Video Conferencing Services Stage 1

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1 3GPP2 S.R0022 Vrsion 1.0 D: July 10, 2000 Vido Confrncing Srvics Sg 1 COPYRIGHT 3GPP2 nd is Orgnizionl Prnrs clim copyrigh in his documn nd individul Orgnizionl Prnrs my copyrigh nd issu documns or sndrds publicions in individul Orgnizionl Prnr's nm bsd on his documn. Rquss for rproducion of his documn should b dircd o h 3GPP2 Scrri [email protected]. Rquss o rproduc individul Orgnizionl Prnr's documns should b dircd o h Orgnizionl Prnr. S for mor informion.

2 Ediors Adm H. Li, Smsung/UCLA, , Dong-Sk Prk, Smsung, , John D. Villsnor, Smsung/UCLA, , Rvision Hisory Vrsion Iniil Drf Jnury 18, 2000 Vrsion Rvisd Vrsion (Inrnl Rviw) Fbrury 15, 2000 Vrsion Rvisd Vrsion (Inrnl Rviw) Mrch 21, 2000 Vrsion Advncd Vrsion (Exrnl Rviw) Mrch 22, 2000 Vrsion Rvisd Vrsion (Inrnl Rviw) My 9, 2000 Vrsion Pr V&V Vrsion My 10, 2000 Vrsion V&V Vrsion Jun 5, 2000 Vrsion 1.0 Approvd for Publicion July 10, 2000 Vido Confrncing Srvics for cdm2000 2

3 Wirlss Furs Dscripion: Vido Srvics Funcionl Chrcrisics nd Rquirmns For us wihin Tlcommunicions wirlss nworks 1 Conns 1 Conns Scop Rfrncs Normiv Rfrnc Informiv Rfrncs Abbrviions Gnrl Vido Confrncing Srvics Vido Confrncing Srvic Chrcrisics Vido Confrncing Srvics: Scop nd Chrr Rlionship bwn Vido Confrncing Srvics nd Ohr D Srvics QoS Rquirmns nd Sysm Implicions QoS Aribus Gurnd Bir (kbps) Mximum Trnsfr Dly (msc) Accpbl Trnsfr Dly (msc) Mximum Trnsfr Dly Jir (msc) Frm Error R Bi Error R Sysm Implicions QoS Propris of Vido Confrncing Applicions Furs of Vido Confrncing Srvics Sysm Synchronizion Throughpu Vido Codc Spch Codc Muliplxing Pckizion Vido Confrncing Srvics for cdm2000 3

4 8.8 Plyou Dly Dly Jir Error R Picur Siz Dynmic Adjusmn of Confrncing Prmrs Hrdwr Rsourc Consumpion Procdurs for Vido Confrncing Srvics Norml Procdurs Wih Succssful Oucom Auhorizion D-Auhorizion Rgisrion D-Rgisrion Acivion D-Acivion Invocion Norml Oprion wih Succssful Oucom Cll Dil Rcord Excpion Procdurs or Unsuccssful Oucom Rgisrion D-Rgisrion Acivion D-Acivion Invocion Excpions Whil Roming Excpions During Inrsysm Hndoff Alrn Procdurs Inrcions Wih Ohr Cllulr Srvics Asynchronous D Srvic (ADS) Cll Dlivry (CD) Cll Forwrding Busy (CFB) Cll Forwrding Dful (CFD) Cll Forwrding No Answr (CFNA) Cll Forwrding Uncondiionl (CFU) Cll Trnsfr (CT) Cll Wiing (CW) Clling Nm Prsnion (CNAP) Clling Numbr Idnificion Prsnion (CNIP) Clling Numbr Idnificion Rsricion (CNIR) Confrnc Clling (CC) D Privcy (DP) Do No Disurb (DND) Emrgncy Srvics Cllbck (9-1-1CB) Emrgncy Srvics Rconnc (9-1-1RC) 16 Vido Confrncing Srvics for cdm2000 4

