H	HDR,SK{CP
HA	Home Agent
HAL	Hypertext Application Language
HAPS	High Altitude Platform Station
HAPS	High Altitude Pseudo Satellites
HCL	higher communication layers
HCS	Header Check Sequence
HCS	Hierarchical Cell Structure
HD	High Definition
HDOP	Horizontal Dilution Of Precision
HDP	Horizontal derivation parameter
HDR	High Dynamic Range
HE	Header Extension
HEC	Header Extension Code
HEO	High Elliptical Orbit
HEO	Highly-Eccentric Orbiting
HES	Hosted Enterprise Services
HF	Human Factors
HF	high frequency
HFNI	Hyper Frame Number Indicator
HFR	High Frame Rate
HI	HARQ indicator
HIPAA	Health Information Patient Accountability Act
HLC	High Layer Compatibility
HLC	High Level Compatibility
HLG	Hybrid Log Gamma
HLR	Home Location Register
HLS	HTTP Live Streaming
HM	Harmonic Mixing
HMA	Highly Managed Alarm
HMD	Head-Mounted Display
HMI	Hazardous Misleading Information
HMS	HNB Management System
HNB	Home Node B
HNBAP	Home Node BApplication Part
HNP	Home Network Prefix
HNS	Home NodeB Subsystem
HOA	Higher-Order Ambisonics
HP	Hosting Provider
HPS	Home Packet Switched
HR	Half-rate
HR	Home Routed
HRD	Hypothetical Reference Decoder
HRPD	High Rate Packet Data
HSCSD	High Speed Circuit Switched Data
HSDPA	High Speed Downlink Packet Access
HSE	Home Security Endpoint
HSE	Home Security Environment
HSN	hopping sequence number
HSPA	High Speed Packet Access
HSR	High Symbol Rate
HSS	Home Subscriber Server
HSUPA	High Speed Uplink Packet Access
HT	Hilly Terrain
HT	high traffic
HU	Home Units
HUA	Home User Agent
HV	Hybrid Validation