MX2010008315A - Metodo y aparato para atenuar la contaminacion de piloto en una red inalambrica. - Google Patents
Metodo y aparato para atenuar la contaminacion de piloto en una red inalambrica.Info
- Publication number
- MX2010008315A MX2010008315A MX2010008315A MX2010008315A MX2010008315A MX 2010008315 A MX2010008315 A MX 2010008315A MX 2010008315 A MX2010008315 A MX 2010008315A MX 2010008315 A MX2010008315 A MX 2010008315A MX 2010008315 A MX2010008315 A MX 2010008315A
- Authority
- MX
- Mexico
- Prior art keywords
- density
- transmit power
- pilot
- power level
- wireless network
- Prior art date
Links
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
- H04L1/0003—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes
- H04L1/0004—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes applied to control information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0006—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission format
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0009—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
- H04L1/001—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding applied to control information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
- H04L5/005—Allocation of pilot signals, i.e. of signals known to the receiver of common pilots, i.e. pilots destined for multiple users or terminals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
- H04L5/0057—Physical resource allocation for CQI
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0058—Allocation criteria
- H04L5/006—Quality of the received signal, e.g. BER, SNR, water filling
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0058—Allocation criteria
- H04L5/0062—Avoidance of ingress interference, e.g. ham radio channels
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/18—TPC being performed according to specific parameters
- H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
- H04W52/241—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account channel quality metrics, e.g. SIR, SNR, CIR, Eb/lo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/18—TPC being performed according to specific parameters
- H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
- H04W52/243—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account interferences
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/30—TPC using constraints in the total amount of available transmission power
- H04W52/32—TPC of broadcast or control channels
- H04W52/325—Power control of control or pilot channels
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/30—TPC using constraints in the total amount of available transmission power
- H04W52/34—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading
- H04W52/343—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading taking into account loading or congestion level
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
- H04L1/0026—Transmission of channel quality indication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/0202—Channel estimation
- H04L25/0224—Channel estimation using sounding signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0044—Arrangements for allocating sub-channels of the transmission path allocation of payload
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Quality & Reliability (AREA)
- Mobile Radio Communication Systems (AREA)
- Radio Transmission System (AREA)
Abstract
