公开(公告)号：US12262352B2

公开(公告)日：2025-03-25

申请号：US17764481

申请日：2019-09-29

Applicant: Apple Inc.

Inventor： Zhibin Wu ,  Dawei Zhang ,  Fangli Xu ,  Haijing Hu ,  Murtaza A. Shikari ,  Clive E. Rodgers ,  Sethuraman Gurumoorthy ,  Sree Ram Kodali ,  Srinivasan Nimmala ,  Srirang A. Lovlekar ,  Vijay Venkataraman ,  Longda Xing ,  Yuqin Chen

IPC: H04W72/02 ,  H04W36/00 ,  H04W72/0446 ,  H04W72/0453 ,  H04W92/18

Abstract: Embodiments are presented herein of apparatuses, systems, and methods for a C-V2X capable wireless device configured to operate according to a first sidelink mode where communication resources are allocated by a network and a second sidelink mode where communication resources are autonomously allocated by the wireless device. The wireless device detects a change in a coverage scenario associated with the first sidelink mode; performs resource sensing for the second sidelink mode; and based at least in part on detecting the change in the coverage scenario, transmits first communications using the second sidelink mode, wherein resources for transmitting the first communications are allocated based at least in part on the resource sensing.

公开(公告)号：US12238633B2

公开(公告)日：2025-02-25

申请号：US17755700

申请日：2019-11-28

Applicant: Apple Inc.

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

IPC: H04W40/24 ,  H04W24/08 ,  H04W88/04

Abstract: A relay user equipment (UE) configured to operate as a relay between a remote UE and a network component performs a method. The method includes determining at least one relay capability of the relay UE and performing a relay access control operation that indicates to the remote UE whether the remote UE is permitted to use the relay UE as the relay.

公开(公告)号：US12238514B2

公开(公告)日：2025-02-25

申请号：US17593676

申请日：2020-07-31

Applicant: Apple Inc.

Inventor： Fangli Xu ,  Shu Guo ,  Yuqin Chen ,  Haijing Hu ,  Huarui Liang ,  Dawei Zhang

IPC: H04W12/041 ,  H04W12/043 ,  H04W76/20 ,  H04W76/30

Abstract: An example technique for security key derivation in a wireless system includes: sending a radio resource control (RRC) suspend message from a first node, to a first user device, the RRC suspend message including a first next hop (NH) chaining counter (NCC) value; releasing access stratum (AS) resources associated with the first user device; deriving a first node key based on the first NCC value; receiving a first uplink message from the first user device without allocating AS resources to the first user device; and unscrambling the first uplink message based on the first NCC value.

公开(公告)号：US20250056363A1

公开(公告)日：2025-02-13

申请号：US18933658

申请日：2024-10-31

Applicant: APPLE INC.

Inventor： Naveen Kumar R Palle Venkata ,  Dawei Zhang ,  Fangli Xu ,  Haijing Hu ,  Ralf Rossbach ,  Sarma V. Vangala ,  Sethuraman Gurumoorthy ,  Yuqin Chen ,  Zhibin Wu

IPC: H04W36/32 ,  H04W36/00 ,  H04W36/08 ,  H04W68/02 ,  H04W76/20

Abstract: Provided is a method for a user equipment (UE). The method includes determining a mobility state of the UE and performing reference signal measurement in a relaxation mode within at least one cell. The mobility state indicates mobility capability of the UE, and, the at least one cell is determined based on the mobility state.

公开(公告)号：US12213116B2

公开(公告)日：2025-01-28

申请号：US17593467

申请日：2020-08-06

Applicant: Apple Inc.

Inventor： Fangli Xu ,  Dawei Zhang ,  Haijing Hu ,  Naveen Kumar R. Palle Venkata ,  Sarma V. Vangala ,  Yuqin Chen ,  Zhibin Wu

IPC: H04W72/0453 ,  H04W72/23 ,  H04W74/00

Abstract: A user equipment (UE) may operate on a dormant bandwidth part (BWP) and a non-dormant BWP of a carrier. The UE identifies a dormant bandwidth part (BWP) and a non-dormant BWP of a carrier corresponding to a primary secondary cell (PSCell) of a secondary cell group (SCG) for dual connectivity (DC), receives an indication that an active BWP is to be switched from the non-dormant BWP to the dormant BWP and performs an action corresponding to the dormant BWP.

公开(公告)号：US12200556B2

公开(公告)日：2025-01-14

申请号：US17440897

申请日：2020-10-23

Applicant: Apple Inc.

