CDMA

Time Division-Synchronous Code Division Multiple Access (TD-SCDMA) is a mobile communication standard that combines time division duplexing (TDD) with code division multiple access (CDMA) technologies. It was developed as an alternative 3G standard to WCDMA (Wideband CDMA) and CDMA2000. TD-SCDMA is predominantly used in China and represents a unique approach to providing high-speed data and … Read more

Differential Phase Shift Keying (DPSK) is a digital modulation scheme used in telecommunications to transmit data over radio frequency (RF) or optical communication channels. DPSK is specifically designed to address certain challenges in signal transmission and offers advantages in certain applications. Let’s explore in detail what DPSK is used for and the key aspects of … Read more

Enhanced High Rate Packet Data (eHRPD) is a mobile communication technology that serves as an enhancement to the High Rate Packet Data (HRPD) network. Developed as part of the evolution of Code Division Multiple Access (CDMA) technologies, eHRPD is specifically associated with CDMA2000 networks. Let’s delve into the details of what the eHRPD network is … Read more

Evolution-Data Optimized (EV-DO) is a wireless broadband standard and a key technology in the evolution of Code Division Multiple Access (CDMA) mobile communication systems. It was developed to enhance data transfer rates over CDMA networks, allowing for faster and more efficient internet access on mobile devices. Let’s explore in detail what EV-DO is, its features, … Read more

Evolution-Data Optimized (EV-DO) is a wireless broadband network type designed to provide high-speed data transfer capabilities over Code Division Multiple Access (CDMA) mobile communication networks. EV-DO is specifically tailored to meet the growing demand for data-centric applications and services, offering faster internet access on mobile devices. Let’s explore in detail what the EV-DO network type … Read more

Frequency Shift Keying (FSK) and Phase Shift Keying (PSK) are two modulation techniques used in digital communication to encode information in the form of discrete signals. These techniques play a fundamental role in various communication systems, including telecommunications, data transmission, and wireless communication. Let’s delve into the details of FSK and PSK: 1. Frequency Shift … Read more

In Code Division Multiple Access (CDMA) networks, a “handoff” or “handover” refers to the process of transferring an ongoing call or data session from one cell or base station to another without interruption. This mechanism is crucial for maintaining seamless communication as mobile devices move through different coverage areas within a CDMA network. Let’s explore … Read more

Code Division Multiple Access (CDMA) is a digital cellular technology that allows multiple users to share the same frequency band simultaneously. CDMA achieves this by assigning a unique code to each user, enabling the simultaneous transmission of multiple signals in the same frequency spectrum. Let’s delve into the details of CDMA and explore its different … Read more

In the context of Code Division Multiple Access (CDMA) technology, a CDMA channel refers to a specific communication channel within the CDMA network. CDMA utilizes a unique approach to channel allocation, allowing multiple users to share the same frequency spectrum simultaneously. Let’s explore the details of a CDMA channel and how it functions within a … Read more

Code Division Multiple Access (CDMA) frequency and channel specifications involve the allocation of frequency bands and the definition of various channels within a CDMA network. These specifications play a crucial role in the efficient operation of CDMA technology. Let’s explore the details of CDMA frequency and channel specifications: 1. Frequency Bands for CDMA: CDMA networks … Read more