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EP-4742786-A1 - METHOD AND DEVICE FOR SELECTING RESOURCE IN CONSIDERATION OF COT IN UNLICENSED BAND

EP4742786A1EP 4742786 A1EP4742786 A1EP 4742786A1EP-4742786-A1

Abstract

A method for performing wireless communication by a first device and a device supporting same are provided. The method may include the steps of: selecting a first resource; receiving information related to a first channel occupancy time (COT) from a second device; triggering resource selection on the basis that the first resource selected before the reception of the information related to the first COT is out of a period related to the first COT; and selecting a second resource within the period related to the first COT on the basis of the resource selection.

Inventors

  • PARK, GIWON
  • LEE, SEUNGMIN
  • BACK, SEOYOUNG

Assignees

  • LG Electronics Inc.

Dates

Publication Date
20260513
Application Date
20240704

Claims (20)

  1. A method for performing wireless communication by a first device, the method comprising: selecting a first resource; receiving, from a second device, information related to a first channel occupancy time (COT); triggering a resource selection, based on the first resource selected before the reception of the information related to the first COT being outside a duration related to the first COT; and selecting a second resource within the duration related to the first COT, based on the resource selection.
  2. The method of claim 1, wherein the second resource selected within the duration related to the first COT is selected by excluding the first resource selected outside the duration related to the first COT before the reception of the information related to the first COT.
  3. The method of claim 1, wherein the information related to the first COT including information related to the duration of the first COT is received from the second device after the selection of the first resource.
  4. The method of claim 1, wherein the duration related to the first COT including the second resource is determined based on the information related to the first COT received from the second device after the selection of the first resource.
  5. The method of claim 1, wherein the second resource is selected within the duration related to the first COT, based on at least one of a re-evaluation, a pre-emption, a congestion control, or prioritization related to the first resource selected before the reception of the information related to the first COT.
  6. The method of claim 1, wherein the second resource is selected within the duration related to the first COT, based on the first resource selected before the reception of the information related to the first COT being unable to accommodate data to be transmitted to the second device.
  7. The method of claim 1, further comprising: receiving, from the second device, information related to a second COT, wherein the information related to the first COT is related to a first session established between the first device and the second device, and wherein the information related to the second COT is related to a second session established between the first device and the second device.
  8. The method of claim 7, wherein the second resource is selected within a duration in which the duration related to the first COT and a duration related to the second COT overlap.
  9. The method of claim 7, wherein the second resource is selected within at least one of the duration related to the first COT or a duration related to the second COT.
  10. The method of claim 7, wherein the second resource is selected within at least one of the duration related to the first COT or a duration related to the second COT, based on a number of idle resources within a duration in which the duration related to the first COT and a duration related to the second COT overlap being less than a threshold value.
  11. The method of claim 1, further comprising: transmitting, to the second device, data based on performing a listen before talk (LBT) within the duration related to the first COT, wherein the data is transmitted based on the second resource selected within the duration related to the first COT, excluding the first resource selected outside the duration related to the first COT.
  12. The method of claim 11, wherein the LBT is a LBT in which a time duration for sensing is deterministic.
  13. The method of claim 1, wherein the second resource selected within the duration related to the first COT is a resource for at least one of an initial transmission or a retransmission to the second device.
  14. A first device adapted to perform wireless communication, the first device comprising: at least one transceiver; at least one processor; and at least one memory connected to the at least one processor and storing instructions that, based on being executed, cause the first device to perform operations comprising: selecting a first resource; receiving, from a second device, information related to a first channel occupancy time (COT); triggering a resource selection, based on the first resource selected before the reception of the information related to the first COT being outside a duration related to the first COT; and selecting a second resource within the duration related to the first COT, based on the resource selection.
  15. A processing device adapted to control a first device to perform wireless communication, the processing device comprising: at least one processor; and at least one memory connected to the at least one processor and storing instructions that, based on being executed, cause the at least one processor to perform operations comprising: selecting a first resource; receiving, from a second device, information related to a first channel occupancy time (COT); triggering a resource selection, based on the first resource selected before the reception of the information related to the first COT being outside a duration related to the first COT; and selecting a second resource within the duration related to the first COT, based on the resource selection.
  16. A non-transitory computer-readable storage medium recording instructions, the instruction, when executed, cause a first device to perform operations comprising: selecting a first resource; receiving, from a second device, information related to a first channel occupancy time (COT); triggering a resource selection, based on the first resource selected before the reception of the information related to the first COT being outside a duration related to the first COT; and selecting a second resource within the duration related to the first COT, based on the resource selection.
  17. A method for performing wireless communication by a second device, the method comprising: generating a channel occupancy time (COT), based on a listen before talk (LBT); transmitting, to a first device, information related to the COT; and receiving, from the first device, data within a duration related to the COT, wherein a resource related to the reception of the data is selected within the duration related to the COT, based on a resource selected before the first device receives the information related to the COT being outside the duration related to the COT.
  18. A second device adapted to perform wireless communication, the second device comprising: at least one transceiver; at least one processor; and at least one memory connected to the at least one processor and storing instructions that, based on being executed, cause the second device to perform operations comprising: generating a channel occupancy time (COT), based on a listen before talk (LBT); transmitting, to a first device, information related to the COT; and receiving, from the first device, data within a duration related to the COT, wherein a resource related to the reception of the data is selected within the duration related to the COT, based on a resource selected before the first device receives the information related to the COT being outside the duration related to the COT.
  19. A processing device adapted to control a second device to perform wireless communication, the processing device comprising: at least one processor; and at least one memory connected to the at least one processor and storing instructions that, based on being executed, cause the at least one processor to perform operations comprising: generating a channel occupancy time (COT), based on a listen before talk (LBT); transmitting, to a first device, information related to the COT; and receiving, from the first device, data within a duration related to the COT, wherein a resource related to the reception of the data is selected within the duration related to the COT, based on a resource selected before the first device receives the information related to the COT being outside the duration related to the COT.
  20. A non-transitory computer-readable storage medium recording instructions, the instruction, when executed, cause a second device to perform operations comprising: generating a channel occupancy time (COT), based on a listen before talk (LBT); transmitting, to a first device, information related to the COT; and receiving, from the first device, data within a duration related to the COT, wherein a resource related to the reception of the data is selected within the duration related to the COT, based on a resource selected before the first device receives the information related to the COT being outside the duration related to the COT.

