WO2017166189A1 - 在用户设备之间传输数据的方法、用户设备和基站 - Google Patents

在用户设备之间传输数据的方法、用户设备和基站 Download PDF

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Publication number
WO2017166189A1
WO2017166189A1 PCT/CN2016/078041 CN2016078041W WO2017166189A1 WO 2017166189 A1 WO2017166189 A1 WO 2017166189A1 CN 2016078041 W CN2016078041 W CN 2016078041W WO 2017166189 A1 WO2017166189 A1 WO 2017166189A1
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WIPO (PCT)
Prior art keywords
link
user equipment
parameter
selection policy
policy information
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PCT/CN2016/078041
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English (en)
French (fr)
Inventor
曹振臻
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华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2016/078041 priority Critical patent/WO2017166189A1/zh
Publication of WO2017166189A1 publication Critical patent/WO2017166189A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W16/00Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/02Resource partitioning among network components, e.g. reuse partitioning
    • H04W16/10Dynamic resource partitioning

Definitions

  • the present invention relates to the field of communications, and more particularly to a method, user equipment and base station for transmitting data between user equipments.
  • UE user equipment
  • D2D device-to-device
  • Communication (as shown in Figure 2).
  • it is determined by the UE itself whether to use a cellular link or a D2D link to communicate with another UE.
  • the UE cannot reasonably select which link to use to communicate with another UE according to the specific conditions of the network (such as the load condition of the cellular link and the D2D link), the load of the network system may be unbalanced. In turn, it affects the normal operation of the network system.
  • the present application proposes a method for transmitting data between user equipments, user equipment and base stations to reasonably distribute network load.
  • the first aspect provides a method for transmitting data between user equipments, where the first user equipment receives link selection policy information sent by a base station, where the link selection policy information is used to indicate a chain that carries the data. a path or a method for indicating a link carrying the data, wherein the link carrying the data comprises a cellular link and a device-to-device D2D link; the first user equipment selects a policy according to the link Information, selecting a target link from the cellular link and the D2D link; the first user equipment transmitting the data to the second user equipment over the target link.
  • the first user equipment Before receiving the link selection policy information sent by the base station, the first user equipment may first send a request message to the base station, where the request message is used to indicate or request the base station to send the link selection policy information for the first user equipment.
  • the user equipment when the user equipment transmits data, it is determined by the user equipment itself whether to use the cellular link or the D2D link to transmit data to another user equipment, but the user equipment cannot be based on the specific conditions of the network (for example, cellular The load condition of the link and the D2D link) Which link is used to transmit data, when a large number of user equipments use cellular links to transmit data, it is likely to cause congestion of the cellular link. Therefore, in the prior art, the user equipment itself decides which link to use to transmit data between users, which may cause load imbalance of the network system, and may also cause certain interference to other user equipment.
  • the specific conditions of the network for example, cellular The load condition of the link and the D2D link
  • the base station can acquire the specific conditions of the network (such as the load condition of the cellular link and the D2D link and the transmission link configured by other base stations around the base station), when the data is transmitted between the user equipments,
  • the user equipment can indicate the link used when sending the data by receiving the link selection policy information sent by the base station, so that the user equipment can select a more suitable link to send data, thereby avoiding the unreasonable selection of the link resources.
  • the resulting network system is overloaded or wastes network resources.
  • the method before the first user equipment receives the link selection policy information sent by the base station, the method further includes: determining, by the first user equipment Whether the first user equipment is in the coverage of the base station; if the first user equipment is not in the coverage of the base station, the first user equipment determines the D2D link as a target link.
  • the link selection policy information is used to indicate a link that carries the data, and the first user equipment selects policy information according to the link, Selecting a target link from the cellular link and the D2D link, including: when the link selection policy information includes first indication information, the first user equipment determines that the D2D link is the And the first user equipment determines that the cellular link is the target link, when the link selection policy information does not include the first indication information or includes the second indication information.
  • the foregoing first indication information may be indication information including a D2D link resource, and the first user equipment may obtain the D2D link resource from the first indication information, thereby determining that the D2D link is the target link.
  • the foregoing second indication information may be indication information that does not include the D2D link resource, so that when the first user equipment cannot obtain the D2D link resource in the second indication information, the cellular link is determined to be the target link, or the second The indication information is directly used to instruct the first user equipment to select a cellular link as the target link.
  • the link selection policy information includes first indication information, and the first user equipment is selecting the D2D Before the link is used as the target link, the method further includes: the first user equipment reporting the area information of the first user equipment to the base station, so that the base station determines, according to the area information of the first user equipment, The D2D link resource of the first user equipment.
  • the manner in which the base station determines the D2D link resources of the first user equipment may be multiple. For example, the base station may select, according to the area information of the first user equipment, the link resources of one resource pool from the multiple resource pools as the first. D2D link resource of the user equipment.
  • Allocating D2D link resources to the user equipment according to the area information of the user equipment may allocate more suitable D2D resources to the user equipment, so that the D2D link resources are more properly allocated in the cell.
  • the method before the first user equipment reports the area information of the first user equipment to the base station, the method further includes The first user equipment receives the area reporting indication information sent by the base station; the first user equipment determines the first user equipment according to the parameter included in the area reporting indication information and the location parameter of the first user equipment. Regional information.
  • the location parameter of the first user equipment may be GPS location information or location information determined by a Beidou navigation location system or other information capable of characterizing the location of the first user.
  • the area reporting indication information includes a third parameter, a fourth parameter, and a third parameter of any one of the multiple areas And determining, by the first user equipment, the area information of the first user equipment according to the parameter included in the area reporting indication information and the location parameter of the first user equipment, including: The first user equipment acquires a configuration parameter, where the configuration parameter is used to perform modulo processing on the location parameter of the first user equipment; the latitude coordinate value of the location where the first user equipment is located by the first user equipment And the longitude coordinate value is respectively modulo with the configuration parameter to obtain a first modulo value and a second modulo value; if at least one of the following conditions is met, determining that the first user equipment is in the first area: first The modulo value is smaller than the third parameter of the first region; the first modulo value is greater than the fourth parameter of the first region; the second modulo value is smaller than the fifth parameter of the first region; and the second modulo value is Para
  • the configuration parameter includes a first parameter and a second parameter, where the first user equipment locates the first user equipment
  • the latitude coordinate value and the longitude coordinate value of the position are respectively modulo with the configuration parameter, and the first modulo value and the second modulo value are obtained, including: the latitude of the first user equipment where the first user equipment is located
  • the coordinate value is modulo with the first parameter to obtain a first modulo value; the first user equipment And selecting a longitude coordinate value of the location where the first user equipment is located and the second parameter to obtain a second modulus value.
  • the acquiring, by the first user equipment, the configuration parameter includes: sending, by the first user equipment, the base station The configuration parameter is obtained in the area report indication information.
  • the first user equipment determines that the D2D link is After the target link, the method further includes: the first user equipment acquiring a selection parameter of the at least one resource pool; the first user equipment according to the location parameter of the first user equipment and the at least one resource pool The relationship of the selected parameters determines the resources of the D2D link.
  • the at least one resource pool includes any one of the first resource pools
  • the selection parameter of the first resource pool includes a third Determining, by the first user equipment, the D2D link according to the relationship between the location parameter of the first user equipment and the selection parameter of the at least one resource pool, at least one of a parameter, a fourth parameter, a fifth parameter, and a sixth parameter
  • the resource includes: the first user equipment acquires a configuration parameter, where the configuration parameter is used to perform modulo processing on a location parameter of the first user equipment; where the first user equipment locates the first user equipment The latitude coordinate value and the longitude coordinate value of the position are respectively modulo with the configuration parameter to obtain a first modulo value and a second modulo value; if the at least one of the following conditions is met, the first user equipment selects the first resource
  • the link resource of the pool serves as the resource of the D2D link: the first modulo value is smaller than the third parameter of the first resource
  • the configuration parameter includes a first parameter and a second parameter
  • the first user equipment uses the first user equipment
  • the latitude coordinate value and the longitude coordinate value of the location are respectively modulo with the configuration parameter, and the first modulo value and the second modulo value are obtained, including: the location where the first user equipment locates the first user equipment
  • the latitude coordinate value is modulo with the first parameter to obtain a first modulo value
  • the first user equipment modulates the longitude coordinate value of the location where the first user equipment is located and the second parameter to obtain a second Take the modulus value.
  • the first user equipment acquires configuration parameters, including: the first user equipment Obtaining the configuration parameter in the first indication information, or the first user equipment is not in the coverage of the base station, and the first user equipment acquires the configuration parameter from pre-configured information.
  • the first user equipment acquires a selection parameter of the at least one resource pool, including: the user equipment from the first Acquiring the selection parameter of the at least one resource pool in the indication information, or the first user equipment is not in the coverage of the base station, and the first user equipment acquires the at least one resource pool from the pre-configured information. Selection parameters.
  • the link selection policy information is used to indicate a selection manner of a link that carries the data, and the first user equipment is configured according to the link. Selecting policy information, selecting a target link from the cellular link or the D2D link, including: when the link selection policy information includes resources of the D2D link, the first user equipment determines Whether the state of the cellular link satisfies a preset condition; if the state of the cellular link meets a preset condition, the first user equipment determines that the D2D link is the target link; if the cellular link The state does not satisfy the preset condition, and the first user equipment determines that the cellular link is the target link.
  • the first user equipment determines whether the state of the cellular link meets a preset condition, including: The first user equipment meets at least one of the following conditions: determining that the state of the cellular link meets a preset condition: the T310 or T311 or T301 timer of the first user equipment is in an operating state; the first user equipment The link quality RSRP value is lower than the first threshold; the link quality RSRQ value of the first user equipment is lower than the second threshold.
  • the link selection policy information includes the resources of the D2D link, it is not necessary to determine that the D2D link is the target link, but the preset condition is also determined before determining the target link. That is to say, when the link selection policy information includes the D2D link resource, it cannot directly determine that the D2D link is the target link, but judges the condition of the cellular link, if the quality of the cellular link is poor or the load is heavy. At this time, it is determined that the D2D link is the target link, and when the quality of the cellular link is good or the load is low, the cellular link is still determined as the target link, so that it can be more reasonable according to the specific condition of the cellular link. Select a link resource.
  • the first user equipment passes the target chain Transmitting the data to the second user equipment
  • the method includes: the access protocol layer of the first user equipment sends the third indication information to the upper layer of the access protocol layer, to indicate that the upper layer of the access protocol layer passes the target The link sends data to the second user equipment.
  • the upper layer of the access protocol layer may be a layer above the access protocol layer of the UE, for example, an IP layer, a non-access protocol layer, a data transport layer, an application layer, etc., through which data may be sent to the second user equipment.
  • the first user equipment passes the target chain Transmitting the data to the second user equipment, the method includes: the first user equipment sets a bearer for transmitting the data on the non-target link as an unavailable bearer, and does not respond to the non-target link for transmitting The bearer request for the data.
  • the data is a car to other V2X data.
  • a second aspect provides a method for transmitting data between user equipments, including: receiving, by a first user equipment, link selection policy information sent by a base station, where the link selection policy information is used to indicate a link for receiving data,
  • the link that receives the data includes a cellular link and a device-to-device D2D link; the first user equipment selects from the cellular link and the D2D link according to the link selection policy information.
  • a target link the first user equipment receives the data sent by the second user equipment by using the target link.
  • the base station can acquire the specific conditions of the network (such as the load condition of the cellular link and the D2D link and the transmission link configured by other base stations around the base station), when transmitting data between the user equipments,
  • the link selection policy information sent by the base station is used to indicate which link the user equipment uses when receiving data, so that the user equipment can select a more suitable link to receive data, thereby avoiding the unreasonable selection of link resources.
  • the load of the network system is not balanced or the network resources are wasted.
  • the link selection policy information includes first indication information, and the first user equipment selects policy information according to the link from the cellular chain. Selecting the target link in the path and the D2D link, the first user equipment acquiring the first indication information from the received link selection policy information, and determining the D2D link as the target link.
  • the foregoing first indication information may be indication information that includes a D2D link resource, and the first user equipment may obtain the D2D link resource from the first indication information after receiving the first indication information. Thereby determining the D2D link as the target link.
  • the link selection policy information includes second indication information, where the first user equipment selects policy information according to the link from the cellular chain Determining the target link in the path and the D2D link, the first user equipment acquiring the second indication information from the received link selection policy information, determining that the cellular link is the target chain road.
  • the foregoing second indication information may be indication information that does not include the D2D link resource, so that when the first user equipment cannot obtain the D2D link resource in the second indication information, the cellular link is determined to be the target link, or the second The indication information is directly used to instruct the first user equipment to select a cellular link as the target link.
  • the receiving link selection policy information includes third indication information, the first user equipment, according to the link selection policy information, from the Selecting a target link in the link and the D2D link, the first user equipment acquiring third indication information from the received link selection policy information, determining the cellular link and the D2D The link is the target link. It should be understood that the first user equipment may choose to rely on the cellular link and the D2D link to collectively receive data when receiving data.
  • a third aspect provides a method for transmitting data between user equipments, including: sending, by a base station, link selection policy information to a first user equipment, so that the first user equipment selects policy information according to the link, The cellular link and the device select a target link in the device D2D link, and send data to the second user equipment through the target link, where the link selection policy information is used to indicate the link carrying the data. Or used to indicate the way in which the link carrying the data is selected.
  • the base station can acquire the specific conditions of the network (such as the load condition of the cellular link and the D2D link and the transmission link configured by other base stations around the base station), when transmitting data between the user equipments, Sending link selection policy information to the user equipment by the base station to indicate which link the user equipment uses when transmitting data, so that the user equipment can select a more suitable link to send data, thereby avoiding unreasonable selection of link resources.
  • the resulting network system is overloaded or wastes network resources.
  • the link selection policy information includes indication information for indicating a link that carries the data, where the base station sends the first user equipment
  • the link selection policy information includes: the base station sending, to the first user equipment, link selection policy information including first indication information, so that the first user equipment determines that the D2D link is the target chain. Or the base station sends the first user equipment without the first And indicating link selection policy information of the message or link selection policy information including the second indication information, so that the first user equipment determines that the cellular link is the target link.
  • the base station sends, to the first user equipment, link selection policy information that includes first indication information, and the foregoing An indication information carries a selection parameter of the at least one resource pool, so that the first user equipment determines the D2D link according to a relationship between a location parameter of the first user equipment and a selection parameter of the at least one resource pool. resource of.
  • the first indication information sent by the base station to the first user equipment includes any one of the first resource pools. Selecting a parameter, wherein the selection parameter of the first resource pool includes at least one of a third parameter, a fourth parameter, a fifth parameter, and a sixth parameter, so that the first user equipment performs the following steps: The latitude coordinate value and the longitude coordinate value of the location where the first user equipment is located are respectively subjected to modulo processing to obtain a first modulo value and a second modulo value; if at least one of the following conditions is met, the first resource pool is selected.
  • the first modulo value is smaller than the third parameter of the first resource pool; the first modulo value is greater than the fourth parameter of the first resource pool; and the second modulo value is smaller than the first resource pool.
  • the fifth parameter; the second modulus value is greater than the sixth parameter of the first resource pool.
  • the link selection policy information includes first indication information, and the first indication information carries the first user equipment The D2D link resource, before the first user equipment selects the D2D link as the target link, the method further includes: the base station receiving the first user reported by the first user equipment The area information of the device; the base station determines the D2D link resource of the first user equipment according to the area information of the first user equipment.
  • the method before the receiving the area information of the first user equipment reported by the first user equipment, the method further The base station sends the area reporting indication information to the first user equipment, so that the first user equipment sends the indication information included in the area according to the area and the first user.
  • the location parameter of the device determines the region information of the first user device.
  • the link selection policy information is used to indicate a selection manner of a link that carries the data, and the base station sends a chain to the first user equipment.
  • the route selection policy information includes: the base station transmitting, to the first user equipment, link selection policy information including resources of the D2D link, so that the first user equipment is configured according to whether the state of the cellular link is The preset condition is met to determine the target link.
  • the state of the cellular link meets a preset condition: the T310 or T311 or T301 timer of the first user equipment is in an operating state; the link quality RSRP of the first user equipment The value is lower than the first threshold; the link quality RSRQ value of the first user equipment is lower than the second threshold.
  • the data is a car-to-other V2X data.
  • the base station can acquire the specific conditions of the network (such as the load condition of the cellular link and the D2D link and the transmission link configured by other base stations around the base station), when transmitting data between the user equipments, Sending link selection policy information to the user equipment by the base station to indicate which link the user equipment uses when receiving data, so that the user equipment can select a more suitable link to receive data, thereby avoiding unreasonable selection of link resources.
  • the resulting network system is overloaded or wastes network resources.
  • the base station may generate a link selection policy message according to a specific situation of the network, such as a load condition of the cellular link and the D2D link, and send the link selection policy message to the user equipment, so that Instruct the user equipment to select a more appropriate link to receive data.
  • a link selection policy message according to a specific situation of the network, such as a load condition of the cellular link and the D2D link
  • the link selection policy information includes first indication information
  • the base station sends link selection policy information to the first user equipment, including: the base station Transmitting link selection policy information including the first indication information to the first user equipment, so that the first user equipment determines that the D2D link is the target link.
  • the link selection policy And the second base station sends the link selection policy information to the first user equipment, where the base station sends the link selection policy information including the second indication information to the first user equipment, so that Determining, by the first user equipment, the cellular link as the target link.
  • the link selection policy information includes third indication information
  • the base station sends link selection policy information to the first user equipment, including: the base station Transmitting link selection policy information including the third indication information to the first user equipment, so that the first user equipment determines that the cellular link and the D2D link are the target link.
  • the base station sends the link selection policy information to the first user equipment by using a broadcast or dedicated channel.
  • the first user equipment configures the cellular link to be in a restricted or unavailable state when the cellular link meets the predetermined condition.
  • the first user equipment configures the D2D link to be in a restricted or unavailable state when the cellular link does not meet the preset condition.
  • the V2X data includes: vehicle-to-vehicle data, vehicle-to-person data, vehicle-to-roadside base unit equipment data, and vehicle-to-other data that can communicate.
  • a user equipment comprising means for performing the method of the first aspect above.
  • a user equipment comprising means for performing the method of the second aspect above.
  • a base station comprising means for performing the method of the third aspect above.
  • a base station comprising means for performing the method of the above fourth aspect.
  • a user equipment comprising a memory, a processor, and a transceiver, the memory for storing a program, the processor and the transceiver being used when the program is executed Perform the method in the first aspect.
  • a user equipment comprising a memory, a processor, and a transceiver, the memory for storing a program, the processor and the transceiver being used when the program is executed Perform the method in the second aspect.
  • a base station comprising a memory and a transceiver, the memory for storing a program, the transceiver for performing the method of the third aspect when the program is executed.
  • a base station comprising a memory and a transceiver, the memory for storing a program, the transceiver for performing the method of the fourth aspect when the program is executed.
  • FIG. 2 is a schematic diagram of communication between user equipments over a D2D link.
  • FIG. 3 is a schematic flowchart of a method for transmitting data between user equipments according to an embodiment of the present invention.
  • FIG. 4 is a schematic flowchart of a method for transmitting data between user equipments according to an embodiment of the present invention.
  • FIG. 5 is a schematic flowchart of a method for transmitting data between user equipments according to an embodiment of the present invention.
  • FIG. 6 is a schematic block diagram of a user equipment according to an embodiment of the present invention.
  • FIG. 7 is a schematic block diagram of a user equipment according to an embodiment of the present invention.
  • FIG. 8 is a schematic block diagram of a base station according to an embodiment of the present invention.
  • FIG. 9 is a schematic block diagram of a base station according to an embodiment of the present invention.
  • FIG. 10 is a schematic block diagram of a user equipment according to an embodiment of the present invention.
  • FIG. 11 is a schematic block diagram of a user equipment according to an embodiment of the present invention.
  • FIG. 12 is a schematic block diagram of a base station according to an embodiment of the present invention.
  • FIG. 13 is a schematic block diagram of a base station according to an embodiment of the present invention.
