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Re: [STDS-802-16] a question on UGS

Weidong,

You need to think also about the consequences of going in your approach, and possible effect on the scheduler it can cause.

Taking your approach, the scheduler will have to map allocations "around" multiple fixed allocations, which will not necessary be segmented together, this can both increase the complexity of the scheduler and also add more overhead both to the MAP (more entries when fragmenting) and allocating more BW per request, again due to additional fragmentation header.

Regards,

Itzik.

From: owner-stds-802-16@LISTSERV.IEEE.ORG [mailto:owner-stds-802-16@LISTSERV.IEEE.ORG] On Behalf Of weidong yang
Sent: Tuesday, March 08, 2005 12:35 AM
To: STDS-802-16@LISTSERV.IEEE.ORG
Subject: Re: [STDS-802-16] a question on UGS

Baraa,
 
In this case,  the overhead  due to DL_MAP & UL_MAP IEs could be very substantial if lots of conversations are going on.
(I did a search, and found this issue was raised in  IEEE C802.16e-04/368r2 by KT & Korea University)
I don't know whether other people also think this is a serious problem.
-----Original Message-----
From: Al Dabagh, Baraa [mailto:baraa.al.dabagh@INTEL.COM]
Sent: Monday, March 07, 2005 4:05 PM
To: STDS-802-16@LISTSERV.IEEE.ORG
Subject: Re: [STDS-802-16] a question on UGS

Correct.

 

From: owner-stds-802-16@LISTSERV.IEEE.ORG [mailto:owner-stds-802-16@LISTSERV.IEEE.ORG] On Behalf Of weidong yang
Sent: Monday, March 07, 2005 1:54 PM
To: STDS-802-16@LISTSERV.IEEE.ORG
Subject: [STDS-802-16] a question on UGS

 

Dear all,

I have a question on UGS.

After reading the 802.16-2004 document, I come to the understanding

suppose we want to set up a voice conversation over 802.16-2004,  in every frame (let us assume

the frame duration is 10 ms)  where a downlink burst or an uplink burst for

that conversation is assigned, the assignment(s) has/have to be signified through DL_MAP and UL_MAP,

there isn't a way to make a "permanent" assignment for that conversation, so the assignments don't have to

be specifed each time in DL_MAP or UL_MAP. Is my understanding correct?

 

Weidong