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Cell clustering algorithm based on interference coordination

A cell clustering and interference coordination technology, which is applied in the field of information processing, can solve problems such as poor flexibility, inability to eliminate the strongest interference, and limited system throughput and average throughput gain of the cell, achieving the effect of high system throughput gain

Active Publication Date: 2017-12-01
陕西云瑞创智科技有限公司
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Problems solved by technology

However, for users in different geographical locations, the interference source that causes the strongest interference to them does not necessarily come from within the cluster. Using this clustering scheme cannot eliminate the strongest interference, which will lead to overall system throughput and cell average throughput gains. Restricted; in addition, the strongest interfering cell may also change during the user's movement in the system network
Overall, the network-based clustering scheme is simple to implement but less flexible

Method used

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Embodiment Construction

[0020] The present invention will be further described below:

[0021] The realization steps of grouping algorithm of the present invention:

[0022] Step 1: Calculate the sum of the weights of M users respectively where w uv Represents the interference weight between user u and user v, and M represents the number of users;

[0023] Step 2: Calculate the centroid of the entire user weight, introduce a disturbance factor d, split the centroid into two sub-nodes, and split into two groups centered on this sub-node. Then calculate all users E separately u The distance between the two child nodes, take out the smallest user N in the distance corresponding to each child node, and store them in the group respectively;

[0024] Step 3: The remaining M-N nodes in the set are assigned a node to the group every iteration, and at the same time, it is necessary to ensure that the weight sum in the group is the smallest;

[0025] Step 4: Once a new node is assigned to the group, upda...

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Abstract

The invention discloses a cell clustering algorithm based on interference coordination. Compared with prior art, according to the invention, the user-based algorithm enables each user to freely select most appropriate coordination cluster in such a manner that from the user's perspective, once the cell turns to a coordination cell, the interference among cells can be eliminated at the maximum level, and higher system turnout gain can be obtained. The theory of cell clustering algorithm iteratively allocates nodes to clusters, ensures minimization of distance gains among nodes which are allocated to the cluster in each iteration process, performs processing by placing users which have strong interference to the same cluster, applies the interference avoiding technology which is based on time domain or frequency domain to intra-cluster interferences; and applies intra-cell interference coordination technology to intra-cluster interference.

Description

technical field [0001] The invention relates to the technical field of information processing, in particular to a cell clustering algorithm based on interference coordination. Background technique [0002] CoMP technology achieves higher average cell throughput and cell user edge throughput through inter-cell cooperation. However, the information sharing required for all base stations to participate in the cooperation of designated users requires a high backhaul capacity; for large-scale The complexity of the system network is very high, and it is almost difficult to realize; in addition, the main interference of users in a cell comes from a limited number of adjacent cells, and the interference generated by other cells is relatively small. In order to reduce the implementation complexity of inter-cell cooperation, the cooperation technology can be limited to a cooperation cluster composed of a limited number of base stations or access points. In fact, choosing a suitable c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/12H04W40/32H04W16/10H04J11/00
CPCH04J11/0053H04W16/10H04W40/32H04W72/121
Inventor 梁彦霞孙长印卢光跃杨武军王军选姜静何华李皓
Owner 陕西云瑞创智科技有限公司
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