Dual-mode methods, systems, and terminals providing reduced mobile terminal registrations
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Accused Products
Abstract
A method of operating a mobile terminal providing wireless communications can include receiving communications service from a first communications network providing service over a first coverage area. While receiving communications service from the first communications network, a first identity code can be received from a second communications network providing service over a plurality of second coverage areas wherein a first one of the second coverage areas includes the first coverage area and wherein the first identity code from the second communications network identifies availability of service with the second communications network in the first one of the second coverage areas. After loss of communications with the first communications network, a second identity code can be received from the second communications network. When the second identity code from the second communications network is different than the first identity code from the second communications network, a registration can be performed with the second communications network so that communications service can be received by the mobile terminal from the second communications network in a second one of the second coverage areas corresponding to the second identity code from the second communications network.
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Citations
41 Claims
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1-20. -20. (canceled)
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21. A method of forwarding calls to a dual-mode mobile terminal providing communications with a terrestrial communications network and a satellite communications network, the method comprising:
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storing a location identifier for the dual-mode mobile terminal wherein the location identifier identifies a location within which the mobile terminal has been most recently registered for communications service with the terrestrial communications network; and
after loss of communications between the dual-mode mobile terminal and the terrestrial communications network, identifying for the satellite communications network the location within which the dual-mode mobile terminal has been most recently registered for communications service with the terrestrial communications network. - View Dependent Claims (22, 23, 24, 25)
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26. A mobility management system that forwards calls to a dual-mode mobile terminal providing communications with a terrestrial communications network and a satellite communications network, the mobility management system comprising:
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a memory that stores a location identifier for the dual-mode mobile terminal wherein the location identifier identifies a location within which the mobile terminal has been most recently registered for communications service with the terrestrial communications network; and
a signal generator wherein after loss of communications between the dual-mode mobile terminal and the terrestrial communications network, the signal generator identifies for the satellite communications network the location within which the dual-mode mobile terminal has been most recently registered for communications service with the terrestrial communications network. - View Dependent Claims (27, 28, 29, 30)
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31. A wireless communications terminal comprising:
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a receiver that receives signals transmitted from first and second network types wherein the receiver decodes a first signal identity code transmitted by the first network type and wherein the receiver decodes a second signal identity code transmitted by the second network type; and
a memory coupled with the receiver wherein the memory stores the first signal identity code in association with the second signal identity code when both the first and second identity codes are decodable by the terminal at a common location. - View Dependent Claims (32, 33, 34, 35, 36)
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37. A dual-mode wireless communications network including a wide-area coverage network including wide-area coverage network stations and a local-area coverage network including local-area coverage network stations providing service to mobile communications terminals, the dual-mode wireless communications network comprising:
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a visitor location register associated with the local-area stations wherein the visitor location register registers which of the mobile communications terminals are currently reachable via an associated local-area station and that registers when a mobile has detached from the local-area coverage network;
a home location register associated with each mobile communications terminal wherein the home location register records a current visitor location register with which the respective mobile communications terminal is registered or a visitor location register from which the respective mobile communications terminal last detached; and
a signaling channel that exchanges information between the wide-area network and the local-area network and that provides the wide-area network with na identity of a visitor location register and associated local area station with which a particular mobile communications terminal last registered or from which the particular mobile communications terminal last detached. - View Dependent Claims (38, 39, 40)
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41-42. -42. (canceled)
Specification