wpj428/README.md

51 lines
2.6 KiB
Markdown
Raw Normal View History

2021-03-22 08:25:31 +00:00
WPJ428 + SIMCOM 8202G
=====================
2021-04-17 16:16:30 +00:00
<div style="margin:auto">
<img src="img/boitier-v2.jpg" style="max-width: 600px"/>
</div>
2021-04-18 09:17:50 +00:00
**We see this project as a way to assess how well we can regain control/understanding on our NR5G/LTE routers.**
*And for now the answer seems to be "very little"*.
Our case study is a NR5G router as the main Internet access point in a place where we have no signal on our cellphones.
2021-04-18 10:12:41 +00:00
Thus, we need external antennas that are put in the roof.
Additionnaly, we want to maximizme the throughput (both RX and TX) and minimize latency while keeping a stable connection over time.
2021-03-22 08:25:31 +00:00
2021-04-17 16:13:48 +00:00
Our project is currently made of the following physical parts:
2021-04-17 18:06:15 +00:00
- A custom made case that is 3D printed - [Download files](./3D_model)
- A Compex WPJ428 board - [wi-cat.ru](https://wikidevi.wi-cat.ru/Compex_WPJ428)
- A Simcom 8202G modema - [official site](https://www.simcom.com/product/SIM8202GM2.html)
2021-04-18 11:08:24 +00:00
- Connector: M.2 key B -> PCI Express x2, S-ATA, USB 2.0/3.0 (with HSIC/SSIC), I2C or Audio
2021-04-17 16:13:48 +00:00
- Some antennas, the setup is not definitive yet
2021-04-17 19:26:04 +00:00
- Log-Periodic Dipole Array (LPDA) Antenna - Directional antenna LTE 800/1800/2600 MHz, MIMO, SMA - [wimo](https://www.wimo.com/en/antennas/gsm-lte-mobile-phone-antennas/60072) - [diff between yagi and lpda](https://powerfulsignal.com/blog/whats-the-difference-between-an-lpda-antenna-and-a-yagi-antenna/)
2021-04-17 18:06:15 +00:00
- A cheap cross antenna - [amazon](https://www.amazon.fr/gp/product/B00BBKKULW/ref=ppx_yo_dt_b_asin_title_o04_s00)
- Some small wifi-like antenna - [wimo, similar but different](https://www.wimo.com/en/antennas/gsm-lte-mobile-phone-antennas/60022-sma)
2021-03-22 08:25:31 +00:00
2021-04-17 16:13:48 +00:00
We try to document our journey here:
2021-04-18 09:11:00 +00:00
- Guides
- [Our own OpenWRT image for the WPJ428](./doc/compile.md)
- [Flash OpenWRT on the WPJ428](./doc/flash.md)
- [Manually connect a modem to the network](./doc/manual-modem.md)
- [Our OpenWRT configuration](./doc/config.md)
2021-04-18 10:23:51 +00:00
- Developped scripts
2021-04-18 09:11:00 +00:00
- Problems we encountered
2021-04-18 09:17:50 +00:00
- Dimensions for the board in the datasheet are wrong
2021-04-18 09:11:00 +00:00
- Ethernet ports are not configured at boot
2021-04-18 09:17:50 +00:00
- Signal is not optimal with an antenna under the roof
2021-04-18 09:11:00 +00:00
- [The UDP+Don't Fragment bug](./doc/udp-df.md)
- [Tracking the bandwidth bottleneck](./doc/bottleneck.md)
2021-04-18 09:17:50 +00:00
- Our modem never connects on NR5G Non StandAlone (NSA) aka E-utran New radio Dual Connectivity (EN-DC)
2021-04-18 09:11:00 +00:00
- [Some logs/data/info about our hardware](./doc/logs.md)
2021-04-18 10:23:51 +00:00
- Experience Reports
- [Measurements next to the eNodeB](./doc/next_antenna.md)
2021-04-18 09:11:00 +00:00
- Misc
2021-04-18 10:15:17 +00:00
- [Our prototype: the TP-Link TL-WDR 3600 + Huawei e3372h](./doc/proto.md)
2021-04-18 09:11:00 +00:00
- [Bibliography](./doc/bib.md)
- [Some mostly useless hacks](./doc/hacks.md)
2021-03-22 08:39:44 +00:00
2021-03-22 08:25:31 +00:00
2021-03-22 08:39:44 +00:00