公开(公告)号：US08797911B2

公开(公告)日：2014-08-05

申请号：US13401143

申请日：2012-02-21

申请人： Linhai He ,  Rashid A. Attar ,  Christopher G. Lott ,  Donna Ghosh ,  Chaitanya Mannemala ,  Sunit Bhatia ,  Sudheer Konda ,  Gopal Chillariga

发明人： Linhai He ,  Rashid A. Attar ,  Christopher G. Lott ,  Donna Ghosh ,  Chaitanya Mannemala ,  Sunit Bhatia ,  Sudheer Konda ,  Gopal Chillariga

IPC分类号： H04W52/02 ,  H04W24/00

CPC分类号： H04W52/0241 ,  H04W52/0232 ,  H04W52/0258 ,  H04W88/08 ,  Y02D70/1224 ,  Y02D70/1242 ,  Y02D70/142

摘要： A wireless communications power saving method and apparatus is provided. The method includes establishing a circular buffer configured to maintain a number of most recently encountered frame delay times and waiting a frame delay time after receiving a further frame before the station enters a power save state. Frame delay time is a period equal to a largest most recently encountered frame delay period in the circular buffer. The method further determines, at a station, a dormancy time based on a number of data frames received since the station transitioned from an inactive mode to an active mode, a packet transmission rate, and a data frame time interval representing time between data frames received at the station, and causes the station to switch to a further inactive mode if a next packet is not received within the dormancy time after receipt of a previous packet.

摘要翻译： 提供一种无线通信省电方法和装置。 该方法包括建立循环缓冲器，该循环缓冲器被配置为保持最近遇到的帧延迟时间的数量，并且在站进入省电状态之前在接收到另一帧之后等待帧延迟时间。 帧延迟时间是等于循环缓冲器中最大遇到的最大帧延迟周期的周期。 该方法还在一个站点基于从站从非活动模式转换到活动模式，分组传输速率和表示接收到的数据帧之间的时间的数据帧时间间隔，接收到的数据帧数，在一个站处确定休眠时间 并且如果在接收到先前分组之后的休眠时间内没有接收到下一分组，则使得站切换到另一非活动模式。

公开(公告)号：US08645501B2

公开(公告)日：2014-02-04

申请号：US13101520

申请日：2011-05-05

申请人： Donna Ghosh ,  Mark Bapst ,  Christopher G. Lott ,  Rashid A. Attar ,  George Cherian ,  Linhai He ,  Dinesh K. Garg

发明人： Donna Ghosh ,  Mark Bapst ,  Christopher G. Lott ,  Rashid A. Attar ,  George Cherian ,  Linhai He ,  Dinesh K. Garg

IPC分类号： G06F15/16

CPC分类号： H04L61/6009 ,  G06F17/30902 ,  H04L61/1511

摘要： Methods and apparatus for obtaining web content are disclosed. The method includes identifying resources identified by domain name references that a user may request, obtaining a status of at least one operating condition that affects operations of the communication device, fetching, in advance of the user requesting the content, network addresses of the resources so as to resolve the domain name references, and adapting a level of the fetching based upon the at least one operating condition. The network addresses of the resources are cached so as to generate cached network addresses, and if the user requests the content, the cached network addresses are utilized to access the resources associated with the content.

摘要翻译： 公开了获取网页内容的方法和装置。 该方法包括识别由用户可能请求的域名引用识别的资源，获得影响通信设备的操作的至少一个操作条件的状态，在请求内容的用户之前提取资源的网络地址，从而 以解决域名引用，以及基于所述至少一个操作条件来适配所述提取的级别。 资源的网络地址被缓存以生成缓存的网络地址，并且如果用户请求内容，则使用缓存的网络地址来访问与内容相关联的资源。

公开(公告)号：US08498308B2

公开(公告)日：2013-07-30

申请号：US11592568

申请日：2006-11-03

申请人： Eduardo A. S. Esteves ,  Rashid A. Attar ,  Nagabhushana T. Sindhushayana

发明人： Eduardo A. S. Esteves ,  Rashid A. Attar ,  Nagabhushana T. Sindhushayana

IPC分类号： H04W28/04

CPC分类号： H04W16/02 ,  H04W28/04 ,  H04W28/18

摘要： In a high data rate communication system capable of variable rate transmission, an open loop rate control can be adjusted with a closed loop rate control to maximize throughput. An access point generates interleaved multi-slot packets that allow an access terminal to transmit indicator messages to the access point in accordance with recently received data carried within slots of the multi-slot packets.

