WIRELESS COMMUNICATION SYSTEM AND METHOD FOR MAPPING OF CONTROL MESSAGES ON THE UN- INTERFACE

摘要

An LTE mobile communication system in which relay RNs (14), each in communication with a donor eNB (13) are used to improve the coverage of high data rates, the cell -edge throughput and/or to increase system throughput. The problem addressed is that in the RN <--> DeNB (13) Un interface, all the SI -AP and/or X2-AP messages with different QoS requirements (for example different S1-AP/X2-AP messages that have different time criticalities) have to be delivered in a limited number of Data or Signalling Radio Bearers A multiplexing mechanism enables the categorisation of different types of Sl-AP and/or X2-AP messages and the mapping of these to a limited number of Radio Bearers over the Un radio interface.