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Method and system for implementing uplink and downlink switching of TD-SCDMA repeater

A code division multiple access and time division synchronization technology, which can be used in transmission systems, relay system monitoring, transmission monitoring, etc., and can solve the problem of high technical complexity

Active Publication Date: 2008-03-26
WUHAN HONGXIN TELECOMM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method has the following two problems: 1. Modify the existing TD-SCDMA protocol; 2. High technical complexity

Method used

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  • Method and system for implementing uplink and downlink switching of TD-SCDMA repeater

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Embodiment Construction

[0021] In order to make the solution of the present invention clearer, the present invention will be further described in detail below in conjunction with examples.

[0022] The present invention provides a system for precisely controlling uplink and downlink switching by a repeater, as shown in Figure 2, which includes: a control center, a communication link and a repeater, and a calculation and control module and a satellite positioning receiver are arranged in the repeater , repeater radio frequency link, the control center transmits the base station location information and the time information of the two conversion points to the repeater through the communication link; the satellite positioning receiver transmits the obtained repeater location information and standard time to the computer and the control module; the calculation and control module calculates the radio wave transmission time delay and the positions of the two switching points of the repeater, and controls th...

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Abstract

This invention relates to time simultaneous code address direct state to realize the upper and down row switching method, which comprises the following steps: control center getting the base state position information and two switching time information through wireless network controller or base state; then sending the information to the computing and control module through communication linkage; compute and control module using satellite positioning receiver to get the direct state position information and standard time to get the wireless wave transmission delay and then to compute the accurate state conversion time spot and to generate control signals to control the switching of the linkage.

Description

technical field [0001] The invention relates to a method and a system for a time-division synchronous code division multiple access TD-SCDMA repeater to realize uplink and downlink switching. Background technique [0002] TD-SCDMA is one of the third-generation mobile communication air interface technical specifications officially released by the International Telecommunication Union ITU. Its key technologies include time-division duplex technology with adjustable uplink and downlink switching points, smart antenna technology, and joint detection technology. The advantages of TD-SCDMA are highlighted in the good balance between system anti-interference and system capacity, efficient support for mixed services, and the system itself has good sustainable development and technological evolution. [0003] The multiple access scheme of TD-SCDMA belongs to DS-SCDMA, the chip rate is 1.28Mc / s, the spread spectrum bandwidth is about 1.6MHz, and it adopts the TDD working mode without...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B17/02H04B17/40
Inventor 郭见兵吴双元方小兵
Owner WUHAN HONGXIN TELECOMM TECH CO LTD
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