WO2023098684A1 - 信息传输方法及设备 - Google Patents

信息传输方法及设备 Download PDF

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Publication number
WO2023098684A1
WO2023098684A1 PCT/CN2022/135187 CN2022135187W WO2023098684A1 WO 2023098684 A1 WO2023098684 A1 WO 2023098684A1 CN 2022135187 W CN2022135187 W CN 2022135187W WO 2023098684 A1 WO2023098684 A1 WO 2023098684A1
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Prior art keywords
information
symbol
resource
terminal
transmission
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PCT/CN2022/135187
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English (en)
French (fr)
Inventor
彭淑燕
纪子超
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维沃移动通信有限公司
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Publication of WO2023098684A1 publication Critical patent/WO2023098684A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/382—Monitoring; Testing of propagation channels for resource allocation, admission control or handover
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0078—Timing of allocation
    • H04L5/0082—Timing of allocation at predetermined intervals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0096—Indication of changes in allocation
    • H04L5/0098—Signalling of the activation or deactivation of component carriers, subcarriers or frequency bands
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/14—Spectrum sharing arrangements between different networks

Definitions

  • the present application belongs to the technical field of communication, and in particular relates to an information transmission method and equipment.
  • LTE Long Term Evolution
  • SL sidelink
  • unlicensed bands can be used as supplements to licensed frequency bands (licensed bands) to help operators expand service capacity.
  • the related art does not provide a technical solution for SL transmission on the shared frequency band, which affects the communication performance.
  • Embodiments of the present application provide an information transmission method and device, which can solve the problem that SL cannot be transmitted on a shared frequency band and communication performance is affected.
  • an information transmission method including: on the shared frequency band, the terminal transmits information on SL; wherein, the transmission information includes at least one of the following: receiving information, sending information, performing channel detection, performing SL channel access.
  • an information transmission device including: a communication module, configured to transmit information on a shared frequency band on an SL; wherein, the transmission information includes at least one of the following: receiving information, sending information, and performing channel Detect and perform SL channel access.
  • a terminal in a third aspect, includes a processor and a memory, the memory stores programs or instructions that can run on the processor, and when the programs or instructions are executed by the processor, the following The steps of the method in one aspect.
  • a terminal including a processor and a communication interface, wherein the communication interface is used to transmit information on the SL on a shared frequency band; wherein the transmission information includes at least one of the following: receiving information , send information, perform channel detection, and perform SL channel access.
  • an information transmission system including: a terminal and a network side device, where the terminal can be used to execute the steps of the method described in the first aspect.
  • a readable storage medium where a program or an instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, the steps of the method as described in the first aspect are implemented.
  • a chip in a seventh aspect, includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the method as described in the first aspect A step of.
  • a computer program/program product is provided, the computer program/program product is stored in a storage medium, and the computer program/program product is executed by at least one processor to implement the method described in the first aspect method steps.
  • the terminal on the shared frequency band, can transmit information on the side link, and the transmission information can include at least one of the following: receiving information, sending information, performing channel detection, and performing SL channel access .
  • the embodiment of the present application solves the problem that the SL cannot be transmitted on the shared frequency band and affects the communication performance, which is beneficial to improve the performance of the communication system and the utilization rate of resources.
  • FIG. 1 is a schematic diagram of a wireless communication system according to an embodiment of the present application.
  • FIG. 2 is a schematic flowchart of an information transmission method according to an embodiment of the present application.
  • FIG. 3 is a schematic diagram of CP extension according to an embodiment of the present application.
  • FIG. 4 is a schematic diagram of various situations of an information transmission method according to an embodiment of the present application.
  • FIG. 5 is a schematic diagram of a GP position according to an embodiment of the present application.
  • FIG. 6 is a schematic diagram of GP positions, CP extensions, and AGC positions according to an embodiment of the present application
  • FIG. 7 is a schematic diagram of GP positions, CP extensions, and AGC positions according to an embodiment of the present application.
  • FIG. 8 is a schematic diagram of a resource detection location according to an embodiment of the present application.
  • FIG. 9 is a schematic structural diagram of an information transmission device according to an embodiment of the present application.
  • FIG. 10 is a schematic structural diagram of a communication device according to an embodiment of the present application.
  • Fig. 11 is a schematic structural diagram of a terminal according to an embodiment of the present application.
  • first, second and the like in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific sequence or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or described herein and that "first" and “second” distinguish objects. It is usually one category, and the number of objects is not limited. For example, there may be one or more first objects.
  • “and/or” in the description and claims means at least one of the connected objects, and the character “/” generally means that the related objects are an "or” relationship.
  • LTE Long Term Evolution
  • LTE-Advanced LTE-Advanced
  • LTE-A Long Term Evolution-Advanced
  • CDMA Code Division Multiple Access
  • TDMA Time Division Multiple Access
  • FDMA Frequency Division Multiple Access
  • OFDMA Orthogonal Frequency Division Multiple Access
  • SC-FDMA Single-carrier Frequency Division Multiple Access
  • system and “network” in the embodiments of the present application are often used interchangeably, and the described technology can be used for the above-mentioned system and radio technology, and can also be used for other systems and radio technologies.
  • NR New Radio
  • the following description describes the New Radio (NR) system for illustrative purposes, and uses NR terminology in most of the following descriptions, but these techniques can also be applied to applications other than NR system applications, such as the 6th generation (6 th Generation, 6G) communication system.
  • 6G 6th Generation
  • Fig. 1 shows a block diagram of a wireless communication system to which the embodiment of the present application is applicable.
  • the wireless communication system includes a terminal 11 and a network side device 12 .
  • the terminal 11 can be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer) or a notebook computer, a personal digital assistant (Personal Digital Assistant, PDA), a palmtop computer, a netbook, a super mobile personal computer (ultra-mobile personal computer, UMPC), mobile Internet device (Mobile Internet Device, MID), augmented reality (augmented reality, AR) / virtual reality (virtual reality, VR) equipment, robot, wearable device (Wearable Device) , vehicle equipment (VUE), pedestrian terminal (PUE), smart home (home equipment with wireless communication functions, such as refrigerators, TVs, washing machines or furniture, etc.), game consoles, personal computers (personal computers, PCs), teller machines or self-service Wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (
  • the network side device 12 may include an access network device or a core network device, wherein the access network device may also be called a radio access network device, a radio access network (Radio Access Network, RAN), a radio access network function, or a wireless access network unit.
  • RAN Radio Access Network
  • the access network equipment may include a base station, a wireless local area network (Wireless Local Area Network, WLAN) access point or a wireless fidelity (Wireless Fidelity, WiFi) node, etc.
  • the base station may be called a node B, an evolved node B (eNB), an access network Access Point, Base Transceiver Station (BTS), Radio Base Station, Radio Transceiver, Basic Service Set (BSS), Extended Service Set (ESS), Home Node B, Home Evolution Type B node, Transmitting Receiving Point (Transmitting Receiving Point, TRP) or some other suitable term in the field, as long as the same technical effect is achieved, the base station is not limited to specific technical terms. It should be noted that in this application In the embodiment, only the base station in the NR system is used as an example for introduction, and the specific type of the base station is not limited.
  • the embodiment of the present application provides an information transmission method 200 on a shared frequency band (shared band).
  • the method can be executed by a terminal.
  • the method can be executed by software or hardware installed in the terminal.
  • the method includes the following steps.
  • the terminal On the shared frequency band, the terminal transmits information on a side link (SideLink, SL); wherein, the transmission information includes at least one of the following: receiving information, sending information, performing channel detection, and performing SL channel access.
  • SideLink Side Link
  • the shared frequency band (shared band) mentioned in various embodiments of the present application may include an unlicensed frequency band.
  • the terminal may be a transmitting terminal (TX UE), a receiving terminal (RX UE) or a scheduling terminal (scheduling UE).
  • the information transmitted by the terminal on SL includes, for example: control information, data information, feedback information, synchronization information, reference signal, discovery information and so on.
  • the above information can be transmitted through the SL channel.
  • the SL channel includes, for example: Physical Sidelink Control Channel (Physical Sidelink Control Channel, PSCCH), Physical Sidelink Shared Channel (Physical Sidelink Shared Channel, PSSCH), Physical Sidelink Feedback Channel (Physical Sidelink Feedback Channel, PSFCH), Physical Sidelink Broadcast Channel (Physical Sidelink Broadcast Channel, PSBCH), Physical Sidelink Discovery Channel (Physical Sidelink Discovery Channel, PSDCH), etc.
  • the terminal receives information on the SL, and the terminal may be a receiving terminal.
  • the receiving terminal receives information from the sending terminal on the shared frequency band.
  • the receiving terminal has successfully accessed the shared frequency band, and the receiving terminal has obtained resources in the shared frequency band.
  • the terminal sends information on the SL, and the terminal may be a sending terminal.
  • the sending terminal sends information to the receiving terminal on the shared frequency band.
  • the sending terminal has successfully accessed the shared frequency band, and the sending terminal has obtained resources in the shared frequency band.
  • the terminal performs SL channel access in S202, wherein the SL channel access process may include: 1) The terminal performs channel detection, and according to the detection result, it is judged whether the shared frequency band can be used for terminal transmission, or It is whether it can be used for SL transmission, which can be considered as information reception or measurement; 2) If it is determined that the channel is available, then perform SL channel access on the shared frequency band, for example, the terminal judges whether there are SL resources in the shared frequency band , the terminal can detect according to the resource detection method introduced in the subsequent embodiments of the application.
  • the reception or measurement of the information here may include information on the SL channel, and may also include uplink (Uplink, UL)/downlink (Downlink, DL) information.
  • the terminal performs channel detection (which may also include signal detection), for example, the terminal performs detection or measurement on a certain resource to determine whether the channel or resource is idle.
  • channel detection which may also include signal detection
  • the four examples described above can be combined to form more embodiments, for example, the third example can be combined with the first example, the third example can be combined with the second example, and so on.
  • the terminal on the shared frequency band, can transmit information on the side link, and the transmission information can include at least one of the following: receiving information, sending information, performing channel detection, and performing SL channel access .
  • the embodiment of the present application solves the problem that the SL cannot be transmitted on the shared frequency band and affects the communication performance, which is beneficial to improve the performance of the communication system and the utilization rate of resources.
  • the terminal transmitting information on the SL mentioned in S202 may include: the terminal transmitting information on the SL according to indication information; wherein the indication information includes at least one of the following: scheduled resources; channel occupancy time ( Channel Occupancy Time, COT) information; remaining COT information; shared resources; detected resources; start position of time domain resources; end position of time domain resources; size or length of time domain resources; start position of frequency domain resources ;The end position of frequency domain resources; the size or length of frequency domain resources; Cyclic Prefix (CP) extension information; SL channel access type; Resource Block (Resource Block, RB) set; Interlace indication (Interlace indication); Remaining interlace indication.
  • the indication information includes at least one of the following: scheduled resources; channel occupancy time ( Channel Occupancy Time, COT) information; remaining COT information; shared resources; detected resources; start position of time domain resources; end position of time domain resources; size or length of time domain resources; start position of frequency domain resources ; The end position of frequency domain resources; the size or length of frequency domain resources;
  • the above indication information may be configured or indicated by the network side device or the scheduling terminal, and may also be predefined.
  • the scheduled resources; COT information; remaining COT information and shared resources, etc. may be indicated by the network side device or the scheduling terminal to the sending terminal for the sending terminal to perform SL channel access, wherein, the execution of S202
  • the subject may be the sending terminal; it may also be instructed by the sending terminal to the receiving terminal for the receiving terminal to access the SL channel, wherein the subject executing S202 may be the receiving terminal.
  • the start position of the time domain resource; the end position of the time domain resource; the size or length of the time domain resource; the start position of the frequency domain resource; the end position of the frequency domain resource and the size or length of the frequency domain resource etc. can be used for terminal information transmission in S202.
  • the CP extension information may be used to indicate the information of the CP extension, and the information of the CP extension includes, for example, the location and length of the CP extension.
  • the CP extension is used for the terminal to occupy the channel after successfully preempting the channel, avoiding resources being preempted by other terminals/user equipment (User Equipment, UE) or the system, and at the same time, it can realize slot based transmission or time-based Sub-slot (mini-slot) transmission.