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • LTE-A Advanced Long Term Evolution
  • UMTS Universal Mobile Telecommunication System
  • the user equipment includes but is not limited to a mobile station (Mobile Station, MS), a mobile terminal (Mobile Terminal), a mobile phone (Mobile Telephone), a mobile phone (handset). And portable devices, etc., the user equipment can communicate with one or more core networks via a Radio Access Network (RAN), for example, the user equipment can be a mobile phone (or "cellular"
  • RAN Radio Access Network
  • the user equipment can be a mobile phone (or "cellular"
  • the telephone device, the computer with wireless communication function, etc., the user equipment can also be a mobile device that is portable, pocket-sized, handheld, built-in, or in-vehicle.
  • UEs can communicate with each other through a base station or directly during communication, that is, UEs can communicate using a cellular link or a D2D link.
  • the UE may decide by itself which link to send data to another UE. Specifically, when the UE sends data through the cellular link, it needs to pass through a base station, a core network, or the like. Another UE sends data. When the UE sends data through the D2D link, it needs to apply for the corresponding D2D link resource to the network side, and then send data to another UE through the D2D link.
  • an embodiment of the present invention provides a method for transmitting data between user equipments, where the method determines, by a base station, which link between user equipments to transmit data.
  • the base station can know the load condition or other information of the cellular link and the D2D link, the base station can more reasonably determine which link is used between the user equipment for data transmission, for example, the base station can acquire the cellular link and the D2D.
  • the congestion of the load of the link, and according to the congestion situation, inform the UE which link to use when transmitting data.
  • the following describes a method for transmitting data between user equipments in the embodiment of the present invention by taking a scenario of transmitting data between UE1 and UE2 as an example.
  • FIG. 3 is a schematic flowchart of a method for transmitting data between user equipments according to an embodiment of the present invention. The main steps of the method are as follows:
  • the base station sends the link selection policy information to the UE1, where the link selection policy information is used to indicate the link carrying the data or the manner of selecting the link carrying the data.
  • the link carrying data here includes a cellular link and a D2D link.
  • the data transmitted here may be vehicle-to-vehicle (V2V) data, vehicle-to-person data, vehicle-to-roadside base unit equipment data, and vehicle-to-other data that can be communicated.
  • V2V vehicle-to-vehicle
  • the UE1 After receiving the link selection policy information, the UE1 parses the link selection policy information, if the link selection policy information is used to indicate the link carrying the data, and the link selection policy information does not include the first indication information. Or the second indication information is included, then the UE1 determines to use the cellular link to send data, where the first indication information herein may be indication information specifically indicating that the data is transmitted by using the cellular link, or may not include the D2D link. The indication information of the resource information, so that when the UE1 finds that the first indication information does not include the D2D link resource, it can determine that the data is transmitted by using the cellular link.
  • the UE1 sends data to the UE2 through a cellular link.
  • UE1 may first send a request message to the base station to request the base station to send link selection policy information.
  • step 302 when the UE1 determines to use the cellular link to transmit data or after, the UE1 may configure the D2D link bearer to be a restricted bearer or an unavailable bearer, and the UE1 does not respond to the request after receiving the D2D link bearer request. .
  • the UE1 sends the data to the UE2 through the cellular link, which may include: after receiving the link selection policy information, the UE1 accessing the protocol layer to the upper layer (the access protocol of the UE)
  • the layer above the layer for example, the IP layer, the non-access protocol layer, the data transmission layer, and the application layer, sends a third indication information, instructing the upper layer to transmit data by using a cellular link.
  • the third indication information may be a message indicating that the UE1 does not configure the D2D link resource.
  • the base station can control the UEs within the coverage of the base station to communicate using the cellular link. For example, when the D2D link is congested, the base station can configure the UE to communicate using the cellular link. The way to control the load of the cellular link and the D2D link to make reasonable use of network resources.
  • the base station can configure the UE to communicate through the D2D link.
  • the base station may instruct the UE1 to send data to the UE2 through the D2D link by transmitting link selection policy information to the UE.
  • link selection policy information As shown in Figure 4, the specific steps of the method are as follows:
  • the base station sends link selection policy information to UE1.
  • the UE1 After receiving the link selection policy information, the UE1 determines to use the D2D link to send data.
  • the UE1 After receiving the link selection policy information, the UE1 parses the link selection policy information. If the link selection policy information is used to indicate the link carrying the data, and the link selection policy information includes the first indication information, then The UE1 determines to use the D2D link to send data, where the first indication information may be indication information specifically indicating that the data is transmitted by using the D2D link, or may be directly the resource information of the D2D link.
  • the UE1 sends data to the UE2 through the D2D link.
  • step 401 when UE1 determines to transmit data using the D2D link or after, UE1 configures the cellular link bearer as a restricted bearer or an unavailable bearer, and UE1 does not respond to the request.
  • the UE1 sends the data to the UE2 through the D2D link.
  • the access protocol layer of the UE1 sends the third indication information to the upper layer, indicating that the upper layer uses the D2D link to send data.
  • the third indication information may be a message indicating that the UE1 is configured with a D2D link resource.
  • the link selection policy information sent by the base station to the UE1 is directly used to indicate the link carrying the data, and the UE1 can directly determine the adoption after receiving the link selection policy information. Which link transmits data.
  • the link selection policy information may also be used to indicate a selection manner of the link that carries the data. For example, after receiving the link selection policy information, the UE1 determines, by using a method of determining whether the preset condition is met. The link transmits data, which can better and more accurately allocate the link for transmitting data to UE1.
  • the link selection strategy is described below in conjunction with FIG. 5. The information can also be used to describe in detail the manner in which the link carrying the data is selected.
  • FIG. 5 is a schematic flowchart of a method for transmitting data between user equipments according to an embodiment of the present invention. The main steps of the method are as follows:
  • the base station sends link selection policy information to the UE1, where the link selection policy information is used to indicate a selection manner of a link that carries the data.
  • the UE1 determines whether the preset condition is satisfied.
  • the UE1 sends data to the UE2 by using a cellular link.
  • the UE1 sends data to the UE2 by using a D2D link.
  • UE1 may configure the D2D link bearer to be a restricted bearer or an unavailable bearer, and UE1 does not respond to the D2D link bearer request.
  • the access protocol layer of the UE1 may send the third indication information to the upper layer, where the third indication information is used to indicate whether the upper layer uses the D2D link or the cellular link to send data.
  • the indication information may be that the UE1 configures a D2D link resource for transmitting the first data when the preset condition is satisfied.
  • the foregoing preset condition may include one or more of the following conditions: the link quality RSRP of UE1 is lower than the first threshold; the link quality RSRQ value of UE1 is lower than the second threshold; T310 or T311 or T301 of UE1 The timer is running.
  • the first threshold and the second threshold herein may be set according to the actual situation of the UE1.
  • the UE can determine whether to use the cellular link or the D2D link to transmit data according to its own situation, and can better transmit data between the UEs.
  • the method for transmitting data between user equipments is described in detail above with reference to FIG. 3 to FIG. 5. How to determine how the user equipment is used in the case where the user equipment selects the D2D link as the target link.
  • the D2D link resources are described in detail.
  • the D2D link resource of the user equipment is determined by the base station.
  • the UE1 may report the area information of the UE1 to the base station before selecting the D2D link as the target link, and the base station may further select the D2D link resource determined by the UE1 according to the area information of the UE1, and the base station may select one of the multiple resource pools.
  • the D2D link resource of the resource pool serves as the D2D link resource of UE1.
  • the UE1 further receives the area reporting indication information sent by the base station before determining the D2D resource according to the area information, and then the UE1 performs the parameter included in the indication information according to the received area and
  • the location parameter of UE1 determines the area information of UE1.
  • the location parameter of UE1 may be represented in various forms.
  • the location parameter of UE1 may be GPS location information or location information determined by a Beidou navigation location system or other information capable of characterizing the location of the first user.
  • the UE1 reports the indication information according to the area.
  • the included parameters and the location parameters of the first user equipment determine the regional information of the first user equipment. The specific process is as follows:
  • the UE1 acquires the first parameter and the second parameter of the multiple regions
  • the UE1 modulates the latitude coordinate value of the location where the first user equipment is located with the first parameter to obtain a first modulo value
  • the UE1 modulates the longitude coordinate value of the location where the first user equipment is located and the second parameter to obtain a second modulo value
  • the first modulus value is smaller than the third parameter of the first region
  • the first modulus value is greater than the fourth parameter of the first region
  • the second modulo value is smaller than the fifth parameter of the first region
  • the second modulo value is greater than the sixth parameter of the first region.
  • the UE1 needs to judge a plurality of areas, that is, the above judgment is repeated for different areas. It should be understood that the UE1 may belong to multiple areas when determining the area information, and the UE1 may arbitrarily select the area information of one area and report it to the base station, or may be based on a certain basis. Make certain judgments on these areas, and then select one of the most suitable areas and report the information to the base station.
  • the UE1 may obtain the first parameter and the second parameter from the area reporting indication information sent by the base station, where the first parameter and the second parameter may also be fixed parameters that are pre-written in the UE1, so that the UE1 can directly obtain from the storage module of the UE1.
  • the first parameter and the second parameter may obtain the first parameter and the second parameter from the area reporting indication information sent by the base station, where the first parameter and the second parameter may also be fixed parameters that are pre-written in the UE1, so that the UE1 can directly obtain from the storage module of the UE1.
  • the first parameter and the second parameter may obtain the first parameter and the second parameter from the area reporting indication information sent by the base station, where the first parameter and the second parameter may also be fixed parameters that are pre-written in the UE1, so that the UE1 can directly obtain from the storage module of the UE1.
  • the first parameter and the second parameter may obtain the first parameter and the second parameter from the area reporting indication information sent by the base station, where the first parameter and the second parameter may also be fixed parameters that are pre
  • the D2D link resource of the user equipment is determined by the user equipment itself.
  • the UE1 may determine resources of the D2D link according to the relationship between the location parameter of the UE1 and the selection parameter of one or more resource pools.
  • the configuration parameter of the first resource pool includes at least one of a third parameter, a fourth parameter, a fifth parameter, and a sixth parameter
  • UE1 acquires a first parameter and a second parameter of at least one resource pool
  • UE1 modulates the latitude coordinate value of the location where UE1 is located and the first parameter to obtain a first modulo value
  • UE1 modulo the longitude coordinate value of the location where the UE1 is located and the second parameter to obtain a second modulo value
  • the UE1 selects the link resource of the first resource pool as the resource of the D2D link if at least one of the following conditions is met:
  • the first modulo value is smaller than the third parameter of the first resource pool
  • the first modulo value is greater than the fourth parameter of the first resource pool
  • the second modulo value is smaller than the fifth parameter of the first resource pool
  • the second modulo value is greater than the sixth parameter of the first resource pool.
  • the first resource pool is any one of the multiple resource pools.
  • the UE 1 determines whether the link resource of the first resource pool can be used as a D2D link resource.
  • the UE1 may need to perform similar judgments on other resource pools in the multiple resource pools, for example, the second resource pool, the third resource pool, and the like. If the condition is met, it is determined that the link resources of the resource pool may serve as D2D link resources. When multiple resource pools satisfy the condition, the link resource of one resource pool can be arbitrarily selected as the D2D link resource or the link resource of the most resource pool can be selected as the D2D link resource in other manners. .
  • the first parameter and the second parameter may be obtained by the UE1 from the selection parameter of the at least one resource pool, or may be acquired during the interaction with the base station, or the first parameter and the second parameter may also be pre-written.
  • the UE1 can obtain the fixed parameters of the UE1 directly from the storage module of the UE1.
  • the embodiment of the invention further provides a method for transmitting data between user equipments.
  • the method can be performed by the first user equipment, and the specific steps are as follows:
  • the first user equipment receives link selection policy information sent by the base station, where the link selection policy information is used to indicate a link for receiving data, where the link for receiving data includes a cellular link and a device-to-device D2D link.
  • the first user equipment selects a target link from the cellular link and the D2D link according to the link selection policy information.
  • the first user equipment receives data sent by the second user equipment by using the target link.
  • the base station can acquire the specific conditions of the network (such as a cellular link and The load condition of the D2D link. Therefore, when transmitting data between user equipments, the link selection policy information sent by the base station can be used to indicate which link the user equipment uses when receiving data, so that the user equipment can select more suitable.
  • the link receives data, avoiding the load imbalance of the network system or the waste of network resources due to unreasonable selection of link resources.
  • Embodiments of the present invention provide a method for transmitting data between user equipments.
  • the method can be performed by the first user equipment, and the specific steps are as follows:
  • the base station sends the link selection policy information to the first user equipment, so that the first user equipment selects the target link from the cellular link and the device to the device D2D link according to the link selection policy information, and passes the The target link sends data to the second user equipment, where the link selection policy information is used to indicate a link carrying the data or a mode for indicating a link carrying the data.
  • the base station can acquire the specific conditions of the network (such as the load of the cellular link and the D2D link and the transmission link configured by other base stations around the base station), when transmitting data between the user equipments, Sending link selection policy information to the user equipment by the base station to indicate which link the user equipment uses when transmitting data, so that the user equipment can select a more suitable link to send data, thereby avoiding unreasonable selection of link resources.
  • the resulting network system is overloaded or wastes network resources.
  • the link selection policy information includes indication information for indicating a link that carries the data
  • the base station sends link selection policy information to the first user equipment, including: Sending, by the base station, the link selection policy information including the first indication information, to the first user equipment, to determine that the D2D link is the target link; or Transmitting, by the first user equipment, link selection policy information that does not include first indication information or link selection policy information that includes second indication information, so that the first user equipment determines that the cellular link is the target link.
  • the link selection policy information includes second indication information, where the first user equipment is selected from the cellular link and the D2D link according to the link selection policy information.
  • Selecting the target link includes: obtaining, by the first user equipment, the second indication information from the received link selection policy information, and determining that the cellular link is the target link.
  • the receiving link selection policy information includes third indication information, where the first user equipment uses the link selection policy information from the cellular link and the D2D link. Selecting a target link, including: selecting, by the first user equipment, the received link Obtaining the third indication information in the selection policy information, determining that the cellular link and the D2D link are the target link.
  • the embodiment of the invention further provides a method for transmitting data between user equipments.
  • the method can be performed by the first user equipment, and the specific steps are as follows:
  • the base station sends the link selection policy information to the first user equipment, so that the first user equipment selects the target link from the cellular link and the device to the device D2D link according to the link selection policy information, and passes the The target link receives data sent by the second user equipment, where the link selection policy information is used to indicate a link that receives the data.
  • the base station can acquire the specific conditions of the network (such as the load of the cellular link and the D2D link and the transmission link configured by other base stations around the base station), when transmitting data between the user equipments, Sending link selection policy information to the user equipment by the base station to indicate which link the user equipment uses when receiving data, so that the user equipment can select a more suitable link to receive data, thereby avoiding unreasonable selection of link resources.
  • the resulting network system is overloaded or wastes network resources.
  • the base station sends, to the first user equipment, link selection policy information that includes first indication information, and the first indication information carries a selection parameter of the at least one resource pool
  • the first user equipment is configured to determine resources of the D2D link according to a relationship between a location parameter of the first user equipment and a selection parameter of the at least one resource pool.
  • the first indication information sent by the base station to the first user equipment includes a selection parameter of any one of the first resource pools, where the selection parameter of the first resource pool Include at least one of the third parameter, the fourth parameter, the fifth parameter, and the sixth parameter, so that the first user equipment performs the following steps: latitude coordinate value and longitude coordinate value of the location where the first user equipment is located
  • the modulo processing is performed separately to obtain a first modulo value and a second modulo value; if at least one of the following conditions is met, the link resource of the first resource pool is selected as a resource of the D2D link: the first modulo The value is smaller than the third parameter of the first resource pool; the first modulo value is greater than the fourth parameter of the first resource pool; the second modulo value is smaller than the fifth parameter of the first resource pool; and the second modulo value is greater than the first resource The sixth parameter of the pool.
  • the first user equipment may use the configuration parameter to respectively modulate the dimensional coordinate value and the longitude coordinate value to obtain the first modulo value and the second modulo value, specifically
  • the configuration parameter may include the first parameter and the second parameter, and the first user equipment modulates the dimensional coordinate value of the first user equipment and the first parameter to obtain a first modulo value, and the longitude of the first user equipment.
  • the coordinate value and the second parameter are modulo, and the second modulo value is obtained.
  • the first user equipment may determine a relationship between the first modulo value and the second modulo value and a selection parameter of each resource pool in the multiple resource pools, and determine a link resource of the resource pool that meets the condition as the D2D. Link resource.
  • the link selection policy information includes second indication information, where the base station sends link selection policy information to the first user equipment, where the base station sends the first user equipment to the first user equipment.
  • Link selection policy information including the second indication information, so that the first user equipment determines that the cellular link is the target link.
  • the link selection policy information includes third indication information, where the base station sends link selection policy information to the first user equipment, where the base station sends the first user equipment to the first user equipment.
  • Link selection policy information including the third indication information, so that the first user equipment determines that the cellular link and the D2D link are the target link.
  • the user equipment and the base station according to the embodiment of the present invention are described below with reference to FIG. 6 to FIG. It should be understood that the user equipment and the base station described in FIGS. 6 to 13 can implement the respective steps of the method of transmitting data between the user equipments described in FIGS. 3 to 5, and the duplicated description is appropriately omitted for the sake of brevity.
  • FIG. 6 is a schematic structural diagram of a user equipment 600 according to an embodiment of the present invention.
  • User equipment 600 includes:
  • the receiving module 610 is configured to receive link selection policy information that is sent by the base station, where the link selection policy information is used to indicate a link that carries data or a mode for indicating a link that carries the data, where the bearer
  • the link of the data includes a cellular link and a device-to-device D2D link;
  • the determining module 620 is configured to determine a target link from the cellular link and the D2D link according to the link selection policy information.
  • the sending module 630 is configured to send the data to another user equipment by using the target link.
  • the base station can acquire the specific conditions of the network (such as the load condition of the cellular link and the D2D link), the base station can be used to control the user equipment to transmit data when transmitting data between the user equipments. Which kind of link can control the user equipment to select a more suitable link to transmit data, and avoid the unbalanced load of the network system caused by the unreasonable selection of link resources.
  • the determining module 620 is further configured to: determine whether the user equipment 600 is in the coverage of the base station. Range; if the user equipment 600 is not in coverage of the base station, determining the D2D link as a target link.
  • the link selection policy information received by the receiving module 610 is used to indicate a link that carries the data
  • the determining module 620 is specifically configured to: when the link selection policy is Determining, when the information includes the first indication information, the D2D link is the target link, or determining that the link selection policy information does not include the first indication information or includes the second indication information, The cellular link is the target link.
  • the first indication information carries a D2D link resource of the user equipment 600.
  • the link selection policy information received by the receiving module 610 includes first indication information, and the first indication information carries a D2D link resource of the user equipment 600, where
  • the sending module 630 is specifically configured to: before the determining module 620 selects the D2D link as the target link, report area information of the user equipment 600 to the base station, so that the base station is configured according to the user The area information of the device 600 determines the D2D link resources of the user equipment 600.
  • the receiving module 610 is further configured to: before the transmitting module 630 sends the area information of the user equipment 600 to the base station, receive the area reporting indication information sent by the base station;
  • the determining module 620 is specifically configured to determine the area information of the user equipment 600 according to the parameter included in the area reporting indication information received by the receiving module 610 and the location parameter of the user equipment 600.
  • the area reporting indication information includes at least one of a third parameter, a fourth parameter, a fifth parameter, and a sixth parameter of any one of the plurality of areas
  • the determining module 620 is specifically configured to: obtain a configuration parameter, where the configuration parameter is used to perform modulo processing on the location parameter of the user equipment; and the latitude coordinate value and the longitude coordinate value of the location where the user equipment is located respectively Parameter modulo, obtaining a first modulo value and a second modulo value; if at least one of the following conditions is met, determining that the user equipment is in the first region: the first modulo value is smaller than the third region of the first region The first modulo value is greater than the fourth parameter of the first region; the second modulo value is smaller than the fifth parameter of the first region; and the second modulo value is greater than the sixth parameter of the first region.
