WO2017049595A1 - 边链路信息传输装置、方法以及通信系统 - Google Patents

边链路信息传输装置、方法以及通信系统 Download PDF

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Publication number
WO2017049595A1
WO2017049595A1 PCT/CN2015/090746 CN2015090746W WO2017049595A1 WO 2017049595 A1 WO2017049595 A1 WO 2017049595A1 CN 2015090746 W CN2015090746 W CN 2015090746W WO 2017049595 A1 WO2017049595 A1 WO 2017049595A1
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WIPO (PCT)
Prior art keywords
user equipment
relay
request information
remote user
resource request
Prior art date
Application number
PCT/CN2015/090746
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English (en)
French (fr)
Inventor
吴联海
徐海博
周华
Original Assignee
富士通株式会社
吴联海
徐海博
周华
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 富士通株式会社, 吴联海, 徐海博, 周华 filed Critical 富士通株式会社
Priority to PCT/CN2015/090746 priority Critical patent/WO2017049595A1/zh
Priority to CN201580082289.9A priority patent/CN107852696A/zh
Publication of WO2017049595A1 publication Critical patent/WO2017049595A1/zh
Priority to US15/915,644 priority patent/US20180199312A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/02—Selection of wireless resources by user or terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/155—Ground-based stations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/155—Ground-based stations
    • H04B7/15528—Control of operation parameters of a relay station to exploit the physical medium
    • H04B7/15542—Selecting at relay station its transmit and receive resources
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/04—Terminal devices adapted for relaying to or from another terminal or user
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices

Definitions

  • the embodiments of the present invention relate to the field of communications technologies, and in particular, to a side link (SideLink) information transmission apparatus, method, and communication system.
  • SideLink side link
  • the sidelink communication mode means that the data packet does not need to pass through the core network and the base station, and the user equipment UE1 and UE2 can directly establish a communication link to communicate.
  • Side link communication can also be referred to as device to device (D2D) communication.
  • the edge link discovery process is generally performed before the sidelink communication is performed. For example, before UE1 sends information to UE2 through side-link communication, it is first found whether UE2 is nearby.
  • 1 is a schematic diagram of side link communication, showing two cases where UEs (UE1 and UE2) perform edge link discovery or establish side link communication under coverage of a base station (eg, eNB).
  • 2 is another schematic diagram of side link communication, showing a situation in which one UE (UE1) performs edge link discovery or establishes side link communication when the base station (UE1) is under the coverage of the base station and the other UE (UE2) is not under the coverage of the base station.
  • UE1 is a schematic diagram of side link communication, showing two cases in which UEs (UE1 and UE2) that are not covered by the base station perform edge link discovery or establish side link communication.
  • the edge link communication method can be used to expand the cell coverage. Two examples of extended coverage are given below in conjunction with Figures 1 and 2.
  • Scenario 1 As shown in Figure 1, one user equipment (UE2) is located at the edge of the cell and the signal is weak, and it is likely to leave the coverage of the cell. In addition, there is a user equipment (for example, UE1) having a relay function authorized by the network in the vicinity. In order to avoid service interruption, after discovering the relay (also referred to as a relay user equipment) UE1, UE2 can access the base station through the relay UE1 to continue normal service communication.
  • UE1 user equipment having a relay function authorized by the network in the vicinity.
  • Scenario 2 As shown in FIG. 2, one user equipment (for example, UE2) is located in an area without network coverage. Also, there is a user equipment (for example, UE1) having a relay function authorized by the network in the vicinity. In order to access the network After the UE2 finds the relay UE1 located in the cell coverage, the UE2 can access the base station through the relay UE1.
  • UE1 user equipment
  • UE1 user equipment having a relay function authorized by the network in the vicinity.
  • UE2 may be referred to as a remote user equipment (remote UE), which may be located within the cell coverage or may be located outside the cell coverage.
  • a user equipment (for example, UE1) having a relay function may be referred to as a relay user equipment, which is also referred to as a UE-Network Relay, and may also be simply referred to as a relay.
  • a remote user equipment and a relay user equipment are selected (eg, selected by the remote user equipment or selected by the base station, etc.), the remote user equipment and the relay user may be referred to.
  • the device has been paired.
  • the base station may allocate edge link resources for the remote user equipment but does not allocate side link resources for the paired relay user equipment, thereby causing waste of resources; or for remote users.
  • the device and the paired relay user equipment are allocated overlapping resources, which causes a resource collision.
  • Embodiments of the present invention provide an edge link information transmission apparatus, method, and communication system. By transmitting information that the remote user equipment and the relay user equipment have been paired to the base station, resource waste or resource collision can be avoided or reduced.
  • a method for transmitting an edge link information which is applied to a remote user equipment, and the method for transmitting the side link information includes:
  • the remote user equipment selects a relay user equipment from one or more user equipments
  • an edge link information transmission apparatus configured in a remote user equipment, where the edge link information transmission apparatus includes:
  • a relay selection unit selecting a relay user equipment from one or more user equipments
  • the first request sending unit sends, to the base station, first resource request information for requesting allocation of an edge link resource, where the first resource request information indicates that the remote user equipment and the relay user equipment are paired.
  • a side link information transmission method which is applied to a relay user equipment, and the side link information transmission method includes:
  • the relay user equipment sends second resource request information for requesting allocation of side link resources to the base station; wherein the second resource request information indicates that the relay user equipment is paired with one or more remote user equipments.
  • an edge link information transmission apparatus configured in a relay user equipment, where the side link information transmission apparatus includes:
  • the second request sending unit sends, to the base station, second resource request information for requesting allocation of the side link resource; wherein the second resource request information indicates that the relay user equipment is paired with one or more remote user equipments.
  • a communication system includes: a remote user equipment, a relay user equipment, and a base station;
  • the remote user equipment selects the relay user equipment from one or more user equipments, and sends first resource request information for requesting allocation of side link resources to the base station, where the first resource
  • the request information indicates that the remote user equipment is paired with the relay user equipment
  • the relay user equipment sends, to the base station, second resource request information for requesting allocation of edge link resources, where the second resource request information indicates the relay user equipment and one or more of the foregoing
  • the remote user device is paired.
  • a computer readable program wherein when the program is executed in a base station, the program causes a computer to execute an edge link information transmission method as described above in the base station .
  • a storage medium storing a computer readable program, wherein the computer readable program causes a computer to perform an edge link information transmission method as described above in a base station.
  • a computer readable program wherein when the program is executed in a user equipment, the program causes a computer to perform side link information as described above in the user equipment Transmission method.
  • a storage medium storing a computer readable program, wherein the computer readable program causes a computer to execute an edge link information transmission method as described above in a user equipment.
  • the beneficial effects of the embodiment of the present invention are: remote users through remote user equipment or relay user equipment
  • the information that the device and the relay user equipment are paired is sent to the base station, and the base station can allocate suitable resources to the paired remote user equipment and the relay user equipment; thereby, the remote link equipment can be avoided or reduced.
  • Figure 1 is a schematic diagram of side link communication
  • FIG. 3 is another schematic diagram of side link communication
  • FIG. 4 is a schematic diagram of a method for transmitting side link information according to Embodiment 1 of the present invention.
  • FIG. 5 is another schematic diagram of an edge link information transmission method according to Embodiment 1 of the present invention.
  • FIG. 6 is a schematic diagram of a method for transmitting side link information according to Embodiment 2 of the present invention.
  • FIG. 7 is another schematic diagram of an edge link information transmission method according to Embodiment 2 of the present invention.
  • FIG. 8 is another schematic diagram of an edge link information transmission method according to Embodiment 2 of the present invention.
  • FIG. 9 is a schematic diagram of an edge link information transmission apparatus according to Embodiment 3 of the present invention.
  • FIG. 10 is a schematic diagram of a user equipment according to Embodiment 3 of the present invention.
  • FIG. 11 is another schematic diagram of an edge link information transmission apparatus according to Embodiment 3 of the present invention.
  • FIG. 12 is a schematic diagram of a base station according to Embodiment 3 of the present invention.
  • FIG 13 is a schematic diagram of an edge link information transmission apparatus according to Embodiment 4 of the present invention.
