发明名称 |
Tomlinson-harashima precoding with non-overlapping dynamic modulation coding subsets |
摘要 |
A Tomlinson-Harashima Precoding (THP) transmitter transmits data modulated by non-overlapping Dynamic Modulation Coding (DMC) to a receiver. In order to enable the receiver to differentiate between the different modulations of the DMC, a novel non-overlapping DMC is used. The constellations of the non-overlapping DMC are selected such that the result of the modulo operation of the THP maintains the signal levels, belonging to the different constellations, separated. |
申请公布号 |
US9521026(B1) |
申请公布日期 |
2016.12.13 |
申请号 |
US201514732740 |
申请日期 |
2015.06.07 |
申请人 |
Valens Semiconductor Ltd. |
发明人 |
Lida Eyran;Salamon Aviv |
分类号 |
H04L27/36;H04L25/03;H04L27/34 |
主分类号 |
H04L27/36 |
代理机构 |
Active Knowledge Ltd. |
代理人 |
Active Knowledge Ltd. |
主权项 |
1. A Tomlinson-Harashima Precoding transmitter, comprising:
a signal generator configured to produce non-overlapping Dynamic Modulation Coding signals comprising: a first Pulse-Amplitude Modulation constellation of M levels (PAM-M), and a second Pulse-Amplitude Modulation constellation of N levels (PAM-N), wherein M>N; wherein the meaning of producing Dynamic Modulation Coding is that a receiver expects to receive either PAM-M or PAM-N signals, and not just PAM-M signals or just PAM-N signals; wherein the PAM-M and PAM-N constellations have different levels without any overlap thereof; and wherein the Tomlinson-Harashima Precoding transmitter uses modulo K*M, where K is an integer equal to or greater than two; and wherein the result of the modulo K*M operation applied to the PAM-M and PAM-N constellations maintains the signal levels belonging to the different constellations without any overlap thereof. |
地址 |
Hod Hasharon IL |