Cell switching control method, cell switching method, device and system
A cell handover and control method technology, applied in the direction of electrical components, wireless communication, etc., can solve the problems of handover, unreasonable measurement and control parameter settings, etc., to achieve the effect of expanding the selection range, optimizing cell handover, and reducing handover conditions
Active Publication Date: 2016-08-31
HUAWEI TECH CO LTD
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Problems solved by technology
[0004] In the process of implementing the embodiment of the present invention, the inventor found that in the prior art, due to the unreasonable setting of the measurement control parameters of the same-frequency handover conditions, some same-frequency cells that can actually provide wireless services for mobile terminals were not moved. The terminal reports to the network side, so the network side does not include it in the selection range of handover, resulting in unnecessary handover
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[0030] The characteristic of the microcellular network is to enable the mobile terminal to seamlessly switch from the original cell to the target cell, where the original cell and the target cell can be adjacent cells of the same frequency, of course, they can also be adjacent cells of different frequency / different systems. Such as figure 1 As shown, the mobile terminal moves to the edge of long term evolution (long term evolution; hereinafter referred to as: LTE) cell A, assuming that the handover condition in the system of cell A is that the same-frequency adjacent cell is 3 decibels (dB) higher than the current cell level, However, the mobile terminal has not been able to detect the same-frequency neighboring cells that meet the handover conditions; after the level drops to a certain threshold, in order to ensure the normal operation of the business, it is necessary to trigger inter-frequency / inter-system measurement, and the mobile terminal performs measurement according to...
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The embodiments of the present invention provide a cell handover control method, cell handover method, device and system. The method comprises the following steps: having received the message from a mobile terminal which indicates that the signal quality of the current cell can not fulfill a predefined requirements, sending a measurement control message to the mobile terminal including the measurement control parameter of the current cell's intra-frequency neighbor cell which is easier to fulfill the cell handover condition than the predefined measurement parameter; receiving the measurement report from the mobile terminal which is reported after cell measurement based on the measurement control message, and operating cell handover control on the mobile terminal based on the measurement report. The method distributing the measurement control parameter of the current cell's intra-frequency neighbor cell in advance in the embodiments of the present invention lowers the handover condition of the intra-frequency neighbor cell, makes more intra-frequency neighbor cells to be selection objects as a target cell, expands the selection for optimizing cell handover, and reduces unnecessary handover.
Description
technical field [0001] Embodiments of the present invention relate to wireless communication technologies, and in particular to a cell switching control method, cell switching method, device and system. Background technique [0002] A characteristic of the microcellular network is that it can seamlessly switch a mobile terminal from one cell to another. There are many types of cell switching, such as soft handover, softer handover, and hard handover. Cell handover is mostly carried out through the assistance of the mobile terminal, that is, the network side equipment selects a target cell for handover according to the measurement report reported by the mobile terminal. At present, due to service requirements and operator expansion requirements, the hybrid network deployment of multi-system and multi-band cells is becoming more and more common. How to ensure that mobile terminals can seamlessly switch between these cells has become an important research topic. [0003] Gener...
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IPC IPC(8): H04W36/00
CPCH04W36/30H04W36/0058
Inventor 季莉
Owner HUAWEI TECH CO LTD