公开(公告)号：US11122553B2

公开(公告)日：2021-09-14

申请号：US16496882

申请日：2018-03-20

Applicant: Apple Inc.

Inventor： Qiaoyang Ye ,  Debdeep Chatterjee ,  Gang Xiong ,  Bharat Shrestha ,  Salvatore Talarico

IPC: H04W72/04 ,  H04W76/30 ,  H04L1/18

Abstract: Systems and methods of early termination of uplink data transmissions for a UE are described. The UE transmits capacity information that indicates that the UE supports use of an ETS. The ETS indicates successful reception by the eNB of the uplink data prior to an end of a scheduled transmission period to transmit repeated instances of the data. The UE receives a schedule for repeated transmissions of the data that is based on a coverage level of the UE, and then transmits sets of one or more repetitions. After the transmission, the UE monitors a predetermined resource whether the ETS is present or whether the ETS indicates an ACK. If the ETS indicates successful reception, the UE terminates transmission of the remaining repetitions of the data and enters a sleep mode or transmits other uplink data.

公开(公告)号：US11063706B2

公开(公告)日：2021-07-13

申请号：US16494544

申请日：2018-04-13

Applicant: Apple Inc.

Inventor： Wenting Chang ,  Huaning Niu ,  Salvatore Talarico ,  Qiaoyang Ye ,  Anthony Lee ,  Seau S. Lim

IPC: H04L1/18 ,  H04W76/11 ,  H04W76/27 ,  H04W24/08 ,  H04W72/04 ,  H04W72/12 ,  H04W74/08

Abstract: Embodiments of an Evolved Node-B (eNB), User Equipment (UE) and methods for communication are generally described herein. The eNB may receive, from a UE, uplink control information (UCI) that indicates a hybrid automatic repeat request identifier (HARQ ID) for a grant-less uplink (GUL) transmission by the UE during a first sub-frame. The eNB may select, from candidate HARQ IDs, a HARQ ID for a scheduled uplink (SUL) transmission by another UE in a second sub-frame after the first sub-frame. The eNB may, if the GUL transmission is successfully decoded, include the HARQ ID for the GUL transmission in the candidate HARQ IDs for the GUL transmission. The eNB may, if the GUL transmission is not successfully decoded, exclude the HARQ ID for the GUL transmission from the candidate HARQ IDs for the GUL transmission.

公开(公告)号：US10980086B2

公开(公告)日：2021-04-13

申请号：US16465998

申请日：2018-03-23

Applicant: APPLE INC.

Inventor： Qiaoyang Ye ,  Debdeep Chatterjee ,  Salvatore Talarico

IPC: H04L1/00 ,  H04W88/06 ,  H04W4/70 ,  H04L27/00 ,  H04L27/36 ,  H04W8/24

Abstract: Technology for a user equipment (UE), configured for coverage enhanced (CE) machine type communication (MTC) is disclosed. The UE can encode, at the UE, a UE capability message for transmission to a next generation node B (gNB) or evolved Node B (eNB), wherein the UE capability message includes a capability to support communication using a modulation and coding scheme (MCS) that includes 64 quadrature amplitude modulation (QAM). The UE can decode, at the UE, a higher layer signaling message to configure the UE to operate in a CE mode A. The UE can decode, at the UE, data received in a physical downlink shared channel (PDSCH) transmission to the UE that is modulated using a 64 QAM.

公开(公告)号：US20200351941A1

公开(公告)日：2020-11-05

申请号：US16865197

申请日：2020-05-01

Applicant: Apple Inc.

Inventor： Carlos H. Aldana ,  Yongjun Kwak ,  Yingyang Li ,  Salvatore Talarico

IPC: H04W74/08 ,  H04W72/12

Abstract: Methods and apparatus are disclosed for a UE and its serving base station in 5G NR systems to signal channel scan or channel sensing to allow channel occupancy time (COT) sharing before transmissions. The COT sharing may be initiated by the base station or by the UE by asserting a CCA indication to enable channel sensing by a UE or base station, respectively. When the UE receives and decodes the asserted CCA indication during downlink transmission, the UE may perform channel sensing during a short interframe space (SIFS) between the downlink transmission and a scheduled uplink transmission. When the UE detects that the sensed RF energy across an intended transmission band is greater than an energy detect threshold, the UE may refrain from transmitting during the scheduled uplink transmission. Otherwise or when the CCA indication is de-asserted, the UE may transmit during the scheduled uplink transmission without performing channel sensing.

公开(公告)号：US10785803B2

公开(公告)日：2020-09-22

申请号：US16163191

申请日：2018-10-17

Applicant: Apple Inc.

Inventor： Huaning Niu ,  Anthony Lee ,  Seau S. Lim ,  Wenting Chang ,  Salvatore Talarico

IPC: H04W4/00 ,  H04W74/08 ,  H04B7/06 ,  H04W72/04 ,  H04W72/14

Abstract: Embodiments of the present disclosure describe simplified RACH procedure and configuration for an eMTC system operating on unlicensed spectrum.

公开(公告)号：US12166609B2

公开(公告)日：2024-12-10

申请号：US17427498

申请日：2020-02-13

Applicant: Apple Inc.

