminal device may also indicate the updated transmission feature parameter to the second terminal according to the set time period described in the foregoing embodiment. device.
  • the first terminal device uses the SCS of 15 kHz when transmitting information to the second terminal device on the low frequency band at time t0+T, and the number of DMRSs in one time slot is 2 (2 DMRS symbols), at t0+t1 (ti is greater than T and less than 2T), if the moving speed v of the first terminal device becomes larger and greater than v0+alpha, the SCS can be changed to 30 kHz and the number of DMRSs in one slot is 4 to transmit the MIB-
  • the period of the SL is the minimum granularity, and the updated SCS and the DMRS can be indicated to the second terminal device at time t0+2T.
  • the number of DMRSs within 15 kHz and one slot can be changed.
  • the period of the MIB-SL is the minimum granularity, and the updated SCS and the DMRS may be indicated to the second terminal device at time t0+4T.
  • the first terminal device may send the physical channel on the SL to the second terminal device by using the transmission feature parameter indicated in the transmission feature information.
  • the transmitting end may send the transmission feature information after determining the transmission characteristic parameter, and the transmission feature parameter may be indicated by the transmission feature information, where the transmission feature parameter may include At least one of configuration parameters of SCS, CP, BWP, and DMRS.
  • the transmitting end can indicate at least one of the configuration parameters of the SCS, the CP, the BWP, and the DMRS that it uses to the receiving end.
  • the receiving end After receiving the indication from the transmitting end, the receiving end can demodulate the received information according to the indication. The number of blind detections at the receiving end is reduced, thereby reducing the complexity and delay of information demodulation at the receiving end, and improving the efficiency of obtaining information at the receiving end.
  • FIG. 2 is a schematic flowchart diagram of an information indication method according to an embodiment of the present disclosure.
  • the information indicating method is applied to a network device, and the method is as follows.
  • S202 Configure a transmission feature parameter, where the transmission feature parameter is used to send or demodulate a physical channel, where the transmission feature parameter includes at least one of a configuration parameter of an SCS, a CP, a BWP, and a DMRS.
  • the network device may pre-configure a transmission characteristic parameter, where the transmission characteristic parameter may be used by the terminal device to send or demodulate a physical channel on the SL, and the physical channel may include at least one of a PSDCH, a PSCCH, and a PSSCH. It can also include other physical channels on the SL, which are not illustrated here.
  • the transmission characteristic parameter may include at least one of a configuration parameter of an SCS, a CP, a BWP, and a DMRS.
  • the SCS may be one of 15KHz, 30KHz, 60KHz, 120KHz, and 240KHz.
  • the configuration parameters of the DMRS may include time domain configuration parameters and frequency domain configuration parameters, and the time domain configuration parameters may include OFDM symbols of the DMRS. And at least one of a number and a time domain location parameter of the DMRS, the frequency domain configuration parameter may also include at least one of a number of subcarriers of the DMRS and a frequency domain location parameter.
  • the network device configures the SCS, CP, BWP, and DMRS configuration parameters.
  • the network device can configure the SCS size, CP length, and DMRS configuration parameters for each BWP.
  • the network device can configure BWP0 to adopt a 15 kHz SCS, the CP length is t1, the number of DMRSs in one slot is 2; BWP1 adopts 15 kHz SCS, CP length is t2, and DMRS in one slot The number is 2; BWP2 uses 30 kHz SCS, CP length is t3, the number of DMRSs in one slot is 4; BWP3 uses 30 kHz SCS, CP length is t4, and the number of DMRSs in one slot is 4.
  • the network device can configure BWP0 to use 60 kHz SCS, the CP length is t1, the number of DMRSs in one time slot is 2; BWP1 uses 120 kHz SCS, the CP length is t2, and the number of DMRS in one time slot is 4; BWP2 adopts 60 kHz SCS, CP length is t3, the number of DMRS in one time slot is 2; BWP3 adopts 120 kHz SCS, CP length is t4, and the number of DMRS in one time slot is 4.
  • the network device may execute S204.
  • S204 Send transmission feature information, where the transmission feature information is used to indicate the transmission feature parameter.
  • the network device may send transmission feature information to the terminal device, where the transmission feature information is used to indicate the transmission feature parameter.
  • the network device may send the transmission feature information to the first terminal device and the second terminal device, so that the first terminal device sends the physical channel on the SL according to the indication, and the second terminal device demodulates the physical channel on the SL according to the indication. .
  • the sending, by the network device, the transmission characteristic information may include:
  • the system message block SIB information is sent, and the SIB information carries the transmission feature parameter.
  • the network device may carry the transmission feature parameter in the RRC information, and indicate the transmission feature parameter to the first terminal device and the second terminal device by sending the RRC information; or The network device may also carry the transmission feature information in the SIB information, and send the transmission feature parameter to the first terminal device and the second terminal device by sending the SIB information.
  • the network device may send the transmission feature information to the first terminal device and the second terminal device by using any one of the foregoing two manners.
  • the method may further include:
  • the updated transmission characteristic information is sent, and the updated transmission characteristic information is used to indicate the updated transmission characteristic parameter.
  • the pre-configured transmission characteristic parameters of the network device are not fixed, and the network device may periodically update the pre-configured transmission characteristic parameters and obtain the updated transmission characteristic parameters.
  • the network device may indicate the updated transmission characteristic parameter to the first terminal device and the second terminal device. Specifically, the network device may send the information to the first terminal device and the second terminal device.
  • the transmission characteristic information indicating the updated transmission characteristic parameter may be regarded as the updated transmission characteristic information.
  • the network device may send the updated RRC information to the first terminal device and the second terminal device, where the updated RRC information carries the update.
  • the updated SIB information may be sent to the first terminal device and the second terminal device, where the updated SIB information carries the updated transmission feature parameter.
  • the first terminal device and the second terminal device may obtain the transmission feature parameters configured by the network device from the RRC information or the SIB information.
  • the network device may pre-configure a transmission characteristic parameter, and the transmission characteristic parameter indicates the pre-configured transmission characteristic parameter, where the transmission characteristic parameter includes an SCS, a CP, a BWP, and At least one of the configuration parameters of the DMRS.
  • the network device can indicate the transmission characteristic information to the transmitting end and the receiving end, and the transmitting end can send information to the receiving end according to the indication, and the receiving end can demodulate the received information according to the indication, thereby reducing the number of blind detections at the receiving end. Therefore, the complexity and delay of the demodulation of the information at the receiving end can be reduced, and the efficiency of obtaining information at the receiving end can be improved.
  • FIG. 3 is a schematic flowchart diagram of an information indication method according to an embodiment of the present disclosure.
  • the information indicating method is applied to the second terminal device, and the method is as follows.
  • S302 Receive transmission feature information, where the transmission feature information is used to indicate a transmission feature parameter, where the transmission feature parameter includes at least one of a configuration parameter of an SCS, a CP, a BWP, and a DMRS.
  • the SCS may be one of 15KHz, 30KHz, 60KHz, 120KHz, and 240KHz.
  • the configuration parameters of the DMRS may include time domain configuration parameters and frequency domain configuration parameters, and the time domain configuration parameters may include OFDM symbols of the DMRS. And at least one of a number and a time domain location parameter of the DMRS, the frequency domain configuration parameter may also include at least one of a number of subcarriers of the DMRS and a frequency domain location parameter.
  • the receiving, by the second terminal device, the transmission feature information may include:
  • the transmission characteristic information is received from the first terminal device.
  • the second terminal device may receive the transmission feature information from the first terminal device, where the transmission The feature information is used to indicate a transmission feature parameter, and the transmission feature parameter includes at least one of a configuration parameter of an SCS, a CP, a BWP, and a DMRS.
  • the receiving, by the second terminal device, the transmission characteristic information may include:
  • the transmission characteristic information is received from a network device.
  • the second terminal device may receive the transmission feature information from the network device, where the transmission feature information is used.
  • the transmission characteristic parameter is indicated, and the transmission characteristic parameter includes at least one of a configuration parameter of the SCS, the CP, the BWP, and the DMRS.
  • the receiving, by the first terminal device, the transmission feature information from the network device may include:
  • the second terminal device may receive the RRC information from the network device; if the network device carries the transmission feature information in the SIB In the information, the SIB information is sent to the second terminal device, and the second terminal device can receive the SIB information from the network device.
  • the receiving, by the second terminal device, the transmission feature information from the first terminal device may further include:
  • the transmission feature parameter may be updated according to the method described in the embodiment shown in FIG. And transmitting the updated transmission feature information to the second terminal device, where the updated transmission feature information may be used to indicate the updated transmission feature parameter.
  • the second terminal device may receive the updated transmission feature information from the first terminal device, so as to update the transmission feature parameter indicated by the first terminal device according to the updated transmission feature information.
  • the receiving, by the second terminal device, the transmission characteristic information from the network device may further include:
  • the transmission feature parameter may be updated according to the method described in the embodiment shown in FIG. 2, and And transmitting the updated transmission feature information to the second terminal device, where the updated transmission feature information may be used to indicate the updated transmission feature parameter.
  • the second terminal device may receive the updated transmission feature information from the network device, so as to update the transmission feature parameter indicated by the network device according to the updated transmission feature information.
  • the second terminal device may receive the updated transmission feature information from the network device, and may receive the updated RRC information from the network device, where the updated RRC information carries the updated transmission feature parameter, or may be a slave network device.
  • the updated SIB information is received, and the updated SIB information carries the updated transmission feature parameter.
  • the second terminal device may perform S304.
  • S304 Determine, according to the transmission feature information, the transmission feature parameter, where the transmission feature parameter is used to demodulate a physical channel sent by the first terminal device on the SL.
  • the second terminal device may determine the transmission feature parameter according to the transmission feature information, so that the second terminal device can be based on the transmission feature.
  • the parameter demodulates the physical channel transmitted by the first terminal device on the SL.
  • the physical channel may include at least one of a PSDCH, a PSCCH, and a PSSCH, and may also include other physical channels on the SL, which are not illustrated herein.
  • determining the transmission feature parameter according to the transmission feature information may include:
  • the transmission characteristic parameter is determined based on the broadcast information.
  • the first terminal device may send the broadcast information to the second terminal device by using the method described in the embodiment shown in FIG. 1, where the broadcast information may carry the transmission feature parameter.
  • the second terminal device may demodulate and analyze the broadcast information, and obtain the transmission characteristic parameter carried by the second terminal device from the broadcast information.
  • the second terminal device may demodulate at least one of the received PSCCH and the PSSCH according to the transmission characteristic parameter indicated by the first terminal device.
  • the transmission feature parameter is used to demodulate the PSSCH sent by the first terminal device
  • the transmission feature parameter which may include:
  • the transmission characteristic parameter is determined according to the PSCCH.
  • the first terminal device may send a PSCCH to the second terminal device by using the method described in the embodiment shown in FIG. 1, and the PSCCH may carry a transmission feature parameter for demodulating the PSSCH.
  • the second terminal device may demodulate and analyze the PSCCH, and obtain the transmission characteristic parameters carried by the PSCCH from the PSCCH.
  • the second terminal device may demodulate the received PSSCH according to the transmission characteristic parameter indicated by the first terminal device.
  • the second terminal device and the first terminal device may pre-appoint at least one of the SCS, the CP, and the BWP.
  • the first mapping relationship with the configuration parameters of the DMRS may be pre-appoint at least one of the SCS, the CP, and the BWP.
  • the transmission characteristic parameter indicated by the first terminal device to the second terminal device may include a configuration parameter of the DMRS, and the transmission feature information received by the second terminal device may be used to indicate at least one of the SCS, the CP, and the BWP.
  • the determining, by the first terminal device, the transmission feature parameter according to the transmission feature information may include: determining the transmission feature parameter according to the transmission feature information and the first mapping relationship.
  • the second terminal device may obtain the SCS, CP, and BWP indicated by the first terminal device.
  • the configuration parameter of the DMRS corresponding to at least one of the SCS, the CP, and the BWP may be determined according to the pre-agreed first mapping relationship, so that the second terminal device may obtain the SCS, At least one of a CP and a BWP and a transmission characteristic parameter of a configuration parameter of the DMRS.
  • the second terminal device and the first terminal device may pre-appoint at least one of the SCS, the CP, and the BWP.
  • a second mapping relationship with the configuration parameters of the DMRS may be pre-appoint at least one of the SCS, the CP, and the BWP.
  • the transmission characteristic parameter indicated by the first terminal device to the second terminal device may include at least one of an SCS, a CP, and a BWP, and the transmission feature information received by the second terminal device may be used to indicate a configuration parameter of the DMRS.
  • the determining, by the first terminal device, the transmission feature parameter according to the transmission feature information may include: determining the transmission feature parameter according to the transmission feature information and the second mapping relationship.
  • the second terminal device may obtain the configuration parameter of the DMRS indicated by the first terminal device, Then, at least one of the SCS, the CP, and the BWP corresponding to the configuration parameter of the DMRS may be determined according to the pre-agreed second mapping relationship, so that the second terminal device may obtain at least one of the SCS, the CP, and the BWP.
  • a transmission characteristic parameter of a configuration parameter of a DMRS may be determined according to the pre-agreed second mapping relationship.
  • the second terminal device and the first terminal device may pre-agreed the sequence value and transmission characteristics of the synchronization signal.
  • the synchronization signal may include at least one of a PSSS and an SSSS, and may also include other synchronization signals on the SL.
  • the transmission characteristic information received by the second terminal device from the first terminal device may include a synchronization signal (or may be understood as a transmission feature information sent by the first terminal device, that is, a synchronization signal), and the synchronization signal includes at least a PSSS and an SSSS.
  • the determining, by the second terminal device, the transmission feature parameter according to the transmission feature information may include: determining the transmission feature parameter according to the transmission feature information and a third mapping relationship.
  • the second terminal device may obtain the sequence of the synchronization signal.
  • the value, after which the transmission characteristic parameter corresponding to the sequence value of the synchronization signal is determined according to the pre-agreed third mapping relationship, so that the second terminal device can obtain the transmission characteristic parameter by using the synchronization signal.
  • the second terminal device and the first terminal device may pre-approve when transmitting the broadcast information and the synchronization signal, a fourth mapping relationship between the time domain location and the frequency domain location of the broadcast information and the synchronization signal, and the transmission characteristic parameter, wherein the synchronization signal may include at least one of a PSS and an SSS, and may also include an SL Other sync signals.
  • the transmission characteristic information received by the second terminal device from the first terminal device may include the broadcast information and the synchronization signal (or may be understood as the transmission characteristic information transmitted by the first terminal device, that is, the broadcast information and the synchronization signal).
  • the determining, by the first terminal device, the transmission feature parameter according to the transmission feature information may include: determining the transmission feature parameter according to the transmission feature information and the fourth mapping relationship.
  • the second terminal device can obtain the first terminal device.
  • the broadcast information and the synchronization signal are transmitted, the broadcast information and the positional relationship of the synchronization signal in the time domain and the frequency domain may be determined according to the predetermined fourth mapping relationship.
  • the transmission characteristic parameter corresponding to the positional relationship is such that the second terminal device can obtain the transmission characteristic parameter by using the broadcast information and the transmission time domain position and the frequency domain position relationship of the synchronization signal.
  • the second terminal device and the first terminal device may pre-agreed the SCS used when the first terminal device sends the broadcast information.
  • determining the transmission feature parameter according to the transmission feature information may include: determining, according to the broadcast information and the fifth mapping relationship, the transmission feature parameter.
  • the second terminal device determines, by demodulating the broadcast information, the SCS, CP, BWP, and DMRS used by the first terminal device to send the broadcast information. At least one of the configuration parameters, the second terminal device may determine, according to the fifth mapping relationship, a transmission feature parameter corresponding to at least one of a configuration parameter of the SCS, the CP, the BWP, and the DMRS used by the first terminal device, In this way, the second terminal device can obtain the transmission characteristic parameter by broadcasting the information.
  • the second terminal device and the first terminal device may pre-agreed, and the first terminal device sends the synchronization.
  • determining the transmission feature parameter according to the transmission feature information may include: determining, according to the transmission feature information and the sixth mapping relationship, the transmission feature parameter.
  • the second terminal device determines, by demodulating the transmission feature information, the SCS, CP, BWP used by the first terminal device to send the synchronization signal, and At least one of the configuration parameters of the DMRS, according to the sixth mapping relationship, the second terminal device may determine a transmission feature corresponding to at least one of the configuration parameters of the SCS, the CP, the BWP, and the DMRS used by the first terminal device.
  • the parameters such that the second terminal device can obtain the transmission characteristic parameters through the synchronization signal.
