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公开(公告)号：US20130170531A1
公开(公告)日：2013-07-04
申请号：US13342258
申请日：2012-01-03
申请人： Victor Adut , Gregory M. Agami , Yun H. Kim , Wei Chuan Ma
发明人： Victor Adut , Gregory M. Agami , Yun H. Kim , Wei Chuan Ma
IPC分类号： H04B17/00
CPC分类号： H03H17/0628 , H03H17/0275
摘要： A system includes a polyphase multirate filter and a controller which, responsive to detecting a data stream: measures a current phase relationship between a current resampling filter input clock signal and a current multirate output clock signal; identifies, based on a mapping of the measured phase relationship within a pre-generated quantized mapping table, an initial polyphase filter coefficient index corresponding to the measured phase relationship; selects, based on the initial polyphase filter coefficient index identified, a corresponding polyphase filter component from within the multirate filter; configures the multirate filter to pass data from the data stream through the corresponding polyphase filter component to generate an initial output data sample; updates the initial polyphase filter coefficient index to a calculated next polyphase filter coefficient index value, in response to a request for generation of a next output data sample; and self-corrects the multirate filter responsive to a pre-identified error condition.
摘要翻译： 系统包括多相多速率滤波器和控制器，其响应于检测数据流：测量当前重采样滤波器输入时钟信号和当前多速率输出时钟信号之间的当前相位关系; 基于所测量的相位关系在预先生成的量化映射表内的映射来识别对应于所测量的相位关系的初始多相滤波器系数指数; 基于所识别的初始多相滤波器系数索引，选择来自多速率滤波器内的相应多相滤波器组件; 配置多速率滤波器以将来自数据流的数据通过相应的多相滤波器组件生成初始输出数据样本; 响应于产生下一个输出数据样本的请求，将初始多相滤波器系数索引更新为计算的下一个多相滤波器系数索引值; 并响应于预先识别的错误条件自我校正多速率滤波器。
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公开(公告)号：US08693601B2
公开(公告)日：2014-04-08
申请号：US13342258
申请日：2012-01-03
申请人： Victor Adut , Gregory M. Agami , Yun H. Kim , Wei Chuan Ma
发明人： Victor Adut , Gregory M. Agami , Yun H. Kim , Wei Chuan Ma
IPC分类号： H04B1/10
CPC分类号： H03H17/0628 , H03H17/0275
摘要： A system includes a polyphase multirate filter and a controller which, responsive to detecting a data stream: measures a current phase relationship between a current resampling filter input clock signal and a current multirate output clock signal; identifies, based on a mapping of the measured phase relationship within a pre-generated quantized mapping table, an initial polyphase filter coefficient index corresponding to the measured phase relationship; selects, based on the initial polyphase filter coefficient index identified, a corresponding polyphase filter component from within the multirate filter; configures the multirate filter to pass data from the data stream through the corresponding polyphase filter component to generate an initial output data sample; updates the initial polyphase filter coefficient index to a calculated next polyphase filter coefficient index value, in response to a request for generation of a next output data sample; and self-corrects the multirate filter responsive to a pre-identified error condition.
摘要翻译： 系统包括多相多速率滤波器和控制器，其响应于检测数据流：测量当前重采样滤波器输入时钟信号和当前多速率输出时钟信号之间的当前相位关系; 基于所测量的相位关系在预先生成的量化映射表内的映射来识别对应于所测量的相位关系的初始多相滤波器系数指数; 基于所识别的初始多相滤波器系数索引，选择来自多速率滤波器内的相应多相滤波器组件; 配置多速率滤波器以将来自数据流的数据通过相应的多相滤波器组件生成初始输出数据样本; 响应于产生下一个输出数据样本的请求，将初始多相滤波器系数索引更新为计算的下一个多相滤波器系数索引值; 并响应于预先识别的错误条件自我校正多速率滤波器。
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3.发明授权Method and apparatus for transmitting a superframe across a communication network 有权用于在通信网络上传输超帧的方法和装置公开(公告)号：US08116244B2
公开(公告)日：2012-02-14
申请号：US11612617
申请日：2006-12-19
CPC分类号： H04W72/005 , H04W4/08
摘要： A method and apparatus includes a scheduling entity (308) for scheduling and transmitting the superframe (402) across a communication network (200). The controller (310) coupled with scheduling entity (308) groups the subscriber unit (304) into one of the plurality of groups. The scheduler entity (308) assigns a coding scheme for each group and encodes each frame of the superframe (402) based upon the assigned coding scheme for the group, to which the frame is to be transmitted. The transceiver (316) coupled with controller (310) via hardware interface (314) receives the encoded superframe and transmits the superframe to the plurality of subscriber units in the communication network (200).
