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Method for coordinating district interference

A technology of cell interference and receiving interference, applied in the field of communication, can solve problems such as waste of system resources, frequent ICIC, unreasonable and fair ICIC, etc., and achieve the effect of improving system performance, fair and reasonable ICIC, and improving resource utilization

Active Publication Date: 2009-07-01
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, the above priority factors make ICIC unreasonable and fair, resulting in frequent ICIC and wasting system resources

Method used

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  • Method for coordinating district interference
  • Method for coordinating district interference
  • Method for coordinating district interference

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Use the X2 interface to transfer the list of interfering PRBs between eNBs, such as figure 1 Shown is a flow chart of the embodiment of the present invention, eNB1 and eNB2 are adjacent evolved base stations, and the process includes:

[0022] Step 201: eNB1 exchanges interference PRB lists with eNB2;

[0023] In this embodiment, two neighboring cells respectively belonging to the two eNBs use the interfering PRB at the same time.

[0024] As shown in Table 1, the interfering PRB list includes cell information using the interfering PRB, different cell types have different priorities, and user information using the interfering PRB, such as user priority. "M" in the table indicates that the corresponding parameter is mandatory, and "O" indicates that the corresponding parameter is optional.

[0025] Table 1

[0026] Cell ID (CellID) M >PRB list M >>Physical PRB ID (PRBID) M >>>Cell attribute using interference PRB O >>>...

Embodiment 2

[0039] In the embodiment of the present invention, the ICIC is performed by counting the number of users of each priority in the cell using the interference PRB and the number of users of the priority configured by the network management or specified by the algorithm of the eNB.

[0040] Such as image 3 Shown is a schematic flow diagram of Embodiment 2 of the present invention.

[0041] Step 301: eNB1 exchanges interference PRB lists with eNB2;

[0042] The list shown in Table 2 includes parameters such as the priority of users in the cell using the interference PRB, the number of users belonging to each user priority, and the like added in eNB1. "M" in the table indicates that the corresponding parameter is mandatory, and "O" indicates that the corresponding parameter is optional.

[0043] Table 2

[0044] Cell ID M >PRB list (PRBlist) M >>PRB ID (PRB ID) M >Cell attributes using interfering PRBs O > Cell priority using inte...

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PUM

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Abstract

The invention discloses a method for coordinating cell interference, which comprises the following steps: an evolution base station eNB receives an interference physical resource block PRB list, a plurality of parameters are included in the interference PRB list, the parameters include information on interference PRB users, a cell identity and a PRB identity; the evolution base station eNB judges whether the interference PRB is continuously utilized or not according to priority decision values, and the priority decision values are calculated according to the parameters. The invention further provides a base station for coordinating the cell interference, which comprises a transceiver module, a decision module and an executable module. By adopting the method and the base station for coordinating the cell interference, the cell interference coordination can be fairer and more reasonable, the frequency of the cell interference coordination is reduced, and the system performance is enhanced.

Description

technical field [0001] The invention relates to the communication field, in particular to a cell interference coordination method. Background technique [0002] In the network topology, when a cell is adjacent to cells of different evolved NodeBs (eNBs), if the frequency of each cell is the same, before the system is started, each cell does not plan a starting point to determine which resources Which resources are used at the cell center and which resources are used at the cell edge, then when the resource used by cell A is at the cell edge, if the adjacent cell B also allocates the resource, it will cause interference. In order to avoid interference or reduce interference, it can be realized through coordination among eNBs. This process is called Inter-cell Interference Coordination (ICIC). [0003] If the physical resource blocks (Physical Resource Blocks, PRBs) at the edge of the cell are specified in network planning and network optimization in advance, and mutual util...

Claims

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Application Information

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IPC IPC(8): H04W72/08H04W72/10H04W88/08
CPCY02B60/50
Inventor 黄英邱勇
Owner HUAWEI TECH CO LTD
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