Monitor the Incoming Paging in GSM

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Paging Groups
−The MS will monitor the incoming paging in only specific times, and the rest of the time it will remain in sleeping mode.
−In this way we save the MS battery and we decrease the UL interference on the system.
−The MS will monitor the incoming paging when the “Paging Group” assigned for this MS is transmitted only.
−The CCCH block can be used by either PCH or AGCH.
−When the CCCH block is used for paging it will be called “Paging Block”
−The Paging Block consists of 4 consecutive Time slots lie in 4 consecutive frames.
−The Paging Block can be used to page 4/3/2 users according to IMSI or TMSI is used when paging the MS ( Length IMSI = 2 TS, Length TMSI = 1 TS)

−The group of users belong to the same paging block will be called “Paging Group” 

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