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公开(公告)号：US20210410094A1
公开(公告)日：2021-12-30
申请号：US16476397
申请日：2018-02-06
Applicant: Apple Inc.
Inventor： Jie Cui , Hong He , Yang Tang , Yuan Zhu , Shuang Tian
Abstract: Methods and architectures to determine whether carrier aggregation (CA) component carrier signals transmitted or received by a user equipment (UE) device with a primary serving cell (PCell) and one or more secondary serving cells (SCell) exceed a maximum transmission timing difference compare a relative difference of signals derived from subframe boundaries, a subslot transmission time interval (sTTI) boundary or a combination thereof, with a maximum receive timing threshold value. In the uplink, timing advance groups (TAGs) for the PCell and/SCells may be compared by the UE to a maximum transmit timing threshold value. If the maximum thresholds are exceeded, the SCell may be dropped or changed to avoid UE from exceeding its power maximums.
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公开(公告)号：US11018748B2
公开(公告)日：2021-05-25
申请号：US17009062
申请日：2020-09-01
Applicant: APPLE INC.
Inventor： Hua Li , Yang Tang , Jie Cui , Shuang Tian , Yuhan Zhou
IPC: H04B7/06
Abstract: Systems and methods provide for beam detection in a wireless communication system. An apparatus for a UE may be configured to identify a plurality of CSI-RS resources corresponding to different Tx beams configured for measurement by the UE, measure an L1-RSRP for the plurality of CSI-RS resources, determine a selected Tx beam of the different Tx beams based on measured L1-RSRP values for the plurality of CSI-RS resources, and determine a measurement accuracy of a first L1-RSRP value corresponding to the selected Tx beam based on successful beam detection probability.
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公开(公告)号：US11895547B2
公开(公告)日：2024-02-06
申请号：US16476381
申请日：2018-02-02
Applicant: APPLE INC.
Inventor： Yang Tang , Candy Yiu , Rui Huang , Jie Cui , Shuang Tian
IPC: H04W36/00
CPC classification number: H04W36/0088
Abstract: An apparatus of an evolved NodeB (eNB) comprises one or more baseband processors to encode measurement gap configuration information including a measurement gap configuration information element MeasGapConfig to configure a network controlled small gap (NCSG) pattern for a user equipment (UE) device if the UE requires an NCSG and the UE is not configured with a primary secondary cell (PSCELL), and a memory to store the measurement gap configuration information.
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公开(公告)号：US11240692B2
公开(公告)日：2022-02-01
申请号：US16604982
申请日：2018-05-11
Applicant: Apple Inc.
Inventor： Jie Cui , Yang Tang , Rui Huang , Yuan Zhu , Shuang Tian
Abstract: An invention to perform a method of cell measurement in a wireless network, wherein the wireless network comprises a plurality of frequency layers, the invention configured to: determine a Measurement Gap Length, MGL, for each one of the plurality of frequency layers operational in the wireless network; determine a gap bitmap to indicate a measurement gap availability in a time sequence for each one of the plurality of frequency layers of the wireless network; and transmit gap assistance information for each one of the plurality of frequency layers of the wireless network to a User Equipment, wherein the gap assistance information comprises at least the determined Measurement Gap Length and the determined gap bitmap.
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公开(公告)号：US11134432B2
公开(公告)日：2021-09-28
申请号：US16480837
申请日：2018-02-02
Applicant: Apple Inc.
Inventor： Anatoliy Ioffe , Debdeep Chatterjee , Marta Martinez Tarradell , Andrey Chervyakov , Jie Cui , Seau S. Lim , Qiaoyang Ye , Yang Tang , Seunghee Han , Shuang Tian
Abstract: An apparatus of a user equipment (UE) includes processing circuitry configured to decode a master information block (MIB) using a set of physical broadcast channel (PBCH) symbols received within a downlink frame to obtain system frame number (SFN) information. The downlink frame includes multiple copies of the PBCH symbols within at least three subframes of the downlink frame. A system information block (SIB) may be decoded based on the SFN information, to obtain uplink channel configuration information. Random access channel (RACH) procedure may be performed with a base station (BS) based on the uplink channel configuration information, to obtain an uplink resource assignment. A connection setup completion message can be encoded for transmission to the BS using the uplink resource assignment. The set of PBCH symbols can include a set of four legacy PBCH symbols.
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Patent Agency Ranking
公开(公告)号：US20210006995A1
公开(公告)日：2021-01-07
申请号：US16604982
申请日：2018-05-11
Applicant: Apple Inc.
