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Methods implemented in access nodes for maintaining synchronization in radio access network and associated access nodes

A technology for radio access and access nodes, applied in the direction of synchronization devices, wireless communications, electrical components, etc., to achieve the effect of avoiding direct synchronization conflicts

Active Publication Date: 2017-08-18
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, a Level 2AN that can receive synchronization signals from both Level 1ANs may be confused by inconsistent synchronization signals broadcast by both Level 1ANs
Therefore, an indirect synchronization conflict occurs between rank 1AN

Method used

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  • Methods implemented in access nodes for maintaining synchronization in radio access network and associated access nodes
  • Methods implemented in access nodes for maintaining synchronization in radio access network and associated access nodes
  • Methods implemented in access nodes for maintaining synchronization in radio access network and associated access nodes

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Embodiment Construction

[0037] In the following description, for purposes of illustration and not limitation, specific details of particular embodiments of the technology are set forth. It will be understood by those skilled in the art that other embodiments may be employed without these specific details. Furthermore, in some instances, detailed descriptions of well-known methods, nodes, interfaces, circuits and devices are omitted so as not to obscure the description with unnecessary detail.

[0038] Functions that will be clearly described by those skilled in the art may be implemented in one or several nodes. Some or all of the described functions may be implemented using hardware circuitry, such as analog and / or discrete logic gates, ASICs, PLAs, etc. interconnected to perform the dedicated functions. Likewise, some or all of the functions may be implemented using software programs and data in conjunction with one or more digital microprocessors or general purpose computers. Where nodes are des...

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Abstract

The present disclosure provides methods implemented in ANs for maintaining synchronization in a radio access network employing a hierarchical synchronization mechanism. One of the methods is implemented in an AN at synchronization level 1 and comprises detecting that an AN at synchronization level 0 is down and initiating a random back-off procedure. The method further comprises determining whether a first synchronization signal generated at another AN at synchronization level 1 is received during the random back-off procedure. If it is determined that no first synchronization signal is received during the random back-off procedure, a second synchronization signal providing a synchronization reference is generated and broadcast upon completion of the random back-off procedure. The present disclosure also provides ANs for maintaining synchronization in a radio access network employing a hierarchical synchronization mechanism.

Description

technical field [0001] The present disclosure relates generally to the technical field of wireless communications, and in particular to methods and ANs implemented in Access Nodes (ANs) for maintaining synchronization in radio access networks employing hierarchical synchronization mechanisms. Background technique [0002] This section is intended to provide a background to various embodiments of the techniques described in this disclosure. The description in this section may include claimable concepts, but not necessarily concepts that have been previously conceived or claimed. Therefore, unless otherwise indicated herein, what is described in this section is not prior art to the description and / or claims in the present disclosure and is not admitted to be prior art by inclusion in this section only. [0003] The ultimate goal of mobile broadband should be ubiquitous and sustainably deliver unlimited data rates to anyone and anything at any time. To achieve this goal, Ultr...

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Application Information

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IPC IPC(8): H04J3/06
CPCH04W4/06H04W56/0015H04W56/002H04L43/0817H04W74/085
Inventor 卢前溪缪庆育
Owner TELEFON AB LM ERICSSON (PUBL)
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