Download - S1P1 Yachen Wang
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7/26/2019 S1P1 Yachen Wang
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ITU Workshop on Voice and Video over
LTEGeneva, Switzerland, 1 ece!"er #$1%
&hina 'o"ile VoTLE Stat(s and )(rther &onsideration
*achen Wan+
Senior 'ana+er o -etwork Technolo+. ept
&hina 'o"ile
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/+enda
Why VoLTE?
China Mobile VoLTE status
China Mobile VoLTE furtherconsideration
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7/26/2019 S1P1 Yachen Wang
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/lternative LTE Voice Sol(tions
T0LTE '(lti0!ode(alStand".
T0LTE '(lti0!odeSin+leStand".
LTE supportvoice& data
LTE supportdata only
VoLTES2V&&In LTE coverage, provideIM voice, support !VCCto provide voice continuity"
&S)3Ter#inal prefer LTE residence $allbac% to '() *henusing voice service"
T/2G
ET
S4L
UTI4-
LTE
CSFB phone
'(lti0!ode d(alstand".
Ter#inal resident in LTE and C voice service provided by Cand data service provided byLTE"
T2/-
SITI4-
S4LUTI4
-LTE
CS
Voice
T2/-
SITI4-
S4LUTI4
-ata
There are t*o %inds of LTE ter#inals+ LTE #ulti#ode dualstandby and LTE #ulti#ode singlestandby"
Voice service of LTE #ulti#ode dualstandby ter#inals is provided by C net*or%"
Voice service of LTE #ulti#ode single standby ter#inals is provided by LTE-VoLTE. or C-C$/.net*or%"
DS phone
CS
)all"ack
SGs
LTE
CS
S2V&&54
VoLTE phone
VoI6
Vo&S
ata
Sv
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VoLTE 4verview and 3asic
)eat(res
)E/TU2E1VoLTE call control 7
service tri++er "asedon I'S
)E/TU2E#E6& provide
G(aranteed 8oS orVoLTE
)E/TU2E93eore (ll covera+e,eS2V&& can providevoice call contin(it.
0# 0-0#:%
/ll I6Low cost
5 voice7 video
&apacit.i!prove
d
Servicee;pansion
1
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7/26/2019 S1P1 Yachen Wang
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/+enda
Why VoLTE?
China Mobile VoLTE status
China Mobile VoLTE furtherconsideration
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7/26/2019 S1P1 Yachen Wang
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&hina 'o"ile at a +lance VoLTE deploy#ent *ill #igrate 45 #illion CMCC voice service
users fro# C to IM"
T0LTEstations
1 'illion>
#G9GS("scri
"ers
?#$
!illion
#@?!illion
AGS("scri"ers
2oa!in+
6artners
655
7I'So
!ains
91
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VoLTE &o!!ercialLa(nch
China Mobile starts co##ercial launch fro#8uly 596" /y ept, 2ang:hou and /ei;ing beca#e the
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5i+h level (nctionalarchitect(re
VoLTE #a;or functionalities have been developed+ >et*or% attach, IM registration, 23 voice & video call Mobility #anage#ent, including e!VCC Iv@ supported
olicy Charging ControlA
34SS
-'S
4'&
34SS/pplicationLa.er
&ore-etwork
I'SE6&6&G9G'S&
3TS3S&/cce
ss)
Ter!inal
VoLTE BE
2/ 5SS
I6 "earer
VoLTE
e-ode3LTE
C Value added
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International
2oa!in+
5Voice
Intelli+ent
networkservice
I'SE!er+en
c. call
eS2V&&
S(pple!entar.service
5Video
Val(eaddedservice
VoLTE Service
S(pported
T3
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T0LTE VoLTE Ter!inals
= types of T3LTE co##ercial ter#inals areprovided for VoLTE by ep" 596"
round 5 types of T3LTE ter#inals areproposed for VoLTE launch by the end of 596"
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S(++estions in VoLTEeplo.!ent
ervices 'i+rationUser E;perience&har+in+ 6olic
Vario(s Services
E;istD upple#entary
ervicesD Valueadded ervices
D I> ervices
-o (niFedSol(tion or
Service 'i+ration
4perators needto care(ll.
develop Service
'i+ration
Sol(tion,
accordin+ to their
own service
1 Introd(ce
-ew )eat(resD e!VCC
D a!VCCD b!VCC
D Midcall !VCC
# E;tend LTE&overa+e
4perators need
to "alance"etween 1 and
#
'in(tes 3ased
&har+in+
vs:
Vol(!e 3ased&har+in+
'ore thin+s to think
a"o(t on V3&
D C3! correlation
D Content charging
D !oa#ing charging 4perators need
to pa. !ore
attention to
char+in+ polic.
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7/26/2019 S1P1 Yachen Wang
12/21
/+enda
Why VoLTE?
China Mobile VoLTE status
China Mobile VoLTE furtherconsideration International !oa#ing
VoLTE Interoperability VoLTE7F ro;ect
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International 2oa!in+ )MGs endorse#ent of t*o roa#ing architectures that canGt
inter*or%ing *ith each other is leading to #ar%et frag#entationbet*een operators"
The #ain contradiction is *hether access IM in Visited net*or% or in2o#e net*or%"
!VEL+ !oa#ing rchitecture for Voice over IM *ith Local/rea%out
42!+ 4 2o#e !outed
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International 2oa!in+
Trials
China Mobile drives VoLTE International !oa#ing Trial in)M, and release VoLTE International !oa#ing Trial)uidanceF"
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VoLTE Interopera"ilit. VoLTE Interoperability issue -B>I & >>I. delayed VoLTE
deploy#ent
igni
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&hina 'o"ileVoLTE>
6roHect> : Improvement of user experience
> new serviceseat(res!(lti0part. Video callJK
> new access t.pes
VoWi)iJ K
> new t.pe o ter!inalsWe"2T& ter!inalJK
VoLTE
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1 VoWi)i VoLTE WiF
ooadK&ore -etwork and Services
Internet andInternet Services
UserEM(ip!ent
Wi)i /ccess 6oint
#G9GLTE
Voice contin(it. "etween LTE and WiF 3etter indoor covera+e when hi+her LTE reM(enc.
"ands are (sed:
Widel. availa"le and s(pported ". UEshandsets,ta"lets, laptops:
Lower char+in+ strate+. especiall. when roa!in+:
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#
'(lti0part. video call
EC
E;pansion o VoLTE
services 5 !(ltipart. video
call co!pared with4TT
Witho(t installin+ /66
IM 7
23 Video Multiparty Video Call
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9
We"2T& 7 VoLTE capa"ilit.e;pos(re
VoLTE
WL>'()'LTE
Web!TC ter#inalVoLTE ter#inal
E;pansion oteleco! capa"ilit. >e* type of
ter#inals access toIM
>e* eperience forbro*ser users
>e* #ode for servicecapability eposure
>e* featuresintroduced fro# HTTservice
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S(!!ar.
Collaborations are i#portant on VoLTE internationalroa#ing through standardi:ation and tests for itsco##ercial use"
VoLTE B>I pro
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ThanksN