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Method and device for real-time generation of auxiliary synchronous code in WCDMA system

An auxiliary synchronization code and auxiliary synchronization technology, applied in the field of communication, can solve problems such as cost and hardware resource occupation, and achieve the effect of reducing resources and realizing dynamic generation

Active Publication Date: 2007-03-14
SANECHIPS TECH CO LTD
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Problems solved by technology

In the cell search process, due to the high chip rate requirements, the above method needs to save all the bits inside the hardware device, call and reuse them when the hardware is implemented, which causes the occupation of hardware resources and huge consumption.

Method used

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  • Method and device for real-time generation of auxiliary synchronous code in WCDMA system
  • Method and device for real-time generation of auxiliary synchronous code in WCDMA system
  • Method and device for real-time generation of auxiliary synchronous code in WCDMA system

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Embodiment Construction

[0044] Various specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0045] In the method and device for generating auxiliary synchronization codes in real time in the WCDMA system of the present invention, its core invention is to combine the corresponding time slot number of each time slot and the corresponding scrambling code group number to derive the Hada code corresponding to the secondary synchronization code No., according to the characteristics of the Hada code sequence, a simple hardware algorithm is derived to calculate the Hada code sequence; and according to the characteristics of the Z sequence, a simple hardware algorithm is derived to calculate the Z sequence, and then the corresponding bits of the Hada code sequence and the Z sequence are XORed Generate auxiliary synchronization codes in real time, thus saving a lot of hardware resources.

[0046] WCDMA system auxiliary synchronization ...

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Abstract

This invention discloses one method and device to generate assistant synchronous codes in WCDMA system, which comprises the following steps: setting preset assistant codes reference values; converting above reference values into assistant codes address signals and reading current gap assistant codes; converting codes into relative hade matrix row numbers; according number to generate relative hade sequence to generate Z sequence; according to the sequence to generate assistant synchronous code sequence.

Description

technical field [0001] The present invention relates to a method and device for generating an auxiliary synchronization code in a Wide Code Division Multiple Access WCDMA (Wide Code Multiple Access) wireless communication system in the communication field, in particular to a method and a device for generating an auxiliary synchronization code in real time when a mobile terminal searches for a cell . Background technique [0002] In wideband code division multiple access mobile communication system, because WCDMA system base stations do not require accurate synchronization, it mainly identifies cells through different scrambling codes, so cell search is one of the key technologies of WCDMA physical layer. When the mobile terminal starts up, it needs to get in touch with the system. First, it needs to get timing synchronization with the signal of a certain cell. This process from no contact to timing synchronization is the cell search process of the mobile station. Through the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/707H04B7/26H04B1/7083H04J13/10
Inventor 邓良慧黄舒怀安军贺
Owner SANECHIPS TECH CO LTD
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