Title:
DEVICE AND METHOD FOR GENERATING WEIGHTING OF TRANSMITTER ANTENNA
Document Type and Number:
Japanese Patent JP2000269869
Kind Code:
A
Abstract:
To obtain a communication system that uses an antenna array.
A 2nd communication unit generates an antenna weighting for the transmission path between two communication units 1, 2 and feeds it back to the 1st communication unit that has antenna arrays 4, 5, 6. This method is especially applicable to a multiple carrier system like an OFDM system. Only the weighting to a subcarrier that is identified as to have been received with comparatively poor signal quality is calculated, and the result is fed back to the 1st communication unit so as to minimize a request of additional expenses.
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Inventors:
BOIXADERA ESPAX F
FARMINE YANN
WHINNETT NICHOLAS
FARMINE YANN
WHINNETT NICHOLAS
Application Number:
JP2000055145A
Publication Date:
September 29, 2000
Filing Date:
March 01, 2000
Export Citation:
Assignee:
MOTOROLA INC
International Classes:
H01Q3/26; H04B7/06; H04B7/26; H04J11/00; H04L1/06; H04L27/26; (IPC1-7): H04B7/06; H01Q3/26; H04B7/26; H04J11/00
Attorney, Agent or Firm:
Shinsuke Onuki (2 outside)