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Method for switching between CDMA system and wireless LAN of mobile terminal

A wireless local area network and mobile terminal technology, applied in the field of mobile terminal switching between two wireless systems, can solve the problems of inability to provide end-user billing mechanism, limitation of wide application of wireless local area network, limited wireless local area network authentication and charging mechanism, etc.

Inactive Publication Date: 2004-08-25
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, the WLAN provides limited authentication and billing mechanisms for terminal access. It can only provide authentication at the physical transport layer, and cannot provide a billing mechanism for end users, so it cannot meet the needs of carrier-level applications.
Moreover, its coverage is limited to hotspot areas, which greatly restricts the wide application of WLAN.
[0009] After nearly 20 years of development of the CDMA system, CDMA2000 1X has been commercialized on a large scale at present, not only its authentication and billing mechanisms are relatively mature and perfect, but also its coverage is ubiquitous; but due to bandwidth limitations, CDMA2000 1X The ability of the system to provide high-speed access services for end users is limited

Method used

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  • Method for switching between CDMA system and wireless LAN of mobile terminal
  • Method for switching between CDMA system and wireless LAN of mobile terminal
  • Method for switching between CDMA system and wireless LAN of mobile terminal

Examples

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Embodiment Construction

[0030] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. Such as figure 1 Shown: outside the dotted line box is the function node of CDMA2000 1X system. The dotted box is the function node added after the CDMA2000 1X. system integrates the wireless LAN function. in:

[0031] The packet control function node 12 (PCF) mainly realizes the connection between the air wireless interface and the packet data service node;

[0032] Packet data service node 14 (PSDN) realizes the access of CDMA2000 1X and wireless LAN users, and provides two access methods for CDMA2000 1X system and wireless LAN users: simple IP (Simple IP) and mobile IP (Mobile IP) services, Save the user's PPP connection information; in addition, when the user switches between the wireless LAN and the CDMA2000 1X system, the packet data service node is also used to identify whether the current user is a switching user, that is, to determine whether...

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Abstract

This invention discloses a switching method for mobile terminals between CDMA 2000IX system and RAN. When a terminal finds out the RAN signals are reduced or lost, it calls the CDMA 2000IX system, PCE sets up R-D connection with PDSN who judges the said user switched, it opens the transmission channel to CDMA 2000 IX system and cuts off R-P connection between PDSN and APGW, otherwise, when the terminal sees RAN signals, it can dial to set up connection with APGW which sets up R-P connection with PDSN, after it judges the user is the switched one, it opens the channel to the RAN and cuts off R-P connection between PDSN and RCF.

Description

technical field [0001] The invention relates to a method for a mobile terminal to switch between two wireless systems, in particular to a method for a mobile terminal to switch between a CDMA2000 1X system and a wireless local area network (Wireless LAN, WLAN for short). Background technique [0002] Code Division Multiple Access (CDMA for short) is a commonly used multiple access modulation technology based on wideband spread spectrum technology. The CDMA2000 1X system follows the IS-2000 standard and is the first stage of the development of CDMA2000 cellular mobile communication technology, which can provide a packet data transmission rate of 153.6Kbps. [0003] figure 1 Outside the middle dotted line frame are the functional nodes of the existing CDMA2000 1X system, wherein the wireless transceiver 11 (BTS) establishes a wireless coverage area in the cell for mobile terminal communication, and the base station controller (BSC) can control each BTS; Control Function Node...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/26H04L12/28H04L12/46H04L12/66H04W36/14H04W36/18H04W36/36H04W48/18H04W76/02H04W84/12
CPCH04W36/14H04W36/18H04W36/1446H04B7/2628
Inventor 许秀莉王华火
Owner ZTE CORP
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