摘要翻译： 一种方法和装置包括：调度实体（308），用于跨越通信网络（200）调度和发送超帧（402）。 与调度实体（308）耦合的控制器（310）将用户单元（304）分组成多个组中的一个组。 调度器实体（308）为每个组分配编码方案，并根据为该帧要发送的组的分配的编码方案对超帧（402）的每个帧进行编码。 经由硬件接口（314）与控制器（310）耦合的收发器（316）接收经编码的超帧，并将该超帧发送到通信网络（200）中的多个用户单元。
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公开(公告)号：US20110249550A1
公开(公告)日：2011-10-13
申请号：US12758140
申请日：2010-04-12
IPC分类号： G06F11/07
CPC分类号： H04W56/0045
摘要： An apparatus and method for uplink time synchronization in a communication system includes a first step 602 of receiving uplink data from a user equipment. A next step 604 includes storing a time error of the uplink data along with a time stamp. A next step 620 includes integrating the time error to provide an accumulated time error. A next step 606, 626 includes dumping the accumulated time error upon the time stamps of the accumulated data meeting a timing condition. A next step 610 includes comparing the accumulated time error against a threshold. A next step 616 includes scheduling a time advance with the user equipment if the accumulated time error exceeds the threshold.
摘要翻译： 在通信系统中用于上行链路时间同步的装置和方法包括从用户设备接收上行链路数据的第一步骤602。 下一步骤604包括存储上行链路数据的时间误差以及时间戳。 下一步骤620包括对时间误差进行积分以提供累积的时间误差。 下一步骤606,626包括在积累的数据的时间戳满足定时条件的情况下倾倒累积的时间误差。 下一步骤610包括将累积时间误差与阈值进行比较。 如果累积的时间误差超过阈值，则下一步骤616包括用用户设备调度时间提前。
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5.发明申请METHOD AND APPARATUS FOR TRANSMITTING A SUPERFRAME ACROSS A COMMUNICATION NETWORK 有权用于在通信网络之间传输超级帧的方法和装置公开(公告)号：US20080144567A1
公开(公告)日：2008-06-19
申请号：US11612617
申请日：2006-12-19
IPC分类号： H04Q7/00
CPC分类号： H04W72/005 , H04W4/08
摘要： A method and apparatus includes a scheduling entity (308) for scheduling and transmitting the superframe (402) across a communication network (200). The controller (310) coupled with scheduling entity (308) groups the subscriber unit (304) into one of the plurality of groups. The scheduler entity (308) assigns a coding scheme for each group and encodes each frame of the superframe (402) based upon the assigned coding scheme for the group, to which the frame is to be transmitted. The transceiver (316) coupled with controller (310) via hardware interface (314) receives the encoded superframe and transmits the superframe to the plurality of subscriber units in the communication network (200).
摘要翻译： 一种方法和装置包括：调度实体（308），用于跨越通信网络（200）调度和发送超帧（402）。 与调度实体（308）耦合的控制器（310）将用户单元（304）分组成多个组中的一个组。 调度器实体（308）为每个组分配编码方案，并根据为该帧要发送的组的分配的编码方案对超帧（402）的每个帧进行编码。 经由硬件接口（314）与控制器（310）耦合的收发器（316）接收经编码的超帧，并将该超帧发送到通信网络（200）中的多个用户单元。
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6.发明授权Method and apparatus for providing channel quality feedback in a wireless communication system 有权在无线通信系统中提供信道质量反馈的方法和装置公开(公告)号：US08121552B2
公开(公告)日：2012-02-21
申请号：US11469983
申请日：2006-09-05
IPC分类号： H04B17/00
CPC分类号： H04W24/10 , H04L1/0026 , H04L2001/0093
摘要： A wireless communication system that provides periodic channel quality feedback adjusts a channel condition reporting period for a subscriber station based on the multiple channel condition information reports, such as CQI messages, received from the subscriber station.
摘要翻译： 提供周期性信道质量反馈的无线通信系统基于从用户台接收的多信道条件信息报告（例如CQI消息）来调整用户站的信道状况报告周期。
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7.发明申请公开(公告)号：US20090168708A1
公开(公告)日：2009-07-02
申请号：US12258527
申请日：2008-10-27
IPC分类号： H04W28/00
CPC分类号： H04L1/1887 , H04L1/188
摘要： A technique for operating a wireless communication device includes assigning re-transmission identifiers, such as hybrid automatic repeat request (HARQ) channel identifications, automatic repeat request (ARQ) channel identifications, and ARQ Identifier Sequence Numbers, to at least a first re-transmission identifier group and a second re-transmission identifier group, wherein each re-transmission identifier group is associated with a different quality of service parameter. The technique identifies whether a committed quality of service is met for a connection based on whether a communication on the connection is associated with the first re-transmission identifier group or the second re-transmission identifier group.
