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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
Inventor: TIEDEMANN EDWARD G JR , SAINTS KEITH W
IPC: H04B7/005 , C08L23/04 , C08L23/06 , C08L23/08 , C08L23/10 , C08L23/12 , C08L23/16 , H04B1/04 , H04B7/26 , H04W52/08 , H04W52/24 , H04W52/40
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.
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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
Inventor: SAINTS KEITH W , LUNDBY STEIN A
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.
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公开(公告)号:HK1073940A1
公开(公告)日:2005-10-21
申请号:HK05106499
申请日:2005-07-29
Applicant: QUALCOMM INC
Inventor: BLESSENT LUCA , LIN YU-CHUAN G , SAINTS KEITH W , YOON STEVEN
IPC: H04B20090101 , H04B7/005
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公开(公告)号:CA2532080A1
公开(公告)日:2005-01-27
申请号:CA2532080
申请日:2004-07-12
Applicant: QUALCOMM INC
Inventor: CHANG HAITAO , SAINTS KEITH W , BLESSENT LUCA , CHEN TAO , TIEDEMANN EDWARD G JR , WEI YONGBIN , ACHOUR BAAZIZ , BUTLER BRIAN K
Abstract: A dynamic shared forward link channel (or "data" channel) is used to send multicast data to a group of wireless devices, e.g., using a common long cod e mask for the data channel. Reference power control (PC) bits are also sent o n the data channel and used for signal quality estimation. A shared forward li nk control channel is used to send user-specific signaling to individual wirele ss devices, e.g., using time division multiplexing (TDM) and a unique long code mask for each wireless device. A shared forward link indicator channel is us ed to send reverse link (RL) PC bits to the wireless devices, e.g., using TDM. The data channel is jointly power controlled by all wireless devices receivi ng the data channel. The control and indicator channels are individually power controlled by each wireless device such that the signaling and RL PC bits se nt on these channels for the wireless device are reliably received.
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公开(公告)号:AU2004301428A1
公开(公告)日:2005-01-27
申请号:AU2004301428
申请日:2004-07-12
Applicant: QUALCOMM INC
Inventor: WEI YONGBIN , BUTLER BRIAN K , CHANG HAITAO , ACHOUR BAAZIZ , SAINTS KEITH W , TIEDEMANN EDWARD G JR , CHEN TAO , BLESSENT LUCA
Abstract: A dynamic shared forward link channel (or “data” channel) is used to send multicast data to a group of wireless devices, e.g., using a common long code mask for the data channel. Reference power control (PC) bits are also sent on the data channel and used for signal quality estimation. A shared forward link control channel is used to send user-specific signaling to individual wireless devices, e.g., using time division multiplexing (TDM) and a unique long code mask for each wireless device. A shared forward link indicator channel is used to send reverse link (RL) PC bits to the wireless devices, e.g., using TDM. The data channel is jointly power controlled by all wireless devices receiving the data channel. The control and indicator channels are individually power controlled by each wireless device such that the signaling and RL PC bits sent on these channels for the wireless device are reliably received.
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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
Inventor: CHEN TAO , TIEDEMANN EDWARD G JR , SAINTS KEITH W , GLAUSER OLIVIER
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.
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公开(公告)号:NO20014975A
公开(公告)日:2001-12-04
申请号:NO20014975
申请日:2001-10-12
Applicant: QUALCOMM INC
Inventor: LUNDBY STEIN A , SAINTS KEITH W
CPC classification number: H04B7/0697 , H03M13/09 , H03M13/23 , H03M13/2957 , H04B1/707 , H04B7/0613 , H04B7/0671 , H04B7/0678 , H04B7/0894 , H04B2201/709709 , H04L1/0041 , H04L1/0071 , H04L1/06
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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.
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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
Inventor: SAINTS KEITH W , TIEDEMANN EDWARD G JR
IPC: H04B20060101 , H04B7/005 , H04B7/26
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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公开(公告)号:NO20005597A
公开(公告)日:2000-12-28
申请号:NO20005597
申请日:2000-11-06
Applicant: QUALCOMM INC
Inventor: CHEN TAO , SAINTS KEITH W , TIEDEMANN JR EDWARD G , GLAUSER OLIVIER
CPC classification number: H04W36/0083 , H04L1/0045 , H04W8/005 , H04W24/10 , H04W28/06 , H04W36/06 , H04W36/14 , H04W36/38 , H04W52/44
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