公开(公告)号：US20230276413A1

公开(公告)日：2023-08-31

申请号：US18313849

申请日：2023-05-08

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiao Han ,  Mengyao Ma ,  Yan Xin ,  Chenlong Jia ,  Ming Gan

IPC: H04W72/0446 ,  H04L1/16

CPC classification number: H04W72/0446 ,  H04L1/16 ,  H04B7/06

Abstract: This application provides an information indication method and an apparatus. In this application, a sending apparatus generates and sends a first frame, the first frame includes at least one piece of sub-time resource indication information, and each piece of sub-time resource indication information is in a one-to-one correspondence with one of at least one response apparatus. In addition, each piece of sub-time resource indication information includes a time resource at which the corresponding response apparatus sends feedback information for the first frame to the sending apparatus and a time resource at which the sending apparatus sends acknowledgment information for the feedback information to the corresponding response apparatus, so that the at least one response apparatus and the sending apparatus that sends the first frame can simultaneously perform beamforming training, thereby improving effectiveness of beamforming training performed on the sending apparatus and the at least one response apparatus.

公开(公告)号：US11637572B2

公开(公告)日：2023-04-25

申请号：US17028592

申请日：2020-09-22

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yan Xin ,  Sheng Sun

IPC: H04L12/741 ,  H03M13/00 ,  H04L27/34 ,  H04L27/26 ,  H04L69/18 ,  H04L27/00 ,  H04L1/00 ,  H04L5/00 ,  H04L69/22 ,  H04L27/20 ,  H04W72/04 ,  H03M13/27 ,  H04W84/12 ,  H03M13/11 ,  H03M13/29

Abstract: A method of auto-detection of WLAN packets includes selecting a first Golay sequence from a first pair of Golay complementary sequences associated with first packet type, each Golay sequence of the first pair of Golay complementary sequences being zero correlation zone (ZCZ) sequences with each Golay sequence of a second pair of Golay complementary sequences associated with a second packet type, and transmitting a wireless packet carrying a short training field (STF) that includes one or more instances of the first Golay sequence.

公开(公告)号：US20220360305A1

公开(公告)日：2022-11-10

申请号：US17307031

申请日：2021-05-04

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jung Hoon Suh ,  Yan Xin ,  Osama Aboul-Magd ,  Kwok Shum Au

IPC: H04B7/06 ,  H04L1/00 ,  H04L25/03

Abstract: Aspects of the disclosure provide for methods and systems for Sub-codebook based Trellis Coded Quantization for CSI Feedback. An aspect of the disclosure provides method executed by a receiver. The method includes receiving a signal from a transmitter, via a communication channel between the receiver and the transmitter. The method further includes estimating parameters associated with the channel based on the received signal. The method further includes obtaining phase information from the estimated parameters. The method further includes applying a trellis coded quantization (TCQ) scheme to the obtained phase information by mapping each sub-codebook index of a set of sub-codebook indices to output bits of each trellis branch making the distance between sub-codebooks maximally equal. The method further includes transmitting a channel state information (CSI) measurement feedback to the transmitter, the CSI measurement feedback based on the TCQ scheme and comprising one or more of: a beginning state, input bits to the TCQ scheme, and a sub-codebook index.

公开(公告)号：US11456847B2

公开(公告)日：2022-09-27

申请号：US16987720

申请日：2020-08-07

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiao Han ,  Chenlong Jia ,  Yan Xin

IPC: H04L5/14 ,  H04L27/26 ,  H04W72/04

Abstract: Embodiments of this application relate to the communications field, and in particular, to an information sending/receiving method and apparatus in the communications field. The information receiving method includes: determining an information receiving time based on any two of a time division duplex sector sweep acknowledgement frame count index, a count index, and a time division duplex sector sweep frame count index, duration of a time division duplex sector sweep frame, and duration of a time division duplex sector sweep acknowledgement frame; and receiving information at the determined information receiving time. According to the information receiving/sending method provided in the embodiments of this application, the information sending apparatus can send information at an accurate information sending time, the information receiving apparatus can receive the information at an accurate information receiving time, and system communication can be normally performed.

