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1. 发明申请

US20080232340A1 Method and Transmission Unit for Adaptive Coding, Modulation and Transmittion of Data Words in a Wireless Communication System 有权
标题翻译：用于无线通信系统中数据字的自适应编码，调制和发送的方法和传输单元
公开(公告)号：US20080232340A1
公开(公告)日：2008-09-25
申请号：US12092199
申请日：2005-11-04
申请人： Lei Wan , Johan Axnas
发明人： Lei Wan , Johan Axnas
IPC分类号： H04J1/00
CPC分类号： H04L1/0003 , H04L1/0009 , H04L1/007 , H04L1/0071 , H04L1/1819 , H04L2001/0098 , Y02D50/10
摘要： When transmitting data from a transmission unit to a reception unit over a channel in a wireless communication system, it has been observed that there are inherent losses in throughput, especially for a channel experiencing high channel quality variations over its frequency range. To improve the throughput over such a channel, it is proposed to: estimate the quality of each subchannel of a channel, classify the subchannels into a number of quality groups based on the estimated quality, and select a code rate per quality group. This selected code rate per quality group is then used when a data word to be transmitted is coded. Simulations have shown that by grouping the subchannels into a limited number of groups, for example one to four groups depending on the channel quality variation, a high throughput could be achieved with a minimum of signaling cost in the form of extra overhead.
摘要翻译：当通过无线通信系统中的信道将数据从传输单元发送到接收单元时，已经观察到吞吐量存在固有损失，特别是对于在其频率范围内经历高信道质量变化的信道。为了提高这种信道的吞吐量，建议：估计信道的每个子信道的质量，并根据估计的质量将子信道分类成多个质量组，并且选择每个质量组的码率。然后，当要发送的数据字被编码时，每个质量组的该选择的码率被使用。模拟已经表明，通过将子信道分组为有限数量的组，例如根据信道质量变化的一到四组，可以以额外开销的形式以最小的信令成本来实现高吞吐量。

2. 发明申请

US20190234558A1 Leak-proof lubrication system for a power device 审中-公开
公开(公告)号：US20190234558A1
公开(公告)日：2019-08-01
申请号：US16005407
申请日：2018-06-11
申请人： Song Wang , Zhongyi Wang , Ting Wang , Lei Wan , Tao Sun , Yigang Luan
发明人： Song Wang , Zhongyi Wang , Ting Wang , Lei Wan , Tao Sun , Yigang Luan
IPC分类号： F16N29/00 , F16N19/00 , F16N35/00 , F16N7/38
CPC分类号： F16N29/00 , F16N7/385 , F16N19/003 , F16N35/00 , F16N2210/02 , F16N2250/04 , F16N2270/70
摘要： Provided is a leak-proof lubrication system for a power device, comprising an oil supply pump inlet pipe, an oil supply pump, an oil supply pressure gauge, an oil supply pump outlet pipe, an oil supply filter, a lubricating oil, an oil storage tank, an oil return pipe, an storage tank pressure gauge, a vacuum pump intake pipe, a vacuum pump inlet air filter, a vacuum pump and a vacuum pump exhaust pipe. The system employs a negative pressure operation method in which the pressure of the lubrication system is controlled to be lower than the outside ambient pressure, which allows a small amount of air to flow from the outside to the inside of the lubrication system along with the lubricant to return to the storage tank, preventing leakage of the lubricant from connection joints. It is suitable to be used for gas turbines or other high-speed power machines.

