Method and device for improving service performance of WCDMA (Wideband Code Division Multiple Access)mobile communication system

Abstract

The invention discloses a method for improving the service performance of a WCDMA(Wideband Code Division Multiple Access)mobile communication system. The method comprises the following steps that a serving radio network controller decides to add one cell or a number of cells to a user equipment active set, and sends an indication of establishing an F-DPCH (Fractional Dedicated Physical Channel) between the cell and user equipment to a drift radio network controller; and the drift radio network controller determines whether the cell supports an enhanced F-DPCH, and if so, establishes the enhanced F-DPCH between the cell and the user equipment, otherwise, establishes a common F-DPCH between the cell and the user equipment. The method allows a cell supporting the common F-DPCH and the enhanced F-DPCH to be in the same active set, thereby avoiding the occurrence of hard handoff and improving the service quality. The invention also correspondingly discloses a device for improving the service performance of the WCDMA mobile communication system and the device comprises the serving wireless network controller and the drift wireless network controller.

Description

technical field [0001] The invention belongs to the technical field of communication, and in particular relates to a method and a device for improving the service performance of a WCDMA (Wideband Code Division Multiple Access) mobile communication system. Background technique [0002] The R99 standard protocol of the WCDMA mobile communication system provides users with a maximum rate of 384kbps, and hot spots can provide a rate of 2Mbps. From the perspective of the performance of the Dedicated Channel (DCH for short) and the Downlink Shared Channel (DSCH for short) that R99 can support for transmitting packet data, for users in general areas, the R99 standard protocol provides The function of transmitting packet services can already meet the needs of users, but with the increase of packet service users and the demand for high-speed packet services, the rate and bandwidth provided by R99 will not be able to meet the needs of users in hotspot areas; therefore, the R5 standard...

AI Technical Summary

Problems solved by technology

After the F-DPCH channel is introduced, multiple users can share one F-DPCH in a time-division manner, which is equivalent to 10 users occupying only one 256 spreading code. The offset is staggered to achieve, but this implementation has a big disadvantage: because multiple links of soft handover need to be time aligned, so for the case of adding links, the timing relationship of adding links is fixed, The wireless network controller cannot be adjusted, so users cannot be allocated to the idle positions on the allocated F-DPCH channel, and finally the F-DPCH channel cannot be fully reused

[0015] However, both the normal F-DPCH channel and the enhanced F-DPCH channel are supported by the Node B capability. There will be Node Bs with different support capabilities in the entire networking network. Currently, the Iur port of the 3GPP protocol is used for the enhanced F-DPCH channel. It is configured according to the level of user equipment, that is, it does not support cells configured with normal F-DPCH channels and enhanced F-DPCH channels in the same active set, then there is the following problem: If a DPCH cell moves to a cell that does not support the enhanced F-DPCH channel, the cell that does not support the enhanced F-DPCH channel cannot be added to the active set of the user equipment, so the service cannot have soft handover gain. When the serving cell changes, Only the process of hard handover can be performed, so compared with soft handover, it will affect business performance and user experience. For example, the service interruption time will be longer than soft handover, which will lead to a decrease in throughput in the handover area

Images