Resource Scheduling for Uplink Reporting

Abstract

Embodiments include methods for a network node to provide resources for uplink reporting by a wireless device. Such methods include, during setup of a connection with the wireless device, assigning the wireless device a particular one of a plurality of N-tuples of resources IDs contained in a data structure. Each N-tuple includes a different combination of resource IDs than other N-tuples of the plurality. Such methods include selecting a particular resource ID in the particular N-tuple for uplink reporting by the wireless device, and transmitting the particular resource ID to the wireless device together with a schedule for downlink data transmission to the wireless device. Other embodiments include network nodes configured to perform such methods.

1 . A method for providing resources for uplink reporting by a wireless device, the method performed by a network node and comprising:
 during setup of a connection with the wireless device, assigning the wireless device a particular one of a plurality of N-tuples of resources IDs contained in a data structure, each N-tuple including a different combination of resource IDs than other N-tuples of the plurality;   selecting a particular resource ID in the particular N-tuple for uplink reporting by the wireless device; and   transmitting the particular resource ID to the wireless device together with a schedule for downlink data transmission to the wireless device.   
     
     
         2 . The method of  claim 1 , wherein:
 the plurality of N-tuples of resource IDs are identified by a respective plurality of indices; and   assigning the N-particular tuple of resource IDs comprises transmitting to the wireless device a particular one of the indices that identifies the particular N-Tuple.   
     
     
         3 . The method of  claim 1 , wherein the particular resource ID is not currently used for uplink reporting by one or more other wireless devices served by the network node. 
     
     
         4 . The method of  claim 3 , wherein:
 the schedule identifies a downlink slot; and   the one or more other wireless devices include all other wireless devices scheduled in the identified downlink slot or in a downlink slot adjacent to the identified downlink slot.   
     
     
         5 . The method of  claim 1 , wherein:
 selecting the particular resource ID comprises, when all resource ID of the particular N-tuple already have been selected for other wireless devices, reassigning the particular resource ID from another wireless device to the wireless device, and assigning a further resource ID in a further one of the N-tuples to the other wireless device; and   the further resource ID is not currently used for uplink reporting by one or more other wireless devices served by the network node.   
     
     
         6 . The method of  claim 5 , wherein the schedule identifies a downlink slot; and
 the one or more other wireless devices include all other wireless devices scheduled in the identified downlink slot   
     
     
         7 . The method of  claim 1 , wherein the data structure includes all unique combinations of available resource IDs. 
     
     
         8 . The method of  claim 1 , wherein assigning the wireless device the particular N-tuple comprises randomly selecting the particular N-tuple from N-tuples, of the plurality, that are not currently assigned to other wireless devices served by the network node. 
     
     
         9 . The method of  claim 1 , wherein assigning the wireless device the particular N-tuple comprises performing one of the following when all N-tuples of the data structure are currently assigned to other wireless devices served by the network node:
 selecting, as the particular N-tuple, the N-tuple currently assigned to fewest of the other wireless devices; or adding at least the particular N-tuple to the data structure.   
     
     
         10 . The method of  claim 1 , wherein one or more of the following applies:
 the uplink reporting is on a physical uplink control channel (PUCCH);   each N-tuple of resource IDs defines a PUCCH resource set; and   each N-tuple of resource IDs includes at least N=4 resource IDs.   
     
     
         11 . The method of  claim 1 , wherein the particular resource ID is selected for uplink reporting associated with one of the following:
 acknowledgement (ACK) and negative acknowledgement (NACK)
 feedback related to the downlink data transmissions; or channel state information (CSI). 
   
     
     
         12 . A network node configured to provide resources for uplink reporting by a wireless device, the network node comprising:
 communication interface circuitry; and   processing circuitry operably coupled to the communication interface circuitry, whereby the processing circuitry and the communication interface circuitry are configured to:
 during setup of a connection with the wireless device, assign the wireless device a particular one of a plurality of N-tuples of resources IDs contained in a data structure, each N-tuple including a different combination of resource IDs than other N-tuples of the plurality; 
 select a particular resource ID in the particular N-tuple for uplink reporting by the wireless device; and 
 transmit the particular resource ID to the wireless device together with a schedule for downlink data transmission to the wireless device. 
   
     
     
         13 . The network node of  claim 12 , wherein:
 the plurality of N-tuples of resource IDs are identified by a respective plurality of indices; and   the processing circuitry and the communication interface circuitry are configured to assign the N-particular tuple of resource IDs based on transmitting to the wireless device a particular one of the indices that identifies the particular N-Tuple.   
     
     
         14 . The network node of  claim 12 , wherein the particular resource ID is not currently used for uplink reporting by one or more other wireless devices served by the network node. 
     
     
         15 . The network node of  claim 14 , wherein:
 the schedule identifies a downlink slot; and   the one or more other wireless devices include all other wireless devices scheduled in the identified downlink slot or in a downlink slot adjacent to the identified downlink slot.   
     
     
         16 . The network node of  claim 12 , wherein:
 the processing circuitry and the communication interface circuitry are configured to select the particular resource ID based on, when all resource ID of the particular N-tuple already have been selected for other wireless devices, reassigning the particular resource ID from another wireless device to the wireless device, and assigning a further resource ID in a further one of the N-tuples to the other wireless device; and   the further resource ID is not currently used for uplink reporting by one or more other wireless devices served by the network node.   
     
     
         17 . The network node of  claim 16 , wherein
 the schedule identifies a downlink slot; and   the one or more other wireless devices include all other wireless devices scheduled in the identified downlink slot   
     
     
         18 . The network node of  claim 12 , wherein the data structure includes all unique combinations of available resource IDs. 
     
     
         19 . The network node of  claim 12 , wherein the processing circuitry and the communication interface circuitry are configured to assign the wireless device the particular N-tuple based on randomly selecting the particular N-tuple from N-tuples, of the plurality, that are not currently assigned to other wireless devices served by the network node. 
     
     
         20 . The network node of  claim 12 , wherein the processing circuitry and the communication interface circuitry are configured to assign the wireless device the particular N-tuple based on performing one of the following when all N-tuples of the data structure are currently assigned to other wireless devices served by the network node:
 selecting, as the particular N-tuple, the N-tuple currently assigned to fewest of the other wireless devices; or   adding at least the particular N-tuple to the data structure.