I have Alpha 4x4 65 degree sectors. This eNB is Split Sector SplitModef1f2;. I'm running Subframe 2/0.
What is the impact of having the Sectors not at least 90 degrees off from each other ? I ask because we increased tilt to 10 degrees today and it had a minimal impact on the problem and over half the of the UE's were unable to connect because the foot print was so small. At +6 and -50 degrees bearing I saw a 6dB improvement in the noise floor, and all UE's connected but that means the Alpha's are only separated by ~60 degrees. They are 10' apart horizontally. If I turn the other Sector further out to avoid that then it will be hitting the next tower 35 Km away so I'd prefer not to do that. Now I see in BV that UpLink utilization is higher than it has ever been at 91% (peak was ~75% previously) vs. DL at 58%. I expect UL to drop or at least stay the same since we mitigated the noise slightly. I stopped frequency locking the UE's - could the UL utilization be caused by UE's that are on the 'wrong' sector ? Or am I beating myself with a stick due to the Sectors being so "close" now? Cheers, -- Ian Fraser goZoom.ca Inc. 195 Libby's Rd. McNab-Braeside K7S0E1 877(613) 622 0093 ext 21 On 19/09/2016 1:18 PM, Andreas Wiatowski wrote: > Sounds good. To note...in 2.3...our furthest tower is 110KM from an AT&T > site...and we are affected heavily during ducting periods. It is real...and > it sucks...hopefully we will have a good news story once we are done with > AT&T. > > Cheers, > ______________________________ > Andreas Wiatowski | CEO > Silo Wireless Inc. > Email [email protected] > 19 Sage Court > Brantford, Ontario N3R 7T4 (CANADA) > Tel +1.519.449.5656 Extension-600|Fax +1.519.449.5536 |Toll Free > +1.866.727.4138 > > -----Original Message----- > From: [email protected] [mailto:[email protected]] On Behalf Of > Paul Vaughn > Sent: Monday, September 19, 2016 1:12 PM > To: [email protected] > Subject: Re: [Telrad] Down tilt > > Appreciate the feedback on the down tilt. I think we are currently at 3 > degrees with this one. The truck just pulled out to go play with this a > little. I was excited by the upgrade over the weekend. I also upgraded a > handful of clients hoping to see great improvements but I actually got a text > this morning saying it was worse! The client went from having around 1 meg > upload to .04 when he finally got the test to load. > > I don't see how we can have any interference on this 2.5 license. We are the > only licenses around here for miles and this is our only deployment so far. > We will see how this helps. > > Thanks again for the feedback. > > Paul R. Vaughn > Tennessee Wireless > (931) 996-2050 > > -----Original Message----- > From: [email protected] [mailto:[email protected]] On Behalf Of > [email protected] > Sent: Sunday, September 18, 2016 11:00 AM > To: [email protected] > Subject: Telrad Digest, Vol 23, Issue 20 > > Send Telrad mailing list submissions to > [email protected] > > To subscribe or unsubscribe via the World Wide Web, visit > http://lists.wispa.org/mailman/listinfo/telrad > or, via email, send a message with subject or body 'help' to > [email protected] > > You can reach the person managing the list at > [email protected] > > When replying, please edit your Subject line so it is more specific than "Re: > Contents of Telrad digest..." > > > Today's Topics: > > 1. Re: Down tilt (Andreas Wiatowski) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Sun, 18 Sep 2016 13:48:32 +0000 > From: Andreas Wiatowski <[email protected]> > Subject: Re: [Telrad] Down tilt > To: "[email protected]" <[email protected]> > Message-ID: <[email protected]> > Content-Type: text/plain; charset="windows-1252" > > I would literally go to the furthest point you wish to cover with a UR or > take your most distant subscriber and tilt in a live environment. The LTE > gear carries far, and I think many of us are causing self interference. > > If your HAAT (height above average terrain) is much lower that your site (say > you have a tower on a hill or mountian) then you need to take this into > account as well. The more tilt you can use, the less interference your > going to hear... The better you are going to perform. We anticipate having to > tilt upto 10deg at some sites. > > > > Cheers, > ______________________________ > Andreas Wiatowski | CEO > Silo Wireless Inc. > Email [email protected]<mailto:[email protected]> > 19 Sage Court > Brantford, Ontario N3R 7T4 (CANADA) > Tel +1.519.449.5656<tel:+1.519.449.5656> Extension-600|Fax > +1.519.449.5536<tel:+1.519.449.5536> |Toll Free > +1.866.727.4138<tel:+1.866.727.4138> > > > -------- Original message -------- > From: Ian Fraser <[email protected]> > Date: 2016-09-18 9:35 AM (GMT-05:00) > To: [email protected] > Subject: [Telrad] Down tilt > > > > I have not needed to be particularly careful with my TDMA gear so I have > previously used Radio Molbile to give me an idea of tilt, but LTE is still > causing me grief in 3.65 and I need more aggressive tilt if I'm going to make > this kit work. > > Can someone validate the equation: > https://www.pasternack.com/t-calculator-antenna-downtilt.aspx > > [cid:[email protected]] > > H=height > > t=transmitter > > r=receiver > > dt=downtilt > > bw=antenna beamwidth (vertical) > > Distance=distance from t to r on a horizontal plain at center of the beam > > Rad/inner/outer = inner and outer edge of the beam (assume -3dB) > > Assuming level ground and given : > > t=220 meters > > r=10 meters > > dt=5 > > bw=7 > > = > > Receiver Distance: 2400 m > Inner Coverage Radius: 1405 m > Outer Coverage Radius: 8020 m > > > Cheers, > > Ian > > On 17/09/2016 10:24 PM, Andreas Wiatowski wrote: > > Paul, > > We are using the 3000 in band 40 in a 10Mhz channel with filters because it > is the WCS band adjacent to Sirius XM. > > We see about 34Mbps x 3-6Mbps UL. > > If you are in an area with anyone within 50Miles of your band, you really > want to know what they are running and make sure that you are timed via SA > and SFF. > > I would recommend serious down tilt. We have gone to 5-7deg with tremendous > performance increases on the uplink. We were at 3-4deg and had a hard time > getting 4Mbps on uplink, since changing a few sites to more aggressive > tilt...we have seen a serious improvement in uplink. 2Ghz...carries far!. We > are running SA1 SSF1. Please keep in mind we have only 2 10Mhz channels and > are running 4 sectros back to back with approximately 10KM between tower > sites... so more small cell than Macro. > > I just finished picking up another Anritsu BTS Master with FDD LTE options > and I'm going to add the TDD LTE options to it. It will give me OTA (Over > the air) demodulation showing RB usage, EVM (error vector magnitude) > measurements, constellation diagrams and a read of all OTA PCI ID's from a > tower and adjacent with dominance statistics. I can get my hands on another 1 > or 2 instruments for around 4K. I'm not sure how much adding the TDD options > will be, but I know it will be well worth it. > > We also purchased a Sunsight AAT for Azimuth and tilt. We are working on a > deadly accurate RNP moving forward. Already on 2 of the towers, the azimuths > were out by a 10-15 deg magnitude and tilt was not 100%. > > We are hoping with these tweaks we will be able to take our LTE network to > the next level of quality. > > > Cheers, > ______________________________ > Andreas Wiatowski | CEO > Silo Wireless Inc. > Email [email protected]<mailto:[email protected]> > 19 Sage Court > Brantford, Ontario N3R 7T4 (CANADA) > Tel +1.519.449.5656 Extension-600|Fax +1.519.449.5536 |Toll Free > +1.866.727.4138 > > -----Original Message----- > From: [email protected]<mailto:[email protected]> > [mailto:[email protected]] On Behalf Of Paul Vaughn > Sent: Saturday, September 17, 2016 2:33 PM > To: [email protected]<mailto:[email protected]> > Subject: [Telrad] Compact 3000 4X4 Patch > > Anyone have a status on the following? > > "Note 4x4 on the Compact 3000 is not supported in this build but coming > within a few weeks. So only the Compact 1000 for now, Thanks Nick" - This > was 7/29/2016. > > I finally stayed up through the night to get everything updated to the 6.6 > only to find out by reading the fine print afterwards that 4X4 was not > supported yet. Long frustrating night. And no help for the clients who are > suffering poor uploads. > > We are running the 3000 on 15 mhz band 41. Has anyone found upload to be an > issue? It seems like I don't have any clients running more that a few > hundred k upload. Occasionaly I find one that will pull 2 megs. I'd be > interested to know what others are doing and if there is something we can do > differently. If I recall when we set this up we set it at 75/25 for the > split. I'm looking up info now on playing with that setting a little. But > honestly with only 15 mhz to play with we don't have a lot of download to > give up. Anyone else running this way, or have thoughts or comments on the > setup? > > Thanks - Paul > > Paul R. Vaughn > Tennessee Wireless > (931) 996-2050 > > > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: > http://lists.wispa.org/mailman/private/telrad/attachments/20160918/47be40d1/attachment-0001.html > -------------- next part -------------- > A non-text attachment was scrubbed... > Name: mniopmioccmpcicc.png > Type: image/png > Size: 3051 bytes > Desc: mniopmioccmpcicc.png > Url : > http://lists.wispa.org/mailman/private/telrad/attachments/20160918/47be40d1/attachment-0002.png > -------------- next part -------------- > A non-text attachment was scrubbed... > Name: mniopmioccmpcicc.png > Type: image/png > Size: 3051 bytes > Desc: mniopmioccmpcicc.png > Url : > http://lists.wispa.org/mailman/private/telrad/attachments/20160918/47be40d1/attachment-0003.png > > ------------------------------ > > _______________________________________________ > Telrad mailing list > [email protected] > http://lists.wispa.org/mailman/listinfo/telrad > > > End of Telrad Digest, Vol 23, Issue 20 > ************************************** > _______________________________________________ > 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
