Here I Write about how the mapping can be done between logical, transport and physical channels. Not all physical channels are represented because not all physical channels correspond to a transport channel. The mapping between logical channels and transport channels is done by the MAC sub-layer. Different connections can be made between logical and transport ... Read more
Dedicated Channel (DCH) is a crucial element within the framework of 3rd Generation (3G) mobile communication systems. Specifically, it plays a significant role in Wideband Code Division Multiple Access (WCDMA) networks, a type of 3G technology standardized by the 3rd Generation Partnership Project (3GPP). In the context of 3G, DCH is established for a specific ... Read more
The table shows representative Link Downlink budget for 3G. Fluctuations in the signal can be represented by a scale and small effects such models are typically used for external circulation. Indoor shadowing results in a large-scale signal change, which may be represented by a log-normal distribution in a manner similar to 3G macro propagation model ... Read more