公开(公告)号：US10959270B2

公开(公告)日：2021-03-23

申请号：US16446177

申请日：2019-06-19

Applicant: Apple Inc.

Inventor： Huaning Niu ,  Wenting Chang ,  Qiaoyang Ye ,  Salvatore Talarico ,  Rongrong Sun

IPC: H04L12/28 ,  H04W74/08 ,  H04L5/14 ,  H04L29/08 ,  H04W72/04 ,  H04W4/70 ,  H04J1/16 ,  H04W88/02

Abstract: Systems and methods of providing a NPRACH preamble in a multefire system are described. A UE configured for multefire NB-IoT or eMTC operation receives, from an eNB, access information that includes a SIB on a narrowband channel of an unlicensed band. Based on the access information, the UE transmits a NPRACH preamble in two or six contiguous uplink subframes. The NPRACH preamble is transmitted in two or six contiguous subframes. When two subframes are used, four symbol groups each having a 266.7 μs CP and two symbols are transmitted without a gap therebetween. When six subframes are used, four symbol groups each having a 266.7 μs CP and five symbols are transmitted without a gap therebetween.

公开(公告)号：US20210058206A1

公开(公告)日：2021-02-25

申请号：US16496375

申请日：2018-04-12

Applicant: Apple Inc.

Inventor： Qiaoyang Ye ,  Huaning Niu ,  Wenting Chang ,  Salvatore Talarico

IPC: H04L5/00 ,  H04W4/70 ,  H04W16/14 ,  H04W48/10 ,  H04W74/08

Abstract: Technology for a Next Generation NodeB (gNB) operable to communicate over an anchor channel for Unlicensed Internet of Things (U-IoT) is disclosed. The gNB can encode control information for transmission on two discovery reference signal (DRS) subframes to a user equipment 5 (UE). The control information can be transmitted on an anchor channel having a set frequency for U-IoT in an adaptive frequency hopping system. The control information can include: a primary synchronization signal (PSS), a secondary synchronization signal (SSS), a physical broadcast channel (PBCH) transmission, and a system information block for MulteFire bandwidth reduced (SIB-MF10 BR).

公开(公告)号：US10924156B2

公开(公告)日：2021-02-16

申请号：US16261130

申请日：2019-01-29

Applicant: Apple Inc.

Inventor： Salvatore Talarico ,  Huaning Niu ,  Wenting Chang

IPC: H04J3/14 ,  H04L12/26 ,  H04L12/28 ,  H04B1/7143 ,  H04B1/715 ,  H04W4/70 ,  H04W16/14 ,  H04W4/80 ,  H04W76/11

Abstract: Described herein are methods and apparatus for NB-IoT devices to operate in unlicensed spectrum. Frequency hopping patterns are disclosed that enable compliance with applicable regulations. A base station may be configured to operate in Multefire (MF) narrowband internet of things (NB IoT) cell over unlicensed spectrum. The base station may communicate with one or more wireless devices over a specified number N of data channels separate in frequency. The frequencies of the data channels may be specified by a frequency hopping sequence. The base station may be configured to encode an anchor channel for transmission to the one or more wireless devices at a fixed frequency interspersed in time with the data channels.

公开(公告)号：US12250693B2

公开(公告)日：2025-03-11

申请号：US17438261

申请日：2020-03-20

Applicant: APPLE INC.

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

IPC: H04W72/23 ,  H04L1/1607 ,  H04L27/26 ,  H04W72/0446

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 slot, a subframe, or a radio frame.

公开(公告)号：US12200759B2

公开(公告)日：2025-01-14

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: H04W74/0808 ,  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：US12127249B2

公开(公告)日：2024-10-22

申请号：US17420204

申请日：2020-01-08

Applicant: Apple Inc.

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

IPC: H04W74/08 ,  H04W74/0808

CPC classification number: H04W74/0808

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：US12120746B2

公开(公告)日：2024-10-15

申请号：US17441122

申请日：2020-06-19

Applicant: Apple Inc.