  • FIG. 14 is another schematic diagram of an edge link information transmission apparatus according to Embodiment 4 of the present invention.
  • Figure 15 is a diagram showing the communication system of Embodiment 5 of the present invention.
  • the remote user equipment UE2 located in the cell coverage finds and selects one relay user equipment UE1
  • the remote user equipment UE2 sends a message to inform the base station that the relay user equipment UE1 has been selected.
  • the base station allocates side link resources to the remote user equipment UE2.
  • the remote user equipment UE2 can send a connection request for establishing an edge link to the selected relay user equipment UE1 on the allocated resources. After receiving the information, the relay user equipment UE1 will send request information for requesting the side link resource to the base station.
  • the base station After the base station receives the request information sent by the relay user equipment UE1, if the base station does not know that the remote user equipment UE2 and the relay user equipment UE1 are paired user equipments, the base station may refuse to allocate the side chain based on the shortage of resources.
  • the path resource is to the relay user equipment UE1.
  • the base station has allocated the side link resources to the remote user equipment UE2, but does not allocate the side link resources to the relay user equipment UE1, thereby causing waste of resources.
  • the base station may give the remote user equipment UE2 and the relay if the base station does not know that the remote user equipment UE2 and the relay user equipment UE1 are paired user equipments.
  • the user equipment UE1 allocates overlapping side link resources, thereby causing a resource collision.
  • FIG. 4 is a schematic diagram of a method for transmitting side link information according to an embodiment of the present invention, which is described from the side of a remote user equipment.
  • the edge link information transmission method includes:
  • Step 401 The remote user equipment selects a relay user equipment from one or more user equipments.
  • Step 402 The remote user equipment sends, to the base station, first resource request information for requesting allocation of edge link resources, where the first resource request information indicates that the remote user equipment and the relay user equipment are paired.
  • the remote user equipment may perform the selection of the relay user equipment if the air interface signal strength is lower than the preset threshold; however, the present invention is not limited thereto, and the relay user equipment may also be performed under other trigger conditions.
  • the relay user equipment is a user equipment with a relay capability, that is, an authorization of a ProSe Function entity is obtained in advance, and a ProSe Relay UE ID is provided.
  • the first resource request information may specifically include: an originating user equipment ID and a paired destination end user equipment ID.
  • the request information is represented, for example, as an edge link user equipment identifier (ProSe UE ID) of the remote user equipment and a relay user equipment identifier (ProSe Relay UE ID) of the relay user equipment.
  • ProSe UE ID edge link user equipment identifier
  • ProSe Relay UE ID relay user equipment identifier
  • the resource request information may be used to indicate that the remote user equipment and the relay user equipment are paired (for example, the resource request information includes the ProSe UE ID and the ProSe Relay UE ID),
  • the base station can learn the information of the side link paired user equipment, so that the remote user equipment and the relay user equipment can be allocated appropriate resources.
  • FIG. 5 is another schematic diagram of an edge link information transmission method according to an embodiment of the present invention. As shown in FIG. 5, the edge link information transmission method includes:
  • Step 501 The remote user equipment performs a selection of the relay user equipment.
  • the remote user equipment has a ProSe UE ID
  • the relay user equipment has a ProSe Relay UE ID.
  • the remote user equipment can detect the edge link discovery signal sent by one or more user equipments, select one of the relay user equipments according to the preset condition, and obtain the ProSe Relay UE ID of the relay user equipment.
  • Step 502 The remote user equipment sends, to the base station, first resource request information for requesting allocation of edge link resources, where the first resource request information includes an originating user equipment ID and a destination end user equipment ID.
  • the request information is represented, for example, by the ProSe UE ID and the ProSe Relay UE ID.
  • Step 503 The base station allocates a suitable edge link resource to the remote user equipment.
  • Step 504 The remote user equipment sends a connection request for establishing a side link connection to the relay user equipment on the allocated side link resource.
  • the request information may also include, for example, a C-RNTI of the remote user equipment.
  • Step 505 The relay user equipment sends, to the base station, second resource request information for requesting allocation of edge link resources.
  • the relay user equipment after receiving the connection request of the remote user equipment, if the relay user equipment agrees to establish a side link connection, the relay user equipment sends a request message to the base station, requesting allocation for the side link transmission. resource of.
  • Step 506 The base station allocates a suitable edge link resource to the relay user equipment.
  • the base station may decide whether to allocate resources and allocate resources to the relay user equipment. If the resource is agreed to be allocated, the base station may allocate according to the information obtained in step 502. The appropriate edge link resources communicate to the relay user equipment.
  • the base station may allocate resources that do not overlap with the resources of the remote user equipment to the relay user equipment, and avoid conflicts between the half-duplex remote user equipment or the relay user equipment when receiving and transmitting.
  • Step 507 The relay user equipment feeds back to the remote user equipment to agree to establish an edge link connection.
  • the base station can allocate the paired information to the base station by using the remote user equipment, and the base station can allocate suitable resources to the paired remote user equipment and the relay user equipment; thereby avoiding or reducing the allocation of the edge chain to the remote user equipment.
  • the road resource does not allocate resources for the paired relay user equipment to cause waste of resources, or avoids or reduces the situation where resource collision occurs when the remote user equipment and the paired relay user equipment are allocated overlapping resources.
  • the embodiment of the present invention provides a method for transmitting an edge link information, and the same content as that of Embodiment 1 is not described herein.
  • the side link information transmission method includes:
  • Step 601 The relay user equipment sends, to the base station, second resource request information for requesting allocation of edge link resources, where the second resource request information indicates that the relay user equipment is paired with one or more remote user equipments. .
  • the second resource request information may include a Cell Radio Network Temporary Identifier (C-RNTI) of one or more remote user equipments.
  • C-RNTI Cell Radio Network Temporary Identifier
  • the relay user equipment may receive connection request information sent by the remote user equipment for establishing an edge link connection, where the connection request information includes a C-RNTI of the remote user equipment.
  • FIG. 7 is another schematic diagram of an edge link information transmission method according to an embodiment of the present invention. As shown in FIG. 7, the edge link information transmission method includes:
  • Step 701 The remote user equipment performs a selection of the relay user equipment.
  • the remote user equipment has a ProSe UE ID
  • the relay user equipment has a ProSe Relay UE ID.
  • the remote user equipment can detect the edge link discovery signal sent by one or more user equipments, select one of the relay user equipments according to the preset condition, and obtain the ProSe Relay UE ID of the relay user equipment.
  • Step 702 The remote user equipment sends, to the base station, first resource request information for requesting allocation of edge link resources.
  • the first resource request information includes only the ProSe Relay UE ID and does not include the remote user equipment's own ProSe UE ID.
  • Step 703 The base station allocates a suitable edge link resource to the remote user equipment.
  • Step 704 The remote user equipment sends a connection request for establishing a side link connection to the relay user equipment on the allocated side link resource; the connection request information includes a C-RNTI of the remote user equipment.
  • Step 705 The relay user equipment sends second resource request information for requesting allocation of edge link resources to the base station; the second resource request information may include C-RNTI of one or more remote user equipments;
  • the relay user equipment after receiving the connection request of the remote user equipment, if the relay user equipment agrees to establish an edge link connection, the relay user equipment sends a request message to the base station, requesting allocation for the side link transmission. resource of.
  • the relay user equipment may send the C-RNTI of one or more paired remote user equipments to the base station.
  • the remote user equipment is in a connected state, so the remote user equipment remains in the base station.
  • C-RNTI After receiving the resource request information of the C-RNTI of the remote user equipment sent by the relay user equipment, the base station may learn that the relay user equipment is paired with one or more remote user equipments.
  • Step 706 The base station allocates a suitable edge link resource to the relay user equipment.
  • the base station may determine whether to allocate resources and allocate resources to the relay user equipment. If the resource is agreed to be allocated, the base station may allocate according to the information obtained in step 705. The appropriate edge link resources communicate to the relay user equipment.
  • the base station may allocate resources that do not overlap with the resources of the remote user equipment to the relay user equipment, and avoid conflicts between the half-duplex remote user equipment or the relay user equipment when receiving and transmitting.
