Method and apparatus for transmitting channel quality indicator information of beams in communication system

a technology of communication system and beam, applied in the direction of transmission monitoring, frequency-division multiplex, instruments, etc., can solve the problems of heavy attenuation of signals, increased feed-back overhead, and difficult to create the rich scattering environment outdoors, so as to reduce feed-back overhead

Inactive Publication Date: 2016-06-30
ELECTRONICS & TELECOMM RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent aims to offer a technique for transmitting information about the quality of channels in a communication system, while minimizing the feedback required for multiple-beam operation.

Problems solved by technology

On the contrary, attenuation of a signal is heavy in a millimeter wave band and a radio wave reflection characteristic is not also excellent in a building wall, and the like, and as a result, it is not easy to create the rich scattering environment outdoors.
However, when the number of beams which the base station simultaneously uses increases, the CQI information which the terminal needs to feed back to the base station also increases, and as a result, feed-back overhead increases.

Method used

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Embodiment Construction

[0034]In the following detailed description, only certain exemplary embodiments of the present invention have been shown and described, simply by way of illustration. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature and not restrictive. Like reference numerals designate like elements throughout the specification.

[0035]Throughout the specification and all claims, unless explicitly described to the contrary, the word “comprise” and variations such as “comprises” or “comprising”, will be understood to imply the inclusion of stated elements but not the exclusion of any other elements.

[0036]Throughout the specification, a terminal may be designated as a mobile terminal (MT), a mobile station (MS), an advanced mobile station (AMS), a high reliability mobile station (HR-...

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Abstract

When a terminal of a mobile communication system using a plurality of beams receives information on a channel quality indicator (CQI) transmission mode from a base station, the terminal measures a CQI of a beam to feed back the CQI information according to the CQI transmission mode, transmits information of the beam to feed back the CQI information according to the CQI transmission mode, and thereafter, feeds back the measured CQI information of the beam to the base station.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]This application claims priority to and the benefit of Korean Patent Application Nos. 10-2014-0192655 and 10-2015-0185734 filed in the Korean Intellectual Property Office on Dec. 29, 2014 and Dec. 24, 2015, the entire contents of which are incorporated herein by reference.BACKGROUND OF THE INVENTION[0002](a) Field of the Invention[0003]The present invention relates to a method and an apparatus for transmitting channel quality indicator information of beams in a communication system, and particularly, to a method and an apparatus for feeding back channel quality indicator (CQI) information for each beam in a terminal of a mobile communication system operating multiple beams.[0004](b) Description of the Related Art[0005]Since most mobile communication systems including a long term evolution (LTE) system in the related art, and the like use a frequency band of 30 GHz or less, a rich scattering environment can be assumed, in which multiple clu...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): H04L1/00H04B7/06H04W24/10H04B17/309
CPCH04L1/0026H04B17/309H04W24/10H04B7/0639H04B7/0632H04B7/0636H04B7/066
Inventor PARK, JUHOSONG, YOUNG SEOGLEE, JUN HWANCHOI, EUN-YOUNGKO, YOUNG JOBANG, SEUNG CHAN
Owner ELECTRONICS & TELECOMM RES INST
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