公开(公告)号：US12101212B2

公开(公告)日：2024-09-24

申请号：US17646385

申请日：2021-12-29

申请人： Skyworks Solutions, Inc.

发明人： David Richard Pehlke

IPC分类号： H04L27/26 ,  H04L5/00 ,  H04W28/18 ,  H04W72/51

CPC分类号： H04L27/2603 ,  H04L5/0064 ,  H04L5/0094 ,  H04W28/18 ,  H04W72/51

摘要： Cellular radios employing multiple power amplifiers for legacy communications are disclosed herein. In certain embodiments, a mobile phone includes a first antenna, a second antenna, and an RFFE including a first transmit path operable to transmit a first RF signal on the first antenna using a first communication standard in a first mode, and a second transmit path operable to transmit a second RF signal on the second antenna using the first communication standard in the first mode. Furthermore, in a second mode the RFFE is implemented to reuse the first transmit path and the second transmit path to synchronously transmit a third RF signal on the first antenna and the second antenna using a second communication standard.

公开(公告)号：US12096471B2

公开(公告)日：2024-09-17

申请号：US18219644

申请日：2023-07-07

申请人： WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC. ,  SK TELECOM CO., LTD.

发明人： Geonjung Ko ,  Juhyung Son ,  Woojin Ahn ,  Jinsam Kwak

IPC分类号： H04W74/08 ,  H04L1/00 ,  H04L1/16 ,  H04L5/00 ,  H04L27/26 ,  H04W28/06 ,  H04W72/0446 ,  H04W72/51 ,  H04W74/00 ,  H04W74/0833 ,  H04W84/12

CPC分类号： H04W74/08 ,  H04L1/00 ,  H04L1/16 ,  H04L5/0007 ,  H04L27/2602 ,  H04L27/2603 ,  H04L27/2666 ,  H04W28/06 ,  H04W72/0446 ,  H04W72/51 ,  H04W74/00 ,  H04W74/0858 ,  H04W84/12 ,  H04L5/0048 ,  H04L27/26025

摘要： Provided is a wireless communication terminal that wirelessly communicates with a base wireless communication terminal. The wireless communication terminal includes a transceiver, and a processor. The processor is configured to set an integer selected from a range of 0 to a value equal to or smaller than an OFDMA Contention Window (OCW) as a counter for random access, receive a trigger frame for triggering random access using one or more resource units (RUs) allocated for the random access from the base wireless communication terminal using the transceiver, decrement a value of the counter based on the one or more RUs allocated for the random access, randomly select one RU based on the one or more RUs allocated for the random access when the value of the counter is 0 or reaches 0, and attempt transmission to the base wireless communication terminal using the selected RU.

公开(公告)号：US20240283687A1

公开(公告)日：2024-08-22

申请号：US18631489

申请日：2024-04-10

申请人： Panasonic Intellectual Property Management Co., Ltd.

发明人： Lei Huang ,  Yoshio Urabe ,  Michael Hong Cheng Sim

IPC分类号： H04L27/26 ,  H04B7/0452 ,  H04L1/00 ,  H04L5/00 ,  H04W72/20

CPC分类号： H04L27/2613 ,  H04B7/0452 ,  H04L1/0004 ,  H04L5/0007 ,  H04L5/0037 ,  H04L5/0094 ,  H04L27/2603 ,  H04W72/20

摘要： An transmission apparatus of the present disclosure comprises a transmission signal generator which, in operation, generates a transmission signal that includes a legacy preamble, a non-legacy preamble and a data field, wherein the non-legacy preamble comprises a first signal field and a second signal field, the second signal field comprising a first channel field and a second channel field, each of the first channel field and the second channel field comprising a common field that carries resource unit allocation information and a user-specific field that carries per-user allocation information for one or more terminal stations, and wherein a part of the user-specific field of one of the first channel field and the second channel field whichever is longer than the other channel field in length before appending padding bits is relocated to the other channel field; and a transmitter which, in operation, transmits the generated transmission signal.

