WO2017049938A1 - 一种在直通模式下信道冲突的处理方法以及终端 - Google Patents

一种在直通模式下信道冲突的处理方法以及终端 Download PDF

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Publication number
WO2017049938A1
WO2017049938A1 PCT/CN2016/083304 CN2016083304W WO2017049938A1 WO 2017049938 A1 WO2017049938 A1 WO 2017049938A1 CN 2016083304 W CN2016083304 W CN 2016083304W WO 2017049938 A1 WO2017049938 A1 WO 2017049938A1
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Prior art keywords
terminal
channel conflict
sci
service data
channel
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PCT/CN2016/083304
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English (en)
French (fr)
Inventor
鲁志兵
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海能达通信股份有限公司
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Application filed by 海能达通信股份有限公司 filed Critical 海能达通信股份有限公司
Priority to EP16847820.4A priority Critical patent/EP3355643B1/en
Priority to US15/761,537 priority patent/US10785776B2/en
Publication of WO2017049938A1 publication Critical patent/WO2017049938A1/zh

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    • 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
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access
    • H04W74/0841—Random access procedures, e.g. with 4-step access with collision treatment
    • H04W74/0858—Random access procedures, e.g. with 4-step access with collision treatment collision detection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/10—Protocols in which an application is distributed across nodes in the network
    • H04L67/104—Peer-to-peer [P2P] networks
    • H04L67/1074—Peer-to-peer [P2P] networks for supporting data block transmission mechanisms
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/30—Resource management for broadcast services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/002—Transmission of channel access control information
    • H04W74/008—Transmission of channel access control information with additional processing of random access related information at receiving side
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0808—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]
    • H04W74/0816—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA] with collision avoidance
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access
    • H04W74/0841—Random access procedures, e.g. with 4-step access with collision treatment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/14—Direct-mode setup

Definitions

  • the present invention relates to the field of wireless communications, and in particular, to a method and a terminal for processing a channel conflict in a direct mode.
  • Direct Mode Operation refers to a communication technology that directly communicates between terminals without cellular network coverage.
  • D2D Device-to-Device
  • 3GPP 3rd Generation Partnership Project
  • time-frequency resources for direct communication are limited. Since there is no base station to schedule time-frequency resources, when there are a large number of terminals in a range, different terminals may select the same time-frequency resource for communication, and a channel will occur at this time. The conflict caused the terminal to fail to receive the service data correctly and affect the user experience.
  • the embodiment of the present invention provides a method and a terminal for processing a channel conflict in the direct mode, which can ensure correct transmission of service data and improve user experience.
  • a first aspect of the present invention provides a method for processing a channel conflict in a pass-through mode, including:
  • the first terminal receives the first side connection control information SCI sent by the second terminal, and the second SCI sent by the third terminal;
  • the first terminal detects the second terminal and the location according to the first SCI and the second SCI Whether the third terminal has a channel conflict;
  • the first terminal If the second terminal and the third terminal have a channel conflict, the first terminal generates a channel conflict message, and sends the channel conflict message, so that the second terminal and the third terminal can be configured according to the The channel conflict message resends the service data.
  • the first terminal detects the second terminal and the third terminal according to the first SCI and the second SCI Whether channel conflicts occur includes:
  • the first terminal detects the second terminal and the third terminal according to the first SCI and the second SCI Whether channel conflicts occur includes:
  • the method further includes:
  • the method includes:
  • the first terminal determines whether the service data is correct, and if not, triggers the step of generating, by the first terminal, a channel conflict message.
  • the sending, by the first terminal, the channel conflict message includes:
  • the terminal sends a channel conflict message.
  • a second aspect of the present invention provides a method for processing a channel conflict in a pass-through mode, including:
  • the second terminal sends the service data, and sends the first side connection control information SCI, so that the first terminal can receive the first SCI, and detect, according to the first SCI, whether the second terminal and the third terminal have a channel conflict.
  • the second terminal resends the service data according to the channel conflict message.
  • the second terminal after receiving the channel conflict message sent by the first terminal, further includes:
  • the second terminal after receiving the channel conflict message sent by the first terminal, further includes:
  • the determining, by the second terminal, whether the second terminal meets the suspension condition includes:
  • the second terminal determines whether the priority of the second terminal is lower than a preset priority, and if yes, determines that the second terminal meets the suspension condition.
  • the second terminal acquiring the pause duration includes: The second terminal acquires the pause duration according to the random algorithm; or the second terminal acquires the pause duration according to the terminal priority.
  • a third aspect of the present invention provides a terminal, where the terminal is a first terminal, and the terminal includes:
  • a receiving module configured to receive a first side connection control information SCI sent by the second terminal, and a second SCI sent by the third terminal;
  • a detecting module configured to detect, according to the first SCI and the second SCI, whether a channel conflict occurs between the second terminal and the third terminal;
  • a generating module configured to generate a channel conflict message if a channel conflict occurs between the second terminal and the third terminal
  • a sending module configured to send the channel conflict message, so that the second terminal and the third terminal may resend the service data according to the channel conflict message.
  • a fourth aspect of the present invention provides a terminal, where the terminal is a second terminal, and the terminal includes:
  • a sending module configured to send the service data, and send the first side connection control information SCI, so that the first terminal can receive the first SCI, and detect, according to the first SCI, whether the second terminal and the third terminal occur Channel conflict
  • a receiving module configured to receive a channel conflict message sent by the first terminal
  • the sending module is further configured to resend the service data according to the channel conflict message.
  • a fifth aspect of the present invention provides a terminal, where the terminal is a first terminal, and the terminal includes:
  • Receiving device transmitting device, processor and memory
  • the receiving device is configured to receive first side connection control information SCI sent by the second terminal, and a second SCI sent by the third terminal;
  • the processor configured to detect, according to the first SCI and the second SCI, whether a channel conflict occurs between the second terminal and the third terminal;
  • the processor is further configured to generate a channel conflict message if a channel conflict occurs between the second terminal and the third terminal;
  • the sending device is configured to send the channel conflict message, so that the second terminal and the third terminal may resend the service data according to the channel conflict message.
  • the processor is configured to determine, according to the resource location indication of the first SCI and the resource location indication of the second SCI, Whether the side connection shared channel PSSCH is within the same transmission time interval TTI, and if so, determining that the second terminal and the third terminal have a channel conflict, wherein the first terminal, the second terminal, and the first The three terminals belong to the same session group.
  • the processor is configured to determine a PSSCH according to the resource location indication of the first SCI and the resource location indication of the second SCI. Whether the same time-frequency resource is occupied, and if so, determining that the second terminal and the third terminal have a channel conflict, wherein the first terminal and the second terminal belong to the same session group, and the first terminal And the third terminal belongs to a different session group.
  • the receiving device is further configured to receive service data sent by the second terminal;
  • the processor is specifically configured to: after the processor determines that the second terminal and the third terminal have a channel conflict, determine whether the service data is correct, and if not, trigger the processor to generate a channel conflict. The steps of the message.
  • the sending device is specifically configured to send, by using a broadcast, a channel conflict message, where the channel conflict message includes a second terminal identifier and a third terminal identifier; and/or,
  • the sending device is specifically configured to send a channel conflict message to the second terminal and the third terminal by using a point-to-point P2P mode.
  • a sixth aspect of the present invention provides a terminal, where the terminal is a second terminal, and the terminal includes:
  • Receiving device transmitting device, processor and memory
  • the transmitting device is configured to send the service data, and send the first side connection control information SCI, so that the first terminal can receive the first SCI, and detect the second terminal and the third terminal according to the first SCI. Whether a channel conflict occurs;
  • the receiving device is configured to receive a channel conflict message sent by the first terminal
  • the sending device is further configured to resend the service data according to the channel conflict message.
  • the processor is further configured to determine, according to the channel conflict message, whether the second terminal and the third terminal have a channel conflict, and if yes, triggering, by the sending apparatus, to resend the service according to the channel conflict message. The steps of the data.
  • the processor is further configured to determine whether the second terminal meets a pause condition, and if yes, trigger the processor to acquire a pause duration, and start timing from receiving the channel conflict message, and trigger when the timer reaches the pause duration And the step of resending the service data according to the channel conflict message; if not, triggering, by the sending device, the step of resending the service data according to the channel conflict message;
  • the processor is specifically configured to determine whether a priority of the second terminal is lower than a preset priority, If it is lower than the preset priority, it is determined that the second terminal satisfies the pause condition.
  • the processor is specifically configured to obtain according to a random algorithm.
  • the duration of the pause; or the processor is specifically configured to acquire the pause duration according to the terminal priority.
  • the first terminal receives the first side connection control information (SCI) sent by the second terminal, and the second SCI sent by the third terminal, and detects the first SCI and the second SCI. Whether the second terminal and the third terminal have a channel conflict, if yes, the first terminal generates a channel conflict message, and sends a channel conflict message, and the second terminal and the third terminal resend the service data according to the channel conflict message, and a channel conflict occurs between the terminals.
  • the present invention monitors the SCI through other terminals and feeds back the channel conflict message.
  • the terminal that has the channel conflict can resend the data according to the channel conflict message, which reduces the probability that different terminals simultaneously send service data, and ensures the service.
  • the correct transmission of data improves the user experience.
  • FIG. 1 is a schematic flowchart of a method for processing a channel conflict in a direct mode according to an embodiment of the present invention
  • FIG. 2 is another schematic flowchart of a method for processing a channel conflict in a direct mode according to an embodiment of the present invention
  • FIG. 3 is another schematic flowchart of a method for processing a channel conflict in a pass-through mode according to an embodiment of the present invention
  • FIG. 4 is another schematic flowchart of a method for processing a channel conflict in a direct mode according to an embodiment of the present invention
  • FIG. 5 is another schematic flowchart of a method for processing a channel conflict in a direct mode according to an embodiment of the present invention
  • FIG. 6 is a schematic structural diagram of a terminal according to an embodiment of the present invention.
  • FIG. 7 is another schematic structural diagram of a terminal according to an embodiment of the present invention.
  • FIG. 8 is another schematic structural diagram of a terminal according to an embodiment of the present invention.
  • FIG. 9 is another schematic structural diagram of a terminal according to an embodiment of the present invention.
  • an embodiment of a method for processing a channel conflict in a direct mode includes:
  • the first terminal receives the first SCI sent by the second terminal, and the second SCI sent by the third terminal.
  • the second terminal when the second terminal sends the service data, the first SCI is sent, the third terminal sends the second SCI when the service data is sent, and the first terminal can receive the first SCI sent by the second terminal, and The second SCI sent by the third terminal.
  • the SCI is the control information in the DMO communication, and the format thereof is generally SCI0. In the actual application, the format can be extended to other formats, which is not limited herein.
  • the service data sent by the second terminal and the third terminal may be the same or different, and the second terminal or the third terminal may send the service data for the specific object, or may be broadcast in the group, and For one or several specific objects, we will not repeat them here.
  • the first terminal detects whether a channel conflict occurs between the second terminal and the third terminal according to the first SCI and the second SCI, and if yes, executing step 103;
  • the SCI includes the time-frequency information of the service data sent by the terminal, and the first terminal can determine the time-frequency information occupied by the second terminal according to the first SCI, and can also determine the second SCI according to the second SCI.
  • the time-frequency information used by the three terminals to transmit the service data is compared with the time-frequency information to determine whether the second terminal and the third terminal have a channel conflict. If the conflict occurs, step 103 is performed. If there is no conflict, the second terminal and the second terminal The three terminals do not need to resend the service data.
  • the first terminal If a channel conflict occurs between the second terminal and the third terminal, the first terminal generates a channel conflict message, and sends a channel conflict message, so that the second terminal and the third terminal can resend the service data according to the channel conflict message.
  • the first terminal may generate a channel conflict message and send a channel conflict message, and the second terminal and the third terminal may resend the service data according to the channel conflict message.
  • the second terminal and the third terminal may retransmit the service data in multiple manners to resolve the channel conflict.
