Patent ID: 7656844
Filing Date: 2010-02-02
Classification: H04B,H04J,H04L

Abstract:
1. A midamble pattern assigning method for assigning a plurality of midamble patterns to a plurality of CDMA radio transmission apparatuses, the method comprising: while a first CDMA radio transmission apparatus and a second CDMA radio transmission apparatus are engaged in communication, (i) at a first time unit, assigning a first midamble pattern to the first CDMA radio transmission apparatus and a second midamble pattern, which is different from the first midamble pattern, to the second CDMA radio transmission apparatus, and (ii) at a second time unit subsequent to the first time unit, assigning the first midamble pattern to the second CDMA radio transmission apparatus and the second midamble pattern to the first CDMA radio transmission apparatus, wherein: step (i) and step (ii) are periodically repeated at a regular interval.