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Multi-beam cellular communication system

  • US 7,826,471 B2
  • Filed: 03/11/2003
  • Issued: 11/02/2010
  • Est. Priority Date: 03/11/2003
  • Status: Active Grant
First Claim
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1. A method for use in a cellular communication system, the cellular communication system comprising at least one base station serving a plurality of sectors, the at least one base station comprising an antenna arrangement per base station sector for generating an array of narrow beams covering the base station sector,the method comprising the steps of, at the antenna arrangements:

  • simultaneously transmitting timeslots over each narrow beam generated by the antenna arrangements;

    generating multiple codes in each time slot, the codes being divided into a first sub-set and a second sub-set, the first sub-set and second sub-set being exclusive of one another;

    transmitting common overhead channels including a pilot channel to end user equipments on each beam in a sector using the same first sub-set of codes; and

    transmitting different data traffic to end user equipments on different beams in a sector by re-using the same second sub-set of codes in each beam.

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