WO2022152108A1 - 协作信息发送方法、资源确定方法、通信节点及存储介质 - Google Patents

协作信息发送方法、资源确定方法、通信节点及存储介质 Download PDF

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WO2022152108A1
WO2022152108A1 PCT/CN2022/071247 CN2022071247W WO2022152108A1 WO 2022152108 A1 WO2022152108 A1 WO 2022152108A1 CN 2022071247 W CN2022071247 W CN 2022071247W WO 2022152108 A1 WO2022152108 A1 WO 2022152108A1
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Prior art keywords
terminal
target
information
sci
road
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PCT/CN2022/071247
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English (en)
French (fr)
Inventor
贺海港
卢有雄
杨瑾
邢卫民
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中兴通讯股份有限公司
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Priority to EP22738988.9A priority Critical patent/EP4280634A1/en
Priority to KR1020237027757A priority patent/KR20230132542A/ko
Priority to US18/261,521 priority patent/US20240080870A1/en
Publication of WO2022152108A1 publication Critical patent/WO2022152108A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/25—Control channels or signalling for resource management between terminals via a wireless link, e.g. sidelink
    • 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
    • H04L5/0032—Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H04W4/46—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for vehicle-to-vehicle communication [V2V]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
    • H04W64/006—Locating users or terminals or network equipment for network management purposes, e.g. mobility management with additional information processing, e.g. for direction or speed determination
    • 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
    • H04W72/50—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
    • H04W72/541—Allocation or scheduling criteria for wireless resources based on quality criteria using the level of interference
    • 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
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/16—Interfaces between hierarchically similar devices
    • H04W92/18—Interfaces between hierarchically similar devices between terminal devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present application relates to the field of wireless communication networks, for example, to a method for sending cooperation information, a method for determining resources, a communication node and a storage medium.
  • the service between user equipment may not pass through the network side, that is, without forwarding through the cellular link between the UE and the base station, but directly by the data source
  • the UE transmits to the target UE through the side link.
  • Side link communication not only saves wireless spectrum resources, but also reduces the data transmission pressure on the core network, which can reduce system resource occupation, increase spectrum efficiency, and reduce communication delay.
  • the transmitting terminal selects the resources for signaling or data transmission by monitoring the occupancy of resources.
  • the transmitting terminal is limited by geographical location, it cannot observe the location of one or more corresponding receiving terminals. According to the actual interference situation of the geographical location, the resources independently selected by the transmitting terminal may conflict with the resources transmitted by other terminals or cause interference to the resources transmitted by other terminals, affecting the reliability of side link communication.
  • the present application provides a method for sending cooperation information, a method for determining resources, a communication node and a storage medium, so as to improve the reliability of side link communication.
  • An embodiment of the present application provides a method for sending collaboration information, which is applied to a first terminal and includes:
  • the embodiment of the present application also provides a resource determination method, which is applied to the second terminal, including:
  • An embodiment of the present application further provides a communication node, including: a memory, a processor, and a computer program stored in the memory and running on the processor, where the processor implements the above-mentioned method for sending cooperation information when executing the program or resource determination method.
  • Embodiments of the present application further provide a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the program is executed by a processor, the above-mentioned method for sending collaboration information or method for determining resources is implemented.
  • FIG. 1 is a flowchart of a method for sending collaboration information provided by an embodiment
  • FIG. 2 is a schematic diagram of a collaborative information sending process provided by an embodiment
  • 3 is a schematic diagram of determining the number of coordinated UEs according to an embodiment
  • FIG. 4 is a schematic diagram of a time-frequency resource numbering provided by an embodiment
  • FIG. 5 is a schematic diagram of a resource set provided by an embodiment
  • FIG. 6 is a schematic diagram of determining the number of cooperative UEs according to another embodiment
  • FIG. 7 is a schematic diagram of a collaborative information sending process provided by another embodiment
  • FIG. 8 is a schematic diagram of a process for sending cooperation information according to another embodiment
  • FIG. 9 is a schematic diagram of a process for sending cooperation information according to still another embodiment.
  • FIG. 10 is a schematic diagram of selecting a target time-frequency resource according to an embodiment
  • FIG. 11 is a flowchart of a resource determination method provided by an embodiment
  • FIG. 12 is a schematic structural diagram of an apparatus for sending cooperation information according to an embodiment
  • FIG. 13 is a schematic structural diagram of an apparatus for determining a resource according to an embodiment
  • FIG. 14 is a schematic diagram of a hardware structure of a communication node according to an embodiment.
  • the terminal can monitor the use of resources within the resource pool, and select resources in the resource pool that are not occupied by other terminals, or resources with less interference with the transmission of other terminals in the resource pool according to the monitoring results. transmission of commands or data.
  • the transmitting terminal needs to select the terminal to transmit the positioning related information. Due to the geographic location of the transmitting terminal, the transmitting terminal cannot observe the real interference situation of the geographic location where the corresponding one or more receiving terminals are located. Therefore, a cooperative terminal can be found to provide cooperative information for the transmitting terminal, and assist the transmitting terminal in selecting resources. However, in the case where the transmitting terminal transmits information in a multicast manner or a broadcast manner, there is no perfect solution for how to find a suitable cooperative terminal for the transmitting terminal.
  • a method for sending cooperation information is provided, and the method can be applied to a first terminal.
  • the first terminal can determine whether it can be used as a cooperative terminal, and if it can be used as a cooperative terminal, it sends cooperative information to recommend an appropriate resource set to the transmitting terminal, thereby reducing the conflict of different resources or interference and improve the reliability of side link communication.
  • the method is also applicable to the scenario where the transmitting terminal adopts the unicast communication mode.
  • FIG. 1 is a flowchart of a method for sending collaboration information according to an embodiment. As shown in FIG. 1 , the method provided in this embodiment includes step 110 and step 120 .
  • step 110 condition information is obtained.
  • step 120 collaboration information is sent if the target parameter satisfies the restriction of the condition information, the collaboration information including a resource set.
  • the first terminal receives the condition information indicated by the target terminal, or receives the condition information configured by the base station, or obtains pre-stored condition information, as the basis for the first terminal to determine whether it is a cooperative UE.
  • the target terminal sends Side Link Control Information (SCI) to the first terminal, according to which the first terminal can determine whether the target parameter between it and the target terminal satisfies the restriction of the condition information, if the first terminal If the target parameter with the target terminal satisfies the restriction of the condition information, the first terminal determines that it is a cooperative UE, and sends the cooperative information to the target terminal or other terminals to recommend resources.
  • SCI Side Link Control Information
  • the target terminal may be a cooperative UE or a non-cooperative UE.
  • the first terminal comprehensively determines whether it is a cooperative UE according to target parameters of each target terminal.
  • the first terminal determines whether it can act as a cooperative UE according to the target parameters and condition information, and feeds back the cooperation information to the target terminal.
  • the first terminal determines the target parameters according to the information sent by the target terminal, For example, the distance between the first terminal and the target terminal, the reference signal received power (Reference Signal Received Power, RSRP) of the reference signal of the target terminal received by the first terminal, the angle between the moving directions of the first terminal and the target terminal and/or the target The terminal is the road direction indicated by the first terminal, etc., and then the first terminal compares the target parameter with the condition information, and if the target parameter meets the restriction of the condition information, it determines that it is a cooperative UE; 2) The target terminal determines which UEs can be used as cooperative UEs , by sending information to the first terminal to inform the first terminal, the first terminal determines whether it is one of them according to the information sent by the target terminal, and if so, determines that it is a cooperative UE
  • the collaboration information includes a resource set, which may be a set of resources recommended by the first terminal or a set of available resources, or a set of resources that are not recommended to be used.
  • condition information is pre-configured or pre-stored information, or information configured through RRC signaling, or information determined according to the first SCI sent by the second terminal.
  • the second terminal is a UE that indicates target parameters and/or condition information to the first terminal, and the second terminal and the target terminal may be the same or different.
  • condition information includes at least one of the following:
  • the target terminal is the road direction indicated by the first terminal; the target terminal is the range of the road direction indicated by the first terminal; the target terminal is the road sign indicated by the first terminal; the target terminal is the movement direction indicated by the first terminal; The range of the movement direction indicated by the terminal; the threshold value of the angle between the movement direction of the first terminal and the movement direction of the target terminal; the value range of the angle between the movement direction of the first terminal and the movement direction of the target terminal; the movement direction of the first terminal and the target terminal.
  • the threshold value of the included angle between the moving direction of the terminal is 90 or the remainder of ⁇ /2; the value range of the angle between the moving direction of the first terminal and the moving direction of the target terminal is 90 or the remainder of ⁇ /2; the road where the first terminal is located
  • the threshold value of the included angle between the direction and the direction of the road where the target terminal is located; the value range of the included angle between the direction of the road where the first terminal is located and the direction of the road where the target terminal is located; the angle between the direction of the
  • the first terminal determines the target parameter according to the information sent by the target terminal, and the target parameter includes the direction of the road where the first terminal is located, the road sign where the first terminal is located, the movement direction of the first terminal,
  • the distance between the first terminal and the target terminal, the RSRP of the reference signal of the target terminal received by the first terminal, the included angle between the moving directions of the first terminal and the target terminal, and the included angle between the moving directions of the first terminal and the target terminal are taken as: remainder, the included angle of the road direction between the first terminal and the target terminal and/or the included angle of the road direction of the first terminal and the target terminal;
  • the condition information includes the value range and/or the threshold value of these target parameters , where the threshold value may be an upper limit value, a lower limit value and/or a grade division value.
  • the first terminal compares the target parameter with the condition information, and if the target parameter satisfies the restriction of the condition information,
  • condition information includes the first SCI sent by the second terminal; the first SCI includes request information, and the request information includes at least one of the following:
  • a first bitmap (Bitmap), where the first bitmap is used to indicate the cooperative UE or used to request the first terminal to send cooperative information.
  • the first terminal determines the user identification number of the coordinated UE and/or the coordinated UE indicated in the bitmap according to the first SCI sent by the second terminal, and determines whether it belongs to one of them.
  • the condition information includes the first SCI sent by the second terminal; the first SCI includes request information, and the request information includes the user identification number of the cooperative UE, the user identification number of the cooperative UE is the source identifier (Identifier, ID) of the cooperative UE.
  • the first terminal determines the user identification number of the coordinated UE according to the first SCI sent by the target terminal, and the user identification number refers to the source ID of the coordinated UE.
  • the target parameter includes at least one of the following:
  • the first terminal can determine that the target terminal is the road direction indicated by the first terminal; the target terminal is the road sign indicated by the first terminal; the target terminal is the moving direction indicated by the first terminal; The distance between the first terminal and the target terminal; the RSRP of the reference signal of the target terminal received by the first terminal; the angle between the direction of the road where the first terminal is located and the direction of the road where the target terminal is located; the road where the first terminal is located The angle between the direction and the direction of the road where the target terminal is located is 90 or the remainder of ⁇ /2; the angle between the movement direction of the first terminal and the movement direction of the target terminal; the movement direction of the first terminal and the target terminal The included angle between the moving directions is equal to 90 or the remainder of ⁇ /2; the user identification number of the collaborative terminal.
  • the first terminal can determine that the target terminal is the road sign, road direction and/or movement direction indicated by the first terminal. If the direction and/or the movement direction are consistent with the road sign, road direction and/or movement direction where the first terminal is located, the first terminal may determine itself as a cooperative UE.
  • the first terminal may determine the distance between the first terminal and the target terminal by receiving the first positioning reference signal (or the first positioning reference signal and the first position information) sent by the target terminal.
  • the first positioning reference signal or the first positioning reference signal and the first position information
  • the first terminal may determine the RSRP of the received reference signal of the target terminal by measuring the reference signal (eg, the first positioning reference signal or the demodulation reference signal) sent by the target terminal.
  • the reference signal eg, the first positioning reference signal or the demodulation reference signal
  • the first terminal can determine the included angle of the movement direction and/or the included angle of the road direction between the first terminal and the target terminal.
  • the target terminal has determined which UEs can be used as cooperative UEs, and sends the user identification numbers of these UEs to the first terminal through the first SCI.
  • the first terminal receives the first SCI and determines whether its own user identification number belongs to the first SCI. One of the indications in , so as to determine whether it is a cooperative UE.
  • the first SCI sent by the target terminal may be used to request the receiver UE to send positioning-related information to it as a cooperative UE.
  • Such a target terminal is also called a second terminal. After the first terminal determines that it is a cooperative UE, it can send the cooperation information to the second terminal.
  • the target parameter includes at least one of the following:
  • the user identification number of the first terminal the corresponding position of the first terminal in the bitmap.
  • the corresponding condition information is the user identification number of the cooperative UE; the target parameter is the corresponding position of the first terminal in the bitmap, and the corresponding condition information is the user identification number of the cooperative UE.
  • Bitmap for indicating cooperative UEs or requesting feedback of cooperative information.
  • it also includes:
  • Step 112 Determine the movement direction of the second terminal according to the first SCI sent by the second terminal.
  • the second terminal is a target terminal of the first terminal
  • the first terminal can determine the movement direction of the second terminal according to the first SCI sent by the second terminal, and then can determine the movement direction of the first terminal and the second terminal.
  • it also includes:
  • Step 114 Determine the road direction of the second terminal according to the first SCI sent by the second terminal.
  • the second terminal is a target terminal of the first terminal
  • the first terminal can determine the direction of the road where the second terminal is located according to the first SCI sent by the second terminal, and then can determine the direction of the road where the first terminal is located and the direction of the road where the first terminal is located.
  • it also includes:
  • Step 116 Determine the distance between the first terminal and the second terminal according to the zone ID (Zone ID) in the first SCI sent by the second terminal and the zone ID of the first terminal.
  • the second terminal is a target terminal of the first terminal
  • the first terminal can determine the area identifier where the second terminal is located according to the first SCI sent by the second terminal, and further can determine the area identifier of the first terminal according to the area identifier of the first terminal and the first terminal.
  • the identifier of the area where the two terminals are located determines the distance between the first terminal and the second terminal.
  • step 120 includes:
  • the cooperative information is sent.
  • the first terminal if the number of coordinated UEs in the target terminal has reached the number threshold, the first terminal does not send the coordination information; if the number of coordinated UEs is less than the number threshold, the first terminal can send the coordination information as a coordinated UE information.
  • step 120 includes:
  • the cooperation information is sent when the user identification number of the first terminal belongs to the user identification number of the coordinated UE.
  • step 120 includes:
  • the cooperation information is sent.
  • the first terminal can send the cooperation information as a cooperative UE; if the indication is 0, the first terminal does not send the cooperation information.
  • it also includes:
  • Step 100 Send a second SCI, where the second SCI is used to indicate that the first terminal supports serving as a cooperative terminal.
  • the first terminal sends the second SCI to notify other UEs that the first terminal can become a cooperative terminal.
  • a cooperative UE declaration is included in the second SCI, indicating that the first terminal has the capability of recommending resources, or allows other UEs to request it for feedback of cooperative information.
  • it also includes:
  • Step 102 Send a second SCI, where the second SCI is used to indicate the time limit for the first terminal to act as a cooperative terminal.
  • the first terminal may notify other UEs by sending the second SCI that the first terminal is willing or can become a cooperative UE, and indicates the time limit for the first terminal to act as a cooperative terminal.
  • it also includes:
  • Step 130 Detect the third SCI.
  • Step 140 According to the detection result of the third SCI, send the cooperation information, or cancel the sending of the cooperation information.
  • the first terminal is used as a candidate cooperative terminal to select time-frequency resources for sending the second positioning reference signal.
  • the first terminal detects a third positioning reference signal not sent by the first terminal (including the target terminal and/or the second terminal), and when the detection result satisfies the second restriction condition, the first terminal sends the second positioning reference signal as a cooperative UE signal; otherwise, the first terminal is not a cooperative UE, and cancels sending the second positioning reference signal.
  • the cooperation information includes a second bitmap; each bit in the second bitmap is used to indicate that a subchannel on a time slot is a recommended resource or a non-recommended resource.
  • the cooperation information recommends resources through the second bitmap, and each bit in the second bitmap has a fixed mapping relationship with the subchannels on the time slot.
  • the first terminal compares the target parameter and the condition information, and determines whether it can send cooperation information to the target terminal (the second terminal) or other terminals to recommend the resource set.
  • FIG. 2 is a schematic diagram of a process of sending cooperation information according to an embodiment. As shown in Figure 2, it mainly includes steps 1-5.
  • Step 1 The first terminal acquires condition information.
  • Condition Information Packs at least one of the following information:
  • the target terminal is the road direction indicated by the first terminal; the target terminal is the range of the road direction indicated by the first terminal; the target terminal is the road sign indicated by the first terminal; the target terminal is the movement direction indicated by the first terminal; The range of the movement direction indicated by the terminal; the threshold value of the angle between the movement direction of the first terminal and the movement direction of the target terminal; the value range of the angle between the movement direction of the first terminal and the movement direction of the target terminal; the movement direction of the first terminal and the target terminal.
  • the threshold value of the included angle between the moving direction of the terminal is 90 or the remainder of ⁇ /2; the value range of the angle between the moving direction of the first terminal and the moving direction of the target terminal is 90 or the remainder of ⁇ /2; the road where the first terminal is located
  • the threshold value of the included angle between the direction and the direction of the road where the target terminal is located; the value range of the included angle between the direction of the road where the first terminal is located and the direction of the road where the target terminal is located; the angle between the direction of the
  • the first terminal acquires the condition information in the following three ways:
  • Manner 1 The second terminal sends the first SCI to the first terminal to indicate condition information.
  • the first terminal acquires the condition information by receiving the first SCI of the second terminal.
  • the base station configures condition information for the first terminal through radio resource control (Radio Resource Control, RRC) signaling.
  • the first terminal acquires the condition information by receiving the RRC signaling.
  • the first terminal pre-stores the condition information configured in the received RRC signaling, and the stored condition information is notified to the physical layer of the first terminal through high-layer RRC pre-configuration signaling of the first terminal.
  • the stored condition information may be stored in the first terminal in a factory pre-configured manner, and the stored condition information is notified to the physical layer of the first terminal through high-layer RRC pre-configured signaling of the first terminal.
  • the second terminal sends request information for cooperation information to the first terminal through the first SCI, and the request information includes: the user identification number of the cooperative UE (for example, the source ID, Source ID), or used to indicate the cooperative UE or request for cooperation
  • the first bitmap of information has a fixed mapping relationship with the UE number in the UE set. For example, the i-th bit from low to high in the first bitmap is used to indicate the number in a UE set Whether the UE with i needs to feed back the coordination information to the second terminal, the UE corresponding to the bit whose bit value is 1 is the coordinated UE, and the second terminal triggers these coordinated UEs to feed back the coordination information.
  • the first terminal may determine whether to feed back the cooperation information to the second terminal according to whether its own source ID belongs to the user identification number of the cooperative UE, or according to the bit value of its own number in the corresponding position in the first bitmap.
  • the second terminal before requesting the first UE to feed back cooperation information through the first SCI, the second terminal first needs to select one or more cooperative UEs.
  • the second terminal may select the cooperative UE based on the motion direction, for example, select the UE whose included angle with the motion direction of the second terminal is smaller than the motion direction angle threshold value as the cooperative UE.
  • the second terminal may also select the cooperative UEs based on factors such as distance, the number of cooperative UEs, and the included angle of the road direction.
  • Step 2 The first terminal acquires the target parameter, including the following two ways.
  • Mode a The first terminal receives the SCI of the target terminal (which may include the second terminal) to obtain the target parameter, and/or the first terminal obtains the target parameter through its own sensor device, and the target parameter includes at least one of the following:
  • the included angle value of the direction takes the remainder to 90; the included angle value of the moving direction of the first terminal and the moving direction of the target terminal takes the remainder to ⁇ /2; the included angle between the road direction of the first terminal and the road direction of the target terminal;
  • the value of the angle between the road direction of a terminal and the road direction of the target terminal takes the remainder of 90; the angle value of the road direction of the first terminal and the road direction of the target terminal is the remainder of ⁇ /2; distance between; the first terminal receives the RSRP of the reference signal of the target terminal.