Inventor： Fangli Xu ,  Sarma V. Vangala ,  Chunxuan Ye ,  Haijing Hu ,  Krisztian Kiss ,  Murtaza A. Shikari ,  Naveen Kumar R. Palle Venkata ,  Ralf Rossbach ,  Sree Ram V. Kodali ,  Srinivasan Nimmala ,  Vijay Venkataraman ,  Yuqin Chen ,  Zhibin Wu

IPC: H04W36/08 ,  H04W36/00

Abstract: A user equipment (UE), next generation NodeB (gNB), or other network component can operate to configure a group configuration message that initiates a plurality of UEs in a coverage area of a non-terrestrial network (NTN) to concurrently transfer communication from a first beam of a first satellite to a second beam of a second satellite. The communications of one or more UEs can be re-directed to the second beam of the second satellite based on downlink control information of the group configuration message.

公开(公告)号：US20250008399A1

公开(公告)日：2025-01-02

申请号：US18263880

申请日：2022-08-08

Applicant: Apple Inc.

Inventor： Fangli Xu ,  Naveen Kumar R. Palle Venkata ,  Yuqin Chen ,  Dawei Zhang ,  Haijing Hu ,  Ralf Rossbach ,  Peng Cheng ,  Ping-Heng Kuo

IPC: H04W36/08 ,  H04W36/00

Abstract: Provided is a method for a user equipment (UE). The UE obtains a cell reselection indication from a network device. The cell reselection indication indicates to the UE whether a terrestrial network (TN) cell or a non-terrestrial network (NTN) cell serves as a camping cell for which the UE performs cell reselection; The UE performs the cell reselection based on the cell reselection indication.

公开(公告)号：US12185400B2

公开(公告)日：2024-12-31

申请号：US17593527

申请日：2020-10-29

Applicant: APPLE INC.

Inventor： Shu Guo ,  Dawei Zhang ,  Fangli Xu ,  Haijing Hu ,  Huarui Liang ,  Yuqin Chen

IPC: H04W76/15 ,  H04W12/033 ,  H04W12/106

Abstract: Systems and methods provide packet data convergence protocol (PDCP) user plane (UP) integrity protection (IP) for a user equipments (UE) and radio access network (RAN) nodes operating in Evolved Universal Terrestrial Radio Access-New Radio dual connectivity (EN-DC). In an attach procedure, a UE may indicate a UE security capability for support of relay node (RN) PDCP UP IP used in LTE. Based on the LIE security capability, a master e Node B (MeNB) security capability, and a secondary g Node B (SgNB) security capability, the MeNB may determine whether to use UP IP between the UE and the MeNB, the UE and the SgNB, and/or in a split bearer between the MeNB and the SgNB.

公开(公告)号：US12156255B2

公开(公告)日：2024-11-26

申请号：US17437819

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 ,  H04W56/00 ,  H04W74/0833

Abstract: A user equipment (UE) device may perform random access to a base station in the context where propagation delay between the base station and the UE device is large. The UE device randomly selects a random access preamble from an available set of preambles. The UE device selects a time slot for transmission of the random access preamble based on a configured correspondence between allowable time slots and subsets of the available set. The UE device transmits the random access preamble to a base station in the selected time slot, with timing advance to compensate for a common delay. Thus, the base station, knowing the configured correspondence, is able to determine the time slot in which the random access preamble was transmitted. The UE device receives a random access response that has been addressed with a Random Access Radio Network Temporary Identifier (RA-RNTI).

公开(公告)号：US12155595B2

公开(公告)日：2024-11-26

申请号：US17958016

申请日：2022-09-30

Applicant: Apple Inc.

Inventor： Chunhai Yao ,  Chunxuan Ye ,  Dawei Zhang ,  Fangli Xu ,  Haijing Hu ,  Haitong Sun ,  Hong He ,  Jie Cui ,  Oghenekome Oteri ,  Shu Guo ,  Wei Zeng ,  Weidong Yang ,  Yang Tang ,  Yuchul Kim ,  Yuqin Chen ,  Yushu Zhang

IPC: H04L5/00 ,  H04W72/0453 ,  H04W72/23

Abstract: Methods to enhance the coverage of NR systems for coverage-limited wireless devices are disclosed. A serving base station may configure a coverage-limited UE with parameters for the UE to operate in a coverage enhancement mode through RRC signaling, DCI, or RAR grant. The UE may use the configuration parameters to determine whether to enter into the coverage enhancement mode when connecting and communicating with the serving base station. The configuration parameters may configure the UE to exploit both time diversity and frequency diversity to extend and enhance coverage when receiving PDSCH and PDCCH channels. The UE may use the configuration parameters to receive PDSCH and PCCCH that are coverage enhanced using time repetitions and frequency hopping. Advantageously, the base station may flexibly and dynamically configure the UE with coverage enhancement parameters to extend the coverage of the UE using time diversity and frequency diversity gains as the UE moves around.