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公开(公告)号：JP2004282750A
公开(公告)日：2004-10-07
申请号：JP2004070674
申请日：2004-03-12
Applicant: Motorola Inc , モトローラ・インコーポレイテッドMotorola Incorporated
Inventor： MARSAN MARK J , KLOOS MICHAEL N
Abstract: PROBLEM TO BE SOLVED: To provide an apparatus and method for transmitting/receiving a multiplexed signal which exhibits no voice delay and voice quality degradation.
SOLUTION: An iDEN is provided with a base radio unit (104) which is interconnected to a plurality of transcoders (4) located in a central office (2). The base radio unit (104) multiplexes voice packets from the plurality of transcoders (4) on a time division multiple signal frame (20) in the time division manner. Each signal frame (20) contains a plurality of consecutive frames (204). Each consecutive frame (204) contains a predetermined number of slots (202) on the basis of channel interleave. Each slot (202) contains a slot descriptor block (2024) and a plurality of sub-slots (2026, 2028). The slot descriptor block (2024) alternately contains overhead information for the plurality of sub-slots (2026, 2028).
COPYRIGHT: (C)2005,JPO&NCIPI-
2.发明专利Method and apparatus for sharing slot descriptor block among multiple users 有权用于在多个用户中共享插图描述符块的方法和装置
公开(公告)号：JP2007053809A
公开(公告)日：2007-03-01
申请号：JP2006310433
申请日：2006-11-16
Applicant: Motorola Inc , モトローラ・インコーポレイテッドMotorola Incorporated
Inventor： MARSAN MARK J , KLOOS MICHAEL N
Abstract: PROBLEM TO BE SOLVED: To improve channel efficiency of an iDEN system double without using an interleaved channel of 6:1 and to save an RF output.
SOLUTION: An iDEN (Integrated Digital Enhanced Network) is equipped with a base radio unit (104) which is interconnected to a plurality of transcoders (4) located in a central office (2). The base radio unit (104) multiplexes voice packets from the plurality of transcoders (4) on a time division multiple signal frame (20) in the time division manner. Each signal frame (20) contains a plurality of consecutive frames (204). Each consecutive frame (204) contains a prescribed number of slots (202) on the basis of channel interleaving. Each slot (202) contains a slot descriptor block (2024) and a plurality of sub-slots (2026, 2028). The plurality of sub-slots (2026, 2028) share the slot descriptor block (2024).
COPYRIGHT: (C)2007,JPO&INPITAbstract translation: 要解决的问题：为了提高iDEN系统的通道效率，而不使用6：1的交错通道并节省RF输出。 iDEN（集成数字增强型网络）配备有与位于中心局（2）中的多个代码转换器（4）互连的基站无线电单元（104）。 基站无线电单元（104）以时分方式将来自多个代码转换器（4）的语音分组复用在时分多信号帧（20）上。 每个信号帧（20）包含多个连续帧（204）。 每个连续帧（204）基于信道交织包含规定数量的时隙（202）。 每个时隙（202）包含时隙描述符块（2024）和多个子时隙（2026,2028）。 多个子时隙（2026,2082）共享时隙描述符块（2024）。 版权所有（C）2007，JPO＆INPIT
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公开(公告)号：CA2459874A1
公开(公告)日：2004-09-14
申请号：CA2459874
申请日：2004-03-05
Applicant: MOTOROLA INC
Inventor： MARSAN MARK J , KLOOS MICHAEL N
Abstract: An Integrated Digital Enhanced Network system (1) includes a base radio (104) interconnected to a plurality of transcoders (4) located at central offices (2). The base radio (104) time division multiplexes voice packets from the plurality of transcoders (4) into a time division multiplexed signal frame (20). Each signal frame (20) includes a plurality of sequential frames (204). Each sequential frame (204) includes a predetermined number of slots (202) based upon a channel interleave. Each of the slots (202) includes a slot descriptor block (2024), and a plurality of subslots (e.g., 2026, 2028). The slot descriptor block (2024) alternatively contains overhead information for the plurality of subslots (e.g., 2026, 2028). The subscriber device (30) demultiplexes each sequential frame (204) and receives a specific slot (202) and a specific subslot of the specific slot based upon an assigned slot offset. The subscriber device (30) executes a handover process (600) for determining a timing for jumping to a time division signal frame (21) generated by a new base radio.
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公开(公告)号：GB2345827B
公开(公告)日：2003-11-05
申请号：GB9927030
申请日：1999-11-17
Applicant: MOTOROLA INC
Inventor： MARSAN MARK J , CHINITZ LEIGH M
Abstract: A radio communication system assigns use of a radio frequency communication resource comprising multiple communication channels in a way that minimizes the likelihood that a weakly received signal will be interfered with by a strongly received signal in an adjacent communication channel. The communication system determines a signal strength of a signal received from a user of the communication resource and, based on the signal strength determination, assigns the user one or more of the communication channels that are then available.
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公开(公告)号：BRPI0400328A
公开(公告)日：2005-01-04
申请号：BRPI0400328
申请日：2004-02-27
Applicant: MOTOROLA INC
Inventor： MARSAN MARK J , KLOOS MICHAEL N
Abstract: An Integrated Digital Enhanced Network system ( 1 ) includes a base radio ( 104 ) interconnected to a plurality of transcoders ( 4 ) located at central offices ( 2 ). The base radio ( 104 ) time division multiplexes voice packets from the plurality of transcoders ( 4 ) into a time division multiplexed signal frame ( 20 ). Each signal frame ( 20 ) includes a plurality of sequential frames ( 204 ). Each sequential frame ( 204 ) includes a predetermined number of slots ( 202 ) based upon a channel interleave. Each of the slots ( 202 ) includes a slot descriptor block ( 2024 ), and a plurality of subslots (e.g., 2026, 2028 ). The slot descriptor block ( 2024 ) alternatively contains overhead information for the plurality of subslots (e.g., 2026, 2028 ). The subscriber device ( 30 ) demultiplexes each sequential frame ( 204 ) and receives a specific slot ( 202 ) and a specific subslot of the specific slot based upon an assigned slot offset. The subscriber device ( 30 ) executes a handover process ( 600 ) for determining a timing for jumping to a time division signal frame ( 21 ) generated by a new base radio.