  • the first terminal calculates the angle between the movement direction of the first terminal and the movement direction of the target terminal according to the movement direction of the target terminal indicated by the SCI of the target terminal and the movement direction of the first terminal itself.
  • the first terminal acquires the area identifier of the target terminal indicated by the bits in the SCI of the target terminal, and determines the distance between the first terminal and the target terminal based on the area identifier of the first terminal itself and the area identifier of the target terminal.
  • the area identifier is used to represent a rectangular area, and the first terminal calculates the center position coordinates of the rectangular area corresponding to its own area identifier, and calculates the center position coordinates of the rectangular area corresponding to the target terminal area identifier, and then calculates the first terminal based on the two center position coordinates. The distance between a terminal and the target terminal.
  • the target parameter includes at least one of the following: the user identification number of the first terminal, and the corresponding bit position of the first terminal in the Bitmap.
  • the second terminal sends the request information to the first terminal through a specific SCI format (Format).
  • the second terminal may indicate to the first terminal the user identification numbers of one or more cooperative UEs through the bits in the first SCI, or the second terminal may indicate to the first terminal the first terminal through the bits in the first SCI.
  • Bitmap first, each bit in the bitmap has a fixed mapping relationship with the UE number in the UE set. The first terminal can determine whether it needs to feed back the cooperation information to the second terminal according to whether its own source ID belongs to the user identification number of the cooperative UE, or according to the bit value of its own number in the corresponding position in the first bitmap.
  • Step 3 The first terminal compares the condition information and the target parameter, and determines whether to send the collaboration information.
  • the condition information includes a threshold value and a distance threshold value of the included angle of the movement direction
  • the type of the threshold value may be an upper limit value, a lower limit value, and/or a grade division value, and the like.
  • the threshold value of the included angle of the movement direction is 15 degrees
  • the distance threshold value is 300 meters.
  • the target parameters include: mod( ⁇ /2,90)alpha obtained by taking the angle between the movement direction of the first terminal and the movement direction of the target terminal to 90, and the distance between the first terminal and the target terminal.
  • the value of the included angle between the first terminal and the target terminal is less than the threshold value of the angle (included angle) of 15 degrees; the distance between the first terminal and the target terminal is less than the distance threshold value of 300 meters; the target The terminal is a cooperative UE that sends cooperative information.
  • the target parameter is the road direction where the first terminal is located
  • the restriction condition is the road direction indicated by the target terminal for the first terminal. If the direction of the road where the first terminal is located is the same as the direction of the road indicated by the target terminal for the first terminal, the first terminal determines that the restriction condition is satisfied, and the first terminal sends the cooperation information.
  • the target parameter is the road direction where the first terminal is located
  • the restriction condition is the range of the road direction indicated by the target terminal for the first terminal. If the direction of the road where the first terminal is located does not exceed the range of the road direction indicated by the target terminal for the first terminal, the first terminal determines that the restriction condition is met, and the first terminal sends the cooperation information.
  • Step 4 If the target parameter satisfies the restriction of the condition information, the first terminal may act as a cooperative UE of the second terminal and send the cooperation information to the second terminal, indicating the resource set recommended to the second terminal, or indicating that the second terminal is not recommended. Collection of resources used.
  • Step 5 The second terminal receives the cooperation information sent by the first terminal, obtains a set of resources recommended for use by the first terminal or a set of resources that are not recommended for use, and flexibly selects resources for signaling or information transmission based on this, or selects a set of resources for simultaneous use. resources for signaling and information transmission.
  • Example 1 The first terminal compares the RSRP of the reference signal of the target terminal and the number of cooperative UEs with the condition information to determine whether to send the cooperative information
  • the process of sending collaboration information mainly includes:
  • Step 1 Obtain condition information, the condition information includes:
  • the threshold value of RSRP of the first terminal receiving the reference signal of the target terminal is, for example, -100dBm; the threshold value of the number of cooperative UEs.
  • the first terminal acquires the condition information by receiving RRC signaling or pre-configured signaling of the base station.
  • Obtaining the condition information through pre-configured signaling may be: obtaining the condition information in a factory-pre-configured manner, or the first terminal pre-stores the condition information configured by the RRC signaling from the base station.
  • Step 2 The first terminal obtains target parameters by receiving the SCI of the target terminal, and the target parameters include:
  • the first terminal receives the RSRP of the reference signal of the target terminal.
  • the first terminal receives the RSRP of the reference signal of the target terminal, and demodulates the reference signal (Demodulation Reference Signal) through the Physical Sidelink Control Channel (PSCCH) of the target terminal that successfully decodes the SCI of the target terminal.
  • PSCCH Physical Sidelink Control Channel
  • DMRS Physical Sidelink Shared Channel
  • PSSCH Physical Sidelink Shared Channel
  • Step 3 For each target terminal (the target terminal is a cooperative UE that supports sending cooperation information), the first terminal compares the target parameter and the condition information, and determines whether to send the cooperation information.
  • the first terminal may send cooperating information as a cooperating UE: the RSRP of the reference signal received by the first terminal of the target terminal is less than -100dBm.
  • FIG. 3 is a schematic diagram of determining the number of coordinated UEs according to an embodiment.
  • the first terminal receives the SCI of the target terminal, and finds the target terminals, including UE1 to UE6, for which the SCI reception is successful and the RSRP of the reference signal received by the first terminal does not exceed -100dBm.
  • the first terminal finds that the SCI formats corresponding to UE1 and UE2 are SCI format2-C, and SCI format 2-C is used for decoding the PSSCH carrying the coordination information; the SCIs corresponding to UE3 to UE6
  • the format is SCI format 2-A, and SCI format 2-A is used for decoding PSSCH carrying regular data information. That is to say, among UE1-UE6, the first terminal finds through SCI decoding that the cooperative UEs sending cooperative information include UE1 and UE2, and the UEs sending non-cooperative information are UE3-UE6.
  • the first terminal can be used as a cooperative UE to send messages to the target terminal (the target terminal is the second terminal) or Other terminals send cooperation information.
  • Step 4 The first terminal acts as a cooperative UE and sends the cooperation information to the second terminal.
  • the cooperation information sent by the first terminal may be a second bitmap, and each bit in the second bitmap is used to indicate whether a sub-channel (Sub-Channel) in a time slot is a recommended resource (also referred to as a recommended resource). resources) or available resources. Bits and resource positions in the second bitmap have a corresponding relationship.
  • FIG. 4 is a schematic diagram of a time-frequency resource numbering provided by an embodiment.
  • the first terminal sends a 32-bit Bitmap in time slot n, and indicates a time window [n+k, n+k+7] for resource selection.
  • the manner in which the first terminal indicates the time window [n+k, n+k+7] for resource selection is as follows: in the time slot n, the offset value (offset) is indicated as k, and the length of the indicated time window is 8.
  • Number the sub-channels on each time slot in the time window [n+k, n+k+7] is to number the sub-channels of each time slot in ascending order in the order of the frequency domain first and then the time domain. number.
  • the numbering of each subchannel of each time slot is shown in FIG. 4 .
  • the corresponding relationship between the bits in the second bitmap and the resource positions is: the ith bit from low to high in the second bitmap is used to indicate whether the ith resource is a recommended resource or an available resource.
  • the i-th bit is indicated as 1, indicating that the first terminal indicates that the i-th resource is a recommended resource or an available resource.
  • the process for the first terminal to determine that the i-th resource indication is 1 includes: the first terminal determines a resource set based on the received SCI of the target terminal and a measurement result of the RSRP of the reference signal of the target terminal. For the resource in the resource set, the first terminal indicates through the Bitmap that the bit value corresponding to the resource is 1.
  • the time window for resource selection is [n+k,n+k+7], one subchannel corresponds to one time-frequency resource, and the time window [n+k,n+k+7] includes 32 resource.
  • the first terminal excludes the resources indicated by the SCI of the target terminal as occupied and the RSRP of the target terminal is higher than the RSRP threshold, and the remaining resources are the recommended resources determined by the first terminal or The resource set of available resources, denoted as setA1.
  • the bit value of the first terminal indicating the recommended resource or available resource in setA1 in the second bitmap is 1.
  • the RSRP threshold value may be configured through RRC signaling of the base station or through pre-configured signaling of the first terminal, and the configured or pre-configured RSRP threshold value has nothing to do with the service priority.
  • the excluded resources may also constitute an unrecommended or unusable resource set setA0, and the first terminal indicates the unrecommended or unusable resources in the setA0 in the second bitmap with a bit value of 0.
  • Step 5 The second terminal receives the cooperation information of the first terminal, and determines recommended resources or available resources according to the second bitmap in the cooperation information. Based on the second bitmap indicated by the first terminal, the second terminal selects the resources in the resource set setA2, setA2, including N consecutive subchannels, and the first terminal indicates through the second bitmap that these N resources are recommended resources or available resources ( That is, the bit values corresponding to the N resources are all 1). In addition, the second terminal may also determine setA0 based on the second bitmap indicated by the first terminal so as to determine a resource that is not recommended or unavailable. The number N of consecutive subchannels can be obtained through RRC signaling configuration of the base station, or obtained through pre-configuration.
  • the second terminal can also obtain a resource set by receiving the SCI of the non-second terminal and measuring the RSRP of the non-second terminal (measurement of PSCCH DMRS or PSSCH DMRS). setA3, the second terminal acquires setA3 in the following way: within the set time window, the second terminal excludes the resources indicated by the SCI of other non-second terminals as occupied or whose RSRP is higher than the RSRP threshold, and the remaining resources are taken as the resource set setA3 .
  • the second terminal takes an intersection set of setA3 and setA2, and then randomly selects resources from the intersection set for signaling or data transmission of the second terminal. If the resources included in the intersection of setA3 and setA2 are insufficient, the second terminal ignores setA2, and randomly selects resources from setA3 for signaling or data transmission of the second terminal.
  • Example 2 The first terminal compares the distance with the target terminal, the included angle of the movement direction, and the number of cooperative UEs with the condition information, and determines whether to send the cooperative information
  • the process of sending collaboration information mainly includes:
  • Step 1 Obtain condition information, the condition information includes:
  • the threshold value of the angle between the movement direction of the first terminal and the movement direction of the target terminal is ⁇ /2, for example, ⁇ /12 radians; the distance between the first terminal and the target terminal is, for example, 300 meters.
  • the first terminal acquires the condition information by receiving RRC signaling or pre-configured signaling of the base station.
  • Obtaining the condition information through pre-configured signaling may be: obtaining the condition information in a factory-pre-configured manner, or the first terminal pre-stores the condition information configured by the RRC signaling from the base station.
  • Step 2 The first terminal obtains target parameters by receiving the SCI of the target terminal, and the target parameters include:
  • the included angle ⁇ between the movement direction of the first terminal and the movement direction of the target terminal is the remainder of ⁇ /2; the distance between the first terminal and the target terminal.
  • the first terminal calculates the included angle ⁇ between the movement direction of the first terminal and the movement direction of the target terminal, and obtains ⁇ to 90 or to ⁇ . The value of the remainder of ⁇ /2.
  • the SCI of the target terminal contains 3 bits of information to indicate the movement direction of the target terminal, for example:
  • Bit 000 used to indicate that the movement direction is due north.
  • Bit 001 used to indicate that the direction of motion is 45 degrees north by south.
  • Bit 010 used to indicate that the movement direction is due west.
  • Bit 011 used to indicate that the direction of motion is 45 degrees west by south.
  • Bit 100 used to indicate that the movement direction is due south.
  • Bit 101 used to indicate that the direction of motion is 45 degrees east by south.
  • Bit 110 used to indicate that the movement direction is due east.
  • Bit 111 used to indicate that the direction of motion is 45 degrees north by east.
  • the first terminal acquires the area identifier of the target terminal indicated by the target terminal through the SCI, and determines the distance between the first terminal and the target terminal based on the area identifier of the first terminal itself and the area identifier of the target terminal.
  • the distance between the first terminal and the target terminal may be calculated according to the center position coordinates of the rectangular area corresponding to its own area identifier and the center position coordinates of the rectangular area corresponding to the area identifier of the target terminal.
  • Step 3 For each target terminal (the target terminal is a cooperative UE that supports sending cooperation information), the first terminal compares the target parameter and the condition information, and determines whether to send the cooperation information.
  • the first terminal may send coordination information as a coordinated UE:
  • the included angle ⁇ between the movement direction of the first terminal and the movement direction of the target terminal is less than ⁇ /12 radians, taking the remainder of ⁇ /2; the distance between the first terminal and the target terminal is less than 300 meters.
  • the number threshold is, for example, 1, that is, by comparing the condition information and the target parameter, the first terminal can send the cooperation information as a cooperative UE if it cannot find a cooperative UE that satisfies the above conditions (the number of cooperative UEs is 0). ; If there is at least one cooperative UE that satisfies the above conditions, the first terminal is not a cooperative UE and does not send cooperative information.
  • FIG. 6 is a schematic diagram of determining the number of cooperative UEs according to another embodiment.
  • the first terminal receives the SCI of the target terminal, and finds the target terminal under the conditions that the SCI reception is successful and the distance between the first terminal and the target terminal is less than 300 meters, including UE1 to UE6; according to the movement of the first terminal If the included angle between the direction and the moving direction of the target terminal is less than ⁇ /12 radians with the remainder of ⁇ /2, UE1 to UE4 are filtered out.
  • the first terminal finds that the SCI formats corresponding to UE1 and UE2 are SCI format2-C, and SCI format 2-C is used for decoding the PSSCH carrying the coordination information; the SCIs corresponding to UE3 to UE6
  • the format is SCI format 2-A, and SCI format 2-A is used for decoding PSSCH carrying regular data information. That is to say, among UE1-UE6, the first terminal finds through SCI decoding that the cooperative UEs sending cooperative information include UE1 and UE2, and the UEs sending non-cooperative information are UE3-UE6.
  • the first terminal acts as a cooperative UE and sends messages to the target terminal (the target terminal is the second terminal) or Other terminals send cooperation information.
  • Step 4 The first terminal acts as a cooperative UE and sends the cooperation information to the second terminal.
  • the cooperation information sent by the first terminal may be a second bitmap, and each bit in the second bitmap is used to indicate whether a sub-channel (Sub-Channel) in a time slot is a recommended resource (also referred to as a recommended resource). resources) or available resources. Bits and resource positions in the second bitmap have a corresponding relationship. The corresponding relationship is: the i-th bit from low to high in the second bitmap is used to indicate whether the i-th resource is a recommended resource or an available resource. The i-th bit is indicated as 1, indicating that the first terminal indicates that the i-th resource is a recommended resource or an available resource.
  • the process for the first terminal to determine that the i-th resource indication is 1 includes: the first terminal determines a resource set based on the received SCI of the target terminal and a measurement result of the RSRP of the reference signal of the target terminal. For the resource in the resource set, the first terminal indicates through the second bitmap that the bit value corresponding to the resource is 1.
  • the RSRP threshold value may be configured through RRC signaling of the base station or through pre-configured signaling of the first terminal, and the configured or pre-configured RSRP threshold value has nothing to do with the service priority.
  • Step 5 The second terminal receives the cooperation information of the first terminal, and determines recommended resources or available resources according to the second bitmap in the cooperation information. Based on the second bitmap indicated by the first terminal, the second terminal determines the resources in the resource set setA2, setA2, including N consecutive subchannels, and the first terminal indicates through the second bitmap that these N resources are recommended resources or available resources ( That is, the bit values corresponding to the N resources are all 1).
  • the number N of consecutive subchannels can be obtained through RRC signaling configuration of the base station, or obtained through pre-configuration.
  • the second terminal can also obtain a resource set by receiving the SCI of the non-second terminal and measuring the RSRP of the non-second terminal (measurement of PSCCH DMRS or PSSCH DMRS). setA3, the second terminal obtains setA3 in the following way: within the set time window, the second terminal excludes the resources indicated by the SCI of other non-second terminals as occupied and whose RSRP is higher than the RSRP threshold, and the remaining resources are taken as the resource set setA3.
  • the second terminal takes the intersection of setA2 and setA3, and then randomly selects resources from the intersection for signaling and data transmission of the second terminal. If the resources included in the intersection of setA2 and setA3 are insufficient, the second terminal ignores setA2, and randomly selects resources from setA3 for signaling and data transmission of the second terminal.
  • Example 3 (For a multicast Groupcast, the second terminal selects a cooperative UE, and sends the first SCI to the first terminal, where the first SCI includes request information, and the request information includes a user identification number)
  • the first terminal sends a cooperative UE declaration to indicate that the first terminal can or is willing to become a cooperative UE.
  • the second terminal receives the cooperative UE declaration information of one or more terminals
  • the second terminal selects one or more terminals as the first terminal from these terminals.
  • the second terminal sends the first terminal to the first terminal.
  • Send request information The request information is used to request the first terminal to send cooperation information.
  • the first terminal receives the request information from the second terminal, and determines whether to send cooperation information. If it is determined that the cooperation information is to be sent, the first terminal sends the cooperation information.
  • FIG. 7 is a schematic diagram of a process of sending cooperation information according to another embodiment. As shown in Figure 7, the process of sending collaboration information mainly includes:
  • Step 1 The first terminal sends a cooperative UE declaration to indicate that the first terminal can or is willing to become a cooperative UE.
  • the cooperating UE declaration is indicated by bits in the second SCI, which is transmitted through PSCCH or PSSCH.
  • the first terminal may also declare its time limit as a cooperative UE through the second SCI. For example, at time t1, the first terminal notifies it of the time length L of being a cooperative UE, that is, the start time when the first terminal can or is willing to become a cooperative UE is t1, and the end time is t1+L-1. During the time period [t1, t1+L-1], the first terminal can act as a cooperative UE and transmit cooperative information for other terminals.
  • Step 2 After receiving the cooperative UE declaration of one or more UEs, the second terminal selects one or more UEs as cooperative UEs from these UEs.
  • the cooperative UEs selected by the second terminal include the first terminal.
  • the second terminal determines all or part of the UEs satisfying the following conditions as cooperative UEs by receiving the cooperative UE declaration of one or more UEs:
  • the distance between the second terminal and the UE does not exceed the distance threshold; the angle between the movement direction of the second terminal and the movement direction of the UE indicated by the SCI of the UE is the remainder of ⁇ /2, and does not exceed the movement direction
  • the included angle is the threshold value of the remainder of ⁇ /2; the SCI of the UE indicates that the UE can or is willing to become a cooperative UE; the second terminal and the UE belong to the same group.
  • Step 3 The second terminal sends request information to the selected coordinated UE for requesting the coordinated UE to feed back coordination information.
  • the second terminal may send the request information through a specific SCI format.
  • the second terminal sends the first SCI, and the bits in the first SCI indicate the user identification number of the selected cooperative UE.
  • the second terminal sends the first SCI, the bits in the first SCI indicate the first bitmap, and the bit positions in the first bitmap have a fixed mapping relationship with the cooperative UEs in the group where the second terminal is located. That is, each bit in the first bitmap is used to indicate whether a UE in the group where the second terminal is located is selected as a cooperative UE.
  • bit value of a bit in the first bitmap is 1, it means that the UE corresponding to this bit is a cooperative UE; if the value of a bit in the first bitmap is 0, it means that the UE corresponding to this bit does not send cooperative UEs information.
  • the second terminal may further indicate to the target terminal a time window for sending the collaboration information through the first SCI.
  • the second terminal may also indicate a destination ID (Destination ID) to the target terminal through the first SCI, where the destination ID is a group ID, which is used to distinguish different UE groups.
  • Destination ID a destination ID to the target terminal through the first SCI, where the destination ID is a group ID, which is used to distinguish different UE groups.
  • Step 4 The first terminal receives the request information sent by the second terminal, and determines whether to send cooperation information.
  • the first terminal may send the cooperation information to the second terminal as a cooperative UE. If the source ID of the first terminal is the same as one of the user identification numbers of the cooperating UEs indicated in the first SCI, the first terminal sends the cooperating information to the second terminal as the cooperating UE.
  • the target parameter includes the source ID of the first terminal, and the condition information includes the user identification number of the cooperating UE.