公开(公告)号：US12068896B2

公开(公告)日：2024-08-20

申请号：US17426387

申请日：2020-02-03

申请人： Apple Inc.

发明人： Jie Zhu ,  Gang Xiong ,  Daewon Lee

IPC分类号： H04L27/26 ,  H04L5/00

CPC分类号： H04L27/26025 ,  H04L27/2603 ,  H04L27/2613 ,  H04L27/2636 ,  H04L5/0051

摘要： An approach is described for a method for a fifth generation (5G) wireless communication or a new radio (NR) system that includes the following steps. The method includes generating data samples associated with a sampling rate. The method further includes generating a waveform by populating a first slot and a second slot in a subframe of the waveform using the data samples, wherein slot durations of the first slot and the second slot in the subframe of the waveform equal respective durations of a first slot and a second slot in a subframe of a reference waveform to thereby align the first slot and the second slot in the subframe of the waveform with the respective first slot and second slot in the subframe of the reference waveform. The method further includes transmitting the waveform using front end circuitry, wherein the waveform is a single carrier waveform, and wherein the reference waveform is an orthogonal frequency division multiplexing (OFDM) waveform.

公开(公告)号：US12047207B2

公开(公告)日：2024-07-23

申请号：US18203746

申请日：2023-05-31

申请人： CANON KABUSHIKI KAISHA

发明人： Yuki Yoshikawa

IPC分类号： H04L25/03 ,  H04L5/00 ,  H04L27/26

CPC分类号： H04L25/03006 ,  H04L5/0048 ,  H04L27/2603 ,  H04L2025/03815

摘要： A communication device communicates a radio frame including a preamble and a data field of a physical layer (PHY). The preamble includes an L-STF (Legacy Short Training Field), an L-LTF (Legacy Long Training Field), an L-SIG (Legacy Signal Field), an EHT-SIG-A (Extremely High Throughput Signal A Field), an EHT-STF, and an EHT-LTF, and the EHT-SIG-A includes a field indicating a standard that the radio frame complies with.

公开(公告)号：US12021673B2

公开(公告)日：2024-06-25

申请号：US18101985

申请日：2023-01-26

申请人： Marvell Asia Pte Ltd

发明人： Rui Cao ,  Hongyuan Zhang ,  Liwen Chu ,  Prashant Sharma

IPC分类号： H04L27/26 ,  H04L5/00 ,  H04W4/40 ,  H04W72/0453 ,  H04W80/02

CPC分类号： H04L27/2602 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/0044 ,  H04L27/2603 ,  H04W4/40 ,  H04W72/0453 ,  H04W80/02 ,  H04L5/0048

摘要： A communication device performs a backoff procedure for a duration of time to determine whether a first sub-channel of a communication channel and a second sub-channel of the communication channel are available for transmission by the communication device. The first sub-channel is designated as a primary channel and the second sub-channel is designated as a secondary channel. Performing the backoff procedure includes using a single backoff counter, and starting and stopping the backoff counter based on sensing the first sub-channel and sensing the second sub-channel.

公开(公告)号：US12009961B2

公开(公告)日：2024-06-11

申请号：US17142607

申请日：2021-01-06

申请人： TEXAS INSTRUMENTS INCORPORATED

发明人： Mostafa Sayed Ibrahim ,  Il Han Kim ,  Tarkesh Pande ,  Anuj Batra

IPC分类号： H04L27/26 ,  H04B3/54 ,  H04B7/0413 ,  H04L5/00 ,  H04L7/04 ,  H04W74/0816 ,  H04L1/1867

CPC分类号： H04L27/2656 ,  H04B3/54 ,  H04B3/542 ,  H04B3/546 ,  H04B7/0413 ,  H04L5/0023 ,  H04L7/042 ,  H04L27/26 ,  H04L27/2602 ,  H04L27/2603 ,  H04L27/2613 ,  H04L27/2655 ,  H04L27/2663 ,  H04W74/0816 ,  H04L1/188

摘要： A PLC network system and method operative with OFDM for generating MIMO frames with suitable preamble portions configured to provide backward compatibility with legacy PLC devices and facilitate different receiver tasks such as frame detection and symbol timing, channel estimation and automatic gain control (AGC), including robust preamble detection in the presence of impulsive noise and frequency-selective channels of the PLC network. A PLC device may include a delayed correlation detector and a cross-correlation detector operating in concert to facilitate preamble detection in one implementation.

