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ZTE BIDDING DOCUMENT WORD TEMPLATEZTE Confidential Proprietary © 2011 ZTE Corporation. All rights reserved. I
ZTE UMTS OPEX Saving Features Description
Version Date Author Approved By Remarks
© 2011 ZTE Corporation. All rights reserved.
ZTE CONFIDENTIAL: This document contains proprietary information of ZTE and is not to be disclosed or used without the prior written permission of ZTE.
Due to update and improvement of ZTE products and technologies, information in this document is subjected to change without notice.
ZTE UMTS OPEX Saving Features Description
II © 2011 ZTE Corporation. All rights reserved. ZTE Confidential Proprietary
TABLE OF CONTENTS
1 OPEX Saving Features ................................................................................... 1 1.1 ZWF21-40-006 Dynamic Power Track .............................................................. 1 1.2 ZWF21-40-008 Multi-Carrier Dynamic Power Sharing ...................................... 2 1.3 ZWF21-40-023 AISG Interface ......................................................................... 4 1.4 ZWF21-42-001 Flexible Frequency Configuration ............................................. 6
2 Abbreviation .................................................................................................... 6
ZTE Confidential Proprietary © 2011 ZTE Corporation. All rights reserved. III
FIGURES
Figure 2-18 Electrical Tilt Antenna System ........................................................................... 5
TABLES
ZTE Confidential Proprietary © 2010 ZTE Corporation. All rights reserved. 1
1 OPEX Saving Features
Benefits
This feature is used to improve power amplifier (PA) efficiency, reduce OPEX of base
station and enhance equipment stability.
Description
The efficiency of PA is usually evaluated on the condition when output power is close to
the maximum value. However, the load of base station varies greatly with time. For
example, in the rush hours of daytime, transmitting power of base station is close to the
maximum to meet the traffic of telecommunication, and the efficiency of PA is the
highest. Late at night, the traffic will drop close to zero so the efficiency of PA is low. For
improving PA efficiency on the condition of low traffic in order to reduce the total power
consumption of base station, ZTE Node B equipment supports D-PT (Dynamic Power
Track) technology:
Track the transmitting power of antenna and map the output power of PA
Check the table with the output power of PA to find the drain voltage needed
Map the drain voltage to state machine of power module and then choose
appropriate output voltage of power module to meet traffic load
ZTE UMTS OPEX Saving Features Description
2 © 2011 ZTE Corporation. All rights reserved. ZTE Confidential Proprietary
Figure 1-1 PA Efficiency with D-PT Technology
As shown in 12, with D-PT technology, it is obvious that gain of
PA efficiency can be achieved to save operation cost and enhance equipment stability.
Introduced Version
Sharing
Benefits
This function, which is applicable to the situation of uneven load and fast change
between each carrier in multi-carrier instance, can increases utilization of power
amplifier and increase downlink capacity.
Description
5 10 15 20 25 30 35 40 45 50 55 5
10
15
20
25
30
35
ZTE Confidential Proprietary © 2010 ZTE Corporation. All rights reserved. 3
The principle of multi-carrier dynamic power sharing is described as follows. In dual-
carrier WCDMA system, the cell serving R99 has some remaining carrier power which
will be applied to HSDPA scheduling in another carrier. In this instance, the cell
throughput of another carrier will be increased to improve the system capacity. Power
shared ratio can be configured by OMC.
Multi-carrier dynamic power sharing includes two scenarios:
Scene a: R99+ (R99+DPA). In this instance, the DPA cells can use the
remaining sharing power from R99 cell;
Scene b: (R99+DPA) + (R99+DPA). In this instance, the DPA cells can use
the remaining sharing power with each other.
In order to implement the sharing between each scheduler, the logic entity of the super
DPA scheduler which is independent of the present DPA scheduler to distribute the
sharing power will be introduced. Node B will notify the maximum transmitting power of
the local cell and the local cell group, and the relationship between the local cell and the
local cell group to RNC by auditing response. According to the acquired information and
Node B measurement information, RNC will execute the power admission control to
Node B.
in the followings:
scheduler reports -1,0,1 respectively and the super scheduler distributes the
power according to the report.
During the distribution, the sum of three carriers’ power keeps unchanged.
Any distribution will always make the sum of three carriers’ power equal to the
initial value.
