The 5G gNB capabilities, procedures, and interfaces have dependencies on Aerial SDK PHY Layer. The purpose of this section is to ensure that the Aerial SDK provides support for gNB capabilities, procedures, and interfaces.
PUCCH Format 1 I+N and SINR, DTX for UCI on PUSCH
Predefined BeamId support
Foxconn O-RU support
Cell life cycle management
4T4R TDD 7 beam support
8-port CSI-RS
Dynamic OAM supporting out-of-service updates:
Dest MAC and VLAN ID
compression_bits
exponent_dl
decompression_bits
exponent_ul
max_amp_ul
section_3_time_offset
pusch_prb_stride
prach_prb_stride
fh_len_range
lower_guard_bw
gps_alpha (Shared across cells)
gps_beta (Shared across cells)
prachRootSequenceIndex
prachZeroCorrConf
numPrachFdOccasions
restrictedSetConfig
prachConfigIndex
K1
Fronthaul Extension to 50km
Simultaneous fronthaul ports for higher fronthaul bandwidth
Multiple BandWidth Part (BWP) support
4T4R TDD bandwidth 10MHz, 30MHz, 40MHz, 50MHz and 80MHz
Carrier aggregation:
100MHz + 80MHz
100MHz + 40MHz
80MHz + 40MHz
100MHz + 80MHz + 40MHz
L1 startup time within 30sec
Support for multiple L2 on a single converged card
Cell-Id starts from 0 for all pods
Homogeneous Cell Lifecycle Mgmt - Cell State Mgmt (IS/OOS)
| Feature | Supported |
| Ability to support cell activation and de-activation. This is commonly refered to as taking a carrier OOS (Out of Service) and bringing it to IS (In Service) states | Y |
Aerial SDK Overall Beam and Carrier Mobility
| Feature | Configuration | Supported |
| Inter-gNB Handover | UE moves from 1 gNB to another gNB
|
N |
| Intra-DU Handover | Cell-level Mobility - UE establishes new connection to new carrier (inter-cell) supported by UE context modification procedure
|
N |
| Beam Mobility | UE establishes data path to new beam within carrier coverage (intra-cell) | No |
| Mobility at low speeds | Aerial SDK shall support pedestrian mobility by modeling the 3GPP channels and 38.104 requirements | N |
| Mobility at vehicular speeds | Aerial SDK shall support mobility at high vehicular speeds - upto 70mph (Doppler Shift = 400Hz) | N |
UL Power Control
| Feature | Description | Supported |
| Single UE Power Control | BS initiated power control for single UEs | Y |
| UE Group Power Control | BS initiated power control for UE groups | Y |
Carrier Aggregation
| Feature | Description | Supported |
| 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) intra-band contiguous | Y |
| Up to 2 cells aggregation(1CC,2CC) intra-band non-contiguous | Y | |
| Up to 4 cells aggregation(1CC,2CC,3CC,4CC) inter-band non contiguous | Y | |
| Narrowband Carrier Aggregation (ZMhz) | Configurable upto 4 component carriers | Y |
gNB Interfaces
| Interface | Supported |
| NG Interface (TS 38.410) | Y |
| Xn interface (TS 38.420) | N |
| F1 interface (TS 38.470) | N |
| E1 interface (TS 38.460) | N |
| Front Haul interface - ORAN 7.2 Split (CUS version 3) | Y |
| E2 interface | N |
| O1 interface | N |