stds-802-16: RE: A question about scheduling services
Thank you for bringing this errata to our attention. Quite a while ago, it
was discussed that UGS is basically equivalent to CBR. It was determined
that, like CBR, the data rates and whether the service was ATM or packet
based gave a better and more flexible approach. Unfortunately it appears we
missed one of the corresponding edits. So the statement in 6.2.5.1 should
read:
"The UGS shall be specified using the following parameters: the
Minimum Reserved Traffic Rate, the Tolerated
Grant Jitter, and the Request/Transmission Policy."
Since this affects both the 10-66 GHz systems and the 2-11 GHz systems, we
can add this to the amendment being started by the 2-11 GHz group which has
the fixing of errata as one of its charters.
Thank You,
Ken Stanwood
-----Original Message-----
From: Germán Madinabeitia Luque [mailto:german@trajano.us.es]
Sent: Friday, November 22, 2002 11:24 AM
To: ken@ensemble.com
Cc: stds-802-16@ieee.org
Subject: A question about scheduling services
Dear sir:
I have a question about definitions of the scheduling services in
802.16.
In the Unsolicited Grant Service definition (6.2.5.1), we can read that:
The UGS shall be specified using the following parameters: the
Unsolicited Grant Size, the Nominal Grant interval, the Tolerated
Grant Jitter, and the Request/Transmission Policy.
However, I cannot find the definition of the first two parameters in the
suitable section (11.4.8).
They were dropped in comment number 129 of the "P802.16/D4 Sponsor
Ballot Recirculation Comment Resolution and Editor's Report". The reason
for this absence is given: "connections should have proper traffic
parameters".
Well, but, how does the BS know the proper parameter's values?
Thanks in advance for your answer.