Se describen técnicas para mitigar la contaminación de piloto en una red inalámbrica. En un aspecto, la contaminación de piloto puede mitigarse al reducir la densidad y/o potencia de transmisión de pilotos comunes siempre que sea posible. Una celda puede enviar una piloto común en una primera densidad y en un primer nivel de potencia de transmisión durante un primer periodo de tiempo y puede enviar la piloto común en una segunda densidad y un segundo nivel de potencia de transmisión durante un segundo periodo de transmisión. La segunda densidad puede ser menor que la primera densidad y/o el segundo nivel de potencia de transmisión puede ser menor que el primer nivel de potencia de transmisión. Puede lograrse una menor densidad al enviar la piloto común menos frecuentemente, en menos subportadoras, y/o desde menos antenas. La celda puede determinar si reduce o no la densidad y/o potencia de transmisión de la piloto común con base en la carga de red, las SINRs de las terminales, etc. En otro aspecto, la contaminación de piloto puede mitigarse al realizar la cancelación de piloto en una terminal.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US2489108P | 2008-01-30 | 2008-01-30 | |
US12/359,992 US8897269B2 (en) | 2008-01-30 | 2009-01-26 | Method and apparatus for mitigating pilot pollution in a wireless network |
PCT/US2009/032159 WO2009099810A2 (en) | 2008-01-30 | 2009-01-27 | Method and apparatus for mitigating pilot pollution in a wireless network |
Publications (1)
Publication Number | Publication Date |
---|---|
MX2010008315A true MX2010008315A (es) | 2010-10-20 |
Family
ID=40886645
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MX2010008315A MX2010008315A (es) | 2008-01-30 | 2009-01-27 | Metodo y aparato para atenuar la contaminacion de piloto en una red inalambrica. |
Country Status (16)
Country | Link |
---|---|
US (2) | US8897269B2 (es) |
EP (2) | EP2512193B1 (es) |
JP (3) | JP5718057B2 (es) |
KR (3) | KR101280974B1 (es) |
CN (3) | CN101983531B (es) |
AU (1) | AU2009210526B2 (es) |
BR (1) | BRPI0906602A2 (es) |
CA (3) | CA2978888A1 (es) |
ES (2) | ES2473318T3 (es) |
HK (1) | HK1206903A1 (es) |
IL (1) | IL207269A0 (es) |
MX (1) | MX2010008315A (es) |
RU (1) | RU2469510C2 (es) |
SG (1) | SG188089A1 (es) |
TW (2) | TW201419801A (es) |
WO (1) | WO2009099810A2 (es) |
Families Citing this family (84)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8897269B2 (en) | 2008-01-30 | 2014-11-25 | Qualcomm Incorporated | Method and apparatus for mitigating pilot pollution in a wireless network |
JP5684581B2 (ja) | 2008-03-13 | 2015-03-11 | アイディーティーピー ホールディングス インコーポレイテッド | 通信システムにおける隣接セル品質測定 |
US9867203B2 (en) | 2008-07-11 | 2018-01-09 | Qualcomm Incorporated | Synchronous TDM-based communication in dominant interference scenarios |
GB2463074B (en) * | 2008-09-02 | 2010-12-22 | Ip Access Ltd | Communication unit and method for selective frequency synchronisation in a cellular communication network |
US8130849B2 (en) * | 2008-09-16 | 2012-03-06 | Telefonaktiebolaget Lm Ericsson (Publ) | Maximum A posteriori interference estimation in a wireless communication system |
US9031053B2 (en) * | 2008-10-23 | 2015-05-12 | Qualcomm Incorporated | Method and apparatus for communicating in a relay communication network |
EP2200245B1 (en) * | 2008-12-19 | 2012-08-15 | Telefonaktiebolaget L M Ericsson (publ) | A receiver and a method for mobile communications |
EP2384595B1 (en) * | 2009-01-02 | 2015-09-30 | Motorola Mobility LLC | Power control in a multi-layer cellular communication system |
