Method of increasing the number of call options in a mobile telephone system
First Claim
1. A method of increasing the number of call options in a mobile telephone system having a given number of radio channels and a base station (B5) within a heavily loaded first area (A5) comprising a part of the total coverage area of the telephone system, a given number of radio channels and a base station (B2) within at least one second area (A2) with low traffic intensity contiguous to, and partially overlapping the first area, and a mobile telephone exchange (MTX) connected to the base stations and to a public telephone network via direct lines, said method comprising:
- monitoring in the mobile telephone exchange (MTX) the signal strength of subscriber signals on the radio channels from the base stations (B5 and B2) within the areas (A5 and (A2); and
switching a call from a channel in the first area (A5) to an unoccupied channel in the second area (A2) under the control of the mobile telephone exchange (MTX) when the signal strength of a given subscriber signal in said unoccupied channel exceeds a given value (So) and irrespective of the subscriber signal strength at the base station (B5) in the first area (A5).
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Accused Products
Abstract
A method of increasing the number of call options in a mobile telephone system with a mobile telephone exchange (MTX) and a number of base radio stations (B1-B8). The method utilizes the overlap existing between the coverage areas (A2,A5), between two base stations, one (A2) with low traffic intensity and the other (A5) with high traffic intensity. A mobile station (MB) in the area (A5) with the higher intensity is controlled such that it communicates via a channel belonging to the base station (B2) for the coverage area (A2) with the lower traffic intensity.
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Citations
3 Claims
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1. A method of increasing the number of call options in a mobile telephone system having a given number of radio channels and a base station (B5) within a heavily loaded first area (A5) comprising a part of the total coverage area of the telephone system, a given number of radio channels and a base station (B2) within at least one second area (A2) with low traffic intensity contiguous to, and partially overlapping the first area, and a mobile telephone exchange (MTX) connected to the base stations and to a public telephone network via direct lines, said method comprising:
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monitoring in the mobile telephone exchange (MTX) the signal strength of subscriber signals on the radio channels from the base stations (B5 and B2) within the areas (A5 and (A2); and switching a call from a channel in the first area (A5) to an unoccupied channel in the second area (A2) under the control of the mobile telephone exchange (MTX) when the signal strength of a given subscriber signal in said unoccupied channel exceeds a given value (So) and irrespective of the subscriber signal strength at the base station (B5) in the first area (A5). - View Dependent Claims (2, 3)
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Specification