The device periodically wakes up and check if there is page for me or not.
The below diagram shows when the device wakes up to check its page. (Only at a particular PI location, otherwise in sleeping.)
related posts: here here
here here
The paging occasion
is
the SFN of the frame of which the UE must monitor the PICH to see whether a paging message is being sent to the UE.
For FDD,
paging occasion (SFN) = (IMSI div K) mod (DRX cycle length) + n* DRX cycle length
where n=0, 1, 2, up to a maximu such that SFN is valid [...]
The combination of different frequency, code and time specify a set of physical channels.
Two main categories: (1) dedicated and (2) control
1. Dedicated physical channels
a. DPDCH (Dedicated Physical Data Channel):
carries DCH transport channel.
As with DCH, this exists both in the uplink and downlink.
closed loop power control (1500 Hz/sec)
b. DPCCH (Dedicated Physical Control Channel):
relates to DPDCH and [...]