  • the SL channel access type includes, for example, type 1 SL channel access procedure (type 1 SL channel access procedure), type 2A SL channel access procedure (type 2A SL channel access procedure), type 2B SL channel access procedure (type 2B SL channel access procedure), type 2C SL channel access procedure (type 2C SL channel access procedure), etc.
  • the RB set, the interlace indication and the remaining interlace indication may all be frequency domain resource indications.
  • the indication information mentioned in the foregoing embodiments may be carried by at least one of the following messages or signaling: first-level sidelink control information (Sidelink Control Information, SCI); second-level SCI; downlink control Information (Downlink Control Information, DCI); Media Access Control Element (Media Access Control Element, MAC CE); Radio Resource Control (Radio Resource Control, RRC) message.
  • first-level sidelink control information SCI
  • second-level SCI downlink control Information
  • Downlink Control Information Downlink Control Information
  • DCI Downlink Control Information
  • DCI Downlink Control Information
  • Media Access Control Element Media Access Control Element
  • MAC CE Media Access Control Element
  • RRC Radio Resource Control
  • the RRC message includes the information configured by the base station, and also includes the PC5-RRC information configured by the UE.
  • the above-mentioned first-level SCI can be format 1-A SCI (SCI format 1-A), and can also be a newly defined first-level SCI format.
  • the above-mentioned second-level SCI can be format 2-A SCI (SCI format 2-A) or format 2-B SCI (SCI format 2-B), and can also be a newly defined second-level SCI format.
  • the terminal may also receive at least one of the foregoing messages or signaling.
  • the above indication information may be configured or indicated by at least one of the sending terminal, the scheduling terminal, or the network side device, and may also be predefined.
  • the sending terminal sends the shared COT information to the receiving terminal, and the receiving terminal performs Clear Channel Assessment (CCA) according to the COT indicated by the COT information to determine whether the indicated COT is available.
  • CCA Clear Channel Assessment
  • the scheduling terminal (Scheduling UE) sends COT information to the sending terminal, and the sending terminal performs CCA according to the indicated COT to determine whether the indicated COT is available.
  • the indication information includes the CP extension information
  • the method further includes: the terminal determines CP extension information according to the CP extension information, and the CP extension
  • the information may include the length and location of the CP extension, and the length of the CP extension mentioned here may include the duration or range of the CP extension.
  • the above CP extension information may indicate a range of K symbols, and/or, the duration T_ext of the CP extension is determined according to at least one of the configured, indicated or predefined number of symbols L and the duration Gap of the guard time interval, K is a non-negative integer.
  • the above-mentioned CP extension information may indicate a range of 0 to 14 symbols.
  • the range indicated by the CP extension information is 0 symbols, it means that there is no CP extension; when the range indicated by the CP extension information is 14 symbols, the boundary alignment at the slot level can be realized.
  • symbol_length is the duration of a symbol, which is related to the configuration of the SCS.
  • T_sensing is the duration of Listen Before Talk (LBT), which may be 16 ⁇ s or 25 ⁇ s, or may be determined according to the type of channel access process, which can be determined according to the predefined, configured or indicated SL channel access method .
  • LBT Listen Before Talk
  • the duration Gap of the above guard time interval can be 13 ⁇ s, or 7 ⁇ s or 8 ⁇ s, which can be determined according to the frequency band of the terminal. For example, if the frequency band of the terminal is FR 2, the duration Gap of the guard time interval is 7 ⁇ s or 8 ⁇ s.
  • the duration of the guard interval is subtracted when calculating the duration of the CP extension, which is beneficial for the terminal (sensing UE) to have sufficient time between receiving and sending (RX->TX). Switching at intervals avoids communication problems caused by untimely switching, which is conducive to improving communication performance.
  • the terminals mentioned in the foregoing embodiments transmit information on the SL according to the indication information.
  • the indication information indicates or allocates M transmission resources for the terminal.
  • the M transmission resources are not necessarily all used for the information transmission, but are allocated to the terminal, so the terminal can further determine resources for transmitting SL information from the M resources. For example: if M resources are allocated to the UE (the M resources can be continuous or discontinuous resources), the UE performs the SL channel access process on the M resources. If the access is successful, the UE can transmit SL on the M resources.
  • the UE can access the resources from the M1+1th to the Mth resource Transmit SL information.
  • This embodiment considers that after the terminal successfully accesses the SL channel, information can be sent/received according to some predefined rules/information.
  • the main consideration here is the slot level transmission (slot level transmission), and the type 2 bypass channel access (type 2 SL channel access), and then determine how to perform resource mapping based on GP/AGC.
  • the resource transmitted by the terminal on the SL satisfies at least one of the following 1) to 3) one:
  • the terminal determines the location of the resource mapping according to a preset rule or a first parameter.
  • the foregoing preset rule may be used to determine the location of the resource mapping, and the preset rule may be predefined or configured or indicated by the network side device, or configured or indicated by the UE.
  • the location information of the resource mapping includes at least one of the following: a start location, an end location, and a resource length.
  • the first parameter includes at least one of the following: source address identification (Source ID); destination address identification (Destination ID); group identification (Group ID); transmission type (such as unicast, multicast or broadcast) ; SubCarrier Spacing (SCS); Quality of Service (QoS); Channel Access Priority Class (CAPC).
  • Source ID source address identification
  • Destination ID destination address identification
  • Group ID group identification
  • transmission type such as unicast, multicast or broadcast
  • SCS SubCarrier Spacing
  • QoS Quality of Service
  • CAC Channel Access Priority Class
  • the terminal determines F interleaving resources according to the interleaving indication in the indication information, where F is a positive integer.
  • This embodiment considers using interleaving resources to meet the Occupy Channel Bandwidth (OCB) requirement in the frequency domain.
  • OBC Occupy Channel Bandwidth
  • the interleaving indication satisfies at least one of the following a to d:
  • the interleaving indication indicates the F interleaving resources in a bitmap manner.
  • the interleaving indication is X bits, X is a bitmap (bitmap) indicating F interleaving resources, and X is a positive integer.
  • the interleaving indication includes an index of a starting interleaving resource.
  • the interleaving indication includes an index of an end interleaving resource.
  • the interleaving indication includes the quantity of the interleaving resources.
  • the interleaving indication includes an index of a starting interleaving resource and the quantity of the interleaving resource. This example can be indicated by a resource indication value (Resource Indication Value, RIV), indicating that the overhead is smaller.
  • RIV Resource Indication Value
  • the interleaving indication includes an index of a starting interleaving resource and an index of an ending interleaving resource.
  • the terminal performs resource mapping according to configuration, instruction or predefined resource mapping manner.
  • the resource mapping method includes at least one of the following a to c:
  • T and/or F are configured, indicated or predefined positive integers.
  • T and/or F are configured, indicated or predefined positive integers.
  • a mapping manner of first time domain resources or first frequency domain resources determined according to the first condition may be used to determine the mapping manner, and the first condition may be predefined or configured or indicated by the network side device, or configured or indicated by the UE.
  • the location of the resource mapping includes the starting location, the starting location is determined according to the preset rule, and the information transmitted by the terminal on the SL includes at least one of the following:
  • the SL information is mapped from the second symbol of the transmission resource, and/or, the information of the first symbol is the repetition of the information of the second symbol Or the information of the second half symbol of the first symbol is partially repeated for the information of the second symbol.
  • the SL information is mapped from the first symbol of the transmission resource.
  • the SL information mentioned in various embodiments of the present application includes, for example, PSCCH, PSSCH, Reference Signal (Reference Signal, RS), etc., which may specifically be the information transmitted in S202.
  • the location of the resource mapping includes the starting location, the starting location is determined according to the first parameter, and the information transmitted by the terminal on the SL includes at least one of the following:
  • the information of the first symbol is the repetition of the second symbol or the information of the second half of the symbol in the first symbol is the second symbol Partial repetition of symbols. In this example, there is no AGC symbol in the 2nd to M transmission resources.
  • the information of the first symbol is the repetition of the second symbol or the information in the first symbol The information for the second half of the symbol is partially repeated for the second symbol.
  • the information of the second half symbol in the first symbol is a partial repetition of the information of the second symbol.
  • the AGC is half a symbol, and resources are reserved for LBT+GP.
  • the position of the resource mapping includes the end position, the end position is determined according to the preset rule, and the information transmitted by the terminal on the SL includes at least one of the following:
  • the SL information is mapped to the last symbol or the N1th symbol of the transmission resource.
  • the SL information is mapped to the penultimate symbol or the (N 1 -1)th symbol of the transmission resource; N 1 is a positive integer, and N 1 can be is 14.
  • GP symbols exist in the Mth transmission resource.
  • the position of the resource mapping includes the end position, the end position is determined according to the first parameter, and the information transmitted by the terminal on the SL satisfies: if the source address identifiers of multiple transmissions are the same, then There is a GP in the last symbol of the M-th transmission resource, or in the last transmission. In this example, there is no GP symbol in the first M-1 transmission resources, and the last symbol of the last transmission is the GP symbol.
  • the terminal performing SL channel access on the SL mentioned in each of the foregoing embodiments includes: the terminal performing channel detection; wherein, the resource location where the terminal performs channel detection satisfies at least one of the following:
  • the terminal starts detection at the starting position of the previous time unit of the indicated resource.
  • the terminal starts detection after shifting a time unit backward from the starting position of the indicated resource in the previous time unit.
  • the terminal shifts b time units forward to start detection at the end position of the previous time unit of the indicated resource.
  • the terminal starts detection at a position shifted forward by c time units from the starting position of the indicated resource.
  • a, b and c are positive integers.
  • time unit mentioned in various embodiments of the present application may be: time slot, symbol, frame, subframe, millisecond, second, and so on.
  • the terminal determines the location for resource detection according to the resource information indicated by the indication information (such as remaining COT information, COT information, RB set, and remaining interlace indication).
  • the indication information such as remaining COT information, COT information, RB set, and remaining interlace indication.
  • the terminal can determine the position of type 2 (type 2) resource detection, considering that the transmission interval within the COT is ⁇ 16 ⁇ s, and the COT will not be lost; considering that the gap meets the conversion requirement of 13 ⁇ s/7 ⁇ s.
  • This embodiment mainly introduces the instruction of COT or LBT (Listen Before Talk).
  • the sending terminal or the scheduling terminal sends SCI (such as 1st SCI/2nd SCI)), and the SCI includes indication information indicating remaining COT information, RB set, remaining interleaving indication, and the like.
  • SCI such as 1st SCI/2nd SCI
  • the terminal performs SL channel access to the indicated time-frequency resources according to the remaining COT information indicated in the monitored and detected SCI, RB set, remaining interleaving indication, etc.
  • the terminal can perform channel monitoring of Cat 2 25 ⁇ s/Cat 2 16 ⁇ s/Cat 4/Cat 1 LBT (corresponding to detection methods of different types of channel access procedures).
  • the sending terminal or the scheduling terminal uses the 1st SCI to send the above indication information, where the 1st SCI carries the remaining COT information and RB set.
  • the indication information is coded jointly with the reserved resource indication; or, the indication information is an independent indication.
  • This embodiment mainly introduces the indication of CP extension information.
  • the sending terminal indicates the CP extension information in the SCI
  • the receiving terminal determines the length of the CP extension and the start position of the time slot or data transmission according to the CP extension information.
  • the range of CP extension is 0-M, where M is a predefined or configured parameter.
  • M is a configuration related to the SCS.
  • the range of optional values of the CP extension is shown in FIG. 3 , and the vertical arrow in FIG. 3 indicates the position where the channel access is successful.
  • the CP is extended to half a symbol; in the third row of Figure 3, the CP is extended to 6.5 symbols.
  • the purpose of CP extension is to achieve slot boundary (slot boundary) alignment.
  • the terminal applies the CP extension to the channel for the first time, and does not apply the CP extension in subsequent transmissions, so that time slot boundary alignment can be achieved.
  • This embodiment can be introduced in the following situations.
  • the sending terminal transmits M consecutive times, and the source address (source UE) of the M transmissions is the same as the destination address (destination UE).
