# W-[[CDMA - Code-Division Multiple Access|CDMA]] - Wideband Code-Division Multiple Access It is a type of [[3G - High-speed digital cellular telephony|3G]] technology that is part of the [[UMTS - Universal Mobile Telecommunications Service]] standard. [[W-CDMA - Wideband Code-Division Multiple Access|W-CDMA]] uses code division multiplexing to separate different communications within the same frequency band. Key characteristics of [[W-CDMA - Wideband Code-Division Multiple Access|W-CDMA]] include: 1. **High Data Rates**: [[W-CDMA - Wideband Code-Division Multiple Access|W-CDMA]] supports higher data rates compared to earlier [[2G - Digital cellular telephony|2G]] technologies, enabling faster internet access, video calling, and more advanced mobile applications. 2. **Wideband Channels**: It uses wideband channels (5 MHz) to provide better spectrum efficiency and higher data throughput. 3. **Global Adoption**: [[W-CDMA - Wideband Code-Division Multiple Access|W-CDMA]] is widely adopted globally and is the primary [[3G - High-speed digital cellular telephony|3G]] technology used by [[GSM - Global System for Mobile communication|GSM]] carriers. 4. **Compatibility with [[GSM - Global System for Mobile communication|GSM]] Networks**: It is designed to work alongside [[GSM - Global System for Mobile communication|GSM]] networks, allowing smooth transitions and backward compatibility for users. 5. **Enhanced Features**: Supports advanced features like [[HSPA - High-Speed Packet Access]], which further increases data speeds and capacity. [[W-CDMA - Wideband Code-Division Multiple Access|W-CDMA]] is a significant advancement in mobile technology, providing the foundation for high-speed mobile internet and paving the way for the development of [[4G - IP-based voice, data and multimedia telephony|4G]] and [[5G - Massive IoT ready|5G]] technologies.