WO2017005174A1 - Procédé d'allocation de ressources de dispositif à dispositif (d2d) et station de base - Google Patents

Procédé d'allocation de ressources de dispositif à dispositif (d2d) et station de base Download PDF

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Publication number
WO2017005174A1
WO2017005174A1 PCT/CN2016/088668 CN2016088668W WO2017005174A1 WO 2017005174 A1 WO2017005174 A1 WO 2017005174A1 CN 2016088668 W CN2016088668 W CN 2016088668W WO 2017005174 A1 WO2017005174 A1 WO 2017005174A1
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WIPO (PCT)
Prior art keywords
terminal
base station
resource allocation
information
coverage area
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PCT/CN2016/088668
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English (en)
Chinese (zh)
Inventor
唐纪晔
赵丽
林琳
冯媛
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China Academy of Telecommunications Technology CATT
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China Academy of Telecommunications Technology CATT
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • 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

Definitions

  • the present invention relates to the field of wireless communication technologies, and in particular, to a device to device (D2D, also translated into D2D terminal through) resource allocation method and a base station.
  • D2D device to device
  • a base station Evolved Node B, eNode B
  • a core network In order to improve the transmission efficiency between D2D terminals, a technology for direct communication between D2D terminals, that is, D2D technology, has been proposed.
  • D2D technology When the distance between the D2D terminals is very close, the D2D communication mode can be used to implement the interaction. At this time, the D2D terminals do not need to perform the interaction of voice and data through the base station.
  • the D2D communication in which the cellular network participates refers to the D2D communication controlled by the cellular network in the frequency band authorized by the cellular network.
  • the D2D communication refers to the long-term evolution (Long).
  • LTE Long Term Evolution
  • LTE licensed band
  • D2D communication controlled by the LTE network Compared with the traditional D2D communication, the D2D communication of the cellular network has higher security and better quality of service (QoS) guarantee; on the other hand, the control of D2D communication by the LTE network can also be overcome.
  • QoS quality of service
  • the D2D communication is introduced into the cellular network, and the D2D communication will share the time-frequency resources with the cellular communication, and the cellular network needs to allocate the appropriate D2D resources for the D2D communication according to the usage of the cellular resources.
  • a base station in a cellular network allocates D2D resources to a D2D terminal participating in D2D communication, first selects an idle time-frequency resource. When there is no idle time-frequency resource, for a used time-frequency resource, a three-hop distance is selected. The time-frequency resources are multiplexed.
  • FIG. 1 it is a schematic diagram of a time-frequency resource conflict according to an embodiment of the present invention.
  • the distance between the base station A and the base station B is greater than the three-hop distance.
  • the base station A has an in-vehicle D2D terminal in the coverage area: the in-vehicle D2D terminal A, and the in-vehicle D2D terminal in the coverage area of the base station B: the in-vehicle D2D terminal B.
  • the time-frequency resource allocated by the base station A for the in-vehicle D2D terminal A in the coverage area is the same as the time-frequency resource allocated by the base station B for the in-vehicle D2D terminal B in the coverage area thereof, and the in-vehicle D2D terminal B resides under the base station B, and the vehicle
  • the D2D terminal A moves to the coverage area of the base station B, and when the in-vehicle D2D terminal A moves into the coverage area of the base station B, the vehicle A resource collision occurs between the D2D terminal A and the in-vehicle D2D terminal B, causing the two in-vehicle D2D terminals to interfere with each other.
  • the embodiment of the invention provides a D2D resource allocation method and a base station, which are used to reduce the probability of resource collision of D2D resources.
  • An embodiment of the present invention provides a D2D resource allocation method, including:
  • the base station is, according to the location information of the D2D terminal sent by the neighboring base station, the D2D resource allocation information of the D2D terminal, the location information of the D2D terminal in the coverage area of the base station, and the D2D resource allocation information of the D2D terminal, The D2D terminal in the coverage area allocates D2D resources.
  • the method further includes:
  • the base station sends the location information of the D2D terminal in the coverage area of the base station and the D2D resource allocation information of the D2D terminal to the neighboring base station of the base station.
  • the base station sends the location information of the D2D terminal in the coverage area of the base station and the D2D resource allocation information of the D2D terminal to the neighboring base station of the base station, including:
  • the base station When determining, by the base station, that the D2D terminal in the coverage area of the base station meets one of the following conditions, the base station sends location information of the D2D terminal in the coverage area of the base station, and D2D resource allocation of the D2D terminal to the neighboring base station.
  • the moving distance of the D2D terminal exceeds a threshold
  • the D2D resource allocation information used by the D2D terminal changes
  • the D2D terminal leaves the coverage area of the base station
  • the D2D terminal enters a coverage area of the base station.
  • the base station uses the location information of the D2D terminal in the coverage area of the base station and the neighboring base station coverage area boundary of the base station is smaller than the minimum spatial reusable distance of the D2D resource, and the D2D resource allocation information of the D2D terminal. Send to the neighbor base station.