5 Flxibl Alring (FA) Globl Emrgncy Cll Originion (GECO) Group 3 Fcsimil (G3 FAX) Incoming Cll Scrning Mssg Wiing Noificion (MWN) Mobil Accss Huning (MAH) Nwork Dircd Sysm Slcion (NDSS) Non-Public Mod Srvic (NP) Ovr-h-Air Srvic Provisioning (OTASP) Ovr-h-Air Prmr Adminisrion (OTAPA) Pssword Cll Accpnc (PCA) Prfrrd Lngug (PL) Prioriy Accss nd Chnnl Assignmn (PACA) Rmo Fur Conrol (RFC) Slciv Cll Accpnc (SCA) Srvic Progrmming Lock (SPL) Spch Opion Slcion (SOS) Subscribr PIN Accss (SPINA) Subscribr PIN Inrcp (SPINI) Thr-Wy Clling (3WC) Tird Srvics (TS) Usr Group ID (UGID) Voic Conrolld Srvics (VCS) Voic Mssg Rrivl (VMR) Voic Privcy (VP) 18 Appndix A (informiv): Chng Hisory Vido Confrncing Srvics for cdm2000 5

6 2 Scop Th objciv is o dfin nd o sndrdiz h funcionliy of Vido Srvics h cn b incorpord ino h oprions of wirlss lcommunicions nworks. This documn dfins h funcionl chrcrisics nd h rquirmns of h vido confrncing srvics. Th rs h mus b dfind r srvic furs nd sysm rquirmns in ordr for vido confrncing srvics o b providd in wirlss lcommunicions nworks. 3 Rfrncs 3.1 Normiv Rfrnc S.R0001 3GPP2 Spcificions Lis S.R0002 3G Cpbiliy Dscripions C D Srvic Opions for Sprd Spcrum Sysms: cdm2000 High Spd Pck D 2 Srvic Opion Informiv Rfrncs ITU-T Rcommndion H.263: Vido Coding for Low Bir Communicion. ISO/IEC ~6: Informion Tchnology Gnric Coding of Audio-Visul Objc. ITU-T Rcommndion H.323: Visul Tlphon Sysms nd Equipmn for Locl Ar Nworks which Provid Non-Gurnd Quliy of Srvic. ITU-T Rcommndion H.324: Trminl for Low Bir Mulimdi Communicion. TIA/EIA Rcommndion IS-707-A: D Srvics Opions for Sprd Spcrum Digil Cllulr Sysms. 4 Abbrviions For h purpos of his documn, h following bbrviions pply: 3G Third Gnrion sysm 3GPP2 Third Gnrion Prnrship Projc 2 BER CIF FER IETF ISDN ISO Bi Error R ITU-T Common Inrmdi Form (352 pixls x 288 lins) Frm Error R Inrn Enginring Tsk Forc Ingrd Srvics D Nwork Inrnionl Sndrds Orgnizion Vido Confrncing Srvics for cdm2000 6

7 ITU-T PSTN QCIF QoS RFC RLP SIP TIA Inrnionl Tlcommunicion Union - Tlcommunicion Scor Public Swichd Tlphon Nwork ITU-T Qurr Common Inrmdi Form (176 pixls x 144 lins) Quliy of Srvic Rqus for Commns Rdio Link Proocol Sssion Iniid Proocol Tlcommunicions Indusry Associion 5 Gnrl Th ponil bnfis of including visul mdi, in ddiion o udio, hv long bn rcognizd. Full mulimdi communicions, including voic, vido nd d, cn grly nhnc h ponil for nd usrs o communic nd o convy informion. Trnsmiing vido srms hs provn o b vry chllnging gol o in. In mos css, rnsmission of vido srms rquirs significn rsourcs; nd, hrfor, cn plc hvy burdn on h sysm. Bcus vido srms conin much mor informion hn voic lon, hy dmnd much highr hroughpu. In ordr o rspond o h nd for rducing h hroughpu rquirmn, mny vido codcs r opimizd for comprssion lon; nd, hus, r vry snsiiv o ny rnsmission rrors. Wih h dvlopmn of 3G wirlss communicions sysms, h hroughpu vilbl o ch nd usr will b grly incrsd. Wih his nwly vilbl hroughpu, mny long-wid cpbiliis nd srvics cn b providd o nd usrs. For vido srvics, h vilbl hroughpu hs rchd h hrshold whr rsonbl quliy vido srvics cn b rlizd. Vido Confrncing Srvics for cdm2000 7

