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公开(公告)号：FI943189A
公开(公告)日：1994-07-01
申请号：FI943189
申请日：1994-07-01
Applicant: MOTOROLA INC
Abstract: PCT No. PCT/EP93/02743 Sec. 371 Date Nov. 17, 1994 Sec. 102(e) Date Nov. 17, 1994 PCT Filed Oct. 7, 1993 PCT Pub. No. WO94/10765 PCT Pub. Date May 11, 1994This invention relates to a time division multiple access (TDMA) trunked radio system and it relates to a frame structure for communication between fixed, mobile and portable radios in such a system. The radio system comprises: a base station and a plurality of remote radio units for communicating over time slots of a time divided radio channel, the base station having means for transmitting a synchronization signal for defining the timing of the time slots, and each of the remote units having a power amplifier with linearization means, characterized in that the channel comprises predetermined linearization time slots (120, FIG. 2) for transmission of training signals, interspersed between other time slots and each remote radio unit comprises means for generating a training signal during a linearization time slot and linearizing its power amplifier during that time slot in advance of and independent of transmission of signals during one of said other time slots.
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公开(公告)号：CA2126987C
公开(公告)日：2004-06-22
申请号：CA2126987
申请日：1993-10-07
Applicant: MOTOROLA INC
Abstract: This invention relates to a time division multiple access (TDMA) trunked rad io system and it relates to a frame structure for communication between fixed, mobile and portable radios in such a system . The radio system comprises: a base station and a plurality of remote radio units for communicating over time slots of a time divided radio channel, the base station having means for transmitting a synchronization signal for defining the timing of the tim e slots, and each of the remote units having a power amplifier with linearization means, characterized in that the channel comprises predetermined linearization time slots (120) for transmission of training signals, interspersed between other time slots and each remote radio unit comprises means for generating a training signal during a linearization time slot and linearizing its power amplifier during that time slot in advance of and independent of transmission of signals during one of said other time slots.
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公开(公告)号：DK173776B1
公开(公告)日：2001-10-08
申请号：DK79394
申请日：1994-07-01
Applicant: MOTOROLA INC
IPC: H04B7/26 , H03F1/32 , H04B7/005 , H04L27/36 , H04B7/212 , H04B1/00 , H04B1/66 , H04B15/00 , H04J3/10
Abstract: PCT No. PCT/EP93/02743 Sec. 371 Date Nov. 17, 1994 Sec. 102(e) Date Nov. 17, 1994 PCT Filed Oct. 7, 1993 PCT Pub. No. WO94/10765 PCT Pub. Date May 11, 1994This invention relates to a time division multiple access (TDMA) trunked radio system and it relates to a frame structure for communication between fixed, mobile and portable radios in such a system. The radio system comprises: a base station and a plurality of remote radio units for communicating over time slots of a time divided radio channel, the base station having means for transmitting a synchronization signal for defining the timing of the time slots, and each of the remote units having a power amplifier with linearization means, characterized in that the channel comprises predetermined linearization time slots (120, FIG. 2) for transmission of training signals, interspersed between other time slots and each remote radio unit comprises means for generating a training signal during a linearization time slot and linearizing its power amplifier during that time slot in advance of and independent of transmission of signals during one of said other time slots.
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公开(公告)号：FI107095B
公开(公告)日：2001-05-31
申请号：FI943189
申请日：1994-07-01
Applicant: MOTOROLA INC
Abstract: PCT No. PCT/EP93/02743 Sec. 371 Date Nov. 17, 1994 Sec. 102(e) Date Nov. 17, 1994 PCT Filed Oct. 7, 1993 PCT Pub. No. WO94/10765 PCT Pub. Date May 11, 1994This invention relates to a time division multiple access (TDMA) trunked radio system and it relates to a frame structure for communication between fixed, mobile and portable radios in such a system. The radio system comprises: a base station and a plurality of remote radio units for communicating over time slots of a time divided radio channel, the base station having means for transmitting a synchronization signal for defining the timing of the time slots, and each of the remote units having a power amplifier with linearization means, characterized in that the channel comprises predetermined linearization time slots (120, FIG. 2) for transmission of training signals, interspersed between other time slots and each remote radio unit comprises means for generating a training signal during a linearization time slot and linearizing its power amplifier during that time slot in advance of and independent of transmission of signals during one of said other time slots.
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公开(公告)号：NL194188B
公开(公告)日：2001-04-02
申请号：NL9320020
申请日：1993-10-07
Applicant: MOTOROLA INC
Abstract: PCT No. PCT/EP93/02743 Sec. 371 Date Nov. 17, 1994 Sec. 102(e) Date Nov. 17, 1994 PCT Filed Oct. 7, 1993 PCT Pub. No. WO94/10765 PCT Pub. Date May 11, 1994This invention relates to a time division multiple access (TDMA) trunked radio system and it relates to a frame structure for communication between fixed, mobile and portable radios in such a system. The radio system comprises: a base station and a plurality of remote radio units for communicating over time slots of a time divided radio channel, the base station having means for transmitting a synchronization signal for defining the timing of the time slots, and each of the remote units having a power amplifier with linearization means, characterized in that the channel comprises predetermined linearization time slots (120, FIG. 2) for transmission of training signals, interspersed between other time slots and each remote radio unit comprises means for generating a training signal during a linearization time slot and linearizing its power amplifier during that time slot in advance of and independent of transmission of signals during one of said other time slots.
