Terminal device, method, and integrated circuit

Patent metadata

Field	Value
Publication number	US-2016135147-A1
Application number	US-201414904157-A
Country	US
Kind code	A1
Filing date	Jul 10, 2014
Priority date	Jul 12, 2013
Publication date	May 12, 2016
Grant date	—

Abstract

A physical uplink shared channel corresponding to a physical downlink control channel accompanied by C-RNTI detected in a subframe n, is transmitted on a subframe n+k, based on a first uplink-downlink configuration, transmission power for transmission of the physical uplink shared channel on the subframe n+k is set based on a first parameter relating to power control adjustment, in a case that the subframe n+k belongs to a first subframe set, and transmission power for the transmission of the physical uplink shared channel on the subframe n+k is set based on a second parameter relating to the power control adjustment, in a case that the subframe n+k belongs to a second subframe set.

First claim

1 . A terminal device configured to communicate with a base station device, the terminal device comprising:
transmission circuitry configured to set a first uplink-downlink configuration and a second uplink-downlink configuration, and configure a first subframe set and a second subframe set; transmit a physical uplink shared channel corresponding to a physical downlink control channel accompanied by C-RNTI detected in a subframe n, on a subframe n+k, based on the first uplink-downlink configuration; set transmission power for transmission of the physical uplink shared channel on the subframe n+k, based on a first parameter relating to power control adjustment, in a case that the subframe n+k belongs to the first subframe set; set transmission power for the transmission of the physical uplink shared channel on the subframe n+k, based on a second parameter relating to the power control adjustment, in a case that the subframe n+k belongs to the second subframe set; transmit a HARQ-ACK for a physical downlink shared channel detected in a subframe m, on the physical uplink shared channel in a subframe m+j, based on the second uplink-downlink configuration; and set transmission power for the transmission of the physical uplink shared channel in the subframe m+j, based on the first parameter or the second parameter.

2 . The terminal device according to claim 1 , wherein
the transmission circuitry is configured to calculate a value of the first parameter by accumulating a correction value indicated by the transmit power control command, in a case that accumulation is enabled, and the subframe n+k belongs to the first subframe set and a transmit power control command for the physical uplink shared channel in the subframe n is received, and the transmission circuitry is configured to calculate a value of the second parameter by accumulating the correction value indicated by the transmit power control command, in a case that accumulation is enabled, and the subframe n+k belongs to the second subframe set and the transmit power control command for the physical uplink shared channel in the subframe n is received.

3 . The terminal device according to claim 1 , wherein
the transmission circuitry is configured to set one value indicated by a transmit power control command received on the subframe n, as a value of the first parameter, in a case that accumulation is not enabled, and the subframe n+k belongs to the first subframe set, and the transmission circuitry is configured to set one value indicated by the transmit power control command received on the subframe n, as a value of the second parameter, in a case that accumulation is not enabled, and the subframe n+k belongs to the second subframe set.

4 . The terminal device according to claim 2 , wherein
the transmission circuitry is configured not to accumulate the correction value for the first parameter, in a case that the subframe n+k belongs to the first subframe set, and the transmission power exceeds a maximum power set to the terminal device in the subframe n+k, by accumulating the correction value indicated by the transmit power control command received on the subframe n, and the transmission circuitry is configured not to calculate the correction value for the second parameter, in a case that the subframe n+k belongs to the second subframe set, and the transmission power exceeds the maximum power set to the terminal device in the subframe n+k, by accumulating the correction value indicated by the transmit power control command received on the subframe n.

5 . The terminal device according to claim 2 , wherein
the transmission circuitry is configured not to accumulate the correction value for the first parameter, in a case that the subframe n+k belongs to the first subframe set, and the transmission power is equal to or smaller than a minimum power in the subframe n+k, by accumulating the correction value indicated by the transmit power control command received on the subframe n, and the transmission circuitry is configured not to accumulate the correction value for the second parameter, in a case that the subframe n+k belongs to the second subframe set, and the transmission power is equal to or smaller than the minimum power in the subframe n+k, by accumulating the correction value indicated by the transmit power control command received on the subframe n.

6 . A method for use in a terminal device configured to communicate with a base station device, the method comprising:
setting a first uplink-downlink configuration and a second uplink-downlink configuration, and configuring a first subframe set and a second subframe set; transmitting a physical uplink shared channel corresponding to a physical downlink control channel accompanied by C-RNTI detected in a subframe n, on a subframe n+k, based on the first uplink-downlink configuration; setting transmission power for transmission of the physical uplink shared channel on the subframe n+k, based on a first parameter relating to power control adjustment, in a case that the subframe n+k belongs to the first subframe set; setting transmission power for the transmission of the physical uplink shared channel on the subframe n+k, based on a second parameter relating to the power control adjustment, in a case that the subframe n+k belongs to the second subframe set; transmitting a HARQ-ACK for a physical downlink shared channel detected in a subframe m, on the physical uplink shared channel in a subframe m+j, based on the second uplink-downlink configuration; and setting transmission power for the transmission of the physical uplink shared channel in the subframe m+j, based on the first parameter or the second parameter.

7 . The method according to claim 6 , further comprising:
calculating a value of the first parameter by accumulating a correction value indicated by the transmit power control command, in a case that the subframe n+k belongs to the first subframe, set and a transmit power control command for the physical uplink shared channel in the subframe n is received, and accumulation is enabled; and calculating a value of the second parameter by accumulating the correction value indicated by the transmit power control command, in a case that the subframe n+k belongs to the second subframe set, and the transmit power control command for the physical uplink shared channel in the subframe n is received, and the accumulation is enabled.

8 . The method according to claim 6 , further comprising:
setting one value indicated by a transmit power control command received on the subframe n, as a value of the first parameter, in a case that the subframe n+k belongs to the first subframe set, and accumulation is not enabled; and setting one value indicated by the transmit power control command received on the subframe n, as a value of the second parameter, in a case that the subframe n+k belongs to the second subframe set, and the accumulation is not enabled.

9 . The method according to claim 7 , further comprising:
not accumulating the correction value for the first parameter, in a case that the subframe n+k belongs to the first subframe set, and the transmission power exceeds a maximum power set to the terminal device in the subframe n+k, by accumulating the correction value indicated by the transmit power control command received on the subframe n, and the accumulation is enabled; and not accumulating the correction value for the second parameter, in a case that the subframe n+k belongs to the second subframe set, and the transmission power exceeds the maximum power set to the terminal device in the subframe n+k, by accumulating the correction value indicated by the transmit power control command received on the subframe n, and

Assignees

• Sharp Kk

Inventors

• Ouchi Wataru
• Aiba Tatsushi
• Suzuki Shoichi

Classifications

• H04W72/23 Primary

  in the downlink direction of a wireless link, i.e. towards a terminal · CPC title

• H04W52/32 Primary

  TPC of broadcast or control channels · CPC title

• H04W52/146

  Uplink power control · CPC title

• H04W72/042 Primary

  Electricity · mapped topic