公开(公告)号：US10756869B2

公开(公告)日：2020-08-25

申请号：US15744009

申请日：2015-12-24

Applicant: Apple Inc.

Inventor： Alexey Khoryaev ,  Andrey Chervyakov ,  Dmitry Belov ,  Mikhail Shilov

IPC: H04L5/00 ,  H04W76/14 ,  H04W56/00 ,  H04W72/04 ,  H04W4/46

Abstract: A wireless communication device is configured to perform demodulation of device-to-device (D2D) communication signals or LTE uplink signals in a User Equipment. In a transmitter, demodulation reference signal (DMRS) generation circuitry is provided for selective insertion of DMRS signals in resource elements of resource blocks of the signal for transmission using a pattern of resource elements spanning at least one of the resource blocks such that a minimum temporal spacing between consecutive symbols of the demodulation reference signal pattern is less than one slot. In a receiver the DMRS signals are used to perform channel estimation. A user equipment having the DMRS generation circuitry is provided. A computer program product is also provided. Other embodiments may be described and claimed.

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

IPC: H04L27/00 ,  H04B7/06

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.

公开(公告)号：US20250071814A1

公开(公告)日：2025-02-27

申请号：US18948221

申请日：2024-11-14

Applicant: Apple Inc.

Inventor： Alexey Khoryaev ,  Mikhail Shilov ,  Andrey Chervyakov ,  Sergey Panteleev

IPC: H04W74/0816 ,  H04B17/318 ,  H04W4/46 ,  H04W28/02 ,  H04W72/02 ,  H04W72/541 ,  H04W76/14

Abstract: Systems and methods of providing RAT co-existence and congestion control in V2V communications are generally described. A vUE detects specific non-LTE RAT transmissions in a listening period of a PSCCH or PSSCH, determines whether a metric has been met and reselects to a non-overloaded channel to communicate with other vUEs or the eNB. The manner of reselection is dependent on the RAT specific or V2X service priorities of the channels, as well as whether the channels are V2V service dependent.

公开(公告)号：US12150213B2

公开(公告)日：2024-11-19

申请号：US17830016

申请日：2022-06-01

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 ,  H04J13/00 ,  H04L5/00 ,  H04L27/26 ,  H04W72/23 ,  H04W76/27

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：US12108312B2

公开(公告)日：2024-10-01

申请号：US18241475

申请日：2023-09-01

Applicant: Apple Inc.

Inventor： Alexey Khoryaev ,  Andrey Chervyakov ,  Mikhail Shilov ,  Sergey Panteleev

IPC: H04W4/40 ,  H04W24/10 ,  H04W56/00 ,  H04W72/23 ,  H04W92/18

CPC classification number: H04W4/40 ,  H04W24/10 ,  H04W56/001 ,  H04W72/23 ,  H04W92/18

Abstract: Embodiments of a User Equipment (UE), Next Generation Node-B (gNB), Evolved Node-B (eNB) and methods of communication are generally described herein. The UE may detect one or more LTE synchronization signals from an eNB over an LTE Uu interface between the UE and the eNB. The LTE synchronization signals may be detected in resources allocated for LTE communication. The LTE synchronization signals may be detected in accordance with an LTE protocol. The UE may determine, based on the LTE synchronization signals, a reference timing and a reference frequency for NR vehicle-to-everything (V2X) communication over an NR PC5 interface with another UE.

公开(公告)号：US12068853B2

公开(公告)日：2024-08-20

申请号：US17864316

申请日：2022-07-13

Applicant: Apple Inc.

Inventor： Andrey Chervyakov ,  Alexey Khoryaev ,  Dmitry Belov ,  Mikhail Shilov ,  Sergey Sosnin

IPC: H04W4/00 ,  H04L1/00 ,  H04L5/00 ,  H04L25/02 ,  H04L27/26 ,  H04W4/40 ,  H04B7/0413

CPC classification number: H04L1/0069 ,  H04L5/0048 ,  H04L5/0051 ,  H04L25/0224 ,  H04L27/2675 ,  H04W4/40 ,  H04B7/0413

Abstract: Implementations of this disclosure generally may relate to the field of wireless communications. More specifically, implementations described in this disclosure relate to different 3GPP LTE and LTE-A system enhancements to address the issue and support reliable V2X operation in the high mobility environments. Several solutions to improve the V2X system performance in the high mobility vehicular channel propagation conditions are described. Some aspects relate to the suggestion of a new DMRS patterns within individual subframes that promote more accurate CFO estimation. Moreover, another aspect provides DMRS mapping or puncturing patterns to transmit individual DMRS in a periodic pattern on respective OFDM/SC-FDMA symbols so that they do not occupy all REs of the OFDM/SC-FDMA symbols, respectively.

公开(公告)号：US20240155687A1

公开(公告)日：2024-05-09

申请号：US18541248

申请日：2023-12-15

Applicant: Apple Inc.

