The subject of this paper is the design and evaluation of an efficient error control scheme for indoor cellular wireless broadband access networks, which can be considered as the wireless extension of a fixed quality-of-service oriented network (e.g., based on the ATM- (asynchronous transfer mode-) protocol). In order to improve the high and time-variant probability of transmission errors, a novel error control scheme is developed. The protocol called HYPERFLOW (Hybrid Partial sElective Repeat ARQ with Flow control) represents an efficient combination of a selective repeat and a Go-Back-N ARQ- (automatic repeat request-) scheme while keeping the implementation complexity within limits. Additionally, it features a flow control mechanism which prevents the channel from being blocked by a user with momentarily high transmission error probability and thus considerably increases the total system throughput. Furthermore, the HYPERFLOW-protocol is combined with an adaptive forward error control code. The resulting type II hybrid ARQ-scheme is based on the principle of incremental redundancy with redundant symbols being sent only when they are required. A realistic model for the fluctuations of the transmission quality is used for the performance evaluation of the HYPERFLOW-protocol. It turns out that the adaptive FEC-based error correction scheme can considerably improve the system performance. The mean transmission delay, for instance, can be reduced by a factor of up to 10 when the FEC-scheme is properly applied.