US Patent No. 10,368,324

POWER HEADROOM CONFIGURATION FOR PRIMARY AND SECONDARY CELLS BASED ON PUCCH ACTIVATION


Patent No. 10,368,324
Issue Date July 30, 2019
Title Power Headroom Configuration For Primary And Secondary Cells Based On Pucch Activation
Inventorship Tatsushi Aiba, Sakai (JP)
Shoichi Suzuki, Sakai (JP)
Kazunari Yokomakura, Sakai (JP)
Hiroki Takahashi, Sakai (JP)
Assignee SHARP KABUSHIKI KAISHA, Sakai (JP)

Claim of US Patent No. 10,368,324

1. A terminal device that communicates with a base station device by using a plurality of serving cells including a primary cell (Pcell) and a secondary cell (Scell), the terminal device comprising:receiving circuitry configured to
receive a first parameter used for indicating that a power headroom is to be reported using a first medium access control (MAC) control element, and
receive a second parameter used for indicating that simultaneous transmission of a physical uplink control channel (PUCCH) and a physical uplink shared channel (PUSCH) is configured, the second parameter being different from the first parameter; and
MAC processing circuitry configured to obtain a value of Type 2 power headroom, wherein
the MAC processing circuitry is configured to
obtain the value of Type 2 power headroom for the Scell configured with the PUCCH in a case that the first parameter is configured, the Scell is configured with the PUCCH, and the Scell configured with the PUCCH is activated, and
obtain the value of Type 2 power headroom for the Pcell in a case that the first parameter is configured, the Scell is not configured with the PUCCH, and the second parameter is configured for the Pcell.