  • Step 707 The relay user equipment feeds back to the remote user equipment to agree to establish an edge link connection.
  • the second resource request information includes an edge link user equipment identifier (ProSe UE ID) of one or more remote user equipments and a relay user equipment identifier of the relay user equipment (ProSe Relay) UE ID).
  • ProSe UE ID edge link user equipment identifier
  • ProSe Relay relay user equipment identifier of the relay user equipment
  • FIG. 8 is another schematic diagram of an edge link information transmission method according to an embodiment of the present invention. As shown in FIG. 8, the side link information transmission method includes:
  • Step 801 The remote user equipment performs a selection of the relay user equipment.
  • the remote user equipment has a ProSe UE ID
  • the relay user equipment has a ProSe Relay UE ID.
  • the remote user equipment can detect the edge link discovery signal sent by one or more user equipments, select one of the relay user equipments according to the preset condition, and obtain the ProSe Relay UE ID of the relay user equipment.
  • Step 802 The remote user equipment sends, to the base station, first resource request information for requesting allocation of edge link resources.
  • the first resource request information includes only the ProSe Relay UE ID and does not include the remote user equipment's own ProSe UE ID.
  • Step 803 The base station allocates a suitable edge link resource to the remote user equipment.
  • Step 804 The remote user equipment sends a connection request for establishing a side link connection to the relay user equipment on the allocated side link resource.
  • the relay user equipment can also obtain the ProSe UE ID of the paired remote user equipment.
  • Step 805 The relay user equipment sends the second resource request information for requesting the allocation of the side link resource to the base station;
  • the second resource request information may include the originating user equipment ID and the destination end user equipment ID;
  • the information for example, the ProSe UE ID of one or more remote user equipments and the ProSe Relay UE ID of the relay user equipment;
  • the relay user equipment after receiving the connection request of the remote user equipment, if the relay user equipment agrees to establish a side link connection, the relay user equipment sends a request message to the base station, requesting allocation for the side link transmission. resource of.
  • Step 806 The base station allocates an appropriate edge link resource to the relay user equipment.
  • the base station may decide whether to allocate resources and allocate resources to the relay user equipment. If the resource is agreed to be allocated, the base station may allocate according to the information obtained in step 805. The appropriate edge link resources communicate to the relay user equipment.
  • the base station may allocate resources that do not overlap with the resources of the remote user equipment to the relay user equipment, and avoid conflicts between the half-duplex remote user equipment or the relay user equipment when receiving and transmitting.
  • Step 807 The relay user equipment feeds back to the remote user equipment to agree to establish an edge link connection.
  • the base station can allocate suitable resources to the paired remote user equipment and the relay user equipment; thereby, the remote user equipment can be avoided or reduced.
  • Side link resources but no allocation of side link resources for the paired relay user equipment, resulting in wasted resources, or avoiding or reducing resource collisions when overlapping resources are allocated to remote user equipment and paired relay user equipment. .
  • the embodiment of the present invention provides an edge link information transmission apparatus, which corresponds to the side link information transmission method in Embodiment 1, and the same content is not described herein again.
  • FIG. 9 is a schematic diagram of an edge link information transmission apparatus according to an embodiment of the present invention, configured in a remote user equipment.
  • the side link information transmission device 900 includes:
  • the relay selection unit 901 selects a relay user equipment from one or more user equipments
  • the first request sending unit 902 sends, to the base station, first resource request information for requesting allocation of an edge link resource, where the first resource request information indicates that the remote user equipment and the relay user equipment have been configured. Correct.
  • the first resource request information may include: an originating user equipment ID and a destination end user equipment ID.
  • the request information for example, the ProSe UEID of the remote user equipment and the ProSe Relay UE ID of the relay user equipment.
  • the relay selection unit 901 may perform selection of the relay user equipment if the air interface signal strength of the remote user equipment is lower than a preset threshold.
  • the side link information transmission device 900 may further include:
  • connection request transmitting unit 903 transmits connection request information for establishing an edge link to the relay user equipment.
  • connection request information may further include a C-RNTI of the remote user equipment.
  • FIG. 9 only schematically shows some components of the edge link transmission device related to the present invention, but the present invention is not limited thereto, and other components for performing side link information transmission may refer to related technologies, where No longer.
  • the embodiment of the invention further provides a user equipment, which is configured with the edge link information transmission device 900 described above.
  • FIG. 10 is a schematic diagram of a user equipment according to an embodiment of the present invention.
  • the user device 1000 can include a central processing unit 100 and a memory 140; the memory 140 is coupled to the central processing unit 100.
  • the figure is exemplary; other types of structures may be used in addition to or in place of the structure to implement telecommunications functions or other functions.
  • the functionality of the side link information transmission device 900 can be integrated into the central processor 100.
  • the central processing unit 100 may be configured to implement the side link information transmission method as described in Embodiment 1.
  • the side link information transmission device 900 can be configured separately from the central processing unit 100.
  • the side link information transmission device 900 can be configured as a chip connected to the central processing unit 100, and controlled by a central processing unit. The function of the side link information transmission device 900 is implemented.
  • the user equipment 1000 may further include: a communication module 110, an input unit 120, an audio processing unit 130, a memory 140, a camera 150, a display 160, and a power source 170.
  • a communication module 110 the user equipment 1000 does not have to include all the components shown in FIG. 10, and the above components are not required; in addition, the user equipment 1000 may further include components not shown in FIG. There are technologies.
  • FIG. 11 is a schematic diagram of an edge link information transmission apparatus according to an embodiment of the present invention, which is configured in a base station. As shown in FIG. 11, the side link information transmission device 1100 includes:
  • the first request receiving unit 1101 receives, by the remote user equipment, first resource request information for requesting allocation of an edge link resource, where the first resource request information indicates that the remote user equipment and the relay user equipment have been paired .
  • the first resource request information may include: an originating user equipment ID and a destination end user equipment ID.
  • the request information is represented, for example, as a ProSe UEID of the remote user equipment and a ProSe Relay UE ID of the relay user equipment.
  • FIG. 11 only schematically shows some components of the edge link transmission device related to the present invention, but the present invention is not limited thereto, and other components for performing side link information transmission may refer to related technologies, where No longer.
  • the embodiment of the invention further provides a base station, which is configured with the above-mentioned side link information transmission device 1100.
  • FIG. 12 is a schematic diagram of a structure of a base station according to an embodiment of the present invention.
  • base station 1200 can include a central processing unit (CPU) 200 and memory 210; and memory 210 is coupled to central processing unit 200.
  • the memory 210 can store various data; in addition, a program for information processing is stored, and the program is executed under the control of the central processing unit 200.
  • the base station 1200 can implement the edge link information transmission method as described in Embodiment 1.
  • the central processing unit 200 can be configured to implement the functions of the side link information transmission device 1100.
  • the base station 1200 may further include: a transceiver 220, an antenna 230, and the like; wherein the functions of the foregoing components are similar to those of the prior art, and details are not described herein again. It should be noted that the base station 1200 does not have to include all the components shown in FIG. 12; in addition, the base station 1200 may further include components not shown in FIG. 12, and reference may be made to the prior art.
  • the base station can transmit the paired information to the base station by using the remote user equipment, and the base station can allocate suitable resources to the paired remote user equipment and the relay user equipment; thereby, the remote user equipment can be avoided or reduced.
  • Link resources but no allocation of side link resources for the paired relay user equipment, resulting in wasted resources, or avoiding or reducing the occurrence of resource collisions when overlapping resources are allocated to the remote user equipment and the paired relay user equipment.
  • the embodiment of the invention provides an edge link information transmission device, which corresponds to the edge link information transmission in Embodiment 2.
  • the method of input, the same content will not be described again.
  • FIG. 13 is a schematic diagram of an edge link information transmission apparatus according to an embodiment of the present invention, configured in a relay user equipment. As shown in FIG. 13, the side link information transmission device 1300 includes:
  • the second request sending unit 1301 sends, to the base station, second resource request information for requesting allocation of edge link resources, where the second resource request information indicates that the relay user equipment and one or more remote user equipments have been pair.
