TDD base station synchronization method based on external reference clock and subframe synchronization signal

A sub-frame synchronization and external reference technology, applied in the direction of synchronization devices, wireless communications, electrical components, etc., can solve the problems that adjacent base stations are difficult to obtain air interface synchronization, and the coverage radius of base stations is reduced, so as to ensure the success rate of handover and reselection, The effect of reducing the number of base stations and reducing the cost of network deployment

Active Publication Date: 2016-06-29
苏州智铸通信科技股份有限公司
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a TDD base station synchronization method based on an external reference clock and a subframe synchronization signal, which solves the difficulty in obtaining air interface synchronization of adjacent base stations in the prior art, and the coverage of the base station in the prior art to meet handover and reselection Radius reduction etc.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • TDD base station synchronization method based on external reference clock and subframe synchronization signal
  • TDD base station synchronization method based on external reference clock and subframe synchronization signal
  • TDD base station synchronization method based on external reference clock and subframe synchronization signal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0026] The following only takes the TD-SCDMA system as an example to illustrate the working principle and flow of the system. Its principles and processes are also applicable to TDD-LTE system and other similar TDD (Time Division Multiple Access) systems. The base station synchronization method based on an external high-precision reference clock and a subframe synchronization signal is specifically performed in the following steps:

[0027] A high-precision clock signal is generated and sent by an external high-precision reference clock generator (for example: 26MHz clock). On the one hand, the high-precision clock is transmitted to all base stations (such as image 3 and Figure 4 ); on the other hand, the high-precision clock signal is also sent to the subframe synchronization signal generator for producing subframe synchronization signals (such as Figure 5 ); the high-precision reference clock and subframe synchronization signal are transmitted to all base stations in th...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a time division duplex (TDD) base station synchronization method based on external reference clock and subframe synchronizing signals. Through incoming of external reference high-precision reference clock and subframe synchronizing signals, all the base stations in a system obtain precise clock and subframe synchronization, therefore covering radiuses of all the base stations are widened, the number of base stations needed in the same coverage area is reduced, network coverage cost is greatly reduced, and meanwhile success rates of switching and reselection of the system are guaranteed.

Description

technical field [0001] The invention belongs to the technical field of 3G base station air interface synchronization, and in particular relates to a TDD base station synchronization method based on an external reference clock and a subframe synchronization signal. Background technique [0002] Indoor base station, or home base station (the Chinese term for English Femtocell), is an important technical solution to solve indoor coverage problems. By deploying indoor base stations, operators can solve the indoor coverage problem of the network, increase network capacity and coverage, and greatly reduce costs; and indoor base stations are also an effective means to realize the integration of fixed and mobile networks, which will create more new business models , Enhance user stickiness and reduce user loss. Due to the many advantages of indoor base stations, it has become the new darling of operators. [0003] With the development of technology and market, the application rang...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): H04W56/00
Inventor 蒲锦先
Owner 苏州智铸通信科技股份有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap