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eRAN TDD
Adaptive ICIC Feature Parameter
Description
Issue 01
Date 2014-05-20
HUAWEI TECHNOLOGIES CO., LTD.
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Copyright © Huawei Technologies Co., Ltd. 2014. All rights reserved.
No part of this document may be reproduced or transmitted in any form or by any means without prior written
consent of Huawei Technologies Co., Ltd.
Trademarks and Permissions
and other Huawei trademarks are trademarks of Huawei Technologies Co., Ltd.
All other trademarks and trade names mentioned in this document are the property of their respective holders.
Notice
The purchased products, services and features are stipulated by the contract made between Huawei and the
customer. All or part of the products, services and features described in this document may not be within the
purchase scope or the usage scope. Unless otherwise specified in the contract, all statements, information,
and recommendations in this document are provided "AS IS" without warranties, guarantees or representations
of any kind, either express or implied.
The information in this document is subject to change without notice. Every effort has been made in the
preparation of this document to ensure accuracy of the contents, but all statements, information, and
recommendations in this document do not constitute a warranty of any kind, express or implied.
Huawei Technologies Co., Ltd.
Address: Huawei Industrial Base
Bantian, Longgang
Shenzhen 518129
People's Republic of China
Website: http://www.huawei.com
Email: [email protected]
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Contents
1 About This Document..................................................................................................................1
1.1 Scope..............................................................................................................................................................................1
1.2 Intended Audience..........................................................................................................................................................1
1.3 Change History...............................................................................................................................................................1
2 Overview.........................................................................................................................................4
3 Technical Description...................................................................................................................7
3.1 Concepts.........................................................................................................................................................................7
3.1.1 CCU and CEU.............................................................................................................................................................7
3.1.2 ICIC Working Mode....................................................................................................................................................7
3.2 Principles......................................................................................................................................................................10
3.2.1 Starting an Optimization Task...................................................................................................................................11
3.2.2 Identifying Areas with High Interference and Heavy Load......................................................................................12
3.2.3 Configuring and Optimizing ICIC Working Modes and Edge Band Modes............................................................12
4 Related Features...........................................................................................................................14
5 Network Impact...........................................................................................................................16
6 Engineering Guidelines.............................................................................................................17
6.1 When to Use Adaptive ICIC.........................................................................................................................................17
6.2 Required Information...................................................................................................................................................17
6.3 Planning........................................................................................................................................................................18
6.4 Deployment..................................................................................................................................................................18
6.4.1 Inventory-based Mode...............................................................................................................................................18
6.4.1.1 Process....................................................................................................................................................................18
6.4.1.2 Requir ements..........................................................................................................................................................19
6.4.1.3 Data Preparation.....................................................................................................................................................20
6.4.1.4 Precautions..............................................................................................................................................................25
6.4.1.5 Initial Configuration...............................................................................................................................................25
6.4.1.6 Activation Observation...........................................................................................................................................28
6.4.1.7 Optimization Advice Confirmation and Delivery..................................................................................................29
6.4.1.8 Reconfiguration......................................................................................................................................................31
6.4.1.9 Deactivation............................................................................................................................................................32
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6.4.2 Evolution-based Mode...............................................................................................................................................32
6.4.2.1 Process....................................................................................................................................................................32
6.4.2.2 Requirements..........................................................................................................................................................33
6.4.2.3 Data Preparation.....................................................................................................................................................33
6.4.2.4 Precautions..............................................................................................................................................................37
6.4.2.5 Initial Configuration...............................................................................................................................................37
6.4.2.6 Activation Observation...........................................................................................................................................38
6.4.2.7 Reconfiguration......................................................................................................................................................40
6.4.2.8 Deactivation............................................................................................................................................................41
6.5 Performance Monitoring...............................................................................................................................................41
6.6 Parameter Optimization................................................................................................................................................42
6.6.1 eCoordinator Parameters...........................................................................................................................................42
6.6.2 eNodeB Parameters...................................................................................................................................................43
6.7 Troubleshooting............................................................................................................................................................43
6.7.1 Inventory-based Mode...............................................................................................................................................43
6.7.2 Evolution-based Mode...............................................................................................................................................45
7 Parameters.....................................................................................................................................46
8 Counters........................................................................................................................................49
9 Glossary.........................................................................................................................................57
10 Reference Documents...............................................................................................................58
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1 About This Document
1.1 Scope
This document describes adaptive inter-cell interference coordination (ICIC) , including its
technical principles, related features, network impact, and engineering guidelines.
This document describes only adaptive ICIC, which corresponds to the optional feature
TDLOFD-060201 Adaptive Inter-Cell Interference Coordination.
Any managed objects (MOs), parameters, alarms, or counters described herein correspond to
the software release delivered with this document. Any future updates will be described in the
product documentation delivered with future software releases.
This document applies only to LTE TDD. Any "LTE" in this document refers to LTE TDD, and
"eNodeB" refers to LTE TDD eNodeB.
1.2 Intended Audience
This document is intended for personnel who:
l Need to understand inventory management
l Work with Huawei LTE products
1.3 Change History
This section provides information about the changes in different document versions. There are
two types of changes, which are defined as follows:
l Feature change
Changes in features of a specific product version
l Editorial change
Changes in wording or addition of information that was not described in the earlier version
eRAN TDD
Adaptive ICIC Feature Parameter Description 1 About This Document
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eRAN TDD 7.0 01 (2014-05-20)
This issue includes the following changes.
ChangeType
Change Description Parameter Change
Feature
change
None None
Editorial
change
None None
eRAN TDD 7.0 Draft A (2014-04-10)
Compared with Issue 01 (2013-09-30) of eRAN TDD 6.0, Draft A (2014-04-10) of eRAN TDD
7.0 includes the following changes.
ChangeType
Change Description Parameter Change
Feature
change
Changed the name of Huawei mobile element
management system from M2000 to U2000.
None
Added a new mode for deploying adaptive
ICIC. For details, see 6.4.2 Evolution-based
Mode.
Added the parameters related
to the following new
commands on theeCoordinator:
l ADD AICICCELL
l ADD AICIC
For details, see ECO6910
MML Command Reference in
ECO6910 Product
Documentation.
Added a troubleshooting method for the
evolution-based mode. For details, see 6.7.2
Evolution-based Mode.
Added the optimization of eNodeB
parameters. For details, see 6.6.2 eNodeB
Parameters.
None
Changed the alarm IDs from ALM-51153,
ALM-51301, and ALM-51304 to
ALM-20906, ALM-20741, and ALM-22746,
respectively. For details, see 6.4.1.2
Requirements, 6.4.1.6 Activation
Observation, and 6.7.1 Inventory-based
Mode.
None
Added a new type of ICIC working mode:
Type-2 Reuse3 mode. For details, see
Reuse3 in 3.1.2 ICIC Working Mode.
None
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ChangeType
Change Description Parameter Change
Editorial
change
Revised 2 Overview. None
Revised 3.2.1 Starting an Optimization
Task .
None
Revised 3.1.2 ICIC Working Mode. None
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2 Overview
ICIC works with scheduling and power control to mitigate inter-cell interference. ICIC divides
the frequency band of a cell into center and edge bands and classifies users into cell center users
(CCUs) and cell edge users (CEUs). With ICIC, the eNodeB schedules CCUs and CEUs on
different cell bands and allocates different power to CCUs and CEUs.
Huawei eNodeBs support static and adaptive ICIC. Adaptive ICIC differs from static ICIC in
the following ways:
l Static ICIC requires manual configuration of ICIC switches and edge band modes. This
configuration method cannot adapt to changes in UE type (CCU or CEU) distribution and
cell load.
l Adaptive ICIC determines whether to enable ICIC in an area based on inter-cell interference
and cell load. In addition, adaptive ICIC automatically configures edge band modes andoptimizes ICIC working modes and edge band modes based on load changes.
This document describes only adaptive ICIC, which corresponds to the optional feature
TDLOFD-060201 Adaptive Inter-Cell Interference Coordination.
Huawei ECO6910, whose network element (NE) type is eCoordinator, serves as a coordinator
on a radio network and provides a platform for implementing adaptive ICIC.
With adaptive ICIC, eNodeBs independently report cell information to the ECO6910, and then
the ECO6910 uses the reported information to configure and optimize ICIC working modes and
edge band modes. Adaptive ICIC is implemented jointly by the U2000, ECO6910, and eNodeBs.
Figure 2-1 shows the network architecture for adaptive ICIC.
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Figure 2-1 Network architecture for adaptive ICIC
In Figure 2-1:
l The blue, purple, and yellow areas indicate different cells under the same eNodeB.
l The black lines illustrate the connections between the eNodeBs and the U2000 before
adaptive ICIC is enabled.
l The red lines illustrate the connections between the ECO6910 and the eNodeBs and U2000
after adaptive ICIC is enabled.
When the ECO6910 is used to implement adaptive ICIC, the ECO6910, eNodeBs, and U2000
must be connected as illustrated by the black and red lines in Figure 2-1.
Table 2-1 describes the functions of NEs involved in adaptive ICIC.
Table 2-1 Functions of NEs involved in adaptive ICIC
NE Function
UE l Measures the reference signal received power (RSRP) of the
serving cell and neighboring cells.
l Reports the measurement results to the eNodeB.
eNodeB l Reports cell information (including inter-cell interference data
and cell edge load data) to the ECO6910.
l Updates the ICIC working modes and edge band modes for
cells based on the configurations delivered by the ECO6910.
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NE Function
ECO6910 l Maintains network-level interference data and cell edge load
data.
l Implements the adaptive ICIC algorithm by configuring ICICworking modes and edge band modes based on cell
information reported by eNodeBs.
l Delivers the configurations to eNodeBs.
U2000 l Serves as a platform for enabling and disabling adaptive ICIC.
l Displays the status of adaptive ICIC.
LMT l Serves as a supplementary platform for enabling and disabling
adaptive ICIC.
l Displays the status of adaptive ICIC.
