資料成果諾基亞cell bandwidths3mhz and14

1、1 Nokia Siemens Networks 2012For internal useMBB CS Network Engineering / Pawel Gorzelewski1 Nokia Siemens Networks 2012Network Engineering InformationPawe GorzelewskiMN CS Network EngineeringWrocaw, 20.06.2016 (with LTE2927 update from 26.10.2017)LTE2927 Changed feature restriction policy for 1.4 M

2、Hz and 3 MHzFL18The latest version of this NEI can be found here2 Nokia Siemens Networks 2012For internal useMBB CS Network Engineering / Pawel GorzelewskiDisclaimerATTENTION:- Please note that NEI materials are FOR INTERNAL USE ONLY. If they shall be used as source for customer presentation, it is

3、mandatory to align the contents with the Product Management and/on local sales teams first!3 Nokia Siemens Networks 2012For internal useMBB CS Network Engineering / Pawel GorzelewskiClick above to learn why the listed features were combined in this NEI complex and what they have in common. Main Menu

4、LTE116 Cell bandwidth 3 MHzNEI Complex IntroductionHistory and AcknowledgmentsLTE117 Cell bandwidth 1.4 MHzClick above to see the entire set of NEI and NEI complexes Network Engineering has already createdNEI Complex Reference TableLTE2927 Changed feature restriction policy for 1.4 MHz and 3 MHz4 No

5、kia Siemens Networks 2012For internal useMBB CS Network Engineering / Pawel GorzelewskiHistory and AcknowledgementsHistoryOpen IssuesItemOpen Item DescriptionStatus / CommentsVersionsDateReason for Update0.103.06.2013Draft version for review1.012.06.2013Comments gathered during review phase included

6、1.105.09.2013Included CRL10841.209.04.2014Included LTERLCR-21212.026.10.2017Content extended by LTE2927 partAcknowledgements-Main Menu5 Nokia Siemens Networks 2012For internal useMBB CS Network Engineering / Pawel GorzelewskiMain MenuThis complex describes shortly features introducing narrow LTE cha

7、nnel bandwidths in RL50 software release:LTE116 Cell Bandwidth 3 MHzLTE117 Cell Bandwidth 1.4 MHzThe use of the narrow LTE cell bandwidths gives to the operators greater flexibility to re-use existing bands, or co-site LTE with already existing technologies where the operator has limited spectrum av

8、ailable for upgrading to LTEMaterial covers key parameters configuration aspects and constraints along with features impact on dimensioning and performance requirementsNEI Complex IntroductionLTE cell bandwidths 3 MHz and 1.4 MHz LTE116, LTE117Table of Contents6 Nokia Siemens Networks 2012Main MenuF

9、or internal useLTE116Cell Bandwidth 3 MHz7 Nokia Siemens Networks 2012For internal useMBB CS Network Engineering / Pawel GorzelewskiLTE116 Cell bandwidth 3 MHzTable of Contents1Introduction Motivation and Feature OverviewMain MenuNEI Contact: Pawel Gorzelewski3InterdependenciesInterdependencies with

10、 Other Features and Functions2Technical DetailsFunctionality and Implementation, Message Flows7Dimensioning AspectsDimensioning Impacts and Examples4Benefits and GainsSimulation, Lab and Field Findings5Configuration ManagementParameters and Parameterisation scenarios8Performance AspectsCounters and

11、KPIs, Feature Impact Analysis and Verification6Deployment AspectsActivation, Configuration Examples, Fault Mgmt, Trial Area8 Nokia Siemens Networks 2012For internal useMBB CS Network Engineering / Pawel Gorzelewski1LTE116 Cell bandwidth 3 MHzTable of ContentsIntroduction Motivation and Feature Overv

12、iewMain Menu3InterdependenciesInterdependencies with Other Features and Functions2Technical DetailsFunctionality and Implementation, Message Flows7Dimensioning AspectsDimensioning Impacts and Examples4Benefits and GainsSimulation, Lab and Field Findings5Configuration ManagementParameters and Paramet

