公开(公告)号：US20230076789A1

公开(公告)日：2023-03-09

申请号：US17441592

申请日：2020-05-14

Applicant: Apple Inc.

Inventor： Oghenekome Oteri ,  Haitong Sun ,  Chunhai Yao ,  Yushu Zhang ,  Dawei Zhang ,  Chunxuan Ye ,  Weidong Yang ,  Wei Zeng ,  Hong He

IPC: H04W52/24 ,  H04W52/32 ,  H04W52/34 ,  H04L5/00

Abstract: Various techniques are presented to improve phase tracking reference signal (PTRS) performance with respect to very high frequency communications. According to some embodiments, increased power boosting may be applied to improve PTRS performance, while still keeping power spectral density (PSD) within ETSI Broadband Radio Access Networks (BRAN) limits. In some cases, the power boosting may be semi-static and/or dynamic. In other embodiments, the improved performance may be achieved by dynamically changing time and/or frequency density of the PTRS. In other embodiments, a multi-port configuration may be used for the downlink PTRS. In other embodiments, one or more PTRS configurations may be determined per SCS and/or frequency band, e.g., based on traffic type, channel priority, parameters signaled in the slot format indication (SFI), etc. In other embodiments, common phase error (CPE) estimates may be obtained for those OFDM symbols without PTRS by interpolating the available PTRS estimates in the time domain.

公开(公告)号：US20230071357A1

公开(公告)日：2023-03-09

申请号：US17821552

申请日：2022-08-23

Applicant: APPLE INC.

Inventor： Hong He ,  Chunhai Yao ,  Chunxuan Ye ,  Dawei Zhang ,  Haitong Sun ,  Oghenekome Oteri ,  Seyed Ali Akbar Fakoorian ,  Wei Zeng ,  Weidong Yang ,  Yushu Zhang

IPC: H04W74/08 ,  H04L1/18 ,  H04L5/00

Abstract: Systems, methods, and apparatuses for cross division duplex (XDD) operation in a wireless communication system are described herein. A user equipment (UE) is configured with one or more sub-bands (SBs) within a larger overall bandwidth (BW) (e.g., represented by a component carrier (CC), a bandwidth part (BWP), etc.), and that use uplink (UL)/downlink (DL) resource allocation(s) that may be different than the larger BW. Configurations for such SB-specific (SBS) arrangements that use guard bands (GBs) between SBs are discussed. Mechanisms for slot format indications (SFIs) within such SBs using either SBS DCI or cross-SB DCI are discussed. Mechanisms for providing SBS uplink resource for initial access (e.g., random access) using at least one initial UL BWP that is configured relative to one or more SBs and that may be used by XDD-capable UEs are discussed.

公开(公告)号：US20230059550A1

公开(公告)日：2023-02-23

申请号：US17598222

申请日：2020-05-14

Applicant: Apple Inc.

Inventor： Chunhai Yao ,  Chunxuan Ye ,  Dawei Zhang ,  Haitong Sun ,  Hong He ,  Jia Tang ,  Jie Cui ,  Oghenekome Oteri ,  Sigen Ye ,  Wei Zeng ,  Weidong Yang ,  Yang Tang ,  Yushu Zhang

IPC: H04W72/12 ,  H04L1/18

Abstract: A sidelink transmission and an uplink transmission that is carrying a sidelink hybrid automatic repeat request (HARQ) are both scheduled for transmission in a shared time window. If a priority associated with the sidelink HARQ is considered to be higher than a priority associated with the sidelink transmission, then a higher priority is assigned to the uplink transmission, regardless of whether the uplink transmission contains other uplink data. Otherwise, if the uplink transmission does not carry other uplink data, then the higher priority is assigned to the sidelink transmission. Greater transmission resources are given to the transmission with the higher priority.

公开(公告)号：US20230033872A1

公开(公告)日：2023-02-02

申请号：US17441170

申请日：2020-04-08

Applicant: Apple Inc.

