h 3GPP System Architecture Evolution (SAE) project to define the overall system architecture and evolved packet core network [37]. It has been shown that the 3GPP standards have evolved toward higher performance and data rates, lower access latencies, and increasing capability to support emerging wireless applications. To achieve higher downlink and uplink data rates, UMTS operators today are upgrading their 3G networks with High Speed Downlink Packet Access (HSDPA), which was specified in 3GPP Release 5, and High Speed Uplink Packet Table 1-5 3GPP Organization iii Project Coordination Group GSM/EDGE Radio Access GERAN WG1 (PCG) Network (GERAN) This group is responsible for RF aspects of GERAN, Internal This group is the ultimate This group is responsible for the GERAN interface specifications, decision making body in 3GPP specification of the radio access part Specifications for GERAN radio performance and RF system responsible for final adoption of of GSM/EDGE, more specifically RF aspects, conformance test specifications for testing of all 3GPP Technical Specification front-end, Layer 1, 2 and 3, internal aspects of GERAN base stations, etc. Group work items, to ratify and external interfaces, GERAN WG2 election results, and the conformance test specifications for This group is responsible for protocol aspects of GERAN. It resources committed to 3GPP. all aspects of GERAN base stations specifies the data link layer protocols and the interfaces between and terminals, and GERAN these layers and the physical layer specifications for the nodes in the GERAN WG3 GERAN. This group is responsible for conformance test specifications for testing of all aspects of GERAN terminals liaising with other technical groups to ensure overall coordination. Radio Access Network (RAN) RAN WG1 This group is responsible for the This group is responsible for the specification of the physical definition of the functions, layer of the radio interface for UE, UTRAN, Evolved UTRAN, and requirements and interfaces of the beyond, covering b