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公开(公告)号：US20220201757A1
公开(公告)日：2022-06-23
申请号：US17599697
申请日：2020-03-30
Applicant: Apple Inc.
Inventor： Tom CRUZ , Yingyang LI , Yongjun KWAK
Abstract: An approach is described for a user equipment (UE) for transmission of hybrid automatic repeat request-acknowledgement (HARQ-ACK) feedback in communication with a next-generation NodeB (gNB) using new radio unlicensed (NR-U) in an unlicensed spectrum. The UE receives downlink (DL) data in a first channel occupancy time (COT). The UE also receives a triggering downlink control indicator (DCI) during a second COT, the triggering DCI providing an indication of a HARQ feedback that is pending for a corresponding HARQ process, and the second COT carrying no scheduled DL data. In addition, the UE receives a triggering downlink control indicator (DCI) during a second COT, the triggering DCI providing an indication of a HARQ feedback that is pending for a corresponding HARQ process, and the second COT carrying no scheduled DL data. The UE transmits the HARQ feedback based on the triggering DCI.
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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
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.
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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.
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公开(公告)号：US20220312481A1
公开(公告)日：2022-09-29
申请号：US17419678
申请日：2020-01-09
Applicant: Apple Inc.
Inventor： Salvatore TALARICO , Gang XIONG , Yingyang LI , Carlos H. ALDANA
Abstract: Systems, apparatuses, methods, and computer-readable media are provided for wireless communication using an unlicensed spectrum. An access point (AP) operating in the unlicensed spectrum includes a processor circuitry, a transmitter, and a receiver. The processor circuitry is configured to perform a listen before talk (LBT) procedure using an LBT parameter and a maximum channel occupancy time (MCOT) that is compatible with another wireless protocol using the unlicensed spectrum. The processor circuitry is configured to divide a transport block (TB) into a plurality of code block groups (CBGs) for transmission over the unlicensed spectrum. The transmitter is configured to transmit the plurality of CBGs to a destination, and a receiver is configured to receive hybrid automatic repeat and request acknowledgment (HARQ-ACK) information corresponding to the transmitted plurality of CBGs. The processor circuitry is further configured to determine a HARQ-ACK assessment for the TB based on the HARQ-ACK information corresponding to the transmitted plurality of CBGs, and adjust a contention window size based on the HARQ-ACK assessment for the TB.
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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
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.
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Patent Agency Ranking
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
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.
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公开(公告)号：US20220070910A1
公开(公告)日：2022-03-03
申请号：US17420575
申请日：2020-01-11
Applicant: Apple Inc.
Inventor： Yingyang LI , Salvatore TALARICO , Yongjun KWAK , Jose Armando OVIEDO
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.
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8.发明申请公开(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
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
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公开(公告)号：US20220183060A1
公开(公告)日：2022-06-09
申请号：US17593669
申请日：2020-04-29
Applicant: Apple Inc.
Inventor： Yingyang LI , Yushu ZHANG , Gang XIONG , Yongjun KWAK , Lopamudra KUNDU
Abstract: Devices, systems and methods for a fifth generation (5G) or new radio (NR) system comprising determining a configuration for an uplink (UL) transmission resource with respect to a listen before talk (LBT) operation on an unlicensed spectrum and transmitting uplink control information (UCI) on the UL transmission resource based on the configuration subjected to the LBT operation.
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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
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.
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