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3 Technical Description
3.1 Concepts
3.1.1 CCU and CEU
Similar to static ICIC, adaptive ICIC also classifies users into CCUs and CEUs. For details about
how to identify CCUs and CEUs, see ICIC Feature Parameter Description.
CCUs and CEUs are scheduled as follows:
l Band allocation
– eNodeBs preferentially schedule CCUs on the center band. If there are remaining
frequency resources on the center band, eNodeBs can also schedule CEUs on the center
band.
– eNodeBs preferentially schedule CEUs on the edge band. If there are remaining
frequency resources on the edge band and CCUs have a higher scheduling priority on
the edge band than CEUs, eNodeBs can also schedule CCUs on the edge band.
l Power allocation
eNodeBs allocate higher power to CEUs and lower power to CCUs.
3.1.2 ICIC Working ModeAdaptive ICIC works in three modes: Reuse1, Reuse3, and Reuse6. The division of a cell band
into center and edge bands varies according to the ICIC working mode. When the cell bandwidth
is changed, the ECO6910 reconfigures the ICIC working mode in the next optimization period.
Reuse1
In Reuse1 mode, the cell band is not divided into center and edge bands. UEs are not classified
into CCUs or CEUs. All UEs share the entire cell band. In the downlink, all UEs use the same
power to receive signals. In the uplink, the transmit power of each UE is determined by the
uplink power control algorithm. For details about power control, see Power Control Feature
Parameter Description.
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All cells initially work in Reuse1 mode. Some cells can work only in Reuse1 mode when meeting
all the following conditions:
l These cells have the same bandwidth but different frequencies or have the same frequency
but different bandwidths.
l The bandwidths of these cells are 1.4 MHz or 3 MHz.
Reuse3
Reuse3 mode is classified into Type-1 and Type-2, which are selected based on cell load.
In Type-1 Reuse3 mode, 1/3 of the cell band is configured as the edge band, and the remaining
of the cell band is configured as the center band. As shown in Figure 3-1, the edge bands of
different cells do not overlap each other.
Figure 3-1 Type-1 Reuse3 mode
There are three edge band modes in Type-1 Reuse3 mode: Pattern3-1, Pattern3-2, and Pattern3-3.
The three modes correspond to low, medium, and high sub-bands, respectively. In each mode,
the edge band occupies 1/3 of the cell band. For example, if a cell uses Pattern3-1, the lowest
1/3 of the cell band works as the edge band. Some cells cannot work in Reuse3 mode when
meeting all the following conditions:
l These cells have the same bandwidth but different frequencies or have the same frequency
but different bandwidths.
l The bandwidths of these cells are 1.4 MHz or 3 MHz.
In Type-2 Reuse3 mode, the edge bands of different cells partially overlap, as shown in Figure
3-2. This mode allows CEUs to use wider bands than Type-1 Reuse3 mode.
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Figure 3-2 Type-2 Reuse3 mode
There are also three edge band modes in Type-2 Reuse3 mode: Pattern3-1, Pattern3-2, and
Pattern3-3. Each pattern occupies 2/3 of the cell band. For example, if a cell uses Pattern3-1,
the lowest 2/3 of the cell band works as the edge band.
Corresponding to the two types of Reuse3 mode, the eCoordinator can work in two modes,
dynamic mode and static mode:
l In dynamic mode, the eCoordinator instructs cells to work in Type-1 Reuse3 mode. It
periodically performs self-configuration and self-optimization of the ICIC working modes
and edge band modes.
l In static mode, the eCoordinator instructs cells to work in Type-2 Reuse3 mode. It
automatically performs self-configuration of the ICIC working modes and edge band modes
but does not perform self-optimization.
Operators can manually configure the working mode of the eCoordinator. However, if the
eCoordinator is configured to work in static mode, it can also automatically transit to dynamic
mode in the case of heavy load.
Reuse6
In Reuse6 mode, 1/6 of the cell band is configured as the edge band, and the remaining 5/6 of
the cell band is configured as the center band. Figure 3-3 shows the Reuse6 mode.
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Figure 3-3 Reuse6 mode
As shown in Figure 3-3, there are six edge band modes (Pattern6-1 to Pattern6-6) in Reuse6
mode. The six modes correspond to six sub-bands in ascending order of frequency. In each mode,
the edge band occupies 1/6 of the cell band. For example, if a cell uses Pattern6-6, the highest
1/6 of the cell band works as the edge band.
LTE systems use single carrier frequency division multiple access (SC-FDMA) in the uplink.
Therefore, UEs can work only on continuous uplink bands. To prevent the uplink band from
being too fragmented, a cell cannot use the Reuse6 mode in the uplink. In addition, to ensuresufficient downlink bandwidth, cells with a bandwidth of 1.4 MHz, 3 MHz, or 5 MHz cannot
work in Reuse6 mode in the downlink.
3.2 Principles
After adaptive ICIC is activated, the ECO6910 configures and optimizes the ICIC working
modes and edge band modes based on inter-cell interference and cell load. Figure 3-4 shows
the working principles of adaptive ICIC.
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Figure 3-4 Working principles of adaptive ICIC
3.2.1 Starting an Optimization Task
You can select all or some cells under the ECO6910 or under a specified eNodeB as the area for
which adaptive ICIC is to be activated, and determine whether adaptive ICIC takes effect in
uplink, downlink, or both.
Adaptive ICIC can be activated and deactivated using the U2000 or MML commands on the
ECO6910 LMT. After adaptive ICIC is activated, the ECO6910 identifies areas with high
interference and heavy load based on cell load and inter-cell interference. Based on the
identification results, the ECO6910 configures and optimizes the ICIC working modes and edge
band modes.
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3.2.2 Identifying Areas with High Interference and Heavy Load
The ECO6910 identifies areas with high interference and heavy load based on cell load and
inter-cell interference in each optimization period. Based on the identification results, the
ECO6910 configures and optimizes the ICIC working modes and edge band modes.
Areas with High Interference
The RSRP of the serving cell and the RSRP of the neighboring cells are used to determine
whether an area has high interference. The procedure for identifying areas with high interference
is as follows:
1. UEs send ICIC event A3/A6 measurement reports to the eNodeBs. Each report includes
the RSRP values of a UE's serving cell and neighboring cells. For details about events A3
and A6, see ICIC Feature Parameter Description.
2. The eNodeBs calculate unidirectional interference weights based on the reported RSRP
values, record them in cell-level intra-frequency neighboring relation tables (NRTs), and
periodically report the NRTs to the ECO6910.
NOTE
A unidirectional interference weight is the weight of the interference generated from one cell to
another cell.
3. The ECO6910 generates a network-level NRT based on the cell-level intra-frequency
NRTs, calculates bidirectional interference weights based on unidirectional interference
weights, and identifies areas with high interference.
Areas with Heavy Load
The eNodeBs report cell load information to the ECO6910. The cell load information includes
the average physical resource block (PRB) usage and the average number of scheduled UEs.
The ECO6910 identifies areas with heavy load based on the cell load information. If the ratio
of the number of heavily loaded cells to the total number of cells in an area with high interference
has reached a certain value, the ECO6910 regards this area as heavily loaded. Otherwise, the
ECO6910 regards this area as lightly loaded.
3.2.3 Configuring and Optimizing ICIC Working Modes and EdgeBand Modes
Self-Configuration
The ECO6910 periodically evaluates cell load and inter-cell interference, based on which it
configures the ICIC working modes and edge band modes.
l For cells in an area with high interference and heavy load, the ECO6910 sets the ICIC
working mode to Reuse3 and configures the edge band mode for each cell. If two cells have
the same edge band mode, the ECO6910 checks whether the bidirectional interference
weights have reached a specific threshold.
– If so, the ECO6910 changes the ICIC working modes of the two cells to Reuse6 and
configures different edge band modes for the two cells.
– If not, the ICIC working modes and edge band modes of the two cells remain unchanged.
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l For cells in an area with high interference and light load, the ECO6910 sets the ICIC
working mode to Reuse1.
l For cells in an area without high interference, the ECO6910 also sets the ICIC working
mode to Reuse1.
Self-Optimization
Inter-cell interference changes with cell load and UE type distribution. Therefore, adaptive ICIC
periodically optimizes the ICIC working modes and edge band modes. After the ICIC working
mode is determined in an optimization period, the ECO6910 checks the eNodeB-reported
average number of PRBs used for CEUs. Based on this information, the ECO6910 determines
whether to reconfigure the edge band mode for cells in Reuse3 and Reuse6 modes every 5
seconds.
l If the average number of PRBs used for CEUs in a cell is less than 1/6 of the entire cell
band, the ECO6910 sets the ICIC working mode of the cell to Reuse6 and the cell shrinks
its edge band.
l If the average number of PRBs used for CEUs in a cell is greater than 1/3 of the entire cell
band, the cell's neighboring cells shrink their edge bands and the cell expands its edge band
on the shrunk edge bands. If the edge bands of neighboring cells are not actually shrunk,
the cell has a fixed edge band that is 1/3 of the entire cell band.
l If the average number of PRBs used for CEUs is greater than 1/6 and less than 1/3 of the
entire cell band, the ICIC working mode and edge band mode of the cell remain unchanged.
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4 Related Features
Prerequisite FeaturesAdaptive ICIC requires the following features related to scheduling or power control:
l TDLBFD-002025 Basic Scheduling
l TDLOFD-001015 Enhanced Scheduling
l TDLOFD-00101502 Dynamic Scheduling
l TDLBFD-002026 Uplink Power Control
l TDLBFD-002016 Dynamic Downlink Power Allocation
With features related to scheduling, eNodeBs schedule the CEUs in a cell on the edge band of
this cell, and therefore mitigate inter-cell interference in the frequency domain. With featuresrelated to power control, eNodeBs allocate appropriate power resources to CCUs and CEUs,
further reducing inter-cell interference.
