foerfarande foer to adapt radio communication system with base station and several mobilstationer to traffic and performance requirements

摘要

A method in a mobile radio communication system for adapting the system and communication to prevailing traffic and performance requirements. According to the invention a mobile station inserts information on particular codes in its messages transmitted to a base station in response to an invitation message from the base station. The codes indicate whether a message is new or retransmitted and/or message age. The base station receives radio signals in time slots identified in its invitation message and estimates for each time slot based on radio signals received in the time slot whether the time slot is empty or busy, or whether the time slot is empty or correct. For each message received and understood the base station retrieves the code. The retrieved codes and the number of emty/busy/correct slots enable the base station to estimate prevailing system traffic and performance. Estimations on prevailing traffic and performance are used to control system parameters such as number of time slots following an invitation message.