Adaptive Inter-cell Interference Coordination Method Based on Cell Candidate Primary Component Carrier

A technology of inter-cell interference and primary component carrier, applied in electrical components, wireless communication, network planning, etc.

Active Publication Date: 2016-08-17
白盒子(上海)微电子科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Purpose of the invention: The present invention is aimed at the random deployment of low-power nodes, and in the heterogeneous cellular network scenario where overlapping coverage occurs between low-power nodes, the existing inter-cell interference coordination method cannot effectively solve the problem of inter-cell control channel interference in the heterogeneous cellular network To solve the problems of variability and complexity, the present invention provides an adaptive inter-cell interference coordination method based on cell candidate primary component carriers

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  • Adaptive Inter-cell Interference Coordination Method Based on Cell Candidate Primary Component Carrier
  • Adaptive Inter-cell Interference Coordination Method Based on Cell Candidate Primary Component Carrier
  • Adaptive Inter-cell Interference Coordination Method Based on Cell Candidate Primary Component Carrier

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Embodiment Construction

[0036] Below in conjunction with specific embodiment, further illustrate the present invention, should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention, after having read the present invention, those skilled in the art will understand various equivalent forms of the present invention All modifications fall within the scope defined by the appended claims of the present application.

[0037] The adaptive inter-cell interference coordination method based on the cell candidate primary component carrier is divided into two aspects: the adaptive inter-cell interference coordination method based on the self-configuration of the cell candidate primary component carrier and the adaptive cell based on the self-optimization of the cell candidate primary component carrier Interference coordination method.

[0038] Taking the scenario of macro-pico in LTE-A (Long Term Evolution-Advanced) ...

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Abstract

The present invention discloses an adaptive inter-cell interference coordination method based on cell candidate primary component carriers. Firstly, the component carrier that transmits the user physical downlink control channel is defined as the primary component carrier, and the component carrier that transmits the user physical downlink shared channel is defined as the secondary component carrier. ; Then perform adaptive inter-cell interference coordination based on self-optimization of cell candidate primary component carriers and adaptive inter-cell interference coordination based on self-optimization of cell candidate primary component carriers. Under the premise of ensuring the overall spectral efficiency of macro+pico, the user PDCCH SINR and PDSCH SINR of the pico cell are improved, and the edge user throughput and cell throughput have a large gain; the user PDCCH SINR of the macro cell is improved. The enhanced inter-cell interference coordination method based on the self-optimization of cell candidate primary component carriers can adapt to the deployment location of pico eNB and user distribution, and effectively reduce the downlink interference between macro cells to pico cells and between pico cells.

Description

technical field [0001] The invention relates to an adaptive inter-cell interference coordination method based on self-optimization of cell candidate main component carriers in a heterogeneous cellular network, and belongs to the network technology field in mobile communication. Background technique [0002] Heterogeneous cellular networks bring low-power nodes (such as home base stations (HeNB), pico base stations (pico eNB), relays, etc.) Cell splitting gain greatly improves cell throughput and average user throughput. For the geographical coverage of the entire macro cell, the heterogeneous cellular network adds a lot of cell boundaries; on the other hand, due to the flexibility of the deployment location and number of low-power nodes, it leads to irregular and overlapping coverage of the low-power node coverage area . Therefore, low-power nodes will face both cross-layer interference from nearby macro stations and same-layer interference from nearby low-power nodes. Si...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W16/14H04W72/04
Inventor 潘志文陈国平尤肖虎刘楠
Owner 白盒子(上海)微电子科技有限公司
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