Method for terminal for carrying out uplink communication in wireless communication system, and terminal using method
Provided are a method for a terminal for carrying out uplink communication in a wireless communication system, and an apparatus using the method. The method receives an uplink communication-related parameter independently configured for each analog beam, and carries out the uplink communication on the basis of the parameter. If the uplink communication is carried out using a particular analog beam, then an uplink communication-related parameter configured on the particular analog beam is applied to the uplink communication.
1. A method of receiving a physical uplink control channel (PUCCH) by a base station (BS) in a wireless communication system, the method comprising:
transmitting at least one power control parameter for each beam of a plurality of beams;
transmitting beam information for a beam among the plurality of beams, wherein the beam information is to be used for a transmission of the PUCCH by a user equipment (UE); and
receiving, from the UE, the PUCCH of which transmission power is determined based on the beam information and the at least one power control parameter for the beam.
2. The method of claim 1 , wherein the beam comprises a beam reference signal (BRS).
3. The method of claim 2 , wherein the beam reference signal comprises an identity (ID) that distinguishes the beam from others in the plurality of beams.
4. The method of claim 1 , wherein the at least one power control parameter for the beam comprises an offset value which informs a modulation and coding scheme (MCS) to be applied for a transmission of the PUCCH.
5. The method of claim 1 , wherein the at least one power control parameter for the beam informs at least one of (i) a resource of the PUCCH for transmission of uplink control information, (ii) a format of the PUCCH, (iii) a transmission scheme of the PUCCH, or (iv) a seed value related to generation of a reference signal sequence of the PUCCH.
6. The method of claim 1 , wherein the at least one power control parameter for the beam comprises at least one of (i) a power offset value applied to transmission of a sounding reference signal (SRS), (ii) a power offset value applied for each PUCCH format, (iii) a power offset value applied to a PUCCH transmit diversity technique, or (iv) a power offset value according to a magnitude of uplink control information payload.
7. The method of claim 1 , wherein the at least one power control parameter for the beam comprises an uplink semi-persistent scheduling configuration information for each beam.
8. The method of claim 1 , wherein the at least one power control parameter for the beam comprises at least one of (i) information regarding resource and transmission type of a sounding reference signal (SRS), (ii) uplink transmission mode information, or (iv) timing advanced (TA) information.
9. The method of claim 1 , wherein an uplink semi-persistent scheduling operation is allowed only in some of the plurality of beams configured in the UE.
10. The method of claim 1 , wherein the at least one power control parameter is independently configured for each of the plurality of beams, and is configured to have a same value for some of the plurality of beams and to have different values for others of the plurality of beams.
11. The method of claim 1 , wherein the beam information comprises a beam index, from among a plurality of beam indices, indicating the beam among the plurality of beams.
12. A base station (B S) configured to perform physical uplink control channel (PUCCH) reception in a wireless communication system, the BS comprising:
at least one transceiver;
at least one processor; and
at least one computer memory operably connectable to the at least one processor and storing instructions that, when executed, cause the at least one processor to perform operations comprising:
transmitting at least one power control parameter for each beam of a plurality of beams;
transmitting beam information for a beam among the plurality of beams, wherein the beam information is to be used for a transmission of the PUCCH by a user equipment (UE); and
receiving, from the UE, the PUCCH of which transmission power is determined based on the beam information and the at least one power control parameter for the beam.
13. The BS of claim 12 , wherein the beam information comprises a beam index, from among a plurality of beam indices, indicating the beam among the plurality of beams.
14. The BS of claim 12 , wherein the at least one power control parameter for the beam comprises an offset value which determines a modulation and coding scheme (MCS) to be applied for the PUCCH transmission.
15. The BS of claim 12 , wherein the at least one power control parameter for the beam comprises at least one of (i) a resource of the PUCCH for transmission of uplink control information, (ii) a format of the PUCCH, (iii) a transmission technique of the PUCCH, or (iv) a seed value related to generation of a reference signal sequence of the PUCCH.
16. An apparatus configured to operate in a wireless communication, the apparatus comprising:
at least one processor; and
at least one computer memory operably connectable to the at least one processor and storing instructions that, when executed, cause the at least one processor to perform operations comprising:
generating (i) at least one power control parameter for each beam of a plurality of beams and (ii) beam information for a beam among the plurality of beams, wherein the beam information is to be used for a transmission of a physical uplink control channel (PUCCH) by a user equipment (UE); and
acquiring a physical uplink control channel (PUCCH) signal of which transmission power is determined based on the beam information and the at least one power control parameter for the beam.