After you have decided what resource your permission will protect and have resolved any issues about overlap of permissions, you must decide how finely grained access control should be.
决定您的权限将保护哪些资源并解决了有关权限重叠的任何问题后，您必须决定访问控制的细微程度。
2
A joint blind estimation method based on spectrum overlap for uplink interleaved orthogonal frequency division multiple access carrier frequency offset and timing synchronization is proposed.