Abstract: A radio communication system with adaptive interleaving selects between chip interleaving and bit interleaving depending upon the number of active code signals. A transmitted RF signal includes a coded information signal part and a control signal part that indicates a number of active code signals that have been combined to form the coded information signal part. The system is especially suited for MC-CDMA systems.

Abstract: A method and apparatus for relaying data within a multi-hop communication system (200) is provided herein. During operation, all preamble (301, 305) and broadcast (303, 307) information for relaying nodes (201) and for the base station (204) is placed during a beginning portion (315) of a frame (300) prior to any data transmission (511, 609). By placing preamble/broadcast portions in the beginning of the frame, the data transmission portions of the frame can be allowed to vary in time, yet synchronization will be allowed between all nodes in the system.

Abstract: A base station (101) will instruct relay stations (102) to periodically skip transmissions of their control information when control messaging by all relay stations exceeds a predetermined threshold (e.g., 50% of radio resource capacity). The base station determines the relay stations to skip by periodically ranking the relay stations and skipping control messages for relay stations having a lowest rank.

Abstract: A radio communication system with adaptive interleaving selects between chip interleaving and bit interleaving depending upon the number of active code signals. A transmitted RF signal includes a coded information signal part and a control signal part that indicates a number of active code signals that have been combined to form the coded information signal part. The system is especially suited for MC-CDMA systems.