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Method for clustering districts, communication network and resource scheduling system

A technology for communication network and wireless resource scheduling, which is applied in the field of multi-cell clustering method and its communication network and resource scheduling system, which can solve the problems of no CoMP, no cooperation, and no CoMP allowed, so as to reduce switching frequency and reduce backhaul cost , the effect of reducing processing complexity

Active Publication Date: 2010-07-07
ALCATEL LUCENT SHANGHAI BELL CO LTD
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Problems solved by technology

For users belonging to the same cooperative cell but from different cells, since the LTE uplink adopts SC-FDMA transmission multiple access with low PAPR, the system requires each user to use contiguous resource units, so neither subband can Perform CoMP
[0015] (3) CoMP is not allowed between a cell edge user and its neighboring cell internal users, which is actually a typical scenario for multi-cell MIMO modes (such as interference nulling or interference suppression schemes)
[0016] The problem with the proposed combination of FFR and CoMP is that it is a simple combination with no coordination between neighboring cells

Method used

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  • Method for clustering districts, communication network and resource scheduling system
  • Method for clustering districts, communication network and resource scheduling system
  • Method for clustering districts, communication network and resource scheduling system

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Embodiment Construction

[0043] The present invention is discussed in detail below with reference to the accompanying drawings.

[0044]The invention provides a multi-cell clustering method, which includes: dividing each cell into a cell edge area and an internal cell according to the wireless position of the cell; organizing multiple adjacent cell edge areas into virtual cells.

[0045] figure 1 A multi-cell clustering method based on virtual cells is shown. Such as figure 1 As shown, in step 110, each cell is divided into a cell edge area and an internal cell according to the radio location of the cell.

[0046] The division criterion is: if the path loss difference between the location and the own cell and the adjacent cell is smaller than the threshold, then the radio location is at the edge of the cell. The set of all wireless positions satisfying this condition is the cell edge area, and the part of the cell except the cell edge area is the internal cell. The threshold can be configured as r...

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Abstract

The invention provides a method for clustering districts which comprises the following steps of: dividing each district into a district marginal area and an inner area according to a wireless position of the district and organizing a plurality of adjacent district marginal areas into a virtual district. The invention also provides a wireless resource scheduling method based on the method for clustering districts, a movement management method, a district pilot frequency design method, a communication network and a resource scheduling system.

Description

technical field [0001] The invention relates to wireless resource scheduling, in particular to a multi-cell clustering method, a communication network and a resource scheduling system. Background technique [0002] Next-generation cellular systems such as 802.16m and LTE-advanced will employ orthogonal multiple access techniques such as OFDMA or SC-FDMA to support high data rate transmissions. In these orthogonal systems, inter-cell co-channel interference is the main factor limiting the performance of the cell edge. [0003] Relevant specifications have proposed to adopt fractional frequency reuse (FFR) technology and its variants in the LTE R8 system to eliminate inter-cell interference. At present, 802.16m and LTE-advanced are both evolving to IMT-advance, so they both need to meet the performance index requirements proposed by IMT-advanced. However, 3GPP's research on LTE proves that static or semi-static FFR is not enough to provide what IMT-advanced requires. 2 to 3 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W16/10H04W28/20H04W72/12
Inventor 尤明礼温萍萍
Owner ALCATEL LUCENT SHANGHAI BELL CO LTD
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