公开(公告)号：US20220311499A1

公开(公告)日：2022-09-29

申请号：US17593562

申请日：2020-05-15

Applicant: APPLE INC.

Inventor： Yushu Zhang ,  Chunhai Yao ,  Chunxuan Ye ,  Dawei Zhang ,  Fangli Xu ,  Haijing Hu ,  Haitong Sun ,  Hong He ,  Wei Zeng ,  Weidong Yang ,  Yeong-Sun Hwang ,  Yuchul Kim ,  Yuqin Chen

IPC: H04B7/06 ,  H04B7/08 ,  H04L5/00

Abstract: Systems and methods for control signaling for beam searching latency reduction are disclosed herein. A g Node B (gNB) may determine that a first Synchronization Signal Block (SSB) and a second SSB are to be spatially correlated and may select a first transmit (Tx) beam to transmit the first SSB and a second Tx beam to transmit the second SSB accordingly. The gNB may also transmit a correlation message including spatial correlation information to help a UE determine the spatial correlation. The UE may measure the first SSB on a first subset of a plurality of receive (Rx) beams and measure the second. SSB on a second subset of the plurality of Rx beams, and select an Rx beam for one or both. In some embodiments, channel state information reference signals (CSI-RS) that are quasi co-located (QCLed) with a Oven SSB may be measured in place of the SSB.

公开(公告)号：US20220303729A1

公开(公告)日：2022-09-22

申请号：US17437821

申请日：2020-10-22

Applicant: Apple Inc.

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

IPC: H04W4/06

Abstract: This disclosure relates to techniques for providing broadcast and multicast services to wireless devices while in idle and Inactive modes a wireless communication system. A wireless device may establish a wireless link with a cellular base station of a cellular network. The wireless device may receive information indicating whether provision of a broadcast or multicast service in one or more of an inactive mode or an idle mode is supported by the cellular network. The wireless device may receive the broadcast or multicast service in one or more of the inactive mode or the idle mode based at least in part on the information indicating whether provision of the broadcast or multicast service in one or more of the inactive mode or the idle mode is supported by the cellular network.

公开(公告)号：US11451361B2

公开(公告)日：2022-09-20

申请号：US17023342

申请日：2020-09-16

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.

公开(公告)号：US20220279450A1

公开(公告)日：2022-09-01

申请号：US16977442

申请日：2019-09-29

Applicant: Apple Inc.

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

IPC: H04W52/08 ,  H04W52/14 ,  H04W52/36 ,  H04W52/24

Abstract: Embodiments are presented herein of apparatuses, systems, and methods for a user equipment device (UE) to perform power control for uplink (UL) reference signals (RS). A UE may determine spatial configuration for UL RS based on another communication. A UE may determine an updated pathloss within a reduced implementation following an update of downlink (DL) RS. A UE may reset a power control factor in response to receiving an update.

公开(公告)号：US11432220B2

公开(公告)日：2022-08-30

申请号：US16782414

申请日：2020-02-05

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: H04W76/10 ,  H04W76/27 ,  H04W36/00 ,  H04W36/30 ,  H04W68/00 ,  H04W72/04 ,  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：US20220191757A1

公开(公告)日：2022-06-16

申请号：US17688488

申请日：2022-03-07

Applicant: Apple Inc.

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

IPC: H04W36/10 ,  H04W36/00 ,  H04W36/08

Abstract: Apparatuses, systems, and methods for a wireless device avoiding reselection or handover to cells of different operators. The wireless device may attach to a first base station of a first network operator. The wireless device may determine that a neighboring base station is associated with a second network operator. Based on determining the neighboring base station is associated with the second network operator, the wireless device may exclude the third base station from handover or reselection.

公开(公告)号：US11356151B2

公开(公告)日：2022-06-07

申请号：US17267603

申请日：2020-02-12

Applicant: Apple Inc.

Inventor： Haitong Sun ,  Yushu Zhang ,  Wei Zeng ,  Dawei Zhang ,  Yuchul Kim ,  Hong He ,  Weidong Yang ,  Chunhai Yao ,  Chunxuan Ye ,  Oghenekome Oteri ,  Ismael Gutierrez Gonzalez ,  Ghaith N Hattab ,  Jie Cui ,  Yang Tang ,  Haijing Hu ,  Fangli Xu ,  Zhibin Wu ,  Yuqin Chen ,  Yeong-Sun Hwang

IPC: H04W92/18 ,  H04B7/0413 ,  H04L1/18 ,  H04L5/00 ,  H04W72/04

Abstract: Apparatuses, systems, and methods for multi-TRP by a UE, including out of order delivery of PDSCH, PUSCH, and/or DL ACK/NACK. The UE may receive, from a base station, a configuration that may include multiple control resource set (CORESET) poos and each CORESET pool may be associated with an index value. The UE may determine that at least two DCIs of the multiple DCIs end at a common symbol and determine, based on one or more predetermined rules, when the UE may be scheduled to receive PDSCHs, transmit PUSCHs, and/or transmit ACK/NACKs from CORESETs associated with the at least two DCIs.

公开(公告)号：US20220167430A1

公开(公告)日：2022-05-26

申请号：US17667351

申请日：2022-02-08

Applicant: Apple, Inc.

Inventor： Fangli Xu ,  Dawei Zhang ,  Haijing Hu ,  Yuqin Chen

IPC: H04W74/08 ,  H04W72/12

Abstract: This disclosure relates to performing bandwidth part activation in a cellular communication system. A wireless device may attach to a network via a cell that includes multiple bandwidth parts. The wireless device may receive an indication activating a non-default bandwidth part for the wireless device. A bandwidth part activation timer may be initiated based at least in part on activation of the non-default bandwidth part. At expiration of the bandwidth part activation timer, the wireless device may deactivate the non-default bandwidth part and activate a default bandwidth part if there is not a procedure to perform an uplink data transfer in progress. If there is a procedure to perform an uplink data transfer in progress at expiration of the bandwidth part activation timer, the procedure may be completed via the non-default BWP even after expiration of the bandwidth part activation timer.

公开(公告)号：US11337079B2

公开(公告)日：2022-05-17

申请号：US16557049

申请日：2019-08-30

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：US11329801B2

公开(公告)日：2022-05-10

申请号：US16733515

申请日：2020-01-03

Applicant: Apple Inc.

Inventor： Dawei Zhang ,  Fangli Xu ,  Haijing Hu ,  Huarui Liang ,  Lijia Zhang ,  Robert K. Kitchens ,  Samuel D. Post ,  Shu Guo ,  Xiangying Yang ,  Yannick L. Sierra ,  Yuqin Chen

IPC: H04L9/06 ,  H04L29/06 ,  H04W12/06 ,  H04W12/04 ,  H04L9/08

Abstract: Apparatuses, systems, and methods for generating and utilizing improved initialization vectors (IVs) when performing encryption and authentication in wireless communications. In some scenarios, a wireless communication device may generate one or more pseudorandom multi-bit values, e.g., using a respective plurality of key derivation functions (KDFs). A first portion of each value may be used as a respective key for encryption or authentication of traffic on the user plane or the control plane. A second portion of each value may be used as a nonce value in a respective IV for use with a respective key for encryption or authentication of traffic on the user plane or the control plane. In some scenarios, the nonce values may instead be generated as part of an additional pseudorandom value (e.g., by executing an additional KDF), from which all of the IVs may be drawn.