WO2019196828A1 - 通信系统参数的确定、指示方法及设备 - Google Patents

通信系统参数的确定、指示方法及设备 Download PDF

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Publication number
WO2019196828A1
WO2019196828A1 PCT/CN2019/081895 CN2019081895W WO2019196828A1 WO 2019196828 A1 WO2019196828 A1 WO 2019196828A1 CN 2019081895 W CN2019081895 W CN 2019081895W WO 2019196828 A1 WO2019196828 A1 WO 2019196828A1
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WIPO (PCT)
Prior art keywords
communication system
system parameter
sidelink channel
parameters
indication information
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PCT/CN2019/081895
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English (en)
French (fr)
Inventor
刘是枭
Original Assignee
维沃移动通信有限公司
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Application filed by 维沃移动通信有限公司 filed Critical 维沃移动通信有限公司
Publication of WO2019196828A1 publication Critical patent/WO2019196828A1/zh
Priority to US17/035,731 priority Critical patent/US11349602B2/en
Priority to US17/730,132 priority patent/US11777644B2/en

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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
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0045—Arrangements at the receiver end
    • H04L1/0052—Realisations of complexity reduction techniques, e.g. pipelining or use of look-up tables
    • 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
    • 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
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2666—Acquisition of further OFDM parameters, e.g. bandwidth, subcarrier spacing, or guard interval length
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/10—Access restriction or access information delivery, e.g. discovery data delivery using broadcasted information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/12—Access restriction or access information delivery, e.g. discovery data delivery using downlink control channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/51—Allocation or scheduling criteria for wireless resources based on terminal or device properties
    • 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 signaling, i.e. of overhead other than pilot signals

Definitions

  • the present disclosure relates to the field of communications technologies, and in particular, to a method, a method, and a device for determining a parameter of a communication system.
  • the fifth generation mobile communication technology (fifth-generation, 5G) wireless access technology (NR) supports a variety of communication system parameters (Numerology), communication system parameters can be defined by subcarrier spacing and cyclic prefix .
  • communication system parameters can be 15 kHz, 30 kHz, 60 kHz, 120 kHz, 240 kHz, and the like.
  • the transmitting device when transmitting information to the receiving device, the transmitting device needs to encode the information by using the communication system parameter, and send the information to the receiving device through a side link (Sidelink) channel.
  • Sidelink side link
  • the receiving end device after receiving the information transmitted by the transmitting end device through the Sidelink channel, the receiving end device needs to decode the information carried by the Sidelink channel by using the same communication system parameter as the transmitting end device encoding.
  • the receiving device does not know the specific parameter value of the communication system parameter used by the transmitting device.
  • the receiving device after receiving the information, the receiving device generally determines the decoded communication system parameters by means of blind detection.
  • the blind detection method greatly increases the workload of the receiving device, so that the decoding complexity of the receiving device is high, and therefore, it needs to be solved.
  • An object of the embodiments of the present disclosure is to provide a method for determining, indicating, and decoding parameters of a communication system, so as to solve the problem of high workload of the receiving device and high complexity of decoding.
  • an embodiment of the present disclosure provides a method for determining a parameter of a communication system, which is applied to a device at a receiving end, and the method includes:
  • the embodiment of the present disclosure further provides a method for indicating a parameter of a communication system, which is applied to a network side device, and the method includes:
  • a communication system parameter Determining a communication system parameter according to a mapping relationship between a factor of a communication system parameter and a communication system parameter; wherein the communication system parameter includes a subcarrier spacing SCS of the Sidelink channel;
  • the embodiment of the present disclosure further provides a method for indicating a parameter of a communication system, which is applied to a device at a sending end, and the method includes:
  • a communication system parameter Determining a communication system parameter according to a mapping relationship between a factor of a communication system parameter and a communication system parameter; wherein the communication system parameter includes a subcarrier spacing SCS of the Sidelink channel;
  • an embodiment of the present disclosure further provides a receiving end device, including:
  • a first determining module configured to determine a communication system parameter according to the obtained first indication information; and/or determine the communication system parameter according to a mapping relationship between an influencing factor of the communication system parameter and a communication system parameter;
  • the communication system parameters include a subcarrier spacing SCS of a Sidelink channel; the communication system parameters are used to decode information carried on the Sidelink channel.
  • the embodiment of the present disclosure further provides a network side device, including:
  • a second determining module configured to determine a communication system parameter according to a mapping relationship between a factor of a communication system parameter and a communication system parameter; wherein the communication system parameter includes a subcarrier spacing SCS of the Sidelink channel;
  • a first sending module configured to send first indication information to the receiving end device, where the first indication information is used to indicate the communication system parameter, and the communication system parameter is used by the receiving end device on the Sidelink channel
  • the carried information is decoded.
  • the embodiment of the present disclosure further provides a sending end device, including:
  • a third determining module configured to determine a communication system parameter according to a mapping relationship between a factor of a communication system parameter and a communication system parameter; wherein the communication system parameter includes a subcarrier spacing SCS of the Sidelink channel;
  • a second sending module configured to send first indication information to the receiving end device, where the first indication information is used to indicate the communication system parameter, and the communication system parameter is used by the receiving end device on the Sidelink channel
  • the carried information is decoded.
  • an embodiment of the present disclosure further provides a receiving end device, including: a memory, a processor, and a program stored on the memory and executable on the processor, where the program is used by the processor.
  • the step of determining the method of determining communication system parameters as described in the first aspect above is performed upon execution.
  • an embodiment of the present disclosure further provides a network side device, including: a memory, a processor, and a program stored on the memory and executable on the processor, where the program is used by the processor.
  • a network side device including: a memory, a processor, and a program stored on the memory and executable on the processor, where the program is used by the processor.
  • an embodiment of the present disclosure further provides a transmitting device, including: a memory, a processor, and a program stored on the memory and executable on the processor, where the program is used by the processor.
  • an embodiment of the present disclosure provides a computer readable storage medium, where the program is stored on a computer readable storage medium, and the program is executed by a processor to implement a communication system parameter as described in the first aspect above.
  • the step of determining the method, or the step of implementing the indication method of the communication system parameter as described in the second aspect above when the program is executed by the processor, or implementing the third aspect as described above when the program is executed by the processor The steps of the method of indicating the parameters of the communication system.
  • the receiving end device may determine the communication system parameter from the obtained first indication information indicating the communication system parameter, and/or according to the communication system parameter and The mapping relationship between the influencing factors and the parameters of the communication system determines the parameters of the communication system. In this way, the receiving end device is prevented from finding the parameters of the communication system by blind detection, thereby reducing the workload of the receiving end device and the complexity of decoding, and improving the communication performance.
  • FIG. 1 is a first schematic flowchart of a method for determining parameters of a communication system according to an embodiment of the present disclosure.
  • FIG. 2 is a schematic diagram of dividing a speed interval of an absolute moving speed of a transmitting end device in a method for determining parameters of a communication system according to an embodiment of the present disclosure.
  • FIG. 3 is a first schematic flowchart of a method for indicating a parameter of a communication system according to an embodiment of the present disclosure.
  • FIG. 4 is a second schematic flowchart of a method for determining parameters of a communication system according to an embodiment of the present disclosure.
  • FIG. 5 is a third schematic flowchart of a method for determining parameters of a communication system according to an embodiment of the present disclosure.
  • FIG. 6 is a first schematic flowchart of a method for indicating a parameter of a communication system according to an embodiment of the present disclosure.
  • FIG. 7 is a fourth schematic flowchart of a method for determining parameters of a communication system according to an embodiment of the present disclosure.
  • FIG. 8 is a fifth schematic flowchart of a method for determining parameters of a communication system according to an embodiment of the present disclosure.
  • FIG. 9 is a schematic structural diagram of a module of a receiving end device according to an embodiment of the present disclosure.
  • FIG. 10 is a schematic structural diagram of a module of a network side device according to an embodiment of the present disclosure.
  • FIG. 11 is a schematic structural diagram of a module of a transmitting end device according to an embodiment of the present disclosure.
  • FIG. 12 is a schematic structural diagram of a receiving end device according to an embodiment of the present disclosure.
  • FIG. 13 is a schematic structural diagram of a network side device according to an embodiment of the present disclosure.
  • FIG. 14 is a schematic structural diagram of a transmitting end device according to an embodiment of the present disclosure.
  • 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 Advanced
  • New New Radio, NR
  • UE User equipment
  • UE User equipment
  • RAN Radio Access Network
  • the core network communicates, and the user side device may be a mobile terminal, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal, for example, portable, pocket, handheld, computer built, or in-vehicle.
  • Mobile devices that exchange language and/or data with a wireless access network.
  • the network side device is configured to communicate with the user side device, and may be a Base Transceiver Station (BTS) in GSM or CDMA, or a base station (NodeB) in WCDMA, or an evolved base station in LTE (evolutional)
  • BTS Base Transceiver Station
  • NodeB base station
  • LTE evolutional
  • the present disclosure is not limited to the Node B, eNB or e-NodeB) and the 5G base station (gNB). However, for convenience of description, the following embodiments are described by taking gNB as an example.
  • SCI Sidelink Control Information
  • RSRP Reference Signal Receiving Power
  • SINR Signal to Interference plus Noise Ratio
  • SI System Information
  • Radio Resource Control (RRC);
  • DCI Downlink Control Information
  • BWP Bandwidth Part
  • SCS Subcarrier Spacing
  • the English full name and English abbreviation corresponding to the above Chinese noun include, but are not limited to, the above.
  • the English abbreviation of the bandwidth part includes but is not limited to BWP. This embodiment only lists the possible English full names and English abbreviations, and does not indicate the limitation of English full name and English abbreviation.
  • FIG. 1 is a schematic flowchart of a method for determining parameters of a communication system according to an embodiment of the present disclosure. As shown in FIG. 1 , the method includes at least the following steps:
  • Step 102 Determine a communication system parameter according to the obtained first indication information; and/or determine a communication system parameter according to a mapping relationship between an influence factor of the communication system parameter and a communication system parameter;
  • the communication system parameter includes an SCS of a Sidelink channel, and the communication system parameter is used to decode information carried on a Sidelink channel.
  • the information carried on the above Sidelink channel refers to information sent by the transmitting end device to the receiving end device through the Sidelink channel.
  • the communication system parameters may include a bandwidth portion of a CP or a Sidelink channel of the Sidelink channel in addition to the SCS including the Sidelink channel.
  • the communication system parameters can be determined at least in the following three ways:
  • the first manner determining communication system parameters according to the obtained first indication information
  • the second mode determines the parameters of the communication system according to the mapping relationship between the influencing factors of the parameters of the communication system and the parameters of the communication system;
  • the communication system parameters are determined according to the obtained first indication information, and the mapping relationship between the influencing factors of the communication system parameters and the communication system parameters.
  • the communication system parameters include first communication system parameters that decode information carried on the physical side link control channel; and/or, information that decodes information carried on the physical side link data channel Two communication system parameters.
  • the communication system parameter may include only the first communication system parameter; or the communication system parameter may include only the second communication system parameter; or the communication system parameter includes the first communication system parameter And second communication system parameters.
  • the Sidelink channel in the above step 102 may include only the physical side link control channel; or only the physical side link data channel; or include the physical side link data channel and the physical side link control channel.
  • the Sidelink channel includes only the physical side link control channel, correspondingly, the communication system parameter includes only the first communication system parameter; if the Sidelink channel includes only the physical side link data channel Correspondingly, the foregoing communication system parameter includes only the second communication system parameter; if the Sidelink channel includes a physical side link control channel and a physical side link data channel, corresponding to the communication system parameter, including the first communication system parameter and the Two communication system parameters.
  • the communication system parameters are determined according to the obtained first indication information.
  • the first indication information in step 102 may be originated from a source device, or may be derived from a network side device. Specifically, if the first indication information indicates the first communication system parameter, the first indication information is obtained from a network side message sent by the network side device.
  • the first indication information indicates the second communication system parameter
  • the first indication information may be obtained by using any one of the following manners:
  • the decoded information is obtained. Obtaining first indication information indicating a parameter of the second communication system in the SCI information, determining a second communication system parameter according to the first indication information, and then decoding the information carried on the physical side link data channel by using the second communication system parameter If the first indication information indicating the second communication system parameter does not exist in the decoded SCI information, the physical side link data channel may be decoded according to the first communication system parameter.
  • the network side device carries the first indication information indicating the parameter of the communication system in the network message, and sends the information to the receiving end device. Therefore, the receiving device needs to obtain the first indication information from the network message sent by the network side device.
  • the network message sent by the network side device includes any one of the following messages:
  • SI messages RRC messages, and DCI messages.
  • network message may also be other types of messages, which are merely exemplary illustrations and do not constitute a specific type of network message.
  • the first indication information indicating the parameter of the communication system is carried in the SI message, and the receiving end device needs to obtain the first indication information from the received SI message;
  • the information of the communication system parameter is carried in the RRC message, and the receiving device needs to obtain the first indication information from the received RRC message;
  • the information indicating the parameter of the communication system is carried in the DCI information, the receiving device needs to receive the received DCI.
  • the first indication information is obtained in the message.
  • the foregoing first indication information may be an identifier of a communication system parameter, and the communication system parameter is indicated by an identifier of the communication system parameter.
  • the identifier of the communication system parameter may be a bit corresponding to the parameter of the communication system, and different bits may be configured to correspond to different communication system parameters.
  • the following description will be given by way of example.
  • the above communication system parameter is SCS
  • the configurable bit 1 indicates that the SCS is 15 kHz
  • the configuration bit 0 indicates that the SCS is 30 kHz.
  • the SCS of the Sidelink channel may be determined to be 30 kHz, and the bit carried in the first indication information obtained is 1 Then, it can be determined that the SCS of the Sidelink channel is 15 kHz.
  • the information can be transmitted in the low frequency band or in the high frequency band.
  • the SCS of the Sidelink channel in the low frequency band, can be 15 kHz and 30 kHz, while in the high frequency band, the SCS of the Sidelink channel can be 60 kHz and 120 kHz.
  • the SCS of the Sidelink channel in the low frequency band, 0 can be configured to indicate that the SCS is 15 kHz, and the configuration 1 indicates that the SCS is 30 kHz; in the high frequency band, 0 can be configured to indicate that the SCS is 60 kHz, and 1 can be configured to indicate that the SCS is 120 kHz.
  • the Sidelink channel can be determined.
  • the SCS is 15 kHz, at which point the information carried on the Sidelink channel can be decoded using 15 kHz.
  • the first indication information is sent by the network side device or the sending end device to the receiving end device, and therefore, the SCS indicated by each bit in the first indication information is also sent by the network side device. End device configuration.
  • the first indication information indicates the first communication system parameter, and the first indication information is obtained according to the first communication system parameter.
  • the first indication information indicates the second communication system parameter, and the first indication information is obtained by acquiring the first indication information according to the second communication system parameter.
  • the Sidelink channel includes a physical side link control channel and a physical side link data channel
  • the first indication information needs to indicate both the first communication system parameter and the second communication system parameter.
  • the foregoing The manner in which an indication is obtained includes at least the following:
  • the first indication information indicating the first communication system parameter and the first indication information indicating the second communication system parameter are all obtained from the network message sent by the network side device.
  • the network side device periodically or non-periodically detects various influencing factors affecting the parameters of the communication system, and determines, according to the detected influencing factors and the mapping relationship between the influencing factors and the parameters of the communication system. a first communication system parameter and a second communication system parameter, and carrying the first indication information indicating the first communication system parameter and the second communication system parameter when the first communication system parameter and the second communication system parameter change In the network message, the network message is sent to the receiving device.
  • the receiving device After receiving the network message sent by the network side device, the receiving device obtains the first indication information from the network message, and determines the first communication system parameter and the second communication system parameter according to the first indication information; and then, the receiving end The device decodes the information carried on the physical side link control channel using the first communication system parameter, and decodes the information carried on the physical side link data channel using the second communication system parameter.
  • the first indication information may carry two bits, and the first bit indicates the first The communication system parameter, the second bit indicates the second communication system parameter; or, the two bits together may indicate the first communication system parameter and the second communication system parameter.
  • 00 can be configured to indicate that the SCS of the physical side link control channel and the SCS of the physical side link data channel are both 15 kHz; 01 can be configured to indicate that the SCS of the physical side link control channel is 15 kHz, The SCS of the physical side link data channel is 30 kHz, etc.; on the high frequency band, 00 can be configured to indicate that the SCS of the physical side link control channel and the SCS of the physical side link data channel are both 60 kHz, and 01 can be configured to indicate physical sidechain.
  • the SCS of the road control channel is 60 kHz
  • the SCS of the physical side link data channel is 120 kHz, and the like.
  • the physical device may determine the physical The SCS of the side link control channel is 15 kHz, the SCS of the physical side link data channel is 30 kHz, and then the information carried on the physical side link control channel is decoded using 15 kHz, and the 30 kHz pair is carried on the physical side link data channel. The information is decoded.
  • the specific configuration manner of the first indication information may be other forms. Not limited to this.
  • the first indication information indicating the first communication system parameter is obtained from the network message sent by the network side device, and the first indication information indicating the second communication system parameter is from the first communication system parameter to the physical side link control channel.
  • the SCI information carried on the upper side is obtained by decoding the information.
  • the network side device carries the first indication information indicating the first communication system parameter in the network message, and sends the network message to the receiving end device; the sending end device will indicate the second communication system parameter.
  • the first indication information is carried in the SCI message, and then sent to the receiving end device through the physical sub-link control channel; after receiving the network message sent by the network side device, the receiving end device obtains the parameter indicating the first communication system from the network message.
  • the first indication information determines the first communication system parameter according to the first indication information, and then the receiving end device decodes the information carried on the physical side link control channel by using the first communication system parameter.
  • the SCI information is carried on the physical side link control channel
  • the SCI information is also decoded and decoded in the process of decoding the information carried on the physical side link control channel by using the first communication system parameter.
  • the SCI information may carry first indication information indicating a parameter of the second communication system, or may not carry first indication information indicating a parameter of the second communication system. If there is no first indication information indicating the parameters of the second communication system in the decoded SCI information, the receiving device directly decodes the information carried on the physical side link data channel by using the first communication system parameter.
  • the network device sends a network message to the receiving device, where the network message carries the first indication information indicating the parameter of the first communication system, and the sending device sends the SCI information to the receiving device.
  • the network side device can configure the SCS indicated by 0 to be 15 kHz, and the SCS indicated by the configuration 1 to be 30 kHz;
  • the network side device can configure the SCS indicated by 0 to be 60 kHz, and the SCS indicated by 1 can be set to 120 kHz.
  • the transmitting device can configure the SCS indicated by 0 to be 15 kHz, and the SCS indicated by the configuration 1 to be 30 kHz; the transmitting device transmits to the receiving end through the Sidelink channel.
  • the network side device can configure the SCS indicated by 0 to be 60 kHz, and the SCS indicated by 1 can be set to 120 kHz.
  • the receiving end device After the receiving end device receives the information sent by the sending end device through the Sidelink channel, if it is determined that the information is transmitted in the low frequency band, and the first indication information acquired from the network message carries the bit bit is 0.
  • the receiving device uses the 15 kHz to decode the information carried on the physical side link control channel; and then obtains the first indication information carried in the SCI information from the decoded SCI information, if the first information is obtained from the SCI information.
  • An indication information, and the bit carried in the first indication information is 1, the receiving end device uses 30 kHz to decode information carried on the physical side link data channel.
  • the receiving end device uses 15 kHz to decode the information carried on the physical side link data channel.
  • the first indication information may be carried in the SCI information, or the first indication information may not be carried in the SCI information. If the first indication information is not carried in the SCI information, the receiving device directly uses the first communication.
  • the system parameters decode the information carried on the physical side link data channel, which can reduce the amount of information transmitted on the physical side link control channel, thereby saving resources.
  • the receiving end device determines the communication system parameters according to the mapping relationship between the influencing factors of the communication system parameters and the communication system parameters.
  • the receiving end device can detect various influencing factors of the communication system parameters, and then determine the communication system parameters according to the mapping relationship between the respective influencing factors and the communication system parameters.