Mutually Exclusive Features
Adaptive ICIC cannot be used with the following static ICIC features:
l TDLBFD-00202201 Downlink Static Inter-Cell Interference Coordination
l TDLBFD-00202202 Uplink Static Inter-Cell Interference Coordination
lTDLOFD-002008 Adaptive SFN/SDMA
l TDLOFD-001082 Inter-BBU Adaptive SFN/SDMA
It is recommended that adaptive ICIC not be used together with static ICIC because of the
following reasons:
l If static ICIC is enabled on a network where adaptive ICIC has been enabled, static ICIC
will not work.
l If adaptive ICIC is enabled on a network where static ICIC has been enabled, static ICIC
will be automatically disabled. When the ECO6910 collects network information and
determines whether ICIC takes effect, the ICIC working mode of the cell is changed to
Reuse1. Consequently, the band on which UEs are scheduled and the power allocated to
UEs vary, which causes UE throughput fluctuation and deteriorates user experience. If UE
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throughput is too low during handovers or radio bearer setup, the handover success rate
may decrease and the service drop rate may increase.
Impacted Features
Adaptive ICIC impacts scheduling and power control as follows:
l Adaptive ICIC affects scheduling in both the uplink and downlink in the following ways:
– Adaptive ICIC provides edge band modes and UE types (CCU or CEU) for scheduling.
– With adaptive ICIC, eNodeBs schedule the CEUs of a cell on the edge band and schedule
CCUs preferentially on the center band. The eNodeBs can also schedule CCUs on the
entire cell band.
l Adaptive ICIC provides UE type information for downlink power control.
Downlink power control allocates appropriate power resources to CCUs and CEUs based
on the UE types and the PA values configured for CCUs and CEUs. In Reuse1 mode, all
UEs use the same PA value. For details about the description and configuration of PA, see
Power Control Feature Parameter Description.
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5 Network Impact
System CapacityAdaptive ICIC increases the throughput of CEUs by reducing inter-cell inter-CEU interference.
Adaptive ICIC reduces the system capacity because the downlink transmit power of CCUs is
reduced. The decrease in system capacity depends on the UE type distribution in the cell.
Generally, the system capacity does not decrease by more than 5%.
Network Performance
Adaptive ICIC enhances network coverage by increasing the throughput of CEUs.
Adaptive ICIC increases the number of signaling messages over the air interface because:
l Adaptive ICIC requires that UEs detect and report the RSRP values of neighboring cells
in the event A3 or A6 measurement report for the eNodeB to distinguish between CEUs
and CCUs in a cell.
l The eNodeB sends UEs the RRC Connection Reconfiguration message, which contains the
setting of UE transmit power.
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6 Engineering Guidelines
6.1 When to Use Adaptive ICIC
It is good practice to activate adaptive ICIC when the intra-frequency cells on an LTE network
experience intra-frequency interference. Adaptive ICIC does not affect ongoing services and
therefore can be activated any time.
Once adaptive ICIC has been activated, the ECO6910 will configure and optimize the ICIC
working modes and edge band modes for cells in an area with high interference and heavy load
when the interference and cell load reach their respective thresholds.
Adaptive ICIC takes priority over static ICIC. If adaptive ICIC is activated, static ICIC on theeNodeB will not work, and the related operations (such as the switch and mode configurations)
no longer take effect. Static ICIC can be enabled on the eNodeB only when adaptive ICIC is
deactivated.
Adaptive ICIC takes effect on a per cell basis and applies to multi-operator core network
(MOCN) and RAN sharing scenarios.
6.2 Required Information
Before activating adaptive ICIC on an LTE network, collect the key performance indicators
(KPIs) of the LTE network.
The following eNodeB counters are involved in adaptive ICIC:
1. Counters related to network load: average number of downlink CEUs in a cell, average
number of uplink CEUs in a cell, average number of used uplink PRBs, and average number
of used downlink PRBs
2. Counters related to interference: number of times MCS index n is scheduled on the PDSCH
(where n ranges from 0 to 31), number of times MCS index n is scheduled on the PUSCH
(where n ranges from 0 to 31), and number of reports with a wideband CQI of n (where n
ranges from 0 to 15)
For the IDs and descriptions of these counters, see 8 Counters.
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6.3 Planning
RF Planning
None
Network Planning
The neighboring cells in an optimization zone must use the same frequency and bandwidth and
the cell bandwidth in an optimization zone must be greater than or equal to 5 MHz. If the
neighboring cells use different frequencies or bandwidths, adaptive ICIC does not take effect
on the neighboring cells and the neighboring cells only work in Reuse1 mode.
Hardware Planning The ECO6910 and U2000 must be deployed.
6.4 Deployment
Adaptive ICIC can be deployed in inventory-based mode or evolution-based mode. Both of the
two modes are supported by ECO6910 V100R003.
The inventory-based mode applies in the following scenarios:
l Use ECO6910 V100R002 for deploying and maintaining adaptive ICIC.
l Use ECO6910 V100R003 for deploying and maintaining adaptive ICIC, where ECO6910V100R003 is upgraded from ECO6910 V100R002 but the inventory-based mode has not
been switched to the evolution-based mode.
The evolution-based mode applies in the following scenarios:
l Use ECO6910 V100R003 or later for deploying and maintaining adaptive ICIC.
l Use ECO6910 V100R003 for deploying and maintaining adaptive ICIC, where ECO6910
V100R003 is upgraded from ECO6910 V100R002 and the inventory-based mode has been
switched to the evolution-based mode.
NOTE
l In inventory-based mode, both the U2000 and the eCoordinator LMT can be used for deploying andmaintaining adaptive ICIC. In evolution-based mode, only the eCoordinator LMT can be used for
deploying and maintaining adaptive ICIC.
l If the eCoordinator LMT is used, MML commands are different in two modes.
The inventory-based mode will not be supported after ECO6910 V100R003. Therefore, it is
recommended that the inventory-based mode be switched to the evolution-based mode.
6.4.1 Inventory-based Mode
6.4.1.1 Process
Figure 6-1 outlines the procedure for deploying adaptive ICIC.
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Figure 6-1 Procedure for deploying adaptive ICIC
6.4.1.2 Requirements
Hardware
l eNodeBs are available. Adaptive ICIC applies only to macro cells in eRAN6.0 or later,
including:
– LTE macro cells served by single-mode base stations, which are DBS3900 LTE,
BTS3900 LTE, BTS3900A LTE, BTS3900L LTE, and BTS3900AL LTE.
– LTE macro cells served by multi-mode base stations, which are DBS3900, BTS3900,
BTS3900A, BTS3900L, and BTS3900AL.
l The ECO6910 has been installed, initially configured, and commissioned. The ECO6910
is available and connected to eNodeBs.
NOTE
For details about how to install, initially configure, and commission the ECO6910, see ECO6910
Installation Guide, ECO6910 Initial Configuration Guide, and ECO6910 Commissioning Guide,
respectively.
System ConfigurationsIntra-frequency neighbor relationships are configured between the cells in an optimization zone.
License
Operators have purchased and activated the following licenses on the ECO6910:
l ECO6910 Basic Software-LTE TDD (cell)
l Adaptive Inter-Cell Interference Coordination-LTE TDD (cell)
Adaptive Inter-Cell Interference Coordination-LTE TDD (cell) limits the total number of cells
that can be optimized by adaptive ICIC. If the number of selected cells exceeds the licensed
limit, the eCoordinator reports ALM-20741 Configuration Data Exceeding License Capacity.
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6.4.1.3 Data Preparation
This section describes the data that you need to collect for setting parameters. Required data is
data that you must collect for all scenarios. Collect scenario-specific data when necessary for a
specific feature deployment scenario.
There are three types of data sources:
l Network plan (negotiation not required): Parameters are planned and set by operators.
l Network plan (negotiation required): Parameters are planned by operators and negotiated
with the EPC or peer transmission equipment.
l User-defined: Parameters are set as required by users.
Required Data
None
Scenario-specific Data
When configuring adaptive ICIC, set the following parameters:
l Parameters for an optimization zone and optimization objects. For details, see Table 6-1.
l Parameters for adaptive ICIC. For details, see Table 6-2.
l Parameters for an optimization task. For details, see Table 6-3.
Table 6-1 Parameters for an optimization zone and optimization objects
ParameterName
Parameter ID Setting Notes Data Source
Optimization
Zone ID
OptiZoneId This parameter uniquely
identifies an optimization zone
on the eCoordinator.
User-defined
Optimization
Zone Name
OptiZoneName This parameter specifies the
optimization zone name.
User-defined
Optimization
Object Type
OptiObjType This parameter specifies the
type of optimization objects.
When this parameter is set toECO(ECO), the optimization
objects are all cells managed
by the eCoordinator.
When this parameter is set to
NE(NE), the optimization
objects are all cells under the
corresponding eNodeB.
When this parameter is set to
CELL(CELL), the
optimization object is a
specified cell.
Network plan
(negotiation not
required)
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ParameterName
Parameter ID Setting Notes Data Source
Optimization
Object ID
OptiObjId This parameter uniquely
identifies an optimizationobject.
When Optimization Object
Type is set to NE(NE), set this
parameter to NeIndex so that
you can run the LST NE
command to query the indexes
of all NEs managed by the
eCoordinator.
When Optimization Object
Type is set to CELL(CELL),
set this parameter toCellIndex so that you can run
the LST LTECELL command
to query the indexes of all LTE
cells managed by the
eCoordinator.
Network plan
(negotiation notrequired)
Optimization
Object RAT
RAT This parameter indicates the
RAT used in a cell to be
optimized. This parameter is
available only when
Optimization Object Type is
set to CELL(CELL). Set this parameter to LTE.
Network plan
(negotiation not
required)
Table 6-2 Parameters for adaptive ICIC
ParameterName
Parameter ID Setting Notes Data Source
Optimization
Type
OptiType You are advised to set this
parameter to DL(DownLink) so
that cell edge bands are optimizedonly in the downlink, because
traffic is heavy in the downlink
and light in the uplink.