  • the base station after the base station allocates D2D resources to the D2D terminal in the coverage area of the base station, the base station further includes:
  • the base station receives the D2D link collision feedback information sent by the D2D terminal, and the D2D link collision feedback information is sent to the base station after the D2D terminal detects that the D2D link has a resource collision;
  • the base station re-allocates D2D resources for the D2D terminal that sends the D2D link collision feedback information according to the D2D link collision feedback information.
  • the base station after receiving the location information of the D2D terminal and the D2D resource allocation information of the D2D terminal sent by the neighboring base station of the base station, the base station further includes:
  • the D2D resource used by the D2D terminal corresponding to the information and the resource allocation information collides with the resource
  • the D2D terminal corresponding to the location information and the resource allocation information sent by the neighboring base station in the coverage of the base station collides with the resource.
  • the D2D terminal reassigns D2D resources.
  • the base station receives location information and D2D resource allocation information of the D2D terminal sent by the neighboring base station by using an X2 interface with the neighboring base station.
  • the location information of the D2D terminal includes one or any combination of the following parameters:
  • the D2D resource allocation information of the D2D terminal includes one or any combination of the following parameters:
  • the allocation period of the D2D resources used by the D2D terminal is the allocation period of the D2D resources used by the D2D terminal.
  • the D2D terminal is an in-vehicle D2D terminal.
  • An embodiment of the present invention provides a base station, including:
  • a first transceiver unit configured to receive location information of a device to a device D2D terminal sent by a neighboring base station of the base station, and D2D resource allocation information of the D2D terminal;
  • the D2D resource allocation unit is configured to: according to the location information of the D2D terminal sent by the neighboring base station, the D2D resource allocation information of the D2D terminal, the location information of the D2D terminal in the coverage area of the base station, and the D2D resource allocation information of the D2D terminal.
  • the D2D terminal in the coverage area of the base station allocates D2D resources.
  • the first transceiver unit is further configured to:
  • the first transceiver unit is specifically configured to:
  • the location information of the D2D terminal in the coverage area of the base station and the D2D resource allocation information of the D2D terminal are sent to the neighboring base station:
  • the moving distance of the D2D terminal exceeds a threshold
  • the D2D resource allocation information used by the D2D terminal changes
  • the D2D terminal leaves the coverage area of the base station
  • the D2D terminal enters a coverage area of the base station.
  • the first transceiver unit is specifically configured to:
  • the second transceiver unit is further configured to:
  • the D2D resource allocation unit is specifically configured to:
  • the D2D resource allocation unit is further configured to:
  • the D2D terminal that has a resource collision with the D2D terminal corresponding to the location information and the resource allocation information transmitted by the neighboring base station in the coverage of the base station is re-established. Assign D2D resources.
  • the base station receives location information and D2D resource allocation information of the D2D terminal sent by the neighboring base station by using an X2 interface with the neighboring base station.
  • the location information of the D2D terminal includes one or any combination of the following parameters:
  • the D2D resource allocation information of the D2D terminal includes one or any combination of the following parameters:
  • the allocation period of the D2D resources used by the D2D terminal is the allocation period of the D2D resources used by the D2D terminal.
  • the D2D terminal is an in-vehicle D2D terminal.
  • An embodiment of the present invention provides another base station, including: a processor, a memory, and a transceiver;
  • the transceiver is configured to receive location information of a device to a device D2D terminal sent by a neighboring base station of the base station, and D2D resource allocation information of the D2D terminal;
  • the processor is configured to read a program in the memory, and perform the following processes: performing location information of a D2D terminal, D2D resource allocation information of a D2D terminal, and D2D in a coverage area of the base station according to the neighboring base station.
  • the location information of the terminal and the D2D resource allocation information of the D2D terminal allocate D2D resources to the D2D terminal in the coverage area of the base station.
  • the base station after receiving the location information of the D2D terminal and the D2D resource allocation information of the D2D terminal, the base station allocates D2D resources for the D2D terminal in the coverage area of the base station.
  • the base station can perform D2D resource allocation according to the location information of the D2D terminal, the D2D resource allocation information of the D2D terminal, the location information of the D2D terminal in the coverage area of the base station, and the D2D resource allocation information of the D2D terminal.
  • the D2D resources are allocated more reasonably, the probability of resource collision of the allocated D2D resources is reduced, and the switching of the D2D resources is reduced, so that the D2D resource allocation is completed reasonably and efficiently.
  • FIG. 1 is a schematic diagram of a time-frequency resource conflict in the prior art
  • FIG. 2 is a schematic diagram of a D2D communication architecture involved in a cellular network according to an embodiment of the present invention
  • FIG. 3 is a flowchart of a D2D resource allocation method according to an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of a first D2D resource information area according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of a second D2D resource information area according to an embodiment of the present invention.
  • FIG. 6 is a structural diagram of a base station according to an embodiment of the present invention.
  • FIG. 7 is a structural diagram of another base station according to an embodiment of the present invention.
  • the base station centrally manages the D2D resources of the D2D terminals in the coverage area, and the base stations can access the D2D resources used by the D2D terminals in the coverage areas of the respective base stations through the X2 interface, and the base station can obtain a larger range.
