What is RBs and Allocation Types in 5G NR?

RBs and Allocation Types is a PHY topic in the 5G NR Release 18 reference library. This page exists as part of the main PHY topic structure and will expand the direct website coverage for this specific area.

Which specs are most relevant for RBs and Allocation Types?

RBs and Allocation Types is mainly tied to 3GPP TS 38.211, 3GPP TS 38.214 in the Release 18 PHY baseline.

Home / 5G / Protocols / PHY / RBs and Allocation Types

5G NR Resource Blocks and Resource Allocation Types

This page explains the PHY topic area for RBs and Allocation Types 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 rbs and allocation types and open the related pages below for the most immediate surrounding context in PHY.

Technology	5G NR
Area	PHY - Resource mapping
Release	Release 18
Main specs	3GPP TS 38.211, 3GPP TS 38.214
Main focus	Resource blocks, allocation schemes, and how transport is placed on the grid.
Related hub	5G NR PHY Overview

Overview

RBs and Allocation Types belongs to the broader PHY topic set covered by the Release 18 specification baseline. It matters because resource blocks, allocation schemes, and how transport is placed on the grid. 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.
OFDM - RB reading starts from the resource-grid model.
Transport Block Size and Resource Allocation - Allocation type and transport size are often read together.
PDSCH - Downlink shared-channel transport makes resource allocation visible.

Page	Why open it next
5G NR PHY Overview	Use the PHY hub as the main entry point for channels, signals, procedures, and related PHY topics.
OFDM	RB reading starts from the resource-grid model.
Transport Block Size and Resource Allocation	Allocation type and transport size are often read together.
PDSCH	Downlink shared-channel transport makes resource allocation visible.

References

3GPP TS 38.211 - NR physical channels and modulation
3GPP TS 38.214 - NR physical-layer procedures for data

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.