Waveform-coding for multicarrier wake up radio frame

A waveform coding, multi-carrier modulation technology, applied in wireless communication, modulated carrier system, AM carrier system and other directions

Active Publication Date: 2019-02-05
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A wake-up mechanism may require a wake-up signal to be communicated between the AP and the device

Method used

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  • Waveform-coding for multicarrier wake up radio frame
  • Waveform-coding for multicarrier wake up radio frame
  • Waveform-coding for multicarrier wake up radio frame

Examples

Experimental program
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Embodiment Construction

[0046] A user equipment or station, such as a machine type device or a sensor device, intended to operate in a wireless network such as a wireless local area network (WLAN), may have an independent low Power wake up radio (Wake Up Radio, WUR) circuit. A WUR circuit is typically a low-power receiver circuit designed to receive and detect wake-up signals, and in some examples may be a simplified version of the main WLAN transceiver circuit, and may be on an integrated circuit (IC) or chip accomplish. The WUR circuitry communicates with the WLAN transceiver circuitry or other equivalent circuitry in the device so that the WLAN transceiver circuitry can sleep and save power until the WUR circuitry wakes up the WLAN transceiver circuitry. The WUR circuit wakes up the WLAN transceiver circuit or other equivalent circuit upon detection of a wake-up signal from the access point AP (typically the AP associated with the WLAN device).

[0047] For this, figure 1 is a schematic diagram...

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Abstract

Waveform-coding is applied to map successive on-off-keying (OOK) data bits onto successive multicarrier modulated symbols in time domain, wherein each multicarrier modulated symbol includes a set of sub-carriers in which alternating sub-carriers are set to ones and zeros in frequency domain. The waveform coded multicarrier modulated symbols are up-converted to a carrier frequency to provide a datasignal that is transmitted over a wireless channel.

Description

[0001] Related applications [0002] The present invention requires the U.S. Provisional Patent Application No. 62 / 455,365 filed on February 6, 2017, entitled "Waveform-Coding for Multicarrier Wake Up Radio Frame" and the invention titled Priority priority to U.S. Patent Application No. 15 / 654,250 for "Waveform-Coding for Multicarrier Wake Up Radio Frame," the entire contents of which are incorporated by reference in this text. technical field [0003] The present application relates to methods and systems for communicating using low data rates using wake-up radios and the like. Background technique [0004] In wireless communications, the efficient use of available power is one of the main goals of system design. Typically, wireless local area network (WLAN) devices in Internet of Things (IoT) applications rely on limited power sources (eg, powered by rechargeable or non-rechargeable batteries). Examples of such devices may include sensor devices located in the far field...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W52/02
CPCH04L25/4904H04L27/04H04L27/06H04L27/2627Y02D30/70H03M1/127H04J13/004H04J13/12H04L25/26H04B2201/709709
Inventor 徐正勳奥萨马·阿布勒·马格德区国琛
Owner HUAWEI TECH CO LTD
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