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Method, system and equipment for conducting switching

A post-handover and pre-handover technology, applied in the direction of electrical components, wireless communication, etc., can solve the problems of increased switching frequency and times, increased UE communication, interruption, etc., and achieve the effect of reducing the risk of communication interruption

Active Publication Date: 2014-01-15
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The embodiments of the present invention provide a handover method, system, and equipment to solve the problem that in the existing E-UTRAN network architecture in the prior art, since the handover frequency and times of the UE are greatly increased, the number of handovers of the UE is increased. The problem with the risk of communication loss when switching

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  • Method, system and equipment for conducting switching
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  • Method, system and equipment for conducting switching

Examples

Experimental program
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Effect test

example 1

[0251] Example 1. When the user moves from the coverage of the macro eNB to the coverage of the local eNB, the network needs to replace the user plane transmission node with the Local eNB.

[0252] Such as Figure 17 As shown, the method for switching all control plane bearers from the macro cell to the local cell in the embodiment of the present invention includes the following steps:

[0253] 1. The Macro eNB performs measurement configuration on the UE, and the UE subsequently performs measurement according to the received measurement configuration information;

[0254] 2. On the uplink resource allocated by the Macro eNB to the UE, the UE reports the measurement result. The measurement result will be used to assist the Macro eNB in ​​handover decision;

[0255] 3. The Macro eNB makes a measurement decision. If the Macro eNB decides to perform handover, proceed to the subsequent steps;

[0256] 4. The Macro eNB sends a user plane handover request to the Local eNB, carry...

example 2

[0295] Example 2: When the user moves from the coverage area of ​​the macro eNB to the coverage area of ​​the local eNB, the network may switch part of bearers of the user plane to the local eNB. The separation of the user plane part and the control plane part means that part of the UE's user plane bearer is connected to the same eNB as the control plane, and the rest of the user plane part is bearer in other eNBs. The reason why the part of the user plane is separated from the control plane may be that, according to the handover algorithm, the Macro eNB only wants to switch the bearer part of the UE to other eNBs; or the local eNB that is handed over cannot accept all the user plane bearers that the Macro eNB wants to switch over; Or a combination of both.

[0296] Among them, Example 2 has the following differences compared with Example 1:

[0297] In step 4, what the Macro eNB sends to the Local eNB is not to switch all the E-RAB bearer information of the UE: that is, the ...

example 3

[0302] Example 3: When the user moves out of the coverage of the Local eNB, the network needs to replace the user plane transmission node with the Macro eNB.

[0303] Such as Figure 18 As shown, the method for switching from a local cell to a macro cell in the embodiment of the present invention includes the following steps:

[0304] in execution Figure 18 Before the process, UE maintains connection with Macro eNB and Local eNB at the same time, its control plane connection is located in Macro eNB, and all or part of the bearer of user plane is located in Local eNB.

[0305] 1. The Macro eNB performs measurement configuration on the UE, and the UE subsequently performs measurement according to the received measurement configuration information;

[0306] 2. On the uplink resource allocated by the Macro eNB to the UE, the UE reports the measurement result. The measurement result will be used to assist the Macro eNB in ​​handover decision;

[0307] 3. The Macro eNB makes a ...

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Abstract

The embodiment of the invention relates to the technical field of wireless communication, in particular to a method, system and equipment for conducting switching. The method, system and equipment for conducting switching aim to solve the problem that in the E-UTRAN network architecture in the prior art, due to the fact that the switching frequency of UE and the number of times of switching of the UE are both increased greatly, the risk of communication outage which occurs during switching of the UE is increased. The method for conducting switching comprises the steps that the UE receives a notice indicating that switching is needed from a macro base station, and the UE keeps a control plane on the macro base station and switches part or all of loads of a user plane onto at least one base station. The method, system and equipment for conducting switching have the advantages that the number of times of switching of the control plane by the UE is reduced, and therefore the risk of communication outage which occurs during switching of the UE is reduced under the condition that the switching frequency of the UE and the number of times of switching of the UE in the E-UTRAN network architecture are increased.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a method, system and equipment for switching. Background technique [0002] Such as figure 1 As shown in the schematic diagram of the network architecture of E-UTRAN (Evolved Universal Terrestrial Radio Access Network, Evolved Universal Terrestrial Radio Access Network), E-UTRAN is composed of eNB (evolved base station). [0003] The MME (Mobility Management Entity, Mobility Management Entity) is connected to the eNB through the S1-MME interface; the eNB completes the access network function and communicates with the UE (User Equipment) through the air interface. For each UE attached to the network, there is an MME providing services for it, and the MME is called the serving MME of the UE. The S1-MME interface provides UE with control plane services, including mobility management and bearer management functions. [0004] The S-GW (Serving GW, serving gat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W36/08H04W88/02H04W88/08
CPCH04W36/04
Inventor 鲍炜张大钧梁靖杨义
Owner DATANG MOBILE COMM EQUIP CO LTD
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