Soft switching descending data distributing method

Abstract

A method for distributing downlink data of replace soft switch includes judging whether data is distributed to one the same radio resource module or not and copying data between IUB interface module and radio resource module then distributing data to new and old radio link managed by one the same radio resource module if it is or otherwise copying data in IUB interface module and distributing data to new and old radio link managed by different radio resource module.

Description

technical field [0001] The invention relates to the communication field, in particular to a softer handover technology. Background technique [0002] In a cellular mobile communication system, a user equipment (User Equipment, "UE") usually needs to move in different cells during a call. In order to provide continuous and uninterrupted services, when the UE moves from one cell to another, handover processing is required. In an existing mobile communication system, there are usually several types of handover of a UE, such as hard handover, soft handover, and softer handover. [0003] Hard handover is to delete the radio link in the source cell first, and then establish a new radio link in the target cell. However, there is a link interruption during this process, which may affect the voice quality and even cause call drop. Both soft handover and softer handover are to establish a radio link in the target cell first, and then delete the radio link in the source cell. The g...

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Problems solved by technology

However, if Figure 4 As shown, when the source cell and the target cell only need to be managed by one wireless resource module, the multicast technology cannot be used, and the data can only be copied twice in the IUB interface module, which is relatively redundant and efficient. relatively low

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