Method, apparatus and system for obtaining location area information during handover between heterogeneous networks
AssigneeHuawei Technologies Co., Ltd.
InventorYanglai Shuai
Life of this patent
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Abstract
A method obtains area information during handover between heterogeneous networks. A mobility management entity of a destination network receives location area related information of a User Equipment (UE) from a mobility management entity of a source network. The mobility management entity obtains location area information required by the UE according to the location area related information. The mobility management entity sends the location area information required by the UE to the UE.
Claims12
A method for obtaining location area information during handover between heterogeneous networks, the method comprising:
- receiving, by a mobility management entity of a destination network, a Tracking Area Identity (TAI) of a User Equipment (UE) from a mobility management entity of a source network;
- obtaining, by the mobility management entity of the destination network, a TAI list according to the TAI;
- and
- sending, by the mobility management entity of the destination network, the TAI list to the UE via the mobility management entity of the source network.
A mobility management entity of a destination network comprising:
- a receiver configured to receive a Tracking Area Identity (TAI) of the UE from a mobility management entity of a source network;
- a processor configured to obtain a TAI list in accordance with the TAI;
- and
- a transmitter configured to send the TAI list to the UE via the mobility management entity of the source network.
A communication system comprising:
- a User Equipment (UE) configured to send a attach request to a mobility management entity of the destination network to initiate a handover;
- and
- the mobility management entity of a destination network configured to receive a Tracking Area Identity (TAI) of the UE from a mobility management entity of a source network;
- configured to construct a TAI list in accordance with the TAI;
- and configured to send the TAI list to the UE.
Dependencies are inferred from the claim text.