8 6 Vido Confrncing Srvics 6.1 Vido Confrncing Srvic Chrcrisics Vido confrncing srvics r h srvics h provid wo-wy rnsmission of rlim vido, udio nd ohr srvics hrough h wirlss communicions sysms. Ths srvics cn b usd in vidophon, mulimdi vido confrncing, long-disnc clssroom, vido communicions in fildwork, c. For his cgory of pplicion, lncy nds o b kp o minimum. Th round-rip dly bwn h pris in vido confrnc nds o b minimizd in ordr o suppor fficin informion xchng bwn h pris. In gnrl, i is no fsibl o rcovr rrors in rnsmission by rrnsmission chniqus bcus of h dlys involvd. Occsionlly, vido nd udio quliy my nd o b compromisd o m lncy rquirmns. In his cgory of pplicions, i is imporn h h vido nd udio codcs b dsignd so s o b robus nough o cop wih h possibiliis of rrors in wirlss rnsmission chnnls. Inllign us of rror-rcovry nd rror-conclmn chniqus is ncssry o nsur grcful prformnc dgrdion on noisy chnnls. 6.2 Vido Confrncing Srvics: Scop nd Chrr Vido confrncing srvics will iniilly b rgd wo-pry vido confrncs. Mor complx scnrios will b suppord in h fuur. Vido confrncing srvics r symmric bwn h pris of h confrnc. For ll pricipns, vido confrncing srvics includ ncoding, rnsmission, inrpring, nd dcoding componns. Vido confrncing srvics includ vido nd udio codcs o ncod h vido nd udio signls cquird by h locl dvics. Afr pckizion (for pck-swichd nwork srvics) or muliplxing (for circui-swichd nwork srvics), h ncodd d is rnsmid by h undrlying wirlss srvics o ohr pricipns of h confrnc. A h sm im, vido confrncing srvics will procss incoming vido nd udio d from h rmo pricipn hrough h d-pckizr (for pck-swichd nwork srvics) or d-muliplxr (for circui-swichd srvics), nd will hn dcod his d wih corrsponding vido nd udio codcs. Th oupu is hn sn o b plyd bck locl vido nd udio dvics. Vido Confrncing Srvics for cdm2000 8

9 Th vido confrncing srvics will lso includ sysm conrol proocols for sing up clls bwn pris of h confrnc, xchnging nd ngoiing vrious opions nd cpciis, nd communicing wih nd conrolling h vrious codcs h h vido confrncing srvics us. Scop of Vido Confrncing Srvic Vido I/O Audio I/O Sysm Conrol Usr Inrfc Vido Codc Audio Codc Sysm Conrol Inrfc ) d h ic w S - k c ( P r iz k c P r o ) d h ic w S iu c ir ( C r x l lip u M r k o w N n io ic n u m m o C s l ir W Figur 1: Scop nd srucur of Vido Confrncing Srvics 6.3 Rlionship bwn Vido Confrncing Srvics nd Ohr D Srvics Th Vido Confrncing Srvics cn b buil s n ovrly wih ohr d srvic opions,.g. Pck D Srvic Opions nd Circui D Srvic Opions. Alhough i is possibl h h Vido Confrncing Srvics could uiliz h Mulimdi Cll Modl (i.., clls wih mulipl simulnous conncions of h sm or diffrn rffic yps including voic, circui-swichd d, nd pck d), i is rcommndd h h prcic of h common inrnionl sndrds o rnsmi ll h conns hrough on singl conncion b followd. This prcic nsurs h compibiliy wih ohr sysms, nd voids h xr rquirmns of synchronizing h d sn hrough spr conncions. Whn h Pck D Srvic Opion is usd, h Vido Confrncing Srvic nds o pckiz ll of h d srms bfor h d is rnsfrrd o h Pck D Srvic. Whn h Circui D Srvic Opion is usd, h Vido Confrncing Srvic shll muliplx ll of h d srms bfor h d is rnsfrrd o h Circui D Srvic. Vido Confrncing Srvics ovr h Pck D Srvic Opion nd ovr h Circui D Srvic Opion my hv diffrn QoS prmrs. Hnc, h furs nd rquirmns h r uniqu o ihr srvic will b discussd sprly in h following scions. Vido Confrncing Srvics for cdm2000 9