Inventor： Jie Cui , Yang Tang , Rui Huang , Yuan Zhu , Shuang Tian
Abstract: An invention to perform a method of cell measurement in a wireless network, wherein the wireless network comprises a plurality of frequency layers, the invention configured to: determine a Measurement Gap Length, MGL, for each one of the plurality of frequency layers operational in the wireless network; determine a gap bitmap to indicate a measurement gap availability in a time sequence for each one of the plurality of frequency layers of the wireless network; and transmit gap assistance information for each one of the plurality of frequency layers of the wireless network to a User Equipment, wherein the gap assistance information comprises at least the determined Measurement Gap Length and the determined gap bitmap.
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公开(公告)号：US10862599B2
公开(公告)日：2020-12-08
申请号：US16410562
申请日：2019-05-13
Applicant: Apple Inc.
Inventor： Shuang Tian , Andrey Chervyakov , Dmitry Belov , Jie Cui , Yang Tang
IPC: H04B17/00 , H04B17/391 , H04B17/21 , H04B17/29 , H04B7/08
Abstract: Systems and methods provide solutions for testing an 8Rx capable UE using test cases for 4Rx capable UEs. An example method establishes a connection from a first Tx source and a second Tx source to each of 8Rx antenna ports. The connection duplicates a fading channel from both the first Tx source and the second Tx source to each of the eight Rx antenna ports, and adds independent noise for each of the 8Rx antenna ports. One test scenario uses 4Rx supported RF bands by connecting four of the Rx ports with data from a system simulator, and the other four Rx ports are connected with zero input. Same requirements specified with 4Rx capable UEs are applied. Another test scenario uses 8Rx supported RF bands and applies lower dB SNR requirements than those specified for 4Rx tests.
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公开(公告)号：US10784947B2
公开(公告)日：2020-09-22
申请号：US16379047
申请日：2019-04-09
Applicant: Apple Inc.
Inventor： Yang Tang , Shuang Tian , Andrey Chervyakov , Jie Cui , Hua Li , Dmitry Belov , Carlos Cordeiro , Geng Wu , Jeongho Jeon , Puneet Jain , Qian Li , Youn Hyoung Heo , Anthony Lee , Seau S. Lim
Abstract: Embodiments of a User Equipment (UE), Next Generation Node-B (gNB) and methods of communication are generally described herein. The UE receive training signals from a plurality of transmit-receive points (TRPs) associated with the gNB. Each training signal may comprise a reference signal resource identifier (ID) to indicate a corresponding TRP and a corresponding transmit direction of a plurality of transmit directions. The UE may, for each transmit direction of the plurality of transmit directions, determine an average signal quality measurement based on individual signal quality measurements in multiple receive directions. The UE may select, for reporting to the gNB, a subset of the average signal quality measurements to ensure that the average signal quality measurements excluded from the subset are less than or equal to a minimum value of the average signal quality measurements in the subset.
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公开(公告)号：US12284666B2
公开(公告)日：2025-04-22
申请号：US17432827
申请日：2020-02-24
Applicant: Apple Inc.
Inventor： Qiming Li , Jie Cui , Yang Tang , Yuhan Zhou , Shuang Tian
IPC: H04W72/542
Abstract: A system, method, and apparatus is provided for performing carrier aggregation (CA) radio resource management (RRM). The system, method, and apparatus can receive a configuration message having configuration information from an access node; determine a measurement period for a secondary cell (SCell) and a cell identification delay based upon the configuration information; identify a new detectable cell on a secondary component carrier (SCC) as the SCell within the cell identification delay; perform a measurement for a CA operation within the measurement period; and report the measurement to the access node. The configuration message can be a Radio Resource Control (RRC) message. The measurement for the CA operation can be a measurement of the SCell on the SCC. The system, method, and apparatus can multiply a measurement control parameter by a factor less than five (5) to determine the measurement period and can multiply a measurement control parameter by a factor less than twenty (20) to determine the cell identification delay. The system, method, and apparatus can further perform an action with respect to the SCell in response to the measurement.
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公开(公告)号：US12225393B2
公开(公告)日：2025-02-11
申请号：US17431286
申请日：2020-02-21
Applicant: Apple Inc.
Inventor： Yuhan Zhou , Qiming Li , Shuang Tian , Jie Cui , Rui Huang , Yang Tang
Abstract: Some embodiments of this disclosure include systems, apparatuses, methods, and computer-readable media for use in a wireless network for radio link monitoring for high speed user equipment (UE). For example, some embodiments are directed to the UE including radio front end circuitry and processor circuitry coupled to the radio front end circuitry. The processor circuitry can be configured to monitor a downlink associated with a cell using a reference signal and estimate a downlink radio link quality associated with the downlink. The processor circuitry can further be configured to compare the estimated downlink radio link quality with a threshold. The processor circuitry can further be configured to trigger an out-of-sync operation in response to the downlink radio link quality being worse than the threshold. The threshold can include a value less than 10%.
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