H3C BBU5200 Baseband Unit-H3C

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H3C BBU5200 Baseband Unit

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H3C BBU5200 is a baseband processing unit newly developed driven by mobile communication network development. It can be deployed in an edge equipment room and offers in-depth customization, standard development, and standardization of telecom applications. It improves business agility and efficiency, and can meet the business requirements of multi-access edge computing (MEC).

The BBU5200 can be used with outdoor RRUs as the BBU for outdoor micro base stations. It can also serve as the BBU for indoor distributed wireless mobile communication systems, and can be used in scenarios including high traffic volume, indoor hotspot expansion, and coverage supplementation for blind spots. The BBU5200 is mainly responsible for cell management, system message broadcasting and updating, mobility management, wireless resource control and management, packet processing, baseband signal modulation and demodulation, management and monitoring of FSW and pRRU devices.

The BBU5200 supports both NR and LTE mode and enables integration of NR and LTE network modes on the base station side, sharing of site resources, and unified O & M, which meets the requirements of carriers for multiple network modes and allows evolution of a based station from a single network mode to multiple network modes.

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Features

LTE and NR dual network modes

The BBU5200 supports both NR andLTE network mode, and allows flexible configuration of the NR and LTE network modes, and enables integration and concurrent working of the two network modes. This product can implement co-location coverage for both LTE and NR networks.

Rich topologies

For outdoor scene: Per BBU can connect 4 RRUs.

For indoor scene: FSWs and pRRUs can be connected by using star topology. Each BBU can connect to a maximum of 32 pRRUs through FSWs.

Support for cell split and cell combination (RF combination and baseband combination)

In early deployment, the system combines the radio frequency units and BBUs in different cells to form a large cell. After combination, the cell edges become part of the cell center. This effect reduces interference and improves coverage.

This product supports forming a logical cell with multiple pRRUs under the same BBU. The BBU and FSW replicate and send the signal to all pRRUs within the same cell in the downlink direction. In the uplink direction, uplink RF combination or baseband combination is supported. For uplink RF combination, the FSW merges digital signals before sending them to the upper-level FSW or BBU. For baseband combination, each uplink signal is independently demodulated in the BBU before merging. For outdoor scenarios, all uplink RF data can be merged in the baseband.

During subsequent deployments, if there is an increased demand for capacity, cell split can be performed to enhance the overall throughput within the coverage area. Co-channel interference coordination technology can be used to solve interference issues at the cell edges.

Co-channel interference coordination

Interference is a critical challenge in networks with co-frequency deployment. In practical networks, some users, specifically at the cell edges, often experience very low Signal to Interference plus Noise Ratio (SINR). As a result, higher-order modulations cannot be used, and the advantages of 5G cannot be presented. This product supports Coordinated Multi-Point (CoMP) processing through baseband combination to enhance the performance at the cell edges. In addition, it uses appropriate power control and Interference Rejection Combining (IRC) algorithms to suppress and eliminate interference.

4G/5G RAN Sharing (MORAN and MOCN)

A set of base station equipment, multiple operators can deploy independent networks on it (up to 6 operators), and it supports PLMN-based network parameter configuration and optimization, as well as PLMN-based QoS and slicing services. RAN Sharing meet the requirement of multi-operator’s co-construction and sharing and reduce CAPEX and OPEX.

Networking slicing-based QoS and resource isolation

Network slicing transforms a network into a set of logical networks on top of shared infrastructure to meet diversified business requirements.

The BBU5200 supports service slice awareness. It can sense the service slice type based on the slice ID to provide differentiated QoS guarantee. If necessary, you can set the priority of a slice to absolutely high to ensure absolute priority scheduling of the service slice.

Slice-based resource isolation allows you to configure slice user groups to reserve radio resources for specific slices and for users of each slice based on PRB. The remaining resources (such as frequency flexible bandwidth) can be shared by other slice users, which can increase the flexibility of spectrum utilization while ensuring the QoS of slicing services.

