Group call service using broadcast radio bearer

Details Group call service using broadcast radio bearer Group call service using broadcast radio bearer

2006-09-14

2008-12-30

Gesesse, Tilahun B (Department: 2618)

Telecommunications

Transmitter and receiver at separate stations

Plural transmitters or receivers

C455S445000, C455S458000

Reexamination Certificate

active

07471961

ABSTRACT:
A system and method for to establish a wireless group call from one of a plurality of communication units to others communication units includes a first step of receiving, from a requesting communication unit a request for a group call with other communication units of the group. A next step includes allocating a common downlink channel for the group call. A next step includes allocating a dedicated uplink channel for the requesting communication unit. A next step includes switching one of the communication units between the common channel mode and a dedicated channel mode depending upon performance criteria.

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3GPP TS 25.346 v6.5.0(Jun. 2004), 3rd Generation Partnership Project; Technical Specification Group Radio Access Network; Introduction of the Multimedia Broadcast Multicast Service (MBMS) in the Radio Access Network (RAN; Stage 2 (Release 6), pp. 1-60.

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