US9338031B2 (en) | 2009-08-17 | 2016-05-10 | Qualcomm Incorporated | Methods and apparatus for interference decrease/cancellation on downlink acquisition signals |
CN101998607B (zh) * | 2009-08-31 | 2013-07-31 | 中国移动通信集团公司 | 上行时隙引入下行传输辅同步信号的方法、系统及装置 |
CN101741461B (zh) * | 2009-12-29 | 2014-04-02 | 华为技术有限公司 | 邻区干扰消除方法、装置和接收机 |
US8385243B2 (en) | 2010-01-18 | 2013-02-26 | Qualcomm Incorporated | Method of selecting bit rate and transmit power for energy-efficient transmission |
KR101461974B1 (ko) * | 2010-02-02 | 2014-11-14 | 엘지전자 주식회사 | 확장 캐리어에서의 측정 수행 방법 및 장치 |
EP2540116A4 (en) * | 2010-02-24 | 2015-06-24 | Ericsson Telefon Ab L M | METHOD AND DEVICE FOR CONTROLLING ENERGY CONSUMPTION IN A BASE STATION WITH SEVERAL ANTENNAS |
CN102823167B (zh) | 2010-03-24 | 2015-09-09 | Lg电子株式会社 | 无线电通信系统中减少小区间干扰的方法和设备 |
US9609536B2 (en) * | 2010-04-13 | 2017-03-28 | Qualcomm Incorporated | Measurement of received power and received quality in a wireless communication network |
US9065583B2 (en) * | 2010-04-13 | 2015-06-23 | Qualcomm Incorporated | Method and apparatus for inferring user equipment interference suppression capability from measurements report |
CN102238582B (zh) * | 2010-04-23 | 2016-09-28 | 电信科学技术研究院 | 一种确定邻区干扰的方法、系统和装置 |
US9425915B2 (en) | 2010-04-30 | 2016-08-23 | Qualcomm Incorporated | Interference cancellation |
US8737187B2 (en) * | 2010-04-30 | 2014-05-27 | Qualcomm Incorporated | Interference cancellation |
US8768359B2 (en) | 2010-08-20 | 2014-07-01 | Qualcomm Incorporated | Sample selection for secondary synchronization signal (SSS) detection |
US8817924B2 (en) * | 2010-09-23 | 2014-08-26 | Qualcomm Incorporated | Iterative pilot tone cancellation for improved channel estimation and decoding |
GB2486494A (en) * | 2010-12-17 | 2012-06-20 | Vodafone Ip Licensing Ltd | Interference detection in mobile telecommunications networks |
US20120182895A1 (en) * | 2011-01-13 | 2012-07-19 | Electronics And Telecommunications Research Institute | Apparatus and method for transmitting and receiving channel state information |
EP3522579B1 (en) * | 2011-02-14 | 2021-02-03 | Huawei Technologies Co., Ltd. | Control channel transmission and reception method and system |
EP2506639B1 (en) * | 2011-03-31 | 2014-06-04 | Alcatel Lucent | Pilot power control |
US8489031B2 (en) * | 2011-05-18 | 2013-07-16 | ReVerb Networks, Inc. | Interferer detection and interference reduction for a wireless communications network |
EP2532689A1 (de) * | 2011-06-07 | 2012-12-12 | Basf Se | Herstellung von Polyacrylaten durch Emulsionspolymerisation |
US9008582B2 (en) * | 2011-08-25 | 2015-04-14 | Qualcomm Incorporated | User equipment enhancements for cooperative multi-point communication |
WO2013055268A1 (en) * | 2011-10-13 | 2013-04-18 | Telefonaktiebolaget L M Ericsson (Publ) | Method and node related to channel estimation |
US11696300B2 (en) | 2011-10-29 | 2023-07-04 | Comcast Cable Communications, Llc | Configuration of reduced transmission power time intervals based on traffic load |
US8937918B2 (en) | 2011-10-29 | 2015-01-20 | Ofinno Technologies, Llc | Efficient special subframe allocation |
US8971250B2 (en) | 2011-10-29 | 2015-03-03 | Ofinno Technologies, Llc | Special subframe allocation |
EP2597793A1 (en) * | 2011-11-25 | 2013-05-29 | TELEFONAKTIEBOLAGET LM ERICSSON (publ) | Method for estimating interference within a serving cell, user equipment, computer program and computer program products |
