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公开(公告)号:US20230010533A1
公开(公告)日:2023-01-12
申请号:US17517468
申请日:2021-11-02
Applicant: Apple Inc.
Inventor: Sharad Sambhwani , Dirk Nickisch , Madhukar Krishnamoorthi Shanbhag , Sanjeevi Balasubramanian , Shiva Krishna Narra , Sriram Subramanian , Vishwanth Kamala Govindaraju
IPC: H04W72/04
Abstract: This disclosure provide various techniques for decreasing the time it takes user equipment to tune away from a compromised network connection. By more quickly detecting a signal characteristic issue (e.g., signal quality issue) in the compromised signal and performing mitigation actions, the user equipment may decrease power consumption and increase data throughput. The signal quality issue may be detected by monitoring the location of the user equipment, a channel impulse response of the user equipment, and/or a block error rate (BLER) of a signal, among other methods. The data obtained may be fed into confidence validation logic, which may determine a level of confidence that the signal quality issue may cause a weak or broken connection between the user equipment and a network. The confidence validation logic may, based on the determination, operate the user equipment in an active state, a suspend state, or a release state.
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公开(公告)号:US20230007713A1
公开(公告)日:2023-01-05
申请号:US17363707
申请日:2021-06-30
Applicant: Apple Inc.
Inventor: Sharad Sambhwani , Dirk Nickisch , Madhukar K. Shanbhag , Sanjeevi Balasubramanian , Shiva Krishna Narra , Sriram Subramanian , Vishwanth Kamala Govindaraju
Abstract: Some aspects of this disclosure relate to apparatuses and methods for communicating in a first radio access technology (RAT) and a second RAT. A user equipment (UE) can receive, from a first base station using the first RAT, first configuration information for the UE to communicate with a second base station via the second RAT; and receive, from the first base station using the first RAT, a downlink message to enable a communication link between the UE and the second base station via the second RAT. The downlink message includes second configuration information for the UE to communicate with the second base station via the second RAT. The UE can establish the communication link between the UE and the second base station using the second RAT based on a link configuration obtained from the first configuration information and the second configuration information.
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公开(公告)号:US20240397501A1
公开(公告)日:2024-11-28
申请号:US18792079
申请日:2024-08-01
Applicant: Apple Inc.
Inventor: Sharad Sambhwani , Dirk Nickisch , Madhukar Krishnamoorthi Shanbhag , Sanjeevi Balasubramanian , Shiva Krishna Narra , Sriram Subramanian , Vishwanth Kamala Govindaraju
IPC: H04W72/0453
Abstract: This disclosure provides various techniques for decreasing the time it takes user equipment to tune away from a compromised network connection. By more quickly detecting a signal characteristic issue (e.g., signal quality issue) in the compromised signal and performing mitigation actions, the user equipment may decrease power consumption and increase data throughput. The signal quality issue may be detected by monitoring the location of the user equipment, a channel impulse response of the user equipment, and/or a block error rate (BLER) of a signal, among other methods. The data obtained may be fed into confidence validation logic, which may determine a level of confidence that the signal quality issue may cause a weak or broken connection between the user equipment and a network. The confidence validation logic may, based on the determination, operate the user equipment in an active state, a suspend state, or a release state.
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公开(公告)号:US12096382B2
公开(公告)日:2024-09-17
申请号:US18459301
申请日:2023-08-31
Applicant: Apple Inc.
Inventor: Sharad Sambhwani , Digvijay A. Jadhav , Dirk Nickisch , Gil Katzir , Laxminarayana Pillutla
IPC: H04W52/36
CPC classification number: H04W52/367
Abstract: An electronic device may include a radio that generates a first maximum power based on a radio-frequency exposure (RFE) budget. The radio may transmit signals subject to the first maximum power during a subperiod of an averaging period and may generate an instantaneous RFE metric value based on an antenna coefficient and the conducted transmit power of the antenna during the subperiod. The radio may generate a consumed RFE value by averaging the instantaneous RFE metric value with previous instantaneous RFE values from the averaging period, may generate a remaining budget based on the consumed RFE value, may generate a second maximum transmit power based on the remaining budget, and may transmit signals during a subsequent subperiod subject to the second maximum power. Time-averaging the RFE metric may serve to optimize performance of the radio relative to scenarios where the radio performs time-averaging of conducted TX power.
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公开(公告)号:US20230412202A1
公开(公告)日:2023-12-21
申请号:US17841573
申请日:2022-06-15
Applicant: Apple Inc.
Inventor: Sharad Sambhwani , Apurva Pande , Dirk Nickisch , Pallavi Suresh Mastiholimath , Prashanthan Pathamadai Krishnan , Sairamm Prabakar , Sanjeevi Balasubramanian , Sriram Krishnan
IPC: H04B1/10
CPC classification number: H04B1/1027
Abstract: Embodiments herein provide various apparatuses and techniques to for enhanced handling of receiver desensitization, “desense,” in electronic devices that is caused by an operation of the device. In an embodiment, sensitivity of a receiver affected by desense may be determined based on receiver sensitivity without desense and a desense offset value. Desense mitigation measures may be applied based on the strength of the signal received by the receiver being less than the receiver sensitivity affected by desense. The desense mitigation measures may include deactivating the device operation that causes desense, enabling the device operation that causes desense only during certain times, and enabling antenna diversity. In some embodiments, various power and signal-to-noise ratio thresholds may be used for conditional application of different desense mitigation measures. For example, to enable receiver diversity on the device, strength of the signal needs to be below one power threshold and above another power threshold.
