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公开(公告)号：US12068808B2
公开(公告)日：2024-08-20
申请号：US18156757
申请日：2023-01-19
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Yunfeng Sun , Qingtian Xue , Wei Yu , Min Wen , Gang Wei , Qunfang Lou
IPC: H04B7/024
CPC classification number: H04B7/024
Abstract: Embodiments of this application provide a data sending method, an apparatus, a device, and a readable storage medium. A server determines a first transmission point from a coordinated set, and determines a first downlink sending weight of the first transmission point. Then, the server determines a second downlink sending weight of a second transmission point based on the first downlink sending weight, and sends the second downlink sending weight to the second transmission point. When sending a data stream to an electronic device, the second transmission point determines a downlink sending weight corresponding to the data stream from a matrix, weights the data stream, and sends the weighted data stream to the electronic device.
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公开(公告)号：US10860447B2
公开(公告)日：2020-12-08
申请号：US16455087
申请日：2019-06-27
Applicant: Huawei Technologies Co., Ltd.
Inventor： Wei Yu , Huijun Liu
Abstract: A database cluster architecture based on dual port solid state disk (SSD) is provided. The database cluster includes a plurality of nodes and a plurality of dual port solid state disks (SSDs). Each dual port SSD of the plurality of dual port SSDs is connected to a unique pair of nodes and each node in the unique pair of nodes is connected to a unique pair of dual port SSDs. A first node of the plurality of nodes writes a transaction log to a first dual port SSD, a second node connected to the first dual port SSD acquires the transaction log from the first dual port SSD and operates a database process to recover data according to the transaction log when the first node crashes.
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公开(公告)号：US10379977B2
公开(公告)日：2019-08-13
申请号：US15365728
申请日：2016-11-30
Applicant: Huawei Technologies Co., Ltd.
Inventor： Wei Yu , Huijun Liu
Abstract: The present disclosure provides a data management method for a database cluster including a first dual port SSD, a second dual port SSD, a first node, a second node, and a third node, where the first dual port SSD is connected to the first node and the second node, and the second dual port SSD is connected to the second node and the third node; and the first node writes a transaction log to the first dual port SSD, when the first node crashes, the second node acquires the transaction log from the first dual port SSD, and operates, according to the transaction log, data that is stored in the first node, so that, the second node or the third node can use a dual port SSD to read log information of the crashed node, and replace the first node to provide a service externally.
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Patent Agency Ranking
公开(公告)号：US09998190B2
公开(公告)日：2018-06-12
申请号：US14869443
申请日：2015-09-29
Inventor： Seyed Arvin Ayoughi , Wei Yu , Mohammadhadi Baligh
IPC: H04B7/06 , H04B7/026 , H04W16/28 , H04B7/0413 , H04W88/04
CPC classification number: H04B7/0617 , H04B7/026 , H04B7/0413 , H04W16/28 , H04W88/04
Abstract: System and method embodiments are provided for interference mitigation and signal enhancement in downlink wireless communications for MIMO systems with device-to-device communications across cooperating user terminals. In an embodiment, a network controller initializes a transmit covariance for beam-forming a transmit signal of the MIMO transmission from a base-station to a destination terminal and a relay terminal, and initializes a quantization noise covariance used for compressing a relay signal from the relay terminal to the destination. The transmit covariance and the quantization noise covariance are initialized in accordance with known channel state information and with statistics of noise and interference for transmit and relay channels. The transmit covariance and the quantization noise covariance are then jointly optimized using an iterative algorithm in accordance with a capacity constraint on a relay link between the relay terminal and the destination terminal and a transmit signal power constraint of the base-station.
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公开(公告)号：US20160239542A1
公开(公告)日：2016-08-18
申请号：US15136472
申请日：2016-04-22
Applicant: Huawei Technologies Co., Ltd.
Inventor： Wei Yu , Jijun Wen , Huijun Liu
CPC classification number: G06F16/24542 , H04L67/2842
Abstract: A method, apparatus, and system for storing an execution plan, and relate to the field of databases, which may improve a cache hit rate of an execution plan and reduce system overheads. The method includes sending, by the client, a structured query language (SQL) request and generated location information to the database server, and according to the received SQL request and the received location information, generating and executing, by the database server, an execution plan corresponding to the SQL request, and saving the execution plan to a cache indicated by the location information. The location information may indicate a location of a cache of a client or a cache of a database server.
Abstract translation: 一种用于存储执行计划并涉及数据库领域的方法，装置和系统，其可以提高执行计划的高速缓存命中率并减少系统开销。 该方法包括由客户端向数据库服务器发送结构化查询语言（SQL）请求和生成的位置信息，并且根据接收的SQL请求和接收的位置信息，由数据库服务器生成和执行执行 计划对应于SQL请求，并将执行计划保存到由位置信息指示的高速缓存。 位置信息可以指示客户机的高速缓存或数据库服务器的高速缓存的位置。
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公开(公告)号：US20150254264A1
公开(公告)日：2015-09-10
申请号：US14721600
申请日：2015-05-26
Applicant: Huawei Technologies Co., Ltd.
