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    • 1. 发明授权
    • Method and system for wireless communication incorporating distinct system identifier bytes to preserve multi-frame synchronizaton for systems with limited control channel bandwidth
    • 用于包含不同系统标识符字节的无线通信的方法和系统,以保留具有有限控制信道带宽的系统的多帧同步
    • US06456614B1
    • 2002-09-24
    • US09443933
    • 1999-11-19
    • Sheng GuanPaulus SastrodjojoJuergen KockmannJames S. UmstetterElie JreijOlaf Dicker
    • Sheng GuanPaulus SastrodjojoJuergen KockmannJames S. UmstetterElie JreijOlaf Dicker
    • H04J306
    • H04W56/0085H04B7/2681H04W92/10
    • A method and system are provided for synchronizing wireless communication devices. The method and system involve providing a first unit and a second unit for communication over a wireless communication link. Further, an identical identifier is assigned to the first and second units. Also, a data message is constructed having control data. The data message includes a plurality of data bytes and a portion of the control data corresponds to the identifier. The data message is split into a plurality of message portions and the message portions are transmitted from the first unit to the second unit. The message portions are received at the second unit. Control data from the message portions is assembled to form a control message at the second unit. The identifier portion of the control message is compared with the identifier assigned to the second unit. When the identifier portion of the control message matches the identifier assigned to the second unit, the second unit enters an in-synchronization state. When the identifier portion of the control message is different from the identifier assigned to the second unit, the second unit enters an out-synchronization state. At least one prior control message is searched for the identifier assigned to the second unit when the second unit is in the out-synchronization state. A matching identifier is synchronized with when the matching identifier is found in the prior control messages. When the prior control messages are free of the identifier, the second unit resynchronizes with the first unit.
    • 提供了一种用于同步无线通信设备的方法和系统。 该方法和系统涉及提供第一单元和第二单元,用于通过无线通信链路进行通信。 此外,相同的标识符被分配给第一和第二单元。 此外,构造具有控制数据的数据消息。 数据消息包括多个数据字节,并且一部分控制数据对应于标识符。 数据消息被分成多个消息部分,并且消息部分从第一单元发送到第二单元。 消息部分在第二单元处被接收。 来自消息部分的控制数据被组合以在第二单元处形成控制消息。 将控制消息的标识符部分与分配给第二单元的标识符进行比较。 当控制消息的标识符部分与分配给第二单元的标识符匹配时,第二单元进入同步状态。 当控制消息的标识符部分与分配给第二单元的标识符不同时,第二单元进入失步状态。 当第二单元处于不同步状态时,搜索至少一个先前的控制消息来分配给第二单元的标识符。 匹配标识符与当前控制消息中找到匹配标识符时同步。 当先前控制消息没有标识符时,第二单元与第一单元重新同步。