Dci handling for enhanced cross-carrier scheduling

Abstract

There is presented a method implemented in a network node that is operating as a secondary cell and that is configured to communicate with a wireless device and a primary cell for the wireless device. The method includes scheduling a physical shared channel the primary cell for the wireless device using a physical downlink control channel, PDCCH, on the primary cell and a physical downlink control channel, PDCCH, on the secondary cell. There is also presented a network node, a method for a wireless device and a wireless device.

1 . A network node operating a secondary cell and configured to communicate with a wireless device (WD) and a primary cell for the wireless device, the network node comprising a radio interface and processing circuitry configured to:
 schedule a physical shared channel on the primary cell for the wireless device using a physical downlink control channel, PDCCH, on the primary cell and a physical downlink control channel, PDCCH, on the secondary cell, the size of DCI format used for the primary cell being size-matched to the size of the DCI format used for secondary for the secondary cell.   
     
     
         2 .- 4 . (canceled) 
     
     
         5 . The network node of  claim 1 , wherein both the DCI format used for the primary cell and the DCI format used for the secondary cell include a carrier indicator field. 
     
     
         6 . The network node of  claim 1 , wherein the secondary cell is a special secondary cell. 
     
     
         7 . A method implemented in a network node that is operating as a secondary cell and that is configured to communicate with a wireless device (WD) and a primary cell for the wireless device, the method comprising:
 scheduling a physical shared channel the primary cell for the wireless device using a physical downlink control channel, PDCCH, on the primary cell and a physical downlink control channel, PDCCH, on the secondary cell, the size of DCI format used for the primary cell being size-matched to the size of the DCI format used for secondary for the secondary cell.   
     
     
         8 .- 10 . (canceled) 
     
     
         11 . The method of  claim 7 , wherein both the DCI format used for the primary cell and the DCI format used for the secondary cell include a carrier indicator field. 
     
     
         12 . The method of  claim 7 , wherein the secondary cell is a special secondary cell. 
     
     
         13 . A wireless device configured to communicate with a primary cell and a secondary cell, the wireless device comprising a radio interface and processing circuitry configured to:
 receive scheduling from the primary cell using a physical downlink control channel, PDCCH, and scheduling from the secondary cell using a physical downlink control channel, PDCCH, the scheduling configured to schedule a physical shared channel on the primary cell for the wireless device, the size of DCI format used for the primary cell being size-matched to the size of the DCI format used for secondary for the secondary cell.   
     
     
         14 .- 16 . (canceled) 
     
     
         17 . The wireless device of  claim 13 , wherein both the DCI format used for the primary cell and the DCI format used for the secondary cell include a carrier indicator field. 
     
     
         18 . The wireless device of  claim 13 , wherein the secondary cell is a special secondary cell. 
     
     
         19 . A method implemented by a wireless device configured to communicate with a primary cell and a secondary cell, the method comprising:
 receiving scheduling from the primary cell using a physical downlink control channel, PDCCH, and scheduling from the secondary cell using a physical downlink control channel, PDCCH, the scheduling configured to schedule a physical shared channel on the primary cell for the wireless device, the size of DCI format used for the primary cell being size-matched to the size of the DCI format used for secondary for the secondary cell.   
     
     
         20 .- 22 . (canceled) 
     
     
         23 . The method of  claim 19 , wherein both the DCI format used for the primary cell and the DCI format used for the secondary cell include a carrier indicator field. 
     
     
         24 . The method of  claim 19 , wherein the secondary cell is a special secondary cell.