Method and device for controlling disturbance

A technology of interference control and cross-slot interference, which is applied in the field of communication, can solve problems such as cross-slot interference of adjacent cells, system performance degradation, and inability to dynamically allocate TDD, so as to avoid cross-slot interference and improve system performance Effect

Active Publication Date: 2013-11-13
DATANG MOBILE COMM EQUIP CO LTD
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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 adjacen

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  • Method and device for controlling disturbance
  • Method and device for controlling disturbance

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Embodiment Construction

[0043] In order to reduce cross-slot interference in the TD-LTE system, in the embodiment of the present invention, each transmission node is divided into multiple clusters based on the coupling path loss between each transmission node, and then based on the TDD uplink and downlink data reported by each transmission node Configure reference information, determine the TDD uplink and downlink reference configuration and TDD uplink and downlink traffic volume of each transmission node, and judge each cluster in the set subframe according to the TDD uplink and downlink reference configuration and TDD uplink and downlink traffic volume of each transmission node Whether there is cross-slot interference among the transmission nodes included in the set subframe; and performing interference reduction adjustment on the transmission nodes included in the cluster with cross-slot interference in the set subframe.

[0044] Preferred embodiments of the present invention will be described in d...

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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...

Claims

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Application Information

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IPC IPC(8): H04L1/06H04W72/12
CPCH04W16/10
Inventor 徐婧潘学明沈祖康
Owner DATANG MOBILE COMM EQUIP CO LTD
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