  • the PSSCH is mapped from the second symbol of the starting position of the SL resource; the PSSCH is mapped to the last symbol of the SL resource/to the last symbol of the slot.
  • the first symbol is the repetition of the second symbol. That is, there is an AGC in the first time slot (slot).
  • PSSCH is mapped from the first symbol of the slot (without AGC), and PSSCH is mapped to the last symbol of the slot, that is, there is no AGC in 2 ⁇ (M-1) slots and GP.
  • the PSSCH is mapped from the first symbol of the slot, the PSSCH is mapped to the 13th symbol of the slot, the last symbol of the slot is a guard interval symbol, and the last slot exists in the GP.
  • This embodiment is more suitable for continuous transmission between a pair of terminals.
  • the sending terminal transmits M consecutive times, the source address (source UE) of the M transmissions is the same, and the destination address (destination UE) is different.
  • the structure and resource mapping method can be the same as case 1.
  • the second slot assumes that the transmitting terminal does not perform power adjustment, which has no effect on the reception of other terminals in the system. However, if the receiving terminal does not perform AGC, the receiving terminal may not be able to demodulate due to excessive or low power.
  • the second slot assumes that the transmitting terminal performs power adjustment, if there are other terminals that are multiplexed with the UE in Frequency Division Multiplexing (FDM), other terminals do not have AGC to adjust the time, which will cause near-far effects and cannot receive signals correctly , for the receiving end without AGC adjustment time, demodulation may not be possible.
  • FDM Frequency Division Multiplexing
  • the second slot does not perform AGC adjustment, which may cause the PRR of the SL system to decrease.
  • the sending terminal transmits M consecutive times, the source address (source UE) of the M transmissions is the same, and the destination address (destination UE) is different.
  • the PSSCH is mapped from the second symbol of the starting position of the SL resource; the PSSCH is mapped to the last symbol of the SL resource/to the last symbol of the slot.
  • the first symbol is the repetition of the second symbol, that is, the AGC exists in the first slot.
  • the PSSCH is mapped from the second symbol of the slot (there is an AGC of 1 symbol), and the PSSCH is mapped To the last symbol of the slot, 2 ⁇ (M-1) slots have AGC, and there is no GP).
  • the PSSCH is mapped from the first symbol of the slot, the PSSCH is mapped to the 13th symbol of the slot, and the last symbol of the slot is a guard interval symbol, that is, there is a GP in the last slot.
  • This embodiment can improve the PRR of the SL system.
  • the sending terminal detection occupies N resources, the first M transmissions are sending information, and the last (N-M) resources are shared with other terminals, for example, shared with the receiving terminal for sending information by the receiving terminal.
  • the sending terminal transmits information according to the foregoing case 1 or case 2.
  • the receiving terminal receives information according to the above case 1 or case 2.
  • the receiving terminal performs the type 2A SL channel access process according to the predefined/configuration/indication information. If successful, the PSSCH of the receiving terminal starts to be mapped from the second symbol of the Mth slot, and the first symbol is a repetition of the second symbol.
  • the channel access time is located in the last GP and shares a symbol with GP.
  • the other terminals are not the receiving terminals corresponding to the first slot.
  • one symbol is 72 ⁇ s. It is enough for GP to share a symbol with type 2A channel access. At 30kHz, type 2A channel access takes 25 ⁇ s, and the remaining time in this symbol is 11 ⁇ s.
  • FR 1 the receiving terminal cannot switch from the receiving state to the sending state.
  • FR 2 the receiving terminal can switch from the receiving state to the sending state.
  • This embodiment can be introduced in the following two cases.
  • the pre-definition/configuration/indication is the AGC of 1 symbol, or the first symbol of the slot is the repetition of the second symbol.
  • the terminal performs a type 2 channel access procedure (type 2A channel access procedure) in the previous symbol of the indicated slot.
  • the terminal transmits the CP extension according to predefined/configured/indicated information.
  • the CP extension is to ensure that the channel is preempted after the CCA access is successful.
  • the terminal does not transmit information after LBT. There is a >25 ⁇ s interval where a channel may be lost and retesting is required.
  • the remaining time of 1 symbol except LBT is 47 ⁇ s, which can meet the requirements of TX (Transmit)/RX (Receive) switching.
  • the remaining time is 11 ⁇ s, which does not meet the requirements of TX/RX switching under FR 1.
  • the 4 ⁇ s idle in the last sensing slot (the sensing slot defined in LBT is 9 ⁇ s) is located in the first 4 ⁇ s of the sensing slot, then the last 5 ⁇ s of the LBT can be used for transceiver conversion , can meet the demand of 13 ⁇ s switching time.
  • Case B 30kHz, AGC of half a symbol.
  • the pre-definition/configuration/indication is the AGC of half a symbol, or the second half of the first symbol of the slot is the repetition of the second symbol.
  • the terminal performs a type 2 channel access procedure (type 2A channel access procedure) in the previous symbol of the indicated slot.
  • the terminal transmits the CP extension according to predefined/configured/indicated information.
  • the CP extension is to ensure that the channel is preempted after the CCA access is successful.
  • the terminal does not transmit information after LBT. There is a >25 ⁇ s interval where a channel may be lost and retesting is required.
  • the PSSCH is mapped from the second symbol of the indicated resource; the second half of the first symbol of the indicated resource is the repetition of part of the information of the second symbol in the indicated resource.
  • This embodiment mainly introduces the selection of the position of type 2 monitoring (type 2 sensing).
  • the terminal executes a type 2 channel access procedure (may include type 2A/type 2B/type 2C channel access) in the last symbol indicating the resource.
  • a type 2 channel access procedure may include type 2A/type 2B/type 2C channel access
  • the terminal starts channel access at the starting position of the last symbol.
  • the terminal performs channel access after shifting a time unit after the start position of the last symbol.
  • the terminal performs channel access b time units before the end position of the last symbol/before the start position of the indicated resource.
  • the information transmission method provided in the embodiment of the application may be executed by an information transmission device.
  • the information transmission device provided in the embodiment of the present application is described by taking the information transmission device executing the information transmission method as an example.
  • Fig. 9 is a schematic structural diagram of an information transmission device according to an embodiment of the present application, and the device may correspond to a terminal in other embodiments. As shown in FIG. 9 , the device 900 includes the following modules.
  • the communication module 902 may be configured to transmit information on SL on the shared frequency band; wherein, the transmission information includes at least one of the following: receiving information, sending information, performing channel detection, and performing SL channel access.
  • the apparatus 900 further includes a processing module, such as a processor.
  • a processing module such as a processor.
  • the communication module can transmit information on the side link, and the transmission information can include at least one of the following: receiving information, sending information, performing channel detection, and performing SL channel access.
  • the embodiment of the present application solves the problem that the SL cannot be transmitted on the shared frequency band and affects the communication performance, which is beneficial to improve the performance of the communication system and the utilization rate of resources.
  • the communication module 902 is configured to transmit information on the SL according to the indication information; wherein the indication information includes at least one of the following: scheduled resources; COT information; remaining COT information; shared resource; detected resource; start position of time domain resource; end position of time domain resource; size or length of time domain resource; start position of frequency domain resource; end position of frequency domain resource; size of frequency domain resource or length; CP extension information; SL channel access type; RB set; interleaving indication; remaining interleaving indication.
  • the indication information is carried by at least one of the following: first-level SCI; second-level SCI; DCI; MAC CE; RRC message.
  • the indication information includes the CP extension information
  • the device further includes a processing module configured to determine CP extension information according to the CP extension information; wherein, the CP extension information indicates The range of is K symbols, and/or, the duration T_ext of the CP extension is determined according to at least one of the configured, indicated or predefined symbol number L and the duration Gap of the guard time interval, K is a non-negative integer.
  • the resources transmitted by the communication module 902 on the SL satisfy at least one of the following One: Determine the location of resource mapping according to preset rules or first parameters; determine F interleaving resources according to the interleaving indication in the indication information, where F is a positive integer; perform resource mapping according to configuration, indication or predefined resource mapping methods.
  • the location information of the resource mapping includes at least one of the following: start location, end location, resource length; the first parameter includes at least one of the following: source address identifier; destination address identifier ;Group ID;Transport Type;SCS;QoS;CAPC.
  • the location of the resource mapping includes the starting location, the starting location is determined according to the preset rule, and the communication module 902 is configured to at least one of the following: 1) In the first transmission resource, the SL information is mapped from the second symbol of the transmission resource, and/or, the information of the first symbol is the repetition of the information of the second symbol or the second half of the first symbol The information of is the partial repetition of the information of the second symbol; 2) In the 2nd to M transmission resources, the SL information is mapped from the first symbol of the transmission resource.
  • the location of the resource mapping includes the starting location, the starting location is determined according to the first parameter, and the communication module 902 is configured to at least one of the following: 1) If the destination address identifiers of multiple transmissions are the same, only in the first transmission, the information of the first symbol is the repetition of the second symbol or the information of the second half symbol in the first symbol is the second symbol 2) If the destination address identifiers of multiple transmissions are different, then in the first resource unit of the transmission resources corresponding to different destination address identifiers, the information of the first symbol is the repetition of the second symbol or the first The information of the second half symbol in a symbol is partly repeated for the second symbol; 3) if the SCS is the first SCS, the information of the second half symbol in the first symbol is part of the information of the second symbol repeat.
  • the position of the resource mapping includes the end position, the end position is determined according to the preset rule, and the communication module 902 is configured to at least one of the following: 1) the preceding Among the M-1 transmission resources, the SL information is mapped to the last symbol or the N1th symbol of the transmission resource; 2) In the M-th transmission resource or the last transmission resource, the SL information is mapped to the penultimate of the transmission resources symbols or N 1 -1th symbols; N 1 is a positive integer.
  • the position of the resource mapping includes the end position, and the end position is determined according to the first parameter; wherein, if the source address identifiers of multiple transmissions are the same, the Mth The last symbol of the transmission resource, or there is a guard interval GP in the last transmission.
  • the interleaving indication satisfies at least one of the following: 1) the interleaving indication indicates the F interleaving resources in the form of a bitmap; 2) the interleaving indication includes the starting interleaving resource Index; 3) the interleaving indication includes the index of the end interleaving resource; 4) the interleaving indication includes the quantity of the interleaving resource.
  • the resource mapping method includes at least one of the following: 1) a mapping method of T time domain resources first and then F frequency domain resources; 2) F frequency domain resources first and then T time domain resources A mapping method of domain resources; 3) a mapping method of first time domain resources or first frequency domain resources determined according to the first condition; wherein, T and/or F are configured, indicated or predefined positive integers.
  • the communication module 902 is configured to perform channel detection; wherein, the resource location where the communication module performs channel detection satisfies at least one of the following: 1) In the previous time unit of the indicated resource 2) Start detection at the start position of the previous time unit of the indicated resource backward by a time unit; 3) Move forward at the end position of the previous time unit of the indicated resource 4) Start detection at a position shifted forward by c time units from the starting position of the indicated resource; wherein, a, b and c are positive integers.
  • the device 900 according to the embodiment of the present application can refer to the process of the method 200 corresponding to the embodiment of the present application, and each unit/module in the device 900 and the above-mentioned other operations and/or functions are respectively in order to realize the corresponding process in the method 200, And can achieve the same or equivalent technical effect, for the sake of brevity, no more details are given here.
  • the information transmission apparatus in the embodiment of the present application may be an electronic device, such as an electronic device with an operating system, or a component in the electronic device, such as an integrated circuit or a chip.
  • the electronic device may be a terminal, or other devices other than the terminal.
  • the terminal may include, but not limited to, the types of terminal 11 listed above, and other devices may be servers, Network Attached Storage (NAS), etc., which are not specifically limited in this embodiment of the present application.
  • NAS Network Attached Storage
  • the information transmission device provided in the embodiment of the present application can realize each process realized by the method embodiments in FIG. 2 to FIG. 7 , and achieve the same technical effect. To avoid repetition, details are not repeated here.
