Apparatus and a method for telecommunication system,申请号US19970911399-传众专利搜索

Apparatus and a method for telecommunication system

申请公布号：US5946345(A)

申请号：US19970911399

申请日期：1997.08.14

申请公布日期：1999.08.31

申请人：

TELEFONKTIEBOLAGET LM ERICSSON

发明人：KARLSSON, JONAS;TEDER, PAUL;EWERBRING, LARS-MAGNUS

分类号：H04B1/707;(IPC1-7):H04B1/69

主分类号：H04B1/707

摘要：A receiver device (703) downspreads signals from a band spreading signal, which generates downspread symbol sequences (803). A vector generator (704) generate symbol vectors (805) which include a symbol from each downspread symbol sequence (803). An auxiliary receiver (705) detects symbol vectors (805) in a first window (809) with the length of one symbol time. The auxiliary receiver (705) generates provisional estimates of the symbol vectors (805) with the help of a device with a first window algorithm (811). A delaying module (706) delays the symbol vectors (805) from the vector generator (704) by one symbol time before they reach a main receiver (707). The main receiver (707) detects in a second window (806) the symbol vectors (805) with the length of one symbol time. The main receiver (707) uses a device with a second window algorithm (808) in order to estimate the received symbol vectors (805) with reference taken to the previously estimated symbol vectors in the main receiver (705) and the provisional estimates of the symbol vectors (805) from the auxiliary receiver (705). A component generator (710) divides up the estimated symbol vectors (807) from the main receiver into separate components (815).