会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 10. 发明授权
    • Timeslot duration in TDMA-based MAC for VOIP over wireless
    • 基于无线网络的基于TDMA的MAC的时隙持续时间
    • US07961691B2
    • 2011-06-14
    • US12070815
    • 2008-02-21
    • Shashidhar R. Gandham
    • Shashidhar R. Gandham
    • H04W4/00
    • H04B7/2656H04W72/1284H04W74/02
    • 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.
    • 描述的是在使用基于TDMA的MAC协议来转发VOIP业务时分配适当持续时间的时隙的方法。 众所周知,典型的用户只会在语音会话中说出35%的时间。 现有的VOIP系统利用这一事实,并减少采用语音活动检测(VAD)算法生成的数据量。 用户静音时生成的报文比用户发言时生成的报文短。 因此,需要基于用户语音活动来分配不同持续时间的时隙。 当用户在说话时,我们分配一个活动语音时隙(AST)。 当用户正在收听一个足够长的静音语音时隙(SST),以传送由舒适噪声发生器生成的数据包时。