16. Is UE listening
Paging Information in Idle state Yes/No, if yes then which scenario, explain?
Ans Yes in idle state UE keeps
listening paging messages while it present in on-duration-timer. UE in idle
state have drx is running in in-activity timer running ue not listen any
messages but when inactivity timer is expire and ue move to on-duration timer
it will read paging message.
IMP:- Paging happen in both state idle
as well as connected.
17. What information paging message
carry and how ue identify it’s paging information?
Ans Paging carry 4 types of
information’s (I) any change in system information, (II) any incoming call(MT
CALL), (III) ETWS primary and secondary information, (IV) CMAS Notification.
Paging message transmit on PDCCH
channel with paging-rnti (p-rnti=65534).
18. How many types of RRC Messages? And
what are timers of these messages?
Ans 1 RRC Connection
Request, 2 RRC Connection setup, 3 RRC Connection setup complete, 4 RRC
Connection re-configuration, 5 RRC Connection reestablishment, 6 RRC Connection
release, 7 RRC Connection reject.
|
T300
|
Transmission ofRRCConnectionRequest
|
|
T301
|
Transmission
ofRRCConnectionReestabilshmentRequest
|
|
T302
|
Reception
of RRCConnectionReject
|
|
T303
|
mobile originating
calls
|
|
T304
|
Reception
ofRRCConnectionReconfigurationmessage
|
|
T305
|
mobile originating
signalling
|
|
T310
|
Upon detecting physical
layer problems
|
|
T311
|
initiating the RRC
connection re-establishment procedure
|
|
T320
|
Upon
receiving t320 or upon cell (re)selection to E-UTRA from another
RAT
|
|
T321
|
Upon
receiving measConfig
|
19. Which system frame
number UE found SIB?
Ans SIB information UE found in
SFNmod==8 in 8th system frame no. ue found SIB1 and 16th system
frame no. ue found SIB2. But exact information of SIB2 to SIB12 are present in
SIB 1 scheduling info list.
20. How many SIBs are using in LTE?
Explain
Ans In Release-9 total 12 SIBs are using in LTE.
