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Centralized interference calculating method and device for orthogonal frequency division multiplexing network

A technology of orthogonal frequency division and calculation method, which is applied in the field of communication, can solve the problems of low multi-user diversity gain and system throughput, improve multi-user diversity gain and system throughput, overcome inaccurate interference calculation, and improve calculation The effect of precision

Inactive Publication Date: 2011-05-04
ZTE CORP
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0008] The present invention aims to provide a centralized interference calculation method and device for OFDM networks, which can solve the problem of low multi-user diversity gain and low system throughput caused by inaccurate interference calculation in the related art

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  • Centralized interference calculating method and device for orthogonal frequency division multiplexing network
  • Centralized interference calculating method and device for orthogonal frequency division multiplexing network
  • Centralized interference calculating method and device for orthogonal frequency division multiplexing network

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Embodiment Construction

[0032] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0033] figure 1 Shows a flow chart of the interference calculation method according to the first embodiment of the present invention, the method includes the following steps:

[0034] Step 101, acquiring channel measurement information, transmit power to be used, and target SINR of users served by base stations in a cell cluster for uplink services;

[0035] Step 102, analyze the user's transmit power according to the channel measurement information, the proposed transmit power and the target SINR, and obtain the inter-cell interference suffered by the user.

[0036] This embodiment is the case of the uplink service. At this time, the channel measurement information, the transmit power to be used and the target SINR of the users served by the base stations in the cell cluster of the uplink service are first obtained, and then the us...

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Abstract

The invention provides a centralized interference calculating method and device for an orthogonal frequency division multiplexing (OFDM) network, belonging to interference methods and devices. The method comprises the following steps of: acquiring the channel measurement information, the transmitting power planned to be used and the target SINR (Signal to Interference plus Noise Ratio) of users served by each base station in a cell cluster of uplink business; and analyzing the transmitting power of the users according to the channel measurement information, the transmitting power planned to be used and the target SINR to obtain intracell interference to users. The invention increases the calculation accuracy of intracell interference and benefits increasing the multi-user diversity gain and the throughput of the system, so that the problems of low multi-user diversity gain and low throughput caused by inaccurate interference calculation in the prior art are solved.

Description

technical field [0001] The present invention relates to the communication field, in particular to a centralized interference calculation method and device for an OFDM network. Background technique [0002] In order to meet the challenges of broadband access technology and to meet new service requirements, the International Organization for Standardization 3GPP (3rd Generation Partnership Project) launched its Long Term Evolution (LTE) technology at the end of 2004. standardization work. The LTE-Advanced working group meeting held in Shenzhen in April 2008 proposed the following specific goals for the LTE transmission system: [0003] [0004] In order to achieve such a high rate and spectrum efficiency required by LTE-Advanced, the Signal Interference Noise Ratio (SINR) of users in the system must be greatly improved, which requires accurate prediction or control of interference. Since the LTE system can ensure good orthogonality between users in a cell, it effectively ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W24/08H04W24/10H04W72/08H04W72/54
Inventor 王亚峰李中年路淼郑毅崔亚楠刁心玺马志锋
Owner ZTE CORP