公开(公告)号：US20220303948A1

公开(公告)日：2022-09-22

申请号：US17439010

申请日：2020-10-15

Applicant: Apple Inc.

Inventor： Chunhai Yao ,  Chunxuan Ye ,  Dawei Zhang ,  Haitong Sun ,  Haijing Hu ,  Hong He ,  Huaning Niu ,  Fangli Xu ,  Oghenekome Oteri ,  Seyed Ali Akbar Fakoorian ,  Sigen Ye ,  Wei Zeng ,  Yuqin Chen ,  Yushu Zhang ,  Weidong Yang

IPC: H04W72/00 ,  H04W72/04 ,  H04L1/08 ,  H04L5/00

Abstract: This disclosure relates to apparatuses and methods for providing and managing reception feedback for multicast and broadcast services (MBS). A base station (BS) may select and communicate, to a group of user equipment devices (UEs), configuration parameters for MBS communications, such as an indication of an MBS retransmission procedure for an MBS service. The BS may also transmit, to the group of UEs, an MBS data communication. A first UE may receive the MBS data communication, but may determine that the received MBS data communication is corrupted. The first UE may respond by transmitting, to the BS, a negative-acknowledgement (NACK) message. The BS may retransmit the MBS data communication either as an MBS transmission or as a unicast transmission, based on the configuration parameters. The first UE may monitor the appropriate resources to receive the retransmitted MBS data communication, based on the configuration parameters.

公开(公告)号：US20220303088A1

公开(公告)日：2022-09-22

申请号：US17439059

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 ,  Jie Cui ,  Yang Tang

IPC: H04L5/00 ,  H04L41/0803 ,  H04W72/04

Abstract: A cellular base station (BS) which determines an aperiodic sounding reference signal (SRS) triggering offset configuration specifying an offset between an aperiodic SRS trigger received by a user equipment (UE) and transmission of the SRS by the UE. The cellular base station may determine that the SRS triggering offset should be adjusted. In response, the cellular base station may transmit signaling to the UE specifying a new value for the aperiodic SRS triggering offset. The new SRS triggering offset value may be partly based on a minimum timing offset for the UE and may be contained in a medium access control (MAC) control element (CE) or in downlink control information (DCI). Additionally, the new triggering offset value may be applicable for a plurality of component carriers or bandwidth parts. The cellular base station may also determine a new triggering offset value due to conflicts regarding the AP-SRS transmission.

公开(公告)号：US20220302986A1

公开(公告)日：2022-09-22

申请号：US17442108

申请日：2020-08-04

Applicant: Apple Inc.

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

IPC: H04B7/06 ,  H04W76/19 ,  H04W24/08 ,  H04W74/08 ,  H04W56/00

Abstract: This disclosure relates to performing beam failure recovery during an inter-cell connection involving a UE in communication with one or more base stations in a cellular communication system. In various embodiments, a user equipment determines one or more beam failures by monitoring one or more reference signals transmitted by one or more base stations, where the UE is connected to the one or more base stations. The UE further performs candidate beam detection by monitoring at least one candidate reference signal that is transmitted by one or more candidate base stations, where at least one candidate base station (a first candidate base station) is different from the one or more base stations to which the UE was previously communicating. The UE selects the first candidate base station based on the candidate beam detection, and transmits a beam failure recovery request (BFRQ) message to the first candidate base station based on the selection.

公开(公告)号：US20220302965A1

公开(公告)日：2022-09-22

申请号：US17833502

申请日：2022-06-06

Applicant: Apple Inc.

