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

A code division multiple access, time division synchronization technology, applied in transmission monitoring, electrical components, transmission systems, etc., can solve the problem of high technical complexity

Active Publication Date: 2005-11-30
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 for implementing uplink and downlink switching of TD-SCDMA repeater
  • Method for implementing uplink and downlink switching of TD-SCDMA repeater

Examples

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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 repeater to realize precise control of uplink and downlink switching system such as figure 2 As shown, it includes: a control center, a communication link and a repeater. The repeater is equipped with a calculation and control module, a satellite positioning receiver, and a radio frequency link of the repeater. The control center combines the position information of the base station with two switching points The time information is transmitted to the repeater through the communication link; the satellite positioning receiver transmits the acquired position information and standard time of the repeater to the calculation and control module; the calculation and control module calculates the radio wave transmission delay and the repeater Switch the positions of the two switch...

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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 for realizing uplink and downlink switching of a time division synchronous code division multiple access TD-SCDMA repeater. 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...

Claims

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Application Information

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