  • the parameters of the communication system are determined, and there are various specific implementation manners. Two specific implementation manners will be described in detail below.
  • determining the communication system parameters according to the mapping relationship between the influencing factors of the communication system parameters and the communication system parameters may include the following steps (1) and (2):
  • Step (1) determining a bandwidth portion of the Sidelink channel according to a first mapping relationship between a factor of the communication system parameter and the bandwidth portion;
  • Step (2) determining an SCS of the Sidelink channel according to a second mapping relationship between a bandwidth portion of the Sidelink channel and the SCS.
  • the communication system parameter further includes a CP of the Sidelink channel, and after determining the SCS of the Sidelink channel, the CP of the Sidelink channel can be determined according to the SCS of the Sidelink channel.
  • the above influencing factors include at least one of the following:
  • the absolute moving speed of the transmitting device The absolute moving speed of the transmitting device, the absolute moving speed of the receiving device, the relative moving speed between the transmitting device and the receiving device, the related parameters of the service currently being processed by the receiving device, and the Sidelink channel state measurement.
  • the relative moving speed between the sending end device and the receiving end device includes the following two situations: a relative moving speed of the transmitting end device relative to the receiving end device, and a relative moving speed of the receiving end device relative to the transmitting end device.
  • the influencing factors may be an absolute moving speed of the transmitting device, an absolute moving speed of the receiving device, a relative moving speed between the transmitting device and the receiving device, and the receiving device is currently A combination of one or more of the associated parameters of the processed service and the Sidelink channel state measurements.
  • the service related parameters include at least one of the following:
  • the priority level of the service The priority level of the service, the delay requirement of the service, the reliability value of the service, the throughput demand value of the service, and the bandwidth occupied by the service;
  • the above Sidelink channel state measurement value includes at least one of the following:
  • Frequency offset value RSRP value
  • SINR value SINR
  • the service related parameter may include a combination of one or more of a service priority level, a service delay requirement, a service reliability value, a service throughput requirement value, and a service occupied bandwidth.
  • the above Sidelink channel state measurement value may include a combination of one or more of a frequency offset value, an RSRP value, and an SINR value.
  • the following describes the specific process of determining the bandwidth portion of the Sidelink channel according to the first mapping relationship between each influencing factor and the bandwidth portion.
  • the possible range of the absolute moving speed of the transmitting device can be determined, and the range of values is divided into several intervals, and then the first of each interval and the bandwidth portion is established.
  • the absolute moving speed of the transmitting device can be recorded as V.
  • the absolute moving speed of the transmitting end device changes, especially when the critical point of the two sections changes, the corresponding bandwidth portion is caused to prevent the absolute moving speed of the transmitting end device from frequently switching near the critical point. Frequent switching, which increases the complexity and power consumption of the receiving device.
  • a buffer interval may be set between each interval, and specifically, the buffer interval may be denoted as ⁇ .
  • the plurality of intervals of the absolute moving speed division of the transmitting device may be [V 1 , V 2 ], [V 2 + ⁇ , V 3 ], [V 3 + ⁇ , V 4 ] ... [V N + ⁇ , V N+1 ], correspondingly, the bandwidth portion corresponding to [V 1 , V 2 ] is BWP 0 -BWP N , and the bandwidth portion corresponding to [V 2 + ⁇ , V 3 ] is BWP N+1 -BWP M , [ The bandwidth portion corresponding to V 3 + ⁇ , V 4 ] is BWP M+1 - BWP K , and the bandwidth portion corresponding to [V N + ⁇ , V N+1 ] is BWP X - BWP Y , when the absolute movement of the transmitting device When the speed is greater than V N+1 , the bandwidth portion corresponding to the absolute moving speed of the transmitting device is still BWP X -BWP Y .
  • the bandwidth portion of the Sidelink channel when it is detected that the absolute moving speed of the transmitting device is in the interval [V 2 + ⁇ , V 3 ], the bandwidth portion of the Sidelink channel may be determined to be BWP N+1 according to the first mapping relationship.
  • BWP M When it is detected that the absolute moving speed of the transmitting device is in the interval [V 3 + ⁇ , V 4 ], the bandwidth portion of the Sidelink channel can be determined to be BWP M+1 -BWP K according to the first mapping relationship described above.
  • N, M, K, X and Y appearing above are all positive integers.
  • the following describes the divisional interval diagram of the absolute moving speed of the transmitting device shown in FIG. 2 as an example, and describes how to determine the Sidelink channel according to the first mapping relationship and the detected absolute moving speed of the transmitting device.
  • the bandwidth portion describes the divisional interval diagram of the absolute moving speed of the transmitting device shown in FIG. 2 as an example, and describes how to determine the Sidelink channel according to the first mapping relationship and the detected absolute moving speed of the transmitting device. The bandwidth portion.
  • the bandwidth portion corresponding to the interval [V 1 , V 2 ] is BWP 1
  • the bandwidth portion corresponding to the interval [V 2 + ⁇ , V 3 ] is BWP 20
  • the absolute moving speed of the transmitting device has exceeded V 2
  • it is less than V 2 + ⁇ the bandwidth portion of the Sidelink channel is BWP 1
  • the absolute moving speed of the transmitting device is greater than V 2 + ⁇
  • the bandwidth portion of the Sidelink channel is BWP 20 .
  • the buffer intervals set in the respective speed intervals may be the same or different.
  • the service priority may be divided into P 1 , P 2 , P 3 , ..., P N priority levels, and the above N priorities
  • the bandwidth portions corresponding to the ranks are BWP 0 -BWP N , BWP N+1 -BWP M , BWP M+1 -BWP V ,..., BWP W -BWP Q , respectively .
  • the values of the above N, M, V, W, and Q are all positive integers.
  • the range of the delay requirement that may occur in the service is divided into the following interval [t 0 -t 1 ], [t 1 - t 2 ], [t 2 -t 3 ],...,[t n -t n+1 ], the bandwidth portions corresponding to the above respective intervals are BWP 0 -BWP N , BWP N+1 -BWP M , BWP M+ 1 -BWP V ,...,BWP W -BWP Q .
  • the bandwidth portion corresponding to the delay requirement of the service is determined as BWP X -BWP Y .
  • the values of N, M, V, W, Q, X, and Y are all positive integers. If the receiving device detects that the delay requirement of the currently processing service is T, determine the delay requirement interval in which the delay request T is located, and then determine the bandwidth portion corresponding to the delay request interval as the bandwidth portion of the Sidelink channel.
  • the service reliability refers to the service required bit error rate or the block error rate
  • the error rate or error of the service request may be
  • the block rate is divided into a plurality of intervals: lower than B 1 , [B 1 , B 2 ], [B 2, B 3, ], ..., [B N-1 , B N ], and the bandwidth corresponding to each of the above intervals
  • the part is BWP 0 -BWP K , BWP K+1 -BWP M , BWP M+1 -BWP V, ..., BWP W -BWP Q .
  • the bandwidth portion corresponding to the bit error rate or the block error rate is determined as BWP X -BWP Y .
  • the values of N, M, V, W, Q, X, and Y are all positive integers. If the receiving device detects the service required error rate or the block error rate of the currently processed service, determine the interval in which the currently detected error rate or the block error rate is located, and then determine the bandwidth portion corresponding to the interval as Sidelink. The bandwidth portion of the channel.
  • the possible range of the throughput requirement of the service may be divided into the following multiple intervals: [T 0 -T 1 ], [T 1 - T 2 ], [T 2 - T 3 ], ..., [T n - T n+1 ], the bandwidth portions corresponding to the above respective intervals are: BWP 0 - BWP N , BWP N+1 - BWP M , BWP M+1 -BWP V ,...,BWP W -BWP Q .
  • the bandwidth portion corresponding to the throughput requirement is determined as BWP X -BWP Y .
  • the values of N, M, V, W, Q, X, and Y are all positive integers. If the receiving device detects that the throughput requirement of the currently processing service is T, first determine the interval corresponding to T, and then determine the bandwidth portion corresponding to the interval as the bandwidth portion of the Sidelink channel.
  • the possible value range of the service occupied bandwidth may be divided into the following multiple intervals: [B 0 -B 1 ], [B 1 - B 2 ], [B 2 -B 3 ],...,[B n -B n+1 ], the bandwidth portions corresponding to the respective bandwidth intervals are: BWP 0 -BWP N , BWP N+1 -BWP M , BWP M+1 -BWP V ,...,BWP W -BWP Q .
  • the bandwidth portion corresponding to the bandwidth is determined as BWP X -BWP Y .
  • the values of N, M, V, W, Q, X, and Y are all positive integers.
  • the possible range of the RSRP value of the Sidelink channel may be divided into the following multiple intervals: [R 0 -R 1 ], [R 1 -R 2 ], [R 2 -R 3 ],...,[R n -R n+1 ], the bandwidth portion corresponding to the plurality of intervals sequentially is BWP 0 -BWP N , BWP N+1 -BWP M , BWP M+1 -BWP V ,...,BWP W -BWP Q .
  • the bandwidth portion corresponding to the RSRP value is determined as BWP X -BWP Y .
  • the values of N, M, V, W, Q, X, and Y are all positive integers.
  • the possible range of the SINR value of the Sidelink channel may be divided into the following multiple intervals: [S 0 -S 1 ], [S 1 -S 2 ], [S 2 -S 3 ],...,[S n -S n+1 ], the bandwidth portion corresponding to each of the above sections is BWP 0 -BWP N , BWP N+1 -BWP M , BWP M+1 -BWP V ,...,BWP W -BWP Q .
  • the bandwidth portion corresponding to the SINR value is determined as BWP X -BWP Y .
  • the values of N, M, V, W, Q, X, and Y are all positive integers.
  • the possible range of the frequency offset value of the Sidelink channel can be divided into the following multiple frequency offset value intervals: [F 0 -F 1 ], [F 1 -F 2 ], [F 2 -F 3 ],...,[F n -F n+1 ], the bandwidth portions corresponding to the respective frequency offset value intervals are BWP 0 -BWP N , BWP N+1 -BWP M , BWP M+1 -BWP V ,...,BWP W -BWP Q .
  • the bandwidth portion corresponding to the frequency offset value is determined as BWP X -BWP Y .
  • the receiving end device determines a frequency offset value interval corresponding to the currently detected frequency offset value, and determines a bandwidth portion corresponding to the frequency offset value interval as a bandwidth portion of the Sidelink channel.
  • the above enumerates the specific implementation process of determining the bandwidth portion of the Sidelink channel according to each influencing factor and the first mapping relationship between the influencing factor and the bandwidth portion. After determining the bandwidth portion of the Sidelink channel by the above process, performing the above step (2), determining the SCS of the Sidelink channel according to the second mapping relationship between the bandwidth portion of the Sidelink channel and the SCS.
  • the following describes the determination process of the SCS of the above Sidelink channel by taking the absolute moving speed of the transmitting device as an example.
  • the bandwidth portion corresponding to the speed interval [0, 5] is BWP 0 - BWP 5
  • the SCS used for the bandwidth portion is 15 kHz
  • the speed interval [5+3, 20] corresponds.
  • the bandwidth portion is BWP 6 -BWP 15 , the SCS used in the bandwidth portion is 15 kHz; the bandwidth portion corresponding to the speed interval [20+5, 50] is BWP 16 -BWP 30 , and the SCS used in the bandwidth portion is 30 kHz;
  • the bandwidth part corresponding to the interval [50+10,90] is BWP 31 -BWP 45 , the SCS used in the bandwidth part can be 60 kHz;
  • the bandwidth part corresponding to the speed interval [90+15,150] is BWP 46 -BWP 60 ,
  • the SCS used in the bandwidth portion may be 60 kHz; wherein the unit of absolute moving speed of the transmitting device in each of the above speed intervals is km/h. When the absolute moving speed of the transmitting device is greater than 150 km/h, the corresponding bandwidth portion is BWP 61 -BWP 75 , and the SCS used for the bandwidth portion may be 120 kHz.
  • the receiving device needs to determine the communication system parameter of the Sidelink channel, first detecting the current absolute moving speed of the transmitting device; then, determining the speed interval in which the current absolute moving speed of the transmitting device is located; and then the bandwidth portion corresponding to the speed interval Determined as the bandwidth portion of the Sidelink channel; finally, the SCS used by the bandwidth portion of the Sidelink channel is determined as the SCS of the Sidelink channel.
  • the absolute moving speed of the transmitting device when the absolute moving speed of the transmitting device is currently detected to be 10 km/h, the current absolute moving speed of the transmitting device falls within the speed interval [5+3, 20], and the speed interval
  • the corresponding bandwidth portion of [5+3,20] is BWP 6 -BWP 15 , and therefore, it can be determined that in this case, the bandwidth portion corresponding to the Sidelink channel is BWP 6 -BWP 15 ; and the bandwidth portion BWP 6 -BWP 15
  • the SCS used is 15 kHz, so it can be determined that the SCS of the Sidelink channel is 15 kHz.
  • the communication system parameters of the Sidelink channel can be determined according to two or more influencing factors.
  • the communication system parameters of the Sidelink channel may be determined according to two factors of influence of the absolute moving speed of the transmitting device and the priority of the service currently being processed by the receiving device; or may be based on the service currently being processed by the receiving device.
  • the priority level and the delay of the service require two influencing factors to determine the communication system parameters of the Sidelink channel.
  • it may also be a combination of two or more other influencing factors.
  • the combined form of the influencing factors is not limited thereto.
  • the process of determining the bandwidth portion of the Sidelink channel in the above step (1) may be combined.
  • the weight of each influencing factor is taken into account.
  • the bandwidth portion corresponding to the influencing factor having a larger weight is determined as the bandwidth portion of the Sidelink channel.
  • the following will take an example of combining the two levels of influencing factors according to the priority level of the service being processed by the receiving device and the delay requirement of the service, and exemplifying how to determine the SCS of the Sidelink channel according to two influencing factors. It is assumed that the weight of the priority of the service is A, and the weight of the delay required by the service is B.
  • the bandwidth part corresponding to the service priority P 1 is BWP 0 -BWP 5
  • the SCS used by the bandwidth part is 15 kHz
  • the bandwidth part corresponding to the service priority P 2 is BWP 6 -BWP 15
  • the SCS used in the bandwidth part is 15 kHz
  • the bandwidth part corresponding to the service priority P 3 is BWP 16 -BWP 30
  • the SCS used in the bandwidth part is 30 kHz;
  • the bandwidth part corresponding to the delay requirement interval [0, 10] is BWP 16 -BWP 30 , and the SCS used in the bandwidth part is 30 kHz;
  • the delay requirement interval [10, 30] corresponds
  • the bandwidth part is BWP 6 -BWP 15 , the SCS used in the bandwidth part is 15 kHz;
  • the bandwidth part corresponding to the delay requirement interval [30, 100] is BWP 0 -BWP 5 , and the SCS used in the bandwidth part is 15 kHz;
  • the unit of each delay requirement in the delay requirement interval is milliseconds.
  • the receiving device detects that the priority of the service it is currently processing is P 3 , and the delay requirement of the service is required to be located in the interval [0, 10].
  • the bandwidth corresponding to the two influencing factors is BWP 16 -BWP. 30.
  • the bandwidth portion of the Sidelink channel is BWP 16 -BWP 30 ; however, if the receiving device detects that the priority of the currently processing service is P 2 , the service delay requirement is located in the interval [0, 10], for the priority of the service, the bandwidth part corresponding to P 2 is BWP 6 -BWP 15 , and the bandwidth part corresponding to the interval [0, 10] is BWP 16 -BWP 30 for the delay requirement of the service.
  • the bandwidth components corresponding to the two influencing factors are different. In this case, the bandwidth portion of the Sidelink channel needs to be determined according to the weights corresponding to the two influencing factors respectively.
  • the bandwidth portion of the Sidelink channel is BWP 6 -BWP 15 , and the SCS 15 kHz used by the bandwidth portion BWP 6 -BWP 15 is determined as the Sidelink channel.
  • SCS if the weight A of the priority of the service is smaller than the weight of the delay requirement of the service, it is determined that the bandwidth portion of the Sidelink channel is BWP 16 -BWP 30 , and the SCS 30 kHz used by the bandwidth portion BWP 16 -BWP 30 is determined as the Sidelink channel.
  • the above specifically describes the specific implementation process of determining the parameters of the communication system according to the mapping relationship between the influencing factors of the parameters of the communication system and the parameters of the communication system.
  • the mapping relationship between each influencing factor and the SCS can be directly established, and then received.
  • the end device determines the SCS according to the detected influencing factors and the above mapping relationship.
  • the embodiment of the present disclosure only introduces two specific implementation processes for determining the parameters of the communication system, and the specific implementation manner of determining the parameters of the communication system according to the mapping relationship between the influencing factors of the parameters of the communication system and the parameters of the communication system is not limited thereto.
  • the communication system parameters are determined according to the obtained first indication information and a mapping relationship between the influencing factors of the communication system parameters and the communication system parameters.
  • the communication system parameters include the first communication system parameter and the second communication system parameter. Therefore, the first communication system parameter may be determined according to the obtained first indication information, and the second communication system parameter is determined according to a mapping relationship between the influencing factor of the communication system parameter and the communication system parameter; or, according to the obtained first The indication information determines the second communication system parameter, and determines the first communication system parameter according to a mapping relationship between the influencing factor of the communication system parameter and the communication system parameter.
  • the method for acquiring the parameters of the foregoing communication system includes at least the following situations:
  • the first indication information is obtained from the network message sent by the network side device, and the first communication system parameter is determined according to the first indication information; according to the influencing factors currently detected by the receiving end device, and the influencing factors of the communication system parameters and a mapping relationship between communication system parameters to determine a second communication system parameter;
  • the first indication information is obtained from the network message sent by the network side device, and the second communication system parameter is determined according to the first indication information; according to the influencing factors currently detected by the receiving end device, and the influencing factors of the communication system parameters and a mapping relationship between communication system parameters to determine a second communication system parameter;
  • the device decodes the SCI message sent by the physical side link control channel, obtains the first indication information from the decoded SCI information, and then determines the second communication system parameter according to the first indication information.
  • the receiving end device may determine the communication system parameter according to the obtained first indication information; and/or, according to the mapping between the influencing factor of the communication system parameter and the communication system parameter The relationship determines the communication system parameters; thus, the receiving end device is prevented from finding the communication system parameters by blind detection, thereby reducing the workload of the receiving end device and the complexity of decoding, and improving the communication efficiency.
  • FIG. 3 is a schematic diagram of a first flow chart of a method for indicating a parameter of a communication system according to an embodiment of the present disclosure. The method shown in FIG. 3 includes at least steps 302 to 304.
  • Step 302 Determine a communication system parameter according to a mapping relationship between a factor of a communication system parameter and a communication system parameter, where the communication system parameter includes an SCS of a Sidelink channel.
  • determining the communication system parameters according to the mapping relationship between the influencing factors of the communication system parameters and the communication system parameters may include the following steps 1, step 2, and step 3:
  • Step 1 Obtain the influencing factors of the parameters of the communication system
  • Step 2 determining a bandwidth portion of the Sidelink channel according to the first mapping relationship between the influencing factor and the bandwidth portion of the Sidelink channel;
  • Step 3 Determine the SCS of the Sidelink channel according to the second mapping relationship between the bandwidth portion of the Sidelink channel and the SCS.
  • the network side device may randomly detect the influencing factors of the communication system parameters according to a set period, and then, according to the detected parameter values of the influencing factors, and the mapping of the influencing factors of the communication system parameters and the communication system parameters. Relationship, determining communication system parameters.
  • the above influencing factors include at least one of the following:
  • the absolute moving speed of the transmitting device The absolute moving speed of the transmitting device, the absolute moving speed of the receiving device, the relative moving speed between the transmitting device and the receiving device, the related parameters of the traffic currently transmitted by the Sidelink channel, and the Sidelink channel state measurement.
  • the relative moving speed between the sending end device and the receiving end device includes the following two situations: a relative moving speed of the transmitting end device relative to the receiving end device, and a relative moving speed of the receiving end device relative to the transmitting end device.
