公开(公告)号：US11570588B2

公开(公告)日：2023-01-31

申请号：US16949498

申请日：2020-10-30

Applicant: Apple Inc.

Inventor： Utkarsh Kumar ,  Srinivasan Nimmala ,  Vijay Venkataraman ,  Yifan Zhu ,  Lakshmi N. Kavuri ,  Krisztian Kiss

IPC: H04W4/14 ,  H04L65/1016 ,  H04L65/1073 ,  H04W8/04 ,  H04W8/22 ,  H04W28/04 ,  H04L65/1104 ,  H04W88/18

Abstract: A user equipment (UE) indicates to a network the types of SMS messages that the UE does not support. The network receives an indication from the UE corresponding to one or more types of short message service (SMS) messages that are supported by the UE, receives a SMS that is intended to be delivered to the UE, determines whether to forward the SMS message to the UE based on the indication received from the UE, when the SMS message is a type of SMS message supported by the UE, forwards the SMS message to the UE and, when the SMS message is not a type of SMS message supported by the UE, discards the SMS message.

公开(公告)号：US11546968B2

公开(公告)日：2023-01-03

申请号：US16968846

申请日：2019-08-15

Applicant: Apple Inc.

Inventor： Wei Zhang ,  Fangli Xu ,  Haitong Sun ,  Sriram Subramanian ,  Vishwanth Kamala Govindaraju ,  Johnson O. Sebeni ,  Dawei Zhang ,  Hong He ,  Yuchul Kim ,  Haijing Hu ,  Yuqin Chen ,  Wei Zeng ,  Sanjeevi Balasubramanian ,  Sandeep K. Sunkesala ,  Tarakkumar G. Dhanani ,  Madhukar K. Shanbhag ,  Shiva Krishna Narra ,  Longda Xing ,  Srinivasan Nimmala ,  Sree Ram Kodali ,  Murtaza A. Shikari ,  Sethuraman Gurumoorthy ,  Srirang A. Lovlekar ,  Xu Ou

IPC: H04W4/00 ,  H04W88/10 ,  H04W88/02 ,  H04W76/15 ,  H04W24/08 ,  H04W72/04 ,  H04W76/27

Abstract: A user equipment (UE) device may reside in a state of dual connectivity with a master cell group (MCG) and a secondary cell group (SCG), wherein the radio access technologies of the MCG and the SCG are different. While in the dual connectivity state, the UE device may transition to a mode of reduced activity (e.g., processing and/or RF activity) relative to the secondary cell group (SCG) in order to save power, e.g., when traffic flow via the SCG is below a threshold, or when scheduling activity on the SCG is low. Various mechanisms may be employed to reduce activity, e.g., mechanisms such as reduction of beam monitoring, deactivation of secondary cells of the SCG, reduction of number of active antenna elements, employment of longer periods for periodic measurement and reporting processes, etc.

公开(公告)号：US20220322289A1

公开(公告)日：2022-10-06

申请号：US17438498

申请日：2020-10-22

Applicant: Apple Inc.

Inventor： Fangli Xu ,  Chunhai Yao ,  Dawei Zhang ,  Haijing Hu ,  Murtaza A. Shikari ,  Naveen Kumar R. Palle Venkata ,  Ralf Rossbach ,  Sarma V. Vangala ,  Sethuraman Gurumoorthy ,  Srinivasan Nimmala ,  Srirang A. Lovlekar ,  Sudeep Manithara Vamanan ,  Wei Zeng ,  Yuqin Chen ,  Zhibin Wu

IPC: H04W72/00

Abstract: Apparatuses, systems, and methods for enhancement of MBMS transmission reliability. A UE may receive PDCP PDUs via a PTM link from a network. The UE may determine to provide feedback regarding receipt of the PDCP PDUs, e.g., based, at least in part, on an occurrence of a triggering event. The triggering event may be configured by the network and may include the UE receiving a request for feedback from the network, the UE determining that at least one PDCP PDU is missing, the UE determining that a number of missing PDCP PDUs exceeds a threshold, and/or the UE determining that a PDCP reordering window is changing based on expiration of a PDCP reordering timer. The UE may transmit feedback associated with receipt of the PDCP PDUs. The feedback may include an indication of missing PDCP PDUs, e.g., such as an indication of a sequence number associated with missing PDCP PDUs.