摘要翻译： 在能够进行可变速率传输的高数据速率通信系统中，可以通过闭环速率控制来调整开环速率控制以最大化吞吐量。 接入点产生交错多时隙分组，其允许接入终端根据在多时隙分组的时隙内承载的最近接收的数据向接入点发送指示符消息。

公开(公告)号：US08331377B2

公开(公告)日：2012-12-11

申请号：US11364384

申请日：2006-02-27

申请人： Rashid A. Attar ,  Peter J. Black ,  Mehmet Gurelli ,  Mehmet Yavuz ,  Naga Bhushan

发明人： Rashid A. Attar ,  Peter J. Black ,  Mehmet Gurelli ,  Mehmet Yavuz ,  Naga Bhushan

IPC分类号： H04L12/28 ,  H04L12/56

CPC分类号： H04L1/0017 ,  H04L1/0002 ,  H04L1/0021 ,  H04L1/20 ,  H04L47/50 ,  H04W28/18 ,  H04W72/1236 ,  H04W72/1242

摘要： Embodiments disclosed here relate to scheduling packet transmission in a multi-carrier communication system. In an embodiment, a master scheduler having at least one processor and at least one memory operably connected to the at least one processor is adapted to execute instructions stored in the at least one memory, the instructions comprising selecting a packet with a highest packet metric from among candidate packets from one carrier of a plurality of carriers, whereby expedited forwarding flows do not have a higher metric on another carrier.

摘要翻译： 这里公开的实施例涉及在多载波通信系统中调度分组传输。 在一个实施例中，具有至少一个处理器的主调度器和可操作地连接到至少一个处理器的至少一个存储器适于执行存储在至少一个存储器中的指令，所述指令包括选择具有最高分组度量的分组 在来自多个载波的一个载波的候选分组中，加速转发流在另一个载波上不具有较高的度量。

公开(公告)号：US20120284372A1

公开(公告)日：2012-11-08

申请号：US13101520

申请日：2011-05-05

申请人： Donna Ghosh ,  Mark Bapst ,  Christopher G. Lott ,  Rashid A. Attar ,  George Cherian ,  Linhai He ,  Dinesh K. Garg

发明人： Donna Ghosh ,  Mark Bapst ,  Christopher G. Lott ,  Rashid A. Attar ,  George Cherian ,  Linhai He ,  Dinesh K. Garg

IPC分类号： G06F15/16

CPC分类号： H04L61/6009 ,  G06F17/30902 ,  H04L61/1511

摘要： Methods and apparatus for obtaining web content are disclosed. The method includes identifying resources identified by domain name references that a user may request, obtaining a status of at least one operating condition that affects operations of the communication device, fetching, in advance of the user requesting the content, network addresses of the resources so as to resolve the domain name references, and adapting a level of the fetching based upon the at least one operating condition. The network addresses of the resources are cached so as to generate cached network addresses, and if the user requests the content, the cached network addresses are utilized to access the resources associated with the content.

