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Method and apparatus for cell switching

A cell handover and target cell technology, applied in the field of communications, can solve the problems of insufficient cell resources, inability to take action, and inability to accurately know the reason for handover failure.

Active Publication Date: 2012-02-29
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, since the reason of "insufficient cell resources" has a relatively wide meaning, the source eNodeB (E-UTRAN NodeB, base station) cannot accurately know the reason for the handover failure after obtaining the value of this reason, and cannot take correct actions

Method used

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  • Method and apparatus for cell switching
  • Method and apparatus for cell switching
  • Method and apparatus for cell switching

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] see figure 1 , an embodiment of the present invention provides a schematic flowchart of a cell handover method. When the method sends a handover request to the target system where the target cell is located, when the rate required by the UE service is greater than the rate of the service supported by the target cell, the receiving The rate of the service type supported by the target cell returned by the target system, when sending a handover request to the target system where the target cell is located later, if the rate required by the current UE service to be handed over is greater than the service supported by the hardware of the target cell When the rate is higher, the service of the UE currently to be switched is not switched to the target cell, and the cell to be switched is reselected for the UE.

[0031] The method includes:

[0032] 101: If the first user equipment needs to perform cell handover, send a handover request to the target system where the target ce...

Embodiment 2

[0043] figure 2 For a schematic flowchart of a method for cell handover provided in Embodiment 2 of the present invention, refer to figure 2 ,include:

[0044] 201: The first user equipment reports a measurement report to the base station.

[0045] Exemplarily, the first user equipment reports the measurement report to the eNodeB of the LTE system.

[0046] 202: The base station sends a handover request to an MME (Mobility Management ENTity, mobility management equipment) when determining that the first user equipment needs to be handed over according to the measurement report.

[0047] 203: The MME sends the handover request to the target system where the target cell is located.

[0048] For example, the target system may be a WCDMA system other than the LTE system.

[0049] 204: When the target system performs handover according to the handover request, if the GBR of the service of the first user equipment to be handed over is greater than the GBR of the service suppor...

Embodiment 3

[0058] see image 3 , an embodiment of the present invention provides a cell handover method, the method comprising:

[0059] 301: Receive a cell handover request sent by a source system where the source cell is located to perform cell handover for the first user equipment.

[0060] Exemplarily, if the source system is an LTE system, the first user equipment in the LTE system needs to perform cell handover, and the WCDMA system of the target system receives a handover request sent by the LTE system, and the handover request indicates that the first user equipment needs to switch to the HSPA+ cell in the WCDMA system switch.

[0061] 302: If the rate required by the first service of the first user equipment is greater than the rate of the first service supported by the target cell, send the rate of the service type supported by the target cell to the source system.

[0062] Exemplarily, the rate of the service type supported by the target cell may be the rate of the service t...

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Abstract

The embodiment of the invention discloses method and apparatus for cell switching that belongs to communication field. The method includes: if a first user needs to switch cell, then sends switching request to the target cell located target system; if a first profession needed speed of the first user device is larger than the first profession speed of the target cell supported, then receiving thetarget system returned profession type speed of the target cell supported. The embodiment of the invention provided technical scheme can assure the UE switched to a condition satisfied cell timely.

Description

technical field [0001] The present invention relates to the field of communications, in particular to a cell switching method and device. Background technique [0002] LTE system (Long Term Evolution, Long Term Evolution) is the evolution of 3G system. It improves and enhances 3G air access technology, improves the performance of cell edge users, increases cell capacity and reduces system delay, and provides more wireless communication in the future. High transmission rate, smaller transmission delay, greater system capacity and coverage. The LTE system can support very high-speed service types, so the GBR (Guarantee Bit Rate, guaranteed rate) that can support services is generally relatively large. However, the current GSM (Global System for Mobile Communications, Global System for Mobile Communications) or WCDMA (Wideband Code Division Multiple Address, Wideband Code Division Multiple Access) and other systems' cell hardware can support a limited rate. Can not support. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W36/14H04W36/26
Inventor 汤晓伟
Owner HUAWEI TECH CO LTD