Channel Occupancy Time Interval in Unlicensed Frequency Spectrum

Patent metadata

Field	Value
Publication number	US-2022150917-A1
Application number	US-202017437904-A
Country	US
Kind code	A1
Filing date	Jan 29, 2020
Priority date	Mar 15, 2019
Publication date	May 12, 2022
Grant date	—

Abstract

According to some embodiments, a wireless device ( 14 - 1 ) is configured to transmit channel occupancy time, COT, information ( 20 ) to a radio network node ( 22 ). The COT information ( 20 ) indicates timing of, shareability of, and/or data prioritization for a COT interval ( 18 ) that the wireless device ( 14 - 1 ) initiates for occupying an unlicensed frequency channel ( 16 ). The wireless device ( 14 - 1 ) is also configured to receive different COT information ( 24 ) from the radio network node ( 22 ). The different COT information ( 24 ) indicates that the COT interval ( 18 ) initiated by the wireless device ( 14 - 1 ) is to have different timing, different shareability, and/or different data prioritization.

First claim

1 .- 41 . (canceled)

42 . A method performed by a wireless device, the method comprising:
transmitting, to a radio network node, channel occupancy time (COT) information indicating timing of, shareability of, and/or data prioritization for a COT interval that the wireless device initiates for occupying an unlicensed frequency channel; and receiving, from the radio network node, different COT information indicating that the COT interval initiated by the wireless device is to have different timing, different shareability, and/or different data prioritization.

43 . The method of claim 42 , further comprising occupying the unlicensed frequency channel during the COT interval as modified by the radio network node to have the different timing, different shareability, and/or different data prioritization.

44 . The method of claim 42 , wherein the COT information indicates that the COT interval is not shareable with the radio network node and/or with other wireless devices, and wherein the different COT information indicates that the COT interval is to be shareable with the radio network node and/or with other wireless devices.

45 . The method of claim 42 , wherein the COT information indicates a remaining duration of and/or a maximum duration of the COT interval, and wherein the different COT information indicates that the COT interval is to have a different remaining duration and/or a different maximum duration.

46 . A wireless device comprising:
communication circuitry; and processing circuitry configured to:
transmit, to a radio network node, channel occupancy time (COT) information indicating timing of, shareability of, and/or data prioritization for a COT interval that the wireless device initiates for occupying an unlicensed frequency channel; and
receive, from the radio network node, different COT information indicating that the COT interval initiated by the wireless device is to have different timing, different shareability, and/or different data prioritization.

47 . The wireless device of claim 46 , wherein the wireless device is further configured to occupy the unlicensed frequency channel during the COT interval as modified by the radio network node to have the different timing, different shareability, and/or different data prioritization.

48 . The wireless device of claim 46 , wherein the COT information indicates that the COT interval is not shareable with the radio network node and/or with other wireless devices, and wherein the different COT information indicates that the COT interval is to be shareable with the radio network node and/or with other wireless devices.

49 . The wireless device of claim 46 , wherein the COT information indicates a remaining duration of and/or a maximum duration of the COT interval, and wherein the different COT information indicates that the COT interval is to have a different remaining duration and/or a different maximum duration.

50 . The wireless device of claim 46 , wherein the COT information indicates a Listen Before Talk (LBT) priority class of data associated with the COT interval, and wherein the different COT information indicates that the COT interval is to be associated with data that has a different LBT priority class.

51 . A radio network node comprising:
communication circuitry; and processing circuitry configured to:
receive, from a wireless device, channel occupancy time (COT) information indicating timing of, shareability of, and/or data prioritization for a COT interval that the wireless device initiates for occupying an unlicensed frequency channel; and
transmit, to the wireless device, different COT information indicating that the COT interval initiated by the wireless device is to have different timing, different shareability, and/or different data prioritization.

52 . The radio network node of claim 51 , wherein the processing circuitry is further configured to make a determination of at least one of:
whether the COT interval initiated by the wireless device is to have different timing, different shareability, and/or different data prioritization; or the different timing, different shareability, and/or different data prioritization.

53 . The radio network node of claim 52 , wherein the processing circuitry is configured to make the determination based on a priority of pending data and/or a priority of data already scheduled to be transmitted to or received from the wireless device within the COT interval, wherein the pending data is data not yet scheduled for transmission or reception.

54 . The radio network node of claim 52 , wherein the processing circuitry is configured to make the determination based on a volume of pending data relative to a threshold volume, wherein the pending data is data not yet scheduled for transmission or reception.

55 . The radio network node of claim 51 , further configured to:
occupy the unlicensed frequency channel during the COT interval as modified by the radio network node to have the different timing, different shareability, and/or different data prioritization; or schedule data to be transmitted to or received from one or more other wireless devices on the unlicensed frequency channel during the COT interval as modified by the radio network node to have the different timing, different shareability, and/or different data prioritization.

56 . The radio network node of claim 51 , wherein the COT information indicates that the COT interval is not shareable with the radio network node and/or with other wireless devices, and wherein the different COT information indicates that the COT interval is to be shareable with the radio network node and/or with other wireless devices.

57 . The radio network node of claim 51 , wherein the COT information indicates a remaining duration of and/or a maximum duration of the COT interval, and wherein the different COT information indicates that the COT interval is to have a different remaining duration and/or a different maximum duration.

58 . The radio network node of claim 51 , wherein the COT information indicates a Listen Before Talk (LBT) priority class of data associated with the COT interval, and wherein the different COT information indicates that the COT interval is to be associated with data that has a different LBT priority class.

59 . A radio network node comprising:
communication circuitry; and processing circuitry configured to:
initiate, or receive information indicating that a first wireless device has initiated, a first channel occupancy time (COT) interval during which a first transmission is to be performed between the radio network node and the first wireless device on a first set of one or more radio resources within an unlicensed frequency channel; and
control initiation of a second COT interval during which a second transmission is to be performed between the radio network node and a second wireless device on a second set of one or more radio resources within the unlicensed frequency channel, wherein the second COT interval at least partly overlaps in time with the first COT interval.

60 . The radio network node of claim 59 , wherein the second transmission is allowed during the second COT interval based on a channel sensing procedure performed by the radio network node or the first wireless device for the first COT interval.

61 . The radio network node of claim 59 , wherein the second transmission has a priority level that is above a threshold and/or has a priority level that is above a priority level of the

Assignees

• Ericsson Telefon Ab L M

Inventors

• Wang Min

Classifications

• H04W72/21

  in the uplink direction of a wireless link, i.e. towards the network · CPC title

• H04W72/569 Primary

  of the traffic information · CPC title

• H04W16/14

  Spectrum sharing arrangements {between different networks} · CPC title

• H04W72/1284

  Electricity · mapped topic

• H04W72/1242 Primary

  Electricity · mapped topic