DIFF Main Group
H04W 4/00 Services specially adapted for wireless communication networks; Facilities therefor
Introduced: January 2009
IPC and CPC are identically structured here. All 13 subcodes exist in both systems.
1 shared codes have differing titles between IPC and CPC.
IPC defines codes here since 2009.
Child Classifications
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- H04W 4/02 Services making use of location information since 2009 +2 CPC IPC+CPC Available in IPC and CPC
- H04W 4/06 Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services since 2009 IPC+CPC Available in IPC and CPC
- H04W 4/16 Communication-related supplementary services, e.g. call-transfer or call-hold since 2009 IPC+CPC Available in IPC and CPC
- H04W 4/18 Information format or content conversion, e.g. adaptation by the network of the transmitted or received information for the purpose of wireless delivery to users or terminals since 2009 +1 CPC IPC+CPC Available in IPC and CPC
- H04W 4/20 Services signaling; Auxiliary data signalling, i.e. transmitting data via a non-traffic channel since 2009 +1 CPC IPC+CPC Available in IPC and CPC
- H04W 4/30 Services specially adapted for particular environments, situations or purposes since 2018 IPC+CPC Available in IPC and CPC
- H04W 4/60 Subscription-based services using application servers or record carriers, e.g. SIM application toolkits since 2018 IPC+CPC Available in IPC and CPC
- H04W 4/70 Services for machine-to-machine communication [M2M] or machine type communication [MTC] since 2018 IPC+CPC Available in IPC and CPC
- H04W 4/80 Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication since 2018 IPC+CPC Available in IPC and CPC
- H04W 4/90 Services for handling of emergency or hazardous situations, e.g. earthquake and tsunami warning systems [ETWS] since 2018 IPC+CPC Available in IPC and CPC