Method for determining multiple interference in a mobile radio system

Patent 5179722 Issued on January 12, 1993. Estimated Expiration Date:

November 13, 2010. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

Technique for efficient spectrum utilization in mobile radio systems using space diversity
Patent #: 4355411
Issued on: 10/19/1982
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Issued on: 01/20/1987
Inventor: Alexis

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Patent #: 4667202
Issued on: 05/19/1987
Inventor: Kammerlander , et al.

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Patent #: 4736453
Issued on: 04/05/1988
Inventor: Schloemer

Aqueous dispersions, a process for their preparation and the use of the dispersions as sizing agents
Patent #: 4743303
Issued on: 05/10/1988
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Method for assigning channel reuse levels in a multi-level cellular system Patent #: 5038399
Issued on: 08/06/1991
Inventor: Bruckert

Inventors

Application

No. 611522 filed on 11/13/1990

US Classes:

455/446, Including cell planning or layout455/67.7With indication (e.g., visual or voice signalling, etc.)

Examiners

Primary: Eisenzopf, Reinhard J.
Assistant: Urban, Edward F.

Attorney, Agent or Firm

Oblon, Spivak, McClelland, Maier & Neustadt

Foreign Patent References

90/10341 SE. 07/13/1990
90/10342 SE. 07/13/1990
9010341 WO. 07/13/1990
9010342 WO. 07/13/1990

International Class

H04Q 007/00

Foreign Application Priority Data

1989-12-18 SE

Abstract

The invention relates to a method for determining the total downlink or uplink interference percentage in the coverage area of a designated base station for a mobile radio system with a given channel plan. The invention provides for the need to carry out, after a conventional channel allocation has been carried out, a check of the extent to which total interference requirements are met. The method consists in that field strengths from all base stations are measured on all traffic routes within the geographical area of the mobile radio system. The interference is calculated at each point within the coverage area of a base station for each relevant pair of base stations, preferably base stations which are located in the same channel and base stations which are located in an adjacent channel. The interferences of all the relevant pairs of base stations are added in order to form the total interference at each point. The invention makes it possible to calculate the total interference percentage which constitutes the ratio between the length of road distance with disturbed coverage and the length of total road distance with coverage. The interference percentage is calculated suitably within a contour which limits the coverage area of the base station concerned.