Wake up signal for cellular communication in unlicensed spectrum

A wake-up signal, cellular technology, applied in wireless communication, sustainable communication technology, climate sustainability, etc., can solve problems such as UE device battery life pressure

Active Publication Date: 2020-05-05
APPLE INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Also, increasing the functionality of UE devices can put a significant strain on the battery life of UE devices

Method used

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  • Wake up signal for cellular communication in unlicensed spectrum
  • Wake up signal for cellular communication in unlicensed spectrum
  • Wake up signal for cellular communication in unlicensed spectrum

Examples

Experimental program
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Embodiment Construction

[0020] acronym

[0021] Various acronyms are used throughout this disclosure. The definitions of the most prominently used acronyms that may appear throughout this disclosure are as follows:

[0022] UE: user equipment

[0023] RF: radio frequency

[0024] BS: base station

[0025] GSM: Global System for Mobile Communications

[0026] UMTS: Universal Mobile Telecommunications System

[0027] LTE: Long Term Evolution

[0028] NR: New Radio Components

[0029] TX: transmit

[0030] RX: receive

[0031] RAT: radio access technology

[0032] the term

[0033] The following is a glossary of terms that will appear in this disclosure:

[0034] memory medium - any of various types of non-transitory memory devices or storage devices. The term "storage medium" is intended to include installation media such as CD-ROMs, floppy disks, or tape devices; computer system memory or random access memory such as DRAM, DDR RAM, SRAM, EDO RAM, Rambus RAM, etc.; non-volatile memory s...

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Abstract

This disclosure relates to using a wake up signal in conjunction with cellular communication in unlicensed spectrum. A cellular base station may provide a wake up signal on an unlicensed frequency channel after successful completion of a listen-before-talk procedure. The wake up signal may include a preamble configured for coherent detection, and information indicating channel occupancy time for acellular communication by the cellular base station and a cell identifier for the cellular base station. A wireless device may monitor the unlicensed frequency channel for a wake up signal, and may determine whether to monitor the unlicensed frequency channel for control channel signaling based on whether a wake up signal is received, and potentially also based on the contents of the wake up signal if a wake up signal is received.

Description

technical field [0001] The present application relates to wireless communications, and more particularly to systems, apparatus and methods for providing wake-up signals for cellular communications in unlicensed spectrum. Background technique [0002] The use of wireless communication systems is growing rapidly. In recent years, wireless devices such as smartphones and tablets have become increasingly sophisticated. In addition to supporting phone calls, many mobile devices (i.e., user equipment equipment or UEs) now provide access to the Internet, e-mail, text messaging, and navigation using the Global Positioning System (GPS), and are able to operate Sophisticated applications. Additionally, a number of different wireless communication technologies and standards exist. Some examples of wireless communication standards include GSM, UMTS (e.g., associated with WCDMA or TD-SCDMA air interfaces), LTE, LTE-Advanced (LTE-A), NR, HSPA, 3GPP2CDMA2000 (e.g., 1xRTT, 1xEV-DO, HRPD ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W24/02H04W52/02H04W72/04H04W72/08
CPCH04W24/02H04W72/0446H04W52/0248H04W72/542H04W74/0808H04W52/0229Y02D30/70H04W52/0212H04W74/008H04W74/006H04W74/0816
Inventor 许芳丽张大伟F·贝尔霍尔胡海静孙海童浦天延曾威张维金唯哲陈玉芹S·M·阿马尔福
Owner APPLE INC
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