公开(公告)号：US11611879B2

公开(公告)日：2023-03-21

申请号：US16660974

申请日：2019-10-23

Applicant: Apple Inc.

Inventor： Muthukumaran Dhanapal ,  Li Su ,  Vijay Venkataraman

IPC: H04W74/08 ,  H04W12/08 ,  H04W76/10 ,  H04W28/02 ,  H04L49/90 ,  H04W12/106

Abstract: Apparatuses, systems, and methods for a wireless device to perform methods for improvements to security checks in a fifth generation (5G) New Radio (NR) network, including mechanisms to avoid redundant access stratum (AS) security checks. The wireless device may determine that an on-demand system information block (SIB) request is pending transmission and may buffer the on-demand SIB in response to determining that a connection establishment procedure will be initiated within a specified time period. The wireless device may then perform a unified security procedure for the on-demand SIB request and the connection establishment procedure, including confirming connection security. Further, in response to confirming connection security, the wireless device may use an on-demand SIB received from the network without confirming a corresponding on-demand SIB signature.

公开(公告)号：US20220394110A1

公开(公告)日：2022-12-08

申请号：US17888331

申请日：2022-08-15

Applicant: Apple Inc.

Inventor： Yingjie Zhao ,  Jianxiong Shi ,  Lele Cui ,  Li Su ,  Faraz Faheem

IPC: H04L69/04 ,  H04L69/14 ,  H04L69/16 ,  H04L69/22 ,  H04W28/06 ,  H04W80/06 ,  H04W88/02

Abstract: Systems, methods, and mechanisms for performing ROHC header compression on TCP packets with MPTCP option enabled. A compressor may determine that a first portion of the stream of data packets is formatted according to the transmission control protocol (TCP) with a multipath TCP (MPTCP) option enabled. The compressor may establish context with a corresponding decompressor and may operate in one of three modes of compression based on the context. In some embodiments, when the context indicates that the corresponding decompressor supports decompression of TCP data packets with MPTCP option enabled, the compressor may operate in a first or second mode of compression. In some embodiments, when the context indicates that the corresponding decompressor does not support decompression of TCP data packets with MPTCP option enabled, the compressor may operation in a third mode of compression.

公开(公告)号：US20220377756A1

公开(公告)日：2022-11-24

申请号：US17442252

申请日：2020-02-12

Applicant: Apple Inc.

Inventor： Haitong Sun ,  Li Su ,  Yushu Zhang ,  Dawei Zhang ,  Wei Zeng

IPC: H04W72/12 ,  H04W24/08 ,  H04W76/28 ,  H04W52/24

Abstract: Techniques discussed herein can facilitate one or more enhancements to beam management for a User Equipment (UE) operating in a Discontinuous Reception (DRX) mode. A first set of techniques relates to enhancements to transmission of Scheduling Request(s) (SR(s)) by UEs operating in DRX mode. A second set of techniques relates to enhancements to beam failure detection and recovery by UEs operating in DRX mode. A third set of techniques relates to enhancements to beam measurement and reporting by UEs operating in DRX mode. Various embodiments can employ one or more techniques of the first set of techniques, the second set of techniques, and/or the third set of techniques.

公开(公告)号：US11510276B2

公开(公告)日：2022-11-22

申请号：US16918610

申请日：2020-07-01

Applicant: Apple Inc.

Inventor： Li Su

IPC: H04W76/28 ,  H04W72/04 ,  H04L1/16 ,  H04B7/06 ,  H04W72/12 ,  H04L27/26

Abstract: A user equipment (UE) establishes a connected discontinuous reception cycle including one or more onDurations with a currently camped base station. When the one or more onDurations is scheduled, the UE utilizes an active mode of processing and when the one or more onDurations are not scheduled the UE utilizes a sleep mode of inactivity. The UE receives an indication of a plurality of reference signals that are to be transmitted during a first onDuration, each reference signal is (i) to be included in a transmitter beam and (ii) associated with an uplink resource, receives a plurality of reference signals, each reference signal being associated with one of the transmitter beams, selects one of the plurality of transmitter beams based on measuring the included reference signal and transmits an indication of the selected one of the plurality of transmitter beams on the uplink resource associated with the included reference signal.

公开(公告)号：US11284437B2

公开(公告)日：2022-03-22

申请号：US16225163

申请日：2018-12-19

Applicant: Apple Inc.

Inventor： Li Su ,  Sethuraman Gurumoorthy ,  Muthukumaran Dhanapal

IPC: H04W74/08 ,  H04W56/00

Abstract: A device (e.g. a wireless communication device) may determine, according to a set of guidelines, a list that includes system information to be requested by the device as part of a system information request procedure. The device may determine whether to combine the system information request with an additional request associated with a random access procedure (RACH). In response to determining that the requests are to be combined, the device may initiate a unified RACH that combines the system information request and the additional request. The decision to combine the requests may be based on the type of the additional request, whether the list has been completed by the time the additional request is to be issued, and/or additional factors associated with wireless communications of the device. The system information request may be an OnDemand system information block request, and the RACH may be contention-based or contention-free.

