Method and device for controlling disturbance

Abstract

The invention relates to the communication field and discloses a method and a device for controlling disturbance. The method includes that a central node divides transmission nodes into a plurality of clusters based on coupling path loss among the transmission nodes, judges whether the transmission nodes contained in each cluster in set subframes have intersection time slot disturbance according to the time division duplex (TDD) uplink and downlink reference configurations and the TDD uplink and downlink business volume of the transmission nodes, and conducts disturbance reduction adjustment aiming at the transmission nodes contained in the clusters in the set subframes and having the intersection time slot disturbance. Therefore, the method and the device can effectively reduce or avoid the intersection time slot disturbance among the transmission nodes in each subframe, maximize the subframe configuration mode flexibility among the transmission nodes and remarkably improves system performance.

Description

technical field [0001] The present invention relates to the field of communications, in particular to a method and device for interference control Background technique [0002] As one of the two basic duplex systems, the TDD (Time division duplex, time division duplex) system has received more and more attention under the background of increasing bandwidth requirements for broadband mobile communications. In a TDD system, uplink and downlink transmission use the same frequency resource, and uplink / downlink signals are transmitted on different time slots. In common TDD systems [eg, 3G TD-SCDMA (Time Division-Synchronous Code Division Multiple Access) system and 4G TD-LTE (TD-SCDMA-Long Term Evolution, Time Division Synchronous Code long-term evolution of multiple access)], the division of uplink and downlink time slots is static or semi-static, the usual practice is to determine the proportion of uplink and downlink time slots in the network planning process according to the...

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Problems solved by technology

[0022] Therefore, although there are schemes for dynamically allocating TDD uplink and downlink configurations in the prior art, the application obstacles of these schemes will cause serious cross-slot interference between adjacent cells, including the interference of adjacent cells of the same frequency , including adjacent cell interference of adjacent frequencies. If this type of interference problem cannot be resolved, not only will the advantages of the scheme of dynamically allocating TDD uplink and downlink configuration not be fully utilized, but the entire network will be paralyzed, resulting in a serious decline in system performance.

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