UMTS and LTE Spectrum Sharing(SRAN13.0 01)

SingleRAN

UMTS and LTE Spectrum Sharing Feature Parameter Description Issue

01

Date

2017-11-15

HUAWEI TECHNOLOGIES CO., LTD.

Copyright © Huawei Technologies Co., Ltd. 2017. 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 trademarks and trade names mentioned mentioned in this this document are are the property of of their respective holders.

Notice The purchased products, services and features are stipulated by the contract made between Huawei and the customer. 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, information, and recommendations in this document are provided "AS IS" without warranties, guarantees or representations 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 recommendations in this document do not constitute a warranty of any kind, express or implied.

Huawei Technologies Co., Ltd. Address:

Huawei Industrial Industrial Base Bantian, Longgang Shenzhen 518129 People's Republic of China

Website:

http://www.huawei.com

Email:

[email protected]

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Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

i

SingleRAN UMTS and LTE Spectrum Sharing Feature Parameter Description

Contents

Contents 1 About This This Document........... Document................................. ............................................ ............................................. ............................................. .................................... .............. 1 1.1 General Statements......................................................................................................................................................... Statements......................................................................................................................................................... 1 1.2 Change History................................................................................................... H istory............................................................................................................................................................... ............................................................ 2 1.2.1 SRAN13.0 SRAN13.0 01 (2017-11-15)........................................... (2017-11-15)........................................................................................................................................ ............................................................................................. 2

2 Features in This Document......... Document............................... ............................................ ............................................ ............................................ ...............................3 .........3 3 Overview.................. Overview......................................... ............................................. ............................................ ............................................ ............................................ .............................. ........ 4 4 UMTS and LTE Spectrum Sharing............................. Sharing.................................................... ............................................. ........................................ .................. 5 4.1 Principles.......................................................................................................................... Principles........................................................................................................................................................................ .............................................. 5 4.1.1 Technical Principles.....................................................................................................................................................5 4.1.2 Feature Configurations................................................................................................ Configurations................................................................................................................................................ ................................................ 6 4.2 Network Analysis............................................................................................................ Analysis........................................................................................................................................................... ............................................... 8 4.2.1 Benefits........................................................................................................................................................................ Benefits........................................................................................................................................................................ 8 4.2.2 Impacts................................................................................................... Impacts.........................................................................................................................................................................8 ......................................................................8 4.3 Requirements................................................................................................................................................................ Requirements................................................................................................................................................................ 14 4.3.1 Licenses........................................................................................................................ Licenses..................................................................................................................................................................... ............................................. 14 4.3.2 Software..................................................................................................................................................................... Software.....................................................................................................................................................................15 15 4.3.3 Hardware............................................................................... Hardware................................................................................................................................................................... .................................................................................... 16 4.3.4 Networking....................................................................................................................................................... Networking................................................................................................................................................................ ......... 16 4.3.5 Others..................................................................................................... Others.........................................................................................................................................................................16 ....................................................................16 4.4 Operation and Maintenance.......................................................................................................................................... Maintenance..........................................................................................................................................17 17 4.4.1 Activation and Optimization..................................................................................................................................... Optimization..................................................................................................................................... 17 4.4.1.1 Data Preparation..................................................................................... P reparation..................................................................................................................................................... ................................................................ 17 4.4.1.2 Using MML Commands.........................................................................................................................................20 4.4.1.3 Using the CME....................................................................................................................................................... CME....................................................................................................................................................... 21 4.4.2 Activation Activati on Verification........................................................................... Verification.............................................................................................................................................. ................................................................... 22 4.4.3 Network Monitoring.................................................................................................................................................. Monitoring.................................................................................................................................................. 22

5 Glossary.................... Glossary........................................... ............................................. ............................................ ............................................ ............................................ ............................ ......23 23 6 Reference Documents......... Documents............................... ............................................ ............................................ ............................................ ...................................... ................ 24

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1 About This Document

1

About This Document

1.1 General Statements Purpose This document is intended to acquaint readers with: l

The technical principles of the features described herein and the related parameters

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The scenarios where these features are used, the benefits they provide, and the impact they have on networks and functions

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Requirements of the operating environment that must be met before feature activation

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Parameter configuration required for feature activation, verification of feature activation, and monitoring of feature performance

Labeling Unless otherwise stated, descriptions in this document apply to all RATs. RATs. If a description does not apply to all RATs, the specific RAT that it does apply to will be stated. For example, in the statement "TDD cells are compatible with enhanced MU-MIMO", "TDD cells" indicates that this function cannot be used in non-TDD cells.

Software Interfaces Any parameters, alarms, counters, or managed objects (MOs) described in this document apply only to the corresponding software release. For future software releases, refer to the corresponding updated product documentation.

Feature Differences Between RATs The feature difference section only describes differences in switches or principles.