  • the second terminal and the third terminal respectively pause for a period of time, because the second terminal and the third terminal respectively select the time.
  • Resending the service data greatly reduces the probability that the second terminal and the third terminal simultaneously send service data, thereby ensuring that the terminal can correctly transmit the service data to the opposite end of the receiving service.
  • the second terminal and the third terminal may also retransmit the data in other manners. For details, refer to the following embodiments.
  • FIG. 2 Another embodiment of a method for processing a channel conflict in a pass-through mode in the embodiment of the present invention includes:
  • the first terminal receives the first SCI sent by the second terminal, and the second SCI sent by the third terminal.
  • the first terminal, the second terminal, and the third terminal belong to the same session group.
  • the second terminal sends service data
  • the first SCI is sent in the session group
  • the third terminal sends the service data.
  • the first terminal may receive the first SCI and the second SCI.
  • the SCI is the control information in the DMO communication, and the format thereof is generally SCI0. In actual applications, the format can be extended to other formats, which is not limited herein. It can be understood that the first terminal can be any terminal of the conversation group.
  • the first terminal determines, according to the resource location indication of the first SCI and the resource location indication of the second SCI, whether the physical side connection shared channel (PSSCH) is in the same TTI. If yes, step 203 is performed. Otherwise, step 205 is performed.
  • PSSCH physical side connection shared channel
  • the PSSCH is a service data channel in DMO communication, and is used to carry service data.
  • the SCI includes a resource location indication, where the resource location indication is used to indicate that the PSSCH for transmitting the service data is located in the first TTI, and the first terminal may determine, according to the first SCI, that the second terminal sends the service information at the first transmission time interval (Transmission Time Interval) (TTI), for example, the xth TTI, the first terminal may determine the TTI of the third terminal to send the service information according to the second SCI, for example, the yth TTI.
  • TTI Transmission Time Interval
  • x ⁇ y it indicates that the TTI of the service data is different between the second terminal and the third terminal, and the channel conflict processing procedure is not required, and step 205 is performed.
  • the first terminal generates a channel conflict message.
  • the first terminal When the first terminal detects that a channel conflict occurs between the second terminal and the third terminal, the first terminal may generate a channel conflict message.
  • the first terminal sends a channel conflict message, so that the second terminal and the third terminal resend the service data according to the channel conflict message.
  • the first terminal can send a channel conflict message in multiple manners.
  • a channel conflict message in multiple manners.
  • the sending, by the first terminal, the channel conflict message may be implemented by: the first terminal sending a channel conflict message by using a broadcast mode, where the channel conflict message includes the second terminal identifier and the third terminal Identification
  • the channel conflict message includes a second terminal identifier and a third terminal identifier
  • the second terminal may determine, according to the second terminal identifier, that the service data sent by the second terminal and the third terminal have a channel conflict, the service The data is not sent correctly, and the service data is sent back to the opposite end of the received service data.
  • the third terminal is similar to the second terminal and will not be described here.
  • the channel conflict message includes an identifier of the terminal that has a channel conflict, and may include other terminal identifiers, for example, the second terminal, the third terminal, and the fourth terminal, in addition to the second terminal identifier and the third terminal identifier.
  • a conflict occurs.
  • the channel conflict message includes the identifier of the second terminal, the identifier of the third terminal, and the identifier of the fourth terminal, so that the terminal that has the channel conflict can retransmit the service data according to the channel conflict message, and the terminal does not have the channel conflict.
  • the channel conflict message since there is no corresponding terminal identifier, the channel conflict message may be ignored or the channel conflict message may be forwarded.
  • the specific implementation method is not limited herein.
  • the number of times the first terminal broadcasts the channel conflict message may be 1 time, 2 times or other values, and is set to a smaller value by the actual situation, so as to prevent the channel conflict message from being sent by multiple terminals in avalanche manner.
  • the number of times is not limited.
  • the sending, by the first terminal, the channel conflict message may be implemented by: sending, by the first terminal, the second terminal and the third terminal by using a point-to-point (P2P) manner.
  • P2P point-to-point
  • the first terminal may send the channel conflict message to the second terminal and the third terminal in a P2P manner, and after receiving the channel conflict message, the second terminal and the third terminal respectively resend the service data. It can be understood that other terminals in the session group will not receive the channel conflict message at this time.
  • the first terminal performs other processes.
  • the second terminal and the third terminal do not have a channel conflict, the second terminal and the third terminal can correctly send the service data, and the first terminal can continue to monitor the second terminal and the third terminal at intervals.
  • the SCI is sent, or other processes are performed, which are not limited here.
  • the first terminal may monitor the SCI, and feed back the channel conflict message to the second terminal and the third terminal, where the second terminal and the third terminal may resend the service data according to the channel conflict message, and solve the second terminal and the second terminal.
  • the three terminals cannot correctly transmit service data when the channel conflicts, which improves the user experience.
  • Another embodiment of a method for processing a channel conflict in the direct mode in the embodiment of the present invention includes:
  • the second terminal sends the service data, and sends the first SCI, so that the first terminal can receive the first SCI, and detect, according to the first SCI, whether the second terminal and the third terminal have a channel conflict.
  • the first terminal, the second terminal, and the third terminal belong to the same session group, the second terminal sends service data, and sends the first SCI, and the third terminal sends service data, and broadcasts the second.
  • the first terminal may detect, according to the first SCI and the second SCI, whether the second terminal and the third terminal have a channel conflict, that is, whether the PSSCH is in the same TTI by using the first SCI and the second SCI, and if yes, indicating the second terminal If a channel conflict occurs with the third terminal, step 302 is performed. If the second terminal and the third terminal indicate that no channel conflict occurs, the channel conflict processing procedure does not need to be performed.
  • the second terminal receives a channel conflict message sent by the first terminal.
  • the first terminal sends a channel conflict message to the second terminal, and the second terminal may receive the channel conflict message sent by the first terminal.
  • the second terminal resends the service data according to the channel conflict message.
  • the second terminal After receiving the channel conflict message, the second terminal resends the service data according to the channel conflict message.
  • the second terminal and the third terminal may pause for a period of time and then resend the service data, or the second terminal pauses for a period of time, the third terminal sends the service data, or the third terminal pauses for a period of time.
  • the second terminal sends the service data, which is not limited herein.
  • the embodiment provides a specific implementation manner for the second terminal to resend the service data according to the channel conflict message when the channel conflict occurs in the session group, thereby improving the feasibility of implementing the solution.
  • the second terminal after receiving the channel conflict message sent by the first terminal, the second terminal further includes: determining, by the second terminal, whether the second terminal and the third terminal have a channel conflict according to the channel conflict message, if And triggering the step of the second terminal resending the service data according to the channel conflict message.
  • the second terminal determines whether the channel conflict message is for itself, and if yes, performs the step of resending the service data by the second terminal according to the channel conflict message, if not, the channel conflict message may be ignored, or the channel is forwarded.
  • Conflict messages which are not limited here.
  • the second terminal after receiving the channel conflict message sent by the first terminal, the second terminal further includes: determining, by the second terminal, whether the second terminal meets the suspension condition, and if yes, acquiring the pause duration, and The step of receiving the channel conflict message is started; when the timeout reaches the pause duration, the step of resending the service data by the second terminal according to the channel conflict message is triggered, and if not, the step of resending the service data by the second terminal according to the channel conflict message is triggered.
  • the second terminal can determine whether the second terminal meets the suspension condition in multiple manners. For details, refer to the following embodiments:
  • the channel conflict message includes a pause indication
  • the second terminal determining whether the second terminal meets the suspension condition includes: determining, by the second terminal, that the second terminal meets the pause condition according to the pause indication.
  • the first terminal may obtain the priorities of the second terminal and the third terminal, and compare the priorities of the two terminals. If the priority of the second terminal is lower, the sending to the second terminal includes The indicated channel conflict message is stopped, and the second terminal pauses according to the pause indication.
  • the method further includes: acquiring, by the second terminal, a priority of the third terminal; and determining, by the second terminal, whether the second terminal meets the suspension condition, the second terminal: Comparing the priority of the terminal with the priority of the third terminal, if the priority of the second terminal is lower than the priority of the third terminal, determining that the second terminal meets the suspension condition, and if the priority of the second terminal is higher than the third The priority of the terminal determines that the second terminal does not satisfy the suspension condition.
  • the second terminal may determine whether the second terminal is suspended by using a random algorithm. For example, the second terminal may set a threshold, the second terminal generates a random number, compares the random number with a preset threshold, and if it is lower than the preset threshold, determines that the second terminal meets the pause condition, if not lower than the preset The threshold determines that the second terminal does not satisfy the pause condition. The second terminal may also determine whether the second terminal is suspended by other random algorithms, which is not limited herein. It should be noted that the second terminal may also determine whether the second terminal meets the suspension condition by using a random algorithm, and the specific execution process is not limited herein.
  • the method further includes: acquiring, by the second terminal, a service priority of the second terminal and a service priority of the third terminal; and determining, by the second terminal, whether the second terminal meets the suspension.
  • the condition includes: the second terminal compares the service priority of the second terminal with the service priority of the third terminal, and if the service priority of the second terminal is lower than the service priority of the third terminal, determining that the second terminal meets the suspension.
  • the condition is that if the service priority of the second terminal is higher than the service priority of the third terminal, it is determined that the second terminal does not satisfy the suspension condition.
  • the service priority corresponds to the service data sent by the terminal, for example, the priority of the alarm information is higher than the priority of the call information.
  • the second terminal may determine whether the second terminal is suspended by using a random algorithm. For details, refer to the previous embodiment, and details are not described herein again. It should be noted that the second terminal may not compare the service priority, and only determine whether the second terminal meets the suspension condition by using a random algorithm, and the specific execution process is not limited herein.
  • determining, by the second terminal, whether the second terminal meets the suspension condition comprises: determining, by the second terminal, whether the priority of the second terminal is lower than a preset priority, and if yes, determining the second The terminal satisfies the suspension condition.
  • the second terminal has a higher priority and does not need to be suspended.
  • the service data can be directly sent.
  • the second terminal directly sends the service data, and the third terminal pauses, thereby staggering the time for sending the service data, thereby avoiding the channel conflict.
  • the second terminal can also be judged by other means, and cannot be enumerated one by one, and details are not described herein again.
  • the acquiring, by the second terminal, the pause duration includes: acquiring, by the second terminal, a pause duration according to a random algorithm.
  • the pause duration may be 1 s, 2 s, or other time values, which is not limited herein.
  • the second terminal acquires the pause duration according to the terminal priority.
  • the terminal may set a corresponding pause time period according to the terminal priority, and the second terminal may obtain the pause duration from the corresponding pause time period according to its own priority.
  • the third terminal may also acquire another pause duration according to the priority.
  • the pause time is different, and the second terminal and the third terminal may resend the service at different times. Data, thus ensuring the correct delivery of business data.
  • the re-sending the service data by the second terminal according to the channel conflict message may be implemented by: the second terminal selecting the idle frequency point to resend the service data according to the channel conflict message.
  • the second terminal may use the idle frequency to resend the service data, and avoid channel conflict with the third terminal to send the service data, so as to ensure the correct transmission of the service data, it is required that the second terminal sends the service data. , can return to the original frequency point.
  • Terminal 1 terminal 2 and terminal 3 all belong to the same session group.
  • terminal 2 transmits PSSCH1, it broadcasts SCI01.
  • terminal 3 transmits PSSCH2, it broadcasts SCI02.
  • Terminal 1 can listen to SCI01 and SCI02, according to the resource location indication of SCI01. And the resource location indication of SCI02, determine PSSCH1 Whether PSSCH1 is in the same TTI, PSSCH1 is in the 6th TTI, and PSSCH2 is in the 8th TTI, it is determined that there is no channel collision between terminal 2 and terminal 3.
  • both PSSCH1 and PSSCH2 are in the sixth TTI, terminal 2 is determined. A channel conflict occurs with the terminal 3, and both terminals cannot correctly transmit service data.