公开(公告)号：US20220312460A1

公开(公告)日：2022-09-29

申请号：US17437382

申请日：2020-08-06

Applicant: Apple Inc.

Inventor： Sarma V. Vangala ,  Tarik Tabet ,  Chunxuan Ye ,  Dawei Zhang ,  Fangli Xu ,  Haijing Hu ,  Murtaza A. Shikari ,  Naveen Kumar R. Palle Venkata ,  Ralf Rossbach ,  Sreevalsan Vallath ,  Srinivasan Nimmala ,  Wei Zeng

IPC: H04W72/12 ,  H04W72/14 ,  H04W76/19

Abstract: This disclosure relates to techniques for reducing latency in a high-propagation-delay wireless communication system. A base station (BS) may receive from a user equipment (UE) a first buffer status report (BSR) indicating an amount of uplink data buffered by the UE for transmission to the BS, and may subsequently receive a first BSR update message indicating that an additional amount of uplink data has been buffered by the UE subsequent to transmission of the first BSR. The first BSR update message may be received prior to expiration of a timer authorizing transmission of a second BSR following the first BSR. In response, the BS may allocate resources for transmission to the UE, based on the first BSR and the first BSR update message. The BS may provide an uplink grant identifying the allocated resources.

公开(公告)号：US20220304062A1

公开(公告)日：2022-09-22

申请号：US17437808

申请日：2020-08-05

Applicant: Apple Inc.

Inventor： Sarma V. Vangala ,  Tarik Tabet ,  Chunxuan Ye ,  Dawei Zhang ,  Fangli Xu ,  Haijing Hu ,  Murtaza A Shikari ,  Naveen Kumar R Palle Venkata ,  Rafael L Rivera-Barreto ,  Ralf Rossbach ,  Sreevalsan Vallath ,  Srinivasan Nimmala ,  Wei Zeng ,  Yuqin Chen ,  Zhibin Wu

IPC: H04W74/08 ,  H04W74/00 ,  H04W24/08

Abstract: A base station may operate in a context where the propagation delay between the base station and user equipment (UE) devices is large. The base station configures UE devices with a common delay. The base station receives a random access preamble from a UE device. The base station determines a time slot in which the random access preamble was transmitted, based on a configured correspondence between allowable time slots and subsets of an available set of preambles. The base station computes a Random Access Radio Network Temporary Identifier (RA-RNTI) based on parameter values including an index, of the determined time slot. The base station employs the computed RA-RNTI to address a random access response for the UE device.

公开(公告)号：US20220303730A1

公开(公告)日：2022-09-22

申请号：US17437826

申请日：2020-10-22

Applicant: Apple Inc.

Inventor： Fangli Xu ,  Naveen Kumar R. Palle Venkata ,  Haijing Hu ,  Dawei Zhang ,  Murtaza A. Shikari ,  Srirang A. Lovlekar ,  Srinivasan Nimmala ,  Sarma V. Vangala ,  Yuqin Chen ,  Zhibin Wu ,  Ralf Rossbach

IPC: H04W4/06 ,  H04W76/10 ,  H04L1/16

Abstract: This disclosure relates to techniques for supporting switching between point to point and point to multipoint delivery with service continuity for broadcast and multicast services in a wireless communication system. A cellular base station and a wireless device may establish a wireless link. The cellular base station may provide information configuring an over the air delivery type with which to receive a broadcast or multicast service, which may be received by the wireless device. The cellular base station may transmit the service using the configured delivery type, and the wireless device may correspondingly receive the service. The cellular base station may provide information configuring the wireless device to switch to a different over the air delivery type, with service continuity. The cellular base station may then transmit the service using that delivery type, and the wireless device may correspondingly receive the service.

公开(公告)号：US20220279353A1

公开(公告)日：2022-09-01

申请号：US17749448

申请日：2022-05-20

Applicant: Apple Inc.

