Beam forming using an antenna arrangement

An antenna, virtual antenna technology, applied in antennas, antenna arrays, diversity/multi-antenna systems, etc.

Active Publication Date: 2017-02-22
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] In communication networks, it can be challenging to achieve good performance and capacity for a given communication protocol, its parameters, and the physical environment in which the communication network is deployed

Method used

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  • Beam forming using an antenna arrangement
  • Beam forming using an antenna arrangement
  • Beam forming using an antenna arrangement

Examples

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Embodiment Construction

[0034] The inventive concept will now be described more fully hereinafter with reference to the accompanying drawings, in which certain embodiments of the inventive concept are shown. However, inventive concepts may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided by way of example so that this disclosure will be thorough and complete , and will fully convey the scope of the inventive concept to those skilled in the art. Like numbers refer to like elements throughout this description. Any steps illustrated by dashed lines should be considered optional.

[0035] In general, the codebooks specified in the Long Term Evolution (LTE) telecommunication standard have been designed for use with one-dimensional (1-D) antenna arrays, typically uniform linear arrays. As mentioned above, the maximum number of antenna ports in the LTE Release 10 codebook is eight. This imposes limits on...

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Abstract

There is provided beam forming using an antenna array configured to transmit across an angular sector. A first set of virtual antenna ports is determined by a mapping of physical antenna ports of the antenna array, the first set of virtual antenna ports defining a beam pattern. A first set of reference signals for acquiring channel state information is transmitted over the first set of virtual antenna ports. Angular information about a wireless transceiver device receiving the transmitted first set of reference signals is acquired. The beam pattern is adapted based on an accuracy of the angular information and / or the angular information itself.

Description

technical field [0001] Embodiments presented herein relate to beamforming, and in particular to a method, antenna arrangement and computer program for beamforming. Background technique [0002] In a communication network, it can be challenging to obtain good performance and capacity for a given communication protocol, its parameters, and the physical environment in which the communication network is deployed. [0003] One component of a wireless communication network where achieving good performance and capacity can be challenging is the antenna of a network node configured for wireless communications; to / from another network node, and / or to / from wireless user terminals . [0004] For example, multi-antenna transmission techniques are used in several wireless communication standards, such as the Long Term Evolution (LTE) telecommunication standard of the 3rd Generation Partnership Project (3GPP), in order to increase system capacity and coverage. A specific transmission mo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/06H04W16/28H04B7/08
CPCH04B7/086H04B7/0619H04B7/0684H04B7/0617H04B7/0626H04L5/0023H04L5/0048H01Q21/061H01Q3/26H04W16/28H04B7/0408H04W84/04
Inventor S·彼得森F·阿斯莱
Owner TELEFON AB LM ERICSSON (PUBL)
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