公开(公告)号：US11962444B2

公开(公告)日：2024-04-16

申请号：US17491525

申请日：2021-09-30

申请人： Marvell Asia Pte, Ltd.

发明人： Hongyuan Zhang ,  Mingguang Xu ,  Yakun Sun

IPC分类号： H04L27/26 ,  H04L69/22 ,  H04W84/12

CPC分类号： H04L27/2602 ,  H04L27/2603 ,  H04L27/2613 ,  H04L69/22 ,  H04W84/12 ,  H04L27/2605

摘要： A first communication device generates a PHY preamble of a PHY data unit to include a first orthogonal frequency division multiplexing (OFDM) symbol corresponding to a legacy signal field. The legacy signal field includes i) a length subfield, and ii) a rate subfield. The length subfield and the rate subfield indicate a duration of the PHY data unit, and the legacy signal field is formatted according to a legacy second communication protocol. The first communication device generates the PHY preamble of a PHY data unit to include a second OFDM symbol corresponding to a duplicate of the legacy signal field, and a plurality of additional OFDM symbols corresponding to a non-legacy signal field. The first communication device sets the length subfield of the legacy signal field to a length value such that a remainder value resulting from dividing the length value by three, indicates that the PHY data unit conforms to the first communication protocol.

公开(公告)号：US20240089063A1

公开(公告)日：2024-03-14

申请号：US18475022

申请日：2023-09-26

申请人： HUAWEI TECHNOLOGIES CO., LTD.

发明人： Ming GAN ,  Shimon SHILO ,  Leonid EPSTEIN ,  Oded REDLICH ,  Xun YANG ,  Tao WU

IPC分类号： H04L5/00

CPC分类号： H04L5/0053 ,  H04L5/0007 ,  H04L5/0044 ,  H04L27/2603

摘要： A radio physical layer protocol data unit (PPDU) sending method includes: obtaining, a radio physical layer protocol data unit (PPDU), wherein the PPDU includes a high efficiency-signal field A (HE-SIG-A) and a high efficiency-signal field B (HE-SIG-B), the HE-SIG-A includes a field indicating a quantity of orthogonal frequency division multiplexing (OFDM) symbols in the HE-SIG-B, and wherein a value of the field indicates one of the following: that the quantity of OFDM symbols included in the HE-SIG-B is greater than or equal to 16, or the quantity of OFDM symbols included in the HE-SIG-B; and sending the PPDU.

公开(公告)号：US20240040505A1

公开(公告)日：2024-02-01

申请号：US18470351

申请日：2023-09-19

申请人： SAMSUNG ELECTRONICS CO., LTD.

发明人： Jong Hoon Park

IPC分类号： H04W52/02 ,  H04W72/1268 ,  H04W74/00 ,  H04W74/08 ,  H04L27/26

CPC分类号： H04W52/0216 ,  H04W72/1268 ,  H04W52/0229 ,  H04W74/002 ,  H04W74/0816 ,  H04W74/0808 ,  H04L27/2603 ,  H04W72/0446

摘要： A method for transmitting a physical layer protocol data unit (PPDU) and a device using the same are provided. The device receives a trigger frame for requesting a transmission of a high efficiency (HE) trigger-based (TB) PPDU and transmits the HE TB PPDU. A duration of the HE TB PPDU is calculated based on a duration of the trigger frame.