Method and device for transmitting response information, and resource allocation for response information transmission according to transmission conditions in a wireless communication system
A method for allocating a resource for response information transmission and transmitting according to transmission conditions in a wireless communication system according to the present invention comprises the steps of: setting a specific field value of a control channel depending on the allocation method by determining a transmission method or transmission quantity of data to be transmitted to a user's terminal from a data channel, a method of generating response information of the data according to the transmission quantity or transmission method, and an allocation method for indicating the response information resource; transmitting the data channel including the transmitting data and the control channel to the user's terminal; confirming the response information, which is transmitted from a resource allocated by the allocation method, for the data transmitted from the user's terminal; and determining whether the transmitted data area retransmitted according to the confirmed response information.
1. A method of allocating a resource for response information transmission based on a transmission environment in a wireless communication system, the method comprising:
determining a transmission scheme or an amount of data to be transmitted from a data channel to a user equipment, determining, based on the transmission scheme or the amount of data to be transmitted, a scheme of generating response information with respect to the data and an allocation scheme indicating a response information resource, and setting a value of a predetermined field of a control channel based on the allocation scheme;
transmitting, to the user equipment, the control channel and the data channel including the data to be transmitted;
determining response information transmitted from the user equipment with respect to the transmitted data in the resource allocated based on the allocation scheme; and
determining whether to retransmit the transmitted data based on the determined response information,
wherein the allocation scheme corresponds to one of an implicit allocation scheme that implicitly performs calculation in a first field of the control channel and an explicit allocation scheme that explicitly performs calculation in a second field of the control channel.
2. The method as claimed in claim 1 , wherein the first field is applied to calculation of an allocation resource of the control channel, and the second field is applied to calculation of power control information of the control channel.
3. The method as claimed in claim 1 , wherein, when two or more response information resources are indicated based on the implicit allocation scheme, a resource adjacent to a resource implicitly allocated in the first field is allocated as the response information resource.
4. The method as claimed in claim 1 , wherein, when two or more response information resources are indicated based on the explicit allocation scheme, the second field includes indication information indicating a set of two or more resources.
5. The method as claimed in claim 1 , wherein the scheme of generating the response information corresponds to one of a scheme of generating response information by bundling a plurality of pieces of response information and a scheme of generating response information by multiplexing a plurality of pieces of response information.
6. A method of allocating a resource for response information transmission based on a transmission environment, and performing transmission in a wireless communication system, the method comprising:
receiving, by a user equipment from a base station, a control channel and a data channel which the control channel instructs data transmission;
determining a transmission scheme or an amount of received data, determining, based on the transmission scheme or the amount of received data, a scheme of generating response information with respect to the data and an allocation scheme indicating a response information resource, and calculating response information resource indication information using a value of a predetermined field of the control channel based on the allocation scheme; and
generating the response information resource based on the scheme of generating the response information, and including the generated response information in a resource indicated by the calculated indication information for transmission to the base station,
wherein the allocation scheme corresponds to one of an implicit allocation scheme that implicitly performs calculation in a first field of the control channel and an explicit allocation scheme that explicitly performs calculation in a second field of the control channel.
7. The method as claimed in claim 6 , wherein the first field is applied to calculation of an allocation resource of the control channel, and the second field is applied to calculation of power control information of the control channel.
8. The method as claimed in claim 6 , wherein two or more response information resources are indicated based on the implicit allocation scheme, a resource adjacent to a resource implicitly allocated in the first field is allocated as the response information resource.
9. The method as claimed in claim 6 , wherein, when two or more response information resources are indicated based on the explicit allocation scheme, the second field includes indication information indicating a set of two or more resources.
10. The method as claimed in claim 6 , wherein generating the response information corresponds to one of a scheme of generating response information by bundling a plurality of pieces of response information and a scheme of generating response information by multiplexing a plurality of pieces of response information.
11. A base station, comprising:
a response information resource determining unit to determine a transmission scheme or an amount of data to be transmitted from a data channel to a user equipment, to determine, based on the transmission scheme or the amount of data to be transmitted, a scheme of generating response information with respect to the data and an allocation scheme indicating a response information resource;
a controller to set a value of a predetermined field of a control channel based on the determined allocation scheme; and
a transceiving unit to transmit the control channel and a data channel including data to be transmitted to the user equipment, and to receive, from the user equipment, response information transmitted with respect to the transmitted data in a resource allocated based on the allocation scheme,
wherein the controller determines the transmitted response information and determines whether to retransmit the transmitted data based on the determined response information, and the allocation scheme corresponds to one of an implicit allocation scheme that implicitly performs calculation in a first field of the control channel and an explicit allocation scheme that explicitly performs calculation in a second field of the control channel, and the first field is applied to calculation of an allocation resource of the control channel and the second field is applied to calculation of power control information of the control channel.
12. The base station as claimed in claim 11 , wherein generating the response information corresponds to one of a scheme of generating response information by bundling a plurality of pieces of response information and a scheme of generating response information by multiplexing a plurality of pieces of response information.
13. A user equipment, comprising:
a transceiving unit to receive, by the user equipment from a base station, a control channel and a data channel which the control channel instructs data transmission;
a response information resource calculator to determine a transmission scheme or an amount of received data, to determine, based on the transmission scheme or the amount of received data, a scheme of generating response information with respect to the data and an allocation scheme to indicate a response information resource, and to calculate response information resource indication information using a value of a predetermined field of the control channel based on the allocation scheme; and
a controller to generate the response information resource based on the scheme of generating the response information, and to include the generated response information in a resource indicated by the calculated indication information for generation of a control channel,
wherein the controller controls the transceiving unit to transmit the control channel to the base station, the allocation scheme corresponds to one of an implicit allocation scheme that implicitly performs calculation in a first field of the control channel or an explicit allocation scheme that explicitly performs calculation in a second field of the control channel, and the first field is applied to calculation of an allocation resource of the control channel and the second field is applied to calculation of power control information of the control channel.
14. The user equipment as claimed in claim 13 , wherein generating the response information corresponds to one of a scheme of generating response information by bundling a plurality of pieces of response information and a scheme of generating response information by multiplexing a plurality of pieces of response information.