Huawei Completes First EHRPD Optimized Handoff Test

Huawei today announced the successful completion of a commercial test for LTE to CDMA evolved, High-Rate Packet Data (eHRPD) optimized handoff. eHRPD means the evolution and improvement of the original...
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cdma, ehrpd, google, huawei, lte, news, telecom, telecom news, updates, usa

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...
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Packet Switched Radio Interface in LTE, protocol stack, physical layer, layer, lte network, switching network ltehsdpa, lte, lte modulation techniques, packet, radio interface, telecom

What is inside SIM Card (Subscriber Identity Module) ?

Subscriber Identity Module (SIM) The SIM as mentioned previously is a “smart card” which plugs into the ME and contains information about the MS subscriber hence the name Subscriber Identity...
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active, cdma, CHANNEL, forward, handoff, lai, lte, neighbor, PAGING, pilot, reverse, search window, sim

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...
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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 windowactive, cdma, cdma search window size, cell, CHANNEL, forward, handoff, lai, neighbor, PAGING, pilot, reverse, search about cdma, search window, search window in cdma, sim

Advantages of CDMA Handoff

It is “soft”, meaning that communication is not interrupted by the handoff. This is sometimes called “make before break.” This means fewer dropped calls for users and higher customer satisfaction...
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active, cdma, cell, CHANNEL, forward, handoff, lai, neighbor, PAGING, pilot, reverse, search window, sim

Handoff Candidate Classification in CDMA

The mobile station continuously searches for Pilots to detect the presence of other CDMA signals that have the same carrier frequency and measures the strength (received Ec/Nt) of the pilots. ...
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active, cdma, cell, CHANNEL, classification of handoff, forward, handoff, handoff classification, lai, neighbor, PAGING, pilot, reverse, search window, sim

How QPSK & BPSK Modulation in WCDMA?

A data-modulation scheme defines how the data bits are mixed with the carrier signal, which is always a sine wave. There are three basic ways to modulate a carrier signal...
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ask, bit, carrier, cdma, cell, digital, fsk, modulation, phase, psk, signal, telecom, where bpsk modulation scheme are used

Location Area Identity (LAI) and Global Cell Identity (GCI) in CDMA

Location Area Identity (LAI)  PAGING message is broadcast within a local area, the size of which depends on traffic, paging bearer capability, signaling flow , etc. Format:  MCC+MNC+LAC  MCC:  Mobile...
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active, cdma, cell, cell global identity, cell global identity cdma, CHANNEL, forward, global cell id, handoff, lac lai, lai, location area identity format, neighbor, PAGING, pilot, reverse, search window, sim, sim location area identity

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...
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arq, cell, diversity, enodeb, lte, radio, receive, telecom, transmitt

How to Reverse Access Channel Work in CDMA?

Reverse Access Channel used by MS Initiate Communication or Respond to Paging Channel. A reverse channel is first spread with WALSH to 307.2Kbps and then becomes 1.2288Mcps after long code...
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active, cdma, cdma paging area, CHANNEL, forward, handoff, lai, neighbor, PAGING, pilot, pn, reverse, search window, sim

WCDMA Channelization Code

OVSF Code (Orthogonal Variable Spreading Factor) is used as channelization code Orthogonal codes are easily generated by starting with a seed of 1, repeating the 1 horizontally and vertically, and...
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block, cdma, channelization, channelization code, how create channelization codes, orthogonal, ovsf code, telecom, uplink, wcdma channelization code

Forward Traffic Channel of CDMA

Forward Traffic Channel is used to Transmit Data and Signaling Information. Symbol repetition makes symbol streams at different rates adapted to those at the rate of 19.2k. The original symbol...
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active, cdma, CHANNEL, forward, handoff, interleaving, lai, neighbor, PAGING, pilot, power control, reverse, search window, sim

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