Patent ID: 8537767

Claim:
A method for performing Power Headroom reporting procedure, adapted for a user equipment, wherein the user equipment is configured with simultaneous transmission of a physical uplink control channel and a physical uplink shared channel, a power headroom report comprising a type 1 power headroom and a type 2 power headroom, the method comprising: determining whether the user equipment has uplink resources for new transmission; when the user equipment has uplink resources for new transmission, determining whether the power headroom report has been triggered; and when the power headroom report has been triggered, transmitting the type 1 power headroom and the type 2 power headroom together wherein the type 1 power headroom and the type 2 power headroom are carried by a power headroom report medium access control-control element comprising: type 1 power headroom field, for indicating a type 1 power headroom level wherein the type 1 power headroom level is obtained from a quantized value of a type 1 power headroom, wherein the type 1 power headroom is determined by a physical uplink shared channel power of a primary cell; type 2 power headroom field, for indicating a type 2 power headroom level, wherein the type 2 power headroom level is obtained from the quantized value of power headroom, wherein the type 2 power headroom is determined by the physical uplink shared channel power and a physical uplink control channel power of the primary cell; wherein the power headroom report media access control-control element is used for reporting the type 1 power headroom level and the type 2 power headroom level to a network node.