公开(公告)号：US20150016577A1

公开(公告)日：2015-01-15

申请号：US14503108

申请日：2014-09-30

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Badri Varadaharajan ,  Eko N. Onggosanusi

IPC: H04B1/10 ,  H04B7/06 ,  H04B7/04

CPC classification number: H04B1/1027 ,  H04B7/0417 ,  H04B7/0478 ,  H04B7/063 ,  H04B7/0632 ,  H04B7/0634 ,  H04B7/0639 ,  H04B7/066 ,  H04B7/0697 ,  H04L27/2601

Abstract: Embodiments of the present disclosure provide a transmitter, a receiver and methods of operating a transmitter and a receiver. In one embodiment, the transmitter has at least three transmit antennas and includes a feedback decoding portion configured to recover at least one group-based channel quality indicator provided by a feedback signal from a receiver, wherein each group-based channel quality indicator corresponds to one of a set of transmission layer groupings. The transmitter also includes a modulator portion configured to generate at least one symbol stream and a mapping portion configured to multiplex each symbol stream to at least one transmission layer grouping. The transmitter further includes a pre-coder portion configured to couple the transmission layers to the transmit antennas for a transmission. The receiver includes a decoder portion which is configured to use decoded signals from at least one group to decode the other groups.

Abstract translation: 本公开的实施例提供发射机，接收机和操作发射机和接收机的方法。 在一个实施例中，发射机具有至少三个发射天线，并且包括反馈解码部分，其被配置为恢复由来自接收机的反馈信号提供的至少一个基于组的信道质量指示符，其中每个基于组的信道质量指示符对应于一个 的一组传输层分组。 发射机还包括被配置为生成至少一个符号流的调制器部分和被配置为将每个符号流复用到至少一个传输层分组的映射部分。 发射机还包括预编码器部分，其被配置为将传输层耦合到发射天线用于传输。 接收机包括解码器部分，其被配置为使用来自至少一个组的解码信号来解码其他组。

公开(公告)号：US09155056B2

公开(公告)日：2015-10-06

申请号：US14481894

申请日：2014-09-09

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Anand Ganesh Dabak ,  Eko Nugroho Onggosanusi ,  Badri Varadaharajan

IPC: H04W56/00 ,  H04W36/00 ,  H04B7/26 ,  H04L9/12 ,  H04J11/00

CPC classification number: H04W56/001 ,  H04B7/2681 ,  H04J11/0069 ,  H04J2011/0096 ,  H04L9/12 ,  H04L2209/80 ,  H04W36/0016 ,  H04W56/0015

Abstract: Embodiments of the present disclosure provide a transmitter, a receiver and methods of operating a transmitter and a receiver. In one embodiment, the transmitter includes a synchronization unit configured to provide a primary synchronization signal and a secondary synchronization signal having first and second segments. The transmitter also includes a secondary scrambling unit configured to provide a scrambled secondary synchronization signal, wherein scrambling agents for the first and second segments are derived from a primary synchronization sequence of the primary synchronization signal. The secondary scrambling unit is further configured to provide an additional scrambling of one of the first and second segments, wherein a second scrambling agent is derived from the remaining segment of a secondary synchronization sequence of the secondary synchronization signal. The transmitter further includes a transmit unit configured to transmit the primary synchronization signal and the scrambled secondary synchronization signal.

Abstract translation: 本公开的实施例提供发射机，接收机和操作发射机和接收机的方法。 在一个实施例中，发射机包括配置成提供主同步信号和具有第一和第二段的辅同步信号的同步单元。 发射机还包括辅助加扰单元，其被配置为提供加扰的次同步信号，其中第一和第二段的加扰代码从主同步信号的主同步序列导出。 次加扰单元还被配置为提供第一和第二段中的一个的附加加扰，其中从副同步信号的辅同步序列的剩余段导出第二加扰代码。 发射机还包括被配置为发送主同步信号和加扰的次同步信号的发射单元。