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.

公开(公告)号：US12156185B2

公开(公告)日：2024-11-26

申请号：US17593363

申请日：2021-07-26

Applicant: APPLE INC.

Inventor： Huaning Niu ,  Dawei Zhang ,  Jie Cui ,  Manasa Raghavan ,  Qiming Li ,  Sharad Sambhwani ,  Xiang Chen ,  Yang Tang

IPC: H04W72/0446 ,  H04L5/14 ,  H04W72/11 ,  H04W72/231

Abstract: Systems and methods for implementing uplink (UL) gaps to facilitate user equipment (UE) calibration are disclosed herein. A UE determines one or more slot patterns of a slot configuration that is repeated during time division duplex (TDD) communication with a base station. The UE determines a UL gap periodicity (defining periods covering an integer number of repetitions of the slot configuration). The UE then performs UE calibration during one or more semi-persistently configured UL slots of a period of the UL gap periodicity that correspond to UL indication(s) in one or more of a common configuration, a dedicated configuration, and/or a slot format indication (SFI) downlink control information (DCI) for the slot pattern(s) of the slot configuration. Methods of identifying particular semi-persistently configured UL slots of a period to use for the UL gap are also discussed. UL slot indications from dynamic DCI are not used for UL gap purposes.

公开(公告)号：US11974235B2

公开(公告)日：2024-04-30

申请号：US17593400

申请日：2021-07-27

Applicant: APPLE INC.

Inventor： Huaning Niu ,  Dawei Zhang ,  Jie Cui ,  Laxminarayana Pillutla ,  Manasa Raghavan ,  Qiming Li ,  Sharad Sambhwani ,  Xiang Chen ,  Yang Tang

IPC: H04W52/36

CPC classification number: H04W52/365 ,  H04W52/367

Abstract: Activating an uplink (UL) gap at a base station may include decoding a user equipment (UE) UL gap capability report received from a UE. A radio resource control (RRC) UL gap configuration may be encoded for transmission to the UE. A power headroom report (PHR) medium access control (MAC) control element (CE) received from the UE may be decoded. The PHR MAC CE may include at least one of a P value or a power management maximum power reduction (P-MPR) value. Decoding the measurement information may include determining that the P value is equal to one or the P-MPR value is greater than zero. Based on determining that the P value is equal to one or the P-MPR value is greater than zero, the UL gap configuration may be implicitly activated.

公开(公告)号：US20240114424A1

公开(公告)日：2024-04-04

申请号：US18372039

申请日：2023-09-22

Applicant: Apple Inc.

Inventor： Parvathanathan Subrahmanya ,  Leilei Song ,  Mariam Motamed ,  Navid Ehsan ,  Sharad Sambhwani

IPC: H04W40/04

CPC classification number: H04W40/04

Abstract: Disclosed are methods, systems, and computer-readable medium to perform operations including obtaining first data regarding one or more applications running on a UE device, where the first data represents, for each of the one or more applications, an individual network usage characteristic of that application; determining, based on the first data, second data regarding the one or more applications, where the second data represents a composite network usage characteristic of the one or more applications; selecting, based on the second data, a first modem configuration from among a plurality of candidate modem configurations; and causing a modem of the UE device to operate according to the first modem configuration.

公开(公告)号：US20240097744A1

公开(公告)日：2024-03-21

申请号：US18464161

申请日：2023-09-08

Applicant: Apple Inc.

Inventor： Ankit Bhamri ,  Danila Zaev ,  Bertram R Gunzelmann ,  Sharad Sambhwani

IPC: H04B7/04 ,  H04B7/06

CPC classification number: H04B7/04013 ,  H04B7/0628 ,  H04B7/063

Abstract: A system may include an access point (AP), user equipment (UE), and a reconfigurable intelligent surface (RIS). The RIS may include an array of elements coupled to adjustable devices controlled to cause the array to reflect signals in different directions. The RIS may be controlled in a first mode in which the AP controls the adjustable devices, a second mode in which the UE controls the adjustable devices, and a third mode in which the RIS controls the adjustable devices. The RIS, AP, or UE may determine which mode to place the RIS in based on a downlink signal transmitted by the AP, an uplink signal transmitted by the UE, measurements of the signals performed on the RIS, a first distance or round trip time between the AP and the RIS, and/or a second distance or round trip time between the UE and the RIS.