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1 About This Document

1.2 Change History This section describes changes not included in the "Parameters", "Counters", "Glossary", "Glossary", and "Reference Documents" chapters. These changes include: l

Technical changes Changes in functions and their corresponding parameters

l

Editorial changes Improvements or revisions to the documentation

1.2.1 SRAN13.0 01 (2017-11-15) This is the first release of this document.

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2 Features in This Document

2

Features in This Document

This document describes the following multimode features.

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Feature ID

Feature Name

Section

MRFD-130222

UMTS and LTE Spectrum Sharing (LTE FDD)

4 UMTS and LTE Spectrum Sharing


3


3 Overview

3

Overview

Operators have growing demands for an increase in the rate of deployment or an improvement in capacity of LTE LTE networks. This is based on the higher popularity of data services and increasing penetration rate of smart terminals. However, However, since scattered spectrum does not meet current LTE LTE standard bandwidth requirements (even after integration or refarming), a number of operators possessing UMTS or UMTS and LTE LTE networks fail to introduce any new changes. This will eventually cause a waste of spectrum resources. The UMTS and LTE Spectrum Sharing feature allows UMTS and LTE networks to be codeployed on a non-standard bandwidth, achieving full utilization of operators' spectrum resources.

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4

UMTS and LTE Spectrum Sharing

4.1 Principles 4.1.1 Technical Principles The UMTS and LTE Spectrum Sharing feature punctures available RBs in LTE cells that use standard bandwidths. This helps to reduce the LTE effective bandwidth and enables LTE cells to work properly on a non-standard bandwidth. Figure 4-1 illustrates the working mechanism of this feature based on an LTE 10 MHz scenario. In this scenario, the LTE LTE bandwidth can be compressed by a maximum of 44%. Specifically, LTE LTE uses a 5.6 MHz non-standard bandwidth. UMTS uses a 4.2 MHz non-standard non-standard bandwidth through the WRFD-021001 WRFD-021001 Flexible frequency bandwidth of UMTS carrier feature. UMTS UEs are unaware of the actual available bandwidth, and still receive and transmit signals based on the 5 MHz standard bandwidth. Therefore, Therefore, to avoid interference interference from other networks, networks, a segment of 0.4 MHz MHz spectrum must be configured on the side of the UMTS spectrum that does not overlap with LTE, and a segment of 0.4 MHz UMTS and LTE overlapped spectrum is configured on the other side. The co-deployment of UMTS and LTE networks r equires equires a minimum minimum of 10.2 MHz spectrum. Figure 4-1 UMTS and LTE spectrum sharing

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The LTE LTE deployment on a non-standard bandwidth is implemented by RB puncturing. Any performance loss caused caused by RB puncturing is offset offset by physical channel channel resource management. The following describes resource allocation and scheduling for each LTE physical channel: l

Physical control format indicator channels (PCFICHs) and physical HARQ indicator channels (PHICHs) The positions of resource elements (REs) occupied by PCFICHs and PHICHs are related PhyCellId to the physical cell identifier (PCI), which is configured by the Cell. PhyCellId parameter. parameter. A PCI that suffers suffers no or little UMTS interference interference is planned planned to ensure the best possible PCFICH and PHICH PHICH performance. performance.

l

Physical downlink control channels (PDCCHs) Due to UMTS interference i nterference,, some resource element groups (REGs) of PDCCHs cannot be used. To To compensate for the loss in the demodulation performance performance of PDCCHs, PDCCHs, the transmit power or aggregation level of PDCCHs is boosted.

l

Physical downlink shared channels (PDSCHs) The resource allocation mode of PDSCHs remains unchanged.

l

Physical uplink control channels (PUCCHs) PUCCHs occupy symmetrical LTE LTE RBs that are available on the effective bandwidth.

l

Physical uplink shared channels (PUSCHs) The resource allocation mode of PUSCHs remains unchanged.

l

Sounding reference signals (SRSs) and physical random access channels (PRACHs) The resource allocation modes of SRSs and PRACHs remain unchanged, and SRSs and PRACHs can be multiplexed on the same RBs. NOTE

For details on the resource allocation and scheduling for other physical channels, see Physical Channel Channel Resource Resource Management Management Feature Feature Parameter Parameter Description Description in in eRAN Feature Documentation. Documentation .

4.1.2 Feature Configurations SpectrumCloud. SpectrumCloudSwitch witch parameter is This feature is enabled only when the SpectrumCloud. SpectrumCloudS set to UL_SPECTRUM_SHARING . To enable this feature, you also need to configure the LTE cell bandwidth and downlink control information transmission policy.