13、erisation scenarios6Deployment AspectsActivation, Configuration Examples, Fault Mgmt, Trial AreaNEI Contact: Pawel Gorzelewski8Performance AspectsCounters and KPIs, Feature Impact Analysis and Verification9 Nokia Siemens Networks 2012For internal useMBB CS Network Engineering / Pawel GorzelewskiMain

14、 MenuNarrow channel bandwidth of 3 MHz gives a possibility of flexible multi-technology deployments for example during GSM to LTE frequency refarming processLimited number of available resources (only 15 PRBs) has significant impact on the achievable peak data rates and average capacityActual channe

15、l bandwidth for the transmission is 2.7 MHzIntroductionLTE116 Cell bandwidth 3 MHzTable of ContentsChannel bandwidthPRB 1PRB 2PRB 3PRB 4PRB 5PRB 6PRB 7PRB 8PRB 9PRB 10PRB 11PRB 12PRB 13PRB 14PRB 0Transmission bandwidth10 Nokia Siemens Networks 2012For internal useMBB CS Network Engineering / Pawel G

16、orzelewskiLTE116 Cell bandwidth 3 MHzTable of Contents1Introduction Motivation and Feature OverviewMain Menu3InterdependenciesInterdependencies with Other Features and Functions2Technical DetailsFunctionality and Implementation, Message Flows7Dimensioning AspectsDimensioning Impacts and Examples4Ben

17、efits and GainsSimulation, Lab and Field Findings5Configuration ManagementParameters and Parameterisation scenarios6Deployment AspectsActivation, Configuration Examples, Fault Mgmt, Trial AreaNEI Contact: Pawel Gorzelewski8Performance AspectsCounters and KPIs, Feature Impact Analysis and Verificatio

18、n11 Nokia Siemens Networks 2012For internal useMBB CS Network Engineering / Pawel GorzelewskiMain MenuDependency table:Technical DetailsLTE116 Cell bandwidth 3 MHzTable of ContentsFlexiZone MicroFZM releaseeNB (FZM)NetAct (FZM)Release/versionN/AN/AN/AFD-LTERL releaseeNBNetActRelease/versionRL50LBTS5

19、.0OSS5.5TD-LTETD LTE releaseeNB (TD LTE)NetAct (TD LTE)Release/versionN/AN/AN/AHW & IOTHW requirementsMMESAE GWUERelease/versionFSM rel. 3N/AN/AN/A12 Nokia Siemens Networks 2012For internal useMBB CS Network Engineering / Pawel GorzelewskiMain MenuTechnical DetailsLTE116 Cell bandwidth 3 MHz DL

20、resource gridTable of ContentsReduced PDCCH and PDSCH capacity due to the lower number of available PRBsdlChBw = 30 (3 MHz)maxNrSymPdcch = 3pdcchAlpha = 1Exemplary configurationpdcchAgg = 8phichDur = 0 (normal)phichRes = 0 (N=1/6)13 Nokia Siemens Networks 2012For internal useMBB CS Network Engineeri

21、ng / Pawel GorzelewskiMain MenuTechnical DetailsLTE116 Cell bandwidth 3 MHz UL resource gridTable of ContentsExemplary configurationulChBw = 30 (3MHz)nCqiRb = 1prachConfIndex = 3prachFreqOffset = 1deltaPucchShift = 1n1PucchAn = 24blankedPucch = 0cqiAperEnable = falsecqiPerNp = 3 (20ms)Reduced PUCCH

22、and PUSCH capacity due to the lower number of available PRBs14 Nokia Siemens Networks 2012For internal useMBB CS Network Engineering / Pawel GorzelewskiMain MenupdcchAlpha = 0.8pdcchAlpha = 1Maximum 3 OFDMA symbols can be configured for PDCCH (the same as for wider bandwidths maxNrSymPdcch = 3) feat

23、ure LTE616 Usage based PDCCH adaptation is supportedTwelve Control Channel Elements (CCEs) available in PDCCH (maxNumOfCce = 12) when there are 3 PDCCH symbolsAll Aggregation Levels (1, 2, 4, 8) are supportedReduced number of resources leads to the higher scheduler blocking ratio (effect can be redu

