Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
TD-SCDMA SIGNAL DETECTION METHOD AND APPARATUS
Document Type and Number:
WIPO Patent Application WO/2010/020168
Kind Code:
A1
Abstract:
The invention discloses a Time-Division Synchronization Code Division Multiple Access (TD-SCDMA) signal detection method and apparatus, wherein the method includes: implementing the channel estimation of the training sequence signal separated from the received signal, and then obtaining the channel estimation result of time domain; denoising the signal of the two data portions, and obtaining the time domain signal of the two data portions; implementing the signal estimation of the channel estimation result of time domain and the time domain signal of the two data portions with Fast Fourier Transform (FFT) and Inverse Fast Fourier Transform (IFFT), and obtaining the estimated chip signal; descrambling and dispreading the estimated chip signal, and obtaining the detection result of all the transmitted symbols; soft-demodulating the obtained detection result, and then transmitting it to the transmission channel. By the invention it does not need complicated operation of matrix inversion or Cholesky decomposition, and does not need complicated operation of code-activation detection, to detect the timeslot data of TD-SCDMA system, and thus the control and calculation complexity of system implementation is greatly reduced.

Inventors:
XIAO HAIYONG (CN)
Application Number:
PCT/CN2009/073306
Publication Date:
February 25, 2010
Filing Date:
August 17, 2009
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
ZTE CORP (CN)
XIAO HAIYONG (CN)
International Classes:
H04L13/02; H04J3/06
Foreign References:
CN1845483A2006-10-11
CN101237245A2008-08-06
Other References:
GAO, LEI.: "Study on Joint Detection Algorithm Based on Channel Estimation in TD-SCDMA System", CHINESE MASTER'S THESES FULL-TEXT DATABASE, INFORMATION SCIENCE AND TECHNOLOGY, 15 April 2008 (2008-04-15), pages 1136 - 109
Attorney, Agent or Firm:
KANGXIN PARTNERS, P.C. (Tower A Indo Building,A48 Zhichun Road, Haidian District, Beijing 8, CN)
Download PDF: