Re: [OT] Finding people with GSM phones (was Re: GPS heads up )

[Chuck Robey]

On Mon, 8 May 2000, Warner Losh wrote:

> In message <[EMAIL PROTECTED]> Chuck Robey 
>writes:
> : I'm not trying to tell you you're wrong, but I'm having trouble connecting
> : the dots.  Is my lady informant all wet?  Or, am I misunderstanding you?
> 
> The syncing isn't for the initial sync like you are talking about.  It 
> is to reject messages that get to the phone by multi-path.  The phone
> knows what's valid and what isn't and to do that has to know what time 
> it is.  It isn't to start the sync either, because of the same
> multipath and atmospherics introducing variations in the propigation
> times.  There are also some other uses for timing that I know I've
> forgotten over time.

Gotcha.  Thanks!

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Chuck Robey            | Interests include C & Java programming, FreeBSD,
[EMAIL PROTECTED]  | electronics, communications, and signal processing.

New Year's Resolution:  I will not sphroxify gullible people into looking up
fictitious words in the dictionary.
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