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Method and device for receiving PTRS for cancelling phase noise in wireless communication system

a wireless communication system and phase noise cancellation technology, applied in the field of wireless communication systems, can solve problems such as significant path loss, and achieve the effects of accurate decoding, improving the efficiency of signal transmission for phase noise cancellation, and improving the phase noise cancellation procedur

Active Publication Date: 2019-09-26
LG ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present patent is about improving the decoding of signals in a wireless communication system by canceling out phase noise. It provides methods for efficient signal transmission for phase noise cancellation and improves the receiving-side operation by providing information on the signal transmission for phase noise cancellation. Additionally, it provides a method for transmitting signals for phase noise cancellation while considering compensation for phase noise and reference signal overhead. Overall, the patent provides technical solutions for better signal quality in wireless communication systems.

Problems solved by technology

Due to such a center frequency feature, significant path loss may occur in a shadow area in the mmWave communication system.

Method used

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  • Method and device for receiving PTRS for cancelling phase noise in wireless communication system
  • Method and device for receiving PTRS for cancelling phase noise in wireless communication system
  • Method and device for receiving PTRS for cancelling phase noise in wireless communication system

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Embodiment Construction

[0028]Although the terms used in the present invention are selected from generally known and used terms, terms used herein may be varied depending on operator's intention or customs in the art, appearance of new technology, or the like. In addition, some of the terms mentioned in the description of the present invention have been selected by the applicant at his or her discretion, the detailed meanings of which are described in relevant parts of the description herein. Furthermore, it is required that the present invention is understood, not simply by the actual terms used but by the meanings of each term lying within.

[0029]The following embodiments are proposed by combining constituent components and characteristics of the present invention according to a predetermined format. The individual constituent components or characteristics should be considered optional factors on the condition that there is no additional remark. If required, the individual constituent components or charac...

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Abstract

A method for operating a user equipment in a wireless communication is provided as an embodiment of the present invention. The method may include: receiving modulation and coding scheme (MCS) information for each of two or more codewords from a base station (BS); determining a demodulation reference signal (DMRS) antenna port to which a phase tracking reference signal (PTRS) antenna port is mapped based on the MCS information; and receiving a PTRS based on the DMRS antenna port, wherein a DMRS antenna port with the lowest index among one or more DMRS antenna ports included in a codeword with the highest MCS among the two or more codewords may be determined as the DMRS antenna port.

Description

TECHNICAL FIELD[0001]The present invention relates to a wireless communication system, and more particularly, to a method for receiving a phase tracking reference signal (PTRS) for phase noise cancellation in a system and apparatus therefor.BACKGROUND ART[0002]An ultra-high frequency radio communication system using mmWave is configured to operate at a center frequency in the range of several GHz to several tens of GHz. Due to such a center frequency feature, significant path loss may occur in a shadow area in the mmWave communication system. Considering that a synchronization signal should be stably transmitted to all user equipments (UEs) located within coverage of a base station (BS), the synchronization signal needs to be designed and transmitted in consideration of the potential deep-null phenomenon, which may occur due to the above-described ultra-high frequency band characteristic, in the mmWave communication system.DISCLOSURE OF THE INVENTIONTechnical Task[0003]The present i...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): H04B1/10H04L5/00H04B7/0456H04L1/00H04B7/06
CPCH04L1/0003H04L5/0048H04L1/0026H04B7/0473H04B1/10H04B7/0632H04L1/0009H04L5/006H04L5/0091H04L5/0023H04L25/0224H04L27/266H04L27/2675H04L1/0047H04L5/005H04L27/20H04W72/00H04L5/00H04L1/00H04B7/06
Inventor LEE, KILBOMKANG, JIWONKIM, KIJUNKIM, KYUSEOKYUM, KUNIL
Owner LG ELECTRONICS INC
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