Distributed method and apparatus for allocating a communication medium

    公开(公告)号:US07079547B2

    公开(公告)日:2006-07-18

    申请号:US10150110

    申请日:2002-05-20

    IPC分类号: H04L12/66

    CPC分类号: H04L12/413

    摘要: The invention provides a method and apparatus for end-users to allocate a communication medium locally without requiring a central arbitration device while guaranteeing access to the end-users. The end-users bid for control of an upstream data channel by concurrently transmitting auction data and address data on a first upstream signaling channel and a second upstream signaling channel. An end-user gains control of the upstream data channel when data received from the first and second downstream signaling channels match the auction and address bits. When it is determined that the end-user lost the bid, the end-user backs off from the first and second upstream signaling channels and refrains from bidding until the first and second upstream signaling channels become quiet.

    Virtual clear channel avoidance (CCA) mechanism for wireless communications
    73.
    发明申请
    Virtual clear channel avoidance (CCA) mechanism for wireless communications 有权
    用于无线通信的虚拟通道回避(CCA)机制

    公开(公告)号:US20050226270A1

    公开(公告)日:2005-10-13

    申请号:US10823102

    申请日:2004-04-13

    申请人: Yonghe Liu Xiaolin Lu

    发明人: Yonghe Liu Xiaolin Lu

    IPC分类号: H04J3/16 H04L12/28 H04L12/56

    摘要: An arrangement avoids contention on a communication medium among devices including at least a transmitter and a receiver. The arrangement involves a first portion configured to instruct a receiver to indicate that the communication medium is busy for a time period substantially longer than an actual frame transmission period being sent from the transmitter to the receiver, and a second portion configured to prohibit the receiver from transmitting on the communication medium during the time period.

    摘要翻译: 一种装置避免了在包括至少发射机和接收机的设备之间的通信介质上的竞争。 该装置包括:第一部分,被配置为指示接收机指示通信介质正忙于一段时间段,该时间段实质上长于从发射机发送到接收机的实际帧传输周期;以及第二部分,被配置为禁止接收机 在该时间段内在通信介质上进行发送。

    MDSL host interface requirement specification
    75.
    发明授权
    MDSL host interface requirement specification 失效
    MDSL主机接口要求规范

    公开(公告)号:US5910970A

    公开(公告)日:1999-06-08

    申请号:US739398

    申请日:1996-10-31

    申请人: Xiaolin Lu

    发明人: Xiaolin Lu

    摘要: A modem that operates selectively in the voice-band frequency band and higher frequency bands is provided. This modem supports multiple line codes, like DMT and CAP. The modem uses a Digital Signal Processor (DSP), so that different existing ADSL line codes, such as Discrete MultiTone (DMT) and Carrierless AM/PM (CAP), can be implemented on the same hardware platform. The modem employs a method for interfacing the modem hardware with a host operating system. The method calls a defined set of host interface functions for command/control, calls a defined set of host interface functions for link correction management, calls a defined set of host interface functions for data sending/receiving, calls a defined set of host interface functions for synchronization between voice-band audio and above voice-band audio, and calls a defined set of host interface functions to use the voice-band as control channel and above voice-band as a data channel.

    摘要翻译: 提供了在话音频带和更高频带中有选择地操作的调制解调器。 该调制解调器支持多种线路代码,如DMT和CAP。 调制解调器使用数字信号处理器(DSP),因此可以在相同的硬件平台上实现不同的现有ADSL线路码,如离散多音(DMT)和无载波AM / PM(CAP)。 调制解调器采用将调制解调器硬件与主机操作系统进行接口的方法。 该方法调用一组用于命令/控制的主机接口功能,调用一组定义的主机接口功能进行链路校正管理,调用定义的一组主机接口功能进行数据发送/接收,调用一组定义的主机接口功能 用于语音频带音频和上述语音频带音频之间的同步,并且呼叫一组定义的主机接口功能,以使用语音频带作为控制信道,并将上述语音频带作为数据信道。

    Wavelength-division-multiplexed network having broadcast capability
    76.
    发明授权
    Wavelength-division-multiplexed network having broadcast capability 失效
    具有广播能力的波分复用网络

    公开(公告)号:US5880865A

    公开(公告)日:1999-03-09

    申请号:US759743

    申请日:1996-12-03

    摘要: A Wavelength-Division-Multiplexed (WDM) network provides delivery of both switched services and broadcast analog video over optical facilities through an intermediate optical apparatus (e.g., Passive Optical Network (PON)) splitter to a plurality of remote optical apparatuses (e.g., optical-network units (ONUs)). The broadcast signal is provided to only a selected ONU, together with the switched service signal for that selected ONU, the selected ONU then distributes the broadcast signal to other ONUs over a separate distribution facility interconnecting the ONUs.

    摘要翻译: 波分复用(WDM)网络通过中间光学设备(例如,被动光网络(PON))分离器向多个远程光学设备(例如,光学器件)提供交换服务和广播模拟视频通过光学设备的传送 网络单元(ONU))。 广播信号仅与所选择的ONU一起提供给所选择的ONU的切换服务信号,然后所选择的ONU通过互连ONU的单独的分发设备将广播信号分配给其他ONU。

    Network apparatus and method for providing two way broadband
communications
    77.
    发明授权
    Network apparatus and method for providing two way broadband communications 失效
    用于提供双向宽带通信的网络设备和方法

    公开(公告)号:US5528582A

    公开(公告)日:1996-06-18

    申请号:US282247

    申请日:1994-07-29

    CPC分类号: H04N7/17309

    摘要: A communication network (e.g., a coax network or an optical fiber network) comprises a signal distribution network (e.g., fiber node FN) for transmitting communication signals downstream over a first communication path to a plurality of end user apparatuses connected thereto. At least one end user apparatus is arranged for sending the return signals downstream over at least part of the first communication path to a converter apparatus which collects the return signals and converts them to an upstream signal for transmission over a second separate communication path to the distribution unit.