  • the D2D resource allocation information enables better allocation of D2D resources.
  • the D2D terminal in the embodiment of the present invention refers to a device capable of supporting cellular network communication and D2D communication, and may be an in-vehicle D2D terminal having the above functions, a mobile phone, or the like.
  • FIG. 2 is a schematic diagram of a D2D communication architecture involved in a cellular network according to an embodiment of the present invention.
  • Figure 2 includes two types of links:
  • D2N link a link that communicates between a D2D terminal and a base station of a cellular network
  • - D2D link A link that directly communicates between a D2D terminal and a D2D terminal.
  • the D2N link is a conventional wireless communication link in a cellular network
  • the D2D terminal is first established with the cellular network. After this link, the cellular network can allocate D2D resources to the D2D terminal through the D2N link.
  • a base station when a base station schedules D2D resources, control signaling of the D2D resources is transmitted by the cellular network.
  • the D2D resource used by the D2D terminal in the D2D communication does not have a matching relationship with the cellular network, and its coverage and characteristics are also different. If the base station can only obtain the D2D resource allocation information used by the D2D terminal in its coverage area, the base station The probability that the D2D resource allocated by the D2D terminal in the coverage area collides with the D2D resource used by the D2D terminal of the other base station coverage area increases.
  • the D2D resource allocated by the base station A to the D2D terminal A in its coverage area is the same as the D2D resource allocated by the base station B to the D2D terminal B in its coverage area, and the D2D terminal B resides in the coverage of the base station B.
  • the edge location in the area moves and the D2D terminal A moves into the neighboring cell of the coverage area of the base station B, the D2D communication between the D2D terminal A and the D2D terminal B interferes with each other.
  • the base station can avoid the above situation according to the D2D resource allocated by the D2D terminal in the coverage area according to the location information of the D2D terminal and the D2D resource allocation information of the D2D terminal sent by the neighboring base station of the base station. occur.
  • a flowchart of a D2D resource allocation method includes:
  • Step 301 The base station receives location information of the D2D terminal sent by the neighboring base station of the base station, and D2D resource allocation information of the D2D terminal.
  • the base station may receive location information and D2D resource allocation information of the D2D terminal sent by the neighboring base station by using an X2 interface with the neighboring base station.
  • the X2 interface is a logical interface between two base stations and is an open interface that supports direct transmission of data and signaling between two base stations.
  • the base stations are connected to each other through an X2 interface to form a mesh network.
  • Step 302 The base station is configured according to the location information of the D2D terminal, the D2D resource allocation information of the D2D terminal, the location information of the D2D terminal in the coverage area of the base station, and the D2D resource allocation information of the D2D terminal.
  • the D2D terminal in the coverage area of the base station allocates D2D resources.
  • the location information of the D2D terminal interacting between the base stations may include one or any combination of the following parameters:
  • the D2D resource allocation information of the D2D terminal interacting between the base stations may include one or any combination of the following parameters:
  • the allocation period of the D2D resources used by the D2D terminal is the allocation period of the D2D resources used by the D2D terminal.
  • the information exchanged between the base stations includes the location information of the D2D terminal and the D2D resource allocation information of the D2D terminal, and the identifier of the D2D terminal corresponding to the location information of the D2D terminal and the D2D resource allocation information of the D2D terminal.
  • the base station may also send location information of the D2D terminal and D2D resource allocation information of the D2D terminal in the coverage area of the base station to the neighboring base station of the base station.
  • the base station determines that the D2D terminal in the coverage area of the base station meets one of the following conditions, the base station sends the base station to the neighboring base station.
  • Location information of the D2D terminal in the coverage area and D2D resource allocation information of the D2D terminal :
  • Condition 1 The moving distance of the D2D terminal exceeds the threshold
  • the location information may be sent without transmitting the D2D resource allocation information, and the transmitted location information may include the following parameters: latitude and longitude information of the D2D terminal, moving speed of the D2D terminal, and D2D terminal One or more of moving acceleration, moving direction of the D2D terminal, and elevation of the D2D terminal.
  • Condition 2 D2D resource allocation information used by the D2D terminal changes
  • the terminal that changes the D2D resource allocation information may only transmit the D2D resource allocation information without transmitting the location information, and the D2D resource allocation information that is sent may include only the D2D resource used by the D2D terminal.
  • Condition 3 The coverage area of the D2D terminal leaving the base station
  • the location information and the D2D resource allocation information may not be transmitted, but only the identifier of the D2D terminal may be sent out.
  • Condition 4 The D2D terminal enters the coverage area of the base station
  • the location information and the D2D resource allocation information may be transmitted for the D2D terminal entering the coverage area of the base station.
  • the location information of the transmitted D2D terminal includes the following parameters: one or more of latitude and longitude information of the D2D terminal, a moving speed of the D2D terminal, a moving acceleration of the D2D terminal, a moving direction of the D2D terminal, and an elevation of the D2D terminal;
  • the D2D resource allocation information of the transmitted D2D terminal may include one or more of the following parameters: a D2D resource used by the D2D terminal, and an allocation period of the D2D resource used by the D2D terminal.
