cuPHY Features Overview#

This section provides an overview of supported features in cuPHY.

Supported Features#

Aerial CUDA-Accelerated RAN Layer 1#

Aerial CUDA-Accelerated RAN adheres to 3GPP Release 15 standard specifications to deliver the necessary Layer 1 capabilities for a gNB.

3GPP Release 15#

Aerail cuPHY adheres to 3GPP Release 15 standard specifications to deliver the following capabilities for gNB Layer 1.

Overall PHY capabilities include:

  • Error detection on the transport channel and indication to higher layers

  • FEC encoding/decoding of the transport channel

  • Hybrid ARQ soft-combining

  • Rate matching of the coded transport channel to physical channels

  • Mapping of the coded transport channel onto physical channels

  • Power weighting of physical channels

  • Modulation and demodulation of physical channels including:

    • Frequency and time synchronization

    • Radio characteristics measurements and indication to higher layers

    • Multiple Input Multiple Output (MIMO) antenna processing

    • Transmit Diversity (TX diversity)

    • Digital and Analog Beamforming

    • RF processing

PHY FH Interface#

Aerial CUDA-Accelerated RAN PHY Overall Capabilities#

Features

Configuration

Supported

Standard support

3GPP 5G NR Rel 15

P

Duplexing Mode

TDD

Y

Nawrrow Bandwidth (MHz)

30MHz, 40 MHz, 50MHz, 80 MHz

P

Channel Bandwidth (MHz)

100 MHz

Y

Subcarrier Spacing (kHz)

30khz

Y

Maximum Number of Subcarriers (Max number of RBs x Num of Subcarriers per RB) = 273 x 12

3276

Y

Downlink Waveform

CP-OFDM

Y

Uplink Waveform

CP-OFDM

Y

DFT-s-OFDM (for data and control)

Y

Configurable to DFT-s-OFDM (for data & Control)

Y

Number of Downlink SU-MIMO layers

Up to 4

Y

Number of Uplink SU-MIMO layers

1, 2

Y

Number of Tx physical antennas

1

N

2

Y

4

Y

8

N

64

Y

Number of Rx physical antennas

1

N

2

Y

4

Y

8

N

64

Y

Slot format

DDDSUUDDDD

S = 6:4:4 (DL: G: UL)

Y

Carrier Aggregation

Configurable component carriers

Y

Configurable BW Parts

Up to 4

Y

BBU-RRU split option

7.1

Y

7.2

Y

8

N

Maximum Downlink throughput per user (Mbps) 4T4R configuration

1870

Y

Maximum Uplink throughput per user (Mbps) 4T4R configuration

467

Y

TS 38.211 Numerologies, Physical Resources, Modulation, Sequence, Signal Generation#

Aerial CUDA-Accelerated RAN PHY Numerologies#

Feature

Configuration

Supported

Numerologies:Normal CP

μ=0:SCS=15kHz, 14symbol/slot, 10slot/frame, 1slot/subframe, Normal CP

N

μ=1:SCS=30kHz, 14symbol/slot, 20slot/frame, 2slot/subframe, Normal CP

Y

μ=2:SCS=60kHz, 14symbol/slot, 40slot/frame, 4slot/subframe, Normal CP

N

μ=3:SCS=120kHz, 14symbol/slot, 80slot/frame, 8slot/subframe, Normal CP

N

μ=4:SCS=240kHz, 14symbol/slot, 160slot/frame, 16slot/subframe, Normal CP

N

Numerologies:Extended CP

μ=2:SCS=60kHz, 12symbol/slot, 40slot/frame, 4slot/subframe, Extended CP

N

Aerial CUDA-Accelerated RAN Overall PHY Physical Resources#

Feature

Supported

Antenna Ports

Y

Resource Grid

Y

Resource Elements

Y

Resource Block

Y

Resource Block - Common Resource Block(CRB)

Y

Resource Block - Physical Resource Block(PRB)

Y

Resource Block - Virtual Resource Block (VRB)

Y

Bandwidth Part (BWP)

Dynamically adapt the carrier bandwidth and numerology in which a UE operates

A bandwidth part is a subset of contiguous common resource blocks for a given numerology μi in bandwidth part i on a given carrier.