Inventor： Haitong Sun ,  Yushu Zhang ,  Wei Zeng ,  Dawei Zhang ,  Yuchul Kim ,  Hong He ,  Weidong Yang ,  Chunhai Yao ,  Chunxuan Ye ,  Oghenekome Oteri ,  Ismael Gutierrez Gonzalez ,  Ghaith N. Hattab ,  Jie Cui ,  Yang Tang ,  Haijing Hu ,  Fangli Xu ,  Zhibin Wu ,  Yuqin Chen ,  Yeong-Sun Hwang

IPC: H04B7/0413 ,  H04L1/18 ,  H04L5/00 ,  H04W72/04

Abstract: Apparatuses, systems, and methods for multi-TRP by a UE, including out of order delivery of PDSCH, PUSCH, and/or DL ACK/NACK. The UE may receive, from a base station, a configuration that may include multiple control resource set (CORESET) pools and each CORESET pool may be associated with an index value. The UE may determine that at least two DCIs of the multiple DCIs end at a common symbol and determine, based on one or more predetermined rules, when the UE may be scheduled to receive PDSCHs, transmit PUSCHs, and/or transmit ACK/NACKs from CORESETs associated with the at least two DCIs.

公开(公告)号：US20220279523A1

公开(公告)日：2022-09-01

申请号：US17442196

申请日：2021-01-13

Applicant: Apple Inc.

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

IPC: H04W72/10 ,  H04W72/04 ,  H04L5/00

Abstract: Uplink transmissions of a mobile device (UE) may be improved in a number of ways. Uplink Transmission Time Interval (TTI) bundling, including both Type-A and Type B PUSCH repetitions, may be implemented with variable TTI bundle sizing. The TTI bundle size may be determined by a base station and communicated to the UE explicitly, or may be determined by the UE implicitly, based on an indicated repetition number and frequency hopping number. The UE may also report frequency hopping (FH) assist information to the base station for use by the base station to more efficiently configure FH for the uplink transmissions. Finally, the UE may use (or maintain) the same transmission power, for each TTI transmit occasion of the same TTI bundle in order to improve (cross-slot) channel estimation accuracy. Power allocation may be prioritized to ensure that at the same time a total power for the uplink transmissions of the UE does not exceed a specified threshold.

公开(公告)号：US11432369B2

公开(公告)日：2022-08-30

申请号：US16446320

申请日：2019-06-19

Applicant: Apple Inc.

Inventor： Gang Xiong ,  Yushu Zhang ,  Dae Won Lee ,  Alexei Vladimirovich Davydov ,  Seunghee Han ,  Jie Zhu ,  Dmitry Belov ,  Debdeep Chatterjee ,  Andrey Chervyakov ,  Fatemeh Hamidi-Sepehr ,  Hong He ,  Toufiqul Islam ,  Jeongho Jeon ,  Alexey Vladimirovich Khoryaev ,  Lopamudra Kundu ,  Yongjun Kwak ,  Jose Armando Oviedo ,  Sergey Panteleev ,  Mikhail Shilov ,  Sergey Sosnin ,  Salvatore Talarico ,  Jan Zaleski

IPC: H04W88/06 ,  H04W76/27 ,  H04L27/26 ,  H04L5/00 ,  H04W72/04 ,  H04J13/00

Abstract: A user equipment (UE) can include processing circuitry coupled to memory. To configure the UE for New Radio (NR) communications above a 52.6 GHz carrier frequency, the processing circuitry is to decode radio resource control (RRC) signaling to obtain a cyclic shift value in time domain. The cyclic shift value is associated with a demodulation reference signal (DM-RS) antenna port (AP) of a plurality of available DM-RS APs. A single carrier based waveform DM-RS sequence corresponding to the DM-RS AP is generated using a base sequence and the cyclic shift value. The single carrier based waveform DM-RS sequence is encoded with uplink data for transmission to a base station using a physical uplink shared channel (PUSCH) using a carrier above the 52.6 GHz carrier frequency.

公开(公告)号：US20220272724A1

公开(公告)日：2022-08-25

申请号：US17438918

申请日：2021-01-14

Applicant: Apple Inc.