  • the vehicle terminal of the domain allocates time-frequency resources reasonably, and the base station needs to obtain D2D resource information of the D2D terminal within a certain range outside the coverage area, and information such as location information of the D2D terminal, and this area is referred to as a “D2D resource information area”.
  • the base station exchanges information about the location information of the D2D terminal and the D2D resource allocation information of the D2D terminal and the vehicle to the outside (Vehicle to X, V2X) communication.
  • the D2D terminal is an in-vehicle D2D terminal
  • the base station needs to obtain D2D resource information used by the in-vehicle D2D terminal in the D2D resource information area, and information such as location information and heading information of the in-vehicle D2D terminal.
  • V2X is the key technology for future intelligent transportation systems. It enables communication between the in-vehicle D2D terminal and the in-vehicle D2D terminal, the in-vehicle D2D terminal and the base station, and the base station and the base station. Thereby obtaining a series of traffic information such as real-time road conditions, road information, pedestrian information, etc., thereby improving driving safety, reducing congestion, improving traffic efficiency, and providing in-vehicle entertainment information.
  • traffic information such as real-time road conditions, road information, pedestrian information, etc.
  • the D2D resource information area of the base station refers to all areas outside the coverage area of the base station and the distance from the coverage area boundary of the base station is less than the minimum spatial reusable distance of the D2D resource.
  • the D2D resource information area of the base station may further include an area outside the coverage area of the base station, and a distance from a coverage area boundary of the base station is greater than a minimum spatial reusable distance of the D2D resource.
  • FIG. 4 a schematic diagram of a first type of D2D resource information area provided by an embodiment of the present invention.
  • only one cell is included in the coverage area of each base station in the cellular network, and the diameter of each cell is the minimum spatial reusable distance of the D2D resource.
  • the coverage area of the intermediate base station has a total of six adjacent cells, and the six adjacent cells constitute a D2D resource information area of the base station.
  • FIG. 5 a schematic diagram of a second D2D resource information area provided by an embodiment of the present invention is shown.
  • the coverage area of each base station in the cellular network includes 7 cells, and the diameter of each cell is the minimum spatial reusable distance of the D2D resource.
  • the coverage area of the intermediate base station has 12 adjacent cells, and the 12 adjacent cells constitute a D2D resource information area of the base station.
  • the D2D terminal can multiplex D2D resources outside the three-hop distance, so the distance from the boundary of the D2D resource information area that is farthest from the boundary of the coverage area of the base station and the boundary of the coverage area of the base station is The size is at least equal to the three-hop distance outside the coverage area of the base station, or even further.
  • the distance between the D2D terminal that is the farthest from the base station and the distance from the D2D terminal that is farthest from the base station to the base station in the D2D terminal corresponding to the D2D terminal transmitted by the neighboring base station of the base station and the D2D resource allocation information of the D2D terminal received by the base station At least the minimum spatial reusable distance of the D2D resource.
  • the minimum spatial reusable distance of the D2D resource is a three-hop distance.
  • a cell in a cellular network has a diameter approximately equal to the minimum spatial reusable distance of the D2D resource. If there is only one cell in the coverage area of a base station, the base station only needs to obtain the location information of the D2D terminal in the coverage area of the neighboring base station of the base station and the D2D resource allocation information of the D2D terminal; if there are multiple cells in the coverage area of one base station, the base station only The D2D terminal in the cell adjacent to the base station in the coverage area of the neighboring base station of the base station needs to be acquired. Location information, D2D resource allocation information of the D2D terminal.
  • the diameter of one cell in the cellular network is much larger than the minimum spatial reusable distance of the D2D resource, only the location information of the D2D terminal within the spatial reusable distance of the D2D resource and the D2D resource allocation information of the D2D terminal may be exchanged. If the diameter of one cell in the cellular network is much smaller than the minimum spatial reusable distance of the D2D resource, at least the location information of the D2D terminal and the D2D resource allocation information of the D2D terminal in the minimum spatial reusable distance of the D2D resource are acquired. The amount of information and complexity of interaction between base stations will increase significantly.
  • the base station does not send the location information of all the D2D terminals in the coverage area and the D2D resource allocation information of the D2D terminal to the neighboring base station of the base station.
  • the base station associates the coverage area of the base station with the base station.
  • the location information of the D2D terminal whose distance of the base station coverage area boundary is smaller than the minimum spatial reusable distance of the D2D resource, and the D2D resource allocation information of the D2D terminal are sent to the neighboring base station.
  • the spatial reusable distance of the D2D resource is generally the three-hop distance of the D2D terminal transmission capability.
  • the base station After receiving the location information of the D2D terminal and the D2D resource allocation information of the D2D terminal sent by the neighboring base station of the base station, the base station can learn the D2D resource used by the D2D terminal in the cell around the coverage area of the base station, so the base station can also be based on the neighboring node.
  • Determining, by the base station, the location information of the D2D terminal and the D2D resource allocation information of the D2D terminal determining whether the D2D resource used by the D2D terminal in the coverage area of the base station corresponds to the location information and resource allocation information sent by the neighboring base station.
  • the D2D resource used by the D2D terminal collides with the resource, and if so, the D2D terminal re-allocates the D2D terminal that has a resource collision with the D2D terminal corresponding to the location information and the resource allocation information sent by the neighboring base station in the coverage of the base station.
  • the base station determines, according to the location information of the D2D terminal and the D2D resource allocation information of the D2D terminal, that the D2D terminal has just entered the coverage area of the neighboring base station, and the D2D resource and the base station coverage area used by the D2D terminal.
  • the D2D resources used by one D2D terminal are the same.
  • the base station determines that the D2D resource used by the D2D terminal in the coverage area of the base station will collide with the resource. Therefore, the base station re-allocates the D2D resource for the D2D terminal that has the resource collision.
  • the base station determines the allocated D2D resources that may collide by analyzing the location information of the D2D terminal and the D2D resource allocation information of the D2D terminal, and actively allocates the D2D resources to the D2D terminal, thereby achieving reasonable and high efficiency.
  • the D2D resource is allocated for the D2D terminal.
  • the base station receives the location information of the D2D terminal and the D2D resource allocation information of the D2D terminal sent by the neighboring base station of the base station, and also needs to obtain the location information of the D2D terminal in the coverage area and the D2D resource allocation information of the D2D terminal, and the like. Thereby, it is possible to determine the state of the D2D terminal in the neighboring base station within its coverage area and outside its coverage area.
  • the base station After the base station allocates D2D resources to the D2D terminals in its coverage area, it can determine which D2D terminals are allocated which D2D resources. However, the location of the D2D terminal is not fixed and changes at any time.
  • the D2D terminal allocated with the D2D resource may leave the coverage area of the base station, or some D2D resources are allocated.
  • the D2D terminal moves from the coverage area of other base stations to the coverage area of the base station. Therefore, the D2D resources used by the D2D terminals in the coverage area of the base station are not all allocated by the base station, so that the base station can determine the allocated D2D resources when the D2D resources are allocated to other D2D terminals, and the D2D terminals in the coverage area of the base station.
  • the D2D resource allocation information used by it is sent to the base station corresponding to the cell in which it is located through the D2N link.
  • the in-vehicle D2D terminal may pass through a coverage area of a plurality of base stations during the mobile process, so it is necessary to consider the case where the D2D terminal switches the D2D link resource during the mobile process.
  • the D2D terminal moves between the cells in the coverage area of the base station, and when the D2N link resource is triggered, the D2D link resource does not need to be switched.
  • the D2D terminal is an in-vehicle D2D terminal
  • the base station has obtained complete information of the in-vehicle D2D terminal, and thus no additional processing is required.
  • the D2D terminal moves between the coverage areas of the base station.
  • the D2D terminal performs handover through the D2N link, and the D2D terminal continues to use the original D2D resource after moving to the coverage area of the target base station.
  • the D2D resource allocation information used by the D2D terminal should be included in the user context of the D2N link handover, thus ensuring that the D2D link resources of the D2D terminal are converted to be controlled by the target base station.
  • the D2D terminal is an in-vehicle D2D terminal, and the in-vehicle D2D terminal moves from a coverage area of another base station to a coverage area of the base station.
  • the D2D resource used by the in-vehicle D2D terminal does not change, but the in-vehicle D2D terminal needs to be
  • the used D2D resource allocation information is sent to the base station.
  • the D2D terminal in the base station cover area can transmit the location information of the D2D terminal and the D2D resource allocation information of the D2D terminal to the base station through the D2N link.
  • the D2D terminal in the base station cover area may send the location information of the D2D terminal, the D2D resource allocation information of the D2D terminal to the base station every fixed period, or the location information of the D2D terminal in the base station cover area in the D2D terminal, When the D2D resource allocation information of the D2D terminal changes, the location information of the D2D terminal and the D2D resource allocation information of the D2D terminal are transmitted to the base station.
  • the D2D terminal only has a location change in the coverage area of the base station.
  • the location information of the D2D terminal sent by the D2D terminal to the base station may include only the latitude and longitude information of the D2D terminal.
  • the D2D resource in the coverage area of the base station is changed by the D2D terminal.
  • the D2D resource allocation information of the D2D terminal sent by the D2D terminal to the base station may include only the D2D resource used by the D2D terminal.
  • the base station may allocate D2D resources to the D2D terminals in the coverage area of the base station.
  • the base station When the base station allocates D2D resources to the D2D terminal, the base station first selects an idle D2D resource. When there is no idle D2D resource, the D2D resource outside the minimum space reusable distance of the D2D resource is selected for multiplexing.
  • the base station selects the D2D terminal transmission capability beyond the three-hop distance. D2D resources are multiplexed.
  • the base station may adopt different D2D resource allocation policies according to the location of the D2D terminal from the base station.