The power distribution principle is the same as the one of dual-carrier. The big
step of step_1 (1w) extracted by the carrier that reports -1 and the small step
of step _2 (0.5w) extracted by the carrier that reports 0 will be used for the
carrier that reports 1.
4 © 2011 ZTE Corporation. All rights reserved. ZTE Confidential Proprietary
Introduced Version
Benefits
This function supports adjusting the down tilt angle through the remote or local control
software. Compared with the traditional antenna system, it has many advantages:
Adjust the down tilt angle of the electrical tilt antenna without switching off the
power. Detect the down tilt angle real time.
High-accuracy tilt avoiding frequency interference and Tx interference.
The down tilt angle of the antenna can be adjusted remotely without operator.
Weather, time and Node B location have no affect on the tilt operation of the
antenna.
Description
This function is used to adjust the down tilt angle through the remote or local control
software. It is achieved through changing the phase of multi-element antenna array and
adjusting the field amplitudes of the vertical and horizontal vectors. The electrical tilt
antenna control unit is integrated into the Node B internal rack. The operator can adjust
and detect the down tilt angle of an antenna through the RET software in the remote O &
M center, and it is shown in Figure 1-2. The electrical tilt antenna is widely used in radio
coverage system. And compared with the traditional antenna system, it has many
advantages.
ZTE Confidential Proprietary © 2010 ZTE Corporation. All rights reserved. 5
Figure 1-2 Electrical Tilt Antenna System
O&M
Downtilt angle
unit integrated in Node B
Remote electrical tilt antenna allows the system to adjust the down tilt angle in
directional pattern without powering off. Therefore, the antenna can be detected and
adjusted in real time, regardless of weather, geographic environment, etc. Its step
precision in angle adjustment is high (0.1°). Thus the remote electrical tilt antenna can
be used to adjust the network precisely, shortening the network construction and
reducing the maintenance cost.
ZTE RAN equipment supports the main functions of Electrical tilt antenna:
Equipped with standard AISG (Antenna Interface Standards Group) interfaces
Realize automatic angle adjustment of local antennae
Control automatic angle adjustment of remote antennae remotely
One RRU can control a maximum of three electrical tilt antennae to control the
motor
Perform configuration and network management through LMT or OMC
AISG has two protocol versions: ASIG1.1 and ASIG2.0. ASIG2.0 is written into 3GPP
R7, i.e., Iuant interface (electrical tilt antenna and tower amplifier standard control
interface). ZTE RAN equipment supports ASIG1.1 in V307R1, and ASIG2.0 in V408R1.
Introduced Version
6 © 2011 ZTE Corporation. All rights reserved. ZTE Confidential Proprietary
V307R1 supports AISG1.1.
1.4 ZWF21-42-001 Flexible Frequency Configuration
Benefits
In GU frequency refarming scene, operator can get more GSM frequency resource in
whole network.
ZTE RAN product support flexible frequency separation range configuration from
2.2MHz to 2.6MHz between GSM and UMTS system with algorithm optimization.
By means of smaller frequency separation configuration, operator can get more
frequency resource to deploy GSM whole network and improve frequency utilization,
and get more negative impacts on G/U network performance and KPI, especially to
UMTS uplink capacity in 2.2M frequency separation configuration even with carefully
network planning and optimization.
