Re: [dispatch] SIP and GSM/UMTS with OpenBTS
Michael Hammer <michael.hammer@yaanatech.com> Fri, 14 February 2014 15:30 UTC
Return-Path: <michael.hammer@yaanatech.com>
X-Original-To: dispatch@ietfa.amsl.com
Delivered-To: dispatch@ietfa.amsl.com
Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id A62BB1A029E for <dispatch@ietfa.amsl.com>; Fri, 14 Feb 2014 07:30:48 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -2.448
X-Spam-Level:
X-Spam-Status: No, score=-2.448 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HTML_MESSAGE=0.001, RP_MATCHES_RCVD=-0.548, SPF_PASS=-0.001] autolearn=ham
Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id AHwYT1rciXub for <dispatch@ietfa.amsl.com>; Fri, 14 Feb 2014 07:30:37 -0800 (PST)
Received: from email1.corp.yaanatech.com (webmail10.yaanatech.com [63.128.177.10]) by ietfa.amsl.com (Postfix) with ESMTP id 2179F1A0242 for <dispatch@ietf.org>; Fri, 14 Feb 2014 07:30:31 -0800 (PST)
Received: from SC9-EX2K10MB1.corp.yaanatech.com ([fe80::149d:c2e1:8065:2a47]) by ex2k10hub1.corp.yaanatech.com ([::1]) with mapi id 14.03.0123.003; Fri, 14 Feb 2014 07:30:34 -0800
From: Michael Hammer <michael.hammer@yaanatech.com>
To: "mary.ietf.barnes@gmail.com" <mary.ietf.barnes@gmail.com>
Thread-Topic: [dispatch] SIP and GSM/UMTS with OpenBTS
Thread-Index: AQHPIj0OkF9riHfhQ0Se4gDBfVRQX5qmz3RggAAosQCAAAyAAIAAASOQgAC9HICAAALFAIAAAFCA//96B5CAAI2tgIAALnMAgAZ4WICAAOAQAIAACMEAgAAEaACAAAXeAIAAJYeAgAFsZwCAANo2FIABtI+AgAAqBQCAACCxgIAABEMAgAAK7oCAAFDzgP//goyfgACWJ4CAAKAtAA==
Date: Fri, 14 Feb 2014 15:30:27 +0000
Message-ID: <00C069FD01E0324C9FFCADF539701DB3BBF2B047@sc9-ex2k10mb1.corp.yaanatech.com>
References: <00C069FD01E0324C9FFCADF539701DB3BBF2A4FF@sc9-ex2k10mb1.corp.yaanatech.com> <CAHBDyN6zoWSch2CTdYFN0nnYq0dnZvr76M5iXXFMQKioZTTjtw@mail.gmail.com>
In-Reply-To: <CAHBDyN6zoWSch2CTdYFN0nnYq0dnZvr76M5iXXFMQKioZTTjtw@mail.gmail.com>
Accept-Language: en-US
Content-Language: en-US
X-MS-Has-Attach: yes
X-MS-TNEF-Correlator:
x-originating-ip: [10.17.100.96]
Content-Type: multipart/signed; protocol="application/x-pkcs7-signature"; micalg="SHA1"; boundary="----=_NextPart_000_009D_01CF296F.C63F2750"
MIME-Version: 1.0
Archived-At: http://mailarchive.ietf.org/arch/msg/dispatch/QqWhszxuu1cMKm1NUvxwxjJDL1U
Cc: "dispatch@ietf.org" <dispatch@ietf.org>
Subject: Re: [dispatch] SIP and GSM/UMTS with OpenBTS
X-BeenThere: dispatch@ietf.org
X-Mailman-Version: 2.1.15
Precedence: list
List-Id: DISPATCH Working Group Mail List <dispatch.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/dispatch>, <mailto:dispatch-request@ietf.org?subject=unsubscribe>
List-Archive: <http://www.ietf.org/mail-archive/web/dispatch/>
List-Post: <mailto:dispatch@ietf.org>
List-Help: <mailto:dispatch-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/dispatch>, <mailto:dispatch-request@ietf.org?subject=subscribe>
X-List-Received-Date: Fri, 14 Feb 2014 15:30:48 -0000
Mary, The Base Transceiver Station (BTS) is not an LTE component, it is more legacy base station technology. The eNodeB is what LTE uses, which is what IMS would be transported by. The radio access network just provides an IP path from the handset IMS client to the IMS core elements. There is no interworking at SIP layer for anything in the access network. So, 2 cases: Case 1: the radio access network does not have connectivity to the core network: solution may be to have a P2P SIP application that kicks in for local connectivity. This can be developed from current standard SIP protocol. No new SIP attributes have been proposed. Case 2: the radio access network does have connectivity to the core network: The IMS client should be able to connect to the core IMS components and operate as normal in the LTE/IMS/VoLTE network. Again, no new SIP attributes have been proposed. So, I ask again for the third time, what IETF protocol or extension thereto is being proposed? All the radio discussion as far as I can tell is just marketing, looking for approval from IETF for deploying non-compliant 3GPP base stations. I think that may be dangerous and damaging of relationship between IETF and 3GPP. I admit maybe I have missed something, but someone needs to spell out more clearly what they want to standardize. If need be draw a picture. Michael Hammer Principal Engineer <mailto:michael.hammer@yaanatech.com> michael.hammer@yaanatech.com Mobile: +1 408-202-9291 500 Yosemite Drive Suite 120 Milpitas, CA 95035 USA From: Mary Barnes [mailto:mary.ietf.barnes@gmail.com] Sent: Thursday, February 13, 2014 4:47 PM To: Michael Hammer Cc: DRAGE, Keith (Keith); dispatch@ietf.org Subject: Re: [dispatch] SIP and GSM/UMTS with OpenBTS I have stated specifics before as to the context for this and IETF: http://www.ietf.org/mail-archive/web/dispatch/current/msg05252.html One of the things they are explicitly talking about the Radio layer Call control protocol interworking with SIP. Now, if folks are saying that this interworking between these call control messages and SIP would be the same in the BTS as it would be in the MSC, then a pointer to the exact IMS spec that provides all these details would be most helpful. My guess is that this problem doesn't require the complete functionality defined by CT1. It's certainly possible that there is a subset