公开(公告)号：US11533675B2

公开(公告)日：2022-12-20

申请号：US15746771

申请日：2016-04-01

Applicant: Apple Inc.

Inventor： Debdeep Chatterjee ,  Gang Xiong ,  Mohammad Mamunur Rashid ,  Tao Wu

IPC: H04W48/10 ,  H04L5/00 ,  H04W4/70 ,  H04W84/04

Abstract: Described is an Evolved Node-B (eNB) comprising one or more processors to generate a first transmission for a first Cellular Internet-of-Things (CIoT) device and a second transmission for a second CIoT device. The first transmission may be generated for a first Narrowband (NB) channel, and the second transmission may be generated for a second NB channel. The first and second transmissions may include the same set of system information. Also described is a CIoT device comprising one or more processors to process a System Information (SI) transmission on one of a plurality of NB channels, and to process and extract information from a PSS and/or SSS transmission on a set of subcarriers corresponding to a set of frequency bands. The plurality of NB channels are within a wireless communication system bandwidth, and at least two of the plurality of NB channels correspond to portions of the wireless communication system bandwidth outside the set of frequency bands.

公开(公告)号：US20220330381A1

公开(公告)日：2022-10-13

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 ,  H04W76/27 ,  H04L27/26 ,  H04W72/04

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：US20220174692A1

公开(公告)日：2022-06-02

申请号：US17441097

申请日：2020-03-27

Applicant: Apple Inc.

Inventor： Sergey Panteleev ,  Debdeep Chatterjee

IPC: H04W72/12 ,  H04W72/04 ,  H04L5/14 ,  H04L1/00

Abstract: In a general aspect, a User Equipment (UE) in a cellular communications network receives a Radio Resource Control (RRC) signaling message from a base station communicatively coupled to the UE over a communications channel. The UE accesses a search space in the RRC signaling message. The UE identifies a fallback Downlink Control Information (DCI) Information Element (IE) included in the search space. The UE determines whether an aggregation factor is indicated in the fallback DCI IE for shared channel communications with the base station, over multiple slots in the communications channel. The UE determines an uplink/downlink (UL/DL) configuration for transmission on the communications channel. The UE schedules an aggregated transmission over multiple slots in the communications channel based on the aggregation factor and the uplink/downlink configuration.

公开(公告)号：US20220159701A1

公开(公告)日：2022-05-19

申请号：US17438672

申请日：2020-05-01

Applicant: Apple Inc.

Inventor： Toufiqul Islam ,  Debdeep Chatterjee ,  Sergey Panteleev ,  Fatemeh Hamidi-Sepehr

IPC: H04W72/12 ,  H04L5/00 ,  H04L1/18

Abstract: Systems, devices, and techniques for controlling uplink transmissions including cancelling previously scheduled transmissions are described. A described technique includes receiving, by a user equipment (UE), a configuration information that provides a search space set configuration associated with a control resource set (CORESET) to monitor for an uplink cancellation indication; receiving, by the UE, scheduling information that schedules one or more uplink transmissions; monitoring, by the UE via a physical downlink control channel (PDCCH), for the uplink cancellation indication based on the configuration information; receiving, by the UE via the PDCCH, a downlink control information (DCI) message that comprises the uplink cancellation indication; and cancelling, by the UE, at least part of the one or more uplink transmissions in response to the uplink cancellation indication.

公开(公告)号：US20220159632A1

公开(公告)日：2022-05-19

申请号：US17536789

申请日：2021-11-29

Applicant: Apple Inc.

Inventor： Gang Xiong ,  Seunghee Han ,  Debdeep Chatterjee ,  Jong-Kae Fwu

IPC: H04W72/04 ,  H04W4/70 ,  H04L5/00 ,  H04W48/12 ,  H04W74/08

Abstract: Embodiments described herein relate generally to a communication between a user equipment (UE) and an evolved Node B (eNB). The UE and eNB may perform enhanced physical downlink control channel (EPDCCH)-less operation for scheduling of one or more common control messages, such as one or more system information blocks (SIBs), a random access response (RAR) message, or a paging message. Additionally, or alternatively, an eNB may configure a subset of aggregation levels for the search space of the UE to use for receiving a physical downlink control channel (PDCCH) or enhanced PDCCH (EPDCCH). Other embodiments may be described and/or claimed.

公开(公告)号：US11336414B2

公开(公告)日：2022-05-17

申请号：US16865690

申请日：2020-05-04

Applicant: Apple Inc.

