Root selection for random access
US12167476B2 · kind B2 · utility
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Key dates
| Filing date | Jun 29, 2022 |
| Grant date | Dec 10, 2024 |
| Priority date | — |
| Expiry date | Jun 12, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W74/0833
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Techniques are described for selecting root pairs for Zadoff-Chu sequences for random access preamble and for signaling one or more values associated with the root pair to a user equipment (UE) by a base station. The described root pair selection methods for two-root physical random access channel (PRACH) preamble can enable the peak differences received at the UE from different frequency offsets (FOs) to be disjointed even considering error in UE side. The selection techniques can improve the performance of PRACH FO and time offset (TO) estimation.
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