Transcript Standards for Smart Home Application Developers

CURRENT AND FUTURE WI-FI
SYSTEM LEVEL REQUIREMENTS
FRANK DEN HARTOG
TNO
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THE NEED FOR WI-FI REQUIREMENTS
• Many communication level requirements for WiFi
technology already specified by bodies such as
IEEE802.11 and WiFi Alliance
• Additional, system level requirements for mobile
networks specified by 3GPP, such as ANDSF
• Strong need for system-level WiFi requirements also
for home gateways and home networks
– Unique use cases
– Badly specified home gateways lead to many help-desk
calls and operational costs
• HGI has been the primary body for specifying systemlevel WiFi requirements for home gateways and home
networks
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HGI WI-FI REQUIREMENTS CAN BE FOUND IN:
• RD-001 Home Gateway Technical Requirements: Residential
Profile
– Soon updated by RD-044
• RD-012 QoS and Multicast Requirements for Home
Network Infrastructure Devices
• RD-027 Home Gateway QoS Module Requirements
• RD-039 Requirements for Wireless Home Area Networks
(WHANs) Supporting Smart Home Services
– Further explained in Duncan Bees’ talk today
• RD-045 Wi-Fi Requirements for Home Gateways Automatic Channel Selection and Repeaters
– Soon updated by RD-045v2 also including requirements for
channel measurements
• RD-057 Wi-Fi System Requirements for Home Gateways –
NFC Pairing, Guest Access, Hotspot
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WI-FI REQUIREMENTS IN RD-044
• RD-044 specifies basic home gateway requirements
• Includes 30 Wi-Fi related requirements, covering, for
instance:
– Dual band ( 2x2 2.4 GHz and 3x3 5 GHz)
– Support for 802.11a, b, -g, -n, and –ac
– Mandatory Automatic Channel Selection (ACS) as specified in
RD-045
– WPA2 Personal
– WMM Power Save
– Single WPS push button
– Configurable as client/repeater, if necessary with same SSID as
other APs/repeaters in the house
• Mandatory IEEE 1905.1 for automatic repeater configuration
– At least 3 SSIDs, which should be extensively configurable
– For Mid-Range and High-End Home Gateways: Packet
forwarding performance requirements for Wi-Fi <-> Wired LAN
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WI-FI REQUIREMENTS IN RD-012 AND RD-027
• Mapping priority markings
• Home Gateways as well as HNIDs must be able to
classify packets based on LAN type (including Wi-Fi)
• Home Gateways must also be able to classify based on
SSID
• HNIDs must support IP Multicast to L2 Unicast
conversion over the Wi-Fi link
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WI-FI REQUIREMENTS IN RD-045V2
• Applicable to Home Gateways as well as standalone APs
• Currently ACS is vendor-specific, and performance varies among
implementations
• Automatic Channel Selection requirements
– 2.4 GHz and 5 GHz
– Algorithms and configurability requirements for both static and
dynamic ACS
– Support for Channel Switch Announcement (CSA)
• Channel measurement techniques as in IEEE 802.11
– Clear Channel Assessment (CCA)
– Average Noise Power Indicator (ANPI)
– Detailed reporting and remote management requirements
• Repeater interoperability requirements
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WPS push button for association with primary AP
Copy all SSID and security settings from AP
Performance requirements
Support of all sub-bands in 5 GHz
Passphrase PSK in case the SSID of the repeater is (chosen to be)
different from AP
WI-FI REQUIREMENTS IN RD-057
• NFC in HG for enabling easy Wi-Fi pairing
– The HG must embed an NFC tag to support WPS pairing with NFC
Reader devices as specified by WFA
– Additional requirements with respect to SSID management, default
settings, and configurability
– Support of Mediated Connection
• Guest Access
– 2 use cases: guest at home gets own SSID, or guest at establishment
gets access to Wi-FI
– Requirements on proper separation of guest and home network
• Hotspot
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Service managed by the Service Provider
Optional support for high-security mode using IEEE 802.11i
Detailed description of attachment procedure for both security modes
Configurability
Best effort classification of packets
proper separation of hotspot and home network
DHCP L2 relay
GRE encapsulation
• Here follow a few slides about future Wi-Fi
requirements
• TNO vision, and use of TNO template
• Covers Wi-Fi monitoring, inter-AP
cooperation, (dual) WAN using Wi-Fi, and SDN
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