  • the terminal 1 generates and broadcasts a channel conflict message.
  • ERR1 ERR1
  • the terminal 2 and the terminal 3 respectively acquire the pause durations T1 and T2.
  • the terminal 2 transmits the service data.
  • the terminal 3 Transmit service data, solve the channel conflict and improve the user experience by staggering the time when the service data is sent.
  • Another embodiment of a method for processing a channel conflict in the direct mode in the embodiment of the present invention includes:
  • the first terminal receives the first SCI sent by the second terminal, and receives the second SCI sent by the third terminal.
  • the first terminal and the second terminal belong to the same session group, and the first terminal and the third terminal belong to different session groups, and when the second terminal sends service data and sends the first SCI, the third terminal When transmitting to the service data and transmitting the second SCI, the first terminal may receive the first SCI and the second SCI.
  • the first terminal can be any terminal of the conversation group to which the second terminal belongs.
  • the first terminal determines whether the PSSCH occupies the same time-frequency resource according to the resource location indication of the first SCI and the resource location indication of the second SCI, and if yes, step 403 is performed; if not, step 405 is performed;
  • the SCI includes a resource location indication, where the resource location indication is used to indicate that the PSSCH of the service data is located in the first TTI, for example, the resource location indication of the first SCI indicates that the PSSCH is in the xth TTI, and the resource location of the second SCI.
  • the first terminal may further determine, according to the first SCI and the second SCI, whether the PSSCH sent by the second terminal and the third terminal are at the same frequency point, for example, the PSSCH sent by the second terminal is at the mth frequency point, and the third terminal sends the PSSCH.
  • step 403 If the PSSCH sent by the second terminal and the third terminal is at a different TTI or frequency, indicating that the second terminal and the third terminal do not have a channel conflict, and the service data does not need to be resent, step 405 is performed.
  • the first terminal If a channel conflict occurs between the second terminal and the third terminal, the first terminal generates a channel conflict message.
  • the first terminal sends a channel conflict message to the second terminal and the third terminal, respectively, so that the second terminal and the third terminal resend the service data according to the channel conflict message.
  • the first terminal performs other processes.
  • Step 403 to step 405 are similar to steps 203 to 205, and are not described herein again.
  • the first terminal may send a channel conflict message, and the terminal that generates the channel conflict may resend the service data according to the channel conflict message, thereby ensuring correct transmission of the service data, and improving the user experience.
  • the method further includes: receiving, by the first terminal, the service data sent by the second terminal; after the first terminal determines that the second terminal and the third terminal have a channel conflict, the method includes: determining, by the first terminal, Whether the service data is correct, if not correct, triggering the step of generating a channel conflict message by the first terminal.
  • the second terminal and the third terminal belong to different conversation groups.
  • the second terminal may still correctly send the service data to the first terminal, and the first terminal may determine the second. Whether the service data sent by the terminal is correct. If it is incorrect, it indicates that the third terminal sends the service data with the same time-frequency. The second terminal fails to send the service data, and the second terminal needs to re-send the service data to trigger the first terminal to generate a channel conflict.
  • the third terminal sends the service data does not affect the second terminal sending the service data to the first terminal, and may not Generate a channel conflict message.
  • the first terminal may perform cyclic redundancy check on the service data. If the verification fails, the service data is determined to be incorrect. If the verification is passed, the service data is determined to be correct.
  • the second terminal of the different session group and the third terminal have a channel conflict
  • the second terminal can re-send the service data to the first terminal, and the first terminal cannot correctly receive the service. Data issues have improved the user experience.
  • the step of determining whether the service data is correct by the first terminal may further before the first terminal determines whether the second terminal and the third terminal have a channel conflict.
  • the second terminal sends the service data, and sends the first SCI, so that the first terminal can receive the first SCI, and detect, according to the first SCI, whether the second terminal and the third terminal have a channel conflict.
  • the first terminal and the second terminal belong to the same session group, the second terminal and the third terminal belong to different session groups, the second terminal sends service data and sends the first SCI, and the third terminal sends
  • the service data and the second SCI are sent
  • the first terminal may receive the first SCI and the second SCI, and detect whether the second terminal and the third terminal have a channel conflict according to the first SCI and the second SCI. If the conflict occurs, step 502 is performed. If there is no conflict, perform other processes.
  • the first terminal and the second terminal belong to different session groups respectively.
  • the third terminal belongs to the session group 2, and the first terminal and the second terminal belong to the session group 1.
  • the first terminal may distinguish the terminal in the session group from the terminal outside the session group according to the session group identifier (Group ID) in the SCI information.
  • the second terminal receives a channel conflict message sent by the first terminal.
  • the second terminal may receive a channel conflict message sent by the first terminal.
  • the second terminal resends the service data according to the channel conflict message.
  • Steps 502 to 503 are similar to steps 302 to 303, and are not described herein again.
  • the second terminal may resend the service data according to the channel conflict message, thereby improving the feasibility of implementing the solution.
  • the second terminal receives the channel rush sent by the first terminal.
  • the method further includes: determining, by the second terminal, whether the second terminal and the third terminal have a channel conflict according to the channel conflict message, and if yes, triggering the step of the second terminal resending the service data according to the channel conflict message.
  • the second terminal after receiving the channel conflict message sent by the first terminal, the second terminal further includes: determining, by the second terminal, whether the second terminal meets the suspension condition, and if yes, acquiring the pause duration, and The step of receiving the channel conflict message is started; when the timeout reaches the pause duration, the step of resending the service data by the second terminal according to the channel conflict message is triggered, and if not, the step of resending the service data by the second terminal according to the channel conflict message is triggered.
  • determining, by the second terminal, whether the second terminal meets the suspension condition comprises: determining, by the second terminal, whether the priority of the second terminal is lower than a preset priority, and if yes, determining the second terminal Meet the suspension condition.
  • the second terminal acquires the pause duration according to the terminal priority.
  • the second terminal acquires the pause duration: the second terminal acquires the pause duration according to the random algorithm; specifically, the pause duration may be 1s, 2s or other time values, which is not limited herein. .
  • the re-sending the service data by the second terminal according to the channel conflict message may be implemented by: the second terminal selecting the idle frequency point to resend the service data according to the channel conflict message.
  • the sending, by the second terminal, the service data is specifically implemented by: sending, by the second terminal, the service data to the first terminal.
  • the second terminal sends the service data to the first terminal, and the first terminal can determine whether the service data is correct, and the manner of the determination may be a cyclic redundancy check or other determination manner, which is not limited herein.
  • Terminal 1 and terminal 2 belong to session group 1, terminal 3 and terminal 4 belong to session group 2, terminal 1 and terminal 2 perform DMO communication, and terminal 3 and terminal 4 perform DMO communication;
  • the terminal 2 transmits the SCI01 and the PSSCH1 to the terminal 1, and the terminal 3 transmits the SCI02 and the PSSCH2 to the terminal 4.
  • the terminal 1 can determine whether the PSSCH1 and the PSSCH2 are in the same TTI according to the resource location indication in the SCI01 and the SCI02. If the PSSCH1 is in the 6th TTI and the PSSCH2 is in the 8th TTI, it is determined that the terminal 2 and the terminal 3 do not occur. Channel conflict
  • both PSSCH1 and PSSCH2 are in the sixth TTI, and both PSSCH1 and PSSCH2 are transmitted on the frequency point 1, it indicates that PSSCH1 and PSSCH2 occupy the same time-frequency resource, and terminal 2 and terminal 3 may not be able to correctly transmit service data.
  • the channel conflict occurs, the two terminals cannot correctly transmit the service data, and the terminal 1 broadcasts the channel conflict message.
  • the terminal 2 and the terminal 3 respectively acquire the pause durations T1 and T2, and when the timing reaches T1, the terminal 2, the service data is sent to the terminal 1.
  • the terminal 3 sends the service data to the terminal 4.
  • the specific process of the terminal 4 for processing the channel conflict is similar to the processing procedure of the terminal 1. If there are other session group terminals 5 and the terminal 6 or other terminals, the channel conflict occurs during the DMO communication, and the specific process of processing the channel conflict is performed. It is similar to the processing of terminal 1, and will not be described here.
  • the method for processing the channel conflict in the direct mode is described in the foregoing embodiment from the perspective of the method.
  • the terminal in the embodiment of the present invention is described from the perspective of the device:
  • an embodiment of the terminal in the embodiment of the present invention includes:
  • the receiving module 601 is configured to receive a first SCI sent by the second terminal, and a second SCI sent by the third terminal;
  • the detecting module 602 is configured to detect, according to the first SCI and the second SCI, whether a channel conflict occurs between the second terminal and the third terminal.
  • a generating module 603, configured to generate a channel conflict message if a channel conflict occurs between the second terminal and the third terminal;
  • the sending module 604 is configured to send a channel conflict message, so that the second terminal and the third terminal may The service data is retransmitted according to the channel conflict message.
  • the detecting module 602 is specifically configured to determine, according to the resource location indication of the first SCI and the resource location indication of the second SCI, whether the physical side connection shared channel PSSCH is in the same transmission time interval TTI. If yes, it is determined that the second terminal and the third terminal have a channel conflict, wherein the first terminal, the second terminal, and the third terminal belong to the same session group.
  • the detecting module 602 is specifically configured to determine, according to the resource location indication of the first SCI and the resource location indication of the second SCI, whether the PSSCH occupies the same time-frequency resource, and if yes, determine A channel conflict occurs between the second terminal and the third terminal, where the first terminal and the second terminal belong to the same session group, and the first terminal and the third terminal belong to different session groups.
  • the receiving module 601 is further configured to receive service data sent by the second terminal.
  • the detecting module 602 is further configured to: when the detecting module 602 determines that the second terminal and the third terminal have a channel conflict, determine whether the service data is correct, and if not, trigger the generating module 603 to generate a channel conflict message.
  • the sending module 604 is specifically configured to: send, by using a broadcast, a channel conflict message, where the channel conflict message includes a second terminal identifier and a third terminal identifier; and/or, the sending module 604 is specific. And configured to send a channel conflict message to the second terminal and the third terminal by using a P2P manner.
  • FIG. 7 another embodiment of the terminal in the embodiment of the present invention includes:
  • the sending module 701 is configured to send the service data, and send the first side connection control information SCI, so that the first terminal can receive the first SCI, and detect, according to the first SCI, whether the second terminal and the third terminal have a channel conflict.
  • the receiving module 702 is configured to receive a channel conflict message sent by the first terminal.
  • the sending module 703 is further configured to resend the service data according to the channel conflict message.
  • the terminal 700 further includes:
  • the first determining module 801 is configured to determine, according to the channel conflict message, whether the second terminal and the third terminal have a channel conflict, and if yes, trigger the sending module to resend the service data according to the channel conflict message.
  • the terminal further includes:
  • the second judging module 802 is configured to determine whether the second terminal meets the suspending condition. If yes, the triggering timing module 803 obtains the pause duration, and starts timing from the receiving channel conflict message. When the timing reaches the pause duration, the trigger sending module 701 according to the channel. The step of resending the service data by the conflict message; if not, the step of triggering the sending module 701 to resend the service data according to the channel conflict message;
  • the timing module 803 is configured to acquire a pause duration and start timing from receiving a channel conflict message.
  • the second determining module 802 is specifically configured to determine whether the priority of the second terminal is lower than a preset priority. If the priority is lower than the preset priority, determine that the second terminal meets the pause condition.
  • the timing module 803 is specifically configured to acquire a pause duration according to a random algorithm
  • the timing module 803 is specifically configured to acquire a pause duration according to the terminal priority.
  • the terminal 1, the terminal 2, and the terminal 3 all belong to the same session group.
  • the sending module 701 sends the PSSCH1
  • the SCI01 is broadcasted
  • the third terminal broadcasts the SCI02 when the PSSCH2 is sent
  • the receiving module 601 can receive the SCI01 and the SCI02
  • the detecting module 602 can Determining whether PSSCH1 and PSSCH2 are in the same TTI according to the resource location indication of SCI01 and the resource location indication of SCI02, if PSSCH1 is in the sixth TTI and PSSCH2 is in the eighth TTI, the detecting module 603 determines that terminal 2 and terminal 3 do not occur.