  • this embodiment of the present application also provides a communication device 1000, including a processor 1001 and a memory 1002, and the memory 1002 stores programs or instructions that can run on the processor 1001, such as , when the communication device 1000 is a terminal, when the program or instruction is executed by the processor 1001, each step of the above information transmission method embodiment can be achieved, and the same technical effect can be achieved. To avoid repetition, details are not repeated here.
  • the embodiment of the present application also provides a terminal, including a processor and a communication interface, the communication interface is used to transmit information on the side link on the shared frequency band, and the transmission information may include at least one of the following: receiving information, sending information, Perform channel detection and SL channel access.
  • This terminal embodiment corresponds to the above-mentioned terminal-side method embodiment, and each implementation process and implementation mode of the above-mentioned method embodiment can be applied to this terminal embodiment, and can achieve the same technical effect.
  • FIG. 11 is a schematic diagram of a hardware structure of a terminal implementing an embodiment of the present application.
  • the terminal 1100 includes, but is not limited to: a radio frequency unit 1101, a network module 1102, an audio output unit 1103, an input unit 1104, a sensor 1105, a display unit 1106, a user input unit 1107, an interface unit 1108, a memory 1109, and a processor 1110. At least some parts.
  • the terminal 1100 may also include a power supply (such as a battery) for supplying power to various components, and the power supply may be logically connected to the processor 1110 through the power management system, so as to manage charging, discharging, and power consumption through the power management system. Management and other functions.
  • a power supply such as a battery
  • the terminal structure shown in FIG. 11 does not constitute a limitation on the terminal, and the terminal may include more or fewer components than shown in the figure, or combine some components, or arrange different components, which will not be repeated here.
  • the input unit 1104 may include a graphics processing unit (Graphics Processing Unit, GPU) 11041 and a microphone 11042, and the graphics processor 11041 is used in a video capture mode or an image capture mode by an image capture device (such as the image data of the still picture or video obtained by the camera) for processing.
  • the display unit 1106 may include a display panel 11061, and the display panel 11061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like.
  • the user input unit 1107 includes at least one of a touch panel 11071 and other input devices 11072 .
  • Touch panel 11071 also called touch screen.
  • the touch panel 11071 may include two parts, a touch detection device and a touch controller.
  • Other input devices 11072 may include, but are not limited to, physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, and joysticks, which will not be repeated here.
  • the radio frequency unit 1101 may transmit the downlink data from the network side device to the processor 1110 for processing after receiving it; in addition, the radio frequency unit 1101 may send uplink data to the network side device.
  • the radio frequency unit 1101 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.
  • the memory 1109 can be used to store software programs or instructions as well as various data.
  • the memory 1109 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, an application program or instructions required by at least one function (such as a sound playing function, image playback function, etc.), etc.
  • memory 1109 may include volatile memory or nonvolatile memory, or, memory 1109 may include both volatile and nonvolatile memory.
  • the non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electronically programmable Erase Programmable Read-Only Memory (Electrically EPROM, EEPROM) or Flash.
  • ROM Read-Only Memory
  • PROM programmable read-only memory
  • Erasable PROM Erasable PROM
  • EPROM erasable programmable read-only memory
  • Electrical EPROM Electrical EPROM
  • EEPROM electronically programmable Erase Programmable Read-Only Memory
  • Volatile memory can be random access memory (Random Access Memory, RAM), static random access memory (Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), synchronous dynamic random access memory (Synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (Double Data Rate SDRAM, DDRSDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous connection dynamic random access memory (Synch link DRAM , SLDRAM) and Direct Memory Bus Random Access Memory (Direct Rambus RAM, DRRAM).
  • RAM Random Access Memory
  • SRAM static random access memory
  • DRAM dynamic random access memory
  • DRAM synchronous dynamic random access memory
  • SDRAM double data rate synchronous dynamic random access memory
  • Double Data Rate SDRAM Double Data Rate SDRAM
  • DDRSDRAM double data rate synchronous dynamic random access memory
  • Enhanced SDRAM, ESDRAM enhanced synchronous dynamic random access memory
  • Synch link DRAM , SLDRAM
  • Direct Memory Bus Random Access Memory Direct Rambus
  • the processor 1110 may include one or more processing units; optionally, the processor 1110 integrates an application processor and a modem processor, wherein the application processor mainly processes operations related to the operating system, user interface, and application programs, etc., Modem processors mainly process wireless communication signals, such as baseband processors. It can be understood that the foregoing modem processor may not be integrated into the processor 1110 .
  • the radio frequency unit 1101 can be used to transmit information on the side link in the shared frequency band, and the transmission information can include at least one of the following: receiving information, sending information, performing channel detection, and performing SL channel access.
  • the terminal may transmit information on the side link, and the transmission information may include at least one of the following: receiving information, sending information, performing channel detection, and performing SL channel access.
  • the embodiment of the present application solves the problem that the SL cannot be transmitted on the shared frequency band and affects the communication performance, which is beneficial to improve the performance of the communication system and the utilization rate of resources.
  • the terminal 1100 provided in the embodiment of the present application can also implement the various processes of the information transmission method embodiment described above, and can achieve the same technical effect. To avoid repetition, details are not repeated here.
