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公开(公告)号:CA2601867C
公开(公告)日:2012-11-27
申请号:CA2601867
申请日:2006-03-15
Applicant: QUALCOMM INC
Inventor: MESE MURAT , SUTIVONG ARAK
IPC: H04B7/005
Abstract: Techniques for adjusting transmit power to mitigate both intra-sector interference to a serving base station and inter-sector interference to neighbor base stations are described. This may be done by combining interference information from multiple base stations.
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公开(公告)号:CA2590970C
公开(公告)日:2012-08-07
申请号:CA2590970
申请日:2005-12-22
Applicant: QUALCOMM INC
Inventor: AGRAWAL AVNEESH , KHANDEKAR AAMOD , SUTIVONG ARAK , GOROKHOV ALEXEI
IPC: H04B7/26
Abstract: A method for receiving an indication to apply a first modulation scheme to modulate one or more segments of the first portion; determining a first segment set, having at least one segment of the first portion for applying said first modulation scheme; modulating said first segment set of the first portion using said first modulation scheme; and modulating one or more segments of the second portion using a second scheme, different from first modulation scheme.
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公开(公告)号:CA2601186C
公开(公告)日:2012-07-03
申请号:CA2601186
申请日:2006-03-15
Applicant: QUALCOMM INC
Inventor: MESE MURAT , SUTIVONG ARAK , JULIAN DAVID JONATHAN
Abstract: For interference control, a sector m estimates interference observed from terminals in neighbor sectors and obtains an interference estimate. Sector m may generate an over-the-air (OTA) other-sector interference (OSI) report and/or an inter-sector (IS) OSI report based on the interference estimate. Sector m may broadcast the OTA OSI report to the terminals in the neighbor sectors. These terminals may adjust their transmit powers based on the OTA OSI report. Sector m may send the IS OSI report to the neighbor sectors, receive IS OSI reports from the neighbor sectors, and regulate data transmissions for terminals in sector m based on the received IS OSI reports. Sector m may control admission of terminals to sector m, de-assign admitted terminals, schedule terminals in sector m in a manner to reduce interference to the neighbor sectors, and/or assign the terminals in sector m with traffic channels that cause less interference to the neighbor sectors.
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公开(公告)号:HK1151664A1
公开(公告)日:2012-02-03
申请号:HK11105492
申请日:2008-08-07
Applicant: QUALCOMM INC
Inventor: MESE MURAT , SUTIVONG ARAK , JULIAN DAVID JONATHAN
Abstract: For interference control, a sector m estimates interference observed from terminals in neighbor sectors and obtains an interference estimate. Sector m may generate an over-the-air (OTA) other-sector interference (OSI) report and/or an inter-sector (IS) OSI report based on the interference estimate. Sector m may broadcast the OTA OSI report to the terminals in the neighbor sectors. These terminals may adjust their transmit powers based on the OTA OSI report. Sector m may send the IS OSI report to the neighbor sectors, receive IS OSI reports from the neighbor sectors, and regulate data transmissions for terminals in sector m based on the received IS OSI reports. Sector m may control admission of terminals to sector m, de-assign admitted terminals, schedule terminals in sector m in a manner to reduce interference to the neighbor sectors, and/or assign the terminals in sector m with traffic channels that cause less interference to the neighbor sectors.
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公开(公告)号:UA94402C2
公开(公告)日:2011-05-10
申请号:UAA200711352
申请日:2006-03-15
Applicant: QUALCOMM INC
Inventor: MESE MURAT , SUTIVONG ARAK , JULIAN DEVID JONATAN , ZI TINFAN
Abstract: Дляуправленияпомехой, сектор m оцениваетпомеху, котораяпринимаетсяоттерминаловв соседнихсекторах, иполучаетоценкупомехи. Сектор m можетгенерироватьотчетдляпередачис помощьюрадиосвязи (ТА) опомехеотдругогосектора (OSI) и/илимежсекторной (IS) отчет OSI наосновеоценкипомехи. Сектор m можетпередаватьотчет IS OSI всоседниесектора, приниматьотчеты IS OSI отсоседнихсекторови регулироватьпередачиданныхдлятерминаловв секторе m наосновепринятыхотчетов IS OSI. Сектор m можетуправлятьдоступомтерминаловв сектор m, отменятьназначениедопущенныхтерминалов, осуществлятьдиспетчеризациютерминаловв секторе m такимобразом, чтобыснизитьпомехудлясоседнихсекторов, и/илиназначатьтерминаламв секторе m каналытрафика, которыеобусловливаютуменьшениепрепятствиядлясоседнихсекторов.
