802.11s原版协议规范

A STA’s membership in a BSS is dynamic (STAs turn on, turn off, come within range, and go out of range). To become a member of an infrastructure BSS or an IBSS, a STA joins the BSS using the synchronization procedure described in 11.1.3.4. To start a new mesh BSS or to become a member of a mesh BSS, a STA starts beaconing and the synchronization maintenance procedure described in 11C.12. To access all the services of an infrastructure BSS, a STA becomes “associated.” These associations are dynamic and involve the use of the distribution system service (DSS), which is described in 5.3.2. A mesh STA does not become associated as there is no central entity in a mesh BSS (MBSS). Instead, a mesh STA peers with other mesh STAs and thereby they form the MBSS.