公开(公告)号：US12289618B2

公开(公告)日：2025-04-29

申请号：US17916850

申请日：2020-04-08

Applicant: Apple Inc.

Inventor： Yushu Zhang ,  Chunhai Yao ,  Chunxuan Ye ,  Dawei Zhang ,  Fangli Xu ,  Haijing Hu ,  Haitong Sun ,  Hong He ,  Jie Cui ,  Oghenekome Oteri ,  Wei Zeng ,  Weidong Yang ,  Yang Tang ,  Yuchul Kim ,  Yuqin Chen

IPC: H04W16/28 ,  H04L5/00 ,  H04W80/02

Abstract: Apparatuses, systems, and methods for overhead reduction for multi-carrier beam selection and power control. A user equipment device (UE) may receive an uplink beam configuration for a group of component carriers and may communicate using the uplink beam configuration for the group of component carriers. The UE may receive an updated uplink beam configuration for the group of component carriers. The update uplink beam configuration may include a medium access control (MAC) control element (CE) that may update a pathloss reference signal for the group of component carriers. The MAC CE may include an indication of a spatial relation for aperiodic or semi-persistent sounding reference signals for the group of component carriers, an indication of a transmission control indicator for a physical downlink control channel, an indication of an update for a physical uplink shared channel, and/or an indication of an update for a sounding reference signal.

公开(公告)号：US12273741B2

公开(公告)日：2025-04-08

申请号：US17757312

申请日：2020-12-15

Applicant: APPLE INC.

Inventor： Jie Cui ,  Yang Tang ,  Dawei Zhang ,  Hong He ,  Chunhai Yao ,  Chunxuan Ye ,  Haitong Sun ,  Weidong Yang ,  Wei Zeng ,  Yuchul Kim ,  Yushu Zhang ,  Zhibin Wu ,  Oghenekome Oteri

IPC: H04W16/28 ,  H04L5/00 ,  H04W56/00 ,  H04W74/0833

Abstract: Methods and apparatus are provided for a UE to determine a UL spatial relation for an UL transmission in response to an unknown UL spatial relation switch. The UE may determine whether the UL spatial relation is based on an SRS transmission in UL, a CSI-RS in DL, or an SSB in the DL. If the UL spatial relation is based on the SRS transmission, the UE may select the UL spatial relation for the UL transmission corresponding to a Tx beam of the SRS transmission. If the UL spatial relation is based on the CSI-RS or the SSB, the UE may select the UL spatial relation for the UL transmission based on whether the unknown UL spatial relation switch is due to a corresponding resource for beam training not being configured by a communication network or a corresponding beam information being expired.

公开(公告)号：US20250088218A1

公开(公告)日：2025-03-13

申请号：US18958557

申请日：2024-11-25

Applicant: Apple Inc.

Inventor： Yushu Zhang ,  Haitong Sun ,  Wei Zeng ,  Dawei Zhang ,  Yuchul Kim ,  Hong He ,  Weidong Yang ,  Chunxuan Ye ,  Chunhai Yao ,  Oghenekome Oteri ,  Wei Zhang ,  Jia Tang ,  Tianyan Pu ,  Pengkai Zhao

IPC: H04B7/022 ,  H04L5/00

Abstract: In an example method, a user equipment (UE) device determines one or more component carriers available to the UE device for at least one of transmitting or receiving data over a wireless network. The UE device transmits, to the wireless network, for each component carrier, an indication whether the component carrier supports at least one of transmitting or receiving data according to a multi-transmission and receiving points (multi-TRP) communication protocol.

公开(公告)号：US12250723B2

公开(公告)日：2025-03-11

申请号：US17441362

申请日：2020-05-14

Applicant: Apple Inc.