  • the first terminal determines whether to send the cooperation information according to the fixed mapping relationship between the bit positions in the first bitmap and the cooperative UEs in the group where the second terminal is located. If the bit value of the corresponding position indicates 1, the first terminal sends the cooperation information to the second terminal as a cooperative UE.
  • the target parameter includes the corresponding position of the first terminal in the Bitmap
  • the condition information includes the bit value of the corresponding position in the Bitmap.
  • Step 5 The first terminal sends collaboration information.
  • the sending of the cooperation information falls within the time window for sending the cooperation information notified by the second terminal in the first SCI.
  • the collaboration information includes at least one resource set, which may be a resource set consisting of recommended resources or available resources, or a resource set consisting of resources that are not recommended for use.
  • the method for the first terminal to determine the recommended resource set is: the first terminal determines the occupied resources indicated by the non-first terminal by monitoring the SCI of the non-first terminal, and measures the PSCCH DMRS or PSSCH DRMS of the non-first terminal, Get the corresponding RSRP.
  • the first terminal excludes resources whose RSRP is greater than the RSRP threshold value of the resources indicated as occupied or indicated to be occupied by other non-first terminals within the time window of resource selection, and the remaining resources are marked as setA1, and setA1 is the resources recommended by the first terminal collection.
  • the second terminal receives the cooperation information sent by the first terminal, selects resources based on the cooperation information, and the second terminal determines the resource set setA2 based on the second bitmap indicated by the first terminal.
  • the second terminal obtains the occupied resources indicated by the non-second terminal by monitoring the SCI of other non-second terminals.
  • the second terminal obtains the RSRP between the second terminal and the non-second terminal by measuring the PSCCH DMRS or PSSCH DRMS of the non-second terminal.
  • the second terminal excludes the resources indicated by other non-second terminals as occupied or the RSRP of the resources indicated to be occupied is greater than the threshold value within the time window of resource selection, and the remaining resources are marked as setA3.
  • the second terminal takes the intersection of setA3 and setA2, and then randomly selects resources from the intersection for signaling or data transmission. If the resources included in the intersection of setA2 and setA3 are insufficient, the second terminal may ignore setA2 and randomly select resources from setA3.
  • Example 4 (For broadcast Broadcast, the second terminal selects the cooperative UE, and sends the first SCI to the first terminal, the first SCI includes request information, and the request information includes the user identification number)
  • the first terminal sends a cooperative UE declaration to indicate that the first terminal can or is willing to become a cooperative UE.
  • the second terminal selects one or more terminals from these terminals as the first terminal, and after the second terminal selects the first terminal, the second terminal sends a message to the first terminal.
  • Request information The request information is used to request the first terminal to send cooperation information.
  • the first terminal receives the request information from the second terminal, and determines whether to send cooperation information. If it is determined that the cooperation information is to be sent, the first terminal sends the cooperation information.
  • the process of sending collaboration information mainly includes:
  • Step 1 The first terminal sends a cooperative UE declaration to indicate that the first terminal can or is willing to become a cooperative UE.
  • the cooperating UE declaration is indicated by bits in the second SCI, which is transmitted through PSCCH or PSSCH.
  • the first terminal may also declare its time limit as a cooperative UE through the second SCI. For example, at time t1, the first terminal notifies it of the time length L of being a cooperative UE, that is, the start time when the first terminal can or is willing to become a cooperative UE is t1, and the end time is t1+L-1. During the time period [t1, t1+L-1], the first terminal can act as a cooperative UE and transmit cooperative information for other terminals.
  • Step 2 After receiving the cooperative UE declaration of one or more UEs, the second terminal selects one or more UEs as cooperative UEs from these UEs.
  • the cooperative UEs selected by the second terminal include the first terminal.
  • the second terminal determines all or part of the UEs satisfying the following conditions as cooperative UEs by receiving the cooperative UE declaration of one or more UEs:
  • the distance between the second terminal and the UE does not exceed the distance threshold; the angle between the movement direction of the second terminal and the movement direction of the UE indicated by the SCI of the UE is the remainder of ⁇ /2, and does not exceed the movement direction Threshold value for the included angle to be modulo ⁇ /2; the SCI of the UE indicates that the UE can or is willing to become a cooperative UE.
  • Step 3 The second terminal sends request information to the selected coordinated UE for requesting the coordinated UE to feed back coordination information.
  • the second terminal may send the request information through a specific SCI format.
  • the second terminal sends the first SCI, and the bits in the first SCI indicate the user identification number of the selected cooperative UE.
  • the second terminal may further indicate to the target terminal a time window for sending the collaboration information through the first SCI.
  • the second terminal may also indicate a destination identifier to the target terminal through the first SCI, where the destination identifier is a group identifier, which is used to distinguish different UE groups.
  • Step 4 The first terminal receives the request information sent by the second terminal, and determines whether to send cooperation information.
  • the first terminal may send the cooperation information to the second terminal as a cooperative UE. If the source ID of the first terminal is the same as one of the user identification numbers of the cooperating UEs indicated in the first SCI, the first terminal sends the cooperating information to the second terminal as the cooperating UE.
  • the target parameter includes the source ID of the first terminal, and the condition information includes the user identification number of the cooperating UE.
  • Step 5 The first terminal sends collaboration information.
  • the sending of the cooperation information falls within the time window for sending the cooperation information notified by the second terminal in the first SCI.
  • the collaboration information includes at least one resource set, which may be a resource set consisting of recommended resources or available resources, or a resource set consisting of resources that are not recommended for use.
  • the method for the first terminal to determine the recommended resource set is: the first terminal determines the occupied resources indicated by the non-first terminal by monitoring the SCIs of other non-first terminals, and measures the PSCCH DMRS or PSSCH DRMS of the non-first terminal , get the corresponding RSRP.
  • the first terminal excludes resources whose RSRP is greater than the RSRP threshold value within the time window of resource selection indicated by the non-first terminal as occupied or indicated to be occupied. gather.
  • the second terminal receives the cooperation information sent by the first terminal, selects resources based on the cooperation information, and the second terminal determines the resource set setA2 based on the second bitmap indicated by the first terminal.
  • the second terminal obtains the occupied resources indicated by the non-second terminal by monitoring the SCI of other non-second terminals.
  • the second terminal obtains the RSRP between the second terminal and the non-second terminal by measuring the PSCCH DMRS or PSSCH DRMS of the non-second terminal.
  • the second terminal excludes resources whose RSRPs are greater than the threshold value and are indicated to be occupied by the non-second terminal or the resources indicated to be occupied within the time window for resource selection, and the remaining resources are marked as setA3.
  • the second terminal takes the intersection of setA2 and setA3, and then randomly selects resources from the intersection for signaling and data transmission. If the resources included in the intersection of setA2 and setA3 are insufficient, the second terminal may ignore setA2 and randomly select resources from setA3.
  • Example 5 the second terminal indicates the condition information, and the first terminal sends the cooperation information to the target terminal as a cooperative UE when the target parameter satisfies the restriction of the condition information
  • FIG. 8 is a schematic diagram of a process of sending cooperation information according to another embodiment. As shown in Figure 8, the process of sending collaboration information mainly includes:
  • Step 1 The second terminal indicates condition information to the first through the first SCI, and the condition information includes:
  • the threshold value of the angle between the movement direction of the first terminal and the movement direction of the target terminal is ⁇ /2, for example, ⁇ /12 radians; the distance threshold between the first terminal and the target terminal is, for example, 300 meters.
  • Step 2 The first terminal obtains target parameters according to the SCI of the target terminal, and the target parameters include:
  • the included angle ⁇ between the movement direction of the first terminal and the movement direction of the target terminal is the remainder of ⁇ /2; the distance between the first terminal and the target terminal.
  • the first terminal calculates the included angle between the movement direction of the first terminal and the movement direction of the target terminal based on the movement direction of the target terminal indicated by the SCI of the target terminal and the movement direction of the first terminal itself, and takes the remainder of ⁇ /2 .
  • the first terminal acquires the area identifier of the target terminal indicated by the bits in the SCI of the target terminal, and determines the distance between the first terminal and the target terminal based on the area identifier of the first terminal itself and the area identifier of the target terminal.
  • the area identifier is used to represent a rectangular area, and the first terminal calculates the center position coordinates of the rectangular area corresponding to its own area identifier, and calculates the center position coordinates of the rectangular area corresponding to the target terminal area identifier, and then calculates the first terminal based on the two center position coordinates. The distance between a terminal and the target terminal.
  • Step 3 For each target terminal (the target terminal is a cooperative UE that supports sending cooperation information), the first terminal compares the target parameter and the condition information, and determines whether to send the cooperation information.
  • the first terminal may send coordination information as a coordinated UE:
  • the angle ⁇ between the movement direction of the first terminal and the movement direction of the target terminal is less than ⁇ /12 radians; the distance between the first terminal and the target terminal is less than 300 meters; the target terminal is a cooperative UE that can send cooperation information .
  • Step 4 If the target parameter satisfies the restriction of the condition information, the first terminal may act as a cooperative UE and send the cooperative information to the third terminal, indicating a set of resources recommended to the third terminal, or a set of resources not recommended for use by the third terminal .
  • the resource set corresponding to the collaboration information is the resource set recommended by the first terminal.
  • the method for the first terminal to acquire the recommended resource set is as follows: the first terminal acquires the occupied resources indicated by the non-first terminal by monitoring the SCI of the non-first terminal. The first terminal acquires, by measuring the PSCCH DMRS or PSSCH DRMS of the non-first terminal, the RSRP of the reference signal received by the first terminal from the non-first terminal. The first terminal excludes resources in the resource selection window that are indicated as occupied by non-first terminals and whose RSRP is greater than the threshold. The remaining resources are marked as setA1, and setA1 is a set of resources recommended by the first terminal.
  • the third terminal and the second terminal may be the same terminal, or may be different terminals.
  • the third terminal receives the cooperation information sent by the first terminal, the third terminal selects resources based on the cooperation information, and the third terminal determines the resource set setA2 based on the second bitmap indicated by the first terminal.
  • the third terminal obtains the occupied resources indicated by the non-third terminal by monitoring the SCI of other non-third terminals.
  • the third terminal obtains the RSRP at which the third terminal receives the reference signal of the non-third terminal.
  • the third terminal excludes resources in the resource selection window that are indicated as occupied by non-third terminals and whose corresponding RSRP is greater than the threshold, and the remaining resources are marked as setA3.
  • the third terminal takes the intersection of setA2 and setA3, and then randomly selects resources from the intersection for signaling and data transmission of the third terminal. If the resources included in the intersection of setA2 and setA3 are insufficient, the third terminal ignores setA2, and randomly selects resources from setA3 for signaling and data transmission of the third terminal.
  • Example 6 (The cooperative UE that satisfies the restriction condition is less than the threshold, then the first terminal decides that it is a cooperative UE)
  • the second terminal sends the condition information to the first terminal, and the first terminal obtains the target parameter.
  • the first terminal compares the condition information and the target parameter to determine whether to send the cooperation information. By comparing the condition information with the target parameter, if the number of coordinated UEs found by the first terminal that satisfies the following conditions is less than the threshold of the number of coordinated UEs, the first terminal sends the coordination information as a coordinated UE:
  • the angle between the movement direction of the first terminal and the movement direction of the UE is ⁇ /2, which is less than the threshold value of the angle between the movement direction and ⁇ /2; the distance between the first terminal and the UE is less than the distance threshold, for example, 300 meters; the UE is a cooperative UE.
  • the process of sending collaboration information mainly includes:
  • Step 1 The second terminal indicates condition information through the first SCI, and the condition information includes:
  • the angle between the movement direction of the first terminal and the movement direction of the target terminal is the threshold value of the remainder of ⁇ /2, such as ⁇ /12 radians; the distance threshold value between the first terminal and the target terminal, such as 300 meters;
  • the threshold value of the number of cooperative UEs is, for example, 3.
  • Step 2 The first terminal obtains target parameters according to the SCI of the target terminal, and the target parameters include:
  • the included angle ⁇ between the movement direction of the first terminal and the movement direction of the target terminal is the remainder of ⁇ /2; the distance between the first terminal and the target terminal.
  • the first terminal calculates the included angle between the movement direction of the first terminal and the movement direction of the target terminal based on the movement direction of the target terminal indicated by the SCI of the target terminal and the movement direction of the first terminal itself, and takes the remainder of ⁇ /2 .
  • the first terminal acquires the area identifier of the target terminal indicated by the bits in the SCI of the target terminal, and determines the distance between the first terminal and the target terminal based on the area identifier of the first terminal itself and the area identifier of the target terminal.
  • the area identifier is used to represent a rectangular area, and the first terminal calculates the center position coordinates of the rectangular area corresponding to its own area identifier, and calculates the center position coordinates of the rectangular area corresponding to the target terminal area identifier, and then calculates the first terminal based on the two center position coordinates. The distance between a terminal and the target terminal.
  • Step 3 For each target terminal (the target terminal is a cooperative UE that supports sending cooperation information), the first terminal compares the target parameter and the condition information, and determines whether to send the cooperation information.
  • the first terminal may send coordination information as a coordinated UE:
  • the angle ⁇ between the movement direction of the first terminal and the movement direction of the target terminal is less than ⁇ /12 radians; the distance between the first terminal and the target terminal is less than 300 meters; the target terminal is a cooperative UE that can send cooperation information .
  • Step 4 If the number of cooperative UEs that meet the above conditions is less than the number threshold, the first terminal may act as a cooperative UE and send cooperation information to the third terminal, indicating the resource set recommended to the third terminal, or indicating that the third terminal is not recommended.
  • the resource set corresponding to the collaboration information is the resource set recommended by the first terminal.
  • the method for the first terminal to acquire the recommended resource set is as follows: the first terminal acquires the occupied resources indicated by the non-first terminal by monitoring the SCI of the non-first terminal. The first terminal acquires, by measuring the PSCCH DMRS or PSSCH DRMS of the non-first terminal, the RSRP of the reference signal received by the first terminal from the non-first terminal. The first terminal excludes resources in the resource selection window that are indicated as occupied by non-first terminals and whose RSRP is greater than the threshold. The remaining resources are marked as setA1, and setA1 is a set of resources recommended by the first terminal.
  • the third terminal and the second terminal may be the same terminal, or may be different terminals.
  • the third terminal receives the cooperation information sent by the first terminal, the third terminal selects resources based on the cooperation information, and the third terminal determines the resource set setA2 based on the second bitmap indicated by the first terminal.
  • the third terminal obtains the occupied resources indicated by the non-third terminal by monitoring the SCI of the non-third terminal.
  • the third terminal obtains the RSRP at which the third terminal receives the reference signal of the non-third terminal.
  • the third terminal excludes resources in the resource selection window that are indicated as occupied by non-third terminals and whose corresponding RSRP is greater than the threshold, and the remaining resources are marked as setA3.
  • the third terminal takes the intersection of setA2 and setA3, and then randomly selects resources from the intersection for signaling and data transmission of the third terminal. If the resources included in the intersection of setA2 and setA3 are insufficient, the third terminal ignores setA2, and randomly selects resources from setA3 for signaling and data transmission of the third terminal.
  • Example 7 The second terminal indicates the condition information, and the first terminal judges whether to cancel the transmission of the cooperation information before the transmission of the cooperation information when the target parameter satisfies the restriction of the condition information
  • the second terminal sends the condition information to the first terminal, and the first terminal obtains the target parameter.
  • the first terminal compares the condition information and the target parameter to determine whether to send the collaboration information, including:
  • the first terminal judges whether to send the cooperation information by comparing the condition information and the target parameter; the first terminal selects a target time-frequency resource, and the target time-frequency resource is used for the transmission of the cooperation information; the first terminal detects other For the third SCI not sent by the first terminal, based on the detection result, it is determined whether to cancel the transmission of the cooperation information.
  • the first terminal If the first terminal does not cancel the transmission of the cooperation information, the first terminal sends the cooperation information to the third terminal, and the third terminal receives the cooperation information, and determines resources for signaling or information transmission based on the cooperation information.
  • FIG. 9 is a schematic diagram of a process of sending cooperation information according to yet another embodiment. As shown in Figure 9, the process of sending collaboration information mainly includes:
  • Step 1 The first terminal determines whether to send collaboration information.
  • the judgment process includes:
  • Step 1-1 The second terminal indicates condition information through the first SCI, and the condition information includes:
  • the angle between the movement direction of the first terminal and the movement direction of the target terminal is the threshold value of the remainder of ⁇ /2, such as ⁇ /12 radians; the distance threshold value between the first terminal and the target terminal, such as 300 meters;
  • the threshold value of the number of cooperative UEs is, for example, 3.
  • Step 1-2 The first terminal obtains target parameters according to the SCI of the target terminal, and the target parameters include:
  • the included angle ⁇ between the movement direction of the first terminal and the movement direction of the target terminal is the remainder of ⁇ /2; the distance between the first terminal and the target terminal.
  • the first terminal calculates the included angle between the movement direction of the first terminal and the movement direction of the target terminal based on the movement direction of the target terminal indicated by the SCI of the target terminal and the movement direction of the first terminal itself, and takes the remainder of ⁇ /2 .
  • the first terminal acquires the area identifier of the target terminal indicated by the bits in the SCI of the target terminal, and determines the distance between the first terminal and the target terminal based on the area identifier of the first terminal itself and the area identifier of the target terminal.
  • the area identifier is used to represent a rectangular area, and the first terminal calculates the center position coordinates of the rectangular area corresponding to its own area identifier, and calculates the center position coordinates of the rectangular area corresponding to the target terminal area identifier, and then calculates the first terminal based on the two center position coordinates. The distance between a terminal and the target terminal.
  • Step 1-3 For each target terminal (the target terminal is a cooperative UE that supports sending cooperation information), the first terminal compares target parameters and condition information, and determines whether to send cooperation information.
  • the first terminal may send coordination information as a coordinated UE:
  • the angle ⁇ between the movement direction of the first terminal and the movement direction of the target terminal is less than ⁇ /12 radians; the distance between the first terminal and the target terminal is less than 300 meters; the target terminal is a cooperative UE that can send cooperation information .
  • Step 2 After judging to send the cooperation information, the first terminal selects a target time-frequency resource, and the target time-frequency resource is used for the transmission of the cooperation information.
  • FIG. 10 is a schematic diagram of selecting a target time-frequency resource according to an embodiment.
  • UE1 as the first terminal, selects resource 1 as the target time-frequency resource for the transmission of cooperation information at time t1;
  • UE2 as the first terminal, selects the target time-frequency resource for the transmission of cooperation information at time t2 for resource 2.
  • Step 3 Before the actual transmission of the cooperation information, the first terminal detects the third SCI not sent by the first terminal, and judges whether to cancel the transmission of the cooperation information based on the detection result.
  • the number threshold is 1, that is, if the first terminal detects that the third SCI sent by any UE satisfies the restriction of the condition information, the cooperation information is not sent.
  • the first terminal If the first terminal detects that the third SCI from other non-first terminals meets the following conditions before actually sending the cooperation information, the first terminal cancels the sending of the cooperation information:
  • the third SCI is used to notify the time-frequency resources of the cooperation information sent by the UE itself; the angle between the movement direction of the first terminal and the movement direction of the UE is the value obtained by taking the remainder of ⁇ /2, which is smaller than the angle between the movement directions
  • the threshold value of for example, is ⁇ /12 radians; the distance between the first terminal and the UE is less than the distance threshold value of 300 meters.
  • the first terminal is UE2, and UE2 cannot detect the third SCI from other UEs that satisfies the above three conditions, so UE2 does not cancel the transmission of the cooperation information; the first terminal is UE1, and UE1 detects that the The third SCI satisfies the above three constraints. Therefore, UE1 cancels the transmission of the cooperation information.
  • Step 4 The first terminal does not detect the third SCI that satisfies the conditional information restriction, and sends the cooperation information through the selected target time-frequency resource, indicating to the third terminal the set of resources recommended to the third terminal, or indicating that the third terminal is not recommended. A collection of resources used by the terminal.
  • the resource set corresponding to the collaboration information is the resource set recommended by the first terminal.