A UE can be configured with up to four bandwidth parts in UL and DL

Y

Aerial CUDA-Accelerated RAN PHY Physical Resources – BWP#

Feature

Supported

Bandwidth Part (BWP)

Dynamically adapt the carrier bandwidth and numerology in which a UE operates

A bandwidth part is a subset of contiguous common resource blocks for a given numerology μi in bandwidth part i on a given carrier

A UE can be configured with up to four bandwidth parts in both UL and DL

Y

Default Aerial CUDA-Accelerated RAN startup configuration to not use BWP, can be enabled to support BWP on a per carrier basis (while cell OOS)

N

Default Aerial CUDA-Accelerated RAN startup configuration to not use BWP, can be enabled to support BWP on a per carrier basis at startup

N

Aerial CUDA-Accelerated RAN Overall Carrier Aggregation#

Feature

Description

Supported (emulated)

Carrier Aggregation

Transmissions in multiple cells can be aggregated to support inter-band and intra-band configurations

Y

100MHz

Up to 2 cells aggregation(1CC,2CC)

Y

Up to 4 cells aggregation(1CC,2CC,3CC, 4CC)

Y

Narrowband Carrier Aggregation (ZMhz)

Configurable upto 4 component carriers

Y

Aerial CUDA-Accelerated RAN PHY Modulation Mapper#

Modulation Scheme

Supported

Pi/2 BPSK

Y

BPSK

Y

QPSK

Y

16QAM

Y

64QAM

Y

256QAM

Y

Aerial CUDA-Accelerated RAN PHY Sequence Generation#

Feature

Description

Supported

Sequence Generation

Pseudo-random sequence generation

Generic pseudo-random sequences are defined by a length-31 Gold sequence

Y

Low-PAPR sequence generation type 1

Y

Low-PAPR sequence generation type 2

Y

OFDM Baseband Signal Generation (UL DFT-S-OFDM)#

Feature

Configuration

Supported

Signal generation for all channels except PRACH & RIM-RS

RU support expected

PRACH

RU support expected

RIM-RS

RU support expected

Uplink waveform

Support concurrent UE configuration to use CP-OFDM or DFT-S-OFDM on same cell.

DFT-S-OFDM for UL.

Some specific parameters:

  • Support for PUSCH and for PUCCH format 3

  • Support 0.5 pi-BPSK for Modulation

  • Support DMRS group hopping

  • Support DMRS sequence hopping

Y

TS 38.211 Channels#

Aerial CUDA-Accelerated RAN Physical Overall Channels and Reference Signals#

Category

L1 requirement

Supported

Downlink Channels (TX )

PDSCH processing

Y

PDCCH processing

Y

PBCH processing

Y

Downlink signals (TX )

DMRS for PDSCH

Y

DMRS for PDCCH

Y

DMRS for PBCH

Y

PSS, SSS

Y

CSI-RS, TRS

Y

PT-RS

N

Downlink Physical Resources

Antenna ports starting with 1000 for PDSCH

Y

Antenna ports starting with 2000 for PDCCH

Y

Antenna ports starting with 3000 for channel-state information reference signals

Y

Antenna ports starting with 4000 for SS/PBCH block transmission

Y

Uplink Channels (RX )

PUSCH processing

Y

PUCCH processing

Y

PRACH processing

Y

Uplink signals (RX)

DMRS for PUSCH

Y

DMRS for PUCCH

Y

SRS

Y

PT-RS

N

Uplink physical Resources

Antenna ports starting with 0 for PUSCH and associated demodulation reference signals

Y

Antenna ports starting with 1000 for SRS

Y

Antenna ports starting with 2000 for PUCCH

Y

Antenna port 4000 for PRACH

Y

1-Capabilities-TSx211-6-3-3] Aerial CUDA-Accelerated RAN Overall Channel - PRACH(PHY Random Access Channel)#

Feature

Configuration

Supported

Format

A1

N

A2

N

A3

N

B1

N

B2

N

B3

N

B4

Y

C0

N

C2

N

0

N

1

N

2

N

3

N

Subcarrier Spacing (kHz)