公开(公告)号：US20240090052A1

公开(公告)日：2024-03-14

申请号：US18101947

申请日：2023-01-26

Applicant: Apple Inc.

Inventor： Ioannis Sarkas ,  Sharad Sambhwani

IPC: H04W76/15 ,  H04W72/0446 ,  H04W72/0453

CPC classification number: H04W76/15 ,  H04W72/0446 ,  H04W72/0453

Abstract: Systems and methods described herein may enable an electronic device to communicate using both a first communication system based on a first frequency spectrum (e.g., New Radio (NR)/Fifth Generation (5G) network frequencies) and a second communication system based on a second frequency spectrum (e.g., sub-terahertz (sub-THz) frequencies, Sixth Generation (6G) network frequencies)). The two communication systems may share some front-end processing circuitry, which may help with reducing complexity and footprints of sub-THz communication systems.

公开(公告)号：US20240032131A1

公开(公告)日：2024-01-25

申请号：US17593402

申请日：2021-07-27

Applicant: APPLE INC.

Inventor： Huaning Niu ,  Dawei Zhang ,  Jie Cui ,  Laxminarayana Pillutla ,  Manasa Raghavan ,  Qiming Li ,  Sharad Sambhwani ,  Xiang Chen ,  Yang Tang

IPC: H04W76/20 ,  H04W52/36 ,  H04W8/24

CPC classification number: H04W76/20 ,  H04W52/365 ,  H04W52/367 ,  H04W8/24

Abstract: Triggering an uplink (UL) gap at a base station may include decoding a user equipment (UE) UL gap capability report received from a UE. A radio resource control (RRC) UL gap configuration for transmission to the UE may be encoded. The RRC UL gap configuration may include configuration information associated with at least one of a periodicity, offset, or length. Measurement information received from the UE may be decoded. The measurement information may include at least one of a power headroom value, a PCMAX,f,c value, or a P value. Based on the power headroom value, the PCMAX,f,c value, or the P value, the UL gap configuration may be activated by encoding a medium access control (MAC) control element (MAC CE) for transmission to the UE.

公开(公告)号：US20240031933A1

公开(公告)日：2024-01-25

申请号：US17872957

申请日：2022-07-25

Applicant: Apple Inc.

Inventor： Anatoliy S Ioffe ,  Alexander Sayenko ,  Camila Priale Olivares ,  Brandy Jo F Sykes ,  Sharad Sambhwani

IPC: H04W52/02

CPC classification number: H04W52/0229 ,  H04W52/0235 ,  H04W52/028

Abstract: A wake-up signal (WUS) network (separate from a cellular network) includes WUS nodes that broadcast WUSs targeting WUS receivers of user equipment (UE). The WUSs may have low frequencies, such as within a television whitespace spectrum. When the cellular network determines that a UE should enter a power saving mode, or when a cellular receiver of the UE enters an idle state, the cellular network may request resources for the UE from a WUS node and activate a WUS receiver of the UE. When the cellular network has data to send to the UE or a threshold time has expired, the cellular network may request a WUS from the WUS network, which broadcasts the WUS that may be received by the UE. If the UE has data to transmit to the cellular network, the cellular network may request that the WUS node stop providing resources to the UE.

公开(公告)号：US20230413194A1

公开(公告)日：2023-12-21

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.

公开(公告)号：US20230370969A1

公开(公告)日：2023-11-16

申请号：US17826052

申请日：2022-05-26

Applicant: Apple Inc.

Inventor： Francesco Negro ,  Sharad Sambhwani

IPC: H04W52/02

CPC classification number: H04W52/0229

Abstract: The present application relates to devices and components including apparatus, systems, and methods for plural-tone, plural-frequency wake-up signaling.