User equipments, base stations and methods for multiple active configured grants

Patent metadata

Field	Value
Publication number	US-12150145-B2
Application number	US-202017764769-A
Country	US
Kind code	B2
Filing date	Sep 30, 2020
Priority date	Oct 3, 2019
Publication date	Nov 19, 2024
Grant date	Nov 19, 2024

Abstract

A user equipment (UE) is described. The UE includes receiving circuitry configured to receive first downlink control information (DCI) used for indicating a deactivation of a configured grant corresponding to a configured grant configuration with a first index. The UE also includes transmitting circuitry configured to transmit, based on a reception of the first DCI, a configured grant confirmation medium access control (MAC) control element (CE). The configured grant confirmation MAC CE includes a value indicating a deactivation status of the configured grant configuration with the first index.

First claim

The invention claimed is:

1. A user equipment (UE) that communicates with a base station, the UE comprising:
receiving circuitry configured to:
receive a radio resource control (RRC) message used for configuring more than one configured grant (CG) physical uplink shared channel (PUSCH) configuration,
receive an RRC configuration comprising information used for configuring a list for CG PUSCH configuration release,
detect a physical downlink control channel (PDCCH) for a first downlink control information (DCI) format with cyclic redundancy check (CRC) scrambled by a first radio network identifier (RNTI), the first DCI format being used for an activation of a CG PUSCH configuration, and
detect a PDCCH for a second DCI format with CRC scrambled by the first RNTI, the second DCI format being used for a deactivation of CG PUSCH configuration(s);

transmitting circuitry configured to perform, based on a detection of the first DCI format comprising information used for indicating the activation of the CG PUSCH configuration, an uplink data transmission on a PUSCH corresponding to the activated CG PUSCH configuration; and
processing circuitry configured to release the CG PUSCH configuration(s), based on a detection of the second DCI format comprising information indicating a) the release of the CG PUSCH configuration(s) and b) indices of the released CG PUSCH configuration(s), and, according to the second DCI format and the information used for configuring the list.

2. The UE of claim 1 , wherein
the first DCI format is one of DCI format 0 _ 0 , DCI format 0 _ 1 , and DCI format 0 _ 2 , and
the second DCI format is the one of the DCI format 0 _ 0 , the DCI format 0 _ 1 , and the DCI format 0 _ 2 .

3. The UE of claim 1 , wherein
the first DCI format is one of DCI format 0 _ 0 , DCI format 0 _ 1 , and DCI format 0 _ 2 , and
the second DCI format is another one of the DCI format 0 _ 0 , the DCI format 0 _ 1 , and the DCI format 0 _ 2 .

4. A method performed by a user equipment (UE) that communicates with a base station, the method comprising:
receiving a radio resource control (RRC) message used for configuring more than one configured grant (CG) physical uplink shared channel (PUSCH) configuration;
receiving an RRC configuration comprising information used for configuring a list for CG PUSCH configuration release;
detecting a physical downlink control channel (PDCCH) for a first downlink control information (DCI) format with cyclic redundancy check (CRC) scrambled by a first radio network identifier (RNTI), the first DCI format being used for an activation of a CG PUSCH configuration;
detecting a PDCCH for a second DCI format with CRC scrambled by the first RNTI, the second DCI format being used for a deactivation of CG PUSCH configuration(s);
performing, based on a detection of the first DCI format comprising information used for indicating the activation of the CG PUSCH configuration, an uplink data transmission on a PUSCH corresponding to the activated CG PUSCH configuration; and
releasing the CG PUSCH configuration(s), based on a detection of the second DCI format comprising information indicating a) the release of the CG PUSCH configuration(s) and b) indices of the released CG PUSCH configuration(s), and, according to the second DCI format and the information used for configuring the list.

5. A base station that communicates with a user equipment (UE), comprising:
transmitting circuitry configured to:
transmit a radio resource control (RRC) message used for configuring more than one configured grant (CG) physical uplink shared channel (PUSCH) configuration,
transmit an RRC configuration comprising information used for configuring a list for CG PUSCH configuration release,
transmit a physical downlink control channel (PDCCH) for a first downlink control information (DCI) format with cyclic redundancy check (CRC) scrambled by a first radio network identifier (RNTI), the first DCI format being used for an activation of a CG PUSCH configuration, and
transmit a PDCCH for a second DCI format with CRC scrambled by the first RNTI, the second DCI format being used for a deactivation of CG PUSCH configuration(s);
receiving circuitry configured to receive, based on transmission of the first DCI format comprising information used for indicating the activation of the CG PUSCH configuration, an uplink data transmission on a PUSCH corresponding to the activated CG PUSCH configuration, wherein
the second DCI format comprising information indicating a) the release of the CG PUSCH configuration(s) and b) indices of the released CG PUSCH configuration(s) causes the UE to release the CG PUSCH configuration(s) according to the second DCI format and the information used for configuring the list.

Assignees

• Sharp Kk

Inventors

• Ying Kai
• Aiba Tatsushi
• Kowalski John Michael

Classifications

• H04W72/21

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

• H04W72/0453

  Resources in frequency domain, e.g. a carrier in FDMA · CPC title

• H04L5/0055

  Physical resource allocation for ACK/NACK (for physical mapping arrangements in ARQ protocols H04L1/1861) · CPC title

• H04W72/23 Primary

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