LTE Cell Bandwidth The actual available bandwidth and ULSPECTRUMSHRCONFIG.ULSpectrumSharingConfigId ULSPECTRUMSHRCONFIG. ULSpectrumSharingConfigId are configured for each LTE cell based on the network plan. The ranges of RBs that are actually available in the LTE ULSPECTRUMSHRCONFIG. PrbRsvT PrbRsvType ype, uplink and downlink are specified by the ULSPECTRUMSHRCONFIG. LtePrbStartIndex , and ULSPECTRUMSHRCONFIG. LtePrbStartIndex ULSPECTRUMSHRCONFIG. ULSPECTRUMSHRCONFIG. LtePrbEndIndex ULSPECTRUMSHRCONFIG. LtePrbEndIndex parameters. parameters. When the PrbRsvType ype parameter is set to: ULSPECTRUMSHRCONFIG. PrbRsvT ULSPECTRUMSHRCONFIG. l

LTE_DL_AVAILABLE_PRB LtePrbStartIndex and The ULSPECTRUMSHRCONFIG. and ULSPECTRUMSHRCONFIG. LtePrbStartIndex ULSPECTRUMSHRCONFIG. LtePrbEndIndex ULSPECTRUMSHRCONFIG. LtePrbEndIndex parameters parameters specify the range of actual available RBs in the downlink.

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LTE downlink actual available bandwidth = LtePrbEndIndex – (ULSPECTRUMSHRCONFIG. ULSPECTRUMSHRCONFIG. LtePrbEndIndex ULSPECTRUMSHRCONFIG. LtePrbStartIndex ULSPECTRUMSHRCONFIG. LtePrbStartIndex ) x 0.18 MHz l

LTE_UL_AVAILABLE_PRB ULSPECTRUMSHRCONFIG. LtePrbStartIndex LtePrbStartIndex and The ULSPECTRUMSHRCONFIG. and LtePrbEndIndex parameters parameters specify the range of actual ULSPECTRUMSHRCONFIG. LtePrbEndIndex ULSPECTRUMSHRCONFIG. available RBs in the uplink.

LTE uplink actual available bandwidth = LtePrbEndIndex – (ULSPECTRUMSHRCONFIG. ULSPECTRUMSHRCONFIG. LtePrbEndIndex ULSPECTRUMSHRCONFIG. LtePrbStartIndex ULSPECTRUMSHRCONFIG. LtePrbStartIndex ) x 0.18 MHz l

LTE_DL_HIGH_PRIORITY_PRB ULSPECTRUMSHRCONFIG. LtePrbStartIndex LtePrbStartIndex and The ULSPECTRUMSHRCONFIG. and LtePrbEndIndex parameters parameters specify the range of ULSPECTRUMSHRCONFIG. LtePrbEndIndex ULSPECTRUMSHRCONFIG. downlink RBs with a high scheduling priority. priority. UMTS UEs are unaware of the actual available bandwidth, and still receive and transmit signals based on the 5 MHz standard bandwidth. To To reduce the downlink interference from from LTE, LTE, of all actual available available RBs in the LTE LTE downlink, RBs that do not overlap with the UMTS standard 5 MHz bandwidth are preferentially scheduled. Therefore, the range of LTE downlink RBs with a high scheduling priority is less than or equal to the range of actual available RBs. NOTE

A guard band must be configured between UMTS and LTE spectrum to reduce the interference. The guard band must be at least equal to an RB on the LTE side. The RB that is configured as the guard band is not included in the range of LTE uplink actual available RBs, and is included in the range of LTE downlink actual available RBs.

LTE Downlink Control Information Transmission Policy SpectrumCloud. DlCchSendStrategy trategy parameter specifies the policy of transmitting The SpectrumCloud. DlCchSendS downlink control information in LTE cells. l

When this parameter is set to ADAPTIVE, LTE cell-specific reference signals (CRSs) and PDCCHs are transmitted only on the actual available bandwidth.

l

When this parameter is set to CRS_AND_PDCCH_ALL , LTE CRSs and PDCCHs are transmitted over the entire bandwidth.

l

When this parameter is set to CRS_ALL_AND_PDCCH_AVOIDED, LTE CRSs are transmitted over the entire bandwidth, but PDCCHs are transmitted only on the actual available bandwidth. NOTE

DlCchSendStrategy parameter be set to ADAPTIVE, It is recommended that the SpectrumCloud. DlCchSendStrategy but some UEs UEs may have compatibility issues under under this setting. setting.

Configuring the Enhanced Algorithm Switch for LTE Non-standard Bandwidth Scenarios NonStandardBwAlgoSw parameter in LTE non-standard Configure the CellAlgoSwitch. NonStandardBwAlgoSw bandwidth scenarios. l

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When the PCFICH_POWER_OPT_SWITCH option of this parameter is selected, the PCFICH power optimization function is supported in LTE non-standard non-standard bandwidth scenarios, and the PCFICH transmit power is adaptively adjusted based on the number of punctured RBs. Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

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SingleRAN UMTS and LTE Spectrum Sharing Feature Parameter Description l


When the PDCCH_POWER_OPT_SWITCH option of this parameter is selected, the PDCCH power optimization function is supported in LTE non-standard bandwidth scenarios, and the PDCCH transmit power is adaptively adjusted based on the number of punctured RBs.

4.2 Network Analysis 4.2.1 Benefits In an LTE 10 MHz scenario, LTE uses a non-standard bandwidth of 5.6 MHz. The downlink capacity of an LTE 5.6 MHz cell is 20% higher than that of an LTE cell using the adjacent lower bandwidth (5 MHz) under the same network conditions.

