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    • 13. 发明申请
    • INTERFERENCE ELIMINATION METHOD AND DATA TRANSMITTING APPARATUS
    • 干扰消除方法和数据传输装置
    • US20120051459A1
    • 2012-03-01
    • US13293774
    • 2011-11-10
    • Sheng Liu
    • Sheng Liu
    • H04L25/49
    • H04L25/03343H04B7/0413H04B7/0617H04L2025/03426
    • An interference elimination method provided herein includes: the ith transmitter of a group transmitters obtains an interference vector of each user, where: the interference vector of the kth user is Hkiwim; obtains at least L−N linear combinations for each user, wherein: the linear combination includes linear combinations of aligned interference vectors and linear combinations of N−Lk interference vectors, N is the number of receiving antennas of the user, and L is a sum of the signal flows of all users; the pre-coding vectors of all transmitters is obtained according to the linear combinations of all users; and the signals pre-coded using the pre-coding vectors are sent. Accordingly, a data transmitting apparatus is provided herein.
    • 本文提供的干扰消除方法包括:组发射机的第i个发射机获取每个用户的干扰矢量,其中:第k个用户的干扰矢量是Hkiwim; 为每个用户获得至少L-N个线性组合,其中:线性组合包括对齐干扰矢量的线性组合和N-Lk个干扰矢量的线性组合,N是用户的接收天线的数量,L是总和 的所有用户的信号流; 根据所有用户的线性组合获得所有发射机的预编码向量; 并且发送使用预编码矢量预编码的信号。 因此,本文提供了一种数据发送装置。
    • 14. 发明授权
    • Method and system of signal transmission in base transceiver station based on remote radio head
    • 基站收发台基于远程无线电头的信号传输方法与系统
    • US07822075B2
    • 2010-10-26
    • US11547699
    • 2004-04-09
    • Sheng Liu
    • Sheng Liu
    • H04J3/02
    • H04J3/1617H04J3/1658H04J2203/0035H04W88/08H04W92/10
    • The invention relates to a method of signal transmission between a host BTS and Remote Radio Unit(s), and the BTS communication system thereof. The transmission channel between the host BTS and the Remote Radio Unit(s) uses wideband transmission links or a network, the method includes the following steps of: performing the transmission over the transmission channel using a Synchronous Digital Hierarchy (SDH)/Optical Transmission Network (OTN), forming a digital wireless signal data stream and an in-band control signaling stream transmitted over the transmission channel into a Generic Framing Procedure (GFP) frame which is further mapped to a STM-N/OTM-n frame, thereby multiplexing the digital wireless signal data stream and the in-band control signaling stream to realize SDH/OTN-based transmission. As a result, the wireless signal can be effectively transmitted between the RRH and the host BTS without specific transmission network, and the management and maintenance operation required by the signal transmission and the networking cost can be reduced.
    • 本发明涉及一种主机BTS和远程无线电单元之间的信号传输方法及其BTS通信系统。 主机BTS和远程无线电单元之间的传输通道使用宽带传输链路或网络,该方法包括以下步骤:使用同步数字体系(SDH)/光传输网络在传输信道上执行传输 (OTN),形成数字无线信号数据流和通过传输信道传输的带内控制信令流,进一步映射到STM-N / OTM-n帧的通用成帧过程(GFP)帧,由此复用 数字无线信号数据流和带内控制信令流,实现基于SDH / OTN的传输。 结果,可以在RRH和主机BTS之间有效地传输无线信号,而无需特定的传输网络,可以减少信号传输所需的管理和维护操作以及联网成本。
    • 15. 发明授权
    • Method for resource management and method for traffic guidance in the multimode radio network
    • 多模式无线网络中的资源管理方法及交通指导方法
    • US07796554B2
    • 2010-09-14
    • US11547061
    • 2004-03-29
    • Sheng LiuBaijun Zhao
    • Sheng LiuBaijun Zhao
    • H04W4/00
    • H04W28/08H04W36/22H04W88/085H04W92/12
    • The application discloses a method for resource management and a method for traffic guidance in a multimode radio network comprising a plurality of mobile communication networks of different modes that share wideband transmission links and sites of centralized base stations, the centralized base stations of the plurality of mobile communication networks being connected to a common base station controller or a common radio networks controller. A mobile terminal is made to perform real-time handover among different mobile communication networks, or, the allocation of the resources among the plurality of mobile communication networks is adjusted in real time, according to at least one of the following factors or the combination thereof: the multimode supporting capability of the mobile terminal, traffics of cells, operation policies and real-time operating conditions of the plurality of networks.
