Channel allocation in broadband orthogonal frequency-division multiple-access/space-division multiple-access networks

CAFC
  • US 6,870,808 B1
  • Filed: 10/18/2000
  • Issued: 03/22/2005
  • Est. Priority Date: 10/18/2000
  • Status: Active Grant
First Claim
Patent Images

1. A network comprising:

  • a base station; and

    a plurality of subscriber units to communicate with the base station using an orthogonal frequency-division multiple-access (OFDMA) protocol;

    the base station including a memory to store broadband spatial signature vectors associated with each subscriber, the vectors being a function of frequency; and

    traffic channel allocation logic to allocate OFDMA channels using the broadband spatial signature vectors of the subscribers.

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