  • the influencing factors of the foregoing communication system parameters may include an absolute moving speed of the transmitting end device, an absolute moving speed of the receiving end device, a relative moving speed between the transmitting end device and the receiving end device, and Sidelink.
  • the related parameters of the foregoing service include at least one of the following:
  • the priority level of the service The priority level of the service, the delay requirement of the service, the reliability of the service, the throughput demand value of the service, and the bandwidth occupied by the service;
  • the above Sidelink channel state measurement value includes at least one of the following:
  • Frequency offset value RSRP value
  • SINR value SINR
  • the related parameters of the service may include one or more combinations of a service priority level, a service delay requirement, a service reliability, a service throughput requirement value, and a service occupied bandwidth.
  • the above Sidelink channel state measurement may include one or more of a frequency offset value, an RSRP value, and an SINR value.
  • the specific process may refer to the foregoing embodiment, and details are not described herein again.
  • the specific process of determining communication system parameters may refer to the foregoing embodiment, and details are not described herein again.
  • the communication system parameter may include a bandwidth part of a CP or a Sidelink channel of the Sidelink channel in addition to the SCS of the Sidelink channel.
  • the communication system parameter includes a first communication system parameter that decodes information carried on a physical side link control channel; and/or decodes information carried on a physical side link data channel. Second communication system parameter.
  • the Sidelink channel may include only a physical side link control channel; or may include only a physical side link data channel; or both a physical side link control channel and a physical side link data channel.
  • the communication system parameter includes only the first communication system parameter; if the Sidelink channel includes only the physical side link data channel, Correspondingly, the communication system parameter includes only the second communication system parameter; if the Sidelink channel includes a physical side link control channel and a physical side link data channel, corresponding to the communication system parameter, the first communication system parameter and the second Communication system parameters.
  • Step 304 Send first indication information to the receiving end device, where the first indication information is used to indicate a communication system parameter, and the communication system parameter is used by the receiving end device to decode information carried on the Sidelink channel.
  • sending the first indication information to the receiving device may include:
  • the network message includes one of the following messages: an SI message, an RRC message, or a DCI message.
  • the first indication information may be carried in the SI message and sent to the receiving end device, or may be carried in the RRC message and sent to the receiving end device, or may be carried in the DCI message and sent to the receiving end device.
  • the foregoing only enumerates the specific types of the three network messages, and the type of the network message may also be other message types.
  • the foregoing is merely an exemplary description, and the specific type of the network message is not limited thereto.
  • the method for determining the communication system parameters includes at least the following situations, which will be described below through specific embodiments.
  • FIG. 4 is a second schematic flowchart of a method for determining parameters of a communication system according to an embodiment of the present disclosure. The method shown in FIG. 4 includes at least the following steps:
  • Step 402 The network side device detects a parameter value of an influencing factor of the parameter of the communication system.
  • Step 404 The network side device determines the first communication system parameter and the second communication system parameter according to the parameter value and the mapping relationship between the influencing factor of the communication system parameter and the communication system parameter.
  • Step 406 The network side device sends a network message to the receiving end device, where the network message carries first indication information, where the first indication information indicates the first communication system parameter and the second communication system parameter.
  • Step 408 After receiving the network message sent by the network side device, the receiving end device obtains the first indication information from the network message.
  • Step 410 The receiving end device determines the first communication system parameter and the second communication system parameter according to the first indication information.
  • the receiving end device determines the first communication system parameter and the second communication system parameter
  • the first communication system parameter is used to decode the information carried by the physical side link control channel
  • the second communication system parameter is used to the physical side link.
  • the information carried by the data channel is decoded.
  • FIG. 5 is a third schematic flowchart of a method for determining parameters of a communication system according to an embodiment of the present disclosure. The method shown in FIG. 5 includes at least the following steps:
  • Step 502 The network side device detects a parameter value of an influencing factor of the parameter of the communication system.
  • Step 504 The network side device determines the first communication system parameter according to the parameter value of the influencing factor and the mapping relationship between the influencing factor of the communication system parameter and the communication system parameter.
  • Step 506 The network side device sends a network message to the receiving end device, where the network message carries the first indication information, where the first indication information is used to indicate the first communication system parameter.
  • Step 508 The parameter value of the influencing factor of the parameter of the communication system is detected by the receiving end device;
  • Step 510 The receiving end device determines the second communication system parameter according to the parameter value of the influencing factor and the mapping relationship between the influencing factors of the communication system parameter and the communication system parameter.
  • Step 512 After receiving the network message sent by the network side device, the receiving device obtains the first indication information from the network message.
  • Step 514 The receiving end device determines the first communication system parameter according to the first indication information.
  • the foregoing steps of determining the first communication system parameter and determining the second communication system parameter may be performed simultaneously, or there may be a sequence, and the embodiment of the present disclosure does not determine the first communication system parameter and determine the foregoing.
  • the order of the second communication system parameters is defined.
  • the receiving end device determines the first communication system parameter and the second communication system parameter
  • the first communication system parameter is used to decode the information carried by the physical side link control channel
  • the second communication system parameter is used to the physical side link.
  • the information carried by the data channel is decoded.
  • the receiving end device may determine the first communication system parameter according to the mapping relationship between the influencing factors of the communication system parameters and the communication system parameter, and determine the second communication system according to the first indication information obtained from the network message. parameter.
  • the communication system parameter may be determined according to the mapping relationship between the influence factor of the communication system parameter and the communication system parameter, and the first indication of the communication system parameter indicating the Sidelink channel may be
  • the information is sent to the receiving device, so that the receiving device can directly determine the communication system parameter for decoding the information carried on the Sidelink channel according to the first indication information.
  • the method of determining the communication system by means of blind detection is avoided, the workload of the receiving end device and the complexity of decoding are reduced, and the communication performance is improved.
  • an embodiment of the present disclosure further provides a method for indicating a parameter of a communication system, which is applied to a source device, where the device at the device refers to a terminal device that sends information through a Sidelink channel.
  • the detailed description of the same parts as the foregoing method for determining the parameters of the communication system may refer to the content of the foregoing embodiment, and the embodiment is not repeated.
  • FIG. 6 is a second schematic flowchart of a method for indicating a parameter of a communication system according to an embodiment of the present disclosure. The method shown in FIG. 6 includes at least steps 602 to 604.
  • Step 602 Determine a communication system parameter, where the communication system parameter is determined according to the acquired second indication information; and/or, according to a mapping relationship between a factor of the communication system parameter and a communication system parameter; wherein, the communication system parameter includes SCS of the Sidelink channel.
  • the communication system parameter may include a bandwidth part of a CP or a Sidelink channel of the Sidelink channel in addition to the SCS of the Sidelink channel.
  • determining the communication system parameters in the above step 602 includes at least the following three cases:
  • the foregoing second indication information is obtained from a network message sent by the network side device.
  • the network message may be any one of an SI message, an RRC message, and a DCI message.
  • the network side device periodically or non-periodically detects various influencing factors of the communication system, determines the communication system parameters according to the detected influencing factors, and the mapping relationship between the influencing factors and the communication system parameters; and then indicates the communication system parameters.
  • the indication information is carried in the SI message, or the RRC message or the DCI message, and sent to the source device.
  • network message may also be other types of messages, which are merely exemplary illustrations and do not constitute a specific type of network message.
  • step 602 determining the communication system parameters according to the mapping relationship between the influencing factors of the communication system parameters and the communication system parameters, at least including the following steps 1, step 2, and step 3;
  • Step 1 Obtain the influencing factors of the parameters of the communication system
  • Step 2 determining a bandwidth portion of the Sidelink channel according to the first mapping relationship between the influencing factor and the bandwidth portion of the Sidelink channel;
  • Step 3 Determine the SCS of the Sidelink channel according to the second mapping relationship between the bandwidth portion of the Sidelink channel and the SCS.
  • the transmitting end device may randomly detect the parameter value of the influencing factor of the communication system parameter according to a set period, and then, according to the detected parameter value, and the mapping of the influencing factor of the communication system parameter and the communication system parameter. Relationship, determining communication system parameters.
  • the transmitting end device determines the communication system parameter
  • the information is sent to the receiving end device through the Sidelink channel according to the communication system parameter.
  • the above influencing factors include at least one of the following:
  • the absolute moving speed of the transmitting device The absolute moving speed of the transmitting device, the absolute moving speed of the receiving device, the relative moving speed between the transmitting device and the receiving device, the related parameters of the traffic currently transmitted by the Sidelink channel, and the Sidelink channel state measurement.
  • the relative moving speed between the sending end device and the receiving end device includes the following two situations: a relative moving speed of the transmitting end device relative to the receiving end device, and a relative moving speed of the receiving end device relative to the transmitting end device.
  • the influencing factors of the foregoing communications system may include an absolute moving speed of the transmitting end device, an absolute moving speed of the receiving end device, a relative moving speed between the transmitting end device and the receiving end device, and a Sidelink channel.
  • an absolute moving speed of the transmitting end device may be included in the influencing factors of the foregoing communications system.
  • an absolute moving speed of the transmitting end device may include an absolute moving speed of the transmitting end device, an absolute moving speed of the receiving end device, a relative moving speed between the transmitting end device and the receiving end device, and a Sidelink channel.
  • One or more of the parameters of the currently transmitted service and the Sidelink channel state measurements may include an absolute moving speed of the transmitting end device, an absolute moving speed of the receiving end device, a relative moving speed between the transmitting end device and the receiving end device.
  • the related parameters of the foregoing service include at least one of the following:
  • the priority level of the service The priority level of the service, the delay requirement of the service, the reliability of the service, the throughput demand value of the service, and the bandwidth occupied by the service;
  • the above Sidelink channel state measurement value includes at least one of the following:
  • Frequency offset value RSRP value
  • SINR value SINR
  • the related parameters of the service may include one or more combinations of a service priority level, a service delay requirement, a service reliability, a service throughput requirement value, and a service occupied bandwidth.
  • the above Sidelink channel state measurement may include one or more of a frequency offset value, an RSRP value, and an SINR value.
  • the specific process may refer to the foregoing embodiment, and details are not described herein again.
  • the specific process of determining communication system parameters may refer to the foregoing embodiment, and details are not described herein again.
  • Step 604 Send first indication information to the receiving end device, where the first indication information is used to indicate a communication system parameter, and the communication system parameter is used by the receiving end device to decode information carried on the Sidelink channel.
  • the communication system parameter includes a first communication system parameter that decodes information carried on a physical side link control channel; and/or decodes information carried on a physical side link data channel. Second communication system parameter.
  • the communication system parameter includes only the first communication system parameter; if the Sidelink channel includes only the physical side link data channel, correspondingly, the foregoing communication system The parameter includes only the second communication system parameter; if the Sidelink channel includes a physical side link control channel and a physical side link data channel, correspondingly, the communication system parameters include the first communication system parameter and the second communication system parameter.
  • determining the communication system parameters in the foregoing step 602 includes determining the first communication system parameter and the second The communication system parameters
  • the specific determination process includes at least the following four situations:
  • Case A The network side device sends a network message to the sending end device, where the network message carries second indication information indicating the first communication system parameter and the second communication system parameter; the sending end device obtains the first information from the received network message. Determining information, and determining, according to the second indication information, the first communication system parameter and the second communication system parameter;
  • the transmitting device periodically or non-periodically detects parameter values of various influencing factors of the communication system parameters, and then determines the first communication system parameters and the first according to the detected parameter values and the mapping relationship between the influencing factors and the communication system parameters.
  • Case C The network side device sends a network message to the sending end device, where the network message carries the second indication information indicating the parameter of the first communication system, and the sending end device obtains the second indication information from the received network message, and according to The second indication information determines the first communication system parameter; in addition, the transmitting end device periodically or non-periodically detects the parameter value of each influencing factor of the communication system parameter, and then according to the detected parameter value, and the influencing factor and the communication system parameter The mapping relationship determines the second communication system parameter;
  • the network side device sends a network message to the sending end device, where the network message carries the second indication information indicating the parameter of the second communication system, and the sending end device obtains the second indication information from the received network message, and according to The second indication information determines the second communication system parameter; in addition, the transmitting end device periodically or non-periodically detects the parameter value of each influencing factor of the communication system parameter, and then according to the detected parameter value, and the influencing factor and the communication system parameter The mapping relationship determines the first communication system parameters.
  • the first indication information is sent to the receiving end device, where the first indication information indicating the second communication system parameter is sent to the receiving end device, which specifically includes:
  • the SCI information is sent to the receiving device, where the SCI information carries the first indication information, where the first indication information is used to indicate the second communication system parameter.
  • the SCI information is sent to the receiving end device through the physical side link control channel. Therefore, when the receiving end device receives the SCI information sent by the sending end device, the physical side link control channel needs to be used first.
  • the bearer information is decoded, and then the first indication information is obtained from the decoded SCI information, and the second communication system parameter is determined according to the first indication information, and the information carried by the physical side link data channel is used by using the second communication system parameter. Decode.
  • the receiving end device needs to first determine the first communication system parameter, and the first communication system parameter may be determined by the receiving end device according to the mapping relationship between the influencing factors of the communication system parameter and the communication system parameter, or may be determined according to the slave network.
  • the first indication information acquired by the side device is determined.
  • FIG. 7 is a fourth schematic flowchart of a method for determining a parameter of a communication system according to an embodiment of the present disclosure. The method is performed by a sender device and a receiver device. The method shown in FIG. 7 includes at least the following steps:
  • Step 702 The sending end device acquires a parameter value of an influencing factor of a parameter of the communication system.
  • Step 704 The transmitting device determines the communication system parameter according to the parameter value and the mapping relationship between the influencing factors of the communication system parameter and the communication system parameter.
  • the communication system parameters determined in the above step 704 include the first communication system parameter and the second communication system parameter.
  • Step 706 The sending end device sends the SCI information to the receiving end device by using the physical side link control channel, where the information carries the first indication information indicating the parameters of the second communication system.
  • Step 708 The receiving end device determines the first communication system parameter according to a mapping relationship between the influencing factors of the communication system parameters and the communication system parameters.
  • Step 710 The receiving end device decodes the SCI information carried on the received physical side link control channel by using the first communication system parameter.
  • Step 712 The receiving end device acquires first indication information indicating the parameters of the second communication system from the decoded SCI information.
  • Step 714 The receiving end device determines the second communication system parameter according to the first indication information.
  • the receiving device determines the second communication system parameter
  • the information carried on the physical side link data channel is decoded using the second communication system parameter.
  • FIG. 8 is a schematic flowchart of a method for determining a parameter of a communication system according to an embodiment of the present disclosure. The method is performed by a network side device, a sender device, and a receiver device. The method shown in FIG. 8 includes at least the following steps. :
  • Step 802 The network side device determines the first communication system parameter.
  • the network side device determines the first communication system parameter according to the mapping relationship between the influencing factors of the communication system parameters and the communication system parameters.
  • Step 804 The network side device sends a network message to the receiving end device, where the network message carries first indication information indicating a parameter of the first communication system.
  • step 806 the transmitting device determines the communication system parameters.
  • the transmitting device determines the communication system parameters according to the mapping relationship between the influencing factors of the communication system parameters and the communication system parameters, and the communication system parameters determined by the transmitting device include the first communication system parameter and the second communication system. parameter.
  • Step 810 The sending end device sends the SCI information to the receiving end device, where the SCI information carries the first indication information indicating the parameters of the second communications system.
  • step 810 the transmitting end device encodes the SCI information according to the first communication system parameter, and then sends the SCI information to the receiving end device through the physical side link control channel.
  • Step 812 After receiving the network message sent by the network side device, the receiving end device acquires first indication information indicating the parameter of the first communication system from the network message.
  • Step 814 The receiving end device decodes the received SCI information by using the first communication system parameter.
  • Step 816 The receiving end device acquires first indication information indicating the second communication system parameter from the decoded SCI information.
  • Step 818 The receiving end device determines the second communication system parameter according to the first indication information.
  • the network side device sends, to the receiving end device, a network message that the network message carries the first indication information, and the sending end device sends the SCI information that carries the first indication information to the receiving end device,
  • the execution may be performed synchronously or in a sequential order, and the embodiment of the present disclosure does not limit the execution order of the above two processes.
  • the method for indicating a communication system parameter may determine a communication system parameter according to a mapping relationship between a factor of a communication system parameter and a communication system parameter, and indicate a first indication information of a communication system parameter of the Sidelink channel.
  • the device is sent to the receiving device, so that the receiving device can directly determine the communication system parameter for decoding the information carried on the Sidelink channel according to the first indication information.
  • the method of determining the communication system by means of blind detection is avoided, the workload of the receiving end device and the complexity of decoding are reduced, and the communication performance is improved.
  • the embodiment of the present disclosure provides a receiving end device, and the receiving end device provided by the embodiment of the present disclosure can implement the processes implemented by the receiving device in the foregoing embodiment.
  • FIG. 9 is a schematic structural diagram of a module of a receiving end device according to an embodiment of the present disclosure.
  • the device shown in FIG. 9 includes:
  • the first determining module 901 is configured to determine a communication system parameter according to the obtained first indication information; and/or determine a communication system parameter according to a mapping relationship between an influencing factor of the communication system parameter and a communication system parameter;
  • the communication system parameters include the SCS of the Sidelink channel; the communication system parameters are used to decode the information carried on the Sidelink channel.
  • the foregoing communication system parameter further includes: a bandwidth part of a CP or a Sidelink channel of the Sidelink channel.
  • the communication system parameter includes a first communication system parameter that decodes information carried on the physical side link control channel; and/or a second communication that decodes information carried on the physical side link data channel.
  • System parameters include a first communication system parameter that decodes information carried on the physical side link control channel; and/or a second communication that decodes information carried on the physical side link data channel.
  • the first indication information indicates the first communication system parameter
  • the foregoing first indication information is obtained from a network message sent by the network side device.
  • the first indication information indicates the second communication system parameter
  • the first indication information is obtained by any one of the following methods:
  • the network message includes one of the following messages:
  • SI message RRC message, or DCI message.
  • the foregoing first determining module 901 is specifically configured to:
  • the bandwidth portion of the Sidelink channel is determined according to the first mapping relationship between the influencing factors of the communication system parameters and the bandwidth portion; and the SCS of the Sidelink channel is determined according to the second mapping relationship between the bandwidth portion of the Sidelink channel and the SCS.
  • the influencing factors include at least one of the following:
  • the absolute moving speed of the transmitting device The absolute moving speed of the transmitting device, the absolute moving speed of the receiving device, the relative moving speed between the transmitting device and the receiving device, the related parameters of the service currently being processed by the receiving device, and the Sidelink channel state measurement.
  • the related parameters of the foregoing services include at least one of the following:
  • the priority level of the service The priority level of the service, the delay requirement of the service, the reliability value of the service, the throughput demand value of the service, and the bandwidth occupied by the service;
  • the above Sidelink channel state measurement value includes at least one of the following:
  • Frequency offset value RSRP value
  • SINR value SINR
  • the receiving end device provided by the embodiment of the present disclosure may determine the communication system parameter according to the obtained first indication information; and/or determine the communication system parameter according to the mapping relationship between the influencing factor of the communication system parameter and the communication system parameter;
  • the device at the receiving end is prevented from finding the parameters of the communication system by blind detection, thereby reducing the workload of the receiving device and the complexity of decoding, and improving the communication performance.
  • the embodiment of the present disclosure provides a network side device, and the network side device provided by the embodiment of the present disclosure can implement various processes implemented by the network side device in the foregoing embodiment.
  • FIG. 10 is a schematic structural diagram of a module of a network side device according to an embodiment of the present disclosure.
  • the network side device shown in FIG. 10 includes:
  • the second determining module 1001 is configured to determine a communication system parameter according to a mapping relationship between a factor of a communication system parameter and a communication system parameter, where the communication system parameter includes an SCS of a Sidelink channel;
  • the first sending module 1002 is configured to send first indication information to the receiving end device, where the first indication information is used to indicate a communication system parameter, and the communication system parameter is used by the receiving end device to decode information carried on the Sidelink channel. .
  • the foregoing communication system parameter further includes: a bandwidth part of a CP or a Sidelink channel of the Sidelink channel.
  • the communication system parameters include first communication system parameters for decoding information carried on the physical side link control channel; and/or second communication system parameters for decoding information carried on the physical Sidelink channel.
