1. Proposed Resolution for Draft 3.0
July 2001
doc.: IEEE /434r1
July 2002
Proposed Resolution for Draft 3.0
Lim Wei Lih
(Matsushita Electric Ind.)
Isaac Lim, Matsushita Electric Ind.
Wei Lih Lim, Matsushita Electric Ind.

2. Content TSPEC Element Set Polling Start Time July 2002
Isaac Lim, Matsushita Electric Ind.

3. TSPEC Element Set Issues on TSPEC Parameters
July 2002
TSPEC Element Set
Issues on TSPEC Parameters
Some vague definition, may cause different interpretation
Clarification is required for the following parameters
Maximum Burst Size
Minimum Data Rate
Mean Data Rate
Isaac Lim, Matsushita Electric Ind.

4. Maximum Burst Size Current Description Text
July 2002
Maximum Burst Size
Current Description Text
“Maximum Burst Size field is 2 octets in length, and a non-zero value specifies the maximum data burst, in units of eight octets, of MSDUs belonging to this TS that may occur for transport within the delay and jitter bounds under this traffic specification. The field A value of 0 indicates unspecified maximum burst size. Maximum Burst Size”
What is the duration that is being based to determine Maximum Burst Size?
Proposal: Another parameter to specify the duration used to compute maximum burst size is required.
Burst Size Computation Duration
“Burst Size Computation Duration is 1 octet in length, and a non-zero value specifies the amount of time in TU that Maximum Burst Size is based on. A value of 0 indicates unspecified Burst Size Computation Duration. This field should not hold a value of 0 if Maximum Burst Size is a non-zero.”
Isaac Lim, Matsushita Electric Ind.

5. Minimum Data Rate Current description text
July 2002
Minimum Data Rate
Current description text
“The Minimum Data Rate field is 2 octets in length, and a non-zero value specifies the lowest data rate, in units of1 kbit/s (1k = 1000), that is acceptable for transport of MSDUs belonging to this TS within the delay and jitter bounds under this traffic specification. A value of 0 indicates unspecified minimum data rate.”
Proposal: Add to following text to the end of the existing description text for Minimum Data Rate:
This field is to be used to compute the bandwidth that the traffic stream is required for transmission to meet minimum QoS expectation.
Isaac Lim, Matsushita Electric Ind.

6. Mean Data Rate Current description text
July 2002
Mean Data Rate
Current description text
“The Mean Data Rate field is 2 octets in length, and a non-zero value specifies the nominal sustained data rate, in units of 1 kbit/s (1k = 1000), for transport of MSDUs belonging to this TS within the delay and jitter bounds under this traffic specification. A value of 0 indicates unspecified mean data rate.”
Proposal: Change the name of this parameter to “Substantial Data Rate” with the following definition:
“The Substantial Data Rate field is 2 octets in length, and a non-zero value specifies the substantial data rate, in units of 1 kbit/s (1k = 1000), for transport of MSDUs belonging to this TS within the delay and jitter bounds under this traffic specification. A value of 0 indicates unspecified mean data rate. This field is to be used to compute the recommended bandwidth to be dedicated in the case that substantial unused bandwidth remain.”
Isaac Lim, Matsushita Electric Ind.

7. Polling Start Time When can HC start to poll the transmitter?
July 2002
Polling Start Time
When can HC start to poll the transmitter?
Right after poll?
BurstAck session setup maybe considered as inactivity
Isaac Lim, Matsushita Electric Ind.

8. Determination of Polling Start Time
July 2002
Determination of Polling Start Time
Bit 10 in TS Info field, “Delay”, is used to indicate the mode of Polling Start Time
If Delay = 1, then by accepting this TSPEC, HC should not start polling the transmitter until a ActivateTS QoS Action Mgt frame is being received.
If Delay = 0, then polling start time is to be determined by HC.
bits: 0-1
2-3 4
5-7
8-9 11
12-15
Traffic Type
TSInfo Ack Policy
FEC
User Priority
Direction
reserved
TSID 10
Delay
Figure 42.8 – TS Info field
Isaac Lim, Matsushita Electric Ind.

9. July 2002 Isaac Lim, Matsushita Electric Ind. SME HC MAC HC MAC QSTA
SME QSTA
MLME-DELTS.Confirm
MLME-DELTS.Indication
Ack
DELTS QoS Action Request Mgt frame
MLME-DELTS.Request
MLME-ActivateTS.Confirm
MLME-ActivateTS.Indication
ActivateTS QoS Action Request Mgt frame
MLME-ActivateTS.Request
MLME-ADDTS.Request
MLME-ADDTS.Confirm
ADDTS QoS Action Response Mgt frame
MLME-ADDTS.Response
MLME-ADDTS.Indication
ADDTS QoS Action Request Mgt frame
Isaac Lim, Matsushita Electric Ind.