Title:
PILOT VECTOR CORRELATOR FOR SPREAD SPECTRUM COMMUNICATION
Document Type and Number:
Japanese Patent JP3706108
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a pilot vector correlator for a spread spectrum communication system.
SOLUTION: The pilot vector correlator is provided with a local pilot code sequence generating means for generating a local code sequence, in which a pilot spread code sequence is code-phase shifted, a pilot spread code correlator provided with a multiplier for correlating the local code sequence with a spread signal and generating a correlated pilot signal value, by multiplying the spread signal with the local code sequence and an accumulator for accumulating the correlated signal to generate despread multipath pilot signal components, a filter means having a built-in low-pass filter for generating a multipath signal weighting value, corresponding to the carrier signal phase value of reception multipath signal components upon receiving the despread multipath pilot signal components, a complex multiplying means for multiplying the multipath pilot signal components by a weighted value, and a combining means for generating a pilot data value by combining the phase-rotated pilot signal.
Inventors:
Romp, Gerry
Ozultak, Fatih
Silverberg, Abi
Ozultak, Fatih
Silverberg, Abi
Application Number:
JP2003010382A
Publication Date:
October 12, 2005
Filing Date:
June 27, 1996
Export Citation:
Assignee:
Interdigital Technology Corporation
International Classes:
H03K3/84; G06F13/374; H03H17/02; H04B1/707; H04B1/7075; H04B1/708; H04B1/7085; H04B1/709; H04B1/7093; H04B1/711; H04B7/005; H04B7/216; H04B7/26; H04B15/00; H04B17/00; H04J13/00; H04J13/10; H04K1/00; H04L1/00; H04L5/14; H04L7/00; H04L7/033; H04L25/02; H04L27/20; H04L27/233; H04L27/30; H04N1/333; H04W52/04; H04W52/14; H04W52/24; H03H17/06; H04B1/7077; H04B1/7115; H04B1/712; H04J11/00; H04J13/12; H04J13/16; H04L27/00; (IPC1-7): H04B1/707; H04L7/00; H04L7/033
Foreign References:
| WO1995005037A1 |
Other References:
Bernasconi, V.,Receiver architectures for the down-link in a DS-CDMA mobile system,1994 Third Annual International Conference on Universal Personal Communications,IEEE,1994年 9月27日,pp.51-55
Tateesh S. et.al,Channel adapted RAKE receiver (CARAKE) for coherent uplink demodulation,Communications and Vehicular Technology in the Benelux, 1994., IEEE Second Symposium on,1994年11月 3日,pp.155-158
Tateesh S. et.al,Channel adapted RAKE receiver (CARAKE) for coherent uplink demodulation,Communications and Vehicular Technology in the Benelux, 1994., IEEE Second Symposium on,1994年11月 3日,pp.155-158
Attorney, Agent or Firm:
Shin Uchihara