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Initial LTE Network Design Options

While the goals and design targets specified above may be aggressive, options have been approved for consideration in the design that when used properly, will lead to a more efficient network compared to the existing 3G network. Therefore, in the quest to produce the best network possible in a cost-effective manner while meeting the goal … Read more

What is the difference between 4G and 4G LTE?

What is the difference between 4G and 4G LTE? Many people use the terms 4g and 4g interchangeably, but they are not the same. Lets find out the difference…. Features of 4g 4G is the next step above and a 3g replacement, offering faster speeds for users who stream media (such as videos or mp3s), … Read more

LTE – eNodeB, MME and SAE Function in Short

LTE – eNodeB, MME and SAE Function in Short Here I write in short about eNodeB functions, Mobile Management Entity (MME) functions and System Architecture Evolution (SAE) functions. LTE (Long-Term Evolution) represents a significant advancement in wireless communication technology, with key components such as the eNodeB (evolved NodeB), MME (Mobility Management Entity), and SAE (System … Read more

MULTICARRIER TECHNOLOGIES IN LTE

Adopting a multicarrier approach for multiple access in LTE was the first major design choice. The choice of multiple-access schemes was made in December 2005, with OFDMA being selected for the downlink, and SC-FDMA for the uplink. Both of these schemes open up the frequency domain as a new dimension of flexibility in the system, … Read more

Visualization of Beam Forming in LTE

Currently, beam forming is only applicable for TDD version of LTE. The time synchronous version of LTE TDD on uplink and downlink also makes the implementation of beam forming more attractive than in LTE FDD. Beam forming scheme is a signal processing technology that is used to direct radio transmission in a chosen angular direction. … Read more

Work of Acquisition Indicator Channel AICH in 3G

Here I write about what is main work of Acquisition Indicator Channel AICH in 3G There is 2 types main work of AICH Carrying the Acquisition Indicators (AI), SF = 256 There are 16 kinds of Signature to generate AI The Acquisition Indicator Channel (AICH) is a common downlink channel used to control the uplink … Read more

How Non Access Stratum procedures works in LTE

The procedures for the Non Access Stratum, especially power management procedures are substantially similar to UMTS. Main change is that the UMTS EPS allows concatenation certain procedures to allow faster creation of connection and media. Create MME UE context, when the UE is on and attaches to the network. Assign a unique ID called SAE … Read more

Function of User plane protocol stacks in LTE

The user plane includes the data streams and the data bearers for the data streams. The data streams are characterized by one or more frame protocols specified for that interface. Figure shows “User-plane protocol stack” comprise Medium Access Control (MAC), Packet Data Convergence Protocol (PDCP), Radio Link Control (RLC) and Physical (PHY) sub layers. Apart … Read more

Definition of LTE Interference Margin

Here I write Interference Margin in simple word and basic definition of interference margin in LTE. Let understands it. Interference margin accounts for the increase in the terminal noise level caused by the interference from other users. LTE uplink is orthogonal if it is within the same cell so there is no intra-cell interference. However, … Read more

Considerations of Call Model and Smartphone Penetration Growth for LTE Network Plan

Here I write about some small topic for LTE network plan which including Call Model and Smartphone Penetration Growth Considerations, Scheduler Selection, Indoor Coverage Requirement and Cell Edge Throughput Requirement. Considerations of Call Model and Smartphone Penetration Growth for LTE Network Plan The arrival of Smartphone has introduced a whole new trend in data applications … Read more