Specification

Hardware specifications

Item	Specifications
Management port on the NR control and baseband unit	1, RJ-45
USB port (per MPU)	1, USB2.0
Console port on the NR control and baseband unit	1, RJ-45
GNSS port on the NR control and baseband unit	1
PPS/ToD port on the NR control and baseband unit	2
Backhaul port on the NR control and baseband unit	2 × SFP+, support for 1GE and 10GE transceiver modules
Fronthaul port on the NR control and baseband unit	4 × eCPRI, support for 10GE and 25GE transceiver modules
Power supply	2 × 780 W. Each BBU5200 supports two removable AC or DC power supplies. Available power supplies: 780W AC power supply and 780W DC power supply.
Fan tray	1, MCBE2FANC
Dimensions (H × W × D)	88 × 440 × 333 mm (3.46 × 17.32 × 13.11 in)
NR control and baseband module	1, MCBM1NBBPD1
LTE baseband module	1, MCBM1LBBPE0
Operating temperature	–5°C to +55°C (23°F to 131°F)
Storage temperature	–40°C to +70°C (–40°F to +158°F)
Operating temperature change	20°C (36°F) per hour
Storage temperature change	30°C (54°F) per hour
Operating relative humidity (noncondensing)	5% to 95%
Storage relative humidity (noncondensing)	5% to 95%
Operating altitude	–60 m to +5000 m (–196.85 to +16404.20 ft) The maximum temperature decreases by 0.33 °C (32.59°F) as the altitude increases by 100 m (328.08 ft) from 0 m (0 ft).
Storage altitude	–60 m to +5000 m (–196.85 to +16404.20 ft)

NR system capacities

Feature	Capacity
Users per TTI	8
Maximum cells	Four 2T2R cells each with 100-MHz bandwidth, or two 4T4R cells each with 100-MHz bandwidth.
Maximum connected users per cell	1200
Maximum active users per cell	400
Maximum bears per cell	400 × 3
Maximum bears per user	8
Maximum capacity per base station	4800 × 3
Maximum number of PDU sessions per base station	4800 × 3
Maximum number of QoS flows per base station	4800 × 3
Maximum SCTP connections	64
Maximum neighboring cells per cell	128
Topology	Indoor: For daisy chain topology and star topology: Supports direct star connection to a maximum of four FSWs and can connect to eight FSWs through a combination of star and daisy chain topologies. The baseband unit specification supports up to 32 pRRUs connected through FSW When pRRUs are powered through FSW by using hybrid fiber-optic power cables, the maximum extended distance is 200 m (656.17 ft). Outdoor: Star topology.

LTE system capacities

Feature	Capacity
Users per TTI	8
Maximum cells	1 2T2R cell. Each cell can support the baseband combination of up to four physical cells.
Maximum connected users per cell	400
Maximum active users per cell	400
Maximum bears per cell	400 × 3
Maximum bears per user	8
Maximum capacity per base station	400 × 3
Maximum number of X2 interfaces	32
Maximum number of S1 interfaces	32
Maximum neighboring cells per cell	16
Maximum number of neighbor cells per site	64
Networking	Indoor: For daisy chain topology and star topology: Supports direct star connection to a maximum of four FSWs and can connect to eight FSWs through a combination of star and daisy chain topologies. The baseband unit specification supports up to 32 pRRUs connected through FSW When pRRUs are powered through FSW by using hybrid fiber-optic power cables, the maximum extended distance is 200 m (656.17 ft). Outdoor: Star topology.

