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1. 发明授权

US6138152A Technique for effectively serving information objects through a communication network 失效
标题翻译：通过通信网络有效地提供信息对象的技术
公开(公告)号：US6138152A
公开(公告)日：2000-10-24
申请号：US89596
申请日：1998-06-02
申请人： Pankaj Jalote , Sampath Rangarajan , Shalini Yajnik
发明人： Pankaj Jalote , Sampath Rangarajan , Shalini Yajnik
IPC分类号： G06F17/30 , G06F15/16 , G06F15/17
CPC分类号： G06F17/30887 , Y10S707/99953 , Y10S707/99954
摘要： In a communication arrangement, client terminals request information objects, e.g., hypertext markup language (HTML) documents, which are identified by their uniform resource locators (URLs) from a server system connected to the World Wide Web (WWW). For example, the information objects may represent different chapters of the same book and are thus logically connected. In accordance with the invention, when the logically connected information objects are updated, the updated versions of the information objects are stored in a temporary memory space. For those client terminals requesting the logically connected information objects by their URLs before the update, the server system consistently provides the original versions of the information objects at such URLs to the client terminals. However, for those client terminals requesting the logically connected information objects by their URLs after the update, the server system translates the given URLs to different URLs indicating the memory locations where the updated versions thereof are stored, thereby consistently providing the updated versions to the client terminals.
摘要翻译：在通信方案中，客户端终端从连接到万维网（WWW）的服务器系统请求由其统一资源定位符（URL）标识的信息对象，例如超文本标记语言（HTML）文档。例如，信息对象可以表示同一本书的不同章节，因此逻辑上是连接的。根据本发明，当逻辑连接的信息对象被更新时，信息对象的更新版本被存储在临时存储器空间中。对于那些在更新之前通过其URL请求逻辑连接的信息对象的客户终端，服务器系统始终将这些URL处的信息对象的原始版本提供给客户终端。然而，对于那些在更新之后通过其URL请求逻辑连接的信息对象的客户终端，服务器系统将给定的URL转换成指示存储其更新版本的存储器位置的不同URL，从而始终向客户端提供更新的版本终端。

2. 发明授权

US06510439B1 Method and system for consistent update and retrieval of document in a WWW server 有权
标题翻译：在WWW服务器中一致地更新和检索文档的方法和系统
公开(公告)号：US06510439B1
公开(公告)日：2003-01-21
申请号：US09370340
申请日：1999-08-06
申请人： Sampath Rangarajan , Shalini Yajnik
发明人： Sampath Rangarajan , Shalini Yajnik
IPC分类号： G06F1730
CPC分类号： G06F17/30893 , Y10S707/99945 , Y10S707/99952
摘要： A system for providing coherent access to different versions of a group of documents stored in a file system and retrievable over the Internet from an HTTP server includes a state management server which stores registration data indicating the file paths of the documents in each version of the group and a set of index paths used by clients to reference documents in the group. State information identifying the version of said group previously accessed by a client is stored in a cookie which is associated with the domain of the state management server and the path of the group. A client requests a document from the group by issuing a request to an HTTP server including the index path of the desired document. The request and associated cookie, which is automatically transmitted by the client Internet software, is forwarded to the state management server. The state information stored in the cookie is extracted and used to determine which version of the group of documents should be accessed. The index path is then mapped to the file path for the appropriate version of the requested document and the data information is updated to reflect the present access. The mapped file path and cookie are then returned to the HTTP server.
摘要翻译：用于提供对存储在文件系统中并可通过因特网从HTTP服务器检索的一组文档的不同版本的一致访问的系统包括状态管理服务器，其存储指示文档的每个版本中的文件路径的注册数据以及客户端使用的一组索引路径来引用组中的文档。识别由客户端先前访问的所述组的版本的状态信息被存储在与状态管理服务器的域和组的路径相关联的cookie中。客户端通过向包括所需文档的索引路径的HTTP服务器发出请求来请求组中的文档。由客户端Internet软件自动发送的请求和关联的cookie被转发到状态管理服务器。提取存储在cookie中的状态信息，并用于确定哪个版本的文档组应被访问。然后将索引路径映射到文件路径以获取所请求文档的适当版本，并更新数据信息以反映当前访问。映射的文件路径和cookie然后返回到HTTP服务器。