AAL ATM Adaptation Layer
ZTE Confidential Proprietary © 2010 ZTE Corporation. All rights reserved. 7
AAL2 ATM Adaptation Layer type 2
ABR Available Bit Rate
AICH Acquisition Indicator Channel Acquisition Indicator
Channel
AG Absolute Grant
ALCAP Access Link Control Application Protocol
AM Acknowledged Mode
AMR Adaptive Multi Rate
ANT Antenna
BBU Base Band Unit
BER Bit Error Ratio
BFD Bidirectional Forwarding Detection
BLER Block Error Ratio
BOOTP Bootstrap Protocol
BTS Base Transceiver Station
CAC Call Admission Control
CBC Cell Broadcast Center
CBE Cell Broadcast Entity
CBR Constant Bit Rate
CBS Cell Broadcast Service
8 © 2011 ZTE Corporation. All rights reserved. ZTE Confidential Proprietary
CC Chase Combining
DoS Denial of Service
DPCH Dedicated Physical Channel
DPT Dynamic Power Track
DRNC Drifting RNC
DTCH Dedicated Traffic Channel
DTM Dual Transfer Mode
DTX Discontinuous Transmission
EcN0 Received energy per chip divided by the power density in
the band
E-HICH E-DCH HARQ Acknowledgement Indicator Channel
E-DCH Enhanced Dedicated Channel
eNodeB E-UTRAN NodeB
ZTE Confidential Proprietary © 2010 ZTE Corporation. All rights reserved. 9
E-RGCH E-DCH Relative Grant Channel
ETWS Earthquake and Tsunami Warning System
E-UTRAN Evolved Universal Terrestrial Radio Access Network
E-VAM Evolved VAM
FE Fast Ethernet
GMGW Gated Media Gateway
GTP GPRS Tunneling Protocol
HCS Hierarchical Cell Structure
HLR Home Location Register
HS-DPCCH Dedicated Physical Control Channel (uplink) for HS-DSCH
HS-DSCH High Speed Downlink Shared Channel
HS-PDSCH High Speed Physical Downlink Shared Channel
HS-SCCH High Speed Physical Downlink Shared Control Channel
HSUPA High Speed Uplink Packet Access
IC Interference cancellation
IKE Internet Key Exchange
IMS IP Multimedia Subsystem
10 © 2011 ZTE Corporation. All rights reserved. ZTE Confidential Proprietary
IMSI International Mobile Subscriber Identity
IPOA IP over ATM
LCS Location Services
LMT Local Maintenance Terminal
LTE Long Term Evolution
MAC Medium Access
MBR Maximum Bit Rate
MCPPP Multi-Chasis PPP
MEP Maintenance End Point
MEG Maintenance Entity Group
MSTP Multi-Service Transfer Platform
MTP3B Message Transfer Part level 3
MTU Maximum Transfer Unit
MUD Multi User Detection
NACK Negative Acknowledgement
NAS Non-Access Stratum
ZTE Confidential Proprietary © 2010 ZTE Corporation. All rights reserved. 11
NBAP Node B Application Part
NBR Nominal Bit Rate
N-ISDN Narrowband Integrated Services Digital Network
NITZ Network Identity and Time Zone
NNSF Network Node Selection Function
NRI Network Resource Identifier
OMCR Operation and Maintenance Centre of RNC
OPEX Operating expenses
PA Power Amplifier
PCI Pre-coding Index
PICH Paging Indicator Channel
PIR Partial Incremental Redundancy
POS Packet over SONET/SDH
PPA Preferred Pool Area
PPD Partial Packet Discard
PS Packet Switched
PtM Point-to-Multipoint
RA Routing Area
12 © 2011 ZTE Corporation. All rights reserved. ZTE Confidential Proprietary
RAN Radio Access Network
RAT Radio Access Technology
RSCP Received Signal Code Power
RSEPS Received Scheduled E-DCH Power Share
RSU Radio Sector Unit
RTP Real Time Protocol
SA Service Area
SCCPCH Secondary Common Control Physical Channel
SCUDIF Service Change and UDI/RDI Fallback
SDH Synchronous Digital Hierarchy
SDP Session Description Protocol
SIB System Information Block
SIP Session Initiation Protocol
ZTE UMTS OPEX Saving Features Description
ZTE Confidential Proprietary © 2010 ZTE Corporation. All rights reserved. 13
SMS Short Message Service
SMS-CB SMS Cell Broadcast
SNA Shared Network Area
SONET Synchronous Optical Networking
SPI Schedule Priority Indicator
SRB Signalling Radio Bearer
SRNS Serving RNS
SSCF Service Specific Co-ordination Function
SSCOP Service Specific Connection Oriented Protocol
STM-1 Synchronous Transport Module Level 1
STTD Space Time Transmit Diversity
TB Transport Block
TC Traffic Class
THP Traffic Handling Priority
UDI Unrestricted Digital Information
URA User Registration Area
UTRAN UMTS Terrestrial Radio Access Network
VAM Virtual Antenna Mapping
VBR Variable Bit Rate
14 © 2011 ZTE Corporation. All rights reserved. ZTE Confidential Proprietary
VC Virtual Circuit
VoIP Voice over IP
WCDMA Wideband Code Division Multiple Access
WRR Weighted Round Robin
ZTE UMTS OPEX Saving Features Description
Version Date Author Approved By Remarks
© 2011 ZTE Corporation. All rights reserved.