  • the embodiment of the present application also provides a readable storage medium, the readable storage medium stores a program or an instruction, and when the program or instruction is executed by a processor, each process of the above-mentioned information transmission method embodiment is realized, and the same To avoid repetition, the technical effects will not be repeated here.
  • the processor is the processor in the terminal described in the foregoing embodiments.
  • the readable storage medium includes a computer-readable storage medium, such as a computer read-only memory ROM, a random access memory RAM, a magnetic disk or an optical disk, and the like.
  • the embodiment of the present application further provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the above information transmission method embodiment
  • the chip includes a processor and a communication interface
  • the communication interface is coupled to the processor
  • the processor is used to run programs or instructions to implement the above information transmission method embodiment
  • the chip mentioned in the embodiment of the present application may also be called a system-on-chip, a system-on-chip, a system-on-a-chip, or a system-on-a-chip.
  • the embodiment of the present application further provides a computer program/program product, the computer program/program product is stored in a storage medium, and the computer program/program product is executed by at least one processor to implement the above information transmission method embodiment
  • a computer program/program product is stored in a storage medium
  • the computer program/program product is executed by at least one processor to implement the above information transmission method embodiment
  • the embodiment of the present application also provides an information transmission system, including: a terminal and a network side device, and the terminal can be used to execute the steps of the above information transmission method.
  • the term “comprising”, “comprising” or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or apparatus comprising a set of elements includes not only those elements, It also includes other elements not expressly listed, or elements inherent in the process, method, article, or device. Without further limitations, an element defined by the phrase “comprising a " does not preclude the presence of additional identical elements in the process, method, article, or apparatus comprising that element.
  • the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved. Functions are performed, for example, the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
  • the methods of the above embodiments can be implemented by means of software plus a necessary general-purpose hardware platform, and of course also by hardware, but in many cases the former is better implementation.
  • the technical solution of the present application can be embodied in the form of computer software products, which are stored in a storage medium (such as ROM/RAM, magnetic disk, etc.) , CD-ROM), including several instructions to make a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) execute the methods described in the various embodiments of the present application.

Abstract

本申请实施例公开了一种信息传输方法及设备，属于通信技术领域。本申请实施例的信息传输方法包括：在共享频段上，终端在SL上传输信息；其中，所述传输信息包括如下至少之一：接收信息，发送信息，进行信道检测，进行SL信道接入。

Description

信息传输方法及设备
相关申请的交叉引用
本申请要求在2021年11月30日提交的中国专利申请第202111447735.5号的优先权，该中国专利申请的全部内容通过引用包含于此。
技术领域
本申请属于通信技术领域，具体涉及一种信息传输方法及设备。
背景技术
长期演进(Long Term Evolution，LTE)系统从第12个发布版本开始支持旁链路(SideLink，SL)，用于终端之间不通过网络设备进行直接数据传输。
在未来通信系统中，共享频段例如非授权频段(unlicensed band)可以作为授权频段(licensed band)的补充帮助运营商对服务进行扩容。
如果SL在共享频段上传输，则需要满足共享频段上的规则限制，然而，相关技术中并没有提供SL在共享频段上传输的技术方案，影响通信性能。
发明内容
本申请实施例提供一种信息传输方法及设备，能够解决SL无法在共享频段上传输而影响通信性能的问题。
第一方面，提供了一种信息传输方法，包括：在共享频段上，终端在SL上传输信息；其中，所述传输信息包括如下至少之一：接收信息，发送信息，进行信道检测，进行SL信道接入。
第二方面，提供了一种信息传输装置，包括：通信模块，用于在共享频段上，在SL上传输信息；其中，所述传输信息包括如下至少之一：接收信息，发送信息，进行信道检测，进行SL信道接入。
第三方面，提供了一种终端，该终端包括处理器和存储器，所述存储器存储可在所述处理器上运行的程序或指令，所述程序或指令被所述处理器执行时实现如第一方面所述的方法的步骤。
第四方面，提供了一种终端，包括处理器及通信接口，其中，所述通信接口用于在共享频段上，在SL上传输信息；其中，所述传输信息包括如下至少之一：接收信息，发送信息，进行信道检测，进行SL信道接入。
第五方面，提供了一种信息传输系统，包括：终端及网络侧设备，所述终端可用于执行如第一方面所述的方法的步骤。
第六方面，提供了一种可读存储介质，所述可读存储介质上存储程序或指令，所述程序或指令被处理器执行时实现如第一方面所述的方法的步骤。
第七方面，提供了一种芯片，所述芯片包括处理器和通信接口，所述通信接口和所述处理器耦合，所述处理器用于运行程序或指令，实现如第一方面所述的方法的步骤。
第八方面，提供了一种计算机程序/程序产品，所述计算机程序/程序产品被存储在存储介质中，所述计算机程序/程序产品被至少一个处理器执行以实现如第一方面所述的方法的步骤。
本申请实施例提供的信息传输方法，在共享频段上，终端可以在旁链路上传输信息，该传输信息可以包括如下至少之一：接收信息，发送信息，进行信道检测，进行SL信道接入。本申请实施例解决SL无法在共享频段上传输而影响通信性能的问题，有利于提高通信系统性能，提高资源利用率。
附图说明
图1是根据本申请实施例的无线通信系统的示意图；
图2是根据本申请实施例的信息传输方法的示意性流程图；
图3是根据本申请实施例的CP扩展示意图；
图4是根据本申请实施例的信息传输方法的各种情况示意图；
图5是根据本申请实施例的GP位置示意图；
图6是根据本申请实施例的GP位置，CP扩展，AGC位置示意图；
图7是根据本申请实施例的GP位置，CP扩展，AGC位置示意图；
图8是根据本申请实施例的资源检测位置示意图；
图9是根据本申请实施例的信息传输装置的结构示意图；
图10是根据本申请实施例的通信设备的结构示意图；
图11是根据本申请实施例的终端的结构示意图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员所获得的所有其他实施例，都属于本申请保护的范围。
本申请的说明书和权利要求书中的术语“第一”、“第二”等是用于区别类似的对象，而不用于描述特定的顺序或先后次序。应该理解这样使用的术语在适当情况下可以互换，以便本申请的实施例能够以除了在这里图示或描述的那些以外的顺序实施，且“第一”、“第二”所区别的对象通常为一类，并不限定对象的个数，例如第一对象可以是一个，也可以是多个。此外，说明书以及权利要求中“和/或”表示所连接对象的至少其中之一，字符“/”一般表示前后关联对象是一种“或”的关系。
值得指出的是，本申请实施例所描述的技术不限于长期演进型(Long Term Evolution，LTE)/LTE的演进(LTE-Advanced，LTE-A)系统，还可用于其他无线通信系统，诸如码分多址(Code Division Multiple Access，CDMA)、时分多址(Time Division Multiple Access，TDMA)、频分多址(Frequency Division Multiple Access，FDMA)、正交频分多址(Orthogonal Frequency Division Multiple Access，OFDMA)、单载波频分多址(Single-carrier Frequency Division Multiple Access，SC-FDMA)和其他系统。本申请实施例中的术语“系统”和“网络”常被可互换地使用，所描述的技术既可用于以上提及的系统和无 线电技术，也可用于其他系统和无线电技术。以下描述出于示例目的描述了新空口(New Radio，NR)系统，并且在以下大部分描述中使用NR术语，但是这些技术也可应用于NR系统应用以外的应用，如第6代(6 th Generation，6G)通信系统。
图1示出本申请实施例可应用的一种无线通信系统的框图。无线通信系统包括终端11和网络侧设备12。其中，终端11可以是手机、平板电脑(Tablet Personal Computer)、膝上型电脑(Laptop Computer)或称为笔记本电脑、个人数字助理(Personal Digital Assistant，PDA)、掌上电脑、上网本、超级移动个人计算机(ultra-mobile personal computer，UMPC)、移动上网装置(Mobile Internet Device，MID)、增强现实(augmented reality，AR)/虚拟现实(virtual reality，VR)设备、机器人、可穿戴式设备(Wearable Device)、车载设备(VUE)、行人终端(PUE)、智能家居(具有无线通信功能的家居设备，如冰箱、电视、洗衣机或者家具等)、游戏机、个人计算机(personal computer，PC)、柜员机或者自助机等终端侧设备，可穿戴式设备包括：智能手表、智能手环、智能耳机、智能眼镜、智能首饰(智能手镯、智能手链、智能戒指、智能项链、智能脚镯、智能脚链等)、智能腕带、智能服装等。需要说明的是，在本申请实施例并不限定终端11的具体类型。网络侧设备12可以包括接入网设备或核心网设备，其中，接入网设备也可以称为无线接入网设备、无线接入网(Radio Access Network，RAN)、无线接入网功能或无线接入网单元。接入网设备可以包括基站、无线局域网(Wireless Local Area Network，WLAN)接入点或无线保真(Wireless Fidelity，WiFi)节点等，基站可被称为节点B、演进节点B(eNB)、接入点、基收发机站(Base Transceiver Station，BTS)、无线电基站、无线电收发机、基本服务集(Basic Service Set，BSS)、扩展服务集(Extended Service Set，ESS)、家用B节点、家用演进型B节点、发送接收点(Transmitting Receiving Point，TRP)或所述领域中其他某个合适的术语，只要达到相同的技术效果，所述基站不限于特定技术词汇，需要说明的是，在本申请实施例中仅以NR系统中的基站为例进行介 绍，并不限定基站的具体类型。
下面结合附图，通过一些实施例及其应用场景对本申请实施例提供的信息传输方法进行详细地说明。
如图2所示，本申请实施例提供一种共享频段(shared band)上的信息传输方法200，该方法可以由终端执行，换言之，该方法可以由安装在终端的软件或硬件来执行，该方法包括如下步骤。
