Interference coordination method based on HeNB active cognition, device and system

A kind of interference coordination and active technology, applied in the field of mobile communication, can solve the problem of Muser strong interference and so on
CN102333338AInactive Publication Date: 2012-01-25TD TECH COMM TECH LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
TD TECH COMM TECH LTD
Publication Date
2012-01-25
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides an interference coordination method based on Home eNodeB (HeNB) active cognition in a Femtocell. The HeNB perceives the interference energy from self to a macro-cell user (Muser) and sends the information of the interference energy to a macro-cell eNodeB (MeNB), the equivalent noise power of the Muser is calculated by the MeNB based on the interference energy perceived by each HeNB, the interference threshold of each HeNB is respectively calculated according to the equivalent noise power, and the HeNB calculates self frequency domain emission predictive codes according to an interference channel from self to the Muser, the interference threshold, the frequency deviation of the HeNB and the Muser and the channel between the HeNB and the Muser. The invention also discloses a device and a system for realizing the method. The invention has the technical scheme that the number of subcarriers occupied at the Muser is smaller than that of subcarriers occupied at the Femtocell, when the Muser and the HeNB have frequency deviation, the performance decline ratio of the Muser can be effectively ensured to be smaller than the preset permitted maximum value eta, and simultaneously effective power distribution can be carried out on the subcarriers unoccupied by a main user so as to promote the transmission performance of the Femtocell, so the throughput of a cellular network is effectively increased.
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Description

technical field

[0001] The present invention relates to mobile communication technology, in particular to Femtocell technology, and in particular to an interference coordination method, device and system based on active cognition of a Home Base Station (HeNB) (ie, a base station of a Femtocell). Background technique

[0002] Femtocell is an ultra-miniature mobile base station launched according to the development of 3G and the trend of mobile broadband in recent years. Femtocell uses IP protocol to connect users with existing broadband lines such as Digital Subscriber Line (DSL) and Local Area Network (LAN), and the remote end uses a dedicated gateway to realize the connection from IP network to mobile network. The size of the Femtocell device is similar to that of an ADSL modem, and it has the characteristics of easy installation, automatic configuration, automatic network planning, and plug-and-play. Femtocell has products that are applicable to various standards such as ...

Claims

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