Counter

Calculation Formula

Downlink cell capacity

L.ChMeas.PRB.DL.Avail x ((L.Traffic.DL.SCH.QPSK.TB.bits + L.Traffic.DL.SCH.16QAM.TB.bits + L.Traffic.DL.SCH.64QAM.TB.bits + L.Traffic.DL.SCH.256QAM.TB.bits )/ L.ChMeas.PRB.DL.Used.Avg /Statistical period/

)

4.2.2 Impacts Network Impacts l

LTE UEs receive and transmit signals based on a standard bandwidth, and therefore are interfered by UMTS. The access success rate, handover success rate, average number of UEs in a cell, and cell residual block error rate (RBLER) decrease; the call drop rate and number of reestablishments increase. Table 4-1 lists the related counters. Table 4-1 4 -1 Counters indicating network impacts

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Counter

Calculation Formula

Impact

RRC setup success rate

L.RRC.ConnReq.Succ / L.RRC.ConnReq.Att

Decrease.

E-RAB setup success rate

L.E-RAB.SuccEst /L.E-RAB.AttEst

Decrease.

Bearer call drop rate

L.E-RAB.AbnormRel /(L.ERAB.AbnormRel + L.ERAB.NormRel )

Increase.


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l

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Counter

Calculation Formula

Impact

Number of RRC connection reestablishment requests

L.RRC.ReEst.Att

Increase.

Outgoing intrafrequency handover success rate

(L.HHO.IntraeNB.IntraFreq.ExecS uccOut + L.HHO.IntereNB.IntraFreq.ExecSu ccOut)/ (L.HHO.IntraeNB.IntraFreq.ExecAt tOut + L.HHO.IntereNB.IntraFreq.ExecAtt Out)

Decrease.

Outgoing interfrequency handover success rate

(L.HHO.IntraeNB.InterFreq.ExecSu ccOut + L.HHO.IntereNB.InterFreq.ExecSu ccOut)/ (L.HHO.IntraeNB.InterFreq.ExecAt tOut + L.HHO.IntereNB.InterFreq.ExecAtt Out)

Decrease.

Average number of UEs in a cell

L.Traffic.User.Avg

Decrease.

Cell uplink RBLER

(L.Traffic.UL.SCH.QPSK.ErrTB.Rb ler + L.Traffic.UL.SCH. 16QAM.ErrTB.Rbler + L.Traffic.UL.SCH. 64QAM.ErrTB.Rbler )/ (L.Traffic.UL.SCH.QPSK.TB + L.Traffic.UL.SCH.16QAM.TB + L.Traffic.UL.SCH.64QAM.TB )

Decrease.

Cell downlink RBLER

(L.Traffic.DL.SCH.QPSK.ErrTB.Rb ler + L.Traffic.DL.SCH. 16QAM.ErrTB.Rbler + L.Traffic.DL.SCH. 64QAM.ErrTB.Rbler )/ (L.Traffic.DL.SCH.QPSK.TB + L.Traffic.DL.SCH.16QAM.TB + L.Traffic.DL.SCH.64QAM.TB )

Decrease.

A proper PCI is planned to avoid the UMTS interference on PCFICHs and PHICHs. This increases the number of times PCIs are reused, as well as the probability of PCI conflicts. In addition, the PDCCH demodulation performance compensation algorithm increases the PDCCH overhead.


9

SingleRAN UMTS and LTE Spectrum Sharing Feature Parameter Description l


Available RBs are asymmetrically configured on the two sides of the LTE standard bandwidth. In the single user user scenario, uplink PUSCHs PUSCHs cannot occupy all all the available RBs, and consequently the LTE uplink single-user peak rate decreases.

Function Impacts

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RAT

Function Name

Function Switch

Reference (eRAN Feature Parameter Descriptio n Document )

FDD

eMTC Introduction

EMTC_SWITCH eMTC option of the Feature CellEmtcAlgo. EmtcAlg EmtcAlg Parameter oSwitch parameter Description

This function limits the range of RBs that can be punctured for different bandwidths. When the UMTS and LTE Spectrum Sharing feature requires a high bandwidth compression ratio, this function cannot be used. In the LTE 5 MHz scenario, UMTS and LTE Spectrum Sharing is mutually exclusive with this function.

FDD

Power Saving on eMTC

IDLE_EDRX_SWITC eMTC H option of the Feature CellEmtcAlgo. EmtcAlg EmtcAlg Parameter oSwitch parameter Description

This function limits the range of RBs that can be punctured for different bandwidths. When the UMTS and LTE Spectrum Sharing feature requires a high bandwidth compression ratio, this function cannot be used.

FDD

PCI N/A Collision Detection and SelfOptimization

PCI Conflict Detection and SelfOptimizatio n Feature Parameter Description


Description

This function conflicts with the UMTS and LTE Spectrum Sharing feature which lays restrictions on PCIs.