  • the second terminal device may acquire the transmission feature parameter configured by the network device from the RRC information or the SIB information.
  • the second terminal device After the second terminal device determines the transmission characteristic parameter according to the transmission characteristic information, after receiving at least one of the PSCCH and the PSSCH from the first terminal device in the SL, the second terminal device may receive the PSCCH according to the determined transmission characteristic parameter. At least one of the PSSCHs is demodulated to avoid blind detection and improve the efficiency of obtaining information.
  • the receiving end after receiving the transmission characteristic information, determines the transmission characteristic parameter indicated by the transmission characteristic information, where the transmission characteristic parameter may include the configurations of the SCS, the CP, the BWP, and the DMRS. At least one of the parameters.
  • the receiving end after receiving the information of the transmitting end, the receiving end can demodulate the received information according to the indication, thereby reducing the number of blind detections at the receiving end, thereby reducing the complexity and delay of the demodulation of the receiving end information, and improving the receiving end. The efficiency of information.
  • the first terminal device and the second terminal device may also set the same transmission feature parameter by default.
  • the first terminal device and the second terminal device may have a transmission feature parameter that is set by default at the factory.
  • the transmission characteristic parameter includes at least one of a configuration parameter of an SCS, a CP, a BWP, and a DMRS, where the transmission characteristic parameter may be used by the first terminal device to send a physical channel to the second terminal device on the SL, and used
  • the physical channel transmitted on the first terminal device SL is demodulated by the second terminal device.
  • the physical channel may include at least one of a PSDCH, a PSCCH, and a PSSCH, and may also include other physical channels on the SL.
  • the first terminal device and the second terminal device are configured to set the same transmission feature parameter by default, so that when the first terminal device sends the information to the second terminal device, the first terminal device can send according to the default transmission feature parameter, and the second terminal After receiving the information from the first terminal device, the device may perform demodulation by using the default transmission feature parameter, thereby reducing the number of blind detections of the second terminal device, thereby reducing the complexity and delay of the second terminal device information demodulation. , improving the efficiency of the second terminal device to obtain information.
  • the transmission characteristic parameters set by default by the first terminal device and the second terminal device are not fixed.
  • the first terminal device or the network device updates the transmission characteristic parameter, and implemented by using FIG. 1 or FIG. 2
  • the updated transmission characteristic parameter may cover the transmission characteristic parameter set by the first terminal device and the second terminal device by default.
  • the device and the second terminal device can transmit the information using the updated transmission characteristic parameters.
  • FIG. 4 is a schematic structural diagram of a terminal device according to an embodiment of the present disclosure.
  • the terminal device includes: a determining module 41 and a sending module 42, where:
  • the determining module 41 determines a transmission characteristic parameter, where the transmission characteristic parameter is used to send a physical channel on the side link SL, the transmission characteristic parameter includes a subcarrier spacing SCS, a cyclic prefix CP, a partial bandwidth BWP, and a demodulation reference signal DMRS At least one of the configuration parameters;
  • the sending module 42 sends transmission characteristic information, where the transmission characteristic information is used to indicate the transmission characteristic parameter.
  • the sending module 42 sends the transmission feature information, including:
  • the transmission characteristic parameter is used to send a PSSCH on the SL;
  • the sending module 42 sends the transmission characteristic information, including:
  • the transmission characteristic parameter includes a configuration parameter of a DMRS, where the transmission characteristic information is used to indicate at least one of an SCS, a CP, and a BWP, and at least one of the SCS, the CP, and the BWP is configured with a DMRS.
  • the parameter has a first mapping relationship.
  • the transmission characteristic parameter includes at least one of an SCS, a CP, and a BWP, where the transmission characteristic information is used to indicate a configuration parameter of the DMRS, and at least one of the SCS, the CP, and the BWP is configured with the DMRS.
  • the parameter has a second mapping relationship.
  • the transmission feature information includes a synchronization signal
  • the sequence value of the synchronization signal has a third mapping relationship with the transmission feature parameter.
  • the transmission characteristic information includes broadcast information and a synchronization signal
  • the relationship between the broadcast information and the transmission time domain location and the frequency domain location of the synchronization signal has a fourth mapping relationship with the transmission characteristic parameter.
  • the sending module 42 sends the transmission feature information, including:
  • the broadcast information is sent, and at least one of the configuration parameters of the SCS, the CP, the BWP, and the DMRS used by the first terminal device to send the broadcast information has a fifth mapping relationship with the transmission feature parameter.
  • the transmission feature information includes a synchronization signal, and at least one of a configuration parameter of the SCS, the CP, the BWP, and the DMRS used by the first terminal device to send the synchronization signal and the transmission feature parameter Has a sixth mapping relationship.
  • the first terminal device further includes: a first update module 43, where:
  • the first update module 43 updates the transmission feature parameter after the sending module 42 sends the transmission feature information
  • the sending module 42 sends the updated transmission feature information according to the set time period, and the updated transmission feature information is used to indicate the updated transmission feature parameter.
  • the first terminal device further includes: a second update module 44, where:
  • the second update module 44 after the sending module 42 sends the transmission feature information, updates the transmission feature parameter according to a reference factor, where the reference factor includes at least one of a mobility characteristic and a service characteristic;
  • the sending module 42 sends the updated transmission feature information, and the updated transmission feature information is used to indicate the updated transmission feature parameter.
  • the transmitting end may send the transmission characteristic information after determining the transmission characteristic parameter, and the transmission characteristic parameter is indicated by the transmission characteristic information, where the transmission characteristic parameter may include the SCS and the CP. At least one of the configuration parameters of the BWP and the DMRS. In this way, the transmitting end can indicate at least one of the configuration parameters of the SCS, the CP, the BWP, and the DMRS that it uses to the receiving end.
  • the receiving end After receiving the indication from the transmitting end, the receiving end can demodulate the received information according to the indication. The number of blind detections at the receiving end is reduced, thereby reducing the complexity and delay of information demodulation at the receiving end, and improving the efficiency of obtaining information at the receiving end.
  • FIG. 5 is a schematic structural diagram of a terminal device according to an embodiment of the present disclosure.
  • the terminal device includes: a sending module 51, where:
  • the sending module 51 sends a physical channel on the SL according to a default transmission characteristic parameter, where the transmission characteristic parameter includes at least one of a configuration parameter of an SCS, a CP, a BWP, and a DMRS.
  • the sending end and the receiving end set the same transmission characteristic parameter by default, so that when the sending end sends the information to the receiving end, the transmitting end may send according to the default transmission characteristic parameter, and the receiving end receives the receiving from the transmitting end.
  • the transmission characteristic parameters of the default setting can be used for demodulation, which reduces the number of blind detections at the receiving end, thereby reducing the complexity and delay of information demodulation at the receiving end, and improving the efficiency of obtaining information at the receiving end.
  • FIG. 6 is a schematic structural diagram of a network device according to an embodiment of the present disclosure.
  • the network device includes: a configuration module 61 and a sending module 62, where:
  • the configuration module 61 is configured to configure a transmission characteristic parameter, where the transmission characteristic parameter is used to send or demodulate a physical channel on the SL, and the transmission characteristic parameter includes at least one of a configuration parameter of an SCS, a CP, a BWP, and a DMRS;
  • the sending module 62 sends transmission characteristic information, where the transmission characteristic information is used to indicate the transmission characteristic parameter.
  • the network device further includes: an update module 63, where:
  • the update module 63 updates the transmission feature parameter
  • the sending module 62 sends the updated transmission feature information, and the updated transmission feature information is used to indicate the updated transmission feature parameter.
  • the sending module 62 sends the transmission feature information, including:
  • the system message block SIB information is sent, and the SIB information carries the transmission feature parameter.
  • the network device may pre-configure the transmission characteristic parameter, and indicate the pre-configured transmission characteristic parameter by using the transmission characteristic information, where the transmission characteristic parameter includes the configurations of the SCS, the CP, the BWP, and the DMRS. At least one of the parameters.
  • the network device can indicate the transmission characteristic information to the transmitting end and the receiving end, and the transmitting end can send information to the receiving end according to the indication, and the receiving end can demodulate the received information according to the indication, thereby reducing the number of blind detections at the receiving end. Therefore, the complexity and delay of the demodulation of the information at the receiving end can be reduced, and the efficiency of obtaining information at the receiving end can be improved.
  • FIG. 7 is a schematic structural diagram of a terminal device according to an embodiment of the present disclosure.
  • the terminal device includes: a receiving module 71 and a determining module 72, where:
  • the receiving module 71 is configured to receive transmission feature information, where the transmission feature information is used to indicate a transmission feature parameter, where the transmission feature parameter includes at least one of a configuration parameter of an SCS, a CP, a BWP, and a DMRS;
  • the determining module 72 is configured to determine, according to the transmission feature information, the transmission feature parameter, where the transmission feature parameter is used to demodulate a physical channel sent by the first terminal device on the SL.
  • the receiving module 71 receives the transmission feature information, including:
  • the determining module 72 is configured to determine the transmission feature parameter according to the transmission feature information, including:
  • the transmission characteristic parameter is determined based on the broadcast information.
  • the transmission feature parameter is used to demodulate a PSSCH sent by the first terminal device
  • the determining module 72 determines the transmission characteristic parameter according to the transmission characteristic information, including:
  • the transmission characteristic parameter is determined according to the PSCCH.
  • the transmission characteristic parameter includes a configuration parameter of a DMRS, where the transmission characteristic information is used to indicate at least one of an SCS, a CP, and a BWP;
  • the determining module 72 determines the transmission characteristic parameter according to the transmission characteristic information, including:
  • the transmission feature parameter Determining, according to the transmission feature information and the first mapping relationship, the transmission feature parameter, where the first mapping relationship is a mapping relationship between at least one of an SCS, a CP, and a BWP and a configuration parameter of a DMRS.
  • the transmission characteristic parameter includes at least one of an SCS, a CP, and a BWP, where the transmission characteristic information is used to indicate a configuration parameter of the DMRS;
  • the determining module 72 determines the transmission characteristic parameter according to the transmission characteristic information, including:
  • the transmission feature parameter Determining, according to the transmission feature information and the second mapping relationship, the transmission feature parameter, where the second mapping relationship is a mapping relationship between at least one of an SCS, a CP, and a BWP and a configuration parameter of the DMRS.
  • the transmission feature information includes a synchronization signal
  • the determining module 72 determines the transmission characteristic parameter according to the transmission characteristic information, including:
  • the transmission feature parameter determining, according to the transmission feature information and the third mapping relationship, the transmission feature parameter, where the third mapping relationship is a mapping relationship between a sequence value of the synchronization signal and the transmission feature parameter.
  • the transmission characteristic information includes broadcast information and a synchronization signal
  • the determining module 72 determines the transmission characteristic parameter according to the transmission characteristic information, including:
  • the transmission feature parameter Determining, according to the transmission feature information and the fourth mapping relationship, the transmission feature parameter, where the fourth mapping relationship is a transmission time domain location and a frequency domain location relationship of the broadcast information and the synchronization signal, and the transmission feature The mapping between parameters.
  • the receiving module 71 receives broadcast information from the first terminal device
  • the determining module 72 determines the transmission characteristic parameter according to the transmission characteristic information, including:
  • the fifth mapping relationship is used in configuration parameters of the SCS, CP, BWP, and DMRS used by the first terminal device to send the broadcast information. At least one of the mapping relationship with the transmission characteristic parameter.
  • the transmission feature information includes a synchronization signal
  • the determining module 72 determines the transmission characteristic parameter according to the transmission characteristic information, including:
  • the transmission feature parameter Determining, according to the transmission feature information and the sixth mapping relationship, the transmission feature parameter, where the sixth mapping relationship is a configuration parameter of the SCS, CP, BWP, and DMRS used by the first terminal device to send the synchronization signal A mapping relationship between at least one of the characteristics and the transmission characteristic parameter.
  • the receiving module 71 receiving the transmission feature information from the first terminal device, includes:
  • the receiving module 71 receiving the transmission feature information, includes:
  • the transmission characteristic information is received from a network device.
  • the receiving module 71 receiving the transmission feature information from the network device, includes:
  • the receiving module 71 receiving the transmission feature information from the network device, includes:
  • the terminal device provided by the embodiment of the present disclosure can implement various processes implemented by the network device in the method embodiment of FIG. 3, and details are not described herein again to avoid repetition.
  • the receiving end determines the transmission characteristic parameter indicated by the transmission characteristic information, where the transmission characteristic parameter may include at least one of the configuration parameters of the SCS, the CP, the BWP, and the DMRS.
  • the receiving end can demodulate the received information according to the indication, thereby reducing the number of blind detections at the receiving end, thereby reducing the complexity and delay of the demodulation of the receiving end information, and improving the receiving end. The efficiency of information.
  • FIG. 8 is a schematic structural diagram of a terminal device according to an embodiment of the present disclosure.
  • the terminal device includes: a receiving module 81, where:
  • the receiving module 81 receives a physical channel from the first terminal device on the SL according to a default transmission characteristic parameter, where the transmission feature parameter includes at least one of a configuration parameter of the SCS, the CP, the BWP, and the DMRS.
  • the sending end and the receiving end set the same transmission characteristic parameter by default, so that when the sending end sends the information to the receiving end, the transmitting end may send according to the default transmission characteristic parameter, and the receiving end receives the receiving from the transmitting end.
  • the transmission characteristic parameters of the default setting can be used for demodulation, which reduces the number of blind detections at the receiving end, thereby reducing the complexity and delay of information demodulation at the receiving end, and improving the efficiency of obtaining information at the receiving end.
  • the communication device may include: a network device, a first terminal device, and a second terminal device.
  • FIG. 9 is a terminal of an embodiment of the present disclosure. Schematic diagram of the device.
  • the terminal device 900 shown in FIG. 9 includes at least one processor 901, a memory 902, at least one network interface 904, and a user interface 903.
  • the various components in mobile terminal 900 are coupled together by a bus system 905.
  • the bus system 905 is used to implement connection communication between these components.
  • the bus system 905 includes a power bus, a control bus, and a status signal bus in addition to the data bus.
  • various buses are labeled as bus system 905 in FIG.
  • the user interface 903 may include a display, a keyboard, or a pointing device (eg, a mouse, a trackball, a touchpad, or a touch screen, etc.).
  • a pointing device eg, a mouse, a trackball, a touchpad, or a touch screen, etc.
  • the memory 902 in an embodiment of the present disclosure may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory may be a Read-Only Memory (ROM), a Programmable Read Only Memory (PROM), an Erasable PROM (EPROM), or an Erasable PROM. Erase programmable read only memory (EEPROM, Electrically EPROM) or flash memory.
  • the volatile memory can be a random access memory (RAM) that acts as an external cache.
  • RAM random access memory
  • many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM, Synchronous).
  • DRAM Double Data Rate Synchronous Dynamic Random Access Memory
  • DDRSDRAM Double Data Rate Synchronous Dynamic Random Access Memory
  • ESDRAM Enhanced Synchronous Dynamic Random Access Memory
  • SDRAM Synchronous Connection Dynamic Random Access Memory
  • SLDRAM Synchronous Connection Dynamic Random Access Memory
  • DRRAM Direct Rambus RAM
  • the memory 902 of the systems and methods described in the embodiments of the present disclosure is intended to comprise, without being limited to, these and any other suitable types of memory.
  • memory 902 stores elements, executable modules or data structures, or a subset thereof, or their extended set: operating system 9021 and application 9022.
  • the operating system 9021 includes various system programs, such as a framework layer, a core library layer, a driver layer, and the like, for implementing various basic services and processing hardware-based tasks.
  • the application 9022 includes various applications, such as a media player (Media Player), a browser, and the like, for implementing various application services.
  • a program implementing the method of the embodiments of the present disclosure may be included in the application 9022.
  • the terminal device 900 further includes: a computer program stored on the memory 902 and executable on the processor 901. When the computer program is executed by the processor 901, the following steps are implemented:
  • the transmission characteristic parameter being used to send a physical channel on a side link SL, wherein the transmission characteristic parameter comprises a subcarrier spacing SCS, a cyclic prefix CP, a partial bandwidth BWP, and a configuration parameter of a demodulation reference signal DMRS At least one type;
  • Transmission characteristic information is transmitted, the transmission characteristic information being used to indicate the transmission characteristic parameter.
  • the physical channel is transmitted on the SL according to a transmission characteristic parameter set by default, and the transmission characteristic parameter includes at least one of configuration parameters of SCS, CP, BWP, and DMRS.
  • the method disclosed in the above embodiments of the present disclosure may be applied to the processor 901 or implemented by the processor 901.
