From: Radioactive Frog (pbhatkoti@gmail.com)
Date: Sat Apr 22 2006 - 12:26:56 GMT-3
Hi Raja,
Many thanks for your explaination. Do you have any idea or R5 roadmap ?
Which companies are doing R&D on R5 ?
It also mean the release 3&4 enabled network BTS/RNC still need the
CISCO-1941 to transport all GSM/GRPS traffic over IP.
Frog.
On 4/22/06, Kumar Raja-Q16843 <Raja.Kumar@motorola.com> wrote:
>
> Hi Frog,
>
> In the outset, unlike CDMA the GSM network traditionally designed only
> for Voice traffic, when CMDA came to the market, the GSM family which is
> predominantly European lobby, started working on full fledged data
> capable Wireless network.
>
> First step in the direction was the GPRS network, this provides Internet
> access to the existing voice infrastructure (13Kbps), similar to wired
> Dial access which is 64 Kbps. Here you may understand the restriction is
> in the access even you might Gigs of bandwidth in the backhaul it's of
> no use.
>
> Now, the second step the EDGE network, which slightly improves the
> access bandwidth, because there isn't change in the existing access node
> i.e GSM BTS, which is again no way in competition with the CDMA 1x which
> can provide a capability of 153 Kbps. At this point "GSM Consortium and
> all those who advocates GSM like IETF for IP) have no way but to change
> the Access Nodes i.e. BTS that's where the new Node-B (UMTS BTS called
> Node-B) and RNC (analogous to GSM BSC) this would change the entire
> access node infrastructure. Here again in order to take advantage of
> boom in the data infrastructure in the past 10 years like the (Metro
> Ethernet and its uncles, brothers) this is exactly where Cisco MWR 1900
> comes into picture, this is widely used by Motorola in its CDMA 2000
> architecture as the access router for the BTS. Also one need to
> understand in Europe this access is predominantly ATM unlike in US and
> other countries it is MPLS, since the big brother of GSM are sitting in
> Europe and they are always against anything US advocates irrespective of
> whether it is good or bad that's the reason they have gone against MPLS.
>
> Hope the above gives the understanding of the dynamic of Cellular
> Infrastructure, now at the end user level you cant really do much why
> because of the attraction of IP and IP and so on, then there is no way
> but to give IP to each and every User Handset, then when you give IP in
> the core you have IP Multimedia Subsystem the IMS, this is Release 5
> your question R5, in which SIP as defacto signaling protocol. This is
> expected to make existing GSM/GPRS/EDGE/UMTS to go ALL IP eventually to
> compete CDMA in all it direction.
>
> Walk into any book store check this book, Convergent Technologies by
> three authors Bannister, Mather Paul and one more I couldn't recollect
> right now, there is no better on this subject than this.
>
> Thanks and regards,
>
> Raja Kumar
> Core Engineering Group
> Motorola
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> Radioactive Frog
> Sent: Saturday, April 22, 2006 5:06 AM
> To: kevin gannon
> Cc: ccielab
> Subject: Re: Cisco MWR-1941 LUB optimization
>
> Kevin,
> Thanks for your reply. Can you please explain whats R5 ? any url for
> that ?
> Which product will support R5?
>
> Thanks in advance
> frog
>
>
> On 4/22/06, kevin gannon <kevin@gannons.net> wrote:
> >
> > We dont use it however from the presentations I have seen it basically
>
> > compresses the CODECs again and offers some VAD additions. The cisco
> > figures were showing 30% savings over E1 transport. It might also be
> > worth looking at ATM contention on the backend I know we moved from
> > Nokia ATM switches to Lucent PSAX's to groom the B node links and made
>
> > some good transport savings.
> >
> > You might be better waiting for R5 to do IP to the edge.
> >
> > Regards
> > Kevin
> >
> >
> > On 4/21/06, Radioactive Frog <pbhatkoti@gmail.com> wrote:
> >
> > > Hi Group,
> > Has anybody had any experience with Cisco MWR-1941, TN/lub
> > optimization over ETHERNET ?
> > I know it's a new and hot psudeowire emolutoin over IP for optimizing
>
> > and transporting of 3G/HSPDA traffic.
> > The RNC and BTS has an LUB interface and supports ATM pvcs/svcs.
> >
> > Any good docs which shows how the technology works?
> >
> > Thanks
> >
> > Frog.
> >
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