Download LTE Cours Complet PDF

TitleLTE Cours Complet
File Size4.5 MB
Total Pages134
Document Text Contents
Page 134



Efficient spectrum usageEfficient spectrum usage

To get wider spectrum bandwidth up to 100MHz

• Aggregation of fragmented spectrums

• Sharing of fragmented spectrums among several

• Asymmetric UL and DL spectrum allocation

To attain another ‘bit/Hz’

• SU-MIMO for UL (2x2 or 2x4)

• Further enhancement of the current MIMO scheme


Reduced UE Reduced UE CComplexityomplexity, P, Power ower

Balance between the system performance

UE complexity, power consumption

• Peak power consumption of an UE will be higher

• Enhanced dynamic control of reception bandwidth
• A multi-carrier UL transmission mode by UE near the eNB

– Enabling discontinuous resource allocation
– Easy utilization of MLD at eNB receivers



AbréviationsAbréviations 1/1/

• ISIM: IMS Subscriber Identity Module
• USIM: Universal Subscriber Identity Module
• IETF: Internet Engineering Task Force
• S-TMSI: S-Temporary Mobile Subscriber Identity
• PLMN: Public Land Mobile Network
• SM: Session Management (Procédures de signalisation

entre terminal et MME pour la gestion de bearer)
• GMM: GPRS Mobility Management
• C-RNTI: Cell-Radio Network Temporary Identifier
• SCTP: Stream Control Transmission Protocol
• P-GW: PDN Gateway


AbréviationsAbréviations 2/2/

• PDN: Packet Data Network
• MGW: Media Gateway
• MGCF: Media Gateway Control Function
• CSCF: Call Session Control Function
• PCRF: Policy and Charging Rules Function
• PDF: Policy Decision Function
• CRF: Charging Rules Function
• MME: Mobility Management Entity
• HSS: Home Subscriber Server
• AAA: Authentication, Authorization and Accounting
• CQI: Channel-Quality Indicator

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