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Patent Agency Ranking
公开(公告)号：DE4395427C2
公开(公告)日：2000-07-27
申请号：DE4395427
申请日：1993-10-07
Applicant: MOTOROLA INC
Abstract: PCT No. PCT/EP93/02743 Sec. 371 Date Nov. 17, 1994 Sec. 102(e) Date Nov. 17, 1994 PCT Filed Oct. 7, 1993 PCT Pub. No. WO94/10765 PCT Pub. Date May 11, 1994This invention relates to a time division multiple access (TDMA) trunked radio system and it relates to a frame structure for communication between fixed, mobile and portable radios in such a system. The radio system comprises: a base station and a plurality of remote radio units for communicating over time slots of a time divided radio channel, the base station having means for transmitting a synchronization signal for defining the timing of the time slots, and each of the remote units having a power amplifier with linearization means, characterized in that the channel comprises predetermined linearization time slots (120, FIG. 2) for transmission of training signals, interspersed between other time slots and each remote radio unit comprises means for generating a training signal during a linearization time slot and linearizing its power amplifier during that time slot in advance of and independent of transmission of signals during one of said other time slots.
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公开(公告)号：GB2309854B
公开(公告)日：2000-04-12
申请号：GB9601772
申请日：1996-01-30
Applicant: MOTOROLA INC
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公开(公告)号：IT1290896B1
公开(公告)日：1998-12-14
申请号：ITRM970027
申请日：1997-01-24
Applicant: MOTOROLA INC
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公开(公告)号：ES2098185A1
公开(公告)日：1997-04-16
申请号：ES9450017
申请日：1993-10-07
Applicant: MOTOROLA INC
Abstract: SISTEMA DE RADIO ENLAZADOS DE ACCESO MULTIPLE DE DIVISION DE TIEMPO (TDMA), QUE COMPRENDE UNA ESTACION DE BASE Y UNA PLURALIDAD DE UNIDADES DE RADIO REMOTAS PARA COMUNICACION POR INTERVALOS DE TIEMPO DE UN CANAL DE RADIO DE TIEMPO COMPARTIDO. EL CANAL COMPRENDE INTERVALOS DE LINEALIZACION PREDETERMINADOS PARA LA TRANSMISION DE SEÑALES DE ECUALIZACION PARA LINEALIZACION, ENTREMEZCLADAS ENTRE OTROS INTERVALOS DE TIEMPO (TRAFICO O CONTROL), DE MODO QUE UNA UNIDAD REMOTA QUE TIENE OPERACION DE LINEALIZACION (TAL COMO REALIMENTACION CARTESIANA CON ECUALIZACION) PUEDE GENERAR UNA SEÑAL DE ECUALIZACION PARA LINEALIZACION DURANTE UN INTERVALO DE LINEALIZACION Y PUEDE LINEALIZAR SU AMPLIFICADOR DE POTENCIA DURANTE ESE INTERVALO CON ANTICIPACION O EN FORMA INDEPENDIENTE A LA TRANSMISION DE SEÑALES DURANTE UNO DE LOS DEMAS INTERVALOS. DE ESTA MANERA LA TRANSMISION DE SECUENCIAS DE ECUALIZACION PARA LINEALIZACION POR DISTINTAS UNIDADES REMOTAS NO INTERFIERE CON LAS SEÑALES DE TRAFICO O CONTROL.
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30.发明专利
公开(公告)号：PL304341A1
公开(公告)日：1995-01-09
申请号：PL30434193
申请日：1993-10-07
Applicant: MOTOROLA INC
Abstract: PCT No. PCT/EP93/02743 Sec. 371 Date Nov. 17, 1994 Sec. 102(e) Date Nov. 17, 1994 PCT Filed Oct. 7, 1993 PCT Pub. No. WO94/10765 PCT Pub. Date May 11, 1994This invention relates to a time division multiple access (TDMA) trunked radio system and it relates to a frame structure for communication between fixed, mobile and portable radios in such a system. The radio system comprises: a base station and a plurality of remote radio units for communicating over time slots of a time divided radio channel, the base station having means for transmitting a synchronization signal for defining the timing of the time slots, and each of the remote units having a power amplifier with linearization means, characterized in that the channel comprises predetermined linearization time slots (120, FIG. 2) for transmission of training signals, interspersed between other time slots and each remote radio unit comprises means for generating a training signal during a linearization time slot and linearizing its power amplifier during that time slot in advance of and independent of transmission of signals during one of said other time slots.
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