Network plan
(negotiation not
required)
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ParameterName
Parameter ID Setting Notes Data Source
Optimization
Period
OptiPeriod This parameter specifies the
optimization period for adaptiveICIC. The system implements
optimization each time the
optimization period arrives.
Set this parameter to Day_1(1
Day) or longer if more than 2000
cells are to be optimized. Set this
parameter to Hour_1(1 Hour) or
longer if 100 to 2000 cells are to
be optimized. Set this parameter
to Min_15(15 Minutes) if 20 to
99 cells are to be optimized. Set
this parameter to Min_3(3
Minutes) if less than 20 cells are
to be optimized. This shortens the
duration from the time when
adaptive ICIC is started to the
time when the ECO6910
generates optimization advice.
Network plan
(negotiation notrequired)
Table 6-3 Parameters for an optimization task
ParameterName
ParameterID
GUIParameterName onthe U2000
Setting Notes DataSource
Optimizatio
n Feature
Index
OptiFeature
Id
Feature ID This parameter uniquely
specifies the ID of an
optimization task on the
eCoordinator.
User-
defined
Optimizatio
n Feature Name
OptiName Service
Name
This parameter specifies the
type of an optimization task.
User-
defined
Feature
Type
FeatureType Service Type This parameter specifies the
type of an optimization task. If
MML commands are used, set
this parameter to AICIC
(AICIC). If the U2000 is used,
select LTE Adaptive ICIC.
Network
plan
(negotiatio
n not
required)
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ParameterName
ParameterID
GUIParameterName onthe U2000
Setting Notes DataSource
Optimize
Cell Type
OptiCellTyp
e
Cell Type This parameter specifies the
type of a cell to be optimized.
l To optimize only FDD cells,
set this parameter to FDD.
l To optimize only TDD cells,
set this parameter to TDD.
l To optimize both FDD and
TDD cells, set this parameter
to BOTH in the related
MML commands or select
Both on the U2000.
Network
plan
(negotiatio
n not
required)
Optimizatio
n Parameter
Template
ID
ParaId Parameter
Policy
This parameter uniquely
specifies the ID of an
optimization parameter
template. The optimization
parameter template is added by
running the ADD
AICICOPTIPARA command.
Network
plan
(negotiatio
n not
required)
Optimizatio
n Zone ID
OptiZoneId Optimizatio
n Zone
This parameter uniquely
specifies the ID of an
optimization zone. Theoptimization zone is added by
running the ADD OPTIZONE
command.
Network
plan
(negotiation not
required)
Feature
Switch
EnableSwitc
h
Start
Optimizatio
n Service
This parameter specifies
whether to enable an
optimization task.
l To activate adaptive ICIC,
set this parameter to ON.
l To deactivate adaptive ICIC,
set this parameter to OFF.
Network
plan
(negotiatio
n not
required)
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ParameterName
ParameterID
GUIParameterName onthe U2000
Setting Notes DataSource
Optimizatio
n
Implementa
tion Mode
ImplementM
ode
Execution
Mode
This parameter specifies the
mode for implementing the
optimization advice.
l When this parameter is set to
MANUAL, the optimization
advice is implemented only
after you have confirmed it.
l When this parameter is set to
NOW, the optimization
advice is implemented
immediately after it isgenerated.
l When this parameter is set to
TIMER , the optimization
advice is automatically
implemented at the
scheduled time.
The ECO6910 generates
optimization advice on
reconfiguration of adaptive
ICIC working mode based on
cell load and inter-cellinterference in an optimization
period. If optimization advice is
not delivered to eNodeBs in
time, the reconfigured ICIC
working mode will not adapt to
cell load and inter-cell
interference in an optimization
period, weakening the
optimization effect of adaptive
ICIC. The value NOW is
recommended because the ICICworking mode can adapt quickly
to cell load and inter-cell
interference.
If OptiPeriod is set to Min_3(3
Minutes), the optimization
advice will be frequently
updated on the U2000, which
makes it difficult to manually
deliver the optimization advice.
To address this issue, set
Network
plan
(negotiatio
n not
required)
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ParameterName
ParameterID
GUIParameterName onthe U2000
Setting Notes DataSource
Optimization Implementation
Mode to NOW.
Optimizatio
n Delivery
Time
ImplementS
chedule
Schedule
Time
This parameter indicates the
time that the optimization
advice is scheduled for delivery.
This parameter is valid when
Optimization Implementation
Mode is set to TIMER . The
generated optimization advice is
delivered only at the scheduled
time.
Network
plan
(negotiatio
n not
required)
6.4.1.4 Precautions
None
6.4.1.5 Initial Configuration
Adaptive ICIC can be initially configured using the U2000 or using MML commands on the
ECO6910 LMT. The U2000 is recommended because the NEs to be managed by the ECO6910
can be added only on the U2000 client.
Using the U2000
Before initially configuring adaptive ICIC, upload the ECO6910 mediation software to the
U2000 server. To initially configure adaptive ICIC on the U2000 client, perform the following
operations:
Step 1 Select NEs to be managed by the ECO6910.
1. Log in to the U2000 client. Choose Configuration > eCoordinator Settings in the
traditional style, or double-click Configuration on the Application Center tab page and
then choose Settings > eCoordinator Settings in the application style.
The eCoordinator Settings window is displayed.
2. Click the NE Settings tab page in the eCoordinator Settings window. Choose the target
eCoordinator in the navigation tree and click , or right-click the eCoordinator and choose
Modify from the shortcut menu.
The Setting dialog box is displayed, as shown in Figure 6-2.
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Figure 6-2 Setting dialog box
3. Under Available NEs, select the NEs to be managed by the ECO6910 and add them to
Selected NEs. Click Next.
4. Specify User Name and Password, and then click OK .
5. Click to update the list of NEs to be managed by the ECO6910.
Step 2 Specify the zone to be optimized by the ECO6910.
1. Click the Zone Settings tab page in the eCoordinator Settings window. Click .
The Add Zone dialog box is displayed, as shown in Figure 6-3.
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Figure 6-3 Add Zone dialog box
NOTE
Cells under a newly added NE will be displayed under Available Objects 10 minutes after the NE
is added.
2. In the Add Zone dialog box, specify Zone Name. Select the optimization objects under
Available Objects, add them to Selected Objects, and click OK .
3. Click to update the optimization zones.
Step 3 Set the optimization parameters.
1. On the U2000 client, choose SON > LTE Adaptive ICIC in the traditional style, or double-
click SON on the Application Center tab page and then choose Self Optimization > LTE
Adaptive ICIC in the application style.
The LTE Adaptive ICIC window is displayed.
2. On the Parameter Policy tab page, select the target eCoordinator and click to create
optimization parameters. Set the parameters and then click Save. For details about the
parameters, see Table 6-2.
Step 4 Create an optimization task.
l Click the Optimization Management tab page in the LTE Adaptive ICIC window. Click
to create an optimization task.
The Create Optimization Service dialog box is displayed.
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l Set the parameters and click OK in the Create Optimization Service dialog box. For
parameter details, see Table 6-3.
----End
Using MML Commands
To initially configure adaptive ICIC using MML commands, add NEs to be managed by the
ECO6910 on the U2000 client and then log in to the ECO6910 LMT to perform the following
operations:
NOTE
For details about how to add NEs to be managed by the ECO6910 on the U2000 client, see Step 1 in Using
the U2000.
Step 1 Run the ADD OPTIZONE command to add an optimization zone. For details about how to set
the related parameters, see Table 6-1.
Step 2 Run the ADD OPTIOBJ command to add an optimization object. For details about how to set
the related parameters, see Table 6-1.
Step 3 Run the ADD AICICOPTIPARA command to add optimization parameters for adaptive ICIC.
For details about how to set the related parameters, see Table 6-2.
Step 4 Run the ADD OPTIFEATURE command to add an optimization task. For details about how
to set the related parameters, see Table 6-3.
----End
6.4.1.6 Activation Observation
Using the U2000
To check the running status of adaptive ICIC on the U2000, use either of the following methods:
l Checking the value of Status
On the Optimization Management tab page, select an optimization task and click .
Check the value of Status in the displayed Query Optimization Service dialog box.
– If Running is displayed under Status, as shown in Figure 6-4, the optimization task is
running properly. When the optimization task is complete, Completed is displayed
under Status. The system displays the optimization advice on the Optimization
Advice tab page in the right pane of the Optimization Management tab page.
– If Exception is dis played under Status, the task failed. Rectify the fault by following
the procedures for handling ALM-22746 Task Running Abnormal in ECO6910 Alarm
Reference.
– If Stopped is displayed under Status, the task has been stopped. Click to restart the
task.
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Figure 6-4 Query Optimization Service dialog box
l Checking the SON logs
The U2000 logs the optimization tasks related to adaptive ICIC. To check the logs for the
task status, perform the following operations:
1. On the U2000 client, choose SON > SON Log.
The SON Log window is displayed.
2. Click the Query SON Log tab page. On the Query SON Log tab page, set Log
Category to Adaptive ICIC Log, set Event Name to Not Limited, and set EventSource Object and Time Period as required.
3. Click Synchronize in the lower right corner of the SON Log window.
4. Click Query.
Using MML Commands
Run the DSP OPTIFEATURE command and check the value of State in the command output:
l If the value is Running, the optimization task is running properly.
lIf the value is Abnormal, rectify the fault by following the procedures for handlingALM-22746 Task Running Abnormal in ECO6910 Alarm Reference.
l If the value is Stopped, the optimization task has been stopped. To restart the optimization
task, run the MOD OPTIFEATURE command with Feature Switch set to ON(ON).
6.4.1.7 Optimization Advice Confirmation and Delivery
If the Optimization Implementation Mode parameter is set to MANUAL(MANUAL), the
generated optimization advice must be confirmed by the operator before it can be delivered to
eNodeBs. The latest batch of optimization advice is recommended and all of the optimization
advice in the same batch must be delivered together.
