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Rendering multicast service with sufficient reception quality to wireless terminals

  • US 6,895,216 B2
  • Filed: 05/03/2001
  • Issued: 05/17/2005
  • Est. Priority Date: 05/12/2000
  • Status: Active Grant
First Claim
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1. A method of delivering multicast service from an information delivery apparatus to wireless terminals that are experiencing different reception conditions within a service area, comprising the steps of:

  • transmitting, from the information delivery apparatus, a plurality of identical sets of multicast information under respective different transmission conditions that correspond to the different reception conditions of the wireless terminals; and

    receiving, at any given one of the wireless terminals, one of the identical sets of multicast information being transmitted under the respective different transmission conditions, said one of the identical sets being transmitted under one of the different transmission conditions and being received by use of said one of the different transmission conditions that is selected based on the reception quality measured at said given one of the wireless terminals.

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