5G NR Time Alignment at PHY
This page explains the PHY topic area for Time Alignment at PHY and keeps its place in the Release 18 PHY library. It is linked from the PHY hub so the topic structure stays complete while the full reference page expands.
Use this entry as the starting point for time alignment at phy and open the related pages below for the most immediate surrounding context in PHY.
| Technology | 5G NR |
|---|---|
| Area | PHY - Timing |
| Release | Release 18 |
| Main specs | 3GPP TS 38.213 |
| Main focus | Uplink timing alignment and how PHY timing supports stable transmission. |
| Related hub | 5G NR PHY Overview |
Overview
Time Alignment at PHY belongs to the broader PHY topic set covered by the Release 18 specification baseline. It matters because uplink timing alignment and how phy timing supports stable transmission. This page will expand into a full reference entry so the main website carries the usable explanation directly.
Scope
The completed page will cover definition, where the topic fits in PHY, main behavior, related procedures, practical reading notes, troubleshooting value, and links to the nearest channels, signals, and control areas.
- Read it together with the main PHY overview.
- PRACH - Access timing and uplink alignment are closely connected.
- TDD UL/DL Configuration - Timing alignment is easier to read against slot-direction timing.
- MAC Timing Advance - PHY timing and MAC timing-advance reading should be paired.
References
- 3GPP TS 38.213 - NR physical-layer procedures for control
FAQ
Why does this page exist already if the full topic is still growing?
The PHY library works better when the main structure is visible early. This page keeps the topic connected to the rest of the PHY section while the full reference coverage is added.
Where should I go next for usable detail right now?
Start with 5G NR PHY Overview and then open the related pages listed above.