  • the base station may not need to consider the location information of the D2D terminal and the D2D resource allocation information of the D2D terminal sent by the neighboring base station of the base station, but only in the edge area of the coverage area of the base station.
  • the D2D terminal allocates the D2D resource, the location information of the D2D terminal and the D2D resource allocation information of the D2D terminal transmitted by the neighboring base station of the base station are considered.
  • the D2D terminal when receiving the D2D resources allocated by the base station, the D2D terminal should also detect the status of the D2D link.
  • the D2D link collision feedback information should be reported to the base station through the D2N link.
  • the base station receives the D2D link collision feedback information sent by the D2D terminal, where the D2D link collision feedback information is sent to the base station after the D2D terminal detects that the D2D link has a resource collision; the base station according to the D2D The link collision feedback information re-allocates the D2D resource for the D2D terminal that sends the D2D link collision feedback information.
  • the base station may also allocate the D2D resource to the D2D terminal, and may also indicate the allocation period of the D2D resource using the D2D resource, and the D2D terminal releases the D2D resource allocated by the base station when the D2D resource allocation period arrives.
  • each base station in the cellular network only one cell is included in the coverage area of each base station in the cellular network, and the diameter of each cell is the minimum spatial reusable distance of the D2D resource.
  • the base station corresponding to the cell in the middle of FIG. 4 receives the location information of the D2D terminal and the D2D resource allocation information of the D2D terminal transmitted by the base station corresponding to the neighboring cell in the coverage area, where the D2D terminal is the in-vehicle D2D terminal.
  • the D2D resource information area of the intermediate base station is composed of six cells adjacent to the base station.
  • the base station acquires the location information of the in-vehicle D2D terminal in the coverage area of the base station and the D2D resource allocation information of the in-vehicle D2D terminal through the D2N link, and the base station acquires the in-vehicle D2D terminal in each cell in the D2D resource allocation information area through the X2 interface.
  • the base station may select an appropriate D2D resource when the D2D resource is allocated to the in-vehicle D2D terminal in the coverage area according to the acquired location information of the in-vehicle D2D terminal and the D2D resource allocation information of the in-vehicle D2D terminal, and avoid the in-vehicle D2D terminal in the D2D resource information area.
  • the D2D resources used are the same.
  • the base station may also analyze, according to the acquired location information of the in-vehicle D2D terminal and the D2D resource allocation information of the in-vehicle D2D terminal, whether the allocated time-frequency resource may have a resource collision, and if the in-vehicle D2D terminal in the coverage area of the base station is determined, resources may occur. Collision, actively reassign D2D resources to it.
  • the base station may determine the allocated D2D resources according to the acquired location information of the in-vehicle D2D terminal and the D2D resource allocation information of the in-vehicle D2D terminal, thereby determining an unallocated, idle D2D resource.
  • the base station allocates D2D resources to the in-vehicle D2D terminals in its coverage area, the base station first selects idle D2D resources. When there is no free D2D When resources are used, D2D resources outside the three-hop distance are used for multiplexing.
  • the coverage area of each base station in the cellular network includes 7 cells, and the diameter of each cell is the minimum spatial reusable distance of the D2D resource.
  • the base station base station is responsible for managing and allocating D2D resources of the D2D terminal within its coverage area, where the D2D terminal is an in-vehicle D2D terminal.
  • the D2D resource information area of the intermediate base station is composed of 12 cells adjacent to the boundary of the coverage area of the base station.
  • the base station acquires the location information of the D2D terminal of the in-vehicle D2D terminal and the D2D resource allocation information of the D2D terminal in the coverage area of the base station through the D2N link, and the base station acquires the in-vehicle in each cell in the D2D resource allocation information area through the X2 interface.
  • Location information of the D2D terminal of the D2D terminal and D2D resource allocation information of the D2D terminal are located at the base station through the D2N link.
  • the base station determines that the in-vehicle D2D terminal in the coverage area of the base station meets one of the following conditions, and sends the location information of the in-vehicle D2D terminal and the D2D resource of the in-vehicle D2D terminal to the neighboring base station of the base station through the X2 interface.
  • Assign information :
  • the transmitted location information of the in-vehicle D2D terminal includes one or more of the following parameters: latitude and longitude information of the in-vehicle D2D terminal; moving speed of the in-vehicle D2D terminal; moving acceleration of the in-vehicle D2D terminal; moving direction of the in-vehicle D2D terminal; and vehicle D2D The elevation of the terminal.
  • Condition 2 D2D resource allocation information used by the vehicle D2D terminal changes
  • the terminal that changes the D2D resource allocation information may send only the D2D resource allocation information without transmitting the location information of the in-vehicle D2D terminal, and the transmitted D2D resource allocation information may include only the D2D resource used by the in-vehicle D2D terminal.
  • Condition 3 The coverage area of the vehicle D2D terminal leaving the base station
  • the D2D terminal leaving the coverage area of the base station it is not necessary to transmit the location information and the D2D resource allocation information, but only the identifier of the in-vehicle D2D terminal is sent out.
  • location information and D2D resource allocation information may be transmitted.