3. 发明授权

US6070191A Data distribution techniques for load-balanced fault-tolerant web access 失效
标题翻译：负载均衡容错Web访问的数据分发技术
公开(公告)号：US6070191A
公开(公告)日：2000-05-30
申请号：US953577
申请日：1997-10-17
申请人： Balakrishnan Narendran , Sampath Rangarajan , Shalini Yajnik
发明人： Balakrishnan Narendran , Sampath Rangarajan , Shalini Yajnik
IPC分类号： G06F9/50 , G06F11/00 , H04L29/06 , H04L29/08 , G06F13/00
CPC分类号： G06F9/505 , G06F9/5083 , H04L67/1023 , H04L67/1095 , H04L69/329 , H04L67/1002 , H04L67/1034
摘要： A server system for processing client requests received over a communication network includes a cluster of N document servers and at least one redirection server. The redirection server receives a client request from the network and redirects it to one of the document servers, based on a set of pre-computed redirection probabilities. Each of the document servers may be an HTTP server that manages a set of documents locally and can service client requests only for the locally-available documents. A set of documents are distributed across the document servers in accordance with a load distribution algorithm which may utilize the access rates of the documents as a metric for distributing the documents across the servers and determining the redirection probabilities. The load distribution algorithm attempts to equalize the sum of the access rates of all the documents stored at a given document server across all of the document servers. In the event of a server failure, the redirection probabilities may be recomputed such that the load of client requests is approximately balanced among the remaining document servers. The redirection probabilities may also be recomputed periodically in order to take into account changes in document access rates and changes in server capacity. The recomputation may be based on a maximum-flow minimum-cost solution of a network flow problem.
摘要翻译：用于处理通过通信网络接收的客户端请求的服务器系统包括N个文档服务器的集群和至少一个重定向服务器。重定向服务器基于一组预先计算的重定向概率从网络接收客户端请求并将其重定向到其中一个文档服务器。每个文档服务器可以是本地管理一组文档的HTTP服务器，并且可以仅为本地可用文档服务客户端请求。一组文档根据负载分布算法分布在文档服务器上，负载分配算法可以利用文档的访问速率作为跨服务器分发文档的度量并确定重定向概率。负载分配算法尝试均衡所有文档服务器上存储在给定文档服务器上的所有文档的访问速率之和。在服务器发生故障的情况下，可以重新计算重定向概率，使得客户机请求的负载在剩余的文档服务器之间大致平衡。也可以定期重新计算重定向概率，以便考虑文档访问速率和服务器容量变化的变化。重新计算可以基于网络流量问题的最大流量最小成本解决方案。

4. 发明授权

US09055456B2 Remote virtualization of a cellular basestation 有权
标题翻译：蜂窝基站的远程虚拟化
公开(公告)号：US09055456B2
公开(公告)日：2015-06-09
申请号：US13173796
申请日：2011-06-30
申请人： Ravindranath Kokku , Rajesh Mahindra , Honghai Zhang , Sampath Rangarajan
发明人： Ravindranath Kokku , Rajesh Mahindra , Honghai Zhang , Sampath Rangarajan
IPC分类号： H04W4/00 , H04W28/02 , H04L12/801 , H04L12/815 , H04L12/851 , H04W28/10
CPC分类号： H04W28/02 , H04L47/14 , H04L47/19 , H04L47/22 , H04L47/2408 , H04L47/2441 , H04W28/10
摘要： The present invention is directed to a method employing a basestation with downlink and uplink flows of information between users; remotely virtualizing the flows from an entity external to the basestation without any modification to the basestation; and creating virtual basestations or networks responsive to the remotely virtualizing.
摘要翻译：本发明涉及一种在用户之间使用下行链路和上行信息流的基站的方法; 远程虚拟化来自基站外部的实体的流量，而不对基站进行任何修改; 以及响应于远程虚拟化创建虚拟基站或网络。

5. 发明授权

US08891677B2 Power scaling for retransmissions in uplink MIMO hybrid ARQ 有权
标题翻译：上行链路MIMO混合ARQ中的重传功率缩放
公开(公告)号：US08891677B2
公开(公告)日：2014-11-18
申请号：US13292659
申请日：2011-11-09
申请人： Guosen Yue , Narayan Prasad , Meilong Jiang , Sampath Rangarajan
发明人： Guosen Yue , Narayan Prasad , Meilong Jiang , Sampath Rangarajan
IPC分类号： H04L27/00 , H04L25/03 , H04L5/00 , H04W52/48 , H04L1/18 , H04L1/00
CPC分类号： H04L5/0055 , H04L1/0003 , H04L1/0009 , H04L1/1819 , H04L1/1867 , H04L25/03923 , H04W52/48
摘要： A method includes obtaining a precoder for retransmission of one codeword responsive to known precoding matrix P of rank r and modulation and coding scheme MCS assignments used in an original transmission, and a desired retransmission rank r′; and scaling power in the retransmission responsive to at least two of 1) information parameters Index of UL precoder in previous transmission, 2) rank r of uplink UL precoder in previous transmission, 3) MCS assignments in previous retransmission (MCSi), 4) rank r′ for UL retransmission 5) number of retransmit antennas used for codeword to be retransmitted x in previous transmission, 6) number of retransmit antennas x′ used for retransmission, 7) precoder for UL retransmission, 8) UL precoders and channel information for previous transmission, and 8) latest channel measurements.
摘要翻译：一种方法包括响应于已知的秩r的预编码矩阵P以及在原始传输中使用的调制和编码方案MCS分配以及期望的重传等级r'，获得用于重传一个码字的预编码器。并且响应于以前的传输中的UL预编码器的信息参数索引中的至少两个，2）先前传输中的上行链路UL预编码器的秩r，先前传输中的MCS分配（MCSi），4）等级 r'用于UL重传5）用于先前传输中的要重发的码字的重传天线数x 6用于重传的重传天线数x'7）用于UL重传的预编码器8）UL预编码器和用于前一个传输的信道信息传输，以及8）最新的频道测量。

