公开(公告)号：US20210204342A1

公开(公告)日：2021-07-01

申请号：US17201604

申请日：2021-03-15

Applicant: Apple Inc.

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

IPC: H04W76/15 ,  H04W72/12 ,  H04B7/26 ,  H04W72/04 ,  H04W88/10

Abstract: Apparatuses, systems, and methods for a wireless device to perform substantially concurrent communications with a next generation network node and a legacy network node. The wireless device may be configured to stablish a first wireless link with a first cell according to a RAT, where the first cell operates in a first system bandwidth and establish a second wireless link with a second cell according to a RAT, where the second cell operates in a second system bandwidth. Further, the wireless device may be configured to perform uplink activity for both the first RAT and the second RAT by TDM uplink data for the first RAT and uplink data for the second RAT if uplink activity is scheduled according to both the first RAT and the second RAT.

公开(公告)号：US20210160964A1

公开(公告)日：2021-05-27

申请号：US17021136

申请日：2020-09-15

Applicant: Apple Inc.

Inventor： Haitong Sun ,  Dawei Zhang ,  Hong He ,  Jia Tang ,  Pengkai Zhao ,  Tianyan Pu ,  Wei Zeng ,  Wei Zhang ,  Yuchul Kim ,  Yushu Zhang

IPC: H04W88/06 ,  H04W76/27 ,  H04L5/00 ,  H04W56/00 ,  H04B7/06 ,  H04W52/24 ,  H04W80/02 ,  H04W76/11 ,  H04W72/04 ,  H04L25/02

Abstract: Apparatuses, systems, and methods for a user equipment device (UE) to perform methods for Fifth Generation New Radio (5G NR) frequency range two (FR2) based communications beam management. The UE may configure, via communications with a base station, serving the UE, a group ID for PUCCH resources within a group of PUCCHs, e.g., for FR2 based communications. The UE may receive, from the base station, an update to one or more PUCCH resources within the group of PUCCHs via a medium access control (MAC) control element (CE) that may include one of a resource ID indicating an update to a PUCCH resource or the group ID to update the group of PUCCH resources. The UE may update, based on the MAC-CE, the one or more PUCCH resources within the group of PUCCHs.

公开(公告)号：US11012139B2

公开(公告)日：2021-05-18

申请号：US16587242

申请日：2019-09-30

Applicant: Apple Inc.

Inventor： Jia Tang ,  Zhu Ji ,  Yang Li ,  Johnson O. Sebeni ,  Yu-Lin Wang ,  Sulabh Khandelwal ,  Beibei Wang ,  Zheng Zhang

IPC: H04B7/08 ,  H04L5/00 ,  H04W76/28 ,  H04B17/318 ,  H04B17/382 ,  H04W52/24

Abstract: Adaptive multiplexing and transmit/receive diversity. A wireless device may include multiple antennas. A first set of antennas may be used for communication. One or more trigger conditions may be determined, and additional antennas may be activated for measurement. Based on the measurement(s), a second set of antennas may be selected and used for communication.

公开(公告)号：US10791474B2

公开(公告)日：2020-09-29

申请号：US16124651

申请日：2018-09-07

Applicant: Apple Inc.

Inventor： Beibei Wang ,  Zhu Ji ,  Johnson O. Sebeni ,  Jia Tang ,  Yang Li

IPC: H04W4/00 ,  H04W24/10 ,  H04L5/00 ,  H04W72/08 ,  H04W72/04 ,  H04W48/16

Abstract: This disclosure relates to techniques for detecting a signal and powering off at least some receiver components if no signal is detected. A wireless device may take one or more measurements of one or more signals. The wireless device may determine, based on the measurements, whether a signal (e.g., a signal of a licensed assisted access cell) is anticipated during an upcoming time period, e.g., a subframe or portion of a subframe. If no signal is anticipated, the wireless device may power off at least some receiver functions.

公开(公告)号：US20200220665A1

公开(公告)日：2020-07-09

申请号：US16735049

申请日：2020-01-06

Applicant: Apple Inc.

Inventor： Haitong Sun ,  Wei Zhang ,  Tianyan Pu ,  Dawei Zhang ,  Wei Zeng ,  Yuchul Kim ,  Yu Zhang ,  Wanping Zhang ,  Jia Tang ,  Yang Li

IPC: H04L1/18 ,  H04L5/00 ,  H04W72/04 ,  H04W72/12 ,  H04B7/0452

Abstract: Apparatuses, systems, and methods for performing uplink and downlink communication in cell edge scenarios with improved reliability. A wireless device may establish a radio resource control connection with a first cell. The wireless device may determine that a second cell strongly interferes with communication with the first cell. The wireless device may provide an indication that the second cell is a strongly interfering cell to the first cell. The first cell may coordinate with the second cell to transmit data to the wireless device, and to receive data from the wireless device, based at least in part on the indication that the second cell is a strongly interfering cell.

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：US20190373554A1

公开(公告)日：2019-12-05

申请号：US15992774

申请日：2018-05-30

Applicant: APPLE INC.

Inventor： Beibei Wang ,  Johnson O. Sebeni ,  Zhu Ji ,  Jia Tang ,  Xiantao Sun ,  Yu-Lin Wang ,  Yang Li ,  Wei Zhang ,  Tianyan Pu

IPC: H04W52/02 ,  H04W72/12 ,  H04W72/14 ,  H04W76/28

Abstract: A device and method for power saving between a scheduling request and a grant. A user equipment (UE) establishes a connection to a network, the UE and the network may be configured with a Connected Discontinuous Reception (C-DRX) functionality, the C-DRX functionality including a cycle with at least one onDuration. The UE transmits, during a first subframe a scheduling request (SR) to the network, the SR corresponds to data that is to be transmitted by the UE. The UE determines a second subframe for the UE to enter an active mode of processing for a reception of a grant, the second subframe is subsequent to the first subframe and prior to a next onDuration. The UE initiates an active mode of processing for the reception of the grant during the second subframe.

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：US20190306793A1

公开(公告)日：2019-10-03

申请号：US16442730

申请日：2019-06-17

Applicant: Apple Inc.

Inventor： Tianyan Pu ,  Sai Sravan Bharadwaj Karri ,  Wei Zhang ,  Swaminathan Balakrishnan ,  Xiantao Sun ,  Beibei Wang ,  Manish G. Vemulapalli ,  Jia Tang ,  Sami M. Almalfouh ,  Zhu Ji ,  Sachin J. Sane

IPC: H04W52/02 ,  H04B7/0456

Abstract: This disclosure relates to techniques for opportunistically depowering receiver chains of a wireless device. Based on control information, a device may determine whether the current number of active receiver chains can be reduced while maintaining a target achievable code rate for a period of data reception associated with the control information. Additionally, the device may generate and use a lookup table to determine whether to depower receiver chains, and which receiver chains to depower.

公开(公告)号：US10419193B2

公开(公告)日：2019-09-17

申请号：US15812291

申请日：2017-11-14

Applicant: APPLE INC.

Inventor： Junsung Lim ,  Zhu Ji ,  Jia Tang ,  Johnson O. Sebeni

IPC: H04L5/00 ,  H04L1/18 ,  H04W72/04

Abstract: A method performed by a user equipment that includes receiving a redundancy version (RV) of control information during a transmission time interval (TTI) from a network to which the user equipment has established a connection, wherein the control information comprises a plurality of RVs, determining a first value corresponding to the TTI, determining a second value based on a connectivity parameter measurement of the connection and determining whether to perform a decode operation on the RV based on a comparison of the first value and the second value.