Inventor： Carlos H. Aldana ,  Salvatore Talarico ,  Yongjun Kwak ,  Lopamudra Kundu

IPC: H04W74/0833 ,  H04W72/23 ,  H04W74/00

CPC classification number: H04W74/0833 ,  H04W72/23 ,  H04W74/004

Abstract: A user equipment (UE), or other network component can operate to configure channel occupancy time (COT) sharing in random access procedures involving the unlicensed spectrum. At least some of the messages for the procedures can share a COT by configuring one or more gaps or listen-before-talk (LBT) procedures based on the gap or whether the COT sharing is UE or gNB initiated. Some configurations can depend on a location in the random access procedure that COT sharing is acquired.

公开(公告)号：US12081302B2

公开(公告)日：2024-09-03

申请号：US17947390

申请日：2022-09-19

Applicant: Apple Inc.

Inventor： Salvatore Talarico ,  Huaning Niu ,  Wenting Chang

IPC: H04B1/713 ,  H04B7/06 ,  H04L5/00 ,  H04L27/00 ,  H04W16/14 ,  H04W24/10 ,  H04L25/02 ,  H04W4/70 ,  H04W74/0808 ,  H04W76/27

CPC classification number: H04B7/0626 ,  H04B1/713 ,  H04B7/0632 ,  H04L5/001 ,  H04L5/0012 ,  H04L5/0048 ,  H04L5/0051 ,  H04L5/0057 ,  H04L27/0006 ,  H04W16/14 ,  H04W24/10 ,  H04L25/0228 ,  H04W4/70 ,  H04W74/0808 ,  H04W76/27

Abstract: Techniques described herein can facilitate Channel-State Information (CSI) measurement and feedback for communication in unlicensed spectrum or Sounding Reference Signal (SRS) transmission and/or channel-state estimation for communication in unlicensed spectrum. In an example, an apparatus is configured to be employed in a User Equipment (UE), and the apparatus comprises a Radio Frequency (RF) circuitry interface and processing circuitry configured to perform CSI measurement for communication in unlicensed spectrum. The apparatus further generates data for feedback according to the CSI measurement, and sends the data for feedback to RF circuitry via the RF circuitry interface. In an example, a frame structure of a data channel begins with a downlink (DL) transmission or soon after an initial signal. In an example, the CSI measurement includes measuring Channel Quality Information (CQI) for one or more sub-bands.

公开(公告)号：US12035367B2

公开(公告)日：2024-07-09

申请号：US18365112

申请日：2023-08-03

Applicant: Apple Inc.

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

IPC: H04W72/12 ,  H04W74/0808

CPC classification number: H04W74/0808 ,  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：US11956169B2

公开(公告)日：2024-04-09

申请号：US17444022

申请日：2021-07-29

Applicant: APPLE INC.

Inventor： Qiaoyang Ye ,  Huaning Niu ,  Wenting Chang ,  Salvatore Talarico

IPC: H04W16/14 ,  H04L5/00 ,  H04W4/70 ,  H04W48/10 ,  H04W74/0808

CPC classification number: H04L5/0048 ,  H04L5/0012 ,  H04W4/70 ,  H04W16/14 ,  H04W48/10 ,  H04W74/0808

Abstract: Technology for a Next Generation NodeB (gNB) operable to communicate over an anchor channel for Unlicensed Internet of Things (U-IoT) is disclosed. The gNB can encode control information for transmission on two discovery reference signal (DRS) subframes to a user equipment (UE). The control information can be transmitted on an anchor channel having a set frequency for U-IoT in an adaptive frequency hopping system. The control information can include: a primary synchronization signal (PSS), a secondary synchronization signal (SSS), a physical broadcast channel (PBCH) transmission, and a system information block for MulteFire bandwidth reduced (SIB-MF-BR).