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DIFF Subgroup
H04B 17/309

Measuring or estimating channel quality parameters

Introduced: January 2015

Full Title

Full titles differ between systems:

IPC:

Monitoring; Testing > of propagation channels > Measuring or estimating channel quality parameters

CPC:

Monitoring; Testing (of line transmission systems H04B3/46; arrangements for monitoring or testing transmission systems employing electromagnetic waves other than radio waves H04B10/07) > of propagation channels > Measuring or estimating channel quality parameters

Of 7 combined children, 5 exist in both systems.

2 codes are CPC-only extensions.

1 shared codes have differing titles between IPC and CPC.

IPC defines codes here since 2015.

Child Classifications

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  • H04B 17/336 Signal-to-interference ratio [SIR] or carrier-to-interference ratio [CIR] since 2015 IPC+CPC Available in IPC and CPC
  • H04B 17/345 Interference values ( H04B17/336) since 2015 IPC+CPC Available in IPC and CPC
  • H04B 17/346 CPC only CPC only
  • H04B 17/347 CPC only CPC only
  • H04B 17/354 Adjacent channel leakage power since 2015 IPC+CPC Available in IPC and CPC
  • H04B 17/364 Delay profiles since 2015 IPC+CPC Available in IPC and CPC