Preemption indication' for new radio

Abstract

Preempting a slot with a mini-slot for use in a wireless transmitter of a wireless communication network is presented. The method includes preempting a slot transmission to a wireless receiver with a mini-slot transmission to the wireless receiver, wherein the slot transmission comprises a plurality of time-frequency regions (TFRs), each TFR comprising a plurality of sub-regions. The method further includes transmitting a preemption indication to the wireless receiver, where the preemption indication includes: a TFR position in time of one or more preempted TFRs in the slot transmission, a TFR position in frequency of the one or more preempted TFRs in the slot transmission and an identifier of one or more of the plurality of sub-regions of the one more preempted TFRs.

1 . A method of preempting a slot with a mini-slot for use in a wireless transmitter of a wireless communication network, the method comprising:
 preempting a slot transmission to a wireless receiver with a mini-slot transmission to the wireless receiver, wherein the slot transmission comprises a plurality of time-frequency regions (TFRs), each TFR comprising a plurality of sub-regions;   transmitting a preemption indication to the wireless receiver, the preemption indication comprising:   a TFR position in time of one or more preempted TFRs in the slot transmission;   a TFR position in frequency of the one or more preempted TFRs in the slot transmission; and   an identifier of one or more of the plurality of sub-regions of the one more preempted TFRs.   
     
     
         2 . The method of  claim 1 , wherein the TFR position in time of the one or more preempted TFRs in the slot transmission comprises an identifier of a TFR backward in time relative to the preemption indication. 
     
     
         3 . The method of  claim 2 , wherein the TFR position in time of the one or more preempted TFRs in the slot transmission comprises an index of a TFR backward in time relative to the preemption indication within a maximum backward time. 
     
     
         4 . The method of  claim 1 , wherein the TFR position in frequency of the one or more preempted TFRs in the slot transmission comprises a fraction of the total bandwidth. 
     
     
         5 . The method of  claim 1 , wherein the identifier of one or more of the plurality of sub-regions of the one more preempted TFRs comprises a bitmap with a bit position for each sub-region. 
     
     
         6 . A wireless device comprising processing circuitry operable to perform the method of  claim 1 . 
     
     
         7 . A network node comprising processing circuitry operable to perform the method of  claim 1 . 
     
     
         8 . A computer program comprising computer-readable instructions for causing at least one programmable processor to perform the method of  claim 1 . 
     
     
         9 . A method of identifying a preempted mini-slot within a slot for use in a wireless receiver of a wireless communication network, the method comprising:
 receiving, from a wireless transmitter, a slot transmission with a preempted mini-slot, wherein the slot transmission comprises a plurality of time-frequency regions (TFRs), each TFR comprising a plurality of sub-regions;   receiving a preemption indication from the wireless transmitter, the preemption indication comprising:   a TFR position in time of one or more preempted TFRs in the slot transmission;   a TFR position in frequency of the one or more preempted TFRs in the slot transmission; and   an identifier of one or more of the plurality of sub-regions of the one more preempted TFRs.   
     
     
         10 . The method of  claim 9 , wherein the TFR position in time of the one or more preempted TFRs in the slot transmission comprises an identifier of a TFR backward in time relative to the preemption indication. 
     
     
         11 . The method of  claim 10 , wherein the TFR position in time of the one or more preempted TFRs in the slot transmission comprises an index of a TFR backward in time relative to the preemption indication within a maximum backward time. 
     
     
         12 . The method of  claim 9 , wherein the TFR position in frequency of the one or more preempted TFRs in the slot transmission comprises a fraction of the total bandwidth. 
     
     
         13 . The method of  claim 9 , wherein the identifier of one or more of the plurality of sub-regions of the one more preempted TFRs comprises a bitmap with a bit position for each sub-region. 
     
     
         14 . A wireless device comprising processing circuitry operable to perform the method of  claim 9 . 
     
     
         15 . A network node comprising processing circuitry operable to perform the method of  claim 9 . 
     
     
         16 . A computer program comprising computer-readable instructions for causing at least one programmable processor to perform the method of  claim 9 .