摘要翻译： 一种用于操作无线通信设备的技术包括将诸如混合自动重传请求（HARQ）信道标识，自动重传请求（ARQ）信道标识和ARQ标识符序列号等重传标识符分配给至少第一重传 标识符组和第二重传标识符组，其中每个重传标识符组与不同的服务质量参数相关联。 该技术基于连接上的通信是否与第一重传标识符组或第二重传标识符组相关联来识别是否满足连接的承诺服务质量。
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公开(公告)号：US20090147735A1
公开(公告)日：2009-06-11
申请号：US11950435
申请日：2007-12-05
IPC分类号： H04Q7/00
CPC分类号： H04W8/30
摘要： A wireless communications method and device including a transmitter (130) configured to transmit according to an Orthogonal Frequency Division Multiplexing transmission standard (300), such as the WiMAX standard. The wireless communications device (120) includes a transmission bandwidth controller (136) adapted to configure the transmitter (130) to adjust a transmitted bandwidth (312) by at least one of 1) configuring at least one of a first set of punctured subcarriers (324) and a second set of punctured subcarriers (326) to not be used for data transmission. The first set of punctured subcarriers and the second set of punctured subcarriers are located within opposite edges of the transmission bandwidth (340); and 2) configuring at least a first set of guardband subcarriers (322) and a second set of guardband subcarriers (330), which are located on opposite edges of the transmission bandwidth, to be used for data transmission.
摘要翻译： 一种无线通信方法和装置，包括被配置为根据诸如WiMAX标准的正交频分复用传输标准（300）发送的发射机（130）。 无线通信设备（120）包括适于配置发射机（130）以通过以下至少之一来调整发射带宽（312）的传输带宽控制器（136）：1）配置第一组穿孔子载波中的至少一个（ 324）和第二组穿孔子载波（326），不用于数据传输。 第一组穿孔子载波和第二组穿孔子载波位于传输带宽（340）的相对边缘内; 以及2）配置位于所述传输带宽的相对边缘上的至少第一组保护带子载波（322）和第二组保护带子载波（330），用于数据传输。
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公开(公告)号：US08213406B2
公开(公告)日：2012-07-03
申请号：US12758140
申请日：2010-04-12
IPC分类号： H04J3/06
CPC分类号： H04W56/0045
摘要： An apparatus and method for uplink time synchronization in a communication system includes a first step 602 of receiving uplink data from a user equipment. A next step 604 includes storing a time error of the uplink data along with a time stamp. A next step 620 includes integrating the time error to provide an accumulated time error. A next step 606, 626 includes dumping the accumulated time error upon the time stamps of the accumulated data meeting a timing condition. A next step 610 includes comparing the accumulated time error against a threshold. A next step 616 includes scheduling a time advance with the user equipment if the accumulated time error exceeds the threshold.
摘要翻译： 在通信系统中用于上行链路时间同步的装置和方法包括从用户设备接收上行链路数据的第一步骤602。 下一步骤604包括存储上行链路数据的时间误差以及时间戳。 下一步骤620包括对时间误差进行积分以提供累积的时间误差。 下一步骤606,626包括在积累的数据的时间戳满足定时条件的情况下倾倒累积的时间误差。 下一步骤610包括将累积时间误差与阈值进行比较。 如果累积的时间误差超过阈值，则下一步骤616包括用用户设备调度时间提前。
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10.发明授权Latency-aware adaptive bandwidth request mechanism for real-time communication in WiMAX 失效用于WiMAX中实时通信的延迟感知自适应带宽请求机制公开(公告)号：US08194556B2
公开(公告)日：2012-06-05
申请号：US11953206
申请日：2007-12-10
申请人： Pablo Tacconi , Gregory M. Agami
发明人： Pablo Tacconi , Gregory M. Agami
CPC分类号： H04W28/20 , H04L41/0896 , H04L43/0852 , H04L47/70 , H04L47/765 , H04L47/823 , H04L47/824
摘要： A method and apparatus for requesting bandwidth in a subscriber station is disclosed. The method dynamically changes the size of the bandwidth request based on the prediction of the number of packets needed to be transmitted. The average delay experienced by packets in a queue is measured, and this information is then used to change the coefficient of a prediction equation. When the experienced average delay is below the agreed upon QoS latency parameter or delay target, the method reduces the size of the bandwidth requests by making the prediction equation more conservative. On the other hand, when the experienced delay is above the agreed upon latency, the algorithm will make the prediction equation more aggressive, increasing the bandwidth requests and reducing the latency for future packets. By modifying the prediction equation based on the measured delay, the method is able to select the optimal point for achieving time delay requirements while preserving air-link resources.
摘要翻译： 公开了一种在用户站中请求带宽的方法和装置。 该方法基于需要发送的分组数量的预测动态地改变带宽请求的大小。 测量队列中包的平均延迟，然后使用该信息来改变预测方程的系数。 当有经验的平均延迟低于约定的QoS等待时间参数或延迟目标时，该方法通过使预测方程更保守来减小带宽请求的大小。 另一方面，当经验的延迟高于约定的延迟时，算法将使预测方程更加积极，增加带宽请求并减少未来分组的延迟。 通过基于测量的延迟修改预测方程，该方法能够选择最佳点来实现时间延迟要求，同时保留空中链路资源。
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