1.25

N

5

N

15

N

30

Y

Sequence cyclic shift

Zadoff-Chu sequence

Y

Preamble length

839

N

139

Y

Number of PRACH occasions per TTI

4 FDM

Y

Contention based Random Access

Configurable non-contention based Random Access

N

Aerial CUDA-Accelerated RAN Overall PHY - UL Reference Signals#

PUSCH

Signal

Configuration

Supported

PUSCH DMRS sequence generation when transform precoding is disabled

Y

PUSCH DMRS sequence generation when transform precoding is enabled

Neither group, nor sequence hopping is enabled

Y

Group hopping is enabled and sequence hopping is disabled

Y

Sequence hopping is enabled and group hopping is disabled

Y

Demodulation reference signal for PUSCH Mapping to physical resources

DM-RS configuration type 1

Y

DM-RS configuration type 2

N

UL-DMRS-max-len=1

Y

UL-DMRS-max-len=2

Y

UL-DMRS-add-pos=0

Y

UL-DMRS-add-pos=1

Y

UL-DMRS-add-pos=2

Y

UL-DMRS-add-pos=3

Y

Phase-tracking reference signals for PUSCH Sequence generation

transform precoding is not enabled

N

transform precoding is enabled

N

Phase-tracking reference signals for PUSCH Mapping to physical resources

transform precoding is disabled

N

transform precoding is enabled

N

PUCCH

Signal

Configuration

Supported

Demodulation reference signal for PUCCH format 1

no intra-slot frequency hopping

Y

intra-slot frequency hopping enabled

Y

Demodulation reference signal for PUCCH format 2

Y

Demodulation reference signal for PUCCH format 3 (Format 4 not supported)

No additional DM-RS, No hopping

Y

No Additional DM-RS, hopping

Y

Additional DM-RS, No hopping

Y

Additional DM-RS, hopping

Y

SRS

Signal

Configuration

Supported

Sounding reference signal resource

Antenna ports=1, 1OFDM symbols

Y

Antenna ports=1, 2OFDM symbols

Y

Antenna ports=1, 4OFDM symbols

Y

Antenna ports=2, 1OFDM symbpls

Y

Antenna ports=2, 2OFDM symbols

Y

Antenna ports=2, 4OFDM symbols

Y

Antenna ports=4, 1OFDM symbpls

Y

Antenna ports=4, 2OFDM symbols

Y

Antenna ports=4, 4OFDM symbols

Y

Sounding reference signal Sequence generation

KTC=2

Y

KTC=4

Y

KTC=8

Y

Sounding reference signal Mapping to physical resources

CSRS=0~63

Y

Sounding reference signal slot configuration

Indicated by higher layer parameter SRS-Config

Y

PTRS

Signal

Configuration

Supported

PTRS

N

Aerial CUDA-Accelerated RAN Overall Channel - PDSCH(PHY DL Shared Channel)#

Feature

Configuration

Supported

Scrambling

Y

Modulation schemes

QPSK

Y

16 QAM

Y

64 QAM

Y

256 QAM

Y

Transmission Mode

4T4R SU-MIMO up to 4 layers

Y

64T64R MU-MIMO up to 16 layers

Y

Number of codewords

1

Y

2

N

Number of antenna ports

1000 - 1011

Y

Number of physical antennas

4

Y

64

Y

Beam Forming weights computation

BF m2

N

Precoding

non-codebook

Y

pre-coding weight

Y

Type I Single-Panel Codebook

N

Type I Multi-Panel Codebook

N

Type II Codebook

N

Type II Port Selection Codebook

N

PDSCH mapping type

Type A

Y

Type B

Y

Resource allocation type

Type 0 (4T4R only)

Y

Type 1

Y

VRB to PRB mapping Type

Non-interleaved

Y

Interleaved

N

PDSCH DMRS CDM groups without data

1

Y

2

Y

3

N/A

Number PDSCH users per TTI

16

Y

Power Control

PDSCH

Y

DMRS - PDSCH

Y

Aerial CUDA-Accelerated RAN Overall Channel - PDCCH (Physical DL Control Channel)#

