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These are our comments on the proposed
changes to the Medium Occupancy Coexistence Metric as detailed in the attached
contribution: -
Medium Occupancy is an important metric for determining fair
sharing of the channel and of high importance in the 3.65-3.7GHz band. -
The idea behind the introduction of the Medium Occupancy Metric was
to abstract the underlying radio access technology. This proposal is a step
backwards and moves away from this intention. -
Because Medium Occupancy abstracts radio access technology
discussion of TDMA and OFDMA is not valid. -
Medium Occupancy is not intended to measure efficiency – but
coexistence fairness. -
For 802.16h the system either has the frame or not. When a system has
the medium, be it 802.16 or 8021.11, the frame occupancy is 1 - not some
fraction based on the number of devices transmitting within a system. The
metric is Medium Occupancy – medium meaning the whole channel. -
There is
no concept of 802.11y using the subchannels not used by 802.16h, so even if the
802.16 system is using the minimum, the UL is still occupied from the point of
view of an 802.11 system near enough to the 802.16 subscriber to hear it. The
introduction of the modifications will report an erroneously low and incomplete
measure of occupancy. From these points the suggested changes
are not acceptable. Kind regards, Paul. From: Shellhammer,
Steve [mailto:sshellha@qualcomm.com] Here is a document from Marianna. Steve From: Mariana
Goldhamer [mailto:marianna.goldhammer@alvarion.com] Hi Steve, Please consider the attached contribution
as response to my A.I. Regards, Mariana From: Shellhammer,
Steve [mailto:sshellha@qualcomm.com] The Minutes and the updated comment resolution database have
been uploaded. https://mentor.ieee.org/802.19/file/08/19-08-0002-09-0000-conference-call-minutes.doc Steve ************************************************************************************ This footnote confirms that this email message has been scanned by PineApp Mail-SeCure for the presence of malicious code, vandals & computer viruses(190). ************************************************************************************ ************************************************************************************ This footnote confirms that this email message has been scanned by PineApp Mail-SeCure for the presence of malicious code, vandals & computer viruses(42). ************************************************************************************ ************************************************************************************ This footnote confirms that this email message has been scanned by PineApp Mail-SeCure for the presence of malicious code, vandals & computer viruses(43). ************************************************************************************ |
19-08-0016-00-0000-medium-occupancy-metrics.doc