Transmit channel request messaging for half-duplex voice...

Details Transmit channel request messaging for half-duplex voice... Transmit channel request messaging for half-duplex voice...

H - Electricity

04

W

H04W 4/12 (2009.01) H04W 88/02 (2009.01) H04M 3/56 (2006.01)

Patent

CA 2498997

A method, system, and device are provided for transmit channel request messaging in wireless half-duplex voice communication systems. A new transmit channel request message (TCRM) is provided and sent over a logical control channel from a receiving device capable of walkie-talkie-like functionality, during an active half-duplex session, to a transmitting device capable of walkie-talkie-like functionality, indicating that the transmit channel is requested. In some embodiments, the invention provides for the display of information on the transmitting device user interface (UI) indicating, during an active session, that another user wishes to talk. The TCRM includes an indication that another device has requested the transmit channel and preferably includes an identification of the device which sent the transmit channel request message. In some embodiments, a qualifier flag in the TCRM is used to specify what, if any, extended functionality in respect of the TCRM is to be performed.

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