3. 发明授权

US08989290B2 Mode switching between SU-MIMO and MU-MIMO 有权
标题翻译： SU-MIMO和MU-MIMO之间的模式切换
公开(公告)号：US08989290B2
公开(公告)日：2015-03-24
申请号：US12666115
申请日：2008-04-03
申请人： George Jöngren , Bo Göransson , Lei Wan
发明人： George Jöngren , Bo Göransson , Lei Wan
IPC分类号： H04L1/02 , H04B7/04 , H04B7/06 , H04W52/54
CPC分类号： H04B7/0452 , H04B7/0469 , H04B7/0486 , H04B7/0689 , H04L5/0048 , H04W52/36 , H04W52/54 , H04W72/042 , H04W88/06 , H04W88/10
摘要： The present invention relates to a method and arrangements in a communication system for Multi User Multiple-Input-Multiple-Output (MU-MIMO) signaling via Multiple-Input-Multiple-Output (MIMO) antennas between a base station and one of a plurality of mobile terminals supporting both Single User and Multi User Multiple-Input-Multiple-Output (SU-MIMO and MU-MIMO) signaling modes. Switching between the modes is supported in the system and the modes have partly shared signaling. SU-MIMO mode signaling which is redundant, i.e. not needed, for MU-MIMO mode signaling is identified. Bits, i.e. data bits, of the identified redundant signaling is re-interpreted or re-defined to comprise signaling information associated with MU-MIMO mode. The signaling information associated with MU-MIMO mode is signaled to the mobile terminal by using the reinterpreted redundant bits.
摘要翻译：本发明涉及在基站与多个基站之一中的多输入多输出（MIMO）天线的多用户多输入多输出（MU-MIMO）信令通信系统中的方法和装置的支持单用户和多用户多输入多输出（SU-MIMO和MU-MIMO）信令模式的移动终端。系统支持模式之间切换，模式部分共享信令。识别用于MU-MIMO模式信令的冗余（即不需要）的SU-MIMO模式信令。识别的冗余信令的位，即数据位被重新解释或重新定义为包括与MU-MIMO模式相关联的信令信息。通过使用重新解释的冗余比特，将与MU-MIMO模式相关联的信令信息通知移动终端。

4. 发明授权

US08867384B2 Method and arrangement in a telecommunication system 有权
标题翻译：电信系统中的方法和布置
公开(公告)号：US08867384B2
公开(公告)日：2014-10-21
申请号：US13002144
申请日：2008-12-09
申请人： David Astely , Yang Hu , Daniel Larsson , Lei Wan
发明人： David Astely , Yang Hu , Daniel Larsson , Lei Wan
IPC分类号： H04L12/26 , H04W4/00 , H04L1/16 , H04L1/18 , H04L27/34
CPC分类号： H04L1/1657 , H04L1/1635 , H04L1/1692 , H04L1/1829 , H04L5/0055 , H04L27/18 , H04L27/34 , H04W72/042
摘要： A method in a terminal for providing an ACK/NAK message to a base station is provided. The terminal counts the number of assigned downlink subframes detected from the base station resulting in k. The terminal then establishes whether each of a number of transport blocks comprised in the counted k downlink subframes is correctly received or not. In the case when each one of the transport blocks, comprised in the k downlink subframes is estimated as correctly received the terminal provides to the base station an encoded ACK message for the k subframes, which comprises k, the number of subframes.
摘要翻译：提供了一种用于向基站提供ACK / NAK消息的终端中的方法。终端计算从基站检测到的分配的下行链路子帧的数量导致k。终端然后确定包含在计数的k个下行链路子帧中的多个传输块中的每一个是否被正确接收。在包括在k个下行链路子帧中的每个传输块被估计为正确接收的情况下，终端向基站提供包括k个子帧的k个子帧的编码ACK消息。

5. 发明授权

US08818259B2 Method and arrangement in a radio base station working in a pre-coding mode for repeater selection 有权
标题翻译：在用于中继器选择的预编码模式下工作的无线电基站中的方法和装置
公开(公告)号：US08818259B2
公开(公告)日：2014-08-26
申请号：US13061918
申请日：2008-09-05
申请人： Qingyu Miao , Lei Wan
发明人： Qingyu Miao , Lei Wan
IPC分类号： H04B3/36 , H04B7/14 , H04B1/00 , H04B1/04 , H04M1/00 , H04W48/20 , H04B7/155 , H04B7/26 , H04W84/04
CPC分类号： H04B7/2606 , H04B7/155 , H04W48/20 , H04W84/047
摘要： The present invention relates to methods and arrangements that enable easy integration of on/off repeaters in a radio access network and a minimized signaling for the UE repeater selection. This is achieved by a solution where the RBSs are working in a pre-coding mode and where the repeaters are measuring the downlink reference signals, selecting pre-coding matrices and feeding the index of selection back (i.e. the PMI) to the RBS, in analogy with what a UE does. This allows the RBS to distinguish the UE repeater selection, without introducing any extra uplink report or interaction between UEs and repeaters, by comparing the index from the UE with the indices from different repeaters.
摘要翻译：本发明涉及能够容易地集成无线电接入网络中的开/关转发器和用于UE中继器选择的最小化信令的方法和装置。这通过解决方案实现，其中RBS以预编码模式工作，并且其中中继器正在测量下行链路参考信号，选择预编码矩阵并将选择索引（即，PMI）馈送到RBS，在类似于UE所做的工作。这允许RBS通过将来自UE的索引与来自不同中继器的索引进行比较来区分UE中继器选择，而不引入任何额外的上行链路报告或UE与中继器之间的交互。

