公开(公告)号：US20200022024A1

公开(公告)日：2020-01-16

申请号：US16516676

申请日：2019-07-19

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Le LIU ,  Yi LUO ,  Guido MONTORSI ,  Sergio BENEDETTO

IPC: H04W28/06 ,  H04L27/26

Abstract: Embodiments of the present invention disclose a frame transmission method for a wireless local area network and a wireless local area network apparatus, and relate to the field of communications technologies. According to the present invention, in a frame transmission process in a WLAN, a frame sent by a wireless local area network WLAN apparatus is received, and the frame of a particular standard is recognized by detecting a user common signal field included in the frame, so that backward compatibility of a WLAN apparatus is implemented, and hybrid networking of WLAN apparatuses of different standards can be supported, thereby improving flexibility of network deployment, and reducing complexity of networking.

公开(公告)号：US20170006636A1

公开(公告)日：2017-01-05

申请号：US15267061

申请日：2016-09-15

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yunbo LI ,  Yi LUO ,  Peter LOC

IPC: H04W74/08

CPC classification number: H04W74/0816 ,  H04W74/08 ,  H04W84/12

Abstract: Embodiments of the present disclosure relate to a multi-channel access method and apparatus. A first device performs data transmission with a second device on a first reserved channel, and the method includes: identifying, by the first device, whether a non-reserved channel except the first reserved channel is in an idle state; triggering, by the first device, a backoff procedure when the non-reserved channel is in the idle state; sending, by the first device, a channel reservation frame on the non-reserved channel after the backoff procedure ends, where the channel reservation frame is used to enable the first device to use the non-reserved channel as a second reserved channel; and performing, by the first device, data transmission with the second device on the first reserved channel and the second reserved channel.

Abstract translation: 本公开的实施例涉及多信道接入方法和装置。 第一设备在第一保留信道上与第二设备执行数据传输，并且所述方法包括：由所述第一设备识别除第一保留信道之外的非保留信道是否处于空闲状态; 当非预留信道处于空闲状态时，由第一设备触发退避过程; 在所述退避过程结束之后，由所述第一设备发送所述非保留信道上的信道预留帧，其中所述信道预留帧用于使得所述第一设备能够使用所述非预留信道作为第二保留信道; 以及由所述第一设备在所述第一保留信道和所述第二保留信道上执行与所述第二设备的数据传输。

公开(公告)号：US20160285649A1

公开(公告)日：2016-09-29

申请号：US15180403

申请日：2016-06-13

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yi LUO ,  Yunbo LI ,  Lianbo ZHANG

IPC: H04L12/64 ,  H04W24/08 ,  H04W74/08

CPC classification number: H04L12/6418 ,  H04W24/08 ,  H04W74/0833

Abstract: The present invention provides a data transmission method. In the method of the present invention, a station receives an indication frame sent by an access point, where the indication frame is used for allocating a designated random contention channel; a channel state of the designated random contention channel is sensed according to the indication frame; and the station sends data on the designated random contention channel after it is detected that the designated random contention channel is in an idle state. Because in the method of the present invention, a designated random contention channel is allocated to a station, the station can send data on the designated random contention channel, contention among stations is reduced and a time for a station to be connected to a random contention channel is reduced.

Abstract translation: 本发明提供一种数据传输方法。 在本发明的方法中，站接收由接入点发送的指示帧，其中指示帧用于分配指定的随机争用信道; 根据指示帧感测指定的随机争用信道的信道状态; 在检测到指定的随机争用信道处于空闲状态之后，站在指定的随机争用信道上发送数据。 因为在本发明的方法中，将指定的随机争用信道分配给站，所以站可以在指定的随机争用信道上发送数据，减少站间的争用，并且将站点连接到随机争用的时间 通道减少。

公开(公告)号：US20160192306A1

公开(公告)日：2016-06-30

申请号：US15065415

申请日：2016-03-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Chixiang MA ,  Yi LUO ,  Xun YANG ,  Yingpei LIN

