pinkfoot
Joined: 07 Apr 2008 Posts: 11
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Posted: Thu Dec 17, 2009 8:28 pm Post subject: Validity of Timing Advance in Idle Mode |
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Hi,
I would like to extract the timing advance for the current serving cell using provide_ta().
However, I have some concerns about the validity or 'freshness' of the TA value returned. Alas, I cannot find answers anywhere, includding the TS specs.
What I would like to know is whether the TA value returned by provide_ta( ) (i.e. by the phone via the STK) is the _actual_ TA at the time the call is made.
Or, is the TA value retuned, the last TA value negotiated by the phone in that cell?
If provide_ta() does return 'stale' TA values, is there a way to use the STK to 'ping' the seving cell to get an up-to-date TA ?
Thanks |
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