  • the foregoing second determining module 1001 is specifically configured to:
  • the influencing factors include at least one of the following:
  • the absolute moving speed of the transmitting device The absolute moving speed of the transmitting device, the absolute moving speed of the receiving device, the relative moving speed between the transmitting device and the receiving device, the related parameters of the current transmission of the above-mentioned Sidelink channel, and the above-mentioned Sidelink channel state measurement.
  • the related parameters of the foregoing services include at least one of the following:
  • the priority level of the foregoing service the delay requirement of the foregoing service, the reliability value of the service, the throughput demand value of the service, and the bandwidth occupied by the service;
  • the above Sidelink channel state measurement value includes at least one of the following:
  • Frequency offset value RSRP value
  • SINR value SINR
  • the foregoing first sending module 1002 is specifically configured to:
  • the network message includes one of the following messages: an SI message, an RRC message, or a DCI.
  • the network side device may determine the communication system parameter according to the mapping relationship between the influencing factors of the communication system parameter and the communication system parameter, and send the first indication information indicating the communication system parameter of the Sidelink channel to the receiving The terminal device, so that the receiving device can directly determine the communication system parameter for decoding the information carried on the Sidelink channel according to the first indication information.
  • the method of determining the communication system by means of blind detection is avoided, the workload of the receiving end device and the complexity of decoding are reduced, and the communication performance is improved.
  • the embodiment of the present disclosure provides a device for transmitting a device.
  • the device at the sending end of the embodiment of the present disclosure can implement the processes implemented by the device in the foregoing embodiment.
  • FIG. 11 is a schematic structural diagram of a module of a sending end device according to an embodiment of the present disclosure, where the sending end device shown in FIG. 11 includes:
  • a third determining module 1101 configured to determine a communication system parameter, where the communication system parameter is determined according to the acquired second indication information; and/or determined according to a mapping relationship between a factor of the communication system parameter and a communication system parameter;
  • the communication system parameters include an SCS of a Sidelink channel;
  • the second sending module 1102 is configured to send first indication information to the receiving end device, where the first indication information is used to indicate the communication system parameter, and the communication system parameter is used by the receiving end device to carry information on the Sidelink channel. Decode.
  • the foregoing communication system parameter further includes: a bandwidth part of a CP or a Sidelink channel of the Sidelink channel.
  • the communication system parameter includes a first communication system parameter that decodes information carried on the physical side link control channel; and/or a second communication that decodes information carried on the physical side link data channel.
  • System parameters include a first communication system parameter that decodes information carried on the physical side link control channel; and/or a second communication that decodes information carried on the physical side link data channel.
  • the foregoing second sending module 1102 is specifically configured to:
  • the control information SCI of the side link is sent to the receiving device, where the SCI carries the first indication information, and the first indication information indicates the second communication system parameter.
  • the foregoing third determining module 1101 is specifically configured to:
  • the influencing factors include at least one of the following:
  • the absolute moving speed of the transmitting device The absolute moving speed of the transmitting device, the absolute moving speed of the receiving device, the relative moving speed between the transmitting device and the receiving device, the related parameters of the current transmission of the above-mentioned Sidelink channel, and the above-mentioned Sidelink channel state measurement.
  • the related parameters of the foregoing services include at least one of the following:
  • the priority level of the foregoing service the delay requirement of the foregoing service, the reliability value of the service, the throughput demand value of the service, and the bandwidth occupied by the service;
  • the above Sidelink channel state measurement value includes at least one of the following:
  • Frequency offset value RSRP value
  • SINR value SINR
  • the foregoing second indication information is obtained from a network message sent by the network side device.
  • the transmitting end device may determine the communication system parameter according to the mapping relationship between the influencing factors of the communication system parameter and the communication system parameter, and send the first indication information indicating the communication system parameter of the Sidelink channel to the receiving The terminal device, so that the receiving device can directly determine the communication system parameter for decoding the information carried on the Sidelink channel according to the first indication information.
  • the method of determining the communication system by means of blind detection is avoided, the workload of the receiving end device and the complexity of decoding are reduced, and the communication performance is improved.
  • the present embodiment provides a receiving end device, and the receiving end device provided by the embodiment of the present disclosure can implement various processes implemented by the receiving end device in the foregoing embodiment.
  • FIG. 12 is a schematic structural diagram of a receiving end device according to an embodiment of the present disclosure.
  • the receiving end device 1200 includes: at least one processor 1201, a memory 1202, at least one network interface 1204, and a user interface 1203.
  • the various components in the receiving end device 1200 are coupled together by a bus system 1205.
  • bus system 1205 is used to implement connection communication between these components.
  • bus system 1205 includes a power bus, a control bus, and a status signal bus.
  • various buses are labeled as bus system 1205 in FIG.
  • the user interface 1203 may include a display, a keyboard, a pointing device (eg, a mouse, a trackball), a touch panel, or a touch screen.
  • a pointing device eg, a mouse, a trackball
  • touch panel e.g., a touch panel
  • touch screen e.g., a touch screen
  • the memory 1202 in the embodiments 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 programmable read only memory (Erasable PROM, EPROM), or an electric Erase programmable read only memory (EEPROM) 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 (Synchronous DRAM).
  • SDRAM Double Data Rate Synchronous Dynamic Random Access Memory
  • DDRS DRAM Double Data Rate Synchronous Dynamic Random Access Memory
  • ESDRAM Enhanced Synchronous Dynamic Random Access Memory
  • Synchronous Connection Dynamic Random Access Memory Synchronous Connection Dynamic Random Access Memory
  • SLDRAM Synchronous Connection Dynamic Random Access Memory
  • DRRAM direct memory bus random access memory
  • the memory 1202 stores elements, executable modules or data structures, or a subset thereof, or their extended set: an operating system 12021 and an application 12022.
  • the operating system 12021 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 12022 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 12022.
  • the receiving device 1200 further includes: a memory 1202, a processor 1201, a computer program stored on the memory 1202 and executable on the processor 1201.
  • a computer program stored on the memory 1202 and executable on the processor 1201.
  • the method disclosed in the above embodiments of the present disclosure may be applied to the processor 1201 or implemented by the processor 1201.
  • the processor 1201 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 1201 or an instruction in a form of software.
  • the processor 1201 may be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or the like. Programmable logic devices, discrete gates or transistor logic devices, discrete hardware components.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • 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 1202, and the processor 1201 reads the information in the memory 1202 and performs the steps of the above method in combination with its hardware.
  • the computer readable storage medium stores a computer program that, when executed by the processor 1201, implements the steps as in the above embodiments.
  • 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 (DSP Device, DSPD), programmable 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
  • DSP Device Digital Signal Processing Equipment
  • PLD programmable Programmable Logic Device
  • FPGA Field-Programmable Gate Array
  • the techniques described in the embodiments of the present disclosure may be implemented by modules (e.g., 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 receiving end device provided by the embodiment of the present disclosure may determine the communication system parameter according to the obtained first indication information; and/or determine the communication system parameter according to the mapping relationship between the influencing factor of the communication system parameter and the communication system parameter;
  • the device at the receiving end is prevented from finding the parameters of the communication system by blind detection, thereby reducing the workload of the receiving device and the complexity of decoding, and improving the communication performance.
  • this embodiment provides a network side device, and the network side device provided by the embodiment of the present disclosure can implement various processes implemented by the network side device in the foregoing embodiment.
  • FIG. 13 is a schematic structural diagram of a network side device according to an embodiment of the present disclosure.
  • the network side device 1300 includes: a processor 1301, a transceiver 1302, a memory 1303, a user interface 1304, and a bus interface.
  • the network side device 1300 further includes: a computer program stored on the memory 1303 and executable on the processor 1301. When the computer program is executed by the processor 1301, the following steps are implemented:
  • the first indication information is used to indicate the communication system parameter
  • the communication system parameter is used by the receiving end device to decode information carried on the Sidelink channel.
  • the bus architecture may include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 1301 and various circuits of memory represented by memory 1303.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein.
  • the bus interface provides an interface.
  • Transceiver 1302 can be a plurality of components, including a transmitter and a receiver, providing means for communicating with various other devices on a transmission medium.
  • the user interface 1304 may also be an interface capable of externally connecting the required devices, including but not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.
