Beam forming using an antenna arrangement

A technology of beams and antennas, applied in the field of beamforming

Inactive 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

The method includes determining for each sub-sector a corresponding set of virtual antenna ports

Method used

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

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Embodiment Construction

[0031] 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 to the Those skilled in the art fully convey the scope of the inventive concept. Like reference numerals refer to like elements throughout this description. Any steps illustrated with dashed lines should be considered optional.

[0032] In a general sense, the codebooks specified in the Long Term Evolution (LTE) telecommunication standard are designed for use with one-dimensional (1-D) antenna arrays, which are typically uniform linear arrays. As noted above, the maximum number of antenna ports in the LTE Release 10 codebook is eight. Thi...

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Abstract

There is provided beam forming using an antenna array. The antenna array is configured to transmit across an angular sector. The angular sector is divided into at least two sub-sectors by respective port weights being applied to respective physical antenna ports of the antenna array. A respective set of virtual antenna ports is determined for each sub-sector. A first set of reference signals for acquiring channel state information on the set of virtual antenna ports is alternatingly transmitted in each one of the at least two sub-sectors.

Description

technical field [0001] Embodiments presented herein relate to beamforming, and in particular, to methods, antenna arrangements and computer programs for beamforming. Background technique [0002] In a communication network, it can be challenging to obtain good performance and capacity for a given communication protocol, the parameters of the communication protocol, and the physical environment in which the communication network is deployed. [0003] One component of a wireless communication network that can be a challenge in obtaining good performance and capacity is the antenna of the network configured for wireless communication; either to / from another network node, and / or to / from a wireless user terminal. [0004] For example, multiple antenna transmission techniques are used in several wireless communication standards, such as the Long Term Evolution (LTE) telecommunication standard of the Third Generation Partnership Project (3GPP), in order to increase system capacity...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/06H04W16/28H04B7/08
CPCH04B7/0617H04B7/086H04W16/28H04B7/0417H04B7/0491H04B7/0626H01Q21/061H04L5/0026H04L5/0048
Inventor S·彼得森F·阿斯莱
Owner TELEFON AB LM ERICSSON (PUBL)
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