Enb pdcch implementation to avoid ambiguous dci information

Abstract

A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus determines a first decoding candidate in a first search space and a second decoding candidate in a second search space, where the first decoding candidate and the second decoding candidate have a same size but different definitions of information fields, identifies a difference in the information fields, and determines one of the first decoding candidate and the second decoding candidate as a valid candidate based on the identified difference. The apparatus further generates first control information for transmitting in a first search space, codes the first control information, wherein the code applied to the first control information is specific to the first search space and different from code applied to second control information in a second search space, and transmits the coded first control information in the first search space.

What is claimed is: 
     
         1 .- 22 . (canceled) 
     
     
         23 . A method of wireless communication, comprising:
 generating first control information for transmitting in a first search space; and   for a first subset of subframes:
 assigning a first priority to the first control information to be transmitted in the first search space, the first priority higher than a second priority assigned to second control information transmitted in a second search space, and 
 transmitting the first control information with the assigned first priority in the first search space. 
   
     
     
         24 . The method of  claim 23 , wherein the first subset of subframes comprises subframes where a user equipment (UE) receives reconfiguration information. 
     
     
         25 . The method of  claim 24 , wherein the first subset of subframes comprises:
 subframes 0, 4, 5, and 9 for a frequency division duplex (FDD) system; and   subframes 0, 1, 5, and 6 for a time division duplex (TDD) system.   
     
     
         26 . The method of  claim 23 , further comprising:
 for a second subset of subframes:
 assigning a third priority to the first control information to be transmitted in the first search space, the third priority lower than a fourth priority assigned to the second control information transmitted in the second search space, and 
 transmitting the first control information with the assigned third priority in the first search space. 
   
     
     
         27 . The method of  claim 26 , wherein the second subset of subframes comprises subframes where a user equipment (UE) does not receive reconfiguration information. 
     
     
         28 . The method of  claim 26 , wherein the first search space is a common search space (CSS) and the second search space is user equipment specific search space (UESS). 
     
     
         29 . An apparatus for wireless communication, comprising:
 means for generating first control information for transmitting in a first search space; and   for a first subset of subframes:
 means for assigning a first priority to the first control information to be transmitted in the first search space, the first priority higher than a second priority assigned to second control information transmitted in a second search space, and 
 means for transmitting the first control information with the assigned first priority in the first search space. 
   
     
     
         30 . The apparatus of  claim 29 , wherein the first subset of subframes comprises subframes where a user equipment (UE) receives reconfiguration information. 
     
     
         31 . The apparatus of  claim 30 , wherein the first subset of subframes comprises:
 subframes 0, 4, 5, and 9 for a frequency division duplex (FDD) system; and   subframes 0, 1, 5, and 6 for a time division duplex (TDD) system.   
     
     
         32 . The apparatus of  claim 29 , further comprising:
 for a second subset of subframes:
 means for assigning a third priority to the first control information to be transmitted in the first search space, the third priority lower than a fourth priority assigned to the second control information transmitted in the second search space, and 
 means for transmitting the first control information with the assigned third priority in the first search space. 
   
     
     
         33 . The apparatus of  claim 32 , wherein the second subset of subframes comprises subframes where a user equipment (UE) does not receive reconfiguration information. 
     
     
         34 . The apparatus of  claim 32 , wherein the first search space is a common search space (CSS) and the second search space is user equipment specific search space (UESS). 
     
     
         35 . An apparatus for wireless communication, comprising:
 a processing system configured to:   generate first control information for transmitting in a first search space; and   for a first subset of subframes:
 assign a first priority to the first control information to be transmitted in the first search space, the first priority higher than a second priority assigned to second control information transmitted in a second search space, and 
 transmit the first control information with the assigned first priority in the first search space. 
   
     
     
         36 . The apparatus of  claim 35 , wherein the first subset of subframes comprises subframes where a user equipment (UE) receives reconfiguration information. 
     
     
         37 . The apparatus of  claim 36 , wherein the first subset of subframes comprises:
 subframes 0, 4, 5, and 9 for a frequency division duplex (FDD) system; and   subframes 0, 1, 5, and 6 for a time division duplex (TDD) system.   
     
     
         38 . The apparatus of  claim 35 , the processing system further configured to:
 for a second subset of subframes:
 assign a third priority to the first control information to be transmitted in the first search space, the third priority lower than a fourth priority assigned to the second control information transmitted in the second search space, and 
 transmit the first control information with the assigned third priority in the first search space. 
   
     
     
         39 . The apparatus of  claim 38 , wherein the second subset of subframes comprises subframes where a user equipment (UE) does not receive reconfiguration information. 
     
     
         40 . The apparatus of  claim 38 , wherein the first search space is a common search space (CSS) and the second search space is user equipment specific search space (UESS). 
     
     
         41 . A computer program product, comprising:
 a computer-readable medium comprising code for:   generating first control information for transmitting in a first search space; and   for a first subset of subframes:
 assigning a first priority to the first control information to be transmitted in the first search space, the first priority higher than a second priority assigned to second control information transmitted in a second search space, and 
 transmitting the first control information with the assigned first priority in the first search space. 
   
     
     
         42 . The computer program product of  claim 41 , the computer-readable medium further comprising code for:
 for a second subset of subframes:
 assigning a third priority to the first control information to be transmitted in the first search space, the third priority lower than a fourth priority assigned to the second control information transmitted in the second search space, and 
 transmitting the first control information with the assigned third priority in the first search space.