Information indicating method, device and system

Patent metadata

Field	Value
Publication number	US-12295034-B2
Application number	US-202217700372-A
Country	US
Kind code	B2
Filing date	Mar 21, 2022
Priority date	Sep 25, 2019
Publication date	May 6, 2025
Grant date	May 6, 2025

Abstract

Embodiments of the present application discloses an information indicating method, a device and a system. The method includes: sending a physical uplink shared channel (PUSCH), wherein the PUSCH bears uplink control information (UCI), the UCI is used to indicate at least one of the following: remaining MCOT information which is used to indicate a remaining maximum channel occupancy time (MCOT) of a channel occupancy time (COT) within which a user equipment (UE) performs uplink transmission, or a target time period. The target time period includes: a time period for allowing a network device to transmit downlink data within COT within which uplink transmission is performed.

First claim

The invention claimed is:

1. An information indicating method, performed by a User Equipment (UE), wherein the method comprises:
sending a Physical Uplink Shared CHannel (PUSCH), wherein the PUSCH bears Uplink Control Information (UCI), the UCI is used to indicate a target time period,
wherein the target time period includes: a time period for allowing a network device to transmit downlink data within a Channel Occupancy Time (COT) within which uplink transmission is performed,
wherein when the UCI is used to indicate the start position of the target time period, the PUSCH is transmitted by the UE on a configured grant resource, and the UCI carried by each PUSCH transmitted on the configured grant resource is further used to indicate an offset time, and the offset time is the time from the end position or the start position of the PUSCH to the start position of the target time period.

2. The method according to claim 1 , wherein when the UCI is further used to indicate the remaining Maximum Channel Occupancy Time (MCOT) information which is used to indicate a remaining MCOT of the COT within which the UE performs uplink transmission, and the target time period, the remaining MCOT information comprises any one of the following:
the number of symbols which start from the end position or the start position of the PUSCH to the end position of the MCOT,
the number of time units which start from the end position or the start position of the PUSCH to the end position of the MCOT, and the symbol index offset from the end position or the start position of the PUSCH to the end position of the MCOT, or
the number of time units which start from the end position or the start position of the PUSCH to the end position of the MCOT, and the number of symbols included in a slot where the end position of the MCOT is located in.

3. The method according to claim 2 , wherein when the UCI is further used to indicate the remaining MCOT information, the remaining MCOT information comprises the start position of the COT and the length of the MCOT.

4. The method according to claim 3 , wherein the UCI comprises Listen-Before-Talk (LBT) priority class information, the LBT priority class information is used to indicate for the UE to acquire the priority class of LBT adopted by the COT, and the priority class of the LBT corresponds to the length of the MCOT.

5. The method according to claim 3 , wherein the start position of the COT is indicated through first indication information and second indication information, the first indication information is used to indicate whether the PUSCH is a first PUSCH of the COT, and the second indication information is used to indicate a time length from the end position or the start position of the PUSCH to the start position of the COT.

6. The method according to claim 5 , wherein the first indication information indicates whether the PUSCH is the first PUSCH of the COT by the modes by:
indicating through bit indication information, or
indicating through the toggle result of toggle bit information, or
indicating through order sequence of the PUSCH indicated by Uplink Assignment Index (UAI) bit information.

7. The method according to claim 5 , wherein the second indication information comprises any one of the following:
the number of symbols which start from the end position or the start position of the PUSCH to the start position of the COT,
the number of time units which start from the end position or the start position of the PUSCH to the start position of the COT, and the offset number of the symbol serial number of the end position or the start position of the PUSCH relative to the start position of the COT, or
the number of time units which start from the end position or the start position of the PUSCH to the start position of the COT, and the number of symbols included in a slot where the start position of the COT is located.

8. The method according to claim 1 , wherein the UCI is further used to indicate the number of time units included in the offset time.

9. The method according to claim 1 , wherein the LBT type of the network device in the target time period is indicated by the UCI or is predefined.

10. The method according to claim 1 , wherein the time length of the target time period is indicated by the UCI, or is predefined, or is configured by Radio Resource Control (RRC).

11. The method according to claim 10 , wherein when the time length of the target time period is indicated by the UCI, the UCI is used to indicate the end position of the target time period, or time units of the time length of the target time period and the number of the time units included in the time length.

12. The method according to claim 11 , wherein when the UCI is used to indicate the end position of the target time period, the UCI is used to indicate third indication information, and the third indication information comprises any one of the following:
the number of time units which start from the end position or the start position of the PUSCH to the end position of the target time period,
the number of time units which start from the end position or the start position of the PUSCH to the target time period, and the offset number of the symbol serial number of the end position or the start position of the PUSCH relative to the end position of the target time period, or
the number of time units which start from the end position or the start position of the PUSCH to the end position of the target time period, and the number of symbols included in a slot where the end position of the target time period is located.

13. The method according to claim 2 , wherein the time units are: slot, millisecond, or the time length of the PUSCH.

14. The method according to claim 1 , wherein the UCI is further used to indicate for the UE to support one-time uplink and downlink switch or multi-time uplink and downlink switch within the COT.

15. An information indicating method, performed by a network device, wherein the method comprises:
receiving a Physical Uplink Shared CHannel (PUSCH), wherein the PUSCH bears Uplink Control Information (UCI), the UCI is used to indicate a target time period,
wherein the target time period includes: a time period for allowing the network device to transmit downlink data within a Channel Occupancy Time (COT) within which uplink transmission is performed,
wherein when the UCI is used to indicate the start position of the target time period, the PUSCH is transmitted by a User Equipment (UE) on a configured grant resource, and the UCI carried by each PUSCH transmitted on the configured grant resource is further used to indicate an offset time, and the offset time is the time from the end position or the start position of the PUSCH to the start position of the target time period.

16. The method according to claim 15 , wherein when the UCI is further used to indicate remaining Maximum Channel Occupancy Time (MCOT) information which is used to indicate a remaining MCOT of the COT within which the UE performs uplink transmission and the target time period, the remaining MCOT information comprises any one of the following:
the number of symbols which start from the end position or the start position of the PUSCH to the end position of the MCOT,
the number of time units which start from the end position or the start position of the PUSCH to the end position of the MCOT, and the offset number of the symbol number of the end position or the start position of the PUSCH relative to the end position of the MCOT, or
the number of time units which start from the end position or the sta

Assignees

• Vivo Mobile Communication Co Ltd

Inventors

• Li Can
• Shen Xiaodong
• Tamrakar Rakesh

Classifications

• H04W74/0875

  with assigned priorities based access · CPC title

• H04W74/004

  in the uplink, i.e. towards network · CPC title

• H04W72/1268

  of uplink data flows · CPC title

• H04W74/0808 Primary

  using carrier sensing, e.g. carrier sense multiple access [CSMA] · CPC title

• H04W72/0446

  Resources in time domain, e.g. slots or frames · CPC title