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NOTE
l If the delivered optimization advice is not the latest, the reconfigured ICIC working mode will not
adapt to cell load and inter-cell interference, therefore adversely affecting the network performance.
l The U2000 delivers all of the optimization advice in the same batch to eNodeBs, even if you choose
to deliver some pieces of optimization advice in a batch.
You are advised to view and deliver the optimization advice on the U2000. If an optimization
task is started using MML commands, the U2000 automatically displays the optimization advice.
To confirm and deliver the optimization advice, perform the following operations:
Step 1 On the U2000 client, choose SON > LTE Adaptive ICIC in the traditional style, or double-
click SON on the Application Center tab page and then choose Self Optimization > LTE
Adaptive ICIC in the application style.
The LTE Adaptive ICIC window is displayed.
Step 2 On the Optimization Management tab page, click the Optimization Advice tab page.
Step 3 On the Optimization Advice tab page, select optimization advice and click to deliver it.
The progress bar shows the progress of the delivery and implementation of the optimization
advice, as shown in Figure 6-5.
Figure 6-5 Optimization Advice tab page
----End
The optimization advice involves the following fields:
l CGI (MCC-MNC-eNodeB ID-Cell ID)
l eNodeB Namel Cell Name
l DlEarfcn
l DlBandWidth
l UL BandMode
l UL Suggestion
l DL BandMode
l DL Suggestion
l Cell FDD TDD Indication
l Generated On
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l Execution Time
l Operation Type
l Operation Status
lRollback Time
6.4.1.8 Reconfiguration
Using the U2000
To reconfigure adaptive ICIC on the U2000 client, perform the following operations as required.
If... Then...
Modify parameters for
an optimization zone.
l Choose Configuration > eCoordinator Settings in the
traditional style, or double-click Configuration on theApplication Center tab page and then choose Settings >
eCoordinator Settings in the application style.
The eCoordinator Settings window is displayed.
l On the Zone Settings tab page, click to modify parameters
for an optimization zone.
Modify the parameter
policy.
l Choose SON > LTE Adaptive ICIC in the traditional style, or
double-clickSON on the Application Center tab page and then
choose Self Optimization > LTE Adaptive ICIC in the
application style.
The LTE Adaptive ICIC window is displayed.
l On the Parameter Policy tab page, click to modify
optimization parameters.
NOTE
If an optimization task using a parameter policy is currently underway,
modifying the Optimization Type parameter of the parameter policy will
restart this task. The optimization period for an optimization task restarts
from the time when the optimization task is restarted.
Modify the execution
mode.
l Choose SON > LTE Adaptive ICIC in the traditional style, or
double-clickSON on the Application Center tab page and then
choose Self Optimization > LTE Adaptive ICIC in the
application style.The LTE Adaptive ICIC window is displayed.
l Click the Optimization Management tab page and click . In
the Modify Optimization Task dialog box, change the value
of Execution Mode.
Using MML Commands
To reconfigure adaptive ICIC using MML commands, perform the following operations as
required.
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If... Then...
Modify an optimization
zone.
Run the ADD OPTIZONE command to add a zone.
Modify an optimization
object.
Run the ADD OPTIOBJ command to add an object.
Modify the parameters
for adaptive ICIC.
Run the MOD AICICOPTIPARA command.
NOTE
If an optimization task using a parameter policy is currently underway,
modifying the Optimization Type parameter of the parameter policy will
restart this task. The optimization period for an optimization task restarts
from the time when the optimization task is restarted.
Modify the parameters
for an optimization
task.
Run the MOD OPTIFEATURE command.
6.4.1.9 Deactivation
Using the U2000
Select the adaptive ICIC feature on the U2000 and click to deactivate it.
Using MML Commands
Run the MOD OPTIFEATURE command with Feature Switch set to OFF(OFF) to stop theoptimization task.
6.4.2 Evolution-based Mode
6.4.2.1 Process
Figure 6-6 outlines the procedure for deploying adaptive ICIC.
Figure 6-6 Procedure for deploying adaptive ICIC
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6.4.2.2 Requirements
Hardware
For detailed requirements, see "Hardware" in 6.4.1.2 Requirements.
System Configuration
The requirements for system configuration are as follows:
l Intra-frequency neighbor relationships are configured between the cells to be optimized by
adaptive ICIC.
l The CeuPa and CcuPa parameters are associated with the PaPcOff parameter. For the
recommended values of CeuPa and CcuPa, see the eNodeB Parameter Reference.
l SCTP links between eNodeBs and the eCoordinator are configured on the eNodeB side.
For details about configuration, see 3900 Series Base Station Initial ConfigurationGuide.
l SCTP links between eNodeBs and the eCoordinator as well as eNodeB information and E-
UTRAN cells are configured on the eCoordinator side. For details about configuration, see
ECO6910 Initial Configuration Guide of V100R003.
License
Operators have purchased and activated the following licenses on the eCoordinator side.
Feature ID Feature Name License Control Item NE Sales Unit
None ECO6910 Basic
Software-LTE
TDD
ECO6910 Basic
Software-LTE TDD (per
Cell)
ECO6910 per Cell
None Hardware
Capacity of LTE
FDD and LTE
TDD Coordinated
Cell
Hardware Capacity of
LTE FDD and LTE TDD
Coordinated Cell (per 50
Cell)
ECO6910 per 50 Cell
TDLOFD-06
0201
Adaptive Inter-
Cell InterferenceCoordination
Adaptive Inter-Cell
Interference Coordination(LTE TDD) (per Cell)
ECO6910 per Cell
The Adaptive Inter-Cell Interference Coordination-LTE TDD (per Cell) license limits the total
number of LTE TDD cells that can be optimized by adaptive ICIC. If the number of selected
cells exceeds the licensed limit, the eCoordinator reports ALM-20741 Configuration Data
Exceeding License Capacity.
6.4.2.3 Data Preparation
When configuring adaptive ICIC, set the following parameters:
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l Parameters for optimization objects. For details, see Table 6-4.
l Parameters for an optimization task. For details, see Table 6-5.
Table 6-4 Parameters for an optimization object
ParameterName
ParameterID
Data Source Setting Notes
Task Identifier TaskId User-defined This parameter uniquely specifies a
task within the eCoordinator.
Cell Index Type QueryCellIdT
ype
User-defined This parameter specifies a cell index
type used for query.
LTE Cell Index LTECellInde
x
Network plan
(negotiation not
required)
This parameter uniquely specifies an
E-UTRAN cell index within the
network.
LTE Cell Name LTECellNam
e
Network plan
(negotiation not
required)
This parameter specifies the name of
the E-UTRAN cell.
The name cannot contain the
following characters:
l , ; = " '
l Two or more consecutive percent
signs (%)
l Two or more consecutive spaces
l Three or more consecutive plus
signs (+)
l Only spaces
Mobile Country
Code
MCC Network plan
(negotiation not
required)
This parameter specifies a mobile
country code (MCC), indicates which
country that mobile users belong to.
Mobile Network
Code
MNC Network plan
(negotiation not
required)
This parameter specifies a mobile
network code (MNC), which
indicates which PLMN that mobile
users belong to.
eNodeB ID eNodeBId Network plan(negotiation not
required)
This parameter references an eNodeBID, which is unique within the
network.
Cell ID CellId Network plan
(negotiation not
required)
This parameter references a cell ID,
which is unique within an eNodeB.
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Table 6-5 Parameters for an optimization task
ParameterName
Parameter ID Data Source Setting Notes
Task Identifier TaskId User-defined This parameter uniquely specifies atask within the eCoordinator.
Task Name TaskName User-defined This parameter uniquely specifies the
name of the task.
The name cannot contain the
following characters:
l , ; = " '
l Two or more consecutive percent
signs (%)
l Two or more consecutive spaces
l Three or more consecutive plus
signs (+)
l Only spaces
Cell Type CellType Network plan
(negotiation
not required)
This parameter specifies the type of
cells for which adaptive ICIC is
enabled. The parameter values are as
follows:
l FDD(FDD): indicates that
adaptive ICIC is enabled only for
FDD cells.l TDD(TDD): indicates that
adaptive ICIC is enabled only for
TDD cells.
l BOTH(BOTH): indicates that
adaptive ICIC is enabled for both
FDD and TDD cells.
Task Type TaskType Network plan
(negotiation
not required)
This parameter specifies the type of
adaptive ICIC. The parameter values
are as follows:
l UL(UpLink): indicates thatadaptive ICIC is applied only in
the uplink.
l DL(DownLink): indicates that
adaptive ICIC is applied only in
the downlink.
l ULDL(UpLink/DownLink) :
indicates that adaptive ICIC is
applied in both the uplink and the
downlink.
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ParameterName
Parameter ID Data Source Setting Notes
Running Period RunningPerio
d
Network plan
(negotiationnot required)
This parameter specifies the period
for calculating edge band modes.
Start Mode StartMode Network plan
(negotiation
not required)
This parameter specifies the task start
mode.
If this parameter is set to Now
(Now), the task starts immediately. If
this parameter is set to Delay
(Delay), the task starts at the time
specified by the StartTime
parameter.
Start Time StartTime Network plan(negotiation
not required)
This parameter specifies the task starttime.
This parameter takes effect when the
StartMode parameter is set to Delay
(Delay).
Running Mode RunningMode Network plan
(negotiation
not required)
This parameter specifies the running
mode of the eCoordinator. In
different modes, the eCoordinator
takes different actions.
If this parameter is set to
DYNAMIC_EDGE_BAND(DynamicEdgeBand) , the
eCoordinator instructs cells to work
in type-1 Reuse3 mode.
If this parameter is set to
STATIC_EDGE_BAND
(StaticEdgeBand) , the eCoordinator
instructs cells to work in type-2
Reuse3 mode.
High
Interference
Cell Threshold
HighInterCellI
nterThd
Network plan
(negotiation
not required)
This parameter specifies the high-
interference cell threshold, which is
used to determine whether to add a
cell to a high-interference area.