10 Codc for Vido Confrncing Codc for Vido Confrncing ic r v S D k c P y ili b p C / n io p O ic r v S D i u c ir C y ili b p C / n io p O Communicion Nworks (cn b combinion of Wirlss Nwork wih PSTN, ISDN or Inrn wih ppropri gwys in bwn) ic r v S D i u c ir C y ili b p C / n io p O ic r v S D k c P y ili b p C / n io p O Figur 2: Rlionship bwn Vido Confrncing Srvics nd ohr d srvics. 7 QoS Rquirmns nd Sysm Implicions In ordr o provid nd usrs wih vido confrncing srvics wih ccpbl quliy, spcific QoS rquirmns shll b imposd. Accpbl prformnc lvls mnd spcific minimum nd-o-nd QoS lvls. To m hos nd-o-nd rquirmns, spcific minimum QoS rquirmns for h wirlss communicion link lso nd o b m. Th rnsmission QoS providd by h wirlss porion nds o b highr hn rquird nd-o-nd QoS so s o provid xr room for pplicion buffring, c. Ths QoS rquirmns, oghr, will nsur vido confrncing srvics opring wih ccpbl quliy on wirlss nworks. For h cs whr on nd of h communicion is ousid of h wirlss communicions nwork, h rnsmission QoS rquirmns pply only o h porion h is wihin h wirlss nwork. 7.1 QoS Aribus Gurnd Bir (kbps) Th gurnd numbr of bis dlivrd, dividd by h durion of h priod Mximum Trnsfr Dly (msc) Th mximum dly for 95 h prcnil of h disribuion of dly for ll dlivrd d frms during h durion of h sssion. Vido Confrncing Srvics for cdm

11 7.1.3 Accpbl Trnsfr Dly (msc) Th dly h is ccpbl for h srvics. Th nwork my mk xr ffors o improv rror r, providd h h dly is blow h dly hrshold Mximum Trnsfr Dly Jir (msc) Th mximum diffrnc bwn 95 h prcnil of h disribuion of dly nd h vrg dly Frm Error R Th r of los nd corrupd d frms (.g., RLP frms) in h rnsmid d Bi Error R Th r of bi rrors in h rnsmid d. 7.2 Sysm Implicions Th wirlss communicion nwork shll sisfy h following rquirmns: Th nwork d srvics shll provid vido confrncing srvics wih h ncssry QoS for succssful xcuion of h vido confrncing srvics. Spcifying QoS prmrs shll b possibl, bsd on inrcions bwn h vido confrncing srvics nd h undrlying nwork d srvic opions. This nbls h usr o slc h Vido Confrncing Srvic quliy h bs fis usr nds. Th vido confrncing srvics shll b informd bou h quliy of h nwork d srvics if h providd QoS dclins blow h rqusd QoS. This nbls h vido srvics o dpivly djus o h vilbl nwork d srvic quliis in hos insncs whr dgrdion occurs. 7.3 QoS Propris of Vido Confrncing Applicions Th QoS propris of vido confrncing pplicions r includd in Scion 8: Furs of Vido Confrncing Srvics. 8 Furs of Vido Confrncing Srvics Th vido confrncing srvics shll suppor wo-wy rnsmission of vido confrncing in wirlss pck-swichd nd circui-swichd rnsmission nworks. 8.1 Sysm Th vido confrncing srvics sysm shll b compibl o inrnionl sndrdizd vido confrncing sysms (.g., ITU-T H.324M/H.323, IETF RFC 2543 SIP). I shll b bl o xchng conrolling informion wih pirs in form complying wih Vido Confrncing Srvics for cdm

