发明名称 System and method for controlling a wireless packet switched voice call
摘要 A wireless network and serviced mobile station manages VOIP telephony calls by incorporating control information into VOIP datagrams. The control information includes an indication of the data rate of the VOIP payload of the VOIP datagram, the quality of the VOIP payload, requested data rates for subsequent VOIP datagrams, and whether the VOIP payload contains a "silent" VOIP payload. To avoid conflicting with particular datagram requirements, the control information is inserted into the VOIP datagram between the VOIP datagram and the VOIP payload. A base station servicing the wireless link may override the requested data rate and/or the commanded data rate in order to manage its available wireless bandwidth among a plurality of mobile stations. The frame quality indicator may be set by the servicing physical/mac/link layer(s) of the base station or mobile station to indicate that the VOIP payload was not correctly received.
申请公布号 US6839356(B2) 申请公布日期 2005.01.04
申请号 US20010789435 申请日期 2001.02.20
申请人 NORTEL NETWORKS LIMITED 发明人 BARANY PETER;BONTU CHANDRA SEKHAR;BLENN MARVIN
分类号 H04L12/66;H04L29/06;H04M3/00;H04M7/00;H04W28/22;(IPC1-7):H04L12/56 主分类号 H04L12/66
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