HARQ-ACK signal transmission in response to detection of control channel type in case of multiple control channel types

• US 10,602,487 B2
• Filed: 12/04/2018
• Issued: 03/24/2020
• Est. Priority Date: 03/05/2012
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Papasakellariou, Aris, Cho, Joon-Young
• Primary Examiner(s): Onamuti, Gbemileke J
• Assistant Examiner(s): Dewan, Sanjay K
• Application Number:
  US16/209,485
• Publication Number:
  US 20190110282A1
• Time in Patent Office: 476 Days
• Field of Search: 370329
• 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 1/1896 ARQ related signaling
• CPC Class Codes: H04W 72/20 Control channels or signalling for resource management
• CPC Class Codes: H04W 72/21 in the uplink direction of a wireless link, i.e. towards the network
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal

Abstract

Methods and apparatuses are provided for wireless communications. Configuration information comprising a resource start offset is received. Downlink control information (DCI) transmitted using a first antenna port of a base station is received on an enhanced physical downlink control channel (EPDCCH) using at least one of control channel elements (CCEs). A resource of a physical uplink control channel (PUCCH) is determined based on a first CCE of the at least one of the CCEs, the first antenna port, information in the DCI, and the resource start offset in the configuration information, in response to a transmission type of the EPDCCH being localized transmission. A hybrid automatic repeat request acknowledgement (HARQ-ACK) signal is transmitted on the resource to the base station.

Claims

1. A method for wireless communications, the method comprising:

receiving configuration information indicating at least one set of resources related to a physical uplink control channel (PUCCH) by higher layer signaling;

receiving downlink control information (DCI) on a physical downlink control channel (PDCCH) using at least one of control channel elements (CCEs) from a base station;

determining a resource of the PUCCH based on a first CCE of the at least one of the CCEs, information in the DCI, and information related to the at least one set of resources identified by the configuration information; and

transmitting hybrid automatic repeat request acknowledgement (HARQ-ACK) information on the determined resource to the base station.

2. The method of claim 1, wherein the information included in the DCI is a resource indicator indicating an integer value related to the resource of the PUCCH.

3. The method of claim 1, wherein,

in response to a transmission type of the PDCCH being localized transmission, an index of the resource of the PUCCH is determined based on an index of the first CCE, a value of the resource indicator in the DCI, a value determined from the at least set of resources identified by the configuration information, and an antenna port used for the localized transmission of the PDCCH.

4. A method for wireless communications, the method comprising:

transmitting configuration information indicating at least one set of resources related to a physical uplink control channel (PUCCH) by higher layer signaling;

transmitting, to a user equipment (UE), downlink control information (DCI) comprising a resource indicator related to the PUCCH on a physical downlink control channel (PDCCH) using at least one of control channel elements (CCEs);

determining a resource of the PUCCH based on a first CCE of the at least one of the CCEs, the resource indicator included in the DCI, and information related to the at least one set of resources identified by the configuration information; and

receiving, from the UE, hybrid automatic repeat request acknowledgement (HARQ-ACK) information on the determined resource.

5. The method of claim 4, wherein the information included in the DCI is a resource indicator indicating an integer value related to the resource of the PUCCH.

6. The method of claim 4, wherein,

in response to a transmission type of the PDCCH being localized transmission, an index of the resource of the PUCCH is determined based on an index of the first CCE, a value of the resource indicator in the DCI, a value determined from the at least set of resources identified by the configuration information, and an antenna port used for the localized transmission of the PDCCH.

7. An apparatus of a user equipment (UE) for wireless communications, the apparatus comprising:

a receiver configured to receive configuration information indicating at least one set of resources related to a physical uplink control channel (PUCCH) by higher layer signaling, and receive downlink control information (DCI) comprising a resource indicator related to the PUCCH on a physical downlink control channel (PDCCH) using at least one of control channel elements (CCEs) from a base station;

a processor configured to determine a resource of the PUCCH based on a first CCE of the at least one of the CCEs, the resource indicator included in the DCI, and information related to the at least one set of resources identified by the configuration information; and

a transmitter configured to transmit hybrid automatic repeat request acknowledgement (HARQ-ACK) information on the determined resource to the base station.

8. The apparatus of claim 7, wherein the information included in the DCI is a resource indicator indicating an integer value related to the resource of the PUCCH.

9. The apparatus of claim 7, wherein,

in response to a transmission type of the PDCCH being localized transmission, an index of the resource of the PUCCH is determined based on an index of the first CCE, a value of the resource indicator in the DCI, a value determined from the at least set of resources identified by the configuration information, and an antenna port used for the localized transmission of the PDCCH.

10. An apparatus of a base station for wireless communications, the apparatus comprising:

a transmitter configured to transmit configuration information indicating at least one set of resources related to a physical uplink control channel (PUCCH) by higher layer signaling, and transmit, to a user equipment (UE), downlink control information (DCI) comprising a resource indicator related to the PUCCH on a physical downlink control channel (PDCCH) using at least one of control channel elements (CCEs);

a processor configured to determine a resource of the PUCCH based on a first CCE of the at least one of the CCEs, the resource indicator included in the DCI, and information related to the at least one set of resources identified by the configuration information; and

a receiver configured to receive, from the UE, hybrid automatic repeat request acknowledgement (HARQ-ACK) information on the determined resource.

11. The apparatus of claim 10, wherein the information included in the DCI is a resource indicator indicating an integer value related to the resource of the PUCCH.

12. The apparatus of claim 10, wherein,

in response to a transmission type of the PDCCH being localized transmission, an index of the resource of the PUCCH is determined based on an index of the first CCE, a value of the resource indicator in the DCI, a value determined from the at least set of resources identified by the configuration information, and an antenna port used for the localized transmission of the PDCCH.