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Learn about the GSM Random Access Channel (RACH), used by mobile devices to access the GSM network, particularly during call setup. Understand collision avoidance and the RACH frame structure.
Explore GSM's SACCH, used for power control, timing advance, and neighbor cell measurements during active calls.
Learn about the GSM Standalone Dedicated Control Channel (SDCCH), a signaling channel between a GSM mobile device and a GSM BTS, operating independently of the traffic channel.
Learn about the GSM Synchronization Channel (SCH), its role in time synchronization, and the information it carries, including the frame number and BSIC.
Explore GSM System Information (SI) messages (SI1-SI9, SI13), their purpose, and how they aid in troubleshooting GSM UE issues. Understand BCCH and SACCH message types.
Understand key GSM terms like BS_AG_BLKS_RES, PLMN, Location Area (LA), Routing Area (RA), and Cell Global Identity (CGI). Learn how these elements define network hierarchy and mobile station location management.
Explore crucial GSM timers like T100, T200, T301, T3126, T3146, T3182, T3190, T3192, T3124, T3230, and T3330. Understand their functions in managing radio links, call setup, and packet data transfer in GSM networks.
Overview of GSM timers used on the mobile side, including their functions and values, such as T3110, T3112, and T3114.
Overview of GSM timers used on the network side (BTS), including their functions and values for network operations.
Explore GSM traffic channels, focusing on Full Rate Speech (TCH/FS) and Half Rate Speech (TCH/HS) channels, their data rates, and processing steps.
Learn about the GSM Transcoding Rate and Adaptation Unit (TRAU), its role in speech compression, and how it interfaces within the GSM network architecture.
Explore the evolution from GSM to GSM Advanced, highlighting key architectural differences and advancements like MSRD, SAIC, MUROS, and VAMOS.
Explore GSM (Global System for Mobile Communications), a digital cellular technology widely used for 2G mobile networks. Learn its features, uses, advantages, and limitations.
An explanation of different GSM/GPRS loopback test types (A, B, C, D, E, F, I, G/H) used for mobile phone performance testing, detailing their processes and target measurements.
Understand GSM/GPRS/EGPRS throughput, including coding schemes (CS1-CS4) and modulation (MCS1-MCS9), factors affecting data rates, and normalized throughput calculations.
A breakdown of GSM900, DCS1800, and PCS1900, comparing frequencies, channel numbers, and providing the formulas for each band.
Learn the key differences between HLR (Home Location Register) and VLR (Visitor Location Register) in GSM networks, including their roles in subscriber information and roaming.
Understand the differences between IMEI, IMSI, and TMSI identifiers used in GSM networks for mobile device and subscriber identification. Learn how they are used for security and network efficiency.
Mapping between MEAN_BEP and Actual_BEP values for GMSK and 8-PSK modulation schemes, with a table outlining the ranges.
Explore the key differences between MUROS and VAMOS, two GSM techniques that improve network capacity by multiplexing users on the same resources.
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