公开(公告)号：US20230044098A1

公开(公告)日：2023-02-09

申请号：US17950912

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: H04W56/00 ,  H04L5/00 ,  H04W4/40 ,  H04W72/12

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：US11575554B2

公开(公告)日：2023-02-07

申请号：US16055964

申请日：2018-08-06

Applicant: Apple Inc.

Inventor： Alexei Davydov ,  Gang Xiong ,  Debdeep Chatterjee ,  Hong He ,  Gregory Morozov ,  Sameer Pawar ,  Yushu Zhang ,  Victor Sergeev ,  Dmitry Dikarev ,  Daewon Lee

IPC: H04W72/04 ,  H04L27/26 ,  H04L5/00 ,  H04B7/06 ,  H04W76/11 ,  H04W76/27 ,  H04L1/00 ,  H04W88/06

Abstract: A scrambling sequence generation method is disclosed for reference signals, data, and downlink and uplink control channels. The scrambling sequence generation method determines an initial seed value used to calculate the scrambling sequence. The initial seed value is based on different parameters relating to the to be transmitted signals, and some of these parameters are explicitly defined for New Radio.

公开(公告)号：US11552774B2

公开(公告)日：2023-01-10

申请号：US16273566

申请日：2019-02-12

Applicant: Apple Inc.

Inventor： Qiaoyang Ye ,  Debdeep Chatterjee

IPC: H04L5/14 ,  H04L5/00 ,  H04L27/26

Abstract: Embodiments described herein relate to time division duplexing (TDD) support for in-band, guard band, and standalone operation modes of narrowband internet-of-things (NB-IoT) systems. At least one example is directed to an indication technique for transmission of a narrowband system information block type 1 (SIB1-NB) on a carrier.

公开(公告)号：US11496277B2

公开(公告)日：2022-11-08

申请号：US16349584

申请日：2018-06-15

Applicant: APPLE INC.

Inventor： Jeongho Jeon ,  Joonyoung Cho ,  Gang Xiong ,  Hong He ,  Debdeep Chatterjee

IPC: H04L5/00 ,  H04W72/04

Abstract: Methods, systems, and storage media are described for physical resource block indexing to provide coexistence for narrow band, carrier aggregation, and wide band user equipment in new radio. Other embodiments may be described and/or claimed.

公开(公告)号：US11387942B2

公开(公告)日：2022-07-12

申请号：US16410095

申请日：2019-05-13

Applicant: Apple Inc.

Inventor： Sergey Panteleev ,  Debdeep Chatterjee ,  Hong He

IPC: H04L1/08 ,  H04W72/04 ,  H04W76/27 ,  H04L27/00 ,  H04L1/00 ,  H04L5/00 ,  H04L1/16

Abstract: An apparatus is configured for a next Generation NodeB (gNB). The apparatus comprises baseband circuitry and/or application circuitry which includes a radio frequency (RF) interface and one or more processors. The one or more processors are configured to determine a transmission mode for a user equipment (UE) device; dynamically determine a repetition level sequence for a physical downlink shared channel (PDSCH) based on a transmission time interval (TTI) and the transmission mode; generate repetition level signaling for the determined repetition level sequence; and provide the generated repetition level signaling to the RF interface for transmission to the UE device.

公开(公告)号：US11382140B2

公开(公告)日：2022-07-05

申请号：US17020368

申请日：2020-09-14

Applicant: Apple Inc.

Inventor： Qiaoyang Ye ,  Debdeep Chatterjee ,  Bharat Shrestha ,  Marta Martinez Tarradell ,  Dmitry Dikarev

IPC: H04W74/08 ,  H04L5/00 ,  H04W76/27 ,  H04L69/22

Abstract: Provided herein is design of early data transmission in wireless communication system. An apparatus for a user equipment (UE) includes a processor configured to: encode a physical random access channel (PRACH) sequence from a plurality of PRACH sequence for transmission via a PRACH to perform a random access procedure, wherein indication of support of early data transmission (EDT) that is transmitted during the random access procedure is based on at least one of the plurality of PRACH sequences, higher layer signaling, PRACH resources, PRACH formats, and a payload from the UE; and send the PRACH sequence to a radio frequency (RF) interface; and the RF interface to receive the PRACH sequence from the processor. Design of random access response (RAR) is also disclosed herein.

