Re: [STDS-802-16] Frame control header

[vimalraj s <vimalraj.s@GMAIL.COM>]

Hi Eyal Verbin,

Thanks for ur reply....

I mistook the DIUC value....I am clear with the second question I
asked but I am not clear with the first one i.e.

If number of DL burst is greater
than 5, FCH will contain burst profile encoding of first 5 burst so that Phy's receving the 
DL bursts, in advance come to know modulation & coding scheme of the first 5 bursts,the
remaining DL bursts encoding are given in DL-MAP frame but, DL-MAP frame is a MAC entity &
the receving Phy's won't manipulate the DL-MAP frame & just provide it to the MAC layer,then how
come the Phy will come to know the modulation/coding schemes for DL bursts greater than 5 ???

Thanks & Reg

Vimal

On 9/29/06, Eyal Verbin <everbin@airspan.com> wrote:

1. MAC and PHY communicate between them through the SAP. DLFP and DL MAP are processed by the MAP and the result is fed to the PHY. DLFP contain up to 5 bursts and the DL MAP contains the rest.
2. I don't understand your question. DIUC = 0 is for indicating a switch in the DL frame to STC zone

 

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From: vimalraj s [mailto:vimalraj.s@gmail.com]
Sent: Friday, September 29, 2006 1:08 PM
To: David Castelow; Eyal Verbin
Subject: Re: [STDS-802-16] Frame control header

 

Hi,

Thanks for your replies...

I have understood that FCH gets DL burst profile information from MAC SAP, but still I have some
doubts

1. FCH is an information to the SS Phy, so that the Phy will come to know the burst profile details
   in advance before it receives the bursts, but the DLFP will have only the details of first 4
   burst profiles,if DL-sub frame have more than 4 burst profile, then how come the SS phy will
   in advance know the Modulation & coding scheme of the the 5th burst profile????(DL-MAP frame
   will contain the burst profile encoding if there are more than 5 DL bursts; but this is MAC info)
  
2. In STD 2004, Table 225, it's given that if(DIUC !=0) only the Length field is present,whether
   it means,if the broadcast msg in burst1 or data frames in any of the DL burst transmitted with
   DIUC value equal to 0, length field wont be present in DLPF??  

  
   Thanks & reg
   Vimal