Saturday, 31 January 2015

03:43 - 2 comments

Uu Interface


ROHC is robust header compression performed on the IP packet headers in PDCP
Ciphering performed in PDCP
Integrity checking performed in PDCP for RRC messages (and hence
encapsulated NAS messages)
MAC may multiplex several Logical channels to form a single Transport
channel
HARQ performed in MAC

02:04 - No comments

LTE UE Guide

The internal architecture of the user equipment for LTE is identical to the one used by UMTS and GSM which is actually a Mobile Equipment (ME). The mobile equipment comprised of the following important modules:
  • Mobile Termination (MT): This handles all the communication functions.
  • Terminal Equipment (TE): This terminates the data streams.
  • Universal Integrated Circuit Card (UICC): This is also known as the SIM card for LTE equipments. It runs an application known as the Universal Subscriber Identity Module (USIM).
A USIM stores user-specific data very similar to 3G SIM card. This keeps information about the user's phone number, home network identity and security keys etc.

1.) UE Architecture
2.) UE identifiers
3.) UE Categories

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