公开(公告)号：US11503627B2

公开(公告)日：2022-11-15

申请号：US17215324

申请日：2021-03-29

Applicant: Apple Inc.

Inventor： Gang Xiong ,  Hong He ,  Ajit Nimbalker ,  Joonyoung Cho ,  Dae Won Lee

IPC: H04W72/12 ,  H04L1/18 ,  H04L5/00 ,  H04W72/04

Abstract: Methods, apparatus, and systems are provided for signalling transmissions using carriers of different numerologies. In one example, a baseband processor of a base station is configured to perform operations including encoding a first signal to be transmitted on a physical downlink control channel (PDCCH) on a first component carrier with a first subcarrier spacing. The first signal includes downlink control information (DCI) indicating resources for a second signal to be transmitted on a second component carrier with a second subcarrier spacing. The DCI is based on a predetermined numerology and respective numerologies of the first component carrier and the second component carrier are different from one another in accordance with the first subcarrier spacing and the second subcarrier spacing. The baseband processor is configured to cause transmission of the first signal on the PDCCH.

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：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：US20220006585A1

公开(公告)日：2022-01-06

申请号：US17397849

申请日：2021-08-09

Applicant: Apple Inc.

Inventor： Salvatore Talarico ,  Qiaoyang Ye ,  Debdeep Chatterjee ,  Seunghee Han ,  Dae Won Lee

IPC: H04L5/00 ,  H04W4/70 ,  H04W76/27 ,  H04J11/00 ,  H04L27/26 ,  H04W56/00

Abstract: Embodiments of efeMTC synchronization signals for enhanced cell search and enhanced system information acquisition are described. In some embodiments, an apparatus of a base station (BS) is configured to generate a length-x sequence for an efeMTC synchronization signal, the length-x sequence configured for repetition in frequency domain within 6 physical resource blocks (PRB). In some embodiments, to generate the length-x sequence, the BS may be configured to select any one index of the set of root indices {1, 2, 63}, excluding the root indices 25, 29 and 34, to correspond to a different physical-layer cell identity (PCID). In some embodiments, the BS may be configured to encode RRC signaling to include a System Information Block (SIB) comprising configuration information for transmission of the efeMTC synchronization signal, and transmit the length-x sequence as the efeMTC synchronization signal in frequency resources according to the SIB.

公开(公告)号：US20210321457A1

公开(公告)日：2021-10-14

申请号：US17268212

申请日：2019-08-21

Applicant: Apple Inc.

Inventor： Salvatore Talarico ,  Lopamudra Kundu ,  Jeongho Jeon ,  Dae Won Lee

IPC: H04W74/08 ,  H04W74/00 ,  H04W72/04 ,  H04J13/00

Abstract: A network device (e.g., a user equipment (UE), a new radio NB (gNB), or other network component) can process or generate a dynamic indication that indicates a transmission bandwidth based on a wideband bandwidth. One or more downlink (DL) signals can be provided with the indication of the transmission bandwidth that enables a tuning of communications within the wideband bandwidth based on the indication for new radio (NR) communications in heterogeneous network domains ranging from Enhanced Mobile Broadband (eMBB) to massive Machine-Type Communications (mMTC) and Ultra-Reliable Low-Latency Communications (URLLC) or the like.

公开(公告)号：US20210297204A1

公开(公告)日：2021-09-23

申请号：US17265429

申请日：2019-08-09

Applicant: APPLE INC.

Inventor： Alexei Davydov ,  Gang Xiong ,  Gregory V. Morozov ,  Yushu Zhang ,  Dae Won Lee

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

Abstract: Technology for a Next Generation NodeB (gNB) operable to adapt to a downlink waveform type for wireless transmissions is disclosed. The gNB can encode an indicator of a downlink waveform type of a plurality of downlink waveform types for transmission to a user equipment (UE). The gNB can encode 5 a downlink signal for transmission on a downlink physical channel to the UE using the indicated downlink waveform type in a wireless system operating above a 52.6 gigahertz (GHz) carrier frequency.

公开(公告)号：US11088797B2

公开(公告)日：2021-08-10

申请号：US16496363

申请日：2018-03-20

Applicant: Apple Inc.

