公开(公告)号：US20240106610A1

公开(公告)日：2024-03-28

申请号：US18469819

申请日：2023-09-19

Applicant: Apple Inc.

Inventor： Han Pu ,  Lijie Zhang ,  Lele Cui ,  Kai Zhang

IPC: H04L5/00

CPC classification number: H04L5/0053

Abstract: The techniques provide solutions for a user equipment (UE) and base station to switch between T1R4 and 2T4R for sounding reference signals (SRS). The UE and base station may communicate SRS using 2T4R. The UE and/or base station may detect and evaluate a signal quality trigger and/or condition relating to switching from T2R4 to T1R4. The trigger and/or condition may correspond to a channel or radio frequency (RF) quality, conflicting or problematic band combinations used in a non-standalone (NSA) scenario, whether dedicated data subscription (DDS) subscriber identity module (SIM) or non-DDS SIM is being used in a dual SIM dual active (DSDA) scenario, etc. The UE and base station may either continue using T2R4 communications or switch to T1R4 communications based on the trigger and/or evaluation.

公开(公告)号：US20240032002A1

公开(公告)日：2024-01-25

申请号：US18349085

申请日：2023-07-07

Applicant: Apple Inc.

Inventor： Xiaolong Tu ,  Kai Zhang ,  Lele Cui ,  Lijie Zhang

IPC: H04W72/0446 ,  H04W72/56

CPC classification number: H04W72/0446 ,  H04W72/56

Abstract: Provided is a method for a user equipment (UE). The UE obtains a slot allocation information from a network device. The slot allocation information indicates a first slot and a second slot. The first slot is configured to communicate voice traffic and the second slot is configured to communicate traffic other than voice. The UE communicates the voice traffic in the first slot and the traffic other than voice in the second slot.

公开(公告)号：US11197346B2

公开(公告)日：2021-12-07

申请号：US16915737

申请日：2020-06-29

Applicant: Apple Inc.

Inventor： Srirang A. Lovlekar ,  Sethuraman Gurumoorthy ,  Murtaza A. Shikari ,  Srinivasan Nimmala ,  Sree Ram Kodali ,  Fangli Xu ,  Haijing Hu ,  Yuqin Chen ,  Dawei Zhang ,  Longda Xing ,  Zhiwei Wang ,  Yaoqi Yan ,  Muthukumaran Dhanapal ,  Beibei Wang ,  Lele Cui

IPC: H04W48/18 ,  H04W88/06 ,  H04W88/04 ,  H04W8/18 ,  H04W76/27 ,  H04W4/60 ,  H04W76/38 ,  H04W68/00 ,  H04W76/19

Abstract: Devices and associated methods for operating a dual-subscriber identity module (SIM) dual-standby (DSDS) user equipment device (UE) configured with a first SIM and a second SIM. The UE performs communications with a first cellular network using the first SIM and a first radio resource control (RRC) connection, and receives a request to perform a higher priority communication using the second SIM. In response to the request to perform the higher priority communication, the UE transmits a request to the first network to suspend the first RRC connection. After transmission of the request to suspend the first RRC connection, the UE receives a message from the first network to place the first RRC connection in an inactive state, and initiates a timer, wherein the timer is used to determine whether the first RRC connection remains in the inactive state or transitions to an idle state.

公开(公告)号：US20210014934A1

公开(公告)日：2021-01-14

申请号：US16915737

申请日：2020-06-29

Applicant: Apple Inc.

Inventor： Srirang A. Lovlekar ,  Sethuraman Gurumoorthy ,  Murtaza A. Shikari ,  Srinivasan Nimmala ,  Sree Ram Kodali ,  Fangli Xu ,  Haijing Hu ,  Yuqin Chen ,  Dawei Zhang ,  Longda Xing ,  Zhiwei Wang ,  Yaoqi Yan ,  Muthukumaran Dhanapal ,  Beibei Wang ,  Lele Cui

IPC: H04W88/04 ,  H04W8/18 ,  H04W76/27 ,  H04W76/19 ,  H04W76/38 ,  H04W68/00 ,  H04W4/60

Abstract: Devices and associated methods for operating a dual-subscriber identity module (SIM) dual-standby (DSDS) user equipment device (UE) configured with a first SIM and a second SIM. The UE performs communications with a first cellular network using the first SIM and a first radio resource control (RRC) connection, and receives a request to perform a higher priority communication using the second SIM. In response to the request to perform the higher priority communication, the UE transmits a request to the first network to suspend the first RRC connection. After transmission of the request to suspend the first RRC connection, the UE receives a message from the first network to place the first RRC connection in an inactive state, and initiates a timer, wherein the timer is used to determine whether the first RRC connection remains in the inactive state or transitions to an idle state.

公开(公告)号：US20250106866A1

公开(公告)日：2025-03-27

申请号：US18811157

申请日：2024-08-21

Applicant: Apple Inc.

Inventor： Kai Zhang ,  Ajay Singh ,  Deepankar Bhattacharjee ,  Lele Cui

IPC: H04W72/231 ,  H04L1/08 ,  H04W72/1268 ,  H04W76/20

Abstract: Methods, systems, apparatuses, and computer programs for transmission of a radio resource control (RRC) reconfiguration complete message are disclosed. In one aspect, operations are performed by a UE and can include receiving, from a base station, a first downlink control information (DCI) indicating a first uplink grant for a first physical uplink shared channel (PUSCH) transmission, wherein the first DCI includes a redundancy version (RV) corresponding to the first PUSCH transmission; determining whether the RV is self-decodable; and determining whether to transmit a RRC reconfiguration complete message using the first uplink grant for the first PUSCH transmission, based at least in part on the determination of whether the RV is self-decodable.

