51.
    发明专利
    未知

    公开(公告)号:DE69839953D1

    公开(公告)日:2008-10-09

    申请号:DE69839953

    申请日:1998-04-16

    Applicant: QUALCOMM INC

    Abstract: A forward link power control mechanism in a remote station (6) measures reverse link power control bits which are transmitted by one or more base stations (4a, 4b, 4n) on a forward traffic channel (10a). At the remote station (6) the reverse link power control bits from multiple base stations (4a, 4b, 4n) or multiple signal paths are measured, combined, and filtered to yield an improved measurement of the forward link signal quality. The reverse link (12a, 12b) power control bits which are deemed unreliable are omitted from use in the power control loop. The remote station (6) generates a set of forward link power control bits in accordance with the measurements and transmits these bits to all base stations (4a, 4b, 4n) in communication with the remote station (6). Each base station (4a, 4b, 4n) adjusts its gain of the forward traffic channel (10a) in accordance to its measurement of the forward link power control bit. The gains of the forward traffic channels (10a) of the base stations (4a, 4b, 4n) are corrected periodically so that erroneous reception of the forward link power control bits by the base stations do not accumulate.

    52.
    发明专利
    未知

    公开(公告)号:NO325476B1

    公开(公告)日:2008-05-13

    申请号:NO20014975

    申请日:2001-10-12

    Applicant: QUALCOMM INC

    Abstract: Apparatuses for a transmitter and a receiver which enhance the performance of a system utilizing interleaving and transmit diversity by reordering the sequence of symbols transmitted along the different transmission channels. This enhancement is accomplished by providing different shuffling functions in conjunction with the interleavers and deinterleavers used with different transmission channels, which decreases the probability of loss of sequential symbols when transmission channels or antennas become correlated.

    Method and apparatus for coordinating transmission of short messages with hard handoff searches in a wireless communications system

    公开(公告)号:AU759486B2

    公开(公告)日:2003-04-17

    申请号:AU3672199

    申请日:1999-04-30

    Applicant: QUALCOMM INC

    Abstract: A method and apparatus for coordinating the time at which a mobile station (5) performs searches for alternative systems to which a hard handoff will occur. In one system which includes the present invention, the mobile station (5) receives a command which instructs the mobile station (5) as to when to tune to alternative frequencies in order to search for indications of the presence of an alternative system. In another system which includes the present invention, predetermined times are defined with respect to a reference point in time that is common to both an origination base station (10) and a mobile station (5). The mobile station (5) tunes to alternative frequencies to perform searches only during these predetermined times. In addition, the mobile station (5) coordinates the transmission of reports which indicate the results of searches for alternative systems such that these reports are only transmitted from the mobile station (5) when the mobile station (5) is tuned to the origination frequency.

    СПОСОБ И УСТРОЙСТВО ДЛЯ ГЕНЕРАЦИИ КОМАНД УПРАВЛЕНИЯ МОЩНОСТЬЮ

    公开(公告)号:EA001865B1

    公开(公告)日:2001-10-22

    申请号:EA199900333

    申请日:1997-09-23

    Applicant: QUALCOMM INC

    Inventor: SAINTS KEITH W

    Abstract: Внастоящемизобретениипредложенспособгенерациикомандуправлениямощностьюв системеуправлениямощностьюпозамкнутойпетлев системесвязиМДКР. Описаниенастоящегоизобретенияприведеноприменительнок системамсвязис расширеннымспектром, нооноравнымобразомприменимои длясистемсвязидругихтипов. Внастоящемизобретенииописаниесистемыуправлениямощностьюприведенодляуправлениямощностьюпередачиотбазовойстанциик подвижнойстанции, именуемойпередачейпопрямомуканалусвязи.

    Method and apparatus for processing power control signals in a mobile telephone system

    公开(公告)号:HK1029677A1

    公开(公告)日:2001-04-06

    申请号:HK00107897

    申请日:2000-12-07

    Applicant: QUALCOMM INC

    Abstract: The transmitted power of a mobile telephone is established by power control bits that are transmitted in a traffic channel from a base station and that are demodulated by a rake receiver in the telephone. The rake receiver includes a plurality of demodulators that demodulate respective fingers of the traffic channel which may be caused by multipath conditions, with the power control bits from each demodulator being combined with the power control bits of the other demodulators in the rake receiver regardless of whether the demodulators are in lock with their respective fingers. The combined power control signal from a rake receiver associated with a first base station is then tested against a threshold. If the combined power is at least equal to the threshold, the combined power control signal is sent to a logic combiner. If other base stations are communicating with the mobile telephone, the combined power control signal from each of these other base stations is also sent to the logic combiner. If any power control signal commands the mobile telephone to decrease its transmitted power, it does so; otherwise, it increases its transmitted power. Alternatively, the power control bits from each demodulator in a rake receiver can be blocked if the finger energy falls below a threshold that depends on the number of fingers from the associated base station.

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