  • the processor 1301 is responsible for managing the bus architecture and general processing, and the memory 1303 can store data used by the processor 1301 in performing operations.
  • the network side device may determine the communication system parameter according to the mapping relationship between the influencing factors of the communication system parameter and the communication system parameter, and send the first indication information indicating the communication system parameter of the Sidelink channel to the receiving The terminal device, so that the receiving device can directly determine the communication system parameter for decoding the information carried on the Sidelink channel according to the first indication information.
  • the method of determining the communication system by means of blind detection is avoided, the workload of the receiving end device and the complexity of decoding are reduced, and the communication performance is improved.
  • the network side device 1300 can implement various processes implemented by the network side device in the foregoing embodiment, and achieve the same technical effect. To avoid repetition, details are not described herein again.
  • the embodiment provides a device for transmitting a device.
  • the device at the sending end of the embodiment of the present disclosure can implement the processes implemented by the device in the foregoing embodiment.
  • FIG. 14 is a schematic structural diagram of a transmitting end device according to an embodiment of the present disclosure.
  • the transmitting end device 1400 includes: at least one processor 1401, a memory 1402, at least one network interface 1404, and a user interface 1403.
  • the various components in the sender device 1400 are coupled together by a bus system 1405.
  • the bus system 1405 is used to implement connection communication between these components.
  • the bus system 1405 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 1405 in FIG.
  • the user interface 1403 may include a display, a keyboard, a pointing device (eg, a mouse, a trackball), a touch panel, or a touch screen.
  • a pointing device eg, a mouse, a trackball
  • touch panel e.g., a touch panel
  • touch screen e.g., a touch screen
  • the memory 1402 in the embodiments 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 programmable read only memory (Erasable PROM, EPROM), or an electric Erase programmable read only memory (EEPROM) 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 (Synchronous DRAM).
  • the memory 1402 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 1402 stores elements, executable modules or data structures, or a subset thereof, or their extended set: an operating system 14021 and an application 14022.
  • the operating system 14021 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 14022 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 14022.
  • the transmitting device 1400 further includes: a memory 1402, a processor 1401, and a computer program stored on the memory 1402 and executable on the processor 1401.
  • a computer program stored on the memory 1402 and executable on the processor 1401.
  • Determining a communication system parameter wherein the communication system parameter is determined according to the acquired second indication information; and/or determined according to a mapping relationship between the influencing factor of the communication system parameter and the communication system parameter; wherein the communication system parameter includes Sidelink SCS of the channel;
  • the method disclosed in the above embodiments of the present disclosure may be applied to the processor 1401 or implemented by the processor 1401.
  • the processor 1401 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 1401 or an instruction in a form of software.
  • the processor 1401 may be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or the like. Programmable logic devices, discrete gates or transistor logic devices, discrete hardware components.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • 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 1402, and the processor 1401 reads the information in the memory 1402, in conjunction with its hardware, to perform the steps of the above method.
  • a computer program is stored on the computer readable storage medium, and when the computer program is executed by the processor 1401, the steps in the above embodiments 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 (DSP Device, DSPD), programmable 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
  • DSP Device Digital Signal Processing Equipment
  • PLD programmable 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 transmitting end device may determine the communication system parameter according to the mapping relationship between the influencing factors of the communication system parameter and the communication system parameter, and send the first indication information indicating the communication system parameter of the Sidelink channel to the receiving The terminal device, so that the receiving device can directly determine the communication system parameter for decoding the information carried on the Sidelink channel according to the first indication information.
  • the method of determining the communication system by means of blind detection is avoided, the workload of the receiving end device and the complexity of decoding are reduced, and the communication performance is improved.
  • the sending end device 1400 can implement various processes implemented by the sending end device in the foregoing embodiment. To avoid repetition, details are not described herein again.
  • the embodiment of the present disclosure further provides a computer readable storage medium, where the computer readable storage medium stores a computer program, and when the computer program is executed by the processor, implements various processes of the communication system parameter determining method in the foregoing embodiment, and can reach The same technical effect, or the various processes of the embodiment of the method for indicating the parameters of the communication system in the above embodiment are implemented when the computer program is executed by the processor, and the same technical effect can be achieved; or, when the computer program is executed by the processor
  • the various processes of the embodiment of the method for indicating the parameters of the communication system in the foregoing embodiment are implemented, and the same technical effect can be achieved to avoid repetition, and details are not described herein again.
  • the computer readable storage medium such as a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.
  • the disclosed systems, devices, and methods may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the embodiments of the present disclosure may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product. Based on such understanding, the technical solution of the embodiments of the present disclosure, or the part contributing to the prior art, or the part of the technical solution, may be embodied in the form of a software product stored in a storage medium.
  • a number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the presently disclosed embodiments.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program codes. .

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Abstract

本公开提供了一种通信系统参数的确定、指示方法及设备，通信系统参数的确定方法包括：根据获取到的第一指示信息确定通信系统参数；和/或，根据通信系统参数的影响因素与通信系统参数之间的映射关系，确定通信系统参数；其中，通信系统参数包括Sidelink信道的SCS；上述通信系统参数，用于对Sidelink信道上承载的信息进行解码。

Description

通信系统参数的确定、指示方法及设备
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号No.201810326737.0的优先权，其全部内容通过引用包含于此。
技术领域
本公开涉及通信技术领域，尤其涉及一种通信系统参数的确定、指示方法及设备。
背景技术
目前，第五代移动通信技术(fifth-generation，5G)的无线接入技术(New Radio Access Technology，NR)支持多种通信系统参数(Numerology)，通信系统参数可以由子载波间隔和循环前缀等定义。NR的旁链路(sidelink)上，通信系统参数可以有多种可能性，例如，子载波间隔可以为15kHz、30kHz、60kHz、120kHz、240kHz等等。
一般的，发送端设备在给接收端设备发送信息时，需要使用通信系统参数对信息进行编码，并通过旁链路(Sidelink)信道发送给接收端设备。相应的，当接收端设备接收到发送端设备通过Sidelink信道传输的信息后，需要使用与发送端设备编码相同的通信系统参数对Sidelink信道承载的信息进行解码。但是，接收端设备并不知道发送端设备所使用的通信系统参数的具体参数值。
相关技术中，接收端设备在接收到信息后，一般通过盲检的方式确定解码的通信系统参数。但是，采用盲检的方式，会大大增加接收端设备的工作量，使得接收端设备解码的复杂度高，因此，亟待解决。
发明内容
本公开实施例的目的是提供一种通信系统参数的确定、指示方法及设备，以解决接收端设备的工作量以及解码的复杂度高的问题。
为解决上述技术问题，本公开实施例是这样实现的：
第一方面，本公开实施例提供了一种通信系统参数的确定方法，应用于接收端设备，该方法包括：
根据获取到的第一指示信息确定通信系统参数；和/或，根据通信系统参数的影响因素与通信系统参数之间的映射关系，确定所述通信系统参数；其中，所述通信系统参数包括Sidelink信道的子载波间隔SCS；所述通信系统参数，用于对所述Sidelink信道上承载的信息进行解码。
第二方面，本公开实施例还提供了一种通信系统参数的指示方法，应用于网络侧设备，该方法包括：
根据通信系统参数的影响因素与通信系统参数的映射关系，确定通信系统参数；其中，所述通信系统参数包括所述Sidelink信道的子载波间隔SCS；
向接收端设备发送第一指示信息；其中，所述第一指示信息用于指示所述通信系统参数，所述通信系统参数用于接收端设备对所述Sidelink信道上承载的信息进行解码。
第三方面，本公开实施例还提供了一种通信系统参数的指示方法，应用于发送端设备，该方法包括：
根据通信系统参数的影响因素与通信系统参数的映射关系，确定通信系统参数；其中，所述通信系统参数包括所述Sidelink信道的子载波间隔SCS；
向接收端设备发送第一指示信息；其中，所述第一指示信息用于指示所述通信系统参数，所述通信系统参数用于接收端设备对所述Sidelink信道上承载的信息进行解码。
第四方面，本公开实施例还提供了一种接收端设备，包括：
第一确定模块，用于根据获取到的第一指示信息确定通信系统参数；和/或，根据通信系统参数的影响因素与通信系统参数之间的映射关系，确定所述通信系统参数；其中，所述通信系统参数包括Sidelink信道的子载波间隔SCS；所述通信系统参数，用于对所述Sidelink信道上承载的信息进行解码。
第五方面，本公开实施例还提供了一种网络侧设备，包括：
第二确定模块，用于根据通信系统参数的影响因素与通信系统参数的映射关系，确定通信系统参数；其中，所述通信系统参数包括所述Sidelink信 道的子载波间隔SCS；
第一发送模块，用于向接收端设备发送第一指示信息；其中，所述第一指示信息用于指示所述通信系统参数，所述通信系统参数用于接收端设备对所述Sidelink信道上承载的信息进行解码。
第六方面，本公开实施例还提供了一种发送端设备，包括：
第三确定模块，用于根据通信系统参数的影响因素与通信系统参数的映射关系，确定通信系统参数；其中，所述通信系统参数包括所述Sidelink信道的子载波间隔SCS；
第二发送模块，用于向接收端设备发送第一指示信息；其中，所述第一指示信息用于指示所述通信系统参数，所述通信系统参数用于接收端设备对所述Sidelink信道上承载的信息进行解码。
第七方面，本公开实施例还提供了一种接收端设备，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程序，所述程序被所述处理器执行时实现如上述第一方面所述的通信系统参数的确定方法的步骤。
第八方面，本公开实施例还提供了一种网络侧设备，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程序，所述程序被所述处理器执行时实现如上述第二方面所述的通信系统参数的指示方法的步骤。
第九方面，本公开实施例还提供了一种发送端设备，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程序，所述程序被所述处理器执行时实现如上述第三方面所述的通信系统参数的指示方法的步骤。
第十方面，本公开实施例提供了一种计算机可读存储介质，所述计算机可读存储介质上存储有程序，所述程序被处理器执行时实现如上述第一方面所述的通信系统参数的确定方法的步骤，或者，所述程序被处理器执行时实现如上述第二方面所述的通信系统参数的指示方法的步骤，或者，所述程序被处理器执行时实现如上述第三方面所述的通信系统参数的指示方法的步骤。
通过本公开实施例提供的通信系统参数的确定、指示方法及设备，接收端设备可以从获取到的指示通信系统参数的第一指示信息中确定通信系统参数，和/或，根据通信系统参数与的影响因素与通信系统参数的映射关系确定通信系统参数。这样，避免了接收端设备通过盲检的方式查找通信系统参数， 从而可以降低接收端设备的工作量以及解码的复杂度，提高通信效能。
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是本公开一个实施例提供的通信系统参数的确定方法的第一中流程示意图。
图2是本公开一个实施例提供的通信系统参数的确定方法中，发送端设备的绝对移动速度的速度区间的划分示意图。
图3是本公开一个实施例提供的通信系统参数的指示方法的第一种流程示意图。
图4是本公开一个实施例提供的通信系统参数的确定方法的第二种流程示意图。
图5是本公开一个实施例提供的通信系统参数的确定方法的第三种流程示意图。
图6是本公开一个实施例提供的通信系统参数的指示方法的第一种流程示意图。
图7是本公开一个实施例提供的通信系统参数的确定方法的第四种流程示意图。
图8是本公开一个实施例提供的通信系统参数的确定方法的第五种流程示意图。
图9是本公开一个实施例提供的接收端设备的模块组成示意图。
图10是本公开一个实施例提供的网络侧设备的模块组成示意图。
图11是本公开一个实施例提供的发送端设备的模块组成示意图。
图12是本公开一个实施例提供的接收端设备的结构示意图。
图13是本公开一个实施例提供的网络侧设备的结构示意图。
图14是本公开一个实施例提供的发送端设备的结构示意图。
具体实施方式
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。说明书以及权利要求中使用“和/或”表示连接对象至少其中之一。
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(Global System of Mobile communication，GSM)，码分多址(Code Division Multiple Access，CDMA)系统，宽带码分多址(Wideband Code Division Multiple Access，WCDMA)，通用分组无线业务(General Packet Radio Service，GPRS)，长期演进(Long Term Evolution，LTE)/增强长期演进(Long Term Evolution Advanced，LTE-A)，新空口(New Radio，NR)等。
用户侧设备(User Equipment，UE)，也可称之为用户端、移动终端(Mobile Terminal)、移动用户设备等，可以经无线接入网(例如，Radio Access Network，RAN)与一个或多个核心网进行通信，用户侧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，它们与无线接入网交换语言和/或数据。
网络侧设备，用于与用户侧设备通信，可以是GSM或CDMA中的基站(Base Transceiver Station，BTS)，也可以是WCDMA中的基站(NodeB)，还可以是LTE中的演进型基站(evolutional Node B，eNB或e-NodeB)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。
以下结合附图，详细说明本公开各实施例提供的技术方案。
本公开实施例涉及到的英文缩写注释如下。
旁链路的控制信息(Sidelink Control Information,SCI)；
参考信号接收功率(Reference Signal Receiving Power，RSRP)；
信号与干扰加噪声比(Signal to Interference plus Noise Ratio，SINR)；
系统广播(System Information,SI)；
无线资源控制(Radio Resource Control,RRC)；
下行控制消息(Downlink Control Information，DCI)；
带宽部分(Bandwidth Part，BWP)；
旁链路(Sidelink)；
子载波间隔(Subcarrier Spacing，SCS)；
循环前缀(Cycle Prefix，CP)。