    摘要翻译: 通信网络(例如,同轴电缆或光纤网络)包括用于将第一通信路径下行的通信信号发送到与其连接的多个终端用户设备的信号分配网络(例如,光纤节点FN)。 至少一个最终用户装置被布置为用于将第一通信路径的至少一部分上的返回信号发送到收集返回信号的转换器装置,并将它们转换为上行信号,以在通过第二分离通信路径发送到分布 单元。

    Limiting the number of unexpected wakeups in a computer system implementing a power-saving preemptive wakeup method from historical data
    78.
    发明授权
    Limiting the number of unexpected wakeups in a computer system implementing a power-saving preemptive wakeup method from historical data 有权
    限制在历史数据中实施省电优先唤醒方法的计算机系统中意外唤醒的次数

    公开(公告)号:US08775838B2

    公开(公告)日:2014-07-08

    申请号:US13363949

    申请日:2012-02-01

    IPC分类号: G06F1/32 G06F11/34 G06F9/48

    摘要: Dynamically reducing power consumption by a processor in a computer system by determining a maximum number of times (token count) that the processor can incur a start-up delay after being placed into a low-power mode during a token period of time when executing a task for a token period of time. The processor may be placed into the low-power mode while executing the task in response to an idle indicator only if a current value of the token count assigned to the task is greater than zero. The current value of the token count is decremented each time the processor incurs a start-up delay in response to being awakened from the low-power mode. The current token count is reset to match the assigned token count at the end of each token period. Furthermore, wakeup may be anticipated to allow the processor to be awakened preemptively.

    摘要翻译: 在计算机系统中通过确定处理器在执行一个令牌周期之后放入低功率模式之后可以引起启动延迟的最大次数(令牌计数)来动态地减少计算机系统中的处理器的功耗。 任务为令牌的一段时间。 只有当分配给任务的令牌计数的当前值大于0时,处理器才可以响应于空闲指示符而执行任务而被置于低功率模式。 每当处理器响应于从低功率模式唤醒而引起启动延迟时,令牌计数的当前值递减。 当前令牌计数被重置为与每个令牌周期结束时分配的令牌计数相匹配。 此外,可以预期唤醒以允许处理器被抢先地唤醒。

    Advertized power-save modes for different traffic conditions
    79.
    发明授权
    Advertized power-save modes for different traffic conditions 有权
    广告省电模式,适用于不同的交通状况

    公开(公告)号:US08717959B2

    公开(公告)日:2014-05-06

    申请号:US13362491

    申请日:2012-01-31

    IPC分类号: H04B1/16 G08C17/00

    摘要: In at least some embodiments, a wireless communication device includes a transceiver having control logic to detect traffic conditions for a communication group and to enter different power-save modes for different traffic conditions. The control logic is configured to advertize a first power-save mode to the communication group in response to a first detected traffic condition, to advertize a second power-save mode to the communication group in response to a second detected traffic condition, and to advertize a third power-save mode to the communication group in response to a third detected traffic condition.

    摘要翻译: 在至少一些实施例中,无线通信设备包括具有控制逻辑的收发器,用于检测通信组的通信状况,并为不同的业务状况输入不同的省电模式。 控制逻辑被配置为响应于第一检测到的业务状况向通信组发布第一省电模式,以响应于第二检测到的业务状况向通信组通告第二节能模式,并且通告 响应于第三检测到的交通状况向通信组提供第三省电模式。

    Power state and medium access coordination in coexisting wireless networks
    80.
    发明授权
    Power state and medium access coordination in coexisting wireless networks 有权
    并网无线网络中的电力状态和媒体访问协调

    公开(公告)号:US08670362B2

    公开(公告)日:2014-03-11

    申请号:US13190858

    申请日:2011-07-26

    IPC分类号: G08C17/00

    摘要: Apparatus and method for improving throughput in a wireless device accessing coexisting networks. In one embodiment, a wireless device includes first and second wireless transceivers, a power state controller, and an access controller. The first wireless transceiver is configured to access a first wireless network. The second wireless transceiver is configured to access a second wireless network. The power state controller is configured to switch the first wireless transceiver between an active state and a sleep state. The power consumed by the first wireless transceiver while in the sleep state is reduced relative to the active state. The access controller is configured to alternately allocate a wireless medium to the first wireless transceiver and the second wireless transceiver. The power state controller and the medium access controller are configured to coordinate power state switching of the first wireless transceiver and wireless medium access by the second wireless transceiver.

    摘要翻译: 用于提高无线设备中访问共存网络的吞吐量的装置和方法。 在一个实施例中,无线设备包括第一和第二无线收发器,电源状态控制器和访问控制器。 第一无线收发器被配置为访问第一无线网络。 第二无线收发器被配置为访问第二无线网络。 电源状态控制器被配置为在主动状态和睡眠状态之间切换第一无线收发器。 处于睡眠状态时,第一无线收发器消耗的功率相对于活动状态减小。 访问控制器被配置为交替地向第一无线收发器和第二无线收发器分配无线介质。 电源状态控制器和介质访问控制器被配置为协调第一无线收发器的功率状态切换和第二无线收发器的无线介质访问。