METHOD FOR REDUCED RESOURCE USAGE IN SYSTEM SYNCHRONIZATION, DATA DELIVERY AND ASYNCHRONOUS REAL-TIME ACCESS MOBILE COMMUNICATIONS SYSTEMS WITH MULTIPLE LOW COMPLEXITY TERMINALS

摘要

A radio communication method and a corresponding system are described. Time frequency resources are divided into a grid of resources. For communicating with a plurality of non-synchronized terminals the timing offset of each terminal is measured and a joint message is asynchronously transmitted to a subset of terminals, wherein the subset comprises at least two terminals.