  • the method for the first terminal to acquire the recommended resource set is as follows: the first terminal acquires the occupied resources indicated by the non-first terminal by monitoring the SCI of the non-first terminal. The first terminal acquires, by measuring the PSCCH DMRS or PSSCH DRMS of the non-first terminal, the RSRP of the reference signal received by the first terminal from the non-first terminal. The first terminal excludes resources in the resource selection window that are indicated as occupied by non-first terminals and whose RSRP is greater than the threshold. The remaining resources are marked as setA1, and setA1 is a set of resources recommended by the first terminal.
  • Step 5 The first terminal detects the third SCI that satisfies the restriction of the condition information, and cancels the sending of the cooperation information.
  • the third terminal and the second terminal may be the same terminal, or may be different terminals.
  • the third terminal receives the cooperation information sent by the first terminal, the third terminal selects resources based on the cooperation information, and the third terminal determines the resource set setA2 based on the second bitmap indicated by the first terminal.
  • the third terminal obtains the occupied resources indicated by the non-third terminal by monitoring the SCI of the non-third terminal.
  • the third terminal obtains the RSRP at which the third terminal receives the reference signal of the non-third terminal.
  • the third terminal excludes resources in the resource selection window that are indicated as occupied by non-third terminals and whose corresponding RSRP is greater than the threshold, and the remaining resources are marked as setA3.
  • the third terminal takes the intersection of setA2 and setA3, and then randomly selects resources from the intersection for signaling or data transmission of the third terminal. If the resources included in the intersection of setA2 and setA3 are insufficient, the third terminal ignores setA2, and randomly selects resources from setA3 for signaling or data transmission of the third terminal.
  • the target parameters and condition information are described by comparing the angle between the movement direction and the threshold value of the angle between the movement direction. You can also replace or add one or more of the following: happening:
  • the target terminal compares the road direction indicated by the first terminal with the road direction where the first terminal is located; the target terminal compares the road sign indicated by the first terminal with the road sign where the first terminal is located; the target terminal is the road sign indicated by the first terminal
  • the range of the road direction is compared with the road direction where the first terminal is located; the target terminal is the movement direction indicated by the first terminal and the movement direction where the first terminal is located is compared; the target terminal is the range of the movement direction indicated by the first terminal and the first terminal.
  • the moving direction of a terminal is compared; the angle between the moving direction of the first terminal and the target terminal is compared with the threshold value of the moving direction angle; the angle between the road direction of the first terminal and the target terminal is compared with the road direction angle.
  • the threshold value of the road direction is compared between the first terminal and the target terminal, and the threshold value of the road direction angle is compared.
  • a resource determination method is also provided, which can be applied to a second terminal.
  • the second terminal may be a transmitting terminal in a multicast mode or a broadcast mode, and the second terminal, according to cooperation information sent by the first terminal, Determine the recommended or not recommended resources to reduce conflict or interference between different resources and improve the reliability of side link communication.
  • This method is also applicable to the scenario where the transmitting terminal adopts unicast communication.
  • the second terminal is a target terminal of the first terminal.
  • FIG. 13 is a flowchart of a method for determining resources provided by an embodiment. As shown in FIG. 13 , the method provided in this embodiment includes step 210 and step 220 .
  • step 210 the cooperation information sent by the first terminal when the target parameter satisfies the restriction of the condition information is received, where the cooperation information includes a resource set.
  • step 220 resources are determined according to the collaboration information.
  • it also includes:
  • Step 200 Send a first SCI to the first terminal; the first SCI includes at least one of the following: the movement direction of the second terminal; the road direction of the second terminal; Region ID.
  • it also includes:
  • Step 202 Send the first SCI to the first terminal; the first SCI includes request information, and the request information includes at least one of the following:
  • the user identification number of the cooperative UE the first bitmap, where the first bitmap is used to indicate the cooperative UE or used to request the first terminal to send the cooperative information.
  • it also includes:
  • Step 204 Send the first SCI to the first terminal; the first SCI includes request information, and the request information includes the user identification number of the coordinated UE, and the user identification number of the coordinated UE is the source ID of the coordinated UE .
  • it also includes:
  • Step 206 Send the first SCI to the first terminal; the first SCI includes at least one of the following:
  • the second terminal is the road direction indicated by the first terminal; the second terminal is the range of the road direction indicated by the first terminal; the second terminal is the road sign indicated by the first terminal; the second terminal is the movement direction indicated by the first terminal; The second terminal is the range of the movement direction indicated by the first terminal; the threshold value of the angle between the movement direction of the first terminal and the movement direction of the target terminal; the value range of the angle between the movement direction of the first terminal and the movement direction of the target terminal; The threshold value of the angle between the movement direction of the terminal and the movement direction of the target terminal is 90 or the remainder of ⁇ /2; the value range of the angle between the movement direction of the first terminal and the movement direction of the target terminal is 90 or the remainder of ⁇ /2; Threshold value of the angle between the direction of the road where the first terminal is located and the direction of the road where the target terminal is located; the value range of the angle between the direction of the road where the first terminal is located and the direction of the road where the target terminal is located; the direction of the road where the first terminal is
  • it also includes:
  • Step 208 Receive a second SCI, where the second SCI is used to indicate that the first terminal supports serving as a cooperative terminal.
  • the cooperation information includes a second bitmap; each bit in the second bitmap is used to indicate that a subchannel on a time slot is a recommended resource or a non-recommended resource.
  • FIG. 11 is a flowchart of a method for determining a resource provided by an embodiment.
  • the apparatus for sending cooperation information includes: a condition obtaining module 310 and a sending module 320 .
  • the condition obtaining module 310 is configured to obtain the condition information; the sending module 320 is configured to send the collaboration information when the target parameter satisfies the restriction of the condition information, where the collaboration information includes a resource set.
  • the first terminal can determine whether it can be used as a cooperative terminal, and if it can be used as a cooperative terminal, it sends cooperation information and recommends a suitable terminal to the transmitting terminal. resource collection, thereby reducing conflict or interference of different resources and improving the reliability of side link communication.
  • the method is also applicable to the scenario where the transmitting terminal adopts the unicast communication mode.
  • condition information is pre-configured or pre-stored information, or information configured through RRC signaling, or information determined according to the first SCI sent by the second terminal.
  • condition information includes at least one of the following:
  • the target terminal is the road direction indicated by the first terminal; the target terminal is the range of the road direction indicated by the first terminal; the target terminal is the road sign indicated by the first terminal; the target terminal is the movement direction indicated by the first terminal; The range of the movement direction indicated by the terminal; the threshold value of the angle between the movement direction of the first terminal and the movement direction of the target terminal; the value range of the angle between the movement direction of the first terminal and the movement direction of the target terminal; the movement direction of the first terminal and the target terminal.
  • the threshold value of the included angle between the moving direction of the terminal is 90 or the remainder of ⁇ /2; the value range of the angle between the moving direction of the first terminal and the moving direction of the target terminal is 90 or the remainder of ⁇ /2; the road where the first terminal is located
  • the threshold value of the included angle between the direction and the direction of the road where the target terminal is located; the value range of the included angle between the direction of the road where the first terminal is located and the direction of the road where the target terminal is located; the angle between the direction of the
  • condition information includes the first SCI sent by the second terminal; the first SCI includes request information, and the request information includes at least one of the following:
  • the user identification number of the cooperative UE the first bitmap, where the first bitmap is used to indicate the cooperative UE or used to request the first terminal to send the cooperative information.
  • condition information includes the first SCI sent by the second terminal; the first SCI includes request information, and the request information includes the user identification number of the cooperative UE, the user identification number of the cooperative UE is the source ID of the cooperative UE.
  • the target parameter includes at least one of the following:
  • the target parameter includes at least one of the following:
  • the user identification number of the first terminal the corresponding position of the first terminal in the bitmap.
  • it also includes:
  • the movement direction determination module is configured to determine the movement direction of the second terminal according to the first SCI sent by the second terminal.
  • it also includes:
  • the road direction determination module is configured to determine the road direction of the second terminal according to the first SCI sent by the second terminal.
  • it also includes:
  • the distance determination module is configured to determine the distance between the first terminal and the second terminal according to the area identifier in the first SCI sent by the second terminal and the area identifier of the first terminal.
  • the sending module 320 is configured to send the cooperation information when the number of coordinated UEs is less than a threshold value of the number of coordinated UEs.
  • the sending module 320 is configured to:
  • the cooperation information is sent when the user identification number of the first terminal belongs to the user identification number of the coordinated UE.
  • the sending module 320 is configured to send the cooperation information when the bit indication of the corresponding position of the first terminal in the bitmap is a set value.
  • it also includes:
  • the first indicating module is configured to send a second SCI, where the second SCI is used to indicate that the first terminal supports serving as a cooperative terminal.
  • it also includes:
  • the second indicating module is configured to send a second SCI, where the second SCI is used to indicate the time limit of the first terminal as a cooperative terminal.
  • it also includes:
  • the detection module is configured to detect the third SCI; the cancellation module is configured to send the cooperation information or cancel the sending of the cooperation information according to the detection result of the third SCI.
  • the cooperation information includes a second bitmap; each bit in the second bitmap is used to indicate that a subchannel on a time slot is a recommended resource or a non-recommended resource.
  • the apparatus for sending cooperation information proposed in this embodiment and the method for sending cooperation information proposed in the above-mentioned embodiments belong to the same concept.
  • the send method has the same effect.
  • FIG. 12 is a schematic structural diagram of an apparatus for sending cooperation information according to an embodiment.
  • the resource determining apparatus includes: an information receiving module 410 and a resource determining module 420 .
  • the information receiving module 410 is configured to receive the collaboration information sent by the first terminal when the target parameter satisfies the restriction of the condition information, the collaboration information includes a resource set; the resource determining module 420 is configured to determine the resource according to the collaboration information.
  • the second terminal may be a transmitting terminal in a multicast mode or a broadcast mode, and the second terminal determines recommended or not recommended resources according to the cooperation information sent by the first terminal, thereby reducing different resources collision or interference, improving the reliability of side link communication.
  • the method is also applicable to the scenario where the transmitting terminal adopts the unicast communication mode.
  • it also includes:
  • a first sending module configured to send a first SCI to the first terminal;
  • the first SCI includes at least one of the following: the movement direction of the second terminal; the road direction of the second terminal; the The area identifier of the second terminal.
  • it also includes:
  • the second sending module is configured to send the first SCI to the first terminal;
  • the first SCI includes request information, and the request information includes at least one of the following:
  • the user identification number of the cooperative UE the first bitmap, where the first bitmap is used to indicate the cooperative UE or used to request the first terminal to send the cooperative information.
  • it also includes:
  • the third sending module is configured to send the first SCI to the first terminal; the first SCI includes request information, and the request information includes the user identification number of the cooperative UE, and the user identification number of the cooperative UE is the cooperative UE. Source ID of the UE.
  • it also includes:
  • the fourth sending module is configured to send the first SCI to the first terminal;
  • the first SCI includes at least one of the following:
  • the second terminal is the road direction indicated by the first terminal; the second terminal is the range of the road direction indicated by the first terminal; the second terminal is the road sign indicated by the first terminal; the second terminal is the movement direction indicated by the first terminal; The second terminal is the range of the movement direction indicated by the first terminal; the threshold value of the angle between the movement direction of the first terminal and the movement direction of the target terminal; the value range of the angle between the movement direction of the first terminal and the movement direction of the target terminal; The threshold value of the angle between the movement direction of the terminal and the movement direction of the target terminal is 90 or the remainder of ⁇ /2; the value range of the angle between the movement direction of the first terminal and the movement direction of the target terminal is 90 or the remainder of ⁇ /2; Threshold value of the angle between the direction of the road where the first terminal is located and the direction of the road where the target terminal is located; the value range of the angle between the direction of the road where the first terminal is located and the direction of the road where the target terminal is located; the direction of the road where the first terminal is
  • it also includes:
  • the receiving module is configured to receive a second SCI, where the second SCI is used to indicate that the first terminal supports serving as a cooperative terminal.
  • the cooperation information includes a second bitmap; each bit in the second bitmap is used to indicate that a subchannel on a time slot is a recommended resource or a non-recommended resource.
  • the resource determination device proposed in this embodiment belongs to the same concept as the resource determination method proposed in the above-mentioned embodiment.
  • FIG. 14 is a schematic diagram of a hardware structure of a communication node provided by an embodiment.
  • the communication node provided by the present application includes a memory 52 , a processor 51 and A computer program stored in the memory and executable on the processor, when the processor 51 executes the program, the above-mentioned method for sending cooperative information or method for determining resources is implemented.
  • the communication node may also include a memory 52; the number of processors 51 in the communication node may be one or more, and one processor 51 is taken as an example in FIG. 14; the memory 52 is used to store one or more programs; the one or more Each program is executed by the one or more processors 51, so that the one or more processors 51 implement the method for sending cooperative information or the method for determining resources as described in the embodiments of the present application.
  • the communication node further includes: a communication device 53 , an input device 54 and an output device 55 .
  • the processor 51 , the memory 52 , the communication device 53 , the input device 54 and the output device 55 in the communication node may be connected by a bus or in other ways, and the connection by a bus is taken as an example in FIG. 14 .
  • the input device 54 may be used to receive input numerical or character information, and to generate key signal input related to user settings and function control of the communication node.
  • the output device 55 may include a display device such as a display screen.
  • the communication device 53 may include a receiver and a transmitter.
  • the communication device 53 is configured to transmit and receive information according to the control of the processor 51 .
  • the memory 52 can be configured to store software programs, computer-executable programs, and modules, such as program instructions/modules corresponding to the collaborative information sending method described in the embodiments of the present application (for example, in the collaborative information sending device).
  • the memory 52 may include a stored program area and a stored data area, wherein the stored program area may store an operating system, an application program required for at least one function; the stored data area may store data created according to use of the communication node, and the like.
  • memory 52 may include high speed random access memory, and may also include nonvolatile memory, such as at least one magnetic disk storage device, flash memory device, or other nonvolatile solid state storage device.
  • memory 52 may include memory located remotely from processor 51, which may be connected to the communication node through a network.
  • networks include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.
  • An embodiment of the present application further provides a storage medium, where a computer program is stored in the storage medium, and when the computer program is executed by a processor, the method for sending collaboration information or the method for determining a resource described in any one of the embodiments of the present application is implemented.
  • the method for sending collaboration information includes: acquiring condition information; and sending collaboration information when a target parameter satisfies the restriction of the condition information, where the collaboration information includes a resource set.
  • the method for determining resources includes: receiving cooperation information sent by a first terminal when a target parameter satisfies the restriction of condition information, where the cooperation information includes a resource set; and determining resources according to the cooperation information.
  • the computer storage medium of the embodiments of the present application may adopt any combination of one or more computer-readable media.
  • the computer-readable medium may be a computer-readable signal medium or a computer-readable storage medium.
  • the computer readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus or device, or any combination of the above.
  • Examples (non-exhaustive list) of computer readable storage media include: electrical connections with one or more wires, portable computer disks, hard disks, random access memory (RAM), read only memory (Read Only Memory) Memory, ROM), erasable programmable read only memory (Erasable Programmable Read Only Memory, EPROM), flash memory, optical fiber, portable CD-ROM, optical storage device, magnetic storage device, or any suitable combination of the above.
  • a computer-readable storage medium can be any tangible medium that contains or stores a program that can be used by or in connection with an instruction execution system, apparatus, or device.
  • a computer-readable signal medium may include a propagated data signal in baseband or as part of a carrier wave, with computer-readable program code embodied thereon. Such propagated data signals may take a variety of forms including, but not limited to, electromagnetic signals, optical signals, or any suitable combination of the foregoing.
  • a computer-readable signal medium can also be any computer-readable medium other than a computer-readable storage medium that can transmit, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device .
  • Program code embodied on a computer-readable medium may be transmitted using any suitable medium, including but not limited to: wireless, wire, optical fiber cable, radio frequency (RF), etc., or any suitable combination of the foregoing.
  • suitable medium including but not limited to: wireless, wire, optical fiber cable, radio frequency (RF), etc., or any suitable combination of the foregoing.
  • Computer program code for carrying out the operations of the present application may be written in one or more programming languages, including object-oriented programming languages, such as Java, Smalltalk, C++, and conventional A procedural programming language, such as the "C" language or similar programming language.
  • the program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer, or entirely on the remote computer or server.
  • the remote computer may be connected to the user's computer through any kind of network, including a Local Area Network (LAN) or Wide Area Network (WAN), or may be connected to an external computer (eg, use an internet service provider to connect via the internet).
  • LAN Local Area Network
  • WAN Wide Area Network
  • user terminal encompasses any suitable type of wireless user equipment, such as a mobile telephone, portable data processing device, portable web browser or vehicle mounted mobile station.
  • the various embodiments of the present application may be implemented in hardware or special purpose circuits, software, logic, or any combination thereof.
  • some aspects may be implemented in hardware, while other aspects may be implemented in firmware or software that may be executed by a controller, microprocessor or other computing device, although the application is not limited thereto.
  • Embodiments of the present application may be implemented by the execution of computer program instructions by a data processor of a mobile device, eg in a processor entity, or by hardware, or by a combination of software and hardware.
  • Computer program instructions may be assembly instructions, Instruction Set Architecture (ISA) instructions, machine instructions, machine-dependent instructions, microcode, firmware instructions, state setting data, or written in any combination of one or more programming languages source or object code.
  • ISA Instruction Set Architecture
  • the block diagrams of any logic flow in the figures of the present application may represent program steps, or may represent interconnected logic circuits, modules and functions, or may represent a combination of program steps and logic circuits, modules and functions.
  • Computer programs can be stored on memory.
  • the memory may be of any type suitable for the local technical environment and may be implemented using any suitable data storage technology, such as, but not limited to, Read-Only Memory (ROM), Random Access Memory (RAM), optical Memory devices and systems (Digital Video Disc (DVD) or Compact Disk (CD), etc.
  • Computer readable media may include non-transitory storage media.
  • Data processors may be any suitable for the local technical environment Type, such as but not limited to general purpose computer, special purpose computer, microprocessor, digital signal processor (Digital Signal Processing, DSP), application specific integrated circuit (Application Specific Integrated Circuit, ASIC), programmable logic device (Field-Programmable Gate Array , FPGA) and processors based on multi-core processor architectures.
  • DSP Digital Signal Processing
  • ASIC Application Specific Integrated Circuit
  • FPGA Field-Programmable Gate Array
  • processors based on multi-core processor architectures.