  • the processor 901 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the foregoing method may be completed by an integrated logic circuit of hardware in the processor 901 or an instruction in a form of software.
  • the processor 901 may be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), an off-the-shelf programmable gate array (FPGA), or a Field Programmable Gate Array (FPGA). Programmable logic devices, discrete gates or transistor logic devices, discrete hardware components.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA off-the-shelf programmable gate array
  • FPGA Field Programmable Gate Array
  • Programmable logic devices discrete gates or transistor logic devices, discrete hardware components.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the steps of the method disclosed in connection with the embodiments of the present disclosure may be directly implemented by the hardware decoding processor, or may be performed by a combination of hardware and software modules in the decoding processor.
  • the software modules can be located in a conventional computer readable storage medium of the art, such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the computer readable storage medium is located in a memory 902, and the processor 901 reads the information in the memory 902 and, in conjunction with its hardware, performs the steps of the above method.
  • the computer readable storage medium stores a computer program, and when the computer program is executed by the processor 901, the steps of the embodiment of the information indicating method are implemented.
  • the embodiments described in the embodiments of the present disclosure may be implemented in hardware, software, firmware, middleware, microcode, or a combination thereof.
  • the processing unit can be implemented in one or more application specific integrated circuits (ASICs), digital signal processing (DSP), digital signal processing equipment (DSPD), programmable Logic Device (PLD), Field-Programmable Gate Array (FPGA), general purpose processor, controller, microcontroller, microprocessor, other for performing the functions described in this disclosure In an electronic unit or a combination thereof.
  • ASICs application specific integrated circuits
  • DSP digital signal processing
  • DSPD digital signal processing equipment
  • PLD programmable Logic Device
  • FPGA Field-Programmable Gate Array
  • the techniques described in the embodiments of the present disclosure may be implemented by modules (eg, procedures, functions, etc.) that perform the functions described in the embodiments of the present disclosure.
  • the software code can be stored in memory and executed by the processor.
  • the memory can be implemented in the processor or external to the processor.
  • the terminal device 900 can implement various processes implemented by the first terminal in the foregoing embodiment. To avoid repetition, details are not described herein again.
  • Embodiments of the present disclosure also provide a computer readable storage medium storing one or more programs, the one or more programs including instructions that are executed by a communication device that includes a plurality of applications
  • the communication device can be caused to execute the method of the embodiment shown in FIG. 1 and specifically for performing the steps of the information indicating method described above.
  • FIG. 10 is a schematic structural diagram of a network device according to an embodiment of the present disclosure.
  • the schematic diagram of the physical device of the network device 1000 is as shown in FIG. 10, and includes a processor 1002 and a memory. 1003.
  • transmitter 1001 and receiver 1004 can be coupled to antenna 1005.
  • the memory 1003 is configured to store a program.
  • the program can include program code, the program code including computer operating instructions.
  • the memory 1003 can include read only memory and random access memory and provides instructions and data to the processor 1002.
  • the memory 1003 may include a high speed RAM memory and may also include a non-volatile memory such as at least one disk memory.
  • the processor 1002 executes the program stored in the memory 1003.
  • the processor 1002 may perform the following methods:
  • the transmission characteristic parameter is used to send or demodulate a physical channel on the SL, and the transmission characteristic parameter includes at least one of a configuration parameter of an SCS, a CP, a BWP, and a DMRS;
  • Transmission characteristic information is transmitted, the transmission characteristic information being used to indicate the transmission characteristic parameter.
  • the method performed by the network device 1000 disclosed in the embodiment shown in FIG. 2 of the present disclosure may be applied to the processor 1002 or implemented by the processor 1002.
  • the processor 1002 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method may be completed by an integrated logic circuit of hardware in the processor 1002 or an instruction in a form of software.
  • the processor 1002 may be a general-purpose processor, including a central processing unit (CPU), a network processor (NP, Network Processor), etc., or may be a digital signal processor (DSP) or an application specific integrated circuit (ASIC). ), off-the-shelf programmable gate arrays (FPGAs) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the steps of the method disclosed in connection with the embodiments of the present disclosure may be directly implemented by the hardware decoding processor, or by a combination of hardware and software modules in the decoding processor.
  • the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in the memory 1003, and the processor 1002 reads the information in the memory 1003 and completes the steps of the above method in combination with its hardware.
  • the network device can also perform the method shown in FIG. 2 and implement the functions of the network device in the embodiment shown in FIG. 2, and details are not described herein again.
  • Embodiments of the present disclosure also provide a computer readable storage medium storing one or more programs, the one or more programs including instructions that are executed by a communication device that includes a plurality of applications
  • the communication device can be caused to perform the method of the embodiment shown in FIG. 2 and specifically for performing the steps of the information indicating method described above.
  • FIG. 11 is a schematic structural diagram of a terminal device according to an embodiment of the present disclosure.
  • the terminal device 1100 shown in FIG. 11 includes at least one processor 1101, a memory 1102, at least one network interface 1104, and a user interface 1103.
  • the various components in mobile terminal 1100 are coupled together by a bus system 1105.
  • the bus system 1105 is used to implement connection communication between these components.
  • the bus system 1105 includes a power bus, a control bus, and a status signal bus in addition to the data bus.
  • various buses are labeled as the bus system 1105 in FIG.
  • the user interface 1103 may include a display, a keyboard, or a pointing device (eg, a mouse, a trackball, a touchpad, or a touch screen, etc.).
  • a pointing device eg, a mouse, a trackball, a touchpad, or a touch screen, etc.
  • the memory 1102 in an embodiment of the present disclosure may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory may be a Read-Only Memory (ROM), a Programmable Read Only Memory (PROM), an Erasable PROM (EPROM), or an Erasable PROM. Erase programmable read only memory (EEPROM, Electrically EPROM) or flash memory.
  • the volatile memory can be a random access memory (RAM) that acts as an external cache.
  • RAM random access memory
  • many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM, Synchronous).
  • DRAM Double Data Rate Synchronous Dynamic Random Access Memory
  • DDRSDRAM Double Data Rate Synchronous Dynamic Random Access Memory
  • ESDRAM Enhanced Synchronous Dynamic Random Access Memory
  • SDRAM Synchronous Connection Dynamic Random Access Memory
  • SLDRAM Synchronous Connection Dynamic Random Access Memory
  • DRRAM Direct Rambus RAM
  • the memory 902 of the systems and methods described in the embodiments of the present disclosure is intended to comprise, without being limited to, these and any other suitable types of memory.
  • the memory 1102 stores elements, executable modules or data structures, or a subset thereof, or their extended set: an operating system 11021 and an application 11022.
  • the operating system 11021 includes various system programs, such as a framework layer, a core library layer, a driver layer, and the like, for implementing various basic services and processing hardware-based tasks.
  • the application 11022 includes various applications, such as a media player (Media Player), a browser (Browser), etc., for implementing various application services.