NR features

Item	Specifications
3GPP version	Rel-15
System bandwidth	100 MHz
Frame format	30 KHz subcarrier spacing 5 ms single periodicity (7D1S2U) 2.5 ms dual periodicity (3D1S1U 2D1S2U) 2.5 ms single periodicity (1D1S3U)
System parameters	Two BWPs CP-OFDM waveform on both uplinks and downlinks
Physical channels	SSB, PDCCH, and PDSCH downlink physical channels PRACH, PUCCH, and PUSCH uplink physical channels
Reference signal	Synchronization signal block Demodulation reference signal SRS CSI-RS
QoS	Non-GBR services GBR services Scheduling based on QoS parameters such as maximum bit rate (MBR), guaranteed bit rate (GBR), UE-AMBR, 5QI, and MFBR Allocation and retention priority (ARP)
Cell management	Cell establishment Cell release Cell reconfiguration Cell combination and splitting
Uplink MIMO transmission	2×2 SU-MIMO
Downlink MIMO transmission	2×2 SU-MIMO 4×4 SU-MIMO
Dynamic scheduling	Service-based QoS scheduling RR algorithm BSR reporting based on terminal caching status
Transmission mode	Codebook-based uplink transmission mode Downlink transmission based on PMI feedback
Wireless bearers	Signaling bearers: SRB0, SRB1, SRB2 Data bearers: AM DRB, UM DRB
HARQ	Incremental redundancy (IR) algorithm and at least four redundant versions 16 downlink HARQ processes and 16 uplink HARQ processes per user
Power management and assignment	Downlink power assignment and uplink power control Open loop power control (OLPC) Closed loop power control (CLPC) for PUSCH CLPC for PUCCH Power headroom reporting
Link adaptation	Link adaptation on uplinks: QPSK, 16QAM, 64QAM, 256QAM Link adaptation on downlinks: QPSK, 16QAM, 64QAM, 256QAM Automatic modulation code level adjustment based on channel quality
Random access	Contention-based random access Non-contention based random access
Base station synchronization	GPS BeiDou IEEE 1588v2
Measurement	A1, A2, A3, A4, B1, and B2 measurement control and reporting
RRC connection control	Establishment, reconfiguration, re-establishment, and release of RRC connections Establishment, reconfiguration, and release of data carriers
Paging	Core-side paging
Mobility	System message-based cell selection and reselection Intra-system intra-frequency switchover through the Xn interface Intra-system inter-frequency switchover through the NG interface Switching between 4G and 5G
Encryption and decryption	EEA0: NULL EEA1: SNOW3G EEA2: AES EEA3: ZUC
Integrity protection	EIA0: NULL EIA1: SNOW3G EIA2: AES EIA3: ZUC
Network slicing	Service slicing awareness based on slice IDs AMF selection based on slice IDs Radio-side resource isolation based on slice user groups, which means reserving radio resources for specific slices and for users of each slice based on PRB QoS differentiated guarantee in a slice
Networking	SA Option 2 Frame header offset configuration in a hybrid 4G and 5G network
Voice service	Voice service through EPS fallback
NG interface	NG interface protocols
Xn interface	Xn interface protocols
eCPRI interfaces	4 × eCPRI interfaces operating at 25 Gbps

LTE features

Item	Specifications
3GPP version	Rel-15
System bandwidth	5/10/15/20 MHz
Subcarrier spacing	15 KHz
Physical channels	Primary synchronization channel (P-SCH), secondary synchronization channel (S-SCH) All physical channels including PUSCH, PUCCH, PRACH, PDSCH, PHICH, PCFICH, PDCCH, PBCH, except eMBMS-related PMCH channels
Cell reference signal	port 0, port 1
QoS	Non-GBR services GBR services Scheduling based on QoS parameters such as maximum bit rate (MBR), guaranteed bit rate (GBR), UE-AMBR, 5QI, and MFBR Allocation and retention priority (ARP)
Cell management	Cell establishment Cell release Cell reconfiguration Cell combination and splitting
Uplink MIMO transmission	1×1 SU-MIMO
Downlink MIMO transmission	2×2 SU-MIMO
Dynamic scheduling	Service-based QoS scheduling RR algorithm BSR reporting based on terminal caching status Dynamic scheduling per TTI
Transmission mode	Two downlink port transmit diversity SFBC (mode 2) Two downlink port open loop spatial multiplexing (mode 3) Two downlink port closed loop spatial multiplexing (mode 4)
Wireless bearers	Signaling bearers: SRB0, SRB1, SRB2 Data bearers: AM DRB, UM DRB
HARQ	Uplink incremental redundancy (IR) algorithm and at least four redundant versions Downlink transmission of IR algorithms and at least four redundant versions Uplink synchronous adaptive and synchronous non-adaptive HARQ Downlink asynchronous adaptive HARQ 8 uplink processes and 8 downlink processes
Power management and assignment	Uplink power management: Closed loop power control (CLPC) for random access message 3 Open loop power control (OLPC) for PUSCH, PUCCH, and SRS CLPC for PUSCH, PUCCH, and SRS Power headroom reporting triggered periodically or by threshold-crossing events Downlink power management: Downlink power assignment for RS and PDSCH Downlink power assignment based on cell coverage
Coding and modulation	Channel coding such as convolutional codes and turbo codes Downlink modulation: BPSK, QPSK, 16QAM, 64QAM, 256QAM Uplink modulation: BPSK, QPSK, 16QAM, 64QAM
Link adaptation	Link adaptation on uplinks and downlinks Dynamic configuration of user transmission resources and transmission formats
Random access	Contention-based random access Non-contention based random access
Base station synchronization	GPS BeiDou IEEE 1588v2
Measurement	A1, A2, A3, A4, B1, and B2 measurement control and reporting
System information	RRC-sent system messages to request support for system messages MIB, SIB1, SIB2, SIB3, SIB4, and SIB5 RRC-sent system messages to request support for system message SIB24
RRC connection control	Establishment, reconfiguration, re-establishment, and release of RRC connections Establishment, reconfiguration, and release of data carriers
Paging	Core-side paging
Mobility	System message-based cell selection and reselection Intra-system intra-frequency switchover through the X2 interface Intra-system inter-frequency switchover through the S1 interface Switching between 4G and 5G
Encryption and decryption	EEA0: NULL EEA1: SNOW3G EEA2: AES EEA3: ZUC
Integrity protection	EIA0: NULL EIA1: SNOW3G EIA2: AES EIA3: ZUC
Networking	Frame header offset configuration in a hybrid 4G and 5G network
S1 interface	S1 interface protocols
X2 interface	X2 interface protocols
eCPRI interfaces	4 × eCPRI interfaces operating at 10 Gbps or 25 Gbps