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Abstract

本公开涉及一种协作信息发送方法、资源确定方法、通信节点及存储介质。该协作信息发送方法包括：获取条件信息；在目标参数满足所述条件信息的限制的情况下发送协作信息，所述协作信息包括资源集合。

Description

协作信息发送方法、资源确定方法、通信节点及存储介质 技术领域
本申请涉及无线通信网络领域，例如涉及一种协作信息发送方法、资源确定方法、通信节点及存储介质。
背景技术
在边链路(Sidelink)通信系统中，用户设备(User Equipment，UE)之间的业务可以不经过网络侧，即不经过UE与基站之间的蜂窝链路的转发，而是直接由数据源UE通过边链路传输给目标UE。边链路通信不但节省了无线频谱资源，而且降低了核心网的数据传输压力，能够减少系统资源占用，增加频谱效率，降低通信时延。在边链路通信过程中，发射终端通过监听资源的占用情况，选择用于信令或数据发射的资源，但由于发射终端受到地理位置的局限，不能观测到对应的一个或多个接收终端所在地理位置的真实干扰情况，发射终端自主选择的资源可能与其他终端传输的资源冲突或对其他终端传输的资源造成干扰，影响边链路通信的可靠性。
发明内容
本申请提供一种协作信息发送方法、资源确定方法、通信节点及存储介质，以提高边链路通信的可靠性。
本申请实施例提供一种协作信息发送方法，应用于第一终端，包括：
获取条件信息；在目标参数满足所述条件信息的限制的情况下发送协作信息，所述协作信息包括资源集合。
本申请实施例还提供了一种资源确定方法，应用于第二终端，包括：
接收第一终端在目标参数满足条件信息的限制的情况下发送的协作信息，所述协作信息包括资源集合；根据所述协作信息确定资源。
本申请实施例还提供了一种通信节点，包括：存储器、处理器以及存储在存储器上并可在处理器上运行的计算机程序，所述处理器执行所述程序时实现上述的协作信息发送方法或资源确定方法。
本申请实施例还提供了一种计算机可读存储介质，计算机可读存储介质上存储有计算机程序，该程序被处理器执行时实现上述的协作信息发送方法或资源确定方法。
附图说明
图1为一实施例提供的一种协作信息发送方法的流程图；
图2为一实施例提供的一种协作信息发送过程的示意图；
图3为一实施例提供的一种确定协作UE数目的示意图；
图4为一实施例提供的一种时频资源编号的示意图；
图5为一实施例提供的一种资源集合的示意图；
图6为另一实施例提供的一种确定协作UE数目的示意图；
图7为另一实施例提供的一种协作信息发送过程的示意图；
图8为又一实施例提供的一种协作信息发送过程的示意图；
图9为再一实施例提供的一种协作信息发送过程的示意图；
图10为一实施例提供的一种选择目标时频资源的示意图；
图11为一实施例提供的一种资源确定方法的流程图；
图12为一实施例提供的一种协作信息发送装置的结构示意图；
图13为一实施例提供的一种资源确定装置的结构示意图；
图14为一实施例提供的一种通信节点的硬件结构示意图。
具体实施方式
下面结合附图和实施例对本申请进行说明。此处所描述的具体实施例仅仅用于解释本申请。为了便于描述，附图中仅示出了与本申请相关的部分。
边链路通信中有两种资源分配模式：由基站调度以及终端自主选择。对于终端自主选择的模式，终端可以监听资源池范围内资源的使用情况，根据监听结果在资源池内优先选择未被其他终端占用的资源，或者与其他终端的传输干扰较小的资源，用于信令或数据的传输。发射终端需要选择终端传输定位相关信息。由于发射终端的地理位置的原因，发射终端不能观测到对应的一个或多个接收终端所在地理位置的真实干扰情况。因此，可以寻找协作终端为发射终端提供协作信息，辅助发射终端选择资源。然而，对于发射终端使用组播方式或广播方式发射信息的情况，如何为发射终端寻找合适的协作终端，并没有完善的方案。
在本申请实施例中，提供一种协作信息发送方法，该方法可应用于第一终端。针对采用组播方式或广播方式的发射终端，第一终端可以确定自身是否可以作为协作终端，如果可以作为协作终端，则发送协作信息，向发射终端推荐 合适的资源集合，从而减少不同资源冲突或干扰，提高边链路通信的可靠性。该方法也适用于发射终端采用单播通信方式的场景。
图1为一实施例提供的一种协作信息发送方法的流程图。如图1所示，本实施例提供的方法包括步骤110和步骤120。
在步骤110中，获取条件信息。
在步骤120中，在目标参数满足所述条件信息的限制的情况下发送协作信息，所述协作信息包括资源集合。
本实施例中，第一终端接收目标终端指示的条件信息，或者接收基站配置的条件信息，或者获取预先存储的条件信息，作为第一终端判断自身是否为协作UE的依据。例如，目标终端向第一终端发送边链路控制信息(Side Link Control Information，SCI)，第一终端据此可以确定其与目标终端之间的目标参数是否满足条件信息的限制，如果第一终端与目标终端之间的目标参数满足条件信息的限制则第一终端确定自身为协作UE，向目标终端或其他终端发送协作信息以推荐资源。
本实施例中目标终端可以是协作UE，可也以非协作UE。目标终端可以为多个，第一终端根据每个目标终端的目标参数，综合确定自身是否为协作UE。
本实施例中，第一终端根据目标参数和条件信息确定自身是否可以作为协作UE，向目标终端反馈协作信息，主要有两种方式：1)第一终端根据目标终端发送的信息确定目标参数，例如第一终端和目标终端的距离、第一终端接收的目标终端的参考信号的参考信号接收功率(Reference Signal Received Power，RSRP)、第一终端和目标终端的运动方向的夹角和/或目标终端为第一终端指示的道路方向等，然后第一终端将目标参数与条件信息对比，如果目标参数满足条件信息的限制则确定自身为协作UE；2)由目标终端确定哪些UE可以作为协作UE，通过向第一终端发送信息告知第一终端，第一终端根据目标终端发送的信息判断自身是否为其中的一个，如果是则确定自身为协作UE，这种情况下，目标终端也称为第二终端。
本实施例中，协作信息包括资源集合，可以是第一终端推荐使用的资源或可用资源构成的集合，也可以是不建议使用的资源构成的资源集合。
在一实施例中，所述条件信息为预配置或预存储的信息，或通过RRC信令配置的信息，或者根据第二终端发送的第一SCI确定的信息。
本实施例中，第二终端是指向第一终端指示目标参数和/或条件信息的UE，第二终端与目标终端可以相同，也可以不同。
在一实施例中，条件信息包括以下至少之一：
目标终端为第一终端指示的道路方向；目标终端为第一终端指示的道路方向的范围；目标终端为第一终端指示的道路标识；目标终端为第一终端指示的运动方向；目标终端为第一终端指示的运动方向的范围；第一终端运动方向与目标终端运动方向夹角的门限值；第一终端运动方向与目标终端运动方向夹角的取值范围；第一终端运动方向与目标终端运动方向夹角对90或者对π/2取余的门限值；第一终端运动方向与目标终端运动方向夹角对90或者对π/2取余的取值范围；第一终端所在道路方向与目标终端所在道路方向夹角的门限值；第一终端所在道路方向与目标终端所在道路方向夹角的取值范围；第一终端所在道路方向与目标终端所在道路方向夹角对90或者对π/2取余的门限值；第一终端所在道路方向与目标终端所在道路方向夹角对90或者对π/2取余的取值范围；第一终端与目标终端的距离门限值；第一终端与目标终端的距离取值范围；RSRP的门限值；RSRP的取值范围；协作UE的数目门限值。
本实施例主要针对上述的方式1)，第一终端根据目标终端发送的信息确定目标参数，目标参数包括第一终端所在的道路方向、第一终端所在的道路标识、第一终端的运动方向、第一终端与目标终端之间的距离、第一终端接收的目标终端的参考信号的RSRP、第一终端与目标终端的运动方向的夹角、第一终端与目标终端的运动方向的夹角取余、第一终端与目标终端的道路方向夹角和/或第一终端与目标终端的道路方向的夹角取余；相应的，条件信息包括这些目标参数的取值范围和/或门限值，其中，门限值可以为上限值、下限值和/或等级划分值。在此基础上，第一终端将目标参数与条件信息对比，目标参数满足条件信息的限制则确定自身为协作UE。
在一实施例中，所述条件信息包括第二终端发送的第一SCI；所述第一SCI中包括请求信息，所述请求信息包括以下至少之一：
协作UE的用户识别号；第一比特图(Bitmap)，所述第一比特图用于指示协作UE或者用于请求第一终端发送协作信息。
本实施例主要针对上述的方式2)，第一终端根据第二终端发送的第一SCI确定协作UE的用户识别号和/或比特图中指示的协作UE，判断自身是否属于其中的一个。
在一实施例中，所述条件信息包括第二终端发送的第一SCI；所述第一SCI中包括请求信息，所述请求信息包括协作UE的用户识别号，所述协作UE的用户识别号为协作UE的源标识(Identifier，ID)。
本实施例中，第一终端根据目标终端发送的第一SCI确定协作UE的用户识别号，用户识别号是指协作UE的源ID。
在一实施例中，目标参数包括以下至少之一：
第一终端所在的道路方向；第一终端所在的道路标识；第一终端的运动方向；所述第一终端与目标终端之间的距离；所述第一终端接收的目标终端的参考信号的RSRP；所述第一终端的道路方向与目标终端的道路方向的夹角；所述第一终端的道路方向与目标终端的道路方向的夹角对90或者对π/2取余；所述第一终端的运动方向与目标终端的运动方向的夹角；所述第一终端的运动方向与目标终端的运动方向的夹角对90或者对π/2取余。
本实施例中，第一终端根据目标终端发送的信息，可以确定目标终端为第一终端指示的道路方向；目标终端为第一终端指示的道路标识；目标终端为第一终端指示的运动方向；第一终端与目标终端之间的距离；第一终端接收的目标终端的参考信号的RSRP；第一终端所在的道路方向与目标终端所在的道路方向之间的夹角；第一终端所在的道路方向与目标终端所在的道路方向之间的夹角对90或者对π/2取余；第一终端的运动方向与目标终端的运动方向之间的夹角；第一终端的运动方向与目标终端的运动方向之间的夹角对90或者对π/2取余；协作终端的用户识别号。
例如，第一终端通过接收目标终端的发送的第一SCI，可以确定目标终端为第一终端指示的道路标识、道路方向和/或运动方向，如果目标终端为第一终端指示的道路标识、道路方向和/或运动方向，与第一终端所在的道路标识、道路方向和/或运动方向一致，则第一终端可以确定自身为协作UE。
例如，第一终端通过接收目标终端的发送的第一定位参考信号(或者第一定位参考信号和第一位置信息)，可以确定第一终端和目标终端之间的距离。
例如，第一终端通过对目标终端发送的参考信号(如第一定位参考信号或解调参考信号)进行测量，可以确定接收的目标终端的参考信号的RSRP。
例如，第一终端通过接收目标终端发送的第一SCI，可以确定第一终端与目标终端之间的运动方向的夹角和/或道路方向的夹角。
例如，目标终端已经确定哪些UE可作为协作UE，并将这些UE的用户识别号通过第一SCI发送给第一终端，第一终端接收第一SCI，确定自身的用户识别号是否属于第一SCI中指示的一个，从而判断自身是否为协作UE。这种情况下，目标终端发送的第一SCI可用于请求接收端UE作为协作UE向其发送定位相关信息。这类目标终端也称为第二终端，第一终端确定自身为协作UE后，可向第二终端发送协作信息。
在一实施例中，目标参数包括以下至少之一：
所述第一终端的用户识别号；所述第一终端在比特图中对应的位置。
本实施例中，目标参数为第一终端的用户识别号，则相应的条件信息为协作UE的用户识别号；目标参数为第一终端在比特图中对应的位置，则相应的条件信息为用于指示协作UE或请求反馈协作信息的比特图。
在一实施例中，还包括：
步骤112：根据第二终端发送的第一SCI确定所述第二终端的运动方向。
本实施例中，第二终端为第一终端的一个目标终端，第一终端根据第二终端发送的第一SCI可确定第二终端的运动方向，进而可确定第一终端的运动方向与第二终端的运动方向之间的夹角和/或该夹角对90或π/2取余的结果，如果这些目标参数与条件信息的限制一致，则第一终端向第二终端发送协作信息。
在一实施例中，还包括：
步骤114：根据第二终端发送的第一SCI确定所述第二终端的道路方向。
本实施例中，第二终端为第一终端的一个目标终端，第一终端根据第二终端发送的第一SCI可确定第二终端所在的道路方向，进而可确定第一终端所在的道路方向与第二终端所在的道路方向之间的夹角和/或该夹角对90或π/2取余的结果，如果这些目标参数与条件信息的限制一致，则第一终端向第二终端发送协作信息。
在一实施例中，还包括：
步骤116：根据第二终端发送的第一SCI中的区域标识(Zone ID)，以及所述第一终端的区域标识，确定所述第一终端与第二终端之间的距离。
本实施例中，第二终端为第一终端的一个目标终端，第一终端根据第二终端发送的第一SCI可确定第二终端所在的区域标识，进而可根据第一终端的区域标识与第二终端所在的区域标识确定第一终端与第二终端之间的距离。
在一实施例中，步骤120，包括：
在协作UE的数目小于协作UE的数目门限值的情况下，发送协作信息。
本实施例中，如果目标终端中协作UE的数目已经达到数目门限值，则第一终端不发送协作信息；如果协作UE的数目小于数目门限值，则第一终端可作为协作UE发送协作信息。
在一实施例中，步骤120，包括：
在所述第一终端的用户识别号属于所述协作UE的用户识别号的情况下发送协作信息。
在一实施例中，步骤120，包括：
在所述第一终端在比特图中对应位置的比特指示为设定值的情况下，发送协作信息。
例如，第一终端在比特图中对应位置的比特指示为1，则第一终端可作为协作UE发送协作信息；指示为0，则第一终端不发送协作信息。
在一实施例中，还包括：
步骤100：发送第二SCI，所述第二SCI用于指示所述第一终端支持作为协作终端。
本实施例中，第一终端发送第二SCI以通知其他UE第一终端可以成为协作终端。例如，在第二SCI中包含协作UE声明，表示第一终端具备推荐资源的能力，或者允许其他UE向其请求反馈协作信息。
在一实施例中，还包括：
步骤102：发送第二SCI，所述第二SCI用于指示所述第一终端作为协作终端的时效。
本实施例中，第一终端可通过发送第二SCI通知其他UE，第一终端愿意或可以成为协作UE，并且指示第一终端作为协作终端的时效。
在一实施例中，还包括：
步骤130：检测第三SCI。
步骤140：根据所述第三SCI的检测结果，发送所述协作信息，或者取消发送所述协作信息。
本实施例中，第一终端作为候选协作终端，为发送第二定位参考信号选择时频资源。
第一终端检测非第一终端(包括目标终端和/或第二终端)发送的第三定位参考信号，在检测结果满足第二限制条件的情况下，第一终端作为协作UE发送第二定位参考信号；否则第一终端不是协作UE，取消发送第二定位参考信号。
在一实施例中，协作信息包括第二比特图；所述第二比特图中的每个比特用于指示一个时隙上的一个子信道为推荐资源或非推荐资源。
本实施例中，协作信息通过第二比特图推荐资源，第二比特图中的每个比特与时隙上的子信道之间具有固定映射关系。
以下通过具体实施例对协作信息发送过程进行说明。
本实施例中，第一终端比较目标参数和条件信息，判断是否可以向目标终端(为第二终端)或其他终端发送协作信息，以推荐资源集合。
图2为一实施例提供的一种协作信息发送过程的示意图。如图2所示，主要包括步骤1-步骤5。
步骤1：第一终端获取条件信息。条件信息包以下信息至少之一：
目标终端为第一终端指示的道路方向；目标终端为第一终端指示的道路方向的范围；目标终端为第一终端指示的道路标识；目标终端为第一终端指示的运动方向；目标终端为第一终端指示的运动方向的范围；第一终端运动方向与目标终端运动方向夹角的门限值；第一终端运动方向与目标终端运动方向夹角的取值范围；第一终端运动方向与目标终端运动方向夹角对90或者对π/2取余的门限值；第一终端运动方向与目标终端运动方向夹角对90或者对π/2取余的取值范围；第一终端所在道路方向与目标终端所在道路方向夹角的门限值；第一终端所在道路方向与目标终端所在道路方向夹角的取值范围；第一终端所在道路方向与目标终端所在道路方向夹角对90或者对π/2取余的门限值；第一终端所在道路方向与目标终端所在道路方向夹角对90或者对π/2取余的取值范围；第一终端与目标终端的距离门限值；第一终端与目标终端的距离取值范围；RSRP的门限值；RSRP的取值范围；协作UE的数目门限值。
第一终端获取条件信息包括如下三种方式：
方式1)：第二终端向第一终端发送第一SCI以指示条件信息。第一终端通过接收第二终端的第一SCI获取条件信息。
方式2：基站通过无线资源控制(Radio Resource Control，RRC)信令为第一终端配置条件信息。第一终端通过接收RRC信令获取条件信息。或者，第一终端预先存储接收到的RRC信令中配置的条件信息，存储的条件信息通过第一终端的高层RRC预配置信令，向第一终端的物理层进行通知。或者也可以通过出厂预配置的方式存储在第一终端中，存储的条件信息通过第一终端的高层RRC预配置信令，向第一终端的物理层进行通知。
方式3：第二终端通过第一SCI向第一终端发送协作信息的请求信息，请求信息包括：协作UE的用户识别号(例如为源标识，Source ID)，或者用于指示协作UE或请求协作信息的第一比特图。其中，第一比特图中的每个比特和UE集合内的UE编号具有固定的映射关系，例如，第一比特图中从低往高数的第i个比特，用于指示一个UE集合内编号为i的UE是否需要向第二终端反馈协作信息，比特值为1的比特所对应的UE为协作UE，第二终端触发这些协作UE反馈协作信息。第一终端可以根据自身的源ID是否属于协作UE的用户识别号，或者根据自身的编号在第一比特图中相应位置的比特值，确定是否需要向第二终端反馈协作信息。
对于方式3，第二终端在通过第一SCI请求第一UE反馈协作信息之前，首先要选择一个或多个协作UE。第二终端可以基于运动方向选择协作UE，例如，选择与第二终端的运动方向的夹角小于运动方向角度门限值的UE作为协作UE。第二终端还可以基于距离、协作UE数目、道路方向夹角等因素选择协作UE。
步骤2：第一终端获取目标参数，包括如下两种方式。
方式a：第一终端接收目标终端(可以包含第二终端)的SCI以获取目标参数，和/或第一终端通过自身的传感器设备获取目标参数，目标参数包括以下至少之一：
第一终端所在的道路方向；第一终端所在的道路标识；第一终端的运动方向；第一终端的运动方向和目标终端的运动方向的夹角；第一终端的运动方向和目标终端的运动方向的夹角值对90取余数；第一终端的运动方向和目标终端的运动方向的夹角值对π/2取余数；第一终端的道路方向和目标终端的道路方向的夹角；第一终端的道路方向和目标终端的道路方向的夹角值对90取余数；第一终端的道路方向和目标终端的道路方向的夹角值对π/2取余数；第一终端与目标终端之间的距离；第一终端接收目标终端的参考信号的RSRP。
例如，第一终端根据目标终端的SCI所指示的目标终端的运动方向，以及第一终端自身的运动方向，计算第一终端运动方向和目标终端的运动方向的夹角。
例如，第一终端获取目标终端通过SCI中的比特所指示的目标终端的区域标识，并基于第一终端自身的区域标识和目标终端的区域标识确定第一终端和目标终端之间的距离。区域标识用于表示一个长方形的区域，第一终端计算自身的区域标识对应的长方形区域的中心位置坐标，并计算目标终端区域标识对应长方形区域的中心位置坐标，进而基于两个中心位置坐标计算第一终端和目标终端之间的距离。
方式b：目标参数包括以下至少之一：第一终端的用户识别号，第一终端在Bitmap中对应的比特位置。
这种情况下，第二终端通过特定的SCI格式(Format)向第一终端发送请求信息。例如，第二终端通过第一SCI中的比特，向第一终端指示一个或多个协作UE的用户识别号，或者，第二终端通过第一SCI中的比特，向第一终端指示第一以比特图，第一以比特图中的每个比特和UE集合内的UE编号具有固定的映射关系。第一终端可以根据自身的源ID是否属于协作UE的用户识别号，或者根据自身的编号在第一以比特图中相应位置的比特值，确定是否需要向第二终端反馈协作信息。
步骤3：第一终端比较条件信息和目标参数，判断是否发送协作信息。
