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1.
公开(公告)号:US20240197942A1
公开(公告)日:2024-06-20
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
CPC classification number: A61L2/24 , A61L2/10 , A61L2/22 , A61L2202/11 , A61L2202/14 , A61L2202/15 , A61L2202/16
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.
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2.
公开(公告)号:US20240172104A1
公开(公告)日:2024-05-23
申请号:US18421584
申请日:2024-01-24
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
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.
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公开(公告)号:US20230088766A1
公开(公告)日:2023-03-23
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
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.
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公开(公告)号:US11445047B2
公开(公告)日:2022-09-13
申请号:US16084658
申请日:2017-09-29
Applicant: Apple Inc.
Inventor: Yingjie Zhao , Jianxiong Shi , Lele Cui , Li Su , Faraz Faheem
Abstract: Some embodiments relate to a user equipment device (UE), and associated methods for performing ROHC header compression on TCP packets with MPTCP option enabled. In some embodiments, 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.
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公开(公告)号:US20240107613A1
公开(公告)日:2024-03-28
申请号:US18371771
申请日:2023-09-22
Applicant: Apple Inc.
Inventor: Bingyin Cui , Cheng Li , Han Pu , Lele Cui , Muthukumaran Dhanapal
IPC: H04W76/20 , H04W28/082
CPC classification number: H04W76/20 , H04W28/082
Abstract: Disclosed are methods, systems, and computer-readable medium to perform operations including: determining that a user equipment (UE) is connected to a cell of a network using a connection in a standalone (SA) mode; based on determining a bandwidth part (BWP) of the connection, accessing a physical cell identifier (PCI) list associated with the UE for a time period; based on the number of PCI values in the list and a duration of the time period, assigning, to a BWP switch timer, a timeout value; initiating the BWP switch timer; and in response to determining that the handover of the UE to the different cell of the network occurs prior to the BWP switch timer reaching the timeout value, causing the UE to switch to a LTE mode.
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公开(公告)号:US20240098639A1
公开(公告)日:2024-03-21
申请号:US17933923
申请日:2022-09-21
Applicant: APPLE INC.
Inventor: Lijie Zhang , Lele Cui , Xiaolong Tu , Dongzhou Yang , Tao Tao , Lei Zhou , Zihuan Xu
CPC classification number: H04W52/0232 , H04L1/0061 , H04W76/28
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.
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公开(公告)号:US11824959B2
公开(公告)日:2023-11-21
申请号:US17888331
申请日:2022-08-15
Applicant: Apple Inc.
Inventor: Yingjie Zhao , Jianxiong Shi , Lele Cui , Li Su , Faraz Faheem
CPC classification number: 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.
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公开(公告)号:US20230088031A1
公开(公告)日:2023-03-23
申请号:US17947003
申请日:2022-09-16
Applicant: Apple Inc.
Inventor: Kai Zhang , Ajay Singh , Deepankar Bhattacharjee , Lele Cui , Lijie Zhang
Abstract: A wireless network may include a PCELL base station, an SCELL base station, and user equipment (UE) that communicate using standalone carrier aggregation. The UE may receive PCELL signals during first measurement periods, may perform first measurements on the PCELL signals, may receive SCELL signals during second measurement periods, and may perform second measurements on the SCELL signals. When a scheduled reporting time approaches, the UE may compare a duration between a most recent of the second measurement periods and the reporting time to a threshold. If the duration is less than the threshold, the UE may include the most recent second measurement in a measurement report transmitted at the scheduled reporting time. When the duration exceeds the threshold, the receiver may perform a third measurement on the SCELL signals during an unscheduled period prior to the reporting time and may include the third measurement in the measurement report.
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公开(公告)号:US20220322078A1
公开(公告)日:2022-10-06
申请号:US17438996
申请日:2020-10-15
Applicant: Apple Inc.
Inventor: Fangli Xu , Dawei Zhang , Deepankar Bhattacharjee , Haijing Hu , Lele Cui , Lijie Zhang , Qiang Miao , Zhiwei Wang
Abstract: This disclosure relates to techniques for performing wireless communications using a split bearer. A user equipment device may perform a recovery operation for a lost uplink packet. The recovery operation may be in response to an indication from the network or may be initiated autonomously by the device.
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公开(公告)号:US12213067B2
公开(公告)日:2025-01-28
申请号:US18421584
申请日:2024-01-24
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
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.
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