Conditional feedback for harq operation with enabling/disabling per harq process

Abstract

A method by a wireless device configured for providing Hybrid Automatic Repeat Request (HARQ) feedback with a HARQ codebook includes receiving a scheduling command that schedules a Physical Downlink Shared Channel (PDSCH) corresponding to a HARQ process associated with a HARQ process identifier that is enabled. Based on the scheduling command, the wireless device disables HARQ feedback for the PDSCH corresponding to the HARQ process associated with a HARQ process identifier that is enabled.

1 . A method by a wireless device configured for providing Hybrid Automatic Repeat Request, HARQ, feedback with a HARQ codebook, the method comprising:
 receiving a scheduling command that schedules a Physical Downlink Shared Channel, PDSCH, corresponding to a HARQ process associated with a HARQ process identifier that is enabled; and   based on the scheduling command, disabling HARQ feedback for the PDSCH corresponding to the HARQ process associated with a HARQ process identifier that is enabled.   
     
     
         2 . The method of  claim 1 , wherein the HARQ codebook comprises a Type-1 codebook. 
     
     
         3 . The method of  claim 1 , wherein the scheduling command is received in a Downlink Control Information message from a network node. 
     
     
         4 . The method of  claim 1 , further comprising determining that the scheduling command comprises an indication of an inapplicable value for a PDSCH-to-HARQ timing indicator for the PDSCH, and wherein the HARQ feedback for the PDSCH is disabled based on the indication of the inapplicable value for the PDSCH-to-HARQ timing indicator. 
     
     
         5 . The method of  claim 4 , wherein the inapplicable value comprises a non-numerical K1 value. 
     
     
         6 . The method of  claim 1 , wherein disabling the HARQ feedback for the PDSCH comprises discarding the HARQ feedback for the PDSCH. 
     
     
         7 . The method of  claim 1 , wherein disabling the HARQ feedback for the PDSCH comprises determining not to transmit the HARQ feedback to a network node. 
     
     
         8 . The method of  claim 1 , wherein disabling the HARQ feedback for the PDSCH comprises determining not to generate the HARQ feedback for the PDSCH. 
     
     
         9 . The method of  claim 1 , further comprising determining whether the HARQ process associated with the HARQ process identifier is enabled for HARQ feedback. 
     
     
         10 . The method of  claim 9 , wherein determining whether the HARQ process associated with the HARQ process identifier is enabled for HARQ feedback comprises:
 receiving, from a network node, a message comprising the HARQ process identifier, the message indicating whether the HARQ feedback is enabled for the HARQ process associated with HARQ process identifier.   
     
     
         11 . The method of  claim 1 , wherein a HARQ codebook is not generated and transmitted if all HARQ processes associated with the HARQ codebook are determined to be disabled. 
     
     
         12 - 14 . (canceled) 
     
     
         15 . A method by a wireless device configured for providing Hybrid Automatic Repeat Request, HARQ, feedback with a Type 2 HARQ codebook, the method comprising:
 receiving a scheduling command that schedules a Physical Downlink Shared Channel, PDSCH, corresponding to a HARQ process associated with a HARQ process identifier that is disabled, the scheduling command comprising an indication of an inapplicable value for the PDSCH-to-HARQ feedback timing indicator field;   based on the scheduling command, disabling HARQ feedback for the PDSCH corresponding to the HARQ process associated with a HARQ process identifier that is disabled; and   determining to ignore a Downlink Assignment Indicator, DAI, value in the scheduling command.   
     
     
         16 . The method of  claim 15 , wherein disabling the HARQ feedback for the PDSCH comprises discarding the HARQ feedback for the PDSCH. 
     
     
         17 . The method of  claim 15 , wherein disabling the HARQ feedback for the PDSCH comprises determining not to transmit the HARQ feedback to a network node. 
     
     
         18 . The method of  claim 15 , wherein disabling the HARQ feedback for the PDSCH comprises determining not to generate the HARQ feedback for the PDSCH. 
     
     
         19 . The method of  claim 15 , further comprising determining whether the HARQ process associated with the HARQ process identifier is disabled for HARQ feedback. 
     
     
         20 . The method of  claim 19 , wherein determining whether the HARQ process associated with the HARQ process identifier is disabled for HARQ feedback comprises:
 receiving, from a network node, a message comprising the HARQ process identifier, the message indicating whether the HARQ feedback is disabled for the HARQ process associated with HARQ process identifier.   
     
     
         21 . The method of  claim 15 , wherein a HARQ codebook is not generated and transmitted if all HARQ processes associated with the HARQ codebook are determined to be disabled. 
     
     
         22 - 24 . (canceled) 
     
     
         25 . A method by a network node for receiving Hybrid Automatic Repeat Request, HARQ, feedback with a HARQ codebook, the method comprising:
 transmitting, to a wireless device, a scheduling command that schedules a Physical Downlink Shared Channel, PDSCH, corresponding to a HARQ process associated with a HARQ process identifier that is enabled, wherein the scheduling command indicates to the wireless device to disable HARQ feedback for the PDSCH, corresponding to the HARQ process.   
     
     
         26 - 36 . (canceled) 
     
     
         37 . A wireless device configured for providing Hybrid Automatic Repeat Request, HARQ, feedback with a HARQ codebook, the wireless device adapted to:
 receive a scheduling command that schedules a Physical Downlink Shared Channel, PDSCH, corresponding to a HARQ process associated with a HARQ process identifier that is enabled; and   based on the scheduling command, disable HARQ feedback for the PDSCH corresponding to the HARQ process associated with a HARQ process identifier that is enabled.   
     
     
         38 - 63 . (canceled)