DIFF Subgroup
H04W 74/08 Non-scheduled access, e.g. ALOHA (hybrid access H04W74/02)
Introduced: January 2009
Title
Titles differ between systems:
IPC: Non-scheduled access, e.g. ALOHA
CPC: Non-scheduled access, e.g. ALOHA (hybrid access H04W74/02)
Full Title
Full titles differ between systems:
IPC:
Wireless channel access > Non-scheduled access, e.g. ALOHA
CPC:
Wireless channel access > Non-scheduled access, e.g. ALOHA (hybrid access H04W74/02)
Of 3 combined children, 2 exist in both systems.
1 codes are CPC-only extensions.
IPC defines codes here since 2024.
Child Classifications
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- H04W 74/0808 using carrier sensing, e.g. carrier sense multiple access [CSMA] since 2024 +1 CPC IPC+CPC Available in IPC and CPC
- H04W 74/0833 Random access procedures, e.g. with 4-step access since 2024 +1 CPC IPC+CPC Available in IPC and CPC