Title:
ESTIMATION METHOD FOR NOISE SPACE CORRELATED CHARACTERISTICS IN TIME SLOT CDMA SYSTEM
Document Type and Number:
WIPO Patent Application WO/2004/062152
Kind Code:
A1
Abstract:
A method for estimating the noise’s space correlated characteristics of a time slot CDMA system includes such steps as estimating the channel of received signals for each antenna of the antenna array to obtain its original result, in which contains the values of P taps, P is the period of basic code for channel estimation; separating the signal response component and the noise response component from the original channel estimation result to get the noise response matrix of antenna array, and making correlation operation with the noise response matrix to obtain the noise space correlated matrix. By using the characteristics of CDMA system channel estimation, this invention provides an estimation method of noise space correlated characteristics in time slot CDMA system. This method is simple and effective, and it has good value stability, thereby it provides good estimation performance in practical S/N range of the system.
Inventors:
WANG YINGMIN (CN)
Application Number:
PCT/CN2004/000023
Publication Date:
July 22, 2004
Filing Date:
January 07, 2004
Export Citation:
Assignee:
DA TANG MOBILE COMM EQUIPMENT (CN)
WANG YINGMIN (CN)
WANG YINGMIN (CN)
International Classes:
H04B1/707; H04B1/712; H04B7/08; H04L1/06; (IPC1-7): H04J13/02; H04B1/10; H04B15/00; H04Q7/20
Domestic Patent References:
| WO1997040589A1 | 1997-10-30 | |||
| WO2002009297A2 | 2002-01-31 |
Foreign References:
| CN1165458A | 1997-11-19 | |||
| CN1350376A | 2002-05-22 | |||
| EP1300999A1 | 2003-04-09 | |||
| US6118832A | 2000-09-12 |
Other References:
See also references of EP 1585245A4
P. JUNG; J. BLANZ: "Joint Detection with Coherent Receiver Antenna Diversity in CDMA Mobile Radio Systems", IEEE TRANS. VEH. TECH, vol. 44, February 1995 (1995-02-01), pages 76 - 88
P. JUNG; J. BLANZ: "Joint Detection with Coherent Receiver Antenna Diversity in CDMA Mobile Radio Systems", IEEE TRANS. VEH. TECH, vol. 44, February 1995 (1995-02-01), pages 76 - 88
Attorney, Agent or Firm:
DEQI INTELLECTUAL PROPERTY LAW CORPORATION (N°.1 Zhichun Road Haidian District, Beijing 3, CN)
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