Data transmission method and data transmission system
A data transmission method and data information technology, applied in diversity/multi-antenna systems, location diversity, network planning, etc., can solve problems such as limited system capacity improvement, reduce inter-cell interference, increase data rate, and break backhaul The effect of the limitation of ability
Active Publication Date: 2012-04-11
HUAWEI TECH CO LTD
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Problems solved by technology
[0005] Embodiments of the present invention provide a data transmission method and system, which are used to solve the defect of limited system capacity improvement caused by the inability to implement real-time joint processing between base stations in the prior art, and realize resource sharing between macro base stations and micro base stations. Joint scheduling to reduce inter-cell interference and maximize overall data rate
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[0017] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0018] This embodiment provides a data transmission method, which can specifically adopt the system architecture of a virtual multi-layer cell structure (Virtual HetNet; hereinafter referred to as: V-HetNet), figure 1 It is a schematic diagram of the system structure of V-HetNet in Embodiment 1 of the data transmission method of the present invent...
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The invention provides a data transmission method and a data transmission system, wherein the method can be applied to a system framework adopting a multilayer virtual cell structure, and a macro base station covering a macro cell and a micro base station covering a micro cell share the same site address; the method comprises the steps of: sending control information and data information to user terminals of the macro cell and the micro cell according to the position information of the user terminals, and leading the user terminals to acquire the data information according to the control information. The system comprises a transmission module. By using the data transmission method and system provided by the invention, the joint scheduling for resources between the macro base station and the micro base station is realized, so that the inter-cell interference can be reduced, and the overall data rate is improved to the utmost extent.
Description
technical field [0001] The embodiments of the present invention relate to communication technologies, and in particular to a data transmission method and system. Background technique [0002] With the development of wireless communication technology and the popularization of mobile phones, base station equipment can be seen everywhere in urban and rural areas. According to the distance between base stations, it can be roughly divided into macro base stations and micro base stations. Among them, the area covered by macro base stations is called macro cell ( Macro-cell), the area covered by the micro base station is called a micro cell (Pico-cell). In order to ensure continuous coverage, adjacent base stations can cover the cell edge of adjacent cells at the same time, then there is equal power interference from adjacent base stations at the cell edge of adjacent cells, and the call effect and data rate of user terminals in this area will be reduced. affected. The more tradi...
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IPC IPC(8): H04W16/14H04W16/32H04W72/12H04W72/54
CPCH04W84/047H04W72/048H04W16/32H04W72/082H04W84/045H04B7/024H04W72/1226H04W72/1289H04W72/54H04W72/23
Inventor 杜颖钢刘晟王锐
Owner HUAWEI TECH CO LTD