Tag: cdma

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…

CDMA Handoff Defination,Types and Capacity Handoffs The TIA/EIA Interim Standard, Mobile Station – Base Station Compatibility Standard of Dual- Mode Wideband Spread Spectrum Cellular System (TIA/EIA/IS-95), states that a CDMA…

Radio Protocol Architecture in LTE The EUTRAN radio protocol model specifies the protocols terminated between UE and eNB. The protocol stack follows the standard guidelines for radio protocol architectures (ITU-R…

The CDMA reverse link uses a different coding scheme to transmit data. Unlike the forward link, the reverse link cannot support a pilot channel for synchronous demodulation (since each mobile…

The Base Station transmitter signal is, however, the composite of many channels (with a minimum of four). The Pilot channel is unmodulated (Walsh code 0); it consists of only the…

OFDMA Principles in LTE Orthogonal Frequency Division Multiple Access (OFDMA) is a key technology used in Long-Term Evolution (LTE) to efficiently manage the transmission of data over the radio interface….

What is inside PAGING Channel Message in CDMA The paging channel is the heart of a CDMA base station. All of the parameters and signaling necessary for the proper operation…

How Frame Formats in CDMA Once the analog voice is compressed by one of the vocoder processes, some additional data is added to produce a frame. Each frame in CDMA…

WCDMA Network Architecture The Wideband Code Division Multiple Access (WCDMA) network architecture: 1. User Equipment (UE): The UE, often a mobile phone or data card, is the device used by…

Purpose of Channelization Code & Scrambling Code in WCDMA Channelization Codes in WCDMA: Channelization codes, also known as Walsh codes, serve a critical purpose in WCDMA (Wideband Code Division Multiple…