Global Availability of 5GHz Spectrum for Automotive Use
This document discusses the availability of 5GHz spectrum worldwide for automotive applications, focusing on outdoor use cases. It covers the benefits of 5GHz spectrum, challenges in regulatory harmonization, complexities in product certification, and limitations related to DFS bands for vehicular use.
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May 2016 doc.: IEEE 802.19-16/0xxxr0 Global Availability of 5GHz Spectrum for Automotive Use Date: 2016-05-06 Authors: Name Jim Lansford Affiliations Qualcomm Address 100 Stirrup Circle Florissant, Colorado USA Phone +1 719 286 9277 email jlansfor@qti.qualcomm.c om Notice: This document has been prepared to assist IEEE 802.19. It is offered as a basis for discussion and is not binding on the contributing individual(s) or organization(s). The material in this document is subject to change in form and content after further study. The contributor(s) reserve(s) the right to add, amend or withdraw material contained herein. Submission Slide 1 Jim Lansford, Qualcomm
May 2016 doc.: IEEE 802.19-16/0xxxr0 Abstract Summary of 5GHz spectrum availability around the world for automotive use cases, which are typically considered outdoor. Submission Slide 2 Jim Lansford, Qualcomm
May 2016 doc.: IEEE 802.19-16/0xxxr0 Background 5GHz is important for automotive applications Provides adequate bandwidth for automotive use cases Less congested Doesn t interfere with Bluetooth, which is important for hands-free calling in vehicles Global regulations are not harmonized Makes product certification complex (homologation) Some bands are indoor only in certain countries Automotive use is typically considered outdoor DFS is difficult in automobiles Radar detection was developed with fixed access points in mind DFS bands not reliably available for vehicular use Submission Slide 3 Jim Lansford, Qualcomm
May 2016 doc.: IEEE 802.19-16/0xxxr0 Spectrum at a glance DFS China 5170 MHz 5330 MHz 5490 MHz 5710 MHz 5735 MHz 5835 MHz 108 120 124 128 153 157 161 165 100 104 132 136 140 149 112 116 IEEE channel # 20 MHz 40 MHz 80 MHz 36 40 44 48 52 56 60 64 US 160 MHz 5170 MHz 5330 MHz 5490 MHz 5710 MHz Europe Japan 120 124 128 132 136 140 100 104 108 112 116 IEEE channel # 20 MHz 40 MHz 80 MHz 48 52 56 60 64 36 40 44 SRD 160 MHz Submission Slide 4 Jim Lansford, Qualcomm
May 2016 doc.: IEEE 802.19-16/0xxxr0 5GHz spectrum (1/2) CHINA CHANNEL NUMBER FREQUENCY MHZ EUROPE (ETSI) NORTH AMERICA (FCC) JAPAN 36 40 44 48 52 5180 5200 5220 5240 5260 Indoors Indoors Indoors Indoors Indoors Indoors Indoors Indoors DFS / TPC DFS / TPC Indoors / DFS / TPC Indoors / DFS / TPC Indoors / DFS / TPC Indoors / DFS / TPC DFS / TPC DFS / TPC DFS / TPC DFS / TPC DFS / TPC DFS DFS / TPC 56 5280 DFS DFS / TPC DFS / TPC 60 5300 DFS DFS / TPC DFS / TPC 64 5320 DFS DFS / TPC No Access No Access No Access No Access No Access 100 104 108 112 116 5500 5520 5540 5560 5580 DFS DFS DFS DFS DFS DFS / TPC DFS / TPC DFS / TPC DFS / TPC DFS / TPC Submission Slide 5 Jim Lansford, Qualcomm
May 2016 doc.: IEEE 802.19-16/0xxxr0 5GHz spectrum (1/2) CHINA CHANNEL NUMBER FREQUENCY MHZ EUROPE (ETSI) NORTH AMERICA (FCC) JAPAN No Access No Access No Access No Access No Access No Access 120 124 128 132 136 140 149 153 157 161 165 5600 5620 5640 5660 5680 5700 5745 5765 5785 5805 5825 DFS / TPC DFS / TPC DFS / TPC DFS / TPC DFS / TPC DFS / TPC SRD SRD SRD SRD SRD No Access No Access No Access DFS DFS DFS DFS / TPC DFS / TPC DFS / TPC DFS / TPC DFS / TPC DFS / TPC No Access No Access No Access No Access No Access Submission Slide 6 Jim Lansford, Qualcomm
May 2016 doc.: IEEE 802.19-16/0xxxr0 Notes Note 1: there are additional regional variations for countries including Australia, Brazil, China, Israel, Korea, Singapore, South Africa, Turkey, etc. Additionally Japan has access to at least one channel below 5180 MHz. Note 2: DFS = Dynamic Frequency Selection; TPC = Transmit Power Control; SRD = Short Range Devices, 25 mW (+14dBm) max power. Note 3: Chinese regulations from https://mentor.ieee.org/802.11/dcn/13/11-13-0329-01- 00ac-updated-china-s-5ghz-spectrum-regulation.ppt Submission Slide 7 Jim Lansford, Qualcomm
May 2016 doc.: IEEE 802.19-16/0xxxr0 Summary No 5GHz spectrum is currently available for automotive use in Japan (without DFS) Regulations are under review New proposals may come to light later in 2016 but may not help WLAN in cars Europe only allows operation in 5.725-5.850 under the Short Range Device rules (25mW = 14dBm) This is adequate for most in-vehicle applications Not all mobile phones support this band Changes to regulations will almost certainly happen going into WRC-19 Submission Slide 8 Jim Lansford, Qualcomm