  • Channel conflict
  • the detecting module 603 determines that the terminal 2 and the terminal 3 have a channel conflict, and both terminals cannot correctly transmit the service data, the generating module 603 can generate a channel conflict message, and the sending module 604 broadcasts the channel.
  • the ERR1 is taken as an example.
  • the receiving module 702 receives the ERR1
  • the first determining 801 determines whether the terminal 2 and the terminal 3 have a channel conflict. If yes, the second determining module 802 determines whether the terminal 2 satisfies the pause condition, and if the pause condition is met.
  • the timing module 803 obtains the pause duration T1.
  • the sending module 701 sends the service data, and the terminal 3 acquires the pause duration T2.
  • the terminal 3 sends the service data, and the time is delayed by sending the service data. Channel conflicts improve the user experience.
  • the terminal in the embodiment of the present invention is described above from the perspective of the unit module.
  • the terminal in the embodiment of the present invention is described from the perspective of the hardware device:
  • the embodiment of the present invention provides a hardware structure of a terminal.
  • the terminal includes: at least one receiving device 901, at least one transmitting device 902, at least one processor 903, and a memory 904.
  • the receiving device 901 and the sending device are provided.
  • 902, the processor 903 and the memory 904 are connected by a bus.
  • the receiving device 901, the transmitting device 902, the processor 903, and the memory 904 in FIG. 9 take one as an example.
  • Receiving device 901 configured to receive data and control instructions
  • a sending device 902 configured to send data and control instructions
  • the processor 903 is configured to execute a program stored in the memory.
  • the processor may be a Central Processing Unit (CPU), or an Application Specific Integrated Circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of the present invention.
  • CPU Central Processing Unit
  • ASIC Application Specific Integrated Circuit
  • the memory 904 is configured to store programs and instructions.
  • the program may include program code, and the program code includes computer operation instructions.
  • the memory may include a high speed RAM memory, and may also include a non-volatile memory, such as at least one disk memory.
  • an embodiment of the terminal in the embodiment of the present invention includes:
  • the receiving device 901 is configured to receive a first SCI sent by the second terminal, and a second SCI sent by the third terminal;
  • the processor 903 is configured to detect, according to the first SCI and the second SCI, whether a channel conflict occurs between the second terminal and the third terminal.
  • the processor 903 is further configured to generate a channel conflict message if a channel conflict occurs between the second terminal and the third terminal;
  • the sending device 902 is configured to send a channel conflict message, so that the second terminal and the third terminal can resend the service data according to the channel conflict message.
  • the processor 903 is specifically configured to determine, according to the resource location indication of the first SCI and the resource location indication of the second SCI, whether the PSSCH is in the same TTI, and if yes, determine that the second terminal and the third terminal have a channel conflict, where The first terminal, the second terminal, and the third terminal belong to the same session group.
  • the processor 903 is specifically configured to determine, according to the resource location indication of the first SCI and the resource location indication of the second SCI, whether the PSSCH occupies the same time-frequency resource, and if yes, determine that the second terminal and the third terminal have a channel conflict, The first terminal and the second terminal belong to the same session group, and the first terminal and the third terminal belong to different session groups.
  • the receiving device 901 is further configured to receive service data sent by the second terminal.
  • the processor 903 is specifically configured to: when the processor 903 determines that the second terminal and the third terminal have a channel conflict, determine whether the service data is correct, and if not, trigger the processor 903 to generate a channel conflict message.
  • the sending device 902 is specifically configured to send, by using a broadcast mode, a channel conflict message, a second terminal identifier and a third terminal identifier included in the channel conflict message; and/or,
  • the sending device 902 is specifically configured to send a channel conflict message to the second terminal and the third terminal by using the P2P mode.
  • a terminal is used as the second terminal.
  • Another embodiment of the terminal in the embodiment of the present invention includes:
  • the sending device 902 is configured to send the service data, and send the first SCI, so that the first terminal can receive the first SCI, and detect, according to the first SCI, whether the second terminal and the third terminal have a channel conflict.
  • the receiving device 901 is configured to receive a channel conflict message sent by the first terminal.
  • the sending device 902 is further configured to resend the service data according to the channel conflict message.
  • the processor 903 is further configured to determine, according to the channel conflict message, whether the second terminal and the third terminal have a channel conflict, and if yes, trigger the sending device 902 to resend the service data according to the channel conflict message.
