公开(公告)号：US11729032B2

公开(公告)日：2023-08-15

申请号：US17519405

申请日：2021-11-04

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jiayin Zhang ,  Jun Zhu ,  Yalin Liu ,  Yingpei Lin

IPC: H04L29/06 ,  H04L27/26 ,  H04L5/00 ,  H04L9/40 ,  H04L45/02 ,  H04W84/12

CPC classification number: H04L27/2602 ,  H04L5/0044 ,  H04L5/0053 ,  H04L9/40 ,  H04L27/2603 ,  H04L45/08 ,  H04W84/12

Abstract: A method includes generating a preamble for a protocol version of a wireless local area network, where the preamble includes a legacy signal (L-SIG) field and a high efficiency signal (HE-SIG) field that are arranged in order, the HE-SIG field includes a first orthogonal frequency division multiplexing (OFDM) symbol and a second OFDM symbol that are arranged in order, and an input information bit of the first OFDM symbol is the same as that of the second OFDM symbol, and sending the preamble to a receive end device, so that the receive end device restores the preamble, and when determining that input information bits obtained after restoring the first OFDM symbol and the second OFDM symbol are the same, determines that the preamble is the preamble of the protocol version.

公开(公告)号：US11683828B2

公开(公告)日：2023-06-20

申请号：US17092758

申请日：2020-11-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Toufiqul Islam ,  Amine Maaref ,  Jiayin Zhang

IPC: H04W72/542 ,  H04L5/00 ,  H04W72/23 ,  H04W72/51 ,  H04W72/56 ,  H04W72/0446 ,  H04W72/0453

CPC classification number: H04W72/542 ,  H04L5/0048 ,  H04L5/0053 ,  H04W72/23 ,  H04W72/51 ,  H04L5/0007 ,  H04L5/0051 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/56

Abstract: Systems and methods are provided for transmitting and receiving pre-emption indications. The pre-emption indication is transmitted every K symbols or slots, on a group-common physical downlink control channel. The pre-emption indication is in respect of a group of K symbols or slots preceding a symbol or slot containing the group-common pre-emption indication. The group-common pre-emption indication indicates, for the group of K symbols or slots, which resources are pre-empted. The base station schedules resources for first downlink traffic, and transmits the scheduled first downlink traffic subject to pre-emption, and transmits second downlink traffic by pre-empting resources for the first downlink traffic. On the UE side, the UE receives the pre-emption indication. The UE receives its scheduled traffic taking into account the pre-emption indication.

公开(公告)号：US20230189332A1

公开(公告)日：2023-06-15

申请号：US18166763

申请日：2023-02-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yingpei Lin ,  Jiayin Zhang ,  Jun Luo ,  Le Liu

IPC: H04W74/04 ,  H04L5/00 ,  H04L9/40 ,  H04W72/23 ,  H04L69/22 ,  H04W72/0453

CPC classification number: H04W74/04 ,  H04L5/0053 ,  H04L5/0092 ,  H04L9/40 ,  H04L69/22 ,  H04W72/23 ,  H04W72/0453 ,  H04W48/12

Abstract: A method includes generating, by an apparatus, a physical protocol data unit (PPDU) for a downlink multiple-user transmission, wherein the PPDU includes: a legacy preamble, a high efficiency Wi-Fi Signaling Field 1 (HEW-SIG1), a high efficiency Wi-Fi Signaling Field 2 (HEW-SIG2), adjacent to the HEW-SIG1, and a data portion, and wherein the HEW-SIG1 comprises a HEW-SIG2 modulation and coding scheme (HEW-SIG2 MCS) field, the HEW-SIG2 MCS field indicates a transmission modulation and coding scheme (MCS) used to transmit the HEW-SIG2, the HEW-SIG1 further comprises a frame structure indication field, and the frame structure indication field indicates whether a frame structure of a scheduling transmission is an uplink structure or a downlink structure, and the HEW-SIG2 comprises resource indication information; and sending, by the apparatus, the PPDU.

公开(公告)号：US20230112545A1

公开(公告)日：2023-04-13

申请号：US17972944

申请日：2022-10-25

Applicant: Huawei Technologies Co., Ltd.

Inventor： Mohamed Adel Salem ,  Jiayin Zhang

IPC: H04W72/1268 ,  H04W74/00 ,  H04W72/23 ,  H04W16/14

Abstract: Methods and devices for grant-free uplink transmission in unlicensed spectrum are provided. A base station (BS) transmits grant-free resource configuration information to one or more electronic devices (EDs). The grant-free resource configuration information is used to configure the ED for GF uplink transmission in unlicensed spectrum. The GF resource configuration information includes GF ED group-specific resource configuration information indicating GF ED group-specific time-frequency (T/F) resources of the unlicensed spectrum for GF uplink transmission. The ED(s) transmit grant-free uplink transmissions over the unlicensed spectrum in accordance with the GF resource configuration information.