  • the configuration parameter includes a first parameter and a second parameter
  • the determining module 620 is specifically configured to: take a latitude coordinate value of the location where the user equipment 600 is located, and the first parameter And obtaining a first modulo value; modulo the longitude coordinate value of the location where the user equipment 600 is located and the second parameter to obtain a second modulo value.
  • the determining module 620 is specifically configured to obtain the configuration parameter from the area reporting indication information sent by the base station.
  • the user equipment 600 further includes: an obtaining module 640, configured to acquire a selection parameter of at least one resource pool.
  • the determining module 620 is further configured to determine resources of the D2D link according to a relationship between a location parameter of the user equipment 600 and a selection parameter of the at least one resource pool.
  • the at least one resource pool includes any one of the first resource pools, where the selection parameters of the first resource pool include a third parameter, a fourth parameter, a fifth parameter, and a sixth parameter.
  • At least one of the determining module 620 is specifically configured to: obtain a configuration parameter, where the configuration parameter is used to perform modulo processing on the location parameter of the user equipment 600; and the latitude coordinate value of the location where the user equipment 600 is located The longitude coordinate value is respectively modulo with the configuration parameter to obtain a first modulo value and a second modulo value; if at least one of the following conditions is met, the user equipment 600 selects a link resource of the first resource pool as the D2D
  • the resource of the link the first modulo value is smaller than the third parameter of the first resource pool; the first modulo value is greater than the fourth parameter of the first resource pool; and the second modulo value is smaller than the fifth parameter of the first resource pool;
  • the second modulo value is greater than the sixth parameter of the first resource pool.
  • the configuration parameter includes a first parameter and a second parameter
  • the determining module 620 is specifically configured to: take a latitude coordinate value of the location where the user equipment 600 is located, and the first parameter And obtaining a first modulo value; modulo the longitude coordinate value of the location where the user equipment 600 is located and the second parameter to obtain a second modulo value.
  • the acquiring module 640 is further configured to: obtain the configuration parameter from the first indication information, or when the user equipment 600 is not in the coverage of the base station, Obtain the configuration parameters in the configured information.
  • the acquiring module 640 is specifically configured to: obtain, by using the first indication information, a selection parameter of the at least one resource pool, or the user equipment 600 is not in the base station. Covering the selection parameter of the at least one resource pool from the pre-configured information.
  • the link selection policy information is used to indicate that the number is carried.
  • the determining module 620 is specifically configured to: when the link selection policy information includes resources of the D2D link, determine whether the state of the cellular link meets a preset condition; Determining, by the preset condition, that the D2D link is the target link; if the state of the cellular link does not meet a preset condition, determining that the cellular link is the target chain road.
  • the determining module 620 is specifically configured to: if the user equipment 600 meets at least one of the following conditions, determine that the state of the cellular link meets the preset condition: The T310 or T311 or T301 timer of the user equipment 600 is in an operating state; the link quality RSRP value of the user equipment 600 is lower than a first threshold; and the link quality RSRQ value of the user equipment 600 is lower than a second threshold.
  • the sending module 630 is specifically configured to: send, by using an access protocol layer of the user equipment 600, an upper indication information to an upper layer of the access protocol layer, to indicate the access.
  • the upper layer of the protocol layer transmits data to the other user equipment through the target link.
  • the user equipment 600 further includes: a setting module 650, configured to set a bearer on the non-target link for transmitting the data as an unavailable bearer, and does not respond to the non-target Bearer request for transmitting the data on the link
  • the data is car versus other V2X data.
  • FIG. 7 is a schematic structural diagram of a user equipment 700 according to an embodiment of the present invention.
  • User equipment 700 includes:
  • the receiving module 710 is configured to receive link selection policy information sent by the base station, where the link selection policy information is used to indicate a link for receiving data, where the link that receives the data includes a cellular link and a device-to-device D2D. link;
  • a determining module 720 configured to select a target link from the cellular link and the D2D link according to the link selection policy information
  • the receiving module 710 is further configured to receive, by using the target link, the data sent by the second user equipment.
  • the link selection policy information sent by the base station can be received when the data is transmitted between the user equipments.
  • the link selection policy information sent by the base station can be received when the data is transmitted between the user equipments.
  • the link selection policy information includes second indication information, where the determining module 720 is specifically configured to: obtain, by using the link selection policy information received by the receiving module 710.
  • the second indication information determines that the cellular link is the target link.
  • the receiving link selection policy information includes third indication information, where the determining module 720 is specifically configured to: obtain the link selection policy information received by the receiving module 710.
  • the third indication information determines that the cellular link and the D2D link are the target link.
  • FIG. 8 is a schematic structural diagram of a base station 800 according to an embodiment of the present invention.
  • Base station 800 includes:
  • the sending module 810 is configured to send link selection policy information to the first user equipment, so that the first user equipment selects policy information from the cellular link and the device-to-device D2D link according to the link selection policy information. Selecting a target link, and transmitting data to the second user equipment by using the target link, where the link selection policy information is used to indicate a link carrying the data or a chain indicating the data is carried. The way the path is selected, the link carrying the data includes a cellular link and a D2D link.
  • the base station can acquire the specific conditions of the network (such as the load condition of the cellular link and the D2D link), the base station can be used to control the user equipment to transmit data when transmitting data between the user equipments. Which kind of link can control the user equipment to select a more suitable link to transmit data, and avoid the unbalanced load of the network system caused by the unreasonable selection of link resources.
  • the link selection policy information includes indication information for indicating a link that carries the data
  • the sending module 810 is specifically configured to: send the first user equipment to include a link indicating policy information indicating that the first user equipment determines that the D2D link is the target link; or sending a link that does not include the first indication information to the first user equipment Selecting policy information or link selection policy information including the second indication information, so that the first user equipment determines that the cellular link is the target link.
  • the sending module 810 is specifically configured to send, to the first user equipment, link selection policy information that includes first indication information, where the first indication information carries the at least one resource. a selection parameter of the pool, so that the first user equipment is used according to the first The relationship between the location parameter of the user equipment and the selection parameter of the at least one resource pool determines the resources of the D2D link.
  • the first indication information sent by the sending module 810 to the first user equipment includes a selection parameter of any one of the first resource pools, where the first resource pool is
  • the selection parameter includes at least one of the third parameter, the fourth parameter, the fifth parameter, and the sixth parameter, so that the first user equipment performs the following steps: latitude coordinate values and longitude of the location where the first user equipment is located
  • the coordinate values are respectively subjected to modulo processing to obtain a first modulo value and a second modulo value; if at least one of the following conditions is met, the link resource of the first resource pool is selected as a resource of the D2D link:
  • the modulo value is smaller than the third parameter of the first resource pool; the first modulo value is greater than the fourth parameter of the first resource pool; the second modulo value is smaller than the fifth parameter of the first resource pool;
  • the sixth parameter of a resource pool is
  • the link selection policy information includes first indication information, and the first indication information carries a D2D link resource of the first user equipment, and the receiving module 810 is further configured to: Receiving the area information of the first user equipment that is reported by the first user equipment; the base station 800 further includes: a determining module 830, configured to determine, according to the area information of the first user equipment, the first user equipment D2D link resources.
  • the sending module 820 is further configured to: before the receiving module 810 receives the area information of the first user equipment reported by the first user equipment, to the first user The device sending area reports the indication information, so that the first user equipment determines the area information of the first user equipment according to the parameter included in the area reporting indication information and the location parameter of the first user equipment.
  • the link selection policy information is used to indicate a selection manner of a link that carries the data
  • the sending module 820 is further configured to: send, to the first user equipment, the The link selection policy information of the resource of the D2D link, so that the first user equipment determines the target link according to whether the state of the cellular link meets a preset condition.
  • the data is car versus other V2X data.
  • FIG. 9 is a schematic structural diagram of a base station 900 according to an embodiment of the present invention.
  • the base station 900 includes:
  • the sending module 910 is configured to send link selection policy information to the first user equipment, so that the first user equipment selects a target chain from the cellular link and the device-to-device D2D link according to the link selection policy information. And receiving, by the target link, data sent by the second user equipment, where the link selection policy information is used to indicate a link that receives the data.
  • the base station can acquire the specific conditions of the network (such as the load of the cellular link and the D2D link and the transmission link configured by other base stations around the base station), the data can be transmitted between the user equipments.
  • the base station sends the link selection policy information to the user equipment to indicate which link the user equipment uses when receiving the data, so that the user equipment can select a more suitable link to receive the data, thereby avoiding the unreasonable selection of the link resources.
  • the load of the network system is not balanced or the network resources are wasted.
  • the link selection policy information includes first indication information
  • the sending module 910 is specifically configured to: send, to the first user equipment, a link selection that includes the first indication information. Policy information, so that the first user equipment determines that the D2D link is the target link.
  • the link selection policy information includes second indication information, where the sending module 910 is specifically configured to: send, to the first user equipment, a link selection that includes the second indication information. Policy information, such that the first user equipment determines that the cellular link is the target link.
  • the link selection policy information includes third indication information, where the sending module 910 is specifically configured to: send, to the first user equipment, a link selection that includes the third indication information. Policy information, such that the first user equipment determines that the cellular link and the D2D link are the target link.
  • FIG. 10 is a schematic structural diagram of a user equipment 1000 according to an embodiment of the present invention.
  • User equipment 1000 includes:
  • a memory 1010 configured to store a program
  • the transceiver 1020 is configured to receive, according to the program, the link selection policy information sent by the base station, where the link selection policy information is used to indicate a link carrying data or used to indicate a bearer.
  • the manner of selecting a link of the data, wherein the link carrying the data comprises a cellular link and a device-to-device D2D link;
  • the processor 1030 is configured to determine a target link from the cellular link and the D2D link according to the link selection policy information when the program is executed.
  • the transceiver 1020 is further configured to send the data to another user equipment by using the target link.
  • the base station can acquire the specific conditions of the network (such as the load condition of the cellular link and the D2D link), the base station can be used when transmitting data between the user equipments. Controls which link the user equipment uses when transmitting data, so that the user equipment can be controlled to select a more suitable link to transmit data, thereby avoiding unbalanced load of the network system caused by unreasonable selection of link resources.
  • the processor 1030 is further configured to: determine whether the user equipment 1000 is in the coverage of the base station. Range; if the user equipment 1000 is not in coverage of the base station, determining the D2D link as a target link.
  • the link selection policy information received by the transceiver 1020 includes first indication information, and the first indication information carries a D2D link resource of the user equipment 1000, where The transceiver 1020 is specifically configured to: before the processor 1030 selects the D2D link as the target link, report area information of the user equipment 1000 to the base station, so that the base station is configured according to the user The area information of the device 1000 determines the D2D link resources of the user equipment 1000.
  • the transceiver 1020 is further configured to: before the transceiver 1020 sends the area information of the user equipment 1000 to the base station, receive the area reporting indication information sent by the base station;
  • the processor 1030 is specifically configured to determine area information of the user equipment 1000 according to parameters included in the area reporting indication information received by the transceiver 1020 and location parameters of the user equipment 1000.
  • the area reporting indication information includes at least one of a third parameter, a fourth parameter, a fifth parameter, and a sixth parameter of any one of the plurality of areas
  • the processor 1030 is specifically configured to: obtain a configuration parameter, where the configuration parameter is used to perform modulo processing on the location parameter of the user equipment; and the latitude coordinate value and the longitude coordinate value of the location where the user equipment is located respectively
  • the parameter is modulo, and the first modulo value and the second modulo value are obtained; if at least one of the following conditions is met, determining that the user equipment is in the first area: a modulo value is smaller than a third parameter of the first region; the first modulo value is greater than the fourth parameter of the first region; the second modulo value is smaller than the fifth parameter of the first region; and the second modulo value is greater than the first region
  • the sixth parameter is specifically configured to: obtain a configuration parameter, where the configuration parameter is used to perform modulo processing on the location parameter of the user equipment; and the latitude coordinate value and the longitude coordinate value
  • the configuration parameter includes a first parameter and a second parameter
  • the processor 1030 is specifically configured to: take a latitude coordinate value of a location where the user equipment 1000 is located, and the first parameter And obtaining a first modulo value; modulo the longitude coordinate value of the location where the user equipment 1000 is located and the second parameter to obtain a second modulo value.
  • the processor 1030 is specifically configured to obtain the configuration parameter from the area reporting indication information sent by the base station.
  • the processor 1030 is further configured to acquire a selection parameter of at least one resource pool; the processor 1030 It is further configured to determine resources of the D2D link according to a relationship between a location parameter of the user equipment 1000 and a selection parameter of at least one resource pool.
  • the at least one resource pool includes any one of the first resource pools, where the selection parameters of the first resource pool include a third parameter, a fourth parameter, a fifth parameter, and a sixth parameter.
  • At least one of the processor 1030 is configured to: obtain a configuration parameter, where the configuration parameter is used to perform modulo processing on a location parameter of the user equipment 1000; and a latitude coordinate value of the location where the user equipment 1000 is located The longitude coordinate value is respectively modulo with the configuration parameter to obtain a first modulo value and a second modulo value; if at least one of the following conditions is met, the user equipment 1000 selects a link resource of the first resource pool as the D2D
  • the resource of the link the first modulo value is smaller than the third parameter of the first resource pool; the first modulo value is greater than the fourth parameter of the first resource pool; and the second modulo value is smaller than the fifth parameter of the first resource pool;
  • the second modulo value is greater than the sixth parameter of the first resource pool.
  • the configuration parameter includes a first parameter and a second parameter
  • the processor 1030 is specifically configured to: take a latitude coordinate value of a location where the user equipment 1000 is located, and the first parameter And obtaining a first modulo value; modulo the longitude coordinate value of the location where the user equipment 1000 is located and the second parameter to obtain a second modulo value.
  • the processor 1030 is specifically configured to: obtain, by using the first indication information, a selection parameter of the at least one resource pool, or the user equipment 1000 The selection parameter of the at least one resource pool is obtained from the pre-configured information without being in the coverage of the base station.
  • the link selection policy information is used to indicate a selection manner of a link that carries the data
  • the processor 1030 is specifically configured to: when the link selection policy information includes the Determining whether the state of the cellular link meets a preset condition when the resource of the D2D link is available; if the state of the cellular link meets a preset condition, determining that the D2D link is the target link; The state of the cellular link does not satisfy the preset condition, and the cellular link is determined to be the target link.
  • the processor 1030 is specifically configured to: if the user equipment 1000 meets at least one of the following conditions, determine that the state of the cellular link meets the preset condition: The T310 or T311 or T301 timer of the user equipment 1000 is in an operating state; the link quality RSRP value of the user equipment 1000 is lower than a first threshold; and the link quality RSRQ value of the user equipment 1000 is lower than a second threshold.
  • the transceiver 1020 is specifically configured to: send, by using an access protocol layer of the user equipment 1000, an upper indication information, to an upper layer of the access protocol layer, to indicate the access.
  • the upper layer of the protocol layer transmits data to the other user equipment through the target link.
  • the user equipment 1000 further includes: a setting module 650, configured to set a bearer for transmitting the data on a non-target link as an unavailable bearer, and does not respond to the non-target Bearer request for transmitting the data on the link
  • the data is car versus other V2X data.
  • FIG. 11 is a schematic structural diagram of a user equipment 1100 according to an embodiment of the present invention.
  • User equipment 1100 includes:
  • the transceiver 1120 is configured to receive, according to the program, the link selection policy information sent by the base station, where the link selection policy information is used to indicate a link for receiving data, where The link of data includes a cellular link and a device-to-device D2D link;
  • a processor 1130 when the program is executed, the processor 1130 is configured to select a target link from the cellular link and the D2D link according to the link selection policy information;
  • the transceiver 1120 is further configured to receive, by using the target link, the data sent by the second user equipment.
  • the base station can acquire the specific conditions of the network (such as a cellular link and The load condition of the D2D link. Therefore, when transmitting data between user equipments, the link selection policy information sent by the base station can be used to indicate which link the user equipment uses when receiving data, so that the user equipment can select more suitable.
  • the link receives data, avoiding the load imbalance of the network system or the waste of network resources due to unreasonable selection of link resources.
  • the link selection policy information includes first indication information, where the processor 1130 is specifically configured to: obtain, by using the link selection policy information received by the transceiver 1120. An indication information is determined to use the D2D link as a target link.
  • the link selection policy information includes second indication information, where the processor 1130 is specifically configured to: obtain, by using the link selection policy information received by the transceiver 1120.
  • the second indication information determines that the cellular link is the target link.
  • the receiving link selection policy information includes third indication information, where the processor 1130 is specifically configured to: obtain the link selection policy information received by the transceiver 1120.
  • the third indication information determines that the cellular link and the D2D link are the target link.
  • FIG. 12 is a schematic structural diagram of a base station 1200 according to an embodiment of the present invention.
  • the base station 1200 includes:
  • a memory 1210 configured to store a program
  • the transceiver 1220 is configured to send, to the first user equipment, link selection policy information, when the program is executed, so that the first user equipment selects policy information according to the link, Selecting a target link in the device-to-device D2D link, and transmitting data to the second user equipment by using the target link, where the link selection policy information is used to indicate that the data is carried
  • the link or the means for indicating the link carrying the data, the link carrying the data includes a cellular link and a D2D link.
  • the base station can acquire the specific conditions of the network (such as the load condition of the cellular link and the D2D link), the base station can be used to control the user equipment to transmit data when transmitting data between the user equipments. Which kind of link can control the user equipment to select a more suitable link to transmit data, and avoid the unbalanced load of the network system caused by the unreasonable selection of link resources.
  • the link selection policy information includes indication information for indicating a link that carries the data
  • the transceiver 1220 is specifically configured to: send the first user equipment to include a link selection policy information indicating information, so that the first user equipment determines that the D2D link is the target link; or sending to the first user equipment does not include The link selection policy information of the first indication information or the link selection policy information of the second indication information, so that the first user equipment determines that the cellular link is the target link.
  • the transceiver 1220 is specifically configured to send, to the first user equipment, link selection policy information that includes first indication information, where the first indication information carries the at least one resource.
  • the selection parameter of the pool so that the first user equipment determines the resource of the D2D link according to the relationship between the location parameter of the first user equipment and the selection parameter of the at least one resource pool.
  • the first indication information that is sent by the transceiver 1220 to the first user equipment includes a selection parameter of any one of the first resource pools, where the first resource pool is
  • the selection parameter includes at least one of the third parameter, the fourth parameter, the fifth parameter, and the sixth parameter, so that the first user equipment performs the following steps: latitude coordinate values and longitude of the location where the first user equipment is located
  • the coordinate values are respectively subjected to modulo processing to obtain a first modulo value and a second modulo value; if at least one of the following conditions is met, the link resource of the first resource pool is selected as a resource of the D2D link:
  • the modulo value is smaller than the third parameter of the first resource pool; the first modulo value is greater than the fourth parameter of the first resource pool; the second modulo value is smaller than the fifth parameter of the first resource pool;
  • the sixth parameter of a resource pool is
  • the link selection policy information includes first indication information, and the first indication information carries a D2D link resource of the first user equipment, and the transceiver 1220 is further configured to: And receiving, by the first user equipment, area information of the first user equipment, where the base station 1200 further includes: a processor 1230, configured to determine, according to the area information of the first user equipment, the first user equipment D2D link resources.
  • the transceiver 1220 is further configured to send an area reporting indication to the first user equipment before receiving the area information of the first user equipment reported by the first user equipment. And the information, so that the first user equipment determines the area information of the first user equipment according to the parameter included in the area reporting indication information and the location parameter of the first user equipment.
  • the link selection policy information is used to indicate a selection manner of a link that carries the data
  • the transceiver 1220 is further configured to: send, to the first user equipment, the The link selection policy information of the resource of the D2D link, so that the first user equipment determines the target link according to whether the state of the cellular link meets a preset condition.
  • the data is car versus other V2X data.
  • FIG. 13 is a schematic structural diagram of a base station 1300 according to an embodiment of the present invention.
