LOCATION UPDATE METHOD, HETEROGENEOUS NETWORK COMMUNICATIONS SYSTEM AND DEVICE
First Claim
1. A location update method, comprising:
- receiving, by an information server, a location update request message of a first interface from a multimode terminal, wherein the request message is sent through the enabled first interface and carries a location update request of a second interface of the multimode terminal and location area information of the first interface;
searching pre-stored location area mapping information for location area information of the second interface according to the received location area information of the first interface; and
sending a location update request message of the second interface to a second Paging Coordinator (PC) of a second access network corresponding to the second interface, wherein the request message carries the found location area information of the second interface so that the second PC can update existing location area information of the second interface.
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Accused Products
Abstract
A location update method, and a heterogeneous network communications system and a device are provided herein. The method includes: an information server receives a location update request message from a multimode terminal; the information server searches the pre-stored location area mapping information for the location area information of the second interface; and the information server sends the location update request message of the second interface to a second Paging Coordinator (PC) corresponding to the second interface, where the request message carries the found location area information of the second interface so that the second PC can update existing location area information of the second interface. The system includes an information server, a first PC and a second PC. Therefore, the interfaces of the multimode terminal do not need to initiate location update frequently, message interactions between the terminal and the network are reduced, and not all interfaces of the multimode terminal need to report location area information, thus saving power.
20 Citations
17 Claims
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1. A location update method, comprising:
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receiving, by an information server, a location update request message of a first interface from a multimode terminal, wherein the request message is sent through the enabled first interface and carries a location update request of a second interface of the multimode terminal and location area information of the first interface; searching pre-stored location area mapping information for location area information of the second interface according to the received location area information of the first interface; and sending a location update request message of the second interface to a second Paging Coordinator (PC) of a second access network corresponding to the second interface, wherein the request message carries the found location area information of the second interface so that the second PC can update existing location area information of the second interface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A heterogeneous network communications system, comprising:
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an information server, connected to a first Paging Coordinator (PC) and a second PC, and configured to;
search for location area information of a second interface of a multimode terminal according to location area information of a first interface from the multimode terminal, and send a location update request message of the second interface to the second PC;the first PC, configured to;
add location update result information of the second interface from the information server to a location update response message which is to be sent to the first interface, and send the location update response message to the multimode terminal; andthe second PC, configured to update existing location area information of the second interface according to the location area information of the second interface from the information server.
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12. An information server, comprising:
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a first information module, configured to store location area mapping information; a second information module, configured to search the location area mapping information stored in the first information module for location area information of a second interface of a multimode terminal according to location area information of a first interface in a received location update request message of the first interface after receiving the request message from the multimode terminal; a third information module, configured to send a location update request message of the second interface to a second Paging Coordinator (PC), wherein the request message carries the found location area information of the second interface so that the second PC can update existing location area information of the second interface; and a fourth information module, configured to send location update result information of the second interface to a first PC after receiving a location update response message of the second interface. - View Dependent Claims (13, 14)
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15. A first Paging Coordinator (PC), comprising:
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a first updating module, configured to update existing location area information of a first interface according to location area information sent by a multimode terminal through the enabled first interface; and a first responding module, configured to;
add location update result information of a second interface from an information server to a location update response message which is to be sent to the first interface, and send the location update response message to the multimode terminal. - View Dependent Claims (16)
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17. A second Paging Coordinator (PC), comprising:
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a second updating module, configured to update existing location area information of a second interface according to location area information of the second interface from an information server; and a second responding module, configured to return a location update response message of the second interface to the information server after the second updating module finishes the update.
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Specification