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    • 2. 发明授权
    • System and method for improving robust header compression (ROHC) efficiency
    • 提高鲁棒头压缩(ROHC)效率的系统和方法
    • US07701981B2
    • 2010-04-20
    • US11413334
    • 2006-04-27
    • Rohit KapoorMagnus D. Kretz
    • Rohit KapoorMagnus D. Kretz
    • H04J3/06
    • H04L69/04H04L69/22
    • The invention relates to interpreting the change in the increment of the RTP TS field as occurring either due to silence suppression for a voice flow or a change in sampling/frame rate of a video flow. By interpreting this change correctly, the value of the TS_STRIDE field in robust header compression may be correctly calculated leading to efficient header compression performance. In one aspect, there is disclosed a method of improving ROHC between an Access Network (AN) having a compressor and an Access Terminal (AT) having a decompressor, comprising providing flow information to the compressor relating to a change in the increment of an RTP TS field of a header; determining the change in the increment of an RTP TS field as occurring either due to silence suppression or due to a change in a sampling/frame rate; and taking appropriate action for TS_STRIDE.
    • 本发明涉及解释由于语音流的静音抑制或视频流的采样/帧速率的改变而导致的RTP TS字段的增量变化。 通过正确解释此更改,可以正确计算鲁棒报头压缩中TS_STRIDE字段的值,从而实现高效的报头压缩性能。 一方面,公开了一种改进具有压缩器的接入网络(AN)和具有解压缩器的接入终端(AT)之间的ROHC的方法,包括向RTP提供与RTP的增量变化有关的流量信息 标题的TS字段; 确定由于静音抑制或由于采样/帧速率的改变而发生的RTPTS字段的增量的变化; 并对TS_STRIDE采取适当的措施。