RX sharing & Mixed Mode configs - Telecomunicaçoes

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Must standard 
Antenna Sharing:
RX sharing over two RUS-s single 
or mixed mode
Commercial in confidence | © Ericsson AB 2012 | 2012-05-15 | Page 2
GSM/WCDMA antenna sharing in 
Single Mode (MSSM) 
RBB11_1A
Note: special RX signal attenuation 
configuration for TMA support is 
required and is described in CPI
Commercial in confidence | © Ericsson AB 2012 | 2012-05-15 | Page 3
GSM/WCDMA antenna sharing 
in Mixed mode (MSMM) -
RBB22_4B
Commercial in confidence | © Ericsson AB 2012 | 2012-05-15 | Page 4
GSM/WCDMA 900 antenna sharing 
RX sharing over two RUS: single 
and mixed mode
example: GSM 3+3+4 + WCDMA 3x1 40W 
Mixed mode with RX sharing 
over two (R)RUS: 
RBB22_4B
Single mode with RX sharing 
over two (R)RUS: RBB11_1A
MIXED MODE IN 
MULTISTANDARD 
RBS
Commercial in confidence | © Ericsson AB 2012 | 2012-05-15 | Page 6
SINGLE AND 
MULTISTANDARD Rbs
Multistandard
Single Mode
(MSSM)
Mixed Mode in 
Multistandard RBS
(MSMM)
Single Standard
Radio standard A
Radio standard B
Radio standard C
Commercial in confidence | © Ericsson AB 2012 | 2012-05-15 | Page 7
MSR 
single mode
MSR
mixed mode
Capex and opex efficiency 
with mixed mode radio
› Benefits
– Increased utilization of Multistandard Radio Units (RUS)
– Reduced number of antennas
– Efficient traffic migration
Std A+BStd A Std B
Mixed Mode in 
Multistandard RBS
Multistandard, 
single mode
RUS RUS RUS
Commercial in confidence | © Ericsson AB 2012 | 2012-05-15 | Page 8
IDL1
DUW
DUW
Eth
DUG20
DUL
Eth
E1s
DUG20 E1s
S
I
U
GPS Out
GPS Out
MULTISTANDARD MIXED MODE
LIVE ON AIR
2100 MHz
3*2 WCDMA, 40 W/carrier
1800 MHz
3*1 LTE MIMO 10 MHz, 40 W
3*2 GSM, 20 W/TRX
900E MHz
3*1 WCDMA, 40W/carrier
3*2 GSM, 20W/TRX
RUS2100
RUS900E
RUS1800
S I U
D
U
G
D
U
W
D U W
D
U
L
RUS
RUS 01 80W
RUS RUS
ONE 
PIPE
DUG
Commercial in confidence | © Ericsson AB 2012 | 2012-05-15 | Page 9
overview
› Existing O&M applications re-used for O&M of Mixed Mode sites
› Separate OSS-RC per RAN or Common OSS-RC supported
› To handle two independent RANs, the RUS SW is made multi-client capable
Antenna
System
DUW
DUG
GPS Out
RUS
CPRI
OMT
BSC
RNC
RUS
RUS
Support System
EM
OSS-RC
Iub
Abis
Mub
NMS
Mu
Mur
NTP
Commercial in confidence | © Ericsson AB 2012 | 2012-05-15 | Page 10
msmm Radio Building Blocks 1(2)
› RBB12_2A (with 2 CPRI, used for 1 TX & 2 RX Diversity)
› RBB22_4B (with 4 CPRI and analog RX cross connect)
(R)RUS01 and RUS02
(R)RUS01 and RUS02
Commercial in confidence | © Ericsson AB 2012 | 2012-05-15 | Page 11
RBB 22_4B GSM+WCDMA
(R)RUS01
DUW
DUG
GPS Out
Synch
Ref RUS x2 B8
RUS x2 B8
RUS 01 B8 3*1-2 WCDMA Carriers
(pre-coder supported)
3*1-4 GSM TRX
RUS x2 B8
RUS x2 B8
RUS 01 B8
Commercial in confidence | © Ericsson AB 2012 | 2012-05-15 | Page 12
MSMM Radio Building Blocks 2(2)
› RBB22_2C (with 2 CPRI, used for 2 TX & 2 RX Diversity)
› RBB42_4A (with 4 CPRI and analog RX cross connect)
Data 2
Data 1 TX
RF A
RF B
RXA I/O
RXA Out
RXB I/ORX
TX A / RX A
TX B / RX B
1
RRUS11 and RRUS12
RBB22_2C
Data 1
RX
TX
RF A
RF B
RXA I/O
RXA Out
TX A / RX A
TX B 
1
RXB I/O
Data 2
Data 1
RX
TX
RF A
RF B
RXA I/O
RXA Out
TX C / RX C
TX D
2
RXB I/O
Data 2
/
RRUS11 and RRUS12
RBB42_4A