Inter-cell interference coordination method and device for implementing same

A technology of inter-cell interference and coordination methods, applied in electrical components, wireless communication, network planning and other directions, which can solve the problems of low spectrum utilization of LTE system and dependence on improvement range.

Inactive Publication Date: 2010-11-24
ZTE CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In the prior art, static interference coordination does not require signaling interaction between cells, but makes the spectrum utilization rate of the LTE system low; quasi-static interference coordination depends on a certain number of inter-cell signaling interactions, compared with static interference coordination, The spectrum utilization of the LTE s

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  • Inter-cell interference coordination method and device for implementing same
  • Inter-cell interference coordination method and device for implementing same
  • Inter-cell interference coordination method and device for implementing same

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Embodiment Construction

[0083] The implementation process of the inter-cell interference coordination method in the embodiment of the present invention is as follows figure 1 shown, including the following steps:

[0084] Step 101: Each cell divides the cell into a central area, a transition area, and an edge area according to the channel quality parameters of the terminals in the cell; wherein, the channel quality parameters are downlink channel quality parameters or uplink channel quality parameters; during downlink data transmission , the central area, transition area and edge area are downlink central area, downlink transition area and downlink edge area; during uplink data transmission, the central area, transition area and edge area are uplink central area, uplink transition area and uplink edge area.

[0085] Step 102: Allocate frequency resources on the transmission frequency band for terminals currently allowed to adopt MIMO technology in the transition area of ​​the cell, and use the alloc...

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Abstract

The invention discloses an inter-cell interference coordination method and a device for implementing the same. The method comprises the following steps of: partitioning each cell into a central area, a transition area and an edge area according to the channel quality parameter of a terminal in the cell; distributing a frequency resource to the terminal which is currently permitted to adopt multiple input multiple output (MIMO) technology in the transition area of the cell on a transmission band; and transmitting data through the MIMO technology by using the distributed frequency resource. Theinvention also provides a device for realizing inter-cell interference coordination. A base station comprises a parameter acquisition module, a partition module, a first resource distribution module and a data transmission module. Due to the adoption of the method and the device of the invention, the frequency spectrum utilization ratio of a long term evolution (LTE) system can be enhanced.

Description

technical field [0001] The present invention relates to Long Term Evolution (LTE, Long Term Evolution) technology, in particular to a method for coordinating inter-cell interference and a device for realizing the method. Background technique [0002] The LTE network is a new generation of wireless network promoted by the 3rd Generation Partnership Project (3GPP, 3rd Generation Partnership Project) standard organization, focusing on high-speed data services, and its downlink adopts Orthogonal Frequency Division Multiple Access (OFDMA, Orthogonal Frequency Division Multiplexing Access) technology, uplink using single-carrier OFDMA (SC-OFDMA, Single Carrier-OFDMA) wireless access technology, combined with multiple-input multiple-output (MIMO, Multiple-Input Multiple-Out-put) technology to improve LTE system throughput And spectrum utilization, thereby increasing the data rate. [0003] In order to improve the data rate and coverage of the cell edge area, the LTE system also ne...

Claims

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Application Information

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IPC IPC(8): H04W16/10H04W72/08
Inventor 田华张长生赵刚
Owner ZTE CORP
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