公开(公告)号：US20240340132A1

公开(公告)日：2024-10-10

申请号：US18625521

申请日：2024-04-03

申请人： APPLE INC.

发明人： Haitong Sun ,  Wei Zeng ,  Jie Cui ,  Ankit Bhamri ,  Dawei Zhang ,  Hong He

IPC分类号： H04L5/00 ,  H04J13/00 ,  H04J13/12 ,  H04W72/1273

CPC分类号： H04L5/0048 ,  H04J13/0048 ,  H04J13/12 ,  H04W72/1273

摘要： Enhancements for a physical downlink shared channel (PDSCH) antenna ports indications for demodulation reference signal (DMRS) Type 2 with frequency domain orthogonal cover code length 4 are disclosed herein. Various embodiments herein relate the use of additional and/or replacement DMRS ports (e.g., for PDSCH) in an enhanced wireless communication system as compared to DMRS ports that may be used in legacy wireless communication systems. Various applicable scenarios are discussed. Various mechanisms for determining the additional and/or replacement DMRS ports with respect to the various discussed circumstances are also discussed.

公开(公告)号：US12114367B2

公开(公告)日：2024-10-08

申请号：US18318582

申请日：2023-05-16

申请人： Panasonic Intellectual Property Corporation of America

发明人： Michael Einhaus ,  Joachim Loehr ,  Hidetoshi Suzuki ,  Li Wang

IPC分类号： H04W74/0833 ,  H04J13/00 ,  H04L5/00 ,  H04L27/00 ,  H04W16/14 ,  H04W52/00 ,  H04W52/02 ,  H04W72/02 ,  H04W72/0453 ,  H04W72/21 ,  H04W74/00

CPC分类号： H04W74/0833 ,  H04J13/00 ,  H04L5/00 ,  H04L5/0064 ,  H04L5/0082 ,  H04L27/0006 ,  H04W52/00 ,  H04W52/0216 ,  H04W52/0219 ,  H04W72/02 ,  H04W72/0453 ,  H04W72/21 ,  H04W74/008 ,  H04L5/0007 ,  H04L5/001 ,  H04L5/0053 ,  H04W16/14

摘要： A user equipment includes circuitry which selects a random access preamble sequence, and a transmitter which transmits the random access preamble sequence to a base station in a frequency bandwidth of an unlicensed band, and performs at least one of a first operation and a second operation. In the first operation, the circuitry selects a first sequence as the random access preamble sequence, the first sequence having a length longer than a length of a random preamble sequence used for a licensed band, and the transmitter transmits the first sequence in the frequency bandwidth of the unlicensed band. In the second operation, the circuitry selects a second sequence as the random access preamble sequence, the second sequence having a length equal to the length of a random preamble sequence used for the licensed band, and the transmitter transmits the second sequence with repetitions in the frequency bandwidth of the unlicensed band.

公开(公告)号：US12075372B2

公开(公告)日：2024-08-27

申请号：US17384617

申请日：2021-07-23

申请人： Apple Inc.

发明人： Zhu Ji ,  Jianxiong Shi ,  Miao Yao

IPC分类号： H04W56/00 ,  H04J13/00 ,  H04L27/26

CPC分类号： H04W56/001 ,  H04J13/0062 ,  H04L27/2607 ,  H04L27/2634

摘要： In an example method, a first device determines a first Zadoff-Chu sequence having a first root value, and a second Zadoff-Chu sequence having a second root value, where the second root value is an inverse modulus of the first root value. Further, the first device generates a wireless signal including (i) a first preamble generated based, at least in part, on the first Zadoff-Chu sequence, (ii) a second preamble generated based, at least in part, on the second Zadoff-Chu sequence, and (iii) a payload. Further, the first device transmits the wireless signal from the first device to a second device.

公开(公告)号：US12048005B2

公开(公告)日：2024-07-23

申请号：US17268212

申请日：2019-08-21

申请人： Apple Inc.

发明人： Salvatore Talarico ,  Lopamudra Kundu ,  Jeongho Jeon ,  Dae Won Lee

IPC分类号： H04W74/0816 ,  H04B1/525 ,  H04J13/00 ,  H04L5/00 ,  H04W72/0453 ,  H04W74/00

CPC分类号： H04W74/0816 ,  H04B1/525 ,  H04J13/0062 ,  H04L5/001 ,  H04L5/0098 ,  H04W72/0453 ,  H04W74/004

摘要： 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：US12034583B2

公开(公告)日：2024-07-09

申请号：US18301993

申请日：2023-04-18

申请人： Sony Mobile Communications Inc.

发明人： Takashi Nakayama

IPC分类号： H04L27/26 ,  H04B7/0413 ,  H04B7/06 ,  H04B7/10 ,  H04W16/28 ,  H04W56/00 ,  H04W72/044 ,  H04W72/0446 ,  H04W88/08 ,  H04J13/00 ,  H04W36/08

CPC分类号： H04L27/2657 ,  H04B7/0413 ,  H04B7/0617 ,  H04B7/10 ,  H04L27/2691 ,  H04W16/28 ,  H04W56/001 ,  H04W72/0446 ,  H04W72/046 ,  H04W88/08 ,  H04W88/085 ,  H04J13/0062 ,  H04W36/08

摘要： A method and device for selecting a beam used in communication in an environment in which massive-MIMO beamforming is performed, to include a base station including: a communication unit configured to form multiple beams and perform communication with a terminal apparatus; and a control unit configured to transmit, to the terminal apparatus, first identification information of a group that is used in communication with the terminal apparatus among the first identification information allocated to groups each of which includes multiple beams to be formed.

