公开(公告)号：US20170170933A1

公开(公告)日：2017-06-15

申请号：US15443360

申请日：2017-02-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jiayin ZHANG ,  Jun ZHU

IPC: H04L5/00 ,  H04W40/02 ,  H04W72/04

CPC classification number: H04L5/0007 ,  H04L1/02 ,  H04L1/06 ,  H04L25/022 ,  H04L25/0224 ,  H04L27/2613 ,  H04L27/2626 ,  H04L27/2647 ,  H04W40/02 ,  H04W72/0446 ,  H04W72/0453

Abstract: This application provides a data sending method, a channel estimation method, and apparatuses thereof. The data sending method includes: performing Fourier transform on a first time domain sequence to obtain a first frequency domain sequence; determining, according to a maximum multipath delay of a system transmission channel, bandwidth of the channel, and a subcarrier quantity NFFT, a maximum quantity of spatial flows that can be supported by a single symbol; determining a cyclic shift parameter corresponding to each spatial flow; and obtaining a long training field LTF according to the first frequency domain sequence, the maximum quantity of spatial flows, and the cyclic shift parameter; and sending the LTF and indication information to each receive end, where the indication information includes a number of a spatial flow allocated to each receive end.

公开(公告)号：US20170105229A1

公开(公告)日：2017-04-13

申请号：US15387265

申请日：2016-12-21

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jun LUO ,  Yingpei LIN ,  Jiayin ZHANG ,  Xun YANG

IPC: H04W72/12 ,  H04W72/04

Abstract: A resource indication processing method, which is applied to a wireless local area network that uses an OFDMA technology, where the method includes sending or receiving a frame including a resource indication field, where the resource indication field includes an identifier of a user, and resource block information and modulation and coding scheme MCS information that are corresponding to the identifier of the user.

公开(公告)号：US20160094325A1

公开(公告)日：2016-03-31

申请号：US14955254

申请日：2015-12-01

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yalin LIU ,  Jiayin ZHANG ,  Yi LUO

IPC: H04L5/00 ,  H04L27/26

CPC classification number: H04L5/0048 ,  H04L5/005 ,  H04L23/02 ,  H04L25/0226 ,  H04L27/2613

Abstract: A data transmission method and apparatus are provided, which includes: determining, by a transmitting device, a long training sequence set; determining at least one receiving device set, where the receiving device set includes at least one receiving device in a communications system; determining a first mapping relationship, where the first mapping relationship is a mapping relationship between the at least one receiving device set and at least one set-use long training sequence in the long training sequence set; determining, according to a target receiving device set and the first mapping relationship, a target set-use long training sequence corresponding to the target receiving device set, and performing encapsulation processing on first data to generate a first data packet, where a long training sequence field in a physical layer of the first data packet carries a first long training sequence symbol.

Abstract translation: 提供了一种数据传输方法和装置，其包括：由发送装置确定长训练序列集; 确定至少一个接收设备组，其中所述接收设备组包括通信系统中的至少一个接收设备; 确定第一映射关系，其中所述第一映射关系是所述长训练序列集中的所述至少一个接收设备组与至少一个组合使用长训练序列之间的映射关系; 根据目标接收装置集合和第一映射关系确定与目标接收装置集相对应的目标组合使用长训练序列，并对第一数据执行封装处理以生成第一数据分组，其中长训练序列 第一数据分组的物理层中的字段携带第一长训练序列符号。

公开(公告)号：US20160080124A1

公开(公告)日：2016-03-17

申请号：US14932619

申请日：2015-11-04

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yongming LIANG ,  Jiayin ZHANG ,  Yi LUO

IPC: H04L5/00 ,  H04B7/02 ,  H04W72/08 ,  H04W24/10 ,  H04W72/12

CPC classification number: H04L5/0035 ,  H04B7/024 ,  H04W24/10 ,  H04W72/085 ,  H04W72/1278

Abstract: The present disclosure discloses a method, an AP, a server, and an STA used for coordinated transmission. The method includes: an AP receives an uplink preamble training sequence transmitted by an STA; the AP determines uplink quality information according to the uplink preamble training sequence; and the AP transmits the uplink quality information to a server, to enable the server to determine a downlink coordinated transmission set according to the uplink quality information. The method, the AP, the server, and the STA used for coordinated transmission according to embodiments of the present disclosure can realize coordinated transmission among multiple APs, and thus data throughput can be improved.

