公开(公告)号：EP1645159A1

公开(公告)日：2006-04-12

申请号：EP04778166.1

申请日：2004-07-12

申请人： Qualcomm, Incorporated

发明人： CHEN, Tao ,  ACHOUR, Baaziz ,  BUTLER, Brian, K. ,  TIEDEMANN, Edward, G., Jr. ,  ZHANG, Haitao ,  SAINTS, Keith, W. ,  BLESSENT, Luca ,  WEI, Yongbin

IPC分类号： H04Q7/38

CPC分类号： H04W4/06 ,  H04L12/189 ,  H04W52/08 ,  H04W52/322 ,  H04W52/327 ,  H04W52/54 ,  H04W72/005

摘要： 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.

公开(公告)号：EP1010258B1

公开(公告)日：2006-09-27

申请号：EP98943361.0

申请日：1998-08-24

申请人： QUALCOMM INCORPORATED

发明人： SAINTS, Keith, W. ,  TIEDEMANN, Edward, G., Jr.

IPC分类号： H04B7/005 ,  H04B1/707

CPC分类号： H04W52/42

摘要： 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.

公开(公告)号：EP1076956A2

公开(公告)日：2001-02-21

申请号：EP99918916.0

申请日：1999-04-30

申请人： QUALCOMM Incorporated

发明人： CHEN, Tao ,  TIEDEMANN, Edward, G., Jr. ,  SAINTS, Keith, W. ,  GLAUSER, Olivier

IPC分类号： H04L12/00

CPC分类号： H04W36/0083 ,  H04L1/0045 ,  H04W8/005 ,  H04W24/10 ,  H04W28/06 ,  H04W36/06 ,  H04W36/14 ,  H04W36/38 ,  H04W52/44

摘要： 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.

公开(公告)号：EP0978170B1

公开(公告)日：2007-03-14

申请号：EP98917971.8

申请日：1998-04-16

申请人： QUALCOMM INCORPORATED

发明人： TIEDEMANN, Edward, G., Jr. ,  SAINTS, Keith, W.

IPC分类号： H04B7/005

CPC分类号： H04W52/08 ,  C08L23/04 ,  C08L23/06 ,  C08L23/08 ,  C08L23/0815 ,  C08L23/0853 ,  C08L23/12 ,  C08L23/16 ,  C08L2205/02 ,  H04W52/24 ,  H04W52/40 ,  C08L2666/04

摘要： 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.

公开(公告)号：EP1010258A2

公开(公告)日：2000-06-21

申请号：EP98943361.0

申请日：1998-08-24

申请人： QUALCOMM INCORPORATED

发明人： SAINTS, Keith, W. ,  TIEDEMANN, Edward, G., Jr.

IPC分类号： H04B7/005 ,  H04B1/707

CPC分类号： H04W52/42

摘要： 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.

摘要翻译： 移动电话的发送功率由在基站的业务信道中发送并由电话中的耙式接收机解调的功率控制比特来建立。 耙式接收器包括多个解调器，其解调可能由多径条件引起的业务信道的各个指针，来自每个解调器的功率控制比特与耙式接收机中的其他解调器的功率控制比特结合，而不管是否 解调器用各自的手指锁定。 然后根据阈值测试来自与第一基站相关联的耙式接收机的组合功率控制信号。 如果组合功率至少等于阈值，则组合的功率控制信号被发送到逻辑组合器。 如果其他基站正在与移动电话进行通信，则来自这些其他基站中的每一个的组合功率控制信号也被发送到逻辑组合器。 如果任何功率控制信号命令移动电话降低其发射功率，则它是这样做的; 否则会增加其传输功率。 或者，如果手指能量低于取决于来自相关基站的手指数量的阈值，则可以阻止来自瑞克接收机中的每个解调器的功率控制位。

公开(公告)号：EP0940017A2

公开(公告)日：1999-09-08

申请号：EP97949422.0

申请日：1997-11-13

申请人： QUALCOMM INCORPORATED

发明人： SAINTS, Keith, W. ,  CHEN, Tao

IPC分类号： H04B7

CPC分类号： H04W52/223 ,  H04W52/08 ,  H04W52/12 ,  H04W52/20 ,  H04W52/221

摘要： The present invention provides a method and apparatus for providing improved quality or power control by recognizing the delays inherent in a closed-loop communication system. The mobile station (12) or receiver properly adjusts its forward link quality or power level thresholds or measurements with which it compares incoming frames or portions thereof to reflect the level it anticipates receiving (after the delay). For example, the mobile station (12) can recognize that at a given measurement time, two outstanding messages have not been executed by the transmitter (where each message indicates a corresponding increase of 1 dB). As a result, the mobile station (12) can adjust its measurement threshold down by 2 dB to more closely correspond to future power adjustments. If the currently received frame or portion thereof is still below the readjusted threshold, then the mobile station (12) sends out a new message to request a further increase in the forward link channel.

公开(公告)号：EP1076956B1

公开(公告)日：2006-05-31

申请号：EP99918916.0

申请日：1999-04-30

申请人： QUALCOMM INCORPORATED

发明人： CHEN, Tao ,  TIEDEMANN, Edward, G., Jr. ,  SAINTS, Keith, W. ,  GLAUSER, Olivier

IPC分类号： H04L12/00

CPC分类号： H04W36/0083 ,  H04L1/0045 ,  H04W8/005 ,  H04W24/10 ,  H04W28/06 ,  H04W36/06 ,  H04W36/14 ,  H04W36/38 ,  H04W52/44

摘要： 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.

公开(公告)号：EP0931387B1

公开(公告)日：2004-06-30

申请号：EP97944378.5

申请日：1997-09-23

申请人： QUALCOMM INCORPORATED

发明人： SAINTS, Keith, W.

IPC分类号： H04B7/005 ,  H04B7/26

CPC分类号： H04W52/08 ,  H04W52/18

公开(公告)号：EP0978170A1

公开(公告)日：2000-02-09

申请号：EP98917971.8

申请日：1998-04-16

申请人： QUALCOMM INCORPORATED

发明人： TIEDEMANN, Edward, G., Jr. ,  SAINTS, Keith, W.

IPC分类号： H04B7/005

CPC分类号： H04W52/08 ,  C08L23/04 ,  C08L23/06 ,  C08L23/08 ,  C08L23/0815 ,  C08L23/0853 ,  C08L23/12 ,  C08L23/16 ,  C08L2205/02 ,  H04W52/24 ,  H04W52/40 ,  C08L2666/04

摘要： 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.

公开(公告)号：EP1645159B1

公开(公告)日：2008-05-07

申请号：EP04778166.1

申请日：2004-07-12

申请人： Qualcomm, Incorporated

发明人： CHEN, Tao ,  ACHOUR, Baaziz ,  BUTLER, Brian, K. ,  TIEDEMANN, Edward, G., Jr. ,  ZHANG, Haitao ,  SAINTS, Keith, W. ,  BLESSENT, Luca ,  WEI, Yongbin

IPC分类号： H04Q7/38

CPC分类号： H04W4/06 ,  H04L12/189 ,  H04W52/08 ,  H04W52/322 ,  H04W52/327 ,  H04W52/54 ,  H04W72/005

摘要： 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.