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TR 36.889RAN1
Feasibility Study on
Licensed-Assisted Access to Unlicensed Spectrum

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V13.0.0 (Wzip)  2015/07  87 p.

WI Acronym:  FS_LTE_LAA
Rapporteur:  Dr. Koorapaty, Havish

The purpose of this TR is to document the identified LTE enhancements and corresponding evaluations for a single global solution framework for licensed-assisted access to unlicensed spectrum. Dual connectivity and standalone access to unlicensed spectrum are not part of the study. Therefore, for LAA operation, a carrier in an unlicensed band cannot be configured as a PCell/PSCell in this Rel-13 study. This document:
  • addresses evaluation methodology and possible scenarios for LTE deployments, focusing on LTE Carrier Aggregation configurations;
  • documents the existing regulatory requirements for unlicensed spectrum deployment in the 5GHz bands;
  • identifies and defines design targets for coexistence with other unlicensed spectrum deployments, including fairness with respect to Wi-Fi and other LAA services;
  • identifies and captures coexistence evaluations of physical layer options and enhancements to LTE and, if necessary, LTE RAN protocols to meet the requirements and targets for unlicensed spectrum deployments;
  • contains an assessment of the feasibility of base station and terminal operation of 5GHz band (based on regulatory limits) in conjunction with relevant licensed frequency bands.

full Table of Contents for  TR 36.889  Word version:   13.0.0

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1  ScopeWord-p. 6
2  References
3  Definitions, symbols and abbreviationsWord-p. 8
4  Regulatory requirements
5  Spectrum considerations and LAA carrier aggregation feasibility studyWord-p. 34
6  Deployment scenarios for LAA
7  Design targets, functionalities and solutions for LAAWord-p. 37
8  Coexistence evaluationsWord-p. 51
9  ConclusionsWord-p. 73
A  Evaluation methodologyWord-p. 75
B  Evaluation results for co-channel coexistenceWord-p. 86
C  Change historyWord-p. 87

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