PREEMPTION INDICATION' FOR NEW RADIO
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 .