Thread Links Date Links
Thread Prev Thread Next Thread Index Date Prev Date Next Date Index

stds-802-16-mobile: Sleep window parameters in Table 275a

 
 
Dear All...
I have already uploaded the comment inclduing this issue...
Two points are there...
At least 80ms should be allocated to Max value...from point of measurement of 1x(CDMA) MODEM, the value(around 80ms) is minimum value for the power saving considering RF ON/OFF and worming-up time etc...
And we have 10 bits for the Max value...
 
So, I have proposed the 1024 frames for the Max value...
Thanks
Changhoi Koo
----- Original Message -----
Sent: Sunday, November 02, 2003 10:45 PM
Subject: RE: stds-802-16-mobile: Sleep window parameters in Table 275a

Phillip and all,
I agree that the 5 frames duration may me too small of a period, but at the same time 4096 is much too much. To my understanding, the sleeping interval should  be around 10 times of the listening time. This gives us some 90% power savings in time. to get better percentage the sleep interval grows too much. For example take a ratio of 20 frames sleep and 2 frames listening time. It is around 89% power saving (taking into consideration that the "wake-up" process consumes more power then continues operation). While 30 frames of sleep with 2 listening frames goes to 96%. This shows that the additional 7% of saving costs 30% in sleeping time.
 
I would recommend 30 to be the maximum value.
 
Ofer
 
 
 
-----Original Message-----
From: Phillip Barber [mailto:pbarber@broadbandmobiletech.com]
Sent: 28 October, 2003 6:16 PM
To: stds-802-16-mobile@ieee.org
Subject: stds-802-16-mobile: Sleep window parameters in Table 275a

Itzik and all,
 
I have been working on a revision to Table 275a.  A few observations:
 
SS/Max_Sleep_Interval/Max. Value seems very low.  Shouldn't this be something more like 4,096 frames or more?
 
For SS/Listening_Interval/Min. Value, didn't we settle on 4 frames at Session 27?
 
Thanks all.
 
 

Table 275a-Parameters and Constants

System

Name

Time Reference

Min. Value

Default Value

Max. Value

SS

Min_Sleep_Interval

Minimum sleeping time allowed to SS

2 Frames

 

 

SS

Max_Sleep_Interval

Maximum sleeping time allowed to SS

 

 

5 Frames

SS

Listening_Interval

The time duration during which the SS, after waking up and synchronizing with the DL transmissions, can demodulate downlink transmissions and decides whether to stay awake or go back to sleep

 

 

 

BS

BEA-ADV interval

Nominal time between transmission of BEA-ADV messages

 

 

30s

BS

ASC-AGING-TIMER

Nominal time for aging of MSS associations

100ms

 

 

BS

Neighbor_Info interval

Nominal time between transmission of Neighbor_Info messages

 

 

600s

BS

Neighbor-Aging-Timer

Nominal time for aging of BS neighbor association and removal from the dynamic Neighbor BS table

3600s

 

 

 

 

 
 
Thanks,
Phillip Barber