Abstract: The present document provides a method and system for updating a reorder depth in robust header compression. The method comprises: when determining a reorder occurs in data packets, a decompressor estimating the reorder situation, and determining whether a more robust reorder processing policy needs to be used according to the reorder situation; if it needs not to be used, maintaining a reorder depth value at the decompressor side; if it 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; and after receiving the feedback packet, the compressor updating the reorder depth value at the compressor side according to the reorder depth value in the feedback packet.

Abstract: A robustness header compression processing method, compressor and system are disclosed. The method includes: after receiving a CONTEXT_MEMORY option transmitted by a decompressor, a compressor selecting to use Profile0 to perform data compression on packets to be compressed; and after determining that a first threshold is reached by using the Profile0, the compressor performing data compression using a Profile type to which the packets to be compressed belong. In the above robustness compression processing method, compressor and system, after receiving a CONTEXT_MEMORY feedback option, a compressor selects a compression packet format Profile0 and attempts to restore normal compression and decompression after a certain period of time, thus improving efficiency and accuracy of compression and decompression as well as utilization of wireless bandwidth.

Abstract: A robustness header compression processing method, compressor and system are disclosed. The method includes: after receiving a CONTEXT_MEMORY option transmitted by a decompressor, a compressor selecting to use Profile0 to perform data compression on packets to be compressed; and after determining that a first threshold is reached by using the Profile0, the compressor performing data compression using a Profile type to which the packets to be compressed belong. In the above robustness compression processing method, compressor and system, after receiving a CONTEXT_MEMORY feedback option, a compressor selects a compression packet format Profile0 and attempts to restore normal compression and decompression after a certain period of time, thus improving efficiency and accuracy of compression and decompression as well as utilization of wireless bandwidth.

Abstract: The present document provides a method and system for updating a reorder depth in robust header compression. The method comprises: when determining a reorder occurs in data packets, a decompressor estimating the reorder situation, and determining whether a more robust reorder processing policy needs to be used according to the reorder situation; if it needs not to be used, maintaining a reorder depth value at the decompressor side; if it 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; and after receiving the feedback packet, the compressor updating the reorder depth value at the compressor side according to the reorder depth value in the feedback packet.