Title:
A METHOD OF CHANNEL ESTIMATE IN TDD-CDMA SYSTEM
Document Type and Number:
WIPO Patent Application WO/2006/102792
Kind Code:
A1
Abstract:
A method of channel estimate in TDD-CDMA system, including the following steps: finishing the simultaneity estimate of the channel impulse response in one time slot of each user using Steiner estimator, getting the originality time domain disperse channel impulse response of all the users hn,k=[hn,k,1,hn,k,2, hn,k,W], k=1,2,...,K; calculating every tap adjudgement measurement of the time slot n of each user tn,k,i=atn-1,k,i+(l-a) hn,k,I&Verbar 2, k=1,2,...,K; all the taps getting tn,k=[tn,k,1,tn,k,2, tn,k,w]; carrying out the variable length multi time slots sliding average to the each tap of the time slot n of each user, getting the average value Fomula (I), i=1,2,...,W, all the taps get hn,k=[hn,k,1,hn,k,2,...,h n,k,W], k =1,2,...,K; filtering the noise taps to the time slot n of each user, getting h'n,k,i; outputting the channel estimate value h'n,k of a user in time slot n; repeating the above steps until gets the channel estimate values of all the users.
Inventors:
GUO JUNFENG (CN)
ZENG ZHAOHUA (CN)
LIU HU (CN)
ZENG ZHAOHUA (CN)
LIU HU (CN)
Application Number:
PCT/CN2005/000404
Publication Date:
October 05, 2006
Filing Date:
March 29, 2005
Export Citation:
Assignee:
ZTE CORP (CN)
GUO JUNFENG (CN)
ZENG ZHAOHUA (CN)
LIU HU (CN)
GUO JUNFENG (CN)
ZENG ZHAOHUA (CN)
LIU HU (CN)
International Classes:
H04B1/707
Domestic Patent References:
| WO2000064113A1 | 2000-10-26 | |||
| WO2003044975A1 | 2003-05-30 |
Foreign References:
| US20040203812A1 | 2004-10-14 |
Attorney, Agent or Firm:
LEADER PATENT & TRADEMARK FIRM (TOPBOX Building No.69 Beichen West Roa, Chaoyang District Beijing 9, CN)
Download PDF: