Method and system for inter-operator handover between WCDMA and GSM
First Claim
1. A method of inter-operator handover in a mobile telecommunications network comprising a first operator of a first sub-network operated in a wideband code division multiplex access (WCDMA) mode having a plurality of first radio coverage areas, and a second operator of both a second sub-network and a third sub-network, wherein the second sub-network is operated in a radio frequency in accordance with the Global System for Mobile Communications (GSM) mode having a plurality of second radio coverage areas partly overlapping with the first radio coverage areas, and the third sub-network is operated in the WCDMA mode having a plurality of third radio coverage areas, and wherein the handover is performed for a mobile terminal of the first operator between the first and second operators when the mobile terminal is located in an overlapped section of the first coverage areas and the second coverage areas, said method comprising the steps of:
- providing a first list of first radio coverage areas visible to the mobile terminal for allowing the mobile terminal to access the first radio coverage areas through the first sub-network when the mobile terminal moves into the first coverage areas; and
providing a second list of second radio coverage areas to the mobile terminal for allowing the mobile terminal to access the second coverage areas through the second sub-network when the mobile terminal is located in the second coverage areas beyond the first coverage areas.
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0 Petitions
Accused Products
Abstract
A method and system for inter-operator handover in a telecommunications network comprising a greenfield WCDMA operator and a GSM/WCDMA operator. When a mobile terminal of the greenfield operator is moving from the coverage area of the home network to the GSM/WCDMA area, a neighbor list of GSM cells is provided to the mobile terminal for handover to a GSM cell when the home network coverage is not available. When the mobile terminal is returning home from the GSM/WCDMA area, a neighbor list of the home cells is provided to the mobile terminal so that the greenfield mobile station is connected to its home network whenever there is coverage. Preferably, the neighbor lists are provided to the mobile terminal only in the connected mode.
72 Citations
18 Claims
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1. A method of inter-operator handover in a mobile telecommunications network comprising a first operator of a first sub-network operated in a wideband code division multiplex access (WCDMA) mode having a plurality of first radio coverage areas, and a second operator of both a second sub-network and a third sub-network, wherein the second sub-network is operated in a radio frequency in accordance with the Global System for Mobile Communications (GSM) mode having a plurality of second radio coverage areas partly overlapping with the first radio coverage areas, and the third sub-network is operated in the WCDMA mode having a plurality of third radio coverage areas, and wherein the handover is performed for a mobile terminal of the first operator between the first and second operators when the mobile terminal is located in an overlapped section of the first coverage areas and the second coverage areas, said method comprising the steps of:
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providing a first list of first radio coverage areas visible to the mobile terminal for allowing the mobile terminal to access the first radio coverage areas through the first sub-network when the mobile terminal moves into the first coverage areas; and
providing a second list of second radio coverage areas to the mobile terminal for allowing the mobile terminal to access the second coverage areas through the second sub-network when the mobile terminal is located in the second coverage areas beyond the first coverage areas. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A system for inter-operator handover in a mobile telecommunications network comprising a first operator of a first sub-network operated in a wideband code division multiplex access (WCDMA) mode having a plurality of first radio coverage areas, and a second operator of both a second sub-network and a third sub-network, wherein the second sub-network is operated in a radio frequency in accordance with the Global System for Mobile Communications (GSM) mode having a plurality of second radio coverage areas partly overlapping with the first radio coverage areas, and the third sub-network is operated in the WCDMA mode having a plurality of third radio coverage areas, and wherein the handover is performed for a mobile terminal of the first operator between the first and the second operators when the mobile terminal is located in an overlapped section of the first coverage areas and the second coverage areas, said system comprising:
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a first means, for providing a first list of first radio coverage areas visible to the mobile terminal for allowing the mobile terminal to access the first radio coverage areas through the first sub-network when the mobile terminal moves into the first coverage areas; and
a second means, for providing a second list of second radio coverage areas to the mobile terminal for allowing the mobile terminal to access the second coverage areas through the second sub-network when the mobile terminal is located in the second coverage areas beyond the first coverage areas. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification