UA94204C2 - Pilot-signal for use in multi-sector cells - Google Patents

Pilot-signal for use in multi-sector cells


Publication number
UA94204C2 UAA201010406A UAA201010406A UA94204C2 UA 94204 C2 UA94204 C2 UA 94204C2 UA A201010406 A UAA201010406 A UA A201010406A UA A201010406 A UAA201010406 A UA A201010406A UA 94204 C2 UA94204 C2 UA 94204C2
Prior art keywords
Prior art date
Application number
Other languages
Russian (ru)
Ukrainian (uk)
Раджив ЛАРОЯ
Джон Л. Фен
Цзюньи ЛИ
Original Assignee
Квелкомм Инкорпорейтед
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to US44972903P priority Critical
Application filed by Квелкомм Инкорпорейтед filed Critical Квелкомм Инкорпорейтед
Publication of UA94204C2 publication Critical patent/UA94204C2/en



    • Y02B60/50


Pilot signal transmission sequences and methods are described for use in a multi-sector cell. Pilots in different sectors i are transmitted at different known power levels. In adjacent sectors a pilot is transmitted while no pilot is transmitted in the adjoining sector. This represents transmission of a NULL pilot signal. A cell NULL is also supported in which NULL pilots are transmitted in each sector of a cell at the same time. Multiple pilot signal measurements are made. At least two channel quality indicator values are generated from measurements corresponding to at least two pilot signals of different power levels. The two values are transmitted back to the base station which uses both values to determine the transmit power required to achieve a desired SNR at the wireless terminal. The wireless terminal also reports information indicating its location to a sector boundary.
UAA201010406A 2003-02-24 2004-02-20 Pilot-signal for use in multi-sector cells UA94204C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US44972903P true 2003-02-24 2003-02-24

Publications (1)

Publication Number Publication Date
UA94204C2 true UA94204C2 (en) 2011-04-11



Family Applications (2)

Application Number Title Priority Date Filing Date
UAA200508984A UA94018C2 (en) 2003-02-24 2004-02-20 Pilot-signal for use in multi-sector cell
UAA201010406A UA94204C2 (en) 2003-02-24 2004-02-20 Pilot-signal for use in multi-sector cells

Family Applications Before (1)

Application Number Title Priority Date Filing Date
UAA200508984A UA94018C2 (en) 2003-02-24 2004-02-20 Pilot-signal for use in multi-sector cell

Country Status (2)

Country Link
CN (2) CN1871862B (en)
UA (2) UA94018C2 (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4998680B2 (en) * 2006-06-19 2012-08-15 日本電気株式会社 Pilot resource allocation method, channel quality measurement method and base station in mobile communication system
US9179469B2 (en) * 2006-10-24 2015-11-03 Qualcomm Incorporated Enabling resource partitioning for wireless communication systems
CN101174851B (en) * 2006-11-03 2012-11-21 华为技术有限公司 Method and device for detecting and identifying interference due to adjacent station
KR101401965B1 (en) 2007-05-25 2014-06-02 삼성전자주식회사 Method for measuring a state of a plurality of channels and apparatus, Method for selecting idle channel and apparatus therefor
JP4968339B2 (en) * 2007-12-28 2012-07-04 日本電気株式会社 Signal processing system and method for multi-sector wireless communication system
US8559879B2 (en) * 2008-04-22 2013-10-15 Qualcomm Incorporated Null pilots for interference estimation in a wireless communication network
US8521206B2 (en) 2008-04-22 2013-08-27 Qualcomm Incorporated Interference management with reduce interference requests and interference indicators
JP5198145B2 (en) * 2008-05-19 2013-05-15 株式会社エヌ・ティ・ティ・ドコモ Base station apparatus, terminal apparatus and method
US8417252B2 (en) * 2008-10-24 2013-04-09 Qualcomm Incorporated Method and apparatus for interference reporting in a N-MIMO communication system
KR101549572B1 (en) * 2008-11-25 2015-09-02 삼성전자주식회사 Method and apparatus for transmission power control of physical control channel for cqi in mobile telecommunication system supporting multi-cell hsdpa
US8817769B2 (en) 2009-01-26 2014-08-26 Qualcomm Incorporated Power decision pilot for wireless communication
CN101841386B (en) * 2009-03-20 2014-11-05 中兴通讯股份有限公司 Method and system for feeding back channel quality indications
CN102215182B (en) * 2010-04-02 2015-01-21 电信科学技术研究院 Pilot and data transmission and reception processing method and equipment
CN105406950A (en) * 2014-08-07 2016-03-16 索尼公司 Device and method for wireless communication, electronic equipment, and method for electronic equipment
US10028284B2 (en) * 2014-08-14 2018-07-17 Qualcomm Incorporated Systems and methods for improved communication efficiency in wireless networks

