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Content for  TR 36.885  Word version:  14.0.0

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0  IntroductionWord‑p. 5

A study item, "Feasibility Study on LTE-based V2X Services", was approved at 3GPP TSG RAN #68 [2]. This study is to evaluate new functionalities needed to operate LTE-based V2X services defined in [3]. The objectives of the study include definition of an evaluation methodology and possible scenarios for vehicular services based on LTE, and identification and evaluation of necessary enhancements to LTE physical layer, RAN protocols, and interfaces. The results and findings of the study are documented in this technical report.
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1  ScopeWord‑p. 6

The present document contains the results and findings from the study item, "Feasibility Study on LTE-based V2X Services" [2]. The purpose of this TR is to document the identified LTE enhancements and corresponding evaluations for LTE-based V2X services defined in [3] as follows:
  • V2V (vehicle-to-vehicle): covering LTE-based communication between vehicles.
  • V2P (vehicle-to-pedestrian): covering LTE-based communication between a vehicle and a device carried by an individual (e.g. handheld terminal carried by a pedestrian, cyclist, driver or passenger).
  • V2I/N (vehicle-to-infrastructure/network): covering LTE-based communication between a vehicle and a roadside unit/network. A roadside unit (RSU) is a stationary infrastructure entity supporting V2X applications that can exchange messages with other entities supporting V2X applications. Note: RSU is a term frequently used in existing ITS specifications, and the reason for introducing the term in the 3GPP specifications is to make the documents easier to read for the ITS industry. RSU is a logical entity that combines V2X application logic with the functionality of an eNB (referred to as eNB-type RSU) or UE (referred to as UE-type RSU).
This document addresses LTE-based V2X both with and without LTE network coverage, and covers both the operating scenario where the carrier(s) is/are dedicated to LTE-based V2X services (subject to regional regulation and operator policy including the possibility of being shared by multiple operators) and the operating scenario where the carrier(s) is/are licensed spectrum and also used for normal LTE operation.
This technical report contains the evaluation methodology for LTE-based V2V, V2I/N and V2P services to compare the performance of different technical options.
This document identifies necessary enhancements to LTE for support of PC5 transport for V2V services.
This document captures identification and evaluation of Uu transport for V2V and PC5/Uu transport for V2I/N and V2P services.
This document is a 'living' document, i.e. it is permanently updated and presented to TSG-RAN meetings.
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