公开(公告)号：US20220166550A1

公开(公告)日：2022-05-26

申请号：US17441440

申请日：2020-03-26

Applicant: Apple Inc.

Inventor： Qiaoyang Ye ,  Debdeep Chatterjee ,  Gregory Morozov ,  Pradeep Bhandari

IPC: H04L1/08 ,  H04W52/14

Abstract: Systems, devices, and techniques for indicating the number of repetitions for a downlink control information (DCI) message are described. A described technique includes transmitting an indication of a repetition number for a downlink control information (DCI) message having a predetermined format for transmit power control (TPC) of an uplink channel by a user equipment (UE); and transmitting, to the UE via a machine-type communications physical downlink control channel (MPDCCH), repetitions of the DCI message in accordance with the predetermined format and in accordance with the repetition number. The predetermined format can based on a DCI format 3 or 3A for bandwidth-reduced low-complexity or coverage enhanced (BL/CE) UEs.

公开(公告)号：US11343052B2

公开(公告)日：2022-05-24

申请号：US16487226

申请日：2018-03-22

Applicant: Apple Inc.

Inventor： Qiaoyang Ye ,  Debdeep Chatterjee ,  Salvatore Talarico

IPC: H04L5/00

Abstract: A network device such as an evolved NodeB (eNB) or next generation NodeB (gNB) can configure a set of user equipment (UE) for cell reference signal (CRS) muting in order to provide better channel quality and power efficiency in communications. Where an eNB mutes CRS transmissions that are not needed by any UE, an improvement in downlink throughput and reduce connection drop rate can be generated. A CRS muting capability can be determined based on a user equipment (UE) capability information. According to the CRS muting capability of a UE, CRS muting can be generated in a physical channel outside of a narrow band (NB) or a wide band (WB) plus/minus X physical resource blocks (PRBs), wherein X is a non-negative integer, based on the CRS muting capability.

公开(公告)号：US20220140977A1

公开(公告)日：2022-05-05

申请号：US17536471

申请日：2021-11-29

Applicant: Apple Inc.

Inventor： Gang Xiong ,  Sergey Panteleev ,  Debdeep Chatterjee ,  Yushu Zhang

IPC: H04L5/00 ,  H04W76/27 ,  H04W72/04

Abstract: Embodiments of dynamic multiplexing are described, including the transmission of preemption indication (PI) to indicate preemption of time-frequency resources. In some embodiments, a next Generation NodeB (gNB) is configured to transmit PIs in signaling to preempt an enhanced Mobile Broadband (eMBB) communications transmission with an ultra-reliable and low latency communications (URLCC) transmission. In some embodiments, a user equipment (UE) is configured to monitor a region of time-frequency resources, within a bandwidth part (BWP), for a PI. The PI indicates to the UE a portion of time-frequency resources that omit transmissions intended for the UE. In some embodiments, the gNB transmits the PI to the UE within preemption indication downlink control information (PI-DCI) in a physical downlink control channel (PDCCH) in a control resource set (CORESET). In some embodiments, the BWP is defined according to a frequency domain location, a bandwidth, and a subcarrier spacing for a given numerology.

公开(公告)号：US20220110100A1

公开(公告)日：2022-04-07

申请号：US17502422

申请日：2021-10-15

Applicant: Apple Inc.

Inventor： Hong He ,  Debdeep Chatterjee ,  Gang Xiong

IPC: H04W72/04 ,  H04W24/08 ,  H04W76/27 ,  H04W76/11 ,  H04W48/16 ,  H04L5/00

Abstract: A network device (e.g., a user equipment (UE), or a new radio NB (gNB)) can process or generate a configuration of physical downlink control channel (PDCCH) monitoring in different search spaces sets independently from one another in order to manage different services optimally. A processor of the network device can be configured to receive physical downlink control channel (PDCCH) candidates of a PDCCH in a slot for channel estimation across search spaces of the slot. Different priorities can be determined among the PDCCH candidates in the slot based on a priority rule. Then a number of PDCCH candidates can be skipped/dropped from monitoring based on the different priorities of the PDCCH candidates to ensure that a threshold level of blind decoding operations across a plurality of slots of the PDCCH is being satisfied. The UE can monitor a portion of the PDCCH candidates while concurrently skipping another.