МУЛЬТИПЛЕКСИРОВАНИЕ ИНФОРМАЦИИ ОБРАТНОЙ СВЯЗИ В ОБРАТНОЙ ЛИНИИ СВЯЗИ ДЛЯ МНОЖЕСТВА ЧАСТОТ ПРЯМОЙ ЛИНИИ СВЯЗИ

    公开(公告)号:RU2384944C2

    公开(公告)日:2010-03-20

    申请号:RU2007141405

    申请日:2006-04-10

    Applicant: QUALCOMM INC

    Abstract: Изобретениеотноситсяк средствамсвязи. Настоящаяпатентнаязаявкасодержитспособи устройстводлямультиплексированияканаловобратнойсвязив обратнойлиниисвязинаоднойчастотеобратнойлиниисвязис поддержкоймножествачастотпрямойлиниисвязидляканаловпрямойлиниисвязи, содержащиеназначениеподвижнойстанциичастотыобратнойлиниисвязи, назначениеоднойилиболеечастотпрямойлиниисвязидлячастотыобратнойлиниисвязии мультиплексированиес кодовымразделениемканаловмножестваканаловобратнойсвязив обратнойлиниисвязиначастотеобратнойлиниисвязи. Техническимрезультатомявляетсяиспользованиемножествачастотдляканаловпередачи. 3 н. и 24 з.п. ф-лы, 8 ил.

    24.
    发明专利
    未知

    公开(公告)号:AT446517T

    公开(公告)日:2009-11-15

    申请号:AT99968718

    申请日:1999-09-02

    Applicant: QUALCOMM INC

    Abstract: Method and apparatus providing enhanced sensitivity for GPS receivers (400, 500, 600, 700) by allowing coherent integration of a correlation over several code periods of a GPS signal in one embodiment, and by performing a time to frequency domain conversion to the output from a correlation processor (507) in a second embodiment. In the case in which coherent integration is performed over several code periods, advantage is taken of the fact that CDMA cellular telephone base stations transmit information that allows the receiver to determine GPS time before beginning a GPS signal acquisition process. The integration can be expanded to include code periods from more than one bit period, if the GPS receiver (400, 500, 600, 700) takes advantage of the fact that known bit patterns are transmitted at particular times within the transmission from a GPS satellite. If no base station is within range, then the output from a correlator (507) that integrates a correlation over one code period is used to generate values that are input to a discrete time domain to frequency domain transform processor (511). The output from the transform processor (511) will indicate the presence of a signal from a particular satellite and the offset between locally generated signal and the received GPS signal.

    СПОСОБ И УСТРОЙСТВО ДЛЯ ВЕЩАТЕЛЬНЫХ УСЛУГ В СИСТЕМЕ СВЯЗИ

    公开(公告)号:RU2355119C2

    公开(公告)日:2009-05-10

    申请号:RU2005124509

    申请日:2003-12-23

    Applicant: QUALCOMM INC

    Abstract: Изобретениеотноситсяк системамбеспроводнойсвязи. Предложеныспособ, устройствои системадляэффективногоиспользованияресурсовсвязидляобеспечениявещательныхуслугв системесвязи, чтоявляетсятехническимрезультатом. Приемникпринимаетпервуюидентификациюконтроллеравещанияизпервойбазовойстанциии вторуюидентификациюконтроллеравещанияизвторойбазовойстанции. Контроллер, соединенныйс приемником, определяет, ассоциированылиперваяи втораяидентификацииконтроллеравещанияс использованиемобщегонаборапараметроввещания. Когдаперваяи втораяидентификацииконтроллеравещаниянеассоциированыс использованиемобщегонаборапараметроввещания, передатчикпередаетзапроснапередачуновогонаборапараметроввещания. Послеприемановогонаборапараметроввещанияприемникиспользуетдляприемавещательныхуслугновыйнаборпараметроввещания. 4 н. и 12 з.п. ф-лы, 6 ил.

    26.
    发明专利
    未知

    公开(公告)号:BR0309029A

    公开(公告)日:2007-01-09

    申请号:BR0309029

    申请日:2003-04-04

    Applicant: QUALCOMM INC

    Abstract: For determining use of receive diversity in a mobile station, a control system ( 210 or 401 ) determines a demand level for use of communication resources. A transmitter ( 300 ) communicates a message indicating use of receive diversity at a mobile station based on the determined demand level. In another aspect, a receiver ( 200 ) receives a channel and determines transmit power level of the channel for being at a lower or upper transmit power level limit. The control system ( 210 or 401 ) controls receive diversity by selecting a number of receiver chains ( 290 ) based on the determined transmit power level. In another aspect, receiver ( 200 ) receives a channel and determines a channel condition of the channel and duration of the channel condition. Control system ( 210 or 401 ) controls receive diversity by selecting a number of receiver chains ( 290 ) based on the determined channel condition and the duration.

    Method and apparatus for time-division power assignments in wireless communication system

    公开(公告)号:AU8862001A

    公开(公告)日:2002-03-13

    申请号:AU8862001

    申请日:2001-08-31

    Applicant: QUALCOMM INC

    Abstract: In a CDMA data communication system capable of variable rate data transmission, a time-division power assignment cyclically reduces the carrier power level to at least one sector to reduce interference in neighboring sectors. The base station determines a time-division power assignment for each sector and generates signals according to the power assignment. The mobile unit generates filter coefficients corresponding to each power level. The mobile unit estimates Carrier Signal-to-Interference (C/I) to determine a data rate for each power level. Previous iterations of the equalizer are stored and used to refine future estimates.

    USER PLANE-BASED LOCATION SERVICES (LCS) SYSTEM, METHOD AND APPARATUS

    公开(公告)号:CA2517800C

    公开(公告)日:2013-04-23

    申请号:CA2517800

    申请日:2004-03-04

    Applicant: QUALCOMM INC

    Abstract: A system, method and apparatus for providing location services whereby location determination (130) and location disclosure (120) are treated as separate and independent processes or LCS-sessions. Location determination may be performed (as necessary) via a first set of network entities (256, 218, 260) to obtain location information for a mobile station. The location information may be cached for subsequent disclosure to any number of applications. Location disclosure may be performed (when requested) via a second set of network entities (256, 218, 216) to provide the location information. Location determination may utilize a first security procedure for authentication and authorization and to obtain a first session key used for location determination. Location disclosure may utilize a second security procedure for authentication and authorization and to obtain a second session key used for location disclosure. For a roaming mobile station, location determination may be performed via a serving network and location disclosure may be performed via a home network.

Patent Agency Ranking