Inventor： Gahima S. Mbonye ,  Eduardo de Almeida Abrantes ,  Krishna Myneni ,  Lakshmi N. Kavuri ,  Murtaza A. Shikari ,  Raj S. Chaugule ,  Sanjeevi Balasubramanian ,  Shiva Krishna Narra ,  Srinivasan Nimmala ,  Sriram Subramanian ,  Vikram B. Yerrabommanahalli

IPC: H04W12/126 ,  H04W12/06 ,  H04W76/18 ,  G08B13/22 ,  H04W4/029 ,  H04W12/48 ,  H04W12/71

Abstract: Methods and devices for a user equipment (UE) device to utilize an electronic subscriber identity module (eSIM) to provide backup cellular connectivity for essential services and security enhancements. A UE device receives user input to alter an operational state of the UE. The user input may include removing a physical subscriber identity module (SIM) card installed in the UE or attempting to power off the UE. In response to receiving the user input, an authorization process is initiated. In response to determining that the authorization process has failed, a security enhancement is implemented for the UE.

公开(公告)号：US20220256484A1

公开(公告)日：2022-08-11

申请号：US17438443

申请日：2021-01-12

Applicant: Apple Inc.

Inventor： Fangli Xu ,  Ralf Rossbach ,  Dawei Zhang ,  Haijing Hu ,  Sarma V. Vangala ,  Murtaza A. Shikari ,  Srinivasan Nimmala

IPC: H04W56/00 ,  H04W76/10 ,  H04W76/30

Abstract: This disclosure relates to techniques for handling timing alignment for configured grant based small data transmissions in inactive mode in a wireless communication system. A wireless device may establish a radio resource control connection with a cellular base station. The wireless device may receive an indication to release the radio resource control connection. The indication to release the radio resource control connection may configure resources for performing uplink transmissions while in the radio resource control inactive mode. A timing advance may be maintained while in the radio resource control inactive mode. An uplink transmission may be performed using resources configured for performing uplink transmissions while in the radio resource control inactive mode. The uplink transmission may be performed using the timing advance.

公开(公告)号：US20220256353A1

公开(公告)日：2022-08-11

申请号：US17732279

申请日：2022-04-28

Applicant: Apple Inc.

Inventor： Fangli Xu ,  Dawei Zhang ,  Haijing Hu ,  Longda Xing ,  Murtaza A. Shikari ,  Sethuraman Gurumoorthy ,  Sree Ram Kodali ,  Srinivasan Nimmala ,  Srirang A. Lovlekar ,  Xu Ou ,  Yuqin Chen

IPC: H04W16/14 ,  H04L5/00 ,  H04W8/24 ,  H04W76/30 ,  H04W88/06 ,  H04W76/11

Abstract: Apparatuses, systems, and methods for a wireless device to perform methods to implement mechanisms for non-stand-alone unlicensed band cells that support single carrier capable UEs. A UE may camp on a licensed band cell of a RAN and transmit a request to connect. The UE may receive, from the licensed band cell, a connection setup message indicating a switch to an unlicensed band cell of the RAN and receive, from the unlicensed band cell, a reference signal. The UE may transmit to the unlicensed band cell and in response to confirming, based at least in part of the reference signal, radio quality and/or downlink timing of the unlicensed band cell, a connection complete/connection resume message.

公开(公告)号：US11357067B2

公开(公告)日：2022-06-07

申请号：US17086175

申请日：2020-10-30

Applicant: Apple Inc.

Inventor： Srinivasan Nimmala ,  Kavya B. Ravikumar ,  Krisztian Kiss ,  Lakshmi N. Kavuri ,  Utkarsh Kumar ,  Vijay Venkataraman ,  Yifan Zhu ,  Alosious Pradeep Prabhakar ,  Mohammed Sadique

IPC: H04W60/00 ,  H04W72/12 ,  H04W76/15 ,  H04W76/12 ,  H04W76/11 ,  H04W76/27 ,  H04W4/24 ,  H04W8/24 ,  H04W68/00 ,  H04W88/06

Abstract: Apparatus and methods to support parallel access to services of multiple subscriber identity modules (SIMs) and/or electronic SIMs (eSIMs) by a wireless device are disclosed. The wireless device is a single-radio wireless device that includes wireless circuitry that supports an active voice or video connection via a single radio access network of a cellular wireless network at a time. To send or receive data for a second SIM/eSIM, when an active voice or video connection for a first SIM/eSIM uses the wireless circuitry, the single-radio wireless device can i) establish parallel, linked protocol data unit (PDU) sessions for different SIMs, ii) multiplex traffic for different SIMs over a common radio connection with SIM information embedded in protocol headers for routing by network equipment, and/or iii) use an additional dedicated bearer using a first, active SIM for each data network name (DNN) over which to route for a second, suspended SIM.