ZTE CONFIDENTIAL: This document contains proprietary information of ZTE and is not to be disclosed or used without the prior written permission of ZTE.
Due to update and improvement of ZTE products and technologies, information in this document is subjected to change without notice.
ZTE UMTS OPEX Saving Features Description
II © 2011 ZTE Corporation. All rights reserved. ZTE Confidential Proprietary
TABLE OF CONTENTS
1 OPEX Saving Features ................................................................................... 1 1.1 ZWF21-40-006 Dynamic Power Track .............................................................. 1 1.2 ZWF21-40-008 Multi-Carrier Dynamic Power Sharing ...................................... 2 1.3 ZWF21-40-023 AISG Interface ......................................................................... 4 1.4 ZWF21-42-001 Flexible Frequency Configuration ............................................. 6
2 Abbreviation .................................................................................................... 6
ZTE Confidential Proprietary © 2011 ZTE Corporation. All rights reserved. III
FIGURES
Figure 2-18 Electrical Tilt Antenna System ........................................................................... 5
TABLES
ZTE Confidential Proprietary © 2010 ZTE Corporation. All rights reserved. 1
1 OPEX Saving Features
Benefits
This feature is used to improve power amplifier (PA) efficiency, reduce OPEX of base
station and enhance equipment stability.
Description
The efficiency of PA is usually evaluated on the condition when output power is close to
the maximum value. However, the load of base station varies greatly with time. For
example, in the rush hours of daytime, transmitting power of base station is close to the
maximum to meet the traffic of telecommunication, and the efficiency of PA is the
highest. Late at night, the traffic will drop close to zero so the efficiency of PA is low. For
improving PA efficiency on the condition of low traffic in order to reduce the total power
consumption of base station, ZTE Node B equipment supports D-PT (Dynamic Power
Track) technology:
Track the transmitting power of antenna and map the output power of PA
Check the table with the output power of PA to find the drain voltage needed
Map the drain voltage to state machine of power module and then choose
appropriate output voltage of power module to meet traffic load
ZTE UMTS OPEX Saving Features Description
2 © 2011 ZTE Corporation. All rights reserved. ZTE Confidential Proprietary
Figure 1-1 PA Efficiency with D-PT Technology
As shown in 12, with D-PT technology, it is obvious that gain of
PA efficiency can be achieved to save operation cost and enhance equipment stability.
Introduced Version
Sharing
Benefits
This function, which is applicable to the situation of uneven load and fast change
between each carrier in multi-carrier instance, can increases utilization of power
amplifier and increase downlink capacity.
Description
5 10 15 20 25 30 35 40 45 50 55 5
10
15
20
25
30
35
ZTE Confidential Proprietary © 2010 ZTE Corporation. All rights reserved. 3
The principle of multi-carrier dynamic power sharing is described as follows. In dual-
carrier WCDMA system, the cell serving R99 has some remaining carrier power which
will be applied to HSDPA scheduling in another carrier. In this instance, the cell
throughput of another carrier will be increased to improve the system capacity. Power
shared ratio can be configured by OMC.
Multi-carrier dynamic power sharing includes two scenarios:
Scene a: R99+ (R99+DPA). In this instance, the DPA cells can use the
remaining sharing power from R99 cell;
Scene b: (R99+DPA) + (R99+DPA). In this instance, the DPA cells can use
the remaining sharing power with each other.
In order to implement the sharing between each scheduler, the logic entity of the super
DPA scheduler which is independent of the present DPA scheduler to distribute the
sharing power will be introduced. Node B will notify the maximum transmitting power of
the local cell and the local cell group, and the relationship between the local cell and the
local cell group to RNC by auditing response. According to the acquired information and
Node B measurement information, RNC will execute the power admission control to
Node B.
in the followings:
scheduler reports -1,0,1 respectively and the super scheduler distributes the
power according to the report.
During the distribution, the sum of three carriers’ power keeps unchanged.
Any distribution will always make the sum of three carriers’ power equal to the
initial value.