    • 本申请公开了一种用于资源管理的方法和一种多模式无线电网络中的交通引导方法,其包括共享宽带传输链路和集中式基站的站点的不同模式的多个移动通信网络,多个移动站的集中基站 通信网络连接到公共基站控制器或公共无线电网络控制器。 移动终端被做成在不同的移动通信网络之间执行实时切换,或者根据以下因素中的至少一个或其组合来实时地调整多个移动通信网络中的资源的分配 :移动终端的多模支持能力,小区的业务流,操作策略和多个网络的实时操作条件。
    • 16. 发明授权
    • Packet transmission method for wireless signals in a wireless base station system
    • 无线基站系统中无线信号的分组传输方法
    • US07773578B2
    • 2010-08-10
    • US11632600
    • 2004-07-13
    • Sheng Liu
    • Sheng Liu
    • H04L12/28H04W4/00H04M1/00
    • H04W24/06H04L69/326
    • A method of transmitting one or more branches of wireless signals between a channel processing unit and a remote radio frequency unit in a centralized base station, or between base stations through a packet network, each of said branches of wireless signals being a signal flow having a wireless frame period, the method comprising steps: obtaining a sample data stream of wireless signal of each branch in said wireless signals; dividing said sample data stream into consecutive data segments of fixed length; encapsulating said data segments into application protocol packets according to a predetermined protocol, each application protocol packet further including first information indicating the sequence of the data segment of the packet in all the data segments of the branch to which the data segment belongs; second information indicating payload type of the branch; third information indicating whether the data segment of the packet contains a data sample corresponding to the start of a wireless frame period; and fourth information indicating the position of the data sample in the data segment if the third information indicates that the data sample corresponding to the start of the wireless frame period is contained; and encapsulating the generated application protocol packets into network protocol packets according to a network transport protocol and transmitting them to a specified target, wherein the network protocol packet further includes fifth information identifying one of said one or more branches to which the packet belongs, said fifth information and network transport source address and destination address uniquely distinguishing said branches.
    • 一种在集中式基站中的信道处理单元和远程射频单元之间或通过分组网络在基站之间传输无线信号的一个或多个分支的方法,每个所述无线信号分支是具有 无线帧周期,所述方法包括以下步骤:获得所述无线信号中每个分支的无线信号的采样数据流; 将所述采样数据流划分成固定长度的连续数据段; 根据预定协议将所述数据段封装到应用协议分组中,每个应用协议分组还包括指示数据段所属分支的所有数据段中分组的数据段的序列的第一信息; 指示分支的有效载荷类型的第二信息; 指示分组的数据段是否包含与无线帧周期的开始相对应的数据样本的第三信息; 以及第四信息,如果第三信息指示包含与无线帧周期的开始相对应的数据样本,则指示数据段中的数据样本的位置; 并根据网络传输协议将生成的应用协议分组封装成网络协议分组,并将其发送到指定的目标,其中所述网络协议分组还包括标识所述分组所属的所述一个或多个分支之一的第五信息,所述第五 信息和网络传输源地址和目的地址唯一区分所述分支。
    • 17. 发明申请
    • Nanotube Devices and Vertical Field Effect Transistors
    • 纳米管器件和垂直场效应晶体管
    • US20090045061A1
    • 2009-02-19
    • US12143132
    • 2008-06-20
    • Reginald C. FarrowZafar IqbalAmit GoyalSheng Liu
    • Reginald C. FarrowZafar IqbalAmit GoyalSheng Liu
    • C25D13/02
    • C25D13/02B82Y10/00B82Y30/00B82Y40/00C01B32/174C01B2202/02H01L29/0665H01L29/0673H01L29/0676H01L29/78642H01L51/0002H01L51/0048
    • A method of depositing nanotubes in a region defined by an aperture is disclosed. The method provides advantageous control over the number of nanotubes to be deposited, as well as the pattern and spacing of nanotubes. Electrophoretic deposition, along with proper configuration of the aperture, allows at least one nanotube to be deposited in a target region with nanometer scale precision. Pre-sorting of nanotubes, e.g., according to their geometries or other properties, may be used in conjunction with embodiments of the invention to facilitate fabrication of devices with specific performance requirements. The method is useful for many applications where it is desirable to deposit more than one nanotube in a defined region. For example, vertical field effect transistor (VFET) designs may benefit from having more than one nanotube forming a channel to allow more current to flow through the device. By controlling the number of nanotubes to be deposited, one can ensure that the VFET output can be designed with sufficient current to meet the parameters of a logic circuit input.
