Title:
タイムスロット分割移動通信システムにおける時変チャネルの修正方法
Document Type and Number:
Japanese Patent JP4167655
Kind Code:
B2
Abstract:
A correction method for time varying channels in a time slot division mobile communication system that includes: performing channel estimation and signal detection for a time-slot or burst signal received with a time invariant block processing method; estimating the channel deviation by using the detection result of some symbols that are near the channel estimation code; correcting the channel estimation with the estimated channel deviation; and demodulating the said detection result with the corrected channel estimation. The procedure can be carried out once or for a plurality of times. This correction method is adaptive to a certain degree of varying of the channel response within a time-slot while keeping the basic characteristics of the block processing method, softening the terms of application thereof in a time-slot CDMA system or similar block processing systems and improving the performance of system under the circumstances of larger frequency deviation and shift as well as higher moving speed of a terminal.
Inventors:
Wang Emin
Application Number:
JP2004562469A
Publication Date:
October 15, 2008
Filing Date:
December 26, 2003
Export Citation:
Assignee:
Da Tang Mobile Communications Equipment Co., Ltd.
International Classes:
H04B1/707; H04B1/712
Domestic Patent References:
| JP11127208A | ||||
| JP2001168777A | ||||
| JP2003069530A | ||||
| JP2002033685A | ||||
| JP2001203619A | ||||
| JP2002026775A | ||||
| JP2000358010A | ||||
| JP2000209184A | ||||
| JP2000349695A | ||||
| JP11008566A | ||||
| JP10051424A | ||||
| JP2001069050A |
Foreign References:
| WO2001048959A1 |
Attorney, Agent or Firm:
Atsushi Nakajima
Kato Kazunori
Katsuichi Nishimoto
Kato Kazunori
Katsuichi Nishimoto