6. 发明授权

US08873482B2 Method and system for virtualizing a cellular basestation 有权
标题翻译：虚拟化蜂窝基站的方法和系统
公开(公告)号：US08873482B2
公开(公告)日：2014-10-28
申请号：US13037442
申请日：2011-03-01
申请人： Ravindranath Kokku , Rajesh Mahindra , Honghai Zhang , Sampath Rangarajan
发明人： Ravindranath Kokku , Rajesh Mahindra , Honghai Zhang , Sampath Rangarajan
IPC分类号： H04W4/00 , H04W28/26 , H04W28/20 , H04W72/12
CPC分类号： H04W28/26 , H04W28/20 , H04W72/121
摘要： A network virtualization method in a wireless communication system includes aggregating sets of uplink and downlink flows on a cellular basestation into groups; allocating wireless resources to each of the sets as a respective basestation slice; and enabling each of the sets of flows to be under a distinct administrative entity.
摘要翻译：无线通信系统中的网络虚拟化方法包括将蜂窝基站上的上行链路和下行链路流集合成组; 将无线资源分配给每个集合作为相应的基站分片; 并使每组流都处于不同的管理实体之下。

7. 发明授权

US08873441B2 Method for LTE downlink scheduling with MIMO 有权
标题翻译：用于具有MIMO的LTE下行链路调度的方法
公开(公告)号：US08873441B2
公开(公告)日：2014-10-28
申请号：US13343192
申请日：2012-01-04
申请人： Honghai Zhang , Narayan Prasad , Sampath Rangarajan
发明人： Honghai Zhang , Narayan Prasad , Sampath Rangarajan
IPC分类号： H04B7/00 , H04W4/00 , H04W72/04 , H04L1/00 , H04L5/00 , H04L1/06 , H04W72/12 , H04B7/04 , H04B7/06
CPC分类号： H04W72/0406 , H04B7/0417 , H04B7/0452 , H04B7/0465 , H04B7/0626 , H04L1/0003 , H04L1/0009 , H04L1/0026 , H04L1/06 , H04L5/0023 , H04L5/0037 , H04L5/0046 , H04W72/04 , H04W72/042 , H04W72/1231
摘要： A method for LTE or WiMAX scheduling includes collecting, by a basestation BS, channel feedback from multiple mobiles with downlink traffic. The channel feedback enables the BS to determine an achievable rate or block error probability if transmitting to a mobile with a given modulation and coding scheme MCS and multiple-input multiple-output MIMO mode. The method includes determining, by the BS, which of the mobiles is scheduled on each resource block RB and what the MCS and MIMO mode is selected for each scheduled mobile, and allocating bits on the set of the RBs assigned to each scheduled mobile.
摘要翻译：用于LTE或WiMAX调度的方法包括由基站BS从具有下行链路业务的多个移动台收集信道反馈。如果使用给定的调制和编码方案MCS和多输入多输出MIMO模式发送到移动台，则信道反馈使得BS能够确定可实现的速率或块错误概率。该方法包括由BS确定在每个资源块RB上调度哪些移动台，以及为每个调度的移动台选择哪种MCS和MIMO模式，以及分配给每个调度的移动站的RB集合上的比特。

