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

• US 10,743,335 B2
• Filed: 04/25/2016
• Issued: 08/11/2020
• Est. Priority Date: 04/28/2015
• Status: Active Grant

• Current Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Original Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Inventors: Aiba, Tatsushi, Suzuki, Shoichi, Yokomakura, Kazunari, Takahashi, Hiroki
• Primary Examiner(s): Wyllie, Christopher T
• Application Number:
  US15/567,983
• Publication Number:
  US 20180115986A1
• Time in Patent Office: 1,569 Days
• Field of Search: None
• CPC Class Codes: H04J 11/00 Orthogonal multiplex systems, e.g. using WALSH codesH04J13/00 takes precedence
• CPC Class Codes: H04L 1/1812 Hybrid protocols; Hybrid automatic repeat request [HARQ]
• CPC Class Codes: H04L 1/1861 Physical mapping arrangements for ACK signaling see also H04L5/0053
• CPC Class Codes: H04L 5/0055 Physical resource allocation for ACK/NACK for physical mapping arrangements in ARQ protocols H04L1/1861
• CPC Class Codes: H04L 5/14 Two-way operation using the same type of signal, i.e. duplex
• CPC Class Codes: H04W 28/04 Error control
• CPC Class Codes: H04W 72/04 Wireless resource allocation
• CPC Class Codes: H04W 72/20 Control channels or signalling for resource management
• CPC Class Codes: H04W 88/02 Terminal devices
• CPC Class Codes: H04W 88/08 Access point devices

Abstract

Aspects of the disclosure relate to a terminal device including a transmission unit configured to transmit a HARQ-ACK using a first PUCCH resource and a PUCCH format (3) with respect to PDSCH transmission on a secondary cell having a cell index less than or equal to a first predetermined value, and transmit a HARQ-ACK by using a second PUCCH resource and a PUCCH format (4) with respect to PDSCH transmission on a secondary cell having a cell index greater than the first predetermined value. The first predetermined value may be the value of a fourth cell index when arranging the values of the cell indices set by a base station device in ascending order.

Claims

1. A terminal device which communicates with a first base station device using a first serving cell group (CG) and with a second base station device using a second serving CG,

each of the first serving CG and the second serving CG includes a physical uplink control channel (PUCCH) serving cell and at least one non-PUCCH serving cell,

the PUCCH serving cell is a serving cell used for a PUCCH,

the non-PUCCH serving cell is a serving cell not used for the PUCCH,

the terminal device comprising:

receiving circuitry configured to receive, for each of the first serving CG and the second serving CG;

a radio resource control (RRC) message including i) either one of first information or second information, and ii) at least one of third information and fourth information, the first information indicating a first behavior, the second information indicating a second behavior, the third information regarding a first PUCCH resource configuration, and the fourth information regarding a second PUCCH resource configuration, and

a downlink control information (DCI) format for scheduling a physical downlink shared channel (PDSCH), the DCI format including a transmission power command (TPC) for the PUCCH; and

transmitting circuitry configured to transmit, on the PUCCH for each of the first serving CG and the second serving CG, hybrid automatic repeat request-acknowledgment (HARQ-ACK) for a PDSCH transmission on the non-PUCCH serving cell, the PDSCH transmission on the non-PUCCH serving cell being indicated by a detection of a physical downlink control channel (PDCCH), wherein

a) in a case that the RRC message includes the first information, the transmitting circuitry is configured to perform the first behavior in which;

the transmitting circuitry determines a first PUCCH resource based on the TPC and the third information, and transmits the HARQ-ACK using the first PUCCH resource for a number of bits of the HARQ-ACK not more than a predetermined value, and

the transmitting circuitry determines a second PUCCH resource based on the TPC and the fourth information, and transmits the HARQ-ACK using the second PUCCH resource for the number of bits of the HARQ-ACK more than the predetermined value, and

b) in a case that the RRC message includes the second information, the transmitting circuitry is configured to perform the second behavior in which;

the transmitting circuitry determines the second PUCCH resource based on the TPC and the fourth information, and transmits the HARQ-ACK using the second PUCCH resource without using the first PUCCH resource.

2. The terminal device according to claim 1, wherein

the HARQ-ACK includes information indicating a positive acknowledgment or a negative acknowledgment.

3. A first base station device which communicates with a terminal device using a first serving cell group (CG), the terminal device communicating with a second base station device using a second serving CG,

each of the first serving CG and the second serving CG includes a physical uplink control channel (PUCCH) serving cell and at least one non-PUCCH serving cell,

the PUCCH serving cell is a serving cell used for a PUCCH,

the non-PUCCH serving cell is a serving cell not used for the PUCCH,

the first base station device comprising:

transmitting circuitry configured to transmit for the first serving CG;

a radio resource control (RRC) message including i) either one of first information or second information, and ii) at least one of third information and fourth information, the first information indicating a first behavior, the second information indicating a second behavior, the third information regarding a first PUCCH resource configuration, and the fourth information regarding a second PUCCH resource configuration, and

a downlink control information (DCI) format for scheduling a physical downlink shared channel (PDSCH), the DCI format including a transmission power command (TPC) for the PUCCH; and