Inventor： Alexey Khoryaev ,  Mikhail Shilov ,  Andrey Chervyakov ,  Sergey Panteleev

IPC: H04W74/0816 ,  H04B17/318 ,  H04W4/46 ,  H04W28/02 ,  H04W72/02 ,  H04W72/541

CPC classification number: H04W74/0816 ,  H04B17/318 ,  H04W4/46 ,  H04W28/0284 ,  H04W72/02 ,  H04W72/541 ,  H04W76/14

Abstract: Systems and methods of providing RAT co-existence and congestion control in V2V communications are generally described. A vUE detects specific non-LTE RAT transmissions in a listening period of a PSCCH or PSSCH, determines whether a metric has been met and reselects to a non-overloaded channel to communicate with other vUEs or the eNB. The manner of reselection is dependent on the RAT specific or V2X service priorities of the channels, as well as whether the channels are V2V service dependent.

公开(公告)号：US11882535B2

公开(公告)日：2024-01-23

申请号：US17950578

申请日：2022-09-22

Applicant: Apple Inc.

Inventor： Ajit Nimbalker ,  Debdeep Chatterjee ,  Jeongho Jeon ,  Fatemeh Hamidi-Sepehr ,  Sergey Panteleev ,  Gang Xiong ,  Alexey Vladimirovich Khoryaev ,  Mikhail Shilov ,  Sergey Sosnin ,  Andrey Chervyakov

IPC: H04W4/00 ,  H04W56/00 ,  H04L5/00 ,  H04W4/40 ,  H04W72/23 ,  H04W88/02

CPC classification number: H04W56/001 ,  H04L5/001 ,  H04L5/0048 ,  H04W4/40 ,  H04W72/23 ,  H04L5/0005 ,  H04L5/0007 ,  H04L5/0051 ,  H04L5/0094 ,  H04L5/0098 ,  H04W88/02

Abstract: Embodiments of a User Equipment (UE), Generation Node-B (gNB) and methods of communication are disclosed herein. The UE may attempt to decode sidelink synchronization signals (SLSSs) received on component carriers (CCs) of a carrier aggregation. In one configuration, synchronization resources for SLSS transmissions may be aligned across the CCs at subframe boundaries in time, restricted to a portion of the CCs, and restricted to a same sub-frame. The UE may, for multiple CCs, determine a priority level for the CC based on indicators in the SLSSs received on the CC. The UE may select, from the CCs on which one or more SLSSs are decoded, the CC for which the determined priority level is highest. The UE may determine a reference timing for sidelink communication based on the one or more SLSSs received on the selected CC.

公开(公告)号：US11849413B2

公开(公告)日：2023-12-19

申请号：US17950468

申请日：2022-09-22

Applicant: Apple Inc.

Inventor： Ajit Nimbalker ,  Debdeep Chatterjee ,  Jeongho Jeon ,  Fatemeh Hamidi-Sepehr ,  Sergey Panteleev ,  Gang Xiong ,  Alexey Vladimirovich Khoryaev ,  Mikhail Shilov ,  Sergey Sosnin ,  Andrey Chervyakov

IPC: H04W4/00 ,  H04W56/00 ,  H04L5/00 ,  H04W4/40 ,  H04W72/23 ,  H04W88/02

CPC classification number: H04W56/001 ,  H04L5/001 ,  H04L5/0048 ,  H04W4/40 ,  H04W72/23 ,  H04L5/0005 ,  H04L5/0007 ,  H04L5/0051 ,  H04L5/0094 ,  H04L5/0098 ,  H04W88/02

Abstract: Embodiments of a User Equipment (UE), Generation Node-B (gNB) and methods of communication are disclosed herein. The UE may attempt to decode sidelink synchronization signals (SLSSs) received on component carriers (CCs) of a carrier aggregation. In one configuration, synchronization resources for SLSS transmissions may be aligned across the CCs at subframe boundaries in time, restricted to a portion of the CCs, and restricted to a same sub-frame. The UE may, for multiple CCs, determine a priority level for the CC based on indicators in the SLSSs received on the CC. The UE may select, from the CCs on which one or more SLSSs are decoded, the CC for which the determined priority level is highest. The UE may determine a reference timing for sidelink communication based on the one or more SLSSs received on the selected CC.

公开(公告)号：US11792619B2

公开(公告)日：2023-10-17

申请号：US17258903

申请日：2019-08-08

Applicant: Apple Inc.

Inventor： Alexey Khoryaev ,  Andrey Chervyakov ,  Mikhail Shilov ,  Sergey Panteleev

IPC: H04W4/40 ,  H04W24/10 ,  H04W56/00 ,  H04W72/23 ,  H04W92/18

CPC classification number: H04W4/40 ,  H04W24/10 ,  H04W56/001 ,  H04W72/23 ,  H04W92/18

Abstract: Embodiments of a User Equipment (UE), Next Generation Node-B (gNB), Evolved Node-B (eNB) and methods of communication are generally described herein. The UE may detect one or more LTE synchronization signals from an eNB over an LTE Uu interface between the UE and the eNB. The LTE synchronization signals may be detected in resources allocated for LTE communication. The LTE synchronization signals may be detected in accordance with an LTE protocol. The UE may determine, based on the LTE synchronization signals, a reference timing and a reference frequency for NR vehicle-to-everything (V2X) communication over an NR PC5 interface with another UE.