TERMINAL DEVICE, BASE STATION DEVICE, COMMUNICATION METHOD, AND INTEGRATED CIRCUIT

• US 20180115986A1
• Filed: 04/25/2016
• Published: 04/26/2018
• 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
• Granted Patent: US 10,743,335 B2
• Time in Patent Office: Days
• 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

1-16. -16. (canceled)

17. A terminal device which communicates with a base station device using serving cells including a primary cell and a secondary cell, the terminal device comprising:

receiving circuitry configured to receive a radio resource control (RRC) message; and

transmitting circuitry configured to transmit hybrid automatic repeat request-acknowledgment (HARQ-ACK) for a physical downlink shared channel (PDSCH) transmission on the secondary cell, the PDSCH transmission on the secondary cell being indicated by a detection of a physical downlink control channel (PDCCH), wherein

for the transmission of the HARQ-ACK for the PDSCH transmission on the secondary cell, the transmitting circuitry is configured to perform any one of a first behavior and a second behavior based on information included in the RRC message,

the first behavior is a behavior which performs any one of the transmission of the HARQ-ACK using a first physical uplink control channel (PUCCH) format and the transmission of the HARQ-ACK using a second PUCCH format, and

the second behavior is a behavior which performs the transmission the HARQ-ACK always using the second PUCCH format.

18. The terminal device according to claim 17, wherein

the any one of the transmission of the HARQ-ACK using the first PUCCH format and the transmission of the HARQ-ACK using the second PUCCH format is performed based on a number of bits of the HARQ-ACK, the number of bits of the HARQ-ACK being given by serving cell(s) on which PDSCH(s) is scheduled.

19. The terminal device according to claim 17, wherein

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

20. A base station device which communicates with a terminal device using serving cells including a primary cell and a secondary cell, the base station device comprising:

transmitting circuitry configured to transmit a radio resource control (RRC) message; and

receiving circuitry configured to receive hybrid automatic repeat request-acknowledgment (HARQ-ACK) for a physical downlink shared channel (PDSCH) transmission on the secondary cell, the PDSCH transmission on the secondary cell being scheduled by using a physical downlink control channel (PDCCH), wherein

for the reception of the HARQ-ACK for the PDSCH transmission on the secondary cell, the receiving circuitry is configured to perform any one of a first behavior and a second behavior based on information included in the RRC message,

the first behavior is a behavior which performs any one of the reception of the HARQ-ACK using a first physical uplink control channel (PUCCH) format and the reception of the HARQ-ACK using a second PUCCH format, and

the second behavior is a behavior which performs the reception the HARQ-ACK always using the second PUCCH format.

21. The base station device according to claim 20, wherein

the any one of the reception of the HARQ-ACK using the first PUCCH format and the reception of the HARQ-ACK using the second PUCCH format is performed based on a number of bits of the HARQ-ACK, the number of bits of the HARQ-ACK being given by serving cell(s) on which PDSCH(s) is scheduled.

22. The base station device according to claim 20, wherein

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

23. A communication method of a terminal device which communicates with a base station device using serving cells including a primary cell and a secondary cell, the communication method comprising:

receiving a radio resource control (RRC) message; and

transmitting hybrid automatic repeat request-acknowledgment (HARQ-ACK) for a physical downlink shared channel (PDSCH) transmission on the secondary cell, the PDSCH transmission on the secondary cell being indicated by a detection of a physical downlink control channel (PDCCH), wherein

for the transmission of the HARQ-ACK for the PDSCH transmission on the secondary cell, the transmitting circuitry is configured to perform any one of a first behavior and a second behavior based on information included in the RRC message,

the first behavior is a behavior which performs any one of the transmission of the HARQ-ACK using a first physical uplink control channel (PUCCH) format and the transmission of the HARQ-ACK using a second PUCCH format, and

the second behavior is a behavior which performs the transmission the HARQ-ACK always using the second PUCCH format.

24. The communication method according to claim 23, wherein

the any one of the transmission of the HARQ-ACK using the first PUCCH format and the transmission of the HARQ-ACK using the second PUCCH format is performed based on a number of bits of the HARQ-ACK, the number of bits of the HARQ-ACK being given by serving cell(s) on which PDSCH(s) is scheduled.

25. The communication method according to claim 23, wherein

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

26. A communication method of a base station device which communicates with a terminal device using serving cells including a primary cell and a secondary cell, the communication method comprising:

transmitting a radio resource control (RRC) message; and

receiving hybrid automatic repeat request-acknowledgment (HARQ-ACK) for a physical downlink shared channel (PDSCH) transmission on the secondary cell, the PDSCH transmission on the secondary cell being scheduled by using a physical downlink control channel (PDCCH), wherein

for the reception of the HARQ-ACK for the PDSCH transmission on the secondary cell, the receiving circuitry is configured to perform any one of a first behavior and a second behavior based on information included in the RRC message,

the first behavior is a behavior which performs any one of the reception of the HARQ-ACK using a first physical uplink control channel (PUCCH) format and the reception of the HARQ-ACK using a second PUCCH format, and

the second behavior is a behavior which performs the reception the HARQ-ACK always using the second PUCCH format.

27. The communication method according to claim 26, wherein

the any one of the reception of the HARQ-ACK using the first PUCCH format and the reception of the HARQ-ACK using the second PUCCH format is performed based on a number of bits of the HARQ-ACK, the number of bits of the HARQ-ACK being given by serving cell(s) on which PDSCH(s) is scheduled.

28. The communication method according to claim 26, wherein

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