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Method and apparatus for energy efficient transmission and reception of a signal using aliasing

A technology for aliasing and transmitting signals, applied in the field of long-distance communication, it can solve the problems of not being used, the maximum transmission power limit, etc., and achieve the effect of low consumption

Pending Publication Date: 2021-02-02
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the other hand, due to regulatory requirements, the maximum transmit power that can be used is often limited by the power spectral density PSD
That is, although higher total transmit power will be allowed, this cannot be used if the bandwidth of the signal is too small

Method used

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  • Method and apparatus for energy efficient transmission and reception of a signal using aliasing
  • Method and apparatus for energy efficient transmission and reception of a signal using aliasing
  • Method and apparatus for energy efficient transmission and reception of a signal using aliasing

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Embodiment Construction

[0045] The present invention will be presented as applied to a specific system with specific parameters in order to more easily describe the core of the invention. As will be apparent to those skilled in the art, the ideas presented here are readily adapted to other systems with possibly very different parameters.

[0046] figure 1 The steps involved in the method 10 according to the present disclosure are shown. In a first generation step 20, the transmitting device generates a transmission signal to be transmitted to the receiving device. The transmission signal is generated such that the receiving device will undersample the signal. Those skilled in the art understand that it may be necessary to know the sampling frequency or sampling used by the receiving device. This information may be known a priori due to the fact that such sampling rate may be part of a regulatory requirement or that the sampling rate may be a standard for a particular type of signal, such as a radi...

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PUM

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Abstract

A method of transmitting a signal in a wireless communication network from a transmitting device to a receiving device, wherein said receiving device comprises an Analog to Digital Converter, ADC, arranged to sample a received signal at a predetermined sampling frequency. The method comprising the steps of generating (20), by said transmitting device, said transmission signal, wherein a bandwidthof said transmission signal is such that aliasing components will be created by said ADC upon sampling said transmission signal, and wherein said transmission signal is generated in such a way that the aliasing components have a same phase as a corresponding sampled low frequency component of said transmission signal thereby contributing constructively to said low frequency component of said transmission signal, and transmitting (40), by said transmitting device, said transmission signal to said receiving device.

Description

technical field [0001] The present disclosure relates generally to the field of telecommunications, and more particularly to improving the energy efficiency of transceivers in telecommunications systems. The present disclosure particularly relates to methods and devices for improving the energy efficiency of wake-up receivers. Background technique [0002] In the field of wireless communications, energy efficient transmission and reception is becoming more and more important. The main reason for this is the expected massive growth of low-cost devices for the Internet of Things (IoT). [0003] Energy efficiency can mean two different things. On the one hand, it can involve the transmitter side, and one should be able to use the lowest possible power to transmit information, either just to save energy, or because there may be regulatory limitations on what is allowed. On the other hand, it can relate to the energy required to receive a signal. In general, one can trade pow...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W52/02
CPCH04B1/0025H04W52/0229H04W52/028H04L27/2647H04L27/2602H04L27/2626Y02D30/70H04L27/18
Inventor L·威廉松M·洛佩兹
Owner TELEFON AB LM ERICSSON (PUBL)
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