Yes, I believe the EPC handles all of that. On Tue, Oct 18, 2016 at 9:47 PM, Bryce Duchcherer <[email protected]> wrote:
> Pretty sure it is in the EPC. > > Bryce D > NETAGO > > -----Original Message----- > From: [email protected] [mailto:[email protected]] On > Behalf Of Andreas Wiatowski > Sent: Tuesday, October 18, 2016 18:41 > To: [email protected] > Subject: Re: [Telrad] AMBR > > Thant is a great question…., I believe in WiMAX it was at the UE in the > form of service flows….I think that in LTE it is at the EPC…Nick is > probably the best to answer this. > > Cheers, > > Andreas Wiatowski, CEO > Silo Wireless Inc. > 519-449-5656 x-600 > > > On 2016-10-18, 7:41 PM, "[email protected] on behalf of Nathan > Anderson" <[email protected] on behalf of [email protected]> wrote: > > Out of curiosity, does anyone know, according to the LTE spec, where > in particular the down/up AMBRs are actually being enforced on the > network? Is it all taking place at the EPC? Or does the EPC inform the > eNB of UE-AMBR and have the eNB take it into account as it schedules > things? Or is the UE informed of it when it attaches to the network and it > is the UE's responsibility to enforce it in whole (both down/up) or in part > (just up)? > > When I first dived into DOCSIS, I remember being shocked to learn that > the bandwidth constraints were values included in the provisioning file > that was fed to the cable modem, and it was in fact up to the modem to > enforce the specified throughput limits. I think the explanation I > remember hearing is that it is better to have the limit enforcement > distributed instead of centralized because at least in the uplink > direction, the modem would be free to schedule/queue packets it was > transmitting in an intelligent way rather than force the network to > throttle things more primitively by simply throwing packets out (which will > slow down TCP, but not necessarily contain a barrage of UDP). However, > this meant that vulnerabilities in modem firmware could allow for > circumvention/abuse by the customer (which is not just academic and has in > fact happened). So there are some trade-offs. I am interested to know > which way the 3GPP leaned. (And perhaps the scheduling mechanisms that LTE > uses make the centralized vs. distributed debate a non-starter anyway.) > > Thanks, > > -- > Nathan Anderson > First Step Internet, LLC > [email protected] > > _______________________________________________ > Telrad mailing list > [email protected] > http://lists.wispa.org/mailman/listinfo/telrad > > > _______________________________________________ > Telrad mailing list > [email protected] > http://lists.wispa.org/mailman/listinfo/telrad > _______________________________________________ > Telrad mailing list > [email protected] > http://lists.wispa.org/mailman/listinfo/telrad > -- *Matthew Carpenter* *806-316-5071 office* *806-236-9558 cell*
_______________________________________________ Telrad mailing list [email protected] http://lists.wispa.org/mailman/listinfo/telrad
