Post on 02-Jun-2018
8/10/2019 3gpp Timers
1/2
Timer Start Stop At expiry
T300 Transmission of RRCCONNECTIONREQUEST in case ofconnection establishmentfor reasons other thanMBMS reception
Reception of RRCCONNECTION SETUP
Retransmit RRC CONNECTIONREQUEST if 300 !" N300#else $o to I%le mo%e
T30& Transmission of CE''UP()TE*UR) UP()TE
Reception of CE'' UP()TECON+IRM*UR) UP()TECON+IRM
Retransmit CE'' UP()TE*UR)UP()TE if 30& !" N30 else#$o to I%le mo%e
T30, Transmission of UEC)P)BI'IT-IN+ORM)TION
Reception of UE C)P)BI'IT-IN+ORM)TION CON+IRM
Retransmit UE C)P)BI'IT-IN+ORM)TION if 30, !"N30,# else initiate a cell .p%ateproce%.re
T30/ Enterin$ CE''+)C1 orUR)PC1 or CE''PC1state2 Reception of CE''U(P)TE CON+IRM*UR)UP()TE CON+IRM2
Enterin$ another state2 Transmit CE'' UP()TE if T30is not acti4ate% an% the UE%etects 5in ser4ice area52Other6ise# if T30 is not acti4e#start T302
T30 7hen the timer T30/ hase8pire% an% the UE%etects 5o.t of ser4icearea52
7hen the UE %etects 5in ser4icearea52
Transit to i%le mo%e
T309 Transmission of RRCCONNECTIONRE'E)SE COMP'ETE
Not stoppe% Transmit RRC CONNECTIONRE'E)SE COMP'ETE if 309"!N309# else $o to i%le mo%e2
T30: Upon reception of CE''C1)N;E OR(ER +ROMUTR)N messa$e
S.ccessf.l response to aconnection establishmentre
8/10/2019 3gpp Timers
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Timer Start Stop At expiry
T3= 7hen the UE %etects5o.t of ser4ice area5 inUR)PC1 or CE''PC1state
7hen the UE %etects 5in ser4icearea52
Initiate cell .p%ate proce%.re ifin ser4ice area is %etecte%2Other6ise start timer T3=#transit to CE''+)C1 state an%initiate cell .p%ate proce%.re6hen the UE %etects 5in ser4ice
area52T3= 7hen the T3= e8pires
or 6hen in CE''+)C1state# the UE %etects 5o.tof ser4ice area52
7hen the UE %etects 5in ser4icearea52
T3= ne4er e8pires2
T3=9 Transmission of RRCCONNECTIONREQUEST in case ofconnection establishmentfor MBMS reception
Reception of RRCCONNECTION SETUP
Enter i%le mo%e
=32& Co.nters for UE
Counter Reset Incremented When reaching max value300 7hen initiatin$ the
proce%.re RRCconnection establishment
Upon e8pir> of T3002 7hen 300 N300# the UEenters i%le mo%e2
30& 7hen initiatin$ theproce%.re Cell .p%ate orUR) .p%ate
Upon e8pir> of T30& 7hen 30& N30& the UEenters i%le mo%e2
30, 7hen sen%in$ the firstUE C)P)BI'IT-IN+ORM)TIONmessa$e2
Upon e8pir> of T30, 7hen 30, N30, the UEinitiates the Cell .p%ateproce%.re
309 7hen sen%in$ the firstRRC CONNECTIONRE'E)SE COMP'ETEmessa$e in a RRC
connection releaseproce%.re2
Upon e8pir> of T309 7hen 309 N309 the UEstops reDtransmittin$ the RRCCONNECTION RE'E)SECOMP'ETE messa$e2
3=0 7hen sen%in$ the firstPUSC1 C)P)CIT-REQUEST messa$e in aPUSC1 capacit> re of T3=0 7hen 3=0 N3=0 the UEstops reDtransmittin$ the PUSC1C)P)CIT- REQUESTmessa$e2
=323 UE constants an% parameters
Constant Usage
N300 Ma8im.m n.mber of retransmissions of the RRC CONNECTION REQUEST messa$e
N30& Ma8im.m n.mber of retransmissions of the CE'' UP()TE * UR) UP()TE messa$e
N30, Ma8im.m n.mber of retransmissions of the UE C)P)BI'IT- IN+ORM)TION messa$e
N309 Ma8im.m n.mber of retransmissions of the RRC CONNECTION RE'E)SE COMP'ETEmessa$e
N3=0 Ma8im.m n.mber of retransmission of the PUSC1 C)P)CIT- REQUEST messa$e
N3=& Ma8im.m n.mber of 5in s>nc5 recei4e% from '=2
N3=3 Ma8im.m n.mber of s.ccessi4e 5o.t of s>nc5 recei4e% from '=2
N3=/ Ma8im.m n.mber of s.ccessi4e 5in s>nc5 recei4e% from '= %.rin$ T3=3 is acti4ate%2