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Thread: AWS LTE deployment, and Verizon sites with Remote Radio Units

  1. #1
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    AWS LTE deployment, and Verizon sites with Remote Radio Units

    For the past few months, I've been posting quite a bit about Verizon's recent upgrades in NYC, and their existing eNb sites and addition of RRUs which should support new LTE physical layer in Band 4. I haven't seen much coming from others, but it would be great to start crowdsourcing this info, so we all can gain a better knowledge of VZW Band 4 footprint.

    Also, I've noticed significant drop in latency, as it dropped from 60ms average to high 20's. Perhaps the change to Ericsson RRU helped?

    Site from 6 Months ago:



    Same site today:




    Verizon Wireless 20Mhz FDD LTE

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    we have one site here that they just swapped out the LTE panels on and when they did that they added another panel on the empty slot on all sectors of the tower. The new one has two sets of connections at the top and bottom when I saw it on the ground and it does have RRU behind it. The new LTE panels might have one behind them its hard to tell. In some of the rural areas they use RRUs with the 700 panels and I can generally tell if a site has one the signal is more consistent and sometimes goes as far as 3G does on 800Mhz in our area. Also speeds are very good at low signal levels at these sites i've hit 20mbs down and around 5-6 Up with just a bar of signal.

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    Since the thread is new, this might be a good place to ask about the purpose, function, and advantages of RRUs.
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    Rru's have less signal lose due to radio being right up next to the antenna/panel. Remote radio unit.

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    So, in effect, you have backhaul right up to the antenna?

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    Quote Originally Posted by TC_Mits View Post
    So, in effect, you have backhaul right up to the antenna?
    No backhaul is connected to BTS. Here is a very simple, high level breakdown of the entire cell site: http://www.withoutthecat.com/RRH.html

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    Is there a vendor map for Verizon to see if they are using Alcatel-Lucent or Ericsson equipment?
    Your results may vary. Network performance differs per user location.

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    Verizon afaik was entirely ALU, but maybe the lack of proper solution made Verizon think of other vendors. Those RRU totally look like Ericsson RRU 4's.
    Last edited by milan03; 07-07-2013 at 09:42 AM.

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    With an RRU, the usual stuff is still done at the base, but instead of sending RF up like 100 feet of coax to antennas, the signal is sent digitally up 100 feet of probably ethernet (fiber might help reduce lightning related problems), and turned into RF right near the antenna (and the opposite, whatever radio spectrum is captured, digitized, and send down).

    I have a "poor mans" version at home for TV, a good RF USB capture stick right at the amp and antenna, and about 25 feet of USB extensions, instead of 25 feet of coax. I pull in stations 70 miles away with a (rather large grey hoverman) indoor antenna. The extra 25 feet was dropping these channels down from weak but solid to being completely undetectable (the stick will detect a station about 10 or 15 "units" below where it can get any video or audio, and they didn't even detect.) Those USB cables are probably dumping out all sorts of RF, but apparently not in UHF.


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    Thanks to all 3!

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    I dug this out, looks like ALU RRH are what's being deployed as well.
    http://www.northroyalton.org/Council...%20EXHIBIT.pdf

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    Some white paper for your pleasure...
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    Quote Originally Posted by milan03 View Post
    Some white paper for your pleasure...
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    I wonder how you are able to connect to verizon aws?

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