Huawei LTE Downlink Throughput Parameters Parameter/Counter MO/Feature Impact on Throughput MML to Implement Controls PDCCH PDCCH Symbol Number CELL capacity which SET CELLALGOSWITCH affects scheduling PDCCHSYMNUM=3 capability CQI Adjustment MCS High Level CA Configuration Transport Block Size Factor RB Scheduling Strategy MIMO Mode PMI Feedback PDSCH Resource Allocation DL Power Boost Rank Indicator Override CELL CELL CELL Optimizes MCS SET CQIADJUST CELLID=x selection accuracy CQIAdj=2 Sets maximum modulation scheme Enables carrier aggregation Maps resource CELL blocks to bit capacity CELL CELL CELL CELL CELL CELL Determines PRB allocation method Positive and Negative Impact on KPIs (+) Scheduling capacity, (-) Reduces PDSCH resources (+) Improves BLER, (-) Conservative settings reduce throughput SET CELLMIMOPARA (+) Peak throughput, (-) CELLID=x May increase BLER if too MaxMCSHighLevel=28 high SET CACFG CELLID=x (+) Overall throughput, CASCENARIO=INTER (-) Higher UE power CATYPE=EN consumption (+) Directly impacts SET TBSFACTOR CELLID=x maximum data rate, (-) TBSFACTOR=1.0 May increase HARQ retransmissions SET SCHEDULESWITCH CELLID=x SCHEDSTRATEGY=PF (+) User fairness/throughput balance, (-) May reduce peak rates Sets spatial SET MIMOMODE (+) Throughput via multiplexing CELLID=x spatial streams, (-) capabilities MIMOMODE=CL-MIMO Processing overhead Controls UE channel SET PMIFEEDBACK (+) MIMO efficiency, (-) feedback CELLID=x ENABLE=TRUE Signaling overhead Configures PDSCH SET CELLPARALOCK (+) Coverage or resource CELLID=x capacity, (-) Control/data distribution PDSCHPOWER=8 channel tradeoff SET POWERBOOST (+) Cell edge CELLID=x throughput, (-) Increases PDSCHBOOST=2 interference Forces specific SET RIOVERRIDE CELLID=x (+) MIMO stability, (-) MIMO rank ENABLE=TRUE RI=2 Suboptimal for some RF Increases specific channel power Parameter/Counter MO/Feature Impact on Throughput MML to Implement Positive and Negative Impact on KPIs conditions RI Thresholds RS Power PA Parameter CELL CELL CELL Controls rank SET RITHRESHOLD adaptation CELLID=x RI1TO2=18 thresholds RI2TO3=24 Reference signal SET RSPOWER CELLID=x power setting RSPOWER=18 Power allocation SET PAPARAM CELLID=x scheme PA=1 Artificial load Virtual Cell Load CELL TDD UL/DL Configuration Special Subframe Configuration CELL CELL CELL CELL Configuration ABS Configuration CELL CELL Higher values reduce PDSCH power (+) Optimizes power distribution, (-) May reduce coverage Intelligent random SET SMARTRACH (+) Access success rate, access control CELLID=x ENABLE=TRUE (-) Can increase latency Frame structure for SET TDDCFG CELLID=x TDD cells ULDLCFG=2 DwPTS/GP/UpPTS SET SPECIALSUBFRAME configuration CELLID=x SSCFG=7 information for interference coordination ICIC Static (+) Cell coverage, (-) limit peak rates Zero-power CSI-RS CELL cause throughput loss CELLID=x VCELLLOAD=20 reference signals ZP CSI-RS Suboptimal settings (+) User fairness, (-) May Channel state CSI-RS Configuration optimization, (-) SET SCHEDPARACFG parameter for scheduling Smart RACH (+) MIMO rank (+) DL capacity with higher DL subframes, (-) Reduces UL capacity (+) DL/UL balance, (-) Transition period overhead SET CSIRSCFG CELLID=x (+) MIMO performance, CSIRSCFGID=0 (-) Overhead on PDSCH SET ZPCSIRSCFG CELLID=x ENABLE=TRUE (+) Interference management, (-) Resource overhead Inter-cell SET ICICSTATIC CELLID=x (+) Cell edge interference RBSTARTPERCENT=0 throughput, (-) Reduces coordination RBENDPERCENT=75 bandwidth utilization SET ABSCFG CELLID=x (+) Small cell ABSENABLE=TRUE throughput, (-) Reduces ABSPATTERN=0x0F0F macro capacity Almost blank subframes Parameter/Counter MO/Feature Impact on Throughput Coordinated CoMP Mode CELL multipoint transmission RRC Inactivity Timer TTI Bundling PDCP Discard Timer HARQ Maximum Retransmissions RLC AM/UM Mode RLC Segmentation GBR Service Flow Priority AMBR Limits UECONN CELL PDCP RLC QOS QOS transitions INACTIMER=10 Transmission time interval bundling QOS CELL TM Mode CELL Configuration CELLID=x TTIENABLE=TRUE SET PDCPDISCARDTIMER discard behavior CELLID=x DLTIMER=200 retransmission Selects RLC mode Positive and Negative Impact on KPIs (+) Cell edge throughput, (-) Backhaul requirements (+) Resource efficiency, (-) State transition overhead (+) Coverage reliability, (-) Resource utilization (+) Resource efficiency, (-) May impact application performance SET HARQMAXRETX (+) Reliability, (-) Higher CELLID=x MAXRETX=4 values increase latency SET RLCMODE CELLID=x MODE=AM (+) Reliability in AM mode, (-) Overhead compared to UM Controls data SET RLCSEGMENT (+) Adaptability to packet CELLID=x conditions, (-) segmentation SEGMENTENABLE=TRUE Processing overhead Guaranteed bit rate SET QOSPRIORITY traffic handling CELLID=x GBRPRIORITY=2 Aggregate SET AMBRLIMITS CELLID=x maximum bit rate UEAMBRDL=20000 class identifier settings DRX Configuration SET TTIBUNDLING Controls packet Quality of service QCI Configuration COMPMODE=JT SET INACTIMER CELLID=x attempts RLC SET COMPCFG CELLID=x Controls UE state Number of CELL MML to Implement SET QCICFG CELLID=x QCI=7 PDCPPRIORITY=5 (+) Service guarantees, (-) Less flexible scheduling (+) Fair resource allocation, (-) Caps peak performance (+) Service differentiation, (-) Complex configuration Discontinuous SET DRXPARAM CELLID=x (+) UE battery life, (-) reception settings ONDURATIONTIMER=20 May increase latency Transmission mode SET TMMODE CELLID=x (+) Appropriate for selection TMMODE=4 conditions, (-) Sub- Parameter/Counter MO/Feature Impact on Throughput MML to Implement Positive and Negative Impact on KPIs optimal modes reduce throughput CQI Reporting Mode CQI Reporting Periodicity PUCCH Resources UL Power Control SRS Configuration LAA/LTE-U Configuration RRU Tx Power Cell Range Extension CELL CELL CELL CELL CELL CELL RRU CELL CQI feedback configuration SET CQIREPORTMODE CELLID=x MODE=WIDEBAND How often UE SET CQIREPORTPERIOD reports CQI CELLID=x PERIOD=10 UL control channel resources Controls UE transmit power conditions, (-) Tradeoff between accuracy and overhead (+) Adaptability to conditions, (-) Signaling overhead SET PUCCHRES CELLID=x (+) UL control channel FORMAT1=36 capacity, (-) Reduces FORMAT3=12 PUSCH resources SET ULPOWERCONTROL CELLID=x P0NOMINAL=-90 Sounding reference SET SRSCFG CELLID=x signal settings ENABLE=TRUE BWCFG=7 License assisted SET LAACFG CELLID=x access settings ENABLE=TRUE Transmitter power SET RRUTXPOWER settings RRUID=x TXPOWER=46 Biases cell selection (+) Optimized for SET CELLRANGE CELLID=x BIAS=6 (+) UL reliability, (-) UE battery consumption (+) UL channel estimation, (-) Overhead on PUSCH (+) Additional spectrum, (-) Coexistence challenges (+) Coverage, (-) Interference to neighbors (+) Load balancing, (-) May degrade