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Interference management based on enhanced pilot measurement reports

A technology of pilot frequency measurement and interference management, which is applied in the field of interference management and can solve problems such as performance degradation

Inactive Publication Date: 2010-12-29
QUALCOMM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

High interference on each link degrades performance

Method used

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  • Interference management based on enhanced pilot measurement reports
  • Interference management based on enhanced pilot measurement reports
  • Interference management based on enhanced pilot measurement reports

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Embodiment Construction

[0020] The techniques described herein may be used in various wireless communication networks, such as CDMA, TDMA, FDMA, OFDMA, SC-FDMA, and others. The terms "network" and "system" are often used interchangeably. A CDMA network may implement a radio technology such as Universal Terrestrial Radio Access (UTRA), cdma2000, and so on. UTRA includes Wideband-CDMA (WCDMA) and other variants of CDMA. cdma2000 covers IS-2000, IS-95 and IS-856 standards. A TDMA network can implement a radio technology such as Global System for Mobile Communications (GSM). OFDMA networks can implement radio technologies such as Evolved UTRA (E-UTRA), Ultra Mobile Broadband (UMB), IEEE802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash- wait. UTRA and E-UTRA are part of the Universal Mobile Telecommunications System (UMTS). 3GPP Long Term Evolution (LTE) is an upcoming UMTS that utilizes E-UTRA using OFDMA on the downlink and SC-FDMA on the uplink. UTRA, E-UTRA, UMTS, LTE and GSM are describe...

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Abstract

Techniques for managing interference in a wireless network are described. A base station may receive enhanced pilot measurement reports from user equipments (UEs) and may make an interference management decision based on the received reports. The base station may select a serving base station for a UE based on an enhanced pilot measurement report received from the UE. The base station may determine resources with a low target interference level at a neighbor base station and may avoid scheduling a UE for uplink transmission on the resources. The base station may also determine whether to reserve resources for a neighbor base station based on data performance of the neighbor base station, whether the neighbor base station observes high interference from UEs served by the base station, or whether UEs served by the neighbor base station observe high interference from the base station, which may be determined based on the enhanced pilot measurement reports.

Description

[0001] This application claims priority to U.S. Provisional Patent Application Serial No. 61 / 025,644, filed February 1, 2008, entitled "INTERFERENCE AVOIDANCE," assigned to the assignee of this application, and incorporated by reference incorporated into this application. technical field [0002] The present disclosure relates generally to communications and, more particularly, to techniques for managing interference in wireless communications networks. Background technique [0003] Wireless communication networks are widely deployed today to provide various communication content such as voice, video, packet data, messaging, broadcast, and so on. These wireless networks may be multiple-access networks capable of supporting multiple users by sharing available network resources. Examples of such multiple-access networks include: Code Division Multiple Access (CDMA) networks, Time Division Multiple Access (TDMA) networks, Frequency Division Multiple Access (FDMA) networks, Ort...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/08H04W72/54
CPCH04W72/082H04W24/10H04W72/541
Inventor A·阿格拉瓦尔A·D·汉德卡尔N·布尚A·Y·戈罗霍夫R·保兰基
Owner QUALCOMM INC