例如，条件信息包括运动方向夹角的门限值和距离门限值，门限值的类型可以为上限值、下限值和/或等级划分值等。运动方向夹角的门限值为15度，距离门限值为300米。目标参数包括：第一终端的运动方向和目标终端的运动方向的夹角对90取余后的值mod(π/2,90)alpha以及第一终端与目标终端之间的距离。第一终端获取条件信息和目标参数后，基于条件信息和目标参数的比较，判断是否发送协作信息。例如，如果找不到同时满足下述条件的目标UE，则第一终端可以作为协作UE向第二终端发送协作信息：
第一终端和目标终端之间的夹角对90取余后的值小于角度(夹角)的门限值15度；第一终端和目标终端之间的距离小于距离门限值300米；目标终端为发送协作信息的协作UE。
例如，目标参数为第一终端所在的道路方向，限制条件为目标终端为第一终端指示的道路方向。若第一终端所在的道路方向与目标终端为第一终端指示的道路方向相同，则第一终端判断满足限制条件，第一终端发送协作信息。
例如，目标参数为第一终端所在的道路方向，限制条件为目标终端为第一终端指示的道路方向的范围。若第一终端所在的道路方向，不超过目标终端为第一终端指示的道路方向的范围，则第一终端判断满足限制条件，第一终端发送协作信息。
步骤4：如果目标参数满足条件信息的限制，则第一终端可以作为第二终端的协作UE，向第二终端发送协作信息，指示向第二终端推荐的资源集合，或指示不建议第二终端使用的资源集合。
步骤5：第二终端接收第一终端发送的协作信息，获取第一终端推荐使用的资源集合或不建议使用的资源集合，据此灵活选择用于信令或信息传输的资源，或选择同时用于信令和信息传输的资源。
示例一(第一终端将接收目标终端的参考信号的RSRP以及协作UE数目与条件信息比较确定是否发送协作信息)
如图2所示，发送协作信息的过程主要包括：
步骤1：获取条件信息，条件信息包括：
第一终端接收目标终端的参考信号的RSRP的门限值，例如为-100dBm；协作UE的数目门限值。
第一终端通过接收基站的RRC信令或者预配置信令获取条件信息。通过预配置信令获取条件信息，可以为：通过出厂预配置的方式获取条件信息，或者， 第一终端预先存储来自基站的RRC信令配置的条件信息。
步骤2：第一终端通过接收目标终端的SCI，获取目标参数，目标参数包括：
第一终端接收目标终端的参考信号的RSRP。
其中，第一终端接收目标终端的参考信号的RSRP，通过对目标终端的SCI译码成功的目标终端的物理边链路控制信道(Physical Sidelink Control Channel，PSCCH)解调参考信号(Demodulation Reference Signal，DMRS)或物理边链路共享信道(Physical Sidelink Shared Channel，PSSCH)DMRS进行测量得到。
步骤3：对于每个目标终端(目标终端为支持发送协作信息的协作UE)，第一终端比较目标参数和条件信息，判断是否发送协作信息。
如果满足下述条件的协作UE的数目小于数目门限值(例如为3)，则第一终端可作为协作UE发送协作信息：第一终端接收目标终端的参考信号的RSRP小于-100dBm。
图3为一实施例提供的一种确定协作UE数目的示意图。如图3所示，第一终端接收目标终端的SCI，找到SCI接收成功且第一终端接收目标终端的参考信号的RSRP不超过-100dBm这两个条件的目标终端，包括UE1～UE6。
例如，第一终端通过接收UE1～UE6的SCI，发现UE1和UE2对应的SCI格式为SCI format2-C，SCI format 2-C被用于携带协作信息的PSSCH的译码；UE3～UE6对应的SCI format为SCI format 2-A，SCI format 2-A被用于携带常规数据信息的PSSCH的译码。也就是说，在UE1～UE6中，第一终端通过SCI译码，发现发送协作信息的协作UE包括UE1和UE2，发送非协作信息的UE为UE3～UE6。这种情况下，SCI译码成功且RSRP小于-100dBm的协作UE的数目为2，小于协作UE数目门限3，因此第一终端可作为协作UE，向目标终端(目标终端为第二终端)或其他终端发送协作信息。
步骤4：第一终端作为协作UE，向第二终端发送协作信息。
第一终端发送的协作信息可以为第二比特图，第二比特图中的每个比特用于指示一个时隙上的一个子信道(Sub-Channel)是否为推荐使用的资源(也称为推荐资源)或者可用资源。第二比特图中的比特和资源位置具有对应关系。
图4为一实施例提供的一种时频资源编号的示意图。如图4所示，第一终端在时隙n发送32比特的Bitmap，并指示一个资源选择的时间窗[n+k,n+k+7]。第一终端指示资源选择的时间窗[n+k,n+k+7]的方式为：在时隙n指示偏移值(offset)为k，指示的时间窗的长度为8。对时间窗[n+k,n+k+7]内的各个时隙上的各个子信道进行编号，编号方式为按照先频域后时域的顺序，按照升序方式对各个时隙的子信道进行编号。各个时隙的各个子信道的编号如图4所示。
第二比特图中的比特和资源位置的对应关系为：第二比特图中从低往高数的第i个比特，用于指示第i个资源是否为推荐使用的资源或者可用资源。第i个比特指示为1，表示第一终端指示第i个资源为推荐资源或可用资源。第一终端判断第i个资源指示为1的过程包括：第一终端基于接收到的目标终端的SCI以及对目标终端的参考信号的RSRP的测量结果，确定一个资源集合。对于该资源集合中的资源，第一终端通过Bitmap指示该资源对应的比特值为1。
如图4所示，资源选择的时间窗为[n+k,n+k+7]，一个子信道对应一个时频资源，时间窗[n+k,n+k+7]内包括32个资源。第一终端在该时间窗内的32个资源中，排除被目标终端的SCI指示为占用且对该目标终端的RSRP高于RSRP门限值的资源，剩余资源为第一终端确定的推荐资源或可用资源的资源集合，记为setA1。第一终端在第二比特图中指示setA1中的推荐资源或可用资源的比特值为1。RSRP门限值可通过基站的RRC信令配置，或通过第一终端的预配置信令进行配置，配置或预配置的RSRP门限值与业务优先级无关。其中，被排除的资源也可以构成不推荐或不可使用的资源集合setA0，第一终端在第二比特图中指示setA0中的不推荐或不可用的资源的比特值为0。
步骤5：第二终端接收第一终端的协作信息，根据协作信息中的第二比特图确定推荐资源或可用资源。第二终端基于第一终端指示的第二比特图，选择资源集合setA2，setA2中的资源，包含连续N个子信道，第一终端通过第二比特图指示这N个资源为推荐资源或可用资源(即这N个资源对应的比特值均为1)。此外，第二终端也可以基于第一终端指示的第二比特图确定setA0从而确定不推荐或不可用的资源。连续子信道的数目N可通过基站的RRC信令配置获取，或者通过预配置获取。
图5为一实施例提供的一种资源集合的示意图。如图5所示，例如N＝2，setA2包括用椭圆圈出的4个资源组成，每个资源包含连续N＝2个在第二比特图中的对应位置比特值为1的子信道。
第二终端除了通过接收第一终端的第二比特图获取setA2外，还可通过接收非第二终端的SCI以及测量非第二终端的RSRP(对PSCCH DMRS或PSSCH DMRS测量)，获取一个资源集合setA3，第二终端获取setA3的方式为，第二终端在设定时间窗内，排除被其它非第二终端的SCI指示为占用或RSRP高于RSRP门限值的资源，剩余资源作为资源集合setA3。
第二终端对setA3和setA2取交集，然后从交集中随机选择资源，用于第二终端的信令或数据的传输。如果setA3和setA2取交集包含的资源不够用，则第二终端忽略setA2，从setA3中随机选择资源，用于第二终端的信令或数据的传输。
示例二(第一终端将与目标终端的距离、运动方向的夹角、以及协作UE数目与条件信息比较，确定是否发送协作信息)
参见图2，发送协作信息的过程主要包括：
步骤1：获取条件信息，条件信息包括：
第一终端的运动方向与目标终端的运动方向的夹角对π/2取余的门限值，例如为π/12弧度；第一终端与目标终端的距离，例如为300米。
第一终端通过接收基站的RRC信令或者预配置信令获取条件信息。通过预配置信令获取条件信息，可以为：通过出厂预配置的方式获取条件信息，或者，第一终端预先存储来自基站的RRC信令配置的条件信息。
步骤2：第一终端通过接收目标终端的SCI，获取目标参数，目标参数包括：
第一终端的运动方向与目标终端的运动方向的夹角α对π/2取余；第一终端与目标终端的距离。
第一终端根据目标终端的SCI所指示的目标终端的运动方向，以及第一终端自身的运动方向，计算第一终端的运动方向和目标终端的运动方向的夹角α，获取α对90或对π/2取余的值。
目标终端的SCI中包含3比特的信息用于指示目标终端的运动方向，例如：
比特000，用于指示运动方向为正北方向。
比特001，用于指示运动方向为北偏南45度方向。
比特010，用于指示运动方向为正西方向。
比特011，用于指示运动方向为西偏南45度方向。
比特100，用于指示运动方向为正南方向。
比特101，用于指示运动方向为东偏南45度方向。
比特110，用于指示运动方向为正东方向。
比特111，用于指示运动方向为北偏东45度方向。
此外，第一终端获取目标终端通过SCI所指示的目标终端的区域标识，并基于第一终端自身的区域标识和目标终端的区域标识确定第一终端和目标终端之间的距离。可以根据自身的区域标识对应的长方形区域的中心位置坐标以及目标终端的区域标识对应长方形区域的中心位置坐标，计算第一终端和目标终端之间的距离。
步骤3：对于每个目标终端(目标终端为支持发送协作信息的协作UE)， 第一终端比较目标参数和条件信息，判断是否发送协作信息。
如果满足下述条件的协作UE的数目小于数目门限值，则第一终端可作为协作UE发送协作信息：
第一终端的运动方向与目标终端的运动方向的夹角α对π/2取余小于π/12弧度；第一终端与目标终端的距离小于300米。
数目门限值例如为1，即，第一终端通过比较条件信息和目标参数，如果找不到满足上述条件的协作UE(协作UE数目为0)，则第一终端可作为协作UE发送协作信息；如果存在至少一个满足上述条件的协作UE，则第一终端不是协作UE，不发送协作信息。
图6为另一实施例提供的一种确定协作UE数目的示意图。如图6所示，第一终端接收目标终端的SCI，找到SCI接收成功且第一终端与目标终端的距离小于300米这两个条件的目标终端，包括UE1～UE6；根据第一终端的运动方向与目标终端的运动方向的夹角对π/2取余小于π/12弧度，筛选出UE1～UE4。
例如，第一终端通过接收UE1～UE6的SCI，发现UE1和UE2对应的SCI格式为SCI format2-C，SCI format 2-C被用于携带协作信息的PSSCH的译码；UE3～UE6对应的SCI format为SCI format 2-A，SCI format 2-A被用于携带常规数据信息的PSSCH的译码。也就是说，在UE1～UE6中，第一终端通过SCI译码，发现发送协作信息的协作UE包括UE1和UE2，发送非协作信息的UE为UE3～UE6。这种情况下，SCI译码成功且满足上述条件的协作UE的数目为2，小于协作UE数目门限值3，因此第一终端作为协作UE，向目标终端(目标终端为第二终端)或其他终端发送协作信息。
步骤4：第一终端作为协作UE，向第二终端发送协作信息。
第一终端发送的协作信息可以为第二比特图，第二比特图中的每个比特用于指示一个时隙上的一个子信道(Sub-Channel)是否为推荐使用的资源(也称为推荐资源)或者可用资源。第二比特图中的比特和资源位置具有对应关系。对应关系为：第二比特图中从低往高数的第i个比特，用于指示第i个资源是否为推荐使用的资源或者可用资源。第i个比特指示为1，表示第一终端指示第i个资源为推荐资源或可用资源。第一终端判断第i个资源指示为1的过程包括：第一终端基于接收到的目标终端的SCI以及对目标终端的参考信号的RSRP的测量结果，确定一个资源集合。对于该资源集合中的资源，第一终端通过第二比特图指示该资源对应的比特值为1。
RSRP门限值可通过基站的RRC信令配置，或通过第一终端的预配置信令进行配置，配置或预配置的RSRP门限值与业务优先级无关。
步骤5：第二终端接收第一终端的协作信息，根据协作信息中的第二比特图确定推荐资源或可用资源。第二终端基于第一终端指示的第二比特图，确定资源集合setA2，setA2中的资源，包含连续N个子信道，第一终端通过第二比特图指示这N个资源为推荐资源或可用资源(即这N个资源对应的比特值均为1)。连续子信道的数目N可通过基站的RRC信令配置获取，或者通过预配置获取。
第二终端除了通过接收第一终端的第二比特图获取setA2外，还可通过接收非第二终端的SCI以及测量非第二终端的RSRP(对PSCCH DMRS或PSSCH DMRS测量)，获取一个资源集合setA3，第二终端获取setA3的方式为，第二终端在设定时间窗内，排除被其它非第二终端的SCI指示为占用、且RSRP高于RSRP门限值的资源，剩余资源作为资源集合setA3。
第二终端对setA2和setA3取交集，然后从交集中随机选择资源，用于第二终端的信令和数据的传输。如果setA2和setA3取交集包含的资源不够用，则第二终端忽略setA2，从setA3中随机选择资源，用于第二终端的信令和数据的传输。
示例三(对于组播Groupcast，第二终端选择协作UE，并向第一终端发送第一SCI，第一SCI包括请求信息，请求信息中包括用户识别号)
本示例中，第一终端发送协作UE声明，用于指示第一终端可以或愿意成为协作UE。第二终端接收一个或多个终端的协作UE声明信息后，第二终端从这些终端中选择一个或多个终端作为第一终端，第二终端选择第一终端后，第二终端向第一终端发送请求信息。请求信息，用于请求第一终端发送协作信息。第一终端接收第二终端的请求信息，判断是否发送协作信息。如果判断为发送协作信息，则第一终端发送协作信息。
图7为另一实施例提供的一种协作信息发送过程的示意图。如图7所示，发送协作信息的过程主要包括：
步骤1：第一终端发送协作UE声明，用于指示第一终端可以或愿意成为协作UE。
协作UE声明通过第二SCI中的比特指示，第二SCI通过PSCCH或PSSCH传输。第一终端还可以通过第二SCI声明其作为协作UE的时效。例如，在t1时刻，第一终端通知其作为协作UE的时间长度L，即，第一终端可以或愿意成为协作UE的开始时间为t1，结束时间为t1+L-1。在时间段[t1,t1+L-1]之间，第一终端都可作为协作UE，为其它终端传输协作信息。
步骤2：第二终端接收到一个或多个UE的协作UE声明后，从这些UE中选择一个或多个UE作为协作UE，本示例中，第二终端所选择的协作UE包括 第一终端。
第二终端通过接收一个或多个UE的协作UE声明，将满足以下条件的全部或部分UE确定为协作UE：
第二终端与该UE的距离不超过距离门限值；第二终端的运动方向与该UE的SCI所指示的该UE的运动方向之间的夹角对π/2取余，不超过运动方向的夹角对π/2取余的门限值；该UE的SCI指示该UE可以或愿意成为协作UE；第二终端与该UE属于同一组。
步骤3：第二终端向所选择的协作UE发送请求信息，用于请求协作UE反馈协作信息。
第二终端可通过特定的SCI格式发送请求信息。例如，第二终端发送第一SCI，第一SCI中的比特指示所选择的协作UE的用户识别号。或者，第二终端发送第一SCI，第一SCI中的比特指示第一比特图，第一比特图中的比特位置与第二终端所在组中的协作UE有固定的映射关系。即，第一比特图中的每个比特用于指示第二终端所在组中的一个UE是否被选为协作UE。如果第一比特图中的一位的比特值为1，则表示该位对应的UE为协作UE；如果第一比特图中的一个比特的值为0，则表示该位对应的UE不发送协作信息。
此外，第二终端还可以通过第一SCI向目标终端指示发送协作信息的时间窗。
此外，第二终端还可以通过第一SCI向目标终端指示目的地标识(Destination ID)，目的地标识为组标识，用于区分不同的UE组。
步骤4：第一终端接收第二终端发送的请求信息，判断是否发送协作信息。
如果第一终端判断第二终端的第一SCI是发给自己的，则第一终端可作为协作UE向第二终端发送协作信息。如果第一终端的源ID与第一SCI中所指示的协作UE的用户识别号中的一个相同，则第一终端作为协作UE向第二终端发送协作信息。这种情况下，目标参数包括第一终端的源ID，条件信息包括协作UE的用户识别号。
或者，第一终端根据第一比特图中的比特位置与第二终端所在组中的协作UE有固定的映射关系，确定是否发送协作信息。如果对应位置的比特值指示为1，则第一终端作为协作UE向第二终端发送协作信息。这种情况下，目标参数包括第一终端的在Bitmap中对应的位置，条件信息包括Bitmap中对应位置的比特值。
步骤5：第一终端发送协作信息。协作信息的发送，落入第二终端在第一SCI中通知的发送协作信息的时间窗内。其中协作信息包括至少一个资源集合， 可以为推荐资源或可用资源构成的资源集合，也可以为不建议使用的资源构成的资源集合。
例如，第一终端确定推荐的资源集合的方法为：第一终端通过监听非第一终端的SCI确定非第一终端指示的占用资源，通过对非第一终端的PSCCH DMRS或PSSCH DRMS进行测量，得到相应的RSRP。第一终端排除资源选择的时间窗内被其它非第一终端指示为占用或被指示占用的资源相应的RSRP大于RSRP门限值的资源，剩余资源标记为setA1，setA1为第一终端推荐的资源的集合。
本示例中，第二终端接收第一终端发送的协作信息，基于协作信息选择资源，第二终端基于第一终端指示的第二比特图，确定资源集合setA2。此外，第二终端通过监听其它非第二终端的SCI，获取非第二终端指示的占用资源。第二终端通过对非第二终端的PSCCH DMRS或PSSCH DRMS进行测量，获取第二终端和非第二终端之间的RSRP。第二终端排除资源选择的时间窗内被其它非第二终端指示为占用或被指示占用的资源的RSRP大于门限值的资源，剩余资源标记为setA3。第二终端对setA3和setA2取交集，然后从交集中随机选择资源，用于信令或数据的传输。如果setA2和setA3取交集包含的资源不够用，则第二终端可以忽略setA2，从setA3中随机选择资源。
示例四(对于广播Broadcast，第二终端选择协作UE，并向第一终端发送第一SCI，第一SCI包括请求信息，请求信息中包括用户识别号)
本示例中，第一终端发送协作UE声明，用于指示第一终端可以或愿意成为协作UE。第二终端接收一个或多个终端的协作UE信息后，第二终端从这些终端中选择一个或多个终端作为第一终端，第二终端选择第一终端后，第二终端向第一终端发送请求信息。请求信息，用于请求第一终端发送协作信息。第一终端接收第二终端的请求信息，判断是否发送协作信息。如果判断为发送协作信息，则第一终端发送协作信息。
参考图7所示，发送协作信息的过程主要包括：
步骤1：第一终端发送协作UE声明，用于指示第一终端可以或愿意成为协作UE。
协作UE声明通过第二SCI中的比特指示，第二SCI通过PSCCH或PSSCH传输。第一终端还可以通过第二SCI声明其作为协作UE的时效。例如，在t1时刻，第一终端通知其作为协作UE的时间长度L，即，第一终端可以或愿意成为协作UE的开始时间为t1，结束时间为t1+L-1。在时间段[t1,t1+L-1]之间，第一终端都可作为协作UE，为其它终端传输协作信息。
步骤2：第二终端接收到一个或多个UE的协作UE声明后，从这些UE中选择一个或多个UE作为协作UE，本示例中，第二终端所选择的协作UE包括第一终端。
第二终端通过接收一个或多个UE的协作UE声明，将满足以下条件的全部或部分UE确定为协作UE：
第二终端与该UE的距离不超过距离门限值；第二终端的运动方向与该UE的SCI所指示的该UE的运动方向之间的夹角对π/2取余，不超过运动方向夹角对π/2取余的门限值；该UE的SCI指示该UE可以或愿意成为协作UE。
步骤3：第二终端向所选择的协作UE发送请求信息，用于请求协作UE反馈协作信息。
第二终端可通过特定的SCI格式发送请求信息。例如，第二终端发送第一SCI，第一SCI中的比特指示所选择的协作UE的用户识别号。
此外，第二终端还可以通过第一SCI向目标终端指示发送协作信息的时间窗。