  • a program implementing the method of the embodiments of the present disclosure may be included in the application 11022.
  • the terminal device 1100 further includes: a computer program stored on the memory 1102 and executable on the processor 1101. When the computer program is executed by the processor 1101, the following steps are implemented:
  • the transmission characteristic information is used to indicate a transmission characteristic parameter, where the transmission characteristic parameter includes at least one of a configuration parameter of an SCS, a CP, a BWP, and a DMRS;
  • the physical channel is received from the first terminal device on the SL according to a transmission characteristic parameter set by default, and the transmission characteristic parameter includes at least one of configuration parameters of the SCS, the CP, the BWP, and the DMRS.
  • the method disclosed in the above embodiments of the present disclosure may be applied to the processor 1001 or implemented by the processor 1001.
  • the processor 1001 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the foregoing method may be completed by an integrated logic circuit of hardware in the processor 1001 or an instruction in a form of software.
  • the processor 1001 may be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), an off-the-shelf programmable gate array (FPGA), or a Field Programmable Gate Array (FPGA). Programmable logic devices, discrete gates or transistor logic devices, discrete hardware components.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA off-the-shelf programmable gate array
  • FPGA Field Programmable Gate Array
  • Programmable logic devices discrete gates or transistor logic devices, discrete hardware components.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the steps of the method disclosed in connection with the embodiments of the present disclosure may be directly implemented by the hardware decoding processor, or may be performed by a combination of hardware and software modules in the decoding processor.
  • the software modules can be located in a conventional computer readable storage medium of the art, such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the computer readable storage medium is located in the memory 1002, and the processor 1001 reads the information in the memory 1002 and performs the steps of the above method in combination with its hardware.
  • the computer readable storage medium stores a computer program, and when the computer program is executed by the processor 1001, the steps of the embodiment of the information indicating method are implemented.
  • the embodiments described in the embodiments of the present disclosure may be implemented in hardware, software, firmware, middleware, microcode, or a combination thereof.
  • the processing unit can be implemented in one or more application specific integrated circuits (ASICs), digital signal processing (DSP), digital signal processing equipment (DSPD), programmable Logic Device (PLD), Field-Programmable Gate Array (FPGA), general purpose processor, controller, micro-controller, microprocessor, other electronics for performing the functions described in this disclosure Unit or combination thereof.
  • ASICs application specific integrated circuits
  • DSP digital signal processing
  • DSPD digital signal processing equipment
  • PLD programmable Logic Device
  • FPGA Field-Programmable Gate Array
  • controller micro-controller
  • microprocessor other electronics for performing the functions described in this disclosure Unit or combination thereof.
  • the techniques described in the embodiments of the present disclosure may be implemented by modules (eg, procedures, functions, etc.) that perform the functions described in the embodiments of the present disclosure.
  • the software code can be stored in memory and executed by the processor.
  • the memory can be implemented in the processor or external to the processor.
  • the terminal device 1000 can implement various processes implemented by the second terminal device in the foregoing embodiment. To avoid repetition, details are not described herein again.
  • Embodiments of the present disclosure also provide a computer readable storage medium storing one or more programs, the one or more programs including instructions that are executed by a communication device that includes a plurality of applications
  • the communication device can be caused to execute the method of the embodiment shown in FIG. 3 and specifically for performing the steps of the information indicating method described above.
  • the system, device, module or unit illustrated in the above embodiments may be implemented by a computer chip or an entity, or by a product having a certain function.
  • a typical implementation device is a computer.
  • the computer can be, for example, a personal computer, a laptop computer, a cellular phone, a camera phone, a smart phone, a personal digital assistant, a media player, a navigation device, an email device, a game console, a tablet computer, a wearable device, or A combination of any of these devices.
  • Computer readable media includes both permanent and non-persistent, removable and non-removable media.
  • Information storage can be implemented by any method or technology.
  • the information can be computer readable instructions, data structures, modules of programs, or other data.
  • Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read only memory. (ROM), electrically erasable programmable read only memory (EEPROM), flash memory or other memory technology, compact disk read only memory (CD-ROM), digital versatile disk (DVD) or other optical storage, Magnetic tape cartridges, magnetic tape storage or other magnetic storage devices or any other non-transportable media can be used to store information that can be accessed by a computing device.
  • computer readable media does not include temporary storage of computer readable media, such as modulated data signals and carrier waves.
  • the foregoing embodiment method can be implemented by means of software plus a necessary general hardware platform, and of course, can also be through hardware, but in many cases, the former is better.
  • Implementation Based on such understanding, the technical solution of the present disclosure, which is essential or contributes to the related art, may be embodied in the form of a software product stored in a storage medium (such as ROM/RAM, disk, CD-ROM).
  • the instructions include a number of instructions for causing a terminal (which may be a cell phone, computer, server, air conditioner, or network device, etc.) to perform the methods described in various embodiments of the present disclosure.

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Abstract

本公开公开了一种信息指示方法、终端设备和网络设备，该方法包括：确定传输特征参数，所述传输特征参数用于在旁链路SL上发送物理信道，所述传输特征参数包括子载波间隔SCS、循环前缀CP、部分带宽BWP以及解调参考信号DMRS的配置参数中的至少一种；发送传输特征信息，所述传输特征信息用于指示所述传输特征参数。

Description

信息指示方法、终端设备和网络设备
相关申请的交叉引用
本申请主张在2018年4月12日在中国提交的中国专利申请No.201810328055.3的优先权，其全部内容通过引用包含于此。
技术领域
本公开涉及通信领域，尤其涉及一种信息指示方法、终端设备和网络设备。
背景技术
在旁链路(SL，sidelink)中，发送端以一定的子载波间隔(SCS，subcarrier spacing)、循环前缀(CP，cycle prefix)、以及一定配置的解调参考信号(DMRS，demodulation reference signal)在部分带宽(BWP，bandwidth part)发送物理信道，接收端在从发送端接收到信息后，可以对接收到的信息进行解调，以获取发送端发送的信息。
接收端在对发送端发送的信息进行解调时，接收端可以采用盲检的方式尝试采用不同的SCS、CP以及BWP接收发送端的信息。然而，在实际应用中，接收端的盲检会增加接收端信息解调的复杂度，导致接收端获取信息的效率较低。
发明内容
本公开实施例提供一种信息指示方法、终端设备和网络设备，以解决在旁链路中，接收端通过盲检的方式对接收端发送的信息进行解调时，会增加接收端信息解调的复杂度，导致接收端获取信息的效率较低的问题。
为了解决上述技术问题，本公开是这样实现的：
第一方面，提供了一种信息指示方法，应用于第一终端设备，包括：
确定传输特征参数，所述传输特征参数用于在旁链路SL上发送物理信道，所述传输特征参数包括子载波间隔SCS、循环前缀CP、部分带宽BWP以及 解调参考信号DMRS的配置参数中的至少一种；
发送传输特征信息，所述传输特征信息用于指示所述传输特征参数。
第二方面，提供了一种信息指示方法，应用于第一终端设备，包括：
根据默认设置的传输特征参数，在SL上发送物理信道，所述传输特征参数包括SCS、CP、BWP以及DMRS的配置参数中的至少一种。
第三方面，提供了一种信息指示方法，应用于网络设备，包括：
配置传输特征参数，所述传输特征参数用于在SL上发送或解调物理信道，所述传输特征参数包括SCS、CP、BWP以及DMRS的配置参数中的至少一种；
发送传输特征信息，所述传输特征信息用于指示所述传输特征参数。
第四方面，提供了一种信息指示方法，应用于第二终端设备，包括：
接收传输特征信息，所述传输特征信息用于指示传输特征参数，所述传输特征参数包括SCS、CP、BWP以及DMRS的配置参数中的至少一种；
根据所述传输特征信息，确定所述传输特征参数，所述传输特征参数用于对第一终端设备在SL上发送的物理信道进行解调。
第五方面，提供了一种信息指示方法，应用于第二终端设备，包括：
根据默认设置的传输特征参数，在SL上从第一终端设备接收物理信道，所述传输特征参数包括SCS、CP、BWP以及DMRS的配置参数中的至少一种。
第六方面，提供了一种终端设备，该终端设备包括：
确定模块，确定传输特征参数，所述传输特征参数用于在旁链路SL上发送物理信道，所述传输特征参数包括子载波间隔SCS、循环前缀CP、部分带宽BWP以及解调参考信号DMRS的配置参数中的至少一种；
发送模块，发送传输特征信息，所述传输特征信息用于指示所述传输特征参数。
第七方面，提供了一种终端设备，该终端设备包括：
发送模块，根据默认设置的传输特征参数，在SL上发送物理信道，所述传输特征参数包括SCS、CP、BWP以及DMRS的配置参数中的至少一种。
第八方面，提供了一种网络设备，该网络设备包括：
配置模块，配置传输特征参数，所述传输特征参数用于在SL上发送或解调物理信道，所述传输特征参数包括SCS、CP、BWP以及DMRS的配置参数中的至少一种；
发送模块，发送传输特征信息，所述传输特征信息用于指示所述传输特征参数。
第九方面，提供了一种终端设备，该终端设备包括：
接收模块，接收传输特征信息，所述传输特征信息用于指示传输特征参数，所述传输特征参数包括SCS、CP、BWP以及DMRS的配置参数中的至少一种；
确定模块，根据所述传输特征信息，确定所述传输特征参数，所述传输特征参数用于对第一终端设备在SL上发送的物理信道进行解调。
第十方面，提供了一种终端设备，该终端设备包括：
接收模块，根据默认设置的传输特征参数，在SL上从第一终端设备接收物理信道，所述传输特征参数包括SCS、CP、BWP以及DMRS的配置参数中的至少一种。
第十一方面，提供了一种终端设备，该终端设备包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的计算机程序，所述计算机程序被所述处理器执行时实现如第一方面所述的方法的步骤。
第十二方面，提供了一种终端设备，该终端设备包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的计算机程序，所述计算机程序被所述处理器执行时实现如第二方面所述的方法的步骤。
第十三方面，提供了一种网络设备，该网络设备包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的计算机程序，所述计算机程序被所述处理器执行时实现如第三方面所述的方法的步骤。
