FIELD: means of communication.
SUBSTANCE: invention relates to communication systems. Power headroom message and message handling are explained in the context of a physical uplink shared channel (PUSCH), on which the user equipment (UE) does not have a valid uplink grant, and a physical uplink control channel (PUCCH) for which the UE has no transmission. Under these circumstances, it is not possible to directly calculate one or more parameters that are used to calculate the power margin.
EFFECT: accordingly, exemplary embodiments provide the ability to use predefined known values by the UE in order to calculate the power margin, and through an enhanced Node B, in order to understand the meaning of the received message about the power reserve.
36 cl, 13 dwg
