Inter-standard switching method ensuring lossless transmission of packet-switched domain data and device

Abstract

The invention discloses an inter-standard switching method ensuring lossless transmission of packet-switched domain data. When standard switching between GSM and TD-SCDMA / WCDMA is carried out, uplink of a data packet is suspended, the received data packet is temporarily stored and standard switching of an access layer is carried out; then, data plane switching is launched and data channels under new standard are established on the data plane; later, the data channels before switching are released; finally, unsent data packets and temporarily stored data packets are ranked according to the serial number and are sent to the network side through the data channels under new standard. The invention also discloses an inter-standard switching device ensuring lossless transmission of packet switch domain data. By adopting the invention, integrity of the packet-switched domain data packet can be realized when a mobile terminal is switched between the TD-SCDMA / WCDMA system and the GSM system, and continuity, correctness and smoothness of data transmission after switching are ensured.

Description

technical field [0001] The invention relates to a switching technology between TD-SCDMA / WCDMA and GSM standards, in particular to an inter-standard switching method and device for ensuring lossless transmission of packet switching domain data. Background technique [0002] Global System for Mobile Communications (GSM, Global System for Mobile Communications), commonly known as "Global Communications", is the second-generation mobile communication standard, a mobile communication technology standard originated in Europe, and its development purpose is to allow all parts of the world to use one The mobile phone network standard allows users to travel all over the world with a mobile terminal. [0003] Time Division-Synchronous Code Division Multiple Access (TD-SCDMA, Time Division-Synchronous Code Division Multiple Access) is a third-generation mobile communication standard proposed by China; Wideband Code Division Multiple Access (WCDMA, Wideband Code Division Multiple Access...

AI Technical Summary

Problems solved by technology

[0006] However, in the prior art, when the mobile terminal is switched between systems, it is usually necessary to interrupt the related services of the mobile terminal.

In addition, when the data packets are transmitted at the data level of the packet switching domain, the full copy of the data packets may cause a certain burden on the system, which will cause adverse consequences such as a decrease in the operating speed of the mobile terminal and an increase in power consumption.

Therefore, in the prior art, the method of interrupting services to realize standard switching will affect the smooth progress of mobile terminal-related services.

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