Test the world’s first 5g + c-v2x module without GNSS communication



Recently, the world’s first 5g module (5g + c-v2x) supporting PC5 communication without GNSS has been successfully launched in Allianz technology, which is based on Shanghai Hisilicon hib5000v.

According to Allianz technology, 5g + c-v2x module mainly focuses on digital scenes of road infrastructure such as RSU, intelligent signal, roadside camera and roadside intelligent station. It will start commercial verification in national highway and national intelligent network / vehicle road collaborative demonstration area, pilot area and test area. The successful offline and mass commercial use of the module will greatly enhance the pace of intelligent transportation construction.

Allianz technology has developed several packages based on 5g + c-v2x module, which more truly simulates the use scenarios for customers. With the help of Allianz technology designers, Xiaobian tests the parameters and performance of 5g + c-v2x module through GNSS use scenarios, non GNSS use scenarios, and simulated two vehicle tunnel crossing scenarios, so as to see what “excels” the module.

First of all, show the kit based on 5g + c-v2x module


亲测全球首款无GNSS通信5G+C-V2X模组

1. Development board

2. USB interface

3. Power supply

4. GNSS antenna

5. PC5 antenna

6.UART

7.5g-v2x module

Development board interface is rich, USB, UART, rgmii, SDIO, PCIe, RJ11, audio, power and other interfaces, to meet the needs of all walks of life

Only the body can not, but also the soul to support

——Customized software solution

In order to meet the definition needs of customers, Allianz technology provides three sets of software development solutions for customers to customize

1. Scheme 1: application development + its protocol stack integrated into MCU

2. Scheme 2: application development + its protocol stack integrated into 5g v2x module

3. Scheme 3: application development integrated into MCU + its protocol stack integrated into 5g v2x module

Interesting products have been assembled in place, take off!

——Physical networking diagram

2 pcs

2 development boards

Two 5g + c-v2x modules

2 GNSS antennas

Four PC5 antennas

2 power adapters


亲测全球首款无GNSS通信5G+C-V2X模组

Let’s look at a brief version of the network topology


亲测全球首款无GNSS通信5G+C-V2X模组

It’s a mule, it’s a horse, pull it out

——Real scene demonstration

In GNSS scenario, go all out without packet loss & amp; The time delay is less than 20ms


亲测全球首款无GNSS通信5G+C-V2X模组

1. A and B are put into the environment with GNSS and synchronized through GNSS

2. A simulates sending 1000 packets to B, observes packet loss, and verifies that there is no packet loss

3. A and B do loopback delay test, send 1000 packets, the maximum loopback delay is 34ms, the minimum loopback delay is 17ms (one-way delay is half of loopback delay)

No GNSS scenario, even in the area without GNSS coverage, the communication is normal & amp; The time delay is less than 20ms


亲测全球首款无GNSS通信5G+C-V2X模组

1. A and B unplug GNSS antenna, a self synchronizes, and sends synchronization signal at PC5 port. B completes synchronization with a after receiving PC5 synchronization signal sent by A

2. A simulates sending 1000 packets to B, observes packet loss, and verifies that the packet loss rate is 5.5% (no more than 6% according to the protocol)

3. A and B do loopback delay test and send 1000 packets. The verification results show that the maximum loopback delay is 34ms and the minimum loopback delay is 18ms

In addition to meeting the above static scene, it can also communicate normally in dynamic scene, that is, the scene with GNSS and without GNSS switching back and forth, so it is easy to handle. The following is the simulation of tunnel scene communication.

A and B simulation have not entered the tunnel yet, let’s synchronize through GNSS


亲测全球首款无GNSS通信5G+C-V2X模组

1. A and B are put into the environment with GNSS and synchronized through GNSS

2. A sends 3000 packets to B to observe packet loss. There is no packet loss during this period

A simulation into the tunnel, don’t worry, rely on B


亲测全球首款无GNSS通信5G+C-V2X模组

1. A unplug GNSS antenna, a synchronously depends on B, observe packet loss, and there is no packet loss during the period

A and B are simulated into the tunnel, and can be synchronized without GNSS


亲测全球首款无GNSS通信5G+C-V2X模组

1. B also unplugs GNSS antenna, a and B synchronize through PC5, observe packet loss, and verify that the packet loss rate is 5.4% (no more than 6% according to the protocol)

Car a is coming out, car B has something to rely on


亲测全球首款无GNSS通信5G+C-V2X模组

1. A is connected to GNSS antenna, and B depends on a for synchronization. Observe packet loss, and there is no packet loss during this period

2. Both a and B simulations come out, synchronized through GNSS


亲测全球首款无GNSS通信5G+C-V2X模组

1. B is also connected to GNSS antenna. A and B depend on GNSS synchronously to observe packet loss. There is no packet loss during this period

The advantages of 5g + c-v2x module are further verified by testing in these scenarios

Frequency band (Uu + PC5)

PC5:B47

LTE TDD& FDD mainstream band

5g: NR mainstream band

Speed: PC5: 30.7mbps

Provide flexible SDK combination to meet different development demands of customers

Security (secure startup, package integrity protection, secure storage)

Support GNSS synchronization

No GNSS synchronization is supported

Support UU + PC5 concurrency

Is there a lot of “excellence”? If you’re interested in the development board & amp; If you are interested in 5g-c-v2x module or have a need, you can communicate with Allianz designers.

 


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