When enabling adaptive ICIC, adjust
this parameter to specify the actual
application area. A smaller value
indicates a large application area; a
larger value indicates a smaller
application area.
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ParameterName
Parameter ID Data Source Setting Notes
Region Average
InterferenceThreshold
ICICAreaAvgI
nterThd
Network plan
(negotiationnot required)
This parameter specifies the average
interference threshold of an adaptiveICIC application area. The threshold
is used to determine whether to
combine two areas into one high-
interference area.
When enabling adaptive ICIC, adjust
this parameter to specify the actual
application area. A smaller value
indicates a large application area; a
larger value indicates a smaller
application area.
RB UsageThreshold for
High
Interference
Cell
HighInterCell
RbUsageThd
Network plan(negotiation
not required)
This parameter specifies thethreshold of RB usage for cells with
high interference. A smaller value
indicates a higher probability that
ICIC areas are generated. A larger
value indicates a lower probability
that ICIC areas are generated.
UE Number
Threshold for
High
Interference
Cell
HighInterCell
UserNumThd
Network plan
(negotiation
not required)
This parameter specifies the number
threshold of UEs in cells with high
interference. A smaller value
indicates a higher probability that
ICIC areas are generated. A larger
value indicates a lower probability
that ICIC areas are generated.
Area Divide and
Identify Switch
RegionIdentify
Switch
Network plan
(negotiation
not required)
This parameter specifies the switch
for area division and identification.
When this switch is turned on, areas
with high interference and heavy
load are identified and ICIC takes
effect only in these areas. When this
switch is turned off, no actions are
performed to identify areas with highinterference and heavy load and ICIC
takes effect in the entire optimization
zone.
6.4.2.4 Precautions
None
6.4.2.5 Initial Configuration
Run the following commands on the eCoordinator LMT:
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Step 1 Run the ADD AICICCELL command to add a cell to be optimized.
Step 2 Run the ADD AICIC command to add an adaptive ICIC optimization task.
Step 3 Run the ACT AICIC command to activate the adaptive ICIC optimization task.
----End
6.4.2.6 Activation Observation
Using MML Commands
Run the DSP AICIC command on the eCoordinator to check the optimization task status. If the
command output shows that the value of Task Status is Running, adaptive ICIC has been
activated.
Using Counters
After an optimization period, check on the U2000 the running status of adaptive ICIC using the
counters listed in Table 6-6. If not all counter values are zero, adaptive ICIC has been activated.
Table 6-6 Adaptive ICIC counters of the eCoordinator
Counter ID Counter Name Description
73428290 VS.ELTECELL.AICIC.Config.Succ Number of successful deliveries
of edge band mode configuration
73428293 VS.ELTECELL.AICIC.Config.Fail Number of unsuccessful
deliveries of edge band mode
configuration
73428294 VS.ELTECELL.AICIC.Config.Att Number of attempts to deliver
edge band mode configuration
73428295 VS.ELTECELL.AICIC.Config.RspTi-
meout
Number of times there is no
response to deliveries of edge
band mode configuration
73428296 VS.ELTECELL.AICIC.DL.Mode.1 Number of times the downlink edge band mode is set to Reuse1
73428297 VS.ELTECELL.AICIC.DL.Mode.3.1 Number of times the downlink
edge band mode is set to
Reuse3-1
73428298 VS.ELTECELL.AICIC.DL.Mode.3.2 Number of times the downlink
edge band mode is set to
Reuse3-2
73428299 VS.ELTECELL.AICIC.DL.Mode.3.3 Number of times the downlink
edge band mode is set to
Reuse3-3
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Counter ID Counter Name Description
73428300 VS.ELTECELL.AICIC.DL.Mode.6.1 Number of times the downlink
edge band mode is set to
Reuse6-1
73428301 VS.ELTECELL.AICIC.DL.Mode.6.2 Number of times the downlink
edge band mode is set to
Reuse6-2
73428302 VS.ELTECELL.AICIC.DL.Mode.6.3 Number of times the downlink
edge band mode is set to
Reuse6-3
73428303 VS.ELTECELL.AICIC.DL.Mode.6.4 Number of times the downlink
edge band mode is set to
Reuse6-4
73428304 VS.ELTECELL.AICIC.DL.Mode.6.5 Number of times the downlink
edge band mode is set to
Reuse6-5
73428305 VS.ELTECELL.AICIC.DL.Mode.6.6 Number of times the downlink
edge band mode is set to
Reuse6-6
73428306 VS.ELTECELL.AICIC.UL.Mode.1 Number of times the uplink edge
band mode is set to Reuse1
73428307 VS.ELTECELL.AICIC.UL.Mode.3.1 Number of times the uplink edge
band mode is set to Reuse3-1
73428308 VS.ELTECELL.AICIC.UL.Mode.3.2 Number of times the uplink edge
band mode is set to Reuse3-2
73428309 VS.ELTECELL.AICIC.UL.Mode.3.3 Number of times the uplink edge
band mode is set to Reuse3-3
73428310 VS.ELTECELL.AICIC.UL.Mode.6.1 Number of times the uplink edge
band mode is set to Reuse6-1
73428311 VS.ELTECELL.AICIC.UL.Mode.6.2 Number of times the uplink edge
band mode is set to Reuse6-2
73428312 VS.ELTECELL.AICIC.UL.Mode.6.3 Number of times the uplink edge
band mode is set to Reuse6-3
73428313 VS.ELTECELL.AICIC.UL.Mode.6.4 Number of times the uplink edge
band mode is set to Reuse6-4
73428314 VS.ELTECELL.AICIC.UL.Mode.6.5 Number of times the uplink edge
band mode is set to Reuse6-5
73428315 VS.ELTECELL.AICIC.UL.Mode.6.6 Number of times the uplink edge
band mode is set to Reuse6-6
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Using an Se Interface Trace Task
On the eCoordinator LMT, Use an Se interface trace task to check whether adaptive ICIC has been activated:
Step 1 Choose Trace > Coordinating Services > Se Interface Trace, and double-click Se Interface
Trace.
Step 2 In the displayed dialog box, click the Basic tab, select the SCTPAP check box in the Trace
Type area, and set related parameters.
Step 3 Click Submit to complete the creation of the Se interface trace task.
Step 4 Check the trace result.
If the result includes the AICIC_DATA_RPT, AICIC_CONFIG, and
AICIC_CONFIG_ACK messages, as shown in Figure 6-7, adaptive ICIC has been activated.
Figure 6-7 Messages related to adaptive ICIC
----End
6.4.2.7 Reconfiguration
Adjusting Adaptive ICIC Parameters
Use MML commands to adjust adaptive ICIC parameters.
If… Then…
An optimization object
requires adjustment
Run the RMV AICICCELL command to remove an cell or run the
ADD AICICCELL command to add a cell.
An optimization task
requires adjustment
Run the MOD AICIC command to parameters related to an
optimization task.
NOTE
If a parameter is being used by an optimization task, adjusting the parameter
will cause the task to restart. The optimization period will be reset to the
restart time.
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Switching the Inventory-based Mode to the Evolution-based Mode
If ECO6910 V100R002 is upgraded to ECO6910 V100R003, you are advised to switch the
inventory-based mode to the evolution-based mode. Pay attention to the following items:
l Determine the switching time based on actual network conditions. Generally, perform the
switching during off-peak hours, for example, during the wee hours.
l Note that the switching will interrupt adaptive ICIC for a while. The interruption duration
depends on the switching duration. Generally, the switch can be completed within 10
minutes.
The switching procedure is as follows:
Step 1 Stop the running of adaptive ICIC in inventory-based mode, and ensure that adaptive ICIC is
successfully stopped. For detailed operations, see 6.4.1.9 Deactivation.
Step 2 Start the running of adaptive ICIC in evolution-based mode, and ensure that adaptive ICIC is
successfully started. For detailed operations, see 6.4.2.5 Initial Configuration.
----End
6.4.2.8 Deactivation
Run the DEA AICIC command to deactivate an adaptive ICIC optimization task.
6.5 Performance Monitoring
After adaptive ICIC is activated, check the changes in the following items:
l Average uplink and downlink edge spectral efficiencies
l Number of times different modulation and coding scheme (MCS) indexes are scheduled in
the uplink and downlink
These changes reflect the effect of adaptive ICIC. The average edge spectral efficiency can be
calculated using the following formula:
Average edge spectral efficiency = Total bits of user data from CEUs in a cell/(Total duration
for transmission of CEU data in a cell x Average number of PRBs used by CEUs in a cell)
Table 6-7 lists the counters used to monitor adaptive ICIC.
Table 6-7 Counters used to monitor adaptive ICIC
Counter ID Counter Name Description
1526728475 L.Thrp.bits.UL.CE
U
Total bits of user data received at the PDCP layer from
uplink CEUs in a cell
1526728476 L.Thrp.Time.UL.C
EU
Total duration for the PDCP layer receiving user data
from uplink CEUs in a cell
1526728477 L.Thrp.bits.DL.CE
U
Total bits of user data transmitted at the PDCP layer to
the downlink CEUs in a cell
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Counter ID Counter Name Description
1526728478 L.Thrp.Time.DL.C
EU
Total duration for the PDCP layer transmitting user data
to the downlink CEUs in a cell
1526728479 L.ChMeas.PRB.U
L.CEU.Used.Avg
Average number of PRBs used by the uplink CEUs in
a cell
1526728480 L.ChMeas.PRB.D
L.CEU.Used.Avg
Average number of PRBs used by the downlink CEUs
in a cell
1526727444
to
526727475
L.ChMeas.PDSCH
.MCS.0 to
L.ChMeas.PDSCH
.MCS.31
Number of times MCS index 0 is scheduled on the
PDSCH to Number of times MCS index 31 is scheduled
on the PDSCH
1526727412
to1526727443
L.ChMeas.PUSCH
.MCS.0 toL.ChMeas.PUSCH
.MCS.31
Number of times MCS index 0 is scheduled on the
PUSCH to Number of times MCS index 31 is scheduledon the PUSCH
1526728262 L.Thrp.Time.DL Total transmit duration of downlink PDCP SDUs in a
cell
6.6 Parameter Optimization
The parameters of adaptive ICIC that can be optimized include eCoordinator parameters andeNodeB parameters.
