Title:
【発明の名称】セルラ基地局用の分割可能送信アンテナアレイ及び関連する方法
Document Type and Number:
Japanese Patent JP2000509579
Kind Code:
A
Abstract:
A time division multiple access base station communicates with a plurality of mobile stations in a cellular communications system using a plurality of time division multiple access (TDMA) time slots. The base station includes an antenna, a modulator, and a radio frequency switch. The antenna includes an array of transmit antenna elements. The modulator generates a first cellular radio signal for transmission during a first time division multiple access (TDMA) time slot, as well as second and third cellular radio signals for simultaneous transmission during a second time division multiple access (TDMA) time slot. In addition, the second and third cellular radio signals are generated on different frequencies. The radio frequency switch couples the first cellular radio signal to a first plurality of the transmit antenna elements during the first time division multiple access (TDMA) time slot, while coupling the second and third cellular radio signals to respective second and third pluralities of the transmit antenna elements during the second time division multiple access (TDMA) time slot.
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Inventors:
Dent, Paul, Wilkinson
Application Number:
JP53820297A
Publication Date:
July 25, 2000
Filing Date:
April 11, 1997
Export Citation:
Assignee:
Ericsson Incorporated
International Classes:
H01Q3/24; H01Q1/24; H01Q9/04; H01Q21/06; H01Q21/08; H01Q21/20; H01Q21/24; H01Q25/04; H04B7/06; H04B7/08; H04B7/10; H04B7/24; H04B7/26; H04W16/00; H04W16/28; H04W16/30; H04W16/24; H04W48/12; H04W52/00; (IPC1-7): H04Q7/22; H01Q3/24; H01Q21/20; H01Q25/04; H04B7/10; H04B7/24; H04B7/26; H04Q7/24; H04Q7/26; H04Q7/30
Attorney, Agent or Firm:
Akira Asamura (3 outside)