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Determination of complex weight vectors for radio transceiver device

A radio transceiver, weight vector technology, applied in radio transmission systems, antennas, electrical components and other directions, can solve problems such as untransmittable reference signals

Active Publication Date: 2020-02-18
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This is because it is not possible to send reference signals against isolated antenna elements

Method used

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  • Determination of complex weight vectors for radio transceiver device
  • Determination of complex weight vectors for radio transceiver device
  • Determination of complex weight vectors for radio transceiver device

Examples

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Embodiment Construction

[0035] 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, 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 illustration so that this disclosure will be thorough and complete, and will not be construed as limited to the embodiments set forth herein; The scope of the concept fully conveys to those skilled in the art. Throughout the description, the same reference numerals refer to the same elements. Any steps or features shown by dashed lines should be considered optional.

[0036] figure 2 is a schematic diagram illustrating a communication network 100 in which embodiments presented herein may be applied. The communication network 100 may be a third generation (3G) communication network, a fourth generation ...

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PUM

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Abstract

There is provided mechanisms for determining complex weight vectors. A method is performed by a radio transceiver device. The method comprises obtaining measurements of reference signals. The reference signals are transmitted by another radio transceiver device by applying precoding weight vectors in a sequential order at an analog antenna array of said another radio transceiver device. The precoding weight vectors as well as the sequential order are known to the radio transceiver device. The method comprises determining channel estimates for each individual antenna element of the antenna array by using the measurements in combination with knowledge of the precoding weight vectors and the sequential order. The method comprises determining complex weight vectors to be used for subsequent data transmission from said another radio transceiver device based on the channel estimates. The method comprises providing an indication of the complex weight vectors to said another radio transceiverdevice.

Description

technical field [0001] Embodiments presented herein relate to methods, radio transceiver arrangements, computer programs and computer program products for determining a reweighting vector and for obtaining a reweighting vector. Background technique [0002] In a communication network, 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, frequency bands at many different carrier frequencies may be required for future generations of mobile communication systems. For example, such low frequency bands may be required to achieve adequate network coverage for end devices, and higher frequency bands (e.g., at millimeter wavelength (mmW), i.e., near and above 30 GHz) may be required to achieve the desired network capacity . In general, the propagation characteristics of radio channels at high frequencies are more challe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/0456H04B7/06H04B7/08
CPCH04B7/063H04B7/0695H04B7/088H04B7/0456H04B7/0617H01Q3/40H01Q3/2652H04B7/0854
Inventor F·阿特莱S·彼得松A·尼尔松
Owner TELEFON AB LM ERICSSON (PUBL)