第十四方面，提供了一种终端设备，该网络设备包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的计算机程序，所述计算机程序被所述处理器执行时实现如第四方面所述的方法的步骤。
第十五方面，提供了一种终端设备，该网络设备包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的计算机程序，所述计算机程 序被所述处理器执行时实现如第五方面所述的方法的步骤。
第十六方面，提供了一种计算机可读存储介质，其中，所述计算机可读存储介质上存储计算机程序，所述计算机程序被处理器执行时实现如第一方面所述的方法的步骤。
第十七方面，提供了一种计算机可读存储介质，其中，所述计算机可读存储介质上存储计算机程序，所述计算机程序被处理器执行时实现如第二方面所述的方法的步骤。
第十八方面，提供了一种计算机可读存储介质，其中，所述计算机可读存储介质上存储计算机程序，所述计算机程序被处理器执行时实现如第三方面所述的方法的步骤。
第十九方面，提供了一种计算机可读存储介质，其中，所述计算机可读存储介质上存储计算机程序，所述计算机程序被处理器执行时实现如第四方面所述的方法的步骤。
第二十方面，提供了一种计算机可读存储介质，其中，所述计算机可读存储介质上存储计算机程序，所述计算机程序被处理器执行时实现如第五方面所述的方法的步骤。
本公开实施例提供的技术方案，在SL中，发送端在确定传输特征参数后，可以发送传输特征信息，通过所述传输特征信息指示所述传输特征参数，其中，所述传输特征参数可以包括SCS、CP、BWP以及DMRS的配置参数中的至少一种。这样，第一终端设备和第二终端设备可以获取SCS、CP、BWP以及DMRS的配置参数中的至少一种，第一终端根据传输特征参数发送物理信道，第二终端设备根据传输特征参数接收物理信道，减少了接收端的盲检次数，从而可以降低接收端信息解调的复杂度和时延，提高接收端获取信息的效率。
附图说明
此处所说明的附图用来提供对本公开的进一步理解，构成本公开的一部分，本公开的示意性实施例及其说明用于解释本公开，并不构成对本公开的不当限定。在附图中：
图1是本公开的一个实施例信息指示方法的流程示意图；
图2是本公开的一个实施例信息指示方法的流程示意图；
图3是本公开的一个实施例信息指示方法的流程示意图；
图4是本公开的一个实施例终端设备的结构示意图；
图5是本公开的一个实施例终端设备的结构示意图；
图6是本公开的一个实施例网络设备的结构示意图；
图7是本公开的一个实施例终端设备的结构示意图；
图8是本公开的一个实施例终端设备的结构示意图；
图9是本公开的一个实施例终端设备的结构示意图；
图10是本公开的一个实施例网络设备的结构示意图；
图11是本公开的一个实施例终端设备的结构示意图。
具体实施方式
相关技术中的SL中，发送端在向接收端发送物理信道时，通常可以从多种SCS、CP、BWP以及DMRS的配置中选择一种配置进行发送，例如，发送端可以采用15KHz的SCS向接收端发送信息，也可以采用30KHz的SCS向接收端发送信息，可以采用低密度的DMRS向接收端发送信息，也可以采用高密度的DMRS向接收端发送信息。
接收端从发送端接收到信息后，可以对接收到的信息进行解调，以获得接收端发送的信息。然而，由于发送端使用的SCS、CP、BWP以及DMRS不固定，因此，接收端通常通过盲检的方式解调接收到的信息。例如，接收端可以使用15KHz的SCS解调接收到的信息，若解调失败，则可以继续使用30KHz的SCS解调接收到的信息，如此尝试多次。
由此可见，接收端通过盲检的方式对发送端的信息进行解调，增加了接收端信息解调的复杂度，在一定程度上延长了接收端获得信息的时间，导致接收端获取信息的效率较低。
有鉴于此，本公开实施例提供一种信息指示方法、终端设备和网络设备，该方法应用于第一终端设备时，包括：确定传输特征参数，所述传输特征参数用于在旁链路SL上发送物理信道，所述传输特征参数包括子载波间隔SCS、 循环前缀CP、部分带宽BWP以及解调参考信号DMRS的配置参数中的至少一种；发送传输特征信息，所述传输特征信息用于指示所述传输特征参数。
这样，第一终端设备和第二终端设备可以获取SCS、CP、BWP以及DMRS的配置参数中的至少一种，第一终端根据传输特征参数发送物理信道，第二终端设备根据传输特征参数接收物理信道，减少了接收端的盲检次数，从而可以降低接收端信息解调的复杂度和时延，提高接收端获取信息的效率。
下面将结合本公开实施例中的附图，对本公开实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本公开一部分实施例，而不是全部的实施例。基于本公开中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本公开保护的范围。
本公开的技术方案，可以应用于各种通信系统，例如：全球移动通讯系统(GSM，Global System of Mobile communication)，码分多址(CDMA，Code Division Multiple Access)系统，宽带码分多址(WCDMA，Wideband Code Division Multiple Access)，通用分组无线业务(GPRS，General Packet Radio Service)，长期演进(LTE，Long Term Evolution)/增强长期演进(LTE-A，Long Term Evolution advanced)，NR(New Radio)等。
第一终端设备可以理解为SL中的信息发送端，第二终端设备可以理解为SL中的信息接收端，所述第一终端设备以及所述第二终端设备均可以理解为用户端(UE，User Equipment)，也可称之为移动终端(Mobile Terminal)、移动用户设备等，可以经，例如，无线接入网(RAN，Radio Access Network)与一个或多个核心网进行通信，用户设备可以是移动终端，如移动电话(或称为“蜂窝”电话)和具有移动终端的计算机，例如，可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置，用户设备也可以是无人机、飞行器等飞行设备，它们与无线接入网交换语言和/或数据。
网络设备可以理解为核心网，也可以理解为基站，其中，基站可以是GSM或CDMA中的基站(BTS，Base Transceiver Station)，也可以是WCDMA中的基站(NodeB)，还可以是LTE中的演进型基站(eNB或e-NodeB，evolutional Node B)及5G基站(gNB)，本公开并不限定，但为描述方便，下述实施例以gNB为例进行说明。
旁链路(SL，sidelink)可以理解为侧链路，也可以理解为副链路。
以下结合附图，详细说明本公开各实施例提供的技术方案。
图1为本公开的一个实施例信息指示方法的流程示意图，所述方法应用于第一终端设备，所述方法如下所述。
步骤102：确定传输特征参数，所述传输特征参数用于在旁链路SL上发送物理信道，所述传输特征参数包括子载波间隔SCS、循环前缀CP、部分带宽BWP以及解调参考信号DMRS的配置参数中的至少一种。
其中，在SL上发送的物理信道可以包括：物理旁链路发现信道(PSDCH physical sidelink discovery channel)、物理旁链路控制信道(PSCCH，physical sidelink control channel)以及物理旁链路数据信道(PSSCH，physical sidelink data channel)中的至少一种，还可以包括SL上的其他物理信道，这里不再一一举例说明。
在步骤102中，第一终端设备可以通过选择的方式确定所述输特征参数。
例如，第一终端设备可以选择15KHz的SCS以及低密度的DMRS向第二终端设备发送PSCCH以及PSSCH中的至少一种，其中，15KHz的SCS以及低密度的DMRS即为确定的所述传输特征参数。
应理解，第一终端设备也可以通过其他方式确定所述传输特征参数，例如，第一终端设备可以通过预先设置的方式确定所述传输特征信息(即将预先设置的传输特征参数视为确定的所述传输特征参数)，也可以根据当前的移动速度确定所述传输特征参数(例如，第一终端设备当前的移动速度较快，则可以使用较高的SCS或DMRS)，这里不再一一举例说明。
第一终端设备确定的所述传输特征参数可以包括SCS、CP、BWP以及DMRS的配置参数中的至少一种，其中，SCS可以是15KHz、30KHz、60KHz、120KHz以及240KHz中的其中一种，DMRS的配置参数可以包含时域配置参数和频域配置参数，所述时域配置参数可以包含DMRS的正交频分复用(OFDM，Orthogonal Frequency Division Multiplexing)符号的个数以及DMRS的时域位置参数中的至少一种，所述频域配置参数也可以包含DMRS的子载波数目以及频域位置参数中的至少一种。
本公开实施例中，第一终端设备在确定所述传输特征参数时：若第一终 端设备发送PSCCH，则可以确定用于发送PSCCH的传输特征参数；若第一终端设备发送PSSCH，则可以确定用于发送PSSCH的传输特征参数；若第一终端设备发送PSDCH，则可以确定用于发送PSDCH的传输特征参数。其中，用于发送PSCCH的传输特征参数、用于发送PSSCH的传输特征参数以及用于发送PSDCH的传输特征参数可以相同，也可以不同。
第一终端设备在确定所述传输特征参数后，可以执行S104。
S104：发送传输特征信息，所述传输特征信息用于指示所述传输特征参数。
在步骤104中，第一终端设备在确定所述传输特征参数后，可以发送传输特征信息，该传输特征信息可以用于指示所述传输特征参数。
其中，第一终端设备可以以向外广播的方式发送所述传输特征信息，也可以向第二终端设备发送所述传输特征信息，第二终端设备的个数可以是一个，也可以是多个。本公开的以下实施例可以以向一个第二终端设备发送所述传输特征信息为例进行说明。
在本公开的第一个实施例中，第一终端设备发送传输特征信息，可以包括：
发送广播信息，所述广播信息中携带所述传输特征参数。
本实施例中，第一终端设备可以将所述传输特征参数携带在广播信息中，并向第二终端设备发送所述广播信息，通过广播信息向第二终端设备指示所述传输特征参数。
所述广播信息可以是旁链路主信息块(MIB-SL，Master Information Block sidelink)，也可以是车联网旁链路主信息块(MIB-SL-V2X，Master Information Block sidelink vehicle to everything)，还可以是物理旁链路广播信道(PSBCH，physical sidelink broadcast channel)，这里不做具体限定。
以第一终端设备指示的传输特征参数为SCS为例，第一终端设备可以在MIB-SL中采用1个比特表示SCS，其中，在低频段上，可以采用“0”表示SCS为15KHz，采用“1”表示SCS为30KHz；在高频段上，可以采用“0”表示SCS为60KHz，采用“1”表示SCS为120KHz。
以第一终端设备指示的传输特征参数为SCS和DMRS的配置参数为例， 第一终端设备可以在MIB-SL中采用两个比特表示SCS和DMRS的配置参数，其中，在低频段上，可以采用“00”表示SCS为15KHz，1个DMRS符号，采用“01”表示SCS为15KHz，2个DMRS符号，采用“10”表示SCS为30KHz，3个DMRS符号，采用“11”表示SCS为30KHz，4个DMRS符号。
第一终端设备通过所述广播信息向第二终端设备指示的传输特征参数，可以是在SL上向第二终端设备发送PSCCH时需要使用的传输特征参数，也可以向第二终端设备发送PSSCH时需要使用的传输特征参数，还可以是向第二终端设备发送PSCCH以及PSSCH时需要使用的传输特征参数。
其中，若第一终端设备向第二终端设备指示的传输特征参数包含SCS、CP、BWP中的至少一种以及DMRS的配置参数，那么，可以将SCS、CP、BWP中的至少一种与DMRS的配置参数进行独立编码，也可以联合编码，这里不做具体限定。
在本公开的第二个实施例中，若第一终端设备仅指示用于在SL上向第二终端设备发送PSSCH的传输特征参数，则第一终端设备发送传输特征信息，可以包括：
发送所述PSCCH，所述PSCCH中携带所述传输特征参数。
在本实施例中，第一终端设备可以通过PSCCH将用于发送PSSCH的传输特征参数指示给第二终端设备。具体地，第一终端设备在发送PSCCH时，可以将用于发送PSSCH的传输特征参数携带在PSCCH中，并将所述PSCCH发送给第二终端设备，通过PSCCH向第二终端设备指示用于发送PSSCH的传输特征参数。
第一终端设备在发送PSCCH时，具体可以发送旁链路控制信息(SCI，sidelink control information)，SCI可以由PSCCH承载。
在本公开的第三个实施例中，第一终端设备以及第二终端设备可以预先约定SCS、CP以及BWP中的至少一种与DMRS的配置参数之间的第一映射关系。
若第一终端设备将包含DMRS的配置参数的传输特征参数指示给第二终端设备，则在向第二终端设备发送传输特征信息时，所述传输特征信息可以用于指示SCS、CP以及BWP中的至少一种。
第一终端设备在向第二终端设备发送用于指示SCS、CP以及BWP中的至少一种的传输特征信息后，第二终端设备在接收到该指示时，可以根据SCS、CP以及BWP中的至少一种以及所述第一映射关系，确定与SCS、CP以及BWP中的至少一种对应的DMRS的配置参数，这样，第一终端设备可以实现将包含DMRS的配置参数的传输特征参数指示给第二终端设备。
由此可见，第一终端设备在通过传输特征信息将SCS、CP以及BWP中的至少一种指示给第二终端设备时，可以根据所述第一映射关系，将DMRS的配置参数同时指示给第二终端设备。其中，第一终端设备指示DMRS的配置参数的方式可以视为隐式指示。
需要说明的是，第一终端设备在向第二终端设备发送用于指示SCS、CP以及BWP中的至少一种的传输特征信息时，可以采用本公开的上述第一个或第二个实施例中记载的方法，这里不再重复描述。
在本公开的第四个实施例中，第一终端设备以及第二终端设备可以预先约定SCS、CP以及BWP中的至少一种与DMRS的配置参数之间的第二映射关系。其中，所述第二映射关系可以与上述第三个实施例中记载的第一映射关系相同。
若第一终端设备将包含SCS、CP以及BWP中的至少一种的传输特征参数指示给第二终端设备，则在向第二终端设备发送传输特征信息时，所述传输特征信息可以用于指示DMRS的配置参数。
第一终端设备在向第二终端设备发送用于指示DMRS的配置参数的传输特征信息后，第二终端设备在接收到该指示时，可以根据DMRS的配置参数以及所述第二映射关系，确定与DMRS的配置参数对应的SCS、CP以及BWP中的至少一种，这样，第一终端设备可以实现将包含SCS、CP以及BWP中的至少一种的传输特征参数指示给第二终端设备。
由此可见，第一终端设备在通过传输特征信息将DMRS的配置参数指示给第二终端设备时，可以根据所述第二映射关系，将SCS、CP以及BWP中的至少一种同时指示给第二终端设备。其中，第一终端设备指示SCS、CP以及BWP中的至少一种的方式可以视为隐式指示。
需要说明的是，第一终端设备在向第二终端设备发送用于指示DMRS的 配置参数的传输特征信息时，可以采用本公开的上述第一个或第二个实施例中记载的方法，这里不再重复描述。
在本公开的第五个实施例中，第一终端设备以及第二终端设备可以预先约定同步信号的序列取值与传输特征参数之间的第三映射关系。其中，所述同步信号可以包括主旁链路同步信号(PSSS，Primary Sidelink Synchronization Signal)以及辅旁链路同步信号(SSSS，Secondary Sidelink Synchronization Signal)中的至少一种，还可以包括SL上的其他同步信号，这里不再一一举例说明。
第一终端设备在向第二终端设备发送传输特征信息时，所述传输特征信息中可以包括所述同步信号(或者，可以理解为第一终端设备发送的传输特征信息即为所述同步信号)。
第一终端设备在向第二终端设备发送包含所述同步信号的传输特征信息后，第二终端设备在接收到该同步信号时，可以得到所述同步信号的序列取值，根据所述同步信号的序列取值以及所述第三映射关系，可以确定与所述同步信号的序列取值对应的传输特征参数。
由此可见，第一终端设备可以根据所述第三映射关系，通过向第二终端设备发送包含同步信号的传输特征信息，将传输特征参数指示给第二终端设备。其中，第一终端设备通过同步信号向第二终端设备指示传输特征参数的方式可以视为隐式指示。
在本公开的第六个实施例中，第一终端设备以及第二终端设备可以预先约定在发送广播信息和同步信号时，广播信息和同步信号两者的时域位置及频域位置，与传输特征参数之间的第四映射关系，其中，所述同步信号可以包括PSSS以及SSSS中的至少一种，也可以包含SL上的其他同步信号。
第一终端设备在向第二终端设备发送传输特征信息时，所述传输特征信息中可以包括广播信息和同步信号(或者，可以理解为第一终端设备发送的传输特征信息即为广播信息和同步信号)。
第一终端设备在向第二终端设备发送包含所述广播信息以及所述同步信号的传输特征信息后，第二终端设备在接收到所述广播信息以及所述同步信号时，可以确定第一终端设备在发送所述广播信息以及所述同步信号时，所 述广播信息以及所述同步信号在时域以及频域上的位置关系，根据所述位置关系以及所述第四映射关系，可以确定与所述位置关系对应的传输特征参数。
由此可见，第一终端设备可以根据所述第四映射关系，通过向第二终端设备发送包含广播信息以及同步信号的传输特征信息，将传输特征参数指示给第二终端设备。其中，第一终端设备通过广播信息以及同步信号向第二终端设备指示传输特征参数的方式可以视为隐式指示。
在本公开的第七个实施例中，第一终端设备以及第二终端设备可以预先约定在发送广播信息时，第一终端设备使用的SCS、CP、BWP以及DMRS的配置参数中的至少一种与传输特征参数之间的第五映射关系。
第一终端设备在向第二终端设备发送传输特征信息时，可以向第二终端设备发送广播信息。第二终端设备在接收到所述广播信息后，可以确定第一终端设备在发送所述广播信息时使用的SCS、CP、BWP以及DMRS的配置参数中的至少一种，根据所述第五映射关系，可以确定第一终端设备指示所述传输特征参数。
由此可见，第一终端设备可以根据所述第五映射关系，通过向第二终端设备发送广播信息，将传输特征参数指示给第二终端设备。其中，第一终端设备通过广播信息向第二终端设备指示传输特征参数的方式可以视为隐式指示。
在本公开的第八个实施例中，第一终端设备以及第二终端设备可以预先约定在发送同步信号时，第一终端设备使用的SCS、CP、BWP以及DMRS的配置参数中的至少一种与传输特征参数之间的第六映射关系。其中，所述同步信号可以包括PSSS以及SSSS中的至少一种，也可以包含SL上的其他同步信号。
第一终端设备在向第二终端设备发送传输特征信息时，所述传输特征信息中可以包括所述同步信号。第二终端设备在接收到所述同步信号后，可以确定第一终端设备在发送所述同步信号时使用的SCS、CP、BWP以及DMRS的配置参数中的至少一种，根据所述第六映射关系，可以确定第一终端设备指示所述传输特征参数。
由此可见，第一终端设备可以根据所述第六映射关系，通过向第二终端 设备发送同步信号，将传输特征参数指示给第二终端设备。其中，第一终端设备通过同步信号向第二终端设备指示传输特征参数的方式可以视为隐式指示。
需要说明的是，上述记载的六个实施例的信息指示方法，可以相互结合，也就是说，可以采用上述六个实施例中的两种或更多种方法向第二终端设备指示传输特征参数。
以采用广播信息以及PSSCH向第二终端设备指示传输特征参数为例，第一终端设备可以向第二终端设备发送MIB-SL信息，MIB-SL信息中可以携带用于发送PSCCH的SCS的指示，例如，MIB-SL信息中可以采用一个比特表示SCS。第一终端设备在发送MIB-SL信后，可以按照MIB-SL中指示的SCS向第二终端设备发送PSCCH，其中，第一终端设备可以在PSCCH中携带用于发送PSSCH的SCS的指示。这样，第一终端设备可以实现向第二终端设备指示用于发送PSCCH的SCS以及用于发送PSSCH的SCS。
应理解，在实际应用中，第一终端设备还可以采用其他组合方式向第二终端设备指示传输特征参数，这里不再一一举例说明。
在本公开的一个实施例中，第一终端设备在通过上述任一个或多个实施例中记载的方法向第二终端设备发送传输特征信息，并通过传输特征信息指示传输特征参数后，所述方法可以包括：
更新所述传输特征参数；
按照设定时间周期发送更新后的传输特征信息，所述更新后的传输特征信息用于指示更新后的所述传输特征参数。
具体地，第一终端设备确定的传输特征参数并不是固定不变的，当第一终端设备改变其在S102中确定的传输特征参数时，可以更新所述传输特征参数，得到更新后的传输特征参数。
在得到更新后的传输特征参数后，第一终端设备可以按照设定时间周期将更新后的传输特征参数指示给第二终端设备。具体地，第一终端设备可以向第二终端设备发送传输特征信息，传输特征信息可以用于指示更新后的传输特征参数。其中，由于该传输特征信息指示的传输特征参数发生变化，因此，该传输特征信息可以理解为更新后的传输特征信息。
第一终端设备在按照设定时间周期向第二终端设备发送更新后的传输特征信息时，可以采用上述记载的六个实施例中任一种方法发送，这里不再重复描述。