S202：在共享频段上，终端在旁链路(SideLink，SL)上传输信息；其中，所述传输信息包括如下至少之一：接收信息，发送信息，进行信道检测，进行SL信道接入。
本申请各个实施例中提到的共享频段(shared band)可以包括非授权频段。所述终端可以为发送终端(TX UE)，接收终端(RX UE)或调度终端(scheduling UE)等。
终端在SL传输的信息例如包括：控制信息，数据信息，反馈信息，同步信息，参考信号，发现信息等。上述信息可以通过SL信道传输，该SL信道例如包括：物理旁链路控制信道(Physical Sidelink Control Channel，PSCCH)，物理旁链路共享信道(Physical Sidelink Shared Channel，PSSCH)，物理旁链路反馈信道(Physical Sidelink Feedback Channel，PSFCH)，物理旁链路广播信道(Physical Sidelink Broadcast Channel，PSBCH)，物理旁链路发现信道(Physical Sidelink Discovery Channel，PSDCH)等。
在第一个例子中，S202中终端在SL上接收信息，该终端可以是接收终端，例如，接收终端在共享频段上接收来自于发送终端的信息。该例子中，接收终端已经成功接入了共享频段，接收终端在共享频段中已经获取了资源。
在第二个例子中，S202中终端在SL上发送信息，该终端可以是发送终端，例如，发送终端在共享频段上向接收终端发送信息。该例子中，发送终端已经成功接入了共享频段，发送终端在共享频段中已经获取了资源。
在第三个例子中，S202中终端进行SL信道接入，其中，SL信道接入的流程可以包括：1)终端进行信道检测，根据检测结果，判断共享频段是否可 以用于终端的传输，也就是是否可以用于SL传输，该SL传输可以认为是信息的接收或测量；2)若判断信道可用，则在共享频段上进行SL信道接入，例如，终端在共享频段中判断是否存在SL资源，终端可以根据申请后续实施例中介绍的资源检测方法去检测。这里信息的接收或测量，可以包括SL信道上的信息，也可以包括上行(Uplink，UL)/下行(Downlink，DL)信息。
在第四个例子中，S202中终端进行信道检测(这里还可以包括信号的检测)，例如，终端在一定的资源上进行检测或者测量，判断信道或资源是否空闲。
可以理解，上述介绍的四个例子可以组合以构成更多的实施例，例如，第三个例子和第一个例子组合，第三个例子和第二个例子组合，等等。
本申请实施例提供的信息传输方法，在共享频段上，终端可以在旁链路上传输信息，该传输信息可以包括如下至少之一：接收信息，发送信息，进行信道检测，进行SL信道接入。本申请实施例解决SL无法在共享频段上传输而影响通信性能的问题，有利于提高通信系统性能，提高资源利用率。
可选地，S202中提到的终端在SL上传输信息可以包括：所述终端根据指示信息在SL上传输信息；其中，所述指示信息包括如下至少之一：调度的资源；信道占用时间(Channel Occupancy Time，COT)信息；剩余COT信息；共享的资源；检测的资源；时域资源的起始位置；时域资源的结束位置；时域资源的大小或长度；频域资源的起始位置；频域资源的结束位置；频域资源的大小或长度；循环前缀(Cyclic Prefix，CP)扩展信息；SL信道接入类型；资源块(Resource Block，RB)集合；交织指示(Interlace indication)；剩余交织指示(Remaining interlace indication)。
上述指示信息可以是网络侧设备或调度终端配置或指示的，还可以是预定义的。
上述指示信息中，调度的资源；COT信息；剩余COT信息以及共享的资源等，可以是网络侧设备或调度终端指示给发送终端的，用于发送终端进 行SL信道接入，其中，S202的执行主体可以是发送终端；也可以是发送终端指示给接收终端的，用于接收终端进行SL信道接入，其中，S202的执行主体可以是接收终端。
上述指示信息中，时域资源的起始位置；时域资源的结束位置；时域资源的大小或长度；频域资源的起始位置；频域资源的结束位置以及频域资源的大小或长度等，均可以用于S202中终端传输信息使用。
上述指示信息中，CP扩展信息可以用于指示CP扩展的信息，该CP扩展的信息例如包括CP扩展的位置，长度等。其中，CP扩展用于终端在抢占信道成功后可占有信道，避免被其他终端/用户设备(User Equipment，UE)或系统抢占资源，同时可以实现基于时隙的传输(slot based transmission)或者时基于子时隙(mini-slot)的传输。
上述指示信息中，SL信道接入类型例如包括类型1SL信道接入流程(type 1 SL channel access procedure)，类型2A SL信道接入流程(type 2A SL channel access procedure)，类型2B SL信道接入流程(type 2B SL channel access procedure)，类型2C SL信道接入流程(type 2C SL channel access procedure)等。
上述指示信息中，RB集合；交织指示以及剩余交织指示均可以是频域资源指示。
可选地，前文各个实施例中提到的指示信息可以由如下至少之一的消息或信令携带：第一级旁链路控制信息(Sidelink Control Information，SCI)；第二级SCI；下行控制信息(Downlink Control Information，DCI)；媒体接入控制单元(Media Access Control Element，MAC CE)；无线资源控制(Radio Resource Control，RRC)消息。其中，RRC消息包括基站配置的信息，也包括UE配置的PC5-RRC信息。
上述第一级SCI可以是格式1-A SCI(SCI format 1-A)，还可以是新定义的第一级SCI格式。上述第二级SCI可以是格式2-A SCI(SCI format 2-A)或格式2-B SCI(SCI format 2-B)，还可以是新定义的第二级SCI格式。
该实施例中，在S202之前，终端还可以接收上述至少之一的消息或信令。上述指示信息可以是发送终端、调度终端或网络侧设备的至少之一配置或指示的，还可以是预定义的。
该实施例例如，发送终端发送共享的COT信息给接收终端，接收终端根据COT信息指示的COT进行空闲信道评估(Clear Channel Assessment，CCA)，判断指示的COT是否可用。又例如，调度终端(Scheduling UE)发送COT信息给发送终端，发送终端根据指示的COT进行CCA，判断指示的COT是否可用。
在一个例子中，所述指示信息包括所述CP扩展信息，所述终端在SL上传输信息之前，所述方法还包括：所述终端根据所述CP扩展信息确定CP扩展的信息，该CP扩展的信息可以包括CP扩展的长度和位置等，该处提到的CP扩展的长度可以包括CP扩展的时长或范围等。
上述CP扩展信息可以指示的范围为K个符号，和/或，所述CP扩展的时长T_ext根据配置、指示或预定义的符号数目L以及保护时间间隔的时长Gap中的至少一项确定，K是非负整数。
该实施例例如，上述CP扩展信息可以指示的范围为0～14个符号。其中，CP扩展信息指示的范围为0个符号时，表示不存在CP扩展；CP扩展信息指示的范围为14个符号时，可以实现时隙级别(slot level)的边界对齐。
可选地，所述CP扩展的时长T_ext是根据如下公式确定的：T_ext＝L*symbol_length–T_sensing–Gap。或者，可以是T_ext＝L*symbol_length–T_sensing。
其中，symbol_length为一个符号的时长，与SCS的配置相关。
T_sensing为先听后说(Listen Before Talk，LBT)的时长，可能可以为16μs或25μs，或者可能是与信道接入流程的类型确定，可根据预定义，配置或指示的SL信道接入方式确定。
上述保护时间间隔的时长Gap可以为13μs，或者7μs或者8μs，可根据终端的频段确定，例如，终端的频段为FR 2，则保护时间间隔的时长Gap为 7μs或者8μs。
该实施例中，若考虑保护间隔的时间，在计算CP扩展的时长时减去了保护时间间隔的时长，有利于终端(sensing UE)在接收-发送(RX->TX)之间有足够的间隔切换，避免因切换不及时而出现通信问题，有利于提高通信性能。
前文各个实施例提到的终端根据指示信息在SL上传输信息。可选地，所述指示信息为所述终端指示或分配了M个传输资源。这M个传输资源并不一定是全部用于所述信息传输，而是分配给所述终端的，所以，终端可以进一步从M个资源中确定传输SL信息的资源。例如：若分配给UE M个资源(M个资源可以为连续或者非连续的资源)，UE对M个资源进行SL信道接入流程，若接入成功，则UE可在M个资源上传输SL信息；若前M1个资源接入失败(其中，M1大于等于1，M1小于等于M)，在第M1+1个资源前接入成功，则UE可在第M1+1到第M个资源上传输SL信息。
该实施例考虑到，当终端SL信道接入成功后，可以根据一些预定义的规则/信息进行信息的发送/接收。这里主要考虑的是时隙级别的传输(slot level transmission)，在保护间隔(Guard Period，GP)/自动增益控制(Automatic Gain Control，AGC)中可以确定出类型2旁连路信道接入(type 2 SL channel access)的位置，然后基于GP/AGC确定该如何进行资源映射。
可选地，若所述指示信息指示所述终端为M次传输或指示M个传输资源，M为正整数，则所述终端在SL上传输的资源满足如下1)至3)中的至少之一：
1)所述终端根据预设规则或第一参数确定资源映射的位置。
上述预设规则可以用于确定资源映射的位置，该预设规则可以是预定义的或网络侧设备配置或指示的，也可以是UE配置或指示的。
可选地，所述资源映射的位置信息包括如下至少之一：起始位置，结束位置，资源长度。
可选地，所述第一参数包括以下至少之一：源地址标识(Source ID)； 目的地址标识(Destination ID)；组标识(Group ID)；传输类型(如单播、组播或广播)；子载波间隔(SubCarrier Spacing，SCS)；服务质量(Quality of Service，QoS)；信道接入优先级等级(Channel Access Priority Class，CAPC)。
2)所述终端根据指示信息中的交织指示确定F个交织资源，F为正整数。该实施例考虑采用交织资源来满足频域占用信道带宽(Occupy Channel Bandwidth，OCB)需求。
可选地，所述交织指示满足如下a至d中的至少之一：
a、所述交织指示通过位图的方式指示所述F个交织资源。例如，交织指示为X比特，X为位图(bitmap)指示F个交织资源，X为正整数。
b、所述交织指示包括起始交织资源的索引。
c、所述交织指示包括结束交织资源的索引。
d、所述交织指示包括所述交织资源的数量。
在一个例子中，所述交织指示包括起始交织资源的索引以及所述交织资源的数量。该例子可以通过资源指示值(Resource Indication Value，RIV)指示，指示开销更小。
在一个例子中，所述交织指示包括起始交织资源的索引和结束交织资源的索引。
3)所述终端根据配置、指示或预定义的资源映射方式进行资源映射。
可选地，所述资源映射方式包括如下a至c中的至少之一：
a、先T个时域资源后F个频域资源的映射方式。其中，T和/或F为配置、指示或预定义的正整数。
b、先F个频域资源后T个时域资源的映射方式。其中，T和/或F为配置、指示或预定义的正整数。
c、根据第一条件确定出的先时域资源或先频域资源的映射方式。上述第一条件可以用于确定映射方式，该第一条件可以是预定义的或网络侧设备配置或指示的，也可以是UE配置或指示的。
在一个例子中，所述资源映射的位置包括所述起始位置，所述起始位置 根据所述预设规则确定，所述终端在SL上传输信息包括如下至少之一：
1)所述终端在第一个传输资源(如时隙)中，SL信息从传输资源的第二个符号开始映射，和/或，第一个符号的信息为第二个符号的信息的重复或者第一个符号的后半个符号的信息为第二个符号的信息的部分重复。
2)所述终端在第2至M个传输资源中，SL信息从传输资源的第一个符号开始映射。该例子中，第2至M个传输资源中不存在AGC符号。
本申请各个实施例中提到的SL信息例如包括PSCCH，PSSCH，参考信号(Reference Signal，RS)等，具体可以是S202中传输的信息。
在一个例子中，所述资源映射的位置包括所述起始位置，所述起始位置根据所述第一参数确定，所述终端在SL上传输信息包括如下至少之一：
1)若多次传输的目的地址标识相同，则只在第一次传输中，第一个符号的信息为第二个符号的重复或第一个符号中的后半个符号的信息为第二个符号的部分重复。该例子中，第2至M个传输资源中不存在AGC符号。
2)若多次传输的目的地址标识不同，则在不同目的地址标识对应的传输资源的第一个资源单元中，第一个符号的信息为第二个符号的重复或第一个符号中的后半个符号的信息为第二个符号的部分重复。
3)若SCS为第一SCS，则第一个符号中的后半个符号的信息为第二个符号的信息的部分重复。该例子例如，SCS＝30kHz，则AGC为半个符号，为LBT+GP预留资源。
在一个例子中，所述资源映射的位置包括所述结束位置，所述结束位置根据所述预设规则确定，所述终端在SL上传输信息包括如下至少之一：
1)所述终端在前M-1个传输资源中，SL信息映射到传输资源的最后一个符号或第N 1个符号。该例子中，前M-1个传输资源中不存在GP(Guard Period)符号。
2)所述终端在第M个传输资源或最后一个传输资源中，SL信息映射到传输资源的倒数第二个符号或者第(N 1-1)个符号；N 1为正整数，N 1可以是14。该例子中，第M个传输资源中存在GP符号。
在一个例子中，所述资源映射的位置包括所述结束位置，所述结束位置根据所述第一参数确定，所述终端在SL上传输信息满足：若多次传输的源地址标识相同，则在第M个传输资源的最后一个符号，或者最后一次传输中存在GP。该例子中，前M-1个传输资源中不存在GP符号，最后一次传输的最后一个符号为GP符号。
可选地，前文各个实施例中提到的所述终端在SL上进行SL信道接入包括：所述终端进行信道检测；其中，所述终端进行信道检测的资源位置满足如下至少之一：
1)所述终端在指示的资源的前一个时间单元的起始位置开始检测。
2)所述终端在指示的资源的前一个时间单元的起始位置向后偏移a个时间单元开始检测。
3)所述终端在指示的资源的前一个时间单元的结束位置向前偏移b个时间单元开始检测。
4)所述终端在指示的资源的起始位置向前偏移c个时间单元的位置开始检测。
其中，a，b和c为正整数。
需要说明的是，本申请各个实施例中提到的时间单元可以是：时隙，符号，帧，子帧，毫秒，秒等。
该实施例例如，终端根据指示信息指示的资源信息(如剩余COT信息，COT信息，RB集合，剩余交织指示)，来确定进行资源检测的位置。该实施例考虑到，在共享COT中，终端可以确定类型2(type 2)资源检测的位置，考虑COT内传输间隔<16μs，不会失去COT；考虑gap满足13μs/7μs的转换需求。
为详细说明本申请实施例提供的信息传输方法，以下将结合几个具体的实施例进行说明。
实施例一
该实施例主要介绍COT或LBT(Listen Before Talk)的指示。
该实施例中，发送终端或调度终端发送SCI(如1st SCI/2nd SCI))，SCI包括指示信息，该指示信息指示剩余COT信息，RB集合，剩余交织指示等。
终端根据监听检测的SCI中指示的剩余COT信息，RB集合，剩余交织指示等，对指示的时频资源进行SL信道接入。该实施例中，终端可以进行Cat 2 25μs/Cat 2 16μs/Cat 4/Cat 1 LBT(对应不同类型信道接入流程的检测方式)的信道监听。
可选的，发送终端或调度终端采用1st SCI发送上述指示信息，其中，1st SCI中携带剩余COT信息，RB集合。可选地，指示信息与预留资源指示联合编码；或者，指示信息为独立指示。
