QORELYN NR PHY Explorer

Interactive 5G NR PHY resource-grid explorer for FR1 and FR2-1. Drill from a 10 ms frame to subframe, slot, PRB and RE views; inspect standards-derived PDSCH DM-RS occupancy, PDCCH candidate math, MCS/TBS, and a simple throughput sensitivity model. Standards-derived calculations are clearly separated from schematic placement.

v1.7

Educational / engineering learning tool. Use results as a learning aid, not as a substitute for conformance, certification, or design validation. Some views are intentionally scoped, simplified, or schematic; always verify critical results against the applicable 3GPP release, the actual UE/network configuration, and trusted logs or validated test equipment.

Carrier configuration

3GPP table

Frequency range

Subcarrier spacing

Channel bandwidth

Preset

Active BWP / PDSCH

user-defined

BWP size (PRBs)

BWP start PRB

PDSCH start symbol

PDSCH symbols

PDSCH PRBs

PDSCH start PRB

Selected PRB for RE inspector

PDSCH DM-RS

spec-derived scope

Supported scope: PDSCH mapping Type A • DM-RS configuration Type 1 • basic single-symbol DM-RS. In Connected DL, rank 3/4 requires 2 CDM groups without data in this basic Type-1 scope. In Initial Access (DCI 1_0 / SI-RNTI), the tool forces the applicable baseline assumptions: Table 1/QPSK, one layer, dmrs-AdditionalPosition=pos2, and 2 CDM groups without data for allocations longer than 2 symbols.

Type-A position

Additional position

CDM groups w/o data

xOverhead (RE/PRB)

The resource-occupancy calculation is intentionally constrained to this supported scope and the standard l1=11 case. The LTE-CRS-to-match-around l1=12 exception, double-symbol DM-RS, configuration Type 2 and enhanced DM-RS multiplexing are not modeled. Unsupported combinations are rejected rather than approximated.

MCS / TBS

38.214-derived

PDSCH MCS table

MCS index

Layers

DL scheduling duty

BLER (%)

Measured goodput (Mbps, optional)

CORESET / Search Space

candidate + Type0 tools

Placement mode

CORESET RBs

Duration (symbols)

Start symbol helper

Start PRB (6-RB aligned)

frequencyDomainResources bitmap (6-RB groups; no rb-Offset modeled)

monitoringSymbolsWithinSlot (14 bits, leftmost = symbol 0)

Search space

Aggregation L

# candidates M

CORESET ID p (basic 0–11 scope)

RNTI (hex, used for USS hash)

Type0 CORESET0 table profile

controlResourceSetZero index

searchSpaceZero index

SSB common-RB anchor PRB

SSB index i

kSSB

Accuracy scope: Derived CORESET0 uses an explicit TS 38.213 Type0 table profile plus a user-supplied SSB common-RB anchor; full Point-A/GSCN-to-anchor derivation is not modeled. For pattern-1 profiles, searchSpaceZero derives the two Type0 monitoring slots and first symbol from Tables 13-11/13-12. Bitmap mode models the no-rb-Offset 6-RB grouping reference; rb-Offset/freqMonitorLocations and extended Release-16+ frequency-monitoring cases are outside scope. Normal CP is assumed.

Numerology

μ=1

Transmission BW config

273 PRB

MCS

—

TBS / scheduled PDSCH

—

Simple goodput model

—

duty × (1−BLER), not a HARQ scheduler simulation

Frame → SF0 → Slot0

Click a subframe to drill down.

BWPSSB (schematic)CORESET/PDCCHPDSCHDM-RS / CDM-reserved G0DM-RS / CDM-reserved G1

Selected PRB context

DM-RS CDM groups & port families

Type-1, single-symbol DM-RS scope. The port families shown are the eligible TS 38.211 group mappings; actual antenna-port assignment is signalled by the applicable DCI/RRC configuration.

RE occupancy → TBS input

xOverhead is included in the 38.214 N′RE calculation but is not assigned to specific cells in this visual grid.

PDCCH: CORESET → CCE → candidates

38.213-derived

Throughput sensitivity

TBS + simple model

Calculation trace

auditable inputs

Item	Value	Basis

Reference baseline: 3GPP TS 38.104 V19.5.0 §5.3.2; TS 38.211 V19.4.0 §7.4.1.1.2; TS 38.213 V19.4.0 §10.1 and Clause 13 Type0-PDCCH tables; TS 38.214 V19.4.0 §5.1.3.1–5.1.3.2; TS 38.331 SearchSpace/ControlResourceSet IEs. Standards-derived labels apply only to the implemented scope shown in the UI. Type-1 DM-RS CDM group/port-family visualization follows TS 38.211 Table 7.4.1.1.2-1; actual antenna-port assignment depends on signalling. Throughput bars are educational what-if models, not scheduler/conformance predictions. Verify critical results independently. Independent educational/engineering tool; not affiliated with or endorsed by 3GPP or ETSI.