Method for mobile station location registration with dynamic cell grouping for radiotelephone systems
First Claim
1. A method for registering a mobile station in a radiotelephone communication system, the radiotelephone communication system including a plurality of base stations and a network controller coupled to each base station of the plurality of base stations, each base station of the plurality of base stations serving a respective service area, the mobile station having previously registered in a last registered service area, the last registered service area being uniquely identified in the radiotelephone communication system by a last registered base station, the method comprising the steps of:
- transmitting system information from a first base station to the mobile station, the first base station serving a first service area, the first service area being surrounded by one or more ranks of service areas, the system information including a cell grouping level and a first base station identifier, the cell grouping level defining a group of one or more service areas including the first service area and indicating a number of the one or more ranks of service areas surrounding the first service area, the first base station identifier uniquely identifying the first service area;
determining at the mobile station whether the group includes the last registered service area, includingrelating the first base station identifier and the last registered base station identifier, andin response thereto, determining whether the last registered service area is within one rank of the one or more ranks of service areas; and
when the group does not include the last registered service area, registering the mobile station.
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Accused Products
Abstract
A method for registering a mobile station (307) in a radiotelephone communication system (300). The mobile station (307) receives system information from a base station (321), including a cell grouping level. The mobile station (307) determines if it is registered with the base station (321). If not, the mobile station (307) registers. The network controller of the radiotelephone communication system (300) automatically registers the mobile stations with all base stations defined by the cell grouping level. The mobile station (307), using the same algorithm, maintains a record of the base stations with which it is automatically registered.
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Citations
12 Claims
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1. A method for registering a mobile station in a radiotelephone communication system, the radiotelephone communication system including a plurality of base stations and a network controller coupled to each base station of the plurality of base stations, each base station of the plurality of base stations serving a respective service area, the mobile station having previously registered in a last registered service area, the last registered service area being uniquely identified in the radiotelephone communication system by a last registered base station, the method comprising the steps of:
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transmitting system information from a first base station to the mobile station, the first base station serving a first service area, the first service area being surrounded by one or more ranks of service areas, the system information including a cell grouping level and a first base station identifier, the cell grouping level defining a group of one or more service areas including the first service area and indicating a number of the one or more ranks of service areas surrounding the first service area, the first base station identifier uniquely identifying the first service area; determining at the mobile station whether the group includes the last registered service area, including relating the first base station identifier and the last registered base station identifier, and in response thereto, determining whether the last registered service area is within one rank of the one or more ranks of service areas; and when the group does not include the last registered service area, registering the mobile station. - View Dependent Claims (2, 3, 4, 5)
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6. A method of registering a mobile station in a radiotelephone system, the radiotelephone system including a plurality of base stations coupled with a network controller and configured for radio communication with the mobile station, the method comprising the steps of:
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registering the mobile station with a first base station; at the mobile station; storing a first base station identifier; receiving a first signal from the first base station and a second signal from a second base station; detecting a received signal characteristic of the first signal and the second signal; when the received signal characteristic of the first signal is not acceptable and the received signal characteristic of the second signal is acceptable, receiving a control signal from the second base station, the control signal including a second base station identifier and a cell grouping level; determining, from the cell grouping level, the first base station identifier and the second base station identifier, if the mobile station is registered with the second base station; if the mobile station is not registered with the second base station, registering with the second base station; and at the network controller; in response to registration of the mobile station with the second base station, registering the mobile station with a group of base stations, the group of base stations defined by the cell grouping level and the second base station identifier. - View Dependent Claims (7, 8, 9, 10, 11, 12)
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Specification