METHOD AND APPARATUS FOR ALLOCATING RESOURCE OF RESPONSE CONTROL INFORMATION IN WIRELESS COMMUNICATION SYSTEM

• US 20140079008A1
• Filed: 04/16/2012
• Published: 03/20/2014
• Est. Priority Date: 05/02/2011
• Status: Abandoned Application

• Current Assignee: Pantech Corporation (Ideahub, Inc.)
• Original Assignee: Pantech Corporation (Ideahub, Inc.)
• Inventors: Park, Donghyun
• Application Number:
  US14/114,929
• Publication Number:
  US 20140079008A1
• Time in Patent Office: Days
• US Class Current: 370/329
• 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: H04L 5/001 the frequencies being arranged in component carriers
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04L 5/0094 Indication of how sub-channels of the path are allocated
• CPC Class Codes: H04W 72/21 in the uplink direction of a wireless link, i.e. towards the network

Abstract

A method and apparatus for allocating a resource of response control information in a wireless communication system are disclosed. A method for allocating the resource of the response control in formation comprises: including in one downlink control channel information for indicating the response control information with regard to data which is transmitted from at least two component carriers; transmitting at least two data channels including the control channel and the data to a user equipment; and receiving from the user equipment the response control information, which is included in the resource of the response control information that is indicated, and deciding whether to retransmit same. The information for indicating the resource of the response control information with respect to data, which is transmitted from a secondary component carrier (SCC), from the data is indicated by being included in the control channel or through signaling by an upper layer.

Claims

1. A method of allocating a resource of response control information, the method comprising the steps of:

including, in a single downlink control channel, information indicating a resource of response control information with respect to data transmitted through two or more component carriers;

transmitting, to a user equipment, the control channel and two or more data channels including the data; and

receiving, from the user equipment, the response control information included in the indicated resource of response control information, and determines whether to perform retransmission,

wherein information that indicates a resource of response control information with respect to data transmitted on an Secondary Component Carrier (SCC) from among the data is included in the control channel, or is indicated by signaling of a higher layer.

2. The method of claim 1, wherein the data transmitted on the SCC corresponds to 1 codeword (CW) or 2 CWs;

and

when the information indicating the resource of the response control information is included in the control channel, the resource of the response control information with respect to the 1 CW or 2 CWs is indicated by an ACK/NACK Resource Indicator (ARI) field that is independent from the control channel, is indicated by a Carrier Indicator Field (CIF) of the control channel, or is derived from a number of Control Channel Elements (CCEs) of the control channel.

3. The method of claim 1, wherein, when the data is transmitted in a state in which Semi-Persistent Scheduling (SPS) transmission is activated, the information indicating the resource of the response control information is included in a Transmit Power Control (TPC) field, which is a field for controlling power.

4. A method of allocating a resource of response control information, the method comprising the steps of:

receiving, from a base station, a single downlink control channel and a data channel that is indicated by the downlink control channel and is transmitted through two or more component carriers; and

calculating, from the received control channel, information indicating a resource to which response control information with respect to data included in the data channel is to be included, and including the response control information with respect to the data in the resource for transmission to the base station,

wherein information indicating a resource of response control information with respect to data transmitted on a Secondary Component Carrier (SCC) from among the data is included in the single control channel, or is indicated by signaling of a higher layer.

5. The method of claim 4, wherein the data transmitted on the SCC corresponds to 1 codeword (CW) or 2 CWs;

and

when the resource of the response control information is included in the control channel, the resource of the response control information with respect to 1 CW or 2 CWs is indicated by an ACK/NACK Resource Indicator (ARI) field that is independent from the control channel, is indicated by a Carrier Indicator Field (CIF) of the control channel, or is derived from a number of Control Channel Elements (CCEs) of the control channel.

6. The method of claim 4, wherein, when the data is transmitted in a state in which Semi-Persistent Scheduling (SPS) transmission is activated, indication information associated with the resource of the response control information is included in a Transmit Power Control (TPC) field that is a field for controlling power.

7. A method of allocating a resource of response control information, the method comprising the steps of:

including information indicating a resource of response control information with respect to one or more pieces of data transmitted on a Primary Component Carrier (PCC) and information indicating a resource of response control information with respect to two or more pieces of data transmitted on a Secondary Component Carrier (SCC) in a downlink control channel of the PCC or in downlink control channels of the PCC and an SCC;

transmitting, to a user equipment, a control channel and three or more data channels including the data; and

receiving, from the user equipment, response control information included in the indicated response control information resource, and determining whether to perform retransmission,

wherein the information indicating the resource of the response control information with respect to the data transmitted on the SCC is included in the control channel or is indicated by signaling of a higher layer.