公开(公告)号：US11425753B2

公开(公告)日：2022-08-23

申请号：US16555848

申请日：2019-08-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Osama Aboul-Magd ,  Yan Xin ,  Jung Hoon Suh

IPC: H04W74/08 ,  H04L5/00 ,  H04L5/14 ,  H04W72/04

Abstract: Systems and methods for emulating Full Duplex (FD) transmissions between two or more devices by way of out-of-band Full Duplex communication, also known as Frequency Division Duplexing-Full Duplex (FDD-FD) communication. FD communication refers to a wireless communication device being able to transmit and receive communications at the same time. In out-of-band FD communication, a first communication channel is used for transmitting a first communication in one direction and a second communication channel is used for simultaneously transmitting a second communication in the reverse direction. Examples relate to management frames for managing channel availability and channel selection for implementing the out-of-band FD communication. An example wi-fi management frame includes an identification of both the first channel for the wireless communication device to transmit on, and the second channel for the wireless communication device to simultaneously receive on.

公开(公告)号：US11277865B2

公开(公告)日：2022-03-15

申请号：US15882439

申请日：2018-01-29

Applicant: Huawei Technologies Co., Ltd.

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

IPC: H04W74/08 ,  H04B7/08 ,  H04W16/14 ,  H04W16/28

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：US11115964B2

公开(公告)日：2021-09-07

申请号：US15043234

申请日：2016-02-12

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yan Xin ,  Osama Aboul-Magd ,  Jung Hoon Suh

IPC: H04W72/04 ,  H04L27/34 ,  H03M13/00 ,  H04L27/26 ,  H04L29/06 ,  H04L27/00 ,  H04L1/00 ,  H04L5/00 ,  H04L27/20 ,  H03M13/27 ,  H04W84/12 ,  H03M13/11 ,  H03M13/29

Abstract: A system and method of auto-detection of WLAN packets includes transmitting in a 60 GHz frequency band a wireless packet comprising a first header, a second header, a payload, and a training field, the first header carrying a plurality of bits, a logical value of a subset of the plurality of bits in the first header indicating the presence of the second header in the wireless packet.

公开(公告)号：US09992000B2

公开(公告)日：2018-06-05

申请号：US15010717

申请日：2016-01-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jung Hoon Suh ,  Yan Xin ,  Osama Aboul-Magd ,  Sheng Sun

IPC: H04L5/00 ,  H04L27/26

CPC classification number: H04L5/005 ,  H04L1/0059 ,  H04L1/0068 ,  H04L1/08 ,  H04L27/2613

Abstract: An aspect of the disclosure provides a wireless frame transmission method. Such a method includes duplicating a preamble in the frequency domain to form at least one duplicate preamble, each preamble having multiple fields. The method further includes puncturing at least one of the preamble fields in the preamble with a first puncturing pattern and puncturing corresponding preamble fields in the at least one duplicate preamble with at least one additional puncturing pattern. The method further includes transmitting a frame including the preamble, the at least one duplicate preamble and a payload. In some embodiments the preamble and the duplicate preambles are each at different frequencies.

公开(公告)号：US20170288935A1

公开(公告)日：2017-10-05

申请号：US15095787

申请日：2016-04-11

Applicant: Huawei Technologies Co., Ltd.

Inventor： Guido Montorsi ,  Sergio Benedetto ,  Yan Xin ,  Min Yan

IPC: H04L27/36 ,  H04B1/02

CPC classification number: H04L27/36 ,  H04B1/02

Abstract: Methods and apparatus for facilitating wireless communication using digital Quadrature Amplitude Modulation are disclosed. A mapping module electronic component of a wireless communication device utilizes a signal constellation for quadrature modulating a signal for transmission or quadrature demodulating a received signal. The signal constellation includes multiple constellation symbols and associated bit sequences. Specific signal constellations are disclosed. The signal constellations may be obtained through an optimization procedure which accounts for both phase noise and power amplifier nonlinearity.

公开(公告)号：US20170257835A1

公开(公告)日：2017-09-07

申请号：US15061831

申请日：2016-03-04

Applicant: Huawei Technologies Co., Ltd.

Inventor： Tao Wu ,  Yan Xin ,  Min Yan ,  Sheng Sun

IPC: H04W52/52 ,  H04L5/00

CPC classification number: H04W52/52 ,  H04L5/005

Abstract: A method is described for providing extended wireless coverage. The method includes transmitting, by a station (STA), at least a first frame including one or more short training fields (STFs) and a legacy STF, each of the one or more STFs carrying a sequence of symbols that is orthogonal to a sequence of symbols carried by the legacy STF.