top button
Flag Notify
Site Registration

How to get a paging frame when the user has moved out from No network Coverage ?

+10 votes

If a UE is in RRC Idle state plus ECM registered and the UE has moved to a place where no reception is possible and after some time he has come out from that... What procedures will happen in UE?

posted Feb 6, 2014 by Hiteshwar Thakur

Share this question
Facebook Share Button Twitter Share Button LinkedIn Share Button

1 Answer

+2 votes

Paging frames are the specific radio frames during which a UE checks for the paging message. within this paging frames- Paging Occasion (PO) are define which represents the specific subframe during which a UE check for a paging message.

Paging frame(PF): can occur when the following equation is satisfied:
SFN modT=(T/N) *(UE_IDmodN), UE_ID=IMSI mod1024, T=DRX cycle length in radio frame,N=Info broadcast in SIB2

In both Idle and Connected mode UE tries to search for P-RNTI within PDCCH of the Subframe belonging to the Paging Occasion.Then its proceeds to decode the Resource allocation info from within the PDCCH. This info direct the UE to the PDSCH RB within which the paging message is sent. If the UE find its identity within Paging record then it triggers the RA procedure to establish the RRC connection.

answer May 21, 2015 by Yeshwanth
Similar Questions
+1 vote

Is there anything in the specs that mentions that “ue-not-available-for-ps-service” can also be used for CSFB to WCDMA as well? So far what I have seen from 23.272 section 6.3 is specific to GERAN as target RAT.

+1 vote

As we know that on basis of CAMEL contract, International roaming is possible, Visited-PLMN will generate the CDR at end and then forward it to home-PLMN. On basis of Call Data Records (CDR) home-PLMN will bill the user later in their currency.

The charging between the Operator's will happen as per the agreement.

So my Query is What if the user has crossed his credit limit during international roaming and ongoing call. How Visited PLMN will get to know about this information In between the ongoing call?