8/10/2019 3gpp Timers

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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