公开(公告)号：US12214099B2

公开(公告)日：2025-02-04

申请号：US18596748

申请日：2024-03-06

Applicant: Apple Inc.

Inventor： Srirang A Lovlekar ,  Sethuraman Gurumoorthy ,  Murtaza A. Shikari ,  Srinivasan Nimmala ,  Sree Ram Kodali ,  Fangli Xu ,  Haijing Hu ,  Yuqin Chen ,  Dawei Zhang ,  Longda Xing ,  Zhiwei Wang ,  Yaoqi Yan ,  Muthukumaran Dhanapal ,  Beibei Wang ,  Lele Cui

IPC: H04W76/00 ,  A61L2/10 ,  A61L2/22 ,  A61L2/24 ,  G05D1/00 ,  H04W52/02

Abstract: Devices and associated methods for operating a dual-subscriber identity module (SIM) dual-standby (DSDS) user equipment device (UE) configured with a first SIM and a second SIM. The UE performs communications with a first cellular network using the first SIM and a first radio resource control (RRC) connection, and receives a request to perform a higher priority communication using the second SIM. In response to the request to perform the higher priority communication, the UE transmits a request to the first network to suspend the first RRC connection. After transmission of the request to suspend the first RRC connection, the UE receives a message from the first network to place the first RRC connection in an inactive state, and initiates a timer, wherein the timer is used to determine whether the first RRC connection remains in the inactive state or transitions to an idle state.

公开(公告)号：US20240098838A1

公开(公告)日：2024-03-21

申请号：US17933915

申请日：2022-09-21

Applicant: APPLE INC.

Inventor： Lijie Zhang ,  Lele Cui ,  Xiaolong Tu ,  Dongzhou Yang ,  Tao Tao ,  Lei Zhou ,  Zihuan Xu

IPC: H04W76/28

CPC classification number: H04W76/28 ,  H04L1/0061

Abstract: Systems and methods related to “on/off” determinations regarding the performance of physical downlink control channel (PDCCH) monitoring during connected mode discontinuous reception (CDRX) on duration windows are disclosed herein. In some cases, a radio access network (RAN) predicts whether a downlink (DL) packet for a UE will arrive at a buffer of the RAN prior to an end of a CDRX on duration window of the UE, and sends a downlink control information (DCI) with a cyclic redundancy check (CRC) scrambled by a power-saving radio network temporary identifier (PS-RNTI) (DCP) for the CDRX on duration window indicating whether or not the UE should perform PDCCH monitoring during the CDRX on duration window based on the prediction. In some cases, a UE determines a current state of DL traffic and adaptively uses DCP monitoring based on the current state of the traffic. Aggregation level adaptation by the RAN is also discussed.

公开(公告)号：US20240098720A1

公开(公告)日：2024-03-21

申请号：US18468090

申请日：2023-09-15

Applicant: Apple Inc.

Inventor： Han Pu ,  Lijie Zhang ,  Alosious Pradeep Prabhakar ,  Lele Cui ,  Kai Zhang

IPC: H04W72/0453 ,  H04W36/24 ,  H04W72/232

CPC classification number: H04W72/0453 ,  H04W36/249 ,  H04W72/232

Abstract: A terminal may include configured to receive, from a network, multiple downlink signals. The terminal may include a processor configured to identify, from the downlink signals, at least one configuration parameter including a bandwidth part switching indicator. The processor may then identify at least one resource from a target bandwidth part indicated by the bandwidth part switching indicator. The processor may then determine a bandwidth part mismatch based on whether a signal is received using the at least one resource from the target bandwidth part.

公开(公告)号：US11917532B2

公开(公告)日：2024-02-27

申请号：US17481262

申请日：2021-09-21

Applicant: Apple Inc.

Inventor： Junzhen Qin ,  Wen Zhao ,  Lijie Zhang ,  Lele Cui ,  Wenping Lou ,  Qiang Miao ,  Zhiwei Wang ,  Ying Zhang ,  Deepankar Bhattacharjee ,  Kexin Ma ,  Alex Yee Kit Ho

IPC: H04W48/18 ,  H04B17/318 ,  H04W48/14 ,  H04W88/10

CPC classification number: H04W48/18 ,  H04B17/318 ,  H04W48/14 ,  H04W88/10

Abstract: This disclosure relates to techniques for multi-RAT and DSDA capable wireless devices to handle frame blanking in a wireless communication system. A wireless device may establish wireless links according to a first radio access technology and a second radio access technology. The wireless device may determine to perform transmit and receive blanking for one or more antennas of the wireless device for the first radio access technology to perform sounding reference signal transmissions for the second radio access technology based at least in part on a band combination for the wireless links. The wireless device may determine a modification to channel state feedback reporting for the first radio access technology based at least in part on the transmit and receive blanking. The wireless device may perform channel state feedback reporting using the determined modification.

公开(公告)号：US20200275311A1

公开(公告)日：2020-08-27

申请号：US16461879

申请日：2018-05-18

Applicant: Apple Inc.

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

IPC: H04W28/06 ,  H04L12/823 ,  H04W28/02

Abstract: A compressor may obtain information indicative of a transmit delay representative of a time duration that elapses between creation (e.g. by the compressor) of a packet and the transmission of the packet, e.g. over a wireless link. The transmit delay may be determined based at least on information indicative of the uplink capacity of the cellular network. The uplink capacity may be determined/obtained based on the uplink throughput and uplink power headroom. When the compressor receives a negative acknowledgement transmission/packet from the decompressor, if the transmit delay is not greater than a specified threshold value, the compressor may process the received negative acknowledgement packet. If the transmit delay is greater than the specified threshold value, the compressor may first discard the buffered compressed packet scheduled to be transmitted next to the decompressor, and transmit an initialization and refresh (IR) or IR dynamic packet to the decompressor instead.