Aerial SDK Features for 5G gNB

Aerial SDK 23-4

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:

    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

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
  • UL RRC transfer
  • UE Context Modification Request/Response
  • UE Context Release
  • Serving and Target gNB cells can support different frequencies
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
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

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