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

Link switching method and device

A link switching and link technology, applied in the field of communications, can solve problems such as the inability to guarantee the uninterrupted operation of services, and achieve the effects of reducing the time to repair the network, shortening the development cycle, and improving sensitivity

Active Publication Date: 2017-12-26
ZTE CORP
View PDF3 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The main purpose of the present invention is to provide a link switching method and device to at least solve the problem in the prior art that the uninterrupted operation of services cannot be guaranteed when link switching occurs

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
  • Link switching method and device
  • Link switching method and device
  • Link switching method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] figure 1 It is a preferred flowchart of a link switching method according to an embodiment of the present invention, which includes the following steps:

[0031] S102, when the RRU ring network link is normal, the RRU in the RRU ring network receives the delay compensation value of the transmission link in two directions from the BBU;

[0032] S104, when the RRU ring network link is broken and switching is performed, the RRU switches the time delay compensation value of one direction used before the switching to the time delay compensation value of the other direction used after the switching.

[0033] In this preferred embodiment, the delay compensation value used for link switching is sent to the RRU before the link is disconnected, so that it does not need to spend time recalculating and recalculating the delay compensation value when link switching occurs. Instead, the time delay compensation value can be directly used for switching, which ensures the uninterrupted...

Embodiment 2

[0068] Figure 7 It is a preferred structural diagram of the link switching device according to the embodiment of the present invention, which is located on the RRU. The link switching device includes: a transmission unit 702, which is used to receive two transmissions from the BBU when the RRU ring network link is normal. The delay compensation value of the transmission link in the direction; the switching unit 704, connected to the transmission unit 702, is used to switch the delay compensation value of one direction used before the switching to the switching when the RRU ring network link is broken and the switching is performed The delay compensation value of the other direction used later.

[0069] In this preferred embodiment, the delay compensation value used for link switching is sent to the RRU before the link is disconnected, so that it does not need to spend time recalculating and recalculating the delay compensation value when link switching occurs. Instead, the t...

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

Provided are a link switchover method and an apparatus. The method comprises: when a RRU ring network link is normal, the RRU in an RRU ring network receives the time delay compensation values of transmission links in two directions from a BBU; when an RRU ring network link is broken and needs a switchover, the RRU switches the time delay compensation value in one direction used before the switchover to the delay compensation value in the other direction used after the switchover. The present invention solves the problem in the prior art that uninterrupted service operation cannot be ensured when link switchover occurs, thereby ensuring the uninterrupted operation of services.

Description

technical field [0001] The present invention relates to the communication field, in particular, to a link switching method and device. Background technique [0002] Stable network quality is the basic requirement for communication. The C-RAN (Clean Radio Access Network) architecture was introduced to ensure network quality, and the RRU ring network protection technology is exactly in the C-RAN architecture. key technologies. Under the RRU (Remote Radio Frequency Unit) ring network, the ring-forming optical port of the RRU adopts a dual-receiving and single-direction processing and a single-transmission mechanism, and the ring-forming optical port of the BBU (Base Band Unit, Base Band Unit) adopts a dual-transmitting mechanism. The dual-receipt mechanism ensures that when the ring network is disconnected, business data can be sent and received as usual through the switching of the active and standby optical ports of the BBU and RRU. At the same time, since there are transmi...

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): H04L12/437
CPCH04L12/437
Inventor 黄伟黄萍黄海
Owner ZTE CORP
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