  • the base station 1300 includes:
  • a memory 1310 configured to store a program
  • the base station can acquire the specific conditions of the network (such as the load of the cellular link and the D2D link and the transmission link configured by other base stations around the base station), the data can be transmitted between the user equipments.
  • the base station sends the link selection policy information to the user equipment to indicate which link the user equipment uses when receiving the data, so that the user equipment can select a more suitable link to receive the data, thereby avoiding the unreasonable selection of the link resources.
  • the load of the network system is not balanced or the network resources are wasted.
  • the link selection policy information includes first indication information
  • the transmitter 1320 is specifically configured to: send, to the first user equipment, a link selection that includes the first indication information. Policy information, so that the first user equipment determines that the D2D link is the target link.
  • the link selection policy information includes second indication information, where the transmitter 1320 is specifically configured to: send, to the first user equipment, a link selection that includes the second indication information. Policy information, such that the first user equipment determines that the cellular link is the target link.
  • the link selection policy information includes third indication information, where the transmitter 1320 is specifically configured to: send, to the first user equipment, a link selection that includes the third indication information. Policy information, such that the first user equipment determines that the cellular link and the D2D link are the target link.
  • the size of the sequence numbers of the above processes does not mean the order of execution, and the order of execution of each process should be determined by its function and internal logic, and should not be The implementation process of the embodiments of the present invention constitutes any limitation.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • the functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product.
  • the technical solution of the present invention which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including
  • the instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

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Abstract

本发明实施例提供一种在用户设备之间传输数据的方法,用户设备和基站,该方法包括:第一用户设备接收基站发送的链路选择策略信息,链路选择策略信息用于指示承载数据的链路或者用于指示承载数据的链路的选择方式,其中,承载数据的链路包括蜂窝链路和设备对设备D2D链路;第一用户设备根据链路选择策略信息,从蜂窝链路或者D2D链路中选择目标链路;第一用户设备通过目标链路向第二用户设备发送数据。本发明实施例能够根据网络情况来控制用户设备使用蜂窝链路或者D2D链路传输数据,能够合理利用网络资源,提升网络系统的性能。

Description

在用户设备之间传输数据的方法、用户设备和基站 技术领域
本发明涉及通信领域,并且更具体地,涉及一种在用户设备之间传输数据的方法、用户设备和基站。
背景技术
在现有技术中,用户设备(User Equipment,UE)之间既可以通过蜂窝链路进行通信(如图1所示),也可以通过设备对设备(Device-to-Device,D2D)链路进行通信(如图2所示)。具体来说,现有技术中是由UE自己来确定使用蜂窝链路还是D2D链路与另外一个UE之间进行通信。但是,由于UE不能根据网络的具体情况(如蜂窝链路和D2D链路的负载情况)来合理的选择使用哪种链路与另一个UE进行通信,因此可能会造成网络系统的负载不均衡,进而影响网络系统的正常工作。
发明内容
本申请提出一种在用户设备之间传输数据的方法,用户设备和基站,以合理分配网络负载。
第一方面,提供了一种在用户设备之间传输数据的方法,包括:第一用户设备接收基站发送的链路选择策略信息,所述链路选择策略信息用于指示承载所述数据的链路或者用于指示承载所述数据的链路的选择方式,其中,承载所述数据的链路包括蜂窝链路和设备对设备D2D链路;所述第一用户设备根据所述链路选择策略信息,从所述蜂窝链路和所述D2D链路中选择目标链路;所述第一用户设备通过所述目标链路向所述第二用户设备发送所述数据。
上述第一用户设备在接收基站发送的链路选择策略信息之前,可以先向基站发送请求消息,该请求消息用于指示或者请求基站为第一用户设备发送链路选择策略信息。
在现有技术中,用户设备之间在传输数据时是由用户设备自身来决定采用蜂窝链路还是D2D链路向另一个用户设备传输数据,但是由于用户设备不能根据网络的具体情况(例如蜂窝链路和D2D链路的负载情况)确定使 用哪种链路传输数据,当大量的用户设备都采用蜂窝链路传输数据时,很可能造成蜂窝链路的拥塞。因此,现有技术中由用户设备自身来决定采用何种链路在用户之间传输数据可能会造成网络系统的负载不均衡,并且还有可能对其他的用户设备造成一定的干扰。而在本申请的方案中,由于基站可以获取网络的具体情况(如蜂窝链路和D2D链路的负载情况以及基站周围其他基站所配置传输链路),因此,在用户设备之间传输数据时,用户设备可以通过接收基站发送的链路选择策略信息来指示发送数据时采用何种链路,使得用户设备能够选择更合适的链路来发送数据,避免了由于链路资源的选择不合理而导致的网络系统的负载不均衡或者网络资源的浪费。
结合第一方面,在第一方面的第一种实现方式中,所述第一用户设备接收所述基站发送的链路选择策略信息之前,所述方法还包括:所述第一用户设备确定所述第一用户设备是否处于所述基站的覆盖范围;如果所述第一用户设备不在所述基站的覆盖范围,所述第一用户设备确定所述D2D链路作为目标链路。
结合第一方面,在第一方面的第二种实现方式中,所述链路选择策略信息用于指示承载所述数据的链路,所述第一用户设备根据所述链路选择策略信息,从所述蜂窝链路和所述D2D链路中选择目标链路,包括:当所述链路选择策略信息包含第一指示信息时,所述第一用户设备确定所述D2D链路为所述目标链路,或者,当所述链路选择策略信息不包含所述第一指示信息或者包含第二指示信息时,所述第一用户设备确定所述蜂窝链路为所述目标链路。
上述第一指示信息可以是包含D2D链路资源的指示信息,当第一用户设备接收到第一指示信息后就可以从中获取D2D链路资源,从而确定D2D链路为目标链路。上述第二指示信息可以是不包含D2D链路资源的指示信息,这样,当第一用户设备在第二指示信息中不能获取D2D链路资源时确定蜂窝链路为目标链路,或者,第二指示信息直接用来指示第一用户设备选择蜂窝链路作为目标链路。
结合第一方面的第二种实现方式,在第一方面的第三种实现方式中,所述第一指示信息携带所述第一用户设备的D2D链路资源。
结合第一方面的第三种实现方式,在第一方面的第四种实现方式中,所述链路选择策略信息包含第一指示信息,所述第一用户设备在选择所述D2D 链路作为目标链路之前,所述方法还包括:所述第一用户设备向基站上报所述第一用户设备的区域信息,以便于所述基站根据所述第一用户设备的区域信息确定所述第一用户设备的D2D链路资源。应理解,基站确定第一用户设备的D2D链路资源的方式可以有多种,例如,基站可以根据第一用户设备的区域信息从多个资源池中选择一个资源池的链路资源作为第一用户设备的D2D链路资源。
根据用户设备的区域信息为用户设备分配D2D链路资源可以为用户设备分配更合适的D2D资源,使得D2D链路资源在小区内得到更合理的分配。
结合第一方面的第四种实现方式,在第一方面的第五种实现方式中,所述第一用户设备向所述基站上报所述第一用户设备的区域信息之前,所述方法还包括:所述第一用户设备接收基站发送的区域上报指示信息;所述第一用户设备根据所述区域上报指示信息包含的参数和所述第一用户设备的位置参数确定所述第一用户设备的区域信息。第一用户设备的位置参数可以是GPS位置信息或者由北斗导航定位系统确定的位置信息或者其它能表征第一用户位置的信息。
结合第一方面的第五种实现方式,在第一方面的第六种实现方式中,所述区域上报指示信息包含多个区域中的任意一个第一区域的第三参数、第四参数、第五参数以及第六参数中的至少一个,所述第一用户设备根据所述区域上报指示信息包含的参数和所述第一用户设备的位置参数确定所述第一用户设备的区域信息,包括:所述第一用户设备获取配置参数,所述配置参数用于对所述第一用户设备的位置参数进行取模处理;所述第一用户设备将所述第一用户设备所在位置的纬度坐标值和经度坐标值分别与所述配置参数取模,得到第一取模值和第二取模值;若满足下列条件中的至少一个,则确定所述第一用户设备处于第一区域:第一取模值小于第一区域的第三参数;第一取模值大于第一区域的第四参数;第二取模值小于第一区域的第五参数;第二取模值大于第一区域的第六参数。
结合第一方面的第六种实现方式,在第一方面的第七种实现方式中,所述配置参数包括第一参数和第二参数,所述第一用户设备将所述第一用户设备所在位置的纬度坐标值和经度坐标值分别与所述配置参数取模,得到第一取模值和第二取模值,包括:所述第一用户设备将所述第一用户设备所在位置的纬度坐标值与所述第一参数取模,得到第一取模值;所述第一用户设备 将所述第一用户设备所在位置的经度坐标值与所述第二参数取模,得到第二取模值。
结合第一方面的第六种或者第七种实现方式,在第一方面的第八种实现方式中,所述第一用户设备获取配置参数,包括:所述第一用户设备从所述基站发送的区域上报指示信息中获取所述配置参数。
结合第一方面,以及第一方面的第一种至第二种实现方式中的任意一种,在第一方面的第九种实现方式中,所述第一用户设备确定所述D2D链路为所述目标链路之后,所述方法还包括:所述第一用户设备获取至少一个资源池的选择参数;所述第一用户设备根据所述第一用户设备的位置参数和至少一个资源池的选择参数的关系确定所述D2D链路的资源。
结合第一方面的第九种实现方式,在第一方面的第十种实现方式中,所述至少一个资源池中包括任意一个第一资源池,所述第一资源池的选择参数包括第三参数、第四参数、第五参数以及第六参数中的至少一个,所述第一用户设备根据所述第一用户设备的位置参数和所述至少一个资源池的选择参数的关系确定D2D链路的资源,包括:所述第一用户设备获取配置参数,所述配置参数用于对所述第一用户设备的位置参数进行取模处理;所述第一用户设备将所述第一用户设备所在位置的纬度坐标值和经度坐标值分别与所述配置参数取模,得到第一取模值和第二取模值;若满足下列条件中的至少一个,所述第一用户设备选择第一资源池的链路资源作为D2D链路的资源:第一取模值小于第一资源池的第三参数;第一取模值大于第一资源池的第四参数;第二取模值小于第一资源池的第五参数;第二取模值大于第一资源池的第六参数。
结合第一方面的第十种实现方式,在第一方面的第十一种实现方式中,所述配置参数包括第一参数和第二参数,所述第一用户设备将所述第一用户设备所在位置的纬度坐标值和经度坐标值分别与所述配置参数取模,得到第一取模值和第二取模值,包括:所述第一用户设备将所述第一用户设备所在位置的纬度坐标值与所述第一参数取模,得到第一取模值;所述第一用户设备将所述第一用户设备所在位置的经度坐标值与所述第二参数取模,得到第二取模值。
结合第一方面的第十种或者第十一种实现方式,在第一方面的第十二种实现方式中,所述第一用户设备获取配置参数,包括:所述第一用户设备从 所述第一指示信息中获取所述配置参数,或者,所述第一用户设备不在所述基站的覆盖范围,所述第一用户设备从预先配置的信息中获取所述配置参数。
结合第一方面的第九种实现方式,在第一方面的第十三种实现方式中,所述第一用户设备获取至少一个资源池的选择参数,包括:所述用户设备从所述第一指示信息中获取所述至少一个资源池的选择参数,或者,所述第一用户设备不处于所述基站的覆盖范围,所述第一用户设备从预先配置的信息中获取所述至少一个资源池的选择参数。
结合第一方面,在第一方面的第十四种实现方式中,所述链路选择策略信息用于指示承载所述数据的链路的选择方式,所述第一用户设备根据所述链路选择策略信息,从所述蜂窝链路或者所述D2D链路中选择目标链路,包括:当所述链路选择策略信息包含所述D2D链路的资源时,所述第一用户设备确定所述蜂窝链路的状态是否满足预设条件;如果所述蜂窝链路的状态满足预设条件,所述第一用户设备确定所述D2D链路为所述目标链路;如果所述蜂窝链路的状态不满足预设条件,所述第一用户设备确定所述蜂窝链路为所述目标链路。
结合第一方面的第十四种实现方式,在第一方面的第十五种实现方式中,所述第一用户设备确定所述蜂窝链路的状态是否满足预设条件,包括:如果所述第一用户设备满足下列条件中的至少一个,则确定所述蜂窝链路的状态满足预设条件:所述第一用户设备的T310或T311或T301定时器处于运行状态;所述第一用户设备的链路质量RSRP值低于第一阈值;所述第一用户设备的链路质量RSRQ值低于第二阈值。
当链路选择策略信息包含所述D2D链路的资源时并不一定要确定D2D链路为目标链路,而是在确定目标链路之前还要对预设条件进行判断。也就是说当链路选择策略信息包含D2D链路资源时并不能直接确定D2D链路就是目标链路,而是对蜂窝链路的情况进行判断,如果蜂窝链路的质量较差或者负载较多这时候才确定D2D链路为目标链路,而当蜂窝链路的质量较好或者负载较低时仍然确定蜂窝链路为目标链路,这样就可以根据蜂窝链路的具体情况来更合理的选择链路资源。
结合第一方面,以及第一方面的第一种至第十五种实现方式中的任意一种,在第一方面的第十六种实现方式中,所述第一用户设备通过所述目标链 路向第二用户设备发送数据,包括:所述第一用户设备的接入协议层向所述接入协议层的上层发送第三指示信息,以指示所述接入协议层的上层通过所述目标链路向第二用户设备发送数据。
接入协议层的上层可以是UE的接入协议层之上的层,例如,IP层、非接入协议层、数据传输层、应用层等,通过这些层可以向第二用户设备发送数据。
结合第一方面,以及第一方面的第一种至第十六种实现方式中的任意一种,在第一方面的第十七种实现方式中,所述第一用户设备通过所述目标链路向第二用户设备发送数据,包括:所述第一用户设备将非目标链路上用于传输所述数据的承载设置为不可用承载,并且不响应所述非目标链路上用于传输所述数据的承载请求。
结合第一方面,以及第一方面的第一种至第十七种实现方式中的任意一种,在第一方面的第十八种实现方式中,所述数据为车对其它V2X数据。
第二方面,提供了一种在用户设备之间传输数据的方法,包括:第一用户设备接收基站发送的链路选择策略信息,所述链路选择策略信息用于指示接收数据的链路,其中,接收所述数据的链路包括蜂窝链路和设备对设备D2D链路;所述第一用户设备根据所述链路选择策略信息,从所述蜂窝链路和所述D2D链路中选择目标链路;所述第一用户设备通过所述目标链路接收第二用户设备发送的所述数据。
在本申请的方案中,由于基站可以获取网络的具体情况(如蜂窝链路和D2D链路的负载情况以及基站周围其他基站所配置传输链路),因此,在用户设备之间传输数据时可以通过接收基站发送的链路选择策略信息来指示用户设备在接收数据时采用何种链路,使得用户设备能够选择更合适的链路来接收数据,避免了由于链路资源的选择不合理而导致的网络系统的负载不均衡或者网络资源的浪费。
结合第二方面,在第二方面的第一种实现方式中,所述链路选择策略信息包括第一指示信息,所述第一用户设备根据所述链路选择策略信息,从所述蜂窝链路和所述D2D链路中选择目标链路,包括:所述第一用户设备从接收到的所述链路选择策略信息中获取第一指示信息,确定所述D2D链路作为目标链路。上述第一指示信息可以是包含D2D链路资源的指示信息,当第一用户设备接收到第一指示信息之后就可以从中获取D2D链路资源, 从而确定D2D链路为目标链路。
结合第二方面,在第二方面的第二种实现方式中,所述链路选择策略信息包括第二指示信息,所述第一用户设备根据所述链路选择策略信息,从所述蜂窝链路和所述D2D链路中选择目标链路,包括:所述第一用户设备从接收到的所述链路选择策略信息中获取第二指示信息,确定所述蜂窝链路为所述目标链路。上述第二指示信息可以是不包含D2D链路资源的指示信息,这样,当第一用户设备在第二指示信息中不能获取D2D链路资源从而确定蜂窝链路为目标链路,或者,第二指示信息直接用来指示第一用户设备选择蜂窝链路作为目标链路。
结合第二方面,在第二方面的第三种实现方式中,所述接收链路选择策略信息包括第三指示信息,所述第一用户设备根据所述链路选择策略信息,从所述蜂窝链路和所述D2D链路中选择目标链路,包括:所述第一用户设备从接收到的所述链路选择策略信息中获取第三指示信息,确定所述蜂窝链路和所述D2D链路为所述目标链路。应理解,第一用户设备在接收数据时可以选择依靠蜂窝链路和D2D链路来共同接收数据。
第三方面,提供一种在用户设备之间传输数据的方法,包括:基站向第一用户设备发送链路选择策略信息,以便于所述第一用户设备根据所述链路选择策略信息,从蜂窝链路和设备对设备D2D链路中选择目标链路,并通过所述目标链路向第二用户设备发送数据,其中,所述链路选择策略信息用于指示承载所述数据的链路或者用于指示承载所述数据的链路的选择方式。
