## J2735 Message Meaning
- [Link1](https://drive.google.com/file/d/1x-hTExC13em8q5P6BeGUR3rLHxrrht51/view?usp=sharing)
- [Link2](http://www.cie.org.tw/cms/JournalFiles/11106_chapter17.pdf)
- BSM (車子基本資訊）
- id
- position (latitude, longitude, elevation)
- speed
- CSR（交換車子之間基本資訊）
- requests (send unicast request to other vehicles)
- PVD (自己與其他車輛或RSU的連線狀態)
- startVector (RSU位置）
- vehicleType (本身車輛類型）
- snapshots (1~32台車輛連線）
- thePosition (其他車輛的位置及速度）
- RSA (路測資料警示）
- msgCnt (訊息數量）
- typeEvent (事件類型)

## Demo Scenario Design

- [Slide](https://docs.google.com/presentation/d/12Wt6OnFde9odlx7MwDqh4jmvzpS8F2O_GIa_FLB-XhA/edit?usp=sharing)
- Need V2R, R2R (? implementation
- Does J2735 supports R2X message types?

## Random Stuff
- Nobody implement multicast in C-V2X (No matter in LTE-V2X or NR-V2X).
- ns-3 only support broadcast in NR-V2X mode 2
- [Paper Link](https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=932067)
- [Cellular-V2X Technology Overview ](https://www.qualcomm.com/content/dam/qcomm-martech/dm-assets/documents/c-v2x_technology.pdf) (Structure diagram in Page.21)

## TODO

- Autoware ROS topic transform to J2735 type
- Autoware replanning
- Bridge has bug in humble version (first priority)
- Map fixing (Update autoware)
- tier4 map generate