US Patent No. 10,993,193

METHOD AND APPARATUS FOR REPORTING POWER HEADROOM IN WIRELESS COMMUNICATION SYSTEM


Patent No. 10,993,193
Issue Date April 27, 2021
Title Method And Apparatus For Reporting Power Headroom In Wireless Communication System
Inventorship Hyunho Lee, Seoul (KR)
Yunjung Yi, Seoul (KR)
Assignee LG Electronics Inc., Seoul (KR)

Claim of US Patent No. 10,993,193

1. A method for transmitting a power headroom (PH) report in a wireless communication system supporting different transmission time interval (TTI) lengths between cells, the method being performed by a user equipment (UE) and comprising:based on a first physical uplink shared channel (PUSCH) having a first TTI length being scheduled on a first cell, obtaining a first PH value for the first cell based on at least (i) a bandwidth of the first PUSCH and (ii) a modulation and coding scheme (MCS) related parameter for the first PUSCH;
based on a second PUSCH having a second TTI length being scheduled on a second cell, obtaining a second PH value for the second cell based on at least (i) a bandwidth of the second PUSCH and (ii) a MCS related parameter for the second PUSCH, the first TTI length being shorter than the second TTI length; and
based on the first PUSCH on the first cell colliding with the second PUSCH on the second cell and the UE not being capable of simultaneous transmissions with different TTI lengths, dropping the second PUSCH on the second cell and transmitting the first PH value and the second PH value through the first PUSCH on the first cell.