Determination of application delay value of minimum scheduling offset limit
地域：
Seoul
摘要
Provided are a method and device for determining an application delay value of a minimum scheduling offset limit in a wireless communication system. In the method, when DCI including information notifying a change in a minimum scheduling offset limit value in slot n of a scheduling cell is received, the changed minimum scheduling offset limit value is applied in slot n+X of the scheduling cell. Here, the X value may be determined on the basis of two parameters such as Y and Z, wherein the Y value is a minimum scheduling offset limit value applied to a scheduled cell scheduled by the DCI, and the Z value is a value determined in advance according to a subcarrier interval of the scheduling cell. In addition, the Z value may be increased by 1 according to the temporal position at which the DCI is received in the slot n.
說(shuō)明書
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Pursuant to 35 U.S.C. § 119(e), this application is a continuation of International Application No. PCT/KR2020/015141, with an international filing date of Nov. 2, 2020, which claims the benefit of Korean Patent Application No. 10-2019-0142075, filed on Nov. 7, 2019, the contents of which are hereby incorporated by reference herein in their entirety.
The present disclosure relates to a method for determining an application delay value of a minimum scheduling offset restriction in a wireless communication system and an apparatus using the method.
As a growing number of communication devices require higher communication capacity, there is a need for advanced mobile broadband communication as compared to existing radio access technology (RAT). Massive machine-type communication (MTC), which provides a variety of services anytime and anywhere by connecting a plurality of devices and a plurality of objects, is also one major issue to be considered in next-generation communication. In addition, designs for communication systems considering services or a user equipment (UE) sensitive to reliability and latency are under discussion. Introduction of next-generation RAT considering enhanced mobile broadband communication, massive MTC, and ultra-reliable and low-latency communication (URLLC) is under discussion. In this disclosure, for convenience of description, this technology may be referred to as new RAT or new radio (NR). NR is also referred to as a fifth generation (5G) system.
權(quán)利要求
What is claimed is:1. A method for determining an application delay value of a minimum scheduling offset restriction in a wireless communication system, the method comprising:receiving downlink control information (DCI) including information for a change to a value of K0 min or K2 min in a slot n of a scheduling cell, wherein each of the K0 min and K2 min is an applied minimum scheduling offset restriction, and applying a changed K0 min or a changed K2 min value in a slot n+X of the scheduling cell, wherein the X value is a largest value among i) a first value obtained by multiplying currently applied K0 min (Y) in a scheduled cell scheduled by the DCI by 2μscheduling/2μscheduled and then performing ceiling and ii) a second value (Z) that are predetermined depending on a subcarrier spacing (SCS) of the scheduling cell, and wherein the μscheduling is a subcarrier spacing configuration of the scheduling cell and the μscheduled is a subcarrier spacing configuration of the scheduled cell. 2. The method of claim 1 , wherein the DCI is received in symbols before a specific symbol index of the slot n. 3. The method of claim 1 , wherein based on the DCI being received in symbols after a specific symbol index of the slot n, the second value (Z) is incremented by 1 and then the X value is determined. 4. The method of claim 1 , wherein the X value is determined based on a following equation, wherein the Y is a K0 min value currently applied to the scheduled cell, and the Z is the second value. 5. The method of claim 1 , wherein based on a subcarrier spacing (SCS) of the scheduling cell being 15 kHz, 30 kHz, 60 kHz, 120 kHz, the second value (Z) is 1, 1, 2, 2, respectively. 6. The method of claim 1 , wherein the slot n includes a total of 14 symbols in a time domain. 7. The method of claim 1 , wherein the K0 min is a minimum scheduling offset restriction related to a minimum value of an offset between a slot for receiving a first DCI and a slot for receiving a physical downlink shared channel (PDSCH) scheduled by the first DCI, andwherein the K2 min is a minimum scheduling offset restriction related to a minimum value of an offset between a slot for receiving a second DCI and a slot for transmitting a physical uplink shared channel (PUSCH) scheduled by the second DCI. 8. A user equipment (UE) comprising:a transceiver for transmitting and receiving a radio signal; and a processor operating in connected to the transceiver, wherein the processor is configured to: receive downlink control information (DCI) including information for a change to a value of K0 min or K2 min in a slot n of a scheduling cell, wherein each of the K0 min and K2 min is an applied minimum scheduling offset restriction, and apply a changed K0 min or a changed K2 min value in a slot n+X of the scheduling cell, wherein the X value is a largest value among i) a first value obtained by multiplying currently applied K0 min (Y) in a scheduled cell scheduled by the DCI by 2μscheduling/2μscheduled and then performing ceiling and ii) a second value (Z) that are predetermined depending on a subcarrier spacing (SCS) of the scheduling cell, and wherein the μscheduling is a subcarrier spacing configuration of the scheduling cell and the μscheduled is a subcarrier spacing configuration of the scheduled cell. 9. The UE of claim 8 , wherein the DCI is received in symbols before a specific symbol index of the slot n. 10. The UE of claim 8 , wherein based on the DCI being received in symbols after a specific symbol index of the slot n, the second value (Z) is incremented by 1 and then the X value is determined. 11. The UE of claim 8 , wherein the X value is determined based on a following equation, wherein the Y is a K0 min value currently applied to the scheduled cell, and the Z is the second value. 12. The UE of claim 8 , wherein based on a subcarrier spacing (SCS) of the scheduling cell being 15 kHz, 30 kHz, 60 kHz, 120 kHz, the second value (Z) is 1, 1, 2, 2, respectively. 13. The UE of claim 8 , wherein the slot n includes a total of 14 symbols in a time domain. 14. The UE of claim 8 , wherein the K0 min is a minimum scheduling offset restriction related to a minimum value of an offset between a slot for receiving a first DCI and a slot for receiving a physical downlink shared channel (PDSCH) scheduled by the first DCI, andwherein the K2 min is a minimum scheduling offset restriction related to a minimum value of an offset between a slot for receiving a second DCI and a slot for transmitting a physical uplink shared channel (PUSCH) scheduled by the second DCI. 15. A communication method of a base station to which an application delay value of a minimum scheduling offset restriction is applied in a wireless communication system, the method comprising:transmitting, to a user equipment, downlink control information (DCI) including information for a change to a value of K0 min or K2 min in a slot n of a scheduling cell, wherein each of the K0 min and K2 min is an applied minimum scheduling offset restriction, and communicating with the user equipment by applying a changed K0 min or a changed K2 min value in a slot n+X of the scheduling cell, wherein the X value is a largest value among i) a first value obtained by multiplying currently applied K0 min (Y) in a scheduled cell scheduled by the DCI by 2μscheduling/2μscheduled and then performing ceiling and ii) a second value (Z) that are predetermined depending on a subcarrier spacing (SCS) of the scheduling cell, and wherein the μscheduling is a subcarrier spacing configuration of the scheduling cell and the μscheduled is a subcarrier spacing configuration of the scheduled cell.
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