receiving circuitry configured to receive, on the PUCCH for the first serving CG, hybrid automatic repeat request-acknowledgment (HARQ-ACK) for a PDSCH transmission on the non-PUCCH serving cell, the PDSCH transmission on the non-PUCCH serving cell being scheduled by using the DCI format, wherein

a) in a case that the RRC message includes the first information, the receiving circuitry is configured to perform the first behavior in which;

the receiving circuitry determines a first PUCCH resource based on the TPC and the third information, and receives the HARQ-ACK using the first PUCCH resource for a number of bits of the HARQ-ACK not more than a predetermined value, and

the receiving circuitry determines a second PUCCH resource based on the TPC and the fourth information, and receives the HARQ-ACK using the second PUCCH resource for the number of bits of the HARQ-ACK more than the predetermined value, and

b) in a case that the RRC message includes the second information, the receiving circuitry is configured to perform the second behavior in which;

the receiving circuitry determines the second PUCCH resource based on the TPC and the fourth information, and receives the HARQ-ACK using the second PUCCH resource without using the first PUCCH resource.

4. The first base station device according to claim 3, wherein

the HARQ-ACK includes information indicating a positive acknowledgment or a negative acknowledgment.

5. A communication method of a terminal device which communicates with a first base station device using a first serving cell group (CG) and with a second base station device using a second serving CG,

each of the first serving CG and the second serving CG includes a physical uplink control channel (PUCCH) serving cell and at least one non-PUCCH serving cell,

the PUCCH serving cell is a serving cell used for a PUCCH,

the non-PUCCH serving cell is a serving cell not used for the PUCCH,

the communication method comprising:

receiving, for each of the first serving CG and the second serving CG,

a radio resource control (RRC) message including i) either one of first information or second information, and ii) at least one of third information and fourth information, the first information indicating a first behavior, the second information indicating a second behavior, the third information regarding a first PUCCH resource configuration, and the fourth information regarding a second PUCCH resource configuration, and

a downlink control information (DCI) format for scheduling a physical downlink shared channel (PDSCH), the DCI format including a transmission power command (TPC) for the PUCCH; and

transmitting, on the PUCCH for each of the first serving CG and the second serving CG, hybrid automatic repeat request-acknowledgment (HARQ-ACK) for a PDSCH transmission on the non-PUCCH serving cell, the PDSCH transmission on the non-PUCCH serving cell being indicated by a detection of a physical download control channel (PDCCH) for either one of the first behavior or the second behavior, wherein

a) in a case of the RRC message including the first information, performing the first behavior comprising;

a step of determining a first PUCCH resource based on the TPC and the third information, and a step of transmitting the HARQ-ACK using the first PUCCH resource for a number of bits of the HARQ-ACK not more than a predetermined value, and

a step of determining a second PUCCH resource based on the TPC and the fourth information, and a step of transmitting the HARQ-ACK using the second PUCCH resource for a number of bits of the HARQ-ACK more than the predetermined value, and

b) in a case of the RRC message including the second information, performing the second behavior comprising;

a step of determining the second PUCCH resource based on the TPC and the fourth information, and a step of transmitting the HARQ-ACK using the second PUCCH resource without using the first PUCCH resource.

6. The communication method according to claim 5, wherein

the HARQ-ACK includes information indicating a positive acknowledgment or a negative acknowledgment.

7. A communication method of a first base station device which communicates with a terminal device using a first serving cell group (CG) and the terminal device communicating with a second base station device using a second serving CG,

each of the first serving CG and the second serving CG includes a physical uplink control channel (PUCCH) serving cell and at least one non-PUCCH serving cell,

the PUCCH serving cell is a serving cell used for a PUCCH,

the non-PUCCH serving cell is a serving cell not used for the PUCCH,

the communication method comprising:

transmitting, for the first serving CG,

a radio resource control (RRC) message including i) either one of first information or second information, and ii) at least one of third information and fourth information, the first information indicating a first behavior, the second information indicating a second behavior, the third information regarding a first PUCCH resource configuration, and the fourth information regarding a second PUCCH resource configuration, and

a downlink control information (DCI) format for scheduling a physical downlink shared channel (PDSCH), the DCI format including a transmission power command (TPC) for the PUCCH; and

receiving, on the PUCCH for the first serving CG, hybrid automatic repeat request-acknowledgment (HARQ-ACK) for a PDSCH transmission on the non-PUCCH serving cell, the PDSCH transmission on the non-PUCCH serving cell being scheduled by using the DCI format, wherein

a) in a case of the RRC message including the first information, performing the first behavior comprising;

a step of determining a first PUCCH resource based on the TPC and the third information, and a step of the receiving the HARQ-ACK using the first PUCCH resource for a number of bits of the HARQ-ACK not more than a predetermined value, and

a step of determining a second PUCCH resource based on the TPC and the fourth information, and a step of receiving the HARQ-ACK using the second PUCCH resource for a number of bits of the HARQ-ACK more than the predetermined value, and

b) in a case of the RRC message including the second information, performing the second behavior comprising;

a step of determining the second PUCCH resource based on the TPC and the fourth information, and a step of the receiving the HARQ-ACK using the second PUCCH resource without using the first PUCCH resource.

8. The communication method according to claim 7, wherein

the HARQ-ACK includes information indicating a positive acknowledgment or a negative acknowledgment.