of those specifications which could help meet their needs and I assume they would have dug through those already). But, explicit pointers to those rather than a blanket statement that IMS solves this specific problem would be really helpful. I totally agree that the proponents have a lot more detail to provide so that folks can understand the interworking and functionality that they are wanting that is relevant to IETF and SIP. Mary On Thu, Feb 13, 2014 at 2:49 PM, Michael Hammer <michael.hammer@yaanatech.com> wrote: Mary. Interworking sip with radio protocols is like saying inter working sip with ip. Makes no sense. So far I have not seen any case for work in IETF. This is more analogous to ITU- T attempt to screw up MPLS as far as I can tell. I asked the question before and still do not see a connection to any IETF work. Cut out the business case and nothing has been proposed. Sent with Good (www.good.com) ------ Original Message ------ From: Mary Barnes Sent: Thursday, February 13, 2014 at 3:19 PM To: DRAGE, Keith (Keith) Cc: dispatch@ietf.org Subject: [dispatch] SIP and GSM/UMTS with OpenBTS On Thu, Feb 13, 2014 at 9:28 AM, DRAGE, Keith (Keith) <keith.drage@alcatel-lucent.com> wrote: Ericsson is not the only vendor that sees a market for small cells, but the expectation is that the products are built to the completed 3GPP standards will be deployed in licensed spectrum by owners of that spectrum, although the boxes may well be owned by 3rd parties. These deployments already exist. I see Jim has now identified that this proposal is for licensed GSM operators in licensed GSM space. Personally, I would suggest if you believe the operators should be picking this up, you take it to 3GPP where the operators are actually present. That is the only way you will see it taken up by GSMA, which you will need to obtain interoperator agreements to use this (e.g. roaming, shared networks). 3GPP them works with IETF on any SIP extensions needed. [MB] One big problem with this proposal is that you must be a member of 3GPP/GSMA to make contributions and to participate in meetings. And, I think having to first do the work in 3GPP and then bring it to IETF would introduce a tremendous delay for something that's already been implemented/deployed. While they are proposing to reuse elements and protocols that are part of an IMS network, the core issue they have is with interworking SIP with the radio layer protocols. Certainly, one could implement all the protocols that IMS uses and then use the 3GPP based specs and proprietary headers to interwork with SIP in the Internet, but that would be terribly inefficient. [/MB] I would only see IETF having any direct part in this if the proposal was only to use unlicensed spectrum by enterprises rather than licensed operators, which Jim has negated. regards Keith _____ From: Tim Panton new [mailto:thp@westhawk.co.uk] Sent: 13 February 2014 14:50 To: DRAGE, Keith (Keith) Cc: Harvind Samra; Ivo Sedlacek; dispatch@ietf.org Subject: Re: [dispatch] SIP and GSM/UMTS with OpenBTS On 13 Feb 2014, at 14:34, DRAGE, Keith (Keith) <keith.drage@alcatel-lucent.com> wrote: Jumping in here, they are relevant in as much as there is no point in IETF working on this if there is no known market for it. Usually those type of projects are published only on April 1st. So all Ivo is asking is for you to justify that it is worth other people working on this as well as yourselves. Perhaps if you identified the spectrum you believe is available for use in the the countries identified, that would be useful. regards Keith Drage Ivo's employer seems to see a market for small cells, but looks to tie them to existing operator IMS's through internet connections "owned by themselves or a partner". http://www.telecomlead.com/enterprise-networking/mwc-2014-ericsson-announce- small-cell-service-20233/ Perhaps that's an April fools joke too (I can't see any avian carriers mentioned though)? It isn't up to the IETF to crown specific solutions. That's the market's job. T. _______________________________________________ dispatch mailing list dispatch@ietf.org https://www.ietf.org/mailman/listinfo/dispatch
- [dispatch] SIP and GSM/UMTS with OpenBTS Jim Forster
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS Tim Panton new
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS Jim Forster
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS Gullik Webjörn
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS Paul Kyzivat
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS Mary Barnes
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS Michael Hammer
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS tim panton
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS DRAGE, Keith (Keith)
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS Jim Forster
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS Jim Forster
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS Harvind Samra
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS Makaraju, Maridi Raju (Raju)
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS DRAGE, Keith (Keith)
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS DRAGE, Keith (Keith)
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS James Winterbottom