The power distribution principle is the same as the one of dual-carrier. The big
step of step_1 (1w) extracted by the carrier that reports -1 and the small step
of step _2 (0.5w) extracted by the carrier that reports 0 will be used for the
carrier that reports 1.
4 © 2011 ZTE Corporation. All rights reserved. ZTE Confidential Proprietary
Introduced Version
Benefits
This function supports adjusting the down tilt angle through the remote or local control
software. Compared with the traditional antenna system, it has many advantages:
Adjust the down tilt angle of the electrical tilt antenna without switching off the
power. Detect the down tilt angle real time.
High-accuracy tilt avoiding frequency interference and Tx interference.
The down tilt angle of the antenna can be adjusted remotely without operator.
Weather, time and Node B location have no affect on the tilt operation of the
antenna.
Description
This function is used to adjust the down tilt angle through the remote or local control
software. It is achieved through changing the phase of multi-element antenna array and
adjusting the field amplitudes of the vertical and horizontal vectors. The electrical tilt
antenna control unit is integrated into the Node B internal rack. The operator can adjust
and detect the down tilt angle of an antenna through the RET software in the remote O &
M center, and it is shown in Figure 1-2. The electrical tilt antenna is widely used in radio
coverage system. And compared with the traditional antenna system, it has many
advantages.
ZTE Confidential Proprietary © 2010 ZTE Corporation. All rights reserved. 5
Figure 1-2 Electrical Tilt Antenna System
O&M
Downtilt angle
unit integrated in Node B
Remote electrical tilt antenna allows the system to adjust the down tilt angle in
directional pattern without powering off. Therefore, the antenna can be detected and
adjusted in real time, regardless of weather, geographic environment, etc. Its step
precision in angle adjustment is high (0.1°). Thus the remote electrical tilt antenna can
be used to adjust the network precisely, shortening the network construction and
reducing the maintenance cost.
ZTE RAN equipment supports the main functions of Electrical tilt antenna:
Equipped with standard AISG (Antenna Interface Standards Group) interfaces
Realize automatic angle adjustment of local antennae
Control automatic angle adjustment of remote antennae remotely
One RRU can control a maximum of three electrical tilt antennae to control the
motor
Perform configuration and network management through LMT or OMC
AISG has two protocol versions: ASIG1.1 and ASIG2.0. ASIG2.0 is written into 3GPP
R7, i.e., Iuant interface (electrical tilt antenna and tower amplifier standard control
interface). ZTE RAN equipment supports ASIG1.1 in V307R1, and ASIG2.0 in V408R1.
Introduced Version
6 © 2011 ZTE Corporation. All rights reserved. ZTE Confidential Proprietary
V307R1 supports AISG1.1.
1.4 ZWF21-42-001 Flexible Frequency Configuration
Benefits
In GU frequency refarming scene, operator can get more GSM frequency resource in
whole network.
ZTE RAN product support flexible frequency separation range configuration from
2.2MHz to 2.6MHz between GSM and UMTS system with algorithm optimization.
By means of smaller frequency separation configuration, operator can get more
frequency resource to deploy GSM whole network and improve frequency utilization,
and get more negative impacts on G/U network performance and KPI, especially to
UMTS uplink capacity in 2.2M frequency separation configuration even with carefully
network planning and optimization.
