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Wake-up signal transmission

A wake-up signal and signal generator technology, applied in transmission modification based on link quality, wireless communication, channel coding adjustment, etc.

Active Publication Date: 2020-04-21
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Preferably, such an approach should not impose stricter requirements on WUR implementations than non-parallel WUS transfers

Method used

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Embodiment Construction

[0098] As mentioned above, it should be emphasized that when used in this specification, the term "comprises / comprises" specifies the presence of stated features, integers, steps or components, but does not exclude the presence or addition of one or more other features, Integers, steps, components, or combinations thereof. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise.

[0099] Embodiments of the present disclosure will be more fully described and illustrated hereinafter with reference to the accompanying drawings. However, the solutions disclosed herein may be implemented in many different forms and should not be construed as limited to the embodiments set forth herein.

[0100] In general, it should be noted that the expression "in time" as used herein can be interpreted as "in the time domain". For example, organizing two or more signals in time to at least partially o...

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Abstract

A method of a network node is disclosed. The method is for concurrently transmitting two or more wake-up signals (WUS) using an signal generator applying an signal generator symbol rate, wherein eachWUS is for reception by a wake-up receiver (WUR) of a respective wireless communication device. The method comprises selecting a respective Manchester coding symbol rate for each of the two or more WUS, wherein all of the selected respective Manchester coding symbol rates are different from each other, and all Manchester codes having the selected respective Manchester coding symbol rates are orthogonal to each other. The method also comprises generating each of the two or more WUS using the signal generator and application of a Manchester code of the selected respective Manchester coding symbol rate, and multiplexing the two or more WUS for transmission in a WUS message. A corresponding arrangement, a network node and a computer program product are also disclosed, as well as counterparts for a wireless communication device.

Description

technical field [0001] The present disclosure relates generally to the field of wireless communications. More specifically, the present disclosure relates to the transmission of wake-up signals in wireless communication systems. Background technique [0002] Wake-up receivers (WUR; also sometimes called wake-up radios) significantly reduce the power consumption of wireless communication receivers. One aspect of the WUR concept is that a WUR can be based on a very loose architecture, as it only needs to be able to detect the presence of a wake-up signal (WUS) and cannot be used to receive data or control signaling other than WUS. [0003] Ongoing activities within the Institute of Electrical and Electronics Engineers (IEEE) 802.11 Task Group (TG), known as IEEE 802.11ba, aim to standardize the physical (PHY) layer and media access for the WUR to be used as a companion radio to the primary IEEE 802.11 radio control (MAC) layer to significantly reduce power consumption. [0...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W52/02
CPCH04W52/0229H04W52/028Y02D30/70H04W52/02H04L1/0011H04L1/0036H04W56/001
Inventor L·维尔赫姆森M·洛佩兹D·松德曼
Owner TELEFON AB LM ERICSSON (PUBL)
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