Sylvain,
I just red that if early assignment is used (non-oascu) in a ms terminating call, there is no channel request on RACH by ms. I still dont quite get then howto match imsi/tmsi to an immediate assignment.
stefan
----- Ursprüngliche Nachricht ----- Von: Sylvain Munaut 246tnt@gmail.com Gesendet: Donnerstag, 12. Januar 2012 18:30 An: Stefan Bauer stefan.bauer@cubewerk.de Cc: baseband-devel@lists.osmocom.org Betreff: Re: 3GPP - paging references
Hi,
In detail how can i match the paging for my specific imsi/tmsi to the data-channel assignment?
You can't ... There is no relation between paging and the channel assignment.
When the phone sees he's being paged, he will initiate the channel request procedure.
He sends a RACH at a given time fn with a random reference (8bits). And then he looks for assignement matching his RACH (i.e. the time fn and random reference are repeated back by the network in the assignment so that a phone knows the channel was for it).
Cheers,
Sylvain
Hi,
I just red that if early assignment is used (non-oascu) in a ms terminating call, there is no channel request on RACH by ms.
??? !!! ???
Where would you have read that in the spec ?
I still dont quite get then howto match imsi/tmsi to an immediate assignment.
You can't ... I just said so in the previous mails ...
There is no indication in the imm.ass that would allow you to know for which mobile identity a channel is intended. You can only know if it matches _your_ request (by matching time and random reference)
Cheers,
Sylvain
baseband-devel@lists.osmocom.org
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Stefan Bauer -
Sylvain Munaut