    • 公开了一种在由孔限定的区域中沉积纳米管的方法。 该方法对待沉积的纳米管的数量以及纳米管的图案和间距提供有利的控制。 电泳沉积以及孔的适当构型允许至少一个纳米管以纳米级精度沉积在目标区域中。 可以结合本发明的实施例使用例如根据它们的几何形状或其他性质对纳米管进行预分选,以促进具有特定性能要求的装置的制造。 该方法对于希望在限定区域中沉积多于一个的纳米管的许多应用是有用的。 例如,垂直场效应晶体管(VFET)设计可能受益于具有多于一个的纳米管形成通道以允许更多的电流流过器件。 通过控制要沉积的纳米管的数量,可以确保VFET输出可以设计成具有足够的电流以满足逻辑电路输入的参数。
    • 18. 发明申请
    • Method and apparatus for downlink multi-channel packet combined scheduling in mobile communication system
    • 移动通信系统中下行链路多信道组合调度的方法和装置
    • US20090016275A1
    • 2009-01-15
    • US10579170
    • 2003-11-12
    • Sheng LiuBaijun Zhao
    • Sheng LiuBaijun Zhao
    • H04Q7/00
    • H04W72/1273H04W28/06H04W84/04
    • The present invention sets forth a method for performing packet combined scheduling of dedicated transport channels for packet services in UMTS downlinks, comprising the following steps: a) prior to each DCH scheduling period, performing pre-selection processing of a transport format combination of each DPCH according to the predetermined restriction conditions for the DCH combined packet scheduling, so as to determine a usable transport format combination set for each DPCH; b) restricting a total downlink transmit power of DCHs for NRT packet services to a schedulable power not exceeding a schedulable power value in the estimation of a total downlink power during said scheduling period; c) based on the fairness of DCH transportation and the QoS requirements of the DCH-borne services, determining weighted values which the respective DCHs correspond to in the optimization of the DCH combined packet scheduling; and d) based on the results of steps a), b), and c), calculating the maximum number of bits which each DCH is schedulable to output, using a 0-1 programming algorithm. The present invention guarantees the fairness, priority and QoS (Quality of Service) of different DCHs and can achieve maximum total data throughput.
    • 本发明提出了一种用于在UMTS下行链路中进行分组业务的专用传输信道的分组组合调度的方法,包括以下步骤:a)在每个DCH调度周期之前,执行每个DPCH的传输格式组合的预选择处理 根据用于DCH组合分组调度的预定限制条件,以确定为每个DPCH设置的可用传输格式组合; b)在所述调度周期内估计总下行链路功率时,将NRT分组业务的DCH的总下行发射功率限制为不超过可调度功率值的可调度功率; c)基于DCH传输的公平性和DCH传送业务的QoS要求,确定在DCH组合分组调度优化中相应DCH对应的加权值; 和d)基于步骤a),b)和c)的结果,使用0-1编程算法计算每个DCH可调度以输出的最大比特数。 本发明保证不同DCH的公平性,优先级和QoS(服务质量),并且可以实现最大的总数据吞吐量。
    • 19. 发明申请
    • Transmission Optimization in a Wireless Base Station System Based on Load-Sharing
    • 基于负载分担的无线基站系统中的传输优化
    • US20080318589A1
    • 2008-12-25
    • US10598521
    • 2004-03-05
    • Sheng LiuBaijun ZhaoHuang Bill
    • Sheng LiuBaijun ZhaoHuang Bill
    • H04Q7/30
    • H04W88/08H04W28/08H04W92/20
    • A signal transmission method in a wireless base station system is provided, comprising: in the downlink direction, the wireless network control device transmits downlink data frames of the cell to the base station to which their channel processing relates for processing; the first base station receives corresponding downlink wireless signals from the base station which the channel processing of the cell's downlink data frames relates to; and the first base station transmits the downlink wireless signals for the cell; and in the uplink direction, the first base station receives uplink wireless signals of the cell; the first base station distributes a part or all of the uplink wireless signals to the base station to which their channel processing relates for processing; the wireless network control device receives corresponding uplink data frames from the base station which the channel processing of the uplink wireless signals relates to, wherein the base station which the channel processing of the downlink data frames relates to, or the base station which the channel processing of the uplink wireless signals relates to comprises at least the second base station.
