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Inter-cell power control for interference management

一种小区间干扰、小区的技术，应用在传输的控制/均衡、功率管理、电气元件等方向，能够解决单个服务小区控制不够等问题

Active Publication Date: 2009-09-16
QUALCOMM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Turning the corner and needing a better control mechanism for increased cell phone transmit power surges to neighboring cells, as the control of a single serving cell is not enough

Method used

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  • Inter-cell power control for interference management
  • Inter-cell power control for interference management
  • Inter-cell power control for interference management

Examples

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Embodiment Construction

[0057] [0058] Various embodiments are described below with reference to the drawings, wherein like reference numerals are used to refer to like elements throughout. For purposes of explanation, numerous specific details are set forth in the following description in order to provide a thorough understanding of one or more embodiments. It may be evident, however, that the embodiments may be practiced without these specific details. In other instances, well-known structures and devices are shown in block diagram form in order to facilitate describing one or more embodiments.

[0058] [0059] Additionally, various embodiments are described herein in connection with wireless terminals. A wireless terminal may refer to a device that provides a voice and / or data connection to a user. A wireless terminal may be connected to a communication device such as a laptop or desktop computer, or may be a self-contained device such as a Personal Digital Assistant (PDA). A wireless terminal ca...

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Abstract

A system and method for inter-cell power control for interference management in an OFDM system is provided. The system provides for a combination use of open loop and closed loop PSD control algorithms. The open loop control is a function of path loss from the serving cell as well as the neighboring cells. The closed loop control updates the end node transmit PSD by listening to the load indicators from the serving cell and at least one other neighboring non-serving cell which generates the highest level of interference. The system thus provides a fast and tight control with multi-cell information that allows improved inter-cell interference control.

Description

[0001] Cross References to Related Applications [0002] [0001] This application claims priority to U.S. Provisional Patent Application No. 60 / 863,928, filed November 1, 2006, entitled "Method And Apparatus For Inter-Cell Power Control For Interference Management." The entirety of the aforementioned application is expressly incorporated into the present application by reference. [0002] technical field [0003] [0003] The following description relates generally to the field of wireless communications and, more specifically, to inter-cell power control for interference management in OFDM systems. [0004] background technology [0004] [0005] Typical load power control schemes focus on either closed-loop control or open-loop control. The prospects for combining the two types of loop control are very limited. In non-orthogonal systems, the method involving both types of loop control is suitable for spread-spectrum time-division systems and is aimed at single-cell applications. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/005
CPCH04W52/242H04W52/08H04W52/10H04L27/26H04W52/24
Inventor D·P·马拉蒂张晓霞
Owner QUALCOMM INC