Cooperative measurement and switching setting optimization method among multiple cells in mobile communication network
A mobile communication network and multi-cell technology, which is applied in the field of wireless link measurement and optimization of multi-cell handover settings, and can solve problems such as unreasonable mobile parameter settings, mobile communication system handover behavior problems, and measurement and reporting operations that cannot be completed. , to achieve the effect of performance and capacity improvement and mobile function optimization
Active Publication Date: 2011-04-20
北京万海云科技有限公司
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[0019] - The mobile terminal may experience RLF during this period of periodic measurement, resulting in the failure of the corresponding measurement and reporting operations to be completed
[0020] In summary, in the existing common mobile parameter setting optimization technology, due to the lack of means for multi-cell cooperation to obtain wireless measurement results, the mobile parameter setting may be unreasonable, which may lead to unnecessary problems in handover behavior in the mobile communication system
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[0089] The general mobile communication system network architecture includes three components: core network, radio access network and mobile terminal. A base station can control multiple cells, and there is usually a certain overlapping area in the coverage areas of adjacent cells. Adjacent cells may be same-frequency cells of the same radio access technology, may also be inter-frequency cells, or may be cells of different access technologies. The base station can control the mobile terminal to switch between cells belonging to the same or different base stations; the mobile terminal can communicate with one or more base stations within the coverage area of the cell or in the overlapping area of adjacent cells, and perform signal reception power on the downlink signal of the cell or a measure of mass.
[0090] A specific embodiment of the present invention will be described below by taking the LTE system as an example.
[0091] The wireless access network of the LTE syst...
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The invention provides a cooperative measurement and switching setting optimization method among multiple cells in a mobile communication network. The cooperative measurement and switching setting optimization method requires that the multiple cells positioned on a network side cooperatively control a mobile terminal to complete radio link measurement in specified cell coverage areas, and the specified cell coverage areas are target areas of the multiple cells trying to carry out intercell switching optimization. An intercell cooperative measurement mechanism enables a source cell starting the measurement to acquire a measuring result of the mobile terminal from other cells and assists the source cell to detect the necessity of switching and the reasonability of mobile parameter setting, and if the source cell discovers unnecessary switching exists among cooperative cells or the mobile parameter setting is unreasonable, the source cell can notify information to the cooperative cells so as to trigger the optimization process of the mobile parameter setting; and finally, the multiple cooperative cells can prevent unreasonable switching by modifying parameters, thereby achieving the optimization of the integral mobile function of the mobile communication network and realizing the enhancement of the property and the capacity of a mobile communication system.
Description
technical field [0001] The invention relates to the field of mobile communication, in particular to an optimization method for wireless link measurement and inter-multi-cell handover setting based on multi-cell cooperation. Background technique [0002] Broadband wireless communication systems, such as third-generation mobile communication (referred to as 3G), 3GPP Long-Term Evolution (hereinafter referred to as LTE) and fourth-generation mobile communication systems (referred to as 4G), are all based on multi-cell cellular networking way to provide seamless mobile communication services for mobile terminals. [0003] Inter-cell handover means that the mobile terminal completes the migration of the radio link connection between the source cell and the target cell under the control of the radio access network. Handover is a basic technical means for a mobile communication system to ensure seamless mobile communication services. However, a large amount of network resources a...
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IPC IPC(8): H04W24/02H04W28/16H04W36/08
Inventor 刘为纪子超江明
Owner 北京万海云科技有限公司
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