Mobility management method for delivering calls in a microcellular network
First Claim
1. A method for registering a mobile unit with a microcellular system when the mobile unit enters the microcellular system from a macrocellular system adjacent to the microcellular system, the mobile unit maintaining registration information, the method comprising the steps of:
- providing a first offset signal from the microcellular system to the mobile unit for modifying the registration information when the mobile unit enters the microcellular system from the macrocellular system; and
registering the mobile unit with the microcellular system in response to the modifying of the registration information.
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Accused Products
Abstract
In a method of providing cellular telephone service to a mobile telephone located in an off-load cellular telephone system adjacent to a main cellular telephone system, the mobile telephone is registered with the off-load cellular telephone system upon the mobile telephone entering the off-load cellular telephone system, and then is registered with the main cellular telephone system as being located in the off-load cellular telephone system as a function of predetermined criteria. During the time in which the mobile telephone has entered the off-load cellular telephone system but has not yet registered with the main cellular telephone system as being located in the off-load cellular telephone system, rebroadcasting page signals from main cellular telephone system into the off-load cellular telephone system ensures delivery of incoming telephone calls to the mobile telephone.
39 Citations
20 Claims
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1. A method for registering a mobile unit with a microcellular system when the mobile unit enters the microcellular system from a macrocellular system adjacent to the microcellular system, the mobile unit maintaining registration information, the method comprising the steps of:
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providing a first offset signal from the microcellular system to the mobile unit for modifying the registration information when the mobile unit enters the microcellular system from the macrocellular system; and registering the mobile unit with the microcellular system in response to the modifying of the registration information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for registering a mobile unit with a microcellular system when the mobile unit enters the microcellular system from a macrocellular system adjacent to the microcellular system, comprising the steps of:
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providing a macrocellular registration signal from the macrocellular system to the mobile unit before the mobile unit enters the microcellular system; providing a microcellular registration signal from the microcellular system to the mobile unit when the mobile unit enters the microcellular system; and registering the mobile unit with the microcellular system in response to the microcellular registration signal, wherein the microcellular and macrocellular systems have the same system identification signals. - View Dependent Claims (11, 12, 13, 14, 15)
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16. A method for notifying a macrocellular system that a mobile unit has traveled into an adjacent microcellular system, comprising the steps of:
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registering the mobile unit with the microcellular system when the mobile unit travels into the microcellular system; and registering the mobile unit with a communications interface system after registering the mobile unit with the microcellular system for notifying the macrocellular system that the mobile unit has entered into the microcellular system. - View Dependent Claims (17, 18, 19, 20)
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Specification