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    • 2. 发明申请
    • Method for sharing bandwidth using reduced duty cycle signals and media access control
    • 使用减少的占空比信号和媒体访问控制共享带宽的方法
    • US20060203795A1
    • 2006-09-14
    • US11128269
    • 2005-05-13
    • Matthew WelbornWilliam ShvodianJoel ApisdorfTimothy MillerJohn McCorkle
    • Matthew WelbornWilliam ShvodianJoel ApisdorfTimothy MillerJohn McCorkle
    • H04J3/24H04L12/43H04J3/00H01Q11/12H04B1/04
    • H04W52/367H04B1/7176H04W52/286H04W72/12
    • A method is provided for transmitting data. A first device (121) generates a first signal (320) having a first duty cycle, comprising a first gated-on portion (323) and a first gated-off portion (363) in a time slot (260); and a second device (125) generates a second signal (330) having second duty cycle, comprising a second gated-on portion (333) and a second gated-off portion (363) in the same time slot (260). The first gated-on portion (323) is generated during a first segment of the time slot (260) and the first gated-off portion (363) is generated during a second segment of the time slot (260), while the second gated-on portion (333) is generated during the second segment and the second gated-off portion (363) is generated during the first segment. Media access control (MAC) can be used to further define positions within time slots (250) and provide error correction, power control, and the like. A preamble (860) can be transmitted at an increased power level to facilitate acquisition.
    • 提供了一种用于传输数据的方法。 第一装置(121)产生具有第一占空比的第一信号(320),包括在时隙(260)中的第一选通部分(323)和第一门控部分(363); 并且第二装置(125)产生具有第二占空比的第二信号(330),该第二信号包括在同一时隙(260)中的第二选通部分(333)和第二选通部分(363)。 在时隙(260)的第一段期间产生第一选通部分(323),并且在时隙(260)的第二段期间产生第一选通部分(363),而第二门控 在第二段期间产生部分(333),并且在第一段期间产生第二门控部分(363)。 媒体访问控制(MAC)可用于进一步定义时隙内的位置(250),并提供纠错,功率控制等。 可以以增加的功率电平发送前导码(860)以便于采集。
    • 3. 发明申请
    • System and method for synchronization of isochronous data streams over a wireless communication link
    • 通过无线通信链路同步等时数据流的系统和方法
    • US20070100473A1
    • 2007-05-03
    • US10562032
    • 2004-07-01
    • William ShvodianJoel Apisdorf
    • William ShvodianJoel Apisdorf
    • G05B11/01
    • H04W56/009H04B1/7183H04J3/0632H04L7/0091H04L69/28H04W56/00
    • A transmitter (500) is provided for transmitting host data over a wireless channel. The transmitter (500) includes a free-running timer (560) that provides a series of increasing free-running timing values; a host interface circuit (510) that receives host data from a local host circuit and a first free-running timing value from the series of increasing free-running timing values; a detection circuit (530) for detecting a global synchronizing event and receiving a second free-running timing value from the series of increasing free-running timing values, and for placing the host data and the first free-running timing value into a host interface packet; and a wireless transceiver (530) for adding the second free-running timing value and an identifier for the global synchronizing event to the host interface packet to form an air link frame, and transmitting the air link frame over a wireless channel to a remote wireless device.
    • 提供了一种用于通过无线信道发送主机数据的发射机(500)。 发射机(500)包括自由运行定时器(560),其提供一系列增加的自由运行定时值; 主机接口电路(510),其从所述一系列增加的自由运行定时值接收来自本地主机电路的主机数据和第一自由运行定时值; 检测电路(530),用于检测全局同步事件并从一系列增加的自由运行定时值接收第二自由运行定时值,并将主机数据和第一自由运行定时值放入主机接口 包; 以及用于将第二自由运行定时值和用于全局同步事件的标识符添加到主机接口分组以形成空中链路帧的无线收发器(530),以及通过无线信道将空中链路帧发送到远程无线 设备。
    • 4. 发明申请
    • Method for sharing bandwidth using reduced duty cycle signals
    • 使用减少的占空比信号共享带宽的方法
    • US20060114879A1
    • 2006-06-01
    • US10998572
    • 2004-11-30
    • Matthew WelbornWilliam Shvodian
    • Matthew WelbornWilliam Shvodian
    • H04B7/212H04J3/00
    • H04J3/1647H04B1/71632H04L27/02H04W52/04H04W72/1263
    • A method is provided for transmitting data. A first device (121) generates a first signal (320) having a first duty cycle, comprising a first gated-on portion (323) and a first gated-off portion (363) in a time slot (260); and a second device (125) generates a second signal (330) having second duty cycle, comprising a second gated-on portion (333) and a second gated-off portion (363) in the same time slot (260). The first gated-on portion (323) is generated during a first segment of the time slot (260) and the first gated-off portion (363) is generated during a second segment of the time slot (260), while the second gated-on portion (333) is generated during the second segment and the second gated-off portion (363) is generated during the first segment. The first and second duty cycles are individually below 100%, and the sum of the first and second duty cycles is below 100%.
