What is E-UTRAN in LTE?

E-UTRA is a radio access network (RAN) which is referred to under the name EUTRAN standard meant to be a replacement of the UMTS and HSDPA/HSUPA technologies specified in 3GPP releases 5 and beyond. Unlike HSPA, LTE’s E-UTRA is an entirely new air interface system, unrelated to and incompatible with W-CDMA.

What is LTE protocol?

LTE is the latest generation of the 3GPP standards. The LTE standard specifies an IP-only network supporting data rates up to 150 Mbps. These high data rates will enables new applications and services such as voice over IP, streaming multimedia, videoconferencing or even a high-speed cellular modem. 1.1 Protocol Design.

What are the different layers in LTE?

LTE Protocol Stack Layers

  • Physical Layer (Layer 1) Physical Layer carries all information from the MAC transport channels over the air interface.
  • Medium Access Layer (MAC)
  • Radio Link Control (RLC)
  • Radio Resource Control (RRC)
  • Packet Data Convergence Control (PDCP)
  • Non Access Stratum (NAS) Protocols.

What are the three sublayers in the link layer in the LTE protocol stack?

The data link layer of LTE system is divided into three sublayers: Packet Data Convergence Protocol (PDCP), Radio Link Control (RLC), and Medium Access Control (MAC).

What is the interface between UTRAN and CN?

There are four interfaces connecting the UTRAN internally or externally to other functional entities: Iu, Uu, Iub and Iur. The Iu interface is an external interface that connects the RNC to the Core Network (CN). The Uu is also external, connecting Node B with the User Equipment (UE).

What protocols are used in 4G?

4G is All-IP Like 3G, 4G networks are IP-based (Internet protocol), meaning that it uses a standard communications protocol to send and receive data in packets. Unlike 3G, however, 4G uses IP even for voice data. It is an all-IP standard.

What is Layer 3 in LTE?

The Radio Resource Control (RRC) protocol is used in UMTS, LTE and 5G on the Air interface. It is a layer 3 (Network Layer) protocol used between UE and Base Station. This protocol is specified by 3GPP in TS 25.331 for UMTS, in TS 36.331 for LTE and in TS 38.331 for 5G New Radio.