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lilotimz    10,864

Nokia Networks

Flexi Zone Micro High Power 2x20W BTS

 

This equipment is what is known as a "mini macro" for it has the footprint of a low powered small cell unit but the power output that is like those of a macro site.

 

Such units are for densification purposes where it fills in the gaps between existing minimal to no coverage areas without substantial costs associated with deploying a new macro site.

 

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OrprcK6.jpg

 

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Photo Credits: /u/smacksa from /r/tmobile

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imex99    1,187

 

Nokia Networks

Flexi Zone Micro High Power 2x20W BTS

This equipment is what is known as a "mini macro" for it has the footprint of a low powered small cell unit but the power output that is like those of a macro site.

 

Such units are for densification purposes where it fills in the gaps between existing minimal to no coverage areas without substantial costs associated with deploying a new macro site.

 

 

 

Photo Credits: /u/smacksa from /r/tmobile

 

Deployed nationwide soon™?

 

Sent from my SM-G935P using Tapatalk

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caspar347    1,504

Deployed nationwide soon™?

 

Sent from my SM-G935P using Tapatalk

All vendor zones?  :drool:

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bigmachine    712

Do we know if this is traditional point to point backhaul or is it B41 backhaul?

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Dkoellerwx    7,906

Do we know if this is traditional point to point backhaul or is it B41 backhaul?

 

This particular site was using microwave. It will likely be a mix of options when deployed elsewhere.

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bucdenny    824

If using B41 for backhaul, is it limited to what is deployed on the donor macro?

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Volaris    61

Exciting to see! 

 

Is this an omnidirectional one sector site, or does the 2x20 watt imply it's a two sector design? 

 

The design doesn't look bad. I can see it fitting on many pre-existing wooden power/telephone polls.

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Shima    25

Pretty sweet stuff. When can we get fill in here in West Michigan. Honestly, where I can get good sprint B41 x2 it's 100 plus mpbs download so we just need to fill in the gaps. I ran a speed test the other day against a friend with AT&T and he was embarrassed about how slow their network was when it died with latency test (GRANDVILLE). We seriously smoked them. Anyway, if sprint fills in with small cells, we will rule the market imo.

 

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airb330    20

Will we see more of these vs. the pico cells that were posted in 2015? None of those have shown up in the Philly market, but I am hopeful for the mini macro.

 

No at&t or vzw small cell developments here either. Only T-mobile due to MetroPCS building out a DAS years ago...

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RichardXy    123

I'm so sick of getting 3G in San Diego. I hope we get hundreds of these going up soon here.

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ajm8127    72

Exciting to see! 

 

Is this an omnidirectional one sector site, or does the 2x20 watt imply it's a two sector design? 

 

The design doesn't look bad. I can see it fitting on many pre-existing wooden power/telephone polls.

 

That antenna appears omnidirection (maybe pseudo-omni), but a panel antenna could be used instead depending on the coverage target.

 

2x20 means the radio has two ports capable of 20 W each. Each B41 channel needs to transmit and receive on both ports to create the two parallel paths necessary for MIMO. Typically you deploy one radio per sector. 20 W leaves room for 2 or 3 CA using 10 or 6.667 watts per channel respectively assuming the radio supports more than a 20 MHz bandwidth and the rest of the system supports CA (modem and controller).  I would have to image Sprint required at least 2 CA support.

 

For reference the macro site B41 radios are 8x20 watts. They have eight ports to allow beam forming. Also 8 ports allows 8 branch receive diversity which improves the UL performance. UL is typically what limits a cell's size. This is especially important in TDD because you are not receiving all of the time (sometimes you are transmitting) so the average received power is lower than FDD for a given frequency. FDD typically uses 4 branch receive diversity for B25 (B26 uses 2 branch) so there is a 3 dB (twice as much) boost to the UL link budget using 8 branch Rx vs. 4 branch. You still have higher propagation losses at 2500 MHz versus 1900 MHz, but you make 3 dB of that back by using twice an many ports to receive the signal.

 

These mini-macros only have 2 ports (8 cut in half twice) so right there you have a 6 dB reduction in the link budget vs. a macro site 2.5 GHZ TDD.

 

The existing ALU (Nokia) B25 small cells (MCO) use a 2x1W transmitter configuration. You can use technologies like enhanced  inter-cell interference coordination (eICIC) to extend the footprint of the small cell, but the MCO is still limited, and you only have 5 MHz FDD on an MCO. These 2x20W B41 mini-macros should be better in almost every way.

 

If using B41 for BH you would need to use resources of a nearby macro. However, in many cases B41 macros might not be highly loaded because of limitations of the 2.5 GHz frequency so these mini-macors can be use the extend the range. Tim has an excellent article on this. The best BH is fiber, but microwave can be cheaper, and UE relay is cheap and fast to deploy. You could come back and add fiber BH later as capacity needs grow.

