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Method and apparatus for handover

A switching point and switching preparation technology, applied in electrical components, wireless communication, network topology, etc., can solve problems such as low latency, reduce switching time, minimize the consumption of network resources, and improve the probability of successful switching

Inactive Publication Date: 2014-05-14
NEC (CHINA) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is a technical gap regarding radio access technologies capable of delivering high transmission data rates with low latency to support real-time applications in high-speed mobility environments

Method used

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  • Method and apparatus for handover
  • Method and apparatus for handover
  • Method and apparatus for handover

Examples

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Embodiment Construction

[0044] The spirit of the principles of the invention will now be described with reference to illustrative embodiments. It should be understood that all these embodiments are given only for those skilled in the art to better understand and further practice the present invention, rather than to limit the scope of the present invention. For example, features illustrated or described as part of one embodiment can be used with another embodiment to yield yet another embodiment. In the interest of clarity, not all features of an actual implementation are described in this specification. It will of course be appreciated that in the development of any such actual embodiment, a number of implementation-specific decisions should be made to achieve the developer's specific goals, such as compliance with system-related and business-related constraints, which will vary from implementation to implementation . Moreover, it will be appreciated that such a development effort might be complex...

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Abstract

A fast handover method is provided. At a source eNB, the method may include: receiving a measurement report sent periodically from a mobile node, wherein the sending of the measurement report is triggered no later than the mobile node arriving at a reference triggering point (RTP), and the measurement report comprises location and velocity information of the mobile node besides the conventional measurement information; performing handover preparation; and executing handover to a target eNB no later than the mobile node arriving at a reference handover point (RHP), With particular embodiments, the measurement results may be reported in time by defining an RTP and the handover may be executed timely by defining an RHP. Moreover, by defining an HTT, the handover preparation including data bi-casting may be started not too early, such that the consumption of network resources may be minimized. Accordingly, the handover time may be reduced and the handover success probability may be increased.

Description

technical field [0001] Embodiments of the present invention generally relate to handover procedures in communication systems, and more particularly to methods, systems, apparatuses, eNodeBs, mobile nodes and computer programs for fast handover in high-speed mobile environments. Background technique [0002] This subsection introduces a number of aspects that can help promote a better understanding of the invention. Therefore, the records in this subsection should be read from this perspective and should not be understood as acknowledging what is prior art and what is not. [0003] Abbreviations and terms appearing in the specification and drawings are defined below. [0004] 3GPP Third Generation Partnership Project [0005] DL downlink [0006] eNB eNodeB, base station in EUTRAN [0007] E-UTRAN Evolved UTRAN [0008] HTT Switch Time Threshold [0009] IE cell [0010] LTE-A Advanced Long Term Evolution [0011] QoS Quality of Service [0012] RN relay node [001...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W36/32
CPCH04W36/023H04W84/047H04W36/0058H04W36/0009H04W36/322
Inventor 易粟雷鸣黄清周建美
Owner NEC (CHINA) CO LTD
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