Advantages of Intelligent Network (IN)

Concept of Intelligent Network: The introduction of new services and access to the GSM service are based on the concept of Intelligent Network (IN). This is because of the independence between: Conventional call processing handled by the exchange, Mobile radio functions handled by a dedicated server. Dialog between these two is managed by an IN […]

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Intelligent Network (IN), Advantages of Intelligent Network, Mobility management, radio frequencies, radio control, GSM servers

How To Set Pilot Search Window Sizes in CDMA ?

When the handset first powers up, it does an exhaustive search for the best pilot. No windows are used in this process. On the paging channel, the handset learns the window sizes SRCH_WIN_A, N, R and uses them when looking for neighbors both in idle mode and during calls. When a strong neighbor is requested […]

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How To Set Pilot Search Window Sizes in CDMA, search window, pilot set, intercell distances, mobile, evod throughput, tips to increase throughput in evdo, hsd search window, search window table, criateria to set search window

Open loop and close loop testing in LTE

Here I write short notes on how to test open loop and close loop testing in lte and what idea behind it. In open loop no any data send back and in closed loop all relevant data available to both side lets check in some detail. Open and close loop testing in LTE: Open loop […]

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Open loop and close loop testing in LTE, open loop, close loop, loop, lte, source, feedback, receiver, testing equipment, testing of lte, baseband, demodulation

Emergence of Standards-Based Technology

In 1998, the Institute of Electrical and Electronics Engineers (IEEE) formed a group called 802.16 to develop a standard for what was called a wireless metropolitan area network, or wireless MAN. Originally, this group focused on developing solutions in the 10GHz to 66GHz band, with the primary application being delivering high-speed connections to businesses that […]

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Emergence of Standards-Based Technology, interoperability testing, ieee, standards, wimax forum, physical layer, specifications, metropolitan area, interoperability testing, division duplexing

3G Spectrum Allocation

How 3G Spectrum Allocation? 3G Spectrum Allocation is different in different country but mainly its all having as per below figure. ITU has allocated 3G Spectrum Allocation 230 MHz frequency for the 3G mobile communication system IMT- 2000: 1885 ~ 2025MHz in the uplink and 2110~ 2200 MHz in the downlink. Of them, the frequency […]

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3G Spectrum Allocation, itu, downlink band, uplink band, spectrum band, wcdma 3g band

Which Bands Used in WCDMA ?

There are different band in different country but most of commonly used band we will discuss here. Main bands : means basic band when 3G commercial launch by Private or public sector. 1920 ~ 1980MHz / 2110 ~ 2170MHz Supplementary bands: different country maybe different as per government selling in auction. 1850 ~ 1910 MHz / 1930 MHz […]

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wcdma band, 3g band, 3g frequency, 3g spectrum, 3g band type, wcdma band used

Receiver Design for LTE

The main objective of the study is to take action for the entire measurement receiver. However, many factors can affect the performance of the receiver, such sub-blocks of receipt must be checked on the basis of the first and measurable contributions eliminate or reduce uncertainty. If using multiple receivers, it is necessary to make these […]

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Receiver Design for LTE, Open and closed loop operation, lte receivers, division duplex, lte design, receiver, testing receiver, design receiver, lte models

Basic Test for LTE Transmitter and Receiver Design

LTE already requires fundamental changes in the base and handset and research project due to higher data rates, there is an important signal bandwidth and enhance integration and miniaturization in mobile phones, for example: Need to handle 6 different channel bandwidth from 1.4 to 20 MHz, and both frequency division duplex (FDD) and Time Division […]

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lte test, transmitter lte, receiver lte, lte handset, handset test lte, lte radio test, basic lte handset requirement

Principle of Power control in LTE

Power control – already being applied in 2nd and 3rd generation networks – has high potential for improvement of the performance of mobile networks. Main benefits are: 1. It can bring down the interference in up- and downlink and hence enhances the capacity of the networks. 2. Additionally it helps to keep down the uplink-power […]

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Principle of Power control in LTE, closed loop, power control, resource element, uplink power, transmission power, term resource, element energy, control determines, closed loop

Which Cell Parameters needs to Obtain in LTE?

To provide the most critical information to the UEs, the eNodeB uses the BCH channel The information is sent on pre-defined time-frequency resources. This information is organized into different information blocks: The MIB, the Master Information Block. System Frame Number DL -downlink System Bandwidth Number of Transmit Antennas at eNodeB Periodicity: 4 RFs SIB1 How […]

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Cell Parameters needs to Obtain in LTE, parameter lte, transmit, antennas, enodeb, system frame number, downlink

What is Cyclic prefix in LTE ?

The guard period after each rectangular pulse carrying the modulated data symbol is a simple and efficient method to deal with multi-path reception. The cyclic prefix (CP) simply consists of the last part of the following symbol. The size of the cyclic prefix field depends on the system and can even vary within one system. […]

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What is Cyclic prefix in LTE, symbol, receiver, correlation, interference, FFT synchronization,

Implementation Margin in LTE

Implementation margin is used to include non-ideal receiver effects such as channel estimation errors, tracking errors, quantization errors, and phase noise.  This implementation margin or sensitivity degradation can be used to apply some margin to the link budget to account for devices from other vendors that may have larger tolerances from the specifications or for […]

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Implementation Margin in LTE, noise, margin, error, phase, tracking error

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