  • the processor 903 is further configured to determine whether the second terminal meets the suspension condition. If yes, the trigger processor 903 acquires the pause duration, and starts timing from receiving the channel conflict message, when the time arrives. a pause duration, the step of triggering the transmitting device 902 to resend the service data according to the channel conflict message; if not, triggering the step of the transmitting device 902 resending the service data according to the channel conflict message;
  • the processor 903 is further configured to acquire a pause duration and start timing by receiving a channel conflict message.
  • the processor 903 is specifically configured to determine whether the priority of the second terminal is lower than a preset priority. If the priority is lower than the preset priority, determine that the second terminal meets the pause condition.
  • the processor 903 is specifically configured to acquire a pause duration according to a random algorithm.
  • the processor 903 is specifically configured to acquire a pause duration according to the terminal priority.
  • the disclosed system, apparatus, and method 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 present invention 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 above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
  • the integrated unit if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium.
  • the medium includes instructions for causing 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 present invention.
  • 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. .

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Abstract

本发明实施例公开了一种在直通模式下信道冲突的处理方法以及终端，能够保证业务数据的正确传输，提高用户体验。本发明实施例方法包括：第一终端接收第二终端发送的第一SCI，和第三终端发送的第二SCI，根据第一SCI和第二SCI，检测第二终端和第三终端是否发生信道冲突；若第二终端和第三终端发生信道冲突，则第一终端生成信道冲突消息，并发送信道冲突消息，使得第二终端和第三终端可以根据信道冲突消息重新发送业务数据。本发明实施例还公开了一种终端。本发明实施例能够保证业务数据的正确传输，提高用户体验。

Description

一种在直通模式下信道冲突的处理方法以及终端
本申请要求于2015年9月21日提交中国专利局、申请号为201510605345.4、发明名称为“一种在直通模式下信道冲突的处理方法以及终端”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及无线通信领域，尤其涉及一种在直通模式下信道冲突的处理方法以及终端。
背景技术
在数字集群系统中，直通工作方式(Direct Mode Operation，DMO)是指在无蜂窝网络覆盖的情况下，终端之间直接进行通信的一种通信技术。
目前第三代合作伙伴计划(3rd Generation Partnership Project，3GPP)的设备到设备(Device-to-Device，D2D)标准规定，在DMO中终端可以随机选择时频资源发送信息。由于宽带集群DMO技术尚未成熟，在DMO模式下信道冲突的处理技术仍处于研究阶段。
在实际应用中，用于直通的时频资源有限，由于没有基站对时频资源进行调度，当一个范围内终端数量较多时，不同的终端可能选择同一时频资源进行通信，此时会发生信道冲突，导致终端无法正确接收到业务数据，影响用户体验。
发明内容
有鉴于此，本发明实施例提供了一种在直通模式下信道冲突的处理方法以及终端，能够保证业务数据的正确传输，提高用户体验。
本发明第一方面提供了一种在直通模式下信道冲突的处理方法，包括：
第一终端接收第二终端发送的第一侧连接控制信息SCI，和第三终端发送的第二SCI；
所述第一终端根据所述第一SCI和所述第二SCI，检测所述第二终端和所 述第三终端是否发生信道冲突；
若所述第二终端和所述第三终端发生信道冲突，则所述第一终端生成信道冲突消息，并发送所述信道冲突消息，使得所述第二终端和所述第三终端可以根据所述信道冲突消息重新发送业务数据。
结合本发明第一方面，本发明第一方面的第一种实现方式中，所述第一终端根据所述第一SCI和所述第二SCI，检测所述第二终端和所述第三终端是否发生信道冲突包括：
所述第一终端根据所述第一SCI的资源位置指示和所述第二SCI的资源位置指示，判断物理侧连接共享信道PSSCH是否在同一传输时间间隔TTI内，若是，则确定所述第二终端和所述第三终端发生信道冲突，若否，则确定所述第二终端和所述第三终端没有发生信道冲突，其中，所述第一终端、所述第二终端和所述第三终端属于同一会话组。
结合本发明第一方面，本发明第一方面的第二种实现方式中，所述第一终端根据所述第一SCI和所述第二SCI，检测所述第二终端和所述第三终端是否发生信道冲突包括：
所述第一终端根据所述第一SCI的资源位置指示和所述第二SCI的资源位置指示，判断PSSCH是否占用相同的时频资源，若是，则判断所述第二终端和所述第三终端发生信道冲突，其中，所述第一终端和所述第二终端属于同一会话组，所述第一终端和所述第三终端属于不同会话组。
结合本发明第一方面的第二种实现方式，本发明第一方面的第三种实现方式中，所述方法还包括：
所述第一终端接收所述第二终端发送的业务数据；
则所述第一终端判断所述第二终端和所述第三终端发生信道冲突之后包括：
所述第一终端判断所述业务数据是否正确，若不正确，则触发所述第一终端生成信道冲突消息的步骤。
结合本发明第一方面，或本发明第一方面的第一种实现方式，或本发明第一方面的第二种实现方式，或本发明第一方面的第三种实现方式，本发明第一方面的第四种实现方式中，所述第一终端发送所述信道冲突消息包括：
所述第一终端通过广播方式发送信道冲突消息，所述信道冲突消息包括的第二终端标识和第三终端标识；和/或所述第一终端通过点对点P2P方式分别向第二终端和第三终端发送信道冲突消息。
本发明第二方面提供了一种在直通模式下信道冲突的处理方法，包括：
第二终端发送业务数据，并发送第一侧连接控制信息SCI，使得第一终端可以接收到第一SCI，并根据所述第一SCI检测第二终端和第三终端是否发生信道冲突；
所述第二终端接收所述第一终端发送的信道冲突消息；
所述第二终端根据所述信道冲突消息重新发送所述业务数据。
结合本发明第二方面，本发明第二方面的第一种实现方式中，所述第二终端接收所述第一终端发送的信道冲突消息之后还包括：
所述第二终端根据所述信道冲突消息判断所述第二终端和所述第三终端是否发生信道冲突，若是，则触发所述第二终端根据所述信道冲突消息重新发送所述业务数据的步骤。
结合本发明第二方面，本发明第二方面的第二种实现方式中，所述第二终端接收所述第一终端发送的信道冲突消息之后还包括：
所述第二终端判断第二终端是否满足暂停条件，若满足，则获取暂停时长，并从接收所述信道冲突消息开始计时；当计时到达所述暂停时长，触发所述第二终端根据所述信道冲突消息重新发送所述业务数据的步骤，若不满足，则触发所述第二终端根据所述信道冲突消息重新发送所述业务数据的步骤。
结合本发明第二方面的第二种实现方式，本发明第二方面的第三种实现方式中，所述第二终端判断第二终端是否满足暂停条件包括：
所述第二终端判断所述第二终端的优先级是否低于预设优先级，若是，则确定所述第二终端满足暂停条件。
结合本发明第二方面的第二种实现方式，或本发明第二方面的第三种实现方式，本发明第二方面的第四种实现方式中，所述第二终端获取暂停时长包括：所述第二终端根据随机算法获取暂停时长；或，所述第二终端根据终端优先级获取暂停时长。
本发明第三方面提供了一种终端，所述终端作为第一终端，所述终端包括：
接收模块，用于接收第二终端发送的第一侧连接控制信息SCI，和第三终端发送的第二SCI；
检测模块，用于根据所述第一SCI和所述第二SCI，检测所述第二终端和所述第三终端是否发生信道冲突；
生成模块，用于若所述第二终端和所述第三终端发生信道冲突，则生成信道冲突消息；
发送模块，用于发送所述信道冲突消息，使得所述第二终端和所述第三终端可以根据所述信道冲突消息重新发送业务数据。
本发明第四方面提供了一种终端，所述终端作为第二终端，所述终端包括：
发送模块，用于发送业务数据，并发送第一侧连接控制信息SCI，使得第一终端可以接收到第一SCI，根据所述第一SCI检测所述第二终端和所述第三终端是否发生信道冲突；
接收模块，用于接收所述第一终端发送的信道冲突消息；
所述发送模块，还用于根据所述信道冲突消息重新发送所述业务数据。
本发明第五方面提供了一种终端，所述终端作为第一终端，所述终端包括：
接收装置、发送装置、处理器和存储器；
所述接收装置，用于接收第二终端发送的第一侧连接控制信息SCI，和第三终端发送的第二SCI；
所述处理器，用于根据所述第一SCI和所述第二SCI，检测所述第二终端和所述第三终端是否发生信道冲突；
所述处理器，还用于若所述第二终端和所述第三终端发生信道冲突，则生成信道冲突消息；
所述发送装置，用于发送所述信道冲突消息，使得所述第二终端和所述第三终端可以根据所述信道冲突消息重新发送业务数据。
结合本发明第五方面，本发明第五方面的第一种实现方式中，所述处理器具体用于根据所述第一SCI的资源位置指示和所述第二SCI的资源位置指示，判断物理侧连接共享信道PSSCH是否在同一传输时间间隔TTI内，若是，则判断所述第二终端和所述第三终端发生信道冲突，其中，所述第一终端、所述第二终端和所述第三终端属于同一会话组。
结合本发明第五方面，本发明第五方面的第二种实现方式中，所述处理器具体用于根据所述第一SCI的资源位置指示和所述第二SCI的资源位置指示，判断PSSCH是否占用相同的时频资源，若是，则判断所述第二终端和所述第三终端发生信道冲突，其中，所述第一终端和所述第二终端属于同一会话组，所述第一终端和所述第三终端属于不同会话组。
结合本发明第五方面的第二种实现方式，本发明第五方面的第三种实现方式中，
所述接收装置，还用于接收所述第二终端发送的业务数据；
所述处理器具体用于当所述处理器判断所述第二终端和所述第三终端发生信道冲突之后，判断所述业务数据是否正确，若不正确，则触发所述处理器生成信道冲突消息的步骤。
结合本发明第五方面，或本发明第五方面的第一种实现方式，或本发明第五方面的第二种实现方式，或本发明第五方面的第三种实现方式，本发明第五方面的第四种实现方式中，所述发送装置具体用于通过广播方式发送信道冲突消息，所述信道冲突消息包括的第二终端标识和第三终端标识；和/或，
所述发送装置具体用于通过点对点P2P方式分别向第二终端和第三终端发送信道冲突消息。
本发明第六方面提供了一种终端，所述终端作为第二终端，所述终端包括：
接收装置、发送装置、处理器和存储器；
所述发送装置，用于发送业务数据，并发送第一侧连接控制信息SCI，使得第一终端可以接收到第一SCI，根据所述第一SCI检测所述第二终端和所述第三终端是否发生信道冲突；
所述接收装置，用于接收所述第一终端发送的信道冲突消息；
所述发送装置，还用于根据所述信道冲突消息重新发送所述业务数据。
结合本发明第六方面，本发明第六方面的第一种实现方式中，
所述处理器，还用于根据所述信道冲突消息判断所述第二终端和所述第三终端是否发生信道冲突，若是，则触发所述发送装置根据所述信道冲突消息重新发送所述业务数据的步骤。
结合本发明第六方面，本发明第六方面的第二种实现方式中，
所述处理器，还用于判断第二终端是否满足暂停条件，若满足，则触发所述处理器获取暂停时长，并从接收所述信道冲突消息开始计时，当计时到达所述暂停时长，触发所述发送装置根据所述信道冲突消息重新发送所述业务数据的步骤；若不满足，则触发所述发送装置根据所述信道冲突消息重新发送所述业务数据的步骤；
所述处理器，还用于获取暂停时长，并从接收所述信道冲突消息开始计时。
结合本发明第六方面的第二种实现方式，本发明第六方面的第三种实现方式中，所述处理器具体用于判断所述第二终端的优先级是否低于预设优先级，若低于预设优先级，则确定所述第二终端满足暂停条件。
结合本发明第六方面的第二种实现方式，或本发明第六方面的第三种实现方式，本发明第六方面的第四种实现方式中，所述处理器具体用于根据随机算法获取暂停时长；或，所述处理器具体用于根据终端优先级获取暂停时长。
从以上技术方案可以看出，本发明实施例具有以下优点：
