公开(公告)号：US08442572B2

公开(公告)日：2013-05-14

申请号：US11848865

申请日：2007-08-31

申请人： Mohammad Jaber Borran ,  Aamod Khandekar ,  Alexei Gorokhov ,  Tingfang Ji ,  Naga Bhushan ,  Xin Zhang ,  Arumugam Chendamarai Kannan

发明人： Mohammad Jaber Borran ,  Aamod Khandekar ,  Alexei Gorokhov ,  Tingfang Ji ,  Naga Bhushan ,  Xin Zhang ,  Arumugam Chendamarai Kannan

IPC分类号： H04B7/185 ,  H04B7/00

CPC分类号： H04W24/02 ,  H04W52/16 ,  H04W52/243 ,  H04W52/44

摘要： Systems and methodologies are described that provide techniques for performing adjustments for delta-based power control and interference management in a wireless communication system. A terminal can utilize one or more delta-based power control techniques described herein upon engaging in a reverse link transmission after a predetermined period of silence or after receiving indications of interference from neighboring access points. A delta value can be computed through open-loop projection, based on which transmission resources such as bandwidth and/or transmit power can be increased or decreased to manage interference caused by the terminal. A delta value, other feedback from the terminal, and/or indications of interference caused by the terminal can also be communicated as feedback to a serving access point to allow the access point to assign transmission resources for the terminal.

摘要翻译： 描述了提供用于在无线通信系统中执行基于增量的功率控制和干扰管理的调整的技术的系统和方法。 在预定的静默期之后或在接收到来自相邻接入点的干扰的指示之后，终端可以利用本文所述的一个或多个基于增量的功率控制技术参与反向链路传输。 可以通过开环投影来计算增量值，基于可以增加或减少诸如带宽和/或发射功率的传输资源来管理由终端引起的干扰。 来自终端的增量值，其他反馈和/或由终端引起的干扰的指示也可以作为反馈传送到服务接入点，以允许接入点为终端分配传输资源。

公开(公告)号：US08412222B2

公开(公告)日：2013-04-02

申请号：US12490078

申请日：2009-06-23

申请人： Avneesh Agrawal ,  Alexei Y. Gorokhov ,  Mehmet I. Gurelli ,  Naga Bhushan ,  Parag A. Agashe

发明人： Avneesh Agrawal ,  Alexei Y. Gorokhov ,  Mehmet I. Gurelli ,  Naga Bhushan ,  Parag A. Agashe

IPC分类号： H04B1/00

CPC分类号： H04L1/1692 ,  H04L1/0026 ,  H04L1/1671 ,  H04L1/1861 ,  H04L1/1887 ,  H04L2001/0093

摘要： Techniques for supporting broadcast/multiple transmission to multiple terminals with feedback and rate adaptation are described. In an aspect, a combination of HARQ and at least one shared feedback channel may be used to support broadcast/multicast transmission. In one design, a base station may send at least one transmission of a packet to multiple terminals, one transmission at a time. The base station may receive feedback information (e.g., NAK) for the packet from the terminals on the shared feedback channel(s). The base station may determine whether to terminate the packet early and/or may select at least one transmission parameter for another packet based on the feedback information for the packet. In another aspect, a transport format for a broadcast/multicast transmission may be selected based on CQI information from terminals receiving the transmission. The terminals may send CQI information at a slow rate and/or only certain terminals may send CQI information.

摘要翻译： 描述了用于支持具有反馈和速率适配的多个终端的广播/多传输的技术。 在一方面，可以使用HARQ和至少一个共享反馈信道的组合来支持广播/多播传输。 在一种设计中，基站可以向多个终端发送分组的至少一个传输，一次发送一个。 基站可以从共享反馈信道上的终端接收针对分组的反馈信息（例如，NAK）。 基站可以基于分组的反馈信息来确定是否提前终止分组和/或可以针对另一分组选择至少一个传输参数。 在另一方面，可以基于接收到传输的终端的CQI信息来选择用于广播/多播传输的传输格式。 终端可以以慢速率发送CQI信息和/或仅某些终端可以发送CQI信息。

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：US08305943B2

公开(公告)日：2012-11-06

申请号：US11748878

申请日：2007-05-15

申请人： Aamod Khandekar ,  Naga Bhushan

发明人： Aamod Khandekar ,  Naga Bhushan

IPC分类号： H04L5/14

CPC分类号： H04B7/2656 ,  H04B7/2628

摘要： Systems and methodologies are described that provide half-duplex communication in a frequency division duplex (FDD) system. Communications in an FDD system may be divided into half-duplex interlaces, wherein a terminal may receive at one time period and transmit at another time period. An access network in an FDD system may then utilize half-duplex communication to communicate with an access terminal that is not capable of transmitting and receiving simultaneously by using a half-duplex interlace. Further, an access network may also utilize full-duplex communication to communicate with an access terminal that is capable of transmitting and receiving simultaneously.

摘要翻译： 描述了在频分双工（FDD）系统中提供半双工通信的系统和方法。 FDD系统中的通信可以被划分为半双工交错，其中终端可以在一个时间段接收并在另一时间段进行发送。 然后，FDD系统中的接入网络可以利用半双工通信来与不能通过使用半双工交错同时进行发送和接收的接入终端进行通信。 此外，接入网络还可以利用全双工通信来与能够同时发送和接收的接入终端进行通信。

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：US08218573B2

公开(公告)日：2012-07-10

申请号：US10619781

申请日：2003-07-14

申请人： Naga Bhushan ,  Peter J. Black ,  Rashid Ahmed Attar

发明人： Naga Bhushan ,  Peter J. Black ,  Rashid Ahmed Attar

IPC分类号： H04J3/24

CPC分类号： H04L1/1671 ,  H04L1/0025 ,  H04W28/06 ,  H04W28/18 ,  H04W28/22

摘要： Method and apparatus for power boosting a portion of installments in transmission of a packet of data. The power boosting incorporates a power boost factor for each installment. On receipt of a negative acknowledgement after the power boosted portion of installments, transmission of the subpacket is terminated, and processing passed to a higher layer.

