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公开(公告)号：US20210204361A1
公开(公告)日：2021-07-01
申请号：US17111730
申请日：2020-12-04
Applicant: Apple Inc.
Inventor： Zhibin Yu , Michael A. Ruder , Jie Cui , Yang Tang
Abstract: Embodiments of a User Equipment (UE), Next Generation Node-B (gNB) and methods of communication are generally described herein. The UE may be configured for carrier aggregation (CA) in which a plurality of component carriers (CCs) are aggregated. The UE may determine a mapping of the CCs to a plurality of antenna panels for downlink reception, wherein a subset of the CCs are mapped to each antenna panel. The UE may transmit, to the gNB, radio resource control (RRC) signaling that indicates information related to the mapping. The gNB may, based at least partly on the mapping, determine, for each CC: a first scheduled time period for transmit beam refinement, and a second scheduled time period for receive beam refinement at the UE.
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公开(公告)号：US10999842B2
公开(公告)日：2021-05-04
申请号：US16747087
申请日：2020-01-20
Applicant: Apple Inc.
IPC: H04W76/28 , H04W76/27 , H04W52/28 , H04W84/04 , H04W76/15 , H04W88/06 , H04W72/04 , H04W24/10 , H04W56/00 , H04L5/00
Abstract: Embodiments of a user equipment (UE) for reporting of timing offset for dual connectivity enhancement are disclosed herein. The UE can include transceiver circuitry to connect to a master cell group via a master evolved node B (eNB) and a secondary cell group via a secondary eNB. Additionally, the UE can receive a first reference signal from the master eNB and a second reference signal from a secondary eNB. Moreover, the UE can include processing circuitry to calculate a system frame number (SFN) and subframe timing difference (SSTD) based on the first reference signal and the second reference signal. Moreover, the UE can generate a measurement report having a synchronization indicator for dual connectivity based on the calculated SSTD. Subsequently, the UE can send the generated measurement report to the master eNB.
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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：US10863582B2
公开(公告)日：2020-12-08
申请号：US16276824
申请日：2019-02-15
Applicant: Apple Inc.
Inventor： Zhibin Yu , Michael A. Ruder , Jie Cui , Yang Tang
Abstract: Embodiments of a User Equipment (UE), Next Generation Node-B (gNB) and methods of communication are generally described herein. The UE may be configured for carrier aggregation (CA) in which a plurality of component carriers (CCs) are aggregated. The UE may determine a mapping of the CCs to a plurality of antenna panels for downlink reception, wherein a subset of the CCs are mapped to each antenna panel. The UE may transmit, to the gNB, radio resource control (RRC) signaling that indicates information related to the mapping. The gNB may, based at least partly on the mapping, determine, for each CC: a first scheduled time period for transmit beam refinement, and a second scheduled time period for receive beam refinement at the UE.
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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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Patent Agency Ranking
356.发明授权公开(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：US12284016B2
公开(公告)日：2025-04-22
申请号：US18475468
申请日：2023-09-27
Applicant: Apple Inc.
Inventor： Manasa Raghavan , Jie Cui , Yushu Zhang , Andrey Chervyakov , Yang Tang
Abstract: Techniques for changing a Transmission Configuration Indication (TCI) state by a user equipment (UE) operating in a wireless communications system are provided. The UE receives a first message including a TCI state change command from a network and determines, based on the first message, whether a time offset/frequency offset (TO/FO) and a reception (Rx) beam for a new TCI state are known by the UE. Based on the determination, the UE calculates a time delay of the UE to be prepared to receive a reference signal with the new TCI state, generates a second message indicating the time delay of the UE for the new TCI state, and transmits the second message to the network.
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公开(公告)号：US12273906B2
公开(公告)日：2025-04-08
申请号：US17439024
申请日：2020-10-12
Applicant: Apple Inc.
Inventor： Haitong Sun , Yushu Zhang , Huaning Niu , Hong He , Wei Zeng , Chunxuan Ye , Oghenekome Oteri , Sigen Ye , Dawei Zhang , Chunhai Yao , Jie Cui , Yang Tang
IPC: H04W72/542 , H04L5/00 , H04W72/0446 , H04W72/23
Abstract: A cellular base station (BS) which transmits more flexible downlink control information (DCI) to the UE, and a UE capable of receiving and processing a received DCI message. The DCI message may have a DCI format of 0_1 or 0_2 and further may comprise an UL-SCH set to 0, a CSI request field of all 0s and an SRS request field having a nonzero value. The DCI message may indicate to the UE that the UE should: 1) transmit an aperiodic SRS corresponding to SRS request; and 2) that the UE should not transmit on the PUSCH. The DCI may include existing fields that specify either a slot offset or beam information useable when transmitting the aperiodic SRS. The base station may also generate a DCI message with an SRS trigger that is targeted to a plurality of UEs in a group, or a plurality of groups of UEs, for greater efficiency.
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公开(公告)号：US12267798B2
公开(公告)日：2025-04-01
申请号：US17813783
申请日：2022-07-20
Applicant: Apple Inc.
Inventor： Ankit Bhamri , Dawei Zhang , Sigen Ye , Wei Zeng , Yang Tang
Abstract: This application relates to wireless communications, including methods and apparatus to manage uplink (UL) transmit switching with multiple timing advance groups (TAGs) for wireless devices. A wireless device is configured to use multiple carriers selected from a set of available carriers that can be associated with different TAGs. When a second set of carriers, used after switching from a first set of carriers, includes carriers that belong to different TAGs, the wireless device determines whether to transmit on one or more first uplink transmission occasions for each of the carriers in the second set of carriers based on whether a first UL transmission occasion for at least one carrier overlaps a switching gap time period. The wireless device can disallow transmission on first UL transmission occasions of one or more carriers to accommodate the overlap.
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公开(公告)号：US12261797B2
公开(公告)日：2025-03-25
申请号：US17755678
申请日：2021-05-11
Applicant: Apple Inc.
Inventor： Jie Cui , Chunxuan Ye , Dawei Zhang , Haitong Sun , Hong He , Huaning Niu , Manasa Raghavan , Qiming Li , Xiang Chen , Yang Tang
Abstract: A user equipment (UE) is configured to determine to perform a sounding reference signal (SRS) transmission with an antenna port switch operation, wherein the SRS transmission with the antenna port switch operation is performed during an SRS transmission occasion comprising one or more symbols of a slot and apply one or more scheduling restriction rules corresponding to the SRS transmission with the antenna port switch to provide one or more scheduling restrictions for the UE, wherein the scheduling restrictions cause the UE to omit performing at least one of transmission operations or reception operations during one or more symbols of the slot or one or more symbols of an adjacent slot.
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