ed in Section 9. Section 10 looks into the role of various standard development organizations while we provide snapshots of some key devices in Section 11. Some industry updates related to devices and chapter summary is provided in the following sections. 10.2 3G Wireless Devices' Components 3G wireless devices are fundamentally redesigned to meet the growing demands of information, com- munication and entertainment needs of the users. These devices consist of multiple components, namely software platform, radio frequency unit, baseband module, application processor, signal processing sec- tion (vocoder, logic control), user interface, power supply and accessories as shown in Figure 10.1 [1]. The mobile software platform allows the development of applications. It usually consists of operating system, middleware and application programming interface. The RF (radio frequency) unit converts the baseband information (voice or data) for communications between the base station and wireless devices. It consists of transceiver (transmitter and receiver chains), antennas assemblies and power amplifiers. The transmitter moves the message signal to a higher frequency carrier by modulating with a high radio frequency carrier wave. The receiver amplifies and demodulates the received signal and converts it into their original form. The antenna section converts RF energy to and from electromagnetic signals. Power amplifier, as one of the most important components of a mobile phone, cannot be integrated and remains a standalone component. Next Generation Mobile Communications Ecosystem: Technology Management for Mobile Communications Saad Z. Asif C 2011 John Wiley & Sons, Ltd. ISBN: 978-0-470-74746-9 Next Generation Mobile Communications Ecosystem Logic Control Software Platform Accessories Vocoder Baseband RF Module Application Interface Module Processor (Mic, Speaker, touch screen, etc) Power Supply Figure 10.1 Device components The signal processing section conducts operations on the information and controls the internal op- 