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2200518C (en) * 1996-03-21 2000-11-14 Etsuhiro Nakano Cdma mobile communication scheme with effective use of sector configuration
US6035000A (en) * 1996-04-19 2000-03-07 Amati Communications Corporation Mitigating radio frequency interference in multi-carrier transmission systems
US5771461A (en) * 1996-06-28 1998-06-23 Motorola, Inc. Method and apparatus for power control of a first channel based on a signal quality of a second channel
US5933421A (en) * 1997-02-06 1999-08-03 At&T Wireless Services Inc. Method for frequency division duplex communications
US5867478A (en) * 1997-06-20 1999-02-02 Motorola, Inc. Synchronous coherent orthogonal frequency division multiplexing system, method, software and device
SE9702408L (en) * 1997-06-24 1998-12-25 Ericsson Telefon Ab L M Sectorization of a cellular CDMA system
EP1720277B1 (en) * 2000-07-05 2017-09-27 Sony Deutschland Gmbh Pilot pattern design for multiple antennas in an OFDM system

Also Published As

Publication number Publication date
CN1778058B (en) 2010-11-10
CN1778058A (en) 2006-05-24
CN1871862B (en) 2012-03-21
UA94018C2 (en) 2011-04-11
CN1871862A (en) 2006-11-29

Similar Documents

Publication Publication Date Title
WO2004077685A3 (en) Pilot signals for use in multi-sector cells
UA94204C2 (en) Pilot-signal for use in multi-sector cells
RU2006140237A (en) Methods and device for transmission using multiple carriers
WO2006044718A3 (en) Methods and apparatus for determining, communicating and using information which can be used for interference control purposes
RU2420918C2 (en) Sending pilot signals over secondary channels for improved coverage and handover in cellular communication
WO2006044291A3 (en) Wirelless terminal location using apparatus and methods employing carrier diversity
RU2496246C2 (en) Method and apparatus for transmitting position reference signal
TW200708143A (en) Cell selection in broadcast and multicast communication environments
SG155890A1 (en) Separate forward-link and reverse-link handoff candidate selection, rl- handoff based on feedback like e.g. power up/down-commands
WO2007075851A3 (en) Methods and apparatus for reporting and/or using control information
CN101116264B (en) Transmission rate measurement
TW200620872A (en) Wireless communication system with improved broadcast coverage
WO2004019538A3 (en) Syncrhonization techniques for a wireless system
CA2310655A1 (en) Method and apparatus for determining hand-off candidates in a communication system
MX2007010612A (en) Method for inter-cell interference mitigation for a mobile communication system .
WO2011074807A3 (en) Systems and methods for transmitting channel quality information in wireless communication systems
MY150116A (en) Soft handoff with interference caancellation in a wireless frequency hopping communication system
WO2005039094A3 (en) Methods and apparatus of improving inter-sector and/or inter-cell handoffs in a multi-carrier wireless communications system
EP2222001A3 (en) Mobile user terminal, mobile communication system, base station, and communication method
NZ577826A (en) Network-controlled e-utran neighbour cell measurements
RU2006132497A (en) Method and device for transmission / receiving of channel quality information in a system using multiplexing scheme with orthogonal frequency separation of channels
WO2008111809A3 (en) Methods for performing an adaptive modulation and coding scheme in mobile communication system
RU2006140246A (en) Methods and device for step-by-step system access