IPC: H04W56/00 ,  H04W72/04

CPC classification number: H04W56/001 ,  H04W56/00 ,  H04W72/0406 ,  H04W88/08

Abstract: A method for adjusting a timing advance includes: sending an uplink message to an access point, AP, and receiving a downlink message returned by the AP; according to the moment when the uplink message is sent, the moment when the downlink message returned by the AP is received and the fixed time when the downlink message is returned by the AP, obtaining time alignment information; and according to the time alignment information, adjusting the amount of time by which a signal is sent in advance.

Abstract translation: 一种用于调整定时提前的方法包括：向接入点发送上行链路消息，并接收由AP返回的下行消息; 根据发送上行链路消息的时刻，接收到AP返回的下行链路消息的时刻和AP返回下行链路消息的固定时间，获取时间对齐信息; 并根据时间对准信息，调整预先发送信号的时间量。

公开(公告)号：US20200267677A1

公开(公告)日：2020-08-20

申请号：US16798212

申请日：2020-02-21

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xun YANG ,  Yi LUO

IPC: H04W56/00

Abstract: The present disclosure provide a transmission method and a device, which relate to the technical field of communications and reduce overhead and improve work efficiency in an application of cooperative transmission in aspects of synchronization, sharing of information such as data and the like, obtaining of channel information and data transmission. Meanwhile application scenarios may also be extended. The method specifically includes: obtaining, by an access point AP, a parameter value, wherein the parameter value is a frequency difference between a crystal oscillator frequency of the AP and a reference crystal oscillator frequency of a reference AP or a delay difference of the AP with respect to the reference AP; compensating, by the AP, a phase difference or a time difference according to the parameter value when both of the AP and the reference AP send data. The present disclosure is applied to an application of a cooperative transmission.

公开(公告)号：US20190268115A1

公开(公告)日：2019-08-29

申请号：US16412117

申请日：2019-05-14

Applicant: Huawei Technologies Co., Ltd.

Inventor： Le LIU ,  Zhou LAN ,  Yi LUO

IPC: H04L5/00 ,  H04L27/26 ,  H04W84/12 ,  H04B1/707 ,  H04L25/02

Abstract: A transmission device includes: an acquiring unit acquires LTF parameters, and acquires a start position I of allocated subcarriers, where the LTF parameters include a frequency domain transform parameter and a time domain transform parameter that are required for generating an LTF sequence; a frequency domain transform unit performs, according to the frequency domain transform parameter and the start position I, a frequency domain transform on an LTF basic sequence to obtain an LTF symbol; a time domain transform unit performs, according to the time domain transform parameter, a time domain transform on the LTF symbol to obtain the LTF sequence; and a sending unit adds the LTF sequence to a first data frame, and sends the first data frame to a second device, so that the second device determines the LTF basic sequence according to the LTF sequence and performs channel estimation according to the LTF basic sequence.

公开(公告)号：US20190150168A1

公开(公告)日：2019-05-16

申请号：US16250451

申请日：2019-01-17

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xun YANG ,  Yunbo LI ,  Yi LUO

IPC: H04W72/12

Abstract: A method for scheduled stations is provided. The method includes: receiving identification information of a neighbor station of a target station reported by the target station; treating, based on pre-acquired information of a basic service set to which the target station belongs and the identification information, each station except the neighbor station among the stations included in the basic service set as a latent hidden station of the target station; and scheduling, based on a transmission strategy currently used by the target station, a scheduled station corresponding to the transmission strategy to perform data transmission with the target station in a target mode, wherein the scheduled station corresponding to the transmission strategy is the station corresponding to the transmission strategy in a pre-acquired mapping relation between the transmission strategy and the station.

公开(公告)号：US20180295597A1

公开(公告)日：2018-10-11

申请号：US16007618

申请日：2018-06-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xun YANG ,  Yi LUO

IPC: H04W56/00

CPC classification number: H04W56/0035 ,  H04W56/00 ,  H04W56/001 ,  H04W56/0015

Abstract: The present disclosure provide a transmission method and a device, which relate to the technical field of communications and reduce overhead and improve work efficiency in an application of cooperative transmission in aspects of synchronization, sharing of information such as data and the like, obtaining of channel information and data transmission. Meanwhile application scenarios may also be extended. The method specifically includes: obtaining, by an access point AP, a parameter value, wherein the parameter value is a frequency difference between a crystal oscillator frequency of the AP and a reference crystal oscillator frequency of a reference AP or a delay difference of the AP with respect to the reference AP; compensating, by the AP, a phase difference or a time difference according to the parameter value when both of the AP and the reference AP send data. The present disclosure is applied to an application of a cooperative transmission.

公开(公告)号：US20170070906A1

公开(公告)日：2017-03-09

申请号：US15357816

申请日：2016-11-21

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yi LUO ,  Xun YANG ,  Yingpei LIN

IPC: H04W24/10 ,  H04W72/12 ,  H04W76/00 ,  H04L27/26 ,  H04W74/08 ,  H04B7/04 ,  H04J13/00

CPC classification number: H04W24/10 ,  H04B7/0452 ,  H04J13/00 ,  H04L27/2601 ,  H04W72/1205 ,  H04W72/1278 ,  H04W74/002 ,  H04W74/0816 ,  H04W76/40

Abstract: An uplink multi-user multi-input multi-output establishment method includes broadcasting, by a network side device, an uplink data sending announcement; receiving buffer information sent by a terminal that needs to send data, where the buffer information includes at least a sending level and a data sending length of to-be-sent data; determining, according to the buffer information, scheduling information for establishing uplink multi-user multi-input multi-output; and sending, to a terminal that is allowed to send data and selected from the terminal that needs to send data, a clear to send frame that carries the scheduling information, so that the terminal that is allowed to send data sends the to-be-sent data according to the scheduling information. The embodiments of the present disclosure effectively implement uplink multi-user multi-input multi-output establishment, so that signaling interworking is reduced, resource overheads are reduced, and data sending efficiency is improved.

Abstract translation: 上行链路多用户多输入多输出建立方法包括：由网络侧设备广播上行链路数据发送通知; 接收由需要发送数据的终端发送的缓冲器信息，其中缓冲器信息至少包括待发送数据的发送级别和数据发送长度; 根据所述缓冲器信息确定用于建立上行链路多用户多输入多输出的调度信息; 并发送到允许发送数据并从需要发送数据的终端中选择的终端，发送携带调度信息的清除发送帧，使得允许发送数据的终端发送待发送数据， 根据调度信息发送数据。 本公开的实施例有效地实现上行多用户多输入多输出建立，从而降低信令互通，减少资源开销，提高数据发送效率。

公开(公告)号：US20150280858A1

公开(公告)日：2015-10-01

申请号：US14741001

申请日：2015-06-16

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yunbo LI ,  Xun YANG ,  Yi LUO

IPC: H04L1/00 ,  H04B7/04 ,  H04L1/06

CPC classification number: H04L1/0009 ,  H04B7/0417 ,  H04L1/0003 ,  H04L1/0025 ,  H04L1/0028 ,  H04L1/0643 ,  H04L1/0681

Abstract: Embodiments of the present disclosure provide a link adaptation feedback method, including: receiving, by a device, a link adaptation feedback frame sent by a communication peer end, where the link adaptation feedback frame includes a modulation and coding scheme request sequence identifier (MSI), where the MSI is configured to indicate space-time block coding type information.

Abstract translation: 本公开的实施例提供一种链路自适应反馈方法，包括：由设备接收由通信对端发送的链路自适应反馈帧，其中链路自适应反馈帧包括调制和编码方案请求序列标识符（MSI） ，其中MSI被配置为指示空时块编码类型信息。