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Coordination method for inter-cell interference and RNC (radio network controller)

A technology of inter-cell interference and coordination methods, applied in wireless communication, network planning, electrical components, etc., can solve problems such as network congestion and excessive signaling, and achieve the effect of avoiding interference

Inactive Publication Date: 2013-01-30
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the dynamic interference coordination algorithm, due to the need for the base station to report the communication quality information in real time, there will be too much signaling in the network, and network congestion will occur.
Therefore, both of the above two interference coordination algorithms have deficiencies.

Method used

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  • Coordination method for inter-cell interference and RNC (radio network controller)
  • Coordination method for inter-cell interference and RNC (radio network controller)
  • Coordination method for inter-cell interference and RNC (radio network controller)

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] In this embodiment, edge user throughput is used as a parameter to measure the communication quality of a cell. Judge the communication quality of the cell according to the throughput of the edge users of the cell. Calculate the average throughput of the edge users of the cell, and the RNC allocates different special time period lengths for the cell according to the average throughput of the edge users. The RNC can preset the average throughput threshold of the edge users of the cell, and compare the average throughput of the edge users of the cell with the preset threshold at the beginning of each scheduling cycle, and judge whether to adjust the special time period according to the comparison result, or at each Adjust the special time period directly at the end of the scheduling cycle.

[0063] A specific method for adjusting the special time period may be as follows: grading according to the average throughput of the cell edge users, and different levels correspond ...

Embodiment 2

[0075] In this embodiment, the average SINR value of the cell edge users is used as a parameter to measure the communication quality of the cell. The RNC judges the communication quality of the cell according to the average SINR value of the cell edge users. Calculate the average SINR of the cell edge users, and assign different special time period lengths to the cell according to the average SINR of the cell edge users. There are also different methods of assigning specific time period lengths to cells. The average SINR of the cell edge users can be graded, and different grades correspond to different special time period lengths. It is also possible to use a proportional allocation method to calculate the average SINR of the cell-edge users and the average SINR of adjacent cell-edge users, and distribute according to the proportional relationship between the average SINR of the cell-edge users and the average SINR of adjacent cell-edge users .

[0076]Step 401: Preset the ...

Embodiment 3

[0086] In this embodiment, the GBR dissatisfaction rate of the central user is used as a parameter to measure the communication quality of the cell. The RNC judges the communication quality of the cell according to the GBR dissatisfaction rate of the central user of the cell. Calculate the GBR dissatisfaction rate of the center user in the cell, and assign different special time period lengths to the cell according to the GBR dissatisfaction rate of the center user on the RNC. There are also different methods of assigning specific time period lengths to cells. The GBR dissatisfaction rate of the users in the center of the cell can be graded, and different grades correspond to different special time period lengths. It is also possible to use a proportional allocation method to calculate the GBR dissatisfaction rate of the cell and the GBR dissatisfaction rate of the adjacent cell, and distribute according to the proportional relationship between the GBR dissatisfaction rate of...

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Abstract

The invention provides a coordination method for inter-cell interference. An RNC (radio network controller) dynamically distributes special time buckets for each cell, wherein the special time buckets of adjacent cells are not overlapped, and the special time buckets are used for executing an interference coordination strategy. The invention further provides an RNC which comprises a distribution unit which is used for dynamically distributing the special time buckets for each cell, wherein the special time buckets of adjacent cells are not overlapped, and the special time buckets are used for executing the interference coordination strategy for the cells. Inter-cell interference can be reduced effectively.

Description

technical field [0001] The invention relates to the field of wireless communication, and mainly proposes an interference coordination method and a wireless network controller aiming at the problem of inter-cell interference in a wireless communication network. Background technique [0002] The wireless communication network is composed of macro cells (macrocells), and the coverage radius of each cell is about 1 km to 25 km. figure 1 It is a schematic diagram of a mobile communication system composed of macro cells. Such as figure 1 As shown, each cell has a base station, which establishes a wireless communication link with the mobile stations in its service area. The wireless resources in the cell are limited, and it is impossible for the base station transceiver device to allocate a wireless channel or a wireless link to each user of the mobile terminal active in the cell at every moment. In particular, mobile terminals are now capable of providing billing and bulk data ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W16/04H04W16/10H04W16/14H04W88/12
Inventor 李兰兰
Owner ZTE CORP