Direct mode communication system and discovery interactive method thereof

摘要

A direct-mode communication system having a user direct-mode communication apparatus and a serving direct-mode communication apparatus is provided. The user direct-mode communication apparatus connects to an operating server, and authenticates with the operating server to obtain a user authenticated identification. The serving direct-mode communication apparatus connects to the operating server, and authenticates with the operating server to obtain a serving authenticated identification. The user direct-mode communication apparatus broadcasts a discovery signal based on the user authenticated identification. The serving direct-mode communication apparatus receives the discovery signal after the user direct-mode communication apparatus enters a default serving range, and provides interactive information to the user direct-mode communication apparatus according to the discovery signal and based on the serving authenticated identification.

主权项

1. A discovery interactive method for use in a direct-mode communication system, the direct-mode communication system comprising a user direct-mode communication apparatus and a first serving direct-mode communication apparatus both connecting to an operating server, the first serving direct-mode communication apparatus further connecting to a second serving direct-mode communication apparatus, the second serving direct-mode communication apparatus having a second serving authenticated identification obtained through authenticating with the operating server, the discovery interactive method comprising the following steps of:
(a) authenticating, by the user direct-mode communication apparatus, with the operating server to obtain a user authenticated identification; (b) authenticating, by the first serving direct-mode communication apparatus, with the operating server to obtain a first serving authenticated identification; (c) broadcasting, by the user direct-mode communication apparatus, a discovery signal based on the user authenticated identification, wherein the discovery signal comprises a user identifier of the user direct-mode communication apparatus; (d1) determining, by the first serving direct-mode communication apparatus, that the user direct-mode communication apparatus is legal according to the user authenticated identification after the user direct-mode communication apparatus enters a first default serving range of the first serving direct-mode communication apparatus; (d2) receiving, by the first serving direct-mode communication apparatus, the discovery signal after step (d1); and (e) providing, by the first serving direct-mode communication apparatus, interactive information to the user direct-mode communication apparatus according to the discovery signal and based on the first serving authenticated identification; wherein the first serving direct-mode communication apparatus forwards the user identifier comprised in the discovery signal to the second serving direct-mode communication apparatus after step (d2) then the second serving direct-mode communication apparatus successively provides the interactive information to the user direct-mode communication apparatus according to the discovery signal comprising the user identifier and based on the second serving authenticated identification after the user direct-mode communication apparatus enters a second default serving range of the second serving direct-mode communication apparatus.