实施例二
该实施例主要介绍CP扩展信息的指示。
该实施例中，发送终端在SCI中指示CP扩展信息，接收终端根据所述CP扩展信息确定CP扩展的长度，以及时隙或者数据传输的起始位置。
CP扩展的范围为0-M，其中M为预定义的或配置的参数。可选的，M为与SCS相关的配置。
其中，CP扩展的可选值的范围参见图3，图3中竖向方向的箭头指示的是信道接入成功的位置。图3的第二行中，CP扩展为半个符号；图3的第三行中，CP扩展为6.5个符号。其中，CP扩展的目的是为了实现时隙边界(slot boundary)对齐。
该实施例中，终端在第一次接入信道应用CP扩展，在后续的传输中不应用CP扩展，可以实现时隙边界对齐。
实施例三
该实施例可以分以下多种情况进行介绍。
情况1：
发送终端连续M次传输，M次传输的源地址(source UE)与目的地址(destination UE)相同。
第1次传输中，PSSCH从SL资源的起始位置的第二个符号开始映射； PSSCH映射到SL资源的最后一个符号/映射到该slot的最后一个符号。其中，第一个符号为第二符号的重复。也就是第一个时隙(slot)存在AGC。
第2次传输到第M-1次传输，PSSCH从slot的第一个符号开始映射(没有AGC)，PSSCH映射到slot的最后一个符号，也即2～(M-1)个slot不存在AGC和GP。
第M次传输，PSSCH从slot的第一个符号开始映射，PSSCH映射到slot的第13个符号，slot的最后一个符号为保护间隔符号，最后一个slot存在GP。
该实施例对于一对终端之间的连续传输比较适用。
情况2:
发送终端连续M次传输，M次传输的源地址(source UE)相同，目的地址(destination UE)不同。
结构和资源映射方式可以同情况1。
第二个slot假设发送终端不进行功率调整，对系统内其他终端的接收无影响，但是，如果接收终端不进行AGC，可能会导致由于功率过大或过小，而接收端可能无法解调。
若第二个slot假设发送终端进行功率调整，若存在其他终端与该UE为频分复用(Frequency Division Multiplexing，FDM)复用，其他终端无AGC调整时间，会导致远近效应，无法正确接收信号，对于接收端无AGC调整时间，可能无法解调。
该实施例中，第二个slot不做AGC调整，可能会导致SL系统PRR降低。
情况2-1：
发送终端连续M次传输，M次传输的源地址(source UE)相同，目的地址(destination UE)不同。
第1次传输中，PSSCH从SL资源的起始位置的第二个符号开始映射；PSSCH映射到SL资源的最后一个符号/映射到该slot的最后一个符号。其中， 第一个符号为第二符号的重复，也就是第一个slot存在AGC。
第2次传输到第M-1次传输中，对于目的地址改变的slot/功率改变的slot，在该slot中，PSSCH从slot的第二个符号开始映射(存在1符号的AGC)，PSSCH映射到slot的最后一个符号，2～(M-1)个slot存在AGC，不存在GP)。
第M次传输，PSSCH从slot的第一个符号开始映射，PSSCH映射到slot的第13个符号，slot的最后一个符号为保护间隔符号，即最后一个slot存在GP。
该实施例可以提高SL系统的PRR。
上述情况1，情况2和情况2-1可以参见附图4。
情况3：
发送终端检测占用N个资源，前M次传输为发送信息，后(N-M)个资源共享给其他终端，例如，共享给接收终端，用于接收终端发送信息。
前M次传输中，发送终端根据上述情况1或情况2传输信息。
在前M-1个slot中，接收终端根据上述情况1或情况2接收信息。第M-1次传输中的最后一个符号内，接收终端根据预定义/配置/指示信息进行type 2A SL信道接入流程。若成功，则接收终端的PSSCH从第M个slot的第二个符号开始映射，第一个符号为第二个符号的重复。信道接入时间位于上一次GP的中，与GP共享一个符号。
可选的，当共享给其他终端使用，其他终端为非第一个slot对应的接收终端。
如图5所示，在15kHz下，一个符号为72μs。GP与type 2A channel access共享一个符号是足够的。30kHz下，类型2A信道接入需要25μs，该符号内剩余时间为11μs，对于FR 1，接收终端无法从接收状态切换到发送状态，对于FR 2，接收终端可以从接收状态切换到发送状态。
实施例四：
该实施例可以分以下两种情况进行介绍。
情况A：15kHz/30kHz，1符号的AGC。
该实施例中，预定义/配置/指示为1符号的AGC，或者slot的第一个符号为第二个符号的重复。
终端在指示的slot的前一个符号内进行类型2信道接入流程(type 2A channel access procedure)。
可选地，终端根据预定义/配置/指示的信息传输CP扩展。CP扩展是为了保证CCA接入成功后，抢占信道。
可选的，LBT后终端不传输信息。存在>25μs的间隔，可能会丢失信道，需要重新检测。
如图6所示，对于15kHz，1符号内除了LBT剩余的时间47μs，可以满足TX(Transmit)/RX(Receive)切换的需求。对于30kHz，1符号内除了LBT剩余的时间11μs，不满足FR 1下TX/RX切换的需求。一种情况下，认为在25μs的LBT中，最后一个sensing slot(LBT中定义的sensing slot为9μs)中4μs idle位于sensing slot的前4μs的位置，那么在LBT最后5μs是可以用于收发转换的，可以满足13μs切换时间的需求。
情况B：30kHz，半个符号的AGC。
该实施例中，预定义/配置/指示为半个符号的AGC，或者slot的第一个符号中的后半个符号为第二个符号的重复。
如图7所示，终端在指示的slot的前一个符号内进行类型2信道接入流程(type 2A channel access procedure)。
可选地，终端根据预定义/配置/指示的信息传输CP扩展。CP扩展是为了保证CCA接入成功后，抢占信道。
可选的，LBT后终端不传输信息。存在>25μs的间隔，可能会丢失信道，需要重新检测。
若类型2信道接入成功，PSSCH从指示的资源的第二个符号开始映射；指示的资源的第一个符号的后半符号为指示的资源中第二个符号的部分信息的重复。
实施例五
该实施例主要介绍类型2监听(type 2 sensing)的位置的选择。
该实施例中，终端在指示资源的上一个符号中执行类型2信道接入流程(可以包括type 2A/type 2B/type 2C channel access)。
可选的，如图8第一行所示，终端在上一个符号的起始位置开始信道接入。
可选的，如图8第二行所示，终端在上一个符号的起始位置后偏移a个时间单元进行信道接入。
可选的，如图8第三行所示，终端在上一个符号结束位置前/指示的资源的起始位置前b个时间单元进行信道接入。
申请实施例提供的信息传输方法，执行主体可以为信息传输装置。本申请实施例中以信息传输装置执行信息传输方法为例，说明本申请实施例提供的信息传输装置。
图9是根据本申请实施例的信息传输装置的结构示意图，该装置可以对应于其他实施例中的终端。如图9所示，装置900包括如下模块。
通信模块902，可以用于在共享频段上，在SL上传输信息；其中，所述传输信息包括如下至少之一：接收信息，发送信息，进行信道检测，进行SL信道接入。
可选地，装置900还包括处理模块，如处理器等。
本申请实施例提供的信息传输装置，通信模块可以在旁链路上传输信息，该传输信息可以包括如下至少之一：接收信息，发送信息，进行信道检测，进行SL信道接入。本申请实施例解决SL无法在共享频段上传输而影响通信性能的问题，有利于提高通信系统性能，提高资源利用率。
可选地，作为一个实施例，所述通信模块902，用于根据指示信息在SL上传输信息；其中，所述指示信息包括如下至少之一：调度的资源；COT信息；剩余COT信息；共享的资源；检测的资源；时域资源的起始位置；时域资源的结束位置；时域资源的大小或长度；频域资源的起始位置；频域资源的结束位置；频域资源的大小或长度；CP扩展信息；SL信道接入类型；RB 集合；交织指示；剩余交织指示。
可选地，作为一个实施例，所述指示信息由如下至少之一携带：第一级SCI；第二级SCI；DCI；MAC CE；RRC消息。
可选地，作为一个实施例，所述指示信息包括所述CP扩展信息，所述装置还包括处理模块，用于根据所述CP扩展信息确定CP扩展的信息；其中，所述CP扩展信息指示的范围为K个符号，和/或，所述CP扩展的时长T_ext根据配置、指示或预定义的符号数目L以及保护时间间隔的时长Gap中的至少一项确定，K是非负整数。
可选地，作为一个实施例，所述CP扩展的时长T_ext是根据如下公式确定的：T_ext＝L*symbol_length–T_sensing–Gap；或者，T_ext＝L*symbol_length–T_sensing，其中，symbol_length为一个符号的时长，T_sensing为先听后说LBT的时长。
可选地，作为一个实施例，若所述指示信息指示所述装置为M次传输或指示M个传输资源，M为正整数，则所述通信模块902在SL上传输的资源满足如下至少之一：根据预设规则或第一参数确定资源映射的位置；根据指示信息中的交织指示确定F个交织资源，F为正整数；根据配置、指示或预定义的资源映射方式进行资源映射。
可选地，作为一个实施例，所述资源映射的位置信息包括如下至少之一：起始位置，结束位置，资源长度；所述第一参数包括以下至少之一：源地址标识；目的地址标识；组标识；传输类型；SCS；QoS；CAPC。
可选地，作为一个实施例，所述资源映射的位置包括所述起始位置，所述起始位置根据所述预设规则确定，所述通信模块902，用于如下至少之一：1)在第一个传输资源中，SL信息从传输资源的第二个符号开始映射，和/或，第一个符号的信息为第二个符号的信息的重复或者第一个符号的后半个符号的信息为第二个符号的信息的部分重复；2)在第2至M个传输资源中，SL信息从传输资源的第一个符号开始映射。
可选地，作为一个实施例，所述资源映射的位置包括所述起始位置，所 述起始位置根据所述第一参数确定，所述通信模块902，用于如下至少之一：1)若多次传输的目的地址标识相同，则只在第一次传输中，第一个符号的信息为第二个符号的重复或第一个符号中的后半个符号的信息为第二个符号的部分重复；2)若多次传输的目的地址标识不同，则在不同目的地址标识对应的传输资源的第一个资源单元中，第一个符号的信息为第二个符号的重复或第一个符号中的后半个符号的信息为第二个符号的部分重复；3)若SCS为第一SCS，则第一个符号中的后半个符号的信息为第二个符号的信息的部分重复。
可选地，作为一个实施例，所述资源映射的位置包括所述结束位置，所述结束位置根据所述预设规则确定，所述通信模块902，用于如下至少之一：1)在前M-1个传输资源中，SL信息映射到传输资源的最后一个符号或第N 1个符号；2)在第M个传输资源或最后一个传输资源中，SL信息映射到传输资源的倒数第二个符号或者第N 1-1个符号；N 1为正整数。
可选地，作为一个实施例，所述资源映射的位置包括所述结束位置，所述结束位置根据所述第一参数确定；其中，若多次传输的源地址标识相同，则在第M个传输资源的最后一个符号，或者最后一次传输中存在保护间隔GP。
可选地，作为一个实施例，所述交织指示满足如下至少之一：1)所述交织指示通过位图的方式指示所述F个交织资源；2)所述交织指示包括起始交织资源的索引；3)所述交织指示包括结束交织资源的索引；4)所述交织指示包括所述交织资源的数量。
可选地，作为一个实施例，所述资源映射方式包括如下至少之一：1)先T个时域资源后F个频域资源的映射方式；2)先F个频域资源后T个时域资源的映射方式；3)根据第一条件确定出的先时域资源或先频域资源的映射方式；其中，T和/或F为配置、指示或预定义的正整数。
可选地，作为一个实施例，所述通信模块902，用于进行信道检测；其中，所述通信模块进行信道检测的资源位置满足如下至少之一：1)在指示的 资源的前一个时间单元的起始位置开始检测；2)在指示的资源的前一个时间单元的起始位置向后偏移a个时间单元开始检测；3)在指示的资源的前一个时间单元的结束位置向前偏移b个时间单元开始检测；4)在指示的资源的起始位置向前偏移c个时间单元的位置开始检测；其中，a，b和c为正整数。
根据本申请实施例的装置900可以参照对应本申请实施例的方法200的流程，并且，该装置900中的各个单元/模块和上述其他操作和/或功能分别为了实现方法200中的相应流程，并且能够达到相同或等同的技术效果，为了简洁，在此不再赘述。
本申请实施例中的信息传输装置可以是电子设备，例如具有操作系统的电子设备，也可以是电子设备中的部件，例如集成电路或芯片。该电子设备可以是终端，也可以为除终端之外的其他设备。示例性的，终端可以包括但不限于上述所列举的终端11的类型，其他设备可以为服务器、网络附属存储器(Network Attached Storage，NAS)等，本申请实施例不作具体限定。
本申请实施例提供的信息传输装置能够实现图2至图7的方法实施例实现的各个过程，并达到相同的技术效果，为避免重复，这里不再赘述。
可选的，如图10所示，本申请实施例还提供一种通信设备1000，包括处理器1001和存储器1002，存储器1002上存储有可在所述处理器1001上运行的程序或指令，例如，该通信设备1000为终端时，该程序或指令被处理器1001执行时实现上述信息传输方法实施例的各个步骤，且能达到相同的技术效果，为避免重复，这里不再赘述。
本申请实施例还提供一种终端，包括处理器和通信接口，通信接口用于在共享频段上，在旁链路上传输信息，该传输信息可以包括如下至少之一：接收信息，发送信息，进行信道检测，进行SL信道接入。该终端实施例与上述终端侧方法实施例对应，上述方法实施例的各个实施过程和实现方式均可适用于该终端实施例中，且能达到相同的技术效果。具体地，图11为实现本申请实施例的一种终端的硬件结构示意图。
该终端1100包括但不限于：射频单元1101、网络模块1102、音频输出 单元1103、输入单元1104、传感器1105、显示单元1106、用户输入单元1107、接口单元1108、存储器1109以及处理器1110等中的至少部分部件。
本领域技术人员可以理解，终端1100还可以包括给各个部件供电的电源(比如电池)，电源可以通过电源管理系统与处理器1110逻辑相连，从而通过电源管理系统实现管理充电、放电、以及功耗管理等功能。图11中示出的终端结构并不构成对终端的限定，终端可以包括比图示更多或更少的部件，或者组合某些部件，或者不同的部件布置，在此不再赘述。
应理解的是，本申请实施例中，输入单元1104可以包括图形处理单元(Graphics Processing Unit，GPU)11041和麦克风11042，图形处理器11041对在视频捕获模式或图像捕获模式中由图像捕获装置(如摄像头)获得的静态图片或视频的图像数据进行处理。显示单元1106可包括显示面板11061，可以采用液晶显示器、有机发光二极管等形式来配置显示面板11061。用户输入单元1107包括触控面板11071以及其他输入设备11072中的至少一种。触控面板11071，也称为触摸屏。触控面板11071可包括触摸检测装置和触摸控制器两个部分。其他输入设备11072可以包括但不限于物理键盘、功能键(比如音量控制按键、开关按键等)、轨迹球、鼠标、操作杆，在此不再赘述。
本申请实施例中，射频单元1101接收来自网络侧设备的下行数据后，可以传输给处理器1110进行处理；另外，射频单元1101可以向网络侧设备发送上行数据。通常，射频单元1101包括但不限于天线、放大器、收发信机、耦合器、低噪声放大器、双工器等。