  • the second resource request information may include: a C-RNTI of one or more remote user equipments.
  • the edge link information transmission apparatus 1300 may further include:
  • the connection request receiving unit 1302 receives connection request information for establishing an edge link sent by the remote user equipment, where the connection request information includes a C-RNTI of the remote user equipment.
  • the second resource request information may include: an originating user equipment ID and a destination end user equipment ID.
  • the request information for example, the ProSe UE ID of one or more remote user equipments and the ProSe Relay UE ID of the relay user equipment.
  • FIG. 13 only schematically shows some components of the edge link transmission device related to the present invention, but the present invention is not limited thereto, and other components for performing side link information transmission may refer to related technologies, where No longer.
  • the embodiment of the invention further provides a user equipment, which is configured with the edge link information transmission device 1300 described above.
  • the configuration of the user equipment can be as shown in FIG.
  • FIG. 14 is a schematic diagram of an edge link information transmission apparatus according to an embodiment of the present invention, which is configured in a base station. As shown in FIG. 14, the side link information transmission device 1400 includes:
  • the second request receiving unit 1401 receives second resource request information sent by the relay user equipment for requesting allocation of the side link resource, where the second resource request information indicates the relay user equipment and one or more remote User devices have been paired.
  • FIG. 14 only schematically shows some components of the edge link transmission device related to the present invention, but the present invention is not limited thereto, and other components for performing side link information transmission may refer to related technologies, where No longer.
  • the embodiment of the invention further provides a base station, which is configured with the edge link information transmission device 1400 described above.
  • the configuration of the base station can be as shown in FIG.
  • the base station can allocate suitable resources to the paired remote user equipment and the relay user equipment; thereby, the remote user equipment can be avoided or reduced.
  • Side link resources but no allocation of side link resources for the paired relay user equipment, resulting in wasted resources, or avoiding or reducing resource collisions when overlapping resources are allocated to remote user equipment and paired relay user equipment. .
  • FIG. 15 is a schematic diagram of a communication system according to an embodiment of the present invention.
  • the communication system 1500 includes a relay user equipment 1501, a remote user equipment 1502, and a base station 1503.
  • the remote user equipment 1502 selects the relay user equipment 1501 from one or more user equipments, and transmits, to the base station 1503, first resource request information for requesting allocation of side link resources.
  • the first resource request information indicates that the remote user equipment 1502 has been paired with the relay user equipment 1501;
  • the first resource request information may include: an originating user equipment ID and a destination end user equipment ID.
  • the request information for example, the ProSe UE ID of the remote user equipment and the ProSe Relay UE ID of the relay user equipment.
  • the relay user equipment 1501 sends, to the base station 1503, second resource request information for requesting allocation of edge link resources, wherein the second resource request information indicates the relay user equipment 1501 and The remote user device 1502 has been paired;
  • the second resource request information may include: an originating user equipment ID and a destination end user equipment ID.
  • request information for example, a C-RNTI represented by one or more remote user equipments 1502;
  • the relay user equipment 1501 may further receive connection request information sent by the remote user equipment 1502 for establishing an edge link connection, where the connection request information includes a C-RNTI of the remote user equipment 1502.
