UBBP A UBBP is a universal baseband processing unit and can be installed in a BBU3900 or BBU3910. The following figures show UBBP panels. NOTE: On the lower left corner of a board, there is a silkscreen indicating its type. Figure 1 UBBPd panel Specifications NOTE: A license is required to support board specifications. The following table lists the types of UBBP boards. Table 1 Types of UBBPd boards Board Applicable Mode UBBPd1 UBBPd2 GSM UMTS GU co-BBP UBBPd3 GSM UMTS LTE FDD GU co-BBP GL co-BBP
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UBBP
A UBBP is a universal baseband processing unit and can be installed in a BBU3900 or
BBU3910.
The following figures show UBBP panels.
NOTE:
On the lower left corner of a board, there is a silkscreen indicating its type.
Figure 1 UBBPd panel
Specifications
NOTE:
A license is required to support board specifications.
The following table lists the types of UBBP boards.
1R and 2R cells can be configured together in any forms. In hybrid configuration, the total number of cells cannot exceed the number of 2R cells supported by the eNodeB.
The UBBPd4/UBBPda does not support the hybrid configuration of 1R and 4R cells, or 2R and 4R cells.
The UBBPd5 supports hybrid configuration of 1R and 4R cells, or 2R and 4R cells. In hybrid configuration, a maximum of three cells are supported.
The UBBPd6 supports hybrid configuration of 1R and 4R cells, or 2R and 4R cells. In hybrid configuration, a maximum of three 1R/2R cells and three 4R cells are supported.
Table 5 Maximum number of UEs in RRC Connected mode supported by the UBBP board
Board Cell
Bandwidt
h
Datacard Traffic Model Smartphone Traffic
Model
Maximu
m
Number
of UEs in
RRC
Connecte
d Mode
Maximum
Number of
Uplink
Synchronize
d UEs
Maximu
m
Number
of UEs in
RRC
Connecte
d Mode
Maximum
Number of
Uplink
Synchronize
d UEs
UBBPd3/UBBPd4 1.4 MHz 504 504 504 504
3 MHz 1080 1080 1080 1080
5 MHz 1800 1800 1500 1500
10/15/20
MHz
3600 3600 1500 1500
UBBPd5/UBBPd6/UBBP
da
1.4 MHz 1008 1008 1008 1008
3 MHz 2160 2160 2160 2160
5/10/15/20
MHz
3600 3600 2200 2200
Table 6 Throughput
Board Maximum Downlink
Throughput (Mbit/s)
Maximum Uplink Throughput
(Mbit/s)
UBBPd3 450 225
UBBPd4 600 225
UBBPd5 or UBBPda 600 300
UBBPd6 900 450
Table 7 Signaling specifications
Board Signaling Specifications (BHCA)a
UBBPd3/UBBPd4 270000
UBBPd5/UBBPd6/UBBPda 396000
a: The BHCA specifications are based on the smart device traffic model.
The maximum number of data radio bearers (DRBs) supported by a UBBP is three times the maximum
number of UEs in RRC connected mode based on the datacard traffic model.
Specifications of UBBP boards working in LTE TDD mode
Table 8, Table 9, Table 10, and Table 11 list the specifications of cells, maximum number of UEs in RRC
connected mode, maximum uplink and downlink throughput, and signaling specifications supported by
UBBP boards working in LTE TDD mode, respectively.
Table 8 Cell specifications of a UBBP
Board Number of Cells Cell Bandwidth
(MHz)
Antenna
Configuration
UBBPd4 3 5/10/15/20 3x20 MHz 2T2R
3x20 MHz 4T4R
UBBPd6 6 5/10/15/20 6x20 MHz 2T2R
6x20 MHz 4T4R
UBBPd9 3 10/15/20 3x20 MHz 8T8R
Table 9 Maximum number of UEs in RRC Connected mode supported by the UBBP board