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公开(公告)号：BR9904639A
公开(公告)日：2000-09-05
申请号：BR9904639
申请日：1999-09-20
Applicant: LUCENT TECHNOLOGIES INC
Inventor： KAMEL RAAFAT EDWARD , WEAVER CARL FRANCISC , MEYERS MARTIN HOWARD , SANDERS CHARLES ALBERT
Abstract: A method and apparatus for arranging transmission of overhead messages on the paging channel of a wireless communications system is described. Certain paging channel slots are established, based on a timing reference, that must contain an overhead message. In the intervening slots or slot fragments, the base station transmits mobile-directed messages, when they are available. When no mobile directed messages are available for transmission, the base station selects an overhead message from a queue for transmission on the intervening paging channel slot or slot fragment.
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公开(公告)号：AU5010599A
公开(公告)日：2000-04-06
申请号：AU5010599
申请日：1999-09-23
Applicant: LUCENT TECHNOLOGIES INC
Abstract: A method and apparatus for arranging transmission of overhead messages on the paging channel of a wireless communications system is described. Certain paging channel slots are established, based on a timing reference, that must contain an overhead message. In the intervening slots or slot fragments, the base station transmits mobile-directed messages, when they are available. When no mobile directed messages are available for transmission, the base station selects an overhead message from a queue for transmission on the intervening paging channel slot or slot fragment.
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公开(公告)号：DE69930484T2
公开(公告)日：2006-10-26
申请号：DE69930484
申请日：1999-11-30
Applicant: LUCENT TECHNOLOGIES INC
Inventor： BI QI , KAMEL RAAFAT EDWARD , RUBIN HARVEY
Abstract: Separate power control for the forward voice channel and forward data channel is provided without using additional bandwidth or decreasing the amount of pilot signal provided from the mobile to the base station. Alternating voice and data power control commands or information are transmitted in the pilot channel by a mobile to a base station. In one embodiment, the power control portion of a first pilot channel segment is used to provide power control for the forward voice channel and then in the following pilot channel segment, the power control portion is used to provide power control for the forward data channel. In other embodiments, other than a 50/50 mix between voice and data power control is provided in the mobile's pilot channel. For example, forward voice channel power control commands may be transmitted two or more times for each transmission of forward data channel power control commands.
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公开(公告)号：DE69930484D1
公开(公告)日：2006-05-11
申请号：DE69930484
申请日：1999-11-30
Applicant: LUCENT TECHNOLOGIES INC
Inventor： BI QI , KAMEL RAAFAT EDWARD , RUBIN HARVEY
Abstract: Separate power control for the forward voice channel and forward data channel is provided without using additional bandwidth or decreasing the amount of pilot signal provided from the mobile to the base station. Alternating voice and data power control commands or information are transmitted in the pilot channel by a mobile to a base station. In one embodiment, the power control portion of a first pilot channel segment is used to provide power control for the forward voice channel and then in the following pilot channel segment, the power control portion is used to provide power control for the forward data channel. In other embodiments, other than a 50/50 mix between voice and data power control is provided in the mobile's pilot channel. For example, forward voice channel power control commands may be transmitted two or more times for each transmission of forward data channel power control commands.
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公开(公告)号：CA2317142C
公开(公告)日：2004-04-13
申请号：CA2317142
申请日：2000-08-30
Applicant: LUCENT TECHNOLOGIES INC
Inventor： WU XIAO CHENG , KUO WEN-YI , KAMEL RAAFAT EDWARD , MEYERS MARTIN HOWARD , WEAVER CARL FRANCIS
IPC: H04B1/04 , H04B7/005 , H04B7/26 , H04W52/12 , H04W52/14 , H04W52/40 , H04W52/50 , H04Q7/36 , H04Q7/38
Abstract: A method and system for controlling downlink transmit power during a soft hand-off in a spread-spectrum wireless system supports independent power control of multiple forward channels to reduce fading. For a soft hand-off, a mobile switching center determines if a forward control channel is transmitted from different sectors of base stations than a forward data channel is. The base stations preferably adjust transmit powers of the forward channels grouped into different physical channels by receiving power control data over the allocated reverse power control channels to compensate for fading of the forward channels during a soft hand-off.