在本申请的方案中,由于基站可以获取网络的具体情况(如蜂窝链路和D2D链路的负载情况以及基站周围其他基站所配置传输链路),因此,在用户设备之间传输数据时可以通过基站向用户设备发送链路选择策略信息来指示用户设备在发送数据时采用何种链路,使得用户设备能够选择更合适的链路来发送数据,避免了由于链路资源的选择不合理而导致的网络系统的负载不均衡或者网络资源的浪费。
结合第三方面,在第三方面的第一种实现方式中,所述链路选择策略信息包含用于指示承载所述数据的链路的指示信息,所述基站向所述第一用户设备发送链路选择策略信息,包括:所述基站向所述第一用户设备发送包含第一指示信息的链路选择策略信息,以便于所述第一用户设备确定所述D2D链路为所述目标链路;或者,所述基站向所述第一用户设备发送不包含第一 指示消息的链路选择策略信息或者包含第二指示信息的链路选择策略信息,以便于所述第一用户设备确定所述蜂窝链路为所述目标链路。
具体来说,基站在接收到用户设备的请求消息之后,可以根据网络的具体情况(如蜂窝链路和D2D链路的负载情况)来生成链路选择策略消息并发送给用户设备,这样就可以指示用户设备选择更合适的链路来发送数据,避免了由于链路资源的选择不合理而导致的网络系统的负载不均衡或者网络资源的浪费。
结合第三方面的第一种实现方式,在第三方面的第二种实现方式中,所述基站向所述第一用户设备发送包含第一指示信息的链路选择策略信息,且所述第一指示信息携带所述至少一个资源池的选择参数,以便于所述第一用户设备根据所述第一用户设备的位置参数和所述至少一个资源池的选择参数的关系确定所述D2D链路的资源。
结合第三方面的第二种实现方式,在第三方面的第三种实现方式中,所述基站向所述第一用户设备发送的所述第一指示信息中包含任意一个第一资源池的选择参数,其中,所述第一资源池的选择参数包括第三参数、第四参数、第五参数以及第六参数中的至少一个,以便于所述第一用户设备执行以下步骤:将所述第一用户设备所在位置的纬度坐标值和经度坐标值分别进行取模处理,得到第一取模值和第二取模值;若满足下列条件中的至少一种,则选择第一资源池的链路资源作为D2D链路的资源:第一取模值小于第一资源池的第三参数;第一取模值大于第一资源池的第四参数;第二取模值小于第一资源池的第五参数;第二取模值大于第一资源池的第六参数。
结合第三方面的第一种实现方式,在第三方面的第四种实现方式中,所述链路选择策略信息包含第一指示信息,且所述第一指示信息携带所述第一用户设备的D2D链路资源,在所述第一用户设备选择所述D2D链路作为所述目标链路之前,所述方法还包括:所述基站接收所述第一用户设备上报的所述第一用户设备的区域信息;所述基站根据所述第一用户设备的区域信息确定所述第一用户设备的D2D链路资源。
结合第三方面的第四种实现方式,在第三方面的第五种实现方式中,在所述接收所述第一用户设备上报的所述第一用户设备的区域信息之前,所述方法还包括:所述基站向所述第一用户设备发送区域上报指示信息,以便于所述第一用户设备根据所述区域上报指示信息包含的参数和所述第一用户 设备的位置参数确定所述第一用户设备的区域信息。
结合第三方面,在第三方面的第六种实现方式中,所述链路选择策略信息用于指示承载所述数据的链路的选择方式,所述基站向所述第一用户设备发送链路选择策略信息,包括:所述基站向所述第一用户设备发送包含所述D2D链路的资源的链路选择策略信息,以便于所述第一用户设备根据所述蜂窝链路的状态是否满足预设条件来确定目标链路。
第一用户设备满足下列条件中的至少一个时,则确定蜂窝链路的状态满足预设条件:第一用户设备的T310或T311或T301定时器处于运行状态;第一用户设备的链路质量RSRP值低于第一阈值;第一用户设备的链路质量RSRQ值低于第二阈值。
结合第三方面,以及第三方面中的第一种至第六种实现方式中的任意一种,在第三方面的第七种实现方式中,所述数据为车对其它V2X数据。
第四方面,提供了一种在用户设备之间传输数据的方法,包括:基站向第一用户设备发送链路选择策略信息,以便于所述第一用户设备根据所述链路选择策略信息,从蜂窝链路和设备对设备D2D链路中选择目标链路,并通过所述目标链路接收第二用户设备发送的数据,其中,所述链路选择策略信息用于指示接收所述数据的链路。
在本申请的方案中,由于基站可以获取网络的具体情况(如蜂窝链路和D2D链路的负载情况以及基站周围其他基站所配置传输链路),因此,在用户设备之间传输数据时可以通过基站向用户设备发送链路选择策略信息来指示用户设备在接收数据时采用何种链路,使得用户设备能够选择更合适的链路来接收数据,避免了由于链路资源的选择不合理而导致的网络系统的负载不均衡或者网络资源的浪费。
具体来说,基站可以在接收到用户设备的请求消息之后,根据网络的具体情况(如蜂窝链路和D2D链路的负载情况)来生成链路选择策略消息并发送给用户设备,这样就可以指示用户设备选择更合适的链路来接收数据。,
结合第四方面,在第四方面的第一种实现方式中,所述链路选择策略信息包括第一指示信息,所述基站向第一用户设备发送链路选择策略信息,包括:所述基站向所述第一用户设备发送包含所述第一指示信息的链路选择策略信息,以便于所述第一用户设备确定所述D2D链路为所述目标链路。
结合第四方面,在第四方面的第二种实现方式中,所述链路选择策略信 息包括第二指示信息,所述基站向第一用户设备发送链路选择策略信息,包括:所述基站向所述第一用户设备发送包含所述第二指示信息的链路选择策略信息,以便于所述第一用户设备确定所述蜂窝链路为所述目标链路。
结合第四方面,在第四方面的第二种实现方式中,所述链路选择策略信息包括第三指示信息,所述基站向第一用户设备发送链路选择策略信息,包括:所述基站向所述第一用户设备发送包含所述第三指示信息的链路选择策略信息,以便于所述第一用户设备确定所述蜂窝链路和所述D2D链路为所述目标链路。
在上述某些实现方式中,所述基站通过广播或者专用信道向所述第一用户设备发送所述链路选择策略信息。
在上述某些实现方式中,所述第一用户设备将非目标链路上用于传输所述数据的承载设置为不可用承载,包括:所述第一用户设备在确定所述D2D链路为所述目标链路之后,所述第一用户设备将所述蜂窝链路配置为受限制或者不可用;所述第一用户设备在确定所述蜂窝链路为所述目标链路之后,所述第一用户设备将所述D2D链路配置为受限制或者不可用。
在上述某些实现方式中,当所述蜂窝链路满足所述预设条件时,所述第一用户设备配置所述蜂窝链路处于受限制或者不可用状态。
在上述某些实现方式中,当所述蜂窝链路不满足所述预设条件时,所述第一用户设备配置所述D2D链路处于受限制或者不可用状态。
在上述某些实现方式中,第一参数和第二参数可以是预先写入第一用户设备的固定参数,第一用户设备可以从第一用户设备的存储模块直接获取。
在上述某些实现方式中,V2X数据包括:车对车之间的数据,车对人的数据,车对路边的基础单元设备的数据,车对其它可以通信的设备的数据。
第五方面,提供了一种用户设备,所述用户设备包括用于执行上述第一方面中的方法的模块。
第六方面,提供了一种用户设备,所述用户设备包括用于执行上述第二方面中的方法的模块。
第七方面,提供一种基站,所述基站包括用于执行上述第三方面中的方法的模块。
第八方面,提供一种基站,所述基站包括用于执行上述第四方面中的方法的模块。
第九方面,提供了一种用户设备,所述用户设备包括存储器、处理器和收发器,所述存储器用于存储程序,当所述程序被执行时,所述处理器和所述收发器用于执行第一方面中的方法。
第十方面,提供了一种用户设备,所述用户设备包括存储器、处理器和收发器,所述存储器用于存储程序,当所述程序被执行时,所述处理器和所述收发器用于执行第二方面中的方法。
第十一方面,提供一种基站,所述基站包括存储器和收发器,所述存储器用于存储程序,当所述程序被执行时,所述收发器用于执行第三方面中的方法。
第十二方面,提供一种基站,所述基站包括存储器和收发器,所述存储器用于存储程序,当所述程序被执行时,所述收发器用于执行第四方面中的方法。
附图说明
为了更清楚地说明本发明实施例的技术方案,下面将对本发明实施例中所需要使用的附图作简单地介绍,显而易见地,下面所描述的附图仅仅是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。
图1是用户设备之间通过蜂窝链路进行通信的示意图。
图2是用户设备之间通过D2D链路进行通信的示意图。
图3是本发发明实施例的在用户设备之间传输数据的方法的示意性流程图。
图4是本发发明实施例的在用户设备之间传输数据的方法的示意性流程图。
图5是本发发明实施例的在用户设备之间传输数据的方法的示意性流程图。
图6是本发发明实施例的用户设备的示意性框图。
图7是本发发明实施例的用户设备的示意性框图。
图8是本发发明实施例的基站的示意性框图。
图9是本发发明实施例的基站的示意性框图。
图10是本发发明实施例的用户设备的示意性框图。
图11是本发发明实施例的用户设备的示意性框图。
图12是本发发明实施例的基站的示意性框图。
图13是本发发明实施例的基站的示意性框图。
具体实施方式
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
应理解,本发明的技术方案可以应用于各种通信系统,例如:全球移动通讯(Global System of Mobile communication,GSM)系统、码分多址(Code Division Multiple Access,CDMA)系统、宽带码分多址(Wideband Code Division Multiple Access,WCDMA)系统、通用分组无线业务(General Packet Radio Service,GPRS)、长期演进(Long Term Evolution,LTE)系统、先进的长期演进(Advanced long term evolution,LTE-A)系统、通用移动通信系统(Universal Mobile Telecommunication System,UMTS)、5G系统等。
还应理解,在本发明实施例中,用户设备(User Equipment,UE)包括但不限于移动台(Mobile Station,MS)、移动终端(Mobile Terminal)、移动电话(Mobile Telephone)、手机(handset)及便携设备(portable equipment)等,该用户设备可以经无线接入网(Radio Access Network,RAN)与一个或多个核心网进行通信,例如,用户设备可以是移动电话(或称为“蜂窝”电话)、具有无线通信功能的计算机等,用户设备还可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置。
在现有技术中,UE之间在通信时既可以通过基站进行通信也可以直接进行通信,也就是说UE之间可以利用蜂窝链路或者D2D链路进行通信。当UE需要向另一个UE发送数据时,那么UE可以自己决定通过何种链路向另一个UE发送数据,具体来说,当UE通过蜂窝链路发送数据时需要通过基站、核心网等设备向另一个UE发送数据,当UE通过D2D链路发送数据时,需要先向网络侧申请相应的D2D链路资源,然后再通过D2D链路向另一个UE发送数据。但是由于UE不能获取蜂窝链路和D2D链路的负载情况,因此,当UE在选择某种链路传输数据时可能会更进一步加重链路的负载,例 如,当蜂窝链路拥塞或者负载较多时,如果UE在传输数据时仍然采用蜂窝链路的话会给蜂窝链路带来更大的负担,影响蜂窝链路的正常工作。基于此,本发明实施例提出了一种用户设备之间传输数据的方法,该方法通过基站来确定用户设备之间通过何种链路来传输数据。由于基站能够获知蜂窝链路和D2D链路的负载情况或者其它信息,因此,基站能够更合理的确定用户设备之间采用何种链路进行数据的传输,例如,基站能获取蜂窝链路和D2D链路的负载的拥塞情况,并根据拥塞情况来通知UE在传输数据的时候采用何种链路。下面以UE1和UE2之间传输数据的场景为例,对本发明实施例的在用户设备之间传输数据的方法进行详细的介绍。
图3是本发发明实施例的在用户设备之间传输数据的方法的示意性流程图。该方法的主要步骤如下:
301、在UE1准备向UE2发送数据的情况下,基站向UE1发送链路选择策略信息,该链路选择策略信息用来指示承载数据的链路或者用于指示承载数据的链路的选择方式。这里承载数据的链路包括蜂窝链路和D2D链路。这里传输的数据可以是车对车(Vehicle-to-Vehicle,V2V)数据,车对人的数据,车对路边的基础单元设备的数据,车对其它可以通信的设备的数据。
302、UE1接收到链路选择策略信息后,对该链路选择策略信息进行解析,如果链路选择策略信息用来指示承载数据的链路,并且该链路选择策略信息不包含第一指示信息或者包含第二指示信息,那么,UE1就确定使用蜂窝链路发送数据,其中,这里的第一指示信息可以是专门指示利用蜂窝链路传输数据的指示信息,也可以是不包含D2D链路的资源信息的指示信息,这样,当UE1发现第一指示信息中不包含D2D链路资源时就可以确定采用蜂窝链路来发送数据。
303、UE1通过蜂窝链路向UE2发送数据。
应理解,在步骤301之前,在UE1准备向UE2发送数据之前,UE1可以先向基站发送请求消息,请求基站发送链路选择策略信息。
此外,在步骤302中,当UE1确定使用蜂窝链路发送数据时或者之后,UE1可以配置D2D链路承载为受限承载或不可用承载,UE1在接收到D2D链路承载请求后不响应该请求。
在步骤303中,UE1通过蜂窝链路向UE2发送数据可以具体包括:UE1在接收到链路选择策略信息后,UE1的接入协议层向上层(UE的接入协议 层之上的层,例如,IP层、非接入协议层、数据传输层、应用层)发送第三指示信息,指示上层采用蜂窝链路发送数据。该第三指示信息可以是指示UE1没有配置D2D链路资源的消息。
在图3所示的实施例中,基站可以控制基站覆盖范围内的UE使用蜂窝链路进行通信,例如,当D2D链路拥塞时,基站可以配置UE之间使用蜂窝链路进行通信,通过这样的方式可以控制蜂窝链路和D2D链路的负载情况,以合理的利用网络资源。
当蜂窝链路拥塞、UE之间距离较近或者其它情况时,基站可以配置UE之间通过D2D链路进行通信。如图4所示,基站可以通过向UE发送链路选择策略信息来指示UE1通过D2D链路向UE2发送数据。如图4所示,该方法的具体步骤如下:
401、在UE1准备向UE2发送数据的情况下,基站向UE1发送链路选择策略信息。
402、UE1接收到链路选择策略信息后,确定使用D2D链路发送数据。
UE1接收到链路选择策略信息后,对该链路选择策略信息进行解析,如果链路选择策略信息用来指示承载数据的链路,并且该链路选择策略信息包含第一指示信息,那么,UE1就确定使用D2D链路发送数据,其中,这里的第一指示信息可以是专门指示利用D2D链路传输数据的指示信息,也可以直接是D2D链路的资源信息。
403、UE1通过D2D链路向UE2发送数据。
具体来说,在步骤401中,UE1确定使用D2D链路发送数据时或者之后,UE1将蜂窝链路承载配置为受限承载或不可用承载,并且UE1不响应该请求。
在步骤403中,UE1通过D2D链路向UE2发送数据具体可以是:UE1的接入协议层向上层发送第三指示信息,指示上层采用D2D链路发送数据。该第三指示信息可以是指示UE1配置了D2D链路资源的消息。
在图3和图4所示的实施例中,基站向UE1发送的链路选择策略信息直接用于指示承载所述数据的链路,UE1在接收到链路选择策略信息后就能直接确定采用何种链路传输数据。此外,链路选择策略信息还可以用于指示承载所述数据的链路的选择方式,例如,UE1在接收到链路选择策略信息后,采用判断是否满足预设条件的方式来确定采用何种链路传输数据,这样可以更好更准确的为UE1分配传输数据的链路。下面结合图5对链路选择策略 信息还可以用于指示承载所述数据的链路的选择方式的情况进行详细的介绍。
图5是本发发明实施例的在用户设备之间传输数据的方法的示意性流程图。该方法的主要步骤如下:
501、基站向UE1发送链路选择策略信息,该链路选择策略信息用于指示承载所述数据的链路的选择方式。
应理解,UE1在接收到基站的链路选择策略信息后,对预设条件是否满足进行判断。
502、当预设条件不满足时,UE1使用蜂窝链路向UE2发送数据。
503、当预设条件满足时,UE1使用D2D链路向UE2发送数据。
当预设条件不满足时,UE1可以配置D2D链路承载为受限承载或不可用承载,UE1不响应该D2D链路承载请求。
此外,UE1的接入协议层可以向上层发送第三指示信息,该第三指示信息用于指示上层采用D2D链路还是蜂窝链路发送数据。该指示信息可以是UE1配置了用于预设条件满足时发送第一数据的D2D链路资源。
应理解,上述预设条件可以包含以下条件的一种或多种:UE1的链路质量RSRP低于第一阈值;UE1的链路质量RSRQ值低于第二阈值;UE1的T310或T311或T301定时器处于运行状态。这里的第一阈值和第二阈值可以根据UE1的实际情况进行设置。
通过对预设条件进行判断能使得UE结合自身情况来确定使用蜂窝链路还是D2D链路来传输数据,能够更好地在UE之间传输数据。
上文结合图3至图5,详细的描述了根据本发明实施例的在用户设备之间传输数据的方法,下面针对用户设备选择D2D链路作为目标链路的情况下如何确定用户设备所使用的D2D链路资源进行详细的描述。
可选地,由基站来确定用户设备的D2D链路资源。
具体而言,UE1可以在选择D2D链路作为目标链路之前向基站上报UE1的区域信息,基站再根据UE1的区域信息为UE1确定的D2D链路资源,基站可以从多个资源池中选择一个资源池的D2D链路资源作为UE1的D2D链路资源。
UE1在根据区域信息确定D2D资源之前还要接收基站发送的区域上报指示信息,然后UE1根据接收到的区域上报指示信息中所包含的参数以及 UE1的位置参数确定UE1的区域信息。UE1的位置参数可以用多种形式表示,例如,UE1的位置参数可以是GPS位置信息或者由北斗导航定位系统确定的位置信息或者其它能表征第一用户位置的信息。
当UE1接收到的区域上报指示信息包含多个区域中的任意一个第一区域的第三参数和/或第四参数和/或第五参数和/或第六参数时,UE1根据区域上报指示信息包含的参数和第一用户设备的位置参数确定第一用户设备的区域信息具体过程如下:
UE1获取所述多个区域的第一参数和第二参数;
UE1将所述第一用户设备所在位置的纬度坐标值与所述第一参数取模得到第一取模值;
UE1将所述第一用户设备所在位置的经度坐标值与所述第二参数取模得到第二取模值;
若满足下列条件中的至少一个条件,则确定UE1处于第一区域:
第一取模值小于第一区域的第三参数;
第一取模值大于第一区域的第四参数;
第二取模值小于第一区域的第五参数;
第二取模值大于第一区域的第六参数。
应理解,这里只是给出了确定UE1是否处于第一区域的判断过程,实际上,UE1在确定所处的区域时,要对多个区域进行判断,也就是说要对不同的区域重复上述判断步骤,应理解,UE1在确定所处的区域信息时可能会出现UE1属于多个区域的情况,这时,UE1可以任意选择一个区域的区域信息并将其上报到基站,或者可以根据一定的依据,对这几个区域进行一定的判断,然后再从中选择一个最合适的区域并将其信息上报给基站。
UE1可以从基站发送的区域上报指示信息中获取第一参数和第二参数,第一参数和第二参数还可以是预先写入UE1的固定参数,这样,UE1可以从UE1的存储模块中直接获取第一参数和第二参数。
可选地,由用户设备自身来确定用户设备的D2D链路资源。
具体来说,UE1可以根据UE1的位置参数和一个或多个资源池的选择参数的关系确定D2D链路的资源。
当至少一个资源池中包括任意一个第一资源池,第一资源池的配置参数包括第三参数、第四参数、第五参数以及第六参数中的至少一个,UE1根据 UE1的位置参数和一个或多个资源池的选择参数的关系确定D2D链路的资源的具体过程包括:
UE1获取至少一个资源池的第一参数和第二参数;
UE1将UE1所在位置的纬度坐标值与第一参数取模得到第一取模值;
UE1将UE1所在位置的经度坐标值与第二参数取模得到第二取模值;
若满足下列条件中的至少一个条件,UE1选择第一资源池的链路资源作为D2D链路的资源:
第一取模值小于第一资源池的第三参数;
第一取模值大于第一资源池的第四参数;
第二取模值小于第一资源池的第五参数;
第二取模值大于第一资源池的第六参数。
应理解,第一资源池是多个资源池中的任意一个资源池,这里只是给出了UE1判断第一资源池的链路资源是否可以作为D2D链路资源的判断过程,在实际过程中,UE1可能需要对多个资源池中的其它资源池,例如,第二资源池,第三资源池等等进行类似的判断,如果满足条件就确定该资源池的链路资源可以作为D2D链路资源,当多个资源池都满足条件时可以从中任意选择一个资源池的链路资源作为D2D链路资源或者还可以按照其它的方式从中选择一个最有的资源池的链路资源作为D2D链路资源。
