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Methods and apparatus for updating mobile node location information

A technology for mobile nodes and location information, applied in the field of communication systems, can solve problems such as increasing communication overhead, reducing tracking life, and increasing power consumption

Inactive Publication Date: 2010-09-01
QUALCOMM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As such, there is a need for a lightweight location update paging mechanism that can reduce location / paging area size without unduly increasing communication overhead or increasing power consumption (reducing tracking lifetime)

Method used

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  • Methods and apparatus for updating mobile node location information
  • Methods and apparatus for updating mobile node location information
  • Methods and apparatus for updating mobile node location information

Examples

Experimental program
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Embodiment Construction

[0027] figure 1 An exemplary communication system 100 is shown, such as a cellular communication network, comprising a plurality of nodes interconnected by communication links. Nodes in exemplary communication system 100 may exchange information based on a communication protocol such as the Internet Protocol (IP) using signals such as messages. The communication links of system 100 may be implemented using, for example, wire, fiber optic cables, and / or wireless communication techniques. The exemplary communication system 100 includes a plurality of end nodes 134 , 136 , 144 , 146 , 154 , 156 that access the communication system through a plurality of access nodes 130 , 140 , 150 . End nodes 134, 136, 144, 146, 154, 156 may be, for example, wireless communication devices or terminals, while access nodes 130, 140, 150 may be, for example, wireless access routers or base stations. Exemplary communication system 100 also includes several other nodes, which may be required in ord...

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Abstract

Location update techniques are described. A dormant mobile node updates its location information by sending a first message over a wireless link to an access node. The access node generates a second update message in response to the first message. The second message includes a mobile node identifier and, in some embodiments is directed to the mobile node. The second message is received by a tracking agent, which updates location information corresponding to the mobile node. In the case where second message is an IP message and is routed to the mobile node using Mobile IP, a Mobile IP home agent routes the second message to the mobile node's last point of network attachment where the tracking agent is located and intercepts the message. The tracking agent may send a response message to theaccess node sending the second message.

Description

technical field [0001] The present invention relates to communication systems, and more particularly to methods and apparatus for location tracking and paging in wireless, eg, cellular, communication networks. Background technique [0002] In a typical cellular communication network, a group of geographically dispersed base stations provide wireless access to a communication infrastructure. Users with wireless communication devices, or terminals, are able to establish direct communication links with appropriate base stations and then exchange information with other users and / or end systems throughout the communication network. Generally, such systems are capable of supporting a variety of different applications (eg, telephony, text messaging, streaming audio / video, web browsing, file transfer, etc.); however, traditional systems were originally designed for telephony. Information exchanged over the access link includes user data as well as control signaling to support the a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W68/00H04W12/10
CPCH04W12/106
Inventor 斯考特·M·科森拉杰夫·拉罗阿威森特·帕克萨亚德夫·威卡塔·阿普拉迈克尔·C.·范德维恩
Owner QUALCOMM INC