24、ced by changing pdcchAlpha value from its default to 1 in the cost of higher hash blocking probability)Technical DetailsLTE116 Cell bandwidth 3 MHz PDCCHTable of Contents15 Nokia Siemens Networks 2012For internal useMBB CS Network Engineering / Pawel GorzelewskiMain MenuTwo Physical Resource Blocks

25、(PRBs) are always reserved for PUCCH:1 PRB for PUCCH formats 1/1a/1b1 PRB for PUCCH formats 2/2a/2b (nCqiRb = 1)Maximum number of supported users is equal to 120Technical DetailsLTE116 Cell bandwidth 3 MHz PUCCH Table of Contents16 Nokia Siemens Networks 2012For internal useMBB CS Network Engineerin

26、g / Pawel GorzelewskiMain MenuAssumed performance requirements for 3 MHz channel bandwidthTechnical DetailsLTE116 Cell bandwidth 3 MHz General requirementsTable of ContentsMaximum number of supported Connected Users per cellConnected User in RRC_Connected state with at least one DRB established (wit

27、h or without data in buffer)120Maximum number of supported Connected Users per eNB (3 cells)Connected User in RRC_Connected state with at least one DRB established (with or without data in buffer)360Peak FTP UL data rate Ideal radio conditions (1% BLER), MCS24 (16QAM), 2PRBs for PUCCH, 10ms PRACH fr

28、equency5.84 MbpsPeak FTP DL data rateIdeal radio conditions (1% BLER), 64QAM, 3 PDCCH symbols, 1Tx-2Rx SIMO8.62 MbpsPeak FTP DL data rateIdeal radio conditions (1% BLER), 64QAM, 3 PDCCH symbols, 2Tx-2Rx MIMO17.24 Mbps17 Nokia Siemens Networks 2012For internal useMBB CS Network Engineering / Pawel Go

29、rzelewskiLTE116 Cell bandwidth 3 MHzTable of Contents1Introduction Motivation and Feature OverviewMain Menu3InterdependenciesInterdependencies with Other Features and Functions2Technical DetailsFunctionality and Implementation, Message Flows7Dimensioning AspectsDimensioning Impacts and Examples4Bene

30、fits and GainsSimulation, Lab and Field Findings5Configuration ManagementParameters and Parameterisation scenarios6Deployment AspectsActivation, Configuration Examples, Fault Mgmt, Trial AreaNEI Contact: Pawel Gorzelewski8Performance AspectsCounters and KPIs, Feature Impact Analysis and Verification

31、18 Nokia Siemens Networks 2012For internal useMBB CS Network Engineering / Pawel GorzelewskiMain MenuInterdependenciesLTE116 Cell bandwidth 3 MHzTable of ContentsLTE10Support of EPS bearers for conversational voice* Feature cannot/must not work/be activated together with the main feature * Impact of

32、 the main feature, e.g. in some specific scenariosLTE4MOCNLTE497Smart admission controlLTE767Support of aperiodic CQI reportsLTE786Flexible uplink bandwidthLTE872SRVCC to WCDMALTE873SRVCC to GSMLTE907TTI bundlingLTE980IRC for 4Rx pathsLTE1089Carrier aggregationLTE56, LTE736WCDMA interworkingLTE426,

33、LTE807, LTE870CDMA interworkingLTE1387Intra-eNode B IF Load Balancing LTE471LTE dual carrier operation within one RF bandLTE442Network assisted cell change to GSMLTE984GSM redirect with system informationLTE13Rate cappingLTE11Robust header compressionLTE619Interference aware scheduling (UL)LTE587Mul

34、tiple GBR EPS bearers per UELTE572IMS emergency sessionsLTE568DL adaptive closed loop MIMO 4x2LTE534ARP based admission control for E-RABsLTE496Support of QCI 2,3 and 4LTE495OTDOALTE435RF sharing WCDMA - LTELTE724-way Rx diversityLTE46Channel aware scheduling (UL)LTE39System information broadcastLTE

