Aerial SDK Features for 5G gNB

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.

Highlights

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:
1. Dest MAC and VLAN ID
2. compression_bits
3. exponent_dl
4. decompression_bits
5. exponent_ul
6. max_amp_ul
7. section_3_time_offset
8. pusch_prb_stride
9. prach_prb_stride
10. fh_len_range
11. lower_guard_bw
12. gps_alpha (Shared across cells)
13. gps_beta (Shared across cells)
14. prachRootSequenceIndex
15. prachZeroCorrConf
16. numPrachFdOccasions
17. restrictedSetConfig
18. prachConfigIndex
19. 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:
1. 100MHz + 80MHz
2. 100MHz + 40MHz
3. 80MHz + 40MHz
4. 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

Capabilities

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

Procedures

Aerial SDK Overall Beam and Carrier Mobility

Feature	Configuration	Supported
Inter-gNB Handover	UE moves from 1 gNB to another gNB UL RRC transfer UE Context Modification Request/Response UE Context Release Serving and Target gNB cells can support different frequencies	N
Intra-DU Handover	Cell-level Mobility - UE establishes new connection to new carrier (inter-cell) supported by UE context modification procedure UE Context Modification Request/Response UE Context Release Serving and Target Cells can support different frequencies	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

Interfaces

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

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