Logic may implement a hierarchical data structure for traffic indication mapping (TIM) and segment the TIM into TIM segment bitmaps to facilitate transmissions for wireless communications devices. The traffic indication provides information as to whether a device associated with an access point (AP) has data buffered by the AP. Logic of the AP may inform devices about the range of devices represented by each of the TIM segments by including a block start and block range or a TIM segment index that can be associated with a range of blocks. Logic may provide at least one page bitmap to devices for the TIM segment bitmaps to provide an indication to the devices as to whether a particular block includes an indication that any client devices have data buffered by the access point.