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RAT

Function Name

Function Switch

FDD

CPRI N/A Compression

FDD



Description

CPRI Compressio n Feature Parameter Description

It is recommended that the maximum compression ratio be set to 2:1. If the compression ratio is set to 3:1 or 4:1, severe interference occurs, affecting the gains provided by the UMTS and LTE Spectrum Sharing feature.

eMBMS Phase 1 based on Centralized MCE Architecture

MBMSSwitch option of eMBMS the Feature CELLMBMSCFG. MB CELLMBMSCFG. MB Parameter MSSwitch parameter Description

This function is affected by the UMTS and LTE LTE Spectrum Sharing feature. This is because this function requires transmission over the full band whereas the UMTS and LTE Spectrum Sharing feature does not support transmission on the LTE spectrum that overlaps with the UMTS spectrum.

FDD

DL 2x2 MIMO

N/A

FDD

DL 4x2 MIMO

FDD

DL 4x4 MIMO

The signal to interference plus noise ratio (SINR) measured over the full band is used for rank indication (RI) estimation. This SINR is lower than its actual value due to UMTS interference. Consequently, the reported rank value is lower than the actual value.

MIMO Feature Parameter Description


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RAT

Function Name

Function Switch


FDD

Carrier Aggregation for Downlink 3CC in 40MHz

CaDl3CCSwitch option of the CaMgtCfg.CellCaAlgoS CaMgtCfg.CellCaAlgoS witch parameter

FDD

Carrier Aggregation for Downlink 3CC in 60MHz

CaDl3CCSwitch option of the CaMgtCfg.CellCaAlgoS CaMgtCfg.CellCaAlgoS witch parameter

Carrier It is recommended that Aggregation the carrier operating in a Feature 5 MHz bandwidth not Parameter be used as the primary primary Description component carrier (PCC). Otherwise, the PUCCH overhead increases, and SRSs cannot be configured.

FDD

Carrier Aggregation for Downlink 4CC and 5CC

CaDl4CCSwitch and CaDl5CCSwitch options of the CaMgtCfg.CellCaAlgoS CaMgtCfg.CellCaAlgoS witch parameter

FDD

LoCation Services (LCS)

N/A

LCS Feature Parameter Description

If positioning reference signals (PRSs) are configured as the pilot signals, it is recommended that the PRS bandwidth be set to a value smaller than the cell bandwidth and that the PRS configuration index be set to a value to avoid UMTS interference.

FDD

DL 256QAM

Dl256QamSwitch and Dl256QamAccessorySw itch options of the CellAlgoSwitch .Dl256Q amAlgoSwitch parameter

Modulation Schemes Feature Parameter Description

The in-band UMTS interference leads to a decrease in the LTE SINR. The decreased SINR may affect the proportion of UEs using the higher order modulation (HOM) and the gain provided by HOM. For example, the proportion of UEs using


Description

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RAT

Function Name

Function Switch

FDD

PUSCHCfg.Qam64Ena UL 64QAM PUSCHCfg.Qam64Ena bled and and PUSCHCfg. R12Qam64 PUSCHCfg. R12Qam64 Enabled

FDD

Mobility N/A Management



Description

DL 256QAM is decreased, reducing the gain provided by DL 256QAM. Overview of Mobility Managemen t in Connected Mode Feature Parameter Description


When the UMTS and LTE Spectrum Sharing feature is enabled, LTE CRSs are not always transmitted. Consequently, the measured reference signal received power (RSRP) may be inaccurate. The measured received signal strength indicator (RSSI) used for reference signal received quality (RSRQ) calculation is affected by UMTS interference. Therefore, the RSRQ, which equals RSRP divided by RSSI, may deviate significantly from the actual value. It is recommended that the RSRP be used when the UMTS and LTE Spectrum Sharing feature is enabled. The measurement trigger items are specified by the Int IntraRatHoComm. Int erFreqHoA1A2TrigQu an and InterRatHoComm. Inte Inte rRatHoUtranB1MeasQ uan parameters.

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RAT

Function Name

Function Switch


Description

FDD

LTE In-band Deployment

PRB. DeployMode DeployMode

NB-IoT Radio and Performanc e Basics Feature Parameter Description

The UMTS and LTE Spectrum Sharing feature punctures available RBs, consequently reducing the range of RBs available for NB-IoT deployment.

FDD

LTE Guardband Deployment

FDD

Adaptive N/A Inter-Cell Interference Coordination (adaptive ICIC)

The UMTS and LTE Spectrum Sharing feature punctures available RBs, and may make the guard band unavailable for NB-IoT deployment. Adaptive ICIC Feature Parameter Description

The UMTS and LTE Spectrum Sharing feature reduces the application scope of adaptive ICIC, since it reduces the range of available RBs whereas adaptive ICIC applies only to available RBs.

