Method and apparatus for determining size of preemption indication in a wireless communication system

Abstract

A method and apparatus are disclosed. In an example, a User Equipment (UE) is configured with a size associated with downlink control information (DCI) corresponding to one or more preemption indications. In some examples, the size is equal to a first value that is not a multiple of a defined value. Alternatively and/or additionally, the UE is configured with a starting position of a field associated with the DCI. The starting position is equal to a second value that is a multiple of the defined value. Alternatively and/or additionally, a first DCI comprising a first preemption indication is transmitted to the UE based upon the size and/or the starting position.

1 . A method comprising:
 transmitting, based upon (i) a size of downlink control information (DCI) that is equal to a first value that is not a multiple of a defined value and (ii) a starting position of a field in the DCI that is equal to a second value that is a multiple of the defined value, a first DCI comprising a first preemption indication to a User Equipment (UE).   
     
     
         2 . The method of  claim 1 , comprising:
 generating a configuration based upon the size; and   transmitting the configuration to the UE.   
     
     
         3 . The method of  claim 1 , wherein the size corresponds to a dci PayloadSize parameter in a DownlinkPreemption information element. 
     
     
         4 . The method of  claim 1 , wherein the configuring the UE with the starting position of the field in the DCI comprises:
 generating a configuration based upon the starting position; and   transmitting the configuration to the UE.   
     
     
         5 . The method of  claim 1 , wherein the starting position corresponds to a positionInDCI parameter in a DownlinkPreemption information element. 
     
     
         6 . The method of  claim 1 , wherein the first DCI is associated with DCI format 2_1. 
     
     
         7 . The method of  claim 1 , wherein at least one of the size is in a unit of bit or the starting position corresponds to a bit position. 
     
     
         8 . The method of  claim 1 , wherein the size being equal to the first value that is not be a multiple of the defined value and the starting position being equal to the second value that is a multiple of the defined value is associated with compliance with at least one of one or more configurations or one or more standards. 
     
     
         9 . A method comprising:
 receiving, based upon (i) a size of downlink control information (DCI) that is equal to a first value that is not a multiple of a defined value and (ii) a starting position of a field in the DCI that is equal to a second value that is a multiple of the defined value, a first DCI comprising a first preemption indication from a base station.   
     
     
         10 . The method of  claim 9 , comprising:
 responsive to receiving a configuration indicative of the size of the DCI, not performing one or more operations associated with reconfiguration failure.   
     
     
         11 . The method of  claim 9 , comprising:
 responsive to receiving a configuration indicative of the starting position of the field in the DCI, not performing one or more operations associated with reconfiguration failure.   
     
     
         12 . The method of  claim 9 , comprising:
 receiving, from the base station, a configuration indicative of the starting position of the field in the DCI, wherein the starting position is equal to a third value that is not a multiple of the defined value; and   not receiving, based upon the configuration, a second DCI comprising a second preemption indication from the base station.   
     
     
         13 . The method of  claim 12 , comprising:
 responsive to receiving the configuration, performing one or more operations associated with reconfiguration failure.   
     
     
         14 . The method of  claim 9 , wherein the first DCI is associated with DCI format 2_1. 
     
     
         15 . The method of  claim 9 , wherein the first value of the size is equal to an integer between 0 and a maximum size value. 
     
     
         16 . The method of  claim 9 , wherein the defined value is equal to 14. 
     
     
         17 . A communication device, comprising:
 a processor; and   memory comprising processor-executable instructions that when executed by the processor cause performance of operations, the operations comprising:
 receiving, based upon (i) a size of downlink control information (DCI) that is equal to a first value that is not a multiple of a defined value and (ii) a starting position of a field in the DCI that is equal to a second value that is a multiple of the defined value, a first DCI comprising a first preemption indication from a base station. 
   
     
     
         18 . The communication device of  claim 17 , further comprising:
 receiving, from the base station, a configuration indicative of the starting position of the field in the DCI, wherein the starting position is equal to a third value that is not a multiple of the defined value; and   not receiving, based upon the configuration, a second DCI comprising a second preemption indication from the base station.   
     
     
         19 . The communication device of  claim 18 , further comprising:
 responsive to receiving the configuration, performing one or more operations associated with reconfiguration failure.   
     
     
         20 . The communication device of  claim 17 , wherein the defined value is equal to 14.