Ordering Information

Chassis

Item	Description	Remarks
BBU5200	BBU5200 Baseband Unit	Required.
MCBM1NBBPD1	NR Main Control and Baseband Module	Required.
MCBM1LBBPE0	LTE baseband Module	Optional. (Used when 4G/5G dual-mode service is required.)

Fan trays

Item

Description

Remarks

MCBE2FANB

MCBE2FANB Fan Tray

Required. Shipped with the chassis.

The BBU5200 supports only this fan tray model.

Power modules

Item	Description	Remarks
PSR780-12A	780W AC Power Supply	Do not install AC and DC power supplies on the BBU5200.
PSR780-12D	780W DC Power Supply	Do not install AC and DC power supplies on the BBU5200.

Transceiver modules

Transceiver module type	Transceiver module name	Central wavelength	Connector type	Max transmission distance	Remarks
1G SFP transceiver module	SFP-GE-LX-SM1310-A	1310 nm	LC	10 km (6.21 miles)	Used for fronthaul ports
	SFP-GE-LX-SM1310-D	1310 nm		10 km (6.21 miles)
	SFP-GE-LX-SM1310-S	1310 nm		10 km (6.21 miles)
10G SFP+ transceiver module	SFP-XG-LX-SM1310	1310 nm	LC	10 km (6.21 miles)	Used for fronthaul and backhaul ports
	SFP-XG-LX-SM1310-D	1310 nm		10 km (6.21 miles)
	SFP-XG-LX-SM1310-S	1310 nm		10 km (6.21 miles)
	SFP-XG-CPRI-IR-SM1310	1310 nm		1.4 km (0.87 miles)
	SFP-XG-CPRI-LR-SM1310	1310 nm		10 km (6.21 miles)
25G SFP28 transceiver module	SFP-25G-LR-SM1310	1310 nm	LC	10 km (6.21 miles)	Used for fronthaul ports
25G SFP28 transceiver module	SFP-25G-LR-SM1310-I	1310 nm	LC	10 km (6.21 miles)	Used for fronthaul ports

Resources

Resource Center

Technical Documents

Software Download

H3C BBU5200 Baseband Unit

Rich topologies

Support for cell split and cell combination (RF combination and baseband combination)

Co-channel interference coordination

4G/5G RAN Sharing (MORAN and MOCN)

Networking slicing-based QoS and resource isolation

Hardware specifications

NR system capacities

LTE system capacities

NR features

LTE features

Chassis

Fan trays

Power modules

Transceiver modules

Resource Center

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