Method for reduced resource usage in system synchronization, data delivery and asynchronous real-time access in mobile communications systems with mulitple 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.