US8873467B2 (en) | 2011-12-05 | 2014-10-28 | Ofinno Technologies, Llc | Control channel detection |
US20130142291A1 (en) * | 2011-12-05 | 2013-06-06 | Esmael Hejazi Dinan | Synchronization Signals Detection |
CN102523186B (zh) * | 2011-12-19 | 2014-10-22 | 展讯通信(上海)有限公司 | 通信终端及其干扰抵消方法和装置、数据解调方法 |
FR2984658A1 (fr) * | 2011-12-19 | 2013-06-21 | France Telecom | Etablissement de l'indicateur de qualite d'un canal radio par decorrelation des conditions radio et de l'activite reseau |
US8934436B2 (en) | 2011-12-31 | 2015-01-13 | Ofinno Technologies, L.L.C. | Special subframe configuration in wireless networks |
EP2805553A4 (en) * | 2012-01-20 | 2015-06-17 | Ericsson Telefon Ab L M | CONFIGURATION OF COMMON PILOT SENSITIVE TO TRAFFIC |
US9385904B2 (en) * | 2012-01-30 | 2016-07-05 | Optis Cellular Technology, Llc | Method and apparatus for pilot power allocation in a multi antenna communication system |
US9288680B2 (en) * | 2012-03-22 | 2016-03-15 | Alcatel Lucent | Almost blank subframe duty cycle adaptation in heterogeneous networks |
JP2013219507A (ja) * | 2012-04-06 | 2013-10-24 | Ntt Docomo Inc | 無線通信方法、ローカルエリア基地局装置、移動端末装置及び無線通信システム |
CA2873428A1 (en) * | 2012-05-13 | 2013-11-21 | Amir Khandani | Distributed collaborative signaling in full duplex wireless transceivers |
US9997830B2 (en) | 2012-05-13 | 2018-06-12 | Amir Keyvan Khandani | Antenna system and method for full duplex wireless transmission with channel phase-based encryption |
US20140016691A1 (en) * | 2012-07-16 | 2014-01-16 | Rambus Inc. | Adaptive Interference Suppression Using Interference Power Measurements |
US9357507B2 (en) * | 2012-09-13 | 2016-05-31 | Qualcomm Incorporated | Centralized management for pilot pollution mitigation in small cell networks |
US9900132B2 (en) * | 2012-11-14 | 2018-02-20 | Telefonaktiebolaget Lm Ericsson (Publ) | Pilot signal transmission method, associated transmit-receive point, pilot signal reception method and associated user equipment |
US11177919B2 (en) * | 2013-01-18 | 2021-11-16 | Texas Instruments Incorporated | Methods for energy-efficient unicast and multicast transmission in a wireless communication system |
US20140219117A1 (en) * | 2013-02-07 | 2014-08-07 | Qualcomm Incorporated | Apparatus and method for inter cell interference coordination |
US9094951B2 (en) * | 2013-03-14 | 2015-07-28 | Qualcomm Incorporated | Communications methods and apparatus for allocation of resources and handover related measurements |
CN104488320B (zh) * | 2013-05-10 | 2018-12-07 | 华为技术有限公司 | 一种信号传输方法及设备 |
US10177896B2 (en) | 2013-05-13 | 2019-01-08 | Amir Keyvan Khandani | Methods for training of full-duplex wireless systems |
US9413516B2 (en) | 2013-11-30 | 2016-08-09 | Amir Keyvan Khandani | Wireless full-duplex system and method with self-interference sampling |
US9236996B2 (en) | 2013-11-30 | 2016-01-12 | Amir Keyvan Khandani | Wireless full-duplex system and method using sideband test signals |
US9641310B2 (en) * | 2013-12-13 | 2017-05-02 | Qualcomm Incorporated | Network assisted interference cancellation signaling |
CN104735792B (zh) * | 2013-12-23 | 2018-10-02 | 华为技术有限公司 | 导频资源分配方法及装置 |
US9820311B2 (en) | 2014-01-30 | 2017-11-14 | Amir Keyvan Khandani | Adapter and associated method for full-duplex wireless communication |
EP3127264B1 (en) * | 2014-03-31 | 2022-07-13 | Sony Group Corporation | Pilot time slot hopping |
EP3522406A1 (en) * | 2014-04-08 | 2019-08-07 | Qualcomm Incorporated | Interference cancellation |
