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公开(公告)号：US11871346B2
公开(公告)日：2024-01-09
申请号：US16480784
申请日：2018-08-10
Applicant: Apple Inc.
Inventor： Wei Zeng , Dawei Zhang , Haitong Sun , Wei Zhang , Tianyan Pu , Yuchul Kim , Yuqin Chen , Farouk Belghoul , Haijing Hu , Fangli Xu , Sami M. Almalfouh
IPC: H04W52/02 , H04W72/0446 , H04W74/08 , H04W74/00
CPC classification number: H04W52/0229 , H04W72/0446 , H04W74/006 , H04W74/0816
Abstract: This disclosure relates to using a wake up signal in conjunction with cellular communication in unlicensed spectrum. A cellular base station may provide a wake up signal on an unlicensed frequency channel after successful completion of a listen-before-talk procedure. The wake up signal may include a preamble configured for coherent detection, and information indicating channel occupancy time for a cellular communication by the cellular base station and a cell identifier for the cellular base station. A wireless device may monitor the unlicensed frequency channel for a wake up signal, and may determine whether to monitor the unlicensed frequency channel for control channel signaling based on whether a wake up signal is received, and potentially also based on the contents of the wake up signal if a wake up signal is received.
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公开(公告)号：US11838975B2
公开(公告)日：2023-12-05
申请号：US17993215
申请日：2022-11-23
Applicant: Apple Inc.
Inventor： Wei Zeng , Haijing Hu , Yuchul Kim , Dawei Zhang , Xiangying Yang , Zhu Ji , Yang Li , Beibei Wang , Jia Tang , Sami M. Almalfouh , Johnson O. Sebeni , Wei Zhang , Tianyan Pu , Vijay Venkataraman , Christian W. Mucke
IPC: H04W76/15 , H04W72/12 , H04W72/04 , H04W88/10 , H04B7/26 , H04W72/21 , H04W72/0453 , H04W88/06 , H04W76/28
CPC classification number: H04W76/15 , H04B7/2643 , H04W72/0453 , H04W72/1215 , H04W72/21 , H04W88/10 , H04W76/28 , H04W88/06
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.
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公开(公告)号：US11765668B2
公开(公告)日：2023-09-19
申请号：US16579544
申请日：2019-09-23
Applicant: Apple Inc.
Inventor： Haitong Sun , Johnson O. Sebeni , Zhu Ji , Dawei Zhang , Wei Zhang , Yuchul Kim , Tianyan Pu , Pengkai Zhao , Wei Zeng , Jia Tang , Ping Wang , Wanping Zhang , Yang Li
IPC: H04B17/318 , H04B7/0404 , H04W52/02 , H04W52/00 , H04W52/04 , H04B7/06 , H04W52/36 , H04W52/14 , H04W52/52 , H04W72/044 , H04W72/21
CPC classification number: H04W52/367 , H04W52/146 , H04W52/52 , H04W72/0473 , H04W72/21
Abstract: Apparatuses, systems, and methods for providing maximum transmit power control when utilizing multiple radio access technologies. For example, a wireless communication device comprising two cellular radios may intend to transmit on the first radio, while concurrently transmitting on the second radio. To ensure compliance with a maximum transmit power limitation, the device may determine an allowed transmit power level of the first radio, representing a difference between the maximum transmit power limitation and the current transmit power level being transmitted by the second radio. The device may also determine a threshold power level for a communication by the first radio. If the allowed transmit power level meets the threshold power level, then the device may transmit the first communication having a power level between the threshold power level and the allowed transmit power level. Otherwise, the device may forego transmission of the first communication.
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公开(公告)号：US20230246673A1
公开(公告)日：2023-08-03
申请号：US18130450
申请日：2023-04-04
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
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.
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公开(公告)号：US11690134B2
公开(公告)日：2023-06-27
申请号：US17885316
申请日：2022-08-10
Applicant: Apple Inc.
Inventor： Yang Li , Li Su , Zhu Ji , Tianyan Pu
IPC: H04L12/00 , H04W88/04 , H04W4/70 , H04W76/11 , H04W8/00 , H04W56/00 , H04W72/02 , H04W72/0446 , H04W72/0453 , H04W88/02
CPC classification number: H04W88/04 , H04W4/70 , H04W8/005 , H04W56/001 , H04W72/02 , H04W72/0446 , H04W72/0453 , H04W76/11 , H04W88/023
Abstract: This disclosure relates to techniques for supporting message mapping via time and/or frequency indexing. For example, these techniques may be applied to device-to-device wireless communication. For example, device to device discovery may use message mapping via frequency indexing. A portion of the payload of a message, such as a discovery message, may be offloaded to a frequency and/or time index. A receiving device may determine the offloaded portion of the payload based on the frequency and/or time (e.g., subcarrier and/or slot) used to transmit the message.