4.3 Requirements 4.3.1 Licenses

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RAT

Feature ID

Feature Name

Model

Sales Unit

FDD

MRFD-13 0222

UMTS and LTE Spectrum Sharing (LTE FDD)

LT1SULSPCON C

Per Cell


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RAT

Feature ID

Feature Name

Model

Sales Unit

FDD

N/A

RF Spectrum Sharing License (FDD)

LT1SR T1SRFS FSPC PCS0 S00 0

Per Per Band Band Per Per RU

4.3.2 Software Prerequisite Functions RAT

Function Name

Function Switch

Reference

UMTS

Flexible frequency bandwidth of UMTS carrier

N/A

GU 900 MHz Non standard Frequency Frequency Spacing Feature Parameter Description in Description in RAN RAN Feature Documentation

Mutually Exclusive Functions

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RAT

Function Name

Function Switch

FDD

UL Refarming Zero Bufferzone (Trial)

AvoidUtranInterfSUL Refarming Zero witch option of the CellAlgoSwitch. Avoid Avoid Bufferzone InterfSwitch parameter Feature Parameter Description


Reference (eRAN Feature Parameter Description Document)

Description

This function enables UMTS and LTE bandwidth sharing, and cannot be used together with the UMTS and LTE Spectrum Sharing feature.

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RAT

Function Name

Function Switch

FDD

ePDCCH (Trial) EpdcchFunctionSwitch of the CellPdcchAlgo. Epdcc Epdcc hAlgoSwitch parameter

Reference (eRAN Feature Parameter Description Document)

Description

Physical Channel Resource Management Feature Parameter Description

This function does not support LTE non-standard bandwidths, and therefore cannot be used together with the UMTS and LTE Spectrum Sharing feature.

4.3.3 Hardware Base Station Models Micro BTS3911E

Cells l

LTE cell bandwidth: 10 MHz

l

Antenna specifications: 1T1R, 1T2R, and 2T2R

4.3.4 Networking l

UMTS and LTE cells must be deployed in 1:1 co-site and co-coverage mode.

l

The power ratio of UMTS and LTE cells must be equal to 1:1. The LTE power is the sum of the power of multiple antennas.

l

This feature can be enabled on either of the following:

–

Specific areas of the network A buffer zone must be planned to prevent co-channel interference between UMTS and LTE. LTE. The method for planning the buffer zone is the same as that for planning the buffer zone in UL refarming scenarios. During buffer zone planning, operators must consider the t he spectrum resources of both RAT RATs. For more information, contact Huawei engineers.

–

Entire network No buffer zone zone is required.

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4.4 Operation and Maintenance 4.4.1 Activation and Optimization It is recommended that this feature be activated when traffic is light, for example, in the early morning. This is because reconfigurations are required during feature activation, which causes LTE cells to reset.

4.4.1.1 Data Preparation l

Table 4-2 describes the parameters used for function activation. This section does not describe parameters related to cell establishment.

l

4 -3. The parameters used for feature optimization are described in Table 4-3

Table 4-2 4 -2 Parameters used for activation

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Parameter Name

Parameter ID

Option

UMTS and LTE Spectrum Sharing Config ID

ULSPECTRUMSH N/A RCONFIG.ULSpect RCONFIG. ULSpect rumSharingConfigId

Set this parameter based on the network plan.

PRB Reserve Type

ULSPECTRUMSH N/A RCONFIG. PrbRsvT RCONFIG. PrbRsvT ype


LTE PRB Start Index

ULSPECTRUMSH N/A RCONFIG. LtePrbSt RCONFIG. LtePrbSt artIndex


LTE PRB End Index

ULSPECTRUMSH N/A RCONFIG. LtePrbE RCONFIG. LtePrbE ndIndex


Spectrum Cloud Switch

SpectrumCloud. Spe SpectrumCloud. Spe ctrumCloudSwitch

UL_SPECTRUM_ Select the SHARING UL_SPECTRUM_SHA RING option of this parameter. parameter.

UMTS and LTE Spectrum Sharing Config ID

SpectrumCloud.UL SpectrumCloud. UL SpectrumSharing SpectrumSharingConfigId

N/A

Downlink CCH Send Strategy

SpectrumCloud. DlC SpectrumCloud. DlC N/A chSendStrategy


Setting Notes


It is recommended that that this parameter be set to ADAPTIVE.

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Parameter Name

Parameter ID

Non-Standard Bandwidth Algorithm Switch

Non CellAlgoSwitch. Non StandardBwAlgoSw StandardBwAlgoSw

PRACH Frequency Offset

RACHCfg. PrachFre RACHCfg. PrachFre N/A qOffset

It is recommended that that this parameter be set to 22.

PUCCH algorithm switch

CellAlgoSwitch. Puc Puc chAlgoSwitch

It is recommended that the option of this parameter be deselected. deselected.

