IEEE 802.16j standard defines two relay transmission modes to increase system capacity and coverage extension respectively. In this paper, we focus on non-transparent relay network scenario, and formulating the relay resource scheduling problem. The zone boundary placement has greatly effect to system throughputs; we propose the determination method in our algorithm. We propose a MRRS (Multihop Relay Resource Scheduling) algorithm to ensure the algorithm cans easily implements on IEEE 802.16j network. Our algorithm according to different user distribution and variety channel state information, MRRS can adaptively adjust zone boundary placement to improve the available slots utilization, and we strike a balance between network throughput and fairness index. Simulation results show that MRRS maintains good fairness index performance.