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公开(公告)号：DE69730844T2
公开(公告)日：2005-02-10
申请号：DE69730844
申请日：1997-05-21
Applicant: MOTOROLA INC
Inventor： SEXTON A , LING FUYUN , STEWART A
IPC: H04L27/01 , H04B1/7085 , H04L7/00 , H04L7/033 , H04L7/10 , H04L27/22 , H04Q7/38 , H04B3/04 , H04B1/707
Abstract: The method includes acquiring a signal (501); inputting (502), at a first time, a received symbol to a demodulator having a plurality of outputs to produce a set of early outputs; inputting (504), at a second time, the received symbol to the demodulator to produce a set of on-time outputs; inputting (505), at a third time, the received symbol to the demodulator to produce a set of late outputs; and comparing (506) at least one output in the set of early outputs with at least one output in the set of late outputs to produce a timing measure.
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公开(公告)号：DE69733736D1
公开(公告)日：2005-08-25
申请号：DE69733736
申请日：1997-01-15
Applicant: MOTOROLA INC
Inventor： WANG MAO , LING FUYUN , STEWART A
IPC: H04J13/02 , H03M13/23 , H04B1/707 , H04L1/00 , H04L1/20 , H04L25/02 , H04Q7/38 , H04L27/06 , H04J3/22 , G06F11/10
Abstract: A receiver (500) utilizes parameters generated by a Viterbi decoder (530) to determine one of a plurality of coding rates in which user information is transmitted. The receiver (500) combines the parameters in a predetermined manner, the result of which is a detection statistic (dij). By utilizing the detection statistic (dij), the coding rate at which user information is accurately determined.
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公开(公告)号：DE69429917D1
公开(公告)日：2002-03-28
申请号：DE69429917
申请日：1994-12-22
Applicant: MOTOROLA INC
Abstract: A code division multiple access (CDMA) communication system reduces system self-interference and enhances system capacity by making rate selection decisions for individual speech encoders in concert with other speech encoders. The system utilizes perpetually weighted error metrics (401) as input into a rate controller (404) which determines and provides selected rates (402) back to the encoders (105). The system provides optimum voice quality and system capacity in that it allows specific encoders to decrease their rate, which improves capacity, as necessary while allowing other encoders to maintain their rates. This prevents needless degradation in voice quality at those times when system capacity needs to be temporarily increased.
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Patent Agency Ranking
公开(公告)号：DE69733736T2
公开(公告)日：2006-03-30
申请号：DE69733736
申请日：1997-01-15
Applicant: MOTOROLA INC
Inventor： WANG MAO , LING FUYUN , STEWART A
IPC: H04J13/02 , H04L27/06 , G06F11/10 , H03M13/23 , H04B1/707 , H04J3/22 , H04L1/00 , H04L1/20 , H04L25/02 , H04Q7/38
Abstract: A receiver (500) utilizes parameters generated by a Viterbi decoder (530) to determine one of a plurality of coding rates in which user information is transmitted. The receiver (500) combines the parameters in a predetermined manner, the result of which is a detection statistic (dij). By utilizing the detection statistic (dij), the coding rate at which user information is accurately determined.
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公开(公告)号：DE69533663T2
公开(公告)日：2006-03-09
申请号：DE69533663
申请日：1995-01-09
Applicant: MOTOROLA INC
Abstract: A code division multiple access (CDMA) communication system reduces interference by reducing the encoding rate for selected mobiles. The system primarily uses link related characteristics such as, inter alia, distance measurements, physical resource power and mobile determined noise, to determine which mobiles require a encoding rate reduction. Once determined, the encoding rate of the determined mobiles is reduced, which in turn reduces self-interference and enhances system capacity.
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公开(公告)号：DE69533663D1
公开(公告)日：2004-11-25
申请号：DE69533663
申请日：1995-01-09
Applicant: MOTOROLA INC
IPC: G10L19/00 , H04B1/10 , H04B7/26 , H04L12/56 , H04W16/14 , H04W28/22 , H04W36/18 , H04Q7/00 , H04Q7/38 , H04L1/12
Abstract: A code division multiple access (CDMA) communication system reduces interference by reducing the encoding rate for selected mobiles. The system primarily uses link related characteristics such as, inter alia, distance measurements, physical resource power and mobile determined noise, to determine which mobiles require a encoding rate reduction. Once determined, the encoding rate of the determined mobiles is reduced, which in turn reduces self-interference and enhances system capacity.
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公开(公告)号：DE69730844D1
公开(公告)日：2004-10-28
申请号：DE69730844
申请日：1997-05-21
Applicant: MOTOROLA INC
Inventor： SEXTON A , LING FUYUN , STEWART A
IPC: H04L27/01 , H04B1/7085 , H04L7/00 , H04L7/033 , H04L7/10 , H04L27/22 , H04Q7/38 , H04B3/04 , H04B1/707
Abstract: The method includes acquiring a signal (501); inputting (502), at a first time, a received symbol to a demodulator having a plurality of outputs to produce a set of early outputs; inputting (504), at a second time, the received symbol to the demodulator to produce a set of on-time outputs; inputting (505), at a third time, the received symbol to the demodulator to produce a set of late outputs; and comparing (506) at least one output in the set of early outputs with at least one output in the set of late outputs to produce a timing measure.
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公开(公告)号：DE69429917T2
公开(公告)日：2002-07-18
申请号：DE69429917
申请日：1994-12-22
Applicant: MOTOROLA INC
Abstract: A code division multiple access (CDMA) communication system reduces system self-interference and enhances system capacity by making rate selection decisions for individual speech encoders in concert with other speech encoders. The system utilizes perpetually weighted error metrics (401) as input into a rate controller (404) which determines and provides selected rates (402) back to the encoders (105). The system provides optimum voice quality and system capacity in that it allows specific encoders to decrease their rate, which improves capacity, as necessary while allowing other encoders to maintain their rates. This prevents needless degradation in voice quality at those times when system capacity needs to be temporarily increased.
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