Feature

Configuration

Supported

Scrambling

Up to 2 codewords

N

CORESET

Normal

Y

RMSI CORESET

Y

SSB - RMSI CORESET multiplexing pattern

Pattern 1

Y

Aggregation Level

1

Y

2

Y

4

Y

8

Y

16

Y

Modulation schemes

QPSK

Y

Layer mapping

Supported

Y

Antenna port mapping

Supported

Y

Mapping to virtual resource blocks

Supported

Y

Mapping from virtual to physical resource blocks

Non-interleaved VRB-to-PRB mapping

Y

Polar code

Block length up to 128 bits

Y

DMRS (Demodulation Reference Signal)

m-sequence

Y

CCE To REG Mapping Type

Non-interleaved

Y

Interleaved

Y

Number OFDM symbol of CORESET

1

Y

2

Y

3

Y

Power Control

PDCCH

Y

DMRS-PDCCH

Y

DCI format

0_0

NA

0_1

NA

1_0

NA

1_1

NA

2_x

NA

Precoding

Precoding Matrix Idx based precoding in the DU

Y

Aerial CUDA-Accelerated RAN Overall Channel - PBCH (Physical Broadcast Channel)#

Configuration

cuBB Tested

Precoding

Y

Scrambling

SS/PBCH block index Lmax=4

N

SS/PBCH block index Lmax=8

N

SS/PBCH block index Lmax=64

N

Modulation schemes

QPSK

Y

Mapping to Physical Resources

Y

DMRS Support

Support

Y

DMRS config type

Type 1

Y

Type 2

N

DMRS type A Pos

Pos2

Y

Pos3

Y

DMRS max length

1

Y

2

Y

DMRS Additional Position

Pos0

Y

Pos1

Y

Pos2

Y

Pos3

Y

Aerial CUDA-Accelerated RAN Overall - PHY DL Reference Signals#

PDSCH

Feature

Configuration

Supported

Demodulation reference signals for PDSCH Sequence generation

Y

Demodulation reference signals for PDSCH Mapping to physical resources

DM-RS configuration type 1

Y

DM-RS configuration type 2

N

DL-DMRS-max-len=1

Y

DL-DMRS-max-len=2

Y

DL-DMRS-add-pos=0

Y

DL-DMRS-add-pos=1

Y

DL-DMRS-add-pos=2

Y

DL-DMRS-add-pos=3

Y

Phase-tracking reference signals (PTRS) for PDSCH Mapping to physical resources

LPT-RS=1

N

LPT-RS=2

N

LPT-RS=4

N

PDCCH

Feature

Configuration

Supported

Demodulation reference signals for PDCCH Sequence generation

Y

Demodulation reference signals for PDCCH Mapping to physical resources

Y

PBCH

Feature

Configuration

Supported

Demodulation reference signals for PBCH Sequence generation

Y

Demodulation reference signals for PBCH Mapping to physical resources

Y

CSI reference signals

CSI reference signals

Zero-power

Y

non-zero-power

Y

CSI reference signals Sequence generation

nID equals the higher-layer parameter ScramblingID

Y

CSI reference signals Mapping to physical resources

Row 1: 1 port, Density = 3, CDMtype = No CDM

Y

Row 2: 1 port, Density = 1, 0.5, CDMtype = No CDM

Y

Row 3: 2 port, Density = 1, 0.5, CDMtype = FD-CDM2

Y

Row 4: 4 port, Density = 1, CDMtype = FD-CDM2

Y

Row 5: 4 port, Density = 1, CDMtype = FD-CDM2

Y

Row 6: 8 port, Density = 1, CDMtype = FD-CDM2

Y

Row 7: 8 port, Density = 1, CDMtype = FD-CDM2

Y

Row 8: 8 port, Density = 1, CDMtype = CDM4 (FD2, TD2)

Y

Row 9: 12 port, Density = 1, CDMtype = FD-CDM2

N

Row 10: 12 port, Density = 1, CDMtype = CDM4 (FD2, TD2)

N

Row 11: 16 port, Density = 1, 0.5, CDMtype = FD-CDM2

N

Row 12: 16 port, Density = 1, 0.5, CDMtype = CDM4 (FD2, TD2)

N

Row 13: 24 port, Density = 1, 0.5, CDMtype = FD-CDM2

N

Row 14: 24 port, Density = 1, 0.5, CDMtype = CDM4(FD2, TD2)