user experience (+) Small cell EICIC CELL Enhanced ICIC SET EICIC CELLID=x performance, (-) configuration ENABLE=TRUE Configuration complexity LA (Link Adaptation) Mode CELL Controls MCS SET LAMODE CELLID=x selection approach MODE=OUTER_LOOP (+) Throughput optimization, (-) Sensitivity to conditions Parameter/Counter MO/Feature Impact on Throughput MML to Implement Positive and Negative Impact on KPIs (+) LA Target BLER CELL Target block error SET LABLER CELLID=x Reliability/throughput rate TARGET=0.1 balance, (-) Conservative settings limit throughput Maximum Users per TTI Frequency Selective Scheduling PRB Preferences CELL CELL CELL Limits concurrent SET MAXTTIUSERS users CELLID=x MAXUSERS=12 RB allocation based SET FSSENABLE CELLID=x on channel quality ENABLE=TRUE Configure preferred PRBs (+) Processing efficiency, (-) May create scheduling delays (+) Channel-aware scheduling gains, (-) Scheduling complexity SET PRBPREFERENCE (+) Interference CELLID=x avoidance, (-) Reduced PATTERN=0xFFFF0000 spectrum utilization (+) Controls resource SINR Threshold CELL Signal quality SET SINRTHRESHOLD allocation quality, (-) Too threshold CELLID=x THRESHOLD=10 high reduces scheduling options Modulation Restriction Bandwidth Allocation Priority CELL CELL Restricts highest modulation CELL (+) Stability in poor CELLID=x conditions, (-) Caps peak MAXMOD=64QAM rates Resource allocation SET BWPRIORITY CELLID=x priority PRIORITY=HIGH MAC layer MAC Scheduler Type SET MODRESTRICT scheduling algorithm SET MACSCHED CELLID=x TYPE=ADVANCED (+) Resource allocation control, (-) May cause unfairness (+) Algorithm optimization, (-) Processing requirements Key Use Cases 1. Macro Coverage Optimization Parameters: RS Power, PA Parameter, DL Power Boost, RI Thresholds MML: SET RSPOWER CELLID=x RSPOWER=19 , SET POWERBOOST CELLID=x PDSCHBOOST=2 Scenario: Enhances coverage and throughput for cell edge users in macro deployments 2. High-Density Urban Capacity Enhancement Parameters: PDCCH Symbol Number, MCS High Level, Frequency Selective Scheduling, CA Configuration MML: SET CELLALGOSWITCH PDCCHSYMNUM=2 , SET FSSENABLE CELLID=x ENABLE=TRUE Scenario: Maximizes throughput in areas with high user density and good RF conditions 3. Small Cell Deployment Optimization Parameters: ABS Configuration, EICIC, Cell Range Extension, CoMP Mode MML: SET ABSCFG CELLID=x ABSENABLE=TRUE ABSPATTERN=0x0F0F , SET EICIC CELLID=x ENABLE=TRUE Scenario: Improves HetNet performance with macro and small cell coordination 4. VoLTE Quality Enhancement Parameters: QCI Configuration, HARQ Maximum Retransmissions, RLC Mode MML: SET HARQMAXRETX CELLID=x MAXRETX=6 , SET QCICFG CELLID=x QCI=1 PDCPPRIORITY=1 Scenario: Ensures voice reliability while maintaining data throughput 5. Interference Limited Environment Parameters: ICIC Static Configuration, PRB Preferences, ZP CSI-RS, RI Override MML: SET ICICSTATIC CELLID=x RBSTARTPERCENT=0 RBENDPERCENT=75 , SET ZPCSIRSCFG CELLID=x ENABLE=TRUE Scenario: Mitigates interference in dense urban or high-rise environments 6. Stadium/Venue Optimization Parameters: LA Mode, Maximum Users per TTI, Virtual Cell Load, CQI Reporting Periodicity MML: SET MAXTTIUSERS CELLID=x MAXUSERS=16 , SET CQIREPORTPERIOD CELLID=x PERIOD=5 Scenario: Handles rapid fluctuations in load and maintains throughput during events
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