上述第一参数和第二参数可以是UE1从至少一个资源池的选择参数中获取的,也可以是在与基站交互的过程中获取的,或者,第一参数和第二参数还可以是预先写入UE1的固定参数,UE1可以从UE1的存储模块直接获取。
本发明实施例还提供了一种用户设备之间传输数据的方法。该方法可以由第一用户设备执行,具体步骤如下:
601、第一用户设备接收基站发送的链路选择策略信息,链路选择策略信息用于指示接收数据的链路,其中,接收数据的链路包括蜂窝链路和设备对设备D2D链路;
602、第一用户设备根据链路选择策略信息,从蜂窝链路和D2D链路中选择目标链路;
603、第一用户设备通过目标链路接收第二用户设备发送的数据。
本发明实施例中,由于基站可以获取网络的具体情况(如蜂窝链路和 D2D链路的负载情况),因此,在用户设备之间传输数据时可以通过接收基站发送的链路选择策略信息来指示用户设备在接收数据时采用何种链路,使得用户设备能够选择更合适的链路来接收数据,避免了由于链路资源的选择不合理而导致的网络系统的负载不均衡或者网络资源的浪费。
本发明实施例提供了一种用户设备之间传输数据的方法。该方法可以由第一用户设备执行,具体步骤如下:
基站向第一用户设备发送链路选择策略信息,以便于所述第一用户设备根据所述链路选择策略信息,从蜂窝链路和设备对设备D2D链路中选择目标链路,并通过所述目标链路向第二用户设备发送数据,其中,所述链路选择策略信息用于指示承载所述数据的链路或者用于指示承载所述数据的链路的选择方式。
在本发明实施例中,由于基站可以获取网络的具体情况(如蜂窝链路和D2D链路的负载情况以及基站周围其他基站所配置传输链路),因此,在用户设备之间传输数据时可以通过基站向用户设备发送链路选择策略信息来指示用户设备在发送数据时采用何种链路,使得用户设备能够选择更合适的链路来发送数据,避免了由于链路资源的选择不合理而导致的网络系统的负载不均衡或者网络资源的浪费。
可选地,作为一个实施例,所述链路选择策略信息包含用于指示承载所述数据的链路的指示信息,所述基站向所述第一用户设备发送链路选择策略信息,包括:所述基站向所述第一用户设备发送包含第一指示信息的链路选择策略信息,以便于所述第一用户设备确定所述D2D链路为所述目标链路;或者,所述基站向所述第一用户设备发送不包含第一指示信息的链路选择策略信息或者包含第二指示信息的链路选择策略信息,以便于所述第一用户设备确定所述蜂窝链路为所述目标链路。
可选地,作为一个实施例,所述链路选择策略信息包括第二指示信息,所述第一用户设备根据所述链路选择策略信息,从所述蜂窝链路和所述D2D链路中选择目标链路,包括:述第一用户设备从接收到的所述链路选择策略信息中获取第二指示信息,确定所述蜂窝链路为所述目标链路。
可选地,作为一个实施例,所述接收链路选择策略信息包括第三指示信息,所述第一用户设备根据所述链路选择策略信息,从所述蜂窝链路和所述D2D链路中选择目标链路,包括:所述第一用户设备从接收到的所述链路选 择策略信息中获取第三指示信息,确定所述蜂窝链路和所述D2D链路为所述目标链路。
本发明实施例还提供了一种用户设备之间传输数据的方法。该方法可以由第一用户设备执行,具体步骤如下:
基站向第一用户设备发送链路选择策略信息,以便于所述第一用户设备根据所述链路选择策略信息,从蜂窝链路和设备对设备D2D链路中选择目标链路,并通过所述目标链路接收第二用户设备发送的数据,其中,所述链路选择策略信息用于指示接收所述数据的链路。
在本发明实施例中,由于基站可以获取网络的具体情况(如蜂窝链路和D2D链路的负载情况以及基站周围其他基站所配置传输链路),因此,在用户设备之间传输数据时可以通过基站向用户设备发送链路选择策略信息来指示用户设备在接收数据时采用何种链路,使得用户设备能够选择更合适的链路来接收数据,避免了由于链路资源的选择不合理而导致的网络系统的负载不均衡或者网络资源的浪费。
可选地,作为一个实施例,所述链路选择策略信息包括第一指示信息,所述基站向第一用户设备发送链路选择策略信息,包括:所述基站向所述第一用户设备发送包含所述第一指示信息的链路选择策略信息,以便于所述第一用户设备确定所述D2D链路为所述目标链路。
可选地,作为一个实施例,所述基站向所述第一用户设备发送包含第一指示信息的链路选择策略信息,且所述第一指示信息携带所述至少一个资源池的选择参数,以便于所述第一用户设备根据所述第一用户设备的位置参数和所述至少一个资源池的选择参数的关系确定所述D2D链路的资源。
可选地,作为一个实施例,所述基站向所述第一用户设备发送的所述第一指示信息中包含任意一个第一资源池的选择参数,其中,所述第一资源池的选择参数包括第三参数、第四参数、第五参数以及第六参数中的至少一个,以便于所述第一用户设备执行以下步骤:将所述第一用户设备所在位置的纬度坐标值和经度坐标值分别进行取模处理,得到第一取模值和第二取模值;若满足下列条件中的至少一种,则选择第一资源池的链路资源作为D2D链路的资源:第一取模值小于第一资源池的第三参数;第一取模值大于第一资源池的第四参数;第二取模值小于第一资源池的第五参数;第二取模值大于第一资源池的第六参数。
上述第一用户设备在获取第一取模值和第二取模值时,可以利用配置参数分别对维度坐标值和经度坐标值取模,得到第一取模值和第二取模值,具体来说,该配置参数可以包含第一参数和第二参数,第一用户设备将第一用户设备的维度坐标值与第一参数取模,得到第一取模值,将第一用户设备的经度坐标值与第二参数取模,得到第二取模值。应理解,第一用户设备可以判断第一取模值和第二取模值跟多个资源池中每个资源池的选择参数的关系,并从中确定符合条件的资源池的链路资源作为D2D链路资源。
可选地,作为一个实施例,所述链路选择策略信息包括第二指示信息,所述基站向第一用户设备发送链路选择策略信息,包括:所述基站向所述第一用户设备发送包含所述第二指示信息的链路选择策略信息,以便于所述第一用户设备确定所述蜂窝链路为所述目标链路。
可选地,作为一个实施例,所述链路选择策略信息包括第三指示信息,所述基站向第一用户设备发送链路选择策略信息,包括:所述基站向所述第一用户设备发送包含所述第三指示信息的链路选择策略信息,以便于所述第一用户设备确定所述蜂窝链路和所述D2D链路为所述目标链路。
下面结合图6至图13,描述本发明实施例的用户设备和基站。应理解,图6至图13描述的用户设备和基站能够实现图3至图5中描述的在用户设备之间传输数据的方法的各个步骤,为了简洁,适当省略重复的描述。
图6是本发明实施例的用户设备600的示意性结构图。用户设备600包括:
接收模块610,用于接收基站发送的链路选择策略信息,所述链路选择策略信息用于指示承载数据的链路或者用于指示承载所述数据的链路的选择方式,其中,承载所述数据的链路包括蜂窝链路和设备对设备D2D链路;
确定模块620,用于根据所述链路选择策略信息,从所述蜂窝链路和所述D2D链路中确定目标链路。
发送模块630,用于通过所述目标链路向另一个用户设备发送所述数据。
本发明实施例中,由于基站可以获取网络的具体情况(如蜂窝链路和D2D链路的负载情况),因此,在用户设备之间传输数据时可以采用基站来控制用户设备在传输数据时采用何种链路,这样就可以控制用户设备选择更合适的链路来传输数据,避免了链路资源的选择不合理而导致的网络系统的负载不均衡。
可选地,作为一个实施例,在所述接收模块610接收所述基站发送的链路选择策略信息之前,所述确定模块620还用于:确定所述用户设备600是否处于所述基站的覆盖范围;如果所述用户设备600不在所述基站的覆盖范围,确定所述D2D链路作为目标链路。
可选地,作为一个实施例,所述接收模块610接收的所述链路选择策略信息用于指示承载所述数据的链路,所述确定模块620具体用于:当所述链路选择策略信息包含第一指示信息时,确定所述D2D链路为所述目标链路,或者,当所述链路选择策略信息不包含所述第一指示信息或者包含第二指示信息时,确定所述蜂窝链路为所述目标链路。
可选地,作为一个实施例,所述第一指示信息携带所述用户设备600的D2D链路资源。
可选地,作为一个实施例,所述接收模块610接收的所述链路选择策略信息包含第一指示信息,且所述第一指示信息携带所述用户设备600的D2D链路资源,所述发送模块630具体用于:在所述确定模块620选择所述D2D链路作为所述目标链路之前,向所述基站上报所述用户设备600的区域信息,以便于所述基站根据所述用户设备600的区域信息确定所述用户设备600的D2D链路资源。
可选地,作为一个实施例,所述接收模块610还用于:在所述发送模块630向所述基站发送所述用户设备600的区域信息之前,接收所述基站发送的区域上报指示信息;所述确定模块620具体用于根据所述接收模块610接收的所述区域上报指示信息包含的参数和所述用户设备600的位置参数确定所述用户设备600的区域信息。
可选地,作为一个实施例,所述区域上报指示信息包含多个区域的中的任意一个第一区域的第三参数、第四参数、第五参数以及第六参数中的至少一个,所述确定模块620具体用于:获取配置参数,所述配置参数用于对所述用户设备的位置参数进行取模处理;将所述用户设备所在位置的纬度坐标值和经度坐标值分别与所述配置参数取模,得到第一取模值和第二取模值;若满足下列条件中的至少一个条件,则确定所述用户设备处于第一区域:第一取模值小于第一区域的第三参数;第一取模值大于第一区域的第四参数;第二取模值小于第一区域的第五参数;第二取模值大于第一区域的第六参数。
可选地,作为一个实施例,所述配置参数包括第一参数和第二参数,所述确定模块620具体用于:将所述用户设备600所在位置的纬度坐标值与所述第一参数取模,得到第一取模值;将所述用户设备600所在位置的经度坐标值与所述第二参数取模,得到第二取模值。
可选地,作为一个实施例,所述确定模块620具体用于从所述基站发送的区域上报指示信息中获取所述配置参数。
可选地,作为一个实施例,所述确定模块620确定所述D2D链路为所述目标链路之后,所述用户设备600还包括:获取模块640,用于获取至少一个资源池的选择参数;所述确定模块620还用于根据所述用户设备600的位置参数和至少一个资源池的选择参数的关系确定所述D2D链路的资源。
可选地,作为一个实施例,所述至少一个资源池中包括任意一个第一资源池,所述第一资源池的选择参数包括第三参数、第四参数、第五参数以及第六参数中的至少一个,所述确定模块620具体用于:获取配置参数,所述配置参数用于对所述用户设备600的位置参数进行取模处理;将所述用户设备600所在位置的纬度坐标值和经度坐标值分别与所述配置参数取模,得到第一取模值和第二取模值;若满足下列条件中的至少一个,所述用户设备600选择第一资源池的链路资源作为D2D链路的资源:第一取模值小于第一资源池的第三参数;第一取模值大于第一资源池的第四参数;第二取模值小于第一资源池的第五参数;第二取模值大于第一资源池的第六参数。
可选地,作为一个实施例,所述配置参数包括第一参数和第二参数,所述确定模块620具体用于:将所述用户设备600所在位置的纬度坐标值与所述第一参数取模,得到第一取模值;将所述用户设备600所在位置的经度坐标值与所述第二参数取模,得到第二取模值。
可选地,作为一个实施例,所述获取模块640还用于:从所述第一指示信息中获取所述配置参数,或者,所述用户设备600不在所述基站的覆盖范围时,从预先配置的信息中获取所述配置参数。
可选地,作为一个实施例,所述获取模块640具体用于:从所述第一指示信息中获取所述至少一个资源池的选择参数,或者,所述用户设备600不处于所述基站的覆盖范围,从预先配置的信息中获取所述至少一个资源池的选择参数。
可选地,作为一个实施例,所述链路选择策略信息用于指示承载所述数 据的链路的选择方式,所述确定模块620具体用于:当所述链路选择策略信息包含所述D2D链路的资源时,确定所述蜂窝链路的状态是否满足预设条件;如果所述蜂窝链路的状态满足预设条件,确定所述D2D链路为所述目标链路;如果所述蜂窝链路的状态不满足预设条件,确定所述蜂窝链路为所述目标链路。
可选地,作为一个实施例,所述确定模块620具体用于:如果所述用户设备600满足下列条件中的至少一个,则确定所述蜂窝链路的状态满足所述预设条件:所述用户设备600的T310或T311或T301定时器处于运行状态;所述用户设备600的链路质量RSRP值低于第一阈值;所述用户设备600的链路质量RSRQ值低于第二阈值。
可选地,作为一个实施例,所述发送模块630具体用于:从所述用户设备600的接入协议层向所述接入协议层的上层发送第三指示信息,以指示所述接入协议层的上层通过所述目标链路向所述另一个用户设备发送数据。
可选地,作为一个实施例,所述用户设备600还包括:设置模块650,用于将非目标链路上用于传输所述数据的承载设置为不可用承载,并且不响应所述非目标链路上用于传输所述数据的承载请求
可选地,作为一个实施例,所述数据为车对其它V2X数据。
图7是本发明实施例的用户设备700的示意性结构图。用户设备700包括:
接收模块710,用于接收基站发送的链路选择策略信息,所述链路选择策略信息用于指示接收数据的链路,其中,接收所述数据的链路包括蜂窝链路和设备对设备D2D链路;
确定模块720,用于根据所述链路选择策略信息,从所述蜂窝链路和所述D2D链路中选择目标链路;
所述接收模块710还用于通过所述目标链路接收第二用户设备发送的所述数据。
在本发明实施例中,由于基站可以获取网络的具体情况(如蜂窝链路和D2D链路的负载情况),因此,在用户设备之间传输数据时可以通过接收基站发送的链路选择策略信息来指示用户设备在接收数据时采用何种链路,使得用户设备能够选择更合适的链路来接收数据,避免了由于链路资源的选择不合理而导致的网络系统的负载不均衡或者网络资源的浪费。
可选地,作为一个实施例,所述链路选择策略信息包括第一指示信息,所述确定模块720具体用于:从所述接收模块710接收到的所述链路选择策略信息中获取第一指示信息,确定将所述D2D链路作为目标链路。
可选地,作为一个实施例,所述链路选择策略信息包括第二指示信息,所述确定模块720具体用于:从所述接收模块710接收到的所述链路选择策略信息中获取第二指示信息,确定所述蜂窝链路为所述目标链路。
可选地,作为一个实施例,所述接收链路选择策略信息包括第三指示信息,所述确定模块720具体用于:从所述接收模块710接收到的所述链路选择策略信息中获取第三指示信息,确定所述蜂窝链路和所述D2D链路为所述目标链路。
图8是本发明实施例的基站800的示意性结构图。基站800包括:
发送模块810,用于向第一用户设备发送链路选择策略信息,以便于所述第一用户设备根据所述链路选择策略信息,从所述蜂窝链路和所述设备对设备D2D链路中选择目标链路,并通过所述目标链路向第二用户设备发送数据,其中,所述链路选择策略信息用于指示承载所述数据的链路或者用于指示承载所述数据的链路的选择方式,承载所述数据的链路包括蜂窝链路和D2D链路。
本发明实施例中,由于基站可以获取网络的具体情况(如蜂窝链路和D2D链路的负载情况),因此,在用户设备之间传输数据时可以采用基站来控制用户设备在传输数据时采用何种链路,这样就可以控制用户设备选择更合适的链路来传输数据,避免了链路资源的选择不合理而导致的网络系统的负载不均衡。
可选地,作为一个实施例,所述链路选择策略信息包含用于指示承载所述数据的链路的指示信息,所述发送模块810具体用于:向所述第一用户设备发送包含第一指示信息的链路选择策略信息,以便于所述第一用户设备确定所述D2D链路为所述目标链路;或者,向所述第一用户设备发送不包含第一指示信息的链路选择策略信息或者包含第二指示信息的链路选择策略信息,以便于所述第一用户设备确定所述蜂窝链路为所述目标链路。
可选地,作为一个实施例,所述发送模块810具体用于向所述第一用户设备发送包含第一指示信息的链路选择策略信息,且所述第一指示信息携带所述至少一个资源池的选择参数,以便于所述第一用户设备根据所述第一用 户设备的位置参数和所述至少一个资源池的选择参数的关系确定所述D2D链路的资源。
可选地,作为一个实施例,所述发送模块810向所述第一用户设备发送的所述第一指示信息中包含任意一个第一资源池的选择参数,其中,所述第一资源池的选择参数包括第三参数、第四参数、第五参数以及第六参数中的至少一个,以便于所述第一用户设备执行以下步骤:将所述第一用户设备所在位置的纬度坐标值和经度坐标值分别进行取模处理,得到第一取模值和第二取模值;若满足下列条件中的至少一种,则选择第一资源池的链路资源作为D2D链路的资源:第一取模值小于第一资源池的第三参数;第一取模值大于第一资源池的第四参数;第二取模值小于第一资源池的第五参数;第二取模值大于第一资源池的第六参数。
可选地,作为一个实施例,所述链路选择策略信息包含第一指示信息,且所述第一指示信息携带所述第一用户设备的D2D链路资源,所述接收模块810还用于接收所述第一用户设备上报的所述第一用户设备的区域信息;所述基站800还包括:确定模块830,用于根据所述第一用户设备的区域信息确定所述第一用户设备的D2D链路资源。
可选地,作为一个实施例,所述发送模块820还用于:在所述接收模块810接收所述第一用户设备上报的所述第一用户设备的区域信息之前,向所述第一用户设备发送区域上报指示信息,以便于所述第一用户设备根据所述区域上报指示信息包含的参数和所述第一用户设备的位置参数确定所述第一用户设备的区域信息。
可选地,作为一个实施例,所述链路选择策略信息用于指示承载所述数据的链路的选择方式,所述发送模块820还用于:向所述第一用户设备发送包含所述D2D链路的资源的链路选择策略信息,以便于所述第一用户设备根据所述蜂窝链路的状态是否满足预设条件来确定目标链路。
可选地,作为一个实施例,所述数据为车对其它V2X数据。
图9是本发明实施例的基站900的示意性结构图。基站900包括:
发送模块910,用于向第一用户设备发送链路选择策略信息,以便于所述第一用户设备根据所述链路选择策略信息,从蜂窝链路和设备对设备D2D链路中选择目标链路,并通过所述目标链路接收第二用户设备发送的数据,其中,所述链路选择策略信息用于指示接收所述数据的链路。
本发明实施例中,由于基站可以获取网络的具体情况(如蜂窝链路和D2D链路的负载情况以及基站周围其他基站所配置传输链路),因此,在用户设备之间传输数据时可以通过基站向用户设备发送链路选择策略信息来指示用户设备在接收数据时采用何种链路,使得用户设备能够选择更合适的链路来接收数据,避免了由于链路资源的选择不合理而导致的网络系统的负载不均衡或者网络资源的浪费。
可选地,作为一个实施例,所述链路选择策略信息包括第一指示信息,所述发送模块910具体用于:向所述第一用户设备发送包含所述第一指示信息的链路选择策略信息,以便于所述第一用户设备确定所述D2D链路为所述目标链路。
可选地,作为一个实施例,所述链路选择策略信息包括第二指示信息,所述发送模块910具体用于:向所述第一用户设备发送包含所述第二指示信息的链路选择策略信息,以便于所述第一用户设备确定所述蜂窝链路为所述目标链路。
可选地,作为一个实施例,所述链路选择策略信息包括第三指示信息,所述发送模块910具体用于:向所述第一用户设备发送包含所述第三指示信息的链路选择策略信息,以便于所述第一用户设备确定所述蜂窝链路和所述D2D链路为所述目标链路。
图10是本发明实施例的用户设备1000的示意性结构图。用户设备1000包括:
存储器1010,用于存储程序;
收发器1020,当所述程序被执行时,所述收发器1020用于接收基站发送的链路选择策略信息,所述链路选择策略信息用于指示承载数据的链路或者用于指示承载所述数据的链路的选择方式,其中,承载所述数据的链路包括蜂窝链路和设备对设备D2D链路;
处理器1030,当所述程序被执行时,所述处理器1030用于根据所述链路选择策略信息,从所述蜂窝链路和所述D2D链路中确定目标链路。
其中,所述收发器1020还用于通过所述目标链路向另一个用户设备发送所述数据。
本发明实施例中,由于基站可以获取网络的具体情况(如蜂窝链路和D2D链路的负载情况),因此,在用户设备之间传输数据时可以采用基站来 控制用户设备在传输数据时采用何种链路,这样就可以控制用户设备选择更合适的链路来传输数据,避免了链路资源的选择不合理而导致的网络系统的负载不均衡。
可选地,作为一个实施例,在所述收发器1020接收所述基站发送的链路选择策略信息之前,所述处理器1030还用于:确定所述用户设备1000是否处于所述基站的覆盖范围;如果所述用户设备1000不在所述基站的覆盖范围,确定所述D2D链路作为目标链路。
可选地,作为一个实施例,所述收发器1020接收的所述链路选择策略信息用于指示承载所述数据的链路,所述处理器1030具体用于:当所述链路选择策略信息包含第一指示信息时,确定所述D2D链路为所述目标链路,或者,当所述链路选择策略信息不包含所述第一指示信息或者包含第二指示信息时,确定所述蜂窝链路为所述目标链路。