WO2015193446A1 (en) * | 2014-06-18 | 2015-12-23 | Sony Corporation | Standardized inter-base station reporting of pilot contamination for improved pilot resource re-use |
CN104270820B (zh) * | 2014-08-04 | 2018-01-19 | 西安交通大学 | 3d大规模mimo系统中联合的垂直波束控制及功率分配方法 |
US20160095088A1 (en) * | 2014-09-26 | 2016-03-31 | Shin-horng WONG | Methods and systems for maintaining downlink overhead for decoding |
CN104320170B (zh) * | 2014-10-29 | 2017-06-06 | 西安交通大学 | 大规模mimo系统中导频污染抑制波束赋形方法 |
US9681324B2 (en) * | 2014-10-30 | 2017-06-13 | Huawei Technologies Co., Ltd. | Method and controller for low-overhead user equipment measurements |
US9985802B2 (en) | 2014-10-31 | 2018-05-29 | Qualcomm Incorporated | Channel estimation enhancements |
EP3222075B1 (en) | 2014-11-20 | 2018-11-28 | British Telecommunications public limited company | Spectrum usage reconfiguration in a cellular communications network |
US20160212749A1 (en) * | 2015-01-19 | 2016-07-21 | Qualcomm Incorporated | Systems and methods for use of multiple modulation and coding schemes in a physical protocol data unit |
US10498518B2 (en) * | 2015-01-29 | 2019-12-03 | Sony Corporation | Apparatus and method |
KR20160118842A (ko) | 2015-04-03 | 2016-10-12 | 한국전자통신연구원 | Mimo를 이용한 통신 방법과 이를 수행할 수 있는 통신 장치 |
CN105721125B (zh) * | 2016-01-21 | 2019-03-08 | 南京邮电大学 | 一种能效最优的多小区大规模mimo系统的导频调度方法 |
US10063396B2 (en) | 2016-02-05 | 2018-08-28 | Hong Kong Applied Science and Technology Research Institute Company Limited | Method and apparatus of topological pilot decontamination for massive MIMO systems |
US10382179B2 (en) | 2016-02-29 | 2019-08-13 | British Telecommunications Public Limited Company | Adapting reference signal density |
US10375701B2 (en) | 2016-02-29 | 2019-08-06 | British Telecommunications Public Limited Company | Controlling adaptive reference signal patterns |
US10491350B2 (en) | 2016-02-29 | 2019-11-26 | British Telecommunications Public Limited Company | Adaptive reference signal patterns |
JP2017183797A (ja) * | 2016-03-28 | 2017-10-05 | Kddi株式会社 | 光通信システムおよび方法 |
US10333593B2 (en) | 2016-05-02 | 2019-06-25 | Amir Keyvan Khandani | Systems and methods of antenna design for full-duplex line of sight transmission |
KR102431635B1 (ko) | 2016-11-04 | 2022-08-12 | 삼성전자 주식회사 | 무선 셀룰라 통신 시스템에서 지연 감소를 위한 적응적 재전송 방법 및 장치 |
US10044537B2 (en) | 2016-12-28 | 2018-08-07 | Intel IP Corporation | Frequency domain pulse position modulation |
US10700766B2 (en) | 2017-04-19 | 2020-06-30 | Amir Keyvan Khandani | Noise cancelling amplify-and-forward (in-band) relay with self-interference cancellation |
US11146395B2 (en) | 2017-10-04 | 2021-10-12 | Amir Keyvan Khandani | Methods for secure authentication |
US11012144B2 (en) | 2018-01-16 | 2021-05-18 | Amir Keyvan Khandani | System and methods for in-band relaying |
CN110086591B (zh) * | 2019-05-14 | 2021-10-22 | 鹰潭泰尔物联网研究中心 | 一种大规模天线系统中的导频污染抑制方法 |
CN111726879B (zh) * | 2020-06-10 | 2023-07-25 | 中南大学 | 一种基于时移导频的固定功率分配方法及系统 |
Family Cites Families (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5548800A (en) | 1994-06-03 | 1996-08-20 | Motorola, Inc. | Satellite telecommunication system with apparatus for protecting radio astronomy and method of using same |
JP3709105B2 (ja) | 1999-07-23 | 2005-10-19 | 株式会社エヌ・ティ・ティ・ドコモ | 測定用チャンネルを用いた他チャンネル通信品質推定システムおよびその通信品質推定方法 |
JP2002077010A (ja) * | 2000-08-29 | 2002-03-15 | Matsushita Electric Ind Co Ltd | 基地局装置および無線受信方法 |