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Patent Agency Ranking
公开(公告)号：US11616680B2
公开(公告)日：2023-03-28
申请号：US15931873
申请日：2020-05-14
Applicant: Apple Inc.
Inventor： Yang Li , Tianyan Pu , Li Su , Zhu Ji
Abstract: This disclosure relates to techniques for supporting narrowband device-to-device wireless communication, including possible techniques for providing synchronization sequences. A first wireless device may transmit a preamble of a device-to-device wireless communication with a second wireless device. The preamble may include a first synchronization sequence. The first synchronization sequence may include multiple repetitions of a basis sequence, multiplied by a cover code. The basis sequence may span multiple orthogonal frequency division multiplexing symbols.
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公开(公告)号：US20220312551A1
公开(公告)日：2022-09-29
申请号：US17842123
申请日：2022-06-16
Applicant: Apple Inc.
Inventor： Tianyan Pu , Haitong Sun , Wanping Zhang , Wei Zeng , Pengkai Zhao , Dawei Zhang , Wei Zhang , Ping Wang , Sami M. Almalfouh , Johnson O. Sebeni
Abstract: Apparatuses, systems, and methods for a wireless device to perform methods to implement mechanisms for performing a listen again after talk procedure to detect collisions over an access medium. The wireless device may determine a frequency and configuration of modified transmission frames for transmission over an access medium (licensed or unlicensed) and may further determine a timing of the modified transmission frames within a transmission occasion. The wireless device may detect, during a listening period of the modified transmission frame, a collision and may adjust, based, at least in part, on the detected collision, a remaining transmission schedule for the transmission schedule and/or LBT parameters.
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公开(公告)号：US11405980B2
公开(公告)日：2022-08-02
申请号：US16578528
申请日：2019-09-23
Applicant: Apple Inc.
Inventor： Tianyan Pu , Haitong Sun , Wanping Zhang , Wei Zeng , Pengkai Zhao , Dawei Zhang , Wei Zhang , Ping Wang , Sami M. Almalfouh , Johnson O. Sebeni
Abstract: Apparatuses, systems, and methods for a wireless device to perform methods to implement mechanisms for performing a listen again after talk procedure to detect collisions over an access medium. The wireless device may determine a frequency and configuration of modified transmission frames for transmission over an access medium (licensed or unlicensed) and may further determine a timing of the modified transmission frames within a transmission occasion. The wireless device may detect, during a listening period of the modified transmission frame, a collision and may adjust, based, at least in part, on the detected collision, a remaining transmission schedule for the transmission schedule and/or LBT parameters.
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公开(公告)号：US11350265B2
公开(公告)日：2022-05-31
申请号：US16903529
申请日：2020-06-17
Applicant: Apple Inc.
Inventor： Tianyan Pu , Li Su , Zhu Ji , Yang Li
Abstract: This disclosure relates to techniques for performing presence discovery in a wireless communication. A wireless device may monitor a wireless medium for discovery signals. A candidate discovery signal may be detected. A frequency offset estimation consistency check may be performed on the candidate discovery signal. A peak to sidelobe ratio check may be performed on the candidate discovery signal. The wireless device may determine whether the candidate discovery signal is a false positive based at least in part on the frequency offset estimation consistency check and the peak to sidelobe ratio check.
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公开(公告)号：US11343709B2
公开(公告)日：2022-05-24
申请号：US16245485
申请日：2019-01-11
Applicant: Apple Inc.
Inventor： Wei Zhang , Tianyan Pu , Haitong Sun , Wei Zeng , Dawei Zhang , Sami M. Almalfouh , Johnson O. Sebeni
IPC: H04W28/02 , H04B17/318 , H04W8/24 , H04W16/14 , H04W24/08 , H04W24/10 , H04W80/02 , H04W84/12 , H04W88/06 , H04W72/12
Abstract: Apparatuses, systems, and methods for a wireless device and base station using a first radio access technology to monitor traffic load on a second radio access technology. A wireless device may monitor traffic of the second radio access technology and may transmit one or more traffic load reports to the base station. The base station may, based on the report(s) and its own observations, determine whether a hidden network of the second radio access technology is present at the wireless device.
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