N

Row 15: 24 port, Density = 1, 0.5, CDMtype = CDM8(FD2, TD4)

N

Row 16: 32 port, Density = 1, 0.5, CDMtype = FD-CDM2

N

Row 17: 32 port, Density = 1, 0.5, CDMtype = CDM4(FD2, TD2)

N

Row 18: 32 port, Density = 1, 0.5, CDMtype = CDM8(FD2, TD4)

N

RIM

Feature

Configuration

Supported

RIM reference signal General

The first RIM-RS type can be used to convey information

N

The second RIM-RS type depends on configuration only

N

RIM reference signal Sequence generation

N

RIM reference signal Mapping to physical resources

N

RIM reference signal RIM-RS configuration

Enough Indication is disabled

N

Enough Indication is enabled

N

Positioning Reference

Positioning reference signal Sequence generation

N

Positioning reference signal Mapping to physical resources

LPRS = 2, Kcomb = 2

N

LPRS = 4, Kcomb = 2

N

LPRS = 6, Kcomb = 2

N

LPRS = 12, Kcomb = 2

N

LPRS = 4, Kcomb = 4

N

LPRS = 12, Kcomb = 4

N

LPRS = 6, Kcomb = 6

N

LPRS = 12, Kcomb = 6

N

LPRS = 12, Kcomb = 12

N

Synchronization Signals

Feature

Configuration

Supported

SSB numerology

30 kHz

Y

SSB precoding

supported

Y

SSB burst set configuration

2 SS blocks w/ single SSB burst set

Y

Synchronization signal generation

PSS generation and mapping to physical resources

Y

SSS generation and mapping to physical resources

Y

SS/PBCH block

Mapping of PSS within an SS/PBCH block

Y

Mapping of SSS within an SS/PBCH block

Y

Mapping of PBCH and DM-RS within an SS/PBCH block

Y

Time-frequency structure and time location of an SS/PBCH block

Y

TS 38.212 Multiplexing and Channel Coding#

Aerial CUDA-Accelerated RAN Overall Multiplexing and Channel Coding#

Feature

Configuration

Supported

General Procedures

CRC calculation

All CRC len supported

(6, 11, 16, 24)

Y

Code block segmentation and code block CRC attachment

  • Polar coding

  • Low density parity check coding

Y

Transport to physical channel mapping - UL

UL-SCH -> PUSCH

Y

RACH -> PRACH

Y

UCI -> PUCCH,PUSCH

Y

Transport to physical channel mapping - DL

DL-SCH -> PDSCH

Y

BCH -> PBCH

Y

PCH -> PDSCH

Y

DCI -> PDCCH

Y

Channel coding schemes

Polar coding

Y

Low density parity check coding (LDPC)

Y

Channel coding of small block lengths

Y

Rate matching

Rate matching for Polar code

Y

Rate matching for LDPC code

Y

Rate matching for channel coding of small block lengths

Y

Code block concatenation

sequentially concatenating the rate matching outputs for the different code blocks

  • LDPC

  • Polar Coding

Y

uplink transport channels and control information

Random access channel

Y

Uplink shared channel

  • LDPC graph selection

  • Rate Matching

  • Code block concatenation

  • Data & Control Mulitiplexing

Y

Uplink control information

  • Uplink control information on PUCCH

  • Uplink control information on PUSCH

Y

downlink transport channels and control information

Broadcast channel

Y

Downlink shared channel and paging channel

Y

Downlink control information

  • DCI formats

  • CRC attachment

  • Channel coding

Y

UCI multiplexing on PUCCH

support muxing mode as per 38.212 - 6.3.1.1

Y

TS 38.213 Physical Layer Procedures for Control#

Aerial CUDA-Accelerated RAN Overall - PHY Control Procedures#

UE procedures (Not applicable to base station)

Category

L1 requirement

Supported

Synchronization procedures

Cell search

NA

Transmission timing adjustments

NA

Timing for secondary cell activation / deactivation

NA

Radio link monitoring

SSB based

NA

CSI-RS based

NA

Link recovery procedures

radio link failure

NA

beam failure recovery

NA

Uplink power control

Physical uplink shared channel

NA

Physical uplink control channel

NA

Sounding reference signal

NA

Physical random access channel

NA

Power ramping counter suspention

NA

Dual connectivity

NA

Power headroom report

NA

PHY RACH

Category

L1 requirement

Supported

Type-1 random access procedure

Y

Type-2 random access procedure

N

UE procedures (Not applicable to base station)

