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    • 1. 发明申请
    • Push-to-talk reverse channel establishment
    • 一键通反向信道建立
    • US20050250523A1
    • 2005-11-10
    • US10842674
    • 2004-05-10
    • Mark LemkeJerome VogedesRobert Patzer
    • Mark LemkeJerome VogedesRobert Patzer
    • H04W4/10H04W76/02H04W76/06H04W84/08H04B7/00
    • H04L65/4061H04L65/1016H04W4/10H04W76/10H04W76/45H04W84/08
    • A push-to-talk (PTT) radio resource controller (441) establishes a “reverse” channel using a forward channel resource request module (461), a reverse channel resource request module (463), an allocation rules module (470) that is coupled to the forward channel resource request module (461) and the reverse channel resource request module (463), and a channel resource availability module (480) that is coupled to the allocation rules module (470). A method (300) for establishing a reverse channel in a PTT system initiates a forward PTT circuit (313) between an originating device and at least a first called device, initiates a first reverse PTT circuit (319) between the first called device and the originating device before releasing (329) the forward PTT circuit, and then releases (339) the first reverse PTT circuit.
    • 即按即说(PTT)无线电资源控制器(441)使用前向信道资源请求模块(461),反向信道资源请求模块(463),分配规则模块(470),建立“反向”信道 耦合到前向信道资源请求模块(461)和反向信道资源请求模块(463),以及耦合到分配规则模块(470)的信道资源可用性模块(480)。 用于在PTT系统中建立反向信道的方法(300)在始发设备和至少第一被叫设备之间发起正向PTT电路(313),启动第一被叫设备和第一被叫设备之间的第一反向PTT电路(319) 发起装置(329)前转PTT电路,然后释放(339)第一反向PTT电路。