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公开(公告)号：FR2734108A1
公开(公告)日：1996-11-15
申请号：FR9605090
申请日：1996-04-23
Applicant: MOTOROLA INC
Inventor： GHOSH AMITAVA , REED JOHN DOUGLAS , BUFORD KEVIN ANDREW
Abstract: A method and apparatus for determining the location of a communication unit in a CDMA system includes in a first embodiment, sending a location request via a spread spectrum signal to the subscriber (140), and receiving in return a subscriber signal including a response message showing a receive time of a particular symbol of the base's spreading sequence and a transmit time of a particular symbol of the subscriber's spreading sequence. The base (130), along with other receiving base(s) (140), also receives a predetermined symbol of the subscriber spreading sequence, and each determines a respective receive time of the predetermined symbol. The received information is then processed, along with known base location and delay information, to determine the subscriber location. If insufficient number of bases are capable of communicating with the subscriber, for example due to high loading/interference, auxiliary bases (121) are also provided for receiving from or transmitting to the subscriber.
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公开(公告)号：CA2192579A1
公开(公告)日：1996-11-14
申请号：CA2192579
申请日：1996-03-21
Applicant: MOTOROLA INC
Inventor： GHOSH AMITAVA , REED JOHN DOUGLAS , ROZANSKI WALTER JOSEPH JR , BUFORD KEVIN ANDREW
Abstract: A method and apparatus for determining the location of a communication unit in a CDMA system includes in a first embodiment, sending a location request via a spread spectrum signal to the subscriber (140), and receiving in return a subscriber signal including a response message showing a receive time of a particular symbol of the base's spreading sequence and a transmit time of a particular symbol of the subscriber's spreading sequence. The base (130), along with other receiving base(s) (140), also receives a predetermined symbol of the subscriber spreading sequence, and each determines a respective receive time of the predetermined symbol. The received information is then processed, along with known base location and delay information, to determine the subscriber location. If insufficient number of bases are capable of communicating with the subscriber, for example due to high loading/interference, auxiliary bases (121) are also provided for receiving from or transmitting to the subscriber.
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公开(公告)号：BRPI0307204B1
公开(公告)日：2015-12-01
申请号：BR0307204
申请日：2003-01-21
Applicant: MOTOROLA MOBILITY INC , MOTOROLA SOLUTIONS INC , MOTOROLA INC
Inventor： GHOSH AMITAVA , STEWART KENNETH A , VILLION MATHIEU , BUCKLEY MICHAEL E , BACHU RAJA S , RATASUK RAPEEPAT
Abstract: "redundância incremental com base em código turbo aprimorado". uma redundância incremental aprimorada com base em código turbo inclui uma primeira etapa (102) de perfurar um fluxo de dados para uma primeira transmissão e fornecer um conjunto de primeira seção de treliça não perfurada. uma etapa seguinte (104) inclui perfurar um fluxo de dados para uma segunda transmissão para fornecer um conjunto de segundas seções de treliça não perfuradas. a etapa seguinte (106) inclui a redundância incremental combinando a primeira e a segunda transmissões das treliças para fornecer a primeira e segunda seções de treliça não perfuradas e não adjacentes. a disposição acima resulta em uma distribuição uniforme de bits perfurados e não perfurados para fornecer erros mais baixos.
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公开(公告)号：ES2464447T3
公开(公告)日：2014-06-02
申请号：ES06803446
申请日：2006-09-13
Applicant: MOTOROLA INC , MOTOROLA MOBILITY LLC
Inventor： KUCHIBHOTLA RAVI , CLASSON BRIAN K , CUDAK MARK C , GHOSH AMITAVA , LOVE ROBERT T , STEWART KENNETH A , SUN YAKUN , XIAO WEIMIN
Abstract: Un método en una entidad (112) de infraestructura de comunicación inalámbrica donde se comunica información en una secuencia de tramas (210, 220, 230), comprendiendo cada trama múltiples sub-tramas (212, 232, 300), comprendiendo el método agrupar al menos dos terminales (102) de comunicación inalámbrica en un primer grupo, estando el método caracterizado por asignar el primer grupo a menos de todas las sub-tramas que constituyen una primera trama, asignar un primer canal de control de asignación de recursos de radio de al menos una sub-trama asignada al primer grupo, el primer canal de control de asignación de recursos de radio incluye información de asignación de recursos de radio que identifica al menos un terminal (102) al que se ha asignado un recurso de radio; asignar un recurso de radio predefinido para el al menos un terminal (102) en base un orden en el que el terminal se identifica.
