Patent ID: 9525650
Filing Date: 2016-12-20
CPC Classification: H04L,H04W

Claim Text:
1. A method for updating a reorder depth in robust header compression, comprising: when determining that a reorder occurs in data packets, a decompressor estimating a reorder situation, and determining whether a more robust reorder processing policy needs to be used according to the reorder situation; if the more robust reorder processing policy needs not to be used, maintaining a reorder depth value at the decompressor side; if the more robust reorder processing policy needs to be used, updating the reorder depth value at the decompressor side to a greater value, and transmitting a feedback packet carrying the updated reorder depth value to a compressor, so that the compressor updates a reorder depth value at the compressor side according to the reorder depth value in the feedback packet; wherein, the compressor updating the reorder depth value at the compressor side according to the reorder depth value in the feedback packet comprises: determining whether the reorder depth value at the compressor side is less than the reorder depth value in the feedback packet, if yes, updating the reorder depth value at the compressor side to the reorder depth value in the feedback packet; otherwise, transmitting an Initialization and Refresh (IR) packet to the decompressor to perform reorder depth value synchronization.