 

http://s4gru.com/index.php?/blog/1/entry-404-sprint-enters-the-relay-race/

 

I've heard rumors of Nokia having these, nice to see one deployed.

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lilotimz    10,864

That antenna appears omnidirection (maybe pseudo-omni), but a panel antenna could be used instead depending on the coverage target.

 

2x20 means the radio has two ports capable of 20 W each. Each B41 channel needs to transmit and receive on both ports to create the two parallel paths necessary for MIMO. Typically you deploy one radio per sector. 20 W leaves room for 2 or 3 CA using 10 or 6.667 watts per channel respectively assuming the radio supports more than a 20 MHz bandwidth and the rest of the system supports CA (modem and controller). I would have to image Sprint required at least 2 CA support.

 

For reference the macro site B41 radios are 8x20 watts. They have eight ports to allow beam forming. Also 8 ports allows 8 branch receive diversity which improves the UL performance. UL is typically what limits a cell's size. This is especially important in TDD because you are not receiving all of the time (sometimes you are transmitting) so the average received power is lower than FDD for a given frequency. FDD typically uses 4 branch receive diversity for B25 (B26 uses 2 branch) so there is a 3 dB (twice as much) boost to the UL link budget using 8 branch Rx vs. 4 branch. You still have higher propagation losses at 2500 MHz versus 1900 MHz, but you make 3 dB of that back by using twice an many ports to receive the signal.

 

These mini-macros only have 2 ports (8 cut in half twice) so right there you have a 6 dB reduction in the link budget vs. a macro site 2.5 GHZ TDD.

 

The existing ALU (Nokia) B25 small cells (MCO) use a 2x1W transmitter configuration. You can use technologies like enhanced inter-cell interference coordination (eICIC) to extend the footprint of the small cell, but the MCO is still limited, and you only have 5 MHz FDD on an MCO. These 2x20W B41 mini-macros should be better in almost every way.

 

If using B41 for BH you would need to use resources of a nearby macro. However, in many cases B41 macros might not be highly loaded because of limitations of the 2.5 GHz frequency so these mini-macors can be use the extend the range. Tim has an excellent article on this. The best BH is fiber, but microwave can be cheaper, and UE relay is cheap and fast to deploy. You could come back and add fiber BH later as capacity needs grow.

 

http://s4gru.com/index.php?/blog/1/entry-404-sprint-enters-the-relay-race/

 

I've heard rumors of Nokia having these, nice to see one deployed.

With the complete acquisition of Alcatel-Lucent by Nokia Networks, the superior Nokia networks equipment will be quite the sight to behold.

 

Especially in the future when they integrate the Alcatel-Lucent cdma portfolio into their own flexi 10 system so that they can deploy their very well regarded macro micro flexi hot zones.

 

Also vast majority of small cells are limited to 2x2 due to size limitation and 2 carrier aggregation.

 

Nokia does have a 4x4 flexi zone 2 pico unit but only for 3.5 GHz at this moment.

 

Sent from my Nexus 5X

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ajm8127    72

With the complete acquisition of Alcatel-Lucent by Nokia Networks, the superior Nokia networks equipment will be quite the sight to behold.

 

Especially in the future when they integrate the Alcatel-Lucent cdma portfolio into their own flexi 10 system so that they can deploy their very well regarded macro micro flexi hot zones.

 

Also vast majority of small cells are limited to 2x2 due to size limitation and 2 carrier aggregation.

 

Nokia does have a 4x4 flexi zone 2 pico unit but only for 3.5 GHz at this moment.

 

Sent from my Nexus 5X

 

Yes, I am looking forward to seeing the Nokia equipment. ALU always seemed a little behind.

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KenMR    0

Per the photos, the backhaul is Fastback Networks IBR microwave radio. Nice radio! Truly does NLOS.

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JWMaloney    769

Tracking these is going to be a nightmare. Is there really no way they can share an eNodeB ID on a macro site?

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lilotimz    10,864

Tracking these is going to be a nightmare. Is there really no way they can share an eNodeB ID on a macro site?

Brand new GCI/PCI and EARFCN at least for B41 small cells. Haven't encountered a B26 one yet.

 

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JWMaloney    769

Brand new GCI/PCI and EARFCN at least for B41 small cells. Haven't encountered a B26 one yet.

 

Sent from my Pixel using Tapatalk

 

I expected a new GCI. I didn't expect a new GCI per sector (although it does make sense given the name mini macro).

 

zwKS32B.png

 

EDIT: These are using the same EARFCNs as the first 2 carriers on the 8T8R sites.

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lilotimz    10,864

I expected a new GCI. I didn't expect a new GCI per sector (although it does make sense given the name mini macro).

 

zwKS32B.png

 

EDIT: These are using the same EARFCNs as the first 2 carriers on the 8T8R sites.

Oh. If it's a regular site colocation with macro site then yeah it'll have different GCI but same EARFCN as the macro network.. Each mini macro is considered its own eNB and as such must each by identified individually.

 

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