Method and apparatus to support P2P communication

Abstract

A P2P communication method to be executed in a UE, comprising: sending a P2P communication service registration request message to a communication network system; receiving a P2P communication service registration confirmation message from the communication network system, which at least including a P2P communication identification code for identifying the UE in offline P2P communication; storing the P2P communication identification code of the UE. The P2P communication method to be executed in the communication network system, comprising: receiving the P2P communication service registration request message from the UE; generating a P2P communication identification code for the UE, according to the request message; sending a P2P communication service registration confirmation message to the UE.

Description

technical field [0001] The present invention relates to a wireless communication network, in particular to a method and device for peer-to-peer (P2P: Peer to Peer) communication in the wireless communication network. Background technique [0002] In a traditional cellular mobile communication system, a user terminal must pass through a base station to communicate with another user terminal. Figure 1 shows this traditional communication mode in a TD-SCDMA (Time Division Synchronous Code Division Multiple Access) system, where user terminals UE1 and UE2 pass through a common mobile network composed of a base transceiver station (Node B) and a radio network controller (RNC). Communication system Terrestrial Radio Access Network (UTRAN) exchanges information, and this communication mode is also called uplink-base station-downlink mode. But in some cases, when two users in the same cell are very close to each other, it should be a more reasonable method for them to communicate d...

AI Technical Summary

Problems solved by technology

[0006] However, in this way of using IMSI, TMSI or P-TMSI for P2P communication, it is difficult for the called party UE2 to identify the communication mode that the calling party expects to adopt, that is, only with the paging address used by the calling party UE1, UE2 cannot Determine whether to conduct P2P communication or traditional communication

[0007] In addition, if UE1 and UE2 happen to be in an area outside the coverage of the communication network, obviously due to the lack of support of the communication network system, UE1 and UE2 will not be able to obtain each other's IMSI, TMSI or P-TMSI, and P2P cannot be performed between UE1 and UE2 communication

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