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公开(公告)号:US11792747B2
公开(公告)日:2023-10-17
申请号:US17866322
申请日:2022-07-15
Applicant: Apple Inc.
Inventor: Sharad Sambhwani , Digvijay A. Jadhav , Dirk Nickisch , Gil Katzir , Laxminarayana Pillutla
IPC: H04W52/36
CPC classification number: H04W52/367
Abstract: An electronic device may include a radio that generates a first maximum power based on a radio-frequency exposure (RFE) budget. The radio may transmit signals subject to the first maximum power during a subperiod of an averaging period and may generate an instantaneous RFE metric value based on an antenna coefficient and the conducted transmit power of the antenna during the subperiod. The radio may generate a consumed RFE value by averaging the instantaneous RFE metric value with previous instantaneous RFE values from the averaging period, may generate a remaining budget based on the consumed RFE value, may generate a second maximum transmit power based on the remaining budget, and may transmit signals during a subsequent subperiod subject to the second maximum power. Time-averaging the RFE metric may serve to optimize performance of the radio relative to scenarios where the radio performs time-averaging of conducted TX power.
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公开(公告)号:US20230142210A1
公开(公告)日:2023-05-11
申请号:US17950849
申请日:2022-09-22
Applicant: Apple Inc.
Inventor: Parvathanathan Subrahmanya , Sharad Sambhwani , Dirk Nickisch , Madhukar K Shanbhag , Rohit U Nabar , Sanjeevi Balasubramanian , Shiva Krishna Narra , Sriram Subramanian , Tarik Tabet , Vishwanth Kamala Govindaraju , Yakun Sun
CPC classification number: H04W48/12 , H04L5/0048
Abstract: User equipment in close proximity may transfer data and control information. For example, the user equipment may exchange data or data sets between each other. Each user equipment can receive and transmit data using radio access technologies. A group of user equipments may include active user equipment and passive user equipment. Active user equipment connects with one or more base stations and transfers data on a wireless communication network via the base station. The active user equipment may communicate with other active user equipment and passive user equipment. Passive user equipment may not connect to any base station and/or the wireless communication network and may communicate with other passive user equipment and active user equipment (e.g., via a sidelink, peer-to-peer, or device-to-device channel).
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公开(公告)号:US20230132977A1
公开(公告)日:2023-05-04
申请号:US17747525
申请日:2022-05-18
Applicant: Apple Inc.
Inventor: Sharad Sambhwani , Huaning Niu , Xiang Chen , Yang Tang , Laxminarayana Pillutla , Dirk Nickisch
IPC: H04B1/3827 , H04W52/38
Abstract: A first transmission power level based on a radio frequency exposure limit and a second transmission power level based on the first transmission power level and a probability of detection of a body by a body proximity sensor are determined, where it is ensured that an average usage of the first and second transmission power levels over time does not exceed the transmission power limit, determined based on radio frequency exposure limits. A transmission power gain is determined based on a difference between the first and second transmission power level based on the probability of detection, and a false alarm rate of the body by the body proximity sensor. The transmission power gain may be used as a performance indicator to select from multiple first and second transmission power gains. First and second transmission power gains corresponding to the selected transmission power gain may be stored and applied during transmission.
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公开(公告)号:US20230030498A1
公开(公告)日:2023-02-02
申请号:US17377229
申请日:2021-07-15
Applicant: APPLE INC.
Inventor: Dirk Nickisch , Sharad Sambhwani
Abstract: Performing autonomous measurements at a user equipment (UE) may include encoding a radio resource control (RRC) connection request for transmission to a first base station having a first base station type. An RRC connection setup communication received from the first base station may be decoded. Measurements associated with a set of candidate carriers of a second base station type may be autonomously performed while in an RRC connected state. Autonomously performing the measurements may including deriving the set of candidate carriers to be measured. Results from the performed measurements may be stored.
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公开(公告)号:US20220408378A1
公开(公告)日:2022-12-22
申请号:US17866322
申请日:2022-07-15
Applicant: Apple Inc.
Inventor: Sharad Sambhwani , Digvijay A. Jadhav , Dirk Nickisch , Gil Katzir , Laxminarayana Pillutla
IPC: H04W52/36
Abstract: An electronic device may include a radio that generates a first maximum power based on a radio-frequency exposure (RFE) budget. The radio may transmit signals subject to the first maximum power during a subperiod of an averaging period and may generate an instantaneous RFE metric value based on an antenna coefficient and the conducted transmit power of the antenna during the subperiod. The radio may generate a consumed RFE value by averaging the instantaneous RFE metric value with previous instantaneous RFE values from the averaging period, may generate a remaining budget based on the consumed RFE value, may generate a second maximum transmit power based on the remaining budget, and may transmit signals during a subsequent subperiod subject to the second maximum power. Time-averaging the RFE metric may serve to optimize performance of the radio relative to scenarios where the radio performs time-averaging of conducted TX power.
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