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Beamforming with Antenna Arrays

An antenna array and beamforming technology, applied in the field of computer program products

Active Publication Date: 2021-10-29
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In communication networks there may be challenges in obtaining 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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  • Beamforming with Antenna Arrays
  • Beamforming with Antenna Arrays
  • Beamforming with Antenna Arrays

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Embodiment Construction

[0049] The inventive concepts will now be described more fully hereinafter with reference to the accompanying drawings, in which certain embodiments of the inventive concepts are shown. However, the 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 as examples so that this disclosure will be thorough and complete, and will The scope of the inventive concept fully conveys to those skilled in the art. Like numbers refer to like elements throughout the specification. Any steps or features indicated by dashed lines should be considered optional.

[0050] figure 1 is a schematic diagram illustrating a communication network 100 in which the embodiments presented herein may be applied. The communication network 100 includes a radio access network 110 , a core network 130 and a service network 140 . The radio access network 110 is operatively connected to a ...

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Abstract

Mechanisms for beamforming using antenna arrays are provided. The method is executed by a network node. The method includes obtaining, from the wireless device, a precoding matrix indicator to be used for transmission to the wireless device. The method includes selecting a codebook from a set of codebooks based on the received indicator, wherein the selected codebook defines a precoding matrix, and wherein the set of codebooks includes a set of codebooks defining variable beamwidths and having the same number of beamwidths for all beamwidths. Codebook for non-zero antenna weights. The method includes precoding a signal transmission from the antenna array to the wireless device using the selected codebook.

Description

technical field [0001] Embodiments presented herein relate to methods, network nodes, wireless devices, computer programs and computer program products for beamforming using antenna arrays. Embodiments presented herein further relate to methods, network nodes, wireless devices, computer programs and computer program products for precoding matrix indicators for signaling antenna arrays. Background technique [0002] In communication networks there may be challenges in obtaining good performance and capacity for a given communication protocol, its parameters and the physical environment in which the communication network is deployed. [0003] For example, multiple antenna techniques can potentially improve the performance of wireless communication networks in terms of data rate and reliability. Performance can be improved in particular if both the transmitting device and the receiving device are equipped with multiple antennas, which results in a multiple-input multiple-outpu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/06H04B7/0456
CPCH04B7/0617H04B7/0456H04B7/0486H04B7/0452H04B7/0413H04B7/0634H04B7/0639H04B7/063
Inventor M·吉尔克S·法克斯埃尔S·彼得松
Owner TELEFON AB LM ERICSSON (PUBL)
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