Method for selecting candidate cell for terminal in multi-cell coverage and network element
A candidate cell, multi-cell technology, applied in electrical components, wireless communication, etc., to reduce the rate of dropped calls, reduce the number of handovers, and improve the possibility of
Inactive Publication Date: 2014-03-19
ZTE CORP
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Problems solved by technology
[0004] The technical problem to be solved by the present invention is to provide a method and network element for selecting a candidate cell for a terminal under multi-cell coverage, so as to solve the problem that a terminal located in a multi-cell coverage area in the prior art may need to go through multiple handovers to finally Handover to desired target cell issues
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[0026] Such as figure 2 As shown, the basic concept of the method of the present invention is: in the cell handover decision network element, configure the restriction relationship of its adjacent intervals for the cell managed by the network element, and configure a restriction handover for each pair of restriction relations between adjacent intervals. Threshold value; in the configuration process, one restricted neighbor cell can be configured for a cell, and multiple restricted neighbor cells can also be configured for a cell, and the number can be determined according to the site environment. For example, the current serving cell A has three neighboring cells, which are cell B, cell C and cell D respectively. According to the actual situation, cell B can be configured to be restricted by cell C and cell D respectively, and the restriction switching threshold configured for the restriction relationship of cell B being restricted by cell C is X, and for cell B being restric...
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A method for selecting candidate cells for a terminal covered by multiple cells is disclosed in the present invention. The method includes the following steps of: in a cell handoff judgment network element, configuring limitation relations between adjacent cells of a cell which is managed by the network element; after receiving a measure report sent by the terminal located in the cell, if the cell handoff judgment network element judges that the terminal satisfies a handoff condition, then respectively judging each adjacent cell which is included in the measure report; and if it is judged that an adjacent cell is not limited by other adjacent cells according to the limitation relations, then selecting the adjacent cell as a candidate cell for this handoff. The cell handoff judgment network element for selecting candidate cells for a terminal covered by multiple cells is also disclosed in the present invention. The present invention can greatly improve the probability for selecting the most expectable candidate cell for handoff as the target cell of this handoff.
Description
technical field [0001] The present invention relates to a mobile communication network, in particular to a method and a network element for selecting a candidate cell for a terminal covered by multiple cells. Background technique [0002] According to a normal cell planning method, a certain area should be covered by at most two cells, that is, there should be no signals from other cells except the above two cells in this area. However, in a relatively complex environment, for some reason, signals of other cells may leak into this area, making this cell an area covered by multiple cells. Such as figure 1 As shown, the five communities A, B, C, D, and E are adjacent to each other. The horizontal road should only be covered by the contiguous areas of A and B, but for some reason the signals of C, D, and E are also blocked. spilled onto the highway. At this time, when a high-speed moving vehicle enters the area covered by these cells, the terminal in the vehicle may switch f...
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IPC IPC(8): H04W24/10H04W36/08H04W36/30
CPCH04W36/0061
Inventor 寇毅陈祥榴常立喆
Owner ZTE CORP