What are the key requirements of LTE design?
Requirements for LTE
- Instantaneous downlink peak data rate of 100 Mbps within a 20 MHz downlink spectrum allocation (5 bps/Hz)
- Instantaneous uplink peak data rate of 50 Mbps (2.5 bps/Hz) within a 20MHz uplink spectrum allocation.
What is the architecture of LTE?
A standard LTE system architecture consists of an Evolved UMTS Terrestrial Radio Access Network, more commonly known as E-UTRAN, and the System Architecture Evolution, also known as SAE. SAE’s main component is the Evolved Packet Core, also known as an EPC. The E-UTRAN is comprised of: User Equipment (UEs)
What is RF planning and optimization?
RF. Planning is the process of assigning frequencies, transmitter locations and parameters of a. wireless communications system to provide sufficient coverage and capacity for the services. required .It is the main duty of a mobile service providers to subject their networks to.
What are the building blocks of LTE?
The high-level network architecture of LTE is comprised of following three main components: The User Equipment (UE). The Evolved UMTS Terrestrial Radio Access Network (E-UTRAN). The Evolved Packet Core (EPC).
How are the principles implemented in LTE?
LTE is based on Orthogonal Frequency Division Multiplexing (OFDM). The peak data rates can be further increased by using advanced Multiple Input Multiple Output (MIMO), Carrier Aggregation solutions, Coordinated Multipoint (CoMP) and Enhanced Inter-cell Interference Coordination (eICIC).
How do you do RF planning?
Contents
- 1 Phase 1: initial radio link budgeting.
- 2 Phase 2: detailed RF propagation modelling.
- 3 Phase 3: fine tuning and optimisation.
- 4 Phase 4: continuous optimisation.
What is RF planning tools?
RF planning tools do the all-important work of coverage analysis so that existing networks can identify coverage gaps and integrate their resolution seamless into the planning process right from the start.
What is EPG in LTE?
The Evolved Packet Gateway (EPG) is Ericsson’s implementation of the 3GPP S-/P-GW and with that a main node in the Evolved Packet Core, supporting 5G, 4G, 3G with multi-access capability and interworks with Wi-Fi with seamless transitions between the access types.
What are LTE features?
4G LTE features
- Audio and video streaming. LTE has faster download and upload speeds than 2G and 3G.
- Real-time connection to services. With voice over LTE (VoLTE), users can talk to others without experiencing lag or jitter.
- Even faster speeds with LTE-Advanced.
- Carrier aggregation.
What is difference between LTE and EPC?
Evolved Packet Core (EPC) is a framework for providing converged voice and data on a 4G Long-Term Evolution (LTE) network. 2G and 3G network architectures process and switch voice and data through two separate sub-domains: circuit-switched (CS) for voice and packet-switched (PS) for data.
What are the three interfaces for EPC?
The three core elements of the EPC are the Mobility Management Entity (MME), Serving Gateway (SGW), and Packet Data Network Gateway (PGW).
What is SI window length in LTE?
SI Window Length: a window is defined to enable multiple transmissions of the SI message within the window. SI Window Length can be set to 1, 2, 5 10, 15, 20 or 40 ms.
What is RF Optimization in Telecom?
Radio Frequency Optimization is a process through which different soft (Cell Reselect Offset, BTS power) and hard (e.g. Electrical Tilt, Mechanical Tilt, Azimuth etc.) parameters of the Base transceiver stations are changed in order to improve the coverage area and improve quality of signal.
What is radio planning tool?
In the context of mobile radio communication systems, RF planning is the process of assigning frequencies, transmitter locations and parameters to a wireless communications system to evaluate coverage and capacity.