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Method and apparatus for multiple-input multiple-output communication

A multi-input, multi-output technology, applied in the direction of transmission systems, radio transmission systems, electrical components, etc., can solve problems affecting the statistical characteristics of wireless channels, and achieve the effect of improving performance and simplifying feedback

Active Publication Date: 2019-08-23
ALCATEL LUCENT SHANGHAI BELL CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This antenna arrangement leads to an increase in the number of antenna ports and a change in the antenna structure, which will affect the statistical characteristics of the wireless channel

Method used

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  • Method and apparatus for multiple-input multiple-output communication
  • Method and apparatus for multiple-input multiple-output communication
  • Method and apparatus for multiple-input multiple-output communication

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Embodiment Construction

[0038] In the following description, numerous details are set forth for purposes of explanation. However, one of ordinary skill in the art will recognize that embodiments of the disclosure may be practiced without the use of these specific details. Thus, the present disclosure is not intended to be limited to the embodiments shown but is to be accorded the widest scope consistent with the principles and features described herein.

[0039] It should be understood that the terms "first", "second", etc. are only used to distinguish one element from another element. In fact, the first element can also be called the second element, and vice versa. In addition, it should also be understood that "comprising", "comprising" is only used to describe the existence of stated features, elements, functions or components, but does not exclude the existence of one or more other features, elements, functions or components.

[0040] For ease of explanation, embodiments of the present disclosu...

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Abstract

The invention provides a method for MIMO communication. The method comprises that information for long-term precoding is received from equipment, the information for long-term precoding indicates a first wave beam group aimed at the first dimension and a second wave beam group aimed at the second dimension to form a 2D wave beam grid, and wave beams in the wave beam grid or wave beams in subsets of the wave beam grid are mapped into a wave beam set according to a mapping rule; and short-term precoding information comprises a one-dimensional index is received from the equipment, and indicates to select wave beams from the wave beam set; and according to the long-term precoding information and the short-term precoding information, data of MIMO precoding is sent to the equipment. The invention also provides a corresponding device. According to embodiments of the invention, feedback of precoding information is simpler and more efficient.

Description

technical field [0001] Embodiments of the present disclosure relate to wireless communications, and more particularly multiple-input multiple-output (MIMO) communications. Background technique [0002] With the development of wireless communication, the demand for data rate continues to increase, and frequency resources become more scarce at the same time. In order to improve resource utilization efficiency, MIMO technology has been proposed. MIMO technology can utilize air space to transmit multiple data streams simultaneously on the same time-frequency resource, thereby effectively improving system throughput. [0003] Two-dimensional (2D) MIMO transmission has been studied and adopted by some wireless communication systems, such as the Long Term Evolution (LTE) system specified by the 3rd Generation Partnership Project (3GPP). For 2D-MIMO, conventional antenna arrays are arranged horizontally to form beams on the horizontal plane. In order to exploit the potential gain ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/0413
CPCH04B7/0413H04B7/0456
Inventor 李迅张闽杨涛
Owner ALCATEL LUCENT SHANGHAI BELL CO LTD
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