6. 发明授权

US08768401B2 Method, apparatus, and network device for power control 有权
标题翻译：用于功率控制的方法，设备和网络设备
公开(公告)号：US08768401B2
公开(公告)日：2014-07-01
申请号：US13235117
申请日：2011-09-16
申请人： Mingyu Zhou , Lei Wan , Yajun Zhao , Xiaotao Ren
发明人： Mingyu Zhou , Lei Wan , Yajun Zhao , Xiaotao Ren
IPC分类号： H04B7/00 , H04B15/00 , H04B17/00
CPC分类号： H04W52/242 , H04W52/06 , H04W52/08 , H04W52/146
摘要： A method for power control includes: if a downlink serving Access Point (AP) of a User Equipment (UE) is different from an uplink serving AP of the UE, sending, by a base station, downlink signaling to the UE so that the UE adjusts uplink transmitting power according to the downlink signaling. In addition, the present invention discloses an apparatus and a network device for power control.
摘要翻译：一种用于功率控制的方法包括：如果用户设备（UE）的下行链路服务接入点（AP）与UE的上行链路服务AP不同，则由基站向UE发送下行链路信令，使得UE 根据下行信令调整上行发射功率。此外，本发明公开了一种用于功率控制的装置和网络装置。

7. 发明授权

US08351950B2 Scheduling and link adaptation in wireless telecommunications systems 有权
标题翻译：无线电信系统中的调度和链路适配
公开(公告)号：US08351950B2
公开(公告)日：2013-01-08
申请号：US12439009
申请日：2006-09-06
申请人： Lei Wan , Jingyi Liao , Yin Liu
发明人： Lei Wan , Jingyi Liao , Yin Liu
IPC分类号： H04W72/00
CPC分类号： H04W28/18 , H04L1/0002 , H04L1/0009 , H04L1/0027 , H04L1/0029
摘要： The invention relates to control of link resources in a wireless telecommunications system, in which instant channel feedback information is transmitted from a mobile terminal in response to receipt of a selection message from a basestation, and the instant channel feedback information is used for real-time resource allocation and adaptation at the basestation.
摘要翻译：本发明涉及无线电信系统中链路资源的控制，其中响应于从基站接收到选择消息，从移动终端发送即时信道反馈信息，并且即时信道反馈信息用于实时基地资源配置和适应。

8. 发明授权

US08305872B2 Synchronization in OFDM using polynomial cancellation coding 有权
标题翻译：使用多项式消除编码进行OFDM同步
公开(公告)号：US08305872B2
公开(公告)日：2012-11-06
申请号：US12522204
申请日：2007-01-09
申请人： Johan Nyström , Magnus Almgren , Lei Wan
发明人： Johan Nyström , Magnus Almgren , Lei Wan
IPC分类号： H04J11/00 , H04J3/06 , H04B1/00 , H04B15/00 , H04B1/40 , H04L5/12
CPC分类号： H04L27/2647 , H04L5/0044 , H04L27/2602 , H04L27/2662
摘要： In a method of enabling synchronization for a channel in an OFDM based telecommunication system initially providing a symbol for transmission and selecting at least two carrier frequencies, subsequently determining a respective weighting parameter for the selected frequencies and finally transmitting the symbol on all selected frequencies based on the weighting parameters.
摘要翻译：在一种使基于OFDM的电信系统中的信道同步的方法中，该系统最初提供用于传输的符号并选择至少两个载波频率，随后确定所选择的频率的相应加权参数，并且最终基于权重参数。

