[srslte-users] USRP Antenna TX-Rx Power

[john wu]

Hi Cristian,
i did not see you mean srsran. it should have similar PAPR with OAI when have full traffic the PAPR will lower than the idle state.


www.zhixun-wireless.top<http://www.zhixun-wireless.top/>
provide SDR PA LNA duplexer

Best Regards

________________________________
From: openair5g-user-request at lists.eurecom.fr <openair5g-user-request at lists.eurecom.fr> on behalf of john wu <john.wu.8899 at hotmail.com>
Sent: Friday, June 4, 2021 8:09
To: Cristian Balint <cristian.balint at gmail.com>
Cc: openair5g-user <openair5g-user at lists.eurecom.fr>; srslte-users at lists.softwareradiosystems.com <srslte-users at lists.softwareradiosystems.com>; Charbel Lahoud <charbel.lahoud at etit.tu-chemnitz.de>
Subject: Re: [srslte-users] USRP Antenna TX-Rx Power

Hi Cristian,
it design for PAR 10db. so you can set back the output power to support 15db PAPR, for example use 5W output power with the 10W amplifier. actually the PAPR of OAI is not as high as 15db when it have full traffic.
what do you mean the rf path?


www.zhixun-wireless.top<http://www.zhixun-wireless.top/>
provide SDR PA LNA duplexer

Best Regards

________________________________
From: Cristian Balint <cristian.balint at gmail.com>
Sent: Thursday, June 3, 2021 18:41
To: john wu <john.wu.8899 at hotmail.com>
Cc: openair5g-user <openair5g-user at lists.eurecom.fr>; srslte-users at lists.softwareradiosystems.com <srslte-users at lists.softwareradiosystems.com>; Charbel Lahoud <charbel.lahoud at etit.tu-chemnitz.de>
Subject: Re: [srslte-users] USRP Antenna TX-Rx Power



On Thu, Jun 3, 2021 at 1:27 PM john wu <john.wu.8899 at hotmail.com<mailto:john.wu.8899 at hotmail.com>> wrote:
Hi Charbel,
we can provide amplifier. i guess you need 10W amplifier.

Hi John W. ,

* Can [1] withstand the actual PAPR of 15dB [2] or the minimum of 8dB in LTE ?
* What is the design architecture of the rf path, do you have a minimal diagram ?

[1] i.e http://www.zhixun-wireless.top/fdd-lte-pa-10w-with-lna-for-band1-band3
[2] https://github.com/srsran/srsRAN/pull/659



www.zhixun-wireless.top<http://www.zhixun-wireless.top/>
provide SDR PA LNA duplexer

Best Regards

________________________________
From: openair5g-user-request at lists.eurecom.fr<mailto:openair5g-user-request at lists.eurecom.fr> <openair5g-user-request at lists.eurecom.fr<mailto:openair5g-user-request at lists.eurecom.fr>> on behalf of Charbel Lahoud <charbel.lahoud at etit.tu-chemnitz.de<mailto:charbel.lahoud at etit.tu-chemnitz.de>>
Sent: Wednesday, June 2, 2021 22:03
To: openair5g-user <openair5g-user at lists.eurecom.fr<mailto:openair5g-user at lists.eurecom.fr>>; srslte-users at lists.softwareradiosystems.com<mailto:srslte-users at lists.softwareradiosystems.com> <srslte-users at lists.softwareradiosystems.com<mailto:srslte-users at lists.softwareradiosystems.com>>
Subject: USRP Antenna TX-Rx Power


Hi,

our project requires an LTE signal coverage range of 1 Km. at the moment, [1] antennas are used for Tx and Rx on USRP N321 achieving only a 100 meters coverage with licensed spectrum.

Any suggestions how to increase the antenna range ?

Are there any different antenna models? does a power amplifier is needed? And which kind of power amplifier for Tx and Rx?

Thanks in advance.



[1] MGRM-WHF - SMA-Anschluss | 1700-6000 MHz | Multiband | Antennen | Greenwave Electronics (greenwave-electronics.com)<https://www.greenwave-electronics.com/antennen/multiband/1700-6000-mhz/295/mgrm-whf-sma-anschluss>



Best regards

Charbel

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--
Balint Cristian
e-mail: cristian.balint at gmail.com<mailto:cristian.balint at gmail.com>
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