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公开(公告)号：US20170141888A1
公开(公告)日：2017-05-18
申请号：US15418462
申请日：2017-01-27
Applicant: Huawei Technologies Co., Ltd.
CPC classification number: H04L5/0023 , H04B1/707 , H04L25/0204 , H04L27/2634 , H04W84/12
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.
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公开(公告)号：US20170013619A1
公开(公告)日：2017-01-12
申请号：US15270390
申请日：2016-09-20
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
CPC classification number: H04W72/0446 , H04L5/0007 , H04W74/006 , H04W88/02 , H04W88/08
Abstract: A data transmission method and a station are provided. In the method, the station receives an indication frame sent by an access point, where the indication frame is used to allocate a specified random contention channel. The station sends data over the specified random contention channel according to the indication frame and a random probability.
Abstract translation: 提供数据传输方法和站。 在该方法中，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。 该站根据指示帧和随机概率，通过指定的随机争用信道发送数据。
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公开(公告)号：US20160381703A1
公开(公告)日：2016-12-29
申请号：US15258986
申请日：2016-09-07
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
CPC classification number: H04W74/02 , H04L1/1887 , H04L5/0055 , H04L5/14 , H04L27/2607 , H04W72/14 , H04W74/04 , H04W74/0816 , H04W84/12
Abstract: Embodiments of the present invention provide a data transmission method, a sender device, and a receiver device. The method includes: sending, by a sender device, to-be-transmitted data to a receiver device according to a transmission policy; and receiving, by the sender device, feedback information sent by the receiver device. In this process, for to-be-transmitted data after a guard interval in a last radio frame of any scheduling window, the sender device sends the to-be-transmitted data according to the transmission policy, so that no timeout occurs when the sender device is waiting for the feedback information, thereby achieving an objective of improving data transmission efficiency.
Abstract translation: 本发明的实施例提供一种数据传输方法，发送方装置和接收装置。 该方法包括：根据传输策略，由发送者设备发送要发送的数据到接收方设备; 以及由所述发送者设备接收由所述接收机设备发送的反馈信息。 在该过程中，对于任何调度窗口的最后一个无线帧中的保护间隔之后的待发送数据，发送方设备根据传输策略发送待发送的数据，以便当发送方 设备正在等待反馈信息，从而实现提高数据传输效率的目标。
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34.发明申请Method for uplink multiuser data transmission and system for uplink multiuser multiple input multiple output 审中-公开上行多用户数据传输方法及上行多用户多输入多输出系统公开(公告)号：US20160156497A1
公开(公告)日：2016-06-02
申请号：US14757735
申请日：2015-12-23
Applicant: Huawei Technologies Co., Ltd.
CPC classification number: H04L27/2695 , H04B7/0452 , H04B7/066 , H04B7/0848 , H04L25/0204 , H04L25/0218 , H04L25/0224 , H04L27/2602 , H04L27/2649
Abstract: The embodiments of the present disclosure disclose a method for uplink multiuser data transmission and a system for uplink multiuser multiple input multiple output. The method includes: sending, by an access point AP, indication information to at least two stations STAs, wherein the indication information is used for indicating that the at least two STAs perform an uplink multiuser data transmission; receiving, by the AP, uplink data sent by the at least two STAs through channels from the at least two STAs to the AP, respectively; and demodulating, by the AP, the uplink data sent by the at least two STAs using receiving beams corresponding to pre-estimated channels from the at least two STAs to the AP, respectively. According to the embodiments of the present disclosure, the AP receives the uplink data from multiple STAs through different channels from the STAs to the AP respectively, and demodulates data using the receiving beams corresponding to the channels respectively, thereby realizing that the ap perform separation and demodulation of the uplink data sent by multiple STAs and realizing the uplink multiuser data transmission.
Abstract translation: 本公开的实施例公开了一种用于上行链路多用户数据传输的方法和用于上行链路多用户多输入多输出的系统。 该方法包括：由接入点AP向至少两个站STA发送指示信息，其中所述指示信息用于指示所述至少两个STA执行上行链路多用户数据传输; 由AP接收由至少两个STA通过从至少两个STA到AP的信道发送的上行链路数据; 以及由所述AP解调由所述至少两个STA发送的上行链路数据，所述上行链路数据使用对应于从所述至少两个STA到所述AP的预先估计的信道的接收波束。 根据本公开的实施例，AP分别通过不同信道从STA接收来自多个STA的上行链路数据，并分别使用对应于信道的接收波束解调数据，从而实现ap执行分离， 解调由多个STA发送的上行数据，实现上行多用户数据传输。
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Patent Agency Ranking
35.发明申请公开(公告)号：US20160149671A1
公开(公告)日：2016-05-26
申请号：US15012561
申请日：2016-02-01
Applicant: Huawei Technologies Co., Ltd.
