Which OFDM Parameters Used in WiMAX The fixed and mobile versions of WiMAX have slightly different implementations of the OFDM physical layer. Fixed WiMAX, which is based on IEEE 802.16-2004, uses a 256 FFT-based OFDM physical layer. Mobile WiMAX, which is based on the IEEE 802.16e-20055 standard, uses a scalable OFDMA-based physical layer. In the … Read more
Slow Fading Margin in LTE with example of standard deviations in slow fading Shadow fading indicates the fading brought by obstruction due to a building or a natural feature. Shadow fading changes slowly, and is thus called “slow fading”. Statistics repeatedly show that the median levels of received signals follow log-normal distribution with the time … 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 … Read more
What and How Cell Edge Rate in LTE Cell Edge Rate in LTE is simple if it’s High then Coverage Low and if It’s Low then Coverage high similar to Frequency selection. Not clear lets understand in detail. Cell Edge Rate in LTE Similar to other wireless communications systems, such as CDMA2000 EVDO, WiMAX and … 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 … Read more
How Many Various Gains brought by the MIMO for LTE When we talk about LTE RF Planning then the one question in mind is that what about MIMO gains. Here I write Different Gain in LTE like MIMO Gains and Gains which brought by multiple antenna technology and By MIMO Like Power Combine Gain, Array … Read more
LTE parameters Equipment related parameters include the base station, antenna, and terminal. The link budget parameters vary with the base stations, antennas, and terminals of different vendors. These parameters affect the link budget result. As a result, the downlink is unaffected in most scenarios. List of LTE parameters in LTE link Budget LTE Transmit Power LTE Power Combining … Read more
Calculation for Body Loss and Feeder Loss for LTE When we RF Planning in LTE then Losses are one of most important factor to take in calculation for predication coverage. Below you find how Body loss and Feeder loss calculation for LTE. Body Loss : Body loss indicates the loss generated due to signal blocking … Read more
Search Window in cdma is essential parameter to work cdma technology because based on search window as defined in system mobile needs to take important decision for available bts. Search window play main role in mobile switch on, handoff, access etc. let’s check in detail. Why Search Window? A CDMA system employs the synchronized detection … Read more
Here I write about Pseudo-Noise Code and what its use Pseudo-Noise Code its two type and Pseudo-Noise Short code is identification for each BTS and Pseudo-Noise Long Code is Identification of each user. Let’s understand basic. A pseudo-noise code (called PN code in short) has properties similar to a noise sequence. It is actually a … Read more