Method and device for transmitting response information, and resource allocation for response information transmission according to transmission conditions in a wireless communication system

Abstract

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.

What is claimed is: 
     
         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 having resource indexes;   transmitting, to the user equipment, the control channel and the data channel including the data to be transmitted;   receiving, response information transmitted from the user equipment with respect to the transmitted data in resource having the resource indexes allocated based on the allocation scheme; and   determining whether to retransmit the transmitted data based on the received response information,   wherein the resource indexes of the response information allocated based on the allocation scheme are determined one of which based on an n_CCE value, which is an index of a Control Channel Element (CCE) of the control channel and based on a Transmit Power Control (TPC) value of the control channel.   
     
     
         2 . The method of  claim 1 , wherein the scheme of generating 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. 
     
     
         3 . The method of  claim 1 , wherein the control channel is a Physical Downlink Control Channel (PDCCH). 
     
     
         4 . The method of  claim 1 , wherein the data channel is a Physical Downlink Shared Channel (PDSCH). 
     
     
         5 . The 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 having resource indexes;   generating the response information resource based on the scheme of generating response information; and   transmitting, response information with respect to the received data in resource having the resource indexes allocated based on the allocation scheme,   wherein the resource indexes of the response information allocated based on the allocation scheme are determined one of which based on an n_CCE value, which is an index of a Control Channel Element (CCE) of the control channel and based on a Transmit Power Control (TPC) value of the control channel.   
     
     
         6 . The method of  claim 5 , wherein the scheme of generating 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. 
     
     
         7 . The method of  claim 5 , wherein the control channel is a Physical Downlink Control Channel (PDCCH). 
     
     
         8 . The method of  claim 5 , wherein the data channel is a Physical Downlink Shared Channel (PDSCH). 
     
     
         9 . 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, 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 having resource indexes;   a transceiving unit to transmit to the user equipment, the control channel and the data channel including the data to be transmitted, and to receive response information transmitted from the user equipment with respect to the transmitted data in resource having the resource indexes allocated based on the allocation scheme; and   a controller to determine whether to retransmit the transmitted data based on the received response information,   wherein the resource indexes of the response information allocated based on the allocation scheme are determined one of which based on an n_CCE value, which is an index of a Control Channel Element (CCE) of the control channel and based on a Transmit Power Control (TPC) value of the control channel.   
     
     
         10 . The base station of  claim 9 , wherein the scheme of generating 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 . The base station of  claim 9 , wherein the control channel is a Physical Downlink Control Channel (PDCCH). 
     
     
         12 . The base station of  claim 9 , wherein the data channel is a Physical Downlink Shared Channel (PDSCH). 
     
     
         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 determining unit to determine a transmission scheme or an amount of received data, to determine, based on the transmission 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 having resource indexes; and   a controller to generate the response information resource based on the scheme of generating response information,   wherein the transceiving unit transmits response information with respect to the received data in resource having the resource indexes allocated based on the allocation scheme, and   wherein the resource indexes of the response information allocated based on the allocation scheme are determined one of which based on an n_CCE value, which is an index of a Control Channel Element (CCE) of the control channel and based on a Transmit Power Control (TPC) value of the control channel.   
     
     
         14 . The user equipment of  claim 13 , wherein the scheme of generating 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. 
     
     
         15 . The user equipment of  claim 13 , wherein the control channel is a Physical Downlink Control Channel (PDCCH). 
     
     
         16 . The user equipment of  claim 13 , wherein the data channel is a Physical Downlink Shared Channel (PDSCH).