Method and apparatus for allocating resources in wireless communication system

Abstract

A multiple distributed system is disclosed. An uplink control resource allocation method for a user equipment to transmit an Acknowledgement/Negative ACK (ACK/NACK) signal includes receiving one or more Enhanced-Physical Downlink Control Channels (E-PDCCHs), receiving one or more Physical Downlink Shared Channels (PDSCHs) corresponding to the one or more E-PDCCHs, and transmitting ACK/NACK signals for reception of the one or more PDSCHs through a Physical Uplink Control Channel (PUCCH), wherein Control Channel Element (CCE) indexes of the PUCCH transmitting the ACK/NACK signals are determined in consideration of first CCE indexes of the one or more E-PDCCHs and the number of CCEs of a PUCCH determined by a higher layer.

What is claimed is: 
     
         1 . A method for transmitting an uplink control channel to a base station by a user equipment in a wireless communication system, the method comprising:
 determining a specific uplink resource based on at least one parameter for a downlink control channel; and   transmitting the uplink control channel using the specific uplink resource to the base station,   wherein the at least one parameter for the downlink control channel includes a value derived from an antenna port index of a demodulation reference signal associated with the downlink control channel.   
     
     
         2 . The method of  claim 1 , wherein the at least one parameter comprises one of downlink resource indexes associated with the downlink control channel. 
     
     
         3 . The method of  claim 1 , wherein the downlink control channel is demodulated using the demodulation reference signal. 
     
     
         4 . The method of  claim 1 , wherein the uplink control channel carries the ACK/NACK information for a downlink shared channel scheduled by the downlink control channel. 
     
     
         5 . A user equipment in a wireless communication system, the user equipment comprising:
 a processor configured to determine a specific uplink resource based on at least one parameter for a downlink control channel; and   a radio frequency (RF) module configured to transmit the uplink control channel using the specific uplink resource to a base station,   wherein the at least one parameter for the downlink control channel includes a value derived from an antenna port index of a demodulation reference signal associated with the downlink control channel.   
     
     
         6 . The user equipment of  claim 5 , wherein the at least one parameter comprises one of downlink resource indexes associated with the downlink control channel. 
     
     
         7 . The user equipment of  claim 5 , wherein the downlink control channel is demodulated using the demodulation reference signal. 
     
     
         8 . The user equipment of  claim 5 , wherein the uplink control channel carries the ACK/NACK information for a downlink shared channel scheduled by the downlink control channel. 
     
     
         9 . A method for receiving an uplink control channel from a user equipment at a base station in a wireless communication system, the method comprising:
 receiving the uplink control channel using a specific uplink resource,   wherein the specific uplink resource is determined based on at least one parameter for a downlink control channel,   wherein the at least one parameter for the downlink control channel includes a value derived from an antenna port index of a demodulation reference signal associated with the downlink control channel.   
     
     
         10 . The method of  claim 9 , wherein the at least one parameter comprises one of downlink resource indexes associated with the downlink control channel. 
     
     
         11 . The method of  claim 9 , wherein the downlink control channel is modulated using the demodulation reference signal. 
     
     
         12 . The method of  claim 9 , wherein the uplink control channel carries the ACK/NACK information for a downlink shared channel scheduled by the downlink control channel. 
     
     
         13 . A base station in a wireless communication system, the base station comprising:
 a processor configured to determine a specific uplink resource based on at least one parameter for a downlink control channel.   a radio frequency (RF) module configured to receive an uplink control channel using the specific uplink resource; and   wherein the at least one parameter for the downlink control channel includes a value derived from an antenna port index of a demodulation reference signal associated with the downlink control channel.   
     
     
         14 . The base station of  claim 13 , wherein the at least one parameter comprises one of downlink resource indexes associated with the downlink control channel. 
     
     
         15 . The base station of  claim 13 , wherein the downlink control channel is modulated using the demodulation reference signal. 
     
     
         16 . The base station of  claim 13 , wherein the uplink control channel carries the ACK/NACK information for a downlink shared channel scheduled by the downlink control channel.