华为G使能新一代SON英文版

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4、SCO.LTD BE LIABLE FOR ANY SPECWt INCICtNTAl, IbDIHfCT, OR CONSEQUENTWL IWAAG$ OK LOST PWfTS. BUSIMFSS. RSVEMJE. DATA, GOODWILL OR ANTOPATCD SAMNGS ARISING CUT OF OR IN CONNSCTlOk V.1TH THE USE O TH5 MANUAL.典HUAWGINext Generation SON for 5GWhite Paper by TELUS and HuaweiNext Gen eratio n SON for 5GNe

5、xt Gen eratio n SON for 5GContents02O Executive SummaryO Objectives of the NG SON032.1 Bridging the Gap between the 3GPP and Daily Operation 032.2 Enabling Cloud RAN042.3 Improving O&M Efficiency052.4 Further Automating the O&M Tasks062.5 Buildiging a SON Friendly 5G Solution07O What is NG SONos3.1

6、Built-In Capability from Day One2.2 Enabling Cloud RAN083.2 Full Automation of Network Deployment and Operation093.3 Multidimensional Accurate Self-Optimization103.4 Advanced Architecture1112O ConclusionExecutive SummaryObjectives of the NG SONExecutive SummaryObjectives of the NG SONIt has been alm

7、ost a decade since the concept of Furthermore, the adoption of SON has been slowedSelf-Orga nizing Networks (SON) was in troduced bydow n because it was always see n as an opti on al/the Next Gen erati on Mobile Networks (NGMN), andcompleme ntary solution to the existi ng RAN ratherwas subseque ntly

8、 sta ndardized by 3GPP along withtha n its in tegral part.the Long Term Evolutio n (LTE) n etwork. However,Our visio n is that the Next Gen eration (NG) SONdespite having gained much attention initially, SONhould be considered as an integral part of future has not yet fully delivered on the expectat

9、i on the wireless n etworks in cludi ng 5G, not just an add-on operators were hav ing since its in cepti on.feature, and as such, n eeds to be carefully desig nedOrigi nally, the mai n expectati on was that SON wouldtogether with the other n etwork features. The NGautomate the Operati on and Mainten

10、ance (O&M)SON n eeds to be developed to maximize automati onof cellular n etworks to help operators improve of all the aspects of the O&M tasks, with clearlyn etwork?ecie ncy and performa nee. In practice,de? ned in puts and outputs. Moreover, the NG SONshould also en able Cloud RAN and 5G to en sur

11、eon several use cases affect ing the Radio AccessSON implementation has been primarily focusedsusta in able n etwork developme nt. Thanks to the everNetwork (RAN), and has not been a part of an end-increasing measurement and processing capabilities, to-end solution. Some SON functions, such as the N

12、G SON should allow not only high level (cell or Automatic Neighbour Relati on (ANR) and Plug an dcluster scale) sce nario-based optimizati on, but also Play (Pn P), have bee n deployed by the operators accurate optimizationnesr acale, such as grid brought gains. However, the standardization efforlev

13、el (smaller than a cell scale) and user group level on SON so far has been mainly focused on a limite(dervice of capability level).set of use cases an d?oTingelhe in terfaces.The main purpose of the NG SON should be to greatlyTmpenvy! andO&lM operatorskeep pace with the complexity of fast evolv ing

14、wireless n etworks. Additi on ally, the NG SON should sig? can tly enhance n etwork performa nee through self-orga nizing in tellige nee.2.1 Bridgi ng the Gap betwee nthe 3GPP and Daily OperationThe NGMN identiSON as a key design princiert of its full potential. Namely, SON currently only for LTE n

15、etwork back in 2007, and published addresses several use cases and is viewed as an technical s0ecition paper in 2008. Following optional element in the sEouHBHi .the promise that, SON was in troduced in 3GPP Release 8 of self-orga ni zed and self-optimized n etworks, and has been further extended in

16、 subsequence need a complete solution that can make use releases to en able NGMfeddusei cases. of all the available in formati on to automate the Some SON fun cti ons, such as ANR, have alrpadn ing, optimizati on and maintenan ce. Therefore, dem on strated their useful ness by elimi natiiigsttesse n

17、tial that the NG SON be developed as an n eed for man ual list gen erati on.in tegral part of the n ext gen erati on wireless n etwork.With that said, the 3GRSctlSON still falls一2 Note: thisgure is only for illustration purposeThis improved user experie nee will be en ablebhcreased n umber of antenn

18、asby the in troducti on of new radio tra nsmissi onMultiple In put Multiple Output (MIMO) antenna is a The cloud-computirtech no logies that will in crease the spectrum key tech no logy to boost spectencyeA low automatic scali nge? cie ncy and offer higher data rates. However, order, 2T2R MIMO is th

