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Wireless channel switching method and system therefor

A channel switching and wireless channel technology, applied in the field of wireless channel switching methods and systems, can solve problems such as large cracking, achieve the effects of enhancing security, reducing the possibility of cracking, and increasing the difficulty of cracking

Inactive Publication Date: 2009-09-02
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The GSM system is a wireless system, and its wireless interface transmits digital signals, and the A5 algorithm is not perfect and unbreakable, so there is a greater possibility of cracking

Method used

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  • Wireless channel switching method and system therefor
  • Wireless channel switching method and system therefor
  • Wireless channel switching method and system therefor

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Embodiment Construction

[0037] The technical solutions of the present invention will be further described in detail below through the accompanying drawings and embodiments.

[0038] Figure 5 It is a flowchart of the first embodiment of the wireless channel switching method of the present invention. Such as Figure 5 As shown, the method includes:

[0039] Step 11. When the MS is the calling party, the BSS assigns a signaling channel to the MS through the channel request process.

[0040] After the MS dials, it initiates an immediate assignment process: Send a channel request (Channel Request) message to the BTS on the random access channel (RACH) of the Um interface. After receiving and decoding the channel request message, the BTS requests the BSC to allocate an air interface channel. After receiving the channel allocation request message from the BTS, the BSC allocates channels to the MS, and sends an "Immediate Assignment message" (Immediate Assignment) to the MS through the BTS on the Access Grant ...

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Abstract

The embodiment of the invention relates to a wireless channel switching method and a system therefor. The embodiment of the wireless channel switching method comprises the steps of starting empty encryption and implementing signal switching of a mobile station when reaching preset triggering conditions. The embodiment of the wireless channel switching system comprises the mobile station and a network side device, and the network side device comprises a channel switching device that is used for implementing the channel switching of the mobile station when reaching preset triggering conditions after the empty encryption between the network side device and the mobile station is finished. In the embodiment of the wireless channel switching method and the system, after a network side finishes the empty encryption to the mobile station, the channel switching to the mobile station is implemented under preset triggering conditions so as to transfer the conversation position of the mobile station and increase the cracking difficulty of the conversation by leading a cracker unable to obtain sufficient conversation data, thus lowering cracking possibility and improving the conversation safety between users.

Description

Technical field [0001] The present invention relates to mobile communication technology, in particular to a wireless channel switching method and system in a mobile communication network. Background technique [0002] The Global System for Mobile communication (GSM) system consists of the following functional modules: Mobile Station (MS), Base Station Subsystem (BSS), Network and Switching Subsystem (Network and Switching) Subsystem, NSS for short) and Operation Subsystem (OSS), etc., such as figure 1 Shown. [0003] MS can be an independent device component that provides a certain service, or it can be connected to an external terminal, such as a personal computer or fax machine through an interface. The MS includes a mobile equipment (Mobile Equipment, ME for short) and a Subscriber Identity Module (SIM). ME does not need to be individually assigned to a certain user. The SIM card is a user module that stores all user information. After inserting a user's SIM card into an MS's...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W12/02H04W12/12
Inventor 郭江翁武林陈颖浩郇海滨刘绍峰
Owner HUAWEI TECH CO LTD
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