公开(公告)号：US20220394684A1

公开(公告)日：2022-12-08

申请号：US17821040

申请日：2022-08-19

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jiayin Zhang ,  Weiwei Fan ,  Qiong Jia

IPC: H04W72/04 ,  H04W72/12 ,  H04W74/08

Abstract: The method includes: A terminal device sends a first uplink control signal to a network device, where the first uplink control signal is used to indicate the network device to send a first downlink shared signal; and the network device sends the first downlink shared signal to the terminal device based on the first uplink control signal. Alternatively, a network device sends a second downlink control signal to a terminal device, where the second downlink control signal is used to indicate the terminal device to send a first uplink shared signal; and the terminal device sends the first uplink shared signal to the network device based on the second downlink control signal.

公开(公告)号：US20220124810A1

公开(公告)日：2022-04-21

申请号：US17565100

申请日：2021-12-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jiayin Zhang ,  Lei Huang ,  Yingpei Lin ,  Yan Xin

IPC: H04W74/08 ,  H04B7/08 ,  H04W16/14

Abstract: A method and system for LBT or CCA threshold setting for directional reception and transmission are provided. In an embodiment, a method in a wireless device for determining if a channel is clear in an unlicensed band channel in a wireless network includes detecting, with the wireless device, an energy along a first beamforming direction. The method also includes determining, with the wireless device, an energy detection threshold. The method also includes determining, with the wireless device, whether the unlicensed band channel is clear in at least the first receiving direction according to the energy and the energy detection threshold.

公开(公告)号：US11129191B2

公开(公告)日：2021-09-21

申请号：US16583702

申请日：2019-09-26

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jun Luo ,  Jiayin Zhang ,  Lei Huang

IPC: H04W74/08 ,  H04W56/00

Abstract: Embodiments of this application provide a signal transmission method and a device. The method includes: performing, by a network device, idle carrier sense in a downlink beam direction when a predefined sending time of each synchronization frame in a synchronization frame set arrives, where the synchronization frame set includes N synchronization frames, and each synchronization frame includes at least one synchronization signal block; and sending a synchronization signal block to a terminal in the downlink beam direction in a synchronization frame in which idle carrier sense succeeds, where the synchronization signal block includes a synchronization signal. The network device performs idle carrier sense in the downlink beam direction when the predefined sending time of each synchronization frame arrives, and sends the synchronization signal block including the synchronization signal in the downlink beam direction in the synchronization frame in which idle carrier sense succeeds.

公开(公告)号：US11115257B2

公开(公告)日：2021-09-07

申请号：US15919867

申请日：2018-03-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Toufiqul Islam ,  Jiayin Zhang

IPC: H04L27/26 ,  H04L1/18 ,  H04L5/00 ,  H04L1/00 ,  H04W72/04 ,  H04W28/10

Abstract: Aspects of the disclosure pertain to systems and methods for multiplexing of low latency and latency tolerant communications. When low latency traffic pre-empts latency tolerant traffic in a first interval, the pre-empted low latency traffic can be transmitted in a subsequent interval. There are multiple designs disclosed for notifying UE that are affected by the pre-emption events. The various designs include implicit or explicit notification that can be semi-static or dynamic. Examples of the notification include notification of that a pre-emption event occurs, notification of the location of the pre-emption event, notification of whether a supplementary transmission will occur and notification of the location of the supplementary transmission.

公开(公告)号：US20210243814A1

公开(公告)日：2021-08-05

申请号：US17238655

申请日：2021-04-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： Liqing Zhang ,  Jiayin Zhang ,  Mohamed Adel Salem

IPC: H04W74/08

Abstract: Systems and methods for two-step random access procedure are described. According to embodiments, a user equipment (UE) transmits a random access preamble on a random access channel. The UE also transmits data on an uplink data channel using a particular uplink data channel resource. The particular uplink data channel resource is selected by the UE based on the random access preamble.

公开(公告)号：US20210168855A1

公开(公告)日：2021-06-03

申请号：US17169763

申请日：2021-02-08

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lili Zhang ,  Jiayin Zhang

IPC: H04W74/00 ,  H04W74/08 ,  H04W72/04 ,  H04W72/12

Abstract: An information transmission method and an apparatus, where the method includes: sending first indication information to a terminal, where the first indication information is used to indicate a format configuration of one or more time units in first time duration, where the format configuration is a time domain structure configuration of the one or more time units in a transmission direction, where the first time duration is not greater than second time duration, and where the second time duration is a maximum channel occupancy time of a network device.