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS Makaraju, Maridi Raju (Raju)
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS James Winterbottom
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS Michael Hammer
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS Mary Barnes
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS Michael Hammer
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS Mary Barnes
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS DRAGE, Keith (Keith)
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS Jim Forster
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS Michael Hammer
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS Dale R. Worley
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS Tim Panton new
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS Gullik Webjörn
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS Jim Forster
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS Jim Forster
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS Belling, Thomas (NSN - DE/Munich)
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS Jim Forster
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS Cullen Jennings
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS Jim Forster
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS DRAGE, Keith (Keith)
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS Tim Panton new
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS DRAGE, Keith (Keith)
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS Kurtis Heimerl
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS DRAGE, Keith (Keith)
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS Tim Panton new
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS Michael Hammer
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS Kurtis Heimerl
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS Dale R. Worley
- Re: [dispatch] [SPAM] Re: SIP and GSM/UMTS with O… Tim Panton new
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS Ivo Sedlacek
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS DRAGE, Keith (Keith)
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS Jim Forster
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS Harvind Samra
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS DRAGE, Keith (Keith)
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS Tim Panton new
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS Ivo Sedlacek
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS Ivo Sedlacek
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS DRAGE, Keith (Keith)
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS Ralph A. Schmid, dk5ras
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS Jim Forster
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS Ivo Sedlacek
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS Tim Panton new
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS Tim Panton new
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS Jiri Kuthan
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS Ivo Sedlacek
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS Tim Panton new
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS Jiri Kuthan
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS Mary Barnes
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS Michael Hammer
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS Christer Holmberg
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS Mary Barnes
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS Dale R. Worley
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS Dale R. Worley
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS Kurtis Heimerl
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS Kurtis Heimerl
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS Christer Holmberg
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS Ivo Sedlacek
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS Tom Taylor
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS Belling, Thomas (NSN - DE/Munich)
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS Tom Taylor
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS Michael Hammer
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS Michael Hammer
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS Dale R. Worley
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS Dale R. Worley
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS Kurtis Heimerl
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS Kurtis Heimerl
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS Jim Forster
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS Mary Barnes
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS Michael Hammer
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS Paul Kyzivat
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS Jiri Kuthan
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS DRAGE, Keith (Keith)
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS DRAGE, Keith (Keith)
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS DRAGE, Keith (Keith)
- Re: [dispatch] SIP and GSM/UMTS with OpenBTS Michael Hammer