摘要翻译： 公开了获取网页内容的方法和装置。 该方法包括识别由用户可能请求的域名引用识别的资源，获得影响通信设备的操作的至少一个操作条件的状态，在请求内容的用户之前提取资源的网络地址，从而 以解决域名引用，以及基于所述至少一个操作条件来适配所述提取的级别。 资源的网络地址被缓存以生成缓存的网络地址，并且如果用户请求内容，则使用缓存的网络地址来访问与内容相关联的资源。

公开(公告)号：US08248938B2

公开(公告)日：2012-08-21

申请号：US10997271

申请日：2004-11-24

申请人： Jean P. L. Au ,  Rashid A. Attar ,  Naga Bhushan

发明人： Jean P. L. Au ,  Rashid A. Attar ,  Naga Bhushan

IPC分类号： G08C1/00

CPC分类号： H04L1/1819

摘要： A communication system (100) transmits data packets from a sender (120A) to a receiver (130A) using hybrid automatic repeat request processes. The sender redundantly encodes each packet, divides the packet into subpackets, and sends the subpackets to the receiver in a time-interlaced manner. When the receiver returns a positive acknowledgement of a subpacket using an acknowledgement channel, the sender terminates transmission of the subpackets. The sender interprets the signals on the acknowledgement channel using a metric resulting from correlation of the signals with positive and negative acknowledgement symbols. The sender interprets low correlation of the acknowledgement channel signal with both positive and negative acknowledgement symbols as a preamble miss, and terminates transmission of the subpackets. After termination, the packet may be rescheduled for transmission. Early termination of packet transmission after a preamble miss improves bandwidth utilization and decreases latency of the packet with the missed preamble.

摘要翻译： 通信系统（100）使用混合自动重复请求处理将数据分组从发送方（120A）发送到接收方（130A）。 发送方对每个数据包进行冗余编码，将数据包划分为子数据包，并以时间间隔方式将子数据包发送给接收方。 当接收方使用确认信道返回子包的肯定确认时，发送方终止子数据包的传输。 发送者使用由信号与正和负确认符号的相关产生的度量来确认确认信道上的信号。 发送方解释确认信道信号与正和负确认符号的低相关性作为前导码缺失，并终止子分组的传输。 终止之后，可以重新安排分组以进行传输。 前导码丢失后的数据包传输的提前终止提高了带宽利用率并降低了丢失前导码的数据包的等待时间。

公开(公告)号：US08179833B2

公开(公告)日：2012-05-15

申请号：US10984094

申请日：2004-11-09

申请人： Rashid A. Attar ,  Naga Bhushan

发明人： Rashid A. Attar ,  Naga Bhushan

IPC分类号： H04B7/204 ,  H04W4/00

CPC分类号： H04W28/18 ,  H04W52/06 ,  H04W52/12 ,  H04W52/146 ,  H04W52/16 ,  H04W74/002 ,  H04W88/06

摘要： A communication system includes a plurality of access terminals, and an access network. The access network schedules a transmission of data in a time interval from one of the access terminals. The access network selects a multiple access transmission mode from a plurality of multiple access transmission modes, and broadcasts the selected multiple access transmission mode to the access terminals. The selected mode may include a mode in which data is code-division-multiplexed during the time interval, and modes in which data is code-division-multiplexed during a first portion of the time interval, and data is either time-division-multiplexed or orthogonal-frequency-division-multiplexed during a second portion of the time interval.

摘要翻译： 通信系统包括多个接入终端和接入网。 接入网在一个接入终端的时间间隔内调度数据的传输。 接入网络从多个多址传输模式中选择多址传输模式，并将所选择的多址传输模式广播到接入终端。 所选择的模式可以包括在时间间隔期间对数据进行码分复用的模式，以及在时间间隔的第一部分期间数据进行码分复用的模式，并且数据被时分复用 或在时间间隔的第二部分期间正交频分复用。

公开(公告)号：US08060129B2

公开(公告)日：2011-11-15

申请号：US12423709

申请日：2009-04-14

申请人： Matthew S. Grob ,  Rashid A. Attar ,  Henry D. Pfister ,  Klein S. Gilhousen ,  Ramin Rezaiifar

发明人： Matthew S. Grob ,  Rashid A. Attar ,  Henry D. Pfister ,  Klein S. Gilhousen ,  Ramin Rezaiifar

IPC分类号： H04B7/00 ,  H04Q7/444

CPC分类号： H04W52/146 ,  H04W4/10 ,  H04W52/06 ,  H04W52/08 ,  H04W52/10 ,  H04W52/383 ,  H04W72/005 ,  H04W76/14 ,  H04W76/45 ,  H04W92/18

摘要： In a multiple-access network, network access terminals conduct peer-to-peer communications on reverse link channels of the network.

