Method and apparatus for realizing isolation in hierarchical network
A layered network and carrier configuration technology, applied in the direction of device selection, network traffic/resource management, electrical components, etc., can solve the problems of low utilization rate and high cost of carrier sector, and achieve the goal of improving network quality, coverage and switching Effect
Inactive Publication Date: 2009-11-04
HUAWEI TECH CO LTD
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[0006] The purpose of the present invention is to propose a method and device for realizing isolation in a layered network, which can solve the problem that the increased utilization rate of the carrier sector in the prior art solution is too high and the cost is too high
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[0033] The specific implementation manner of the present invention will be described below in conjunction with the accompanying drawings.
[0034] The technical solution of the present invention is still described by taking the example of a two-layer network formed by the interlacing of macrocells and microcells.
[0035] At present, 3G base stations are developing in the direction of multi-carrier transceivers, and more and more base stations use multi-carrier transceivers. A new carrier can be added without adding sectors in the base station, and no new hardware components are added, but if image 3 As shown, if only a carrier with channel f1 is added to the microcell with channel f2, even if the newly added carrier is consistent with the channel of the macrocell, because no isolation sector is formed, the isolation between the macrocell and the macrocell cannot be achieved. The purpose of microcellular.
[0036] In order to achieve the purpose of effectively isolating mac...
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The present invention relates to a method and device for realizing isolation in a layered network. In the method, two carriers are set in a microcell base station corresponding to a macrocell and a microcell interlaced area. The first carrier f1 uses a macrocell channel, and the second carrier f2 uses a microcell channel. Cellular channel; configure different transmission powers for the first carrier f1 and the second carrier f2; divide the transmission signal of the microcell base station into two signals, the first signal is sent to the microcell sector, and the second After frequency selection, the transmission power of the second carrier f2 is suppressed to be lower than the transmission power of the first carrier f1, and the second signal is sent to the interlaced area of macro cells and micro cells to form isolation sector. The invention also discloses a device for realizing isolation in a layered network. The present invention obtains the effects of improving coverage and switching and isolating coverage areas through external frequency selection processing components without adding hardware to the multi-carrier micro-cell base station, and improves the network quality of the layered network switching area.
Description
technical field [0001] The invention relates to the technical field of mobile communication, in particular to a method and device for realizing isolation in a layered network. Background technique [0002] In the cellular communication system of the CDMA system, a network solution to solve network coverage and capacity is to adopt layered network technology. Introduce micro cells into the hierarchical network, set macro cells and micro cells into different levels, and use specific cell reselection and handover algorithms to assign users in idle or connected mode to macro cell layer or micro cell layer. Layers use different carriers. [0003] However, when the layered network does not have sufficient isolation, it is easy to cause frequent inter-frequency switching of users, resulting in a decrease in network quality. For example, a very typical scenario mentioned below, such as figure 1 As shown, the micro-cell coverage is used in a commercial building, using the f2 chann...
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IPC IPC(8): H04Q7/36H04W28/16H04W36/00
Inventor 李挺钊
Owner HUAWEI TECH CO LTD