本发明实施例中，第一终端接收第二终端发送的第一侧连接控制信息(Sidelink Control Information，SCI)，和第三终端发送的第二SCI，根据第一SCI和第二SCI，检测第二终端和第三终端是否发生信道冲突，若是，则第一终端生成信道冲突消息，并发送信道冲突消息，第二终端和第三终端根据信道冲突消息重新发送业务数据，当终端间发生信道冲突导致无法正常收发业务数据时，本发明通过其他终端监测SCI，并反馈信道冲突消息，发生信道冲突的终端根据信道冲突消息可以重新发送数据，降低了不同终端同时发送业务数据的概率，保证了业务数据的正确传输，提高了用户体验。
附图说明
图1为本发明实施例中在直通模式下信道冲突的处理方法的一个流程示意图；
图2为本发明实施例中在直通模式下信道冲突的处理方法的另一个流程示意图；
图3为本发明实施例中在直通模式下信道冲突的处理方法的另一个流程示意图；
图4为本发明实施例中在直通模式下信道冲突的处理方法的另一个流程示意图；
图5为本发明实施例中在直通模式下信道冲突的处理方法的另一个流程示意图；
图6为本发明实施例中终端的一个结构示意图；
图7为本发明实施例中终端的另一个结构示意图；
图8为本发明实施例中终端的另一个结构示意图；
图9为本发明实施例中终端的另一个结构示意图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
请参阅图1，本发明实施例中在直通模式下信道冲突的处理方法的一个实施例包括：
101、第一终端接收第二终端发送的第一SCI，和第三终端发送的第二SCI；
本实施例中，在DMO模式下，第二终端发送业务数据时发送第一SCI，第三终端在发送业务数据时发送第二SCI，第一终端可以接收第二终端发送的第一SCI，和第三终端发送的第二SCI。SCI是DMO通信中的控制信息，其格式一般为SCI0，在实际应用中，其格式还可以扩展为其他格式，具体此处不作限定。
需要说明的是，第二终端和第三终端发送的业务数据可以相同，也可以不同，第二终端或第三终端发送业务数据可以是针对特定对象发送，也可以是在组内广播，并不针对一个或几个特定对象，此处不再赘述。
102、第一终端根据第一SCI和第二SCI，检测第二终端和第三终端是否发生信道冲突，若是，则执行步骤103；
其中，SCI包括终端发送业务数据的时频信息，第一终端根据第一SCI可以判断第二终端发送业务数据所占用的时频信息，还可以根据第二SCI判断第 三终端发送业务数据所占用的时频信息，通过比较时频信息，判断第二终端和第三终端是否发生了信道冲突，若冲突，则执行步骤103，若未冲突，则第二终端和第三终端无需重新发送业务数据。
103、若第二终端和第三终端发生信道冲突，则第一终端生成信道冲突消息，并发送信道冲突消息，使得第二终端和第三终端可以根据信道冲突消息重新发送业务数据。
若第二终端和第三终端发生信道冲突，则第一终端可以生成信道冲突消息，并发送信道冲突消息，第二终端和第三终端可以根据信道冲突消息重新发送业务数据。
需要说明的是，第二终端和第三终端可以通过多种方式重新发送业务数据以解决信道冲突，例如第二终端和第三终端分别暂停一段时间，由于第二终端和第三终端分别选择时间重新发送业务数据，极大地降低了第二终端和第三终端同时发送业务数据的概率，从而保证终端能够将业务数据正确发送到接收业务的对端。第二终端和第三终端还可以通过其他方式进行重新发送数据，具体可参阅以下实施例。
下面对于本发明在不同场景中发生信道冲突时的处理方法分别进行介绍：
一、组内信道冲突：
下面从第一终端侧对会话组内处理信道冲突的方法进行介绍，请参阅图2，本发明实施例中在直通模式下信道冲突的处理方法的另一个实施例包括：
201、第一终端接收第二终端发送的第一SCI，和第三终端发送的第二SCI；
本实施例中，在DMO模式下，第一终端、第二终端和第三终端属于同一会话组，当第二终端发送业务数据，并在会话组内发送第一SCI，第三终端发送业务数据时，在会话组内发送第二SCI，第一终端可以接收第一SCI和第二SCI。其中，SCI是DMO通信中的控制信息，其格式一般为SCI0，在实际应用中，其格式还可以扩展为其他格式，具体此处不作限定。可以理解的是，第一终端可以是会话组的任一终端。
202、第一终端根据第一SCI的资源位置指示和第二SCI的资源位置指示，判断物理侧连接共享信道(Physical Sidelink Shared Channel，PSSCH)是否在同一TTI内，若是，则执行步骤203，若否，则执行步骤205。
具体的，PSSCH是DMO通信中的业务数据信道，用于承载业务数据。SCI包括资源位置指示，资源位置指示用于指示传输业务数据的PSSCH位于第几个TTI，第一终端可以根据第一SCI确定第二终端发送业务信息是在第几个传输时间间隔(Transmission Time Interval，TTI)，例如，第x个TTI，同理第一终端可以根据第二SCI确定第三终端发送业务信息的TTI，例如，第y个TTI。若x＝y，则表明第二终端和第三终端使用了相同的TTI发送数据，即同时在会话组内发送业务数据，此时第二终端和第三终端都无法将业务数据正确发送到接收业务数据的对端，即发生信道冲突，执行步骤203，若x≠y，则表明第二终端和第三终端发送业务数据的TTI不同，无需执行信道冲突处理流程，执行步骤205。
203、第一终端生成信道冲突消息；
当第一终端检测到第二终端和第三终端发生信道冲突时，第一终端可以生成信道冲突消息。
204、第一终端发送信道冲突消息，使得第二终端和第三终端根据信道冲突消息重新发送业务数据；
第一终端可以通过多种方式发送信道冲突消息，具体可参阅以下实施例：
可选的，在本发明的一些实施例中，第一终端发送信道冲突消息具体可以通过以下方式实现：第一终端通过广播方式发送信道冲突消息，信道冲突消息包括第二终端标识和第三终端标识；
具体的，信道冲突消息包括第二终端标识和第三终端标识，第二终端接收信道冲突消息后，可以根据第二终端标识确定第二终端发送的业务数据和第三终端发生了信道冲突，业务数据没有正确发送出去，重新向接收业务数据的对端发送业务数据。第三终端和第二终端相似，此处不再赘述。
需要说明的是，信道冲突消息包括发生信道冲突的终端的标识，除了第二终端标识和第三终端标识之外，还可能包括其他终端标识，例如，第二终端、第三终端和第四终端发生了冲突，信道冲突消息包括第二终端的标识、第三终端的标识和第四终端的标识，使得发生信道冲突的终端能够根据信道冲突消息重新发送业务数据，而没有发生信道冲突的终端接收信道冲突消息后，由于没有对应的终端标识，因此可以忽略该信道冲突消息，或转发该信道冲突消息， 具体执行方法此处不作限定。
需要说明的是，第一终端广播信道冲突消息的次数可以为1次，2次或其他值，由实际情况设定为一个较小值，以避免信道冲突消息由多个终端雪崩式发送，具体次数不作限定。
可选的，在本发明的一些实施例中，第一终端发送信道冲突消息具体可以通过以下方式实现：第一终端通过点对点(Point to Point，P2P)方式分别向第二终端和第三终端发送信道冲突消息。
具体的，第一终端可以将信道冲突消息以P2P方式分别发送给第二终端和第三终端，第二终端和第三终端接收信道冲突消息后，分别重新发送业务数据。可以理解的是，此时会话组内的其他终端不会接收到信道冲突消息。
205、第一终端执行其他流程。
若第二终端和第三终端没有发生信道冲突，表明第二终端和第三终端可以正确发送业务数据，无需执行信道冲突处理流程，第一终端可以隔一段时间继续监听第二终端和第三终端发送的SCI，或执行其他流程，此处不作限定。
本实施例中，第一终端可以监测SCI，并反馈信道冲突消息给第二终端和第三终端，第二终端和第三终端可以根据信道冲突消息重新发送业务数据，解决了第二终端和第三终端在信道冲突时无法正确发送业务数据的问题，提高了用户体验。
下面从第二终端侧对会话组内处理信道冲突的方法进行介绍，请参阅图3，本发明实施例中在直通模式下信道冲突的处理方法的另一个实施例包括：
301、第二终端发送业务数据，并发送第一SCI，使得第一终端可以接收到第一SCI，并根据第一SCI检测第二终端和第三终端是否发生信道冲突；
本实施例中，在DMO模式下，第一终端、第二终端和第三终端属于同一会话组，第二终端发送业务数据，并发送第一SCI，第三终端发送业务数据，并广播第二SCI，第一终端可以根据第一SCI和第二SCI检测第二终端和第三终端是否发生信道冲突，即通过第一SCI和第二SCI判断PSSCH是否在相同TTI，若是，则表明第二终端和第三终端发生信道冲突，则执行步骤302，若否，则第二终端和第三终端表明未发生信道冲突，则无需执行信道冲突处理流程。
302、第二终端接收第一终端发送的信道冲突消息；
当第二终端和第三终端发生信道冲突时，第一终端向第二终端发送信道冲突消息，第二终端可以接收第一终端发送的信道冲突消息。
303、第二终端根据信道冲突消息重新发送业务数据。
第二终端接收信道冲突消息后，根据信道冲突消息重新发送业务数据。在实际应用中，第二终端和第三终端可以分别暂停一段时间，再重新发送业务数据，或是，第二终端暂停一段时间，第三终端发送业务数据，或是，第三终端暂停一段时间，第二终端发送业务数据，具体此处不作限定。
本实施例提供了在会话组内发生信道冲突时，第二终端根据信道冲突消息重新发送业务数据的具体实现方式，提高了方案实施的可行性。
可选的，在本发明的一些实施例中，第二终端接收第一终端发送的信道冲突消息之后还包括：第二终端根据信道冲突消息判断第二终端和第三终端是否发生信道冲突，若是，则触发第二终端根据信道冲突消息重新发送业务数据的步骤。
具体的，第二终端接收信道冲突消息后，判断信道冲突消息是否针对自身，若是，则执行第二终端根据信道冲突消息重新发送业务数据的步骤，若不是，可以忽略信道冲突消息，或转发信道冲突消息，具体此处不作限定。
可选的，在本发明的一些实施例中，第二终端接收第一终端发送的信道冲突消息之后还包括：第二终端判断第二终端是否满足暂停条件，若满足，则获取暂停时长，并从接收信道冲突消息开始计时；当计时到达暂停时长，触发第二终端根据信道冲突消息重新发送业务数据的步骤，若不满足，则触发第二终端根据信道冲突消息重新发送业务数据的步骤。
具体的，第二终端可以通过多种方式判断第二终端是否满足暂停条件，具体可参阅以下实施例：
可选的，在本发明的一些实施例中，信道冲突消息包括暂停指示，第二终端判断第二终端是否满足暂停条件包括：第二终端根据暂停指示确定第二终端满足暂停条件。
具体的，第一终端可以获取第二终端和第三终端的优先级，将上述两个终端的优先级进行比较，若第二终端的优先级较低，则向第二终端发送的包括暂 停指示的信道冲突消息，第二终端根据暂停指示进行暂停。
可选的，在本发明的一些实施例中，所述方法还包括：第二终端获取第三终端的优先级；则第二终端判断第二终端是否满足暂停条件包括：第二终端将第二终端的优先级和第三终端的优先级进行比较，若第二终端的优先级低于第三终端的优先级，则确定第二终端满足暂停条件，若第二终端的优先级高于第三终端的优先级，则确定第二终端不满足暂停条件。
需要说明的是，若第二终端和第三终端的优先级相同，第二终端可以通过随机算法决定第二终端是否暂停。例如，第二终端可以设定一个阈值，第二终端生成随机数，将随机数与预设阈值进行比较，若低于预设阈值，则确定第二终端满足暂停条件，若不低于预设阈值，则确定第二终端不满足暂停条件。第二终端还可以通过其他随机算法决定第二终端是否暂停，此处不作限定。需要说明的是，第二终端还可以不比较优先级，只通过随机算法判断第二终端是否满足暂停条件，具体执行过程此处不作限定。
可选的，在本发明的一些实施例中，所述方法还包括：第二终端获取第二终端的业务优先级和第三终端的业务优先级；则第二终端判断第二终端是否满足暂停条件包括：第二终端将第二终端的业务优先级和第三终端的业务优先级进行比较，若第二终端的业务优先级低于第三终端的业务优先级，则确定第二终端满足暂停条件，若第二终端的业务优先级高于第三终端的业务优先级，则确定第二终端不满足暂停条件。
具体的，业务优先级与终端发送的业务数据对应，例如，报警信息的优先级高于通话信息的优先级。当第二终端的业务优先级和第三终端的业务优先级相同时，第二终端可以通过随机算法决定第二终端是否暂停，具体可参阅上一个实施例，此处不再赘述。需要说明的是，第二终端还可以不比较业务优先级，只通过随机算法判断第二终端是否满足暂停条件，具体执行过程此处不作限定。
可选的，在本发明的一些实施例中，第二终端判断第二终端是否满足暂停条件包括：第二终端判断第二终端的优先级是否低于预设优先级，若是，则确定第二终端满足暂停条件。
具体的，若第二终端的优先级低于预设优先级，则表明第二终端的优先级 较低，需要暂停，若第二终端的优先级不低于预设优先级，则表明第二终端的优先级较高，不需要暂停，可以直接发送业务数据。当第二终端高于预设优先级，第三终端低于预设优先级时，第二终端直接发送业务数据，第三终端暂停，从而错开了发送业务数据的时间，避免了信道冲突。
可以理解的是，在实际应用中，第二终端还可以通过其他方式进行判断，无法一一列举，此处不再赘述。
进一步的，在本发明的一些实施例中，第二终端获取暂停时长包括：第二终端根据随机算法获取暂停时长。具体的，暂停时长可以是1s，2s或其他时间值，具体此处不作限定。
或，在本发明的一些实施例中，第二终端根据终端优先级获取暂停时长。具体的，终端可以根据终端优先级设定相应的暂停时间段，第二终端可以根据自身的优先级从对应的暂停时间段中获取暂停时长。同理，第三终端也可以根据优先级获取另一暂停时长，当第二终端和第三终端的优先级不同时，暂停时间不同，第二终端和第三终端就可以在不同时间重新发送业务数据，从而保证了业务数据的正确发送。
可选的，在本发明的一些实施例中，第二终端根据信道冲突消息重新发送业务数据具体可以通过以下方式实现：第二终端根据信道冲突消息选取空闲频点重新发送业务数据。
具体的，第二终端可以利用空闲频点重新发送该业务数据，避免和第三终端发送业务数据发生信道冲突，以保证该业务数据的正确发送，需要说明的是，第二终端发送业务数据后，可以返回原频点。
需要说明的是，当会话组内的其他终端发生信道冲突时，处理信道冲突方法与图2或图3所示实施例相似，以此可类推第四终端或其他终端处理信道冲突的过程，此处不再赘述。
为便于理解，下面以一具体应用场景对本发明实施例中信道冲突的处理方法进行详细介绍：