可选地,作为一个实施例,所述第一指示信息携带所述用户设备1000的D2D链路资源。
可选地,作为一个实施例,所述收发器1020接收的所述链路选择策略信息包含第一指示信息,且所述第一指示信息携带所述用户设备1000的D2D链路资源,所述收发器1020具体用于:在所述处理器1030选择所述D2D链路作为所述目标链路之前,向所述基站上报所述用户设备1000的区域信息,以便于所述基站根据所述用户设备1000的区域信息确定所述用户设备1000的D2D链路资源。
可选地,作为一个实施例,所述收发器1020还用于:在所述收发器1020向所述基站发送所述用户设备1000的区域信息之前,接收所述基站发送的区域上报指示信息;所述处理器1030具体用于根据所述收发器1020接收的所述区域上报指示信息包含的参数和所述用户设备1000的位置参数确定所述用户设备1000的区域信息。
可选地,作为一个实施例,所述区域上报指示信息包含多个区域的中的任意一个第一区域的第三参数、第四参数、第五参数以及第六参数中的至少一个,所述处理器1030具体用于:获取配置参数,所述配置参数用于对所述用户设备的位置参数进行取模处理;将所述用户设备所在位置的纬度坐标值和经度坐标值分别与所述配置参数取模,得到第一取模值和第二取模值;若满足下列条件中的至少一个条件,则确定所述用户设备处于第一区域:第 一取模值小于第一区域的第三参数;第一取模值大于第一区域的第四参数;第二取模值小于第一区域的第五参数;第二取模值大于第一区域的第六参数。
可选地,作为一个实施例,所述配置参数包括第一参数和第二参数,所述处理器1030具体用于:将所述用户设备1000所在位置的纬度坐标值与所述第一参数取模,得到第一取模值;将所述用户设备1000所在位置的经度坐标值与所述第二参数取模,得到第二取模值。
可选地,作为一个实施例,所述处理器1030具体用于从所述基站发送的区域上报指示信息中获取所述配置参数。
可选地,作为一个实施例,所述处理器1030确定所述D2D链路为所述目标链路之后,所述处理器1030还用于获取至少一个资源池的选择参数;所述处理器1030还用于根据所述用户设备1000的位置参数和至少一个资源池的选择参数的关系确定所述D2D链路的资源。
可选地,作为一个实施例,所述至少一个资源池中包括任意一个第一资源池,所述第一资源池的选择参数包括第三参数、第四参数、第五参数以及第六参数中的至少一个,所述处理器1030具体用于:获取配置参数,所述配置参数用于对所述用户设备1000的位置参数进行取模处理;将所述用户设备1000所在位置的纬度坐标值和经度坐标值分别与所述配置参数取模,得到第一取模值和第二取模值;若满足下列条件中的至少一个,所述用户设备1000选择第一资源池的链路资源作为D2D链路的资源:第一取模值小于第一资源池的第三参数;第一取模值大于第一资源池的第四参数;第二取模值小于第一资源池的第五参数;第二取模值大于第一资源池的第六参数。
可选地,作为一个实施例,所述配置参数包括第一参数和第二参数,所述处理器1030具体用于:将所述用户设备1000所在位置的纬度坐标值与所述第一参数取模,得到第一取模值;将所述用户设备1000所在位置的经度坐标值与所述第二参数取模,得到第二取模值。
可选地,作为一个实施例,所述处理器1030还用于:从所述第一指示信息中获取所述配置参数,或者,所述用户设备1000不在所述基站的覆盖范围时,从预先配置的信息中获取所述配置参数。
可选地,作为一个实施例,所述处理器1030具体用于:从所述第一指示信息中获取所述至少一个资源池的选择参数,或者,所述用户设备1000 不处于所述基站的覆盖范围,从预先配置的信息中获取所述至少一个资源池的选择参数。
可选地,作为一个实施例,所述链路选择策略信息用于指示承载所述数据的链路的选择方式,所述处理器1030具体用于:当所述链路选择策略信息包含所述D2D链路的资源时,确定所述蜂窝链路的状态是否满足预设条件;如果所述蜂窝链路的状态满足预设条件,确定所述D2D链路为所述目标链路;如果所述蜂窝链路的状态不满足预设条件,确定所述蜂窝链路为所述目标链路。
可选地,作为一个实施例,所述处理器1030具体用于:如果所述用户设备1000满足下列条件中的至少一个,则确定所述蜂窝链路的状态满足所述预设条件:所述用户设备1000的T310或T311或T301定时器处于运行状态;所述用户设备1000的链路质量RSRP值低于第一阈值;所述用户设备1000的链路质量RSRQ值低于第二阈值。
可选地,作为一个实施例,所述收发器1020具体用于:从所述用户设备1000的接入协议层向所述接入协议层的上层发送第三指示信息,以指示所述接入协议层的上层通过所述目标链路向所述另一个用户设备发送数据。
可选地,作为一个实施例,所述用户设备1000还包括:设置模块650,用于将非目标链路上用于传输所述数据的承载设置为不可用承载,并且不响应所述非目标链路上用于传输所述数据的承载请求
可选地,作为一个实施例,所述数据为车对其它V2X数据。
图11是本发明实施例的用户设备1100的示意性结构图。用户设备1100包括:
存储器1110,用于存储程序;
收发器1120,当所述程序被执行时,所述收发器1120用于接收基站发送的链路选择策略信息,所述链路选择策略信息用于指示接收数据的链路,其中,接收所述数据的链路包括蜂窝链路和设备对设备D2D链路;
处理器1130,当所述程序被执行时,所述处理器1130用于根据所述链路选择策略信息,从所述蜂窝链路和所述D2D链路中选择目标链路;
其中,所述收发器1120还用于通过所述目标链路接收第二用户设备发送的所述数据。
在本发明实施例中,由于基站可以获取网络的具体情况(如蜂窝链路和 D2D链路的负载情况),因此,在用户设备之间传输数据时可以通过接收基站发送的链路选择策略信息来指示用户设备在接收数据时采用何种链路,使得用户设备能够选择更合适的链路来接收数据,避免了由于链路资源的选择不合理而导致的网络系统的负载不均衡或者网络资源的浪费。
可选地,作为一个实施例,所述链路选择策略信息包括第一指示信息,所述处理器1130具体用于:从所述收发器1120接收到的所述链路选择策略信息中获取第一指示信息,确定将所述D2D链路作为目标链路。
可选地,作为一个实施例,所述链路选择策略信息包括第二指示信息,所述处理器1130具体用于:从所述收发器1120接收到的所述链路选择策略信息中获取第二指示信息,确定所述蜂窝链路为所述目标链路。
可选地,作为一个实施例,所述接收链路选择策略信息包括第三指示信息,所述处理器1130具体用于:从所述收发器1120接收到的所述链路选择策略信息中获取第三指示信息,确定所述蜂窝链路和所述D2D链路为所述目标链路。
图12是本发明实施例的基站1200的示意性结构图。基站1200包括:
存储器1210,用于存储程序;
收发器1220,当所述程序被执行时,所述收发器1220用于向第一用户设备发送链路选择策略信息,以便于所述第一用户设备根据所述链路选择策略信息,从所述蜂窝链路和所述设备对设备D2D链路中选择目标链路,并通过所述目标链路向第二用户设备发送数据,其中,所述链路选择策略信息用于指示承载所述数据的链路或者用于指示承载所述数据的链路的选择方式,承载所述数据的链路包括蜂窝链路和D2D链路。
本发明实施例中,由于基站可以获取网络的具体情况(如蜂窝链路和D2D链路的负载情况),因此,在用户设备之间传输数据时可以采用基站来控制用户设备在传输数据时采用何种链路,这样就可以控制用户设备选择更合适的链路来传输数据,避免了链路资源的选择不合理而导致的网络系统的负载不均衡。
可选地,作为一个实施例,所述链路选择策略信息包含用于指示承载所述数据的链路的指示信息,所述收发器1220具体用于:向所述第一用户设备发送包含第一指示信息的链路选择策略信息,以便于所述第一用户设备确定所述D2D链路为所述目标链路;或者,向所述第一用户设备发送不包含 第一指示信息的链路选择策略信息或者包含第二指示信息的链路选择策略信息,以便于所述第一用户设备确定所述蜂窝链路为所述目标链路。
可选地,作为一个实施例,所述收发器1220具体用于向所述第一用户设备发送包含第一指示信息的链路选择策略信息,且所述第一指示信息携带所述至少一个资源池的选择参数,以便于所述第一用户设备根据所述第一用户设备的位置参数和所述至少一个资源池的选择参数的关系确定所述D2D链路的资源。
可选地,作为一个实施例,所述收发器1220向所述第一用户设备发送的所述第一指示信息中包含任意一个第一资源池的选择参数,其中,所述第一资源池的选择参数包括第三参数、第四参数、第五参数以及第六参数中的至少一个,以便于所述第一用户设备执行以下步骤:将所述第一用户设备所在位置的纬度坐标值和经度坐标值分别进行取模处理,得到第一取模值和第二取模值;若满足下列条件中的至少一种,则选择第一资源池的链路资源作为D2D链路的资源:第一取模值小于第一资源池的第三参数;第一取模值大于第一资源池的第四参数;第二取模值小于第一资源池的第五参数;第二取模值大于第一资源池的第六参数。
可选地,作为一个实施例,所述链路选择策略信息包含第一指示信息,且所述第一指示信息携带所述第一用户设备的D2D链路资源,所述收发器1220还用于接收所述第一用户设备上报的所述第一用户设备的区域信息;所述基站1200还包括:处理器1230,用于根据所述第一用户设备的区域信息确定所述第一用户设备的D2D链路资源。
可选地,作为一个实施例,所述收发器1220还用于:在接收所述第一用户设备上报的所述第一用户设备的区域信息之前,向所述第一用户设备发送区域上报指示信息,以便于所述第一用户设备根据所述区域上报指示信息包含的参数和所述第一用户设备的位置参数确定所述第一用户设备的区域信息。
可选地,作为一个实施例,所述链路选择策略信息用于指示承载所述数据的链路的选择方式,所述收发器1220还用于:向所述第一用户设备发送包含所述D2D链路的资源的链路选择策略信息,以便于所述第一用户设备根据所述蜂窝链路的状态是否满足预设条件来确定目标链路。
可选地,作为一个实施例,所述数据为车对其它V2X数据。
图13是本发明实施例的基站1300的示意性结构图。基站1300包括:
存储器1310,用于存储程序;
收发器1320,当所述程序被执行时,所述收发器1320用于向第一用户设备发送链路选择策略信息,以便于所述第一用户设备根据所述链路选择策略信息,从蜂窝链路和设备对设备D2D链路中选择目标链路,并通过所述目标链路接收第二用户设备发送的数据,其中,所述链路选择策略信息用于指示接收所述数据的链路。
本发明实施例中,由于基站可以获取网络的具体情况(如蜂窝链路和D2D链路的负载情况以及基站周围其他基站所配置传输链路),因此,在用户设备之间传输数据时可以通过基站向用户设备发送链路选择策略信息来指示用户设备在接收数据时采用何种链路,使得用户设备能够选择更合适的链路来接收数据,避免了由于链路资源的选择不合理而导致的网络系统的负载不均衡或者网络资源的浪费。
可选地,作为一个实施例,所述链路选择策略信息包括第一指示信息,所述发送器1320具体用于:向所述第一用户设备发送包含所述第一指示信息的链路选择策略信息,以便于所述第一用户设备确定所述D2D链路为所述目标链路。
可选地,作为一个实施例,所述链路选择策略信息包括第二指示信息,所述发送器1320具体用于:向所述第一用户设备发送包含所述第二指示信息的链路选择策略信息,以便于所述第一用户设备确定所述蜂窝链路为所述目标链路。
可选地,作为一个实施例,所述链路选择策略信息包括第三指示信息,所述发送器1320具体用于:向所述第一用户设备发送包含所述第三指示信息的链路选择策略信息,以便于所述第一用户设备确定所述蜂窝链路和所述D2D链路为所述目标链路。
应理解,本文中术语“和/或”,仅仅是一种描述关联对象的关联关系,表示可以存在三种关系,例如,A和/或B,可以表示:单独存在A,同时存在A和B,单独存在B这三种情况。另外,本文中字符“/”,一般表示前后关联对象是一种“或”的关系。
应理解,在本发明的各种实施例中,上述各过程的序号的大小并不意味着执行顺序的先后,各过程的执行顺序应以其功能和内在逻辑确定,而不应 对本发明实施例的实施过程构成任何限定。
本领域普通技术人员可以意识到,结合本文中所公开的实施例描述的各示例的单元及算法步骤,能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行,取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能,但是这种实现不应认为超出本发明的范围。
所属领域的技术人员可以清楚地了解到,为描述的方便和简洁,上述描述的系统、装置和单元的具体工作过程,可以参考前述方法实施例中的对应过程,在此不再赘述。
在本申请所提供的几个实施例中,应该理解到,所揭露的系统、装置和方法,可以通过其它的方式实现。例如,以上所描述的装置实施例仅仅是示意性的,例如,所述单元的划分,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式,例如多个单元或组件可以结合或者可以集成到另一个系统,或一些特征可以忽略,或不执行。另一点,所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口,装置或单元的间接耦合或通信连接,可以是电性,机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外,在本发明各个实施例中的各功能单元可以集成在一个处理单元中,也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。基于这样的理解,本发明的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质中,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)执行本发明各个实施例所述方法的全部或部分步骤。而前述的存储介质包括:U盘、移动硬盘、只读存储器(ROM,Read-Only Memory)、随机存取存储器(RAM,Random Access Memory)、磁碟或者光盘等各种可 以存储程序代码的介质。
以上所述,仅为本发明的具体实施方式,但本发明的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本发明揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本发明的保护范围之内。因此,本发明的保护范围应以所述权利要求的保护范围为准。

Claims (70)

  1. 一种在用户设备之间传输数据的方法,其特征在于,包括:
    第一用户设备接收基站发送的链路选择策略信息,所述链路选择策略信息用于指示承载所述数据的链路或者用于指示承载所述数据的链路的选择方式,其中,承载所述数据的链路包括蜂窝链路和设备对设备D2D链路;
    所述第一用户设备根据所述链路选择策略信息,从所述蜂窝链路和所述D2D链路中选择目标链路;
    所述第一用户设备通过所述目标链路向所述第二用户设备发送所述数据。
  2. 如权利要求1所述的方法,其特征在于,所述第一用户设备接收所述基站发送的链路选择策略信息之前,所述方法还包括:
    所述第一用户设备确定所述第一用户设备是否处于所述基站的覆盖范围;
    如果所述第一用户设备不在所述基站的覆盖范围,所述第一用户设备确定所述D2D链路作为目标链路。
  3. 如权利要求1所述的方法,其特征在于,所述链路选择策略信息用于指示承载所述数据的链路,所述第一用户设备根据所述链路选择策略信息,从所述蜂窝链路和所述D2D链路中选择目标链路,包括:
    所述链路选择策略信息包含第一指示信息,所述第一用户设备确定所述D2D链路为所述目标链路,或者,
    所述链路选择策略信息不包含所述第一指示信息或者包含第二指示信息,所述第一用户设备确定所述蜂窝链路为所述目标链路。
  4. 如权利要求3所述的方法,其特征在于,所述第一指示信息携带所述第一用户设备的D2D链路资源。
  5. 如权利要求4所述的方法,其特征在于,所述链路选择策略信息包含第一指示信息,所述第一用户设备在选择所述D2D链路作为目标链路之前,所述方法还包括:
    所述第一用户设备向基站上报所述第一用户设备的区域信息,以便于所述基站根据所述第一用户设备的区域信息确定所述第一用户设备的D2D链路资源。
  6. 如权利要求5所述的方法,其特征在于,所述第一用户设备向所述 基站上报所述第一用户设备的区域信息之前,所述方法还包括:
    所述第一用户设备接收基站发送的区域上报指示信息;
    所述第一用户设备根据所述区域上报指示信息包含的参数和所述第一用户设备的位置参数确定所述第一用户设备的区域信息。
  7. 如权利要求6所述的方法,其特征在于,所述区域上报指示信息包含多个区域中的任意一个第一区域的第三参数、第四参数、第五参数以及第六参数中的至少一个,所述第一用户设备根据所述区域上报指示信息包含的参数和所述第一用户设备的位置参数确定所述第一用户设备的区域信息,包括:
    所述第一用户设备获取配置参数,所述配置参数用于对所述第一用户设备的位置参数进行取模处理;
    所述第一用户设备将所述第一用户设备所在位置的纬度坐标值和经度坐标值分别与所述配置参数取模,得到第一取模值和第二取模值;
    若满足下列条件中的至少一个,则确定所述第一用户设备处于第一区域:
    第一取模值小于第一区域的第三参数;
    第一取模值大于第一区域的第四参数;
    第二取模值小于第一区域的第五参数;
    第二取模值大于第一区域的第六参数。
  8. 如权利要求7所述的方法,其特征在于,所述配置参数包括第一参数和第二参数,所述第一用户设备将所述第一用户设备所在位置的纬度坐标值和经度坐标值分别与所述配置参数取模,得到第一取模值和第二取模值,包括:
    所述第一用户设备将所述第一用户设备所在位置的纬度坐标值与所述第一参数取模,得到第一取模值;
    所述第一用户设备将所述第一用户设备所在位置的经度坐标值与所述第二参数取模,得到第二取模值。
  9. 如权利要求7或8所述的方法,其特征在于,所述第一用户设备获取配置参数,包括:
    所述第一用户设备从所述基站发送的区域上报指示信息中获取所述配置参数。
  10. 如权利要求1-3中任一项所述的方法,其特征在于,所述第一用户设备确定所述D2D链路为所述目标链路之后,所述方法还包括:
    所述第一用户设备获取至少一个资源池的选择参数;
    所述第一用户设备根据所述第一用户设备的位置参数和至少一个资源池的选择参数的关系确定所述D2D链路的资源。
  11. 如权利要求10所述的方法,其特征在于,所述至少一个资源池中包括任意一个第一资源池,所述第一资源池的选择参数包括第三参数、第四参数、第五参数以及第六参数中的至少一个,所述第一用户设备根据所述第一用户设备的位置参数和所述至少一个资源池的选择参数的关系确定D2D链路的资源,包括:
    所述第一用户设备获取配置参数,所述配置参数用于对所述第一用户设备的位置参数进行取模处理;
    所述第一用户设备将所述第一用户设备所在位置的纬度坐标值和经度坐标值分别与所述配置参数取模,得到第一取模值和第二取模值;
    若满足下列条件中的至少一个,所述第一用户设备选择第一资源池的链路资源作为D2D链路的资源:
    第一取模值小于第一资源池的第三参数;
    第一取模值大于第一资源池的第四参数;
    第二取模值小于第一资源池的第五参数;
    第二取模值大于第一资源池的第六参数。
  12. 如权利要求11所述的方法,其特征在于,所述配置参数包括第一参数和第二参数,所述第一用户设备将所述第一用户设备所在位置的纬度坐标值和经度坐标值分别与所述配置参数取模,得到第一取模值和第二取模值,包括:
    所述第一用户设备将所述第一用户设备所在位置的纬度坐标值与所述第一参数取模,得到第一取模值;
    所述第一用户设备将所述第一用户设备所在位置的经度坐标值与所述第二参数取模,得到第二取模值。
  13. 如权利要求11或12所述的方法,其特征在于,所述第一用户设备获取配置参数,包括:
    所述第一用户设备从所述第一指示信息中获取所述配置参数,或者,
    所述第一用户设备不在所述基站的覆盖范围,所述第一用户设备从预先配置的信息中获取所述配置参数。
  14. 如权利要求10所述的方法,其特征在于,所述第一用户设备获取至少一个资源池的选择参数,包括:
    所述用户设备从所述第一指示信息中获取所述至少一个资源池的选择参数,