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Patent Agency Ranking6.发明专利
公开(公告)号：AU3482397A
公开(公告)日：1998-02-20
申请号：AU3482397
申请日：1997-06-05
Applicant: MOTOROLA INC
Inventor： HESS GARRY C , MARSAN MARK J , BIRCHLER MARK A
Abstract: A communication system (100) employs a method and apparatus for mitigating distortion effects and enhancing signal usability determinations in a receiver (102). The receiver receives a discrete information signal that includes a stream of information symbols. Each information symbol (124) of the stream includes two components: a desired component and an undesired component that includes interference and distortion. The receiver determines an estimate (126) of the desired component of an information symbol and an estimate (130) of the undesired component of the information symbol based on the information symbol itself and its desired component estimate. The undesired component estimate is then scaled by a scaling factor (132) that is derived based on the desired component estimate. An enhanced determination of signal usability (136) for the received symbol is finally determined based on the scaled undesired component estimate (134). In this manner, the enhanced signal usability determination approaches being a function of interference only, substantially exclusive of distortion.
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公开(公告)号：DE19955140A1
公开(公告)日：2000-09-28
申请号：DE19955140
申请日：1999-11-17
Applicant: MOTOROLA INC
Inventor： MARSAN MARK J , CHINITZ LEIGH M
Abstract: A radio communication system assigns use of a radio frequency communication resource comprising multiple communication channels in a way that minimizes the likelihood that a weakly received signal will be interfered with by a strongly received signal in an adjacent communication channel. The communication system determines a signal strength of a signal received from a user of the communication resource and, based on the signal strength determination, assigns the user one or more of the communication channels that are then available.
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公开(公告)号：BR9706547A
公开(公告)日：1999-07-20
申请号：BR9706547
申请日：1997-06-05
Applicant: MOTOROLA INC
Inventor： HESS GARRY C , MARSAN MARK J , BICHLER MARK A
Abstract: A communication system (100) employs a method and apparatus for mitigating distortion effects and enhancing signal usability determinations in a receiver (102). The receiver receives a discrete information signal that includes a stream of information symbols. Each information symbol (124) of the stream includes two components: a desired component and an undesired component that includes interference and distortion. The receiver determines an estimate (126) of the desired component of an information symbol and an estimate (130) of the undesired component of the information symbol based on the information symbol itself and its desired component estimate. The undesired component estimate is then scaled by a scaling factor (132) that is derived based on the desired component estimate. An enhanced determination of signal usability (136) for the received symbol is finally determined based on the scaled undesired component estimate (134). In this manner, the enhanced signal usability determination approaches being a function of interference only, substantially exclusive of distortion.
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公开(公告)号：CA2459874C
公开(公告)日：2010-01-05
申请号：CA2459874
申请日：2004-03-05
Applicant: MOTOROLA INC
Inventor： MARSAN MARK J , KLOOS MICHAEL N
Abstract: An Integrated Digital Enhanced Network system (1) includes a base radio (104) interconnected to a plurality of transcoders (4) located at central offices (2). The base radio (104) time division multiplexes voice packets fr om the plurality of transcoders (4) into a time division multiplexed signal fra me (20). Each signal frame (20) includes a plurality of sequential frames (204) . Each sequential frame (204) includes a predetermined number of slots (20 2) based upon a channel interleave. Each of the slots (202) includes a slot descriptor block (2024), and a plurality of subslots (e.g., 2026, 2028). The slot descriptor block (2024) alternatively contains overhead information for the plurality of subslots (e.g., 2026, 2028). The subscriber device (30) demultiplexes each sequential frame (204) and receives a specific slot (202) and a specific subslot of the specific slot based upon an assigned slot offset. The subscriber device (30) executes a handover process (600) for determining a timing for jumping to a time division signal frame (21) generated by a new base radio.
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公开(公告)号：GB2345827A
公开(公告)日：2000-07-19
申请号：GB9927030
申请日：1999-11-17
Applicant: MOTOROLA INC
Inventor： MARSAN MARK J , CHINITZ LEIGH M
Abstract: A radio communication system assigns use of a radio frequency communication resource 400 comprising multiple communication channels 411-466 in a way that minimises the likelihood that a weakly received signal will be interfered with by a strongly received signal in an adjacent communication channel. The communication system determines a signal strength of a signal received from a user of the communication resource and based on the signal strength determination, assigns the user at least one of the communication channels available. Preferably, at least one threshold value is defined and a first channel is assigned if the received signal strength is less than the threshold value and a second channel is assigned if the signal strength is equal to or greater than the first threshold value. Preferably, the communication resource 400 comprises a plurality of frequencies 401-406 each comprising a plurality of time slots 411-466, where the communication channel is a single time slot and there are defined sets 1-6 of concurrently transmitted timeslots each set being designated for particular strengths of received signal. Thus signals with differing strengths are preferably assigned to non-concurrent time slots. Further, if none of the slots from the appropriate set are available, a slot from another set may be assigned depending on its frequency separation from slots already assigned in its set or further depending on a level of signal interference in the slot. Additionally, a channel may be re-assigned if a signal strength comparison indicates an undesirable change in the signal strength.
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