Communication system
First Claim
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1. A base station for communicating with a mobile station, the base station comprising:
- a processor configured to generate, when the base station is operating as a target base station, a path switch request that includes a tracking area identity (TAI), an E-UTRAN cell global identifier (ECGI), a list of Evolved Packet System (EPS) bearers to be switched, and a closed subscriber group (CSG) access mode of the base station when operating as the target base station; and
a transceiver circuit configured to transmit, when the mobile station is engaged in a handover to the base station when operating as a target base station, the path switch request that includes the TAI, the ECGI, the list of EPS bearers to be switched, and the CSG access mode, to a Mobility Management Entity (MME),wherein the list of EPS bearers to be switched comprises, for each EPS bearer, a respective transport layer address and a respective tunnel end point identifier.
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Abstract
A base station for communicating with a mobile station, the base station including a processor configured to generate, when the base station is operating as a target base station, a path switch request, and a transceiver circuit configured to transmit, when the mobile station is engaged in a handover to the base station when operating as a target base station, the path switch request to a Mobility Management Entity (MME), wherein the path switch request includes a closed subscriber group (CSG) access mode of the base station operating as a target base station.
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Citations
11 Claims
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1. A base station for communicating with a mobile station, the base station comprising:
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a processor configured to generate, when the base station is operating as a target base station, a path switch request that includes a tracking area identity (TAI), an E-UTRAN cell global identifier (ECGI), a list of Evolved Packet System (EPS) bearers to be switched, and a closed subscriber group (CSG) access mode of the base station when operating as the target base station; and a transceiver circuit configured to transmit, when the mobile station is engaged in a handover to the base station when operating as a target base station, the path switch request that includes the TAI, the ECGI, the list of EPS bearers to be switched, and the CSG access mode, to a Mobility Management Entity (MME), wherein the list of EPS bearers to be switched comprises, for each EPS bearer, a respective transport layer address and a respective tunnel end point identifier. - View Dependent Claims (2, 3, 5, 6, 7, 11)
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4. A mobility management entity (MME) for a communications network comprising a core network and a plurality of base stations, said mobility management entity comprising:
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a memory, adapted to store closed subscriber group (CSG) information; wherein the controller is configured to; receive a path switch request from a target base station, wherein the path switch request received from the target base station includes a tracking area identity (TAI), an EUTRAN cell global identifier (ECGI), a list of Evolved Packet System (EPS) to be switched, and a CSG access mode of the target base station; determine CSG membership based on a CSG ID and the CSG access mode received in the path switch request from the target base station; and update the stored CSG information in the event that a mobile device is handed over from a source base station to the target base station, wherein the stored CSG information is updated based on the CSG access mode of the target base station, wherein the list of EPS bearers to be switched comprises, for each EPS bearer, a respective transport layer address and a respective tunnel end point identifier.
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8. A method of operating a base station for communicating with a mobile station, the method comprising:
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generating, when the base station is operating as a target base station, a path switch request that includes a tracking area identity (TAI), an E-UTRAN cell global identifier (ECGI), a list of Evolved Packet System (EPS) to be switched, and a closed subscriber group (CSG) access mode of the base station when operating as the target base station; and transmitting, when the mobile station is engaged in a handover to the base station when operating as a target base station, the path switch request that includes the TAI, the ECGI, the list of EPS bearers to be switched, and the CSG access mode, to a Mobility Management Entity (MME); wherein the path switch request includes the TAI, the ECGI, the list of EPS bearers to be switched, and the CSG access mode of the base station operating as a target base station, and wherein the list of EPS bearers to be switched comprises, for each EPS bearer, a respective transport layer address and a respective tunnel end point identifier. - View Dependent Claims (10)
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9. A method of operating a mobility management entity (MME) for a communications network comprising a core network and a plurality of base stations, the method comprising:
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receiving a path switch request from a target base station, wherein the path switch request received from the target base station includes a tracking area identity (TAI), an EUTRAN cell global identifier (ECGI), a list of EPS bearers to be switched, and a closed subscriber group (CSG) access mode of the target base station; determining CSG membership based on a CSG ID and the CSG access mode received in the path switch request from the target base station; updating stored CSG information in the event that a mobile device is handed over from a source base station to the target base station, wherein the stored CSG information is updated based on the CSG access mode of the target base station, wherein the list of EPS bearers to be switched comprises, for each EPS bearer, a respective transport layer address and a respective tunnel end point identifier.
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Specification