Abstract translation: 本公开公开了一种用于协调传输的方法，AP，服务器和STA。 该方法包括：AP接收STA发送的上行链路前同步码训练序列; AP根据上行链路前导码训练序列确定上行链路质量信息; 并且AP向服务器发送上行链路质量信息，以使得服务器能够根据上行链路质量信息确定下行链路协调传输集合。 根据本公开的实施例的用于协同传输的方法，AP，服务器和STA可以实现多个AP之间的协调传输，从而可以提高数据吞吐量。

公开(公告)号：US20230199777A1

公开(公告)日：2023-06-22

申请号：US18169918

申请日：2023-02-16

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Qiong JIA ,  Jiayin ZHANG ,  Weiwei FAN

IPC: H04W72/21 ,  H04W72/0446 ,  H04W72/0453

CPC classification number: H04W72/21 ,  H04W72/0446 ,  H04W72/0453

Abstract: The technology of this application relates to a method for transmitting uplink control information. The method includes a network device sending first signaling in a first cell to a terminal device. The terminal device may send uplink control information in a second cell based on the first signaling. The uplink control information may be uplink control information corresponding to the first cell and/or uplink control information corresponding to a third cell. The third cell is a cell other than the first cell and the second cell. According to the method provided in this application, a cell for sending the uplink control information may be dynamically configured for the terminal device, and can improve communication efficiency.

公开(公告)号：US20230059567A1

公开(公告)日：2023-02-23

申请号：US17971173

申请日：2022-10-21

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jiayin ZHANG ,  Chixiang MA ,  Jun LUO

IPC: H04W74/00

Abstract: The present disclosure relates to transmission methods and apparatuses in Wireless Local Area Networks (WLANs). One example method for indicating transmission opportunity (TXOP) duration in a wireless communication system, comprising generating, by a TXOP holder, a physical layer protocol data unit (PPDU), where the High Efficiency Signal field A (HE-SIGA) in the PPDU carries a TXOP duration field, the TXOP duration field is used to indicate the remaining time for using the channel by the station to other stations, the TXOP duration field includes a first part which is used to indicate the granularity used, and a second part which is used to indicate the TXOP duration using the granularity indicated by the first part, and sending the generated PPDU.

公开(公告)号：US20220210694A1

公开(公告)日：2022-06-30

申请号：US17549447

申请日：2021-12-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jiayin ZHANG ,  Jun LUO ,  Phillip BARBER

IPC: H04W28/06 ,  H04B7/26 ,  H04W52/02 ,  H04L27/26 ,  H04L69/22

Abstract: Embodiments of the present invention relate to the field of wireless communication, and in particular, to a wireless local area network data transmission method and apparatus, which are used for improving data transmission efficiency. The method of the embodiments of the present invention includes: carrying, by a control domain of a PLCP header domain in a PPDU constructed by an AP, identifier information of the AP, duration information, and an identifier of at least one STA, so that a STA may obtain the identifier information of the AP, the duration information, and the identifier of at least one STA by parsing only the control domain of the PLCP header domain.

公开(公告)号：US20220015147A1

公开(公告)日：2022-01-13

申请号：US17487216

申请日：2021-09-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jiayin ZHANG

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

Abstract: This application provides a control information transmission method, including: A terminal device receives a first control message on a first resource, where the first control message carries a transmission bandwidth indication field, the transmission bandwidth indication field is a first value, and the first value indicates that a current transmission bandwidth indication is an invalid indication. The terminal device receives a second control message on a second resource, where the second control message carries the transmission bandwidth indication field, the transmission bandwidth indication field is a second value, and the second value indicates an actual transmission bandwidth. The first resource and the second resource are in a same channel occupancy time COT. The terminal device transmits data on the actual transmission bandwidth.

公开(公告)号：US20210360697A1

公开(公告)日：2021-11-18

申请号：US17385570

申请日：2021-07-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ji WU ,  Jiayin ZHANG ,  Qiong JIA

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

Abstract: In a RA-RNTI processing method, after an LBT success, NR-U UE randomly selects a preamble preamble, and selects an available random access time-frequency resource RO; sends the preamble on the selected RO; and generates a RA-RNTI based on the RO. Specifically, a first indicator sent by a network apparatus may be received, where the first indicator is used to indicate time information or position information of a RAR; and the NR-U UE detects a PDCCH only within a time window (the RAR) indicated by the first indicator, where the PDCCH is scrambled by the gNB by using a same RA-RNTI.

公开(公告)号：US20210360617A1

公开(公告)日：2021-11-18

申请号：US17390616

申请日：2021-07-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Qiong JIA ,  Jiayin ZHANG ,  Ji WU

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

Abstract: A signal transmission method and apparatus are described. A network device indicates an uplink transmission resource to a terminal by using first indication information, and the terminal transmits a PUCCH and a first signal on the uplink transmission resource indicated by the first indication information. The uplink transmission resource is within an unlicensed frequency band, and the first signal includes one or more of a PUSCH, an SRS, and a PRACH. Thus, if resources required for PUCCH transmission are fewer than resources included in one interlace in the unlicensed frequency band, a remaining resource in the interlace may be used to transmit the first signal.