Uplink power headroom management for connectivity with logically separate cells

A wireless communication apparatus comprising:

• means for determining an uplink power allocation across at least two independently controlled cells of a wireless communication network for a mobile entity served by at least two independently controlled cells of a wireless communication network, subject to a total PH constraint for uplink transmissions by the mobile entity;
• and
• means for managing PH reporting for the uplink serving cells.

A method for Power Headroom (PH) management by a mobile entity in carrier aggregation, the method comprising:

• signaling data from a mobile entity subject to a PH constraint using uplink carrier aggregation (CA) to at least two independently controlled cells of a wireless communication network;
• and
• providing information for managing uplink power control from the mobile entity to each of the at least two independently controlled cells.

A wireless communication apparatus comprising:

• means for signaling data from a mobile entity subject to a Power Headroom (PH) constraint using uplink carrier aggregation (CA) to at least two independently controlled cells of a wireless communication network;
• and
• means for providing information for managing uplink power control from the mobile entity to each of the at least two independently controlled cells.

A computer program product, comprising:

• a non-transitory computer-readable medium comprising code for causing at least one computer to:
• signal data from a mobile entity subject to a Power Headroom (PH) constraint using uplink carrier aggregation (CA) to at least two independently controlled cells of a wireless communication network, and provide information for managing uplink power control from the mobile entity to each of the at least two independently controlled cells.