  • the relay user equipment 1501 sends, to the base station 1503, second resource request information for requesting allocation of edge link resources, wherein the second resource request information indicates the relay user equipment 1501 and The remote user device 1502 has been paired;
  • the second resource request information may include: an originating user equipment ID and a destination end user equipment ID.
  • the request information for example, the ProSe Relay UE ID of the relay user equipment 1501 and one or more ProSe UE ID of remote user equipment 1502.
  • An embodiment of the present invention provides a computer readable program, wherein when the program is executed in a user equipment, the program causes a computer to perform edge link information transmission as described in Embodiment 1 or 2 in the user equipment. method.
  • An embodiment of the present invention provides a storage medium storing a computer readable program, wherein the computer readable program causes a computer to execute an edge link information transmission method as described in Embodiment 1 or 2 in a user equipment.
  • An embodiment of the present invention provides a computer readable program, wherein the program causes a computer to execute an edge link information transmission method as described in Embodiment 1 or 2 in the base station when the program is executed in a base station.
  • An embodiment of the present invention provides a storage medium storing a computer readable program, wherein the computer readable program causes a computer to execute an edge link information transmission method as described in Embodiment 1 or 2 in a base station.
  • the above apparatus and method of the present invention may be implemented by hardware or by hardware in combination with software.
  • the present invention relates to a computer readable program that, when executed by a logic component, enables the logic component to implement the apparatus or components described above, or to cause the logic component to implement the various methods described above Or steps.
  • the present invention also relates to a storage medium for storing the above program, such as a hard disk, a magnetic disk, an optical disk, a DVD, a flash memory, or the like.
  • One or more of the functional blocks described in the figures and/or one or more combinations of functional blocks may be implemented as a general purpose processor, digital signal processor (DSP) for performing the functions described herein.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • One or more of the functional blocks described with respect to the figures and/or one or more combinations of functional blocks may also be implemented as a combination of computing devices, eg, a combination of a DSP and a microprocessor, multiple microprocessors One or more microprocessors in conjunction with DSP communication or any other such configuration.

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Abstract

一种边链路信息传输装置、方法以及通信系统。所述方法包括：远程用户设备从一个或多个用户设备中选择中继用户设备；以及向基站发送用于请求分配边链路资源的第一资源请求信息，其中所述第一资源请求信息指示所述远程用户设备与所述中继用户设备已配对。由此，可以避免或者减少为远程用户设备分配了边链路资源但是没有为配对的中继用户设备分配边链路资源而导致资源浪费的情况，或者避免或者减少为远程用户设备和配对的中继用户设备分配了重叠资源而出现资源碰撞的情况。

Description

边链路信息传输装置、方法以及通信系统 技术领域
本发明实施例涉及通信技术领域，特别涉及一种边链路(SideLink)信息传输装置、方法以及通信系统。
背景技术
近年来，无线通信技术得到了高速发展，3GPP标准化已经发展到Rel.13，关键技术涵盖了小小区(small cell)的广泛配置、载波聚合(CA，carrier aggregation)、3D多天线技术(例如MIMO，Multiple Input Multiple Output)、非授权频段的LTE化(例如Licensed-Assisted-Access)等。
边链路(Sidelink)通信方式是指数据包无需通过核心网和基站，用户设备UE1和UE2之间可以直接建立通信链路而进行通信。边链路通信也可以称为设备到设备(D2D，Device to Device)通信。在进行边链路(Sidelink)通信前，一般会进行边链路发现过程。例如，UE1要通过边链路通信方式发送信息给UE2之前，先要发现UE2是否在附近。
图1是边链路通信的一示意图，示出了两个都在基站(例如eNB)覆盖下UE(UE1和UE2)进行边链路发现或建立边链路通信的情况。图2是边链路通信的另一示意图，示出了一个UE(UE1)在基站覆盖下而另一个UE(UE2)不在基站覆盖下时，进行边链路发现或建立边链路通信的情况。图3是边链路通信的另一示意图，示出了两个都不在基站覆盖下的UE(UE1和UE2)进行边链路发现或建立边链路通信的情况。
边链路通信方式可以用于扩大小区覆盖范围。下面结合图1和图2给出两个扩大覆盖范围的例子。
场景1：如图1所示，一个用户设备(UE2)位于小区边缘而信号比较弱，很可能即将离开该小区的覆盖。另外，附近有被网络授权的具有中继功能的用户设备(例如UE1)。为了避免业务中断，UE2发现该中继(也可称为中继用户设备)UE1后，可以通过该中继UE1接入基站，继续进行正常的业务通信。
场景2：如图2所示，一个用户设备(例如UE2)位于没有网络覆盖的区域。并且，附近有被网络授权的具有中继功能的用户设备(例如UE1)。为了接入网络进行 通信，UE2发现位于小区覆盖内的中继UE1后，可以通过该中继UE1接入基站。
在上述场景描述中，UE2可以被称为远程用户设备(remote UE)，该远程用户设备可能位于小区覆盖之内，也可能位于小区覆盖之外。具有中继功能的用户设备(例如UE1)可以被称为中继用户设备，也被称为终端-网络间中继(UE-Network relay)，也可以简称为中继。
此外，如果某一远程用户设备和一中继用户设备被选择(例如由远程用户设备自己选择或由基站选择等等)将进行边链路通信，则可以称该远程用户设备和该中继用户设备已被配对。
应该注意，上面对技术背景的介绍只是为了方便对本发明的技术方案进行清楚、完整的说明，并方便本领域技术人员的理解而阐述的。不能仅仅因为这些方案在本发明的背景技术部分进行了阐述而认为上述技术方案为本领域技术人员所公知。
