Connection establishment method and user equipment

Abstract

The present invention provides a connection establishment method and a user equipment. The connection establishment method includes: acquiring, by a second user equipment supporting a device to device (D2D) function, first user equipment information of a first user equipment supporting the D2D function; and initiating, by the second user equipment, a connection establishment process with a network-side device after the second user equipment determines that a connection with the first user equipment is established according to the first user equipment information, and sending the first user equipment information to the network-side device in the connection establishment process, so that a connection is established between the network-side device and the first user equipment. The present invention can realize establishment of a DPS bearer between the user equipments supporting the D2D function, realize communication between the user equipments supporting the D2D function and further realize resource controllability of a network.

What is claimed is: 
     
         1 . A connection establishment method, comprising:
 acquiring, by a first user equipment (UE) supporting a device to device (D2D) function, a resource that is used to send information of the first UE, wherein the information of the first UE comprises at least one of an identifier, service information, a service code, and application layer service information of the first UE; and   sending, by the first UE, the information of the first UE on the resource to a second UE.   
     
     
         2 . The method of  claim 1 , wherein before acquiring the resource, the method further comprises:
 sending, by the first UE, an attach request message to a base station, wherein the attach request message comprises a D2D connection type parameter, and the attach request message is used for indicating the base station to connect with the first UE;   wherein the resource is allocated by the base station.   
     
     
         3 . The method of  claim 1 , further comprising:
 sending, by the first UE, an attach request message to a base station;   wherein the attach request message is used for indicating the base station to send a initial UE message to a mobility management entity according to the attach request message,   wherein the initial UE message is used for indicating the mobility management entity to send an initial context setup request message to the base station according to the initial UE message, and   wherein the initial context setup request message comprises indication information, the indication information configured for indicating the base station that the first UE supports the D2D function.   
     
     
         4 . The method of  claim 1 , wherein a protocol stack of an air interface between the first UE and the second UE comprises a user plane protocol stack, wherein the user plane protocol stack comprises at least one of internet protocol, media access control-d information, and physical layer information. 
     
     
         5 . A user equipment (UE) supporting a device to device (D2D) function, the UE comprising:
 a receiver, configured to acquire a resource used to send information of the UE, wherein the information of the UE comprises at least one of an identifier, service information, a service code, and application layer service information of the UE; and   a transmitter, configured to send the information of the UE on the resource to another UE, wherein the another UE supports the D2D function.   
     
     
         6 . The UE of  claim 5 ,
 wherein the transmitter is further configured to send an attach request message to a base station before the receiver acquires the resource, wherein the attach request message comprises a D2D connection type parameter, and the attach request message is used for indicating the base station to connect with the UE; and   wherein the resource is allocated by the base station.   
     
     
         7 . The UE of  claim 5 ,
 wherein the transmitter is further configured to send an attach request message to a base station, wherein the attach request message is used for indicating the base station to send a initial UE message to a mobility management entity according to the attach request message;   wherein the initial UE message is used for indicating the mobility management entity to send an initial context setup request message to the base station according to the initial UE message; and   wherein the initial context setup request message comprises indication information, the indication information configured for indicating the base station that the UE supports the D2D function.   
     
     
         8 . The UE of  claim 5 , wherein a protocol stack of an air interface between the UE and the another UE comprises a user plane protocol stack, wherein the user plane protocol stack comprises at least one of internet protocol, media access control-d information, and physical layer information.