Radios are out the door and in operators hands. Can we get some results of the beta posted to see what we are to expect? We have lots of discussions about the epmp3000 but it’s been completely dead on the 450m.
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Hi,
I will try and see if I can collect any real world 3GHz beta results, but in the meantime how about something from our chamber as something to aim for :)
20MHz, 2.5mz, 85% DL, 1 mile, 2 contention slots, 12 SMs
best regards,
Andy.
Can you show me results of total throughput deliverable to a single client? We have to start offering 100 meg plans. My understanding on the Medusa is it’s like having 8x8 as 4-450i radios in the 1 shell (just like how 14x14 is explained as 7 radios). But you can actually max out the individual radios before maxing out the entire radio by having maybe to many customers in a grouping zone. So we should expect 119 meg downlink capacity per radio Chain?
@NetOpsCom wrote:
Can you show me results of total throughput deliverable to a single client? We have to start offering 100 meg plans. My understanding on the Medusa is it’s like having 8x8 as 4-450i radios in the 1 shell (just like how 14x14 is explained as 7 radios). But you can actually max out the individual radios before maxing out the entire radio by having maybe to many customers in a grouping zone. So we should expect 119 meg downlink capacity per radio Chain?
I think you've got the right idea. If I restrict the test to 4 SMs and talk to them all simulataneously that will max out the SM and the AP on the 3GHz 450m. This is still 20MHz.
Andy.
For a single client you could use the throughput calculator and set the MUX gain to 1 and that would give you an idea of channel size to provide those speeds.
There is no real gain to a single client comparing it to a 450i as the client is still 2x2 MIMO. the 450m is for sector capacity.
Here is a result from 40MHz, note the mod rate is only 6X in DL & UL which should be more acheivable in the field.
190+Mbps (Agg) per SM.
Andy.
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How easy is it going to be to get a channel larger then 10mhz especially with the need to do ABAB in most cases?
@hci wrote:How easy is it going to be to get a channel larger then 10mhz especially with the need to do ABAB in most cases?
With how long it's taking to get CBRS going, it could be another year or more before it's available for use. That being said, when it does become available, there's quite a bit of GAA CBRS spectrum that will be available. If you're providing service in a rural area I think the chances are very good at getting 20MHz or more. If you're trying to provide service in a city/urban environment with lots of carrier presence, it will be more difficult to find large blocks that are free.
This is a quote from Baicells titled Breaking Down the CBRS Rules: "General Authorized Access (GAA). This is the lowest tier, and to best understand it, think of it as being almost exactly as you operate today in the 3.65 GHz band. No other GAA has rank over another, and they all have to try to cooperate to co-exist, except with the added benefit that theynow have more room to do so. Why? Well, remember, only 70% of the lower 100 MHz is reserved for PALs. That leaves 30% — or 30 MHz – available for GAA use, and this is on top of the 3.65-3.7 50MHz range, which will stay all GAA (except for current registered users who get additional incumbent protection through mid 2020). As well, the expectation that a great swath of the country will not have all the PALs gobbled up, and anything not bought as a PAL gets thrown into the GAA pool, making even further spectrum available for GAA use. So you have 80 MHz minimum that will always be available for GAA in the entire 3.55-3.70 GHz range compared to the 50MHz you now have in the NN band."