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Option

Setting Notes

It is recommended that PCFICH_POWE R_OPT_SWITCH both options of this and parameter be selected. selected. PDCCH_POWER _OPT_SWITCH _OPT_SWITCH

PucchSwitch


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Table 4-3 4 -3 Parameters used for optimization (Suggestions on PUCCH configuration when enabling this feature in the LTE LTE 10 MHz bandwidth scenario)

Whether to Deploy NB-IoT

CP Type Type

Suggesti Suggestion on on on Config Configuring uring Uplink Uplink Contr Control ol Channe Channellrelated Parameters

No

Normal CP

l

l

User CQI period CellCqiAdaptiveCfg.UserCqiPeriod CellCqiAdaptiveCfg. UserCqiPeriod : Set this parameter to ms160.

l

SRI Period Adaptive Adaptive Switch PUCCHCfg. SriPeriodAdaptive PUCCHCfg. SriPeriodAdaptive: Use the default value of this parameter.

l

Delta shift PUCCHCfg. DeltaShift PUCCHCfg. DeltaShift : Set this parameter to DS1_DELTA_SHIFT(ds1).

l

CQI RB number PUCCHCfg.CqiRbNum PUCCHCfg. CqiRbNum : Use the default value of this parameter. parameter.

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ACK/SRI Channel Number PUCCHCfg. NaSriChNum PUCCHCfg. NaSriChNum: Configure this parameter by referring to the related descriptions of PUCCH resource management in Physical in Physical Channel Resource Resource Management Management Feature Parameter Description. Description.

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Format3 RB Number PUCCHCfg.Format3RbNum PUCCHCfg. Format3RbNum: Use the default value of this parameter. parameter.

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CQI Period Adaptive Adaptive Switch CellCqiAdaptiveCfg.CqiPeriodAdaptive CellCqiAdaptiveCfg. CqiPeriodAdaptive: Set this parameter to OFF.

Max 2CC ACK Channel Number PUCCHCfg. Max2CCAckC PUCCHCfg. Max2CCAckChNum hNum: Use the default value of this parameter. SRI Period CellQciPara. SriPeriod SriPeriod : Use the default value of this parameter. parameter.


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Whether to Deploy NB-IoT

CP Type Type

Suggesti Suggestion on on on Config Configuring uring Uplink Uplink Contr Control ol Channe Channellrelated Parameters

Yes

Normal CP

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CQI Period Adaptive Adaptive Switch CellCqiAdaptiveCfg.CqiPeriodAdaptive CellCqiAdaptiveCfg. CqiPeriodAdaptive: Set this parameter to OFF.

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User CQI period CellCqiAdaptiveCfg.UserCqiPeriod CellCqiAdaptiveCfg. UserCqiPeriod : Set this parameter to ms160.

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SRI Period Adaptive Adaptive Switch PUCCHCfg. SriPeriodAdaptive PUCCHCfg. SriPeriodAdaptive: Set this parameter to OFF.

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Delta shift PUCCHCfg. DeltaShift PUCCHCfg. DeltaShift : Set this parameter to DS1_DELTA_SHIFT(ds1).

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CQI RB number PUCCHCfg.CqiRbNum PUCCHCfg. CqiRbNum : Set this parameter to 2.

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ACK/SRI Channel Number PUCCHCfg. NaSriChNum PUCCHCfg. NaSriChNum: Set this parameter to 124.

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Format3 RB Number PUCCHCfg.Format3RbNum PUCCHCfg. Format3RbNum: Use the default value of this parameter. parameter. Max 2CC ACK Channel Number PUCCHCfg. Max2CCAckC PUCCHCfg. Max2CCAckChNum hNum: Use the default value of this parameter. SRI Period CellQciPara. SriPeriod SriPeriod : Set this parameter to ms40(SRI 40ms).

4.4.1.2 Using MML Commands Deactivate LTE LTE cells, then perform the following operations to configure parameters before reactivating these cells.

Activation Command Examples (Using an LTE Actual Available Bandwidth of 5.6 MHz as an Example) //(Optional) Reconfiguring the LTE center EARFCN and bandwidths if necessary MOD CELL: LocalCellId=0, DlEarfcn=5900, DlBandWidth=CELL_BW_N50, UlBandWidth=CELL_BW_N50; //Configuring the PRACH frequency offset MOD RACHCFG: LocalCellId=0, PrachFreqOffset=22; //Setting the PUCCH resource adjustment switch MOD CELLALGOSWITCH: LocalCellId=0, PucchAlgoSwitch=PucchSwitch-0&Dl2CCAckResShareSw-1&SCCAckResourceCfgSw-1; //Configuring the RBs reserved for LTE (range of actual available RBs) ADD ULSPECTRUMSHRCONFIG: ULSpectrumSharingConfigId=0, PrbRsvType=LTE_DL_AVAILABLE_PRB, LtePrbStartIndex=22, LtePrbEndIndex=49; ADD ULSPECTRUMSHRCONFIG: ULSpectrumSharingConfigId=0, PrbRsvType=LTE_UL_AVAILABLE_PRB, LtePrbStartIndex=22, LtePrbEndIndex=49; ADD ULSPECTRUMSHRCONFIG: ULSpectrumSharingConfigId=0,

