×

Telecommunications system, base station thereof and telecommunications method

  • US 7,805,167 B1
  • Filed: 03/15/2000
  • Issued: 09/28/2010
  • Est. Priority Date: 03/16/1999
  • Status: Expired due to Fees
First Claim
Patent Images

1. A method of broadcasting information to mobile stations within a wireless telecommunications system, wherein said system includes a radio base station having an adaptive array antenna having a plurality of antenna elements, said method comprising the steps of:

  • determining the geographic position of a plurality of mobile stations subscribed to receive certain broadcast information;

    generating a multicast data transmission signal including said broadcast information; and

    feeding said multicast data transmission signal to each of said plurality of antenna elements of said adaptive array antenna, wherein the amplitude and phase of said signal delivered to each of said plurality of antenna elements is adjusted as a function of said geographic position of said plurality of mobile stations, whereby a signal beam is formed having a beam width sufficient to cover only the area substantially bounded by the geographic locations of said plurality of mobile stations.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×