US Patent Application 17718950. TRANSMIT PRECODING FOR PEAK TO AVERAGE POWER RATIO REDUCTION simplified abstract

TRANSMIT PRECODING FOR PEAK TO AVERAGE POWER RATIO REDUCTION

Inventors

Noam Zach of Kiryat Ono (IL)

Guy Wolf of Rosh Haayin (IL)

Gideon Shlomo Kutz of Ramat Hasharon (IL)

TRANSMIT PRECODING FOR PEAK TO AVERAGE POWER RATIO REDUCTION - A simplified explanation of the abstract

• This abstract for appeared for patent application number 17718950 Titled 'TRANSMIT PRECODING FOR PEAK TO AVERAGE POWER RATIO REDUCTION'

Simplified Explanation

The abstract describes a method to improve the efficiency of a power amplifier in a wireless communication system. The method involves reducing the peak to average power ratio (PAPR) by using a technique called PAPR reduction precoding. This technique modifies the received signal in a way that does not affect performance, resulting in a lower overall transmit PAPR. The transmitting device constructs a frequency domain response to the PAPR reduction precoding and estimates the channel to the receiving device(s). It then applies the PAPR reduction precoding and constructs a multiple input multiple output (MIMO) precoding matrix based on the frequency domain response. The receiving device applies the conjugated frequency domain response to the received signal from the transmitting device and processes a received reference signal using the PAPR reduction precoder.

Original Abstract Submitted

In a wireless communication system, a peak to average power ratio (PAPR) may affect the efficiency of a power amplifier. To reduce a PAPR, a transmitting device may utilize a PAPR reduction precoding that changes a received signal without performance impact so the overall transmit PAPR is reduced. The transmitting device constructs a frequency domain (FD) response to the PAPR reduction precoding, estimates a channel to one or more receiving devices, and applies the PAPR reduction precoding to the estimated channel. The transmitting device constructs a multiple input multiple output (MIMO) precoding matrix considering the FD response of the PAPR reduction precoding and applies the MIMO precoding matrix and the PAPR reduction precoding to an FD signal. A receiving device applies the FD response conjugated to a received FD signal from the transmitting device and processes at least a received reference signal based on the PAPR reduction precoder.