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Wake-up signal with frequency information

A wake-up signal and frequency information technology, applied in power management, wireless communication, advanced technology, etc., can solve the problems of limited frequency domain flexibility and consumption

Active Publication Date: 2019-09-27
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Narrowband wireless devices may always receive trigger frames or TF-Rs on the same frequency, which limits frequency domain flexibility, or may scan different frequencies to locate trigger frames or TF-Rs
However, this means scanning for a trigger frame or TF-R on a fixed frequency or waiting for a trigger frame or TF-R consumes unnecessary power in narrowband wireless devices

Method used

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  • Wake-up signal with frequency information
  • Wake-up signal with frequency information
  • Wake-up signal with frequency information

Examples

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Embodiment Construction

[0037] In the following, embodiments of the present application will be described in detail with reference to the accompanying drawings. It is to be understood that the following description of the embodiments should not be considered in a limiting sense. The scope of the present application is not limited by the embodiments described below or the drawings, which are illustrative only.

[0038] The drawings are to be regarded as schematic representations and elements shown in the drawings are not necessarily shown to scale. Rather, various elements are represented so that their function and general use will be apparent to those skilled in the art. Any connection or coupling between functional blocks, devices, components or physical or functional units shown in the figures and described below may also be realized by indirect connections or couplings. Coupling between components can be established through wired or wireless connections. Functional blocks may be implemented in ...

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PUM

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Abstract

The invention relates to a method for operating a first wireless device (100) in a wireless network. At least one target wireless device (200) is determined which should receive a wake up signal by which a wake up receiver of the at least one target wireless device is informed that a main transceiver of the target wireless device should be ready for receiving at least a first message from the first wireless device. Furthermore a frequency is determined at which the at least first message should be transmitted to the at least one target wireless device, and frequency information is encoded into the wake up signal with which at least one target wireless device is informed about the frequency at which the at least first message will be received. The wake up signal is transmitted with the encoded frequency information to the at least one target wireless device.

Description

technical field [0001] The present application relates to a method for operating a first wireless device in a wireless network to send a wake-up signal to a target wireless device. Furthermore, the present application relates to a method for operating a target wireless device and a corresponding first wireless device and the target wireless device. Furthermore, a system, computer program and carrier comprising a target wireless device and a first wireless device are provided. Background technique [0002] Wake-up receivers (WUR) are known in the art, which enable power-efficient data reception with only slightly increased delay. A low power wake-up receiver can be provided in addition to the main transceiver, which is turned off unless there is something to transmit or receive. The wake-up receiver wakes up the master transceiver when it has a message to receive. The message can be a data message or a control message. The main transceiver is used for data transmission an...

Claims

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Application Information

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IPC IPC(8): H04W52/02
CPCH04W52/0235Y02D30/70H04W52/0229H04W52/0248
Inventor P·阿明L·F·德尔卡皮奥韦加
Owner TELEFON AB LM ERICSSON (PUBL)
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