公开(公告)号：US20160183065A1

公开(公告)日：2016-06-23

申请号：US14910534

申请日：2013-08-13

Applicant: MOTOROLA SOLUTIONS, INC.

Inventor： Quan-Wen DU ,  Guo-Jin WEI

IPC: H04W4/08 ,  H04L25/20

CPC classification number: H04W4/08 ,  H04L25/20 ,  H04W4/10

Abstract: A repeater receives a first group message directed to a talk group. The repeater assigns a first unique message identifier including a generated first sequence number to the first group message. The repeater broadcasts the first group message with the first unique message identifier and the unique talk group address to the talk group. The repeater later receives a second group message directed to the talk group, generates a second sequence number from the generated first sequence number, assigns a second unique message identifier including the second sequence number to the second group message and broadcasts the second group message to the talk group. The first sequence number and the second sequence number may be used by a receiving radio of the talk group to determine if the radio failed to receive one or more group messages or if a received group messages is a duplicate message.

Abstract translation: 中继器接收指向一个通话组的第一组消息。 中继器将包括生成的第一序列号的第一唯一消息标识符分配给第一组消息。 中继器将具有第一唯一消息标识符和唯一通话组地址的第一组消息广播给通话组。 中继器稍后接收到针对通话组的第二组消息，从所生成的第一序列号生成第二序列号，将包括第二序列号的第二唯一消息标识符分配给第二组消息，并将第二组消息广播到 谈话组 第一序列号和第二序列号可以由通话组的接收无线电使用，以确定无线电接收器是否收到一个或多个组消息，或者接收到的组消息是否是重复消息。