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

IPC: H04W72/12 ,  H04W72/04 ,  H04L5/00

Abstract: This disclosure relates to techniques for performing wireless communications including signaling resource allocation for multiple transport blocks (TBs) on either PUSCH or PDSCH using a single control element, such as a DCI. In various scenarios, the multiple TBs may be scheduled either at contiguous or at non-contiguous dime-domain resources. Various mechanisms are disclosed for performing signaling the resource allocation for the multiple TBs without introducing excessive signaling overhead.

公开(公告)号：US20220225416A1

公开(公告)日：2022-07-14

申请号：US17456304

申请日：2021-11-23

Applicant: Apple Inc.

Inventor： Hong He ,  Chunxuan Ye ,  Dawei Zhang ,  Haitong Sun ,  Huaning Niu ,  Jie Cui ,  Oghenekome Oteri ,  Wei Zeng ,  Yang Tang

IPC: H04W74/08 ,  H04W72/04

Abstract: Aspects herein relate to wireless devices, circuits, and methods for determining a PRACH resource mapping comprising a starting symbol position within a reference slot, wherein the starting symbol position is determined based, at least in part, on a subcarrier spacing configuration of PRACH resources of a wireless network that a wireless device is operating on; and using the radio to transmit a RACH preamble and an associated RA-RNTI via the determined PRACH resource mapping. Further aspects herein relate to devices, circuits, and methods for using a modified RA-RNTI for transmission or reception of data over a wireless network, wherein the wireless network has a subcarrier spacing configuration of PRACH resources, wherein a size of the subcarrier spacing configuration of the PRACH resources causes out-of-range RA-RNTI values to be calculated using a legacy RA-RNTI equation in an unmodified form, wherein the range of permissible RA-RNTI values is from 0 to 216−1.

公开(公告)号：US11375524B2

公开(公告)日：2022-06-28

申请号：US16462877

申请日：2018-08-01

Applicant: APPLE INC.

Inventor： Yuhan Zhou ,  Jie Cui ,  Yang Tang ,  Hong He

IPC: H04W72/12 ,  H04W72/04

Abstract: Systems and methods are provided for handling different timing advance (TA) adjustment delays corresponding to different transmission time intervals (TTIs) from different serving cells under carrier aggregation or dual connectivity. A user equipment (UE) selects and implements one TA adjustment delay even if two or more serving cells transmit with different TTIs. In one embodiment, the UE uses a predetermined TA adjustment delay for each of a plurality of TA commands received from serving cells with different TTI lengths. In another embodiment, the UE uses a TA adjustment delay that is a maximum value of the TA adjustment delays for the TTIs from the different serving cells.

公开(公告)号：US20220200748A1

公开(公告)日：2022-06-23

申请号：US17441687

申请日：2020-02-12

Applicant: Apple Inc.

Inventor： Chunhai Yao ,  Chunxuan Ye ,  Dawei Zhang ,  Fangli Xu ,  Haijing Hu ,  Haitong Sun ,  Hong He ,  Jie Cui ,  Oghenekome Oteri ,  Weidong Yang ,  Wei Zeng ,  Yang Tang ,  Yuchul Kim ,  Yuqin Chen ,  Yushu Zhang

IPC: H04L5/00 ,  H04L1/00 ,  H04W72/04 ,  H04L1/18

Abstract: The implementations disclosed provide apparatus, systems, and methods for downlink control information (DCI) enhancement for a reduced-complexity new radio (NR) wireless device. The wireless device includes one or more processors configured to transmit a type of the wireless device to a base station communicatively coupled to the wireless device. A format of the DCI is received from the base station. The DCI includes multiple bit strings indicating a schedule of a physical downlink shared channel (PDSCH) or a physical uplink shared channel (PUSCH). The format specifies a respective number of bits for each bit string. The format is defined by the base station based on the type of the wireless device. The DCI is received from the base station using a physical downlink control channel (PDCCH). The multiple bit strings are extracted from the DCI based on the format of the DCI.