Tag : cell

Advantages of CDMA Handoff

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 for operators. The handoff
Handoff Candidate Classification in CDMA

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.  When the mobile station
How QPSK & BPSK Modulation in WCDMA?

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 in a digital sense:
Transmit Diversity & Receive Diversity

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 same data is sent
LTE Downlink Logical Channel

LTE Downlink Logical Channel

Paging Control Channel(PCCH) A downlink channel that transfers paging information and system information change notifications. This channel isused for paging when the network does not know the location cell of the UE Broadcast Control
Nokia Going to Cut 10000 Jobs.

Nokia Going to Cut 10000 Jobs.

Nokia has announced another huge shake-up of the company, with the loss of 10,000 jobs by the end of next year. While planning to significantly reduce its operating expenses, Nokia also announce an increased
Specifications of WCDMA

Specifications of WCDMA

Channel Bandwidth  5 MHz Duplex Mode  FDD and TDD Downlink RF Channel Structure  Direct Spread (DS) Chip Rate  3.84 Mcps Frame Length  10 ms Spreading Modulation  Balanced QPSK (downlink) Dual-channel QPSK (uplink) Complex spreading