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Methods and apparatus for mitigating interference in femtocell deployments

A potential, access point technology, applied in transmission monitoring, wireless network protocols, network topology, etc., to solve problems such as interference with femtocell access points, unplanned deployment of low-power base stations, and interference

Inactive Publication Date: 2016-06-29
QUALCOMM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] For this reason, deployment of such low power base stations is in many cases unplanned, and as such, base stations and / or mobile devices communicating with each other may cause interference to other low power base stations, macro cell base stations or other devices nearby
Similarly, devices communicating with macrocell base stations may interfere with nearby femtocell access points

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  • Methods and apparatus for mitigating interference in femtocell deployments
  • Methods and apparatus for mitigating interference in femtocell deployments
  • Methods and apparatus for mitigating interference in femtocell deployments

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Embodiment Construction

[0051] Various aspects are now described with reference to the figures. In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of one or more aspects. It may be evident, however, that these aspects may be practiced without these specific details.

[0052] As further described herein, interference caused by devices in communication with one or more access points can be mitigated in a femtocell deployment. For example, an inter-frequency handover (IFHO) may be triggered for a device communicating with a macrocell access point and causing at least a threshold level of interference to a femtocell access point. In another example, the femtocell access point may switch to operating in a hybrid access mode to serve one or more devices interfering with the femtocell access point. Also, for example, a macrocell access point can limit the data rate of devices with which it communicates to reduce t...

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Abstract

Methods and apparatus are provided for mitigating interference between access points and / or devices communicating with access points in unplanned network deployments. Inter-frequency handover (IFHO) thresholds or data rates for devices may be adjusted to cause IFHO or reduce the occurrence of interference based on determining that one or more served devices are potentially interfering with one or more access points, and / or The coverage area can be modified so that the device can communicate with one or more other access points to mitigate potential interference. The access point may switch the mode of operation to a hybrid or open access point to allow the one or more devices to switch to the access point based on determining interference from one or more devices served by other access points, and / or Or downlink transmit power can be boosted to allow one or more devices to perform IFHO from other access points to mitigate potential interference.

Description

[0001] Claiming Priority Based on 35 U.S.C.§.119 [0002] This patent application claims priority to Provisional Application No. 61 / 359,754, filed June 29, 2010, entitled "ENHANCEDUPLINKINTERFERENCEMANAGEMENT," which is assigned to the assignee of this application and is hereby incorporated by reference expressly incorporated herein. technical field [0003] The description that follows relates generally to wireless network communications and, more specifically, to mitigation of interference in femtocell deployments. Background technique [0004] Wireless communication systems are widely deployed to provide various communication content such as voice, data, and so on. A typical wireless communication system may be a multiple-access system capable of supporting communication with multiple users by sharing available system resources (eg, bandwidth, transmit power, ...). Examples of these multiple-access systems may include Code Division Multiple Access (CDMA) systems, Time D...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W36/20
CPCH04W36/20H04W48/08H04W80/08H04W84/045H04W84/105H04W88/10H04W48/02H04B17/345
Inventor F·梅什卡蒂周彦V·昌德M·亚武兹
Owner QUALCOMM INC