摘要翻译： 在多址网络中，网络接入终端在网络的反向链路信道上进行对等通信。

公开(公告)号：US20110085520A1

公开(公告)日：2011-04-14

申请号：US12614436

申请日：2009-11-08

申请人： Yu-Cheun Jou ,  Rashid A. Attar ,  Peter J. Black

发明人： Yu-Cheun Jou ,  Rashid A. Attar ,  Peter J. Black

IPC分类号： H04B7/216 ,  H04B15/00

CPC分类号： H04B1/7107 ,  H04B1/10

摘要： Disclosed are methods and apparatus for interference cancellation in a wireless communication system. In particular, the disclosed methods and apparatus provide for interference cancellation in a wireless device, including extending linear interference cancellation techniques, such as quasi-linear interference cancellation (QLIC), in the wireless device to a first orthogonal set, which may be a first quasi orthogonal function (QOF) set for a cdma2000 system to cancel interference from that set upon another desired QOF set. QLIC may also be extended to cancellation of signals from non-intended base stations as well. Accordingly, the present methods and apparatus afford reduced interference through QLIC by canceling signals due to either undesired QOF sets or non-intended base stations, which in turn results in an increase in forward link capacity.

摘要翻译： 公开了一种用于无线通信系统中的干扰消除的方法和装置。 具体地，所公开的方法和装置提供无线设备中的干扰消除，包括将无线设备中的线性干扰消除技术（诸如准线性干扰消除（QLIC））扩展到第一正交集合，其可以是第一正交集合 为cdma2000系统设置的准正交函数（QOF），以消除来自该组的另一个所需QOF集的干扰。 也可以将QLIC扩展到从非预定基站消除信号。 因此，本方法和装置通过消除由于不期望的QOF组或非预期基站导致的信号，通过QLIC降低了干扰，这又导致前向链路容量的增加。

公开(公告)号：US20100061496A1

公开(公告)日：2010-03-11

申请号：US12564633

申请日：2009-09-22

申请人： Peter J. Black ,  Christopher G. Lott ,  Rashid A. Attar ,  Yu-Cheun Jou ,  Jun Ma

发明人： Peter J. Black ,  Christopher G. Lott ,  Rashid A. Attar ,  Yu-Cheun Jou ,  Jun Ma

IPC分类号： H04B1/10

CPC分类号： H04L25/0224 ,  H04B1/7107 ,  H04B2201/70701 ,  H04L25/0204 ,  H04L25/0228 ,  H04W52/36 ,  H04W52/48

摘要： Techniques for improving the capacity of a wireless communications system using interference cancellation (IC). In an early decoding and IC aspect, a frame transmitted from a user to a base station may be decoded prior to the entire frame being received by the base station. The remaining portion of the frame may then be re-constructed at the base station prior to its reception, and cancelled from the receive signal to reduce the interference to frames received from other users. In a power control aspect for early decoding and IC, the power control target level at a local base station may be adjusted in response to successfully early decoding a frame, without affecting the overall outer loop power control operation. Further aspects include late decoding techniques for utilizing the IC of other users' signals to improve the probability of decoding a given user's frames, as well as techniques for traffic channel demodulation using channel re-estimation.

摘要翻译： 使用干扰消除（IC）来提高无线通信系统容量的技术。 在早期的解码和IC方面，可以在从基站接收的整个帧之前对从用户发送到基站的帧进行解码。 帧的剩余部分然后可以在其接收之前在基站重新构建，并且从接收信号中取消，以减少对从其他用户接收到的帧的干扰。 在用于早期解码和IC的功率控制方面，本地基站的功率控制目标电平可以响应成功地早期解码帧来调整，而不影响整个外环功率控制操作。 其他方面包括用于利用其他用户信号的IC来提高对给定用户的帧进行解码的概率的后期解码技术，以及使用信道重新估计的业务信道解调技术。