Patent ID: 9538421
Date: 2017-01-03
CPC Classifications: H04L,H04W

Claim:
1. A method of wireless communication of a first device, comprising: operating a robust header compression (ROHC) compressor in a first state at a ROHC sublayer to compress a first packet to be transmitted to a second device, wherein the first packet includes information for a ROHC decompressor to establish a ROHC context, wherein the information enables the ROHC decompressor to decompress a second packet compressed by the ROHC compressor when operating in a second state; determining, at a sublayer or a layer lower than the ROHC sublayer, whether the first packet has been successfully received at the second device, wherein determining whether the first packet has been successfully received at the second device includes determining whether the first packet has been discarded at a packet data convergence protocol (PDCP) layer at the first device during operation of the ROHC compressor in the first state; and operating the ROHC compressor in the second state to compress the second packet to be transmitted to the second device in response to a determination that the first packet has been successfully received at the second device such that the first packet has not been discarded at the PDCP layer at the first device.