Mobile radio telephone system
AssigneeSiemens Aktiengesellschaft
InventorGerhard Ritter
Life of this patent
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Abstract
A mobile radio telephone system comprises a plurality of operatively coupled base stations, having first and second radio communications apparatus which operate to effect radio communications with at least one mobile station via first and second radio signals with radio frequencies which occupy common parts of the radio frequency spectrum, wherein a frequency re-use pattern associated with the first radio communications apparatus is substantially matched to a frequency re-use pattern associated with the second radio communications apparatus.
Claims23
A mobile radio telephone system comprising:
- a plurality of operatively coupled base stations, said base stations having first and second radio communications apparatus which effect radio communications with at least one mobile station via at least first and second radio signals having radio frequencies which occupy a common radio frequency spectrum,
- wherein
- a first frequency re-use pattern associated with said first radio communications apparatus is at least substantially matched to a second frequency re-use pattern associated with said second radio communications apparatus;
- and
- a plurality of cells, each of said cells being associated with at least one of said base stations,
- wherein
- a cluster size associated with the first radio communications apparatus is at least substantially equal to a cluster size associated with the second radio communications apparatus scaled by a predetermined factor, to provide a match between the first and the second frequency re-use patterns associated with the first and the second communications apparatus.
A mobile radio telephone system comprising:
- a plurality of operatively coupled base stations, said base stations having first and second radio communications apparatus which effect radio communications with at least one mobile station via at least first and second radio signals having radio frequencies which occupy a common radio frequency spectrum;
- wherein
- a first frequency re-use pattern associated with said first radio communications apparatus is at least substantially matched to a second frequency re-use pattern associated with said second radio communications apparatus;
- and wherein
- said second radio communications apparatus comprises a means for communicating data via said second radio signal which has a different amount of co-channel interference present at a receiver of said second communications apparatus than can be tolerated by said first radio signals at a receiver of said first radio communications apparatus.
A mobile radio telephone system comprising:
- a plurality of operatively coupled base stations, said base stations having first and second radio communications apparatus which effect radio communications with at least one mobile station via at least first and second radio signals having radio frequencies which occupy a common radio frequency spectrum;
- wherein
- a first frequency re-use pattern associated with said first radio communications apparatus is at least substantially matched to a second frequency re-use pattern associated with said second radio communications apparatus;
- and wherein
- the base stations further comprise directional antennas which divide each associated cell into a plurality of sectors, each sector being allocated to at least one different radio frequency carrier from at least one of said first and said second radio communications apparatus.
A method of combining first and second radio communications apparatus in a mobile radio system, comprising the steps of:
- allocating carrier frequencies in accordance with a first frequency re-use pattern associated with the first radio communications apparatus to a plurality of base stations, and
- matching carrier frequencies in accordance with a second frequency re-use pattern associated with the second communications apparatus to the first frequency re-use pattern;
- and
- arranging a cluster size of the first frequency re-use pattern to be substantially equal to a cluster size of the second frequency re-use pattern, scaled by a predetermined factor.
Dependencies are inferred from the claim text.