公开(公告)号：US10660114B2

公开(公告)日：2020-05-19

申请号：US15969653

申请日：2018-05-02

Applicant: Apple Inc.

Inventor： Yang Li ,  Wei Zeng ,  Zhu Ji ,  Beibei Wang ,  Jia Tang ,  Yuchul Kim ,  Haijing Hu ,  Dawei Zhang ,  Xiangying Yang ,  Sami M. Almalfouh ,  Johnson O. Sebeni ,  Wei Zhang ,  Tianyan Pu

IPC: H04W72/12 ,  H04W76/16 ,  H04J1/00 ,  H04W84/04 ,  H04W88/06

Abstract: Apparatuses, systems, and methods for a wireless device to perform simultaneous uplink activity for multiple RATs in the same carrier using frequency division multiplexing. The wireless device may establish a first wireless link with a first base station according to a first radio access technology (RAT) and a second wireless link with a second base station according to a second RAT. The first base station may provide a first cell operating in a first system bandwidth and the second base station may provide a second cell operating in a second system bandwidth. The wireless device may determine whether the wireless device has uplink activity scheduled according to both the first RAT and the second RAT. If so, the wireless device may perform uplink activity for both the first RAT and the second RAT in the first system bandwidth using frequency division multiplexing.

公开(公告)号：US10609700B2

公开(公告)日：2020-03-31

申请号：US15923078

申请日：2018-03-16

Applicant: Apple Inc.

Inventor： Johnson O. Sebeni ,  Yang Li ,  Zhu Ji ,  Yuchul Kim ,  Wei Zeng ,  Dawei Zhang ,  Haijing Hu ,  Xiangying Yang ,  Li Su

IPC: H04W72/04 ,  H04W76/28 ,  H04W52/02 ,  H04W84/04

Abstract: A downlink control information (DCI), such as a blanking DCI (bDCI) message may be transmitted by a base station (e.g., eNB) and received by a mobile device (e.g., UE). The bDCI may indicate that the eNB will not transmit a subsequent DCI to the UE for a duration of time. The UE may be in continuous reception mode or connected discontinuous reception (C-DRX) mode. The UE may therefore determine to enter a sleep state or take other action. The bDCI may specify an explicit blanking duration, or an index indicating a blanking duration from a lookup table, and/or the blanking duration (and/or a blanking duration offset value) may be determined in advance, e.g., semi-statically. When the UE is in C-DRX mode, the UE may be configured such that either the sleep/wake period of the C-DRX mode or the blanking period of the bDCI may take precedence over the other.

公开(公告)号：US10477475B2

公开(公告)日：2019-11-12

申请号：US15892859

申请日：2018-02-09

Applicant: Apple Inc.

Inventor： Yuchul Kim ,  Wei Zeng ,  Dawei Zhang

IPC: H04W52/02 ,  H04W72/04 ,  H04W4/08

Abstract: A wireless communication device (UE) may receive control indicator information (CII) indicating whether one or more candidate physical control channels (PCCs) are available to the UE for decoding. The UE may perform respective blind decoding if the CII indicates that the one or more candidate PCCs are available, to decode a respective PCC intended for the UE. The UE may receive the CII in the same slot in which PCCs are transmitted, or it may receive the CII in another slot, which may be a narrowband slot. The UE may receive the PCCs in the same slot in which corresponding physical data channels (PDCs) are transmitted, or it may receive the PCCs in another slot, e.g. a slot immediately preceding the slot in which the corresponding PDCs are transmitted. By eliminating unnecessary blind decoding and receiving the CII over narrowband, power consumption of the UE may be greatly reduced.

公开(公告)号：US20190313350A1

公开(公告)日：2019-10-10

申请号：US16373504

申请日：2019-04-02

Applicant: Apple Inc.

Inventor： Wei Zhang ,  Wei Zeng ,  Tianyan Pu ,  Haitong Sun ,  Jia Tang ,  Dawei Zhang ,  Sami M. Almalfouh ,  Zhu Ji ,  Johnson O. Sebeni

IPC: H04W56/00 ,  H04W72/12 ,  H04W16/14

Abstract: Apparatuses, systems, and methods for performing timing synchronization between a base station and a user equipment device within an unlicensed spectrum band. In some scenarios, beamforming tracking may also be performed. Upon determining that a transmission medium within the unlicensed spectrum band is available for transmission, a base station may transmit a plurality of synchronization signal blocks (SSBs), or a plurality of copies of one SSB, with associated remaining minimum system information (RMSI) blocks, within a single time instance within a SSB burst window. The SSBs may be transmitted at different frequency positions and according to distinct beamforming configurations. The SSBs and RMSI blocks may be configured such that a receiving user equipment device may determine the time-domain, and optionally the frequency-domain, position of the SSB and RMSI within the SSB burst window, to allow timing synchronization and optionally beamforming tracking.

公开(公告)号：US20190281652A1

公开(公告)日：2019-09-12

申请号：US16295517

申请日：2019-03-07

Applicant: Apple Inc.

Inventor： Wei Zhang ,  Yuchul Kim ,  Junsung Lim ,  Haitong Sun ,  Wei Zeng ,  Sami M. Almalfouh ,  Yang Li ,  Zhu Ji ,  Dawei Zhang ,  Johnson O. Sebeni

IPC: H04W76/28 ,  H04W72/04 ,  H04W76/25 ,  H04W24/10

Abstract: Apparatuses, systems, and methods for a base station to perform a method construct dynamic hierarchical sub-configurations of bandwidth parts (BWPs) for use in a connected mode discontinuous reception (CDRX) communication session with a user equipment (UE) device. The base station may configure a first BWP at a baseband frequency associated with the CDRX communication session as a default BWP, a second BWP with a wider bandwidth than the first BWP as a transmission BWP, and one or more third BWPs as resting BWPs. The transmission BWP and the one or more resting BWPs may be configured to periodically override the default BWP as the active BWP for a predetermined number of CDRX cycles. The transmission BWP may be utilized, when activated to perform data transmission by UE device, and the one or more resting BWPs may be utilized, when activated, for performing channel measurements.