Inventor： Hong He ,  Chunhai Yao ,  Chunxuan Ye ,  Dawei Zhang ,  Haitong Sun ,  Jie Cui ,  Oghenekome Oteri ,  Wei Zeng ,  Wei Zhang ,  Weidong Yang ,  Yang Tang ,  Yuchul Kim ,  Yushu Zhang ,  Zhibin Wu

IPC: H04W74/0816 ,  H04W72/12 ,  H04W72/21 ,  H04W74/08

Abstract: Methods and apparatuses are disclosed for signaling unused channel occupancy time (COT) to the gNB for COT sharing among other UEs. Upon determining that a portion of the maximum COT (MCOT) provided to the UE will be unused, the UE can generate COT sharing information for transmission back to the gNB. The COT sharing information identifies a starting point and a duration (e.g., a number of consecutive slots) of the unused portion of the MCOT. This information is then encoded into configured grant uplink control information (UG-UCI) and transmitted to the gNB as part of the uplink transmission. In aspects, the unused portion may begin part-way through a slot. In this instance, a starting symbol of the unused portion or an ending symbol of the used portion may also be encoded into the uplink transmission. In this manner, unused COT is not wasted, but rather repurposed by the gNB.

公开(公告)号：US20250063568A1

公开(公告)日：2025-02-20

申请号：US18761044

申请日：2024-07-01

Applicant: Apple Inc.

Inventor： Fangli Xu ,  Yushu Zhang ,  Haitong Sun ,  Sarma V. Vangala ,  Wei Zeng ,  Dawei Zhang ,  Yuchul Kim

IPC: H04W72/23 ,  H04L5/00 ,  H04W68/00

Abstract: An example method for wireless communication includes: transmitting by a base station, to a user device in a reduced power state, resource information for receiving a channel state information reference signal (CSI-RS) and tracking reference signal (TRS); transmitting the CSI-RS and TRS based on the transmitted resource information to the user device, wherein the user device has exited the reduced power state; determining whether there is paging information to transmit in a first physical downlink shared channel (PDSCH) transmission for the user device; transmitting a downlink control information message, wherein the downlink control information message is based on the determination that there is paging information for the user device, and wherein the user device has synchronized with the base station; and transmitting the first PDSCH transmission, based on the determination that there is paging information for the user device.

公开(公告)号：US12206603B2

公开(公告)日：2025-01-21

申请号：US17598203

申请日：2020-02-12

Applicant: Apple Inc.

Inventor： Hong He ,  Dawei Zhang ,  Wei Zeng ,  Chunhai Yao ,  Haitong Sun ,  Yuchul Kim ,  Yushu Zhang ,  Chunxuan Ye ,  Oghenekome Oteri ,  Weidong Yang ,  Yang Tang ,  Jie Cui ,  Zhibin Wu ,  Haijing Hu

IPC: H04W72/00 ,  H04L5/00 ,  H04W72/0453 ,  H04W72/23

Abstract: A method and apparatus of a device that determines a physical downlink shared channel scheduling resource for a user equipment device and a base station is described. In an exemplary embodiment, the device selects a plurality of component carriers from a pool of available component carriers associated with a wireless link established between the user equipment device and the base station. In addition, the device selects a virtual component carrier from the plurality of component carriers. Furthermore, the device determines a physical downlink shared channel scheduling resource based on at least the virtual component carrier.

公开(公告)号：US12177811B2

公开(公告)日：2024-12-24

申请号：US17593675

申请日：2020-07-21

Applicant: Apple Inc.

Inventor： Fangli Xu ,  Dawei Zhang ,  Haijing Hu ,  Murtaza A. Shikari ,  Sarma V. Vangala ,  Sethuraman Gurumoorthy ,  Srirang A. Lovlekar ,  Wei Zeng ,  Yuchul Kim ,  Yuqin Chen ,  Zhibin Wu

IPC: H04W68/02 ,  H04W72/23

Abstract: A user equipment (UE) monitoring for a page in a 5G network. The UE monitoring a paging occasion corresponding to the UE in a Physical Downlink Control Channel (PDCCH) to determine whether the paging occasion includes paging downlink control information (DCI), when the PDCCH includes the paging DCI, decoding the paging DCI to determine whether the paging DCI includes scheduling information for a Physical Downlink Shared Channel (PDSCH), determining, based on at least the scheduling information, whether to receive the PDSCH in a scheduled slot that is offset N slots from a scheduled slot in which the paging DCI is received and when it is determined to receive the PDSCH, decoding the PDSCH.

