Communication method of relay network, network and base station
A technology of relay network and communication method, applied in the field of relay network, can solve problems such as low spectral efficiency, achieve the effect of flexible resource reuse and improve spectral efficiency
Active Publication Date: 2009-06-24
LENOVO (BEIJING) CO LTD
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[0005] The purpose of the embodiments of the present invention is to provide a communication method, network and base station in a relay network, so as to solve the technical problem of low spectrum efficiency in the prior art
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[0021] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0022] When multiple RSs are irregularly placed within the coverage of a BS to overcome the impact of shadow areas on user communications, in order to improve the spectrum efficiency of the system, the resource multiplexing between the BS and the RS in the embodiment of the present invention Follow these four rules:
[0023] a) There is an isolation zone (hereinafter also referred to as the second area) on the periphery of each RS (or RS cluster composed of multiple adjacent RSs) coverage area (hereinafter also referred to as the first area), and the isolation zone is determined It is enough to ensure that the interference from the RS received by users outside the isolation band is lower than a certain area threshold;
[0024]...
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The invention provides a communication method, network and base station in relay network, which belong to communication field. The method is applied to a system which comprises a first zone and a third zone; wherein, the first zone is communication zone covered by a relay station; spectrum resource used in the first zone is a first resource; the measured interference result of a mobile terminal relative to the relay station in the third zone is less than zone threshold; spectrum resource used in the third zone is a third resource; the method includes that a communication request from the mobile terminal is received; the communication zone of the mobile terminal is judged; when the communication zone is the first zone, the first resource or the third resource is adopted to provide communication service for the mobile terminal; when the communication zone is the third zone, the first resource or the third resource is adopted to provide communication service for the mobile terminal. The relay station in the invention can directly multiplex the spectrum resource in the third zone and greatly improve the spectrum efficiency of the system.
Description
technical field [0001] The present invention relates to relay network technology, in particular to a communication method, network and base station in a relay network Background technique [0002] In future broadband wireless systems, in order to increase the available bandwidth of the system, a higher carrier frequency is usually used. In an urban environment, the fast fading characteristics of high-frequency carriers lead to a smaller and smaller coverage area of a single-hop cellular network composed of a traditional BS (base station, base station) and mobile users, and, within the coverage area of a base station, there are still Shadow areas with poor signal conditions can occur due to shadow fading. Therefore, in order to overcome the influence of the shadow area in the cell and expand the coverage of the base station, the concept of the relay network emerges as the times require. The relay network uses RS (relay station, relay station) to forward signals between ...
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IPC IPC(8): H04B7/14H04L12/56
Inventor 郭子华汪巍崴
Owner LENOVO (BEIJING) CO LTD