Base station for realizing inter-cell interference coordination and method for realizing inter-cell interference coordination
A technology of inter-cell interference and cell, which is applied in the field of wireless communication to achieve the effect of improving business capabilities and reducing interference levels
Active Publication Date: 2013-08-07
ZTE CORP
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Problems solved by technology
In the OFDM system, although the interference problem between the internal cells (cells) is well solved, as the frequency reuse factor decreases, the inter-cell interference (Inter-Cell Interference, IC cell center area I) will be caused by increases with the proximity of co-channel interferers
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Embodiment Construction
[0043] In the base station provided by the present invention, in order to reduce the inter-cell interference level and control it in an ideal balanced state, a resource control module for adjusting the frequency resources configured by the users of the cell and a resource subset for the users of the cell are added. The power control module that adjusts the power upper limit difference between them.
[0044] Embodiments of the present invention can implement a base station for inter-cell interference coordination, see figure 1 , specifically includes the following modules: a user type classification module 10 , an interference level processing module 20 , a load calculation module 30 , a resource control module 40 , and a power control module 50 .
[0045] The user type classification module 10 is used to classify the types of users in the cell, and divide the users in each cell into edge users and central users, wherein in the cell, the area where the edge users are located is...
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The present disclosure discloses a method for inter-cell interference coordination, which includes: classifying users in a cell into cell-edge users and cell-center users and allocating frequency resources to the cell-edge users and the cell-center users; acquiring the interference level of the frequency resources in the cell according to inter-cell interference and recording the changing trend of the interference caused by a neighboring cell on the cell; and coordinating the inter-cell interference according to the interference level of the frequency resources in the cell and the changing trend of the interference caused by the neighboring cell on the cell. The present disclosure further discloses a base station for implementing inter-cell interference coordination. The present disclosure can effectively lower the level of inter-cell interference to an ideal balanced state and improve the service capability of a base station.
Description
technical field [0001] The invention relates to the field of wireless communication, in particular to a base station for realizing inter-cell interference coordination and a method for inter-cell interference coordination. Background technique [0002] As a symbol of a new generation of wireless communication technology, OFDM has increasingly demonstrated its advantages in wireless communication systems and has been adopted by various standards. The main technical advantages of the OFDM system lie in high spectral efficiency, strong bandwidth expansion, strong anti-multipath fading ability, convenient allocation of spectrum resources and realization of spatial diversity technology (MIMO) and other technologies. [0003] The OFDM system is the same as the traditional wireless cellular network, and improves spectrum utilization by reducing the frequency reuse factor. In the OFDM system, although the interference problem between the internal cells (cells) is well solved, as th...
Claims
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IPC IPC(8): H04W16/14H04W72/04H04W88/08H04L27/26H04W72/54
CPCH04W16/10H04W72/082H04W16/30H04W52/143H04W52/243H04W72/541
Inventor 赵刚
Owner ZTE CORP