From tianjijiang@chinamobile.com Thu Oct 19 16:39:54 2023 Return-Path: X-Original-To: dmm@ietfa.amsl.com Delivered-To: dmm@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 045C3C17C514; Thu, 19 Oct 2023 16:39:54 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.905 X-Spam-Level: X-Spam-Status: No, score=-6.905 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HTML_MESSAGE=0.001, MIME_QP_LONG_LINE=0.001, RCVD_IN_DNSWL_HI=-5, RCVD_IN_ZEN_BLOCKED_OPENDNS=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01, URIBL_DBL_BLOCKED_OPENDNS=0.001, URIBL_ZEN_BLOCKED_OPENDNS=0.001] autolearn=ham autolearn_force=no Received: from mail.ietf.org ([50.223.129.194]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id jdqlAcAIwGx3; Thu, 19 Oct 2023 16:39:50 -0700 (PDT) Received: from cmccmta2.chinamobile.com (cmccmta2.chinamobile.com [221.176.66.80]) by ietfa.amsl.com (Postfix) with ESMTP id 8604CC1705E1; Thu, 19 Oct 2023 16:39:46 -0700 (PDT) X-RM-TagInfo: emlType=0 X-RM-SPAM-FLAG: 00000000 Received: from spf.mail.chinamobile.com (unknown[172.16.121.85]) by rmmx-syy-dmz-app06-12006 (RichMail) with SMTP id 2ee66531be40b4b-92d8c; Fri, 20 Oct 2023 07:39:44 +0800 (CST) X-RM-TRANSID: 2ee66531be40b4b-92d8c X-RM-TagInfo: emlType=0 X-RM-SPAM-FLAG: 00000000 Received: from [172.20.10.2] (unknown[174.194.130.208]) by rmsmtp-syy-appsvrnew03-12028 (RichMail) with SMTP id 2efc6531be39ebd-12ee6; Fri, 20 Oct 2023 07:39:43 +0800 (CST) X-RM-TRANSID: 2efc6531be39ebd-12ee6 User-Agent: Microsoft-MacOutlook/10.10.1b.201012 Date: Thu, 19 Oct 2023 16:39:30 -0700 From: Tianji Jiang To: Satoru Matsushima , dmm CC: Message-ID: Thread-Topic: [DMM] DMM WG Adoption Poll (2) for "Mobile User Plane Evolution" - draft-zzhang-dmm-mup-evolution-06 References: In-Reply-To: Mime-version: 1.0 Content-type: multipart/alternative; boundary="B_3780578383_119349591" Archived-At: Subject: Re: [DMM] DMM WG Adoption Poll (2) for "Mobile User Plane Evolution" - draft-zzhang-dmm-mup-evolution-06 X-BeenThere: dmm@ietf.org X-Mailman-Version: 2.1.39 Precedence: list List-Id: Distributed Mobility Management Working Group List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 19 Oct 2023 23:39:54 -0000 > This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. --B_3780578383_119349591 Content-type: text/plain; charset="UTF-8" Content-transfer-encoding: quoted-printable Hello,=20 =20 I support the WG adoption of the draft (as a co-author and also from a tier= -1 MNO). BR, =20 -Tianji =20 =3D=3D=3D=3D FYI: Here I want to share one more case from 3GPP that would potentially be= nefit from the ANUP-like work in the future. =C2=A0 =20 The FS_5GSAT_Ph3 is a Phase-3 Satellite SID (i.e. project) of the 3GPP SA2 = Release 19. Thanks to the flexible yet complicated 5GC, the SID has one arch= itectural assumption to limit the working scope of the transport links (i.e.= , so-called inter-satellite link or ISL) in order to handle the challenges w= ith both gNB and 5GC on-board satellite.=20 =20 When both gNB and 5GC are onboard satellite(s), it implies the criticalness= of the effective communication between them. The connectivity between both = could take place on either a satellite or multi-satellites with ISL in betwe= en. While this is a very challenging issue, the FS_5GSAT_Ph3 has put the ass= umption in that the connectivity as provided by ISL (and Feeder link) is a t= ransport-layer problem and 3GPP will not touch it. Further, this SID/project= also studies the UE-Satellite-UE communication between 2 or more UEs under = the coverage of the same or different satellites. Evidently, the current gNB= +5GC architecture does face challenges given the ever-dynamic changing of th= e underlay (satellite-based) constellation network. Fortunately, ANUP-like w= ork could better serve the purpose (from both the control-plane and the user= -plane perspectives). =20 In summary,=20 3GPP does have projects that face challenges and might be ultimately & opti= mally addressed by IETF;=20 3GPP puts off addressing the issue thanks to the lack of (IETF) tools; Later (e.g., the 3GPP Rel-20 for 6G in about 12 months), 3GPP will for sure= revisit the problem. By that moment, if the ANUP-like work has matured suff= iciently, then it would be a potentially promising option for 3GPP=E2=80=99s consi= deration. =20 Thus, the ANUP-like work is indeed a viable architecture for some hot deman= ds right now and for the future. =20 =20 =20 From: dmm on behalf of Satoru Matsushima Date: Thursday, October 19, 2023 at 2:41 AM To: dmm Cc: Subject: [DMM] DMM WG Adoption Poll (2) for "Mobile User Plane Evolution" -= draft-zzhang-dmm-mup-evolution-06 =20 Dear DMMers, =20 This email starts a two-weeks DMM WG adoption poll (2) for ""Mobile User Pl= ane Evolution" - draft-zzhang-dmm-mup-evolution-06. =20 https://datatracker.ietf.org/doc/draft-zzhang-dmm-mup-evolution/ =20 Please review the draft and post any comments on this mail thread prior to = Friday, November 3rd, 2023. =20 Regards, Sri, Satoru =20 _______________________________________________ dmm mailing list dmm@ietf.o= rg https://www.ietf.org/mailman/listinfo/dmm=20 --B_3780578383_119349591 Content-type: text/html; charset="UTF-8" Content-transfer-encoding: quoted-printable

