Aiming to accomplish continuous and reliable communication of cognitive radio sensor network (CRSN) in the licensed band, this paper proposes a novel CRSN architecture by combing the strategies of cooperative sensing and wideband sensing. Through deploying cognitive nodes that are especially responsible for spectrum sensing in the network, spectrum sensing and data transmission are reasonably separated. While maximizing the duration of sensing and transmission, the scheme also achieves real-time spectrum sensing and continuous data transmission, significantly improving the probability of detection and network throughput. In addition, the design organizes the cognitive nodes to cooperatively perform multi-channel joint detection on the wideband. In this way, besides improving the detection reliability, the CRSN can continuously access the licensed band to further ensure that the data transmission is successive. The average network throughput under different hard fusion rules is analyzed and compared through simulations. Results show that the proposed network architecture can achieve higher throughput.