How Many LTE Downlink Transport Channel ? How its Work?
There are major four channel in LTE Downlink trasport channel. which list below with its work in short. Paging Channel ( PCH) Supports UE discontinuous reception (DRX) to enable UE…
Category: LTE
Here we discus about LTE Technology, detail on 4G and How to LTE.
Packet-Switched Radio Interface in LTE
LTE has been designed as a completely packet-oriented multi service system, without the reliance on circuit-switched connection-oriented protocols prevalent in its predecessors. In LTE, this philosophy is applied across all…
Transmit Diversity & Receive Diversity
Transmit Diversity MISO = Multiple Input Single Output Principle More complex than SISO. 2 or more transmitters and one receiver. MISO is more commonly referred to as transmit diversity. The…
LTE Downlink Logical Channel
Paging Control Channel(PCCH) A downlink channel that transfers paging information and system information change notifications. This channel isused for paging when the network does not know the location cell of…
E-UTRAN (Evolved Universal Terrestrial Radio Access Network)
Role of Radio Access Network (RAN), namely NodeB and RNC is replaced with ENB, so as to reduce operational and maintenance cost of the device other than the simpler network…
Handover Measurements in LTE
Measurements to be performed by a UE for intra/inter-frequency mobility are controlled by e-UTRAN, using broadcast or dedicated control. If the frequency center of the measured cell is the same…
Intra E-UTRAN Handover in LTE
The UE is RRC connected. During the HO: The radio link is released from the eNodeB 1 and re-established on the eNodeB 2 The Control plane is switched to the…
MIMO Single User for LTE
SU-MIMO = Single User MIMO It is the most common form of MIMO. Each user is served by only one BS and it occupies the resource exclusively, including time, frequency….
How Downlink Control Information or DCI in LTE?
Downlink Control Information or DCI in LTE The PDCCH carries Downlink Control Information or DCI to indicate the resource assignment in UL or DL for one RNTI. A DCI can…
How Data Transmission in UL in LTE?
In UL, the UE has no dedicated resources to transmit directly when new data arrived in the buffer from higher layer. It requests resources to transmit them. It receives radio…
DL scheduler in LTE
The DL scheduler is spit into 3 functional parts: 1.The Static Scheduler: Which assigns a fixed amount of Transport Blocks as well as PDCCH and PDSCH resources for the BCCH…
Radio Bearer in LTE
There are 2 types of Radio Bearers (RB) in LTE: To carry signaling. There are called the SRB (Signaling Radio Bearer) To carry user data. There are associated with an…