Title:
DIGITAL COMMUNICATION SYSTEM
Document Type and Number:
Japanese Patent JP3441998
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To reduce the influence of multiple propagation and of interference from another terminal by referring to an existing and pseudo-existing sign and adjusting the tap weighting of a tapped delay line space and/or time processor by means by continuous repetition.
SOLUTION: A signal where rotation is returned to the original one from each reception device 4 is transmitted to each analog-digital converter 3 and a sample quantized there is converted into a digital signal. The signal which is digitized and where the given rotation is returned to the original one is stored in a storage device 5 and continuously read-out to each delay line 6 with the tap. The signal is weighted by an individual weight 8 in each tap and the weighted signals are summed-up by a totalizer 12. The total sums from each space/time processor are summed-up by a totalizer 14. The output of the totalizer 14 enables the estimation value of an automatic correlative relation matrix in an input to a system to be the more correct one and the reference of an adaptability is calculated during repetition after that.
Inventors:
Timothy James Spate
Application Number:
JP9562199A
Publication Date:
September 02, 2003
Filing Date:
April 02, 1999
Export Citation:
Assignee:
Lucent Technologies, Inc.
International Classes:
H01Q3/26; H04B7/08; H04B7/26; H04L1/00; H04L1/06; H04L1/20; H04L25/03; (IPC1-7): H01Q3/26; H04B7/08; H04L1/00
Domestic Patent References:
| JP5199143A |
Other References:
【文献】欧州特許出願公開677952(EP,A1)
【文献】英国特許1503083(GB,B)
【文献】米国特許3633107(US,A)
【文献】英国特許1503083(GB,B)
【文献】米国特許3633107(US,A)
Attorney, Agent or Firm:
Masao Okabe (10 outside)