19、e basicacontotlaytoquickly respo nd tothis will come at the cost of increased networkLTE n etwork. Some operators have already deployed The guid ing prin，complexity due to the followi ng:4T4R and even 8T8R in some special scenarios that it must be able toIn creased n umber of carriers(i.e., TDD-LTE)

20、 to improve spectmcyn ef accurately or trigger aMore radio carriers are required to in crease the future, it is expected that large scale antennadatarate. The industry and 3GPP are already systems, a.k.a. massive MIMO will require many moretargeti ng higher freque ncy ban ds, such as thiosen na elem

21、e nt. The in creased n umber of antennasabove 6 GHz, which provide larger ban dwidthor differe nt bands and higher MIMO order willin sta nee, whe n smartph ones bega n to in creaseload, which en sures optimal n etwork performa neeIn creased n umber of carriers with differe ntfurther in creases the n

22、 etwork complexity.in popularity, UMTS n etworks were overwhelmed whe n tfefc volume in creases, by huge signaling storms from various InstantMessaging (IM) applications and keep-alivesignaling that produce frequent4 channel bandwidths, and different propagationlosses (and consequently different cov

23、erages) willin crease n etwork man ageme nt complexity, detecti on related 5Next Gen eratio n SON for 5GNext Gen eratio n SON for 5GObjectives of the NG SONIn creased n umber of sitesWhe n high freque ncy bands are used, cell coverage decreases due to larger propagati on loss, and more sites are req

24、uired to cover the same area compared to low freque ncy ban ds. In additi on, operators may want to take adva ntage of smaller cell coverage to expa nd n etwork capacity through spectrum reuse.In either sce nario, the n etwork complexity grows due to the n eed to coord in ate tran smissi on and avoi

25、d interference among the cells.In creased n umber of RAN features and parametersNew tech nologies, services, and RAN features and parameters are in troduced at an ever in creas ing pace Furthermore, ?hepater ns are noObjectives of the NG SONLimited or decreasi ng CAPEX/OPEX2.4 Further Automat ing th

26、e O&M TasksWireless n etwork O&M tasks can be divided into? ve stages:n etworks periodically.longer static, and change frequently both in timeand over differe nt geographic lTbist ion s.imposes more pressure on O&M as it makes itmore dWult to monitor and optimize a largern umber of parameters at an

27、in creased freque ncy.Additi on ally, the coexiste nce of multipletech no logies, differe nt applicati ons andheteroge neous n etwork architectures will furtherin crease the n etwork complexity.On the other hand, the reve nue growth for anoperator does not match the n etwork complexity growth, thus

28、limit ing the amou nt of budgetallocated for network CAPEX and OPEX. Therefore, a much higher O&Meifcy is critical tomaintain a susta in able bus in ess.Network ComplexityIn creases Exponen tiallyArchitecturesApplicationsMulti-Technologiesimplementation a?(taein of the desig ns.Optimizati on: optimi

29、zati on of legacy or newIn the in itial pla nning stage, only some works hjpmuent and in stallati on cannot be automatedas coverage predicti on and capacity predictionrough SON, whereas other tasks, in clud ingcan be automated through SON. All other tasdaftware commissior?ngiu raoion scripti ng, and

30、such as site selection, rent, transport, facilityfunction veciation, can be automated.check, and base stati on type (macro or microThe optimizati on stage has the highest pote ntialselection, still require manual operation. to be completed through SON, while at the sameIn the detailed desig n stage,

31、 most desig ns,time it prese nts the biggest challe nge to running aparticularly RF parameter design (e.g., Cell IDuccessful network. Majority of the optimization workpower levels, cha n?ejicoiti on s), can be is based on measureme nts and n etwork parameteraccomplished thSOglug and playcha nges, an

32、d can be automated, but requiresfeature. Tran sport and core n etwork desig n couldspecialized expertise and internal RAN desig ve more challe nging due to limitati ons fromIn the maintenance stage, SON mon itors the n etworktran sport n etwork capabilities, such as lack oind equipme nt to det

33、ect faiueseatnd efplug and play support. In additi on, facility andrec? es each detected failure either by in dicat ingbuildi ng desig n still require man ual operatioasieed for a software cha nge or for a hardwareIn l&C stage, some tasks such as hardwarereplaceme nt.In itial pla nningTotal workMain

34、tenanceTotal workSON pote ntialCurre nt SONOptimizatio nI&C25 Buildiging a SON Friendly 5G Solutio nSome early SON fun cti ons emerged from 3Gmore Tran smissi on Poi nts and much higher MIMOn etworks such as UMTS and more SON fun cttoBs. This will require in creased coord in ati onhave bee n in clud

35、ed in 4G. While, SON is still Eartwee n the sites and in creased n umber offrom being able to take con trol of the wirelessech no logies. Therefore, the 5G n etwortiawpllannsieig: decidi ng the high level n etworkstati onMaintenance: maintenance of network andequipme ntBy taking a closer look at 俯ea

36、ptedtiescor? gurations and RF features.required at each stage, we can get a better ideaInstallation &Commissioning (l&C):on how much work can be automated.6 Next Gen eratio n SON for 5GNext Gen eratio n SON for 5Gnetwork manageirtn0ht|osophy of self-big operational challteTiges.view, the NG SON desi

37、gn, including site selection and baseorga nizing does show a big pote ntial for futuioeill be a key tech no logy for operators to address type selecti on.even more complicated networks, such as 5G6uch challenges. It will not only be anDetendubaiigcffi: rdeg the detailed siteIt is anticipated that 5G

38、 will have much highemandatory part of 5G, but also it will also be a keyaggregated bandwidth, larger frequency ranabler for 5G success.and thus larger variety of cell coverages, many7What is NG SONWhat is NG SONWhat is NG SONFuture 3GPP releaseS?meede n morepoi nts (APs) and to report the mon itori

39、 ng in formatio ne? cie nt measureme nt procedures for UEs tofor optimal decisi on mak ing.monitor all neighboring frequencies and accessThe Next Generation SON should have the capability of full awareness of current status and the ongoing cha nges, the ability to do n ecessary an alysis to determ i

40、ne optimal n etwork parameter TWhat is NG SONvalues, and the ability to impleme nt the n etwork adjustme nt, and thus mini mize the huma nintervention as much as possible, and also to provide network maintenance in an optimal and timely fashi on.Same coverageCross-coverage3.1 Built-In Capability fro

41、m Day OneCompleme ntary coverageUn derlay/overlayHetNetWhat is NG SONMost traditi onal RAN features require man ual operati ons to optimize parameters that become non-optimal as the n etwork con diti ons cha nge over time.Future n etwork should work in a self-orga ni zed mann eT.his requires a fun d

42、ame ntal cha nge of the way we desig n and develop the n etwork products. The ability of self-pla nning, gefcion and self-optimization will need to be considered from day one of any RAN feature desig n. Thus, the SON fun cti on ality should be one of the key requireme nts for system desig n.? Design

43、 for SONAll future RAN features are expected to have the following capabilities:-Self-pla nningEach RAN feature can evaluate whether it applies to the current scenario, namely, whether it is adva ntageous to en able the feature. Each RANin formatio n excha nge, or work with a site for joi nttran smi

44、ssi on or recepti on.-Self-optimizatio nEach RAN feature is able to monitor its ownperforma nee, as well as to evaluate whether it is work ing properly and whether any adjustme nt isneeded.? Self-Aware ness of Cell TopologyA number of RAN features depend on celltopologies. Take the UMTS blind handov

45、erfun cti on as an example. This fun cti on applies only to co-coverage cell topology. The evoluti on to 4.5G and 5G has made coord in ati on betwee n cells increasingly important. Different coord ination policies may be adopted to adapt to differe nt topologies. It would be time-c on sum ing for en

46、gin eers to man ulgicenthese topologies. Powerful UE capabilities and high speed conn ecti ons in LTE en able operators to collectfeature can also decide whe n and where it n eeds tobe en abled and disabled.-Self-corgurati onAfter enabling itself, each RAN feature can complete n ecessaccat ions with

47、out any man ual operati ons. For example, the feature does not n eed to associate witc spghbor inga large amou nt of n etwork measureme nt data, which helps ide ntify cell topologies.In additi on, the cen tralized man ageme nt fun cti on of SON en ables operators to use detailed co? gurations of cel

48、lular networks to identify cell topologies.cells, set up an IP conn ecti on with a site for3.2 Full Automation of Network Deployme nt and Operatio nIn 5G Visi on publicati on by 5G-PPP, it was staitstnated through SON, complefhEieteyby efthat the target 5G adva nee is to have 1/5 X irimproveme nts b

49、rougHFV)a nd SDN.n etwork man ageme nt operati onal expe ndituEach of t?e stages of n etwork O&M tasks canrelative to 2010 levels. To achieve 1/5 OPEX, all thebe subjected to various degrees of automati on, astasks with clear in puts and outputs n eeds to beillustrated in Figure 3-1 below.Automation

50、 LevelCoverage & Capacity PlanningMost of the parameter design could be automatedLegend:Highly Automated Partially AutoPara Auto PlanningPnP auto configureAuto TiltANRuto DriveAuto Optimization(PCI, CCO, MLB,eighbor, ParaAuto Call-P TestSite SelectionEvent/StrategicPlanningInitial PlanningName/ID DesignTransport /FacilityDesignShipment, building, InstallationDetail DesignInstallation &Commission2口. A