Method for realizing device-to-device communication relay selection, network control node and user equipment

Abstract

Provided are a method for realizing device-to-device communication relay selection, a network control node and a user equipment. The method includes: a network control node receiving relay-related information sent by user equipment and determining a relay node; and the network control node sending device-to-device communication relay configuration information to the determined relay node. In the technical solution, by sending relay-related information in a network to perform selection or configuration of a relay node, a corresponding solution is provided for a scenario for which relay selection is not provided, and thereby the selection of the relay node is realized.

What is claimed is: 
     
         1 . A method for realizing device-to-device communication relay selection, comprising:
 sending, by a user equipment, relay-related information used for determining a relay node to a network control node; and   when the user equipment is determined as the relay node, receiving, by the user equipment, device-to-device communication relay configuration information sent by the network control node.   
     
     
         2 . The method according to  claim 1 , wherein the relay-related information comprises:
 an indication that the user equipment supports device-to-device communication relay.   
     
     
         3 . The method according to  claim 1 , further comprising:
 before the user equipment sends the relay-related information to the network control node, receiving, by the user equipment, a relay reception resource pool sent or preconfigured by the network control node through broadcasting;   judging, by the user equipment, whether a relay threshold is satisfied according to the measurement result of measurement performed to the serving cell, and sending the relay-related information to the network control node only when the relay threshold is satisfied, wherein the relay threshold information comprises: a link quality measurement minimum threshold of the serving cell.   
     
     
         4 . The method according to  claim 1 , further comprising:
 before the user equipment sends the relay-related information to the network control node, receiving, by the user equipment, relay threshold information sent or preconfigured by the network control node through broadcasting;   judging, by the user equipment, whether a relay threshold is satisfied according to the measurement result of measurement performed to the serving cell, and sending the relay-related information to the network control node only when the relay threshold is satisfied, wherein the relay threshold information comprises: a link quality measurement minimum threshold of the serving cell.   
     
     
         5 . The method according to  claim 1 , further comprising:
 before the user equipment sends the relay-related information to the network control node, receiving, by the user equipment, a relay reception resource pool and relay threshold information sent or preconfigured by the network control node through broadcasting;   judging, by the user equipment, whether a relay threshold is satisfied according to the measurement result of measurement performed to the serving cell, and sending the relay-related information to the network control node only when the relay threshold is satisfied,   wherein the relay threshold information comprises: a link quality measurement minimum threshold of the serving cell.   
     
     
         6 . The method according to  claim 1 , wherein the device-to-device communication relay configuration information comprises:
 relay node device-to-device communication transmission resource configuration.   
     
     
         7 . The method according to  claim 1 , wherein the device-to-device communication relay configuration information comprises:
 relay node device-to-device communication reception resource configuration.   
     
     
         8 . The method according to  claim 1 , wherein the device-to-device communication relay configuration information comprises:
 relay node device-to-device communication transmission and reception resource configuration.   
     
     
         9 . The method according to  claim 1 , wherein the network control node comprises:
 a base station and/or a network element having a ProSe function and/or other network elements executing a device-to-device communication relay selection function.   
     
     
         10 . The method according to  claim 1 , wherein the method previously further comprises:
 receiving, by the user equipment, request information, sent by the network control node, of the relay-related information or report configuration information of the relay-related information, and the user equipment sending the relay-related information according to the request information of the relay-related information or the report configuration information of the relay-related information.   
     
     
         11 . The method according to  claim 1 , wherein the method further comprises:
 after the user equipment determined as the relay node receives the device-to-device communication relay configuration information sent by the network control node, executing, by the user equipment, activation and/or setup, release and/or deactivation or modification of a relay function of the determined relay node according to the device-to-device communication relay configuration information.   
     
     
         12 . A user equipment, comprising a processor and a storage device, wherein the storage device stores processor-executable programs comprising:
 a first sending unit configured to send relay-related information used for determining a relay node to a network control node; and   a first receiving unit configured to, when the user equipment is determined as a relay node, receive device-to-device communication relay configuration information sent by the network control node.   
     
     
         13 . The user equipment according to  claim 12 , wherein the relay-related information comprises:
 an indication that the user equipment supports device-to-device communication relay.   
     
     
         14 . The user equipment according to  claim 12 , wherein the user equipment further comprises:
 a resource pool monitoring unit configured to receive a relay reception resource pool sent or preconfigured by the network control node through broadcasting.   
     
     
         15 . The user equipment according to  claim 12 , wherein the user equipment further comprises:
 a resource pool monitoring unit configured to receive relay threshold sent or preconfigured by the network control node through broadcasting.   
     
     
         16 . The user equipment according to  claim 12 , wherein the user equipment further comprises:
 a resource pool monitoring unit configured to receive a relay reception resource pool and relay threshold sent or preconfigured by the network control node through broadcasting.   
     
     
         17 . The user equipment according to  claim 12 , wherein the device-to-device communication relay configuration information comprises:
 relay node device-to-device communication transmission resource configuration.   
     
     
         18 . The user equipment according to  claim 12 , wherein the device-to-device communication relay configuration information comprises:
 relay node device-to-device communication reception resource configuration.   
     
     
         19 . The user equipment according to  claim 12 , wherein the device-to-device communication relay configuration information comprises:
 relay node device-to-device communication transmission and reception resource configuration.