In RAN #86 meeting, a new Rel-17 study item on NR coverage enhancements was approved [2]. The objective of this study item is to study potential coverage enhancement solutions for specific scenarios for both FR1 and FR2. The detailed objectives are as follows.

• The target scenarios and services include
  • Urban (outdoor gNB serving indoor UEs) scenario, and rural scenario (including extreme long distance rural scenario) for FR1
  • Indoor scenario (indoor gNB serving indoor UEs), and urban/suburban scenario (including outdoor gNB serving outdoor UEs and outdoor gNB serving indoor UEs) for FR2.
  • TDD and FDD for FR1.
  • VoIP and eMBB service for FR1.
  • eMBB service as first priority and VoIP as second priority for FR2.
  • LPWA services and scenarios are not included.
• Identify baseline coverage performance for both DL and UL for the above scenarios and services based on link-level simulation
  • UL channels (including PUSCH and PUCCH) are prioritized for FR1.
  • Both DL and UL channels for FR2.
• Identify the performance target for coverage enhancement, and study the potential solutions for coverage enhancements for the above scenarios and services
  • The target channels include at least PUSCH/PUCCH
  • Study enhanced solutions, e.g., time domain/frequency domain/DM-RS enhancement (including DM-RS-less transmissions)
  • Study the additional enhanced solutions for FR2 if any
  • Evaluate the performance of the potential solutions based on link level simulation.

The present document captures the results and findings from the study item "New SID on NR coverage enhancement" [2]. The purpose of this TR is to document the baseline coverage performance for both FR1 and FR2 considering the scenarios and services identified in [2], and to document the evaluation and findings of the potential enhancements for the identified scenarios and services. This activity involves the Radio Access work area of the 3GPP studies and has potential impacts both on the Mobile Equipment and Access Network of the 3GPP systems. This document is a 'living' document, i.e. it is permanently updated and presented to TSG-RAN meetings.

The following documents contain provisions which, through reference in this text, constitute provisions of the present document.

• References are either specific (identified by date of publication, edition number, version number, etc.) or non-specific.
• For a specific reference, subsequent revisions do not apply.
• For a non-specific reference, the latest version applies. In the case of a reference to a 3GPP document (including a GSM document), a non-specific reference implicitly refers to the latest version of that document in the same Release as the present document.