CPC H04W 52/06 (2013.01) [H04W 74/0808 (2013.01); H04W 74/0833 (2013.01)] | 12 Claims |
1. A method of performing a Random Access Channel (RACH) procedure on an unlicensed band by a user equipment (UE), the method comprising:
transmitting, to a base station (BS), a message A including a Physical Random Access Channel (PRACH) and a Physical Uplink Shared Channel (PUSCH); and
receiving, from the BS, a message B related to contention resolution in response to the message A,
wherein, based on that the PRACH and the PUSCH are transmitted consecutively, a value of a power ramping counter for configuring a transmission power of the message A increases based on that a transmission spatial beam for the PRACH is same as a transmission spatial beam for a previous PRACH,
wherein, based on that there is a time gap between the PRACH and the PUSCH, a power ramping counter for the PRACH and a power ramping counter for the PUSCH are used for configuring transmission powers of the PRACH and the PUSCH respectively.
|