终端1、终端2和终端3都属于同一个会话组，终端2发送PSSCH1时，广播SCI01，终端3在发送PSSCH2时，广播SCI02，终端1可以侦听到SCI01和SCI02，根据SCI01的资源位置指示和SCI02的资源位置指示，判断PSSCH1 和PSSCH2是否在同一TTI内，假设PSSCH1在第6个TTI，PSSCH2在第8个TTI，则确定终端2和终端3没有发生信道冲突，当PSSCH1和PSSCH2都在第6个TTI时，确定终端2和终端3发生信道冲突，两个终端都无法正确发送业务数据；
终端1生成并广播信道冲突消息，以ERR1为例，终端2和终端3接收ERR1后，分别获取暂停时长T1和T2，当计时到达T1时，终端2发送业务数据，当计时到达T2时，终端3发送业务数据，通过错开发送业务数据的时刻，解决了信道冲突，提高了用户体验。
若会话组内还有终端4或其他终端，处理信道冲突的具体过程与终端1的处理过程相似，此处不再赘述。
二、组间信道冲突：
下面从第一终端侧对不同会话组之间信道冲突的处理方法进行介绍，请参阅图4，本发明实施例中在直通模式下信道冲突的处理方法的另一个实施例包括：
401、第一终端接收第二终端发送的第一SCI，并接收第三终端发送的第二SCI；
本实施例中，在DMO模式下，第一终端和第二终端属于同一会话组，第一终端和第三终端属于不同会话组，当第二终端发送业务数据并发送第一SCI，第三终端发送给业务数据并发送第二SCI时，第一终端可以接收到第一SCI和第二SCI。可以理解的是，第一终端可以是第二终端所属会话组的任一终端。
402、第一终端根据第一SCI的资源位置指示和第二SCI的资源位置指示，判断PSSCH是否占用相同的时频资源，若是，则执行步骤403，若否，则执行步骤405；
具体的，SCI包括资源位置指示，资源位置指示用于指示传输业务数据的PSSCH位于第几个TTI，例如，第一SCI的资源位置指示指出PSSCH在第x个TTI中，第二SCI的资源位置指示指出PSSCH在第y个TTI中，若x＝y，则表明第二终端和第三终端使用了相同的TTI，若x≠y，则表明第二终端和第三终端使用了不同的TTI；
第一终端还可以根据第一SCI和第二SCI，判断第二终端和第三终端发送的PSSCH是否在相同频点，例如，第二终端发送的PSSCH在第m频点，第三终端发送PSSCH在第n频点，若m＝n，则表明第二终端和第三终端使用了相同的频点，若x≠y，则表明第二终端和第三终端使用了不同的频点；
若第二终端和第三终端发送的PSSCH在相同的TTI以及相同的频点，则确定第二终端和第三终端发送业务数据占用了相同的时频资源，第二终端和第三终端发生了信道冲突，执行步骤403，若第二终端和第三终端发送的PSSCH在不同的TTI或频点，表明第二终端和第三终端没有发生信道冲突，无需重新发送业务数据，执行步骤405。
403、若第二终端和第三终端发生信道冲突，第一终端生成信道冲突消息；
404、第一终端分别向第二终端和第三终端发送信道冲突消息，使得第二终端和第三终端根据信道冲突消息重新发送业务数据；
405、第一终端执行其他流程。
步骤403至步骤405，与步骤203至步骤205相似，此处不再赘述。
本实施例中，当不同会话组的终端发生信道冲突时，第一终端可以发送信道冲突消息，发生信道冲突的终端可以根据信道冲突消息重新发送业务数据，保证了业务数据的正确发送，提高了用户体验。
可选的，在本发明的一些实施例中，方法还包括：第一终端接收第二终端发送的业务数据；第一终端判断第二终端和第三终端发生信道冲突之后包括：第一终端判断业务数据是否正确，若不正确，则触发第一终端生成信道冲突消息的步骤。
本实施例中，第二终端和第三终端属于不同的会话组，当第二终端和第三终端的地理位置相隔较远时，同时由于信道本身具有一定的正交性，在第二终端向第一终端发送业务数据所用时频资源，和第三终端发送业务数据所用时频资源相同的情况下，第二终端仍然有可能将业务数据正确发送到第一终端，第一终端可以判断第二终端发送的业务数据是否正确，若不正确，则表明第三终端发送业务数据使用的相同时频造成第二终端发送业务数据失败，第二终端需要重新发送业务数据，触发第一终端生成信道冲突消息的步骤，若正确，则表明第三终端发送业务数据没有影响第二终端向第一终端发送业务数据，可以不 生成信道冲突消息。具体的，第一终端可以对业务数据进行循环冗余码校验，若校验未通过，则确定业务数据不正确，若校验通过，则确定业务数据正确。
当不同会话组的第二终端和第三终端发生信道冲突时，导致第一终端无法正确获取业务数据时，第二终端可以重新向第一终端发送业务数据，解决了第一终端无法正确接收业务数据的问题，提高了用户体验。
需要说明的是，第一终端判断业务数据是否正确的步骤还可以在第一终端判断第二终端和第三终端是否发生信道冲突之前。
下面从第二终端侧对不同会话组之间信道冲突的处理方法进行介绍，请参阅图5，本发明实施例中在直通模式下信道冲突的处理方法的另一个实施例包括：
501、第二终端发送业务数据，并发送第一SCI，使得第一终端可以接收到第一SCI，并根据第一SCI检测第二终端和第三终端是否发生信道冲突；
本实施例中，在DMO模式下，第一终端和第二终端属于同一会话组，第二终端和第三终端属于不同会话组，第二终端发送业务数据并发送第一SCI，第三终端发送业务数据并发送第二SCI，第一终端可以接收到第一SCI和第二SCI，根据第一SCI和第二SCI检测第二终端和第三终端是否发生信道冲突，若冲突，执行步骤502，若不冲突，则执行其他流程。
其中，第一终端和第二终端，与第三终端分别属于不同会话组，举例来说，第三终端属于会话组2，第一终端和第二终端属于会话组1。第一终端可以根据SCI信息中的会话组标识(Group ID)来区分会话组内的终端和会话组外的终端。
502、第二终端接收第一终端发送的信道冲突消息；
当第二终端和第三终端发生信道冲突时，第二终端可以接收第一终端发送的信道冲突消息。
503、第二终端根据信道冲突消息重新发送业务数据。
步骤502至步骤503，与步骤302至步骤303相似，此处不再赘述。
本实施例中，当不同会话组的第二终端和第三终端发生信道冲突时，第二终端可以根据信道冲突消息重新发送业务数据，提高了方案实施的可行性。
可选的，在本发明的一些实施例中，第二终端接收第一终端发送的信道冲 突消息之后还包括：第二终端根据信道冲突消息判断第二终端和第三终端是否发生信道冲突，若是，则触发第二终端根据信道冲突消息重新发送业务数据的步骤。
可选的，在本发明的一些实施例中，第二终端接收第一终端发送的信道冲突消息之后还包括：第二终端判断第二终端是否满足暂停条件，若满足，则获取暂停时长，并从接收信道冲突消息开始计时；当计时到达暂停时长，触发第二终端根据信道冲突消息重新发送业务数据的步骤，若不满足，则触发第二终端根据信道冲突消息重新发送业务数据的步骤。
进一步的，在本发明的一些实施例中，第二终端判断第二终端是否满足暂停条件包括：第二终端判断第二终端的优先级是否低于预设优先级，若是，则确定第二终端满足暂停条件。
或，在本发明的一些实施例中，第二终端根据终端优先级获取暂停时长。
进一步的，在本发明的一些实施例中，第二终端获取暂停时长包括：第二终端根据随机算法获取暂停时长；具体的，暂停时长可以是1s，2s或其他时间值，具体此处不作限定。
可选的，在本发明的一些实施例中，第二终端根据信道冲突消息重新发送业务数据具体可以通过以下方式实现：第二终端根据信道冲突消息选取空闲频点重新发送业务数据。
可选的，在本发明的一些实施例中，第二终端发送业务数据具体通过以下方式实现：第二终端向第一终端发送业务数据。
具体的，第二终端向第一终端发送业务数据，第一终端可以判断业务数据是否正确，判断方式可以是通过循环冗余校验，或是其他判断方式，具体此处不作限定。
需要说明的是，以上可选实施例与图3所示可选实施例相似，此处不再赘述。
为便于理解，下面以一具体应用场景对本发明实施例中另一种信道冲突的处理方法进行详细说明：
终端1和终端2属于会话组1，终端3和终端4都属于会话组2，终端1和终端2进行DMO通信，终端3和终端4进行DMO通信；
终端2向终端1发送SCI01以及PSSCH1，终端3向终端4发送SCI02以及PSSCH2，
终端1可以根据侦听到SCI01和SCI02中的资源位置指示，判断PSSCH1和PSSCH2是否在同一TTI内，假设PSSCH1在第6个TTI，PSSCH2在第8个TTI，则确定终端2和终端3没有发生信道冲突；
当PSSCH1和PSSCH2都在第6个TTI，且PSSCH1和PSSCH2都在频点1上发送时，表明PSSCH1和PSSCH2占用了相同的时频资源，终端2和终端3可能无法正确的发送业务数据，终端1对终端2发送的业务数据进行循环冗余码校验，若校验通过，则表明上述终端使用相同的时频资源没有影响到业务数据发送，若校验未通过，则确定终端2和终端3发生信道冲突，两个终端无法正确发送业务数据，终端1广播信道冲突消息，以ERR1为例，终端2和终端3接收ERR1后，分别获取暂停时长T1和T2，当计时到达T1时，终端2向终端1发送业务数据，当计时到达T2时，终端3向终端4发送业务数据，通过错开发送业务数据时间，解决了信道冲突导致终端1不能正确接收业务数据的问题，提高了用户体验。
需要说明的是，终端4处理信道冲突的具体过程与终端1的处理过程相似，若还有其他会话组终端5和终端6或其他终端，在DMO通信时造成信道冲突，处理信道冲突的具体过程与终端1的处理过程相似，此处不再赘述。
以上从方法角度对本发明实施例中在直通模式下信道冲突的处理方法进行了描述，下面从装置角度对本发明实施例中终端进行描述：
下面以终端600作为第一终端进行介绍，请参阅图6，本发明实施例中终端的一个实施例包括：
接收模块601，用于接收第二终端发送的第一SCI，和第三终端发送的第二SCI；
检测模块602，用于根据第一SCI和第二SCI，检测第二终端和第三终端是否发生信道冲突；
生成模块603，用于若第二终端和第三终端发生信道冲突，则生成信道冲突消息；
发送模块604，用于发送信道冲突消息，使得第二终端和第三终端可以根 据信道冲突消息重新发送业务数据。
可选的，在本发明的一些实施例中，检测模块602具体用于根据第一SCI的资源位置指示和第二SCI的资源位置指示，判断物理侧连接共享信道PSSCH是否在同一传输时间间隔TTI内，若是，则判断第二终端和第三终端发生信道冲突，其中，第一终端、第二终端和第三终端属于同一会话组。
可选的，在本发明的一些实施例中，检测模块602具体用于根据第一SCI的资源位置指示和第二SCI的资源位置指示，判断PSSCH是否占用相同的时频资源，若是，则判断第二终端和第三终端发生信道冲突，其中，第一终端和第二终端属于同一会话组，第一终端和第三终端属于不同会话组。
可选的，在本发明的一些实施例中，
接收模块601，还用于接收第二终端发送的业务数据；
检测模块602，还用于当检测模块602判断第二终端和第三终端发生信道冲突之后，判断业务数据是否正确，若不正确，则触发生成模块603生成信道冲突消息的步骤。
可选的，在本发明的一些实施例中，发送模块604具体用于通过广播方式发送信道冲突消息，信道冲突消息包括的第二终端标识和第三终端标识；和/或，发送模块604具体用于通过P2P方式分别向第二终端和第三终端发送信道冲突消息。
下面以终端700作为第二终端进行介绍，请参阅图7，本发明实施例中终端的另一个实施例包括：
发送模块701，用于发送业务数据，并发送第一侧连接控制信息SCI，使得第一终端可以接收到第一SCI，根据第一SCI检测第二终端和第三终端是否发生信道冲突；
接收模块702，用于接收第一终端发送的信道冲突消息；
发送模块703，还用于根据信道冲突消息重新发送业务数据。
请参阅图8，可选的，在本发明的一些实施例中，终端700还包括：
第一判断模块801，用于根据信道冲突消息判断第二终端和第三终端是否发生信道冲突，若是，则触发发送模块根据信道冲突消息重新发送业务数据的步骤。
可选的，在本发明的一些实施例中，终端还包括：
第二判断模块802，用于判断第二终端是否满足暂停条件，若满足，则触发计时模块803获取暂停时长，并从接收信道冲突消息开始计时，当计时到达暂停时长，触发发送模块701根据信道冲突消息重新发送业务数据的步骤；若不满足，则触发发送模块701根据信道冲突消息重新发送业务数据的步骤；
计时模块803，用于获取暂停时长，并从接收信道冲突消息开始计时。
可选的，在本发明的一些实施例中，
第二判断模块802具体用于判断第二终端的优先级是否低于预设优先级，若低于预设优先级，则确定第二终端满足暂停条件。
可选的，在本发明的一些实施例中，
计时模块803具体用于根据随机算法获取暂停时长；
或，
计时模块803具体用于根据终端优先级获取暂停时长。
为便于理解，下面以一具体应用场景对本发明实施例中终端各模块之间的交互进行详细介绍：
终端1、终端2和终端3都属于同一个会话组，发送模块701发送PSSCH1时，广播SCI01，第三终端在发送PSSCH2时，广播SCI02，接收模块601可以接收到SCI01和SCI02，检测模块602可以根据SCI01的资源位置指示和SCI02的资源位置指示，判断PSSCH1和PSSCH2是否在同一TTI内，假设PSSCH1在第6个TTI，PSSCH2在第8个TTI，则检测模块603确定终端2和终端3没有发生信道冲突；
当PSSCH1和PSSCH2都在第6个TTI发送时，检测模块603确定终端2和终端3发生信道冲突，两个终端都无法正确发送业务数据，生成模块603可以生成信道冲突消息，发送模块604广播信道冲突消息，以ERR1为例，接收模块702接收ERR1后，第一判断摸801判断终端2和终端3是否发生信道冲突，若是，第二判断模块802判断终端2是否满足暂停条件，若满足暂停条件，则计时模块803获取暂停时长T1，当计时到达T1时，发送模块701发送业务数据，终端3获取暂停时长T2，当计时到达T2时，终端3发送业务数据，通过错开发送业务数据时间，解决了信道冲突，提高了用户体验。
需要说明的是，终端3的各模块之间的交互和终端2相似，可参考图7或图8所示实施例或可选实施例，此处不再赘述。
以上从单元模块的角度对本发明实施例中的终端进行了描述，下面从硬体装置的角度对本发明实施例中的终端进行了描述：
