公开(公告)号：US20230144223A1

公开(公告)日：2023-05-11

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 ,  H04W76/20 ,  H04W76/30 ,  H04W12/043

CPC classification number: H04W12/041 ,  H04W76/20 ,  H04W76/30 ,  H04W12/043

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：US20230133947A1

公开(公告)日：2023-05-04

申请号：US17912744

申请日：2020-04-08

Applicant: Apple Inc.

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

IPC: H04W72/1273 ,  H04W72/512 ,  H04W72/232

Abstract: Embodiments are presented herein of apparatuses, systems, and methods for a user equipment device (UE) to perform URLLC scheme selection. The UE may connect to at least one base station. The UE may determine scheduling of a physical downlink control channel (PDCCH) and a physical downlink shared channel (PDSCH) are within a threshold duration. Based on the PDCCH and the PDSCH being scheduled within the threshold duration, select one or more transmission control indicator (TCI) states for receiving the PDSCH irrespective of TCI state(s) indicated in the PDCCH. The UE may receive the PDSCH using the selected one or more TCI states.

公开(公告)号：US20230118526A1

公开(公告)日：2023-04-20

申请号：US17790056

申请日：2021-09-06

Applicant: APPLE INC.

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

IPC: H04W72/50

Abstract: Methods, systems, and apparatuses for synchronizing data transmission activity by user equipment (UE). In one aspect, the method comprises determining, by the UE and based on current usage of resources, that alignment of subsequent usage of resources is to be adjusted, generating, by the UE, data that indicates a plurality of activity alignment parameters that are to be adjusted in order to cause the adjusted alignment of subsequent usage of resources, encoding, by the UE, the generated data for transmission to a base station, and transmitting, by the UE, the encoded data to the base station.

公开(公告)号：US20230058265A1

公开(公告)日：2023-02-23

申请号：US17598217

申请日：2020-05-14

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 ,  Yang Weidong ,  Yang Tang ,  Yuchul Kim ,  Yuqin Chen ,  Yushu Zhang

IPC: H04L5/00 ,  H04W72/04

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 the PDSCH and PDCCH channels, when transmitting the PUSCH and PUCCH channel, and when transmitting PUSCH Msg3 during random access. 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.

公开(公告)号：US11589228B2

公开(公告)日：2023-02-21

申请号：US17054148

申请日：2018-05-11

Applicant: Apple Inc.

Inventor： Xiangying Yang ,  Huarui Liang ,  Lijia Zhang ,  Shu Guo ,  Haijing Hu ,  Fangli Xu ,  Yuqin Chen ,  Dawei Zhang ,  Li Li

IPC: H04W12/122 ,  H04W12/069 ,  H04W12/72 ,  H04W12/0433 ,  H04W12/03 ,  H04W12/041 ,  H04L9/08 ,  H04L9/16 ,  H04L9/32 ,  H04W12/02

Abstract: Techniques to protect a subscriber identity, by encrypting a subscription permanent identifier (SUPI) to form one-time use subscription concealed identifiers (SUCIs) using a set of one-time ephemeral asymmetric keys, generated by a user equipment (UE), and network provided keys are disclosed. Encryption of the SUPI to form the SUCIs can mitigate snooping by rogue network entities, such as fake base stations. The UE is restricted from providing the unencrypted SUPI over an unauthenticated connection to a network entity. In some instances, the UE uses a trusted symmetric fallback encryption key KFB or trusted asymmetric fallback public key PKFB to verify messages from an unauthenticated network entity and/or to encrypt the SUPI to form a fallback SUCIFB for communication of messages with the unauthenticated network entity.

公开(公告)号：US20220418030A1

公开(公告)日：2022-12-29

申请号：US17776449

申请日：2020-01-31

Applicant: Apple Inc.

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

IPC: H04W76/19 ,  H04W76/30 ,  H04W12/106

Abstract: Embodiments are presented herein of apparatuses, systems, and methods for a user equipment device (UE) and/or cellular network to resume a connection. To resume the connection, the UE may transmit a fully protected connection resume message, e.g., which may include protection for a resume cause field.

公开(公告)号：US20220417820A1

公开(公告)日：2022-12-29

申请号：US17896443

申请日：2022-08-26

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 ,  Yuqin Chen

IPC: H04W36/30 ,  H04W76/10 ,  H04W76/27 ,  H04W68/00 ,  H04W72/04 ,  H04W36/00 ,  H04W36/08 ,  H04W4/40

Abstract: Apparatuses, systems, and methods for a user equipment device (UE) to perform methods for network assisted side-link resource configuration for unicast and/or multi-cast/groupcast communications in V2X networks. A UE may, after establishing an RRC connection with a base station, transmit, to the base station, V2X connection information. The V2X connection information may include a V2X identifier associated with the UE and a V2X identifier associated with a target UE. The UE may receive, from the base station, a side-link configuration for data transmission with the target UE. The side-link configuration may include a resource allocation defined in time and frequency (e.g., a transmit/receive pool). The UE may communicate with the target UE using the resource allocation included in the side-link configuration.

公开(公告)号：US20220408509A1

公开(公告)日：2022-12-22

申请号：US17891408

申请日：2022-08-19

Applicant: Apple Inc.

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

IPC: H04W76/27 ,  H04W76/30 ,  H04W76/19 ,  H04W76/18

Abstract: This disclosure relates to techniques for performing radio resource control procedures for remote wireless devices in a wireless communication system. A remote wireless device may transmit a radio resource control message that includes information configured to be relayed to a cellular base station to a relay wireless device, which may relay the information to the cellular base station. The cellular base station may also transmit a radio resource control message that includes information configured to be relayed to the remote wireless device to the relay wireless device, which may relay the information to the remote wireless device.

公开(公告)号：US20220394807A1

公开(公告)日：2022-12-08

申请号：US17891296

申请日：2022-08-19

Applicant: Apple Inc.

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

IPC: H04W76/27 ,  H04W76/30 ,  H04W76/19 ,  H04W76/18

Abstract: This disclosure relates to techniques for performing radio resource control procedures for remote wireless devices in a wireless communication system. A remote wireless device may transmit a radio resource control message that includes information configured to be relayed to a cellular base station to a relay wireless device, which may relay the information to the cellular base station. The cellular base station may also transmit a radio resource control message that includes information configured to be relayed to the remote wireless device to the relay wireless device, which may relay the information to the remote wireless device.

公开(公告)号：US20220393838A1

公开(公告)日：2022-12-08

申请号：US17885225

申请日：2022-08-10

Applicant: Apple Inc.

Inventor： Yushu Zhang ,  Yakun Sun ,  Fangli Xu ,  Yuqin Chen ,  Dawei Zhang ,  Haijing Hu ,  Chunhai Yao ,  Yuchul Kim ,  Hong He ,  Wei Zeng ,  Haitong Sun

IPC: H04L5/00 ,  H04B7/06 ,  H04W24/10

Abstract: A wireless user equipment (UE) may employ any of various mechanisms for reporting signal quality measurements to a wireless network. The UE may impose a time delay between measurement and reporting, based on a delay parameter K. The UE may average measurements obtained at different measurement instances. The UE may employ any of various schemes for prioritizing transmission of one type of report over another, when temporal collisions occur between different types of report. The UE may employ a differential report that includes a state for indicating that a beam is not workable. The UE may employ a beam index that includes a state for indicating an invalid beam. A base station may receive a signal quality report and determine workability of a beam, e.g., by triggering a report of channel state information.