18047559. DMRS WITH DYNAMIC AND CONTROLLABLE PAPR PROPERTIES simplified abstract (QUALCOMM Incorporated)

DMRS WITH DYNAMIC AND CONTROLLABLE PAPR PROPERTIES

Organization Name

QUALCOMM Incorporated

Inventor(s)

Igor Gutman of Hod Hasharon (IL)

Junyi Li of Fairless Hills PA (US)

Tingfang Ji of San Diego CA (US)

Joseph Patrick Burke of Carlsbad CA (US)

Pushkar Bajirao Kulkarni of San Diego CA (US)

Abdelrahman Mohamed Ahmed Mohamed Ibrahim of San Diego CA (US)

Juergen Cezanne of Ocean Township NJ (US)

Tao Luo of San Diego CA (US)

Peter Gaal of San Diego CA (US)

DMRS WITH DYNAMIC AND CONTROLLABLE PAPR PROPERTIES - A simplified explanation of the abstract

This abstract first appeared for US patent application 18047559 titled 'DMRS WITH DYNAMIC AND CONTROLLABLE PAPR PROPERTIES

Simplified Explanation

The patent application describes a method for generating and transmitting Modified DMRS (MDMRS) to match the nonlinear impact of DMRS and data in different types of OFDM waveforms. The MDMRS has a Peak-to-Average Power Ratio (PAPR) distribution that matches the PAPR distribution of the signal including data in an uplink channel. By transmitting MDMRS along with data, the network entity can compensate for any Error Vector Magnitude (EVM) that may occur due to PAPR reduction by a nonlinear operator of the UE, thereby improving communication performance.

• MDMRS allows matching of nonlinear model impact between DMRS and data in DFT-s-OFDM and CP-OFDM waveforms.
• MDMRS has a PAPR distribution matching the PAPR distribution of the signal including data in an uplink channel.
• The target PAPR of MDMRS is based on the modulation scheme of the data.
• MDMRS helps compensate for any EVM that may occur due to PAPR reduction by a nonlinear operator of the UE.

Potential Applications

The technology described in the patent application could be applied in wireless communication systems, specifically in improving the performance of uplink channels by matching the nonlinear impact of DMRS and data.

Problems Solved

1. Nonlinear impact mismatch between DMRS and data in different OFDM waveforms. 2. Error Vector Magnitude (EVM) issues due to PAPR reduction by a nonlinear operator of the UE.

Benefits

1. Improved communication performance in uplink channels. 2. Enhanced signal quality by compensating for EVM.

Potential Commercial Applications

Optimizing wireless communication systems for better performance in uplink channels.

Possible Prior Art

There may be prior art related to techniques for compensating for nonlinear effects in OFDM waveforms, but specific information on prior art related to matching DMRS and data in different OFDM waveforms is not provided in the abstract.

How does the modulation scheme of the data impact the target PAPR of MDMRS?

The abstract mentions that the target PAPR of MDMRS is based on the modulation scheme of the data. It would be interesting to know how different modulation schemes affect the PAPR requirements of MDMRS.

What specific nonlinear operators are used by the UE to reduce PAPR and how do they affect communication performance?

The abstract mentions that the UE uses a nonlinear operator to reduce PAPR, which helps compensate for EVM. Understanding the specific nonlinear operators and their impact on communication performance would provide more insight into the technology described in the patent application.

Original Abstract Submitted

Aspects are provided for generation and transmission of MDMRS which allow matching of nonlinear model impact or properties between DMRS and data in DFT-s-OFDM waveforms as well as CP-OFDM waveforms. A UE transmits, to a network entity, an MDMRS generated from a DMRS. The MDMRS has a PAPR distribution matching a PAPR distribution of a signal including data in an uplink channel. A target PAPR of the MDMRS is based on a modulation scheme of the data. The UE also transmits the data in the uplink channel, where the uplink channel includes a PUCCH or a PUSCH. As a result of the ability of MDMRS to match the nonlinear impact of DMRS and PUSCH or PUCCH, the network entity may compensate for any EVM that may occur as a result of PAPR reduction by a nonlinear operator of the UE, and communication performance may thereby be improved.