BS ISO 21215:2018 pdf download

BS ISO 21215:2018 pdf download.Intelligent transport systems — Localized communications — ITS-M5
1 Scope
This document provides specifications of a communication interface (CI) named “ITS-M5”. The name “ITS-M5” indicates microwave frequency bands in the range of 5 GHz.
ITS-M5 CIs are based on the wireless LAN technology standardized at IEEE. This document specifies the additions to and deviations from IEEE Std 802.11™-2016 required to make ITS-M5 CIs compatible with the ITS station and communication architecture specified in ISO 21217.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
ISO/IEC 8825-2, Information technology — ASN.1 encoding rules: Specification of Packed Encoding Rules (PER)
ISO 21217, Intelligent Transport Systems — Communications access for land mobiles (CALM) — Architecture
ISO 21218, Intelligent Transport Systems — Hybrid communications — Access technology support
ETSI EN 301 893, 5 GHz RLAN; Harmonised Standard covering the essential requirements of article 3.2 of Directive 2014/53/EU
ETSI EN 302 571, Intelligent Transport Systems (ITS); Radiocommunications equipment operating in the 5 855 MHz to 5 925 MHz frequency band; Harmonised Standard covering the essential requirements of article
3.2 of Directive 2014/53/EU
IEEE Std 802™, IEEE Standard for Local and Metropolitan Area Networks: Overview and Architecture
IEEE Std 802.11™-2016, IEEE Standard for Information technology — Telecommunications and information exchange between systems — Local and metropolitan area networks — Specific requirements — Part 11:Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) specifications
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at https://www.electropedia.org/
— ISO Online browsing platform: available at https://www.iso.org/obp
3.1 EtherType
2-octet unsigned Integer number with allowed values ≥1 536 (0x06.00), assigned by the IEEE Registration Authority and used in data link layer frames, which identifies the protocol in the ITS networking & transport layer able to parse and process the ITS-NTPDU contained in the data
link layer frame
An ITS-M5 CI as specified in this document is an ITS wireless CI of CI class CIC-l1 for general simultaneous bi-directional communications with multiple peer-stations as specified in ISO 21218. An implementation may also be configured as an ITS wireless CI of CI class CIC-I3 (groupcast transmitter), and CI class CIC-I4 (receiver only). An ITS-M5 CI provides the functionality of the IN-SAP specified in ISO 21218, and uses the functionality of the MI-SAP, and the SI-SAP, as specified in ISO 24102-3 [6] . NOTE 1 Service primitive functions for the SI-SAP are not identified so far. NOTE 2 Multiple ITS-M5 CIs per ITS station unit (ITS-SU) are possible, regardless of whether the CIs belong to the same ITS-SCU or to different ITS-SCUs of the same ITS-SU; see ISO 21217 for the specifications of ITS-SU and ITS-SCU.