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Patent Agency Ranking
公开(公告)号：CA2317142A1
公开(公告)日：2001-03-02
申请号：CA2317142
申请日：2000-08-30
Applicant: LUCENT TECHNOLOGIES INC
Inventor： WEAVER CARL FRANCIS , WU XIAO CHENG , MEYERS MARTIN HOWARD , KAMEL RAAFAT EDWARD , KUO WEN-YI
IPC: H04B1/04 , H04B7/005 , H04B7/26 , H04W52/12 , H04W52/14 , H04W52/40 , H04W52/50 , H04Q7/36 , H04Q7/38
Abstract: A method and system for controlling downlink transmit power during a soft hand-off in a spread-spectrum wireless system supports independent power control of multiple forward channels to reduce fading. For a soft hand-off, a mobile switching center determines if a forward control channel is transmitted from different sectors of base stations than a forward data channel is. The base stations preferably adjust transmit powers of the forward channels grouped into different physical channels by receiving power control data over the allocated reverse power control channels to compensate for fading of the forward channels during a soft hand-off.
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公开(公告)号：AU6178699A
公开(公告)日：2000-06-15
申请号：AU6178699
申请日：1999-11-30
Applicant: LUCENT TECHNOLOGIES INC
Inventor： BI QI , KAMEL RAAFAT EDWARD , RUBIN HARVEY
Abstract: Separate power control for the forward voice channel and forward data channel is provided without using additional bandwidth or decreasing the amount of pilot signal provided from the mobile to the base station. Alternating voice and data power control commands or information are transmitted in the pilot channel by a mobile to a base station. In one embodiment, the power control portion of a first pilot channel segment is used to provide power control for the forward voice channel and then in the following pilot channel segment, the power control portion is used to provide power control for the forward data channel. In other embodiments, other than a 50/50 mix between voice and data power control is provided in the mobile's pilot channel. For example, forward voice channel power control commands may be transmitted two or more times for each transmission of forward data channel power control commands.
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公开(公告)号：AU4874099A
公开(公告)日：2000-03-23
申请号：AU4874099
申请日：1999-09-15
Applicant: LUCENT TECHNOLOGIES INC
Inventor： KAMEL RAAFAT EDWARD , KAO WEN-YI , MEYERS MARTIN HOWARD , WEAVER CARL FRANCIS
Abstract: A method and apparatus that permits base stations to adaptively set initial power levels in forward link traffic channels (i.e., base station to mobile unit) based on an interference measure, where the interference measure is the difference between the base station transmitted pilot Ec/Io and the mobile unit received pilot Ec/Io. The interference measure indicates how much interference is present from other base stations in the mobile unit's locale, mobile receiver noise and other similar sources. Call quality and system capacity are optimized since the initial power level is set in accordance with the interference environment. The method of the invention implements the adaptive setting by extracting the mobile unit received pilot Ec/Io from the access message transmitted by the mobile unit. The interference measure is then determined and used by the base station to set the initial power level in the forward link traffic channel.
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公开(公告)号：AU4475999A
公开(公告)日：2000-03-16
申请号：AU4475999
申请日：1999-08-26
Applicant: LUCENT TECHNOLOGIES INC
Inventor： JIANG FRANCES , KUO WEN-YI , KAMEL RAAFAT EDWARD
IPC: H04B7/04 , H04B7/26 , H04W16/26 , H04W16/30 , H04W16/32 , H04W36/08 , H04W36/38 , H04Q7/30 , H04Q7/20
Abstract: The present invention is a method for performing handoffs in wireless communications systems having extended range concentric cell base station, wherein the concentric cell base station has a micro cell and a macro cell that incorporates multiple timing protocols to extend the base station's access range. In one embodiment, the base station determines whether a handoff is to be performed using absolute path delay information, which will indicate the current and previous positions of a mobile-telephone. If the absolute path delay information indicates that the mobile-telephone is moving between the macro cell and the micro cell, or to a cell associated with another base station, the current base station will instruct the mobile-telephone to perform a handoff to the frequency band associated with the micro cell, macro cell or base station to which the mobile-telephone is traveling towards.
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公开(公告)号：DE69928347T2
公开(公告)日：2006-07-27
申请号：DE69928347
申请日：1999-09-21
Applicant: LUCENT TECHNOLOGIES INC
Abstract: A method and apparatus for arranging transmission of overhead messages on the paging channel of a wireless communications system is described. Certain paging channel slots are established, based on a timing reference, that must contain an overhead message. In the intervening slots or slot fragments, the base station transmits mobile-directed messages, when they are available. When no mobile directed messages are available for transmission, the base station selects an overhead message from a queue for transmission on the intervening paging channel slot or slot fragment.
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