9. 发明申请

US20120254682A1 METHOD AND ARRANGEMENT FOR HARQ IN WIRELESS MULTI-CARRIER SYSTEMS 有权
标题翻译：无线多载波系统中的HARQ的方法和布置
公开(公告)号：US20120254682A1
公开(公告)日：2012-10-04
申请号：US13524284
申请日：2012-06-15
申请人： Lei Wan , Jung-Fu Cheng
发明人： Lei Wan , Jung-Fu Cheng
IPC分类号： H04L1/18 , G06F11/14
CPC分类号： H04L1/1809 , H04L1/0003 , H04L1/0009 , H04L1/0026 , H04L1/1816 , H04L1/1845 , H04L1/1854
摘要： A communication method in a receiving node in a wireless communication system includes receiving, at a receiving node, a first coded message block that includes a plurality of parts distributed over a plurality of components. The method further includes detecting a decoding error associated with decoding the received first coded message block and, in response to detecting the decoding error, identifying a part of the first coded message block for which retransmission will be requested and a suggested retransmission setting. The suggested retransmission setting includes one or more of a component selection setting, a link adaptation setting, a power control setting, and a scheduling setting. The method also includes feeding back to the sending node feedback information indicating that the first coded message block could not be correctly decoded. The feedback information indicates the identified part of the first coded message block and the suggested retransmission settings.
摘要翻译：无线通信系统中的接收节点中的通信方法包括在接收节点处接收包括分布在多个分量上的多个部分的第一编码消息块。该方法还包括检测与解码接收到的第一编码消息块相关联的解码错误，并且响应于检测到解码错误，识别要请求重传的第一编码消息块的一部分和建议的重传设置。建议的重传设置包括组件选择设置，链路自适应设置，功率控制设置和调度设置中的一个或多个。该方法还包括向发送节点反馈指示第一编码消息块不能被正确解码的反馈信息。反馈信息表示第一编码消息块的识别部分和建议的重传设置。

10. 发明授权

US08112105B2 Method, apparatus and system for estimating channels 有权
标题翻译：估计渠道的方法，装置和系统
公开(公告)号：US08112105B2
公开(公告)日：2012-02-07
申请号：US13229222
申请日：2011-09-09
申请人： Lei Wan , Xingqin Cheng , Mingyu Zhou , Yajun Zhao
发明人： Lei Wan , Xingqin Cheng , Mingyu Zhou , Yajun Zhao
IPC分类号： H04Q7/20
CPC分类号： H04W72/044 , H04J11/0023 , H04L5/0007 , H04L5/0035 , H04L5/0048 , H04L25/0204 , H04L25/0224 , H04W72/0433
摘要： A method, an apparatus and a system for estimating channels are disclosed. A method for estimating channels includes: receiving downlink signals inclusive of reference signals from two or more Access Points (APs), where the relative frequency shift between reference signals sent by different APs is zero; and performing channel estimation according to the reference signals. Another method for estimating channels includes: receiving downlink signals inclusive of reference signals from two or more APs, where for a first AP and a second AP among the two or more APs, a specific time-frequency lattice in the downlink signals sent by the first AP does not include data signal, and the specific time-frequency lattice corresponds to a time-frequency lattice utilized by the second AP to send a reference signal; and performing channel estimation according to the reference signals. The technical solution disclosed herein eliminates the interference between the reference signal and the data signal, enables the UE to estimate the channel value between the UE and the cooperative APs accurately, and improves the UE performance.
摘要翻译：公开了一种用于估计信道的方法，装置和系统。用于估计信道的方法包括：从两个或多个接入点（AP）接收包括参考信号的下行链路信号，其中由不同AP发送的参考信号之间的相对频移为零; 并根据参考信号进行信道估计。用于估计信道的另一方法包括：从两个或多个AP接收包括参考信号的下行链路信号，其中对于两个或更多个AP中的第一AP和第二AP，下行链路信号中的特定时间 - 频率格点由第一 AP不包括数据信号，并且特定时间频率格对应于由第二AP利用来发送参考信号的时间 - 频率格点; 并根据参考信号进行信道估计。本文公开的技术方案消除了参考信号与数据信号之间的干扰，使UE能够准确地估计UE与协作AP之间的信道值，提高UE的性能。

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