Handover for cellular radio communications
AssigneeIntel Corporation
InventorMuthaiah Venkatachalam
Life of this patent
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Abstract
An improved handover process is described for a cellular wireless network. In one example, a method includes registering a mobile station to a first base station and a first gateway, handing the mobile station over to a second base station coupled to the first gateway, selecting a second gateway coupled to the mobile station, registering the mobile station to the second gateway, de-registering the mobile station from the first gateway, and handing the mobile station over to a third base station coupled to the second gateway and not coupled to the first gateway.
Claims20
A method comprising:
- registering and connecting a mobile station to a first base station and a first gateway;
- handing the mobile station over to a second base station and connecting the mobile station to the second base station while the mobile station is registered to the first gateway, the second base station being coupled to the first gateway;
- selecting a second gateway coupled to the second base station;
- registering the mobile station to the second gateway while the mobile station is connected to the second base station;
- de-registering the mobile station from the first gateway after registering the mobile station to the second gateway;
- and
- handing the mobile station over to a third base station and connecting the mobile station to the third base station while the mobile station is registered to the second gateway, the third base station being coupled to the second gateway and not coupled to the first gateway.
An apparatus comprising:
- a first cluster having a plurality of gateways;
- a plurality of base stations coupled to the gateways, a first one of the base stations registering and connecting a mobile station to the first base station and a first gateway of the first cluster;
- a second cluster having a plurality of gateways;
- at least one common base station coupled to a gateway of the first cluster and to a gateway of the second cluster, the common base station receiving a handover of the mobile station from the first base station while the mobile station is registered to the first gateway, registering the mobile station to a second gateway of the second cluster, de-registering the mobile station from the first gateway;
- and
- a third base station coupled to a gateway of the second cluster receiving a handover of the mobile station from the common base station while the mobile station is registered to the second gateway of the second cluster.
An apparatus comprising:
- a first cluster having a plurality of gateways;
- a plurality of base stations coupled to the plurality of gateways of the first cluster, a first one of the base stations registering and connecting a mobile station to the first base station and a first gateway of the first cluster;
- a second cluster having a second a plurality of gateways;
- and
- a second gateway of the first cluster coupled to the second a base station of the first cluster and to a third base station of the second cluster, the second base station receiving a handover of the mobile station from the first base station while the mobile station is registered to the first gateway, registering the mobile station to a second gateway of the second cluster, de-registering the mobile station from the first gateway, and the third base station receiving a handover of the mobile station from the second base station while the mobile station is registered to the second gateway.
Dependencies are inferred from the claim text.