AAL ATM Adaptation Layer
ZTE Confidential Proprietary © 2010 ZTE Corporation. All rights reserved. 7
AAL2 ATM Adaptation Layer type 2
ABR Available Bit Rate
AICH Acquisition Indicator Channel Acquisition Indicator
Channel
AG Absolute Grant
ALCAP Access Link Control Application Protocol
AM Acknowledged Mode
AMR Adaptive Multi Rate
ANT Antenna
BBU Base Band Unit
BER Bit Error Ratio
BFD Bidirectional Forwarding Detection
BLER Block Error Ratio
BOOTP Bootstrap Protocol
BTS Base Transceiver Station
CAC Call Admission Control
CBC Cell Broadcast Center
CBE Cell Broadcast Entity
CBR Constant Bit Rate
CBS Cell Broadcast Service
8 © 2011 ZTE Corporation. All rights reserved. ZTE Confidential Proprietary
CC Chase Combining
DoS Denial of Service
DPCH Dedicated Physical Channel
DPT Dynamic Power Track
DRNC Drifting RNC
DTCH Dedicated Traffic Channel
DTM Dual Transfer Mode
DTX Discontinuous Transmission
EcN0 Received energy per chip divided by the power density in
the band
E-HICH E-DCH HARQ Acknowledgement Indicator Channel
E-DCH Enhanced Dedicated Channel
eNodeB E-UTRAN NodeB
ZTE Confidential Proprietary © 2010 ZTE Corporation. All rights reserved. 9
E-RGCH E-DCH Relative Grant Channel
ETWS Earthquake and Tsunami Warning System
E-UTRAN Evolved Universal Terrestrial Radio Access Network
E-VAM Evolved VAM
FE Fast Ethernet
GMGW Gated Media Gateway
GTP GPRS Tunneling Protocol
HCS Hierarchical Cell Structure
HLR Home Location Register
HS-DPCCH Dedicated Physical Control Channel (uplink) for HS-DSCH
HS-DSCH High Speed Downlink Shared Channel
HS-PDSCH High Speed Physical Downlink Shared Channel
HS-SCCH High Speed Physical Downlink Shared Control Channel
HSUPA High Speed Uplink Packet Access
IC Interference cancellation
IKE Internet Key Exchange
IMS IP Multimedia Subsystem
10 © 2011 ZTE Corporation. All rights reserved. ZTE Confidential Proprietary
IMSI International Mobile Subscriber Identity
IPOA IP over ATM
LCS Location Services
LMT Local Maintenance Terminal
LTE Long Term Evolution
MAC Medium Access
MBR Maximum Bit Rate
MCPPP Multi-Chasis PPP
MEP Maintenance End Point
MEG Maintenance Entity Group
MSTP Multi-Service Transfer Platform
MTP3B Message Transfer Part level 3
MTU Maximum Transfer Unit
MUD Multi User Detection
NACK Negative Acknowledgement
NAS Non-Access Stratum
ZTE Confidential Proprietary © 2010 ZTE Corporation. All rights reserved. 11
NBAP Node B Application Part
NBR Nominal Bit Rate
N-ISDN Narrowband Integrated Services Digital Network
NITZ Network Identity and Time Zone
NNSF Network Node Selection Function
NRI Network Resource Identifier
OMCR Operation and Maintenance Centre of RNC
OPEX Operating expenses
PA Power Amplifier
PCI Pre-coding Index
PICH Paging Indicator Channel
PIR Partial Incremental Redundancy
POS Packet over SONET/SDH
PPA Preferred Pool Area
PPD Partial Packet Discard
PS Packet Switched
PtM Point-to-Multipoint
RA Routing Area
12 © 2011 ZTE Corporation. All rights reserved. ZTE Confidential Proprietary
RAN Radio Access Network
RAT Radio Access Technology
RSCP Received Signal Code Power
RSEPS Received Scheduled E-DCH Power Share
RSU Radio Sector Unit
RTP Real Time Protocol
SA Service Area
SCCPCH Secondary Common Control Physical Channel
SCUDIF Service Change and UDI/RDI Fallback
SDH Synchronous Digital Hierarchy
SDP Session Description Protocol
SIB System Information Block
SIP Session Initiation Protocol
ZTE UMTS OPEX Saving Features Description
ZTE Confidential Proprietary © 2010 ZTE Corporation. All rights reserved. 13
SMS Short Message Service
SMS-CB SMS Cell Broadcast
SNA Shared Network Area
SONET Synchronous Optical Networking
SPI Schedule Priority Indicator
SRB Signalling Radio Bearer
SRNS Serving RNS
SSCF Service Specific Co-ordination Function
SSCOP Service Specific Connection Oriented Protocol
STM-1 Synchronous Transport Module Level 1
STTD Space Time Transmit Diversity
TB Transport Block
TC Traffic Class
THP Traffic Handling Priority
UDI Unrestricted Digital Information
URA User Registration Area
UTRAN UMTS Terrestrial Radio Access Network
VAM Virtual Antenna Mapping
VBR Variable Bit Rate
14 © 2011 ZTE Corporation. All rights reserved. ZTE Confidential Proprietary
VC Virtual Circuit
VoIP Voice over IP
WCDMA Wideband Code Division Multiple Access
WRR Weighted Round Robin