此外，第二终端还可以通过第一SCI向目标终端指示目的地标识，目的地标识为组标识，用于区分不同的UE组。
步骤4：第一终端接收第二终端发送的请求信息，判断是否发送协作信息。
如果第一终端判断第二终端的第一SCI是发给自己的，则第一终端可作为协作UE向第二终端发送协作信息。如果第一终端的源ID与第一SCI中所指示的协作UE的用户识别号中的一个相同，则第一终端作为协作UE向第二终端发送协作信息。这种情况下，目标参数包括第一终端的源ID，条件信息包括协作UE的用户识别号。
步骤5：第一终端发送协作信息。协作信息的发送，落入第二终端在第一SCI中通知的发送协作信息的时间窗内。其中协作信息包括至少一个资源集合，可以为推荐资源或可用资源构成的资源集合，也可以为不建议使用的资源构成的资源集合。
例如，第一终端确定推荐的资源集合的方法为：第一终端通过监听其它非第一终端的SCI确定非第一终端指示的占用资源，通过对非第一终端的PSCCH DMRS或PSSCH DRMS进行测量，得到相应的RSRP。第一终端排除资源选择的时间窗内被非第一终端指示为占用或被指示占用的资源相应的RSRP大于RSRP门限值的资源，剩余资源标记为setA1，setA1为第一终端推荐的资源的集合。
本示例中，第二终端接收第一终端发送的协作信息，基于协作信息选择资源，第二终端基于第一终端指示的第二比特图，确定资源集合setA2。此外，第二终端通过监听其它非第二终端的SCI，获取非第二终端指示的占用资源。第二终端通过对非第二终端的PSCCH DMRS或PSSCH DRMS进行测量，获取第二终端和非第二终端之间的RSRP。第二终端排除资源选择的时间窗内被非第二终端指示为占用或被指示占用的资源的RSRP大于门限值的资源，剩余资源标记为setA3。第二终端对setA2和setA3取交集，然后从交集中随机选择资源，用于信令和数据的传输。如果setA2和setA3取交集包含的资源不够用，则第二终端可以忽略setA2，从setA3中随机选择资源。
示例五(第二终端指示条件信息，第一终端在目标参数满足条件信息的限制的情况下，作为协作UE为目标终端发送协作信息)
图8为又一实施例提供的一种协作信息发送过程的示意图。如图8所示，发送协作信息的过程主要包括：
步骤1：第二终端通过第一SCI向第一指示条件信息，条件信息包括：
第一终端的运动方向与目标终端的运动方向的夹角对π/2取余的门限值，例如为π/12弧度；第一终端与目标终端的距离门限值，例如为300米。
步骤2：第一终端根据目标终端的SCI获取目标参数，目标参数包括：
第一终端的运动方向与目标终端的运动方向的夹角α对π/2取余；第一终端与目标终端之间的距离。
第一终端基于目标终端的SCI所指示的目标终端的运动方向，以及第一终端自身的运动方向，计算第一终端的运动方向和目标终端的运动方向的夹角，并对π/2取余。
第一终端获取目标终端通过SCI中的比特所指示的目标终端的区域标识，并基于第一终端自身的区域标识和目标终端的区域标识确定第一终端和目标终端之间的距离。区域标识用于表示一个长方形的区域，第一终端计算自身的区域标识对应的长方形区域的中心位置坐标，并计算目标终端区域标识对应长方形区域的中心位置坐标，进而基于两个中心位置坐标计算第一终端和目标终端之间的距离。
步骤3：对于每个目标终端(目标终端为支持发送协作信息的协作UE)，第一终端比较目标参数和条件信息，判断是否发送协作信息。
如果满足下述条件的协作UE的数目小于数目门限值，则第一终端可作为协作UE发送协作信息：
第一终端的运动方向与目标终端的运动方向的夹角α对π/2取余小于π/12弧度；第一终端与目标终端的距离小于300米；目标终端为可发送协作信息的协作UE。
步骤4：如果目标参数满足条件信息的限制，则第一终端可以作为协作UE，向第三终端发送协作信息，指示向第三终端推荐的资源集合，或指示不建议第三终端使用的资源集合。
例如，协作信息对应的资源集合为第一终端推荐的资源集合。第一终端获取该推荐的资源集合的方法为：第一终端通过监听非第一终端的SCI，获取非第一终端指示的占用资源。第一终端通过对非第一终端的PSCCH DMRS或PSSCH DRMS进行测量，获取第一终端接收非第一终端的参考信号的RSRP。第一终端排除资源选择窗内被非第一终端指示为占用，且RSRP大于门限的资源。剩余资源标记为setA1，setA1为第一终端推荐的资源的集合。
步骤5：第三终端可以与第二终端是同一终端，也可以是不同的终端。第三终端接收第一终端发送的协作信息，第三终端基于该协作信息选择资源，第三终端基于第一终端指示的第二比特图，确定资源集合setA2。此外，第三终端通过监听其它非第三终端的SCI，获取非第三终端指示的占用资源。第三终端通过对非第三终端的PSCCH DMRS或PSSCH DRMS进行测量，获取第三终端接收非第三终端的参考信号的RSRP。第三终端排除资源选择窗内被非第三终端指示为占用、且相应的RSRP大于门限的资源，剩余资源标记为setA3。第三终端把setA2和setA3取交集，然后从交集中随机选择资源，用于第三终端的信令和数据的传输。如果setA2和setA3取交集包含的资源不够用，则第三终端忽略setA2，从setA3中随机选择资源，用于第三终端的信令和数据的传输。
示例六(满足限制条件的协作UE小于门限，则第一终端判决为协作UE)
本示例中，第二终端向第一终端发送条件信息，第一终端获取目标参数。第一终端比较条件信息和目标参数判断是否发送协作信息。通过条件信息和目标参数的比较，如果第一终端找到的满足下述条件的协作UE的数目小于协作UE的数目门限值，则第一终端作为协作UE发送协作信息：
第一终端的运动方向和该UE的运动方向之间的夹角对π/2取余，小于运动方向夹角对π/2取余的门限值；第一终端和该UE之间的距离小于距离门限值，例如为300米；该UE为协作UE。
参见图8，发送协作信息的过程主要包括：
步骤1：第二终端通过第一SCI指示条件信息，条件信息包括：
第一终端的运动方向与目标终端的运动方向的夹角对π/2取余的门限值，例 如为π/12弧度；第一终端与目标终端的距离门限值，例如为300米；协作UE数目的门限值，例如为3。
步骤2：第一终端根据目标终端的SCI获取目标参数，目标参数包括：
第一终端的运动方向与目标终端的运动方向的夹角α对π/2取余；第一终端与目标终端之间的距离。
第一终端基于目标终端的SCI所指示的目标终端的运动方向，以及第一终端自身的运动方向，计算第一终端的运动方向和目标终端的运动方向的夹角，并对π/2取余。
第一终端获取目标终端通过SCI中的比特所指示的目标终端的区域标识，并基于第一终端自身的区域标识和目标终端的区域标识确定第一终端和目标终端之间的距离。区域标识用于表示一个长方形的区域，第一终端计算自身的区域标识对应的长方形区域的中心位置坐标，并计算目标终端区域标识对应长方形区域的中心位置坐标，进而基于两个中心位置坐标计算第一终端和目标终端之间的距离。
步骤3：对于每个目标终端(目标终端为支持发送协作信息的协作UE)，第一终端比较目标参数和条件信息，判断是否发送协作信息。
如果满足下述条件的协作UE的数目小于数目门限值，则第一终端可作为协作UE发送协作信息：
第一终端的运动方向与目标终端的运动方向的夹角α对π/2取余小于π/12弧度；第一终端与目标终端的距离小于300米；目标终端为可发送协作信息的协作UE。
步骤4：如果满足上述条件的协作UE的数目小于数目门限值，则第一终端可以作为协作UE，向第三终端发送协作信息，指示向第三终端推荐的资源集合，或指示不建议第三终端使用的资源集合。
例如，协作信息对应的资源集合为第一终端推荐的资源集合。第一终端获取该推荐的资源集合的方法为：第一终端通过监听非第一终端的SCI，获取非第一终端指示的占用资源。第一终端通过对非第一终端的PSCCH DMRS或PSSCH DRMS进行测量，获取第一终端接收非第一终端的参考信号的RSRP。第一终端排除资源选择窗内被非第一终端指示为占用，且RSRP大于门限的资源。剩余资源标记为setA1，setA1为第一终端推荐的资源的集合。
步骤5：第三终端可以与第二终端是同一终端，也可以是不同的终端。第三终端接收第一终端发送的协作信息，第三终端基于该协作信息选择资源，第三终端基于第一终端指示的第二比特图，确定资源集合setA2。此外，第三终端通 过监听非第三终端的SCI，获取非第三终端指示的占用资源。第三终端通过对非第三终端的PSCCH DMRS或PSSCH DRMS进行测量，获取第三终端接收非第三终端的参考信号的RSRP。第三终端排除资源选择窗内被非第三终端指示为占用、且相应的RSRP大于门限的资源，剩余资源标记为setA3。第三终端把setA2和setA3取交集，然后从交集中随机选择资源，用于第三终端的信令和数据的传输。如果setA2和setA3取交集包含的资源不够用，则第三终端忽略setA2，从setA3中随机选择资源，用于第三终端的信令和数据的传输。
示例七(第二终端指示条件信息，第一终端在目标参数满足条件信息的限制的情况下，在协作信息传输前判断是否取消协作信息的传输)
本示例中，第二终端向第一终端发送条件信息，第一终端获取目标参数。第一终端比较条件信息和目标参数判断是否发送协作信息，包括：
第一终端通过比较条件信息和目标参数，判断是否发送协作信息；第一终端选择目标时频资源，所述目标时频资源用于协作信息的传输；第一终端在协作信息传输之前，检测其它非第一终端发送的第三SCI，基于检测结果判断是否取消协作信息的传输。
如果第一终端不取消协作信息的传输，则第一终端向第三终端发送协作信息，第三终端接收协作信息，并基于协作信息确定用于信令或信息传输的资源。
图9为再一实施例提供的一种协作信息发送过程的示意图。如图9所示，发送协作信息的过程主要包括：
步骤1：第一终端判断是否发送协作信息。
判断过程包括：
步骤1-1：第二终端通过第一SCI指示条件信息，条件信息包括：
第一终端的运动方向与目标终端的运动方向的夹角对π/2取余的门限值，例如为π/12弧度；第一终端与目标终端的距离门限值，例如为300米；协作UE数目的门限值，例如为3。
步骤1-2：第一终端根据目标终端的SCI获取目标参数，目标参数包括：
第一终端的运动方向与目标终端的运动方向的夹角α对π/2取余；第一终端与目标终端之间的距离。
第一终端基于目标终端的SCI所指示的目标终端的运动方向，以及第一终端自身的运动方向，计算第一终端的运动方向和目标终端的运动方向的夹角，并对π/2取余。
第一终端获取目标终端通过SCI中的比特所指示的目标终端的区域标识， 并基于第一终端自身的区域标识和目标终端的区域标识确定第一终端和目标终端之间的距离。区域标识用于表示一个长方形的区域，第一终端计算自身的区域标识对应的长方形区域的中心位置坐标，并计算目标终端区域标识对应长方形区域的中心位置坐标，进而基于两个中心位置坐标计算第一终端和目标终端之间的距离。
步骤1-3：对于每个目标终端(目标终端为支持发送协作信息的协作UE)，第一终端比较目标参数和条件信息，判断是否发送协作信息。
如果满足下述条件的协作UE的数目小于数目门限值，则第一终端可作为协作UE发送协作信息：
第一终端的运动方向与目标终端的运动方向的夹角α对π/2取余小于π/12弧度；第一终端与目标终端的距离小于300米；目标终端为可发送协作信息的协作UE。
步骤2：第一终端判断发送协作信息后，选择目标时频资源，目标时频资源用于协作信息的传输。
图10为一实施例提供的一种选择目标时频资源的示意图。如图10所示，UE1作为第一终端，在t1时刻为协作信息的传输选择的目标时频资源为资源1；UE2作为第一终端，在t2时刻为协作信息的传输选择的目标时频资源为资源2。
步骤3：第一终端在协作信息的实际传输之前，检测非第一终端发送的第三SCI，基于检测结果判断是否取消协作信息的传输。例如数目门限值为1，即，第一终端检测到任意一个UE发送的第三SCI满足条件信息的限制，则不发送协作信息。
如果第一终端在实际发送协作信息之前，检测到来自其它非第一终端的第三SCI满足如下条件，则第一终端取消协作信息的发送：
第三SCI用于通知该UE自身发送的协作信息的时频资源；第一终端的运动方向和该UE的运动方向之间的夹角对π/2取余后的值，小于运动方向夹角的门限值，例如为π/12弧度；第一终端和该UE之间的距离，小于距离门限值300米。
以图10为例，第一终端为UE2，UE2检测不到满足上述三个条件的来自其它UE的第三SCI，因此UE2不取消协作信息的传输；第一终端为UE1，UE1检测到来自UE2的第三SCI，满足上面的三个限制条件。因此，UE1取消协作信息的传输。
步骤4：第一终端没有检测到满足条件信息限制的第三SCI，则通过选择的目标时频资源发送协作信息，向第三终端指示向第三终端推荐的资源集合，或 指示不建议第三终端使用的资源集合。
例如，协作信息对应的资源集合为第一终端推荐的资源集合。第一终端获取该推荐的资源集合的方法为：第一终端通过监听非第一终端的SCI，获取非第一终端指示的占用资源。第一终端通过对非第一终端的PSCCH DMRS或PSSCH DRMS进行测量，获取第一终端接收非第一终端的参考信号的RSRP。第一终端排除资源选择窗内被非第一终端指示为占用，且RSRP大于门限的资源。剩余资源标记为setA1，setA1为第一终端推荐的资源的集合。
步骤5：第一终端检测到满足条件信息限制的第三SCI，取消协作信息的发送。
本示例中，第三终端可以与第二终端是同一终端，也可以是不同的终端。第三终端接收第一终端发送的协作信息，第三终端基于该协作信息选择资源，第三终端基于第一终端指示的第二比特图，确定资源集合setA2。此外，第三终端通过监听非第三终端的SCI，获取非第三终端指示的占用资源。第三终端通过对非第三终端的PSCCH DMRS或PSSCH DRMS进行测量，获取第三终端接收非第三终端的参考信号的RSRP。第三终端排除资源选择窗内被非第三终端指示为占用、且相应的RSRP大于门限的资源，剩余资源标记为setA3。第三终端把setA2和setA3取交集，然后从交集中随机选择资源，用于第三终端的信令或数据的传输。如果setA2和setA3取交集包含的资源不够用，则第三终端忽略setA2，从setA3中随机选择资源，用于第三终端的信令或数据的传输。
上述示例中，目标参数和条件信息都是以运动方向的夹角取余与运动方向的夹角取余的门限值进行比较为例进行说明，也可以替换或增加以下的一种或多种情况：
目标终端为第一终端指示的道路方向与第一终端所在的道路方向进行比较；目标终端为第一终端指示的道路标识与第一终端所在的道路标识进行比较；目标终端为第一终端指示的道路方向的范围与第一终端所在的道路方向进行比较；目标终端为第一终端指示的运动方向与第一终端所在的运动方向进行比较；目标终端为第一终端指示的运动方向的范围与第一终端所在的运动方向进行比较；第一终端与目标终端的运动方向的夹角与运动方向夹角的门限值进行比较；第一终端与目标终端的道路方向的夹角与道路方向夹角的门限值进行比较；第一终端与目标终端的道路方向的夹角取余与道路方向夹角取余的门限值进行比较。
在本申请实施例中，还提供一种资源确定方法，可应用于第二终端，第二终端可以为采用组播方式或广播方式的发射终端，第二终端根据第一终端发送的协作信息，确定推荐使用或不建议使用的资源，从而减少不同资源冲突或干扰，提高边链路通信的可靠性。该方法也适用于发射终端采用单播通信方式的 场景。第二终端为第一终端的一个目标终端。未在本实施例中详尽描述的技术细节可参见上述任意实施例。
图13为一实施例提供的一种资源确定方法的流程图。如图13所示，本实施例提供的方法包括步骤210和步骤220。
在步骤210中，接收第一终端在目标参数满足条件信息的限制的情况下发送的协作信息，所述协作信息包括资源集合。
在步骤220中，根据所述协作信息确定资源。
在一实施例中，还包括：
步骤200：向所述第一终端发送第一SCI；所述第一SCI中包括以下至少之一：所述第二终端的运动方向；所述第二终端的道路方向；所述第二终端的区域标识。
在一实施例中，还包括：
步骤202：向所述第一终端发送第一SCI；所述第一SCI中包括请求信息，所述请求信息包括以下至少之一：
协作UE的用户识别号；第一比特图，所述第一比特图用于指示协作UE或者用于请求第一终端发送协作信息。
在一实施例中，还包括：
步骤204：向所述第一终端发送第一SCI；所述第一SCI中包括请求信息，所述请求信息包括协作UE的用户识别号，所述协作UE的用户识别号为协作UE的源ID。
在一实施例中，还包括：
步骤206：向所述第一终端发送第一SCI；所述第一SCI中包括以下至少之一：
第二终端为第一终端指示的道路方向；第二终端为第一终端指示的道路方向的范围；第二终端为第一终端指示的道路标识；第二终端为第一终端指示的运动方向；第二终端为第一终端指示的运动方向的范围；第一终端运动方向与目标终端运动方向夹角的门限值；第一终端运动方向与目标终端运动方向夹角的取值范围；第一终端运动方向与目标终端运动方向夹角对90或者对π/2取余的门限值；第一终端运动方向与目标终端运动方向夹角对90或者对π/2取余的取值范围；第一终端所在道路方向与目标终端所在道路方向夹角的门限值；第一终端所在道路方向与目标终端所在道路方向夹角的取值范围；第一终端所在道路方向与目标终端所在道路方向夹角对90或者对π/2取余的门限值；第一终 端所在道路方向与目标终端所在道路方向夹角对90或者对π/2取余的取值范围；第一终端与目标终端的距离门限值；第一终端与目标终端的距离取值范围；RSRP的门限值；RSRP的取值范围；协作UE的数目门限值。
在一实施例中，还包括：
步骤208：接收第二SCI，所述第二SCI用于指示所述第一终端支持作为协作终端。
在一实施例中，协作信息包括第二比特图；所述第二比特图中的每个比特用于指示一个时隙上的一个子信道为推荐资源或非推荐资源。
本申请实施例还提供一种协作信息发送装置。图11为一实施例提供的一种资源确定方法的流程图。如图11所示，所述协作信息发送装置包括：条件获取模块310和发送模块320。
条件获取模块310，设置为获取条件信息；发送模块320，设置为在目标参数满足所述条件信息的限制的情况下发送协作信息，所述协作信息包括资源集合。
本实施例的协作信息发送装置，针对采用组播方式或广播方式的发射终端，第一终端可以确定自身是否可以作为协作终端，如果可以作为协作终端，则发送协作信息，向发射终端推荐合适的资源集合，从而减少不同资源冲突或干扰，提高边链路通信的可靠性。该方法也适用于发射终端采用单播通信方式的场景。
在一实施例中，所述条件信息为预配置或预存储的信息，或通过RRC信令配置的信息，或者根据第二终端发送的第一SCI确定的信息。
在一实施例中，所述条件信息包括以下至少之一：
目标终端为第一终端指示的道路方向；目标终端为第一终端指示的道路方向的范围；目标终端为第一终端指示的道路标识；目标终端为第一终端指示的运动方向；目标终端为第一终端指示的运动方向的范围；第一终端运动方向与目标终端运动方向夹角的门限值；第一终端运动方向与目标终端运动方向夹角的取值范围；第一终端运动方向与目标终端运动方向夹角对90或者对π/2取余的门限值；第一终端运动方向与目标终端运动方向夹角对90或者对π/2取余的取值范围；第一终端所在道路方向与目标终端所在道路方向夹角的门限值；第一终端所在道路方向与目标终端所在道路方向夹角的取值范围；第一终端所在道路方向与目标终端所在道路方向夹角对90或者对π/2取余的门限值；第一终端所在道路方向与目标终端所在道路方向夹角对90或者对π/2取余的取值范围；第一终端与目标终端的距离门限值；第一终端与目标终端的距离取值范围；RSRP的门限值；RSRP的取值范围；协作UE的数目门限值。
在一实施例中，所述条件信息包括第二终端发送的第一SCI；所述第一SCI中包括请求信息，所述请求信息包括以下至少之一：
协作UE的用户识别号；第一比特图，所述第一比特图用于指示协作UE或者用于请求第一终端发送协作信息。
在一实施例中，所述条件信息包括第二终端发送的第一SCI；所述第一SCI中包括请求信息，所述请求信息包括协作UE的用户识别号，所述协作UE的用户识别号为协作UE的源ID。
在一实施例中，目标参数包括以下至少之一：
