Abstract: Provided are a spatial reuse method and apparatus. The method includes: receiving a radio frame and determining whether the radio frame carries a trigger frame configured to trigger uplink multi-user transmission according to indication information of the trigger frame in a physical signaling field of the radio frame; when the trigger frame is determined to be carried in the radio frame, receiving, by a station, the trigger frame, and acquiring first spatial reuse information of the trigger frame; at an end of a radio frame reception process, determining whether to perform first spatial reuse according to the first spatial reuse information. The present disclosure solves the problem in the related art of low spatial reuse efficiency when a station performs spatial reuse on a radio frame and achieves a technical effect of improving network performance.

Abstract: A network node selection method and apparatus and a network node activation method and apparatus are provided. In the network node selection method, network node selection information of one or more moving network nodes is acquired, the network node selection information is used for selecting a moving network node to be activated; a moving network node to be activated is selected from the one or more moving network nodes according to the network node selection information and a node activation command message is sent to the moving network node to be activated.

Abstract: Disclosed is a spectrum resource allocation method, including: a secondary system management node receiving a request message sent by a secondary system device for a priority channel application qualification; and judging whether to give the priority channel application qualification to the secondary system device according to the request message, and returning a response message to the secondary system device according to the judgment result. Also disclosed are a spectrum resource allocation system and a secondary system management node.