例如，第一终端设备可以将更新后的传输特征参数携带在广播信息中，得到更新后的广播信息，并按照设定时间周期向第二终端设备发送该更新后的广播信息；再例如，第一终端设备可以改变同步信号的序列取值，并按照设定时间周期向第二终端设备发送更新后的传输特征信息，该更新后的传输特征信息中包含更新序列取值后的同步信号。
所述设定时间周期可以是第一终端设备向第二终端设备发送传输特征信息的周期的整数倍。其中，若传输特征信息为广播信息，则所述设定时间周期可以是发送广播信息的周期的整数倍；若传输特征信息中包含同步信号，则所述设定时间周期可以是发送同步信号的周期的整数倍。
以第一终端设备通过广播信息向第二终端设备指示传输特征参数为例，如果第一终端设备发送广播信息的周期为T，且在t0+T时刻发送携带传输特征参数的广播信息，那么，第一终端设备在向第二终端设备发送更新后的广播信息(携带有更新后的传输特征参数)时，可以每隔T且在t0+nT(n为大于0的整数)时刻发送(例如，可以在t0+2T，t0+3T，t0+4T，……，t0+nT时刻发送)，也可以每隔mT且在t0+m*nT(m，n均为大于0的整数)时刻发送(例如，可以在t0+2T，t0+4T，t0+6T，……，t0+m*nT时刻发送)，也可以在t0+nT(n为大于0的整数，且可以随机选择)时刻发送(例如，可以在t0+2T，t0+3T，t0+5T，……，t0+nT时刻发送)。
同样的，如果第一终端设备通过同步信号向第二终端设备指示传输特征参数，同步信号的发送周期为T1，且在t1+T1时刻发送同步信号，那么，第一终端设备在发送更新序列取值后的同步信号时，可以每隔T1且在t1+nT1(n为大于0的整数)时刻发送，也可以每隔mT且在t0+m*nT(m，n均为大于0的整数)时刻发送，也可以在t0+nT(n为大于0的整数，且可以随机选择)时刻发送。
在本公开的一个实施例中，第一终端设备在通过上述任一个或多个实施例中记载的方法向第二终端设备发送传输特征信息，并通过传输特征信息指 示传输特征参数后，所述方法还可以包括：
根据参考因子更新所述传输特征参数，所述参考因子包括移动特性和业务特性中的至少一种；
发送更新后的传输特征信息，所述更新后的传输特征信息用于指示更新后的所述传输特征参数。
在本实施例中，第一终端设备在通过传输特征信息向第二终端设备指示传输特征参数后，可以根据参考因子对传输特征参数进行更新。其中，所述参考因子可以是第一终端设备的参考因子，也可以是第一终端设备以及第二终端设备的参考因子，所述参考因子具体可以包括移动特征和业务特性中的至少一种。
以所述参考因子为第一终端设备的参考因子为例，所述移动特性可以是第一终端设备的移动速度，也可以是第一终端设备的地理位置信息等，所述业务特性可以是第一终端设备的服务质量(QoS，Quality of Service)，也可以是网络切片(network slice)。
第一终端设备在根据参考因子更新传输特征参数时，具体地，第一终端设备可以确定网络设备预配置参考因子，当参考因子发生变化时，可以根据变化后的参考因子更新传输特征参数。
例如，网络预配置的参考因子的门限值是V0，当参考因子大于或小于V0时，可以更新传输特征参数。
本实施例中，为了便于对传输特征参数进行更新，还可以预先设置一个阈值，当参考因子的变化超过该阈值时，更新传输特征参数。
例如，网路预配置的参考因子的门限值为V0，阈值为alpha，那么，当参考因子大于V0+alpha或小于V0-alpha时，更新传输特征参数(例如，当参考因子大于V0+alpha时，可以增大SCS，增加DMRS的密度；当参考因子小于V0-alpha时，可以减小SCS，减小DMRS的密度)。
需要说明的是，本实施例中，第一终端设备在根据参考因子更新传输特征参数后，也可以按照上述实施例记载的所述设定时间周期将更新后的传输特征参数指示给第二终端设备。
例如，第一终端设备在t0+T时刻，在低频段上向第二终端设备发送信息 时采用15kHz的SCS，1个时隙内DMRS的数目为2(2个DMRS符号)，在t0+t1(ti大于T且小于2T)时刻，若第一终端设备的移动速度v变大，且大于v0+alpha，则可以改变SCS为30kHz和1个时隙内DMRS的数目为4，以发送MIB-SL的周期为最小粒度，可以在t0+2T时刻将更新后的SCS以及DMRS指示给第二终端设备。
之后，在t0+t2(t1大于2T且小于4T)时刻，当第一终端设备的移动速度v变小，且小于v0-alpha时，则可以改变SCS为15kHz和1个时隙内DMRS的数目为2，以MIB-SL的周期为最小粒度，可以在t0+4T时刻更新后的SCS以及DMRS指示给第二终端设备。
第一终端设备在通过上述记载的方法向第二终端设备发送传输特征信息后，在向第二终端设备发送SL上的物理信道时，可以使用所述传输特征信息中指示的传输特征参数进行发送。
本公开实施例提供的技术方案，在SL中，发送端在确定传输特征参数后，可以发送传输特征信息，通过所述传输特征信息指示所述传输特征参数，其中，所述传输特征参数可以包括SCS、CP、BWP以及DMRS的配置参数中的至少一种。这样，发送端可以将其使用的SCS、CP、BWP以及DMRS的配置参数中的至少一种指示给接收端，接收端接收到发送端的指示后，可以根据指示对接收到的信息进行解调，减少了接收端的盲检次数，从而可以降低接收端信息解调的复杂度和时延，提高接收端获取信息的效率。
图2为本公开的一个实施例信息指示方法的流程示意图。所述信息指示方法应用于网络设备，所述方法如下所述。
S202：配置传输特征参数，所述传输特征参数用于在SL上发送或解调物理信道，所述传输特征参数包括SCS、CP、BWP以及DMRS的配置参数中的至少一种。
在步骤202中，网络设备可以预先配置传输特征参数，所述传输特征参数可以用于终端设备在SL上发送或解调物理信道，所述物理信道可以包括PSDCH、PSCCH以及PSSCH中的至少一种，还可以包括SL上的其他物理信道，这里不再一一举例说明。所述传输特征参数可以包括SCS、CP、BWP以及DMRS的配置参数中的至少一种。
其中，SCS可以是15KHz、30KHz、60KHz、120KHz以及240KHz中的其中一种，DMRS的配置参数可以包含时域配置参数和频域配置参数，所述时域配置参数可以包含DMRS的OFDM符号的个数以及DMRS的时域位置参数中的至少一种，所述频域配置参数也可以包含DMRS的子载波数目以及频域位置参数中的至少一种。
以网络设备配置SCS、CP、BWP以及DMRS的配置参数为例，网络设备在预先配置BWP时，可以为每一个BWP配置SCS的大小，CP长度以及DMRS的配置参数。
例如，在低频段，网络设备可以配置BWP0采用15kHz的SCS，CP长度为t1，1个时隙内DMRS的数目为2；BWP1采用15kHz的SCS，CP长度为t2，1个时隙内DMRS的数目为2；BWP2采用30kHz的SCS，CP长度为t3，1个时隙内DMRS的数目为4；BWP3采用30kHz的SCS，CP长度为t4，1个时隙内DMRS的数目为4。
在高频段，网络设备可以配置BWP0采用60kHz的SCS，CP长度为t1，1个时隙内DMRS的数目为2；BWP1采用120kHz的SCS，CP长度为t2，1个时隙内DMRS的数目为4；BWP2采用60kHz的SCS，CP长度为t3，1个时隙内DMRS的数目为2；BWP3采用120kHz的SCS，CP长度为t4，1个时隙内DMRS的数目为4。
网络设备在配置传输特征参数后，可以执行S204。
S204：发送传输特征信息，所述传输特征信息用于指示所述传输特征参数。
在步骤204中，网络设备在配置传输特征参数后，可以向终端设备发送传输特征信息，所述传输特征信息用于指示所述传输特征参数。其中，网络设备可以向第一终端设备以及第二终端设备发送所述传输特征信息，以便于第一终端设备根据指示发送SL上的物理信道，第二终端设备根据指示解调SL上的物理信道。
在本公开的一个实施例中，网络设备发送传输特征信息，可以包括：
发送无线资源控制RRC信息，所述RRC信息中携带所述传输特征参数；或，
发送系统消息块SIB信息，所述SIB信息中携带所述传输特征参数。
具体地，网络设备在配置所述传输特征参数后，可以将所述传输特征参数携带在RRC信息中，通过发送RRC信息将所述传输特征参数指示给第一终端设备以及第二终端设备；或者，网络设备也可以将所述传输特征信息携带在SIB信息中，通过发送SIB信息将所述传输特征参数指示给第一终端设备以及第二终端设备。
在实际应用中，网络设备可以采用以上两种方式中的任一种向第一终端设备以及第二终端设备发送所述传输特征信息。
网络设备在发送传输特征信息后，所述方法还可以包括：
更新所述传输特征参数；
发送更新后的传输特征信息，所述更新后的传输特征信息用于指示更新后的所述传输特征参数。
具体地，网络设备预先配置的传输特征参数并不是固定不变的，网络设备可以定期或不定期地更新预先配置的传输特征参数，并得到更新后的传输特征参数。
网络设备在得到更新后的传输特征参数后，可以将更新后的传输特征参数指示给第一终端设备以及第二终端设备，具体地，网络设备可以向第一终端设备以及第二终端设备发送用于指示更新后的传输特征参数的传输特征信息，该传输特征信息可以视为更新后的传输特征信息。
网络设备在向第一终端设备以及第二终端设备发送更新后的传输特征信息时，可以向第一终端设备以及第二终端设备发送更新后的RRC信息，其中，更新后的RRC信息中携带更新后的传输特征参数；或者，可以向第一终端设备以及第二终端设备发送更新后的SIB信息，其中，更新后的SIB信息中携带更新后的传输特征参数。
这样，第一终端设备以及第二终端设备在接收到网络设备发送的RRC信息或SIB信息后，可以从RRC信息或SIB信息中获取网络设备配置的传输特征参数。
本公开实施例提供的技术方案，在SL中，网络设备可以预先配置传输特征参数，通过传输特征信息指示预先配置的所述传输特征参数，其中，所述 传输特征参数包括SCS、CP、BWP以及DMRS的配置参数中的至少一种。这样，网络设备可以将所述传输特征信息指示给发送端和接收端，发送端可以根据指示向接收端发送信息，接收端可以根据指示解调接收到的信息，减少了接收端的盲检次数，从而可以降低接收端信息解调的复杂度和时延，提高接收端获取信息的效率。
图3为本公开的一个实施例信息指示方法的流程示意图。所述信息指示方法应用于第二终端设备，所述方法如下所述。
S302：接收传输特征信息，所述传输特征信息用于指示传输特征参数，所述传输特征参数包括SCS、CP、BWP以及DMRS的配置参数中的至少一种。其中，SCS可以是15KHz、30KHz、60KHz、120KHz以及240KHz中的其中一种，DMRS的配置参数可以包含时域配置参数和频域配置参数，所述时域配置参数可以包含DMRS的OFDM符号的个数以及DMRS的时域位置参数中的至少一种，所述频域配置参数也可以包含DMRS的子载波数目以及频域位置参数中的至少一种。
在本公开的一个实施例中，第二终端设备接收传输特征信息，可以包括：
从第一终端设备接收所述传输特征信息。
具体地，第一终端设备在根据图1所示实施例中记载的方法向第二终端设备发送传输特征信息后，第二终端设备可以从第一终端设备接收所述传输特征信息，所述传输特征信息用于指示传输特征参数，所述传输特征参数包括SCS、CP、BWP以及DMRS的配置参数中的至少一种。
在本公开的另一个实施例中，第二终端设备接收传输特征信息，可以包括：
从网络设备接收所述传输特征信息。
具体地，网络设备在根据图2所示实施例中记载的方法向第二终端设备发送传输特征信息后，第二终端设备可以从网络设备接收所述传输特征信息，所述传输特征信息用于指示传输特征参数，所述传输特征参数包括SCS、CP、BWP以及DMRS的配置参数中的至少一种。
第一终端设备从网络设备接收所述传输特征信息，可以包括：
从所述网络设备接收RRC信息，所述RRC信息中携带所述传输特征信 息；或，
从所述网络设备接收SIB信息，所述SIB信息中携带所述传输特征信息。
具体地，如果网络设备将传输特征信息携带在RRC信息中，并将RRC信息发送给第二终端设备，则第二终端设备可以从网络设备接收RRC信息；如果网络设备将传输特征信息携带在SIB信息中，并将SIB信息发送给第二终端设备，则第二终端设备可以从网络设备接收SIB信息。
在本公开的一个实施例中，第二终端设备从第一终端设备接收所述传输特征信息，还可以包括：
按照设定时间周期从所述第一终端设备接收更新后的传输特征信息，所述更新后的传输特征信息用于指示更新后的所述传输特征参数，更新后的所述传输特征参数由所述第一终端设备对所述传输特征参数进行更新得到。
具体地，第一终端设备在按照图1所示的实施例中记载的方法向第二终端设备发送传输特征信息后，可以按照图1所示的实施例中记载的方法对传输特征参数进行更新，并将更新后的传输特征信息发送给第二终端设备，其中，更新后的传输特征信息可以用于指示更新后的传输特征参数。
此时，第二终端设备可以从第一终端设备接收更新后的传输特征信息，以便于根据更新后的传输特征信息更新第一终端设备指示的传输特征参数。
在本公开的另一个实施例中，第二终端设备从网络设备接收所述传输特征信息，还可以包括：
从所述网络设备接收更新后的传输特征信息，所述更新后的传输特征信息用于指示更新后的所述传输特征参数，更新后的所述传输特征参数由所述网络设备对所述传输特征参数进行更新得到。
具体地，网络设备在按照图2所示的实施例中记载的方法向第二终端设备发送传输特征信息后，可以按照图2所示的实施例中记载的方法对传输特征参数进行更新，并将更新后的传输特征信息发送给第二终端设备，其中，更新后的传输特征信息可以用于指示更新后的传输特征参数。
此时，第二终端设备可以从网络设备接收更新后的传输特征信息，以便于根据更新后的传输特征信息更新网络设备指示的传输特征参数。其中，第二终端设备可以从网络设备接收更新后的传输特征信息，可以是从网络设备 接收更新后的RRC信息，更新后的RRC信息中携带更新后的传输特征参数，也可以是从网络设备接收更新后的SIB信息，更新后的SIB信息中携带更新后的传输特征参数。
第二终端设备在从第一终端设备或网络设备接收所述传输特征信息后，可以执行S304。
S304：根据所述传输特征信息，确定所述传输特征参数，所述传输特征参数用于对第一终端设备在SL上发送的物理信道进行解调。
在步骤304中，第二终端设备在从第一终端设备或网络设备接收所述传输特征信息后，可以根据所述传输特征信息确定传输特征参数，以便于第二终端设备可以根据所述传输特征参数对第一终端设备在SL上发送的物理信道进行解调。其中，所述物理信道可以包括：PSDCH、PSCCH以及PSSCH中的至少一种，还可以包括SL上的其他物理信道，这里不再一一举例说明。
在本公开的第一个实施例中，若第二终端设备从第一终端设备接收所述传输特征信息，则根据所述传输特征信息，确定所述传输特征参数，可以包括：
从所述第一终端设备接收广播信息，所述广播信息中携带所述传输特征参数；
根据所述广播信息，确定所述传输特征参数。
具体地，第一终端设备可以采用图1所示实施例中记载的方法向第二终端设备发送广播信息，所述广播信息中可以携带所述传输特征参数。第二终端设备在接收到广播信息后，可以对广播信息进行解调和分析，并从广播信息中获取其携带的所述传输特征参数。
这样，第二终端设备在从第一终端设备接收PSCCH以及PSSCH中的至少一种后，可以根据第一终端设备指示的传输特征参数对接收到的PSCCH以及PSSCH中的至少一种进行解调。
在本公开的第二个实施例中，若第二终端设备从第一终端设备接收所述传输特征信息，且，所述传输特征参数用于对所述第一终端设备发送的PSSCH进行解调，则，根据所述传输特征信息，确定所述传输特征参数，可以包括：
从所述第一终端设备接收PSCCH，所述PSCCH中携带所述传输特征参 数；
根据所述PSCCH，确定所述传输特征参数。
具体地，第一终端设备可以采用图1所示实施例中记载的方法向第二终端设备发送PSCCH，PSCCH中可以携带用于对PSSCH进行解调的传输特征参数。第二终端设备在接收到PSCCH后，可以对PSCCH进行解调和分析，并从PSCCH中获取其携带的传输特征参数。
这样，第二终端设备在从第一终端设备接收PSSCH后，可以根据第一终端设备指示的传输特征参数对接收到的PSSCH进行解调。
在本公开的第三个实施例中，若第二终端设备从第一终端设备接收所述传输特征信息，则第二终端设备以及第一终端设备可以预先约定SCS、CP以及BWP中的至少一种与DMRS的配置参数之间的第一映射关系。
第一终端设备向第二终端设备指示的传输特征参数可以包括DMRS的配置参数，第二终端设备接收到的传输特征信息可以用于指示SCS、CP以及BWP中的至少一种。
这样，第一终端设备根据所述传输特征信息，确定所述传输特征参数，可以包括：根据所述传输特征信息和第一映射关系，确定所述传输特征参数。
具体地，第一终端设备在根据图1所示的第三个实施例记载的方法向第二终端设备发送传输特征信息后，第二终端设备可以得到第一终端设备指示的SCS、CP以及BWP中的至少一种，之后，可以根据预先约定的所述第一映射关系，确定与SCS、CP以及BWP中的至少一种对应的DMRS的配置参数，这样，第二终端设备可以获得包含SCS、CP以及BWP中的至少一种以及DMRS的配置参数的传输特征参数。
在本公开的第四个实施例中，若第二终端设备从第一终端设备接收所述传输特征信息，则第二终端设备以及第一终端设备可以预先约定SCS、CP以及BWP中的至少一种与DMRS的配置参数之间的第二映射关系。
第一终端设备向第二终端设备指示的传输特征参数可以包括SCS、CP以及BWP中的至少一种，第二终端设备接收到的传输特征信息可以用于指示DMRS的配置参数。
这样，第一终端设备根据所述传输特征信息，确定所述传输特征参数， 可以包括：根据所述传输特征信息和第二映射关系，确定所述传输特征参数。
具体地，第一终端设备在根据图1所示的第四个实施例记载的方法向第二终端设备发送传输特征信息后，第二终端设备可以得到第一终端设备指示的DMRS的配置参数，之后，可以根据预先约定的所述第二映射关系，确定与DMRS的配置参数对应的SCS、CP以及BWP中的至少一种，这样，第二终端设备可以获得包含SCS、CP以及BWP中的至少一种以及DMRS的配置参数的传输特征参数。
在本公开的第五个实施例中，若第二终端设备从第一终端设备接收所述传输特征信息，则第二终端设备以及第一终端设备可以预先约定同步信号的序列取值与传输特征参数之间的第三映射关系。其中，所述同步信号可以包括PSSS以及SSSS中的至少一种，还可以包括SL上的其他同步信号。
第二终端设备从第一终端设备接收的传输特征信息可以包括同步信号(或者，可以理解为第一终端设备发送的传输特征信息即为同步信号)，所述同步信号包括PSSS以及SSSS中的至少一种。第二终端设备根据所述传输特征信息，确定所述传输特征参数，可以包括：根据所述传输特征信息和第三映射关系，确定所述传输特征参数。
具体地，第一终端设备在根据图1所示的第五个实施例记载的方法向第二终端设备发送包含同步信号的传输特征信息后，第二终端设备可以得到所述同步信号的序列取值，之后，可以根据预先约定的所述第三映射关系，确定与所述同步信号的序列取值对应的传输特征参数，这样，第二终端设备可以通过同步信号获得传输特征参数。
在本公开的第六个实施例中，若第二终端设备从第一终端设备接收所述传输特征信息，则第二终端设备以及第一终端设备可以预先约定在发送广播信息和同步信号时，广播信息和同步信号两者的时域位置及频域位置，与传输特征参数之间的第四映射关系，其中，所述同步信号可以包括PSS以及SSS中的至少一种，还可以包括SL上的其他同步信号。
第二终端设备从第一终端设备接收的传输特征信息可以包括广播信息和所述同步信号(或者，可以理解为第一终端设备发送的传输特征信息即为广播信息和同步信号)。
这样，第一终端设备根据所述传输特征信息，确定所述传输特征参数，可以包括：根据所述传输特征信息和第四映射关系，确定所述传输特征参数。
具体地，第一终端设备在根据图1所示的第六个实施例记载的方法向第二终端设备发送包含广播信息以及同步信号的传输特征信息后，第二终端设备可以得到第一终端设备在发送所述广播信息以及所述同步信号时，所述广播信息以及所述同步信号在时域以及频域上的位置关系，之后，可以根据预先约定的所述第四映射关系，确定与所述位置关系对应的传输特征参数，这样，第二终端设备可以通过广播信息以及同步信号的发送时域位置及频域位置关系得到传输特征参数。
在本公开的第七个实施例中，若第二终端设备从第一终端设备接收广播信息，则第二终端设备以及第一终端设备可以预先约定，第一终端设备发送广播信息时使用的SCS、CP、BWP以及DMRS的配置参数中的至少一种与所述传输特征参数之间的第五映射关系。
第二终端设备从第一终端设备接收到广播信息后，根据所述传输特征信息，确定所述传输特征参数，可以包括：根据所述广播信息和第五映射关系，确定所述传输特征参数。
具体地，第一终端设备在向第二终端设备发送广播信息后，第二终端设备通过解调所述广播信息确定第一终端设备发送所述广播信息时使用的SCS、CP、BWP以及DMRS的配置参数中的至少一种，根据所述第五映射关系，第二终端设备可以确定与第一终端设备使用的SCS、CP、BWP以及DMRS的配置参数中的至少一种对应的传输特征参数，这样，第二终端设备可以通过广播信息获得传输特征参数。