Inventor： Oghenekome Oteri ,  Chunxuan Ye ,  Dawei Zhang ,  Haitong Sun ,  Hong He ,  Wei Zeng ,  Weidong Yang ,  Yushu Zhang ,  Sigen Ye ,  Chunhai Yao

IPC: H04W48/12

Abstract: An example method for wireless communication includes: configuring a wireless device to access a wireless network using a set of at least three components carriers (CCs); dividing the at least three component carriers into groups of component carriers based on whether the component carriers share a span pattern and a starting span for monitoring a Physical Downlink Control Channel (PDCCH) of each component carrier; determining a number of non-overlapping control channel elements (CCE) to monitor for each group of component carriers; and configuring the wireless device to monitor the non-overlapping CCEs based on the determined number to monitor for each group.

公开(公告)号：US20230030177A1

公开(公告)日：2023-02-02

申请号：US17758410

申请日：2020-12-15

Applicant: APPLE INC.

Inventor： Jie Cui ,  Hong He ,  Dawei Zhang ,  Chunhai Yao ,  Chunxuan Ye ,  Haitong Sun ,  Weidong Yang ,  Wei Zeng ,  Yuchul Kim ,  Yushu Zhang ,  Zhibin Wu ,  Yang Tang

IPC: H04W56/00 ,  H04W24/10 ,  H04L5/14

Abstract: Methods, systems, and devices for wireless communications are described. SSB based inter-frequency measurements may include configuring a UE to perform inter-frequency measurements without measurement gap within a measurement window, and applying scheduling restrictions to prioritize the inter-frequency measurements over uplink transmissions within the measurement window. The measurement window includes an SMTC window duration. Measurement resource sharing or restriction is described for SSB based inter-frequency measurement objects without measurement gap.

公开(公告)号：US20230028029A1

公开(公告)日：2023-01-26

申请号：US17441003

申请日：2020-04-08

Applicant: Apple Inc.

Inventor： Jie Cui ,  Weidong Yang ,  Yuchul Kim ,  Hong He ,  Chunxuan Ye ,  Wei Zeng ,  Dawei Zhang ,  Chunhai Yao ,  Oghenekome Oteri ,  Yushu Zhang ,  Yang Tang ,  Ismael Gutierrez Gonzalez ,  Haitong Sun ,  Ziyang Ju

IPC: H04L1/18 ,  H04L1/16

Abstract: Techniques discussed herein can facilitate successful decoding of Physical Downlink Shared Channel (PDSCH) based on a reduced number of retransmissions. Based on a given PDSCH, embodiments discussed herein can communicate feedback (e.g., Hybrid Automatic Repeat reQuest (HARQ) feedback, Channel State Information (CSI) feedback) that indicates an amount of additional information that can allow a User Equipment (UE) to successfully decode the PDSCH. In some embodiments, the feedback can indicate a requested Redundancy Version (RV) sequence that can allow the UE to successfully decode the PDSCH. In other embodiments, the feedback can indicate the amount of additional information, based on which a receiving Base Station (BS) can select a RV sequence.

公开(公告)号：US20230015168A1

公开(公告)日：2023-01-19

申请号：US17375924

申请日：2021-07-14

Applicant: Apple Inc.

Inventor： Sigen Ye ,  Dawei Zhang ,  Chunhai Yao ,  Chunxuan Ye ,  Hong He ,  Haitong Sun ,  Yushu Zhang ,  Seyed Ali Akbar Fakoorian ,  Weidong Yang ,  Oghenekome Oteri ,  Wei Zeng

IPC: H04W72/12 ,  H04W72/04 ,  H04L1/00

Abstract: The present application relates to devices and components including apparatus, systems, and methods for limiting processing associated with multiple repetitions of an uplink or downlink transmission in wireless communication systems.