存储器1109可用于存储软件程序或指令以及各种数据。存储器1109可主要包括存储程序或指令的第一存储区和存储数据的第二存储区，其中，第一存储区可存储操作系统、至少一个功能所需的应用程序或指令(比如声音播放功能、图像播放功能等)等。此外，存储器1109可以包括易失性存储器或非易失性存储器，或者，存储器1109可以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)，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，DDRSDRAM)、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(Synch link DRAM，SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM，DRRAM)。本申请实施例中的存储器1109包括但不限于这些和任意其它适合类型的存储器。
处理器1110可包括一个或多个处理单元；可选的，处理器1110集成应用处理器和调制解调处理器，其中，应用处理器主要处理涉及操作系统、用户界面和应用程序等的操作，调制解调处理器主要处理无线通信信号，如基带处理器。可以理解的是，上述调制解调处理器也可以不集成到处理器1110中。
其中，射频单元1101，可以用于在共享频段上，在旁链路上传输信息，该传输信息可以包括如下至少之一：接收信息，发送信息，进行信道检测，进行SL信道接入。
本申请实施例中，终端可以在旁链路上传输信息，该传输信息可以包括如下至少之一：接收信息，发送信息，进行信道检测，进行SL信道接入。本申请实施例解决SL无法在共享频段上传输而影响通信性能的问题，有利于提高通信系统性能，提高资源利用率。
本申请实施例提供的终端1100还可以实现上述信息传输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。
本申请实施例还提供一种可读存储介质，所述可读存储介质上存储有程序或指令，该程序或指令被处理器执行时实现上述信息传输方法实施例的各 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，所述处理器为上述实施例中所述的终端中的处理器。所述可读存储介质，包括计算机可读存储介质，如计算机只读存储器ROM、随机存取存储器RAM、磁碟或者光盘等。
本申请实施例另提供了一种芯片，所述芯片包括处理器和通信接口，所述通信接口和所述处理器耦合，所述处理器用于运行程序或指令，实现上述信息传输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。
应理解，本申请实施例提到的芯片还可以称为系统级芯片，系统芯片，芯片系统或片上系统芯片等。
本申请实施例另提供了一种计算机程序/程序产品，所述计算机程序/程序产品被存储在存储介质中，所述计算机程序/程序产品被至少一个处理器执行以实现上述信息传输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。
本申请实施例还提供了一种信息传输系统，包括：终端及网络侧设备，所述终端可用于执行如上所述的信息传输方法的步骤。
需要说明的是，在本文中，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。此外，需要指出的是，本申请实施方式中的方法和装置的范围不限按示出或讨论的顺序来执行功能，还可包括根据所涉及的功能按基本同时的方式或按相反的顺序来执行功能，例如，可以按不同于所描述的次序来执行所描述的方法，并且还可以添加、省去、或组合各种步骤。另外，参照某些示例所描述的特征可在其他示例中被组合。
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到上述 实施例方法可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件，但很多情况下前者是更佳的实施方式。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分可以以计算机软件产品的形式体现出来，该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中，包括若干指令用以使得一台终端(可以是手机，计算机，服务器，空调器，或者网络设备等)执行本申请各个实施例所述的方法。
上面结合附图对本申请的实施例进行了描述，但是本申请并不局限于上述的具体实施方式，上述的具体实施方式仅仅是示意性的，而不是限制性的，本领域的普通技术人员在本申请的启示下，在不脱离本申请宗旨和权利要求所保护的范围情况下，还可做出很多形式，均属于本申请的保护之内。

Claims (30)

  1. 一种信息传输方法，包括：
    在共享频段上，终端在旁链路SL上传输信息；
    其中，所述传输信息包括如下至少之一：接收信息，发送信息，进行信道检测，进行SL信道接入。
  2. 根据权利要求1所述的方法，其中，所述终端在SL上传输信息包括：所述终端根据指示信息在SL上传输信息；其中，所述指示信息包括如下至少之一：
    调度的资源；信道占用时间COT信息；剩余COT信息；共享的资源；检测的资源；时域资源的起始位置；时域资源的结束位置；时域资源的大小或长度；频域资源的起始位置；频域资源的结束位置；频域资源的大小或长度；循环前缀CP扩展信息；SL信道接入类型；资源块RB集合；交织指示；剩余交织指示。
  3. 根据权利要求2所述的方法，其中，所述指示信息由如下至少之一携带：
    第一级旁链路控制信息SCI；第二级SCI；下行控制信息DCI；媒体接入控制单元MAC CE；无线资源控制RRC消息。
  4. 根据权利要求2所述的方法，其中，所述指示信息包括所述CP扩展信息，所述终端在SL上传输信息之前，所述方法还包括：
    所述终端根据所述CP扩展信息确定CP扩展的信息；
    其中，所述CP扩展信息指示的范围为K个符号，和/或，所述CP扩展的时长T_ext根据配置、指示或预定义的符号数目L以及保护时间间隔的时长Gap中的至少一项确定，K是非负整数。
  5. 根据权利要求4所述的方法，其中，所述CP扩展的时长T_ext是根据如下公式确定的：
    T_ext＝L*symbol_length–T_sensing–Gap，或者，T_ext＝L*symbol_length–T_sensing；
    其中，symbol_length为一个符号的时长，T_sensing为先听后说LBT的时长。
  6. 根据权利要求2至5任一项所述的方法，其中，若所述指示信息指示所述终端为M次传输或指示M个传输资源，M为正整数，则所述终端在SL上传输的资源满足如下至少之一：
    所述终端根据预设规则或第一参数确定资源映射的位置；
    所述终端根据指示信息中的交织指示确定F个交织资源，F为正整数；
    所述终端根据配置、指示或预定义的资源映射方式进行资源映射。
  7. 根据权利要求6所述的方法，其中，
    所述资源映射的位置信息包括如下至少之一：起始位置，结束位置，资源长度；
    所述第一参数包括以下至少之一：源地址标识；目的地址标识；组标识；传输类型；子载波间隔SCS；服务质量QoS；信道接入优先级等级CAPC。
  8. 根据权利要求7所述的方法，其中，所述资源映射的位置包括所述起始位置，所述起始位置根据所述预设规则确定，所述终端在SL上传输信息包括如下至少之一：
    所述终端在第一个传输资源中，SL信息从传输资源的第二个符号开始映射，和/或，第一个符号的信息为第二个符号的信息的重复或者第一个符号的后半个符号的信息为第二个符号的信息的部分重复；
    所述终端在第2至M个传输资源中，SL信息从传输资源的第一个符号开始映射。
  9. 根据权利要求7所述的方法，其中，所述资源映射的位置包括所述起始位置，所述起始位置根据所述第一参数确定，所述终端在SL上传输信息包括如下至少之一：
    若多次传输的目的地址标识相同，则只在第一次传输中，第一个符号的信息为第二个符号的重复或第一个符号中的后半个符号的信息为第二个符号的部分重复；
    若多次传输的目的地址标识不同，则在不同目的地址标识对应的传输资源的第一个资源单元中，第一个符号的信息为第二个符号的重复或第一个符号中的后半个符号的信息为第二个符号的部分重复；
    若SCS为第一SCS，则第一个符号中的后半个符号的信息为第二个符号的信息的部分重复。
  10. 根据权利要求7所述的方法，其中，所述资源映射的位置包括所述结束位置，所述结束位置根据所述预设规则确定，所述终端在SL上传输信息包括如下至少之一：
    所述终端在前M-1个传输资源中，SL信息映射到传输资源的最后一个符号或第N 1个符号；
    所述终端在第M个传输资源或最后一个传输资源中，SL信息映射到传输资源的倒数第二个符号或者第N 1-1个符号；N 1为正整数。
  11. 根据权利要求7所述的方法，其中，所述资源映射的位置包括所述结束位置，所述结束位置根据所述第一参数确定，所述终端在SL上传输信息满足：
    若多次传输的源地址标识相同，则在第M个传输资源的最后一个符号，或者最后一次传输中存在保护间隔GP。
  12. 根据权利要求6所述的方法，其中，所述交织指示满足如下至少之一：
    所述交织指示通过位图的方式指示所述F个交织资源；
    所述交织指示包括起始交织资源的索引；
    所述交织指示包括结束交织资源的索引；
    所述交织指示包括所述交织资源的数量。
  13. 根据权利要求6所述的方法，其中，所述资源映射方式包括如下至少之一：
    先T个时域资源后F个频域资源的映射方式；
    先F个频域资源后T个时域资源的映射方式；
    根据第一条件确定出的先时域资源或先频域资源的映射方式；
    其中，T和/或F为配置、指示或预定义的正整数。
  14. 根据权利要求1至5任一项所述的方法，其中，所述终端在SL上进行SL信道接入包括：所述终端进行信道检测；其中，所述终端进行信道检测的资源位置满足如下至少之一：
    所述终端在指示的资源的前一个时间单元的起始位置开始检测；
    所述终端在指示的资源的前一个时间单元的起始位置向后偏移a个时间单元开始检测；
    所述终端在指示的资源的前一个时间单元的结束位置向前偏移b个时间单元开始检测；
    所述终端在指示的资源的起始位置向前偏移c个时间单元的位置开始检测；
    其中，a，b和c为正整数。
  15. 一种信息传输装置，包括：
    通信模块，用于在共享频段上，在SL上传输信息；
    其中，所述传输信息包括如下至少之一：接收信息，发送信息，进行信道检测，进行SL信道接入。
  16. 根据权利要求15所述的装置，其中，所述通信模块，用于根据指示信息在SL上传输信息；其中，所述指示信息包括如下至少之一：
    调度的资源；COT信息；剩余COT信息；共享的资源；检测的资源；时域资源的起始位置；时域资源的结束位置；时域资源的大小或长度；频域资源的起始位置；频域资源的结束位置；频域资源的大小或长度；CP扩展信息；SL信道接入类型；RB集合；交织指示；剩余交织指示。
  17. 根据权利要求16所述的装置，其中，所述指示信息由如下至少之一携带：
    第一级SCI；第二级SCI；DCI；MAC CE；RRC消息。
  18. 根据权利要求16所述的装置，其中，所述指示信息包括所述CP扩 展信息，所述装置还包括处理模块，用于根据所述CP扩展信息确定CP扩展的信息；
    其中，所述CP扩展信息指示的范围为K个符号，和/或，所述CP扩展的时长T_ext根据配置、指示或预定义的符号数目L以及保护时间间隔的时长Gap中的至少一项确定，K是非负整数。
  19. 根据权利要求18所述的装置，其中，所述CP扩展的时长T_ext是根据如下公式确定的：
    T_ext＝L*symbol_length–T_sensing–Gap，或者，T_ext＝L*symbol_length–T_sensing；
    其中，symbol_length为一个符号的时长，T_sensing为先听后说LBT的时长。
  20. 根据权利要求16至19任一项所述的装置，其中，若所述指示信息指示所述装置为M次传输或指示M个传输资源，M为正整数，则所述通信模块在SL上传输的资源满足如下至少之一：
    根据预设规则或第一参数确定资源映射的位置；
    根据指示信息中的交织指示确定F个交织资源，F为正整数；
    根据配置、指示或预定义的资源映射方式进行资源映射。
  21. 根据权利要求20所述的装置，其中，
    所述资源映射的位置信息包括如下至少之一：起始位置，结束位置，资源长度；
    所述第一参数包括以下至少之一：源地址标识；目的地址标识；组标识；传输类型；子载波间隔SCS；服务质量QoS；信道接入优先级等级CAPC。
  22. 根据权利要求21所述的装置，其中，所述资源映射的位置包括所述起始位置，所述起始位置根据所述预设规则确定，所述通信模块，用于如下至少之一：
    在第一个传输资源中，SL信息从传输资源的第二个符号开始映射，和/或，第一个符号的信息为第二个符号的信息的重复或者第一个符号的后半个 符号的信息为第二个符号的信息的部分重复；
    在第2至M个传输资源中，SL信息从传输资源的第一个符号开始映射。
  23. 根据权利要求21所述的装置，其中，所述资源映射的位置包括所述起始位置，所述起始位置根据所述第一参数确定，所述通信模块，用于如下至少之一：
    若多次传输的目的地址标识相同，则只在第一次传输中，第一个符号的信息为第二个符号的重复或第一个符号中的后半个符号的信息为第二个符号的部分重复；
    若多次传输的目的地址标识不同，则在不同目的地址标识对应的传输资源的第一个资源单元中，第一个符号的信息为第二个符号的重复或第一个符号中的后半个符号的信息为第二个符号的部分重复；
    若SCS为第一SCS，则第一个符号中的后半个符号的信息为第二个符号的信息的部分重复。
  24. 根据权利要求21所述的装置，其中，所述资源映射的位置包括所述结束位置，所述结束位置根据所述预设规则确定，所述通信模块，用于如下至少之一：
    在前M-1个传输资源中，SL信息映射到传输资源的最后一个符号或第N 1个符号；
    在第M个传输资源或最后一个传输资源中，SL信息映射到传输资源的倒数第二个符号或者第N 1-1个符号；N 1为正整数。
  25. 根据权利要求21所述的装置，其中，所述资源映射的位置包括所述结束位置，所述结束位置根据所述第一参数确定；
    其中，若多次传输的源地址标识相同，则在第M个传输资源的最后一个符号，或者最后一次传输中存在保护间隔GP。
  26. 根据权利要求20所述的装置，其中，所述交织指示满足如下至少之一：
    所述交织指示通过位图的方式指示所述F个交织资源；
    所述交织指示包括起始交织资源的索引；
    所述交织指示包括结束交织资源的索引；
    所述交织指示包括所述交织资源的数量。
  27. 根据权利要求20所述的装置，其中，所述资源映射方式包括如下至少之一：
    先T个时域资源后F个频域资源的映射方式；
    先F个频域资源后T个时域资源的映射方式；
    根据第一条件确定出的先时域资源或先频域资源的映射方式；
    其中，T和/或F为配置、指示或预定义的正整数。
  28. 根据权利要求15至19任一项所述的装置，其中，所述通信模块，用于进行信道检测；其中，所述通信模块进行信道检测的资源位置满足如下至少之一：
    在指示的资源的前一个时间单元的起始位置开始检测；
    在指示的资源的前一个时间单元的起始位置向后偏移a个时间单元开始检测；
    在指示的资源的前一个时间单元的结束位置向前偏移b个时间单元开始检测；
    在指示的资源的起始位置向前偏移c个时间单元的位置开始检测；
    其中，a，b和c为正整数。
  29. 一种终端，包括处理器和存储器，所述存储器存储可在所述处理器上运行的程序或指令，所述程序或指令被所述处理器执行时实现如权利要求1至14任一项所述的信息传输方法的步骤。
  30. 一种可读存储介质，所述可读存储介质上存储程序或指令，所述程序或指令被处理器执行时实现如权利要求1至14任一项所述的信息传输方法的步骤。
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