Inventor： Debdeep Chatterjee ,  Seunghee Han

IPC: H04L5/00 ,  H04W4/70 ,  H04L1/18 ,  H04W84/04

Abstract: Techniques for transmitting hybrid automatic repeat request (HARQ) feedback by narrowband Internet-of-Things (NB-IoT) devices are provided. NB-IoT user equipment (UE) can transmit HARQ feedback in response to a narrowband physical downlink shared channel (NPDSCH) received over a downlink (DL). NB-IoT UEs can transmit the responsive HARQ feedback over a narrowband physical uplink shared channel (NPUSCH) or a narrowband physical uplink control channel (NPUCCH). Options for defining the physical structures of the NPUCCH and NPUSCH and user multiplexing on the uplink (UL) are provided. Determination of an UL resource allocation by determining resources in time, frequency, and the code domain for the HARQ feedback transmissions are also provided. Higher level signaling and/or indications provided in downlink control information (DCI) can be used to determine the time, frequency, or code domain resources.

公开(公告)号：US20220150839A1

公开(公告)日：2022-05-12

申请号：US17438678

申请日：2020-05-01

Applicant: Apple Inc.

Inventor： Toufiqul Islam ,  Fatemeh Hamidi-Sepehr ,  Debdeep Chatterjee ,  Sergey Panteleev

IPC: H04W52/14 ,  H04W72/12 ,  H04W52/08

Abstract: Systems, devices, and techniques for transmit power control (TPC) in wireless communication systems are described. A described technique performed by a user equipment (UE) includes signaling that enables transmit power control (TPC) accumulation; receiving, by the UE, downlink control information (DCI) messages corresponding to respective physical uplink shared channel (PUSCH) transmission occasions; determining, by the UE, power control adjustment states for the PUSCH transmission occasions; and transmitting, by the UE, in the PUSCH transmission occasions in accordance with the power control adjustment states. Determining the power control adjustment states can include selectively applying TPC accumulation to one or more of the power control adjustment states based on a determination that at least one of the PUSCH transmission occasions is out-of-order based on an arrival ordering of the DCI messages.

公开(公告)号：US20220141075A1

公开(公告)日：2022-05-05

申请号：US17435730

申请日：2020-03-27

Applicant: Apple Inc.

Inventor： Bishwarup Mondal ,  Debdeep Chatterjee ,  Yongjun Kwak ,  Daewon Lee ,  Avik Sengupta

IPC: H04L27/26 ,  H04W56/00 ,  H04L1/00

Abstract: Systems, methods, and circuitries are provided for maximizing use of discovery reference (DRS) resources for remaining minimum system information (RMSI) allocation. An example method includes configuring Type 0 physical downlink control channel (PDCCH) CORESET monitoring to include monitoring in either a first slot or a first slot and a second slot; generating a synchronization signal block (SSB) encoding the configured PDCCH CORESET monitoring; and transmitting the SSB to a user equipment (UE) by way of a discovery reference signal (DRS).

公开(公告)号：US11304157B2

公开(公告)日：2022-04-12

申请号：US16625131

申请日：2018-06-20

Applicant: Apple Inc.

Inventor： Alexei Vladimirovich Davydov ,  Avik Sengupta ,  Gang Xiong ,  Hong He ,  Yongjun Kwak ,  Debdeep Chatterjee ,  Dae Won Lee

IPC: H04J11/00 ,  H04W56/00 ,  H04W72/04 ,  H04L5/00 ,  H04L1/00

Abstract: A user equipment (UE) can include processing circuitry configured to decode synchronization information within a synchronization signal (SS) block, the SS block received within a SS burst set and occupying a subset of a plurality of Orthogonal Frequency Division Multiplexing (OFDM) symbols within a slot. At least one of the symbols in the subset coincides with a pre-defined symbol location associated with a demodulation reference signal (DM-RS) of a physical downlink shared channel (PDSCH). A synchronization procedure can be performed with a next generation Node-B (gNB) based on the synchronization information within the SS block. The DM-RS can be detected within the slot, where the DM-RS starts at a symbol location that is shifted from the pre-defined symbol location and following the subset of symbols. Downlink data received via the PDSCH is decoded based on the detected DM-RS.

公开(公告)号：US11284372B2

公开(公告)日：2022-03-22

申请号：US16495778

申请日：2018-03-22

Applicant: Apple Inc.

Inventor： Timothy F. Cox ,  Seunghee Han ,  Debdeep Chatterjee ,  Vallabhajosyula S. Somayazulu ,  Qiaoyang Ye ,  Salvatore Talarico ,  Maruti Gupta Hyde

IPC: H04W68/02 ,  H04W52/02

Abstract: Systems and methods of reducing power consumption associated with paging or cDRX mode are described. A wake-up receiver (WUR) wakes up from an idle mode or cDRX state. Whether a wake-up signal (WUS) has been received by the WUR is determined. The WUS is a low-complexity signal that is less complicated than a PDCCH or PDSCH and is repeated multiple times at resource elements as indicated in a configuration from an eNB. If received, a baseband transceiver wakes up for reception of a PDCCH for the UE in a PO when the UE is in the idle mode or a PDSCH for the UE when the UE is in the cDRX state.