发明名称 |
A method to determine timeslot duration in a TDMA-based MAC protocol for VOIP over wireless |
摘要 |
What is described is an approach to assigning timeslots of appropriate duration when using a TDMA based MAC protocol for forwarding VOIP traffic. It is known that a typical user speaks only 35% of the time in a voice session. Existing VOIP systems exploit this fact and reduce the amount of data generated by employing Voice Activity Detection (VAD) algorithms. The packets generated when a user is silent are shorter than the packets generated when a user is speaking. Hence there is a need to assign timeslots of different duration based on user speech activity. When the user is speaking we assign an Active Speech Timeslot (AST). When the user is listening a Silent Speech Timeslot (SST) that is long enough to transmit packets generated by a Comfort Noise Generator is assigned. |
申请公布号 |
AU2008219038(A1) |
申请公布日期 |
2008.08.28 |
申请号 |
AU20080219038 |
申请日期 |
2008.02.21 |
申请人 |
XG TECHNOLOGY, INC.;SHASHIDHAR GANDHAM |
发明人 |
SHASHIDHAR R. GANDHAM |
分类号 |
H04B7/212 |
主分类号 |
H04B7/212 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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