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PrbRsvType=LTE_DL_HIGH_PRIORITY_PRB, LtePrbStartIndex=23, LtePrbEndIndex=49; //Enabling the UMTS and LTE Spectrum Sharing feature ADD SPECTRUMCLOUD: LocalCellId=0, SpectrumCloudSwitch=UL_SPECTRUM_SHARING, DlCchSendStrategy=ADAPTIVE, ULSpectrumSharingConfigId=0; //Configuring the non-standard bandwidth algorithm switch MOD CELLALGOSWITCH:LocalCellId=0, NonStandardBwAlgoSw=PcfichPowerOptSwitch-1&PdcchPowerOptSwitch-1;

Optimization Command Examples (Using an LTE Actual Available Bandwidth of 5.6 MHz as an Example) //Setting the CQI period adjustment switch and user CQI period MOD CELLCQIADAPTIVECFG: LocalCellId=0, CqiPeriodAdaptive=OFF, UserCqiPeriod=ms160; //Setting the SRI period adaptive switch, delta shift, number of CQI RBs, ACK/SRI channel number, format 3 RB number, and the maximum number of 2CC ACK channels MOD PUCCHCFG: LocalCellId=0, DeltaShift=DS3_DELTA_SHIFT, NaSriChNum=39, CqiRbNum=2, SriPeriodAdaptive=OFF, Format3RbNum=1, Max2CCAckChNum=MAX_CH_NUM8; //Setting the SRI period MOD CELLQCIPARA: LocalCellId=0, Qci=1, SriPeriod=ms40;

4.4.1.3 Using the CME l

Fast Batch Activation This feature can be batch activated using the Feature Operation and Maintenance function of the CME. For detailed operations, see the following section in the CME product documentation or online help: CME Management > CME Guidelines > Enhanced Feature Management > Feature Operation and Maintenance .

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Single/Batch Configuration This feature can be activated for a single base station or a batch of base stations on the CME. This section uses the eNodeB as an example. For detailed operations, see CME based Feature Configuration Configuration or the CME online help (press F1 in an active CME window).

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Configuration Type

CME Online Help

Single configuration

CME Management > CME Guidelines > Getting Started with the CME > Introduction Introduction to Data Configuration Operations

Batch eGBTS configuration

CME Management > CME Guidelines > GSM Application Management > Base Station Related Operations > Importing and Exporting eGBTS Data for Batch Reconfiguration

Batch NodeB configuration

CME Management > CME Guidelines > UMTS Application Management > NodeB Related Operations > Importing and Exporting NodeB Data for Batch Configuration

Batch eNodeB configuration

CME Management > CME Guidelines > LTE Application Management > eNodeB Related Operations > Importing and Exporting eNodeB Data for Batch Configuration


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4.4.2 Activation Verification Checking the License Usage Run the eNodeB MML command DSP LICINFO to query the license usage of this feature. If the license usage is not 0, this feature has taken effect on the LTE LTE side.

Observing Counters View View related counters on the eNodeB to check whether this feature has taken effect on the LTE side. This feature has taken effect if the following counters are equal to the numbers of RBs reserved in the downlink and uplink, respectively: l

L.ChMeas.PRB.DL.Avail (counter ID: 1526728433)

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L.ChMeas.PRB.UL.Avail (counter ID: 1526728434) NOTE

The numbers of RBs reserved in the downlink and uplink are configured in the ULSPECTRUMSHRCONFIG MO.

4.4.3 Network Monitoring Observe the values of counters described in 4.2 Network Analysis after this feature is enabled.

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5 Glossary

5

Glossary

For the acronyms, abbreviations, terms, and definitions, see Glossary. Glossary.

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6 Reference Documents

6

Reference Documents

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Feature parameter description documents in eRAN Feature Documentation

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eMTC Feature Parameter Description

Self-Optimization Feature Feature Parameter Description Description – PCI Conflict Detection and Self-Optimization

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CPRI Compression Feature Parameter Description

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eMBMS Feature Parameter Description

Feature Parameter Description – MIMO Feature

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Carrier Aggregation Feature Parameter Description

– LCS Feature Parameter Description – Modulation Schemes Feature Feature Parameter Parameter Description –

Overview of Mobility Management in Connected Mode Feature Parameter Description

– NB-IoT Radio and Performance Performance Basics Feature Feature Parameter Description Description – Adaptive ICIC Feature Feature Parameter Description Description –

UL Refarming Zero Bufferzone Feature Parameter Description

Resource Management Feature Feature Parameter Parameter Description – Physical Channel Resource l

GU 900 MHz Non-standard Frequency Spacing Feature Parameter Description in Description in RAN RAN Feature Documentation Documentation

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BBU Hardware Hardware Description in Description in 3900 Series Base Station Product Documentation

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BBU5900 Hardware Hardware Description Description in in 5900 Series Base Station Product Documentation

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UMTS and LTE Spectrum Sharing(SRAN13.0 01)

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