  • the embodiment of the present invention further provides a base station, and the specific content of the base station may be implemented by referring to the foregoing method, and details are not described herein again.
  • a base station provided by an embodiment of the present invention includes:
  • the first transceiver unit 601 is configured to receive location information of the device to the device D2D terminal sent by the neighboring base station of the base station, and D2D resource allocation information of the D2D terminal;
  • the D2D resource allocation unit 602 is configured to: according to the location information of the D2D terminal sent by the neighboring base station, the D2D resource allocation information of the D2D terminal, and the location information of the D2D terminal in the coverage area of the base station, and the D2D resource allocation information of the D2D terminal. Allocating D2D resources to D2D terminals in the coverage area of the base station.
  • the first transceiver unit 601 is further configured to:
  • the first transceiver unit 601 is specifically configured to:
  • the moving distance of the D2D terminal exceeds a threshold
  • the D2D resource allocation information used by the D2D terminal changes
  • the D2D terminal leaves the coverage area of the base station
  • the D2D terminal enters a coverage area of the base station.
  • the first transceiver unit 601 is specifically configured to:
  • the second transceiver unit 603 is further configured to:
  • the D2D resource allocation unit 602 is specifically configured to:
  • the D2D resource allocation unit 602 is further configured to:
  • Determining, according to the location information of the D2D terminal and the D2D resource allocation information of the D2D terminal, the D2D resource used by the D2D terminal in the coverage area of the base station and the location information and resource allocation sent by the neighboring base station The D2D resource used by the D2D terminal corresponding to the information collides with the resource, and if so, the D2D terminal corresponding to the location information and the resource allocation information sent by the neighboring base station in the coverage of the base station is generated.
  • the source collision D2D terminal reassigns the D2D resources.
  • the base station receives location information and D2D resource allocation information of the D2D terminal sent by the neighboring base station by using an X2 interface with the neighboring base station.
  • the location information of the D2D terminal includes one or any combination of the following parameters:
  • the D2D resource allocation information of the D2D terminal includes one or any combination of the following parameters:
  • the allocation period of the D2D resources used by the D2D terminal is the allocation period of the D2D resources used by the D2D terminal.
  • the D2D terminal is an in-vehicle D2D terminal.
  • another base station provided by the embodiment of the present invention includes: a processor 701, a memory 702, and a transceiver 703;
  • the transceiver 703 is configured to receive location information of a device to a device D2D terminal sent by a neighboring base station of the base station, and D2D resource allocation information of the D2D terminal;
  • the processor 701 is configured to read a program in the memory 702, and perform the following processes: performing location information of a D2D terminal, D2D resource allocation information of a D2D terminal, and coverage of the base station according to the neighboring base station.
  • the location information of the D2D terminal in the area and the D2D resource allocation information of the D2D terminal allocate D2D resources to the D2D terminal in the coverage area of the base station.
  • the transceiver 703 is specifically configured to:
  • the transceiver 703 is specifically configured to:
  • the moving distance of the D2D terminal exceeds a threshold
  • the D2D resource allocation information used by the D2D terminal changes
  • the D2D terminal leaves the coverage area of the base station
  • the D2D terminal enters a coverage area of the base station.
  • the transceiver 703 is specifically configured to:
  • the distance between the coverage area of the base station and the neighboring base station coverage area of the base station is smaller than the D2D resource.
  • the location information of the D2D terminal of the minimum spatial reusable distance and the D2D resource allocation information of the D2D terminal are transmitted to the neighboring base station.
  • the transceiver 703 is specifically configured to:
  • the processor 701 is specifically configured to:
  • the processor 701 is further configured to:
  • Determining, according to the location information of the D2D terminal and the D2D resource allocation information of the D2D terminal, the D2D resource used by the D2D terminal in the coverage area of the base station and the location information and resource allocation sent by the neighboring base station The D2D resource used by the D2D terminal corresponding to the information collides with the resource, and if so, the D2D terminal that collides with the D2D terminal corresponding to the location information and the resource allocation information sent by the neighboring base station in the coverage of the base station Reassign D2D resources.
  • the base station receives location information and D2D resource allocation information of the D2D terminal sent by the neighboring base station by using an X2 interface with the neighboring base station.
  • the location information of the D2D terminal includes one or any combination of the following parameters:
  • the D2D resource allocation information of the D2D terminal includes one or any combination of the following parameters:
  • the allocation period of the D2D resources used by the D2D terminal is the allocation period of the D2D resources used by the D2D terminal.
  • the D2D terminal is an in-vehicle D2D terminal.
  • the bus architecture may include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 701 and various circuits of memory represented by memory 702.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein.
  • the bus interface provides an interface.
  • Transceiver 703 can be a plurality of components, including a transmitter and a transceiver, providing means for communicating with various other devices on a transmission medium.
  • the processor 701 is responsible for managing the bus architecture and general processing, and the memory 702 can store data used by the processor 701 in performing operations.
  • the base station after receiving the location information of the D2D terminal and the D2D resource allocation information of the D2D terminal sent by the neighboring base station of the base station, the base station is a D2D terminal in the coverage area of the base station. Assign D2D resources.