6.6.1 eCoordinator Parameters
On the eCoordinator, optimize the parameters related to the optimization period, object, and
zone.
l The Optimization Period parameter specifies how often the eCoordinator analyzes
network conditions and provides the optimization advice.
– If the parameter is set to a large value, the cell mode and network performance remain
stable for a long period of time. However, the cell mode cannot be updated in a timely
manner if the interference or cell load varies, which may adversely affect network performance.
– If the parameter is set to a small value, the eCoordinator can trace changes in network
conditions quickly and provide the appropriate optimization advice. However, the
eCoordinator will be heavily loaded for a long period of time and the network
performance may fluctuate.
In most cases, retain the default value Day_7(7 Days) for the Optimization Period
parameter. However, the parameter value can be changed as required. For details, see
6.4.1.8 Reconfiguration and 6.4.2.7 Reconfiguration .
l Optimization objects are cells to be optimized by adaptive ICIC. All of the cells to be
optimized form an optimization zone. You can add or remove optimization objects to adjust
the range of an optimization zone. It is recommended that cells providing continuous
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coverage be selected to form an optimization zone. For details, see 6.4.1.8
Reconfiguration and 6.4.2.7 Reconfiguration.
6.6.2 eNodeB Parameters
On the eNodeB, optimize the parameters related to the offset parameters of ICIC events A3 and
A6.
The offset parameters of downlink ICIC event A3, downlink ICIC event A6, and uplink ICIC
event A3 are specified by the A3Offset , A6Offset , and A3Offset parameters, respectively. These
parameters are used to adjust the number of CEUs by adjusting the cell edge scope reported in
ICIC events. When CEUs in an area accounts for about 1/3 of the total number of UEs in this
area, ICIC achieves the best performance.
The parameter settings have the following impact:
l If one of these parameters is set to a large value, it is difficult to trigger the reporting of the
corresponding ICIC event. As a result, the number of CEUs decreases, and some UEs areno longer regarded as CEUs and no longer coordinated by the eNodeB. In the uplink, these
UEs are scheduled on the center band, which leads to high interference to neighboring cells
and affects the performance of CEUs in the neighboring cells. In the downlink, these UEs
are regarded as CCUs and scheduled with low power, which deteriorates the performance
of these UEs.
l If one of these parameters is set to a small value, it is easy to trigger the reporting of the
corresponding ICIC event. As a result, the number of CEUs increases, and some CEUs that
require performance improvement cannot be coordinated and therefore their performance
deteriorates.
In conclusion, if the proportion of CEUs is far beyond or below 1/3 in an area during a period,adjust the corresponding parameter and enable the proportion to be close to 1/3. The average
number of uplink CEUs is measured by the L.Traffic.ULCEU.Avg counter, and the average
number of downlink CEUs is measured by the L.Traffic.CEU.Avg counter.
6.7 Troubleshooting
6.7.1 Inventory-based Mode
Optimization Task Startup FailureIf an optimization task fails to start, perform the following operations:
Step 1 Check whether ALM-20741 Configuration Data Exceeding License Capacity has been reported.
l If so, clear the alarm by following the procedures provided in ECO6910 Alarm Reference.
l If not, go to Step 2.
Step 2 Check whether ALM-22746 Task Running Abnormal has been reported.
l If so, clear the alarm by following the procedures provided in ECO6910 Alarm Reference.
l If not, contact Huawei technical support.
----End
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Optimization Advice Delivery Failure
If the optimization advice fails to be delivered, check whether ALM-20906 eCoordinator and
NE Disconnect Alarm has been reported.
l If so, clear the alarm by following the procedures provided in ECO6910 Alarm
Reference.
l If not, contact Huawei technical support.
No Optimization Advice Generated by Adaptive ICIC
When the optimization period arrives but the eCoordinator does not generate any optimization
advice, perform the following operations:
Step 1 Check whether a cell is working on a different frequency or bandwidth from its neighboring
cells in the optimization zone.
Adaptive ICIC is applicable only when neighboring cells use the same frequency and bandwidth.
l If a cell in the optimization zone is working on a different frequency or bandwidth from its
neighboring cells, the eCoordinator does not generate any optimization advice for the cell.
l If all of the neighboring cells in the optimization zone use the same frequency and bandwidth
but the eCoordinator does not generate any optimization advice, go to Step 2.
Step 2 Check the average inter-cell interference in the optimization zone. For details, see 6.2 Required
Information.
On networks where the distance between eNodeBs is large or the number of CEUs is small,inter-cell interference is low and therefore the eCoordinator does not generate any optimization
advice. If the inter-cell interference reaches a specified value in the optimization zone but the
eCoordinator does not generate any optimization advice, contact Huawei technical support.
----End
Alarms Related to Adaptive ICIC
Table 6-8 lists the alarms related to adaptive ICIC.
Table 6-8 Alarms related to adaptive ICIC
Alarm ID Alarm Name NE
20906 eCoordinator and NE Disconnect Alarm eCoordinator
20741 Configuration Data Exceeding License
Capacity
eCoordinator
22746 Task Running Abnormal eCoordinator
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6.7.2 Evolution-based Mode
Optimization Task Startup Failure
If an optimization task fails to start, check whether ALM-20741 Configuration Data ExceedingLicense Capacity has been reported.
l If so, clear the alarm by following the procedures provided in ECO6910 Alarm
Reference.
l If not, contact Huawei engineers.
Alarms Related to Adaptive ICIC
Table 6-9 lists the alarms related to adaptive ICIC.
Table 6-9 Alarms related to adaptive ICIC
Alarm ID Alarm Name NE
20906 eCoordinator and NE Disconnect Alarm eCoordinator
20741 Configuration Data Exceeding License Capacity eCoordinator
22702 Feature Function Disabled Abnormal eCoordinator
22701 Run short of NE data eCoordinator
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7 Parameters
Table 7-1 Parameter description
MO Parameter ID
MMLCommand
FeatureID
FeatureName
Description
CellDlp
cPdsch
CeuPa MOD
CELLD
LPCPD
SCH
LST
CELLD
LPCPDSCH
LBFD-0
02016 /
TDLBF
D-00201
6
LBFD-0
0202201/
TDLBF
D-00202
201
LOFD-0
0101401
Dynami
c
Downlin
k Power
Allocati
on
Downlink Static
Inter-
Cell
Interfere
nce
Coordin
ation
Downlin
k
Dynami
c Inter-Cell
Interfere
nce
Coordin
ation
Meaning: Indicates the PA value of cell edge UEs when
DL ICIC is enabled.
GUI Value Range: PA_NEG6(-6dB),
PA_NEG4DOT77(-4.77dB), PA_NEG3(-3dB),
PA_NEG1DOT77(-1.77dB), PA_0(0dB), PA_1(1dB),
PA_2(2dB), PA_3(3dB)
Actual Value Range: PA_NEG6, PA_NEG4DOT77,PA_NEG3, PA_NEG1DOT77, PA_0, PA_1, PA_2,
PA_3
Default Value: PA_NEG1DOT77(-1.77dB)
Unit: dB
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MO Parameter ID
MMLCommand
FeatureID
FeatureName
Description
CellDlpcPdsch CcuPa MODCELLD
LPCPD
SCH
LST
CELLD
LPCPD
SCH
LBFD-002016 /
TDLBF
D-00201
6
LBFD-0
0202201
/
TDLBF
D-00202
201
LOFD-00101401
Dynamic
Downlin
k Power
Allocati
on
Downlin
k Static
Inter-
Cell
Interfere
nce
Coordin
ation
Downlin
k
Dynami
c Inter-
Cell
Interfere
nce
Coordin
ation
Meaning: Indicates the PA value of cell center UEswhen DL ICIC is enabled.
GUI Value Range: PA_NEG6(-6dB),
PA_NEG4DOT77(-4.77dB), PA_NEG3(-3dB),
PA_NEG1DOT77(-1.77dB), PA_0(0dB), PA_1(1dB),
PA_2(2dB), PA_3(3dB)
Actual Value Range: PA_NEG6, PA_NEG4DOT77,
PA_NEG3, PA_NEG1DOT77, PA_0, PA_1, PA_2,
PA_3
Default Value: PA_NEG6(-6dB)
Unit: dB
CellDlp
cPdschP
a
PaPcOff MOD
CELLD
LPCPD
SCHPA
LST
CELLD
LPCPD
SCHPA
LBFD-0
02016 /
TDLBF
D-00201
6
Dynami
c
Downlin
k Power
Allocati
on
Meaning: Indicates the PA to be used when PA
adjustment for PDSCH power control is disabled, DL
ICIC is disabled, and the even power distribution is used
for the PDSCH.
GUI Value Range: DB_6_P_A(-6 dB),
DB_4DOT77_P_A(-4.77 dB), DB_3_P_A(-3 dB),
DB_1DOT77_P_A(-1.77 dB), DB0_P_A(0 dB),
DB1_P_A(1 dB), DB2_P_A(2 dB), DB3_P_A(3 dB)
Actual Value Range: DB_6_P_A, DB_4DOT77_P_A,
DB_3_P_A, DB_1DOT77_P_A, DB0_P_A,
DB1_P_A, DB2_P_A, DB3_P_A
Default Value: DB_3_P_A(-3 dB)
Unit: dB
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MO Parameter ID
MMLCommand
FeatureID
FeatureName
Description
CellMcPara A3Offset MODCELLM
CPARA
LST
CELLM
CPARA
None None Meaning: Indicates the offset for event A3. This offsetis the difference between the signal quality of a
neighboring cell and that of the serving cell. A larger
value indicates a higher requirement on neighboring cell
quality for reporting event A3.