摘要翻译： 用于在数据分组的传输中提升部分分期的功率的方法和装置。 功率提升功能为每个装置提供了功率提升系数。 在功率提升部分的分期付款之后接收到否定的确认，子包的传输被终止，并且处理转移到较高层。

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：US08170068B2

公开(公告)日：2012-05-01

申请号：US12578152

申请日：2009-10-13

申请人： Naga Bhushan ,  Raul Hernan Etkin

发明人： Naga Bhushan ,  Raul Hernan Etkin

IPC分类号： H04J3/12 ,  H04J3/00

CPC分类号： H04W48/08 ,  H04W72/0413

摘要： According to one aspect of the present invention, a method is provided in which indications of signal quality associated with each of the plurality of user stations are received. Multiple user stations (e.g., a first user station and a second user station) are selected to receive data from a base station based on the indications of signal quality associated with the plurality of the user stations. A first packet is constructed which contains signaling data for the first user station and application data for the second user station. A second packet which contains application data for the first user station is super-imposed upon the first packet. The first and second packets are transmitted simultaneously from the base station to the first and second user stations.

摘要翻译： 根据本发明的一个方面，提供了一种方法，其中接收与所述多个用户站中的每一个相关联的信号质量的指示。 基于与多个用户站相关联的信号质量的指示，选择多个用户站（例如，第一用户站和第二用户站）以从基站接收数据。 构成第一分组，其包含用于第一用户站的信令数据和第二用户站的应用数据。 包含第一用户站的应用数据的第二分组被超级强加在第一分组上。 第一和第二分组从基站同时发送到第一和第二用户站。

公开(公告)号：US20120021688A1

公开(公告)日：2012-01-26

申请号：US13009174

申请日：2011-01-19

申请人： Kapil Bhattad ,  Peter Gaal ,  Alexei Yurievitch Gorokhov ,  Juan Montojo ,  Naga Bhushan

发明人： Kapil Bhattad ,  Peter Gaal ,  Alexei Yurievitch Gorokhov ,  Juan Montojo ,  Naga Bhushan

IPC分类号： H04B15/00 ,  H04B1/00

CPC分类号： H04B7/0452 ,  H04B7/0689 ,  H04B7/0871

摘要： Certain aspects of the present disclosure propose methods and apparatuses for detecting whether a user device is scheduled for a single user (SU) multiple-input multiple-output (MIMO) communication mode or for a multi-user (MU) MIMO communication mode. In an aspect, a method for wireless communications is provided which includes measuring, at a first apparatus based on received pilot signals, a first receive power corresponding to a first channel associated with the first apparatus, measuring, based on the received pilot signals, a second receive power corresponding to a second channel associated with at least one potentially present second apparatus, measuring a residual interference based on the received pilot signals, and determining, based on at least one of the first receive power, the second receive power and the residual interference, whether to apply a MU detection or a SU detection for estimating data received at the first apparatus.

摘要翻译： 本公开的某些方面提出了用于检测是否为单用户（SU）多输入多输出（MIMO）通信模式或多用户（MU）MIMO通信模式）调度用户设备的方法和装置。 一方面，提供了一种用于无线通信的方法，其包括在第一装置基于接收到的导频信号测量与第一装置相关联的第一信道对应的第一接收功率，基于接收到的导频信号， 对应于与至少一个潜在存在的第二装置相关联的第二信道的第二接收功率，基于接收到的导频信号测量残余干扰，以及基于所述第一接收功率，所述第二接收功率和所述残差中的至少一个来确定 干扰，是否应用MU检测或SU检测来估计在第一装置处接收到的数据。

公开(公告)号：US08094623B2

公开(公告)日：2012-01-10

申请号：US11686772

申请日：2007-03-15

申请人： Rashid Ahmed Akbar Attar ,  Rajiv Vijayan ,  Roberto Padovani ,  Naga Bhushan ,  Qiang Wu ,  Peter John Black ,  Eduardo A. S. Esteves

发明人： Rashid Ahmed Akbar Attar ,  Rajiv Vijayan ,  Roberto Padovani ,  Naga Bhushan ,  Qiang Wu ,  Peter John Black ,  Eduardo A. S. Esteves

IPC分类号： H04W36/08

CPC分类号： H04W48/20 ,  H04L1/20 ,  H04W52/24 ,  H04W52/26

摘要： Methods and apparatus for selecting a serving sector in a high rate data (HDR) communication system are disclosed. An exemplary HDR communication system defines a set of data rates, at which a sector of an Access Point may send data packets to an Access Terminal. The sector is selected by the Access Terminal to achieve the highest data throughput while maintaining a targeted packet error rate. The Access Terminal employs various methods to evaluate quality metrics of forward and reverse links from and to different sectors, and uses the quality metrics to select the sector to send data packets to the Access Terminal.

摘要翻译： 公开了在高速率数据（HDR）通信系统中选择服务扇区的方法和装置。 示例性HDR通信系统定义了一组数据速率，在该组数据速率下，接入点的扇区可以向接入终端发送数据分组。 访问终端选择该扇区以实现最高的数据吞吐量，同时保持目标分组错误率。 接入终端采用各种方法来评估来自不同扇区的前向和反向链路的质量度量，并使用质量度量来选择扇区将数据分组发送到接入终端。