公开(公告)号：US20150023227A1

公开(公告)日：2015-01-22

申请号：US13946464

申请日：2013-07-19

Applicant: MOTOROLA SOLUTIONS, INC

Inventor： HUN WENG KHOO ,  THOMAS B. BOHN ,  YUEH CHING CHUNG ,  DAVID G. WIATROWSKI

IPC: H04W72/04 ,  H04L5/14

CPC classification number: H04W72/0446 ,  H04B7/2656 ,  H04L5/14 ,  H04W84/08

Abstract: A method for enabling full duplex direct mode calls between radios in an N:1 slotting ratio TDMA radio system includes detecting a request for a full duplex direct mode call at a first radio, transmitting in a particular slot of a first recurring time slot of N recurring time slots on a first single frequency one of a call request and a call header identifying the call as a full duplex call. Subsequently transmitting, by the first radio, during a plurality of subsequent first recurring time slots, outbound voice and/or data transmissions. And receiving, during a plurality of second recurring time slots of the N recurring time slots, each second recurring timeslot positioned immediately adjacent a respective first recurring time slot in an interleaved manner, inbound voice and/or data transmissions from the second radio and playing back the inbound voice and/or data transmission at the first radio.

Abstract translation: 一种用于在N：1时隙率TDMA无线电系统中的无线电之间实现全双工直接模式呼叫的方法包括在第一无线电中检测对全双工直接模式呼叫的请求，在N个第一重复时隙的特定时隙中进行发送 呼叫请求中的一个频率上的经常性时隙和将该呼叫标识为全双工呼叫的呼叫头。 随后由第一无线电装置在多个随后的第一循环时隙中发送出站语音和/或数据传输。 并且在N次循环时隙的多个第二循环时隙期间，以交织的方式接收与相应的第一循环时隙紧邻的每个第二循环时隙，从第二无线电接收入站语音和/或数据传输 第一个收音机的入站语音和/或数据传输。