A Novel Matched Filter Structure of Primary Synchronous Channel in W-CDMA System
Weiling Wu · Dianzi xuebao · 2002
The timing relationship between base stations is asynchronous in W-CDMA system.So the three-step cell search algorithm is introduced in 3GPP protocols in order to fast identify the special base station.The first step,Primary Synchronous Channel(P-SCH) acquisition,is very important,but the conventional matched filter occupies much large hardware resources.Because the P-SCH is composed of the Generalised Hierarchical Golay(GHG) Sequence,we propose a novel GHG matched filter according to its structural property,which extremely reduces the hardware complexity.Generally speaking,such GHGMF structure is significant for engineering applications.