CONTROL PROCEDURE FOR SIMULTANEOUS MEDIA COMMUNICATIONS WITHIN A TALK GROUP IN COMMUNICATION NETWORKS FOR PUBLIC SAFETY
摘要
<p>A method and apparatus are provided for a set of procedures that a push-to-talk (PTT) server can use to control multiple simultaneous media streams within a talk group. The present invention provides floor control messages and protocols for identifying, transmitting, and distributing the simultaneous media streams. The invention may be used with any real¬ time protocol (RTP) payload format as long as the encoding allows a receiver of the packets means to distinguish between the transmitting clients. Although the present invention provides server-based control of multiple transmissions, end-point-based transmission control procedures are supported.</p>
申请公布号
WO2008112094(A1)
申请公布日期
2008.09.18
申请号
WO2008US02805
申请日期
2008.03.03
申请人
LUCENT TECHNOLOGIES INC.;CHU, THOMAS, P.;EMANUEL, MICHELLE, T.;SALISBURY, CHARLES
发明人
CHU, THOMAS, P.;EMANUEL, MICHELLE, T.;SALISBURY, CHARLES