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Apparatus and method for channel state information feedback in wireless communication system

A wireless communication system and channel information technology, applied in the field of wireless communication systems, can solve the problems of reducing transmission efficiency

Active Publication Date: 2017-05-24
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, although the number of antennas increases, when using an 802.11ac-based method, the time required for feedback increases as the number of STAs increases
This reduces the efficiency of transfers in concentrated areas that cause congestion

Method used

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  • Apparatus and method for channel state information feedback in wireless communication system
  • Apparatus and method for channel state information feedback in wireless communication system
  • Apparatus and method for channel state information feedback in wireless communication system

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Embodiment Construction

[0047] Embodiments of the present disclosure are described in detail with reference to the accompanying drawings. The same or similar components may be denoted by the same or similar reference numerals even though they are shown in different drawings. Detailed descriptions of structures or processes known in the art may be omitted to avoid obscuring the subject matter of the present disclosure.

[0048] The terms described here are defined in consideration of the functions of the present disclosure, but the meanings of the terms may be changed according to user, operator's intention, or custom. Therefore, terms should be defined based on the content as a whole.

[0049] The present disclosure is capable of various modifications and various embodiments, the specific embodiments of which are more fully described with reference to the accompanying drawings. However, it should be understood that the present disclosure is not limited to the specific embodiments, but includes all ...

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Abstract

The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). Methods and apparatuses are provided for devices in a wireless communication system. Information requesting a channel estimation by at least one second device is transmitted from a first device to the at least one second device. Channel information is received at the first device as feedback from the at least one second device.

Description

technical field [0001] The present disclosure generally relates to wireless communication systems, and more particularly, to an apparatus and method for feeding back channel information in a wireless communication system. Background technique [0002] In order to meet the demand for wireless data traffic that has increased since the deployment of 4G communication systems, efforts have been made to develop improved 5G or quasi-5G communication systems. Therefore, the 5G or quasi-5G communication system is also called "super 4G network" or "post-LTE system". [0003] 5G communication systems are considered to be implemented in higher frequency (mmWave) frequency bands, such as the 60GHz band, in order to achieve higher data rates. In order to reduce the propagation loss of radio waves and increase the transmission distance, beamforming, massive multiple-input multiple-output (MIMO), full-dimensional MIMO (FD-MIMO), array antenna, analog beamforming, and large-scale antenna te...

Claims

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Application Information

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IPC IPC(8): H04B7/06H04W28/06
CPCH04B7/0617H04B7/0619H04L1/0026H04L1/0027H04L1/0028H04L1/04H04L2001/0093
Inventor 金大铉吴钟浩郑柄薰
Owner SAMSUNG ELECTRONICS CO LTD
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