12 inrnionl sndrdizd proocol (.g., ITU-T H.245, H.225.0). 8.2 Synchronizion Th vido confrncing srvic shll minin synchronizion bwn h vido nd udio componns of h srm. Th inr-mdi skw should b kp blow 20ms. 8.3 Throughpu Th srvic shll b bl o opr wih hroughpu of 32kbps nd highr, including 384 kbps nd 128 kbps for pck nd circui-swichd mods, rspcivly. 8.4 Vido Codc Eihr ISO MPEG-4 Visul or ITU-T H.263 (or boh) shll b suppord. A slcd s of opions for h codc should b rcommndd o minimiz h impc on boh Bs Sions nd Mobil Sions, nd o chiv br rror rsilinc prformnc. A mndory codc nd svrl opionl codcs should b dfind o minimiz h nd for rnscoding schms. 8.5 Spch Codc Appropri spch coding sndrds shll b suppord o suppor vido confrncing srvics. On spch codc should b ssignd s h dful codc. Ohr spch codcs cn b ssignd s bing opionl. 8.6 Muliplxing Inrnionl sndrd muliplxing schm (.g., ITU-T H.223) for spch nd vido (nd ohr mdi, if ncssry) should b suppord for oprion ovr circui-swichd nwork srvics. Error rsilinc of muliplxing schms should b slcd o ccommod h prformnc chrcrisics of wirlss links. 8.7 Pckizion Inrnionl sndrd pckizion schm (.g., ITU-T H.225) for ch mdi should b suppord for oprion ovr pck-swichd nwork srvics. 8.8 Plyou Dly Th vido confrncing srvic shll b bl o provid srvic of no mor hn 400 msc nd-o-nd dly. 8.9 Dly Jir Th sysm shll b bl o opr undr rnsmission dly jir of up o 200ms hrough h nwork. This will nbl rminl buffring o compns for h jir. Vido Confrncing Srvics for cdm

13 8.10 Error R Th srvic shll opr ovr chnnls wih nd-o-nd BER in h ordr of 10-3 (for circui-swichd nwork srvics) nd FER in h ordr of 10-2 (for pck-swichd nwork srvics) Picur Siz Th srvic should b bl o provid srvics for inrnionl sndrdizd picur sizs, such s CIF nd QCIF. I should lso suppor usr dfind non-sndrd picur sizs Picur sizs shll b ngoibl Dynmic Adjusmn of Confrncing Prmrs Th srvic should b bl o dynmiclly ngoi confrncing prmrs (.g., bi rs, picur siz, c.) during h sssion o dp o h usrs nds nd/or chnnl condiions Hrdwr Rsourc Consumpion Th sysm should b opimizd o consrv h procssing powr nd ohr rsourcs for h mobil quipmn, such s mmory, powr, c. 9 Procdurs for Vido Confrncing Srvics 9.1 Norml Procdurs Wih Succssful Oucom Auhorizion Th srvic my b gnrlly vilbl or my b providd fr prrrngmn wih h srvic providr for ll subscribrs wih proprly quippd Mobil Trminls D-Auhorizion Th srvic my b d-uhorizd h subscribr s rqus or for dminisriv rsons Rgisrion Rgisrion shll prmi h provisioning of QoS prmrs D-Rgisrion Th srvic shll b d-rgisrd upon d-uhorizion. Vido Confrncing Srvics for cdm