第一终端所在的道路方向；第一终端所在的道路标识；第一终端的运动方向；所述第一终端与目标终端之间的距离；所述第一终端接收的目标终端的参考信号的RSRP；所述第一终端的道路方向与目标终端的道路方向的夹角；所述第一终端的道路方向与目标终端的道路方向的夹角对90或者对π/2取余；所述第一终端的运动方向与目标终端的运动方向的夹角；所述第一终端的运动方向与目标终端的运动方向的夹角对90或者对π/2取余。
在一实施例中，目标参数包括以下至少之一：
所述第一终端的用户识别号；所述第一终端在比特图中对应的位置。
在一实施例中，还包括：
运动方向确定模块，设置为根据第二终端发送的第一SCI确定所述第二终端的运动方向。
在一实施例中，还包括：
道路方向确定模块，设置为根据第二终端发送的第一SCI确定所述第二终端的道路方向。
在一实施例中，还包括：
距离确定模块，设置为根据第二终端发送的第一SCI中的区域标识，以及所述第一终端的区域标识，确定所述第一终端与第二终端之间的距离。
在一实施例中，发送模块320，设置为：在协作UE的数目小于协作UE的数目门限值的情况下，发送协作信息。
在一实施例中，发送模块320，设置为：
在所述第一终端的用户识别号属于所述协作UE的用户识别号的情况下发送协作信息。
在一实施例中，发送模块320，设置为：在所述第一终端在比特图中对应位 置的比特指示为设定值的情况下，发送协作信息。
在一实施例中，还包括：
第一指示模块，设置为发送第二SCI，所述第二SCI用于指示所述第一终端支持作为协作终端。
在一实施例中，还包括：
第二指示模块，设置为发送第二SCI，所述第二SCI用于指示所述第一终端作为协作终端的时效。
在一实施例中，还包括：
检测模块，设置为检测第三SCI；取消模块，设置为根据所述第三SCI的检测结果，发送所述协作信息，或者取消发送所述协作信息。
在一实施例中，所述协作信息包括第二比特图；所述第二比特图中的每个比特用于指示一个时隙上的一个子信道为推荐资源或非推荐资源。
本实施例提出的协作信息发送装置与上述实施例提出的协作信息发送方法属于同一构思，未在本实施例中详尽描述的技术细节可参见上述任意实施例，并且本实施例具备与执行协作信息发送方法相同的效果。
本申请实施例还提供一种资源确定装置。图12为一实施例提供的一种协作信息发送装置的结构示意图。如图12所示，所述资源确定装置包括：信息接收模块410和资源确定的模块420。
信息接收模块410，设置为接收第一终端在目标参数满足条件信息的限制的情况下发送的协作信息，所述协作信息包括资源集合；资源确定模块420，设置为根据所述协作信息确定资源。
本实施例的资源确定装置，第二终端可以为采用组播方式或广播方式的发射终端，第二终端根据第一终端发送的协作信息，确定推荐使用或不建议使用的资源，从而减少不同资源冲突或干扰，提高边链路通信的可靠性。该方法也适用于发射终端采用单播通信方式的场景。
在一实施例中，还包括：
第一发送模块，设置为向所述第一终端发送第一SCI；所述第一SCI中包括以下至少之一：所述第二终端的运动方向；所述第二终端的道路方向；所述第二终端的区域标识。
在一实施例中，还包括：
第二发送模块，设置为向所述第一终端发送第一SCI；所述第一SCI中包括 请求信息，所述请求信息包括以下至少之一：
协作UE的用户识别号；第一比特图，所述第一比特图用于指示协作UE或者用于请求第一终端发送协作信息。
在一实施例中，还包括：
第三发送模块，设置为向所述第一终端发送第一SCI；所述第一SCI中包括请求信息，所述请求信息包括协作UE的用户识别号，所述协作UE的用户识别号为协作UE的源ID。
在一实施例中，还包括：
第四发送模块，设置为向所述第一终端发送第一SCI；所述第一SCI中包括以下至少之一：
第二终端为第一终端指示的道路方向；第二终端为第一终端指示的道路方向的范围；第二终端为第一终端指示的道路标识；第二终端为第一终端指示的运动方向；第二终端为第一终端指示的运动方向的范围；第一终端运动方向与目标终端运动方向夹角的门限值；第一终端运动方向与目标终端运动方向夹角的取值范围；第一终端运动方向与目标终端运动方向夹角对90或者对π/2取余的门限值；第一终端运动方向与目标终端运动方向夹角对90或者对π/2取余的取值范围；第一终端所在道路方向与目标终端所在道路方向夹角的门限值；第一终端所在道路方向与目标终端所在道路方向夹角的取值范围；第一终端所在道路方向与目标终端所在道路方向夹角对90或者对π/2取余的门限值；第一终端所在道路方向与目标终端所在道路方向夹角对90或者对π/2取余的取值范围；第一终端与目标终端的距离门限值；第一终端与目标终端的距离取值范围；RSRP的门限值；RSRP的取值范围；协作UE的数目门限值。
在一实施例中，还包括：
接收模块，设置为接收第二SCI，所述第二SCI用于指示所述第一终端支持作为协作终端。
在一实施例中，所述协作信息包括第二比特图；所述第二比特图中的每个比特用于指示一个时隙上的一个子信道为推荐资源或非推荐资源。
本实施例提出的资源确定装置与上述实施例提出的资源确定方法属于同一构思，未在本实施例中详尽描述的技术细节可参见上述任意实施例，并且本实施例具备与执行资源确定方法相同的效果。
本申请实施例还提供了一种通信节点，图14为一实施例提供的一种通信节 点的硬件结构示意图，如图14所示，本申请提供的通信节点，包括存储器52、处理器51以及存储在存储器上并可在处理器上运行的计算机程序，处理器51执行所述程序时实现上述的协作信息发送方法或资源确定方法。
通信节点还可以包括存储器52；该通信节点中的处理器51可以是一个或多个，图14中以一个处理器51为例；存储器52用于存储一个或多个程序；所述一个或多个程序被所述一个或多个处理器51执行，使得所述一个或多个处理器51实现如本申请实施例中所述的协作信息发送方法或资源确定方法。
通信节点还包括：通信装置53、输入装置54和输出装置55。
通信节点中的处理器51、存储器52、通信装置53、输入装置54和输出装置55可以通过总线或其他方式连接，图14中以通过总线连接为例。
输入装置54可用于接收输入的数字或字符信息，以及产生与通信节点的用户设置以及功能控制有关的按键信号输入。输出装置55可包括显示屏等显示设备。
通信装置53可以包括接收器和发送器。通信装置53设置为根据处理器51的控制进行信息收发通信。
存储器52作为一种计算机可读存储介质，可设置为存储软件程序、计算机可执行程序以及模块，如本申请实施例所述协作信息发送方法对应的程序指令/模块(例如，协作信息发送装置中的条件获取模块310和发送模块320)。存储器52可包括存储程序区和存储数据区，其中，存储程序区可存储操作系统、至少一个功能所需的应用程序；存储数据区可存储根据通信节点的使用所创建的数据等。此外，存储器52可以包括高速随机存取存储器，还可以包括非易失性存储器，例如至少一个磁盘存储器件、闪存器件、或其他非易失性固态存储器件。在一些实例中，存储器52可包括相对于处理器51远程设置的存储器，这些远程存储器可以通过网络连接至通信节点。上述网络的实例包括但不限于互联网、企业内部网、局域网、移动通信网及其组合。
本申请实施例还提供一种存储介质，所述存储介质存储有计算机程序，所述计算机程序被处理器执行时实现本申请实施例中任一所述的协作信息发送方法或资源确定方法。
该协作信息发送方法，包括：获取条件信息；在目标参数满足所述条件信息的限制的情况下发送协作信息，所述协作信息包括资源集合。
该资源确定方法，包括：接收第一终端在目标参数满足条件信息的限制的情况下发送的协作信息，所述协作信息包括资源集合；根据所述协作信息确定资源。
本申请实施例的计算机存储介质，可以采用一个或多个计算机可读的介质的任意组合。计算机可读介质可以是计算机可读信号介质或者计算机可读存储介质。计算机可读存储介质例如可以是，但不限于：电、磁、光、电磁、红外线、或半导体的系统、装置或器件，或者任意以上的组合。计算机可读存储介质的例子(非穷举的列表)包括：具有一个或多个导线的电连接、便携式计算机磁盘、硬盘、随机存取存储器(Random Access Memory，RAM)、只读存储器(Read Only Memory，ROM)、可擦式可编程只读存储器(Erasable Programmable Read Only Memory，EPROM)、闪存、光纤、便携式CD-ROM、光存储器件、磁存储器件、或者上述的任意合适的组合。计算机可读存储介质可以是任何包含或存储程序的有形介质，该程序可以被指令执行系统、装置或者器件使用或者与其结合使用。
计算机可读的信号介质可以包括在基带中或者作为载波一部分传播的数据信号，其中承载了计算机可读的程序代码。这种传播的数据信号可以采用多种形式，包括但不限于：电磁信号、光信号或上述的任意合适的组合。计算机可读的信号介质还可以是计算机可读存储介质以外的任何计算机可读介质，该计算机可读介质可以发送、传播或者传输用于由指令执行系统、装置或者器件使用或者与其结合使用的程序。
计算机可读介质上包含的程序代码可以用任何适当的介质传输，包括但不限于：无线、电线、光缆、无线电频率(Radio Frequency，RF)等等，或者上述的任意合适的组合。
可以以一种或多种程序设计语言或其组合来编写用于执行本申请操作的计算机程序代码，所述程序设计语言包括面向对象的程序设计语言，诸如Java、Smalltalk、C++，还包括常规的过程式程序设计语言，诸如“C”语言或类似的程序设计语言。程序代码可以完全地在用户计算机上执行、部分地在用户计算机上执行、作为一个独立的软件包执行、部分在用户计算机上部分在远程计算机上执行、或者完全在远程计算机或服务器上执行。在涉及远程计算机的情形中，远程计算机可以通过任意种类的网络，包括局域网(Local Area Network，LAN)或广域网(Wide Area Network，WAN)，连接到用户计算机，或者，可以连接到外部计算机(例如利用因特网服务提供商来通过因特网连接)。
以上所述，仅为本申请的示例性实施例而已。
本领域内的技术人员应明白，术语用户终端涵盖任何适合类型的无线用户设备，例如移动电话、便携数据处理装置、便携网络浏览器或车载移动台。
一般来说，本申请的多种实施例可以在硬件或专用电路、软件、逻辑或其任何组合中实现。例如，一些方面可以被实现在硬件中，而其它方面可以被实现在可以被控制器、微处理器或其它计算装置执行的固件或软件中，尽管本申请不限于此。
本申请的实施例可以通过移动装置的数据处理器执行计算机程序指令来实现，例如在处理器实体中，或者通过硬件，或者通过软件和硬件的组合。计算机程序指令可以是汇编指令、指令集架构(Instruction Set Architecture，ISA)指令、机器指令、机器相关指令、微代码、固件指令、状态设置数据、或者以一种或多种编程语言的任意组合编写的源代码或目标代码。
本申请附图中的任何逻辑流程的框图可以表示程序步骤，或者可以表示相互连接的逻辑电路、模块和功能，或者可以表示程序步骤与逻辑电路、模块和功能的组合。计算机程序可以存储在存储器上。存储器可以具有任何适合于本地技术环境的类型并且可以使用任何适合的数据存储技术实现，例如但不限于只读存储器(Read-Only Memory，ROM)、随机访问存储器(Random Access Memory，RAM)、光存储器装置和系统(数码多功能光碟(Digital Video Disc，DVD)或光盘(Compact Disk，CD)等。计算机可读介质可以包括非瞬时性存储介质。数据处理器可以是任何适合于本地技术环境的类型，例如但不限于通用计算机、专用计算机、微处理器、数字信号处理器(Digital Signal Processing，DSP)、专用集成电路(Application Specific Integrated Circuit，ASIC)、可编程逻辑器件(Field-Programmable Gate Array，FPGA)以及基于多核处理器架构的处理器。

Claims (26)

  1. 一种协作信息发送方法，应用于第一终端，包括：
    获取条件信息；
    在目标参数满足所述条件信息的限制的情况下发送协作信息，所述协作信息包括资源集合。
  2. 根据权利要求1所述的方法，其中，所述条件信息为预配置或预存储的信息，或通过无线资源控制RRC信令配置的信息，或者根据第二终端发送的第一边链路控制信息SCI确定的信息。
  3. 根据权利要求1所述的方法，其中，所述条件信息包括以下至少之一：
    目标终端为所述第一终端指示的道路方向；目标终端为所述第一终端指示的道路方向的范围；目标终端为所述第一终端指示的道路标识；
    目标终端为所述第一终端指示的运动方向；目标终端为所述第一终端指示的运动方向的范围；
    所述第一终端运动方向与目标终端运动方向夹角的门限值；所述第一终端运动方向与目标终端运动方向夹角的取值范围；
    所述第一终端运动方向与目标终端运动方向夹角对90或者对π/2取余的门限值；所述第一终端运动方向与目标终端运动方向夹角对90或者对π/2取余的取值范围；
    所述第一终端所在道路方向与目标终端所在道路方向夹角的门限值；所述第一终端所在道路方向与目标终端所在道路方向夹角的取值范围；
    所述第一终端所在道路方向与目标终端所在道路方向夹角对90或者对π/2取余的门限值；所述第一终端所在道路方向与目标终端所在道路方向夹角对90或者对π/2取余的取值范围；
    所述第一终端与目标终端的距离门限值；所述第一终端与目标终端的距离取值范围；
    参考信号接收功率RSRP的门限值；RSRP的取值范围；
    协作用户设备UE的数目门限值。
  4. 根据权利要求1所述的方法，其中，所述条件信息包括第二终端发送的第一SCI；
    所述第一SCI中包括请求信息，所述请求信息包括以下至少之一：
    协作UE的用户识别号；
    第一比特图，所述第一比特图用于指示协作UE或者用于请求第一终端发送协作信息。
  5. 根据权利要求1所述的方法，其中，所述条件信息包括第二终端发送的第一SCI；
    所述第一SCI中包括请求信息，所述请求信息包括协作UE的用户识别号，所述协作UE的用户识别号为协作UE的源标识ID。
  6. 根据权利要求1所述的方法，其中，所述目标参数包括以下至少之一：
    所述第一终端所在的道路方向；所述第一终端所在的道路标识；
    所述第一终端的运动方向；
    所述第一终端与目标终端之间的距离；
    所述第一终端接收的目标终端的参考信号的RSRP；
    所述第一终端的道路方向与目标终端的道路方向的夹角；
    所述第一终端的道路方向与目标终端的道路方向的夹角对90或者对π/2取余；
    所述第一终端的运动方向与目标终端的运动方向的夹角；
    所述第一终端的运动方向与目标终端的运动方向的夹角对90或者对π/2取余。
  7. 根据权利要求1所述的方法，其中，所述目标参数包括以下至少之一：
    所述第一终端的用户识别号；
    所述第一终端在比特图中对应的位置。
  8. 根据权利要求1所述的方法，还包括：
    根据第二终端发送的第一SCI确定所述第二终端的运动方向。
  9. 根据权利要求1所述的方法，还包括：
    根据第二终端发送的第一SCI确定所述第二终端的道路方向。
  10. 根据权利要求1所述的方法，还包括：
    根据第二终端发送的第一SCI中的区域标识，以及所述第一终端的区域标识，确定所述第一终端与第二终端之间的距离。
  11. 根据权利要求1所述的方法，其中，所述在目标参数满足所述条件信息的限制的情况下发送协作信息，包括：
    在协作UE的数目小于协作UE的数目门限值的情况下，发送所述协作信息。
  12. 根据权利要求1所述的方法，其中，所述在目标参数满足所述条件信息的限制的情况下发送协作信息，包括：
    在所述第一终端的用户识别号属于所述协作UE的用户识别号的情况下发送所述协作信息。
  13. 根据权利要求1所述的方法，其中，所述在目标参数满足所述条件信息的限制的情况下发送协作信息，包括：
    在所述第一终端在比特图中对应位置的比特指示为设定值的情况下，发送所述协作信息。
  14. 根据权利要求1所述的方法，还包括：
    发送第二SCI，所述第二SCI用于指示所述第一终端支持作为协作终端。
  15. 根据权利要求1所述的方法，还包括：
    发送第二SCI，所述第二SCI用于指示所述第一终端作为协作终端的时效。
  16. 根据权利要求1所述的方法，还包括：
    检测第三SCI；
    根据所述第三SCI的检测结果，发送所述协作信息，或者取消发送所述协作信息。
  17. 根据权利要求1所述的方法，其中，所述协作信息包括第二比特图；
    所述第二比特图中的每个比特用于指示一个时隙上的一个子信道为推荐资源或非推荐资源。
  18. 一种资源确定方法，应用于第二终端，包括：
    接收第一终端在目标参数满足条件信息的限制的情况下发送的协作信息，所述协作信息包括资源集合；
    根据所述协作信息确定资源。
  19. 根据权利要求18所述的方法，还包括：向所述第一终端发送第一边链路控制信息SCI；
    所述第一SCI中包括以下至少之一：所述第二终端的运动方向；所述第二终端的道路方向；所述第二终端的区域标识。
  20. 根据权利要求18所述的方法，还包括：向所述第一终端发送第一SCI；
    所述第一SCI中包括请求信息，所述请求信息包括以下至少之一：
    协作用户设备UE的用户识别号；
    第一比特图，所述第一比特图用于指示协作UE或者用于请求第一终端发送协作信息。
  21. 根据权利要求18所述的方法，还包括：向所述第一终端发送第一SCI；
    所述第一SCI中包括请求信息，所述请求信息包括协作UE的用户识别号，所述协作UE的用户识别号为协作UE的源标识ID。
  22. 根据权利要求18所述的方法，还包括：向所述第一终端发送第一SCI；
    所述第一SCI中包括以下至少之一：
    所述第二终端为所述第一终端指示的道路方向；所述第二终端为所述第一终端指示的道路方向的范围；所述第二终端为所述第一终端指示的道路标识；
    所述第二终端为所述第一终端指示的运动方向；所述第二终端为所述第一终端指示运动方向的范围；
    所述第一终端运动方向与目标终端运动方向夹角的门限值；所述第一终端运动方向与目标终端运动方向夹角的取值范围；
    所述第一终端运动方向与目标终端运动方向夹角对90或者对π/2取余的门限值；所述第一终端运动方向与目标终端运动方向夹角对90或者对π/2取余的取值范围；
    所述第一终端所在道路方向与目标终端所在道路方向夹角的门限值；所述第一终端所在道路方向与目标终端所在道路方向夹角的取值范围；
    所述第一终端所在道路方向与目标终端所在道路方向夹角对90或者对π/2取余的门限值；所述第一终端所在道路方向与目标终端所在道路方向夹角对90或者对π/2取余的取值范围；
    所述第一终端与目标终端的距离门限值；所述第一终端与目标终端的距离取值范围；
    参考信号接收功率RSRP的门限值；RSRP的取值范围；
    协作UE的数目门限值。
  23. 根据权利要求18所述的方法，还包括：
    接收第二SCI，所述第二SCI用于指示所述第一终端支持作为协作终端。
  24. 根据权利要求18所述的方法，其中，所述协作信息包括第二比特图；
    所述第二比特图中的每个比特用于指示一个时隙上的一个子信道为推荐资 源或非推荐资源。
  25. 一种通信节点，包括存储器、处理器以及存储在所述存储器上并可所述在处理器上运行的计算机程序，其中，所述处理器执行所述程序时实现如权利要求1-17中任一项所述的协作信息发送方法或如权利要求18-24中任一项所述的资源确定方法。
  26. 一种计算机可读存储介质，存储有计算机程序，其中，所述程序被处理器执行时实现如权利要求1-17中任一项所述的协作信息发送方法或如权利要求18-24中任一项所述的资源确定方法。
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