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    • 6. 发明授权
    • Systems and methods for hybrid content delivery
    • 混合内容传送的系统和方法
    • US09191163B2
    • 2015-11-17
    • US13411057
    • 2012-03-02
    • Hui Liu
    • Hui Liu
    • H04B7/00H04L1/18H04L1/00
    • H04L1/1893H04L2001/0093H04L2001/0097
    • Systems and methods which provide data communication content delivery through a hybrid network implementation are disclosed. A hybrid network configuration may utilize a broadcast communication technique to deliver large amounts of data communication content to one or more mobile communication device via uni-directional network links and a uni-cast communication technique via bi-directional network links with the one or more mobile communication device to facilitate delivery and utilization of the data communication content. Data content delivery loss recovery techniques implemented according to embodiments of the invention utilize network links of the hybrid network other than or in addition to the uni-directional network links to implement loss recovery techniques such as a hybrid repeat technique, a hybrid retransmission technique, hybrid statistical feedback technique, and/or combinations thereof.
    • 公开了通过混合网络实现提供数据通信内容传送的系统和方法。 混合网络配置可以利用广播通信技术,通过单向网络链路和通过与一个或多个移动台的双向网络链路的单播通信技术将大量的数据通信内容传送到一个或多个移动通信设备 通信设备,便于数据通信内容的传送和利用。 根据本发明的实施例实现的数据内容传送丢失恢复技术利用除了单向网络链路之外的或除了单向网络链路之外的混合网络的网络链路来实现诸如混合重复技术,混合重传技术,混合 统计反馈技术,和/或其组合。
    • 9. 发明授权
    • Data encryption and decryption method and apparatus
    • 数据加解密方法及装置
    • US08942373B2
    • 2015-01-27
    • US13001022
    • 2010-12-01
    • Hui Liu
    • Hui Liu
    • H04L9/00H04L9/28H04L9/06H04L9/14H04L29/06H04L9/16
    • H04L9/0656H04L9/14H04L9/16H04L63/045
    • This present application relates to data encryption and decryption technology, and especially relates to a data encryption and decryption method and apparatus. The described encryption method comprises: packeting plaintext data to be encrypted, randomly assigning an encryption function to each group of the plaintext data, encrypting each group of the plaintext data with the encryption function respectively, and arranging the encrypted data according to its corresponding position in the plaintext data to form a ciphertext. The encryption apparatus includes: packet module, encryption function random assignment module and encryption processing module. This application also provides a data decryption method and apparatus. This invention randomly assigns an encryption function to the plaintext to be encrypted, and uses the assigned encryption function to encrypt the plaintext data to arrange and form a ciphertext, greatly strengthening the security of data storage, and achieving the perfect secrecy of data.
    • 本申请涉及数据加密和解密技术,特别涉及数据加密和解密方法和装置。 所描述的加密方法包括:打包要加密的明文数据,为每组明文数据随机分配加密功能,分别用加密功能对每组明文数据进行加密,并根据其对应位置对加密数据进行排列 明文数据形成密文。 加密装置包括:分组模块,加密功能随机分配模块和加密处理模块。 本申请还提供了一种数据解密方法和装置。 本发明为要加密的明文随机分配加密功能,并使用分配的加密功能对明文数据进行加密,形成密文,大大加强了数据存储的安全性,实现了数据的完美保密。
    • 10. 发明授权
    • Method and system for switching antenna and channel assignments in broadband wireless networks
    • 宽带无线网络切换天线和信道分配的方法和系统
    • US08797970B2
    • 2014-08-05
    • US12498924
    • 2009-07-07
    • Guanbin XingManyuan ShenHui Liu
    • Guanbin XingManyuan ShenHui Liu
    • H04W4/00
    • H04L5/06H04B7/0452H04B7/0613H04B17/24H04B17/382H04L5/023H04L27/261H04W28/18H04W48/16H04W72/04H04W72/0453H04W72/085
    • A method and apparatus for antenna switching, grouping, and channel assignments in wireless communication systems. The invention allows multiuser diversity to be exploited with simple antenna operations, therefore increasing the capacity and performance of wireless communications systems. Channel characteristics indicative of signal reception quality for downlink or bi-directional traffic for each channel/antenna resource combination are measured or estimated at a subscriber. Corresponding channel characteristic information is returned to the base station. Channel characteristics information may also be measured or estimated for uplink or bi-directional signals received at each of multiple receive antenna resources. The base station employs channel allocation logic to assign uplink, downlink and/or bi-directional channels for multiple subscribers based on channel characteristics measured and/or estimated for the uplink, downlink and/or bi-directional channels.
    • 一种用于无线通信系统中的天线切换,分组和信道分配的方法和装置。 本发明允许利用简单的天线操作来利用多用户分集,从而增加无线通信系统的容量和性能。 指示用于每个信道/天线资源组合的下行链路或双向业务的信号接收质量的信道特性在用户处被测量或估计。 相应的信道特征信息返回给基站。 还可以对在多个接收天线资源中的每一个处接收的上行链路或双向信号测量或估计信道特性信息。 基站采用信道分配逻辑以基于针对上行链路,下行链路和/或双向信道测量和/或估计的信道特性为多个用户分配上行链路,下行链路和/或双向信道。