在本公开的第八个实施例中，若第二终端设备从第一终端设备接收的传输特征信息包括同步信号，则第二终端设备以及第一终端设备可以预先约定，第一终端设备发送同步信号时使用的SCS、CP、BWP以及DMRS的配置参数中的至少一种与所述传输特征参数之间的第六映射关系。
第二终端设备从第一终端设备接收到传输特征信息后，根据所述传输特征信息，确定所述传输特征参数，可以包括：根据所述传输特征信息和第六映射关系，确定所述传输特征参数。
具体地，第一终端设备在向第二终端设备发送传输特征信息后，第二终端设备通过解调所述传输特征信息确定第一终端设备发送所述同步信号时使用的SCS、CP、BWP以及DMRS的配置参数中的至少一种，根据所述第六映射关系，第二终端设备可以确定与第一终端设备使用的SCS、CP、BWP以及DMRS的配置参数中的至少一种对应的传输特征参数，这样，第二终端设备可以通过同步信号获得传输特征参数。
若第二终端设备通过S302中记载的方法从网络设备接收所述传输特征信息，则，第二终端设备可以从RRC信息或SIB信息中获取网络设备配置的传输特征参数。
第二终端设备在根据所述传输特征信息确定传输特征参数后，在SL中，从第一终端设备接收到PSCCH以及PSSCH中的至少一种后，可以根据确定的传输特征参数对接收到PSCCH以及PSSCH中的至少一种进行解调，以避免盲检，提高获取信息的效率。
本公开实施例提供的技术方案，在SL中，接收端接收到传输特征信息后，确定传输特征信息指示的传输特征参数，其中，所述传输特征参数可以包括SCS、CP、BWP以及DMRS的配置参数中的至少一种。这样，接收端接收到发送端的信息后，可以根据指示对接收到的信息进行解调，减少了接收端的盲检次数，从而可以降低接收端信息解调的复杂度和时延，提高接收端获取信息的效率。
在本公开的一个实施例中，第一终端设备以及第二终端设备还可以默认设置相同的传输特征参数，例如，第一终端设备以及第二终端设备可以在出厂时具有默认设置的传输特征参数，其中，所述传输特征参数包括SCS、CP、BWP以及DMRS的配置参数中的至少一种，所述传输特征参数可以用于第一终端设备在SL上向第二终端设备发送物理信道，并用于第二终端设备对第一终端设备SL上发送的物理信道进行解调。其中，所述物理信道可以包括：PSDCH、PSCCH以及PSSCH中的至少一种，还可以包括SL上的其他物理信道。
这样，通过将第一终端设备和第二终端设备默认设置相同的传输特征参数，使得第一终端设备在向第二终端设备发送信息时，可以根据默认设置的 传输特征参数进行发送，第二终端设备在从第一终端设备接收信息后，可以使用默认设置的传输特征参数进行解调，减少了第二终端设备的盲检次数，从而可以降低第二终端设备信息解调的复杂度和时延，提高第二终端设备获取信息的效率。
需要说明的是，第一终端设备以及第二终端设备默认设置的传输特征参数并不是固定不变的，当第一终端设备或网络设备更新传输特征参数，并通过图1或图2所示实施例记载的内容，将更新后的传输特征参数指示给第二终端设备后，更新后的传输特征参数可以覆盖第一终端设备以及第二终端设备默认设置的传输特征参数，此时，第一终端设备以及第二终端设备可以使用更新后的传输特征参数传输信息。
上述对本说明书特定实施例进行了描述。其它实施例在所附权利要求书的范围内。在一些情况下，上述实施例中记载的动作或步骤可以按照不同于实施例中的顺序来执行并且仍然可以实现期望的结果。另外，在附图中描绘的过程不一定要求示出的特定顺序或者连续顺序才能实现期望的结果。在某些实施方式中，多任务处理和并行处理也是可以的或者可能是有利的。
图4为本公开的一个实施例终端设备的结构示意图，所述终端设备包括：确定模块41和发送模块42，其中：
确定模块41，确定传输特征参数，所述传输特征参数用于在旁链路SL上发送物理信道，所述传输特征参数包括子载波间隔SCS、循环前缀CP、部分带宽BWP以及解调参考信号DMRS的配置参数中的至少一种；
发送模块42，发送传输特征信息，所述传输特征信息用于指示所述传输特征参数。
可选地，所述发送模块42，发送传输特征信息，包括：
发送广播信息，所述广播信息中携带所述传输特征参数。
可选地，所述传输特征参数用于在SL上发送PSSCH；
其中，所述发送模块42，发送传输特征信息，包括：
发送所述PSCCH，所述PSCCH中携带所述传输特征参数。
可选地，所述传输特征参数包括DMRS的配置参数，所述传输特征信息用于指示SCS、CP以及BWP中的至少一种，所述SCS、CP以及BWP中的 至少一种与DMRS的配置参数具有第一映射关系。
可选地，所述传输特征参数包括SCS、CP以及BWP中的至少一种，所述传输特征信息用于指示DMRS的配置参数，所述SCS、CP以及BWP中的至少一种与DMRS的配置参数具有第二映射关系。
可选地，所述传输特征信息包括同步信号，所述同步信号的序列取值与所述传输特征参数之间具有第三映射关系。
可选地，所述传输特征信息包括广播信息和同步信号，所述广播信息和所述同步信号的发送时域位置及频域位置的关系与所述传输特征参数之间具有第四映射关系。
可选地，所述发送模块42，发送传输特征信息，包括：
发送广播信息，所述第一终端设备发送所述广播信息时使用的SCS、CP、BWP以及DMRS的配置参数中的至少一种与所述传输特征参数之间具有第五映射关系。
可选地，所述传输特征信息包括同步信号，所述第一终端设备发送所述同步信号时使用的SCS、CP、BWP以及DMRS的配置参数中的至少一种与所述传输特征参数之间具有第六映射关系。
可选地，所述第一终端设备还包括：第一更新模块43，其中：
所述第一更新模块43，在所述发送模块42发送传输特征信息后，更新所述传输特征参数；
所述发送模块42，按照设定时间周期发送更新后的传输特征信息，所述更新后的传输特征信息用于指示更新后的所述传输特征参数。
可选地，所述第一终端设备还包括：第二更新模块44，其中：
所述第二更新模块44，在所述发送模块42发送传输特征信息后，根据参考因子更新所述传输特征参数，所述参考因子包括移动特性和业务特性中的至少一种；
所述发送模块42，发送更新后的传输特征信息，所述更新后的传输特征信息用于指示更新后的所述传输特征参数。
本公开实施例提供的终端设备能够实现图1的方法实施例中第一终端设备实现的各个过程，为避免重复，这里不再赘述。本公开实施例中，在SL 中，发送端在确定传输特征参数后，可以发送传输特征信息，通过所述传输特征信息指示所述传输特征参数，其中，所述传输特征参数可以包括SCS、CP、BWP以及DMRS的配置参数中的至少一种。这样，发送端可以将其使用的SCS、CP、BWP以及DMRS的配置参数中的至少一种指示给接收端，接收端接收到发送端的指示后，可以根据指示对接收到的信息进行解调，减少了接收端的盲检次数，从而可以降低接收端信息解调的复杂度和时延，提高接收端获取信息的效率。
图5为本公开的一个实施例终端设备的结构示意图，所述终端设备包括：发送模块51，其中：
发送模块51，根据默认设置的传输特征参数，在SL上发送物理信道，所述传输特征参数包括SCS、CP、BWP以及DMRS的配置参数中的至少一种。
本公开实施例中，通过将发送端和接收端默认设置相同的传输特征参数，使得发送端在向接收端发送信息时，可以根据默认设置的传输特征参数进行发送，接收端在从发送端接收信息后，可以使用默认设置的传输特征参数进行解调，减少了接收端的盲检次数，从而可以降低接收端信息解调的复杂度和时延，提高接收端获取信息的效率。
图6为本公开的一个实施例网络设备的结构示意图，所述网络设备包括：配置模块61和发送模块62，其中：
配置模块61，配置传输特征参数，所述传输特征参数用于在SL上发送或解调物理信道，所述传输特征参数包括SCS、CP、BWP以及DMRS的配置参数中的至少一种；
发送模块62，发送传输特征信息，所述传输特征信息用于指示所述传输特征参数。
可选地，所述网络设备还包括：更新模块63，其中：
所述更新模块63，更新所述传输特征参数；
所述发送模块62，发送更新后的传输特征信息，所述更新后的传输特征信息用于指示更新后的所述传输特征参数。
可选地，所述发送模块62，发送传输特征信息，包括：
发送无线资源控制RRC信息，所述RRC信息中携带所述传输特征参数；或，
发送系统消息块SIB信息，所述SIB信息中携带所述传输特征参数。
本公开实施例提供的终端设备能够实现图2的方法实施例中网络设备实现的各个过程，为避免重复，这里不再赘述。本公开实施例中，在SL中，网络设备可以预先配置传输特征参数，通过传输特征信息指示预先配置的所述传输特征参数，其中，所述传输特征参数包括SCS、CP、BWP以及DMRS的配置参数中的至少一种。这样，网络设备可以将所述传输特征信息指示给发送端和接收端，发送端可以根据指示向接收端发送信息，接收端可以根据指示解调接收到的信息，减少了接收端的盲检次数，从而可以降低接收端信息解调的复杂度和时延，提高接收端获取信息的效率。
图7为本公开的一个实施例终端设备的结构示意图，所述终端设备包括：接收模块71和确定模块72，其中：
接收模块71，接收传输特征信息，所述传输特征信息用于指示传输特征参数，所述传输特征参数包括SCS、CP、BWP以及DMRS的配置参数中的至少一种；
确定模块72，根据所述传输特征信息，确定所述传输特征参数，所述传输特征参数用于对第一终端设备在SL上发送的物理信道进行解调。
可选地，所述接收模块71，接收传输特征信息，包括：
从所述第一终端设备接收所述传输特征信息。
可选地，所述确定模块72，根据所述传输特征信息，确定所述传输特征参数，包括：
从所述第一终端设备接收广播信息，所述广播信息中携带所述传输特征参数；
根据所述广播信息，确定所述传输特征参数。
可选地，所述传输特征参数用于对所述第一终端设备发送的PSSCH进行解调；
所述确定模块72，根据所述传输特征信息，确定所述传输特征参数，包括：
从所述第一终端设备接收PSCCH，所述PSCCH中携带所述传输特征参数；
根据所述PSCCH，确定所述传输特征参数。
可选地，所述传输特征参数包括DMRS的配置参数，所述传输特征信息用于指示SCS、CP以及BWP中的至少一种；
其中，所述确定模块72，根据所述传输特征信息，确定所述传输特征参数，包括：
根据所述传输特征信息和第一映射关系，确定所述传输特征参数，所述第一映射关系为SCS、CP以及BWP中的至少一种与DMRS的配置参数之间的映射关系。
可选地，所述传输特征参数包括SCS、CP以及BWP中的至少一种，所述传输特征信息用于指示DMRS的配置参数；
其中，所述确定模块72，根据所述传输特征信息，确定所述传输特征参数，包括：
根据所述传输特征信息和第二映射关系，确定所述传输特征参数，所述第二映射关系为SCS、CP以及BWP中的至少一种与DMRS的配置参数之间的映射关系。
可选地，所述传输特征信息包括同步信号；
其中，所述确定模块72，根据所述传输特征信息，确定所述传输特征参数，包括：
根据所述传输特征信息和第三映射关系，确定所述传输特征参数，所述第三映射关系为所述同步信号的序列取值与所述传输特征参数之间的映射关系。
可选地，所述传输特征信息包括广播信息和同步信号；
其中，所述确定模块72，根据所述传输特征信息，确定所述传输特征参数，包括：
根据所述传输特征信息和第四映射关系，确定所述传输特征参数，所述第四映射关系为所述广播信息和所述同步信号的发送时域位置与频域位置关系与所述传输特征参数之间的映射关系。
可选地，所述接收模块71从所述第一终端设备接收广播信息；
其中，所述确定模块72，根据所述传输特征信息，确定所述传输特征参数，包括：
根据所述广播信息和第五映射关系，确定所述传输特征参数，所述第五映射关系为所述第一终端设备发送所述广播信息时使用的SCS、CP、BWP以及DMRS的配置参数中的至少一种与所述传输特征参数之间的映射关系。
可选地，所述传输特征信息包括同步信号；
其中，所述确定模块72，根据所述传输特征信息，确定所述传输特征参数，包括：
根据所述传输特征信息和第六映射关系，确定所述传输特征参数，所述第六映射关系为所述第一终端设备发送所述同步信号时使用的SCS、CP、BWP以及DMRS的配置参数中的至少一种与所述传输特征参数之间的映射关系。
可选地，所述接收模块71，从第一终端设备接收所述传输特征信息，包括：
按照设定时间周期从所述第一终端设备接收更新后的传输特征信息，所述更新后的传输特征信息用于指示更新后的所述传输特征参数，更新后的所述传输特征参数由所述第一终端设备对所述传输特征参数进行更新得到。
可选地，所述接收模块71，接收所述传输特征信息，包括：
从网络设备接收所述传输特征信息。
可选地，所述接收模块71，从网络设备接收所述传输特征信息，包括：
从所述网络设备接收更新后的传输特征信息，所述更新后的传输特征信息用于指示更新后的所述传输特征参数，更新后的所述传输特征参数由所述网络设备对所述传输特征参数进行更新得到。
可选地，所述接收模块71，从网络设备接收所述传输特征信息，包括：
从所述网络设备接收RRC信息，所述RRC信息中携带所述传输特征信息；或，
从所述网络设备接收SIB信息，所述SIB信息中携带所述传输特征信息。
本公开实施例提供的终端设备能够实现图3的方法实施例中网络设备实 现的各个过程，为避免重复，这里不再赘述。本公开实施例中，接收端接收到传输特征信息后，确定传输特征信息指示的传输特征参数，其中，所述传输特征参数可以包括SCS、CP、BWP以及DMRS的配置参数中的至少一种。这样，接收端接收到发送端的信息后，可以根据指示对接收到的信息进行解调，减少了接收端的盲检次数，从而可以降低接收端信息解调的复杂度和时延，提高接收端获取信息的效率。
图8为本公开的一个实施例终端设备的结构示意图，所述终端设备包括：接收模块81，其中：
接收模块81，根据默认设置的传输特征参数，在SL上从第一终端设备接收物理信道，所述传输特征参数包括SCS、CP、BWP以及DMRS的配置参数中的至少一种。
本公开实施例中，通过将发送端和接收端默认设置相同的传输特征参数，使得发送端在向接收端发送信息时，可以根据默认设置的传输特征参数进行发送，接收端在从发送端接收信息后，可以使用默认设置的传输特征参数进行解调，减少了接收端的盲检次数，从而可以降低接收端信息解调的复杂度和时延，提高接收端获取信息的效率。
本公开实施例中，通信设备可以包括：网络设备、第一终端设备和第二终端设备，当通信设备为第一终端设备时，如图9所示，图9是本公开的一个实施例终端设备的结构示意图。图9所示的终端设备900包括：至少一个处理器901、存储器902、至少一个网络接口904和用户接口903。移动终端900中的各个组件通过总线系统905耦合在一起。可理解，总线系统905用于实现这些组件之间的连接通信。总线系统905除包括数据总线之外，还包括电源总线、控制总线和状态信号总线。但是为了清楚说明起见，在图9中将各种总线都标为总线系统905。
其中，用户接口903可以包括显示器、键盘或者点击设备(例如，鼠标，轨迹球(trackball)、触感板或者触摸屏等。
可以理解，本公开实施例中的存储器902可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(ROM，Read-Only Memory)、可编程只读存储器(PROM， Programmable ROM)、可擦除可编程只读存储器(EPROM，Erasable PROM)、电可擦除可编程只读存储器(EEPROM，Electrically EPROM)或闪存。易失性存储器可以是随机存取存储器(RAM，Random Access Memory)，其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的RAM可用，例如静态随机存取存储器(SRAM，Static RAM)、动态随机存取存储器(DRAM，Dynamic RAM)、同步动态随机存取存储器(SDRAM，Synchronous DRAM)、双倍数据速率同步动态随机存取存储器(DDRSDRAM，Double Data Rate SDRAM)、增强型同步动态随机存取存储器(ESDRAM，Enhanced SDRAM)、同步连接动态随机存取存储器(SLDRAM，Synchlink DRAM)和直接内存总线随机存取存储器(DRRAM，Direct Rambus RAM)。本公开实施例描述的系统和方法的存储器902旨在包括但不限于这些和任意其它适合类型的存储器。
在一些实施方式中，存储器902存储了如下的元素，可执行模块或者数据结构，或者他们的子集，或者他们的扩展集：操作系统9021和应用程序9022。
其中，操作系统9021，包含各种系统程序，例如框架层、核心库层、驱动层等，用于实现各种基础业务以及处理基于硬件的任务。应用程序9022，包含各种应用程序，例如媒体播放器(Media Player)、浏览器(Browser)等，用于实现各种应用业务。实现本公开实施例方法的程序可以包含在应用程序9022中。
在本公开实施例中，终端设备900还包括：存储在存储器上902并可在处理器901上运行的计算机程序，计算机程序被处理器901执行时实现如下步骤：
确定传输特征参数，所述传输特征参数用于在旁链路SL上发送物理信道，所述传输特征参数包括子载波间隔SCS、循环前缀CP、部分带宽BWP以及解调参考信号DMRS的配置参数中的至少一种；
发送传输特征信息，所述传输特征信息用于指示所述传输特征参数。
或实现如下步骤：
根据默认设置的传输特征参数，在SL上发送物理信道，所述传输特征参 数包括SCS、CP、BWP以及DMRS的配置参数中的至少一种。
上述本公开实施例揭示的方法可以应用于处理器901中，或者由处理器901实现。处理器901可能是一种集成电路芯片，具有信号的处理能力。在实现过程中，上述方法的各步骤可以通过处理器901中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器901可以是通用处理器、数字信号处理器(DSP，Digital Signal Processor)、专用集成电路(ASIC，Application Specific Integrated Circuit)、现成可编程门阵列(FPGA，Field Programmable Gate Array)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本公开实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本公开实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成，或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的计算机可读存储介质中。该计算机可读存储介质位于存储器902，处理器901读取存储器902中的信息，结合其硬件完成上述方法的步骤。具体地，该计算机可读存储介质上存储有计算机程序，计算机程序被处理器901执行时实现如上述信息指示方法实施例的各步骤。
可以理解的是，本公开实施例描述的这些实施例可以用硬件、软件、固件、中间件、微码或其组合来实现。对于硬件实现，处理单元可以实现在一个或多个专用集成电路(ASIC，Application Specific Integrated Circuits)、数字信号处理器(DSP，Digital Signal Processing)、数字信号处理设备(DSPD，DSP Device)、可编程逻辑设备(PLD，Programmable Logic Device)、现场可编程门阵列(FPGA，Field-Programmable Gate Array)、通用处理器、控制器、微控制器、微处理器、用于执行本公开所述功能的其它电子单元或其组合中。
对于软件实现，可通过执行本公开实施例所述功能的模块(例如过程、函数等)来实现本公开实施例所述的技术。软件代码可存储在存储器中并通过处理器执行。存储器可以在处理器中或在处理器外部实现。
终端设备900能够实现前述实施例中第一终端实现的各个过程，为避免重复，这里不再赘述。
本公开实施例还提出了一种计算机可读存储介质，该计算机可读存储介质存储一个或多个程序，该一个或多个程序包括指令，该指令当被包括多个应用程序的通信设备执行时，能够使该通信设备执行图1所示实施例的方法，并具体用于执行上述记载的信息指示方法的步骤。
当通信设备为网络设备时，如图10所示，图10是本公开实施例提供的网络设备的结构示意图，网络设备1000的实体装置结构示意图可如图10所示，包括处理器1002、存储器1003、发射机1001和接收机1004。具体的应用中，发射机1001和接收机1004可以耦合到天线1005。
存储器1003，用于存放程序。具体地，程序可以包括程序代码，所述程序代码包括计算机操作指令。存储器1003可以包括只读存储器和随机存取存储器，并向处理器1002提供指令和数据。存储器1003可能包含高速RAM存储器，也可能还包括非易失性存储器(non-volatile memory)，例如至少1个磁盘存储器。
处理器1002，执行存储器1003所存放的程序。
具体地，在网络设备1000中，处理器1002可执行以下方法：
配置传输特征参数，所述传输特征参数用于在SL上发送或解调物理信道，所述传输特征参数包括SCS、CP、BWP以及DMRS的配置参数中的至少一种；
发送传输特征信息，所述传输特征信息用于指示所述传输特征参数。
