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公开(公告)号:BRPI0716553A2
公开(公告)日:2012-12-18
申请号:BRPI0716553
申请日:2007-09-05
Applicant: QUALCOMM INC
Inventor: BORRAN MOHAMMAD J , JI TINGFANG , KHANDEKAR AAMOD , GOROKHOV ALEXEI , KANNAN ARU CHENDAMARI , BHUSHAN NAGA , ZHANG XIN
IPC: H04B7/005
Abstract: Systems and methodologies are described that provide techniques for performing adjustments for delta-based power control and interference management in a wireless communication system. A terminal can utilize one or more delta-based power control techniques described herein upon engaging in a reverse link transmission after a predetermined period of silence or after receiving indications of interference from neighboring access points. A delta value can be computed through open-loop projection, based on which transmission resources such as bandwidth and/or transmit power can be increased or decreased to manage interference caused by the terminal. A delta value, other feedback from the terminal, and/or indications of interference caused by the terminal can also be communicated as feedback to a serving access point to allow the access point to assign transmission resources for the terminal.
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公开(公告)号:BRPI0713707A2
公开(公告)日:2012-10-30
申请号:BRPI0713707
申请日:2007-06-21
Applicant: QUALCOMM INC
Inventor: GOROKHOV ALEXEI , KHANDEKAR AAMOD , PALANKI RAVI , PRAKASH RAJAT
Abstract: Methods and apparatus for assigning and using resources corresponding to discontinuous portions of bandwidth are described. A single assignment may be used to assign multiple disjoint portions of bandwidth to be used by a wireless terminal, e.g., at the same time, as an uplink or downlink band. Different portions of bandwidth allocated to a terminal may have different numbers and/or locations of guard subcarriers with relevant guard subcarrier information being communicated to the wireless terminal in a broadcast signal or being determined from stored information. The disjoint portions of bandwidth allocated for use to a terminal may be separated by a carrier band, e.g., 1.25 MHz or more, which is not available for use, e.g., because it is owned by another service provider. Some embodiments are implemented using OFDM signals wherein a wireless terminal may generate or receive an OFDM symbol including subcarriers, e.g., tones corresponding to the different discontinuous portions but not the bandwidth separating the discontinuous portions.
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公开(公告)号:AU2008349497B2
公开(公告)日:2012-08-09
申请号:AU2008349497
申请日:2008-09-04
Applicant: QUALCOMM INC
Inventor: SAMPATH ASHWIN , PALANKI RAVI , BHUSHAN NAGA , AGASHE PARAG A , AGRAWAL AVNEESH , KHANDEKAR AAMOD , GOROKHOV ALEXEI , GUPTA RAJARSHI , ULUPINAR FATIH , HORN GAVIN B , PRAKASH RAJAT
IPC: H04W68/12
Abstract: Signaling-only access may be established with an access node (104) under certain circumstances such as, for example, upon determining that a node (102) is not authorized for data access at the access node (102). A node (104) that is not authorized for data access at an access node (104) may still be paged by the access node (104) through the use of signaling-only access. In this way, transmissions by the access node (104) may not interfere with the reception of pages at the node (302). A first node may be selected for providing paging (102) while a second node (106) is selected for access (304) under certain circumstances such as, for example, upon determining that the second node provides more desirable service than the first node.
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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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65.
公开(公告)号:CA2600783C
公开(公告)日:2012-07-17
申请号:CA2600783
申请日:2006-03-09
Applicant: QUALCOMM INC
Inventor: SAMPATH HEMANTH , KADOUS TAMER , GOROKHOV ALEXEI , GORE DHANANJAY ASHOK
Abstract: Methods and apparatuses are disclosed that determine a type of channel information based upon whether a wireless device is scheduled to receive symbols. In addition, a determination may be as to a number of hop periods to determine the type of channel information. Further, a distance between hop regions may be utilized to determine a type of channel information.
