Method of uplink scrambling code distribution in WCDMA system

A technology of code allocation and cell scrambling, which is applied in code division multiplexing systems, electrical components, multiplexing communications, etc., can solve problems such as slow maintenance and search speed, difficult code maintenance and search, etc., and achieves improved Improve the connection rate, increase the search rate, and reduce the effect of scrambling code conflicts

Inactive Publication Date: 2008-02-13
BEIJING NORTHEN FIBERHOME TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current relevant specifications and related documents do not provide an efficient and optimized specific allocation method for uplink scrambling codes, mainly relying on arbitrary allocation methods, which make maintenance and search of codes difficult
Due to the huge number of uplink scrambling codes, the code maintenance and search speed is slow, so an optimized and practical uplink scrambling code allocation method is needed

Method used

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  • Method of uplink scrambling code distribution in WCDMA system
  • Method of uplink scrambling code distribution in WCDMA system
  • Method of uplink scrambling code distribution in WCDMA system

Examples

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Embodiment Construction

[0026] The present invention will be further described below with reference to an embodiment of the present invention and the accompanying drawings.

[0027]FIG. 1 is a schematic diagram of a specific embodiment of uplink scrambling code division of a wideband code division multiple access system planned by using the uplink scrambling code allocation method of the present invention.

[0028] Combining the steps in Figure 2, firstly, it is known from the network planning that the scrambling code segment reserved for PRACH and PCPCH is 0---59999. In order to allocate cell scrambling code segments to each cell marked in the area under the jurisdiction of RNC2 in Figure 1, the available uplink scrambling code segment allocated to RNC2 is the scrambling code segment with the scrambling code number 60000---69999, for the adjacent RNC jurisdiction The allocatable scrambling code segments of the area are not repeated, and the allocatable scrambling code segments allocated to the juris...

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Abstract

This invention relates to a distribution method for up scrambling code in WCDMA, which distributes non-repeated distributed scrambling code segments for adjacent radio network controller (RNC) and divides each RNC administrative zone to small areas and shared zones to assign non-repeated scrambling codes segments for them. The method can increase the distribution effect of up scrambling codes and reduces probability of failure switch when UE crosses over RNC zone.

Description

technical field [0001] The present invention relates to a method for allocating uplink scrambling codes in a wideband code division multiple access communication system (WCDMA), and more specifically relates to a method for a radio network controller (RNC) to allocate uplink scrambling codes for a user terminal (UE). Background technique [0002] In the wideband code division multiple access (WCDMA) system, the network part is divided into two parts: the radio access network (RAN) and the core network (CN). The RAN is mainly composed of the base station (NodE B) and the radio network controller (RNC). , each RNC needs to control multiple base stations (Node B), that is, the area under the jurisdiction of each RNC is divided into multiple cells, and the base station in each cell specifically implements the wireless access function of the user terminal (UE). [0003] In the WCDMA mobile communication system, the main function of the uplink scrambling code is to distinguish use...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04J13/02
Inventor 吴成明邢贺
Owner BEIJING NORTHEN FIBERHOME TECH CO LTD
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