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Huawei / Baseband Units & Processing Boards (BBU)

UBBPd6 Equipment information & support

RICEWIND Huawei UBBPd6 Multi-Mode Baseband Processing Board (6xCPRI 10.1G LTE/5G)

Equipment information

Brand
Huawei
Equipment model
UBBPd6
Equipment type
Baseband Units & Processing Boards (BBU)
Controller / software version
Confirm against the installed equipment
View full product specifications
RICEWIND Huawei UBBPd6 Multi-Mode Baseband Processing Board (6xCPRI 10.1G LTE/5G) - View 1

Information below comes from the current product catalogue. Confirm the controller, software version and configuration of the installed equipment separately.

BOARD ROLE
Multi-Mode Baseband Processing Unit (GSM / UMTS / LTE FDD/TDD / 5G NR)
CPRI PORTS
6 × CPRI/eCPRI SFP+ Optical Ports (Up to 10.1376 Gbps)
CARRIER CAPACITY
Supports 36 × LTE 20MHz Carriers or Mixed Scheduling
POWER CONSUMPTION
Typical 75W (Based on Bidirectional ASIC Hardware Acceleration)
SUBRACK SLOTS
Fully Compatible with BBU3900 / BBU3910 Slot 0 ~ Slot 5
OPERATING TEMP
-20°C ~ +55°C (Continuous Industrial Operation)

Alarms & troubleshooting

ALM-26233 (CPRI_INTERFACE_ERROR / Optical CPRI Link Loss of Signal)
Corresponding CPRI optical port LED solid red; RF antenna downlink transmission silent
Damaged feeder fiber between BBU and tower RRU, faulty 10.1G SFP+ module, or inverted TX/RX fiber polarity
1. Log into LMT/U2000 and run `DSP CPRISTAT` to inspect interface link rate and RRU negotiation; 2. Measure optical RX power with optical meter to ensure level is within nominal -2dBm to -14dBm window; 3. Swap 10.1G CPRI SFP+ transceiver and invert/re-seat LC patch cord duplex clips.
ALM-26201 (BOARD_HARDWARE_FAULT / Baseband Coprocessor Self-Test Failure)
RUN LED off, ALM LED solid red, board perpetually reboots in BBU subrack without loading cell configs
UBBPd6 baseband ASIC memory parity check failure, BBU backplane power pin misaligned, or FPGA microcode timeout
1. Send soft reset via command: `RST BRD: SN=0, SRX=slot`; 2. Inspect boot logs; if `BBP Core Parity Error` persists, wear ESD wrist strap and reseat ejector handles firmly; 3. If ALM LED remains red, migrate radio cells to redundant carrier board and arrange on-site board replacement.
ALM-26234 (CPRI_CLOCK_OUT_OF_SYNC / CPRI Air-Interface Frame Clock Loss of Lock)
Board ACT green, but radio cells experience dropped calls alongside clock re-acquisition alarms
GPS/BDS antenna loss of lock on main control board, 1588v2 jitter, or CPRI recovered clock wander
1. Execute `DSP CLKSRC` to verify reference clock status has not degraded to `Free-Running`; 2. Inspect GNSS lightning protector and measure feeder cable VSWR (< 1.5); 3. If using PTP 1588, calibrate packet network delay asymmetry offset to lock phase.

Access Complete Maintenance & Full Alarm Troubleshooting Manual

This page lists high-frequency critical alarm codes commonly encountered in field maintenance. Comprehensive manufacturer troubleshooting matrices, board-level repair guides, detailed electrical schematics, and firmware commissioning manuals are delivered alongside equipment upon formal project procurement, accompanied by dedicated FAE technical support.

Contact Account Manager for Full Manual

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