公开(公告)号：US20220167407A1

公开(公告)日：2022-05-26

申请号：US17430847

申请日：2020-02-16

Applicant: Apple Inc.

Inventor： Jose Armando OVIEDO ,  Yingyang LI ,  Salvatore TALARICO ,  Yongjun KWAK

IPC: H04W74/08 ,  H04W74/00 ,  H04W72/04

Abstract: Some embodiments of this disclosure include systems, apparatuses, methods, and computer-readable media for a shared channel occupancy time (COT) procedure in a wireless channel of unlicensed spectrum. The shared COT can be utilized among one or more user equipment (UE) and a 5G Node B (gNB). A UE contends for access to the channel to acquire the COT, and transmits in the uplink (UL) according to the UEs time-domain configuration. When the UL transmission does not utilize the entire COT, the UE can signal to the gNB that the COT can be shared. In particular, the UE transmits an indication of a COT boundary that the gNB can use to determine when to transmit DL data in the shared COT. The COT can also be shared between two or more UEs in addition to the gNB.

公开(公告)号：US20220109532A1

公开(公告)日：2022-04-07

申请号：US17429871

申请日：2020-02-11

Applicant: Apple Inc.

Inventor： Salvatore TALARICO ,  Gang XIONG ,  Yingyang LI ,  Carlos H. ALDANA

IPC: H04L1/18 ,  H04L27/00 ,  H04L5/00 ,  H04W74/08

Abstract: Some embodiments of this disclosure include systems, apparatuses, methods, and computer-readable media for use in a wireless network for facilitating retransmission procedures in New Radio (NR) technologies. Some embodiments are directed to a method that includes determining a contention window size (CWS) of an uplink/downlink (UL/DL) communication channel in a new radio unlicensed (NR-U) spectrum. The method also includes adjusting the CWS based on: defining a reference UL/DL burst set at a predetermined time length independent from a subcarrier spacing and partially spanning an UL/DL burst, and counting one or more code block groups (CBGs) in the reference UL/DL burst. The method further includes scheduling a retransmission of an UL/DL communication in the NR-U spectrum based on the adjusted CWS.

公开(公告)号：US20220183053A1

公开(公告)日：2022-06-09

申请号：US17440678

申请日：2020-04-29

Applicant: Apple Inc.

Inventor： Yingyang LI ,  Salvatore TALARICO ,  Yongjun KWAK ,  Jose Armando OVIEDO ,  Hong HE ,  Gang XIONG

IPC: H04W74/00 ,  H04W74/08

Abstract: Systems, methods, and apparatuses disclosed herein can perform uplink (UL) transmission in new radio (NR) systems operating on an unlicensed spectrum. These systems, methods, and apparatuses can receive a downlink (DL) signal comprising information associated with listen before talk (LBT) type. These systems, methods, and apparatuses can perform the UL transmission based on the LBT type.

公开(公告)号：US20220070923A1

公开(公告)日：2022-03-03

申请号：US17420204

申请日：2020-01-08

Applicant: Apple Inc.

Inventor： Yingyang LI ,  Salvatore TALARICO ,  Carlos H. ALDANA

IPC: H04W74/08

Abstract: The present disclosure is directed to systems and methods for controlling a number of allowed downlink/uplink (DL/UL) switching points. For example, the method may include acquiring a shared channel occupancy time (COT) that includes one or more DL bursts and/or UL bursts. The method may also include utilizing one or more of the DL bursts or the UL bursts as a reference burst. The method may also include deriving a metric for controlling the number of DL/UL switching points in the shared COT based on the reference burst. The method may also include comparing the metric to a threshold value. The method may also include setting the number of DL/UL switching points in the shared COT based on the comparison of the metric to the threshold value.

公开(公告)号：US20210037508A1

公开(公告)日：2021-02-04

申请号：US16995693

申请日：2020-08-17

Applicant: Apple Inc.

Inventor： Salvatore TALARICO ,  Qiaoyang YE ,  Wenting CHANG ,  Huaning NIU

IPC: H04W72/04 ,  H04W72/12

Abstract: Described is an apparatus of a User Equipment (UE). The apparatus may comprise a first circuitry and a second circuitry. The first circuitry may be operable to process a first Downlink Control Information (DCI) format 0A transmission indicating a semi-persistent scheduling (SPS) activation. The first circuitry may also be operable to process a second DCI format 0A transmission indicating an SPS release. The second circuitry may be operable to generate one or more Uplink (UL) transmissions for an unlicensed spectrum of the wireless network after the SPS activation and before the SPS release in accordance with a configured schedule.