Inventor： Salvatore Talarico ,  Qiaoyang Ye ,  Debdeep Chatterjee ,  Seunghee Han ,  Dae Won Lee

IPC: H04L5/00 ,  H04W4/70 ,  H04W76/27 ,  H04J11/00 ,  H04L27/26 ,  H04W56/00

Abstract: Embodiments of efeMTC synchronization signals for enhanced cell search and enhanced system information acquisition are described. In some embodiments, an apparatus of a base station (BS) is configured to generate a length-x sequence for an efeMTC synchronization signal, the length-x sequence configured for repetition in frequency domain within 6 physical resource blocks (PRB). In some embodiments, to generate the length-x sequence, the BS may be configured to select any one index of the set of root indices {1, 2, . . . , 63}, excluding the root indices 25, 29 and 34, to correspond to a different physical-layer cell identity (PCID). In some embodiments, the BS may be configured to encode RRC signaling to include a System Information Block (SIB) comprising configuration information for transmission of the efeMTC synchronization signal, and transmit the length-x sequence as the efeMTC synchronization signal in frequency resources according to the SIB.

公开(公告)号：US10985848B2

公开(公告)日：2021-04-20

申请号：US16483982

申请日：2018-05-15

Applicant: Apple Inc.

Inventor： Yushu Zhang ,  Wook Bong Lee ,  Dae Won Lee ,  Seunghee Han ,  Alexei Davydov ,  Guotong Wang ,  Gregory Morozov

IPC: H04B17/327 ,  H04B7/0413 ,  H04B7/06 ,  H04B7/08

Abstract: Provided herein are method and apparatus for perform radio link monitoring (RLM) based on a Reference signal (RS). An embodiment provides a user Equipment (UE) comprising circuitry configured to: decode a Reference Signal (RS) received from an access node; and determine beam quality for one or more beam pair links (BPLs) of the RS between the UE and the access node based on the decoded RS, wherein each of the BPLs comprises a transmit (Tx) beam of the access node and a receive (Rx) beam of the UE. Also provided is a procedure of RLM. At least some embodiments allow for beam recovery request for UE beam refinement, and allow for determining whether radio link failure (RLF) occurs.

公开(公告)号：US10826571B2

公开(公告)日：2020-11-03

申请号：US16475733

申请日：2017-12-15

Applicant: Apple Inc.

Inventor： Dae Won Lee ,  Seunghee Han ,  Ajit Nimbalker ,  Alexei Davydov ,  Paul C. Wei ,  Dmitry Dikarev

IPC: H04L5/00 ,  H04B7/0413 ,  H04L1/00

Abstract: Embodiments of a Generation Node-B (gNB), User Equipment (UE) and methods for communication are generally described herein. The gNB may map data symbols to resource elements (REs) of virtual resource blocks (VRBs). The gNB may interleave the data symbols, on a per-VRB basis, to spatial layers of a multi-layer multiple-input multiple-output (MIMO) transmission. The data symbols may be interleaved based on different interleave patterns of VRB indexes for the spatial layers. The gNB may map the interleaved data symbols of the spatial layers to REs of physical resource blocks (PRBs) for orthogonal frequency division multiplexing (OFDM) transmission.

公开(公告)号：US20200267803A1

公开(公告)日：2020-08-20

申请号：US16645534

申请日：2018-09-10

Applicant: Apple Inc.

Inventor： Yongjun Kwak ,  Dae Won Lee ,  Gregory Vladimirovich Morozov ,  Seunghee Han

IPC: H04W88/06 ,  H04W74/08 ,  H04W76/11 ,  H04L5/00 ,  H04L27/26

Abstract: A user equipment (UE) can include processing circuitry configured to decode system information block (SIB) information including a PRACH configuration index. The PRACH configuration index indicates at least a first preamble format and a second preamble format. A PRACH preamble is encoded for transmission to a base station within a PRACH resource indicated by the PRACH configuration index. The PRACH preamble is associated with the first preamble format or the second preamble format. A random access channel response (RAR) message from the base station is decoded. The RAR message includes an uplink grant for scheduling a physical uplink shared channel (PUSCH) transmission. Data is encoded for transmission on the PUSCH based on the uplink grant. The PRACH resource comprises a plurality of PRACH occasions, where the PRACH preamble is transmitted within a PRACH occasion from the plurality of PRACH occasions with a starting symbol indicated by the PRACH configuration index.