تقرير
Evolution of the 5G New Radio Two-Step Random Access towards 6G Unsourced MAC
| العنوان: | Evolution of the 5G New Radio Two-Step Random Access towards 6G Unsourced MAC |
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| المؤلفون: | Agostini, Patrick, Chamberland, Jean-Francois, Clazzer, Federico, Dommel, Johannes, Liva, Gianluigi, Munari, Andrea, Narayanan, Krishna, Polyanskiy, Yury, Stanczak, Slawomir, Utkovski, Zoran |
| سنة النشر: | 2024 |
| المجموعة: | Computer Science Mathematics |
| مصطلحات موضوعية: | Computer Science - Information Theory |
| الوصف: | This report summarizes some considerations on possible evolutions of grant-free random access in the next generation of the 3GPP wireless cellular standard. The analysis is carried out by mapping the problem to the recently-introduced unsourced multiple access channel (UMAC) setup. By doing so, the performance of existing solutions can be benchmarked with information-theoretic bounds, assessing the potential gains that can be achieved over legacy 3GPP schemes. The study focuses on the two-step random access (2SRA) protocol introduced by Release 16 of the 5G New Radio standard, investigating its applicability to support large MTC / IoT terminal populations in a grant-free fashion. The analysis shows that the existing 2SRA scheme may not succeed in providing energy-efficient support to large user populations. Modifications to the protocol are proposed that enable remarkable gains in both energy and spectral efficiency while retaining a strong resemblance to the legacy protocol. Comment: Version 1.0 of the report |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2405.03348 |
| رقم الأكسشن: | edsarx.2405.03348 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |