华为——LTE-SAE TechnologyHuawei Product Roadmap.ppt
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1、T-mobile Austria Huawei Workshop,October 19th 2007,Vienna,AustriaLTE/SAE Technology&Huawei Product Roadmap,Dr.Jingming LI SALINA,Wireless MarketingHUAWEI TECHNOLOGIES CO.,LTD.HUAWEI TECHNOLOGIES CO.,LTD.,Page 1,Y,r,OutlinePart I:LTE/SAE Technology-Maturity-Spectrum-Deployment-Unique value for operat
2、orsPart II:Huawei LTE/SAE Product Developement Plan&Roadmap-Infrastructure-TerminalPart III:LTE/SAE Trial PossibilitiesPart IV:Alternative Technologies,-HSPA+,ea,-mobile WiMAXConclusions,HUAWEI TECHNOLOGIES CO.,LTD.,Page 2,Part I:,LTE/SAE Technology,HUAWEI TECHNOLOGIES CO.,LTD.,Page 3,LTE/SAE Techno
3、logy Maturity LTE(Long Term Evolution),an 3GPP concept,defines a long-term evolution for radioaccess technology.SAE(System Architecture Evolution),an 3GPP concept,defines a long-term evolution forcore network.LTE and SAE have been approached independently,however by enhancing eachother,they are no m
4、ore separable today.Mass deploymentCommercial,Initail studycompleted,Standard aimedto be finalizedStandard aimedto be developed,Trial start,deployment start,2006,2007,2008,2009,2010,2015,Year,Source:3GPP&UMTS-Forum,HUAWEI TECHNOLOGIES CO.,LTD.,Page 4,r,LTE/SAE Technology New Air Interface(2-1)eNodeB
5、System BandwidthSub-carriersSub-frame,E-Packet Core,Time,FrequencyTime frequencyresource for User 1Time frequencyresource for User 2Time frequency,resource for User 3System BandwidthSingle CarrierSub-frameFrequency,DL:OFDMAImproved spectrum efficiency,capacity etc.,Time,Time frequencyresource for Us
6、er 1Time frequencyresource for User 2Time frequency,Yea,UL:SC FDMATechnically similar to OFDMA but better suited for UE for the battery consumption.,resource for User 3,HUAWEI TECHNOLOGIES CO.,LTD.,Page 5,SpatialTimeCoding,SpatialTimeCoding,Source,E-Packet Core,LTE/SAE Technology New Air Interface(2
7、-2)MIMO at both eNode B and UEIncreased user throughout,cell capacity,cell coverage DL MIMODL SU-MIMO 2x2(Spatial multiplexing)DL SU-MIMO 4x2(Spatial multiplexing,Transmitter diversity)DL SU-MIMO 4x4(Spatial multiplexing)UL MIMO,UL MU-MIMO 1x2(Receiver diversity)UL MU-MIMO 1x4(Receiver Diversity)UL
8、SU-MIMO 2x2(Spatial multiplexing),Transmit,1N,C1(K),r1(K),1M,Receive,S(k),S(k),Ye,Carbon nanotube antennas(1%wave velocity of free space,1000antennas in the same area as standard antenna of today),Cj(K),rj(K),ar,HUAWEI TECHNOLOGIES CO.,LTD.,Page 6,MIMO Technology BriefingIn a multi-path radio enviro
9、nmentNT Tx element&NR Rx element,not or almost not correlatedSource:mimoOn,12-15 Benefits,30 dB isolation 45 polar antenna12-15,-NT Tx elements transmit the same data stream-Transmitter/Receiver Diversity-Reliability,Tx,Rx,-NT Tx element transmit different data stream(NR NT)-Spatial Multiplexing-Hig
10、h throughput(need CSI),TxHUAWEI TECHNOLOGIES CO.,LTD.,Rx,Page 7,Beam-forming Technology Briefing(2-1)In a simple radio environment with detectable directions of desired signal and interference.Antenna Array-distance between elements is 0.5-1.,-(NT-1)interference suppression.Switched beam-forming,0.5
11、-1,-switching among predefined beams.Adaptive beam-forming-adapting radiation pattern according to desired signal and interference.,User 1,User 2,interference,desired signal,interference,desired signal,interference,interferenceUser 1User 2,Switched beam-forming,Adaptive beam-forming,Source:ArrayComm
12、HUAWEI TECHNOLOGIES CO.,LTD.,Page 8,Source:ArrayComm,Beam-forming Technology Briefing(2-2)Benefits-Increased antenna gain of NT-Coverage extension-Suppression of(NT-1)interferences-System capacity increaseSource:ArrayCommNeed CSI(Channel State Information),HUAWEI TECHNOLOGIES CO.,LTD.,Page 9,SU MIMO
13、&MU MIMOSU-MIMORXRXTXRXMU-MIMO-using SDMA(Space Division Multiple Access)RX,HUAWEI TECHNOLOGIES CO.,LTD.,TX,Page 10,RXRX,(5-1),S5,e,a,r,LTE/SAE Technology New Architecture(domains,Nodes,Interfaces)HSS,GERAN,GbIu,SGSN,GPRS Core,S6a,PCRF,UTRAN,E-Packet Core,S3,S4,S7,Rx+,Wx*,Evolved Packet Core,eNB,S1-
14、MMEEvolved UTRAN S1-U,MMES10,S11(SAE)ServingSAE GW,PDNSAE GWS2b,SGiS6c,Operators IPServices(e.g.IMS,PSS etc.),S2a,ePDGWn*,Wm*,3GPP AAAServer,Y,Trustednon-3GPP IP AccessHUAWEI TECHNOLOGIES CO.,LTD.,Un-trustednon-3GPP IP AccessPage 11,(5-2),.,LTE/SAE Technology New Architecture(domains,Nodes,Interface
15、s)By the end of June 2008,eNBInter Cell RRMConnectionMobility Cont.RB ControlRadio Admission ControleNB MeasurementConfiguration&ProvisionDynamic ResourceAllocation(Scheduler),aGW Control Plane,Fully verified Partially verified,SAE Bearer ControlRRCMM EntityRLC,MACPHYE-UTRANHUAWEI TECHNOLOGIES CO.,L
16、TD.,aGW User PlanePDCPEPC,Page 12,Internet,LTE/SAE Technology New Architecture(5-3)(domains,Nodes,Interfaces),Node NameeNode BMMEServing SAE GWPDN SAE GW,Functionality-RRM(Radio Bearer Control,Radio Admission Control,Connection Mobility Control,Dynamic allocation of resources to UEsin both uplink an
17、d downlink(scheduling).-IP header compression and encryption of user data stream.-Selection of an MME at UE attachment.-Distribution of paging messages to the eNBs.-Security control.-Idle state mobility control.-SAE bearer control.-Ciphering and integrity protection of NAS signalling.-Local Mobility
18、 Anchor point for inter-eNodeB handover-Mobility Anchoring for inter-3GPP mobility(terminating S4 and replying the traffic between 2G/3G system and PDN GW)-eUTRAN idle mode DL packet buffering and initiation of network triggered service request procedure.-Lawful Interception-Packet routing and forwa
19、rding-Policy enforcement-Per-user based packet filtering(by e.g.deep packet inspection)-Charging support-Lawful Interception-UE IP address allocation-Packet screening,HUAWEI TECHNOLOGIES CO.,LTD.,Page 13,(5-4),LTE/SAE Technology New Architecture(domains,Nodes,Interfaces)S1-MME Reference point for th
20、e control plane protocol between EUTRAN and MME.S1-U Reference point between EUTRAN and Serving GW for the per bearer user plane tunnelling and intereNodeB path switching during handover.S2a Provides the U-plane with related control and mobility support between trusted non 3GPP IP access andthe SAE
21、Gateway.S2b Provides the U-plane with related control and mobility support between ePDG and the SAE Gateway.S3 Enables user and bearer information exchange for inter 3GPP access network mobility in idle and/oractive state.It is based on Gn reference point as defined between SGSNs.S4 Provides the U-p
22、lane with related control and mobility support between GPRS Core and the 3GPPAnchor function of Serving GW and is based on Gn reference point as defined between SGSN and GGSN.S5 Provides U-plane tunnelling and tunnel management between Serving GW and PDN GW.It is used forServing GW relocation due to
23、 UE mobility and if the Serving GW needs to connect to a non-collocated PDNGW for the required PDN connectivity.,HUAWEI TECHNOLOGIES CO.,LTD.,Page 14,(5-5),LTE/SAE Technology New Architecture(domains,Nodes,Interfaces)S6a Enables transfer of subscription and authentication data for authenticating/aut
24、horizing user access to theevolved system(AAA interface)between MME and HSS.S7 Provides transfer of(QoS)policy and charging rules from PCRF to Policy and Charging EnforcementFunction(PCEF)in the PDN GW.The interface is based on the Gx interface.S8a Enables transfer of subscription and authentication
25、 data for authenticating/authorizing user access to theevolved system(AAA interface)between MME and HSS.S10 Reference point between MMEs for MME relocation and MME to MME information transfer.S11 Reference point between MME and Serving GW.SGi Reference point between the PDN GW and the packet data ne
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