LTE and USRP


#1

Hello,

I considering the possibility to purchase some USRP boards. My objective
is
to work with open source code of LTE. I’ve seen the OpenLTE project
(http://openlte.sourceforge.net/,
http://sourceforge.net/projects/openlte/)
which looks pretty nice. It seems that it works with USRP B2X0 (Bus
Series).
Do you know if it is compatible with USRP networked series (USRP
N200/N210)?

Do you know any other project that is developing LTE using
gnu-radio/USRP?

Thanks in advance for your help,
Regards,
Baldo


#2

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Hi Baldo,

there is also gr-lte [1] as another alternative for an LTE receiver in
this case.

happy hacking
Johannes

[1] https://github.com/kit-cel/gr-lte

On 15.05.2014 11:13, Coll Perales, Baldomero wrote:

gnu-radio/USRP?
https://lists.gnu.org/mailman/listinfo/discuss-gnuradio

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#3

Thanks Marcus for your fast response. I’ll do it :).

I’m adding this question again (sorry): Do you know any other project
that is developing LTE using gnu-radio/USRP?

Regards,
Baldo

De: Marcus Müller [mailto:removed_email_address@domain.invalid]
Enviado el: jueves, 15 de mayo de 2014 11:20
Para: Coll Perales, Baldomero
Asunto: Re: [Discuss-gnuradio] LTE and USRP

Hello Baldo,
UHD makes device access absolutely transparent – so if you can use one
USRP for a purpose, you can also use another one, if it meets the specs.
As far as I can see, you can do downlink captures even with low-end
non-UHD devices like the rtl-sdr dongles, so this should be a breeze.
From a spec point of view, N200 is mainly inferior to B200 by means of
maximum achievable sampling rate, so as long as your f_sample stays low
enough, everything doable with an B200 should be doable with an N200,
too.
However, since openLTE is but one of many applications of the USRP
device class, I think the right way to deal with that is writing an emai
to the openLTE mailing list :slight_smile:

Greetings,
Marcus

On Thu, May 15, 2014 at 11:13 AM, Coll Perales, Baldomero removed_email_address@domain.invalid
wrote:
Hello,

I considering the possibility to purchase some USRP boards. My objective
is
to work with open source code of LTE. I’ve seen the OpenLTE project
(http://openlte.sourceforge.net/,
http://sourceforge.net/projects/openlte/)
which looks pretty nice. It seems that it works with USRP B2X0 (Bus
Series).
Do you know if it is compatible with USRP networked series (USRP
N200/N210)?

Do you know any other project that is developing LTE using
gnu-radio/USRP?

Thanks in advance for your help,
Regards,
Baldo


Discuss-gnuradio mailing list
removed_email_address@domain.invalid
https://lists.gnu.org/mailman/listinfo/discuss-gnuradio


#4

On 15.05.2014 11:35, Coll Perales, Baldomero wrote:

Thanks Marcus for your fast response. I’ll do it :).

I’m adding this question again (sorry): Do you know any other project
that is developing LTE using gnu-radio/USRP?

AFAIK, Johannes’ project is the only one that uses GNU Radio, but
there’s other stand-alone LTE projects, such as OpenAirInterface
(http://www.openairinterface.org/) and libLTE
(https://github.com/ismagom/liblte).

Using these is considered advanced usage, though – I assume you know
what you’re doing, but just in case.

Martin


#5

Hi Baldo,

There is also LibLTE - https://github.com/libLTE/libLTE
It’s a modular LTE library with minimal external dependencies. It’s
compatible with UHD devices and is LGPLv3.
It’s under development but currently provides eNodeB and UE
implementations for most of the downlink. Among the example programs are
downlink PSS and MIB scanners as well as an initial UE implementation
which receives and demodulates the downlink broadcast channel (PBCH).
The UE example has been tested with both test and live commercial
eNodeBs.
As it’s a modular library, it doesn’t depend on a specific framework
like gnuradio but can be used easily in most SDR frameworks. We’re
currently porting the UE example to gnuradio and hope to make it
available soon.

Regards,
Paul


#6

Thanks Paul,

LibLTE looks like very promising. I’ll follow the advances. By the way,
do you know if it will be compatible with USRP2 or only with new ones (N
Series - UHD-based)?

Thanks,
Baldo

-----Mensaje original-----
De: Paul Sutton [mailto:removed_email_address@domain.invalid]
Enviado el: jueves, 15 de mayo de 2014 14:31
Para: Coll Perales, Baldomero
CC: removed_email_address@domain.invalid
Asunto: Re: [Discuss-gnuradio] LTE and USRP

Hi Baldo,

There is also LibLTE - https://github.com/libLTE/libLTE It’s a modular
LTE library with minimal external dependencies. It’s compatible with UHD
devices and is LGPLv3.
It’s under development but currently provides eNodeB and UE
implementations for most of the downlink. Among the example programs are
downlink PSS and MIB scanners as well as an initial UE implementation
which receives and demodulates the downlink broadcast channel (PBCH).
The UE example has been tested with both test and live commercial
eNodeBs.
As it’s a modular library, it doesn’t depend on a specific framework
like gnuradio but can be used easily in most SDR frameworks. We’re
currently porting the UE example to gnuradio and hope to make it
available soon.

Regards,
Paul


#7

USRP2 is also UHD-based and it is compatible with LibLTE.

On 15/05/14 13:56, Coll Perales, Baldomero wrote:

Para: Coll Perales, Baldomero
Regards,

De: Marcus Müller [mailto:removed_email_address@domain.invalid] Enviado el:

which looks pretty nice. It seems that it works with USRP B2X0 (Bus Series).

Discuss-gnuradio mailing list
+353-87-9813473 | removed_email_address@domain.invalid

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Paul Sutton Ph.D.

Software Radio Systems (SRS)
http://www.softwareradiosystems.com

+353-87-9813473 | removed_email_address@domain.invalid

PGP Key ID: 3B4A5292
Fingerprint: B0AC 19C9 B228 A6EB 86E1 82B2 90C7 EC95 3B4A 5292