Description

TECHNICAL FIELD This disclosure relates to a wireless communication system. BACKGROUND ART 5G NR is a successive technology of long term evolution (LTE) corresponding to a new Clean-slate type mobile communication system having the characteristics of high performance, low latency, high availability, and so on. 5G NR may use resources of all spectrum available for usage including low frequency bands of less than 1GHz, middle frequency bands ranging from 1GHz to 10GHz, high frequency (millimeter waves) of 24GHz or more, and so on. The 6G (wireless communication) system is aimed at (i) very high data rates per device, (ii) a very large number of connected devices, (iii) global connectivity, (iv) very low latency, (v) lower energy consumption for battery-free IoT devices, (vi) ultra-reliable connectivity, and (vii) connected intelligence with machine learning capabilities. The vision of the 6G system can have four aspects: intelligent connectivity, deep connectivity, holographic connectivity, and ubiquitous connectivity, and the 6G system can satisfy the requirements as shown in Table 1 below. In other words, Table 1 is an example of the requirements of a 6G system. [Table 1]Per device peak data rate1 TbpsE2E latency1 msMaximum spectral efficiency100bps/HzMobility supportUp to 1000km/hrSatellite integrationFullyAIFullyAutonomous vehicleFullyXRFullyHaptic CommunicationFully DISCLOSURE TECHNICAL SOLUTION In one embodiment, provided is a method for performing wireless communication by a first device. The method may comprise: selecting a first resource; receiving, from a second device, information related to a first channel occupancy time (COT); triggering a resource selection, based on the first resource selected before the reception of the information related to the first COT being outside a duration related to the first COT; and selecting a second resource within the duration related to the first COT, based on the resource selection. In one embodiment, provided is a first device configured to perform wireless communication. The first device may comprise: at least one transceiver; at least one processor; and at least one memory connected to the at least one processor and storing instructions. For example, the instructions, based on being executed by the at least one processor, cause the first device to perform operations comprising: selecting a first resource; receiving, from a second device, information related to a first channel occupancy time (COT); triggering a resource selection, based on the first resource selected before the reception of the information related to the first COT being outside a duration related to the first COT; and selecting a second resource within the duration related to the first COT, based on the resource selection. In one embodiment, provided is a processing device configured to control a first device. The processing device may comprise: at least one processor; and at least one memory connected to the at least one processor and storing instructions. For example, the instructions, based on being executed by the at least one processor, cause the first device to perform operations comprising: selecting a first resource; receiving, from a second device, information related to a first channel occupancy time (COT); triggering a resource selection, based on the first resource selected before the reception of the information related to the first COT being outside a duration related to the first COT; and selecting a second resource within the duration related to the first COT, based on the resource selection. In one embodiment, provided is a non-transitory computer-readable storage medium recording instructions. For example, the instructions, based on being executed, cause a first device to perform operations comprising: selecting a first resource; receiving, from a second device, information related to a first channel occupancy time (COT); triggering a resource selection, based on the first resource selected before the reception of the information related to the first COT being outside a duration related to the first COT; and selecting a second resource within the duration related to the first COT, based on the resource selection. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows a communication structure that can be provided in the 6G system, based on an embodiment of the present disclosure.FIG. 2 shows an electromagnetic spectrum, based on an embodiment of the present disclosure.FIG. 3 shows an example of an NTN typical scenario based on a transparent payload, based on an embodiment of the present disclosure.FIG. 4 shows an example of an NTN typical scenario based on a regenerative payload, based on an embodiment of the present disclosure.FIG. 5 shows an example of a sensing operation, based on an embodiment of the present disclosure.FIG. 6 shows a structure of a slot of a frame, based on an embodiment of the present disclosure.FIG. 7 shows an example of a BWP, based on an embodiment of the pr