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Communication System Using Relay Base Stations with Asymmetric Data Links

  • US 20080075178A1
  • Filed: 12/30/2003
  • Published: 03/27/2008
  • Est. Priority Date: 12/30/2003
  • Status: Active Grant
First Claim
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1. Method for improving spectral efficiency of a communication system that comprises at least one super base station and at least one terminal, wherein at least one relay base station is used to relay up- and downlink data between said at least one super base station and said at least one terminal, and wherein a start and a duration of up- and downlink relay base station-terminal transmission periods, in which up- and downlink transmissions between said at least one relay base station and said at least one terminal take place, and a start and a duration of up- and downlink relay base station-super base station transmission periods, in which up- and downlink transmissions between said at least one relay base station and said at least one super base station take place, are defined by a relay base station frame structure, said method comprising:

  • dynamically allocating said up- and downlink relay base station-super base station transmission periods in said relay base station frame structure under consideration of an asymmetry between said up- and downlink data relayed between said at least one super base station and said at least one terminal via said at least one relay base station.

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