上述如本公开图2所示实施例揭示的网络设备1000执行的方法可以应用于处理器1002中，或者由处理器1002实现。处理器1002可能是一种集成电路芯片，具有信号的处理能力。在实现过程中，上述方法的各步骤可以通过处理器1002中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器1002可以是通用处理器，包括中央处理器(CPU，Central Processing Unit)、网络处理器(NP，Network Processor)等；还可以是数字信号处理器(DSP)、专用集成电路(ASIC)、现成可编程门阵列(FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本公开实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本公开实施例所公开的方法 的步骤可以直接体现为硬件译码处理器执行完成，或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器1003，处理器1002读取存储器1003中的信息，结合其硬件完成上述方法的步骤。
网络设备还可执行图2所示的方法，并实现网络设备在图2所示实施例的功能，本公开实施例在此不再赘述。
本公开实施例还提出了一种计算机可读存储介质，该计算机可读存储介质存储一个或多个程序，该一个或多个程序包括指令，该指令当被包括多个应用程序的通信设备执行时，能够使该通信设备执行图2所示实施例的方法，并具体用于执行上述记载的信息指示方法的步骤。
当通信设备为第二终端设备时，如图11所示，图11是本公开的一个实施例终端设备的结构示意图。图11所示的终端设备1100包括：至少一个处理器1101、存储器1102、至少一个网络接口1104和用户接口1103。移动终端1100中的各个组件通过总线系统1105耦合在一起。可理解，总线系统1105用于实现这些组件之间的连接通信。总线系统1105除包括数据总线之外，还包括电源总线、控制总线和状态信号总线。但是为了清楚说明起见，在图11中将各种总线都标为总线系统1105。
其中，用户接口1103可以包括显示器、键盘或者点击设备(例如，鼠标，轨迹球(trackball)、触感板或者触摸屏等。
可以理解，本公开实施例中的存储器1102可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(ROM，Read-Only Memory)、可编程只读存储器(PROM，Programmable ROM)、可擦除可编程只读存储器(EPROM，Erasable PROM)、电可擦除可编程只读存储器(EEPROM，Electrically EPROM)或闪存。易失性存储器可以是随机存取存储器(RAM，Random Access Memory)，其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的RAM可用，例如静态随机存取存储器(SRAM，Static RAM)、动态随机存取存储器(DRAM，Dynamic RAM)、同步动态随机存取存储器(SDRAM，Synchronous DRAM)、 双倍数据速率同步动态随机存取存储器(DDRSDRAM，Double Data Rate SDRAM)、增强型同步动态随机存取存储器(ESDRAM，Enhanced SDRAM)、同步连接动态随机存取存储器(SLDRAM，Synchlink DRAM)和直接内存总线随机存取存储器(DRRAM，Direct Rambus RAM)。本公开实施例描述的系统和方法的存储器902旨在包括但不限于这些和任意其它适合类型的存储器。
在一些实施方式中，存储器1102存储了如下的元素，可执行模块或者数据结构，或者他们的子集，或者他们的扩展集：操作系统11021和应用程序11022。
其中，操作系统11021，包含各种系统程序，例如框架层、核心库层、驱动层等，用于实现各种基础业务以及处理基于硬件的任务。应用程序11022，包含各种应用程序，例如媒体播放器(Media Player)、浏览器(Browser)等，用于实现各种应用业务。实现本公开实施例方法的程序可以包含在应用程序11022中。
在本公开实施例中，终端设备1100还包括：存储在存储器上1102并可在处理器1101上运行的计算机程序，计算机程序被处理器1101执行时实现如下步骤：
接收传输特征信息，所述传输特征信息用于指示传输特征参数，所述传输特征参数包括SCS、CP、BWP以及DMRS的配置参数中的至少一种；
根据所述传输特征信息，确定所述传输特征参数，所述传输特征参数用于对第一终端设备在SL上发送的物理信道进行解调。
或实现如下步骤：
根据默认设置的传输特征参数，在SL上从第一终端设备接收物理信道，所述传输特征参数包括SCS、CP、BWP以及DMRS的配置参数中的至少一种。
上述本公开实施例揭示的方法可以应用于处理器1001中，或者由处理器1001实现。处理器1001可能是一种集成电路芯片，具有信号的处理能力。在实现过程中，上述方法的各步骤可以通过处理器1001中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器1001可以是通用处理器、数字 信号处理器(DSP，Digital Signal Processor)、专用集成电路(ASIC，Application Specific Integrated Circuit)、现成可编程门阵列(FPGA，Field Programmable Gate Array)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本公开实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本公开实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成，或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的计算机可读存储介质中。该计算机可读存储介质位于存储器1002，处理器1001读取存储器1002中的信息，结合其硬件完成上述方法的步骤。具体地，该计算机可读存储介质上存储有计算机程序，计算机程序被处理器1001执行时实现如上述信息指示方法实施例的各步骤。
可以理解的是，本公开实施例描述的这些实施例可以用硬件、软件、固件、中间件、微码或其组合来实现。对于硬件实现，处理单元可以实现在一个或多个专用集成电路(ASIC，Application Specific Integrated Circuits)、数字信号处理器(DSP，Digital Signal Processing)、数字信号处理设备(DSPD，DSP Device)、可编程逻辑设备(PLD，Programmable Logic Device)、现场可编程门阵列(FPGA，Field-Programmable Gate Array)、通用处理器、控制器、微控制、微处理器、用于执行本公开所述功能的其它电子单元或其组合中。
对于软件实现，可通过执行本公开实施例所述功能的模块(例如过程、函数等)来实现本公开实施例所述的技术。软件代码可存储在存储器中并通过处理器执行。存储器可以在处理器中或在处理器外部实现。
终端设备1000能够实现前述实施例中第二终端设备实现的各个过程，为避免重复，这里不再赘述。
本公开实施例还提出了一种计算机可读存储介质，该计算机可读存储介质存储一个或多个程序，该一个或多个程序包括指令，该指令当被包括多个应用程序的通信设备执行时，能够使该通信设备执行图3所示实施例的方法，并具体用于执行上述记载的信息指示方法的步骤。
总之，以上所述仅为本公开的较佳实施例而已，并非用于限定本公开的保护范围。凡在本公开的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本公开的保护范围之内。
上述实施例阐明的系统、装置、模块或单元，具体可以由计算机芯片或实体实现，或者由具有某种功能的产品来实现。一种典型的实现设备为计算机。具体的，计算机例如可以为个人计算机、膝上型计算机、蜂窝电话、相机电话、智能电话、个人数字助理、媒体播放器、导航设备、电子邮件设备、游戏控制台、平板计算机、可穿戴设备或者这些设备中的任何设备的组合。
计算机可读介质包括永久性和非永久性、可移动和非可移动媒体可以由任何方法或技术来实现信息存储。信息可以是计算机可读指令、数据结构、程序的模块或其他数据。计算机的存储介质的例子包括，但不限于相变内存(PRAM)、静态随机存取存储器(SRAM)、动态随机存取存储器(DRAM)、其他类型的随机存取存储器(RAM)、只读存储器(ROM)、电可擦除可编程只读存储器(EEPROM)、快闪记忆体或其他内存技术、只读光盘只读存储器(CD-ROM)、数字多功能光盘(DVD)或其他光学存储、磁盒式磁带，磁带磁磁盘存储或其他磁性存储设备或任何其他非传输介质，可用于存储可以被计算设备访问的信息。按照本文中的界定，计算机可读介质不包括暂存电脑可读媒体(transitory media)，如调制的数据信号和载波。
需要说明的是，在本文中，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到上述实施例方法可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件，但很多情况下前者是更佳的实施方式。基于这样的理解，本公开的技术方案本质上或者说对相关技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光 盘)中，包括若干指令用以使得一台终端(可以是手机，计算机，服务器，空调器，或者网络设备等)执行本公开各个实施例所述的方法。
上面结合附图对本公开的实施例进行了描述，但是本公开并不局限于上述的具体实施方式，上述的具体实施方式仅仅是示意性的，而不是限制性的，本领域的普通技术人员在本公开的启示下，在不脱离本公开宗旨和权利要求所保护的范围情况下，还可做出很多形式，均属于本公开的保护之内。

Claims (39)

  1. 一种信息指示方法，应用于第一终端设备，包括：
    确定传输特征参数，所述传输特征参数用于在旁链路SL上发送物理信道，所述传输特征参数包括子载波间隔SCS、循环前缀CP、部分带宽BWP以及解调参考信号DMRS的配置参数中的至少一种；
    发送传输特征信息，所述传输特征信息用于指示所述传输特征参数。
  2. 如权利要求1所述的方法，其中，所述发送传输特征信息包括：
    发送广播信息，所述广播信息中携带所述传输特征参数。
  3. 如权利要求1所述的方法，其中，所述传输特征参数用于在SL上发送PSSCH；
    其中，所述发送传输特征信息包括：
    发送所述PSCCH，所述PSCCH中携带所述传输特征参数。
  4. 如权利要求1所述的方法，其中，
    所述传输特征参数包括DMRS的配置参数，所述传输特征信息用于指示SCS、CP以及BWP中的至少一种，所述SCS、CP以及BWP中的至少一种与DMRS的配置参数具有第一映射关系。
  5. 如权利要求1所述的方法，其中，
    所述传输特征参数包括SCS、CP以及BWP中的至少一种，所述传输特征信息用于指示DMRS的配置参数，所述SCS、CP以及BWP中的至少一种与DMRS的配置参数具有第二映射关系。
  6. 如权利要求1所述的方法，其中，
    所述传输特征信息包括同步信号，所述同步信号的序列取值与所述传输特征参数之间具有第三映射关系。
  7. 如权利要求1所述的方法，其中，
    所述传输特征信息包括广播信息和同步信号，所述广播信息和所述同步信号的发送时域位置及频域位置的关系与所述传输特征参数之间具有第四映射关系。
  8. 如权利要求1所述的方法，其中，发送传输特征信息，包括：
    发送广播信息，所述第一终端设备发送所述广播信息时使用的SCS、CP、BWP以及DMRS的配置参数中的至少一种与所述传输特征参数之间具有第五映射关系。
  9. 如权利要求1所述的方法，其中，
    所述传输特征信息包括同步信号，所述第一终端设备发送所述同步信号时使用的SCS、CP、BWP以及DMRS的配置参数中的至少一种与所述传输特征参数之间具有第六映射关系。
  10. 如权利要求1至9任一项所述的方法，其中，在发送传输特征信息后，所述方法还包括：
    更新所述传输特征参数；
    按照设定时间周期发送更新后的传输特征信息，所述更新后的传输特征信息用于指示更新后的所述传输特征参数。
  11. 如权利要求1至9任一项所述的方法，其中，在发送传输特征信息后，所述方法还包括：
    根据参考因子更新所述传输特征参数，所述参考因子包括移动特性和业务特性中的至少一种；
    发送更新后的传输特征信息，所述更新后的传输特征信息用于指示更新后的所述传输特征参数。
  12. 一种信息指示方法，应用于第一终端设备，包括：
    根据默认设置的传输特征参数，在SL上发送物理信道，所述传输特征参数包括SCS、CP、BWP以及DMRS的配置参数中的至少一种。
  13. 一种信息指示方法，应用于网络设备，包括：
    配置传输特征参数，所述传输特征参数用于在SL上发送或解调物理信道，所述传输特征参数包括SCS、CP、BWP以及DMRS的配置参数中的至少一种；
    发送传输特征信息，所述传输特征信息用于指示所述传输特征参数。
  14. 如权利要求13所述的方法，其中，所述方法还包括：
    更新所述传输特征参数；
    发送更新后的传输特征信息，所述更新后的传输特征信息用于指示更新 后的所述传输特征参数。
  15. 如权利要求13所述的方法，其中，所述发送传输特征信息包括：
    发送无线资源控制RRC信息，所述RRC信息中携带所述传输特征参数；或，
    发送系统消息块SIB信息，所述SIB信息中携带所述传输特征参数。
  16. 一种信息指示方法，应用于第二终端设备，包括：
    接收传输特征信息，所述传输特征信息用于指示传输特征参数，所述传输特征参数包括SCS、CP、BWP以及DMRS的配置参数中的至少一种；
    根据所述传输特征信息，确定所述传输特征参数，所述传输特征参数用于对第一终端设备在SL上发送的物理信道进行解调。
  17. 如权利要求16所述的方法，其中，所述接收传输特征信息包括：
    从所述第一终端设备接收所述传输特征信息。
  18. 如权利要求17所述的方法，其中，根据所述传输特征信息，确定所述传输特征参数，包括：
    从所述第一终端设备接收广播信息，所述广播信息中携带所述传输特征参数；
    根据所述广播信息，确定所述传输特征参数。
  19. 如权利要求17所述的方法，其中，所述传输特征参数用于对所述第一终端设备发送的PSSCH进行解调；
    根据所述传输特征信息，确定所述传输特征参数，包括：
    从所述第一终端设备接收PSCCH，所述PSCCH中携带所述传输特征参数；
    根据所述PSCCH，确定所述传输特征参数。
  20. 如权利要求17所述的方法，其中，所述传输特征参数包括DMRS的配置参数，所述传输特征信息用于指示SCS、CP以及BWP中的至少一种；
    其中，根据所述传输特征信息，确定所述传输特征参数，包括：
    根据所述传输特征信息和第一映射关系，确定所述传输特征参数，所述第一映射关系为SCS、CP以及BWP中的至少一种与DMRS的配置参数之间的映射关系。
  21. 如权利要求17所述的方法，其中，所述传输特征参数包括SCS、CP以及BWP中的至少一种，所述传输特征信息用于指示DMRS的配置参数；
    其中，根据所述传输特征信息，确定所述传输特征参数，包括：
    根据所述传输特征信息和第二映射关系，确定所述传输特征参数，所述第二映射关系为SCS、CP以及BWP中的至少一种与DMRS的配置参数之间的映射关系。
  22. 如权利要求17所述的方法，其中，所述传输特征信息包括同步信号；
    其中，根据所述传输特征信息，确定所述传输特征参数，包括：
    根据所述传输特征信息和第三映射关系，确定所述传输特征参数，所述第三映射关系为所述同步信号的序列取值与所述传输特征参数之间的映射关系。
  23. 如权利要求17所述的方法，其中，所述传输特征信息包括广播信息和同步信号；
    其中，根据所述传输特征信息，确定所述传输特征参数，包括：
    根据所述传输特征信息和第四映射关系，确定所述传输特征参数，所述第四映射关系为所述广播信息和所述同步信号的发送时域位置与频域位置关系与所述传输特征参数之间的映射关系。
  24. 如权利要求17所述的方法，其中，从所述第一终端设备接收广播信息；
    其中，根据所述传输特征信息，确定所述传输特征参数，包括：
    根据所述广播信息和第五映射关系，确定所述传输特征参数，所述第五映射关系为所述第一终端设备发送所述广播信息时使用的SCS、CP、BWP以及DMRS的配置参数中的至少一种与所述传输特征参数之间的映射关系。
  25. 如权利要求17所述的方法，其中，所述传输特征信息包括同步信号；
    其中，根据所述传输特征信息，确定所述传输特征参数，包括：
    根据所述传输特征信息和第六映射关系，确定所述传输特征参数，所述第六映射关系为所述第一终端设备发送所述同步信号时使用的SCS、CP、BWP以及DMRS的配置参数中的至少一种与所述传输特征参数之间的映射关系。
  26. 如权利要求17至25任一项所述的方法，其中，所述从所述第一终端设备接收所述传输特征信息包括：
    按照设定时间周期从所述第一终端设备接收更新后的传输特征信息，所述更新后的传输特征信息用于指示更新后的所述传输特征参数，更新后的所述传输特征参数由所述第一终端设备对所述传输特征参数进行更新得到。
  27. 如权利要求16所述的方法，其中，接收所述传输特征信息，包括：
    从网络设备接收所述传输特征信息。
  28. 如权利要求27所述的方法，其中，所述从网络设备接收所述传输特征信息包括：
    从所述网络设备接收更新后的传输特征信息，所述更新后的传输特征信息用于指示更新后的所述传输特征参数，更新后的所述传输特征参数由所述网络设备对所述传输特征参数进行更新得到。
  29. 如权利要求28所述的方法，其中，所述从网络设备接收所述传输特征信息还包括：
    从所述网络设备接收RRC信息，所述RRC信息中携带所述传输特征信息；或，
    从所述网络设备接收SIB信息，所述SIB信息中携带所述传输特征信息。
  30. 一种信息指示方法，应用于第二终端设备，包括：
    根据默认设置的传输特征参数，在SL上从第一终端设备接收物理信道，所述传输特征参数包括SCS、CP、BWP以及DMRS的配置参数中的至少一种。
  31. 一种终端设备，包括：
    确定模块，确定传输特征参数，所述传输特征参数用于在旁链路SL上发送物理信道，所述传输特征参数包括子载波间隔SCS、循环前缀CP、部分带宽BWP以及解调参考信号DMRS的配置参数中的至少一种；
    发送模块，发送传输特征信息，所述传输特征信息用于指示所述传输特征参数。
  32. 一种终端设备，包括：
    发送模块，根据默认设置的传输特征参数，在SL上发送物理信道，所述 传输特征参数包括SCS、CP、BWP以及DMRS的配置参数中的至少一种。
  33. 一种网络设备，包括：
    配置模块，配置传输特征参数，所述传输特征参数用于在SL上发送或解调物理信道，所述传输特征参数包括SCS、CP、BWP以及DMRS的配置参数中的至少一种；
    发送模块，发送传输特征信息，所述传输特征信息用于指示所述传输特征参数。
  34. 一种终端设备，包括：
    接收模块，接收传输特征信息，所述传输特征信息用于指示传输特征参数，所述传输特征参数包括SCS、CP、BWP以及DMRS的配置参数中的至少一种；
    确定模块，根据所述传输特征信息，确定所述传输特征参数，所述传输特征参数用于对第一终端设备在SL上发送的物理信道进行解调。
  35. 一种终端设备，包括：
    接收模块，根据默认设置的传输特征参数，在SL上从第一终端设备接收物理信道，所述传输特征参数包括SCS、CP、BWP以及DMRS的配置参数中的至少一种。
  36. 一种终端设备，包括：存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序，所述计算机程序被所述处理器执行时实现如权利要求1至12中任一项所述的方法的步骤。
  37. 一种网络设备，包括：存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序，所述计算机程序被所述处理器执行时实现如权利要求13至15中任一项所述的方法的步骤。
  38. 一种终端设备，包括：存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序，所述计算机程序被所述处理器执行时实现如权利要求16至30中任一项所述的方法的步骤。
  39. 一种计算机可读存储介质，其中，所述计算机可读存储介质上存储有计算机程序，所述计算机程序被处理器执行时实现如权利要求1至12中任一项所述的方法的步骤，或实现如权利要求13至15中任一项所述的方法的 步骤，或实现如权利要求16至30中任一项所述的方法的步骤。
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