8. The method of claim 7, wherein, in a case in which the data transmitted on the SCC corresponds to 1 codeword (CW) or 2 CWs, when information indicating the resource of the response control information is included in the control channel, the resource of the response control information with respect to the 1 CW or 2 CWs is indicated by an ACK/NACK Resource Indicator (ARI) field that is independent from the control channel, is indicated by a Carrier Indicator Field (CIF) of the control channel, or is derived from a number of Control Channel Elements (CCEs) of the control channel;

and

in a case in which the data is transmitted in a state in which Semi-Persistent Scheduling (SPS) transmission is activated, the information indicating the resource of the response control information is included in a Transmit Power Control (TPC) field that is a field for controlling power.

9. A method of allocating a resource of response control information, the method comprising the steps of:

receiving, from a base station, a control channel and three or more data channels including data, wherein information indicating a resource of response control information with respect to one or more pieces of data transmitted on a Primary Component Carrier (PCC) and information indicating a resource of response control information with respect to two or more pieces of data transmitted on a Secondary Component Carrier (SCC) are included in a downlink control channel of the PCC or in downlink control channels of the PCC and an SCC; and

calculating, from the received control channel, information that indicates a resource to which response control information with respect to the data included in the data channel is to be included, and including the response control information with respect to the data in the resource for transmission to the base station,

wherein the information indicating the resource of the response control information with respect to the data transmitted on the SCC is included in the control channel or is indicated by signaling of a higher layer.

10. The method of claim 9, wherein, in a case in which the data transmitted on the SCC corresponds to 1 codeword (CW) or 2 CWs, when information indicating the resource of the response control information is included in the control channel, the resource of the response control information with respect to 1 CW or 2 CWs is indicated by an ACK/NACK Resource Indicator (ARI) field that is independent from the control channel, is indicated by a Carrier Indicator Field (CIF) of the control channel, or is derived from a number of Control Channel Elements (CCEs) of the control channel;

and

in a case in which the data is transmitted in a state in which Semi-Persistent Scheduling (SPS) transmission is activated, information indicating the resource of the response control information is included in a Transmit Power Control (TPC) field that is a field for controlling power.

11. A base station in a wireless system that uses one or more component carriers, the base station comprising:

a response control information resource allocating unit to calculate information indicating a resource of response control information with respect to data transmitted through two or more component carriers;

a controller to include the information in a single downlink control channel; and

a transceiving unit to transmit the control channel and two or more data channels including the data to a user equipment, and to receive, from the user equipment, the response control information included in the indicated resource of response control information,

wherein the controller determines whether to perform retransmission using the received response control information; and

information indicating a resource of response control information with respect to data transmitted on a Secondary Component Carrier (SCC) from among the data is included in the control channel or is indicated by signaling of a higher layer.

12. The base station of claim 11, wherein, in a case in which the data transmitted on the SCC corresponds to 1 codeword (CW) or 2 CWs, when information indicating the resource of the response control information is included in the control channel, the resource of the response control information with respect to the 1 CW or 2 CWs is indicated by an ACK/NACK Resource Indicator (ARI) field that is independent from the control channel, is indicated by a Carrier Indicator Field (CIF) of the control channel, or is derived from a number of Control Channel Elements (CCEs) of the control channel;

and

in a case in which the data is transmitted in a state in which Semi-Persistent Scheduling (SPS) transmission is activated, the controller includes information indicating the resource of the response control information in a Transmit Power Control (TPC) field that is a field for controlling power.

13. A user equipment, comprising:

a transceiving unit to receive, from a base station, a single downlink control channel and a data channel that is indicated by the downlink control channel and is transmitted through two or more component carriers;

a response control information resource indicator extracting unit to calculate, from the received control channel, information indicating a resource to which response control information with respect to data included in the data channel is to be included; and

a controller to include the response control information with respect to the data in the resource,

wherein the transceiving unit transmits, to the base station, the resource including the response control information as a wireless signal, and

information indicating a resource of response control information with respect to data transmitted on a Secondary component Carrier (SCC) from among the data is included in the control channel or is indicated by signaling of a higher layer.

14. The user equipment of claim 13, wherein, when the data transmitted on the SCC corresponds to 1 codeword (CW) or 2 CWs, the response control information resource indicator extracting unit calculates the information of the resource of the response control information with respect to the 1 CW or 2 CWs from an ACK/NACK Resource Indicator (ARI) field that is independent from the control channel, a Carrier Indicator Field (CIF) of the control channel, or a number of Control Channel Elements (CCEs) of the control channel;

and

when the data is transmitted in a state in which Semi-Persistent Scheduling (SPS) transmission is activated, the response control information resource indicator extracting unit extracts indication information associated with the resource of the response control information from a Transmit Power Control (TPC) field that is a field for controlling power.