Terminal device, base station apparatus, integrated circuit, and communication method

Patent metadata

Field	Value
Publication number	US-2016380742-A1
Application number	US-201415039455-A
Country	US
Kind code	A1
Filing date	Nov 18, 2014
Priority date	Nov 29, 2013
Publication date	Dec 29, 2016
Grant date	—

Abstract

In a terminal device, pieces of information for a cell group, which include information indicating a subframe for monitoring a PDCCH with a RNTI, is received, pieces of information for each of multiple cells in the cell group, which include information for determining an index of information indicating an UL-DL configuration for each of the multiple cells in the cell group, is received, the PDCCH with the RNTI is monitored on a common search space of one cell in the cell group, the information indicating the UL-DL configuration for each of the multiple cells in the cell group is transmitted on the PDCCH with the RNTI, and, in a case where the one cell is a cell in which Time Division Duplex (TDD) is applied, a DL subframe that is based on an UL-DL configuration which is based on a RRC message is configured for monitoring the PDCCH with the RNTI.

First claim

1 - 16 . (canceled)

17 . A terminal apparatus that is configured to communicate with a base station apparatus by using a plurality of cells, comprising:
reception circuitry configured to and/or programmed
to receive a Radio Resource Control (RRC) message which includes at least sixth information indicating a first uplink-downlink configuration,
to receive a higher layer signal which includes at least first information indicating Radio Network Temporary Identifier (RNTI), second information indicating periodicity to monitor a Physical Downlink Control CHannel (PDCCH) with the RNTI, and third information indicating subframes to monitor the PDCCH with the RNTI within the periodicity, and
to receive, for each of the plurality of cells, fourth information used to determine an index which indicates one of M pieces of fifth information, each of the M pieces of fifth information indicating a second uplink-downlink configuration, and
control circuitry configured to and/or programmed to configure the subframes to monitor the PDCCH with the RNTI based on at least the received higher layer signal, wherein the reception circuitry is configured to and/or programmed to monitor, in the configured subframes, the PDCCH with the RNTI in a common search space on a predetermined cell which is one of the plurality of cells, and to receive the M pieces of fifth information included in the PDCCH with the RNTI, each of the configured subframes is indicated by the first uplink-downlink configuration as a downlink subframe in a case where the predetermined cell is a Time Division Duplex (TDD) cell, and the control circuitry is configured to and/or programmed to determine, for each of the plurality of cells, one second uplink-downlink configuration from the M pieces of fifth information based on the fourth information.

18 . A base station apparatus that is configured to communicate with a terminal apparatus by using a plurality of cells, comprising:
transmission circuitry configured to and/or programmed
to transmit a Radio Resource Control (RRC) message which includes at least sixth information indicating a first uplink-downlink configuration,
to transmit a higher layer signal which includes at least first information indicating Radio Network Temporary Identifier (RNTI), second information indicating periodicity to transmit a Physical Downlink Control CHannel (PDCCH) with the RNTI, and third information indicating subframes to transmit the PDCCH with the RNTI within the periodicity, and
to transmit, for each of the plurality of cells, fourth information indicating an index which indicates one of M pieces of fifth information, each of the M pieces of fifth information indicating a second uplink-downlink configuration, and
control circuitry configured to and/or programmed to configure the subframes to transmit the PDCCH with the RNTI based on at least the higher layer signal, wherein the transmission circuitry is configured to and/or programmed to transmit, in the configured subframes, the PDCCH with the RNTI in a common search space on a predetermined cell which is one of the plurality of cells, the PDCCH with the RNTI including at least the M pieces of fifth information, and each of the configured subframes is indicated by the first uplink-downlink configuration as a downlink subframe in a case where the predetermined cell is a Time Division Duplex (TDD) cell.

19 . A communication method used in a terminal apparatus that is configured to communicate with a base station apparatus by using a plurality of cells, the communication method comprising:
receiving a Radio Resource Control (RRC) message which includes at least sixth information indicating a first uplink-downlink configuration, receiving a higher layer signal which includes at least first information indicating Radio Network Temporary Identifier (RNTI), second information indicating periodicity to monitor a Physical Downlink Control CHannel (PDCCH) with the RNTI, and third information indicating subframes to monitor the PDCCH with the RNTI within the periodicity, receiving, for each of the plurality of cells, fourth information used to determine an index which indicates one of M pieces of fifth information, each of the M pieces of fifth information indicating a second uplink-downlink configuration, configuring the subframes to monitor the PDCCH with the RNTI based on at least the received higher layer signal, monitoring, in the configured subframes, the PDCCH with the RNTI in a common search space on a predetermined cell which is one of the plurality of cells, receiving the M pieces of fifth information included in the PDCCH with the RNTI, and determining, for each of the plurality of cells, one second uplink-downlink configuration from the M pieces of fifth information based on the fourth information, wherein each of the configured subframes is indicated by the first uplink-downlink configuration as a downlink subframe in a case where the predetermined cell is a Time Division Duplex (TDD) cell.

20 . A communication method used in a base station apparatus that is configured to communicate with a terminal apparatus by using a plurality of cells, the communication method comprising:
transmitting a Radio Resource Control (RRC) message which includes at least sixth information indicating a first uplink-downlink configuration, transmitting a higher layer signal which includes at least first information indicating Radio Network Temporary Identifier (RNTI), second information indicating periodicity to transmit a Physical Downlink Control CHannel (PDCCH) with the RNTI, and third information indicating subframes to transmit the PDCCH with the RNTI within the periodicity, transmitting, for each of the plurality of cells, fourth information indicating an index which indicates one of M pieces of fifth information, each of the M pieces of fifth information indicating a second uplink-downlink configuration, and configuring the subframes to transmit the PDCCH with the RNTI based on at least the higher layer signal, and transmitting, in the configured subframes, the PDCCH with the RNTI in a common search space on a predetermined cell which is one of the plurality of cells, the PDCCH with the RNTI including at least the M pieces of fifth information, wherein each of the configured subframes is indicated by the first uplink-downlink configuration as a downlink subframe in a case where the predetermined cell is a Time Division Duplex (TDD) cell.

Assignees

• Sharp Kk

Inventors

• Suzuki Shoichi
• Imamura Kimihiko
• Aiba Tatsushi
• Yokomakura Kazunari

Classifications

• H04W72/23

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

• H04L5/0023

  Time-frequency-space · CPC title

• H04L5/001

  the frequencies being arranged in component carriers · CPC title

• H04L5/0053

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

• H04L5/0044

  Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH · CPC title