公开(公告)号：US20160065402A1

公开(公告)日：2016-03-03

申请号：US14476297

申请日：2014-09-03

Applicant: MOTOROLA SOLUTIONS, INC.

Inventor： ALAN P CONRAD ,  XIAOWEI JIN

IPC: H04L27/26

CPC classification number: H04L27/2602 ,  H04L5/0044 ,  H04L27/2626 ,  H04L27/2647

Abstract: Disclosed herein are methods and systems for embedding a supplementary data channel in OFDM-based communication systems. One embodiment takes the form of a process that includes obtaining a primary data signal that includes a given symbol, where the given symbol includes primary payload data prepended with a given cyclic prefix. The process also includes obtaining supplementary payload data. The process also includes identifying an available portion of the given symbol. The process also includes generating a modified primary data signal at least in part by replacing the available portion of the given symbol with a subset of the supplementary payload data. The process also includes outputting the generated modified primary data signal for transmission via an air interface.

Abstract translation: 这里公开了用于在基于OFDM的通信系统中嵌入补充数据信道的方法和系统。 一个实施例采用包括获得包括给定符号的主数据信号的过程的形式，其中给定符号包括以给定循环前缀为前缀的主有效载荷数据。 该过程还包括获得补充有效载荷数据。 该过程还包括识别给定符号的可用部分。 该过程还包括至少部分地通过用补充有效载荷数据的子集替换给定符号的可用部分来生成修改的主数据信号。 该过程还包括输出所生成的修改的主数据信号以经由空中接口传输。