35、82High capacity Flexi System Module FSMELTE40Physical and transport channelsLTE49PagingLTE762Idle mode mobility to WCDMA, GSM, LTELTE1170Inter-eNode B IF Load Balancing19 Nokia Siemens Networks 2012For internal useMBB CS Network Engineering / Pawel GorzelewskiMain MenuLimited number of resources in

36、3 MHz channel introduces some restrictions to System Information Broadcast:SIB messages 6, 9 and 13, 14 are not supported (no idle mode mobility to UTRA SIB6)no SIB messages are allowed in subframes #0 and #5subframe #5 can be used only for SIB1 message transmissionmaximum length of warning messages

37、 (SIB11 and SIB12) is restricted to 1600 bytes:all longer messages will be cut down not to exceed allowed 1600 bytes and then transmitted without any additional constraintshardcoded value (well above the current needs see footnotes)in case the SIB message is too large to meet the Code Rate assumptio

38、n (set by the parameter maxCrSibDl) it will be retransmitted:only once during the SI window (all SIB messages excluding SIB11 and SIB12)as many times as required to meet the Code Rate assumption in case of SIB11 and SIB12recommended setting for all supported SIBs: siMessageRepetition = 1siMessagePer

39、iodicity = 160 msInterdependenciesLTE116 Cell bandwidth 3 MHzTable of Contents20 Nokia Siemens Networks 2012For internal useMBB CS Network Engineering / Pawel GorzelewskiMain MenuLower number of available resources in 3 MHz cell bandwidth causes that the target paging Code Rate (defined by the param

40、eter maxCrPgDl) can be achieved for the lower number of paging records than in case of wider channel bandwidthsone paging record shall always be transmitted even if the configured Code Rate limit can not be reachedExemplary maximum number of paging records that can be transmitted with respect to the

41、 configured Code Rate:In LTE networks with different cell bandwidths the number of paging records to be used in the whole network has to comply with the lowest available cell bandwidthInterdependenciesLTE116 Cell bandwidth 3 MHzTable of ContentsCode Rate(maxCrPgDl)Resulting bitsMaximum number of pag

42、ing records (using S-TMSI)0.0720840.12 (default value)3367 (16 in case of 10MHz)0.18552120.226961621 Nokia Siemens Networks 2012For internal useMBB CS Network Engineering / Pawel GorzelewskiMain MenuConfiguring 3 MHz channel bandwidth impacts overall system configuration:Features activationSystem In

43、formation Broadcast (SIB)PDCCHAggregation level of Control Channel Elements (CCEs)Allocation limitPUCCHNumber of PRBs for PUCCH Formats 1/1a/1b and 2/2a/2bCQI reporting periodDelta cyclic shiftACK/NACK offsetPRACHFrequency offsetFor more details please refer to the slide 26InterdependenciesLTE116 Ce

44、ll bandwidth 3 MHzTable of Contents22 Nokia Siemens Networks 2012For internal useMBB CS Network Engineering / Pawel GorzelewskiLTE116 Cell bandwidth 3 MHzTable of Contents1Introduction Motivation and Feature OverviewMain Menu3InterdependenciesInterdependencies with Other Features and Functions2Techn

45、ical DetailsFunctionality and Implementation, Message Flows7Dimensioning AspectsDimensioning Impacts and Examples4Benefits and GainsSimulation, Lab and Field Findings5Configuration ManagementParameters and Parameterisation scenarios6Deployment AspectsActivation, Configuration Examples, Fault Mgmt, T

46、rial AreaNEI Contact: Pawel Gorzelewski8Performance AspectsCounters and KPIs, Feature Impact Analysis and Verification23 Nokia Siemens Networks 2012For internal useMBB CS Network Engineering / Pawel GorzelewskiMain MenuIntroducing 3 MHz channel bandwidth gives a possibility of more flexible frequenc

