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Persistent interference mitigation in a wireless communication system

A wireless communication, persistent technology used in the field of data transmission technology to solve problems such as performance degradation

Inactive Publication Date: 2010-12-08
QUALCOMM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For both forward and reverse links, interference due to interfering base stations and interfering terminals can degrade performance

Method used

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  • Persistent interference mitigation in a wireless communication system
  • Persistent interference mitigation in a wireless communication system
  • Persistent interference mitigation in a wireless communication system

Examples

Experimental program
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Embodiment Construction

[0021] The techniques described herein may be used in various wireless communication systems, such as CDMA, TDMA, FDMA, OFDMA, SD-FDMA, and others. The terms "system" and "network" are often used interchangeably. A CDMA system 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 system can implement a radio technology such as Global System for Mobile Communications (GSM). The OFDMA system can implement such as Evolved UTRA (E-UTRA), Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, And so on and so on wireless technology. UTRA and E-UTRA are part of the Universal Mobile Telecommunications System (UMTS). 3GPP Long Term Evolution (LTE) is an upcoming release of UMTS that employs E-UTRA, which uses OFDMA on the downlink and SC-FDMA on the uplink. UTRA, E-UTRA, UMTS, L...

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PUM

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Abstract

Techniques for transmitting data with persistent interference mitigation in a wireless communication system are described. A station (e.g., a base station or a terminal) may observe high interference and may send a request to reduce interference to interfering stations. The request may be valid for a time period covering multiple response periods. Each interfering station may grant or dismiss the request in each response period, may dismiss the request by transmitting at full power, and may grant the request by transmitting at lower than full power. The station may receive a response from each interfering station indicating grant or dismissal of the request by that interfering station in each response period. The station may estimate SINR based on the response received from each interfering station and may exchange data with another station based on the estimated SINR. Persistent interference mitigation may reduce signaling overhead and improve resource utilization and performance.

Description

[0001] This application claims priority to U.S. Provisional Application No. 60 / 988,693, filed November 16, 2007, entitled "PERSISTENTAVOIDANCE MECHANISMS IN WIRELESS COMMUNICATIONSYSTEMS," which is assigned to the assignee of this application, Therefore, it is incorporated herein by reference. technical field [0002] In general, the present invention relates to communication, and in particular, the present invention relates to data transmission techniques for wireless communication systems. Background technique [0003] Wireless communication systems are widely deployed today to provide various communication content such as voice, video, packet data, messaging, broadcast, and so on. These wireless systems may be multiple-access systems capable of supporting multiple users by sharing the available system resources. Examples of such multiple access systems include Code Division Multiple Access (CDMA) systems, Time Division Multiple Access (TDMA) systems, Frequency Division M...

Claims

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Application Information

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IPC IPC(8): H04W28/06
CPCH04W52/325H04W72/0426H04B7/0617H04W72/08H04W52/241H04W72/046Y02B60/50H04W72/27H04W72/54Y02D30/70H04L25/0224H04B17/336H04W74/0816H04W72/23H04W72/541H04L5/0048H04W88/02H04W88/08
Inventor R·保兰基A·汉德卡尔N·布尚
Owner QUALCOMM INC
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