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公开(公告)号：DE602004027505D1
公开(公告)日：2010-07-15
申请号：DE602004027505
申请日：2004-07-28
Applicant: MOTOROLA INC
Inventor： FABIEN JEAN-AICARD , GHOSH AMITAVA , RATASUK RAPEEPAT
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Patent Agency Ranking
公开(公告)号：GB2465926A
公开(公告)日：2010-06-09
申请号：GB201004967
申请日：2006-06-30
Applicant: MOTOROLA INC
Inventor： WHINNETT NICK W , XIAO WEIMIN , WANG FAN , GHOSH AMITAVA , RATASUK RAPEEPAT
Abstract: A method to determine a scheduling priority value for a user data connection, the method comprising: determining an instantaneous data rate achievable for the user data connection based on a channel quality; determining a normalized average throughput for the user data connection, the normalized average throughput being a first ratio of an average throughput of the user data connection, with respect to a nominal best effort data rate assigned to the user data connection; calculating the scheduling priority value being a second ratio of the instantaneous data rate controlled by a first mathematical index, with the normalized average throughput controlled by a second mathematical index, the first mathematical index and the second mathematical index being used to control a scheduling fairness.
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公开(公告)号：DE60330753D1
公开(公告)日：2010-02-11
申请号：DE60330753
申请日：2003-01-21
Applicant: MOTOROLA INC
Inventor： BUCKLEY MICHAEL E , BACHU RAJA S , GHOSH AMITAVA , RATASUK RAPEEPAT , STEWART KENNETH A , VILLION MATHIEU
Abstract: An improved turbo code based incremental redundancy includes a first step of puncturing a data stream for a first transmission to provide a set of first unpunctured trellis sections. A next step includes puncturing a data stream for a second transmission to provide a set of second unpunctured trellis sections. A next step includes incremental redundancy combining the first and second transmissions of the trellises to provide non-adjacent first and second unpunctured trellis sections. The above arrangement results in a uniform distribution of punctured and unpunctured bits to provide lower errors.
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128.发明专利
公开(公告)号：GB2444001A
公开(公告)日：2008-05-21
申请号：GB0804399
申请日：2006-06-30
Applicant: MOTOROLA INC
Inventor： WANG FAN , GHOSH AMITAVA , RATASUK RAPEEPAT , WHINNETT NICK W , XIAO WEIMIN
Abstract: A method to provide a nominal best effort data rate based on a Quality of Service (QoS) requirement of a user data connection, the method comprising assigning (105) a service priority based on the QoS requirement, and assigning (110) the nominal best effort data rate for the service priority using a predetermined function. Further, it comprises of a method to determine a scheduling priority value for a user data connection by providing a relative fairness. Furthermore, the method comprises a method to satisfy a delay requirement for a delay sensitive data connection through a scheduling.
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公开(公告)号：DE60035291T2
公开(公告)日：2008-02-07
申请号：DE60035291
申请日：2000-12-28
Applicant: MOTOROLA INC
Inventor： GHOSH AMITAVA , CLASSON BRIAN K , JALLOUL LOUAY A , CUDAK MARK C
Abstract: A method in a communication system ( 100 ) includes transmitting from a source user ( 101 ) a first data packet ( 111 ) over a first time frame ( 121 ) having a finite time period ( 131 ), transmitting from source user ( 101 ) a second data packet ( 112 ) over a second time frame ( 122 ) immediately subsequent to first time frame ( 121 ), detecting an acknowledgment of acceptable reception of data packet associated with either first or said second data packets ( 111 and 112 ), repeating transmission of first and second data packets ( 111 and 112 ) in a sequence of first and second time frames ( 121 and 122 ) in a time frame sequence ( 190 ) until the detection.
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公开(公告)号：DE602004008786D1
公开(公告)日：2007-10-18
申请号：DE602004008786
申请日：2004-06-28
Applicant: MOTOROLA INC
Inventor： WHINNETT NICHOLAS , GHOSH AMITAVA , LOVE ROBERT T , RATASUK RAPEEPAT
IPC: H04B7/005
Abstract: The present invention relates to methods of operation of a communication device and to corresponding communication devices. In particular the invention relates to a first method of operation of a communication device, wherein some pilot bits associated with data bits are transmitted with a power at least partly dependent on the data rate at which the data bits are transmitted. At the base station, power control is carried out only on pilot bits with constant power, whereas channel estimation is carried out on all pilot bits. The invention also relates to a second method of operation of a communication device wherein all pilot bits associated with data bits are transmitted with one of a plurality of powers, at least partly dependent on the data rate at which the data bits are transmitted. At the base station a power control process compares the received signal with a plurality of thresholds, and sends a power control signal to the communication device based on the result of the comparison.
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