How Transport Channel Processing in LTE?
Transport channels are block oriented transmission services and transmit one or more transport blocks per transmission time interval (TTI). The TTI is 1 ms (e.g. one sub-frame). Transport blocks may…
Physical Channel Types of LTE
The physical layer uses resource blocks to transmit binary coded information in QPKS, 16QAM or 64QAM or OOK modulation form. Physical channels determine how data is processed and then mapped…
Transport Channel Types of LTE
Transport channels are used as the basic transmission service offered by layer 1 to MAC. MAC will use transport channels to multiplex and demultiplex logical channels onto and from them….
Authentication and Access Control in Wimax
Access control is the security mechanism to ensure that only valid users are allowed access to the network. In the most general terms, an access control system has three elements:…
Logical Channel Types of LTE
Logical channels are in a one-to-one fashion associated with radio bearers. Logical channel types are used to distinguish the type of information transmitted within the attached radio bearer. The two…
T-Mobile USA Ordered to Pay Compensation to Former Employee
SEATTLE—T-Mobile USA Inc. and its parent company, Deutsche Telecom A.G., have been ordered by the U.S. Department of Labor to pay $345,972 to a worker allegedly fired for being a…
How to Layer 2 Functions and Data Flow in LTE
For layer 2 let us first take a look into the uplink. Data transmission is handled through the protocol stack according to the following flow: 1. Data is generated by…
Different Tasks and States of RRC Protocol in LTE-EUTRAN
The RRC protocol for EUTRAN is responsible for the basic configuration of the radio protocol stack. But one should note, that some radio management functions (scheduling, physical resource assignment for…
Radio Protocol Architecture in LTE
The EUTRAN radio protocol model specifies the protocols terminated between UE and eNB. The protocol stack follows the standard guidelines for radio protocol architectures (ITU-R M1035) and is thus quite…
What is SC-FDMA and how it works in LTE?
One of the major drawbacks of an OFDMA system is, that the transformation of a complex symbol mapped sequence (e.g. BPSK, QPSK, etc.) onto a small set of subcarriers produces…
How Many Different Methods to Combine OFDMA for handle Multiuser System?
Threre are four Different Methods to Combine OFDMA for handle Multiuser System. Plain OFDM: Normal LTE OFDM has no built-in multiple-access mechanism. This is suitable for broadcast systems like DVB-T/H…