公开(公告)号：US20180368153A1

公开(公告)日：2018-12-20

申请号：US15969653

申请日：2018-05-02

Applicant: Apple Inc.

Inventor： Yang Li ,  Wei Zeng ,  Zhu Ji ,  Beibei Wang ,  Jia Tang ,  Yuchul Kim ,  Haijing Hu ,  Dawei Zhang ,  Xiangying Yang ,  Sami M. Almalfouh ,  Johnson O. Sebeni ,  Wei Zhang ,  Tianyan Pu

IPC: H04W72/12

Abstract: Apparatuses, systems, and methods for a wireless device to perform simultaneous uplink activity for multiple RATs in the same carrier using frequency division multiplexing. The wireless device may establish a first wireless link with a first base station according to a first radio access technology (RAT) and a second wireless link with a second base station according to a second RAT. The first base station may provide a first cell operating in a first system bandwidth and the second base station may provide a second cell operating in a second system bandwidth. The wireless device may determine whether the wireless device has uplink activity scheduled according to both the first RAT and the second RAT. If so, the wireless device may perform uplink activity for both the first RAT and the second RAT in the first system bandwidth using frequency division multiplexing.

公开(公告)号：US20180310284A1

公开(公告)日：2018-10-25

申请号：US15957612

申请日：2018-04-19

Applicant: Apple Inc.

Inventor： Wei Zeng ,  Yuchul Kim ,  Dawei Zhang

IPC: H04W72/04 ,  H04L5/00 ,  H04W56/00 ,  H04W76/28

CPC classification number: H04W72/042 ,  H04L5/001 ,  H04L5/0048 ,  H04L5/005 ,  H04W48/16 ,  H04W56/001 ,  H04W76/28

Abstract: This disclosure relates to techniques for a base station (BS) to configure default and supplementary sync signals (SS) at sub-band bandwidths in a wireless communication system. The supplementary SS may be configured in response to a determination that the BS is in wireless communications with a UE using a single narrow band radio-frequency chain. The BS may configure the supplementary SS to be proximate in frequency to a PDCCH search space currently in use by the UE. The default SS may be configured to support initial access and may have a shorter periodicity, while the supplementary SS may be configured to not support initial access and may have a longer periodicity. The BS may additionally or alternatively configure a tracking reference signal (RS), wherein the tracking RS is configured on-demand based on a current network load of the BS. The tracking RS may be configured at a sub-band bandwidth, wherein the sub-band bandwidth is selected based on a bandwidth allocated to an active UE in wireless communication with the BS.

公开(公告)号：US20250167848A1

公开(公告)日：2025-05-22

申请号：US18836451

申请日：2022-02-11

Applicant: Apple Inc.

Inventor： Haitong Sun ,  Hong He ,  Dawei Zhang ,  Wei Zeng ,  Yushu Zhang ,  Chunxuan Ye ,  Weidong Yang

IPC: H04B7/06 ,  H04L5/00 ,  H04W72/232

Abstract: Systems and methods for transmitting and receiving user equipment (UE) capability information. A UE includes a transceiver and a processor. The processor is configured to receive, via the transceiver, a UE capability request. The processor is also configured to transmit, via the transceiver and in response to the UE capability request, UE capability information for 3rd Generation Partnership Project (3GPP) new radio (NR) Release 17 (Rel-17) enhanced channel state information (CSI) reporting for a single downlink control information (DCI) multiple transmission and reception point (Multi-TRP) non-coherent joint transmission (NCJT) scheme.

公开(公告)号：US20250158681A1

公开(公告)日：2025-05-15

申请号：US18838537

申请日：2022-03-25

Applicant: Apple Inc.

Inventor： Hong He ,  Yushu Zhang ,  Dawei Zhang ,  Wei Zeng ,  Haitong Sun ,  Chunxuan Ye ,  Weidong Yang ,  Seyed Ali Akbar Fakoorian ,  Jie Cui

IPC: H04B7/06 ,  H04W24/10

Abstract: This disclosure relates to techniques for performing channel state information reporting for enhanced reduced capability (eRedcap) wireless devices in a wireless communication system. A cellular network may configure reference signals for multiple bandwidth parts and may configure an eRedcap device to report measurements on active and deactivated bandwidth parts. An eRedcap device may perform measurements of reference signals on a deactivated bandwidth part and provide reporting to the network based on the configuration.

公开(公告)号：US20250150243A1

公开(公告)日：2025-05-08

申请号：US18834992

申请日：2022-03-01

Applicant: Apple Inc.

Inventor： Yushu Zhang ,  Oghenekome Oteri ,  Huaning Niu ,  Chunxuan Ye ,  Seyed Ali Akbar Fakoorian ,  Wei Zeng ,  Haitong Sun ,  Hong He ,  Dawei Zhang

IPC: H04L5/00 ,  H04B7/06

Abstract: Apparatuses, systems, and methods for Unified transmission configuration indicator (TCI) configuration and default beam for multi-beam indication, e.g., in 5G NR systems and beyond, including systems, methods, and mechanisms for supporting cross-cell TCI state list sharing and common TCI ID indication with regard to different multi-TRP operation in different serving cells as well as for determining which TCI to use to buffer data when a scheduling offset is below a threshold when multiple TCI states are indicated (e.g., which TCI state is a default TCI state).