comprehensive, overview of the 3GPP Release 8 LTE network architecture and interfaces, showing how it can be deployed in an optimized and efficient manner. Engineers involved
The high-level network architecture of LTE is comprised of following three main components: The User Equipment UE. The Evolved UMTS Terrestrial Radio Access Network E−UTRAN.
• Long Term Evolution (LTE ) is the next generation 3GPP radio access network Evolved UMTS Terrestrial Radio Access Network (E-UTRAN) • System Architecture Evolution (SAE) is the 3GPP next generation standard for mobile networks providing: Increased Bandwidth End-to-End IP Simplified Architecture
LTE-Advanced WiMAX Release 2 (IEEE 802.16m-2011) LTE and WiMAX are near-4G (3.9G) and not 4G
LTE is one standard developed by organizations from all over the world. Signals Research Group (SRG) conducted an exhaustive analysis of the 3GPP standardization process that led to the development of LTE, and we reviewed all of the primary …
• LTE focus: – Enhancement of the UTRA – Optimisation of the UTRAN architecture – To ensure the continued competitiveness of the 3GPP technologies for the future • LTE was the first and only technology recognized by the Next Generation Mobile Network alliance to meet its broad requirements • Target deployment in 2010
6 Architecture of the LTE Air Interface 105 6.1 AirInterfaceProtocolStack 105 6.2 Logical,TransportandPhysicalChannels 107 6.2.1 LogicalChannels 107 6.2.2 TransportChannels 107 6.2.3 PhysicalDataChannels 108 6.2.4 ControlInformation 109 6.2.5 PhysicalControlChannels 110 6.2.6 PhysicalSignals 111 6.2.7 InformationFlows 111 6.3 TheResourceGrid 111
Hosts the PHYsical (PHY), Medium Access Control (MAC), Radio Link Control (RLC), and Packet Data Convergence Protocol (PDCP) layers. Controls user-plane header-compression and encryption. Provides Radio Resource Control (RRC) functionality for the control plane.
EPS consists of LTE (Long Term Evolution), which is dedicated to the evolution of the radio interface, and SAE (System Architecture Evolution), which focuses on Core Network architecture evolution. Reference point for the control plane protocol between E-UTRAN and MME. It uses Stream Control Transmission Protocol (SCTP) as the transport protocol.
Long term evolution (LTE) is the next step forward in cellular 3G services. LTE technology is a based on a 3GPP standard that provides for a downlink speed of up to 150 megabits per second (Mbps) and an uplink speed of up to 50 Mbps.