发明内容
但是，发明人发现在现有系统中，基站有可能为远程用户设备分配了边链路资源但是没有为配对的中继用户设备分配边链路资源，从而出现资源浪费的情况；或者为远程用户设备和配对的中继用户设备分配了重叠资源，从而出现资源碰撞的情况。
本发明实施例提供一种边链路信息传输装置、方法以及通信系统。通过将远程用户设备与中继用户设备已配对的信息发送给基站，可以避免或减少资源浪费或资源碰撞的情况。
根据本发明实施例的第一个方面，提供一种边链路信息传输方法，应用于远程用户设备，所述边链路信息传输方法包括：
远程用户设备从一个或多个用户设备中选择中继用户设备；
向基站发送用于请求分配边链路资源的第一资源请求信息；其中所述第一资源请求信息指示所述远程用户设备与所述中继用户设备已配对。
根据本发明实施例的第二个方面，提供一种边链路信息传输装置，配置于远程用户设备中，所述边链路信息传输装置包括：
中继选择单元，从一个或多个用户设备中选择中继用户设备；
第一请求发送单元，向基站发送用于请求分配边链路资源的第一资源请求信息；其中所述第一资源请求信息指示所述远程用户设备与所述中继用户设备已配对。
根据本发明实施例的第三个方面，提供一种边链路信息传输方法，应用于中继用户设备，所述边链路信息传输方法包括：
中继用户设备向基站发送用于请求分配边链路资源的第二资源请求信息；其中所述第二资源请求信息指示所述中继用户设备与一个或多个远程用户设备已配对。
根据本发明实施例的第四个方面，提供一种边链路信息传输装置，配置于中继用户设备中，所述边链路信息传输装置包括：
第二请求发送单元，向基站发送用于请求分配边链路资源的第二资源请求信息；其中所述第二资源请求信息指示所述中继用户设备与一个或多个远程用户设备已配对。
根据本发明实施例的第五个方面，提供一种通信系统，所述通信系统包括：远程用户设备、中继用户设备以及基站；
其中，所述远程用户设备从一个或多个用户设备中选择所述中继用户设备，以及向所述基站发送用于请求分配边链路资源的第一资源请求信息，其中所述第一资源请求信息指示所述远程用户设备与所述中继用户设备已配对；
或者，所述中继用户设备向所述基站发送用于请求分配边链路资源的第二资源请求信息，其中所述第二资源请求信息指示所述中继用户设备与一个或多个所述远程用户设备已配对。
根据本发明实施例的又一个方面，提供一种计算机可读程序，其中当在基站中执行所述程序时，所述程序使得计算机在所述基站中执行如上所述的边链路信息传输方法。
根据本发明实施例的又一个方面，提供一种存储有计算机可读程序的存储介质，其中所述计算机可读程序使得计算机在基站中执行如上所述的边链路信息传输方法。
根据本发明实施例的又一个方面，提供一种计算机可读程序，其中当在用户设备中执行所述程序时，所述程序使得计算机在所述用户设备中执行如上所述的边链路信息传输方法。
根据本发明实施例的又一个方面，提供一种存储有计算机可读程序的存储介质，其中所述计算机可读程序使得计算机在用户设备中执行如上所述的边链路信息传输方法。
本发明实施例的有益效果在于：通过远程用户设备或者中继用户设备将远程用户 设备与中继用户设备已配对的信息发送给基站，基站可以为配对的远程用户设备和中继用户设备分配合适的资源；由此，可以避免或者减少为远程用户设备分配了边链路资源但是没有为配对的中继用户设备分配边链路资源而导致资源浪费的情况，或者避免或者减少为远程用户设备和配对的中继用户设备分配了重叠资源而出现资源碰撞的情况。
参照后文的说明和附图，详细公开了本发明的特定实施方式，指明了本发明的原理可以被采用的方式。应该理解，本发明的实施方式在范围上并不因而受到限制。在所附权利要求的条款的范围内，本发明的实施方式包括许多改变、修改和等同。
针对一种实施方式描述和/或示出的特征可以以相同或类似的方式在一个或更多个其它实施方式中使用，与其它实施方式中的特征相组合，或替代其它实施方式中的特征。
应该强调，术语“包括/包含”在本文使用时指特征、整件、步骤或组件的存在，但并不排除一个或更多个其它特征、整件、步骤或组件的存在或附加。
附图说明
参照以下的附图可以更好地理解本发明的很多方面。附图中的部件不是成比例绘制的，而只是为了示出本发明的原理。为了便于示出和描述本发明的一些部分，附图中对应部分可能被放大或缩小。
在本发明的一个附图或一种实施方式中描述的元素和特征可以与一个或更多个其它附图或实施方式中示出的元素和特征相结合。此外，在附图中，类似的标号表示几个附图中对应的部件，并可用于指示多于一种实施方式中使用的对应部件。
图1是边链路通信的一示意图；
图2是边链路通信的另一示意图；
图3是边链路通信的另一示意图；
图4是本发明实施例1的边链路信息传输方法的一示意图；
图5是本发明实施例1的边链路信息传输方法的另一示意图；
图6是本发明实施例2的边链路信息传输方法的一示意图；
图7是本发明实施例2的边链路信息传输方法的另一示意图；
图8是本发明实施例2的边链路信息传输方法的另一示意图；
图9是本发明实施例3的边链路信息传输装置的一示意图；
图10是本发明实施例3的用户设备的一示意图；
图11是本发明实施例3的边链路信息传输装置的另一示意图；
图12是本发明实施例3的基站的一示意图；
图13是本发明实施例4的边链路信息传输装置的一示意图；
图14是本发明实施例4的边链路信息传输装置的另一示意图；
图15是本发明实施例5的通信系统的一示意图。
具体实施方式
参照附图，通过下面的说明书，本发明的前述以及其它特征将变得明显。在说明书和附图中，具体公开了本发明的特定实施方式，其表明了其中可以采用本发明的原则的部分实施方式，应了解的是，本发明不限于所描述的实施方式，相反，本发明包括落入所附权利要求的范围内的全部修改、变型以及等同物。
以图1所示的场景为例，位于小区覆盖内的远程用户设备UE2发现并选择一个中继用户设备UE1后，远程用户设备UE2会发送信息告诉基站已经选择了该中继用户设备UE1。基站收到该信息后，会给该远程用户设备UE2分配边链路资源。
远程用户设备UE2在分配的资源上可以发送建立边链路的连接请求给选中的中继用户设备UE1。中继用户设备UE1收到该信息后，将向基站发送请求边链路资源的请求信息。
基站收到该中继用户设备UE1发送的请求信息之后，在基站不知道该远程用户设备UE2和中继用户设备UE1是配对用户设备的情况下，基站可能基于资源不足的考虑，拒绝分配边链路资源给中继用户设备UE1。由此，导致出现基站已经分配边链路资源给远程用户设备UE2，但不分配边链路资源给中继用户设备UE1的情形，从而导致资源浪费的情况。
此外，基站收到该中继用户设备UE1发送的请求信息之后，在基站不知道该远程用户设备UE2和中继用户设备UE1是配对用户设备的情况下，基站可能给远程用户设备UE2和中继用户设备UE1分配重叠的边链路资源，从而导致资源碰撞的情况。
以下对本发明实施例进行详细说明。值得注意的是，本发明实施例以图1所示的场景为例进行说明，但本发明不限于此，例如还可以适用于其他的场景下。
实施例1
本发明实施例提供一种边链路信息传输方法。图4是本发明实施例的边链路信息传输方法的一示意图，从远程用户设备一侧进行说明。
如图4所示，所述边链路信息传输方法包括：
步骤401，远程用户设备从一个或多个用户设备中选择中继用户设备；
步骤402，远程用户设备向基站发送用于请求分配边链路资源的第一资源请求信息，其中所述第一资源请求信息指示所述远程用户设备与所述中继用户设备已配对。
在本实施例中，远程用户设备可以在空口信号强度低于预设阈值的情况下进行中继用户设备的选择；但本发明不限于此，还可以在其他的触发条件下进行中继用户设备的选择。其中，中继用户设备是具有中继能力的用户设备，即预先获得了边链路功能(ProSe Function)实体的授权，具有中继用户设备标识(ProSe Relay UE ID)。
在本实施例中，所述第一资源请求信息具体可以包含：发端用户设备ID和配对的目的端用户设备ID。在该请求信息中，例如表现为所述远程用户设备的边链路用户设备标识(ProSe UE ID)以及所述中继用户设备的中继用户设备标识(ProSe Relay UE ID)。关于ProSe UE ID和ProSe Relay UE ID的具体内容可以参考相关技术。
因此，与现有技术不同的是，本发明实施例中可以利用资源请求信息指示远程用户设备与中继用户设备已配对(例如资源请求信息包括该ProSe UE ID和该ProSe Relay UE ID)，由此基站可以获知边链路配对用户设备的信息，从而可以为远程用户设备和中继用户设备分配合适的资源。
图5是本发明实施例的边链路信息传输方法的另一示意图。如图5所示，所述边链路信息传输方法包括：
步骤501，远程用户设备进行中继用户设备的选择；
在本实施例中，远程用户设备具有ProSe UE ID，中继用户设备具有ProSe Relay UE ID。例如远程用户设备可以检测一个或多个用户设备发送的边链路发现信号，根据预设条件从其中选择出一个中继用户设备，并且可以获得该中继用户设备的ProSe Relay UE ID。
步骤502，远程用户设备向基站发送用于请求分配边链路资源的第一资源请求信息，其中所述第一资源请求信息包括发端用户设备ID和目的端用户设备ID；在该 请求信息中，例如表现为该ProSe UE ID和该ProSe Relay UE ID。
步骤503，基站向远程用户设备分配合适的边链路资源；
步骤504，远程用户设备在被分配的边链路资源上向中继用户设备发送建立边链路连接的连接请求；
其中，该请求信息例如还可以包含远程用户设备的C-RNTI。
步骤505，中继用户设备向基站发送用于请求分配边链路资源的第二资源请求信息；
在本实施例中，中继用户设备在收到远程用户设备的连接请求后，如果同意建立边链路连接，则该中继用户设备将给基站发送请求信息，请求分配用于边链路传输的资源。
步骤506，基站向中继用户设备分配合适的边链路资源；
在本实施例中，基站收到中继用户设备发送的请求信息后，可以决定是否分配资源以及分配怎样的资源给中继用户设备，如果同意分配资源，基站可以根据步骤502获得的信息，分配合适的边链路资源给中继用户设备进行通信。
例如，基站可能会分配与远程用户设备的资源不重叠的资源给中继用户设备，避免半双工的远程用户设备或中继用户设备在接收和发送时出现冲突。
步骤507，中继用户设备向远程用户设备反馈同意建立边链路连接。
值得注意的是，以上过程仅用于示意性说明，但本发明不限于此，例如图5中各步骤的执行顺序可以根据实际情况进行调整，此外也可以根据实际情况删除其中的一个或多个步骤。
