公开(公告)号：US12096411B2

公开(公告)日：2024-09-17

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: H04W72/0453

CPC classification number: H04W72/0453

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.

公开(公告)号：US12082029B2

公开(公告)日：2024-09-03

申请号：US17442683

申请日：2020-08-06

Applicant: Apple Inc.

Inventor： Fangli Xu ,  Dawei Zhang ,  Dirk Nickisch ,  Haijing Hu ,  Sarma V. Vangala ,  Sethuraman Gurumoorthy ,  Sharad Sambhwani ,  Srirang A. Lovlekar ,  Yuqin Chen ,  Zhibin Wu

IPC: H04W24/10 ,  H04W72/20 ,  H04W76/20

CPC classification number: H04W24/10 ,  H04W72/20 ,  H04W76/20

Abstract: Techniques discussed herein facilitate Base Station (BS) enhancements to measurement by a RRC Connected mode User Equipment (UE) for configuration of Carrier Aggregation (CA) and/or Dual Connectivity (DC). One example embodiment comprises a BS device comprising a processor configured to perform operations comprising: receiving a UE Assistance Information message comprising a measurement request; transmitting a first RRCReconfiguration message comprising a measConfig IE; receiving a MeasurementReport message from a UE that indicates one or more measurements on one or more sets of frequencies, wherein the one or more sets of frequencies comprise a set of serving frequencies for one of a serving cell or the neighboring cell and a set of non-serving frequencies for the UE, wherein the set of non-serving frequencies are associated with the neighboring cell; and transmitting a second RRCReconfiguration message that configures the UE with at least one set of the one or more sets of frequencies.

公开(公告)号：US20230412203A1

公开(公告)日：2023-12-21

申请号：US17841576

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.

公开(公告)号：US20230247452A1

公开(公告)日：2023-08-03

申请号：US18065848

申请日：2022-12-14

Applicant: APPLE INC.

Inventor： Sriram Subramanian ,  Dirk Nickisch ,  Madhukar K. Shanbhag ,  Sanjeevi Balasubramanian ,  Sharad Sambhwani ,  Shiva Krishna Narra ,  Vishwanth Kamala Govindaraju

IPC: H04W24/08 ,  H04B17/318 ,  H04B17/336

CPC classification number: H04W24/08 ,  H04B17/318 ,  H04B17/336

Abstract: Systems and methods are provided for a user equipment (UE) connected to a network using FR1 and configured for mmWave beam measurement to communicate using FR2. The UE receives, from a base station, measurement configuration information including an indication of measurement opportunities. The UE determines that a current data traffic type is associated with mmWave communication. In response to the current data traffic type being associated with the mmWave communication, the UE performs an FR2 cell addition measurement decision. The FR2 cell addition measurement decision may be based on one or more of signal quality feedback, sensor input, UE motion state, and geographic (geo) location information associated with FR2 cell information. Based on the FR2 cell addition measurement decision, the UE suppresses or selects a next measurement opportunity of the measurement opportunities for measuring one or more mmWave signals.

公开(公告)号：US20230146169A1

公开(公告)日：2023-05-11

申请号：US17950838

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

IPC: H04W76/10 ,  H04W56/00

CPC classification number: H04W76/10 ,  H04W56/001

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).

公开(公告)号：US20230009163A1

公开(公告)日：2023-01-12

申请号：US17790933

申请日：2021-05-17

Applicant: Apple Inc.

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

IPC: H04B1/3827 ,  H04W72/12

Abstract: A wireless network may include a base station and user equipment (UE). The UE may transmit uplink (UL) signals to the base station using a dynamically adjustable maximum UL duty cycle. When the UE identifies that a user is in proximity to the UE, the UE may transmit an indicator to the base station. The indicator may identify that a radio-frequency exposure (RFE) event has occurred and/or a suggested maximum UL duty cycle that would allow the UE to satisfy limits on RFE. The base station may limit a UL grant to the UE so that the UE performs subsequent communications using the suggested maximum UL duty cycle or a different maximum UL duty cycle. Coordinating adjustment of UL duty cycle in this way may allow the UE to meet limits on RFE without requiring the UE to perform maximum transmit power level reductions.

公开(公告)号：US11438023B1

公开(公告)日：2022-09-06

申请号：US17318927

申请日：2021-05-12

Applicant: Apple Inc.

Inventor： Sharad Sambhwani ,  Digvijay A. Jadhav ,  Dirk Nickisch ,  Gil Katzir ,  Laxminarayana Pillutla

IPC: H04B1/3827 ,  H04W24/08

Abstract: An electronic device may include a first set of radios subject to a specific absorption rate (SAR) limit and a second set of radios subject to a maximum permissible exposure (MPE) limit over an averaging period. Control circuitry may dynamically adjust radio-frequency (RF) exposure metric budgets provided to the radios over the averaging period, based on feedback reports from the radios identifying the amount of SAR and MPE consumed by the radios during different subperiods of the averaging period. The control circuitry may distribute and adjust SAR budgets and MPE budgets across the radios based on the feedback reports, distribution policies, radio statuses, transmit activity factors, and/or usage ratios associated with the radios. This may provide efficient utilization of the total available SAR and MPE budget, thereby leading to increased uplink coverage and throughput relative to scenarios where the SAR and MPE budgets remain static.