Inventor： Yingyang Li ,  Salvatore Talarico ,  Yongjun Kwak

IPC: H04L27/00 ,  H04L5/00 ,  H04L5/14 ,  H04W74/0816 ,  H04W16/14

Abstract: Some embodiments of this disclosure include systems, apparatuses, methods, and computer-readable media for use in a wireless network for generating and using slot format indicator (SFI) and channel occupancy time (COT) structure in new radio (NR) systems operating on unlicensed spectrum. For example, some embodiments are directed to a base station that includes radio front end circuitry and processor circuitry. The processor circuitry can be configured to generate a slot format indicator (SFI) associated with a channel occupancy time (COT) structure. The SFI indicates whether one or more slots associated with the COT structure are to be used for downlink (DL) symbols, uplink (UL) symbols, or flexible symbols. The flexible symbols form one or more gaps in the COT structure in response to the flexible symbols not being overridden as a DL transmission or a UL transmission. The processor circuitry can further be configured to transmit the SFI to a user equipment (UE).

公开(公告)号：US12035363B2

公开(公告)日：2024-07-09

申请号：US17269321

申请日：2019-08-28

Applicant: Apple Inc.

Inventor： Salvatore Talarico ,  Huaning Niu ,  Anthony Lee ,  Wenting Chang

IPC: H04W74/08 ,  H04L5/00 ,  H04L5/14 ,  H04W16/14 ,  H04W74/0808

CPC classification number: H04W74/0808 ,  H04L5/005 ,  H04L5/14 ,  H04W16/14

Abstract: Systems, apparatuses, methods, and computer-readable media are provided for a user equipment (UE) device that includes one or more processors configured to determine, based on a DL signal in an LTE-TDD radio frame, that an eNB has assessed, based on a Cat-2 listen before talk (LBT) procedure, that a radio frame is valid; and in response to determining that the radio frame is valid, transmitting a UL burst within a predetermined period of time after a DL burst in the radio frame.

公开(公告)号：US12028867B2

公开(公告)日：2024-07-02

申请号：US17420575

申请日：2020-01-11

Applicant: Apple Inc.

Inventor： Yingyang Li ,  Salvatore Talarico ,  Yongjun Kwak ,  Jose Armando Oviedo

IPC: H04W72/23 ,  H04L1/1607 ,  H04L1/1812 ,  H04L1/1867

CPC classification number: H04W72/23 ,  H04L1/1614 ,  H04L1/1812 ,  H04L1/1887

Abstract: Systems, apparatuses, methods, and computer-readable media are provided for a wireless communication on an unlicensed spectrum. An access point (AP) of the wireless communication system includes a processor circuitry, and radio front end circuitry coupled to the processor circuitry. The processor circuitry is configured to schedule multiple transmission time intervals (multi-TTIs) in a physical uplink shared channel (PUSCH) in the unlicensed spectrum. The processor circuitry is configured to generate a downlink control information (DCI) to include the scheduled multi-TTIs and a hybrid automatic repeat and request acknowledgement (HARQACK) assessment information associated with the scheduled multi-TTIs. The radio front end circuitry is configured to transmit the DCI to a user equipment (UE) over the unlicensed spectrum.

公开(公告)号：US12022512B2

公开(公告)日：2024-06-25

申请号：US17441532

申请日：2020-05-01

Applicant: Apple Inc.

Inventor： Yongjun Kwak ,  Lopamudra Kundu ,  Salvatore Talarico ,  Yingyang Li

IPC: H04W74/0816 ,  H04L1/00 ,  H04W72/0446 ,  H04W74/00 ,  H04W74/08

CPC classification number: H04W74/0816 ,  H04L1/0068 ,  H04W72/0446 ,  H04W74/006 ,  H04W74/0866

Abstract: Systems, devices, and techniques for listen-before-talk (LBT) operations in unlicensed spectrum are described. A described technique includes receiving, by a user equipment (UE), a downlink control information (DCI) message, the DCI message including available bandwidth information and a channel occupancy time (COT) duration, the available bandwidth information being associated with one or more LBT bandwidths of a bandwidth part (BWP) in unlicensed spectrum; receiving, by the UE, one or more physical downlink shared channel (PDSCH) transmissions in the BWP, during the COT duration; and processing the one or more PDSCH transmissions based on the available bandwidth information.

公开(公告)号：US11997040B2

公开(公告)日：2024-05-28

申请号：US17748184

申请日：2022-05-19

Applicant: Apple Inc.

Inventor： Qiaoyang Ye ,  Debdeep Chatterjee ,  Salvatore Talarico

IPC: H04L5/00

CPC classification number: H04L5/005 ,  H04L5/0007 ,  H04L5/0046 ,  H04L5/0051 ,  H04L5/0073 ,  H04L5/0048

Abstract: A network device such as an evolved NodeB (eNB) or next generation NodeB (gNB) can configure a set of user equipment (UE) for cell reference signal (CRS) muting in order to provide better channel quality and power efficiency in communications. Where an eNB mutes CRS transmissions that are not needed by any UE, an improvement in downlink throughput and reduce connection drop rate can be generated. A CRS muting capability can be determined based on a user equipment (UE) capability information. According to the CRS muting capability of a UE, the CRS can be transmitted at frequency locations based on CRS muting configuration parameters.