  • the D2D resource allocation is performed by the base station according to the location information of the D2D terminal, the D2D resource allocation information of the D2D terminal, the location information of the D2D terminal in the coverage area of the base station, and the D2D resource allocation information of the D2D terminal. Therefore, the base station can allocate D2D resources more reasonably, reduce the probability of resource collision of the allocated D2D resources, reduce the switching of the D2D resources, and complete the D2D resource allocation reasonably and efficiently.
  • embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) including computer usable program code.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention concerne un procédé d'allocation de ressources de dispositif à dispositif (D2D) et une station de base. Le procédé consiste : à recevoir, par une station de base, des informations de position et des informations d'allocation de ressources D2D de terminaux D2D envoyées par des stations de base voisines de la station de base ; et à allouer, par la station de base, des ressources D2D pour des terminaux D2D dans une couverture de la station de base selon les informations de position et les informations d'allocation de ressources D2D des terminaux D2D envoyées par les stations de base voisines et les informations de position et les informations d'allocation de ressources D2D des terminaux D2D dans la couverture de la station de base. La station de base de la présente invention peut allouer des ressources D2D de manière plus raisonnable, réduire la possibilité de collision de ressources de ressources D2D allouées et réduire la commutation entre des ressources D2D, permettant ainsi d'obtenir une allocation de ressources D2D raisonnable et hautement efficace.
PCT/CN2016/088668 2015-07-06 2016-07-05 Procédé d'allocation de ressources de dispositif à dispositif (d2d) et station de base Ceased WO2017005174A1 (fr)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110062465A (zh) * 2018-09-29 2019-07-26 中国信息通信研究院 一种终端直通通信的资源分配方法

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10667239B2 (en) * 2017-03-10 2020-05-26 Futurewei Technologies, Inc. Method for resource selection
CN108633008B (zh) * 2017-03-20 2019-09-17 电信科学技术研究院 一种进行车队资源配置的方法及相关设备
WO2018202798A1 (fr) * 2017-05-04 2018-11-08 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Groupes d'équipements utilisateurs (ue), ue de gestionnaires de groupes d'ue, et ue de membres de groupes d'ue
CN109803431A (zh) * 2017-11-17 2019-05-24 华为技术有限公司 通信方法和终端设备
CN108260082B (zh) * 2017-12-13 2020-06-30 中国联合网络通信集团有限公司 一种在v2x资源池中选择资源的方法和装置
CN109308808A (zh) * 2018-09-26 2019-02-05 上海华章信息科技有限公司 区域式汽车信息传输方法
CN109525962A (zh) * 2018-09-26 2019-03-26 上海华章信息科技有限公司 智能汽车的驾驶信息处理方法
WO2020118706A1 (fr) * 2018-12-14 2020-06-18 北京小米移动软件有限公司 Procédé et appareil de transmission d'informations de configuration
CN111417086A (zh) * 2019-01-07 2020-07-14 中国移动通信有限公司研究院 一种资源管理方法及基站
CN111601234B (zh) * 2019-02-21 2022-01-14 华为技术有限公司 一种基于自动驾驶技术的资源确定方法及装置
CN111629438B (zh) * 2019-02-27 2023-09-26 华为技术有限公司 一种资源分配方法及装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100240312A1 (en) * 2009-03-23 2010-09-23 Nokia Corporation Apparatus and method for interference avoidance in mixed device-to-device and cellular environment
CN103781050A (zh) * 2014-01-09 2014-05-07 北京邮电大学 一种小区边缘d2d用户的资源分配方法
CN103841649A (zh) * 2014-03-19 2014-06-04 宇龙计算机通信科技(深圳)有限公司 终端直连通信方法和终端直连通信系统
CN104159304A (zh) * 2013-05-15 2014-11-19 华为技术有限公司 终端到终端通信方法、基站

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8885507B2 (en) * 2009-12-11 2014-11-11 Nokia Corporation Method, apparatus and computer program product for allocating resources in wireless communication network
CN104640098B (zh) * 2013-11-13 2019-01-04 电信科学技术研究院 D2d链路资源的辅助管理方法和装置、以及管理方法和装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100240312A1 (en) * 2009-03-23 2010-09-23 Nokia Corporation Apparatus and method for interference avoidance in mixed device-to-device and cellular environment
CN104159304A (zh) * 2013-05-15 2014-11-19 华为技术有限公司 终端到终端通信方法、基站
CN103781050A (zh) * 2014-01-09 2014-05-07 北京邮电大学 一种小区边缘d2d用户的资源分配方法
CN103841649A (zh) * 2014-03-19 2014-06-04 宇龙计算机通信科技(深圳)有限公司 终端直连通信方法和终端直连通信系统

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110062465A (zh) * 2018-09-29 2019-07-26 中国信息通信研究院 一种终端直通通信的资源分配方法
CN110062465B (zh) * 2018-09-29 2021-05-14 中国信息通信研究院 一种终端直通通信的资源分配方法

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