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公开(公告)号:CA2571106C
公开(公告)日:2011-05-03
申请号:CA2571106
申请日:2005-06-14
Applicant: QUALCOMM INC
Inventor: SUTIVONG ARAK , AGRAWAL AVNEESH
Abstract: For quasi-orthogonal multiplexing in an OFDMA system, multiple (M) sets of traffic channels are defined for each base station. The traffic channels in each set are orthogonal to one another and may be pseudo-random with respect to the traffic channels in each of the other sets. The minimum number of sets of traffic channels (L) is used to support a given number of (U) terminals selected for data transmission, where and . Each terminal transmits data and pilot symbols on its traffic channel. A base station receives data transmissions from all terminals and may perform receiver spatial processing on received symbols with spatial filter matrices to obtain detected data symbols. The spatial filter matrix for each subband may be derived based on channel response estimates for all terminals transmitting on that subband.
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公开(公告)号:RU2414074C2
公开(公告)日:2011-03-10
申请号:RU2008106752
申请日:2006-07-24
Applicant: QUALCOMM INC
Inventor: SAMBKHVANI SHARAD DIPEHK , GORE DKHANANDZHAJ ASHOK , AGRAVAL AVNISH , SUTIVONG ARAK , GOROKHOV ALEKSEJ
IPC: H04J13/00
Abstract: Настоящееизобретениеотноситсяк областибеспроводнойсвязи. Техническийрезультатданногоизобретениязаключаетсяв увеличениипропускнойспособностив беспроводныхсетяхсвязи WCDMA сограниченнымикодами (например, TDD, FDD, …). Согласноизоберетениюбольшеекодовоепространствоможетопределятьсяпосредствомвведениямногочисленныхкластеровкодовв сектор, приэтомкаждыйкластеримеетуникальныйкодскремблирования. Кодыв кластеремогутиметьортогональныепоследовательностиУолша, которыемогутназначатьсяпользовательскимустройствамдляоблегчениявзаимодействияпобеспроводнойсетии могутперекрыватьсяс кодамив другомкластере. Уникальныйкодскремблирования, назначаемыйкаждомукластеру, можетгарантировать, чтодвойныепоследовательностиУолшав другомкластерев томжесамомсекторепоявятсякаккодыпсевдошума. 7 н. и 28 з.п. ф-лы, 9 ил.
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公开(公告)号:PL1774822T3
公开(公告)日:2011-02-28
申请号:PL05769249
申请日:2005-07-11
Applicant: QUALCOMM INC
Inventor: SUTIVONG ARAK , TEAGUE EDWARD HARRISON , GOROKHOV ALEXEI
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公开(公告)号:NZ561493A
公开(公告)日:2010-11-26
申请号:NZ56149306
申请日:2006-03-15
Applicant: QUALCOMM INC
Inventor: MESE MURAT , SUTIVONG ARAK , JULIAN DAVID JONATHAN
Abstract: A method for interference control at a sector is disclosed. The method comprises: obtaining a measured interference that represents an estimate of interference observed at the sector due to transmissions from terminals in other sectors; generating an interference report based on the measured interference; and broadcasting the interference report to the terminals in the other sectors. A method for interference control at a terminal is also disclosed. The method comprises: receiving an interference report that is broadcast by a neighbour sector; and adjusting transmit power of the terminal based on the interference report.
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公开(公告)号:BRPI0611780A2
公开(公告)日:2010-09-28
申请号:BRPI0611780
申请日:2006-06-16
Applicant: QUALCOMM INC
Inventor: DONG MIN , JI TINGFANG , GORE DHANANJAY ASHOK , GOROKHOV ALEXEI , SUTIVONG ARAK
Abstract: Apparatuses and methodologies are described that increase system capacity in a multi-access wireless communication system. Spatial dimensions may be utilized to distinguish between multiple signals utilizing the same channel and thereby increase system capacity. Signals may be separated by applying beamforming weights based upon the spatial signature of the user device-base station pair. Grouping spatially orthogonal or disparate user devices on the same channel facilitates separation of signals and maximization of user device throughput performance. User devices may be reassigned to groups periodically or based upon changes in the spatial relationships between the user devices and the base station.
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