公开(公告)号：US20220191916A1

公开(公告)日：2022-06-16

申请号：US17438261

申请日：2020-03-20

Applicant: APPLE INC.

Inventor： Salvatore TALARICO ,  Yongjun KWAK ,  Jose Armando OVIEDO ,  Yingyang LI

IPC: H04W72/14 ,  H04W72/04 ,  H04L1/16 ,  H04L27/26

Abstract: Some embodiments of this disclosure include systems, apparatuses, methods, and computer-readable media for use in a wireless network for time-domain resource allocation for configured grant transmissions in New Radio (NR) systems. For example, some embodiments are directed to an electronic device including radio front end circuitry and processor circuitry coupled to the radio front end circuitry. The processor circuitry can be configured to generate a radio resource control (RRC) signal including a bitmap for configuring time-domain resources for configured grant (CG) operation. The processor circuitry can be further configured to transmit, using the radio front end circuitry, the RRC signal to a user equipment (UE) to configure the time-domain resources. The bitmap comprises a plurality of resource units and wherein each resource unit in the plurality of resource units corresponds to a symbol, a

公开(公告)号：US20220174735A1

公开(公告)日：2022-06-02

申请号：US17442134

申请日：2020-03-27

Applicant: Apple Inc.

Inventor： Yingyang LI ,  Salvatore TALARICO ,  Yongjun KWAK ,  Jose Armando OVIEDO ,  Hong HE ,  Gang XIONG

IPC: H04W74/08 ,  H04W16/14

Abstract: Systems, methods, and apparatuses disclosed herein can operate on an unlicensed spectrum. These systems, methods, and apparatuses can perform a first listen-before-talk (LBT) operation of a LBT protocol in a first slot from among multiple slots to determine whether the unlicensed spectrum is unoccupied. Thereafter, these systems, methods, and apparatuses can transmit an uplink (UL) transmission in other slots from among the plurality of slots in response to the unlicensed spectrum being unoccupied. Otherwise, these systems, methods, and apparatuses can perform a second LBT operation in a second slot from among the plurality of slots in response to the unlicensed spectrum being occupied.

公开(公告)号：US20220131725A1

公开(公告)日：2022-04-28

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 ,  H04W74/08

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：US20210306834A1

公开(公告)日：2021-09-30

申请号：US17264685

申请日：2019-07-31

Applicant: Apple Inc.

Inventor： Wenting CHANG ,  Huaning NIU ,  Salvatore TALARICO ,  Qiaoyang YE ,  Rongrong SUN

IPC: H04W4/80 ,  H04L5/00 ,  H04L27/26 ,  H04W72/04

Abstract: Embodiments of the present disclosure provide for narrowband reference signals transmission. A base station is configured to: generate downlink transmissions for unlicensed Internet of things (U-IoT) communication, the downlink transmissions to include an anchor segment on a first plurality of subframes and a data segment on a second plurality of subframes, wherein the anchor segment includes a narrowband reference signal (NRS) configured to be transmitted at a first transmit power by the base station, to facilitate time or frequency tracking and cause transmission of the downlink frame for the U-IoT communication. And a user equipment is configured to receive the NRSs transmitted by the base station and process transmissions based on reception of the NRSs.

公开(公告)号：US20210298075A1

公开(公告)日：2021-09-23

申请号：US17257716

申请日：2019-08-07

Applicant: Apple Inc.

Inventor： Salvatore TALARICO ,  Jeongho JEON ,  Gang XIONG ,  Yingyang LI ,  Carlos ALDANA

IPC: H04W74/08 ,  H04W16/14 ,  H04L1/18 ,  H04W72/04

Abstract: Systems and methods of adjusting contention window size (CWS) in a LBT procedure for both UL and DL unlicensed spectrum transmissions are described. The UE makes a HARQ-ACK determination for at least one code block group (CBG) of a transport block (TB) in a reference burst from a base station, determines whether the HARQ-ACK determination for the CBG meets a predetermined number of NACKs, transmits to the base station a single bit HARQ-ACK feedback for the TB that is dependent on whether the predetermined number of NACKs has been met, and receives or determines the adjusted CWS and uses the adjusted CWS for communication with the base station.