本发明实施例提供一种终端的硬件结构，请参阅图9，该终端包括：至少一个接收装置901、至少一个发送装置902、至少一个处理器903以及存储器904，其中，接收装置901、发送装置902、处理器903以及存储器904通过总线连接，图9中接收装置901、发送装置902、处理器903以及存储器904以一个为例，
接收装置901，用于接收数据以及控制指令；
发送装置902，用于发送数据以及控制指令；
处理器903，用于执行存储器存储的程序。具体的，处理器可能是一个中央处理器(Central Processing Unit，CPU)，或者是特定集成电路(Application Specific Integrated Circuit，ASIC)，或者是配置成实施本发明实施例的一个或多个集成电路。
存储器904，用于存储程序以及指令。具体的，程序可以包括程序代码，上述程序代码包括计算机操作指令。存储器可以包括高速RAM存储器，也可以包括非易失性存储器(Non-Volatile Memory)，例如至少一个磁盘存储器。
以下结合硬件对本发明实施例中的终端作为第一终端进行详细描述，请参阅图9，本发明实施例中终端的一个实施例，包括：
接收装置901、发送装置902、处理器903及存储器904，处理器903和存储器904通过接收装置901接收终端外部信息，处理器903和存储器904通过发送装置902将信息发射到终端外部；
接收装置901，用于接收第二终端发送的第一SCI，和第三终端发送的第二SCI；
处理器903，用于根据第一SCI和第二SCI，检测第二终端和第三终端是否发生信道冲突；
处理器903，还用于若第二终端和第三终端发生信道冲突，则生成信道冲突消息；
发送装置902，用于发送信道冲突消息，使得第二终端和第三终端可以根据信道冲突消息重新发送业务数据。
其中，处理器903具体用于根据第一SCI的资源位置指示和第二SCI的资源位置指示，判断PSSCH是否在同一TTI内，若是，则判断第二终端和第三终端发生信道冲突，其中，第一终端、第二终端和第三终端属于同一会话组。
其中，处理器903具体用于根据第一SCI的资源位置指示和第二SCI的资源位置指示，判断PSSCH是否占用相同的时频资源，若是，则判断第二终端和第三终端发生信道冲突，其中，第一终端和第二终端属于同一会话组，第一终端和第三终端属于不同会话组。
其中，接收装置901，还用于接收第二终端发送的业务数据；
处理器903具体用于当处理器903判断第二终端和第三终端发生信道冲突之后，判断业务数据是否正确，若不正确，则触发处理器903生成信道冲突消息的步骤。
其中，发送装置902具体用于通过广播方式发送信道冲突消息，信道冲突消息包括的第二终端标识和第三终端标识；和/或，
发送装置902具体用于通过P2P方式分别向第二终端和第三终端发送信道冲突消息。
请参阅图9，下面以终端作为第二终端进行介绍，本发明实施例中终端的另一个实施例，包括：
接收装置901、发送装置902、处理器903和存储器904；
发送装置902，用于发送业务数据，并发送第一SCI，使得第一终端可以接收到第一SCI，根据第一SCI检测第二终端和第三终端是否发生信道冲突；
接收装置901，用于接收第一终端发送的信道冲突消息；
发送装置902，还用于根据信道冲突消息重新发送业务数据。
其中，处理器903，还用于根据信道冲突消息判断第二终端和第三终端是否发生信道冲突，若是，则触发发送装置902根据信道冲突消息重新发送业务数据的步骤。
其中，处理器903，还用于判断第二终端是否满足暂停条件，若满足，则触发处理器903获取暂停时长，并从接收信道冲突消息开始计时，当计时到达 暂停时长，触发发送装置902根据信道冲突消息重新发送业务数据的步骤；若不满足，则触发发送装置902根据信道冲突消息重新发送业务数据的步骤；
处理器903，还用于获取暂停时长，并从接收信道冲突消息开始计时。
其中，处理器903具体用于判断第二终端的优先级是否低于预设优先级，若低于预设优先级，则确定第二终端满足暂停条件。
其中，处理器903具体用于根据随机算法获取暂停时长；或，
处理器903具体用于根据终端优先级获取暂停时长。
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。
在本申请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，在本发明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。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。
所述集成的单元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，本发明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全部或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)执行本发明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(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，以上实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的精神和范围。

Claims (22)

  1. 一种在直通模式下信道冲突的处理方法，其特征在于，包括：
    第一终端接收第二终端发送的第一侧连接控制信息SCI，和第三终端发送的第二SCI；
    所述第一终端根据所述第一SCI和所述第二SCI，检测所述第二终端和所述第三终端是否发生信道冲突；
    若所述第二终端和所述第三终端发生信道冲突，则所述第一终端生成信道冲突消息，并发送所述信道冲突消息，使得所述第二终端和所述第三终端可以根据所述信道冲突消息重新发送业务数据。
  2. 根据权利要求1所述的方法，其特征在于，所述第一终端根据所述第一SCI和所述第二SCI，检测所述第二终端和所述第三终端是否发生信道冲突包括：
    所述第一终端根据所述第一SCI的资源位置指示和所述第二SCI的资源位置指示，判断物理侧连接共享信道PSSCH是否在同一传输时间间隔TTI内，若是，则判断所述第二终端和所述第三终端发生信道冲突，其中，所述第一终端、所述第二终端和所述第三终端属于同一会话组。
  3. 根据权利要求1所述的方法，其特征在于，所述第一终端根据所述第一SCI和所述第二SCI，检测所述第二终端和所述第三终端是否发生信道冲突包括：
    所述第一终端根据所述第一SCI的资源位置指示和所述第二SCI的资源位置指示，判断PSSCH是否占用相同的时频资源，若是，则判断所述第二终端和所述第三终端发生信道冲突，其中，所述第一终端和所述第二终端属于同一会话组，所述第一终端和所述第三终端属于不同会话组。
  4. 根据权利要求3所述的方法，其特征在于，所述方法还包括：
    所述第一终端接收所述第二终端发送的业务数据；
    则所述第一终端判断所述第二终端和所述第三终端发生信道冲突之后包括：
    所述第一终端判断所述业务数据是否正确，若不正确，则触发所述第一终端生成信道冲突消息的步骤。
  5. 根据权利要求1至4中任一项所述的方法，其特征在于，所述第一终端发送所述信道冲突消息包括：
    所述第一终端通过广播方式发送信道冲突消息，所述信道冲突消息包括的第二终端标识和第三终端标识；和/或所述第一终端通过点对点P2P方式分别向第二终端和第三终端发送信道冲突消息。
  6. 一种在直通模式下信道冲突的处理方法，其特征在于，包括：
    第二终端发送业务数据，并发送第一侧连接控制信息SCI，使得第一终端可以接收到第一SCI，并根据所述第一SCI检测第二终端和第三终端是否发生信道冲突；
    所述第二终端接收所述第一终端发送的信道冲突消息；
    所述第二终端根据所述信道冲突消息重新发送所述业务数据。
  7. 根据权利要求6所述的方法，其特征在于，所述第二终端接收所述第一终端发送的信道冲突消息之后还包括：
    所述第二终端根据所述信道冲突消息判断所述第二终端和所述第三终端是否发生信道冲突，若是，则触发所述第二终端根据所述信道冲突消息重新发送所述业务数据的步骤。
  8. 根据权利要求6所述的方法，其特征在于，所述第二终端接收所述第一终端发送的信道冲突消息之后还包括：
    所述第二终端判断第二终端是否满足暂停条件，若满足，则获取暂停时长，并从接收所述信道冲突消息开始计时；当计时到达所述暂停时长，触发所述第二终端根据所述信道冲突消息重新发送所述业务数据的步骤，若不满足，则触发所述第二终端根据所述信道冲突消息重新发送所述业务数据的步骤。
  9. 根据权利要求8所述的方法，其特征在于，所述第二终端判断第二终端是否满足暂停条件包括：
    所述第二终端判断所述第二终端的优先级是否低于预设优先级，若是，则确定所述第二终端满足暂停条件。
  10. 根据权利要求8或9所述的方法，其特征在于，所述第二终端获取暂停时长包括：
    所述第二终端根据随机算法获取暂停时长；
    或，
    所述第二终端根据终端优先级获取暂停时长。
  11. 一种终端，其特征在于，所述终端作为第一终端，所述终端包括：
    接收模块，用于接收第二终端发送的第一侧连接控制信息SCI，和第三终端发送的第二SCI；
    检测模块，用于根据所述第一SCI和所述第二SCI，检测所述第二终端和所述第三终端是否发生信道冲突；
    生成模块，用于若所述第二终端和所述第三终端发生信道冲突，则生成信道冲突消息；
    发送模块，用于发送所述信道冲突消息，使得所述第二终端和所述第三终端可以根据所述信道冲突消息重新发送业务数据。
  12. 一种终端，其特征在于，所述终端作为第二终端，所述终端包括：
    发送模块，用于发送业务数据，并发送第一侧连接控制信息SCI，使得第一终端可以接收到第一SCI，根据所述第一SCI检测所述第二终端和所述第三终端是否发生信道冲突；
    接收模块，用于接收所述第一终端发送的信道冲突消息；
    所述发送模块，还用于根据所述信道冲突消息重新发送所述业务数据。
  13. 一种终端，其特征在于，所述终端作为第一终端，所述终端包括：
    接收装置、发送装置、处理器和存储器；
    所述接收装置，用于接收第二终端发送的第一侧连接控制信息SCI，和第三终端发送的第二SCI；
    所述处理器，用于根据所述第一SCI和所述第二SCI，检测所述第二终端和所述第三终端是否发生信道冲突；
    所述处理器，还用于若所述第二终端和所述第三终端发生信道冲突，则生成信道冲突消息；
    所述发送装置，用于发送所述信道冲突消息，使得所述第二终端和所述第三终端可以根据所述信道冲突消息重新发送业务数据。
  14. 根据权利要求13所述的终端，其特征在于，所述处理器具体用于根据所述第一SCI的资源位置指示和所述第二SCI的资源位置指示，判断物理侧 连接共享信道PSSCH是否在同一传输时间间隔TTI内，若是，则判断所述第二终端和所述第三终端发生信道冲突，其中，所述第一终端、所述第二终端和所述第三终端属于同一会话组。
  15. 根据权利要求13所述的终端，其特征在于，所述处理器具体用于根据所述第一SCI的资源位置指示和所述第二SCI的资源位置指示，判断PSSCH是否占用相同的时频资源，若是，则判断所述第二终端和所述第三终端发生信道冲突，其中，所述第一终端和所述第二终端属于同一会话组，所述第一终端和所述第三终端属于不同会话组。
  16. 根据权利要求15所述的终端，其特征在于，
    所述接收装置，还用于接收所述第二终端发送的业务数据；
    所述处理器具体用于当所述处理器判断所述第二终端和所述第三终端发生信道冲突之后，判断所述业务数据是否正确，若不正确，则触发所述处理器生成信道冲突消息的步骤。
  17. 根据权利要求13至16中任一项所述的终端，其特征在于，所述发送装置具体用于通过广播方式发送信道冲突消息，所述信道冲突消息包括的第二终端标识和第三终端标识；和/或，
    所述发送装置具体用于通过点对点P2P方式分别向第二终端和第三终端发送信道冲突消息。
  18. 一种终端，其特征在于，所述终端作为第二终端，所述终端包括：
    接收装置、发送装置、处理器和存储器；
    所述发送装置，用于发送业务数据，并发送第一侧连接控制信息SCI，使得第一终端可以接收到第一SCI，根据所述第一SCI检测所述第二终端和所述第三终端是否发生信道冲突；
    所述接收装置，用于接收所述第一终端发送的信道冲突消息；
    所述发送装置，还用于根据所述信道冲突消息重新发送所述业务数据。
  19. 根据权利要求18所述的终端，其特征在于，
    所述处理器，还用于根据所述信道冲突消息判断所述第二终端和所述第三终端是否发生信道冲突，若是，则触发所述发送装置根据所述信道冲突消息重新发送所述业务数据的步骤。
  20. 根据权利要求18所述的终端，其特征在于，
    所述处理器，还用于判断第二终端是否满足暂停条件，若满足，则触发所述处理器获取暂停时长，并从接收所述信道冲突消息开始计时，当计时到达所述暂停时长，触发所述发送装置根据所述信道冲突消息重新发送所述业务数据的步骤；若不满足，则触发所述发送装置根据所述信道冲突消息重新发送所述业务数据的步骤；
    所述处理器，还用于获取暂停时长，并从接收所述信道冲突消息开始计时。
  21. 根据权利要求20所述的终端，其特征在于，
    所述处理器具体用于判断所述第二终端的优先级是否低于预设优先级，若低于预设优先级，则确定所述第二终端满足暂停条件。
  22. 根据权利要求20或21所述的终端，其特征在于，
    所述处理器具体用于根据随机算法获取暂停时长；
    或，
    所述处理器具体用于根据终端优先级获取暂停时长。
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