The Cell Allocation (CA) is a list of all the frequencies allocated to a cell. The CA is transmitted regularly on the BCCH. Usually it is also included in the signaling messages that command the mobile to start using a frequency hopping logical channel. The cell allocation may be different for each cell. In GSM ... Read more
Adaptive Multi-Rate (AMR) is a codec (coder-decoder) used in GSM (Global System for Mobile Communications) networks to handle the encoding and decoding of audio signals. It is specifically designed to adapt to varying network conditions and provide efficient compression for voice communications in mobile networks. Key Features of AMR in GSM: Adaptive Bit Rate: AMR ... Read more
What are the advantages of adaptive coding and modulation? Adaptive Coding and Modulation (ACM) is a technique used in wireless communication systems, particularly in satellite and wireless broadband networks, to optimize data transmission by dynamically adjusting the coding and modulation schemes based on real-time channel conditions. ACM offers several advantages that enhance the efficiency and ... Read more