公开(公告)号：US20230007636A1

公开(公告)日：2023-01-05

申请号：US17903457

申请日：2022-09-06

Applicant: Apple Inc.

Inventor： Hong He ,  Debdeep Chatterjee ,  Gang Xiong ,  Hwan-Joon Kwon ,  Sergey Sosnin ,  Yongjun Kwak

IPC: H04W72/04 ,  H04L1/18 ,  H04W72/12 ,  H04L1/08

Abstract: Embodiments of a User Equipment (UE), Generation Node-B (gNB) and methods of communication are disclosed herein. The UE may receive a physical downlink control channel (PDCCH) that schedules a physical downlink shared channel (PDSCH) in a slot, and on a component carrier (CC) of a plurality of CCs, The PDCCH may include a total downlink assignment index (DAI) and a counter DAI for hybrid automatic repeat request acknowledgement (HARQ-ACK) feedback of the PDSCH. The total DAI may indicate a total number of pairs of CCs and slots for the HARQ-ACK feedback. The UE may encode the HARQ-ACK feedback to include a bit that indicates whether the PDSCH is successfully decoded. A size of the HARQ-ACK feedback may be based on the total DAI, and a position of the bit may be based on the counter DAI.

公开(公告)号：US11546968B2

公开(公告)日：2023-01-03

申请号：US16968846

申请日：2019-08-15

Applicant: Apple Inc.

Inventor： Wei Zhang ,  Fangli Xu ,  Haitong Sun ,  Sriram Subramanian ,  Vishwanth Kamala Govindaraju ,  Johnson O. Sebeni ,  Dawei Zhang ,  Hong He ,  Yuchul Kim ,  Haijing Hu ,  Yuqin Chen ,  Wei Zeng ,  Sanjeevi Balasubramanian ,  Sandeep K. Sunkesala ,  Tarakkumar G. Dhanani ,  Madhukar K. Shanbhag ,  Shiva Krishna Narra ,  Longda Xing ,  Srinivasan Nimmala ,  Sree Ram Kodali ,  Murtaza A. Shikari ,  Sethuraman Gurumoorthy ,  Srirang A. Lovlekar ,  Xu Ou

IPC: H04W4/00 ,  H04W88/10 ,  H04W88/02 ,  H04W76/15 ,  H04W24/08 ,  H04W72/04 ,  H04W76/27

Abstract: A user equipment (UE) device may reside in a state of dual connectivity with a master cell group (MCG) and a secondary cell group (SCG), wherein the radio access technologies of the MCG and the SCG are different. While in the dual connectivity state, the UE device may transition to a mode of reduced activity (e.g., processing and/or RF activity) relative to the secondary cell group (SCG) in order to save power, e.g., when traffic flow via the SCG is below a threshold, or when scheduling activity on the SCG is low. Various mechanisms may be employed to reduce activity, e.g., mechanisms such as reduction of beam monitoring, deactivation of secondary cells of the SCG, reduction of number of active antenna elements, employment of longer periods for periodic measurement and reporting processes, etc.

公开(公告)号：US20220417819A1

公开(公告)日：2022-12-29

申请号：US17770594

申请日：2019-11-07

Applicant: Apple Inc.

Inventor： Jie Cui ,  Chunhai Yao ,  Chunxuan Ye ,  Dawei Zhang ,  Haitong Sun ,  Hong He ,  Wei Zeng ,  Weidong Yang ,  Yang Tang ,  Yuchul Kim ,  Yushu Zhang ,  Zhibin Wu

IPC: H04W36/30 ,  H04W36/08 ,  H04W36/00

Abstract: Embodiments are presented herein of apparatuses, systems, and methods for a user equipment device (UE) and/or cellular network to perform to perform cell detection and measurement, e.g., in new radio (NR) unlicensed (NR-U). The UE may determine that a threshold condition related to missed reference signal opportunities is reached. In response, the UE may modify reference signal monitoring and/or measurement.