47、y allocation:Frequency refarming process allows for a smooth ramp-down of a legacy GSM system with simultaneous ramp-up of the LTEPossibility of gradual increase of supported LTE bandwidth: 3 MHz 5 MHz or higherUtilising narrow spectrum bands that would not be sufficient for any other systems assuri

48、ng coverage supporting low data rate servicesFor example available bandwidth narrower than 5 MHz no possibility of deploying 3G network (5 MHz) its is better for customer to have 3 MHz LTE than nothingBenefits and GainsLTE116 Cell bandwidth 3 MHzTable of Contents24 Nokia Siemens Networks 2012For int

49、ernal useMBB CS Network Engineering / Pawel GorzelewskiLTE116 Cell bandwidth 3 MHzTable of Contents1Introduction Motivation and Feature OverviewMain Menu3InterdependenciesInterdependencies with Other Features and Functions2Technical DetailsFunctionality and Implementation, Message Flows7Dimensioning

50、 AspectsDimensioning Impacts and Examples4Benefits and GainsSimulation, Lab and Field Findings5Configuration ManagementParameters and Parameterisation scenarios6Deployment AspectsActivation, Configuration Examples, Fault Mgmt, Trial AreaNEI Contact: Pawel Gorzelewski8Performance AspectsCounters and

51、KPIs, Feature Impact Analysis and Verification25 Nokia Siemens Networks 2012For internal useMBB CS Network Engineering / Pawel GorzelewskiMain Menu-The Basic Parameters category contains primary parameters which should be considered during cell deployment and must be adjusted to a particular scenari

52、o. These are:-Network Element (NE) identifiers-Planning parameters, e.g. neighbour definitions, frequency, scrambling codes, PCI, RA preambles-Parameters that are the outcome from dimensioning, i.e. basic parameters defining amount of resources-Basic parameters activating basic functionalities, e.g.

53、 power control, admission control, handovers-Parameters defining operators strategy, e.g. traffic steering, thresholds for power control, handovers, cell reselections, basic parameters defining feature behaviour-The Advanced Parameters category contains the parameters for network optimisation and fi

54、ne tuning:-Decent network performance should be achieved without tuning these parameters-Universal defaults ensuring decent network performance need to be defined for all parameters of this category. If this is not possible for a given parameter it must be put to the Basic Parameters category-Parame

55、ters requiring detailed system knowledge and broad experience unless rules for the Basic Parameters category are violated-All parameters (even without defaults) related to advanced and very complex featuresPurpose: Categories of parameters have been defined to simplify network parameterization. Para

56、meterization effort shall be focused mainly on parameters included in basic category. Categorization will be reflected in a view definition in NetAct CM Editor (planned in RL60) i.e. parameters will be displayed according to the category: either in the Basic parameters view or the Advanced parameter

57、s view.Configuration ManagementLTE116 Cell bandwidth 3 MHzTable of ContentsDefinition of terms and rules for parameter classification26 Nokia Siemens Networks 2012For internal useMBB CS Network Engineering / Pawel GorzelewskiMain MenuRange of parameter dlChBw was extended to allow the 1.4 and 3 MHz

58、cell bandwidth configurationENUM values of the parameter were changed comparing to RL40 releaseConfiguration ManagementLTE116 Cell bandwidth 3 MHzTable of ContentsdlChBwDownlink channel bandwidthObject:LNCELRange:14, 30, 50, 100, 150, 200Step: -Default: 100 (10 MHz)Multiplicity: 1Unit: -Category: BA

59、SICDownlink channel bandwidth parameter defines the DL bandwidth for the eNode-B transmission in a cell and as a result the number of available Physical Resource Blocks for the configuration dlChBw = 30 (3 MHz) number of available DL PRBs is 15. All LNCEL instances of the eNB must be configured with

60、 the same channel bandwidth.Values of dlChBw and ulChBw must be identical per LNCEL instance.Setting the dlChBw parameters value to 30 (3 MHz) brings multiple restrictions to the other parameters:27 Nokia Siemens Networks 2012For internal useMBB CS Network Engineering / Pawel GorzelewskiMain MenuRange o