公开(公告)号：US11277817B2

公开(公告)日：2022-03-15

申请号：US16711758

申请日：2019-12-12

Applicant: Apple Inc.

Inventor： Li Su ,  Sami M. Almalfouh ,  Jianxiong Shi

IPC: H04W68/02 ,  H04W76/27 ,  H04W68/00 ,  H04W88/02 ,  H04W88/08 ,  H04W24/08 ,  H04W16/30 ,  H04W68/04

Abstract: This disclosure relates to techniques for efficient idle mode wakeup for wireless devices supporting an enhanced coverage mode and a normal coverage mode in a wireless communication system. A wireless device may camp on a cellular base station in idle mode. The wireless device may monitor a control channel associated with the normal coverage mode during a paging occasion. The wireless device may also monitor a control channel associated with the enhanced coverage mode during the paging occasion if a paging indication is not successfully decoded on the control channel associated with the normal coverage mode.

公开(公告)号：US20210410030A1

公开(公告)日：2021-12-30

申请号：US16915893

申请日：2020-06-29

Applicant: APPLE INC.

Inventor： Vijay Venkataraman ,  Muthukumaran Dhanapal ,  Li Su ,  Sharad Garg ,  Syed A. Rahim ,  Sandeep K. Sunkesala ,  Jia Tang ,  Vijay Gadde ,  Tarakkumar G. Dhanani ,  Muhammad Saad

IPC: H04W36/08 ,  H04W76/11 ,  H04W76/27 ,  H04W74/08 ,  H04W76/19 ,  H04W72/04 ,  H04W52/24 ,  H04B17/318

Abstract: Disclosed are embodiments for reducing likelihood of selecting a cell identified by a Radio Access Network (RAN) Notification Area ID (RNA ID) that is different from that identifying a last or current serving cell so as to avoid an RNA update procedure; reducing Random Access Channel (RACH) transmissions for an RNA update procedure and a mobile originated (MO) data transmission in response to a Radio Resource Control (RRC) triggered RNA update procedure; and selecting a band or beam in a multi-band/beam cellular system that improves RACH efficiency.

公开(公告)号：US11212790B2

公开(公告)日：2021-12-28

申请号：US16834908

申请日：2020-03-30

Applicant: Apple Inc.

Inventor： Johnson O. Sebeni ,  Yang Li ,  Zhu Ji ,  Yuchul Kim ,  Wei Zeng ,  Dawei Zhang ,  Haijing Hu ,  Xiangying Yang ,  Li Su

IPC: H04W72/04 ,  H04W76/28 ,  H04W52/02 ,  H04W84/04

Abstract: A downlink control information (DCI), such as a blanking DCI (bDCI) message may be transmitted by a base station (e.g., eNB) and received by a mobile device (e.g., UE). The bDCI may indicate that the eNB will not transmit a subsequent DCI to the UE for a duration of time. The UE may be in continuous reception mode or connected discontinuous reception (C-DRX) mode. The UE may therefore determine to enter a sleep state or take other action. The bDCI may specify an explicit blanking duration, or an index indicating a blanking duration from a lookup table, and/or the blanking duration (and/or a blanking duration offset value) may be determined in advance, e.g., semi-statically. When the UE is in C-DRX mode, the UE may be configured such that either the sleep/wake period of the C-DRX mode or the blanking period of the bDCI may take precedence over the other.

公开(公告)号：US11076325B2

公开(公告)日：2021-07-27

申请号：US16822071

申请日：2020-03-18

Applicant: Apple Inc.

Inventor： Li Su ,  Vijay Venkataraman ,  Muthukumaran Dhanapal

IPC: H04W4/00 ,  H04W36/00 ,  H04W24/10 ,  H04W84/04

Abstract: Embodiments are presented herein of apparatuses, systems, and methods for a user equipment device (UE) to selectively perform neighbor base station measurement. The UE may receive a neighbor base station list from the serving base station. The UE may categorize the neighbor base stations of the neighbor base station list into one of a plurality of measurement categories. The UE may be configured to perform measurements of neighbor base stations in respective categories at different rates.

公开(公告)号：US10896138B2

公开(公告)日：2021-01-19

申请号：US15472420

申请日：2017-03-29

Applicant: Apple Inc.

Inventor： Li Su ,  Longda Xing

IPC: G06F13/00 ,  G06F1/3225 ,  G06F1/3234 ,  G11C11/4072

Abstract: A wireless communication device (UE) may include random access memory and associated software configured to selectively place different memory banks into either an active power on mode, retention mode, or power off mode. The selective placement of memory banks into different modes may be performed based on a variety of factors including software module voting information, a current power mode of the memory banks, one or more software program(s) and/or data currently stored on the memory banks, and a counter that counts an amount of time during which a memory bank is not accessed. The placement of memory banks into different modes may be controlled by a memory controller coupled to the memory banks.