Category

L1 requirement

Supported

HARQ-ACK codebook determination

CBG-based HARQ-ACK codebook determination

NA

Type-1 HARQ-ACK codebook determination in physical uplink control channel

NA

Type-1 HARQ-ACK codebook determination in physical uplink shared channel

NA

Type-2 HARQ-ACK codebook determination in physical uplink control channel

NA

Type-2 HARQ-ACK codebook determination in physical uplink shared channel

NA

Type-3 HARQ-ACK codebook determination

NA

UCI reporting on PUSCH

Category

L1 Requirement

Supported

Short block codes for UCI

Input: 1 - 11 bits output 32 bits

Y

Multiplexing of coded UCI bits to PUSCH

CSI part 1, support maximum 48 bit

Y

CSI part 1 and CSI part 2, support maximum 48 bit

Y

Decoding UCI on PUSCH with PUSCH data (UCI-ON-PUSCH scaling) 0.5/0.65/0.8/1

N

Decoding UCI on PUSCH without PUSCH data (UCI-ON-PUSCH scaling) 0.5/0.65/0.8/1

N

HARQ information length maximum 128

Y

Semi-static offset

N

Dynamic offset

N

UCI Reporting on PUCCH

Category

L1 Requirement

Supported

UCI reporting on PUCCH

PUCCH Resource Sets before RRC connection establishment

N

PUCCH Resource Sets for RRC connected UE

N

UE procedure for reporting multiple UCI types

N

PUCCH repetition procedure

N

UE Procedures (Not applicable to base station)

Category

L1 Requirement

Supported

UE procedure for determining physical downlink control channel assignment

Type0-PDCCH common search space

NA

Type0A-PDCCH common search space

NA

Type1-PDCCH common search space

NA

Type2-PDCCH common search space

NA

Type3-PDCCH common search space

NA

UE-specific search space

NA

UE Procedure for Receiving Control Information

Category

L1 Requirement

Supported

PDCCH validation for DL SPS and UL grant Type 2

NA

PDCCH validation for DL SPS and UL grant Type 2

NA

PDCCH monitoring indication and dormancy/non-dormancy behaviour for SCells

NA

Search space set group switching

NA

HARQ-ACK information for PUSCH transmissions

NA

UE-Group Common Signaling

Category

L1 Requirement

Supported

UE-group common signalling

Slot configuration

N

UE procedure for determining slot format

N

Interrupted transmission indication

N

Cancellation indication

N

Group TPC commands for PUCCH/PUSCH

N

SRS switching

N

Bandwidth Part Operation

Category

L1 Requirement

Supported

BWP

Configurable upto 4

Y

Set of resource blocks and slot symbols of CORESET for Type0-PDCCH search space set when {SS/PBCH block, PDCCH} SCS is {15, 15} kHz for frequency bands with minimum channel bandwidth 5 MHz or 10 MHz

N

Set of resource blocks and slot symbols of CORESET for Type0-PDCCH search space set when {SS/PBCH block, PDCCH} SCS is {15, 15} kHz for frequency bands operated with shared spectrum channel access

N

Set of resource blocks and slot symbols of CORESET for Type0-PDCCH search space set when {SS/PBCH block, PDCCH} SCS is {15, 30} kHz for frequency bands with minimum channel bandwidth 5 MHz or 10 MHz

N

Set of resource blocks and slot symbols of CORESET for Type0-PDCCH search space set when {SS/PBCH block, PDCCH} SCS is {30, 15} kHz for frequency bands with minimum channel bandwidth 5 MHz or 10 MHz

N

Set of resource blocks and slot symbols of CORESET for Type0-PDCCH search space set when {SS/PBCH block, PDCCH} SCS is {30, 30} kHz for frequency bands with minimum channel bandwidth 5 MHz or 10 MHz

N

Set of resource blocks and slot symbols of CORESET for Type0-PDCCH search space set when {SS/PBCH block, PDCCH} SCS is {30, 30} kHz for frequency bands operated with shared spectrum channel access

