Re: [STDS-802-16-MOBILE] Initial Ranging

[gundlapalli giridhar <girigold@YAHOO.COM>]

Hi,

The periodicity and length of IRI slot could be
scheduled by BS depending on the the available
bandwidth on a channel. If the available BW is:
- more, more frequently and lengthy IRI slots could be
scheduled
- less, less frequently and short IRI slots are
scheduled.

When the frame BW is utilized to the MAX extent, there
may be a need for IRI, meant only for the active SSs
to convey the change of DLBP and may deny network
entry by new SS's as there is no room for it.

Thanks
-Giridhar.

--- Kalash <kalash.kuhasa@GMAIL.COM> wrote:
> Hi Ramkumar,
> 
> I think that the initial ranging allocations would
> be made by the BS
> only once every few frames (DOCSIS CMTSes had it
> configurable through
> a MIB object). After all, the initial ranging
> allocation remains
> unused once all the SS' are operational.
> 
> It is also possible for a BS to dynamically adjust
> the interval of
> initial ranging allocations. In such a situation,
> the BS would monitor
> the ranging attempts and possible collisions in the
> initial ranging
> allocations to modify the periodicity of the
> allocations.
> 
> Thanks
> Kalash
> 
> On 4/19/05, Ramkumar MV <ramkumar4u@gmail.com>
> wrote:
> > Hi all,
> > 1) Is the initial ranging mandatory for every
> frame.
> >    Or is it possible to do ranging only for
> selected frames.
> > 2) Can we have different ranging channels for
> different segments.
> >    Or is it mandatory to have 6 or 8 subchannels
> in a cell, where in
> > each segment have to  share the same 6
> subchannels, in a frame.
> > 
> >   thank you very much
> >   with regards
> > 
> >   Ramkumar
> >   Midas communications
> >
> 

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