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公开(公告)号:UA98635C2
公开(公告)日:2012-06-11
申请号:UAA200908224
申请日:2008-01-05
Applicant: QUALCOMM INC
Inventor: KHANDEKAR AAMOD , GOROKHOV ALEXEI , BORRAN MOHAMMAD J , PRAKASH RAJAT
Abstract: Описаніспособипередачіпілот-сигналуі данихтрафіку. Водномуаспекті, терміналможескремблюватисвійпілот-сигналзадопомогоюпослідовностіскремблювання, сформованоїнаосновінаборустатичнихі динамічнихпараметрів. Статичний(і) параметр(и) має(ють) фіксованезначеннядлявсьогосеансузв'язкудлятермінала. Динамічний(і) параметр(и) має(ють) зміннезначенняпідчассеансузв'язку. Терміналможеформуватипослідовністьскремблюваннязадопомогоюхешуваннянаборупараметрів, щободержуватипочатковечисло, таініціалізації PN-генераторазадопомогоюпочатковогочисла. Терміналпотімможеформуватипілот-сигналнаосновіпослідовностіскремблювання. Віншомуаспекті, терміналможевикористовуватирізніпослідовностіскремблюваннядляпілот-сигналуі данихтрафіку. Першапослідовністьскремблюванняможебутисформовананаосновіпершогонаборупараметріві використанадляформуванняпілот-сигналу. Другапослідовністьскремблюванняможебутисформовананаосновідругогонаборупараметріві використанадляскремблюванняданихтрафіку.
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公开(公告)号:CA2600467C
公开(公告)日:2012-04-17
申请号:CA2600467
申请日:2006-03-09
Applicant: QUALCOMM INC
Inventor: SAMPATH HEMANTH , KADOUS TAMER , GOROKHOV ALEXEI , GORE DHANANJAY ASHOK
Abstract: Methods and apparatuses are disclosed that utilize information from less than all transmission paths from a transmitter to form beamforming weights for transmission. In addition, methods and apparatuses are disclosed that utilize channel information, such as CQI, eigenbeam weights, and/or channel estimates, to form beamforming weights.
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公开(公告)号:AT550837T
公开(公告)日:2012-04-15
申请号:AT06826844
申请日:2006-10-27
Applicant: QUALCOMM INC
Inventor: WANG JIBING , BARRIAC GWENDOLYN D , GOROKHOV ALEXEI , SAMPATH HEMANTH , KADOUS TAMER
Abstract: Systems and methodologies are described that facilitate estimating transmit covariance from evaluation of a channel (e.g., forward link channel, reverse link channel, . . . ) to be utilized in linear precoding for multiple-input multiple-output (MIMO) wireless communication systems. Predefined codebooks that include any number of precoding matrices may be modified based upon transmit covariance estimations to yield improved precoding performance. Further, channel related feedback may be generated and analyzed by utilizing the modified codebooks.
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公开(公告)号:BRPI0713135A2
公开(公告)日:2012-03-27
申请号:BRPI0713135
申请日:2007-06-25
Applicant: QUALCOMM INC
Inventor: GOROKHOV ALEXEI , KHANDEKAR AAMOD , BORRAN MOHAMMAD J , PRAKASH RAJAT
IPC: H04L1/00
Abstract: Various methods and systems receiving information from an access point over a wireless link in order to reduce processing and/or transmission overhead are disclosed. Such methods and systems may include the processing of a received packet using a descrambling operation on at least a portion of the packet's information based on a MAC-ID associated with an access terminal to produce at least a first processed packet, and determining whether the received packet is targeted to the access terminal based on the first processed packet.
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70.
公开(公告)号:ES2375091T3
公开(公告)日:2012-02-24
申请号:ES06839602
申请日:2006-10-27
Applicant: QUALCOMM INC
Inventor: GOROKHOV ALEXEI , KHANDEKAR AAMOD , TEAGUE EDWARD HARRISON , SAMPATH HEMANTH
IPC: H04B7/26
Abstract: Un aparato que comprende: un medio para determinar las tramas en las cuales se envía un segmento de control; y para cada trama en la cual se envía el segmento de control, un medio para procesar la señalización (620) para canales de señalización, si los hubiera, a enviar en el segmento de control en la trama, y un medio para asociar (654) la señalización procesada a una región de tiempo y frecuencia usada para el segmento de control en la trama, en donde la señalización de múltiples terminales (120) se envía en el segmento de control con el esquema de acceso múltiple por división de código, CDMA, y en donde la región de tiempo y frecuencia comprende símbolos del multiplexado ortogonal por división de frecuencia, OFDM.
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