Automotive WLAN Use Case Study in IEEE 802.11-24/1526r1 Document
Explore the Automotive WLAN use case study detailed in the IEEE 802.11-24/1526r1 document, focusing on Regional HD MAP scenarios for efficient data exchange between vehicles and WLAN APs. The study discusses the need for WLAN connectivity in automotive applications like remote diagnostics and HD mapping, emphasizing the role of local infrastructure in enhancing data accuracy and timeliness.
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September 2024 doc.: IEEE 802.11-24/1526r1 Automotive WLAN use case study Authors: Name Affiliation Address Phone Email Jing Ma Toyota Motor Corporation Otemachi Bldg. 6F, 1- 6-1 Otemachi, Chiyoda-ku, Tokyo, 100-0004, Japan jing_ma@toyota-tokyo.tech Jing Ma (Toyota)
September 2024 doc.: IEEE 802.11-24/1526r1 Abstract In the July meeting, IEEE 802.11 WG approved the creation of Automotive (AUTO) TIG to investigate[1]: Use cases, current and planned mechanisms in 802.11 for vehicle connectivity to external APs Gaps between requirements and standards for automotive connectivity to external APs Recommendations to address gaps An automotive use case study is discussed in this contribution 2 Jing Ma (Toyota)
September 2024 doc.: IEEE 802.11-24/1526r1 Background Automotive applications such as Reginal HD Map, remote diagnostics, will need WLAN to provide efficient local connectivity to transfer area of data traffic between vehicles and the cloud Core & network Local data exchange between vehicle and WLAN AP Remote Diagnostics Data center Reginal HD MAP 3 Jing Ma (Toyota)
September 2024 doc.: IEEE 802.11-24/1526r1 Use case : Regional HD MAP This use case focuses on the use of opportunistic Wi-Fi connectivity for vehicles either running or parked within a specific geographic region. The vehicle connects to local Wi-Fi access points (APs) to transmit environmental data and receive updated high-definition (HD) map information from the edge cloud. It can enhance the accuracy and timeliness of HD maps while utilizing local infrastructure for efficient data exchange. Actors: Vehicle, AP, Edge Cloud
September 2024 doc.: IEEE 802.11-24/1526r1 Use case : Regional HD MAP Assumed service level requirement Scenario 1: Assumed service level requirement 500m - 100 bytes/ object , - 50 objects detected in vehicle AP1 Access network (WLAN) Range Information requested/ generated [2] Urban area assumed uplink 16m/s Upload the detected info. 5000 objects updates Assumed downlink Download the updated map info. Look-ahead time 1s prior to entering the interested area 40kbps 4Mbps : Information usually included in HD map are road geometry (e.g. traffic lights, intersection), road furniture (e.g. street lights ), land markers, etc.
September 2024 doc.: IEEE 802.11-24/1526r1 Use case : Regional HD MAP Assumed service level requirement Scenario 2 Assumed service level requirement 500m - 100 bytes/ object, - 50 objects detected in vehicle AP1 Access network (WLAN) Range Information requested/ generated[2] Urban area assumed uplink 16m/s 5000 objects updates Assumed downlink Upload the detected info. Download the updated map info. Look-ahead time 5s 40kbps 0.34Mbps
September 2024 doc.: IEEE 802.11-24/1526r1 Use case : Regional HD MAP Requirements Fast & reliable connection setup - Optimize network scanning & selection - Simplify authentication & authentication procedure - Enhance the reliability of frame exchange for connection setup when vehicle in motion Connection setup Data transmission Access network (WLAN) AP1 AP2 16m/s Wi-Fi Fast & seamless AP handover AP1 AP2 scanning authentication association Seamless AP handover
September 2024 doc.: IEEE 802.11-24/1526r1 Summary An automotive use case study is discussed in this contribution We will continue to study the details regarding the requirements of connection setup, handover to support using the opportunistic Wi-Fi connectivity for automotive use case such as regional HD map update Jing Ma (Toyota)
September 2024 doc.: IEEE 802.11-24/1526r1 References [1] 11-24/415r1 Data offload using WLAN in connected vehicle case, March, 2024 [2] 5gaa-t-200111-tr-c-v2x-use-cases-and-service-level-requirements-vol-i-v3.0
