Question

Explain why?

3) _systems has a unique feature of requiring fast power control whereas in power control is very slow. (A) GSM, CDMA (B) CDMA, GSM (C) GSM, CorDECT (D) None of the Above system, the 4) The purpose of a WAP gateway is (A) to convert analog voice to digital format (B) to enable a portable device to obtain an IP address (C) to convert HTML code to machine readable code (D) to terminate TCP protocol from the web server

Answer 1

3) CDMA, GSM

Explanation: For CDMA system to function effectively, we need to control the power; if power control is not implemented many problems such as the near-far effect will start to dominate and consequently will lower the capacity of the CDMA system.

RF power control is a process of adjusting the power level of a mobile radio as it moves closer and further away from a base station. GSM RF power adjustments occur in 2 dB steps. As the mobile telephone moves closer to the cell site, less power is required from the mobile telephone and it is commanded to reduce its transmitter output power level.

4) to convert HTML code to machine readable code

Explanation: The WAP Gateway is a device for converting the TCP/IP protocols to the different WAP protocols and vice versa. It is able to translate HTML to WML. The WAP Gateway is often a proxy server, meaning that it acts both as server and client for the purpose of making requests on behalf of other clients. Wireless Markup Language (WML), based on XML, is a now-obsolete markup language intended for devices that implement the Wireless Application Protocol (WAP) specification, such as mobile phones. It provides navigational support, data input, hyperlinks, text and image presentation, and forms, much like HTML (HyperText Markup Language).