Motorola Solutions, Inc.

Tan V Dinh

Charles R Ruelke

Branko L Avanic

Armando J Gonzalez

Richard S Young

Joseph J Medvid, Iii

Lorenzo J Cruger

Mahes M Ekanayake

Shakeeb Z Khan

Ellis Arthur Pinder

Joseph P Heck

Wayne M Phang

Dang N Vu

Joseph J Medvid

Iii Medvid Joseph J

A method for transmitting a communication generated by an originating device to a target device using a repeating device is provided. In the method the communication is transmitted from the originating device and received at the repeating device. A repeater request sequence is transmitted from the originating device and retransmitted from the first repeating device to the target device before the repeater request sequence is received at the first repeating device.

Fast access asynchronous repeater wakeup protocol

Methods of enabling late entry into an on-going spread spectrum call are described. A late join frame replaces, and has the same size as, a traffic frame. A late join slot in the late join frame contains sufficient information in preamble and sync subframes to permit a target to join the call. The traffic slots in the late join frame replicate data such that call quality of the call is substantially unaffected if one of the remaining traffic frames is not received. The preamble and sync subframes frequencies may be the same as, or different from, preamble and sync frames frequencies during a call establishment phase of the call. If different, the preamble and sync subframes frequencies are selected from one or more frequencies. Use of the preamble and sync subframes frequencies is compensated for when selecting the traffic slot frequencies to obtain uniform utilization of the spectrum.

Method to facilitate late joining of a call

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Davie, FL, United States of America

Tan V Dinh