由上述实施例可知，通过远程用户设备将已配对信息发送给基站，基站可以为配对的远程用户设备和中继用户设备分配合适的资源；由此，避免或者减少为远程用户设备分配了边链路资源但是没有为配对的中继用户设备分配边链路资源而导致资源浪费的情况，或者避免或者减少为远程用户设备和配对的中继用户设备分配了重叠资源而出现资源碰撞的情况。
实施例2
本发明实施例提供一种边链路信息传输方法，与实施例1相同的内容不再赘述。
图6是本发明实施例的边链路信息传输方法的一示意图，从中继用户设备一侧进 行说明。如图6所示，所述边链路信息传输方法包括：
步骤601，中继用户设备向基站发送用于请求分配边链路资源的第二资源请求信息，其中所述第二资源请求信息指示所述中继用户设备与一个或多个远程用户设备已配对。
在一个实施方式中，所述第二资源请求信息可以包含一个或多个远程用户设备的小区无线网络临时标识(C-RNTI，Cell Radio Network Temporary Identifier)。其中，中继用户设备可以接收所述远程用户设备发送的用于建立边链路连接的连接请求信息，该连接请求信息包含所述远程用户设备的C-RNTI。
图7是本发明实施例的边链路信息传输方法的另一示意图。如图7所示，所述边链路信息传输方法包括：
步骤701，远程用户设备进行中继用户设备的选择；
在本实施例中，远程用户设备具有ProSe UE ID，中继用户设备具有ProSe Relay UE ID。例如远程用户设备可以检测一个或多个用户设备发送的边链路发现信号，根据预设条件从其中选择出一个中继用户设备，并且可以获得该中继用户设备的ProSe Relay UE ID。
步骤702，远程用户设备向基站发送用于请求分配边链路资源的第一资源请求信息；
例如该第一资源请求信息中只包含ProSe Relay UE ID而不包含该远程用户设备自己的ProSe UE ID。
步骤703，基站向远程用户设备分配合适的边链路资源；
步骤704，远程用户设备在被分配的边链路资源上向中继用户设备发送建立边链路连接的连接请求；该连接请求信息包含所述远程用户设备的C-RNTI。
步骤705，中继用户设备向基站发送用于请求分配边链路资源的第二资源请求信息；所述第二资源请求信息可以包含一个或多个远程用户设备的C-RNTI；
在本实施例中，中继用户设备在收到远程用户设备的连接请求后，如果同意建立边链路连接，则该中继用户设备将向基站发送请求信息，请求分配用于边链路传输的资源。其中，中继用户设备可以将一个或多个已配对的远程用户设备的C-RNTI发送给基站。
在本实施例中，远程用户设备处于连接态，因此在基站中保留有该远程用户设备 的C-RNTI。当基站收到中继用户设备发送的包含远程用户设备的C-RNTI的资源请求信息之后，可以获知中继用户设备与一个或多个远程用户设备已配对。
步骤706，基站向中继用户设备分配合适的边链路资源；
在本实施例中，基站收到中继用户设备发送的请求信息后，可以决定是否分配资源以及分配怎样的资源给中继用户设备，如果同意分配资源，基站可以根据步骤705获得的信息，分配合适的边链路资源给中继用户设备进行通信。
例如，基站可能会分配与远程用户设备的资源不重叠的资源给中继用户设备，避免半双工的远程用户设备或中继用户设备在接收和发送时出现冲突。
步骤707，中继用户设备向远程用户设备反馈同意建立边链路连接。
在另一个实施方式中，所述第二资源请求信息包含一个或多个远程用户设备的边链路用户设备标识(ProSe UE ID)以及所述中继用户设备的中继用户设备标识(ProSe Relay UE ID)。
图8是本发明实施例的边链路信息传输方法的另一示意图。如图8所示，所述边链路信息传输方法包括：
步骤801，远程用户设备进行中继用户设备的选择；
在本实施例中，远程用户设备具有ProSe UE ID，中继用户设备具有ProSe Relay UE ID。例如远程用户设备可以检测一个或多个用户设备发送的边链路发现信号，根据预设条件从其中选择出一个中继用户设备，并且可以获得该中继用户设备的ProSe Relay UE ID。
步骤802，远程用户设备向基站发送用于请求分配边链路资源的第一资源请求信息；
例如该第一资源请求信息中只包含ProSe Relay UE ID而不包含该远程用户设备自己的ProSe UE ID。
步骤803，基站向远程用户设备分配合适的边链路资源；
步骤804，远程用户设备在被分配的边链路资源上向中继用户设备发送建立边链路连接的连接请求。
此外，中继用户设备也可以获得配对的远程用户设备的ProSe UE ID。
步骤805，中继用户设备向基站发送用于请求分配边链路资源的第二资源请求信息；所述第二资源请求信息可以包含发端用户设备ID和目的端用户设备ID；在该请 求信息中，例如表现为：一个或多个远程用户设备的ProSe UE ID以及所述中继用户设备的ProSe Relay UE ID；
在本实施例中，中继用户设备在收到远程用户设备的连接请求后，如果同意建立边链路连接，则该中继用户设备将给基站发送请求信息，请求分配用于边链路传输的资源。
步骤806，基站向中继用户设备分配合适的边链路资源；
在本实施例中，基站收到中继用户设备发送的请求信息后，可以决定是否分配资源以及分配怎样的资源给中继用户设备，如果同意分配资源，基站可以根据步骤805获得的信息，分配合适的边链路资源给中继用户设备进行通信。
例如，基站可能会分配与远程用户设备的资源不重叠的资源给中继用户设备，避免半双工的远程用户设备或中继用户设备在接收和发送时出现冲突。
步骤807，中继用户设备向远程用户设备反馈同意建立边链路连接。
值得注意的是，以上过程仅用于示意性说明，但本发明不限于此，例如图7或图8中各步骤的执行顺序可以根据实际情况进行调整，此外也可以根据实际情况删除其中的一个或多个步骤。
由上述实施例可知，通过中继用户设备将已配对信息发送给基站，基站可以为配对的远程用户设备和中继用户设备分配合适的资源；由此，可以避免或者减少为远程用户设备分配了边链路资源但是没有为配对的中继用户设备分配边链路资源而导致资源浪费的情况，或者避免或者减少为远程用户设备和配对的中继用户设备分配了重叠资源而出现资源碰撞的情况。
实施例3
本发明实施例提供一种边链路信息传输装置，对应于实施例1中的边链路信息传输方法，相同的内容不再赘述。
图9是本发明实施例的边链路信息传输装置的一示意图，配置于远程用户设备中。如图9所示，所述边链路信息传输装置900包括：
中继选择单元901，从一个或多个用户设备中选择中继用户设备；
第一请求发送单元902，向基站发送用于请求分配边链路资源的第一资源请求信息，其中所述第一资源请求信息指示所述远程用户设备与所述中继用户设备已被配 对。
在本实施例中，所述第一资源请求信息可以包含：发端用户设备ID和目的端用户设备ID。在该请求信息中，例如表现为所述远程用户设备的ProSe UEID以及所述中继用户设备的ProSe Relay UE ID。
在本实施例中，所述中继选择单元901可以在所述远程用户设备的空口信号强度低于预设阈值的情况下进行中继用户设备的选择。
如图9所示，所述边链路信息传输装置900还可以包括：
连接请求发送单元903，向中继用户设备发送用于建立边链路的连接请求信息。
例如，所述连接请求信息还可以包含所述远程用户设备的C-RNTI
值得注意的是，图9仅示意性示出了边链路传输装置的与本发明相关的部分部件，但本发明不限于此，进行边链路信息传输的其他部件可以参考相关技术，此处不再赘述。
本发明实施例还提供一种用户设备，配置有上述的边链路信息传输装置900。
图10是本发明实施例的用户设备的一示意图。如图10所示，该用户设备1000可以包括中央处理器100和存储器140；存储器140耦合到中央处理器100。值得注意的是，该图是示例性的；还可以使用其他类型的结构，来补充或代替该结构，以实现电信功能或其他功能。
在一个实施方式中，边链路信息传输装置900的功能可以被集成到中央处理器100中。其中，中央处理器100可以被配置为实现如实施例1所述的边链路信息传输方法。
在另一个实施方式中，边链路信息传输装置900可以与中央处理器100分开配置，例如可以将边链路信息传输装置900配置为与中央处理器100连接的芯片，通过中央处理器的控制来实现边链路信息传输装置900的功能。
如图10所示，该用户设备1000还可以包括：通信模块110、输入单元120、音频处理单元130、存储器140、照相机150、显示器160、电源170。其中，上述部件的功能与现有技术类似，此处不再赘述。值得注意的是，用户设备1000也并不是必须要包括图10中所示的所有部件，上述部件并不是必需的；此外，用户设备1000还可以包括图10中没有示出的部件，可以参考现有技术。
图11是本发明实施例的边链路信息传输装置的一示意图，配置于基站中。如图 11所示，所述边链路信息传输装置1100包括：
第一请求接收单元1101，接收远程用户设备发送的用于请求分配边链路资源的第一资源请求信息，其中所述第一资源请求信息指示所述远程用户设备与中继用户设备已被配对。
在本实施例中，第一资源请求信息可以包含：发端用户设备ID和目的端用户设备ID。在该请求信息中，例如表现为远程用户设备的ProSe UEID以及中继用户设备的ProSe Relay UE ID。
值得注意的是，图11仅示意性示出了边链路传输装置的与本发明相关的部分部件，但本发明不限于此，进行边链路信息传输的其他部件可以参考相关技术，此处不再赘述。
本发明实施例还提供一种基站，该基站配置有上述的边链路信息传输装置1100。
图12是本发明实施例的基站的一构成示意图。如图12所示，基站1200可以包括：中央处理器(CPU)200和存储器210；存储器210耦合到中央处理器200。其中该存储器210可存储各种数据；此外还存储信息处理的程序，并且在中央处理器200的控制下执行该程序。
其中，基站1200可以实现如实施例1所述的边链路信息传输方法。中央处理器200可以被配置为实现边链路信息传输装置1100的功能。
此外，如图12所示，基站1200还可以包括：收发机220和天线230等；其中，上述部件的功能与现有技术类似，此处不再赘述。值得注意的是，基站1200也并不是必须要包括图12中所示的所有部件；此外，基站1200还可以包括图12中没有示出的部件，可以参考现有技术。