在本公开实施例中，上述中文名词对应的英文全称、英文缩写包括但不限于以上所列举。比如，带宽部分的英文缩写包括但不限于BWP，本实施例只是列举可能的英文全称及英文缩写，不表示对英文全称及英文缩写的限定。
本公开实施例提供了一种通信系统参数的确定方法，该方法应用于接收端设备，可以由接收端设备执行，接收端设备指的是接收发送端设备发送的信息的终端设备。图1为本公开实施例提供的通信系统参数的确定方法的流程示意图，如图1所示，该方法至少包括如下步骤：
步骤102，根据获取到的第一指示信息确定通信系统参数；和/或，根据通信系统参数的影响因素与通信系统参数之间的映射关系，确定通信系统参数；
其中，上述通信系统参数包括Sidelink信道的SCS；上述通信系统参数，用于对Sidelink信道上承载的信息进行解码。
上述Sidelink信道上承载的信息指的是发送端设备通过Sidelink信道向接收端设备发送的信息。
在本公开的一个实施例中，上述通信系统参数除了包括Sidelink信道的SCS外，还可以包括Sidelink信道的CP或者Sidelink信道的带宽部分。
在上述步骤102中，至少可以通过如下三种方式确定通信系统参数：
第一种方式、根据获取到的第一指示信息确定通信系统参数；
第二种方式、根据通信系统参数的影响因素与通信系统参数之间的映射关系，确定通信系统参数；
第三种方式、根据获取到的第一指示信息，以及通信系统参数的影响因素与通信系统参数之间的映射关系，确定通信系统参数。
在本公开实施例中，通信系统参数包括对物理旁链路控制信道上承载的 信息进行解码的第一通信系统参数；和/或，对物理旁链路数据信道上承载的信息进行解码的第二通信系统参数。
具体的，在本公开实施例中，上述通信系统参数可以只包括第一通信系统参数；或者，上述通信系统参数可以只包括第二通信系统参数；或者，上述通信系统参数包括第一通信系统参数和第二通信系统参数。
上述步骤102中的Sidelink信道可以只包括物理旁链路控制信道；或者，只包括物理旁链路数据信道；或者，包括物理旁链路数据信道和物理旁链路控制信道。
因此，在本公开实施例中，若是上述Sidelink信道只包括物理旁链路控制信道，对应的，上述通信系统参数则只包括第一通信系统参数；若是上述Sidelink信道只包括物理旁链路数据信道，对应的，上述通信系统参数只包括第二通信系统参数；若是上述Sidelink信道包括物理旁链路控制信道和物理旁链路数据信道，对应的，上述通信系统参数包括第一通信系统参数和第二通信系统参数。
下述将分别详细介绍上述列举的三种确定通信系统参数的方式的具体实现过程。
第一种方式，根据获取到的第一指示信息确定通信系统参数。
在本公开实施例中，步骤102中的第一指示信息可以来源于发送端设备，也可以是来源于网络侧设备。具体的，若是上述第一指示信息指示第一通信系统参数，则从网络侧设备发送的网络侧消息中获取上述第一指示信息。
若是上述第一指示信息指示第二通信系统参数，则上述第一指示信息可以通过以下方式中的任意一种方式获取：
从网络侧设备发送的网络消息中获取；
从根据第一通信系统参数对物理旁链路控制信道上承载的SCI信息进行解码得到的信息中获取。
具体的，根据第一通信系统参数对物理旁链路控制信道上承载的SCI信息进行解码后，若是解码后的SCI信息中存在指示第二通信系统参数的第一指示信息，则从解码后的SCI信息中获取指示第二通信系统参数的第一指示信息，并根据该第一指示信息确定第二通信系统参数，然后使用第二通信系 统参数对物理旁链路数据信道上承载的信息进行解码；若是解码后的SCI信息中不存在指示第二通信系统参数的第一指示信息，则可以根据第一通信系统参数对物理旁链路数据信道进行解码。
在本公开实施例中，网络侧设备将指示通信系统参数的第一指示信息携带在网络消息中，发送给接收端设备。因此，接收端设备需要从网络侧设备发送的网络消息中获取第一指示信息。
其中，网络侧设备发送的网络消息包括以下消息中的任意一种：
SI消息、RRC消息以及DCI消息。
上述只是列举了网络消息的三种可能的具体类型，除此之外，网络消息还可以是其它类型的消息，此处只是示例性说明，并不构成对网络消息的具体类型的限定。
具体的，若是上述网络侧设备发送的消息为SI消息，则指示通信系统参数的第一指示信息携带在SI消息中，接收端设备需要从接收到的SI消息中获取第一指示信息；若是指示通信系统参数的信息携带在RRC消息中，接收端设备需要从接收到的RRC消息中获取第一指示信息；若是指示通信系统参数的信息携带在DCI信息中，接收端设备需要从接收到的DCI消息中获取第一指示信息。
在本公开实施例中，上述第一指示信息中携带的可以是通信系统参数的标识，通过通信系统参数的标识指示通信系统参数。具体的，通信系统参数的标识可以是通信系统参数对应的比特位，可以配置不同的比特位对应不同的通信系统参数。为便于理解，下述将举例进行说明。
例如，上述通信系统参数为SCS，可以配置比特位1表示SCS为15kHz，配置比特位0表示SCS为30kHz。在该种情况下，若是接收端设备获取到的第一指示信息中携带的比特位为0，则可以确定Sidelink信道的SCS为30kHz，若是获取到的第一指示信息中携带的比特位为1，则可以确定Sidelink信道的SCS为15kHz。
另外，发送端设备与接收端设备之间通过Sidelink信道传输信息时，既可以在低频段上传输信息，也可以在高频段上传输信息。例如，在低频段下，Sidelink信道的SCS可以为15kHz和30kHz，而在高频段上，Sidelink信道的 SCS可以为60kHz和120kHz。例如，针对Sidelink信道的SCS，在低频段上，可以配置0表示SCS为15kHz，配置1表示SCS为30kHz；在高频段上，可以配置0表示SCS为60kHz，可以配置1表示SCS为120kHz。这样，当接收端设备接收到发送端设备发送的信息后，若判断出该信息是在低频段上传输的，且获取到的第一指示信息中携带的比特位为0，则可以确定Sidelink信道的SCS为15kHz，这时，可以使用15kHz对Sidelink信道上承载的信息进行解码。
在本公开实施例中，由于第一指示信息是由网络侧设备或者发送端设备发送给接收端设备的，因此，上述第一指示信息中各个比特位所表示的SCS也是由网络侧设备或者发送端设备配置的。
在本公开实施例中，若是上述Sidelink信道只包括物理旁链路控制信道，则上述第一指示信息指示第一通信系统参数，则按照指示第一通信系统参数时，第一指示信息的获取方式获取第一指示信息即可；
若是上述Sidelink信道只包括物理旁链路数据信道，则上述第一指示信息指示第二通信系统参数，则按照指示第二通信系统参数时，第一指示信息的获取方式获取第一指示信息即可；
若是上述Sidelink信道包括物理旁链路控制信道和物理旁链路数据信道，则上述第一指示信息既需要指示第一通信系统参数，还需要指示第二通信系统参数，在该种情况下上述第一指示信息的获取方式至少包括如下几种：
第一、指示第一通信系统参数的第一指示信息和指示第二通信系统参数的第一指示信息均从网络侧设备发送的网络消息中获取。
为便于理解，下述将通过具体实施例进行说明。
在一种具体实施方式中，网络侧设备周期性或者非周期性检测影响通信系统参数的各个影响因素，并根据检测到的影响因素，以及影响因素与通信系统参数之间的映射关系，确定出第一通信系统参数和第二通信系统参数，并在当第一通信系统参数和第二通信系统参数发生变化时，将指示第一通信系统参数和第二通信系统参数的第一指示信息携带在网络消息中，并向接收端设备发送该网络消息。当接收端设备接收到网络侧设备发送的网络消息后，从该网络消息中获取第一指示信息，并根据该第一指示信息确定第一通信系 统参数和第二通信系统参数；然后，接收端设备使用第一通信系统参数对物理旁链路控制信道上承载的信息进行解码，使用第二通信系统参数对物理旁链路数据信道上承载的信息进行解码。
在一种具体实施方式中，若是上述第一指示信息指示第一通信系统参数和第二通信系统参数，则在上述第一指示信息中可以携带两个比特位，第一个比特位指示第一通信系统参数，第二个比特位指示第二通信系统参数；或者，还可以是两个比特位一起共同指示第一通信系统参数和第二通信系统参数。例如，针对SCS，在低频段上，可以配置00表示物理旁链路控制信道的SCS和物理旁链路数据信道的SCS均为15kHz；可以配置01表示物理旁链路控制信道的SCS为15kHz，物理旁链路数据信道的SCS为30kHz等等；在高频段上，可以配置00表示物理旁链路控制信道的SCS和物理旁链路数据信道的SCS均为60kHz，可以配置01表示物理旁链路控制信道的SCS为60kHz，物理旁链路数据信道的SCS为120kHz等等。当接收端设备接收到发送端设备通过Sidelink信道发送的信息后，若判断出该信息是在低频段上传输时，且获取到的第一指示信息中携带的比特位为01，则可以确定物理旁链路控制信道的SCS为15kHz，物理旁链路数据信道的SCS为30kHz，然后使用15kHz对物理旁链路控制信道上承载的信息进行解码，使用30kHz对物理旁链路数据信道上承载的信息进行解码。
当然，在上述只是列举了指示第一通信系统参数和第二通信系统参数的第一指示信息的一种具体配置方式，在该种情况下，第一指示信息的具体配置方式还可以是其它形式，并不局限于此。
第二，指示第一通信系统参数的第一指示信息从网络侧设备发送的网络消息中获取，指示第二通信系统参数的第一指示信息从根据第一通信系统参数对物理旁链路控制信道上承载的SCI信息进行解码后的信息中获取。
为便于理解，下述将通过具体实施例进行说明。
在一种具体实施方式中，网络侧设备将指示第一通信系统参数的第一指示信息携带在网络消息中，并向接收端设备发送该网络消息；发送端设备将指示第二通信系统参数的第一指示信息携带在SCI消息中，然后通过物理副链路控制信道向接收端设备发送；接收端设备接收到网络侧设备发送的网络 消息后，从该网络消息中获取指示第一通信系统参数的第一指示信息，根据该第一指示信息确定第一通信系统参数，然后，接收端设备使用第一通信系统参数对物理旁链路控制信道上承载的信息进行解码。由于在物理旁链路控制信道上承载有SCI信息，因此，在使用第一通信系统参数对物理旁链路控制信道上承载的信息进行解码的过程中，也对SCI信息进行了解码，从解码后的SCI信息中获取指示第二通信系统参数的第一指示信息，然后根据该第一指示信息确定第二通信系统参数，并使用第二通信系统参数，对物理旁链路数据信道上承载的信息进行解码。
具体的，在上述实施方式中，SCI信息中可能携带有指示第二通信系统参数的第一指示信息，也可能没有携带指示第二通信系统参数的第一指示信息。若是解码后的SCI信息中不存在指示第二通信系统参数的第一指示信息，这时，接收端设备直接使用第一通信系统参数对物理旁链路数据信道上承载的信息进行解码。
为便于理解，下述将举例进行说明。
当发送端设备的通信系统参数发生变化时，网络侧设备向接收端设备发送网络消息，该网络消息中携带指示第一通信系统参数的第一指示信息，发送端设备向接收端设备发送SCI信息。如，针对SCS，当发送端设备通过Sidelink信道发送给接收端设备的信息在低频段上传输时，网络侧设备可以配置0表示的SCS为15kHz，配置1表示的SCS为30kHz；发送端设备通过Sidelink信道发送给接收端设备的信息在高频段上传输时，网络侧设备可以配置0表示的SCS为60kHz，可以配置1表示的SCS为120kHz。发送端设备通过Sidelink信道发送给接收端设备的信息在低频段上传输时，发送端设备可以配置0表示的SCS为15kHz，配置1表示的SCS为30kHz；发送端设备通过Sidelink信道发送给接收端设备的信息在高频段上传输时，网络侧设备可以配置0表示的SCS为60kHz，可以配置1表示的SCS为120kHz。
这样，在接收端设备接收到发送端设备通过Sidelink信道发送的信息后，若是判断出该信息是在低频段上传输，且从网络消息中获取到的第一指示信息中携带的比特位为0，则接收端设备用使用15kHz对物理旁链路控制信道上承载的信息进行解码；然后从解码后的SCI信息中，获取SCI信息中携带 的第一指示信息，若是从SCI信息中获取到了第一指示信息，且该第一指示信息中携带的比特位为1，则接收端设备使用30kHz对物理旁链路数据信道上承载的信息进行解码。
若是，在上述SCI信息中没有获取到第一指示信息，这时，则接收端设备使用15kHz对物理旁链路数据信道上承载的信息进行解码。
在本公开实施例中，可以在SCI信息中携带第一指示信息，也可以不在SCI信息中携带第一指示信息，若是不在SCI信息中携带第一指示信息，然后接收端设备直接使用第一通信系统参数对物理旁链路数据信道上承载的信息进行解码，这样可以减少物理旁链路控制信道上传输的信息的信息量，从而可以节省资源。
第二种方式，接收端设备根据通信系统参数的影响因素与通信系统参数之间的映射关系，确定通信系统参数。
在该种实施方式中，接收端设备可以检测通信系统参数的各个影响因素，然后，根据各个影响因素与通信系统参数的映射关系确定通信系统参数。
在该种方式中，根据通信系统参数的影响因素与通信系统参数之间的映射关系，确定通信系统参数，可以有多种具体实现方式，下述将详细介绍其中两种具体实现方式。
在一种具体实施方式中，根据通信系统参数的影响因素与通信系统参数之间的映射关系，确定通信系统参数，可以包括如下步骤(1)和步骤(2)：
步骤(1)、根据通信系统参数的影响因素与带宽部分的第一映射关系，确定Sidelink信道的带宽部分；
步骤(2)、根据Sidelink信道的带宽部分与SCS的第二映射关系，确定Sidelink信道的SCS。
若是，上述通信系统参数还包括Sidelink信道的CP，当确定出Sidelink信道的SCS后，可以根据Sidelink信道的SCS确定出Sidelink信道的CP。
其中，上述影响因素包括以下中的至少一种：
发送端设备的绝对移动速度、接收端设备的绝对移动速度、发送端设备和接收端设备之间的相对移动速度、接收端设备当前正在处理的业务的相关参数以及Sidelink信道状态测量值。
其中，上述发送端设备和接收端设备之间的相对移动速度包括如下两种情况：发送端设备相对接收端设备的相对移动速度，以及，接收端设备相对发送端设备的相对移动速度。
具体的，在本公开实施例中，上述影响因素可以为发送端设备的绝对移动速度、接收端设备的绝对移动速度、发送端设备和接收端设备之间的相对移动速度、接收端设备当前正在处理的业务的相关参数以及Sidelink信道状态测量值中的一种或者多种的组合。
其中，上述业务相关参数包括以下中的至少一种：
业务的优先级等级、业务的延时要求、业务的可靠性值、业务的吞吐量需求值、业务占用的带宽；
上述Sidelink信道状态测量值包括以下中的至少一种：
频偏值、RSRP值、SINR值。
在本公开实施例中，上述业务相关参数可以包括业务的优先等级、业务的延时要求、业务的可靠性值、业务的吞吐量需求值以及业务占用的带宽中的一种或者多种的组合；同样的，上述Sidelink信道状态测量值可以包括频偏值、RSRP值和SINR值中的一种或者多种的组合。
为便于理解，下述将分别介绍根据各个影响因素与带宽部分的第一映射关系，确定Sidelink信道的带宽部分的具体过程。
若是上述影响因素为发送端设备的绝对移动速度，可以确定发送端设备的绝对移动速度可能的取值范围，并将取值范围划分为若干个区间，然后建立每个区间与带宽部分的第一映射关系，在本实施例中，可以将发送端设备的绝对移动速度记为V。具体的，当发送端设备的绝对移动速度在变化时，尤其是在两个区间的临界点附近变化时，为了防止发送端设备的绝对移动速度在临界点附近频繁切换，从而导致对应的带宽部分频繁切换，从而增加接收端设备工作的复杂度和功耗的情况的发生。在本公开实施例中，可以在每个区间之间设置缓冲间隔，具体的，可以将该缓冲间隔记为θ。这样，发送端设备的绝对移动速度划分的多个区间可以为[V 1,V 2]、[V 2+θ，V 3]、[V 3+θ，V 4]…[V N+θ，V N+1]，相应的，[V 1,V 2]对应的带宽部分为BWP 0-BWP N，[V 2+θ，V 3]对应的带宽部分为BWP N+1-BWP M，[V 3+θ，V 4]对应的带宽部分为 BWP M+1-BWP K，[V N+θ，V N+1]对应的带宽部分为BWP X-BWP Y，当发送端设备的绝对移动速度大于V N+1时，发送端设备的绝对移动速度对应的带宽部分为仍为BWP X-BWP Y。在本公开实施例中，当检测到发送端设备的绝对移动速度位于区间[V 2+θ，V 3]时，根据上述第一映射关系可以确定出Sidelink信道的带宽部分为BWP N+1-BWP M；当检测到发送端设备的绝对移动速度位于区间[V 3+θ，V 4]时，根据上述第一映射关系可以确定Sidelink信道的带宽部分为BWP M+1-BWP K。
其中，上述出现的符号N、M、K、X和Y均为正整数。
为了便于理解，下述将结合图2所示的发送端设备的绝对移动速度的划分区间示意图为例，介绍如何根据上述第一映射关系以及检测到的发送端设备的绝对移动速度，确定Sidelink信道的带宽部分。
在图2中，当发送端设备的绝对移动速度在V 2附近不断变化时，若是检测到发送端设备的绝对移动速度小于V 2+θ，则Sidelink信道的带宽部分仍然为区间[V 1,V 2]对应的带宽部分，若是检测到发送端设备的绝对移动速度大于V 2+θ时，则Sidelink信道的带宽部分则为区间[V 2+θ，V 3]对应的带宽部分。例如，若是区间[V 1,V 2]对应的带宽部分为BWP 1，区间[V 2+θ，V 3]对应的带宽部分为BWP 20，若是发送端设备的绝对移动速度已经超过V 2，但是小于V 2+θ，则Sidelink信道的带宽部分为BWP 1，若是发送端设备的绝对移动速度大于V 2+θ，则发Sidelink信道的带宽部分为BWP 20。
当然，在图2中只是画出了[V 1,V 2]、[V 2+θ，V 3]两个区间，但是实际划分的区间的个数可以为其他数值，并不局限于此，图2只是示例性说明。
另外，在本公开实施例中，各个速度区间上设置的缓冲间隔可以相同，也可以不同。
上述介绍的是如何根据发送端设备的绝对移动速度，以及发送端设备的绝对移动速度与带宽部分的第一映射关系确定Sidelink信道的带宽部分；针对接收端设备的绝对移动速度、发送端设备相对接收端设备的相对移动速度以及接收端设备相对发送端设备的相对移动速度的情况，可以参考上述实施例，此处不再赘述。
若是上述通信系统参数的影响因素为接收端设备正在处理的业务的业务 优先级，可以将业务优先级划分为P 1，P 2，P 3，……，P N个优先等级，上述N个优先等级依次对应的带宽部分分别为BWP 0-BWP N，BWP N+1-BWP M，BWP M+1-BWP V，…，BWP W-BWP Q。其中，上述N、M、V、W以及Q的取值均为正整数。当接收端设备检测到当前正在处理的业务的优先等级后，则根据优先等级与带宽部分的第一映射关系，确定该优先等级对应的带宽部分，将确定出的带宽部分确定为Sidelink信道的带宽部分。
若是上述通信系统参数的影响因素为接收端设备正在处理的业务的业务延时要求，将业务可能出现的延时要求的取值范围划分为如下区间[t 0-t 1]，[t 1-t 2]，[t 2-t 3]，…，[t n-t n+1]，上述各个区间依次对应的带宽部分为BWP 0-BWP N，BWP N+1-BWP M，BWP M+1-BWP V，…，BWP W-BWP Q。另外，当业务的延时要求的取值高于t n+1时，将该业务的延时要求对应的带宽部分确定为BWP X-BWP Y。其中，上述N、M、V、W、Q、X及Y的取值均为正整数。若是接收端设备检测到当前正在处理的业务的延时要求为T，确定该延时要求T所在的延时要求区间，然后将该延时要求区间对应的带宽部分确定为Sidelink信道的带宽部分。
若是上述通信系统参数的影响因素为接收端设备正在处理的业务的业务可靠性，一般的，业务可靠性指的是业务要求误码率或者误块率，可以将业务要求的误码率或者误块率划分为如下多个区间：低于B 1、[B 1,B 2]、[B 2，B 3,]、…、[B N-1，B N]，上述各个区间依次对应的带宽部分为BWP 0-BWP K，BWP K+1-BWP M，BWP M+1-BWP V，…，BWP W-BWP Q。另外，当业务的误码率或者误块率高于B N时，则将该误码率或者误块率对应的带宽部分确定为BWP X-BWP Y。其中，上述N、M、V、W、Q、X及Y的取值均为正整数。若是接收端设备检测到当前正在处理的业务的业务要求误码率或者误块率后，确定当前检测到的误码率或者误块率所在的区间，然后将该区间对应的带宽部分确定为Sidelink信道的带宽部分。
若是上述通信系统参数的影响因素为接收端设备正在处理的业务的吞吐量需求，可以将业务的吞吐量需求可能的取值范围划分为如下多个区间：[T 0-T 1]，[T 1-T 2]，[T 2-T 3]，…，[T n-T n+1]，上述各个区间依次对应的带宽部分为：BWP 0-BWP N，BWP N+1-BWP M，BWP M+1-BWP V，…，BWP W-BWP Q。另 外，若是业务的吞吐量需求高于T n+1，则将该吞吐量需求对应的带宽部分确定为BWP X-BWP Y。其中，上述N、M、V、W、Q、X及Y的取值均为正整数。若接收端设备检测到当前正在处理的业务的吞吐量需求为T，则首先确定T所对应的区间，然后将该区间对应的带宽部分确定为Sidelink信道的带宽部分。
若是上述通信系统参数的影响因素为接收端设备正在处理的业务的业务占用带宽，可以将业务占用带宽的可能取值范围划分为如下多个区间：[B 0-B 1]，[B 1-B 2]，[B 2-B 3]，…，[B n-B n+1]，上述各个带宽区间依次对应的带宽部分为:BWP 0-BWP N，BWP N+1-BWP M，BWP M+1-BWP V，…，BWP W-BWP Q。另外，若是业务占用的带宽高于B n+1时，则将该带宽对应的带宽部分确定为BWP X-BWP Y。其中，上述N、M、V、W、Q、X及Y的取值均为正整数。当接收端设备检测到当前正在处理的业务占用的带宽后，确定当前正在处理的业务占用的带宽对应的区间，将该带宽区间对应的带宽部分确定为Sidelink信道的带宽部分。
若是上述通信系统参数的影响因素为Sidelink信道的RSRP值，可将Sidelink信道的RSRP值的可能取值范围划分为如下多个区间：[R 0-R 1]，[R 1-R 2]，[R 2-R 3]，…，[R n-R n+1]，上述多个区间依次对应的带宽部分为BWP 0-BWP N，BWP N+1-BWP M，BWP M+1-BWP V，…，BWP W-BWP Q。另外，若是Sidelink信道的RSRP值高于R n+1，则将该RSRP值对应的带宽部分确定为BWP X-BWP Y。其中，上述N、M、V、W、Q、X及Y的取值均为正整数。当接收端设备检测到当前Sidelink信道的RSRP值后，确定当前检测到的RSRP值对应的RSRP区间，将该RSRP区间对应的带宽部分确定为Sidelink信道的带宽部分。
若是上述通信系统参数的影响因素为Sidelink信道的SINR值，可将Sidelink信道的SINR值的可能取值范围划分为如下多个区间：[S 0-S 1]，[S 1-S 2]，[S 2-S 3]，…，[S n-S n+1]，上述各个区间依次对应的带宽部分为BWP 0-BWP N，BWP N+1-BWP M，BWP M+1-BWP V，…，BWP W-BWP Q。另外，当前Sidelink信道的SINR值高于S n+1时，则将该SINR值对应的带宽部分确定为BWP X-BWP Y。其中，上述N、M、V、W、Q、X及Y的取值均为正整数。当接收端设备检测到当前Sidelink信道的SINR值后，确定当前检测到的SINR值对应的SINR 区间，将该SINR区间对应的带宽部分确定为Sidelink信道的带宽部分。
若是上述通信系统参数的影响因素为Sidelink信道的频偏值F，可将Sidelink信道的频偏值的可能取值范围划分为如下多个频偏值区间：[F 0-F 1]，[F 1-F 2]，[F 2-F 3]，…，[F n-F n+1]，上述各个频偏值区间依次对应的带宽部分为BWP 0-BWP N，BWP N+1-BWP M，BWP M+1-BWP V，…，BWP W-BWP Q。另外，若是Sidelink信道的频偏值高于F n+1，则将该频偏值对应的带宽部分确定为BWP X-BWP Y。当接收端设备检测到Sidelink信道的频偏值后，确定当前检测到的频偏值对应的频偏值区间，将该频偏值区间对应的带宽部分确定为Sidelink信道的带宽部分。
上述列举了根据各个影响因素，以及该影响因素与带宽部分的第一映射关系确定Sidelink信道的带宽部分的具体实现过程。当通过上述过程确定出Sidelink信道的带宽部分后，执行上述步骤(2)，根据Sidelink信道的带宽部分与SCS的第二映射关系，确定Sidelink信道的SCS。
为便于理解，下述将以根据发送端设备的绝对移动速度为例，介绍上述Sidelink信道的SCS的确定过程。
例如，针对发送端设备的绝对移动速度，速度区间[0,5]对应的带宽部分为BWP 0-BWP 5，该带宽部分所使用的SCS为15kHz，速度区间[5+3,20]对应的带宽部分为BWP 6-BWP 15，该带宽部分所使用的SCS为15kHz；速度区间[20+5，50]对应的带宽部分为BWP 16-BWP 30，该带宽部分所使用的SCS为30kHz；速度区间[50+10，90]对应的带宽部分为BWP 31-BWP 45，该带宽部分所使用的SCS可以为60kHz；速度区间[90+15，150]对应的带宽部分为BWP 46-BWP 60，该带宽部分所使用的SCS可以为60kHz；其中，上述各个速度区间中发送端设备的绝对移动速度的单位均km/h。当发送端设备的绝对移动速度大于150km/h时，对应的带宽部分为BWP 61-BWP 75，该带宽部分所使用的SCS可以为120kHz。
当接收端设备需要确定Sidelink信道的通信系统参数时，首先检测发送端设备当前的绝对移动速度；然后，确定发送端设备当前的绝对移动速度所在的速度区间；然后将该速度区间对应的带宽部分确定为Sidelink信道的带宽部分；最后，将该Sidelink信道的带宽部分所使用的SCS确定为Sidelink 信道的SCS。
例如，在一种具体实施方式中，当前检测到发送端设备的绝对移动速度为10km/h，则发送端设备当前的绝对移动速度落在速度区间[5+3,20]内，而速度区间[5+3,20]对应的带宽部分为BWP 6-BWP 15，因此，可以确定出在该种情况下，Sidelink信道对应的带宽部分为BWP 6-BWP 15；而带宽部分BWP 6-BWP 15所使用的SCS为15kHz，因此，可以确定出Sidelink信道的SCS为15kHz。
上述则详细介绍了通过一种影响因素确定Sidelink信道的通信系统参数的具体实现过程。除此之外，还可以根据两种或者多种影响因素相结合确定Sidelink信道的通信系统参数。例如，可以根据发送端设备的绝对移动速度以及接收端设备当前正在处理的业务的优先等级两种影响因素一起确定Sidelink信道的通信系统参数；或者，还可以根据接收端设备当前正在处理的业务的优先等级以及业务的延时要求两个影响因素确定Sidelink信道的通信系统参数。当然，还可以是其他两种或者多种影响因素相结合，此处只是示例性说明，影响因素的组合形式并不局限于此。
在本公开实施例中，若是根据两种或者多种影响因素相结合的方式确定Sidelink信道的通信系统参数，则在上述步骤(1)中确定Sidelink信道的带宽部分的过程，可以将相结合的各个影响因素的权重考虑在内。尤其是，在不同的影响因素对应的带宽部分不相同时，则将权重较大的影响因素对应的带宽部分确定为Sidelink信道的带宽部分。
为便于理解，下述将以根据接收端设备正在处理的业务的优先级等级以及业务的延时要求两个影响因素相结合为例，举例说明如何根据两个影响因素确定Sidelink信道的SCS。假设业务的优先等级的权重为A，业务的延时要求的权重为B。
