Patent ID: 8699365
Filing Date: 2014-04-15
Classification: H04L,H04W

Abstract:
1. A communication device comprising: a header compressor which measures a time from a start of communications with a communication partner and changes a compression ratio of a header of a packet to a compression ratio lower than a present compression ratio each time that a time represented by a timer value elapses; and a controller which controls said timer value based upon information relating to a plurality of channel qualities comprising CQI, HARQ, ARQ, and a buffer quantity regarding the communication device and said communication partner wherein said controller determines whether or not each channel quality is good by comparing each channel quality with a corresponding threshold value, wherein if said controller judges that no more than one of the channel qualities is not good, then said controller makes said timer value longer than a present value, and wherein if said controller judges that more than one of the channel qualities are not good, then said controller makes said timer value shorter than the present value.