    • 提供了一种用于传输数据的方法。 第一装置(121)产生具有第一占空比的第一信号(320),包括在时隙(260)中的第一选通部分(323)和第一门控部分(363); 并且第二装置(125)产生具有第二占空比的第二信号(330),该第二信号包括在同一时隙(260)中的第二选通部分(333)和第二选通部分(363)。 在时隙(260)的第一段期间产生第一选通部分(323),并且在时隙(260)的第二段期间产生第一选通部分(363),而第二门控 在第二段期间产生部分(333),并且在第一段期间产生第二门控部分(363)。 第一和第二占空比分别低于100%,第一和第二占空比的总和低于100%。
    • 5. 发明申请
    • System and method of interleaving transmitted data
    • 交织数据的系统和方法
    • US20060259843A1
    • 2006-11-16
    • US11128268
    • 2005-05-13
    • Matthew WelbornWilliam Shvodian
    • Matthew WelbornWilliam Shvodian
    • H04L1/00H03M13/00G08C25/00G06F11/00G06F11/30
    • H03M13/2732H04L1/0041H04L1/0071
    • A method (500) is provided for operating an interleaver circuit 120 having N shift lines (2201-220N). Each shift line has a line input node, a line output node, and one or more bit storage elements (240). The method includes: storing don't-care bits in each bit storage element (520); isolating the line output nodes from an interleaver output node (520); receiving a stream of data bits at an interleaver input node (530); and sequentially connecting the interleaver input node to respective line input nodes to shift the stream of data bits into the bit storage elements of corresponding shift lines in an interleaved fashion (530). A don't-care bit is shifted out of each of the bit storage elements in corresponding shift lines as each data bit is shifted in. A last don't-care bit is shifted out of respective bit storage elements in the shift lines during N consecutively-received data bits.
    • 提供了一种方法(500),用于操作具有N个移位线(220 <! - SIPO - > N)的交织器电路120。 每个移位线具有线路输入节点,线路输出节点和一个或多个比特存储元件(240)。 该方法包括:将不需要的位存储在每个位存储元件(520)中; 将线路输出节点与交织器输出节点(520)隔离; 在交织器输入节点处接收数据比特流(530); 以及顺序地将交织器输入节点连接到相应的行输入节点,以将数据位流以交错方式移位到相应移位行的位存储元件中(530)。 当每个数据位被移入时,不必要的位从相应的移位行中的每个位存储元件中移出。最后一个不关心位在移位行中从相应的位存储元件中移出, N个连续接收的数据位。
    • 6. 发明申请
    • System and method for low power clear channel assessment
    • 低功率清除通道评估的系统和方法
    • US20050036571A1
    • 2005-02-17
    • US10873422
    • 2004-06-23
    • William ShvodianRichard Roberts
    • William ShvodianRichard Roberts
    • H04B1/69H04L25/03H04L25/49H04L27/00H04L27/02H04L27/20H04L27/227
    • H04B1/69H04L25/03866H04L25/4902H04L27/0004H04L27/02H04L27/2042H04L27/2278
    • A method is provided for performing a clear channel assessment in a local device. The local device receives signal energy in a wireless channel and splits the received signal energy into a real portion and an imaginary portion. It determines a real portion of a squared signal energy by subtracting a squared imaginary portion of the signal energy from a squared real portion of the signal energy, and determines an imaginary portion of the squared signal energy by calculating twice the product of the real and imaginary portions of the signal energy. It can perform a signal detection function on the real and imaginary portions of the squared signal energy to produce a clear channel assessment signal that indicates whether a set signal type is present in the wireless channel. This clear channel assessment signal can be used to determine whether the local device should remain in a low-power mode.
    • 提供了一种在本地设备中执行清晰的信道评估的方法。 本地设备在无线信道中接收信号能量,并将接收的信号能量分解成实部和虚部。 它通过从信号能量的平方实部分减去信号能量的平方虚部来确定平方信号能量的实部,并且通过计算实数和虚数的乘积的两倍来确定平方信号能量的虚部 部分信号能量。 它可以对平方信号能量的实部和虚部执行信号检测功能,以产生指示无线信道中是否存在设置信号类型的清晰信道评估信号。 这个清晰的信道评估信号可用于确定本地设备是否应保持在低功率模式。
    • 7. 发明申请
    • Method for polling in a medium access control protocol
    • 在媒体访问控制协议中轮询的方法
    • US20060159118A1
    • 2006-07-20
    • US11036133
    • 2005-01-18
    • William ShvodianSanjeev Sharma
    • William ShvodianSanjeev Sharma
    • H04L12/40H04L12/403
    • H04W74/06H04L12/403
    • A method is provided for a master device (601) to allocate channel time. The master device sends a polling frame (240) to a current destination slave device (602) and a current polled slave device (603). The polling frame includes a current destination slave device address (350), a current polled slave device address (360), and a current payload (330). The master device receives a poll acknowledgement frame (280) if the current polled slave device does not wish to transmit data. However, if no poll acknowledgement frame is received, the master device waits for a set duration then sets the current destination device address to be equal to a new destination device address, sets the current polled device address to be equal to a new polled slave device address, and sets a current payload to be equal to a new payload. This can be repeated until a channel time allocation ends.
