Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Air interface synchronizing method, base station and control device thereof, and wireless communication system

A technology of air interface synchronization and base station, which is applied in the direction of synchronization devices, wireless communications, electrical components, etc., can solve the problems of high maintenance cost and high construction cost, and achieve the effect of reducing construction and maintenance costs

Active Publication Date: 2014-05-14
HUAWEI TECH CO LTD
View PDF5 Cites 19 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The implementation of the present invention provides a processing method, device and wireless communication system for realizing time synchronization of air interfaces between base stations, so as to solve the problems of high construction cost and high maintenance cost existing in the time synchronization between base stations using GPS

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
  • Air interface synchronizing method, base station and control device thereof, and wireless communication system
  • Air interface synchronizing method, base station and control device thereof, and wireless communication system
  • Air interface synchronizing method, base station and control device thereof, and wireless communication system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0079] image 3 It is the processing method of the centralized controller in the air interface synchronization solution provided by the embodiment of the present invention, which is described in detail as follows.

[0080] The centralized controller obtains at least one first type time difference and determines whether the at least one first type time difference is accurate, and if the obtained at least one first type time difference is not accurate, then obtains at least one second type time difference and judges whether the obtained time difference is accurate If the obtained time difference is accurate, then according to the obtained time difference and the reference time of the reference base station, obtain the time adjustment amount of the non-reference base station and send the time adjustment amount to the non-reference base station. The obtained time difference includes at least one first type time difference and At least one second type of time difference.

[0081] S301. ...

Embodiment 2

[0131] in figure 1 In the wireless communication system shown, by default, the non-competitive random access of UE handover between base stations is used (inter-station handover method to obtain the time difference), and the centralized controller obtains the first type of time difference between the base stations. When the time difference does not meet the requirements, the centralized controller will actively send a time difference request message to the first base station or the second base station, and use the first base station or the second base station to select the UE to initiate active random access (active control method to obtain the time difference), and further obtain the base station The second type of time difference between.

[0132] Image 6 It is a method for acquiring a time difference using an inter-station switching method provided by an embodiment of the present invention, and is described as follows.

[0133] S601: The first base station selects the second ba...

Embodiment 3

[0230] See figure 1 The centralized controller 101 is independent of the base station, and takes the base station 102a as the reference base station, and the time synchronization process of the base station 102b with the reference base station through the air interface is described in detail as follows.

[0231] When there is a UE 103a handing over from the base station 102a to the base station 102b, the process of obtaining the first type of time difference between the base stations is the same as in Embodiment 2. The base station 102a is the first base station, the base station 102b is the second base station, and the base station 102a obtains the first time difference and reports it to In the centralized controller 101, the first time difference belongs to the first type of time difference.

[0232] When there is a UE 103b handing over from the base station 102b to the base station 102a, the process of obtaining the first type of time difference between the base stations is the s...

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 an air interface synchronizing method, a base station and a control device thereof, and a wireless communication system. A second-type time difference between base stations is further obtained by using active random access of user equipment if a system requirement cannot be satisfied by obtaining a first-type time difference with signalling interaction and using a non-competitive random access process of the user equipment switched between the base stations. According to the obtained time difference and reference time of a reference base station, the time adjustment amount of a non-reference base station is obtained in order that the non-reference base station performs time adjustment according to the time adjustment amount, and achieve time synchronization between the non-reference base station and the reference base station. The air interface synchronizing method does not need expensive synchronizing equipment, reduces construction and maintenace cost, and achieves economical and conventient technical effects.

Description

Technical field [0001] The invention relates to the field of wireless communication, in particular to an air interface synchronization method, a base station, a control device and a wireless communication system. Background technique [0002] With the increasing demand for wireless network capacity, in order to obtain higher network capacity, the deployment of sites is more intensive. For the Long Term Evolution (LTE) system, whether it is a homogeneous network (Homogenous Network, HomNet) or a heterogeneous network (Heterogeneous Network, HomNet), due to denser site deployment, inter-cell interference is more serious, and cell boundaries are User throughput declines, which affects the normal work of edge users in severe cases. Staggering edge user resources can solve the problem of inter-cell interference. The existing method is to adopt inter-cell time-domain interference coordination, and realize inter-cell interference staggered by coordinating the use of subframes between ...

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 Applications(China)
IPC IPC(8): H04W56/00
CPCH04W56/0015
Inventor 胡军
Owner HUAWEI TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com