1. WUR Use Cases and Requirements
Month Year
doc.: IEEE yy/xxxxr0
Jan 2017
WUR Use Cases and Requirements
Date:
Authors:
Name
Affiliation
Address
Phone
Yong CHENG
Huawei Device
Ping FANG
Yunsong YANG
Yong CHENG, et. al., Huawei
John Doe, Some Company

2. Jan 2017
Abstract
In this contribution, two WUR use cases with different operation modes are discussed, and requirements are summarized for each use case.
Yong CHENG, et. al., Huawei

3. UC1: Synchronized wakeup in sensor networks
Jan 2017
UC1: Synchronized wakeup in sensor networks
Scenario
In home network，tens or even hundreds of battery driven sensors (STA) are connected to home AP for security, control, heating, etc.
Sensors support real-time status checking via AP, besides periodical data reporting.
Wakeup operation
Home AP wakes up smart sensors for real-time status checking and/or configuration.
Requirements
The number of wakeup packets (WUPs) for each STA should be minimized to reduce channel occupation, considering the large number of STAs in the network.
Synchronized wakeup should be supported by AP and STAs.
AP may send periodical synchronization messages to WUR.
WUR in STA may work in duty-cycle mode.
AP may send WUP during STA WUR’s ON time.
First WUP to WUR, then messages via main radio
smart sensors
Yong CHENG, et. al., Huawei

4. UC2: Unsynchronized wakeup for wearable devices
Jan 2017
UC2: Unsynchronized wakeup for wearable devices
Scenario
For personal network, smartwatch and other wearables (STAs) are connected to smartphone.
A smartwatch or medical sensors may make an emergency call via smartphone (rarely occur); Incoming calls or message notifications may be delivered to a smartwatch.
Wakeup operation
Smartphone wakes up smartwatch for incoming call or message notification.
Smartwatch wakes up smartphone to make an emergency call.
Requirements
Both AP and STA need to be power-efficient.
Unsynchronized mode should be supported by both AP and STA.
Synchronization messages may be avoided.
WURs in AP and STA may work in duty-cycle mode.
AP may send multiple WUPs to wakeup STA, and vice versa.
Hiking/running
SoftAP with WUR
STA/Wearable with WUR
First WUP to WUR, then messages via main radio
SoftAP and STA wake up each other
Yong CHENG, et. al., Huawei

5. Summary of use case requirements
Jan 2017
Summary of use case requirements
Two different working modes for WUR wakeup operations
Synchronized mode for sensor network with a large number of sensors/STAs.
Unsynchronized mode for wearable devices with a few wearables/STAs.
Synchronized mode
AP may send periodical synchronization messages to WUR to maintain synchronization.
WUR in STA may work in duty-cycle mode.
AP may send WUPs during STA WUR’s ON time for wakeup.
Unsynchronized mode
Synchronization messages may be avoided.
WURs in STA and AP may work in duty-cycle mode.
AP may send multiple WUPs to wakeup STA, and vice versa.
Yong CHENG, et. al., Huawei