USRP configuration and setup requirment for 2.6Ghz Dynamic spectrum allocation

GNU Radio
1

Hi,
I am planning to buy 2 sets of USRP for my research ( Dynamic spectrum
allocation for 2.6Ghz LTE-A ). what will be the specification of USRP
for
this research ? Please
help me regarding USRP specification including antenna, daughter board
etc.

Thank you.

Regards
Hasan

2

Hello Hasan,

I’m not quite sure if I understand your question correctly: You need to
know which specification your hardware needs to fulfill for your
research’s needs?
I’m afraid nobody knows that as good as you do, as this completely
depends on what you want to do; aside from the carrier frequency you
didn’t tell us much about the things you want to do.

As a few ideas, here’s a few points you might want to decide before
asking for further details:

  • rx only, tx only, rx and tx
  • frequency range
  • minimum bandwidth
  • …

Generally, the GNU Radio mailing list might not be the best place to
ask. Consider the [email protected] mailing list, or asking
[email protected] directly with the specifications you could gather.

With best regards,
Marcus M?ller

3

Hello Mohammad Hasan:

I think you already posted this to the usrp-users list. I replied to you
there, and I’ll repeat it here.

The answer depends on what you want to do in your research project.
There
are many things to consider, such as the type of interface to the host
computer you need/want, how much bandwidth you need to capture, whether
you
want to modify the FPGA, what kind of radio performance you need, what
bit
depth you need in your sample data, etc.

An LTE channel is at most 20 MHz, and with carrier aggregation, I think
it
may be up to 100 MHz, so you might need a lot of capture bandwidth, and
that results in high data rates to the host.

Here’s an example system configuration that would probably accommodate
most
of things that you would want to do:

  • USRP X300
  • SBX-120 or CBX-120 daughterboard
  • 10 Gigabit Ethernet NIC

Note that you would need a powerful system to accommodate the high 10
GbE
sample data rates. You would probably want an Intel Core i7 or Xeon CPU
with a clock rate greater than 3 GHz and SATA-III SSD disks.

If you’re just working with a single 1.4/3/5/10/15/20 MHz channel, then
you
could probably use a USRP N200/N210 with a SBX-40 or CBX-40
daughterboard.
Also, a USRP B200/B210 might also work. Without knowing more details of
what you want to do, it is hard to suggest a specific system
configuration.

You will probably also want to use an external clock source, or a good
10
MHz and 1 PPS reference.

You can see all the USRP devices and daughterboards at:

On Fri, Aug 15, 2014 at 6:08 AM, Marcus Müller
[email protected]