Inventor： Wei Yu , Huijun Liu , Yuanyuan Nie
CPC classification number: G06F17/30097 , G06F11/1469 , G06F17/30 , G06F17/30109 , G06F17/30368 , G06F17/30371 , G06F17/30575 , G06F2201/80
Abstract: A method for recording a transaction log, and a database engine, and pertains to the field of database technologies. The method includes receiving an structured query language (SQL) request; modifying, according to the SQL request, a data page corresponding to the SQL request; generating a corresponding transaction log for the modifying; partitioning the transaction log to obtain a plurality of log segments; and writing the plurality of log segments into a plurality of log buffers, and writing the log segments in the plurality of log buffers into a log file in parallel. According to the present invention, not only lock granularities of the log buffers of the transaction log are reduced, but also a speed at which a log file is written into a magnetic disk is greatly increased, thereby improving performance of a database system and enhancing user experience.
Abstract translation: 用于记录事务日志的方法和数据库引擎，并且涉及数据库技术领域。 该方法包括接收结构化查询语言（SQL）请求; 根据SQL请求修改与SQL请求对应的数据页; 生成相应的事务日志进行修改; 划分事务日志以获得多个日志段; 以及将所述多个日志段写入到多个日志缓冲器中，并且将所述多个日志缓冲器中的日志段并行地写入日志文件。 根据本发明，不仅减少了事务日志的日志缓冲器的粒度，而且大大增加了将日志文件写入磁盘的速度，从而提高了数据库系统的性能并增强了用户 经验。
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公开(公告)号：US09189487B2
公开(公告)日：2015-11-17
申请号：US14721600
申请日：2015-05-26
Applicant: Huawei Technologies Co., Ltd.
Inventor： Wei Yu , Huijun Liu , Yuanyuan Nie
CPC classification number: G06F17/30097 , G06F11/1469 , G06F17/30 , G06F17/30109 , G06F17/30368 , G06F17/30371 , G06F17/30575 , G06F2201/80
Abstract: A method for recording a transaction log, and a database engine, and pertains to the field of database technologies. The method includes receiving an structured query language (SQL) request; modifying, according to the SQL request, a data page corresponding to the SQL request; generating a corresponding transaction log for the modifying; partitioning the transaction log to obtain a plurality of log segments; and writing the plurality of log segments into a plurality of log buffers, and writing the log segments in the plurality of log buffers into a log file in parallel. According to the present invention, not only lock granularities of the log buffers of the transaction log are reduced, but also a speed at which a log file is written into a magnetic disk is greatly increased, thereby improving performance of a database system and enhancing user experience.
Abstract translation: 用于记录事务日志的方法和数据库引擎，并且涉及数据库技术领域。 该方法包括接收结构化查询语言（SQL）请求; 根据SQL请求修改与SQL请求对应的数据页; 生成相应的事务日志进行修改; 划分事务日志以获得多个日志段; 以及将所述多个日志段写入到多个日志缓冲器中，并且将所述多个日志缓冲器中的日志段并行地写入日志文件。 根据本发明，不仅减少了事务日志的日志缓冲器的粒度，而且大大增加了将日志文件写入磁盘的速度，从而提高了数据库系统的性能并增强了用户 经验。
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8.发明申请System and Method for Joint MIMO Transmission and Compression for Interference Mitigation with Cooperative Relay 有权用于联合MIMO传输和压缩的系统和方法，用于协同中继的干扰减轻公开(公告)号：US20160094285A1
公开(公告)日：2016-03-31
申请号：US14869443
申请日：2015-09-29
Inventor： Seyed Arvin Ayoughi , Wei Yu , Mohammadhadi Baligh
CPC classification number: H04B7/0617 , H04B7/026 , H04B7/0413 , H04W16/28 , H04W88/04
Abstract: System and method embodiments are provided for interference mitigation and signal enhancement in downlink wireless communications for MIMO systems with device-to-device communications across cooperating user terminals. In an embodiment, a network controller initializes a transmit covariance for beam-forming a transmit signal of the MIMO transmission from a base-station to a destination terminal and a relay terminal, and initializes a quantization noise covariance used for compressing a relay signal from the relay terminal to the destination. The transmit covariance and the quantization noise covariance are initialized in accordance with known channel state information and with statistics of noise and interference for transmit and relay channels. The transmit covariance and the quantization noise covariance are then jointly optimized using an iterative algorithm in accordance with a capacity constraint on a relay link between the relay terminal and the destination terminal and a transmit signal power constraint of the base-station.
Abstract translation: 提供系统和方法实施例用于在跨越协作用户终端的设备到设备通信的MIMO系统的下行链路无线通信中的干扰减轻和信号增强。 在一个实施例中，网络控制器初始化用于波束形成从基站到目的地终端和中继终端的MIMO传输的发射信号的发射协方差，并且初始化用于压缩来自基站的中继信号的量化噪声协方差 中继终端到目的地。 发射协方差和量化噪声协方差根据已知信道状态信息和发射和中继信道的噪声和干扰统计信息进行初始化。 然后使用根据中继站和目的地终端之间的中继链路上的容量约束的迭代算法和基站的发射信号功率约束来共同优化发射协方差和量化噪声协方差。
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