Terminal apparatus, base station apparatus, and method for terminal apparatus

Patent metadata

Field	Value
Publication number	US-2018014257-A1
Application number	US-201715712332-A
Country	US
Kind code	A1
Filing date	Sep 22, 2017
Priority date	Sep 30, 2011
Publication date	Jan 11, 2018
Grant date	—

Abstract

In a communication system in which a base station apparatus and a terminal apparatus communicate with each other, a base station apparatus, a terminal apparatus, and a communication system with which the base station apparatus and the terminal apparatus can efficiently communicate with each other are provided. The terminal apparatus that communicates with the base station apparatus includes a radio resource control section 6011 that configures a plurality of uplink physical channels and that configures an uplink power control-related parameter for each of the plurality of uplink physical channels in accordance with information included in a radio resource control (RRC) signal and a transmission power control section 6015 that sets transmission power of the uplink physical channels on the basis of the uplink power control-related parameters.

First claim

1 . (canceled)

2 . A terminal apparatus comprising:
a receiver that
receives a higher layer signal including one or more uplink power control configurations for a serving cell, and
receives a physical downlink control channel including a downlink control information for scheduling a physical uplink shared channel; and
a transmitter that sets a transmit power for the physical uplink shared channel based on the one or more uplink power control configurations indicated by a value of a field in the downlink control information.

3 . The terminal apparatus according to claim 2 , wherein
each of the one or more uplink power control configurations includes a nominal power value and a pathloss compensation coefficient.

4 . The terminal apparatus according to claim 2 , wherein
a pathloss reference resource used for setting the transmit power is based on a channel state information reference signal associated with at least one of the one or more uplink power control configurations indicated.

5 . A base station apparatus comprising:
a transmitter that
transmits a higher layer signal including one or more uplink power control configurations for a serving cell, and
transmits a physical downlink control channel including a downlink control information for scheduling a physical uplink shared channel; and
a receiver that receives the physical uplink shared channel transmitted at a transmit power set by a terminal apparatus based on the one or more uplink power control configurations indicated by a value of a field in the downlink control information.

6 . The base station apparatus according to claim 5 , wherein
each of the one or more uplink power control configuration includes a nominal power value and a pathloss compensation coefficient.

7 . The base station apparatus according to claim 5 , wherein
a pathloss reference resource used for setting the transmit power is based on a channel state information reference signal associated with at least one of the one or more uplink power control configurations indicated.

8 . A method for a terminal apparatus, comprising:
receiving a higher layer signal including one or more uplink power control configurations for a serving cell, and receiving a physical downlink control channel including a downlink control information for scheduling a physical uplink shared channel; and setting a transmit power for the physical uplink shared channel based on the one or more uplink power control configurations indicated by a value of a field in the downlink control information.

9 . The method according to claim 8 , wherein
each of the one or more uplink power control configurations includes a nominal power value and a pathloss compensation coefficient.

10 . The method according to claim 8 , wherein
a pathloss reference resource used for setting the transmit power is based on a channel state information reference signal associated with at least one of the one or more uplink power control configurations indicated.

Assignees

• Sharp Kk

Inventors

• Ouchi Wataru
• Imamura Kimihiko
• Nakashima Daiichiro
• Nogami Toshizo
• Shimezawa Kazuyuki
• Suzuki Shoichi
• Kato Yasuyuki
• Uemura Katsunari

Classifications

• H04L5/001

  the frequencies being arranged in component carriers · CPC title

• H04W52/40

  during macro-diversity or soft handoff · CPC title

• H04J13/0048

  Walsh · CPC title

• H04L5/0053

  Allocation of signalling, i.e. of overhead other than pilot signals · CPC title

• H04W52/242 Primary

  taking into account path loss · CPC title