    • 提供了一种用于主设备(601)分配信道时间的方法。 主设备向当前目的从设备(602)和当前轮询的从设备(603)发送轮询帧(240)。 轮询帧包括当前目的地从设备地址(350),当前轮询的从设备地址(360)和当前有效载荷(330)。 如果当前轮询的从设备不希望发送数据,则主设备接收轮询确认帧(280)。 然而,如果没有接收到轮询确认帧,则主设备等待设定的持续时间,然后将当前目的地设备地址设置为等于新的目的地设备地址,将当前轮询设备地址设置为等于新的轮询从设备 地址,并将当前有效负载设置为等于新的有效载荷。 这可以重复,直到通道时间分配结束。
    • 9. 发明申请
    • Method for providing rapid delayed frame acknowledgement in a wireless transceiver
    • 用于在无线收发器中提供快速延迟帧确认的方法
    • US20060035589A1
    • 2006-02-16
    • US10918457
    • 2004-08-16
    • William Shvodian
    • William Shvodian
    • H04B7/14
    • H04L1/1858
    • A method (1200) is provided for allowing delayed acknowledgement in a local wireless transceiver. In this method the local transceiver (324) receives n data frames (1000) from a remote wireless transceiver (322), each data frame (1000) including a set of acknowledgement policy bits, which indicate a desired acknowledgement policy for the respective data frame (1000). The first (n—1) data frames (811-814) indicate an acknowledgement policy of delayed acknowledgement with no acknowledgement requested, while the final data frame (815) indicates an acknowledgement policy of delayed acknowledgement with acknowledgement requested. In response to the acknowledgement policy of the last data frame (815), the local transceiver (324) sends a delayed acknowledgement response frame (1135) to the remote wireless transceiver (322). This delayed acknowledgement response frame (1135) includes frame identifiers for the first (n−1) data frames (811-814), but does not include a frame identifier for the last data frame (815).
    • 提供了一种用于在本地无线收发器中允许延迟确认的方法(1200)。 在该方法中,本地收发器(324)从远程无线收发器(322)接收n个数据帧(1000),每个数据帧(1000)包括一组确认策略位,其指示相应数据帧的期望的确认策略 (1000)。 第一(n-1)个数据帧(811-814)指示没有请求确认的延迟确认的确认策略,而最终数据帧(815)指示具有确认请求的延迟确认的确认策略。 响应于最后数据帧(815)的确认策略,本地收发器(324)向远程无线收发器(322)发送延迟确认响应帧(1135)。 该延迟确认响应帧(1135)包括第一(n-1)个数据帧(811-814)的帧标识符,但不包括最后数据帧(815)的帧标识符。
    • 10. 发明申请
    • Method and system for acknowledging frames in a communication network
    • 在通信网络中确认帧的方法和系统
    • US20070079208A1
    • 2007-04-05
    • US11231886
    • 2005-09-22
    • William Shvodian
    • William Shvodian
    • H04L1/18
    • H04L1/1607
    • A communication device (1001) is provided. The communication device (1001) can include a transceiver (1003), for transmitting and receiving communications when operably connected to a communication network. Also, the communication device (1001) can include a processor (1009) cooperatively operable with the transceiver (1003). The processor (1009) can facilitate receiving (1015) one or more frames from a transmitting device. Also, the processor (1009) can obtain a frame check sequence result (1019). Before obtaining the frame check sequence result, the processor can initiate (1017) a transmission of a responsive frame corresponding to the one or more frames. The responsive frame will explicitly indicate an acknowledgement (ACK) or negative acknowledgement (NAK) of the one or more frames.
    • 提供通信设备(1001)。 通信设备(1001)可以包括用于在可操作地连接到通信网络时发送和接收通信的收发器(1003)。 此外,通信设备(1001)可以包括可与收发器(1003)协同工作的处理器(1009)。 处理器(1009)可以有助于从发送设备接收(1015)一个或多个帧。 此外,处理器(1009)可以获得帧校验序列结果(1019)。 在获得帧校验序列结果之前,处理器可以启动(1017)对应于一个或多个帧的响应帧的传输。 响应帧将明确地指示一个或多个帧的确认(ACK)或否定确认(NAK)。