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17 条记录 (耗时 0.051 秒)

    Rate selection in adaptive data rate systems
    11.
    发明授权
    Rate selection in adaptive data rate systems 失效
    自适应数据速率系统中的速率选择

    公开(公告)号：US06252854B1

    公开(公告)日：2001-06-26

    申请号：US08966914

    申请日：1997-11-12

    申请人： Peter Dirk Hortensius ,  Parviz Kermani ,  Babak Rezvani ,  Mahmoud Naghshineh ,  Claus Michael Olsen

    发明人： Peter Dirk Hortensius ,  Parviz Kermani ,  Babak Rezvani ,  Mahmoud Naghshineh ,  Claus Michael Olsen

    IPC分类号： G01R3108

    CPC分类号： H04L1/08 ,  H04L2001/0098

    摘要： Rate management in adaptive data rate wireless communication systems in which communicating stations move with respect to one another implements algorithms for calculation of the repetition rate. A rate management module is used for selecting a proper value of repetition rate to be communicated back to sending station and for a selecting proper value of repetition rate to encode the data at the sending station. The repetition rate calculation procedure enables each station to dynamically calculate the optimum rate with which each station should be receiving information from another station. The repetition rate calculation procedures take into consideration past and present measurements of the link quality, age of the link quality measurements, speed of change in the link quality, packet types, packet lengths, received signal strength, and pattern and correlation in the link quality measurements. The rate management module utilizes one or more tables which are accessible from either hardware or software.

    摘要翻译： 其中通信站相对于彼此移动的自适应数据速率无线通信系统中的速率管理实现了重复率计算的算法。 速率管理模块用于选择要传送回发送站的重复率的适当值，以及选择适当的重复率值以对发送站进行数据编码。 重复率计算程序使得每个站能够动态地计算每个站应该从另一个站接收信息的最佳速率。 重复率计算过程考虑了链路质量的过去和现在的测量，链路质量测量的年龄，链路质量的变化速度，分组类型，分组长度，接收信号强度以及链路质量中的模式和相关性 测量。 速率管理模块利用可以从硬件或软件访问的一个或多个表。

    Apparatus and Method for Identifying Process Elements
    14.
    发明申请
    Apparatus and Method for Identifying Process Elements 失效
    识别过程要素的装置和方法

    公开(公告)号：US20080177586A1

    公开(公告)日：2008-07-24

    申请号：US11625596

    申请日：2007-01-22

    申请人： Hani T. Jamjoom ,  Raymond B. Jennings ,  Parviz Kermani ,  Debanjan Saha

    发明人： Hani T. Jamjoom ,  Raymond B. Jennings ,  Parviz Kermani ,  Debanjan Saha

    IPC分类号： G06Q10/00

    CPC分类号： G06Q10/06

    摘要： An exemplary method for identifying process elements includes the steps of obtaining a plurality of relevant request-response pairs including request identifiers, mapping the request identifiers to corresponding artifacts, identifying actions based on the artifacts, and mapping the actions to process elements such that each given one of the process elements has an associated artifact

    摘要翻译： 用于识别过程元素的示例性方法包括以下步骤：获得多个相关的请求 - 响应对，包括请求标识符，将请求标识符映射到对应的工件，基于工件识别动作，以及将操作映射到处理元件，使得每个给定 其中一个进程元素具有关联的工件

    Balanced media access methods for wireless networks
    15.
    发明授权
    Balanced media access methods for wireless networks 失效
    平衡无线网络的媒体访问方式

    公开(公告)号：US6118788A

    公开(公告)日：2000-09-12

    申请号：US950748

    申请日：1997-10-15

    申请人： Parviz Kermani ,  Babak Rezvani ,  Mahmoud Naghshineh ,  Claus Michael Olsen ,  Timucin Ozugur

    发明人： Parviz Kermani ,  Babak Rezvani ,  Mahmoud Naghshineh ,  Claus Michael Olsen ,  Timucin Ozugur

    IPC分类号： H04L12/56 ,  H04L12/43

    CPC分类号： H04L12/5602

    摘要： Fairness algorithms and access methods enable non-zero channel access for wireless communication systems operating in a random access channel environment. Fair access to a random access channel for each station in a wireless network is assured by each station calculating a priority or probability for accessing the channel based on logical connections among certain stations, based on other stations perception of the channel and based on each calculating station's own perception of the channel properties.