    或者,所述第一用户设备不处于所述基站的覆盖范围,所述第一用户设备从预先配置的信息中获取所述至少一个资源池的选择参数。
  15. 如权利要求1所述的方法,其特征在于,所述链路选择策略信息用于指示承载所述数据的链路的选择方式,所述第一用户设备根据所述链路选择策略信息,从所述蜂窝链路或者所述D2D链路中选择目标链路,包括:
    当所述链路选择策略信息包含所述D2D链路的资源时,所述第一用户设备确定所述蜂窝链路的状态是否满足预设条件;
    如果所述蜂窝链路的状态满足预设条件,所述第一用户设备确定所述D2D链路为所述目标链路;
    如果所述蜂窝链路的状态不满足预设条件,所述第一用户设备确定所述蜂窝链路为所述目标链路。
  16. 如权利要求15所述的方法,所述第一用户设备确定所述蜂窝链路的状态是否满足预设条件,包括:
    如果所述第一用户设备满足下列条件中的至少一个,则确定所述蜂窝链路的状态满足预设条件:
    所述第一用户设备的T310或T311或T301定时器处于运行状态;
    所述第一用户设备的链路质量RSRP值低于第一阈值;
    所述第一用户设备的链路质量RSRQ值低于第二阈值。
  17. 如权利要求1-16中任一项所述的方法,其特征在于,所述第一用户设备通过所述目标链路向第二用户设备发送数据,包括:
    所述第一用户设备的接入协议层向所述接入协议层的上层发送第三指示信息,以指示所述接入协议层的上层通过所述目标链路向第二用户设备发送数据。
  18. 如权利要求1-17中任一项所述的方法,其特征在于,所述第一用户设备通过所述目标链路向第二用户设备发送数据,包括:
    所述第一用户设备将非目标链路上用于传输所述数据的承载设置为不可用承载,并且不响应所述非目标链路上用于传输所述数据的承载请求。
  19. 如权利要求1-18中任一项所述的方法,其特征在于,所述数据为车对其它V2X数据。
  20. 一种在用户设备之间传输数据的方法,其特征在于,包括:
    第一用户设备接收基站发送的链路选择策略信息,所述链路选择策略信息用于指示接收数据的链路,其中,接收所述数据的链路包括蜂窝链路和设备对设备D2D链路;
    所述第一用户设备根据所述链路选择策略信息,从所述蜂窝链路和所述D2D链路中选择目标链路;
    所述第一用户设备通过所述目标链路接收第二用户设备发送的所述数据。
  21. 如权利要求20所述的方法,所述链路选择策略信息包括第一指示信息,所述第一用户设备根据所述链路选择策略信息,从所述蜂窝链路和所述D2D链路中选择目标链路,包括:所述第一用户设备从接收到的所述链路选择策略信息中获取第一指示信息,确定所述D2D链路为所述目标链路。
  22. 如权利要求20所述的方法,所述链路选择策略信息包括第二指示信息,所述第一用户设备根据所述链路选择策略信息,从所述蜂窝链路和所述D2D链路中选择目标链路,包括:
    所述第一用户设备从接收到的所述链路选择策略信息中获取第二指示信息,确定所述蜂窝链路为所述目标链路。
  23. 如权利要求20所述的方法,所述接收链路选择策略信息包括第三指示信息,所述第一用户设备根据所述链路选择策略信息,从所述蜂窝链路和所述D2D链路中选择目标链路,包括:
    所述第一用户设备从接收到的所述链路选择策略信息中获取第三指示信息,确定所述蜂窝链路和所述D2D链路为所述目标链路。
  24. 一种在用户设备之间传输数据的方法,其特征在于,包括:
    基站向第一用户设备发送链路选择策略信息,以便于所述第一用户设备根据所述链路选择策略信息,从蜂窝链路和设备对设备D2D链路中选择目标链路,并通过所述目标链路向第二用户设备发送数据,其中,所述链路选择策略信息用于指示承载所述数据的链路或者用于指示承载所述数据的链 路的选择方式。
  25. 如权利要求24所述的方法,其特征在于,所述链路选择策略信息包含用于指示承载所述数据的链路的指示信息,所述基站向所述第一用户设备发送链路选择策略信息,包括:
    所述基站向所述第一用户设备发送包含第一指示信息的链路选择策略信息,以便于所述第一用户设备确定所述D2D链路为所述目标链路;或者,
    所述基站向所述第一用户设备发送不包含第一指示信息的链路选择策略信息或者包含第二指示信息的链路选择策略信息,以便于所述第一用户设备确定所述蜂窝链路为所述目标链路。
  26. 如权利要求25所述的方法,其特征在于,所述基站向所述第一用户设备发送包含第一指示信息的链路选择策略信息,且所述第一指示信息携带所述至少一个资源池的选择参数,以便于所述第一用户设备根据所述第一用户设备的位置参数和所述至少一个资源池的选择参数的关系确定所述D2D链路的资源。
  27. 如权利要求26所述的方法,其特征在于,所述基站向所述第一用户设备发送的所述第一指示信息中包含任意一个第一资源池的选择参数,其中,所述第一资源池的选择参数包括第三参数、第四参数、第五参数以及第六参数中的至少一个,以便于所述第一用户设备执行以下步骤:
    将所述第一用户设备所在位置的纬度坐标值和经度坐标值分别进行取模处理,得到第一取模值和第二取模值;
    若满足下列条件中的至少一种,则选择第一资源池的链路资源作为D2D链路的资源:
    第一取模值小于第一资源池的第三参数;
    第一取模值大于第一资源池的第四参数;
    第二取模值小于第一资源池的第五参数;
    第二取模值大于第一资源池的第六参数。
  28. 如权利要求25所述的方法,其特征在于,所述链路选择策略信息包含第一指示信息,且所述第一指示信息携带所述第一用户设备的D2D链路资源,在所述第一用户设备选择所述D2D链路作为所述目标链路之前,所述方法还包括:
    所述基站接收所述第一用户设备上报的所述第一用户设备的区域信息;
    所述基站根据所述第一用户设备的区域信息确定所述第一用户设备的D2D链路资源。
  29. 如权利要求28所述的方法,其特征在于,在接收所述第一用户设备上报的所述第一用户设备的区域信息之前,所述方法还包括:
    所述基站向所述第一用户设备发送区域上报指示信息,以便于所述第一用户设备根据所述区域上报指示信息包含的参数和所述第一用户设备的位置参数确定所述第一用户设备的区域信息。
  30. 如权利要求24所述的方法,其特征在于,所述链路选择策略信息用于指示承载所述数据的链路的选择方式,所述基站向所述第一用户设备发送链路选择策略信息,包括:
    所述基站向所述第一用户设备发送包含所述D2D链路的资源的链路选择策略信息,以便于所述第一用户设备根据所述蜂窝链路的状态是否满足预设条件来确定目标链路。
  31. 如权利要求24-30中任一项所述的方法,其特征在于,所述数据为车对其它V2X数据。
  32. 一种在用户设备之间传输数据的方法,其特征在于,包括:
    基站向第一用户设备发送链路选择策略信息,以便于所述第一用户设备根据所述链路选择策略信息,从蜂窝链路和设备对设备D2D链路中选择目标链路,并通过所述目标链路接收第二用户设备发送的数据,其中,所述链路选择策略信息用于指示接收所述数据的链路。
  33. 如权利要求32所述的方法,其特征在于,所述链路选择策略信息包括第一指示信息,所述基站向第一用户设备发送链路选择策略信息,包括:
    所述基站向所述第一用户设备发送包含所述第一指示信息的链路选择策略信息,以便于所述第一用户设备确定所述D2D链路为所述目标链路。
  34. 如权利要求32所述的方法,其特征在于,所述链路选择策略信息包括第二指示信息,所述基站向第一用户设备发送链路选择策略信息,包括:
    所述基站向所述第一用户设备发送包含所述第二指示信息的链路选择策略信息,以便于所述第一用户设备确定所述蜂窝链路为所述目标链路。
  35. 如权利要求32所述的方法,其特征在于,所述链路选择策略信息包括第三指示信息,所述基站向第一用户设备发送链路选择策略信息,包括:
    所述基站向所述第一用户设备发送包含所述第三指示信息的链路选择 策略信息,以便于所述第一用户设备确定所述蜂窝链路和所述D2D链路为所述目标链路。
  36. 一种用户设备,其特征在于,包括:
    接收模块,用于接收基站发送的链路选择策略信息,所述链路选择策略信息用于指示承载数据的链路或者用于指示承载所述数据的链路的选择方式,其中,承载所述数据的链路包括蜂窝链路和设备对设备D2D链路;
    确定模块,用于根据所述链路选择策略信息,从所述蜂窝链路和所述D2D链路中确定目标链路
    发送模块,用于通过所述目标链路向另一个用户设备发送所述数据。
  37. 如权利要求36所述的用户设备,其特征在于,在所述接收模块接收所述基站发送的链路选择策略信息之前,所述确定模块还用于:
    确定所述用户设备是否处于所述基站的覆盖范围;
    如果所述用户设备不在所述基站的覆盖范围,确定所述D2D链路作为目标链路。
  38. 如权利要求36所述的用户设备,其特征在于,所述接收模块接收的所述链路选择策略信息用于指示承载所述数据的链路,所述确定模块具体用于:
    当所述链路选择策略信息包含第一指示信息时,确定所述D2D链路为所述目标链路,或者,
    当所述链路选择策略信息不包含所述第一指示信息或者包含第二指示信息时,确定所述蜂窝链路为所述目标链路。
  39. 如权利要求38所述的用户设备,其特征在于,所述第一指示信息携带所述第一用户设备的D2D链路资源。
  40. 如权利要求39所述的用户设备,其特征在于,所述链路选择策略信息包含第一指示信息,所述发送模块具体用于:
    在所述确定模块选择所述D2D链路作为所述目标链路之前,向所述基站上报所述用户设备的区域信息,以便于所述基站根据所述用户设备的区域信息确定所述用户设备的D2D链路资源。
  41. 如权利要求40所述的用户设备,其特征在于,所述接收模块还用于:
    在所述发送模块向所述基站发送所述用户设备的区域信息之前,接收所 述基站发送的区域上报指示信息;
    所述确定模块具体用于根据所述接收模块接收的所述区域上报指示信息包含的参数和所述用户设备的位置参数确定所述用户设备的区域信息。
  42. 如权利要求41所述的用户设备,其特征在于,所述区域上报指示信息包含多个区域的中的任意一个第一区域的第三参数、第四参数、第五参数以及第六参数中的至少一个,所述确定模块具体用于:
    获取配置参数,所述配置参数用于对所述用户设备的位置参数进行取模处理;
    将所述用户设备所在位置的纬度坐标值和经度坐标值分别与所述配置参数取模,得到第一取模值和第二取模值;
    若满足下列条件中的至少一个条件,则确定所述用户设备处于第一区域:
    第一取模值小于第一区域的第三参数;
    第一取模值大于第一区域的第四参数;
    第二取模值小于第一区域的第五参数;
    第二取模值大于第一区域的第六参数。
  43. 如权利要求42所述的用户设备,其特征在于,所述配置参数包括第一参数和第二参数,所述确定模块具体用于:
    将所述用户设备所在位置的纬度坐标值与所述第一参数取模,得到第一取模值;
    将所述用户设备所在位置的经度坐标值与所述第二参数取模,得到第二取模值。
  44. 如权利要求42或43所述的用户设备,其特征在于,所述确定模块具体用于从所述基站发送的区域上报指示信息中获取所述配置参数。
  45. 如权利要求36-38中任一项所述的用户设备,其特征在于,所述确定模块确定所述D2D链路为所述目标链路之后,所述用户设备还包括:
    获取模块,用于获取至少一个资源池的选择参数;
    所述确定模块还用于根据所述用户设备的位置参数和至少一个资源池的选择参数的关系确定所述D2D链路的资源。
  46. 如权利要求45所述的用户设备,其特征在于,所述至少一个资源池中包括任意一个第一资源池,所述第一资源池的选择参数包括第三参数、 第四参数、第五参数以及第六参数中的至少一个,所述确定模块具体用于:
    获取配置参数,所述配置参数用于对所述用户设备的位置参数进行取模处理;
    将所述用户设备所在位置的纬度坐标值和经度坐标值分别与所述配置参数取模,得到第一取模值和第二取模值;
    若满足下列条件中的至少一个,所述用户设备选择第一资源池的链路资源作为D2D链路的资源:
    第一取模值小于第一资源池的第三参数;
    第一取模值大于第一资源池的第四参数;
    第二取模值小于第一资源池的第五参数;
    第二取模值大于第一资源池的第六参数。
  47. 如权利要求46所述的用户设备,其特征在于,所述配置参数包括第一参数和第二参数,所述确定模块具体用于:
    将所述用户设备所在位置的纬度坐标值与所述第一参数取模,得到第一取模值;
    将所述用户设备所在位置的经度坐标值与所述第二参数取模,得到第二取模值。
  48. 如权利要求46或47所述的用户设备,其特征在于,所述获取模块还用于:
    从所述第一指示信息中获取所述配置参数,或者,
    所述用户设备不在所述基站的覆盖范围时,从预先配置的信息中获取所述配置参数。
  49. 如权利要求45所述的用户设备,其特征在于,所述获取模块具体用于:
    从所述第一指示信息中获取所述至少一个资源池的选择参数,
    或者,所述用户设备不处于所述基站的覆盖范围,从预先配置的信息中获取所述至少一个资源池的选择参数。
  50. 如权利要求36所述的用户设备,其特征在于,所述链路选择策略信息用于指示承载所述数据的链路的选择方式,所述确定模块具体用于:
    当所述链路选择策略信息包含所述D2D链路的资源时,确定所述蜂窝链路的状态是否满足预设条件;
    如果所述蜂窝链路的状态满足预设条件,确定所述D2D链路为所述目标链路;
    如果所述蜂窝链路的状态不满足预设条件,确定所述蜂窝链路为所述目标链路。
  51. 如权利要求50所述的用户设备,其特征在于,所述确定模块具体用于:
    如果所述用户设备满足下列条件中的至少一个,则确定所述蜂窝链路的状态满足所述预设条件:
    所述用户设备的T310或T311或T301定时器处于运行状态;
    所述用户设备的链路质量RSRP值低于第一阈值;
    所述用户设备的链路质量RSRQ值低于第二阈值。
  52. 如权利要求36-51中任一项所述的用户设备,其特征在于,所述发送模块具体用于:
    从所述用户设备的接入协议层向所述接入协议层的上层发送第三指示信息,以指示所述接入协议层的上层通过所述目标链路向所述另一个用户设备发送数据。
  53. 如权利要求36-52中任一项所述的用户设备,其特征在于,所述用户设备还包括:
    设置模块,用于将非目标链路上用于传输所述数据的承载设置为不可用承载,并且不响应所述非目标链路上用于传输所述数据的承载请求。
  54. 如权利要求36-53中任一项所述的用户设备,其特征在于,所述数据为车对其它V2X数据。
  55. 一种用户设备,其特征在于,包括:
    接收模块,用于接收基站发送的链路选择策略信息,所述链路选择策略信息用于指示接收数据的链路,其中,接收所述数据的链路包括蜂窝链路和设备对设备D2D链路;
    确定模块,用于根据所述链路选择策略信息,从所述蜂窝链路和所述D2D链路中选择目标链路;
    所述接收模块还用于通过所述目标链路接收第二用户设备发送的所述数据。
  56. 如权利要求55所述的用户设备,其特征在于,所述链路选择策略 信息包括第一指示信息,所述确定模块具体用于:
    从所述接收模块接收到的所述链路选择策略信息中获取第一指示信息,确定所述D2D链路为所述目标链路。
  57. 如权利要求55所述的用户设备,其特征在于,所述链路选择策略信息包括第二指示信息,所述确定模块具体用于:
    从所述接收模块接收到的所述链路选择策略信息中获取第二指示信息,确定所述蜂窝链路为所述目标链路。
  58. 如权利要求55所述的用户设备,其特征在于,所述接收链路选择策略信息包括第三指示信息,所述确定模块具体用于:
    从所述接收模块接收到的所述链路选择策略信息中获取第三指示信息,确定所述蜂窝链路和所述D2D链路为所述目标链路。
  59. 一种基站,其特征在于,包括:
    发送模块,用于向所述第一用户设备发送链路选择策略信息,以便于所述第一用户设备根据所述链路选择策略信息,从蜂窝链路和设备对设备D2D链路中选择目标链路,并通过所述目标链路向第二用户设备发送数据,其中,所述链路选择策略信息用于指示承载所述数据的链路或者用于指示承载所述数据的链路的选择方式。
  60. 如权利要求59所述的基站,其特征在于,所述链路选择策略信息包含用于指示承载所述数据的链路的指示信息,所述发送模块具体用于:
    向所述第一用户设备发送包含第一指示信息的链路选择策略信息,以便于所述第一用户设备确定所述D2D链路为所述目标链路;或者,
    向所述第一用户设备发送不包含第一指示信息的链路选择策略信息或者包含第二指示信息的链路选择策略信息,以便于所述第一用户设备确定所述蜂窝链路为所述目标链路。
  61. 如权利要求60所述的基站,其特征在于,所述发送模块具体用于向所述第一用户设备发送包含第一指示信息的链路选择策略信息,且所述第一指示信息携带所述至少一个资源池的选择参数,以便于所述第一用户设备根据所述第一用户设备的位置参数和所述至少一个资源池的选择参数的关系确定所述D2D链路的资源。
  62. 如权利要求61所述的基站,其特征在于,所述发送模块向所述第一用户设备发送的所述第一指示信息中包含任意一个第一资源池的选择参 数,其中,所述第一资源池的选择参数包括第三参数、第四参数、第五参数以及第六参数中的至少一个,以便于所述第一用户设备执行以下步骤:
    将所述第一用户设备所在位置的纬度坐标值和经度坐标值分别进行取模处理,得到第一取模值和第二取模值;
    若满足下列条件中的至少一种,则选择第一资源池的链路资源作为D2D链路的资源:
    第一取模值小于第一资源池的第三参数;
    第一取模值大于第一资源池的第四参数;
    第二取模值小于第一资源池的第五参数;
    第二取模值大于第一资源池的第六参数。
  63. 如权利要求60所述的基站,其特征在于,所述链路选择策略信息包含第一指示信息,且所述第一指示信息携带所述第一用户设备的D2D链路资源,所述接收模块还用于接收所述第一用户设备上报的所述第一用户设备的区域信息;
    所述基站还包括:
    确定模块,用于根据所述第一用户设备的区域信息确定所述第一用户设备的D2D链路资源。
  64. 如权利要求60所述的基站,其特征在于,所述发送模块还用于:
    在所述接收模块接收所述第一用户设备上报的所述第一用户设备的区域信息之前,向所述第一用户设备发送区域上报指示信息,以便于所述第一用户设备根据所述区域上报指示信息包含的参数和所述第一用户设备的位置参数确定所述第一用户设备的区域信息。
  65. 如权利要求59所述的基站,其特征在于,所述链路选择策略信息用于指示承载所述数据的链路的选择方式,所述发送模块还用于:
    向所述第一用户设备发送包含所述D2D链路的资源的链路选择策略信息,以便于所述第一用户设备根据所述蜂窝链路的状态是否满足预设条件来确定目标链路。
  66. 如权利要求59-65中任一项所述的基站,其特征在于,所述数据为车对其它V2X数据。
  67. 一种基站,其特征在于,包括:
    发送模块,用于向第一用户设备发送链路选择策略信息,以便于所述第 一用户设备根据所述链路选择策略信息,从蜂窝链路和设备对设备D2D链路中选择目标链路,并通过所述目标链路接收第二用户设备发送的数据,其中,所述链路选择策略信息用于指示接收所述数据的链路。
  68. 如权利要求67所述的基站,其特征在于,所述链路选择策略信息包括第一指示信息,所述发送模块具体用于:
    向所述第一用户设备发送包含所述第一指示信息的链路选择策略信息,以便于所述第一用户设备确定所述D2D链路为所述目标链路。
  69. 如权利要求67所述的基站,其特征在于,所述链路选择策略信息包括第二指示信息,所述发送模块具体用于:
    向所述第一用户设备发送包含所述第二指示信息的链路选择策略信息,以便于所述第一用户设备确定所述蜂窝链路为所述目标链路。
  70. 如权利要求67所述的基站,其特征在于,所述链路选择策略信息包括第三指示信息,所述发送模块具体用于:
    向所述第一用户设备发送包含所述第三指示信息的链路选择策略信息,以便于所述第一用户设备确定所述蜂窝链路和所述D2D链路为所述目标链路。
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