Binary XML format for Presence Information

On Thu Jun 28 12:21:27 2007, ajay.kasamwipro.com
wrote:
> Hi All,

Is Binary XML better than using a stateful general
compression codec 
over a long-running connection?

The latter is, to some degree, provided by using TLS-based 
compression and HTTP persistent connections, although
coverage is 
devices is low to non-existent. I'd be surprised if use of 
Binary-tokenized XML outperformed this.

Dave.
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what is wrong with sigcomp?

ajay.kasamwipro.com wrote:
> Hi All,
>  
>   *Problem The
Presence information for the presentity is too large if 
> represented in XML textual format. For the low
bandwidth networks, it 
> would be better if we reduce the network bandwidth
requirements for 
> presence information state change exchange.
>  
>  *Current solutions*: The current solution is uploading
presence 
> information to HTTP content server and its HTTP URI is
sent to the 
> watcher for the state information. In this case, user
got to use another 
> protocol to download the content. Though different
mechanism, the 
> network bandwidth requirement is same. This mechanism
doesn't solve the 
> actual problem of reducing the bandwidth requirement.
>  
>   *Proposed Solution*: Coming up with binary format for
representing the 
> presence information. Associating each of PIDF XML tag
with a binary 
> code and using this mechanism to convey the presence
information(state 
> change).
>  
> This is inspired from "DRM Rights in binary 
> format application/vnd.oma.drm.rights+wbxml 
> (http://www.openmobilealliance.org/release_program/docs/DRM
/V1_0-20040625-A/OMA-Download-DRMREL-V1_0-20040615-A.pdf
)".
>  
> Regards
> Ajay krishna Kasam
> +919986016520
> 
> 
>
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