JP4548954B2 (ja) | 2001-03-09 | 2010-09-22 | 株式会社日立国際電気 | 干渉信号除去装置 |
US8611311B2 (en) * | 2001-06-06 | 2013-12-17 | Qualcomm Incorporated | Method and apparatus for canceling pilot interference in a wireless communication system |
KR100426623B1 (ko) * | 2001-12-22 | 2004-04-13 | 한국전자통신연구원 | 인접 기지국 파일럿 신호 제거를 위한 이동통신 단말기의복조 장치 및 그 방법 |
KR100507519B1 (ko) | 2002-12-13 | 2005-08-17 | 한국전자통신연구원 | Ofdma 기반 셀룰러 시스템의 하향링크를 위한 신호구성 방법 및 장치 |
US7016319B2 (en) * | 2003-03-24 | 2006-03-21 | Motorola, Inc. | Method and apparatus for reducing co-channel interference in a communication system |
WO2005015797A1 (ja) | 2003-08-12 | 2005-02-17 | Matsushita Electric Industrial Co., Ltd. | 無線通信装置およびパイロットシンボル伝送方法 |
KR20050031548A (ko) * | 2003-09-30 | 2005-04-06 | 유티스타콤코리아 유한회사 | 순방향 통화채널의 부하에 따른 동적 파일럿 전력 할당 방법 |
EP1542488A1 (en) | 2003-12-12 | 2005-06-15 | Telefonaktiebolaget LM Ericsson (publ) | Method and apparatus for allocating a pilot signal adapted to the channel characteristics |
US7715806B2 (en) * | 2004-10-06 | 2010-05-11 | Broadcom Corporation | Method and system for diversity processing including using dedicated pilot method for closed loop |
ATE527760T1 (de) * | 2005-01-24 | 2011-10-15 | Ntt Docomo Inc | Mobiles kommunikationsendgerät und verfahren zur steuerung der aktivierung eines mehrwege- interferenzunterdrückungsgeräts |
US8064837B2 (en) | 2005-06-16 | 2011-11-22 | Qualcomm Incorporated | Method and apparatus for optimum selection of MIMO and interference cancellation |
JP2007019569A (ja) | 2005-07-05 | 2007-01-25 | Nec Mobiling Ltd | 無線通信システム |
KR101364783B1 (ko) | 2005-07-29 | 2014-02-19 | 파나소닉 주식회사 | 통신 장치, 통신 방법 및 집적 회로 |
JP4655836B2 (ja) | 2005-09-06 | 2011-03-23 | Kddi株式会社 | 鉄道線路に基地局を最適配置するためのセル設計プログラム及び装置 |
US20070071145A1 (en) * | 2005-09-23 | 2007-03-29 | Yona Perets | Method and apparatus to correct channel quality indicator estimation |
JP2009510820A (ja) | 2005-09-27 | 2009-03-12 | ノキア コーポレイション | マルチキャリア伝送のためのパイロット構造 |
CN102647779B (zh) | 2005-10-07 | 2015-04-08 | 诺基亚公司 | 为软频率重用提供公共导频信道的装置和方法 |
PL1952560T3 (pl) | 2005-10-21 | 2014-05-30 | Ericsson Telefon Ab L M | Technika realizacji procedury swobodnego dostępu poprzez interfejs radiowy |
DE602006009750D1 (de) * | 2005-12-03 | 2009-11-26 | Samsung Electronics Co Ltd | Verfahren und Vorrichtung zur Unterdrückung von Nachbarzell-Störsignalen in einem orthogonalen Frequenzteilungs-Mehrfachzugriffssystem |
KR100871259B1 (ko) * | 2006-01-02 | 2008-11-28 | 삼성전자주식회사 | 통신 시스템에서 신호 수신 장치 및 방법 |
US20070165735A1 (en) * | 2006-01-18 | 2007-07-19 | Interdigital Technology Corporation | Method and apparatus for supporting transmit diversity in a receiver |
EP2615766A3 (en) * | 2006-04-28 | 2014-01-22 | Nec Corporation | Pilot signal transmitting method, radio communication system, and apparatus and program used for the same |
JP4447575B2 (ja) * | 2006-05-01 | 2010-04-07 | 株式会社エヌ・ティ・ティ・ドコモ | 送信装置及び送信方法 |
US8085696B2 (en) * | 2006-07-14 | 2011-12-27 | Airvana Networks Solutions, Inc. | Dynamic modification of route update protocols |
KR20080020143A (ko) * | 2006-08-30 | 2008-03-05 | 삼성전자주식회사 | 직교 주파수 분할 다중 시스템에서 데이터 채널을송수신하는 장치 및 방법 |
CN101013915A (zh) * | 2007-01-17 | 2007-08-08 | 倪明 | Td-scdma系统消除同频干扰的方法 |
CN101047401A (zh) * | 2007-04-26 | 2007-10-03 | 北京北方烽火科技有限公司 | 一种用于导频消除和载干比估计的方法 |
US8897269B2 (en) | 2008-01-30 | 2014-11-25 | Qualcomm Incorporated | Method and apparatus for mitigating pilot pollution in a wireless network |
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