Monitor the Incoming Paging in GSM

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”