User equipments, base stations and methods for indication of uplink transmission

Patent metadata

Field	Value
Publication number	US-12349125-B2
Application number	US-202017605365-A
Country	US
Kind code	B2
Filing date	Mar 23, 2020
Priority date	Apr 23, 2019
Publication date	Jul 1, 2025
Grant date	Jul 1, 2025

Abstract

A user equipment (UE) is described. The UE includes receiving circuitry configured to receive a first DCI format comprising one bit of an uplink shared channel (UL-SCH) indicator, the first DCI format being used for scheduling of a PUSCH. The receiving circuitry is also configured to receive a second DCI format comprising more than one bits of an UL-SCH indicator, the second DCI format being used for scheduling of a PUSCH. The UE also includes transmitting circuitry configured to perform, based on a detection of the first DCI format, a transmission on the PUSCH. The transmitting circuitry is also configured to perform, based on a detection of the second DCI format, a transmission on the PUSCH. The one bit of the UL-SCH indicator is used for indicating whether or not UL-SCH is transmitted on the PUSCH. The more than one bits of the UL-SCH indicator are used for indicating whether or not UCI is transmitted on the PUSCH.

First claim

What is claimed is:

1. A user equipment (UE) comprising:
receiving circuitry configured to receive a first downlink control information (DCI) format comprising one bit of a first uplink shared channel (UL-SCH) indicator, the first DCI format being used for scheduling of a first physical uplink shared channel (PUSCH); and
transmitting circuitry configured to perform, based on a detection of the first DCI format, a transmission on the first PUSCH, wherein
the receiving circuitry is further configured to receive a second DCI format comprising zero bit or one bit of a second UL-SCH indicator, the second DCI format being used for scheduling of a second PUSCH,
the transmitting circuitry is further configured to perform, based on a detection of the second DCI format, a transmission on the second PUSCH,
in a case that a number of bits of the second UL-SCH indicator is zero, the transmitting circuitry is further configured to determine that the number of bits of the second UL-SCH indicator is zero,
in a case that the number of bits of the second UL-SCH indicator is one, the transmitting circuitry is further configured to determine that the number of bits of the second UL-SCH indicator is one,
the first UL-SCH indicator indicates whether or not a UL-SCH is transmitted on the first PUSCH, and
in a case that the number of bits of the second UL-SCH indicator is one, the second UL-SCH indicator indicates whether or not a UL-SCH is transmitted on the second PUSCH.

2. A method performed by a user equipment (UE), the method comprising:
receiving a first downlink control information (DCI) format comprising one bit of a first uplink shared channel (UL-SCH) indicator, the first DCI format being used for scheduling of a first physical uplink shared channel (PUSCH);
performing, based on a detection of the first DCI format, a transmission on the first PUSCH;
receiving a second DCI format comprising zero bit or one bit of a second UL-SCH indicator, the second DCI format being used for scheduling of a second PUSCH;
performing, based on a detection of the second DCI format, a transmission on the second PUSCH;
in a case that a number of bits of the second UL-SCH indicator is zero, determining that the number of bits of the second UL-SCH indicator is zero;
in a case that the number of bits of the second UL-SCH indicator is one, determining that the number of bits of the second UL-SCH indicator is one bit, wherein
the first UL-SCH indicator indicates whether or not a UL-SCH is transmitted on the first PUSCH, and
in a case that the number of bits of the second UL-SCH indicator is one, the second UL-SCH indicator indicates whether or not a UL-SCH is transmitted on the second PUSCH.

Assignees

• Sharp Kk

Inventors

• Aiba Tatsushi
• Ying Kai
• Yokomakura Kazunari

Classifications

• H04W72/23

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

• H04L5/0053

  Allocation of signalling, i.e. of overhead other than pilot signals · CPC title

• H04L1/1812

  Hybrid protocols; Hybrid automatic repeat request [HARQ] · CPC title

• H04W72/20

  Control channels or signalling for resource management · CPC title

• H04L5/0007

  the frequencies being orthogonal, e.g. OFDM(A) or DMT · CPC title