In recent years, Chinese government has issue a series of policies to encourage autonomous driving research. Autonomous driving technology has made significant progress and the market scale has expanded rapidly. The high-speed, low-latency, high-reliability and security network is an important support for autonomous driving. Jaguar Wave, together with Beijing Smart City Network Co., Ltd., has set up the mmWave wireless network to replace the wired network at the intersection of Kegu 3rd Street and Jinghui East Road in Beijing Economic and Technological Development Zone, and verified the feasibility and reliability of accessing Ultra-High-Speed Mobile Communication System, transmitting road monitoring data and broadcast data of future autonomous vehicles based on mmWave wireless network.
Challenge
In order to avoid the time and cost issues caused by digging, it is necessary to build the wireless network at the intersection to access Ultra-High-Speed Mobile Communication System. The wireless network needs to meet the bandwidth requirements of intersection camera data and future autonomous vehicles broadcast data transmission. The wireless bandwidth must reach 1.8Gbps, and the stability and security of wireless transmission must be guaranteed while satisfying high-speed backhaul.
Solution
The mmWave can provide the large bandwidth required for transmission and achieve high-speed data backhaul. Through site survey, we installed mmWave devices on the three light poles at the intersection of Kegu 3rd Street and Jinghui East Road to establish the mmWave wireless network in a point-to-point manner.
As the gathering pole, the south side light pole (pole #8) was installed two mmWave devices, and one device was installed on each of the north side pole and east side light pole(pole #4 & pole #6), which were aligned with the two devices on pole #8. After establishing the wireless connection, the wireless network can be provided for Ultra-High-Speed Mobile Communication System connected to pole #4 and the pole #6. Ultra-High-Speed Mobile Communication System data can be transmitted to pole #8 through the mmWave network, and then transmitted to the computer room through the OCC which connected to the pole #8.
Results
Ultra-High-Speed Mobile Communication System was running in normal state after accessed to mmWave network. The wireless transmission rate of the mmWave network reached 1.8Gbps, which fully met the bandwidth requirements of providing wireless network for Ultra-High-Speed Mobile Communication System, and transmitting the data of camera and broadcast.
The wireless network established by the mmWave device can realize network self-management without going through the operator, which is flexible and convenient.
The unique mmWave frequency band of Jaguar Wave mmWave device is not interfered by other wireless frequency bands, forming network isolation and ensuring the security of information.
The wireless installation method can greatly reduce the amount of municipal engineering such as digging and cable-laying, saving labor, materials and maintenance costs.
The high bandwidth, low latency, and anti-interference characteristics of mmWave can provide the reliable network for autonomous driving, making the data transmission fast and accurate. The mmWave network is flexible, and can be used with software management platforms to achieve interconnection, which makes vehicle infrastructure cooperation intelligent and efficient.