例如，针对业务的优先级而言，业务优先级P 1对应的带宽部分为BWP 0-BWP 5，该带宽部分所使用的SCS为15kHz；业务优先级P 2对应的带宽部分为BWP 6-BWP 15，该带宽部分所使用的SCS为15kHz；业务优先级P 3对应的带宽部分为BWP 16-BWP 30，该带宽部分所使用的SCS为30kHz；
针对业务的延时要求而言，延时要求区间[0，10]对应的带宽部分为 BWP 16-BWP 30，该带宽部分所使用的SCS为30kHz；延时要求区间[10，30]对应的带宽部分为BWP 6-BWP 15，该带宽部分所使用的SCS为15kHz；延时要求区间[30，100]对应的带宽部分为BWP 0-BWP 5，该带宽部分所使用的SCS为15kHz；其中，此处延时要求区间中各个延时要求的单位为毫秒。
假设接收端设备检测到其当前正在处理的业务的优先级为P 3，业务的延时要求要求位于区间[0,10]内，上述两种影响因素所对应的带宽部分均为BWP 16-BWP 30，这时，可以确定Sidelink信道的带宽部分则为BWP 16-BWP 30；但是，假设接收端设备检测到当前正在处理的业务的优先级为P 2，业务的延时要求位于区间[0,10]内，针对业务的优先级而言，P 2对应的带宽部分为BWP 6-BWP 15，针对业务的延时要求而言，区间[0,10]对应的带宽部分为BWP 16-BWP 30，两种影响因素对应的带宽部分不相同，这时，则需要根据两种影响因素分别对应的权重确定Sidelink信道的带宽部分。若是业务的优先级的权重A大于或等于业务的延时要求的权重B，则确定Sidelink信道的带宽部分为BWP 6-BWP 15，将带宽部分BWP 6-BWP 15所使用的SCS15kHz确定为Sidelink信道的SCS；若是业务的优先级的权重A小于业务的延时要求的权重，则确定Sidelink信道的带宽部分为BWP 16-BWP 30，将带宽部分BWP 16-BWP 30所使用的SCS30kHz确定为Sidelink信道的SCS。
上述具体介绍了根据通信系统参数的影响因素与通信系统参数的映射关系确定通信系统参数的具体实现过程，除此之外，还可以直接建立各个影响因素与SCS之间的映射关系，然后，接收端设备根据检测到的影响因素，以及上述映射关系确定SCS。
当然，本公开实施例只是介绍了确定通信系统参数的两种具体实现过程，而根据通信系统参数的影响因素与通信系统参数的映射关系确定通信系统参数的具体实现方式并不局限于此。
第三种方式，根据获取到的第一指示信息以及通信系统参数的影响因素与通信系统参数之间的映射关系，确定通信系统参数。
在本公开实施例中，当上述Sidelink信道包括物理旁链路控制信道和物理旁链路数据信道时，对应的，通信系统参数包括第一通信系统参数和第二通信系统参数。因此，可以根据获取到的第一指示信息确定第一通信系统参 数，根据通信系统参数的影响因素与通信系统参数之间的映射关系，确定第二通信系统参数；或者，根据获取到的第一指示信息确定第二通信系统参数，根据通信系统参数的影响因素与通信系统参数之间的映射关系确定第一通信系统参数。
具体的，在该种方式中，上述通信系统参数的获取方法，至少包括如下几种情况：
第一，从网络侧设备发送的网络消息中获取第一指示信息，根据该第一指示信息确定第一通信系统参数；根据接收端设备当前检测到的影响因素，以及通信系统参数的影响因素与通信系统参数之间的映射关系，确定第二通信系统参数；
第二，从网络侧设备发送的网络消息中获取第一指示信息，根据该第一指示信息确定第二通信系统参数；根据接收端设备当前检测到的影响因素，以及通信系统参数的影响因素与通信系统参数之间的映射关系，确定第二通信系统参数；
第三，根据接收端设备当前检测到的影响因素，以及通信系统参数的影响因素与通信系统参数之间的映射关系，确定第一通信系统参数；使用第一通信系统参数对接收到的发送端设备通过物理旁链路控制信道发送的SCI消息进行解码，从解码后的SCI信息中获取第一指示信息，然后根据该第一指示信息确定第二通信系统参数。
本公开实施例提供的通信系统参数的确定方法中，接收端设备可以根据获取到的第一指示信息确定通信系统参数；和/或，根据通信系统参数的影响因素与通信系统参数之间的映射关系确定通信系统参数；这样，避免了接收端设备通过盲检的方式查找通信系统参数，从而可以降低接收端设备的工作量以及解码的复杂度，提高通信效能。
与上述实施例相对应，本公开一个实施例还提供了一种通信系统参数的指示方法，应用于网络侧设备，在本公开实施例中，与上述通信系统参数的确定方法实施例相同的部分的详细描述可参考上述实施例的内容，本实施例不再重复。图3为本公开实施例提供的通信系统参数的指示方法的第一种流 程示意图，图3所示的方法，至少包括步骤302至304。
步骤302，根据通信系统参数的影响因素与通信系统参数的映射关系，确定通信系统参数；其中，上述通信系统参数包括Sidelink信道的SCS。
具体的，在步骤302中，根据通信系统参数的影响因素与通信系统参数的映射关系，确定通信系统参数，可以包括如下步骤1、步骤2和步骤3：
步骤1、获取通信系统参数的影响因素；
步骤2、根据上述影响因素与Sidelink信道的带宽部分的第一映射关系，确定Sidelink信道的带宽部分；
步骤3、根据Sidelink信道的带宽部分与SCS的第二映射关系，确定Sidelink信道的SCS。
在本公开实施例中，网络侧设备可以按照设定周期或者随机检测通信系统参数的影响因素，然后，根据检测到的影响因素的参数值，以及通信系统参数的影响因素与通信系统参数的映射关系，确定通信系统参数。
具体的，上述影响因素包括以下中的至少一种：
发送端设备的绝对移动速度、接收端设备的绝对移动速度、发送端设备和接收端设备之间的相对移动速度、Sidelink信道当前传输的业务的相关参数以及Sidelink信道状态测量值。
其中，上述发送端设备和接收端设备之间的相对移动速度，包括如下两种情况：发送端设备相对接收端设备的相对移动速度、接收端设备相对发送端设备的相对移动速度。
具体的，在本公开实施例中，上述通信系统参数的影响因素可以包括发送端设备的绝对移动速度、接收端设备的绝对移动速度、发送端设备和接收端设备之间的相对移动速度、Sidelink信道当前传输的业务的相关参数以及Sidelink信道状态测量值中的一种或者多种。
在本公开实施例中，上述业务的相关参数包括以下中的至少一种：
业务的优先级等级、业务的延时要求、业务的可靠性、业务的吞吐量需求值、业务占用的带宽；
上述Sidelink信道状态测量值包括以下中的至少一种：
频偏值、RSRP值、SINR值。
其中，在本公开实施例中，业务的相关参数可以包括业务的优先等级、业务的延时要求、业务的可靠性、业务的吞吐量需求值以及业务占用的带宽中的一种或者多种组合；上述Sidelink信道状态测量值可以包括频偏值、RSRP值以及SINR值中的一种或者多种。
由于在上述通信系统参数的确定方法实施例中已经详细介绍如何根据通信系统参数的影响因素与通信系统参数之间的映射关系确定通信系统参数，具体过程可以参考上述实施例，此处不再赘述确定通信系统参数的具体过程。
另外，在上述步骤302中，上述通信系统参数除了Sidelink信道的SCS外，还可以包括Sidelink信道的CP或者Sidelink信道的带宽部分。
在本公开实施例中，上述通信系统参数包括对物理旁链路控制信道上承载的信息进行解码的第一通信系统参数；和/或，对物理旁链路数据信道上承载的信息进行解码的第二通信系统参数。
在本公开实施例中，Sidelink信道可以只包括物理旁链路控制信道；或者，可以只包括物理旁链路数据信道；或者同时包括物理旁链路控制信道和物理旁链路数据信道。
因此，在本公开实施例中，若是上述Sidelink信道只包括物理旁链路控制信道，对应的，上述通信系统参数只包括第一通信系统参数；若是上述Sidelink信道只包括物理旁链路数据信道，对应的，上述通信系统参数只包括第二通信系统参数；若是上述Sidelink信道包括物理旁链路控制信道和物理旁链路数据信道，对应的，上述通信系统参数包括第一通信系统参数和第二通信系统参数。
步骤304,向接收端设备发送第一指示信息；其中，上述第一指示信息用于指示通信系统参数；该通信系统参数用于接收端设备对Sidelink信道上承载的信息进行解码。
具体的，在步骤304中，向接收端设备发送第一指示信息，可以包括：
向接收端设备发送网络消息，该网络消息中携带有第一指示信息；
其中，上述网络消息包括以下消息中的一种：SI消息、RRC消息,或DCI消息。
上述第一指示信息可以携带在SI消息中发送给接收端设备、或者可以携 带在RRC消息中发送给接收端设备，还或者，可以携带在DCI消息中发送给接收端设备。
当然，上述只是列举了三种网络消息的具体类型，网络消息的类型还可以是其他消息类型，上述只是示例性说明，网络消息的具体类型并不局限于此。
在本公开实施例中，若是上述Sidelink信道包括物理旁链路控制信道和物理旁链路数据信道，通信系统参数的确定方法至少包括如下几种情形，下述将通过具体实施例进行说明。
图4为本公开实施例提供的通信系统参数的确定方法的第二种流程示意图，图4所示的方法，至少包括如下步骤：
步骤402,网络侧设备检测通信系统参数的影响因素的参数值；
步骤404,网络侧设备根据上述参数值，以及通信系统参数的影响因素与通信系统参数的映射关系，确定第一通信系统参数和第二通信系统参数；
步骤406,网路侧设备向接收端设备发送网络消息，该网络消息中携带有第一指示信息，该第一指示信息指示第一通信系统参数和第二通信系统参数；
步骤408，接收端设备接收到网路侧设备发送的网络消息后，从网络消息中获取第一指示信息；
步骤410，接收端设备根据上述第一指示信息确定第一通信系统参数和第二通信系统参数。
当接收端设备确定出第一通信系统参数和第二通信系统参数后，则使用第一通信系统参数对物理旁链路控制信道承载的信息进行解码，使用第二通信系统参数对物理旁链路数据信道承载的信息进行解码。
图5为本公开实施例提供的通信系统参数的确定方法第三种流程示意图，图5所示的方法，至少包括如下步骤：
步骤502，网络侧设备检测通信系统参数的影响因素的参数值；
步骤504，网络侧设备根据影响因素的参数值，以及通信系统参数的影响因素与通信系统参数之间的映射关系，确定第一通信系统参数；
步骤506,网络侧设备向接收端设备发送网络消息，该网络消息中携带有第一指示信息，该第一指示信息用于指示第一通信系统参数；
步骤508,接收端设备检测通信系统参数的影响因素的参数值；
步骤510，接收端设备根据影响因素的参数值，以及通信系统参数的影响因素与通信系统参数之间的映射关系，确定第二通信系统参数；
步骤512，接收端设备接收到网络侧设备发送的网络消息后，从该网络消息中获取第一指示信息；
步骤514，接收端设备根据上述第一指示信息确定第一通信系统参数。
其中，在本实施例中，上述确定第一通信系统参数和确定第二通信系统参数的执行步骤可以同时执行，也可以存在先后顺序，本公开实施例并不对上述确定第一通信系统参数和确定第二通信系统参数的顺序进行限定。
当接收端设备确定出第一通信系统参数和第二通信系统参数后，则使用第一通信系统参数对物理旁链路控制信道承载的信息进行解码，使用第二通信系统参数对物理旁链路数据信道承载的信息进行解码。
当然，除此之外，还可以是接收端设备根据通信系统参数的影响因素与通信系统参数的映射关系确定第一通信系统参数，根据从网络消息中获取的第一指示信息确定第二通信系统参数。
本公开实施例的具体实施过程可以参考前述实施例的描述，这里不再重复。
通过本公开实施例提供的通信系统参数的指示方法，可以根据通信系统参数的影响因素与通信系统参数之间的映射关系确定出通信系统参数，并将指示Sidelink信道的通信系统参数的第一指示信息发送给接收端设备，这样，接收端设备可以直接根据该第一指示信息确定出对Sidelink信道上承载的信息进行解码的通信系统参数。避免了通过盲检的方式确定通信系统参数，降低了接收端设备的工作量以及解码的复杂度，提高了通信效能。
与上述实施例相对应，本公开一个实施例还提供了一种通信系统参数的指示方法，应用于发送端设备，该发送端设备指的是通过Sidelink信道发送信息的终端设备。在本公开实施例中，与上述通信系统参数的确定方法实施例相同的部分的详细描述可参考上述实施例的内容，本实施例不再重复。图6为本公开实施例提供的通信系统参数的指示方法的第二种流程示意图，图6 所示的方法，至少包括步骤602至604。
步骤602,确定通信系统参数；其中，该通信系统参数根据获取到的第二指示信息确定；和/或，根据通信系统参数的影响因素与通信系统参数的映射关系确定；其中，通信系统参数包括Sidelink信道的SCS。
其中，上述通信系统参数除了Sidelink信道的SCS外，还可以包括Sidelink信道的CP或者Sidelink信道的带宽部分。
在本公开实施例中，上步骤602中确定通信系统参数，至少包括如下三种情况：
第一、根据获取到的第二指示信息确定通信系统参数；
第二、根据通信系统参数的影响因素与通信系统参数的映射关系，确定通信系统参数；
第三、根据获取到的第二指示信息，以及根据通信系统参数的影响因素与通信系统参数的映射关系，确定通信系统参数。
具体的，从网络侧设备发送的网络消息中获取上述第二指示信息。
其中，上述网络消息可以是SI消息、RRC消息、DCI消息中的任意一种。例如，网络侧设备周期性或者非周期性检测通信系统的各个影响因素，根据检测到的各个影响因素，以及影响因素与通信系统参数的映射关系确定出通信系统参数；然后将指示该通信系统参数的指示信息携带在SI消息、或者RRC消息或者DCI消息中发送给发送端设备。
上述只是列举了网络消息的三种可能的具体类型，除此之外，网络消息还可以是其它类型的消息，此处只是示例性说明，并不构成对网络消息的具体类型的限定。
具体的，在上述步骤602中,根据通信系统参数的影响因素与通信系统参数的映射关系，确定通信系统参数，至少包括如下步骤1、步骤2和步骤3；
步骤1、获取通信系统参数的影响因素；
步骤2、根据上述影响因素与Sidelink信道的带宽部分的第一映射关系，确定Sidelink信道的带宽部分；
步骤3、根据Sidelink信道的带宽部分与SCS的第二映射关系，确定Sidelink信道的SCS。
在本公开实施例中，发送端设备可以按照设定周期或者随机检测通信系统参数的影响因素的参数值，然后，根据检测到的参数值，以及通信系统参数的影响因素与通信系统参数的映射关系，确定通信系统参数。
并且，在本公开实施例中，当发送端设备确定出通信系统参数后，根据该通信系统参数通过Sidelink信道向接收端设备发送信息。
具体的，上述影响因素包括以下中的至少一种：
发送端设备的绝对移动速度、接收端设备的绝对移动速度、发送端设备和接收端设备之间的相对移动速度、Sidelink信道当前传输的业务的相关参数以及Sidelink信道状态测量值。
其中，上述发送端设备和接收端设备之间的相对移动速度，包括如下两种情况：发送端设备相对接收端设备的相对移动速度，以及，接收端设备相对发送端设备的相对移动速度。
具体的，在本公开实施例中，上述通信系统的影响因素可以包括发送端设备的绝对移动速度、接收端设备的绝对移动速度、发送端设备和接收端设备之间的相对移动速度、Sidelink信道当前传输的业务的相关参数以及Sidelink信道状态测量值中的一种或者多种。
在本公开实施例中，上述业务的相关参数包括以下中的至少一种：
业务的优先级等级、业务的延时要求、业务的可靠性、业务的吞吐量需求值、业务占用的带宽；
上述Sidelink信道状态测量值包括以下中的至少一种：
频偏值、RSRP值、SINR值。
其中，在本公开实施例中，业务的相关参数可以包括业务的优先等级、业务的延时要求、业务的可靠性、业务的吞吐量需求值以及业务占用的带宽中的一种或者多种组合；上述Sidelink信道状态测量值可以包括频偏值、RSRP值以及SINR值中的一种或者多种。
由于在上述通信系统参数的确定方法实施例中已经详细介绍如何根据通信系统参数的影响因素与通信系统参数之间的映射关系确定通信系统参数，具体过程可以参考上述实施例，此处不再赘述确定通信系统参数的具体过程。
步骤604，向接收端设备发送第一指示信息；其中，该第一指示信息用 于指示通信系统参数，该通信系统参数用于接收端设备对Sidelink信道上承载的信息进行解码。
在本公开实施例中，上述通信系统参数包括对物理旁链路控制信道上承载的信息进行解码的第一通信系统参数；和/或，对物理旁链路数据信道上承载的信息进行解码的第二通信系统参数。
具体的，若是上述Sidelink信道只包括物理旁链路控制信道，对应的，上述通信系统参数只包括第一通信系统参数；若是上述Sidelink信道只包括物理旁链路数据信道，相应的，上述通信系统参数只包括第二通信系统参数；若是上述Sidelink信道包括物理旁链路控制信道和物理旁链路数据信道，相应的，上述通信系统参数包括第一通信系统参数和第二通信系统参数。
在本公开实施例中，若是Sidelink信道包括物理旁链路控制信道和物理旁链路数据信道，则在该种情况下，上述步骤602中确定通信系统参数包括确定第一通信系统参数和第二通信系统参数，具体确定过程至少包括如下四种情形：
情形A、网络侧设备向发送端设备发送网络消息，该网络消息中携带有指示第一通信系统参数和第二通信系统参数的第二指示信息；发送端设备从接收到的网络消息中获取第二指示信息，并根据第二指示信息确定第一通信系统参数和第二通信系统参数；
情形B、发送端设备周期性或者非周期性检测通信系统参数的各个影响因素的参数值，然后根据检测到的参数值，以及影响因素与通信系统参数的映射关系确定第一通信系统参数和第二通信系统参数；
情形C、网络侧设备向发送端设备发送网络消息，该网络消息中携带有指示第一通信系统参数的第二指示信息，发送端设备从接收到的网络消息中获取第二指示信息，并根据第二指示信息确定第一通信系统参数；另外，发送端设备周期性或者非周期性检测通信系统参数的各个影响因素的参数值，然后根据检测到的参数值，以及影响因素与通信系统参数的映射关系确定第二通信系统参数；
情形D、网络侧设备向发送端设备发送网络消息，该网络消息中携带有指示第二通信系统参数的第二指示信息，发送端设备从接收到的网络消息中 获取第二指示信息，并根据第二指示信息确定第二通信系统参数；另外，发送端设备周期性或者非周期性检测通信系统参数的各个影响因素的参数值，然后根据检测到的参数值，以及影响因素与通信系统参数的映射关系确定第一通信系统参数。
在一种具体实施方式中，上述步骤604中，向接收端设备发送第一指示信息，可以是向接收端设备发送指示第二通信系统参数的第一指示信息，具体包括：
向接收端设备发送SCI信息，该SCI信息中携带有第一指示信息，该第一指示信息用于指示第二通信系统参数。
在本公开实施例中，SCI信息通过物理旁链路控制信道发送给接收端设备，因此，当接收端设备在接收到发送端设备发送的SCI信息后，需要先对物理旁链路控制信道所承载的信息进行解码，然后从解码后的SCI信息中获取第一指示信息，并根据该第一指示信息确定第二通信系统参数，使用第二通信系统参数对物理旁链路数据信道承载的信息进行解码。
因此，在上述情况下，接收端设备需要先确定第一通信系统参数，第一通信系统参数可以由接收端设备根据通信系统参数的影响因素与通信系统参数的映射关系确定，也可以根据从网络侧设备获取的第一指示信息确定。下述将结合具体实施例进行说明。
图7为本公开实施例提供的通信系统参数的确定方法的第四种流程示意图，该方法为发送端设备和接收端设备共同执行，图7所示的方法，至少包括如下步骤：
步骤702，发送端设备获取通信系统参数的影响因素的参数值；
步骤704，发送端设备根据上述参数值，以及通信系统参数的影响因素与通信系统参数之间的映射关系，确定通信系统参数。
其中，上述步骤704中确定的通信系统参数包括第一通信系统参数和第二通信系统参数。
步骤706，发送端设备通过物理旁链路控制信道向接收端设备发送SCI信息，该信息中携带有指示第二通信系统参数的第一指示信息。
步骤708，接收端设备根据通信系统参数的影响因素与通信系统参数之 间的映射关系，确定第一通信系统参数。
步骤710，接收端设备使用第一通信系统参数对接收到的物理旁链路控制信道上承载的SCI信息进行解码。
步骤712，接收端设备从解码后的SCI信息中获取指示第二通信系统参数的第一指示信息。
步骤714，接收端设备根据上述第一指示信息确定第二通信系统参数。
当接收端设备确定出第二通信系统参数后，则使用第二通信系统参数对物理旁链路数据信道上承载的信息进行解码。
图8为本公开实施例提供的通信系统参数的确定方法的第五种流程示意图，该方法由网络侧设备、发送端设备和接收端设备共同执行，图8所示的方法，至少包括如下步骤：
步骤802，网络侧设备确定第一通信系统参数。
在步骤802中，网络侧设备根据通信系统参数的影响因素与通信系统参数的映射关系，确定第一通信系统参数。
步骤804，网络侧设备向接收端设备发送网络消息，该网络消息中携带有指示第一通信系统参数的第一指示信息。
步骤806，发送端设备确定通信系统参数。
其中，在步骤806中，发送端设备根据通信系统参数的影响因素与通信系统参数的映射关系，确定通信系统参数，且发送端设备确定的通信系统参数包括第一通信系统参数和第二通信系统参数。
步骤810，发送端设备向接收端设备发送SCI信息，该SCI信息中携带有指示第二通信系统参数的第一指示信息。
其中，在步骤810中，发送端设备根据第一通信系统参数对SCI信息进行编码，然后通过物理旁链路控制信道发送给接收端设备。
步骤812，接收端设备接收到网路侧设备发送的网络消息后，从该网络消息中获取指示第一通信系统参数的第一指示信息。
步骤814，接收端设备使用第一通信系统参数对接收到的SCI信息进行解码。
步骤816，接收端设备从上述解码后的SCI信息中获取指示第二通信系 统参数的第一指示信息。
步骤818，接收端设备根据上述第一指示信息确定第二通信系统参数。
其中，在该实施例中，上述网络侧设备向接收端设备发送网络消息携带有第一指示信息的网络消息，以及发送端设备向接收端设备发送携带有第一指示信息的SCI信息，两者可以是同步执行，也可以具有先后顺序，本公开实施例并不对上述两个过程的执行先后顺序进行限定。
本公开实施例提供的通信系统参数的指示方法，可以根据通信系统参数的影响因素与通信系统参数之间的映射关系确定出通信系统参数，并将指示Sidelink信道的通信系统参数的第一指示信息发送给接收端设备，这样，接收端设备可以直接根据该第一指示信息确定出对Sidelink信道上承载的信息进行解码的通信系统参数。避免了通过盲检的方式确定通信系统参数，降低了接收端设备的工作量以及解码的复杂度，提高了通信效能。
对应上述实施例提供的通信系统参数的确定方法，本公开实施例提供了一种接收端设备，本公开实施例提供的接收端设备能够实现上述实施例中接收端设备实现的各个过程。
图9为本公开实施例提供的接收端设备的模块组成示意图，图9所示的设备，包括：
第一确定模块901，用于根据获取到的第一指示信息确定通信系统参数；和/或，根据通信系统参数的影响因素与通信系统参数之间的映射关系，确定通信系统参数；其中，上述通信系统参数包括Sidelink信道的SCS；通信系统参数，用于对Sidelink信道上承载的信息进行解码。
可选地，上述通信系统参数还包括：Sidelink信道的CP或者Sidelink信道的带宽部分。
可选地，上述通信系统参数包括对物理旁链路控制信道上承载的信息进行解码的第一通信系统参数；和/或，对物理旁链路数据信道上承载的信息进行解码的第二通信系统参数。
可选地，若上述第一指示信息指示第一通信系统参数；
相应的，从网络侧设备发送的网络消息中获取上述第一指示信息。
可选地，若上述第一指示信息指示第二通信系统参数；
上述第一指示信息通过以下方式中的任意一种方式获取：
从网络侧设备发送的网络消息中获取；
从根据第一通信系统参数对物理旁链路控制信道上承载的旁链路的控制信息SCI进行解码得到的信息中获取。
可选地，上述网络消息包括以下消息中的一种：
SI消息、RRC消息,或DCI消息。
可选地，上述第一确定模块901，具体用于：
根据通信系统参数的影响因素与带宽部分的第一映射关系，确定Sidelink信道的带宽部分；根据Sidelink信道的带宽部分与SCS的第二映射关系，确定Sidelink信道的SCS。
可选地，上述影响因素包括以下中的至少一种：
发送端设备的绝对移动速度、接收端设备的绝对移动速度、发送端设备和接收端设备之间的相对移动速度、接收端设备当前正在处理的业务的相关参数以及Sidelink信道状态测量值。
可选地，上述业务的相关参数包括以下中的至少一种：
业务的优先级等级、业务的延时要求、业务的可靠性值、业务的吞吐量需求值、业务占用的带宽；
上述Sidelink信道状态测量值包括以下中的至少一种：
频偏值、RSRP值、SINR值。
本公开实施例提供的接收端设备，可以根据获取到的第一指示信息确定通信系统参数；和/或，根据通信系统参数的影响因素与通信系统参数之间的映射关系确定通信系统参数；这样，避免了接收端设备通过盲检的方式查找通信系统参数，从而可以降低接收端设备的工作量以及解码的复杂度，提高通信效能。
对应上述实施例提供的通信系统参数的指示方法，本公开实施例提供了一种网络侧设备，本公开实施例提供的网络侧设备能够实现上述实施例中网络侧设备实现的各个过程。
图10为本公开实施例提供的网络侧设备的模块组成示意图，图10所示的网络侧设备，包括：
第二确定模块1001，用于根据通信系统参数的影响因素与通信系统参数的映射关系，确定通信系统参数；其中，上述通信系统参数包括Sidelink信道的SCS；
第一发送模块1002，用于向接收端设备发送第一指示信息；其中，该第一指示信息用于指示通信系统参数，上述通信系统参数用于接收端设备对Sidelink信道上承载的信息进行解码。
可选地，上述通信系统参数还包括：Sidelink信道的CP或者Sidelink信道的带宽部分。
可选地，上述通信系统参数包括对物理旁链路控制信道上承载的信息进行解码的第一通信系统参数；和/或，对物理Sidelink信道上承载的信息进行解码的第二通信系统参数。
可选地，上述第二确定模块1001，具体用于：
获取上述通信系统参数的影响因素；根据上述影响因素与上述Sidelink信道的带宽部分的第一映射关系，确定上述Sidelink信道的带宽部分；根据上述Sidelink信道的带宽部分与SCS的第二映射关系，确定上述Sidelink信道的SCS。
可选地，上述影响因素包括以下中的至少一种：
发送端设备的绝对移动速度、接收端设备的绝对移动速度、发送端设备和接收端设备之间的相对移动速度、上述Sidelink信道当前传输的业务的相关参数以及上述Sidelink信道状态测量值。
可选地，上述业务的相关参数包括以下中的至少一种：
上述业务的优先级等级、上述业务的延时要求、上述业务的可靠性值、上述业务的吞吐量需求值、上述业务占用的带宽；
上述Sidelink信道状态测量值包括以下中的至少一种：
频偏值、RSRP值、SINR值。
可选地，上述第一发送模块1002，具体用于：
向接收端设备发送网络消息，该网络消息中携带上述第一指示信息；
其中，上述网络消息包括以下消息中的一种：SI消息、RRC消息，或DCI。
本公开实施例提供的网络侧设备，可以根据通信系统参数的影响因素与通信系统参数之间的映射关系确定出通信系统参数，并将指示Sidelink信道的通信系统参数的第一指示信息发送给接收端设备，这样，接收端设备可以直接根据该第一指示信息确定出对Sidelink信道上承载的信息进行解码的通信系统参数。避免了通过盲检的方式确定通信系统参数，降低了接收端设备的工作量以及解码的复杂度，提高了通信效能。
对应上述实施例提供的通信系统参数的指示方法，本公开实施例提供了一种发送端设备，本公开实施例提供的发送端设备能够实现上述实施例中发送端设备实现的各个过程。
图11为本公开实施例提供的发送端设备的模块组成示意图，图11所示的发送端设备，包括：
第三确定模块1101，用于确定通信系统参数；其中，该通信系统参数根据获取到的第二指示信息确定；和/或，根据通信系统参数的影响因素与通信系统参数的映射关系确定；其中，上述通信系统参数包括Sidelink信道的SCS；