N

Set of resource blocks and slot symbols of CORESET for Type0-PDCCH search space set when {SS/PBCH block, PDCCH} SCS is {30, 15} kHz for frequency bands with minimum channel bandwidth 40MHz

N

Set of resource blocks and slot symbols of CORESET for Type0-PDCCH search space set when {SS/PBCH block, PDCCH} SCS is {30, 30} kHz for frequency bands with minimum channel bandwidth 40MHz

N

Set of resource blocks and slot symbols of CORESET for Type0-PDCCH search space set when {SS/PBCH block, PDCCH} SCS is {120, 60} kHz

N

Set of resource blocks and slot symbols of CORESET for Type0-PDCCH search space set when {SS/PBCH block, PDCCH} SCS is {120, 120} kHz

N

Set of resource blocks and slot symbols of CORESET for Type0-PDCCH search space set when {SS/PBCH block, PDCCH} SCS is {240, 60} kHz

N

Set of resource blocks and slot symbols of CORESET for Type0-PDCCH search space set when {SS/PBCH block, PDCCH} SCS is {240, 120} kHz

N

Parameters for PDCCH monitoring occasions for Type0-PDCCH CSS set - SS/PBCH block and CORESET Multiplexing pattern 1 and FR1

N

Parameters for PDCCH monitoring occasions for Type0-PDCCH CSS set - SS/PBCH block and CORESET Multiplexing pattern 1 and FR2

N

PDCCH monitoring occasions for Type0-PDCCH CSS set - SS/PBCH block and CORESET Multiplexing pattern 2 and {SS/PBCH block, PDCCH} SCS {120, 60} kHz

N

PDCCH monitoring occasions for Type0-PDCCH CSS set - SS/PBCH block andCORESET Multiplexing pattern 2 and {SS/PBCH block, PDCCH} SCS {240, 120} kHz

N

PDCCH monitoring occasions for Type0-PDCCH CSS set - SS/PBCH block and CORESET Multiplexing pattern 3 and {SS/PBCH block, PDCCH} SCS {120, 120} kHz

N

Integrated access-backhaul operation

N

Dual active protocol stack based handover

N

TS 38.214 Physical Layer Procedures for Data#

Aerial CUDA-Accelerated RAN Overall PHY Data Procedures#

Category

L1 Requirement

Supported

UL PUSCH Procedures

Transmission Scheme

Codebook-based

Y

Non-codebook-based

Y

Resource allocation

Type 0 (4T4R only)

N

Type 1

Y

Modulation order, redundancy version and transport block size determination

Y

Code block group based PUSCH transmission

N

MCS Table

Table64QAM

Y

Table256QAM

Y

Table64QAMLowSE

Y

PUSCH mapping type

Type A

Y

Type B

Y

CBG retranmission bitmap

Enable

N

Disable

Y

FH Interfaces#

Aerial CUDA-Accelerated RAN Overall 4T4R L1 - L2 Layer Interface Based on SCF FAPI#

Feature

Configuration (10.02)

Supported (Emulated)

SCF control interface must support the following messages

Config.request

4T4R

Y

Config.response

4T4R

Y

Start.request

4T4R

Y

Stop.request

4T4R

Y

Stop.indication

4T4R

Y

Error.indication

4T4R

Y

Param.request (cap query)

4T4R

Y

Param.response

4T4R

Y

SCF data interface includes the following messages

DL_TTI.request

4T4R

Y

UL_TTI.request

4T4R

Y

UL_DCI.request

4T4R

Y

SLOT errors

4T4R

Y

TX_Data.request

4T4R

Y

Rx_Data.indication

4T4R

Y

CRC.indication

4T4R

Y

UCI.indication

4T4R

Y

SRS.indication

4T4R

Y

RACH.indication

4T4R

Y

Aerial CUDA-Accelerated RAN Overall PHY FH Interface#

Feature

Description

Supported

IOT Profiles

Simultaneous support of TDD profile(s) and TDD pattern on single GPU

  • NR TDD IOT Profile 1: NR-TDD-FR1-CAT-A-NoBF

  • NR TDD IOT Profile 2: NR-TDD-FR1-CAT-A-DBF

Y

O-RAN CUS plane features with fronthaul 7.2-x split: [10][11]