CPC classification number: H04L1/1621 , H04B7/0452 , H04L1/1685 , H04L67/2852 , H04L2001/0092 , H04L2001/0093
Abstract: Embodiments of the present invention provide a communication method, apparatus and system for multiple access points. The method includes: simultaneously sending, by a primary sending terminal and a secondary sending terminal, data corresponding to each receiving terminal to each receiving terminal through a shared channel; sending, by the primary sending terminal, BAR corresponding to the data to each receiving terminal; receiving, by the primary sending terminal, BA corresponding to the BAR and sent by each receiving terminal; and if the BA indicates that the data are correctly received by each receiving terminal, clearing the data cached in the primary sending terminal, and if the BA indicates that the data is not correctly received by each receiving terminal, retransmitting data which is not correctly received, and clearing correctly received data cached in the primary sending terminal.
Abstract translation: 本发明的实施例提供了一种用于多个接入点的通信方法，装置和系统。 该方法包括：由主发送终端和次发送终端通过共享信道同时向每个接收终端发送与每个接收终端对应的数据; 由主发送终端向每个接收终端发送与数据相对应的BAR; 由主发送终端接收与BAR相对应的并由每个接收终端发送的BA; 并且如果BA指示每个接收终端正确地接收到数据，则清除缓存在主发送终端中的数据，并且如果BA指示每个接收终端没有正确地接收到数据，则重传未正确接收的数据 并清除在主发送终端中缓存的正确接收的数据。
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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
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。
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公开(公告)号：US20160081098A1
公开(公告)日：2016-03-17
申请号：US14946428
申请日：2015-11-19
Applicant: Huawei Technologies Co., Ltd.
CPC classification number: H04W72/08 , H04W72/0453 , H04W74/0808
Abstract: A channel competition method, includes: a first device detecting whether a target channel contains an idle sub-channel which is in an idle state or not, and if so, sending a request frame to a second device over a target sub-channel, wherein the target sub-channel is at least one sub-channel which is contained in the idle sub-channel; and when the first device receives a response frame sent by the second device, the first device determining that the competition for the target sub-channel is successful, wherein the response frame is a response frame issued by the second device to the request frame. Correspondingly, further provided is a corresponding device. The embodiments of the present application can improve the spectrum efficiency of a network system.
Abstract translation: 信道竞争方法包括：检测目标信道是否包含空闲状态的空闲子信道的第一设备，如果是，则通过目标子信道向第二设备发送请求帧，其中， 目标子信道是包含在空闲子信道中的至少一个子信道; 并且当所述第一设备接收到由所述第二设备发送的响应帧时，所述第一设备确定所述目标子信道的竞争是成功的，其中所述响应帧是由所述第二设备向所述请求帧发布的响应帧。 相应地，进一步提供了相应的装置。 本申请的实施例可以提高网络系统的频谱效率。
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38.发明申请METHOD, ACCESS POINT, SERVER AND STATION USED FOR COORDINATED TRANSMISSION 审中-公开方法，访问点，用于协调传输的服务器和站点公开(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
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。
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公开(公告)号：US20140126658A1
公开(公告)日：2014-05-08
申请号：US14155114
申请日：2014-01-14
Applicant: Huawei Technologies Co., Ltd.
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 transmitting device, a link adaptation feedback frame sent by a communication peer end, where the link adaptation feedback frame includes a modulation and coding scheme feedback request sequence identifier (MSI), where the MSI is configured to indicate space-time block coding type information; determining, according to the space-time block coding type indication information, use information about use of space-time block coding by a data frame related to the link adaptation feedback frame, and selecting, according to the use information, a space-time stream, modulation and coding scheme used when the transmitting device sends a data frame.
Abstract translation: 本公开的实施例提供了一种链路自适应反馈方法，包括：由发送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反馈请求序列标识符 MSI），其中MSI被配置为指示空时块编码类型信息; 根据空时块编码类型指示信息，根据与链路自适应反馈帧相关的数据帧，使用关于使用空时块编码的信息，根据使用信息，选择时空流 ，当发送设备发送数据帧时使用的调制和编码方案。
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