第二发送模块1102，用于向接收端设备发送第一指示信息；其中，上述第一指示信息用于指示上述通信系统参数，上述通信系统参数用于接收端设备对上述Sidelink信道上承载的信息进行解码。
可选地，上述通信系统参数还包括：Sidelink信道的CP或者Sidelink信道的带宽部分。
可选地，上述通信系统参数包括对物理旁链路控制信道上承载的信息进行解码的第一通信系统参数；和/或，对物理旁链路数据信道上承载的信息进行解码的第二通信系统参数。
可选地，上述第二发送模块1102，具体用于：
向接收端设备发送旁链路的控制信息SCI，该SCI中携带有第一指示信息，上述第一指示信息指示所述第二通信系统参数。
可选地，上述第三确定模块1101，具体用于：
获取上述通信系统参数的影响因素；根据上述影响因素与上述Sidelink信道的带宽部分的第一映射关系，确定上述Sidelink信道的带宽部分；根据上述Sidelink信道的带宽部分与SCS的第二映射关系，确定上述Sidelink信道的SCS。
可选地，上述影响因素包括以下中的至少一种：
发送端设备的绝对移动速度、接收端设备的绝对移动速度、发送端设备和接收端设备之间的相对移动速度、上述Sidelink信道当前传输的业务的相关参数以及上述Sidelink信道状态测量值。
可选地，上述业务的相关参数包括以下中的至少一种：
上述业务的优先级等级、上述业务的延时要求、上述业务的可靠性值、上述业务的吞吐量需求值、上述业务占用的带宽；
上述Sidelink信道状态测量值包括以下中的至少一种：
频偏值、RSRP值、SINR值。
可选地，从网络侧设备发送的网络消息中获取上述第二指示信息。
本公开实施例提供的发送端设备，可以根据通信系统参数的影响因素与通信系统参数之间的映射关系确定出通信系统参数，并将指示Sidelink信道的通信系统参数的第一指示信息发送给接收端设备，这样，接收端设备可以直接根据该第一指示信息确定出对Sidelink信道上承载的信息进行解码的通信系统参数。避免了通过盲检的方式确定通信系统参数，降低了接收端设备的工作量以及解码的复杂度，提高了通信效能。
对应上述实施例提供的通信系统参数确定方法，本实施例提供了一种接收端设备，本公开实施例提供的接收端设备能够实现上述实施例中接收端设备实现的各个过程。
图12为本公开一个实施例提供的接收端设备的结构示意图，如图12所示，该接收端设备1200包括：至少一个处理器1201、存储器1202、至少一个网络接口1204和用户接口1203。接收端设备1200中的各个组件通过总线系统1205耦合在一起。可理解，总线系统1205用于实现这些组件之间的连接通信。总线系统1205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12中将各种总线都标为总线系统1205。
其中，用户接口1203可以包括显示器、键盘、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1202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(Read-Only Memory，ROM)、可编程只读存储器(Programmable ROM，PROM)、可擦除可编程只读存储器(Erasable PROM，EPROM)、电可擦除可编程只读存储器(Electrically EPROM，EEPROM)或闪存。易失性存储器可以是随机存取存储器(Random Access Memory，RAM)，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(Static RAM，SRAM)、动态随机存取存储器(Dynamic RAM，DRAM)、同步动态随机存取存储器(Synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data Rate SDRAM，DDRS DRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(Synchlink DRAM，SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM，DRRAM)。本公开实施例描述的系统和方法的存储器1202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1202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12021和应用程序12022。
其中，操作系统12021，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12022，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12022中。
在本公开实施例中，接收端设备1200还包括：存储器1202、处理器1201、存储在存储器上1202并可在处理器1201上运行的计算机程序，计算机程序 被处理器1201执行时实现如下步骤：
根据获取到的第一指示信息确定通信系统参数；和/或，根据通信系统参数的影响因素与通信系统参数之间的映射关系，确定上述通信系统参数；其中，上述通信系统参数包括Sidelink信道的SCS；上述通信系统参数，用于对上述Sidelink信道上承载的信息进行解码。
上述本公开实施例揭示的方法可以应用于处理器1201中，或者由处理器1201实现。处理器1201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1201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1201可以是通用处理器、数字信号处理器(Digital Signal Processor，DSP)、专用集成电路(Application Specific Integrated Circuit，ASIC)、现场可编程门阵列(Field Programmable Gate Array，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1202，处理器1201读取存储器1202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1201执行时实现如上述实施例中的各步骤。
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(Application Specific Integrated Circuits，ASIC)、数字信号处理器(Digital Signal Processing，DSP)、数字信号处理设备(DSP Device，DSPD)、可编程逻辑设备(Programmable Logic Device，PLD)、现场可编程门阵列(Field-Programmable Gate Array，FPGA)、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。
本公开实施例提供的接收端设备，可以根据获取到的第一指示信息确定通信系统参数；和/或，根据通信系统参数的影响因素与通信系统参数之间的映射关系确定通信系统参数；这样，避免了接收端设备通过盲检的方式查找通信系统参数，从而可以降低接收端设备的工作量以及解码的复杂度，提高通信效能。
对应上述实施例提供的通信系统参数的指示方法，本实施例提供了一种网络侧设备，本公开实施例提供的网络侧设备能够实现上述实施例中网络侧设备实现的各个过程。
图13为本公开一个实施例提供的网络侧设备的结构示意图，如图13所示，该网络侧设备1300包括：处理器1301、收发机1302、存储器1303、用户接口1304和总线接口。
在本公开实施例中，网络侧设备1300还包括：存储在存储器1303上并可在处理器1301上运行的计算机程序，计算机程序被处理器1301、执行时实现如下步骤：
根据通信系统参数的影响因素与通信系统参数的映射关系，确定通信系统参数；其中，上述通信系统参数包括Sidelink信道的SCS；
向接收端设备发送第一指示信息；其中，上述第一指示信息用于指示上述通信系统参数，上述通信系统参数用于接收端设备对上述Sidelink信道上承载的信息进行解码。
在图13中，总线架构可以包括任意数量的互联的总线和桥，具体由处理器1301代表的一个或多个处理器和存储器1303代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口提供接口。收发机1302可以是多个元件，即包括发送机和接收机，提供用于在传输介质上与各种其他装置通信的单元。针对不同的用户侧设备，用户接口1304还可以是能够外接内接需要设备的接口， 连接的设备包括但不限于小键盘、显示器、扬声器、麦克风、操纵杆等。
处理器1301负责管理总线架构和通常的处理，存储器1303可以存储处理器1301在执行操作时所使用的数据。
计算机程序被处理器1301执行时实现如上述实施例中的各步骤。
本公开实施例提供的网络侧设备，可以根据通信系统参数的影响因素与通信系统参数之间的映射关系确定出通信系统参数，并将指示Sidelink信道的通信系统参数的第一指示信息发送给接收端设备，这样，接收端设备可以直接根据该第一指示信息确定出对Sidelink信道上承载的信息进行解码的通信系统参数。避免了通过盲检的方式确定通信系统参数，降低了接收端设备的工作量以及解码的复杂度，提高了通信效能。
网络侧设备1300能够实现前述实施例中网络侧设备实现的各个过程，并到达相同的技术效果，为避免重复，这里不再赘述。
对应上述实施例提供的通信系统参数的指示方法，本实施例提供了一种发送端设备，本公开实施例提供的发送端设备能够实现上述实施例中发送端设备实现的各个过程。
图14为本公开一个实施例提供的发送端设备的结构示意图，如图14所示，该发送端设备1400包括：至少一个处理器1401、存储器1402、至少一个网络接口1404和用户接口1403。发送端设备1400中的各个组件通过总线系统1405耦合在一起。可理解，总线系统1405用于实现这些组件之间的连接通信。总线系统1405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14中将各种总线都标为总线系统1405。
其中，用户接口1403可以包括显示器、键盘、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1402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(Read-Only Memory，ROM)、可编程只读存储器(Programmable ROM，PROM)、可擦除可编程只读存储器(Erasable PROM， EPROM)、电可擦除可编程只读存储器(Electrically EPROM，EEPROM)或闪存。易失性存储器可以是随机存取存储器(Random Access Memory，RAM)，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(Static RAM，SRAM)、动态随机存取存储器(Dynamic RAM，DRAM)、同步动态随机存取存储器(Synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data Rate SDRAM，DDR SDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(Synchlink DRAM，SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM，DRRAM)。本公开实施例描述的系统和方法的存储器1402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1402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14021和应用程序14022。
其中，操作系统14021，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14022，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14022中。
在本公开实施例中，发送端设备1400还包括：存储器1402、处理器1401、存储在存储器上1402并可在处理器1401上运行的计算机程序，计算机程序被处理器1401执行时实现如下步骤：
确定通信系统参数；其中，上述通信系统参数根据获取到的第二指示信息确定；和/或，根据通信系统参数的影响因素与通信系统参数的映射关系确定；其中，所述通信系统参数包括Sidelink信道的SCS；
向接收端设备发送第一指示信息；其中，所述第一指示信息用于指示所述通信系统参数，所述通信系统参数用于接收端设备对所述Sidelink信道上承载的信息进行解码。
上述本公开实施例揭示的方法可以应用于处理器1401中，或者由处理器 1401实现。处理器1401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1401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1401可以是通用处理器、数字信号处理器(Digital Signal Processor，DSP)、专用集成电路(Application Specific Integrated Circuit，ASIC)、现场可编程门阵列(Field Programmable Gate Array，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1402，处理器1401读取存储器1402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1401执行时实现如上述实施例中的各步骤。
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(Application Specific Integrated Circuits，ASIC)、数字信号处理器(Digital Signal Processing，DSP)、数字信号处理设备(DSP Device，DSPD)、可编程逻辑设备(Programmable Logic Device，PLD)、现场可编程门阵列(Field-Programmable Gate Array，FPGA)、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。
本公开实施例提供的发送端设备，可以根据通信系统参数的影响因素与通信系统参数之间的映射关系确定出通信系统参数，并将指示Sidelink信道的通信系统参数的第一指示信息发送给接收端设备，这样，接收端设备可以直接根据该第一指示信息确定出对Sidelink信道上承载的信息进行解码的通 信系统参数。避免了通过盲检的方式确定通信系统参数，降低了接收端设备的工作量以及解码的复杂度，提高了通信效能。
发送端设备1400能够实现前述实施例中发送端设备实现的各个过程，为避免重复，这里不再赘述。
本公开实施例还提供一种计算机可读存储介质，计算机可读存储介质上存储有计算机程序，该计算机程序被处理器执行时实现上述实施例中通信系统参数确定方法的各个过程，且能达到相同的技术效果，或者，该计算机程序被处理器执行时实现上述实施例中通信系统参数的指示方法实施例的各个过程，且能达到相同的技术效果；或者，该计算机程序被处理器执行时实现上述实施例中通信系统参数的指示方法实施例的各个过程，且能达到相同的技术效果为避免重复，这里不再赘述。其中，所述的计算机可读存储介质，如只读存储器(Read-Only Memory，简称ROM)、随机存取存储器(Random Access Memory，简称RAM)、磁碟或者光盘等。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本公开实施例的范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本公开实施例所提供的几个实施例中，应该理解到，所揭露的系统、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本公开实施例各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本公开实施例的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案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中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本公开实施例各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述仅为本公开的实施例而已，并不用于限制本公开。对于本领域技术人员来说，本公开可以有各种更改和变化。凡在本公开的精神和原理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权利要求范围之内。

Claims (31)

  1. 一种通信系统参数的确定方法，应用于接收端设备，包括：
    根据获取到的第一指示信息确定通信系统参数；和/或，根据通信系统参数的影响因素与通信系统参数之间的映射关系，确定所述通信系统参数；其中，所述通信系统参数包括旁链路Sidelink信道的子载波间隔SCS；所述通信系统参数，用于对所述Sidelink信道上承载的信息进行解码。
  2. 如权利要求1所述的方法，其中，所述通信系统参数还包括：所述Sidelink信道的循环前缀CP或者所述Sidelink信道的带宽部分。
  3. 如权利要求1或2所述的方法，其中，所述通信系统参数包括对物理旁链路控制信道上承载的信息进行解码的第一通信系统参数；和/或，对物理旁链路数据信道上承载的信息进行解码的第二通信系统参数。
  4. 如权利要求3所述的方法，其中，若所述第一指示信息指示所述第一通信系统参数；
    从网络侧设备发送的网络消息中获取所述第一指示信息。
  5. 如权利要求3所述的方法，其中，若所述第一指示信息指示所述第二通信系统参数；
    所述第一指示信息通过以下方式中的任意一种方式获取：
    从网络侧设备发送的网络消息中获取；
    从根据所述第一通信系统参数对所述物理旁链路控制信道上承载的旁链路的控制信息SCI进行解码得到的信息中获取。
  6. 如权利要求4或5所述的方法，其中，所述网络消息包括以下消息中的一种：
    系统广播SI消息，无线资源控制RRC消息，或下行控制消息DCI。
  7. 如权利要求1所述的方法，还包括：
    通过如下步骤根据通信系统参数的影响因素与通信系统参数之间的映射关系，确定所述通信系统参数：
    根据通信系统参数的影响因素与带宽部分的第一映射关系，确定所述Sidelink信道的带宽部分；
    根据所述Sidelink信道的带宽部分与所述SCS的第二映射关系，确定所述Sidelink信道的SCS。
  8. 如权利要求1或7所述的方法，其中，所述影响因素包括以下中的至少一种：
    发送端设备的绝对移动速度、接收端设备的绝对移动速度、发送端设备和接收端设备之间的相对移动速度、所述接收端设备当前正在处理的业务的相关参数以及所述Sidelink信道状态测量值。
  9. 如权利要求8所述的方法，其中，所述业务的相关参数包括以下中的至少一种：
    所述业务的优先级等级、所述业务的延时要求、所述业务的可靠性值、所述业务的吞吐量需求值、所述业务占用的带宽；
    所述Sidelink信道状态测量值包括以下中的至少一种：
    频偏值、参考信号接收功率RSRP值、信号与干扰加噪声比SINR值。
  10. 一种通信系统参数的指示方法，应用于网络侧设备，包括：
    根据通信系统参数的影响因素与通信系统参数的映射关系，确定通信系统参数；其中，所述通信系统参数包括Sidelink信道的子载波间隔SCS；
    向接收端设备发送第一指示信息；其中，所述第一指示信息用于指示所述通信系统参数，所述通信系统参数用于接收端设备对所述Sidelink信道上承载的信息进行解码。
  11. 如权利要求10所述的方法，其中，所述通信系统参数还包括：所述Sidelink信道的循环前缀CP或者所述Sidelink信道的带宽部分。
  12. 如权利要求10或11所述的方法，其中，所述通信系统参数包括对物理旁链路控制信道上承载的信息进行解码的第一通信系统参数；和/或，对物理旁链路数据信道上承载的信息进行解码的第二通信系统参数。
  13. 如权利要求10所述的方法，其中，所述根据通信系统参数的影响因素与所述通信系统参数的映射关系，确定通信系统参数，包括：
    获取所述通信系统参数的影响因素；
    根据所述影响因素与所述Sidelink信道的带宽部分的第一映射关系，确 定所述Sidelink信道的带宽部分；
    根据所述Sidelink信道的带宽部分与所述SCS的第二映射关系，确定所述Sidelink信道的SCS。
  14. 如权利要求10或13所述的方法，其中，所述影响因素包括以下中的至少一种：
    发送端设备的绝对移动速度、接收端设备的绝对移动速度、发送端设备和接收端设备之间的相对移动速度、所述Sidelink信道当前传输的业务的相关参数以及所述Sidelink信道状态测量值。
  15. 如权利要求14所述的方法，其中，所述业务的相关参数包括以下中的至少一种：
    所述业务的优先级等级、所述业务的延时要求、所述业务的可靠性值、所述业务的吞吐量需求值、所述业务占用的带宽；
    所述Sidelink信道状态测量值包括以下中的至少一种：
    频偏值、参考信号接收功率RSRP值、信号与干扰加噪声比SINR值。
  16. 如权利要求10所述的方法，其中，所述向接收端设备发送第一指示信息，包括：
    向接收端设备发送网络消息，所述网络消息中携带所述第一指示信息；
    其中，所述网络消息包括以下消息中的一种：系统广播SI消息，无线资源控制RRC消息，或下行控制消息DCI。
  17. 一种通信系统参数的指示方法，应用于发送端设备，包括：
    确定通信系统参数；其中，所述通信系统参数根据获取到的第二指示信息确定；和/或，根据通信系统参数的影响因素与通信系统参数的映射关系确定；其中，所述通信系统参数包括Sidelink信道的子载波间隔SCS；
    向接收端设备发送第一指示信息；其中，所述第一指示信息用于指示所述通信系统参数，所述通信系统参数用于接收端设备对所述Sidelink信道上承载的信息进行解码。
  18. 如权利要求17所述的方法，其中，所述通信系统参数还包括：所述Sidelink信道的循环前缀CP或者所述Sidelink信道的带宽部分。
  19. 如权利要求17或18所述的方法，其中，所述通信系统参数包括对 物理旁链路控制信道上承载的信息进行解码的第一通信系统参数；和/或，对物理旁链路数据信道上承载的信息进行解码的第二通信系统参数。
  20. 如权利要求19所述的方法，其中，所述向接收端设备发送第一指示信息，包括：
    向所述接收端设备发送旁链路的控制信息SCI，所述SCI中携带有第一指示信息，所述第一指示信息指示所述第二通信系统参数。
  21. 如权利要求17所述的方法，其中，根据通信系统参数的影响因素与所述通信系统参数的映射关系，确定所述通信系统参数，包括：
    获取所述通信系统参数的影响因素；
    根据所述影响因素与所述Sidelink信道的带宽部分的第一映射关系，确定所述Sidelink信道的带宽部分；
    根据所述Sidelink信道的带宽部分与所述SCS的第二映射关系，确定所述Sidelink信道的SCS。
  22. 如权利要求17或21所述的方法，其中，所述影响因素包括以下中的至少一种：
    发送端设备的绝对移动速度、接收端设备的绝对移动速度、发送端设备和接收端设备之间的相对移动速度、所述Sidelink信道当前传输的业务的相关参数以及所述Sidelink信道状态测量值。
  23. 如权利要求22所述的方法，其中，所述业务的相关参数包括以下中的至少一种：
    所述业务的优先级等级、所述业务的延时要求、所述业务的可靠性值、所述业务的吞吐量需求值、所述业务占用的带宽；
    所述Sidelink信道状态测量值包括以下中的至少一种：
    频偏值、参考信号接收功率RSRP值、信号与干扰加噪声比SINR值。
  24. 如权利要求17所述的方法，其中，从网络侧设备发送的网络消息中获取所述第二指示信息。
  25. 一种接收端设备，包括：
    第一确定模块，用于根据获取到的第一指示信息确定通信系统参数；和/或，根据通信系统参数的影响因素与通信系统参数之间的映射关系，确定所 述通信系统参数；其中，所述通信系统参数包括Sidelink信道的子载波间隔SCS；所述通信系统参数，用于对所述Sidelink信道上承载的信息进行解码。
  26. 一种网络侧设备，包括：
    第二确定模块，用于根据通信系统参数的影响因素与通信系统参数的映射关系，确定通信系统参数；其中，所述通信系统参数包括Sidelink信道的子载波间隔SCS；
    第一发送模块，用于向接收端设备发送第一指示信息；其中，所述第一指示信息用于指示所述通信系统参数，所述通信系统参数用于接收端设备对所述Sidelink信道上承载的信息进行解码。
  27. 一种发送端设备，包括：
    第三确定模块，用于确定通信系统参数；其中，所述通信系统参数根据获取到的第二指示信息确定；和/或，根据通信系统参数的影响因素与通信系统参数的映射关系确定；其中，所述通信系统参数包括Sidelink信道的子载波间隔SCS；
    第二发送模块，用于向接收端设备发送第一指示信息；其中，所述第一指示信息用于指示所述通信系统参数，所述通信系统参数用于接收端设备对所述Sidelink信道上承载的信息进行解码。
  28. 一种接收端设备，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程序，所述程序被所述处理器执行时实现如权利要求1-9中任一项所述的通信系统参数的确定方法的步骤。
  29. 一种网络侧设备，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程序，所述程序被所述处理器执行时实现如权利要求10-16中任一项所述的通信系统参数的指示方法的步骤。
  30. 一种发送端设备，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程序，所述程序被所述处理器执行时实现如权利要求17-24中任一项所述的通信系统参数的指示方法的步骤。
  31. 一种计算机可读存储介质，所述计算机可读存储介质上存储有程序，所述程序被处理器执行时实现如权利要求1-9中任一项所述的通信系统参数的确定方法的步骤；或者，所述程序被处理器执行时实现如权利要求10-16 中任一项所述的通信系统参数的指示方法的步骤；或者，所述程序被处理器执行时实现如权利要求17-24中任一项所述的通信系统参数的指示方法的步骤。
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