Simultanous O-RU category support on same GPU/DU

  • CAT-A (precoding supported for PDCSH)

  • CAT-B

Y

Beamforming

  • Predefined beamID based beamforming

Y

IQ compression & bit-width

Simultaneous support for

  • Static-bit-width Fixed point IQ (14 bit)

  • BFP IQ Compression (9 bit)

Y

O-DU timing

  • Defined transport delay method

Y

Synchronization

  • G8275.1 (full timing support)

  • LLS-C3 with PTP + SyncE

Y

Transport features

  • eCPRI

  • Application layer fragmentation

  • QoS over fronthaul

Y

Section types

  • Section Type 1 (DL/UL channels)

  • Section Type 3 (PRACH)

  • Multiple sections within a single C-plane message

Y

Digital power scaling

  • UL gain correction

  • DL reference level adjustment

Y

Rx window monitoring,

Counters like

  • Data received too early

  • Data received too late

  • Data received on-time

Y

Scale

Support for upto 8 peak - 16 avg 100Mhz carriers

Y

Measurements#

Aerial CUDA-Accelerated RAN Overall PHY Measurements - 4T4R#

PUSCH measurements

Measurements

Supported Config

Supported cuBB Tested

RSS

4T4R

Y

RSRP

4T4R

Y

Pn+I pre-eq (Noise+Interference power)

4T4R

Y

Pn+I post-eq (Noise+Interference power)

4T4R

Y

SINR pre-eq

4T4R

Y

SINR post-eq

4T4R

Y

Timing Advance

4T4R

Y

PUCCH measurements

Measurements

Supported Config

Supported cuBB Tested

PUCCH Format 0

4T4R

Y

PF0 RSS

4T4R

Y

PF0 RSRP

4T4R

Y

PF0 Pn+i

4T4R

Y

PF0 timing advance

4T4R

Y

PUCCH Format 1

4T4R

Y

PF1 RSS

4T4R

Y

PF1 RSRP

4T4R

Y

PF1 Pn+i

4T4R

Y

PF1 timing advance

4T4R

Y

PUCCH Format 2

4T4R

Y

PF2 RSS

4T4R

Y

PF2 RSRP

4T4R

Y

PF2 Pn+i

4T4R

Y

PF2 timing advance

4T4R

Y

PUCCH Format 3

4T4R

Y

PF3 RSS

4T4R

Y

PF3 RSRP

4T4R

Y

PF3 Pn+i

4T4R

Y

PF3 timing advance

4T4R

Y

PUCCH Format 4

4T4R

N

PF4 RSS

4T4R

N

PF4 RSRP

4T4R

N

PF4 Pn+i

4T4R

N

PF4 timing advance

4T4R

N

PRACH measurements

Measurements

Supported Config

Supported cuBB Tested

Pn+i (Noise+Interference power)

4T4R

Y

Preamble signal strength

4T4R

Y

SRS measurements

Measurements

Supported Config

Supported cuBB Tested

SNR

4T4R

Y

Received signal strength

4T4R

Y

Timing advance

4T4R

Y

All channels measurements

Measurements

Supported Config

Supported cuBB Tested

Both pre-equalization and post-equalization across all channels should be configurable and supported

4T4R

N

TS 38.104 (base station radio Tx and Rx) Base Station (BS) Radio Transmission and Reception#

Aerial CUDA-Accelerated RAN Overall PHY Performance Conformance#

Feature

Configuration

Supported

PUSCH

PUSCH with transform precoding disabled

4T4R

Y

PUSCH with transform precoding enabled

4T4R

Y

UCI multiplexed on PUSCH

4T4R

Y

PUCCH

DTX to ACK probability

4T4R

N

Performance requirements for PUCCH format 0

4T4R

N

Performance requirements for PUCCH format 1

4T4R

N

Performance requirements for PUCCH format 2

4T4R

N

Performance requirements for PUCCH format 3

4T4R

N

Performance requirements for PUCCH format 4

4T4R

N

Performance requirements for multi-slot PUCCH

4T4R

N

PRACH

Performance requirements for PRACH

PRACH False alarm probability

N

PRACH detection requirements

N
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