8. 发明授权

US08798011B2 Enhancement of download multi-user multiple-input multiple-output wireless communications 有权
标题翻译：增强下载多用户多输入多输出无线通信
公开(公告)号：US08798011B2
公开(公告)日：2014-08-05
申请号：US13456881
申请日：2012-04-26
申请人： Narayan Prasad , Guosen Yue , Meilong Jiang , Mohammad A. Khojastepour , Sampath Rangarajan
发明人： Narayan Prasad , Guosen Yue , Meilong Jiang , Mohammad A. Khojastepour , Sampath Rangarajan
IPC分类号： H04B7/216
CPC分类号： H04W24/10 , H04B7/0417 , H04B7/0452 , H04B7/0469 , H04B7/0486 , H04B7/0626 , H04B7/063 , H04B7/065
摘要： A method implemented in a user equipment configured to be used in a multi-user (MU) multiple-input multiple-output (MIMO) wireless communications system is disclosed. In an aspect, the user equipment transmits to a base station a first channel state information (CSI) report determined according to a single-user (SU) MIMO rule and a second CSI report determined according to an MU-MIMO rule.
摘要翻译：公开了一种在配置成在多用户（MU）多输入多输出（MIMO）无线通信系统中使用的用户设备中实现的方法。一方面，用户设备向基站发送根据单用户（SU）MIMO规则确定的第一信道状态信息（CSI）报告和根据MU-MIMO规则确定的第二CSI报告。

9. 发明授权

US08718156B2 Indexing methods and systems 有权
标题翻译：索引方法和系统
公开(公告)号：US08718156B2
公开(公告)日：2014-05-06
申请号：US12940777
申请日：2010-11-05
申请人： Mohammad A. Khojastepour , Sampath Rangarajan
发明人： Mohammad A. Khojastepour , Sampath Rangarajan
IPC分类号： H04K1/10 , H04L27/28
CPC分类号： H04L27/28 , H04L5/0051 , H04L5/0053 , H04L5/0094 , H04L27/30
摘要： Methods and systems for indexing signal option selections are disclosed. The signal options can be any of a variety of options that permit the establishment of a communication link, including modulation format, coding rate, precoding index and assigned subbands. The selected options can be represented as a vector and the index can be determined by employing a worth function for a particular selected vector element that is dependent on a selection occurrence count of the element and on an element position count of the element. In particular, the index can be the summation of worth function values for each selected element.
摘要翻译：公开了索引信号选项选择的方法和系统。信号选项可以是允许建立通信链路的各种选项中的任一种，包括调制格式，编码率，预编码索引和分配的子带。所选择的选项可以被表示为向量，并且可以通过对依赖于元素的选择发生次数和元素的元素位置计数的特定选定向量元素采用值函数来确定索引。特别地，索引可以是每个选定元素的值函数值的总和。

10. 发明授权

US08660030B2 High performance and low complexity scheduling method for adaptive resource usage in OFDMA wireless relay networks 有权
标题翻译： OFDMA无线中继网络中自适应资源使用的高性能和低复杂度调度方法
公开(公告)号：US08660030B2
公开(公告)日：2014-02-25
申请号：US13192878
申请日：2011-07-28
申请人： Karthikeyan Sundaresan , Sampath Rangarajan
发明人： Karthikeyan Sundaresan , Sampath Rangarajan
IPC分类号： H04L12/28 , H04J1/16
CPC分类号： H04W72/1205 , H04B7/2606 , H04L5/0007 , H04L5/0037 , H04L5/0064 , H04W28/06 , H04W84/047
摘要： A method for scheduling transmissions in wireless network includes receiving information ranging from conventional data to real-time streaming applications into a basestation of an OFDMA wireless relay network and scheduling transmission of the information from the basestation by influencing adaptive frame segmentation and access hop reuse in the transmission of the information for achieving higher transmission flow of the information, Where the scheduling is formulated as an integer program, the scheduling includes solving a linear programming relaxation of the integer program and rounding to integral allocations with allocation to at least one of a subset of wireless users and subsets of relays in the network for obtaining frame segmentation and reuse. Where the scheduling is formulated by following a bisection approach to guide adaptation of the frame segmentation, the scheduling determines a subset of users with maximum flow per unit resource for a given frame segmentation and the resulting flow from current and previous scheduling being used to guide adaptation of frame segmentation towards convergence.
摘要翻译：一种用于在无线网络中调度传输的方法包括从常规数据到实时流应用的接收信息到OFDMA无线中继网络的基站，并且通过影响自适应帧分段和接入跳跃重用来调度来自基站的信息传输用于实现信息的更高传输流的信息的传输在其中将调度表达为整数程序的情况下，调度包括求解整数程序的线性规划松弛和舍入到整数分配，并将其分配给以下各项中的至少一个：无线用户和网络中的继电器子集，用于获得帧分割和重用。在通过遵循用于引导帧分段的适应的二分法来制定调度的情况下，调度确定用于给定帧分段的每单位资源的最大流量的用户的子集，并且来自当前和先前调度的结果流用于指导适应的帧分割趋向于收敛。

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