由上述实施例可知，通过远程用户设备将已配对信息发送给基站，基站可以为配对的远程用户设备和中继用户设备分配合适的资源；由此，可以避免或者减少为远程用户设备分配了边链路资源但是没有为配对的中继用户设备分配边链路资源而导致资源浪费的情况，或者避免或者减少为远程用户设备和配对的中继用户设备分配了重叠资源而出现资源碰撞的情况。
实施例4
本发明实施例提供一种边链路信息传输装置，对应于实施例2中的边链路信息传 输方法，相同的内容不再赘述。
图13是本发明实施例的边链路信息传输装置的一示意图，配置于中继用户设备中。如图13所示，所述边链路信息传输装置1300包括：
第二请求发送单元1301，向基站发送用于请求分配边链路资源的第二资源请求信息，其中所述第二资源请求信息指示所述中继用户设备与一个或多个远程用户设备已被配对。
在一个实施方式中，所述第二资源请求信息可以包含：一个或多个远程用户设备的C-RNTI。
如图13所示，所述边链路信息传输装置1300还可以包括：
连接请求接收单元1302，接收所述远程用户设备发送的用于建立边链路的连接请求信息，其中所述连接请求信息包含所述远程用户设备的C-RNTI。
在另一个实施方式中，所述第二资源请求信息可以包含：发端用户设备ID和目的端用户设备ID。在该请求信息中，例如表现为一个或多个远程用户设备的ProSe UEID以及所述中继用户设备的ProSe Relay UE ID。
值得注意的是，图13仅示意性示出了边链路传输装置的与本发明相关的部分部件，但本发明不限于此，进行边链路信息传输的其他部件可以参考相关技术，此处不再赘述。
本发明实施例还提供一种用户设备，配置有上述的边链路信息传输装置1300。其中，该用户设备的构成可以如图10所示。
图14是本发明实施例的边链路信息传输装置的一示意图，配置于基站中。如图14所示，所述边链路信息传输装置1400包括：
第二请求接收单元1401，接收中继用户设备发送的用于请求分配边链路资源的第二资源请求信息，其中所述第二资源请求信息指示所述中继用户设备与一个或多个远程用户设备已被配对。
值得注意的是，图14仅示意性示出了边链路传输装置的与本发明相关的部分部件，但本发明不限于此，进行边链路信息传输的其他部件可以参考相关技术，此处不再赘述。
本发明实施例还提供一种基站，配置有上述的边链路信息传输装置1400。其中，该基站的构成可以如图12所示。
由上述实施例可知，通过中继用户设备将已配对信息发送给基站，基站可以为配对的远程用户设备和中继用户设备分配合适的资源；由此，可以避免或者减少为远程用户设备分配了边链路资源但是没有为配对的中继用户设备分配边链路资源而导致资源浪费的情况，或者避免或者减少为远程用户设备和配对的中继用户设备分配了重叠资源而出现资源碰撞的情况。
实施例5
本发明实施例还提供一种通信系统，与实施例1至4相同的内容不再赘述。图15是本发明实施例的通信系统的一示意图，如图15所示，所述通信系统1500包括：中继用户设备1501、远程用户设备1502以及基站1503。
在一个实施方式中，远程用户设备1502从一个或多个用户设备中选择所述中继用户设备1501，以及向所述基站1503发送用于请求分配边链路资源的第一资源请求信息，所述第一资源请求信息指示所述远程用户设备1502与所述中继用户设备1501已配对；
其中，所述第一资源请求信息可以包含：发端用户设备ID和目的端用户设备ID。在该请求信息中，例如表现为所述远程用户设备的ProSe UE ID以及所述中继用户设备的ProSe Relay UE ID。
在另一个实施方式中，中继用户设备1501向所述基站1503发送用于请求分配边链路资源的第二资源请求信息，其中所述第二资源请求信息指示所述中继用户设备1501与所述远程用户设备1502已配对；
其中，所述第二资源请求信息可以包含：发端用户设备ID和目的端用户设备ID。在该请求信息中，例如表现为一个或多个远程用户设备1502的C-RNTI；
所述中继用户设备1501还可以接收所述远程用户设备1502发送的用于建立边链路连接的连接请求信息，其中连接请求信息包含远程用户设备1502的C-RNTI。
在另一个实施方式中，中继用户设备1501向所述基站1503发送用于请求分配边链路资源的第二资源请求信息，其中所述第二资源请求信息指示所述中继用户设备1501与所述远程用户设备1502已配对；
其中，所述第二资源请求信息可以包含：发端用户设备ID和目的端用户设备ID。在该请求信息中，例如表现为中继用户设备1501的ProSe Relay UE ID以及一个或多 个远程用户设备1502的ProSe UE ID。
本发明实施例提供一种计算机可读程序，其中当在用户设备中执行所述程序时，所述程序使得计算机在所述用户设备中执行如实施例1或2所述的边链路信息传输方法。
本发明实施例提供一种存储有计算机可读程序的存储介质，其中所述计算机可读程序使得计算机在用户设备中执行如实施例1或2所述的边链路信息传输方法。
本发明实施例提供一种计算机可读程序，其中当在基站中执行所述程序时，所述程序使得计算机在所述基站中执行如实施例1或2所述的边链路信息传输方法。
本发明实施例提供一种存储有计算机可读程序的存储介质，其中所述计算机可读程序使得计算机在基站中执行如实施例1或2所述的边链路信息传输方法。
本发明以上的装置和方法可以由硬件实现，也可以由硬件结合软件实现。本发明涉及这样的计算机可读程序，当该程序被逻辑部件所执行时，能够使该逻辑部件实现上文所述的装置或构成部件，或使该逻辑部件实现上文所述的各种方法或步骤。本发明还涉及用于存储以上程序的存储介质，如硬盘、磁盘、光盘、DVD、flash存储器等。
针对附图中描述的功能方框中的一个或多个和/或功能方框的一个或多个组合，可以实现为用于执行本申请所描述功能的通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现场可编程门阵列(FPGA)或者其它可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件或者其任意适当组合。针对附图描述的功能方框中的一个或多个和/或功能方框的一个或多个组合，还可以实现为计算设备的组合，例如，DSP和微处理器的组合、多个微处理器、与DSP通信结合的一个或多个微处理器或者任何其它这种配置。
以上结合具体的实施方式对本发明进行了描述，但本领域技术人员应该清楚，这些描述都是示例性的，并不是对本发明保护范围的限制。本领域技术人员可以根据本发明的精神和原理对本发明做出各种变型和修改，这些变型和修改也在本发明的范围内。

Claims (16)

  1. 一种边链路信息传输装置，配置于远程用户设备中，所述边链路信息传输装置包括：
    中继选择单元，从一个或多个用户设备中选择中继用户设备；
    第一请求发送单元，向基站发送用于请求分配边链路资源的第一资源请求信息；其中所述第一资源请求信息指示所述远程用户设备与所述中继用户设备已配对。
  2. 根据权利要求1所述的边链路信息传输装置，其中，所述第一资源请求信息包含发端用户设备标识和配对的目的端用户设备标识。
  3. 根据权利要求2所述的边链路信息传输装置，其中，在所述第一资源请求信息中，所述发端用户设备标识和所述目的端用户设备标识表现为所述远程用户设备的边链路用户设备标识以及所述中继用户设备的中继用户设备标识。
  4. 根据权利要求1所述的边链路信息传输装置，其中，所述边链路信息传输装置还包括：
    连接请求发送单元，向所述中继用户设备发送用于建立边链路的连接请求信息，所述连接请求信息至少包含所述远程用户设备的小区无线网络临时标识即C-RNTI。
  5. 一种边链路信息传输装置，配置于中继用户设备中，所述边链路信息传输装置包括：
    第二请求发送单元，向基站发送用于请求分配边链路资源的第二资源请求信息；其中所述第二资源请求信息指示所述中继用户设备与一个或多个远程用户设备已配对。
  6. 根据权利要求5所述的边链路信息传输装置，其中，所述第二资源请求信息包含一个或多个所述远程用户设备的小区无线网络临时标识即C-RNTI。
  7. 根据权利要求6所述的边链路信息传输装置，其中，所述边链路信息传输装置还包括：
    连接请求接收单元，接收所述远程用户设备发送的用于建立边链路的连接请求信息，其中所述连接请求信息包含所述远程用户设备的C-RNTI。
  8. 根据权利要求5所述的边链路信息传输装置，其中，所述第二资源请求信息包含发端用户设备标识和配对的目的端用户设备标识。
  9. 根据权利要求8所述的边链路信息传输装置，其中，在所述第二资源请求信息中，所述发端用户设备标识和所述目的端用户设备标识表现为所述中继用户设备的中继用户设备标识以及一个或多个所述远程用户设备的边链路用户设备标识。
  10. 一种通信系统，所述通信系统包括：远程用户设备、中继用户设备以及基站；
    其中，所述远程用户设备从一个或多个用户设备中选择所述中继用户设备，以及向所述基站发送用于请求分配边链路资源的第一资源请求信息，其中所述第一资源请求信息指示所述远程用户设备与所述中继用户设备已配对；
    或者，所述中继用户设备向所述基站发送用于请求分配边链路资源的第二资源请求信息，其中所述第二资源请求信息指示所述中继用户设备与一个或多个所述远程用户设备已配对。
  11. 根据权利要求10所述的通信系统，其中，所述第一资源请求信息包含发端用户设备标识和配对的目的端用户设备标识。
  12. 根据权利要求11所述的通信系统，其中，在所述第一资源请求信息中，所述发端用户设备标识和所述目的端用户设备标识表现为所述远程用户设备的边链路用户设备标识以及所述中继用户设备的中继用户设备标识。
  13. 根据权利要求10所述的通信系统，其中，所述第二资源请求信息包含一个或多个所述远程用户设备的C-RNTI。
  14. 根据权利要求11所述的通信系统，其中，所述中继用户设备还接收所述远程用户设备发送的用于建立边链路的连接请求信息，其中所述连接请求信息包含所述远程用户设备的C-RNTI。
  15. 根据权利要求9所述的通信系统，其中，所述第二资源请求信息包含发端用户设备标识和配对的目的端用户设备标识。
  16. 根据权利要求15所述的通信系统，其中，在所述第二资源请求信息中，所述发端用户设备标识和所述目的端用户设备标识表现为所述中继用户设备的中继用户设备标识以及一个或多个所述远程用户设备的边链路用户设备标识。
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