14 9.1.5 Acivion Th srvic shll b civd upon uhorizion D-Acivion Th srvic shll b d-civd upon d-uhorizion Invocion This srvic my b invokd in on of wo wys: Eihr by subscribr, loclly, wih h lphon numbr or ddrss of h rciving pry using Mobil Sion spcific procdurs, or by rciving incoming rqus from h rmo pry Norml Oprion wih Succssful Oucom Ngoiion of vrious srvic opions will b conducd bwn h confrncing pris, nd wo-wy vido confrncing d will hn b crrid hrough h link Cll Dil Rcord Th sysm should rcord cll dil informion for h following: h durion of srvic usg, h moun of pck d rnsmid, or ohr rlvn informion. 9.2 Excpion Procdurs or Unsuccssful Oucom Rgisrion D-Rgisrion Acivion D-Acivion Vido Confrncing Srvics for cdm

15 9.2.5 Invocion Filur of h invocion, du o ihr no bing uhorizd or o h clld pry s inbiliy o suppor h vido srvic, should b rsolvd by ppropri cll rmn Excpions Whil Roming Excpions During Inrsysm Hndoff 9.3 Alrn Procdurs 9.4 Inrcions Wih Ohr Cllulr Srvics Asynchronous D Srvic (ADS) Cll Dlivry (CD) Cll Forwrding Busy (CFB) Cll Forwrding Dful (CFD) Cll Forwrding No Answr (CFNA) Cll Forwrding Uncondiionl (CFU) Cll Trnsfr (CT) Cll Wiing (CW) Clling Nm Prsnion (CNAP) Vido Confrncing Srvics for cdm

16 Clling Numbr Idnificion Prsnion (CNIP) Clling Numbr Idnificion Rsricion (CNIR) Confrnc Clling (CC) No suppord in his rls D Privcy (DP) Do No Disurb (DND) Emrgncy Srvics Cllbck (9-1-1CB) Emrgncy Srvics Rconnc (9-1-1RC) Flxibl Alring (FA) Globl Emrgncy Cll Originion (GECO) Group 3 Fcsimil (G3 FAX) No suppord Incoming Cll Scrning Mssg Wiing Noificion (MWN) Mobil Accss Huning (MAH) Nwork Dircd Sysm Slcion (NDSS) Non-Public Mod Srvic (NP) Vido Confrncing Srvics for cdm

17 Ovr-h-Air Srvic Provisioning (OTASP) Ovr-h-Air Prmr Adminisrion (OTAPA) Pssword Cll Accpnc (PCA) Prfrrd Lngug (PL) Prioriy Accss nd Chnnl Assignmn (PACA) Rmo Fur Conrol (RFC) Slciv Cll Accpnc (SCA) Srvic Progrmming Lock (SPL) Spch Opion Slcion (SOS) No pplicbl Subscribr PIN Accss (SPINA) Subscribr PIN Inrcp (SPINI) Thr-Wy Clling (3WC) No suppord in his rls Tird Srvics (TS) Usr Group ID (UGID) Voic Conrolld Srvics (VCS) Vido Confrncing Srvics for cdm

18 Voic Mssg Rrivl (VMR) Voic Privcy (VP) Non idnifid (includ ll mdi yps). Vido Confrncing Srvics for cdm

19 Appndix A (informiv): Chng Hisory Vrsion D Chngd conns Scions ffcd Jnury 18, 2000 Iniil drf proposl Fbrury 19, 2000 Rvisd vrsion All Mrch 21, 2000 Rvisd vrsion All Mrch 22, 2000 Advncd vrsion All My 9, 2000 Rvisd vrsion My 10, 2000 Pr V&V vrsion Jun 5, 2000 V&V vrsion All July 10, 2000 Accpd All Vido Confrncing Srvics for cdm