公开(公告)号：US20240397395A1

公开(公告)日：2024-11-28

申请号：US18792295

申请日：2024-08-01

Applicant: Apple Inc.

Inventor： Jie Cui ,  Fangli Xu ,  Dawei Zhang ,  Hong He ,  Murtaza A. Shikari ,  Yang Tang ,  Yuchul Kim ,  Zhibin Wu

IPC: H04W36/00 ,  H04L5/00 ,  H04W64/00 ,  H04W72/0446 ,  H04W72/51

Abstract: Methods and apparatus are disclosed for a UE and its serving base station to coordinate the activation and deactivation of measurement gaps for performing positioning measurements by the UE using target positioning reference signals (PRS) during bandwidth part (BWP) switching. The UE may be configured by the serving base station to have dedicated measurement gaps. The UE determines if a legacy measurement gap used for mobility measurements or a scheduled data transmission collides with the dedicated measurement gaps. If there is a collision, the UE performs the mobility measurement using the legacy measurement gap or transmits the scheduled data. If there is no collision, the UE receives the PRS to perform the positioning measurement during the dedicated measurement gaps. In one embodiment, based on the status of the active BWP and the target PRS, the UE or the base station may activate or deactivate measurement gaps for the positioning measurements.

公开(公告)号：US12143325B2

公开(公告)日：2024-11-12

申请号：US17593455

申请日：2020-05-15

Applicant: Apple Inc.

Inventor： Yushu Zhang ,  Chunhai Yao ,  Chunxuan Ye ,  Dawei Zhang ,  Fangli Xu ,  Haijing Hu ,  Haitong Sun ,  Hong He ,  Jie Cui ,  Oghenekome Oteri ,  Wei Zeng ,  Weidong Yang ,  Yang Tang ,  Yuchul Kim ,  Yuqin Chen

IPC: H04L5/00 ,  H04L1/20

Abstract: User equipment (UE) operation in a single frequency network (SFN). The UE may receive one or more transmission configuration indication (TCI) states corresponding to one or more downlink resources, receive a demodulated reference signal (DMRS) wherein the DMRS is quasi co-located (QCLed) with one or more channel state information reference signal (CSI-RS) from multiple cells of a SFN and quasi co-location (QCL) information is included in the one or more TCI and determine a time and frequency offset corresponding to each of the multiple cells based on the CSI-RS.

公开(公告)号：US12113737B2

公开(公告)日：2024-10-08

申请号：US17598217

申请日：2020-05-14

Applicant: Apple Inc.

Inventor： Chunhai Yao ,  Chunxuan Ye ,  Dawei Zhang ,  Fangli Xu ,  Haijing Hu ,  Haitong Sun ,  Hong He ,  Jie Cui ,  Oghenekome Oteri ,  Shu Guo ,  Wei Zeng ,  Weidong Yang ,  Yang Tang ,  Yuchul Kim ,  Yuqin Chen ,  Yushu Zhang

IPC: H04L5/00 ,  H04W72/0453 ,  H04W72/23

CPC classification number: H04L5/0048 ,  H04W72/0453 ,  H04W72/23

Abstract: Methods to enhance the coverage of NR systems for coverage-limited wireless devices are disclosed. A serving base station may configure a coverage-limited UE with parameters for the UE to operate in a coverage enhancement mode through RRC signaling, DCI, or RAR grant. The UE may use the configuration parameters to determine whether to enter into the coverage enhancement mode when connecting and communicating with the serving base station. The configuration parameters may configure the UE to exploit both time diversity and frequency diversity to extend and enhance coverage when receiving the PDSCH and PDCCH channels, when transmitting the PUSCH and PUCCH channel, and when transmitting PUSCH Msg3 during random access. Advantageously, the base station may flexibly and dynamically configure the UE with coverage enhancement parameters to extend the coverage of the UE using time diversity and frequency diversity gains as the UE moves around.