公开(公告)号：US11996967B2

公开(公告)日：2024-05-28

申请号：US17097810

申请日：2020-11-13

申请人： Intel Corporation

发明人： Avik Sengupta ,  Alexei Davydov

IPC分类号： H04L27/26 ,  H04J13/00

CPC分类号： H04L27/2614 ,  H04J13/0014 ,  H04J13/004 ,  H04L27/26132 ,  H04L27/2636

摘要： Various embodiments herein provide techniques for reference signal (RS) configuration for high frequency bands (e.g., frequency above 52.6 GHz). For example, embodiments may include techniques for configuration of a demodulation reference signal (DM-RS), a channel state information reference signal (CSI-RS), and/or a sounding reference signal (SRS). The RS configuration may provide a low peak-to-average power ratio (PAPR) compared to prior techniques. Other embodiments may be described and claimed.

公开(公告)号：US20240171212A1

公开(公告)日：2024-05-23

申请号：US18512172

申请日：2023-11-17

申请人： Huawei Technologies Co., Ltd.

发明人： Peng Wang ,  Fredrik Berggren

IPC分类号： H04B1/7083 ,  H04B1/7093 ,  H04J11/00 ,  H04J13/00 ,  H04L27/26 ,  H04W72/044

CPC分类号： H04B1/7083 ,  H04B1/7093 ,  H04J11/0073 ,  H04J11/0076 ,  H04J13/0025 ,  H04J13/0029 ,  H04L27/2607 ,  H04W72/0466 ,  H04B2001/70935

摘要： This disclosure relates to techniques for synchronization signals. The synchronization signal comprises a primary synchronization signal (PSS) generated based on a PSS sequence and a secondary synchronization signal (SSS) generated based on an SSS sequence. The SSS sequence may be generated based on a first sequence corresponding to a first cyclic shift and a second sequence corresponding to a second cyclic shift. The first cyclic shift and the second cyclic shift are associated with a Cell ID. The PSS sequence may be generated based on one of the first and the second sequences.

公开(公告)号：US20240146434A1

公开(公告)日：2024-05-02

申请号：US18407811

申请日：2024-01-09

申请人： Sun Patent Trust

发明人： Takashi IWAI ,  Daichi IMAMURA ,  Akihiko NISHIO ,  Yoshihiko OGAWA ,  Masaru FUKUOKA

IPC分类号： H04J11/00 ,  H04B1/713 ,  H04B7/024 ,  H04B17/354 ,  H04J13/00 ,  H04L1/20 ,  H04L5/00

CPC分类号： H04J11/0053 ,  H04B1/713 ,  H04B7/024 ,  H04B17/354 ,  H04J13/0062 ,  H04J13/0074 ,  H04L1/20 ,  H04L5/0007 ,  H04L5/0035 ,  H04L5/0051 ,  H04L5/0091 ,  H04L1/0026

摘要： Provided are a wireless communication apparatus and a reference signal generating method, wherein inter-cell interference is reduced inside and outside a CoMP set. A CoMP mode setting unit (101) sets whether the terminal (100) thereof is a CoMP terminal or a Non-CoMP terminal. When the terminal (100) is set as a Non-CoMP terminal, the hopping pattern calculating unit (104) calculates a ZC sequence number to be used as the transmission timing, from among all the ZC sequence numbers that can be used within the system. When the terminal (100) is set as a CoMP terminal, the hopping pattern calculating unit (104) calculates a ZC sequence number to be used as the transmission timing, by hopping the ZC sequence numbers to be used within the CoMP set. A ZC sequence generating unit (105) generates a ZC sequence to be used as an SRS, using the calculated ZC sequence number.

公开(公告)号：US20240137257A1

公开(公告)日：2024-04-25

申请号：US18398817

申请日：2023-12-28

申请人： Texas Instruments Incorporated

发明人： Pierre Bertrand ,  Anthony Edet Ekpenyong

IPC分类号： H04L27/26 ,  H04J13/00 ,  H04L5/00 ,  H04L25/02

CPC分类号： H04L27/2613 ,  H04J13/0003 ,  H04J13/0062 ,  H04L5/0048 ,  H04L25/022 ,  H04L25/0226 ,  H04L25/0228

摘要： A wireless communication receiver including a serial to parallel converter receiving an radio frequency signal, a fast Fourier transform device connected to said serial to parallel converter converting FFTNFFT corresponding serial signals into a frequency domain; an EZC root sequence unit generating a set of root sequence signals; an element-by-element multiply unit forming a set of products including a product of each of said frequency domain signals from said fast Fourier transform device and a corresponding root sequence signal, an NSRS-length IDFT unit performing a group cyclic-shift de-multiplexing of the products and a discrete Fourier transform unit converting connected cyclic shift de-multiplexing signals back to frequency-domain.

公开(公告)号：US11956178B2

公开(公告)日：2024-04-09

申请号：US17380097

申请日：2021-07-20

申请人： HUAWEI TECHNOLOGIES CO., LTD.

发明人： Mingxin Gong ,  Bingyu Qu ,  Yongxing Zhou

IPC分类号： H04L5/00 ,  H04J13/00 ,  H04L25/02 ,  H04L27/26

CPC分类号： H04L5/0094 ,  H04J13/0062 ,  H04L25/0226 ,  H04L27/26025

摘要： A signal sending method, a signal receiving method, and a device for signal transmission or receiving are provided. A part that is of a first signal and that is carried on a kth subcarrier in an ith subcarrier group in N subcarrier groups is xi,nid(k), and a sequence {si,nid(k)} related to xi,nid(k) is one of enumerated sequences. The enumerated sequences are sequences with relatively good cross-correlation. Therefore, for two subcarrier groups, provided that selected {si,nid(k)} is two of the enumerated sequences, cross-correlation between signals carried in the two subcarrier groups can be ensured to be relatively good, thereby reducing interference between the signals and improving channel estimation performance.