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公开(公告)号:WO1994027390A1
公开(公告)日:1994-11-24
申请号:PCT/US1994004110
申请日:1994-04-14
Applicant: MOTOROLA INC.
Inventor: MOTOROLA INC. , CRISLER, Kenneth, James , STURGILL, Robert, Martin , JASPER, Steven, Charles , EMEOTT, Stephen, Paul , MARTURANO, Lawrence, Joseph , HONG, Daehyoung
IPC: H04L05/12
CPC classification number: H03M13/256 , H03M13/25 , H04L27/3433
Abstract: A method and system (300) for encoding data comprising a variable rate trellis coder (302) which receives a plurality of discrete data elements - e.g., input bits - and trellis encodes the information pursuant to a known set of coding rules, producing a plurality of trellis encoded symbols (303). Further, another variable input is used by the trellis coder (302) to determine the coding rate - i.e., symbols (303) are encoded and outputted to a dimensional formatter (306) at a rate which is determined by a rate control signal (305) as output by the variable rate controller (304). The dimensional formatter (306) acts in response to input from the variable rate controller (304), providing formatted symbols (308) to a modulator (310). The modulator (310), which in a preferred embodiment is a QAM modulator, is used to modulate the information signal onto a carrier signal for transmission over the communication channel.
Abstract translation: 一种用于对包含可变速率网格编码器(302)的数据进行编码的方法和系统(300),该可变速率网格编码器(302)接收多个离散数据元素(例如,输入比特),并根据一组已知的编码规则对该信息进行网格编码,从而产生多个 的网格编码符号(303)。 此外,网格编码器(302)使用另一个可变输入来确定编码速率 - 即符号(303)被编码并以速率控制信号(305)确定的速率输出到维格式化器(306) )作为可变速率控制器(304)的输出。 尺寸格式器(306)响应于来自可变速率控制器(304)的输入而起作用,向调制器(310)提供格式化的符号(308)。 在优选实施例中,调制器(310)是QAM调制器,用于将信息信号调制到载波信号上,以在通信信道上传输。