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Processing method and device for cell handover

A cell handover and processing method technology, applied in the field of communication, can solve the problems that the base station does not have the necessary information for cell reconstruction and the reconstruction fails, and achieves the effects of improving the reconstruction success rate, good mobility performance, and ensuring mobility performance.

Inactive Publication Date: 2016-12-07
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, although the re-selected potential re-establishment cell after the handover failure exists in the above-mentioned additional re-establishment information list, since it does not belong to the same base station as the target cell, the re-selected potential re-establishment cell corresponds to The base station does not have the necessary information for cell re-establishment, so the re-establishment must fail

Method used

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  • Processing method and device for cell handover
  • Processing method and device for cell handover
  • Processing method and device for cell handover

Examples

Experimental program
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Effect test

Embodiment 1

[0051] When handover is performed in a network where RN is deployed, the source base station (referring to a common eNB or RN) selects a target cell and one or more potential reestablishment cells based on the UE's measurement report. Because the eNB IDs of the RN and the DeNB are the same, no matter whether the target cell is actually a DeNB cell or an RN cell, in the view of the source base station, the selected cells belong to the target DeNB. The source base station includes the information of these cells in the handover request message and sends it to the target DeNB. When the target cell is the DeNB cell, the DeNB receives the handover request message and learns the additional re-establishment information list from it. If there are RN cells (RNs under the target DeNB), the DeNB forwards the re-establishment necessary information related to these RN cells to the respective cells. The corresponding RN (if there is a cell belonging to the DeNB in ​​the additional re-establi...

Embodiment 2

[0060] When handover is performed in a network where RN is deployed, the source base station (referring to a common eNB or RN) selects a target cell and one or more potential reestablishment cells based on the UE's measurement report. Because the eNB IDs of the RN and the DeNB are the same, no matter whether the target cell is actually a DeNB cell or an RN cell, in the view of the source base station, the selected cells belong to the target DeNB. The source base station includes the information of these cells in the handover request message and sends it to the target DeNB. When the target cell is the DeNB cell, the DeNB receives the handover request message and learns the additional re-establishment information list from it. If there are RN cells (RNs under the target DeNB), the DeNB forwards the re-establishment necessary information related to these RN cells to the respective cells. The corresponding RN (if there is a cell belonging to the DeNB in ​​the additional re-establi...

Embodiment 3

[0068] When handover is performed in a network where RN is deployed, the source base station (referring to a common eNB or RN) selects a target cell and one or more potential reestablishment cells based on the UE's measurement report. Because the eNB IDs of the RN and the DeNB are the same, no matter whether the target cell is actually a DeNB cell or an RN cell, in the view of the source base station, the selected cells belong to the DeNB. That is to say, even if the target cell is an RN cell, the source base station will only consider the cell as a DeNB, that is, still include the information of these cells in the handover request message and send it to the target DeNB.

[0069] In this case, after receiving the handover request message, the DeNB can obtain the list of target cells and additional re-establishment information, and forward the handover request message and information necessary for re-establishment to the RN corresponding to the cell according to the information ...

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Abstract

The present invention discloses a cell handover processing method and device. The method includes: a base station receives a handover request message; acquires an additional reconstruction information list in the handover request message; determines that the additional reconstruction information list includes a cell that does not belong to itself; The information necessary for reestablishment of the cell is sent to the base station to which the cell belongs. The present invention can improve the reconstruction success rate in the network deployed with RN and ensure its good mobility performance.

Description

technical field [0001] The present invention relates to the communication field, in particular, to a cell handover processing method and device. Background technique [0002] In order to meet the increasing demand for large bandwidth and high-speed mobile access, the Third Generation Partnership Projects (Third Generation Partnership Projects, 3GPP for short) launched the Long-Term Evolution advanced (LTE-Advanced for short) standard. LTE-Advanced retains the core of LTE for the evolution of Long-Term Evolution (LTE for short), and uses a series of technologies to expand the frequency domain and air domain on this basis to improve spectrum utilization and increase system capacity. capacity etc. [0003] Wireless relay (Wireless Relay) technology is one of the technologies in LTE-Advanced. ) transmit power. [0004] figure 1 It is a schematic diagram of a network structure using wireless relay technology according to related technologies, such as figure 1 As shown, a rel...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W36/08
CPCH04W76/19H04W36/08H04W48/16H04W84/047
Inventor 王昕陈思
Owner ZTE CORP
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