Hello,

 

I support the WG adoption of the draft (as a co-author and also fro= m a tier-1 MNO).

BR,

 

-Tianji

 

=3D=3D=3D=3D

FYI: Here I w= ant to share one more case= from 3GPP that would potentially benefit from the ANUP-like work in the fut= ure. =C2=A0

 

The FS_5GSAT_Ph3 is a Phase-3 Satellite SID (i.= e. project) of the 3GPP SA2 Release 19. Thanks to the flexible yet complicat= ed 5GC, the SID has one architectural assumption to limit the working scope = of the transport links (i.e., so-called inter-satellite link or ISL) in orde= r to handle the challenges with both gNB and 5GC on-board satellite.

 

When both gNB and 5GC are onboard satellite(s), it implies th= e criticalness of the effective communication between them. The connectivity= between both could take place on either a satellite or multi-satellites wit= h ISL in between. While this is a very challenging issue, the FS_5GSAT_Ph3 h= as put the assumption in that the connectivity as provided by ISL (and Feede= r link) is a transport-layer problem and 3GPP will not touch it. Further, th= is SID/project also studies the UE-Satellite-UE communication between= 2 or more UEs under the coverage of the same or different satellites. Evide= ntly, the current gNB+5GC architecture does face challenges given the ever-d= ynamic changing of the underlay (satellite-based) constellation network. For= tunately, ANUP-like work could better serve the purpose (from both the contr= ol-plane and the user-plane perspectives).<= o:p>

=  

In = summary,

    3GPP does have projects that face challenges and mig= ht be ultimately & optimally addressed by IETF; <= /li>
  1. = 3GPP puts off addressing the issue thanks to = the lack of (IETF) tools;
  2. L= ater (e.g., the 3GPP Rel-20 for 6G in about 12 months), 3GPP will for sure r= evisit the problem. By that moment, if the ANUP-like work has matured suffic= iently, then it would be a potentially promising option for 3GPP=E2=80=99s conside= ration.

 

Thus, the ANUP-like work is indeed a v= iable architecture for some hot demands right now and for the future.

 =

&nbs= p;

&n= bsp;

From: = dmm <dmm-bounces@ietf.org> on behalf of Satoru Matsushima <satoru.m= atsushima@gmail.com>
Date: Thursday, October 19, 2023 at 2:41 A= M
To: dmm <dmm@ietf.org>
Cc: <draft-zzhang-dmm-= mup-evolution@ietf.org>
Subject: [DMM] DMM WG Adoption Poll (2)= for "Mobile User Plane Evolution" - draft-zzhang-dmm-mup-evolutio= n-06

 

Dear DMMers,

 

This ema= il starts a two-weeks DMM WG adoption poll (2) for ""Mobile U= ser Plane Evolution" - draft-zzhang-dmm-mup-evolution-06.

 

 

Please review the draft and post any comments on this mail = thread prior to Friday, November 3rd, 2023.

 

Regards,=

Sri, Satoru

 

_______________= ________________________________ dmm mailing list dmm@ietf.org https://www.i= etf.org/mailman/listinfo/dmm

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