GUI Value Range: -30~30
Actual Value Range: -15~15
Default Value: -13
Unit: 0.5dB
CellMcP
ara
A6Offse
t
MOD
CELLMCPARA
LST
CELLM
CPARA
None None Meaning: Indicates the offset for event A6. This offset
is the difference between the signal quality of aneighboring cell and that of the serving cell. A larger
value indicates a higher requirement on neighboring cell
quality for reporting event A6.
GUI Value Range: -30~30
Actual Value Range: -15~15
Default Value: -13
Unit: 0.5dB
CellULI
cicMcPara
A3Offse
t
MOD
CELLULICICM
CPARA
LST
CELLU
LICICM
CPARA
LBFD-0
0202202/
TDLBF
D-00202
202
LOFD-0
0101402
Uplink
StaticInter-
Cell
Interfere
nce
Coordin
ation
Uplink
Dynami
c Inter-
Cell
Interfere
nce
Coordin
ation
Meaning: Indicates the offset for the UL ICIC
measurement event. If this parameter is set to a largevalue, the signal quality of the neighboring cell must be
significantly better than that of the serving cell before a
UL ICIC measurement event is triggered. For details,
see 3GPP TS 36.331.
GUI Value Range: -30~30
Actual Value Range: -15~15
Default Value: -10
Unit: 0.5dB
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8 Counters
Table 8-1 Counter description
Counter ID Counter Name CounterDescription
Feature ID Feature Name
1526728480 L.ChMeas.PRB.DL
.CEU.Used.Avg
Average number of
PRBs used by
downlink CEUs in a
cell
Multi-mode: None
GSM: None
UMTS: None
LTE:
LBFD-00202201
TDLBFD-0020220
1LOFD-00101401
TDLOFD-0010140
1
LOFD-060201
TDLOFD-060201
Downlink Static
Inter-Cell
Interference
Coordination
Downlink Static
Inter-Cell
Interference
CoordinationDownlink Dynamic
Inter-Cell
Interference
Coordination
Downlink Dynamic
Inter-Cell
Interference
Coordination
Adaptive Inter-Cell
Interference
Coordination
Adaptive Inter-Cell
Interference
Coordination
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Counter ID Counter Name CounterDescription
Feature ID Feature Name
1526728479 L.ChMeas.PRB.UL
.CEU.Used.Avg
Average number of
PRBs used by uplink CEUs in a cell
Multi-mode: None
GSM: None
UMTS: None
LTE:
LBFD-00202202
TDLBFD-0020220
2
LOFD-00101402
TDLOFD-0010140
2
LOFD-060201
TDLOFD-060201
Uplink Static Inter-
Cell InterferenceCoordination
Uplink Static Inter-
Cell Interference
Coordination
Uplink Dynamic
Inter-Cell
Interference
Coordination
Uplink Dynamic
Inter-Cell
InterferenceCoordination
Adaptive Inter-Cell
Interference
Coordination
Adaptive Inter-Cell
Interference
Coordination
1526728477 L.Thrp.bits.DL.CE
U
Total bits of
downlink PDCP
SDUs sent to CEUsin a cell
Multi-mode: None
GSM: None
UMTS: None
LTE:
LBFD-00202201
TDLBFD-0020220
1
LOFD-00101401
TDLOFD-0010140
1
LOFD-060201
TDLOFD-060201
Downlink Static
Inter-Cell
InterferenceCoordination
Downlink Static
Inter-Cell
Interference
Coordination
Downlink Dynamic
Inter-Cell
Interference
Coordination
Downlink DynamicInter-Cell
Interference
Coordination
Adaptive Inter-Cell
Interference
Coordination
Adaptive Inter-Cell
Interference
Coordination
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Counter ID Counter Name CounterDescription
Feature ID Feature Name
1526728475 L.Thrp.bits.UL.CE
U
Total bits of uplink
PDCP PDUsreceived from CEUs
in a cell
Multi-mode: None
GSM: None
UMTS: None
LTE:
LBFD-00202202
TDLBFD-0020220
2
LOFD-00101402
TDLOFD-0010140
2
LOFD-060201
TDLOFD-060201
Uplink Static Inter-
Cell InterferenceCoordination
Uplink Static Inter-
Cell Interference
Coordination
Uplink Dynamic
Inter-Cell
Interference
Coordination
Uplink Dynamic
Inter-Cell
InterferenceCoordination
Adaptive Inter-Cell
Interference
Coordination
Adaptive Inter-Cell
Interference
Coordination
1526728478 L.Thrp.Time.DL.C
EU
Total duration in
which downlink
user data is sent toCEUs at the PDCP
layer in a cell
Multi-mode: None
GSM: None
UMTS: None
LTE:
LBFD-00202201
TDLBFD-0020220
1
LOFD-00101401
TDLOFD-0010140
1
LOFD-060201
TDLOFD-060201
Downlink Static
Inter-Cell
InterferenceCoordination
Downlink Static
Inter-Cell
Interference
Coordination
Downlink Dynamic
Inter-Cell
Interference
Coordination
Downlink DynamicInter-Cell
Interference
Coordination
Adaptive Inter-Cell
Interference
Coordination
Adaptive Inter-Cell
Interference
Coordination
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Counter ID Counter Name CounterDescription
Feature ID Feature Name
1526728476 L.Thrp.Time.UL.C
EU
Total duration in
which uplink user data is received from
CEUs at the PDCP
layer in a cell
Multi-mode: None
GSM: None
UMTS: None
LTE:
LBFD-00202202
TDLBFD-0020220
2
LOFD-00101402
TDLOFD-0010140
2
LOFD-060201
TDLOFD-060201
Uplink Static Inter-
Cell InterferenceCoordination
Uplink Static Inter-
Cell Interference
Coordination
Uplink Dynamic
Inter-Cell
Interference
Coordination
Uplink Dynamic
Inter-Cell
InterferenceCoordination
Adaptive Inter-Cell
Interference
Coordination
Adaptive Inter-Cell
Interference
Coordination
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Counter ID Counter Name CounterDescription
Feature ID Feature Name
1526727380 L.Traffic.CEU.Avg Average number of
downlink cell edgeusers (CEUs) in a
cell
Multi-mode: None
GSM: None
UMTS: None
LTE: LBFD-002007
TDLBFD-002007
LOFD-00101401
TDLOFD-0010140
1
LBFD-00202201
TDLBFD-0020220
1LOFD-060201
TDLOFD-060201
RRC Connection
ManagementRRC Connection
Management
Downlink Dynamic
Inter-Cell
Interference
Coordination
Downlink Dynamic
Inter-Cell
Interference
Coordination
Downlink Static
Inter-Cell
Interference
Coordination
Downlink Static
Inter-Cell
Interference
Coordination
Adaptive Inter-Cell
Interference
CoordinationAdaptive Inter-Cell
Interference
Coordination
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Counter ID Counter Name CounterDescription
Feature ID Feature Name
1526727381 L.Traffic.CEU.Max Maximum number
of downlink celledge users (CEUs)
in a cell
Multi-mode: None
GSM: None
UMTS: None
LTE: LBFD-002007
TDLBFD-002007
LOFD-00101401
TDLOFD-0010140
1
LBFD-00202201
TDLBFD-0020220
1LOFD-060201
TDLOFD-060201
RRC Connection
ManagementRRC Connection
Management
Downlink Dynamic
Inter-Cell
Interference
Coordination
Downlink Dynamic
Inter-Cell
Interference
Coordination
Downlink Static
Inter-Cell
Interference
Coordination
Downlink Static
Inter-Cell
Interference
Coordination
Adaptive Inter-Cell
Interference
CoordinationAdaptive Inter-Cell
Interference
Coordination
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Counter ID Counter Name CounterDescription
Feature ID Feature Name
1526728473 L.Traffic.ULCEU.
Avg
Average number of
uplink cell edgeusers (CEUs) in a
cell
Multi-mode: None
GSM: None
UMTS: None
LTE: LBFD-002007
TDLBFD-002007
LOFD-00101402
TDLOFD-0010140
2
LBFD-00202202
TDLBFD-0020220
2LOFD-060201
TDLOFD-060201
RRC Connection
ManagementRRC Connection
Management
Uplink Dynamic
Inter-Cell
Interference
Coordination
Uplink Dynamic
Inter-Cell
Interference
Coordination
Uplink Static Inter-
Cell Interference
Coordination
Uplink Static Inter-
Cell Interference
Coordination
Adaptive Inter-Cell
Interference
Coordination
Adaptive Inter-Cell
InterferenceCoordination
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Counter ID Counter Name CounterDescription
Feature ID Feature Name
1526728474 L.Traffic.ULCEU.
Max
Maximum number
of uplink cell edgeusers (CEUs) in a
cell
Multi-mode: None
GSM: None
UMTS: None
LTE: LBFD-002007
TDLBFD-002007
LOFD-00101402
TDLOFD-0010140
2
LBFD-00202202
TDLBFD-0020220
2LOFD-060201
TDLOFD-060201
RRC Connection
ManagementRRC Connection
Management
Uplink Dynamic
Inter-Cell
Interference
Coordination
Uplink Dynamic
Inter-Cell
Interference
Coordination
Uplink Static Inter-
Cell Interference
Coordination
Uplink Static Inter-
Cell Interference
Coordination
Adaptive Inter-Cell
Interference
Coordination
Adaptive Inter-Cell
InterferenceCoordination
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9 Glossary
For the acronyms, abbreviations, terms, and definitions, see Glossary.
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10 Reference Documents
1. 3GPP TS 36.331, "RRC Protocol Specification"
2. 3GPP TS 36.213, "Physical layer procedures"
3. ICIC Feature Parameter Description
4. Power Control Feature Parameter Description
5. ECO6910 Installation Guide
6. ECO6910 Initial Configuration Guide
7. ECO6910 Commissioning Guide
8. ECO6910 Alarm Reference
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Adaptive ICIC Feature Parameter Description 10 Reference Documents