Wireless Communications for Uplink Cancelation

Patent metadata

Field	Value
Publication number	US-2025031208-A1
Application number	US-202418908327-A
Country	US
Kind code	A1
Filing date	Oct 7, 2024
Priority date	Mar 30, 2018
Publication date	Jan 23, 2025
Grant date	—

Abstract

Systems, apparatuses, and methods are described for wireless communications. Wireless devices may have different capabilities for uplink cancelation. A base station may communicate with a wireless device to determine a capability, of the wireless device, for uplink cancelation. The wireless device may receive downlink control information indicating, based on the determined capability for uplink cancelation, an uplink cancelation.

First claim

1 . A method comprising:
receiving, by a wireless device, a request for at least one capability parameter of the wireless device; sending, based on the request, a capability parameter indicating that cancelation of uplink transmission is supported; and after sending the capability parameter, receiving a radio resource control (RRC) message comprising one or more parameters associated with downlink control information (DCI) for uplink cancelation indication.

2 . The method of claim 1 , wherein:
the receiving the RRC message comprises receiving at least one RRC message comprising a configuration of uplink cancelation indication of a DCI format associated with uplink cancelation, the configuration of uplink cancelation indication indicates an association between each uplink cancelation indicator of the DCI and a cell of a plurality of cells, and one or more uplink cancelation indicators, of the DCI, comprises:
a first uplink cancelation indicator associated with a first cell of the plurality of cells; and
a second uplink cancelation indicator associated with a second cell of the plurality of cells.

3 . The method of claim 1 , wherein:
the receiving the request comprises receiving the request from a base station via a second RRC message; the sending the capability parameter comprises sending the capability parameter to the base station via a third RRC message; and the receiving the RRC message comprises receiving the RRC message from the base station.

4 . The method of claim 1 , further comprising:
sending, via an uplink shared channel, a first portion of uplink data; receiving the DCI, wherein the DCI comprises one or more uplink cancelation indicators that indicate at least one of:
stopping uplink transmission; or
canceling scheduled uplink transmission; and
based on the DCI, not sending a second portion of the uplink data, wherein the one or more uplink cancelation indicators further indicate at least one uplink resource is preempted for another wireless device.

5 . The method of claim 1 , wherein:
the receiving the RRC message comprises receiving at least one RRC message comprising:
a radio network temporary identifier (RNTI) associated with uplink cancelation; and
a configuration of uplink cancelation indication of a DCI format associated with uplink cancelation; and
the method further comprises:
receiving the DCI;
determining, based on the RNTI associated with uplink cancelation, that the DCI indicates uplink cancelation; and
skipping, based on the determining that the DCI indicates uplink cancelation, transmission of a first uplink message via at least one uplink resource.

6 . The method of claim 1 , further comprising:
sending, based on the request, a second capability parameter indicating that downlink preemption is not supported, and receiving, after sending the capability parameter and the second capability parameter, a control message comprising a first radio network temporary identifier (RNTI) for reception of an uplink cancelation indication, wherein the control message does not comprise a second RNTI for reception of a downlink preemption indication, and wherein the control message indicates at least one control channel parameter, for receiving the DCI, comprising at least one of:
a control resource set; or
a search space.

7 . A method comprising:
sending, by a base station, a request for at least one capability parameter of a wireless device; receiving, based on the request, a capability parameter indicating that cancelation of uplink transmission is supported; and after receiving the capability parameter, sending a radio resource control (RRC) message comprising one or more parameters associated with downlink control information (DCI) for uplink cancelation indication.

8 . The method of claim 7 , wherein:
the sending the RRC message comprises sending at least one RRC message comprising a configuration of uplink cancelation indication of a DCI format associated with uplink cancelation, the configuration of uplink cancelation indication indicates an association between each uplink cancelation indicator of the DCI and a cell of a plurality of cells, and one or more uplink cancelation indicators, of the DCI, comprises:
a first uplink cancelation indicator associated with a first cell of the plurality of cells; and
a second uplink cancelation indicator associated with a second cell of the plurality of cells.

9 . The method of claim 7 , wherein:
the sending the request comprises sending the request to the wireless device via a second RRC message; the receiving the capability parameter comprises receiving the capability parameter from the wireless device via a third RRC message; and the sending the RRC message comprises sending the RRC message to the wireless device.

10 . The method of claim 7 , further comprising:
receiving, via an uplink shared channel, a first portion of uplink data; sending the DCI, wherein the DCI comprises one or more uplink cancelation indicators that indicate at least one of:
stopping uplink transmission; or
canceling scheduled uplink transmission; and
based on the DCI, skipping reception of a second portion of the uplink data, wherein the one or more uplink cancelation indicators further indicate at least one uplink resource is preempted for another wireless device.

11 . The method of claim 7 , wherein:
the sending the RRC message comprises sending at least one RRC message comprising:
a radio network temporary identifier (RNTI) associated with uplink cancelation; and
a configuration of uplink cancelation indication of a DCI format associated with uplink cancelation; and
the method further comprises:
sending the DCI;
scrambling, based on the RNTI associated with uplink cancelation, the DCI; and
skipping reception of a first uplink message via at least one uplink resource.

12 . The method of claim 7 , further comprising:
receiving, based on the request, a second capability parameter indicating that downlink preemption is not supported, and sending, after receiving the capability parameter and the second capability parameter, a control message comprising a first radio network temporary identifier (RNTI) for reception of an uplink cancelation indication, wherein the control message does not comprise a second RNTI for reception of a downlink preemption indication, and wherein the control message indicates at least one control channel parameter, for receiving the DCI, comprising at least one of:
a control resource set; or
a search space.

13 . A wireless device comprising:
one or more processors; and memory storing instructions that, when executed by the one or more processors, cause the wireless device to:
receive a request for at least one capability parameter of the wireless device;
send, based on the request, a capability parameter indicating that cancelation of uplink transmission is supported; and
after sending the capability parameter, receive a radio resource control (RRC) message comprising one or more parameters associated with downlink control information (DCI) for uplink cancelation indication.

14 . The wireless device of claim 13 , wherein the instructions, when executed by the one or more processors, cause the wireless device to:
receive the RRC message by receiving at least one RRC message comprising a configuration of uplink cancelation indication of a DCI format associated with uplink cancelation, wherein the configuration of uplink cancelation indication indicates an association between each uplink cancelation indicator of the DCI and a cell of a plurality of cells, and

Assignees

• Comcast Cable Comm Llc

Inventors

• Zhou Hua
• Dinan Esmael Hejazi
• Cirik Ali Cagatay
• Babaei Alireza
• Jeon Hyoungsuk
• Park Kyungmin

Classifications

• H04W72/54

  based on quality criteria · CPC title

• H04W72/23 Primary

  in the downlink direction of a wireless link, i.e. towards a terminal · CPC title

• H04W72/044

  based on the type of the allocated resource · CPC title

• H04W72/20 Primary

  Control channels or signalling for resource management · CPC title