    • 提供了一种无线基站系统中的信号传输方法,包括:在下行链路方向上,所述无线网络控制装置将所述小区的下行链路数据帧发送到与其信道处理相关的基站进行处理; 第一基站从小区的下行链路数据帧的信道处理涉及的基站接收相应的下行链路无线信号; 并且第一基站发送用于小区的下行链路无线信号; 并且在所述上行方向上,所述第一基站接收所述小区的上行链路无线信号; 第一基站将部分或全部上行链路无线信号分配到与其信道处理相关的基站进行处理; 无线网络控制装置从上行链路无线信号的信道处理与基站对应的上行链路数据帧,其中下行链路数据帧的信道处理所涉及的基站与信道处理的基站 上行链路无线信号涉及至少包括第二基站。
    • 20. 发明申请
    • Interface Method Between Remote Radio Unit And Centralized Transceiver Station
    • 远程收音机与集中收发站之间的接口方法
    • US20080199183A1
    • 2008-08-21
    • US11572027
    • 2004-07-13
    • Sheng LiuYulin Li
    • Sheng LiuYulin Li
    • H04J14/08
    • H04W88/085H04J3/0682H04J3/1617H04J3/1658H04J2203/0035
    • The present invention discloses a method for transmitting signal between a central channel processing Main Unit (MU) and one or more Remote Radio Units (RRUs) by using SDH/OTN in Centralized Base Transceiver Station system using remote radio head (RRH) technology. The method includes: dividing the communication interface between the MU and the RRUs into a user plane and a control plane, the user plane mainly for carrying I/Q sampling data concerning the user data, and the control plane mainly for carrying the data concerning control signaling; forming the I/Q sampling data concerning the user data carried by the user plane into an I/Q data frame via an I/Q data frame adaptation layer, then forming the I/Q data frame into a GFP frame via GFP and transmitting it on SDH/OTN; and carrying the control signaling of the control plane on UDP/IP and/or TCP/IP, and further carrying IP packet on PPP and forming it into a frame by HDLC, transmitting the HDLC frame including the control plane signaling on the SDH/OTN via the control character channel of the GFP frame. According to the present invention, the existing SDH/OTN transmission network is utilized directly, which further reduces the management and maintenance operation needed for signal transmission, as well as networking cost.
    • 本发明公开了一种使用远程无线电头(RRH)技术在集中式基站收发台系统中使用SDH / OTN在中央信道处理主单元(MU)与一个或多个远程无线单元(RRU)之间发送信号的方法。 该方法包括:将MU与RRU之间的通信接口划分为用户平面和控制平面,用户平面主要用于携带有关用户数据的I / Q采样数据,主控用于携带有关控制的数据的控制平面 信令; 通过I / Q数据帧适配层形成关于用户面承载的用户数据的I / Q采样数据到I / Q数据帧,然后经由GFP将I / Q数据帧形成GFP帧并发送 在SDH / OTN上; 并在UDP / IP和/或TCP / IP上承载控制平面的控制信令,并进一步在PPP上承载IP包,并通过HDLC形成帧,在SDH / OTN上发送包含控制平面信令的HDLC帧 通过GFP帧的控制字符通道。 根据本发明,直接使用现有的SDH / OTN传输网络,进一步减少信号传输所需的管理和维护操作以及网络成本。