    摘要翻译： 公平算法和访问方法使得在随机接入信道环境中操作的无线通信系统的非零信道接入。 通过每个站基于其他站对该信道的感知并基于每个计算站的等级来计算基于某些站之间的逻辑连接的信道的优先级或概率来确保对无线网络中的每个站的随机接入信道的公平接入 自己对渠道属性的看法。

    Extensions to distributed MAC protocols with collision avoidance using RTS/CTS exchange
    16.
    发明授权
    Extensions to distributed MAC protocols with collision avoidance using RTS/CTS exchange 失效
    使用RTS / CTS交换的具有防冲突的分布式MAC协议的扩展

    公开(公告)号：US5844905A

    公开(公告)日：1998-12-01

    申请号：US677145

    申请日：1996-07-09

    申请人： Danny Neil McKay ,  Mahmoud Naghshineh ,  Claus Michael Olsen ,  Babak Rezvani ,  Parviz Kermani ,  Peter Dirk Hortensius

    发明人： Danny Neil McKay ,  Mahmoud Naghshineh ,  Claus Michael Olsen ,  Babak Rezvani ,  Parviz Kermani ,  Peter Dirk Hortensius

    IPC分类号： H04B7/26 ,  H04L12/28 ,  H04L12/413 ,  H04L12/56

    CPC分类号： H04W74/0816 ,  H04L12/413

    摘要： The throughput of a Request-to-Send and Clear-to-Send (RTS/CTS) based distributed media access control protocol is improved by reserving the medium in a hierarchical fashion. The shared medium is reserved for two stations called the participants. During the reserved period, a master (or primary) attribute and a slave (or secondary) attribute are given to the participants and the medium is shared between them using any suitable coordination algorithm. During the reserved time, the secondary can signal the primary station that it has data to send to the primary station and request that the primary and secondary roles or attributes be exchanged. In the case that a role exchange takes place, control of the medium is transferred from one station to another and data transfer in an opposite direction can take place without requiring another reservation. Observing stations which are not participating in the reservation can be invited to join the reservation as additional secondary stations if this does not cause any interference to any other existing reservations. The efficiency of the medium reservation may be improved also by piggy-backing any reservation specific signals onto data packets and by defining new response frames such as Hold-to-Send (HTS) and Free-to-Send (FTS) for flow control when there is a congested receiving station.

    摘要翻译： 通过以分层方式保留介质，改进了基于请求发送和清除发送（RTS / CTS）的分布式媒体访问控制协议的吞吐量。 共享介质保留给两个称为参与者的站。 在保留期间，向参与者提供主（或主）属性和从属（或辅助）属性，并且使用任何合适的协调算法在它们之间共享介质。 在保留时间内，辅助信号可以向主站发信号通知主站具有要发送到主站的数据，并请求交换主要和次要角色或属性。 在发生角色交换的情况下，媒体的控制从一个站转移到另一个站，并且可以发生相反方向的数据传输，而不需要另外的预留。 如果不对任何其他现有保留造成任何干扰，可以邀请不参加保留的观察站作为附加的次级站加入预约。 媒体预约的效率也可以通过将任何预留特定信号捎带到数据分组上，并通过定义新的响应帧（例如保持发送（HTS）和自由发送（FTS））来进行流量控制） 有一个拥挤的接收站。

    Control flow reduction in selective repeat protocols
    17.
    发明授权
    Control flow reduction in selective repeat protocols 失效
    选择性重复协议中控制流减少

    公开(公告)号：US5319648A

    公开(公告)日：1994-06-07

    申请号：US297441

    申请日：1989-01-13

    申请人： Werner K. Bux ,  Parviz Kermani ,  Wolfgang B. Kleinoeder

    发明人： Werner K. Bux ,  Parviz Kermani ,  Wolfgang B. Kleinoeder

    IPC分类号： H04L29/08 ,  H04L1/00 ,  H04L1/16 ,  H04L1/18 ,  H04L29/06 ,  G08C25/02

    CPC分类号： H04L1/0083 ,  H04L1/1685 ,  H04L1/1809 ,  H04L29/06 ,  H04L1/16

    摘要： In the Checkpoint Mode Protocol (CPM), checkpoint frames are transmitted at regular intervals for acknowledging received information frames and individually requesting retransmission of missing information frames. The disclosed invention reduces the flow of checkpoint frames in situations where their information is not required. This is achieved by either sending a Stop Checkpointing frame from sender to receiver in particular situations, or by inserting, in the case of duplex transmission (i.e. both stations are sending and receiving), Request-Reply bits into normal checkpoint frames for suppressing the flow of checkpoint frames when they are not necessary. In each case, provisions are made to resume the transmission of checkpoint frames as soon as they are required again.

    摘要翻译： 在检查点模式协议（CPM）中，以规则的间隔发送检查点帧，以确认接收到的信息帧并单独请求丢失信息帧的重传。 所公开的发明在不需要其信息的情况下减少了检查点帧的流动。 这通过在特定情况下发送到发送者到接收者的停止检查帧来实现，或者在双工传输（即，两个站正在发送和接收）的情况下，将请求 - 应答位插入用于抑制流的正常检查点帧 检查点框架不需要时。 在每种情况下，都要作出规定，一旦再次要求恢复检查点框的传输。