公开(公告)号：US20070127407A1

公开(公告)日：2007-06-07

申请号：US11670837

申请日：2007-02-02

申请人： Rashid Attar ,  Naga Bhushan ,  Mingxi Fan

发明人： Rashid Attar ,  Naga Bhushan ,  Mingxi Fan

IPC分类号： H04B7/185

CPC分类号： H04W52/34 ,  H04L1/1692 ,  H04W52/24 ,  H04W52/325 ,  H04W52/40

摘要： An apparatus and a method for a control channel power allocation in a communication system are disclosed. The method of control channel power allocation in an embodiment includes sorting a plurality of access terminals in an order of increasing required medium access control (MAC) channel power into a plurality of bins, sorting the access terminals with equal required MAC channel power in an order of decreasing forward link signal to interference and noise ratio (FL_SINR) if two or more access terminals have equal required MAC channel power, and determining total available ARQ power based upon total MAC channel power, total power allocated to reverse power control (RPC) channels, and total power allocated to reverse activity bit (RAB) channels.

摘要翻译： 公开了一种用于通信系统中的控制信道功率分配的装置和方法。 一个实施例中的控制信道功率分配的方法包括按照将所需的媒体接入控制（MAC）信道功率增加到多个小区中的顺序对多个接入终端进行排序，按照相同的所需MAC信道功率对接入终端进行排序 如果两个或多个接入终端具有相等的所需MAC信道功率，则基于总MAC信道功率，分配给反向功率控制（RPC）信道的总功率确定总可用ARQ功率，从而将前向链路信号降低到干扰和噪声比（FL_SINR） ，以及分配给反向活动位（RAB）通道的总功率。

公开(公告)号：US08396152B2

公开(公告)日：2013-03-12

申请号：US11676981

申请日：2007-02-20

申请人： Rashid Ahmed Akbar Attar ,  Naga Bhushan ,  Mingxi Fan ,  Yongbin Wei

发明人： Rashid Ahmed Akbar Attar ,  Naga Bhushan ,  Mingxi Fan ,  Yongbin Wei

IPC分类号： H04B7/02

CPC分类号： H04L5/1438 ,  H04B7/0452 ,  H04B7/0626 ,  H04B7/063 ,  H04B7/0639 ,  H04J13/0044 ,  H04L1/0002 ,  H04L1/0025 ,  H04L1/0028 ,  H04L1/06 ,  H04L1/1671 ,  H04L1/1812 ,  H04L5/0026 ,  H04L5/0048 ,  H04L5/023 ,  H04L25/0204 ,  H04L25/0206 ,  H04L25/0226 ,  H04L27/2613 ,  H04W28/06 ,  H04W28/18 ,  H04W48/08 ,  Y02D70/1222 ,  Y02D70/1224 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/144 ,  Y02D70/23 ,  Y02D70/24 ,  Y02D70/444

摘要： A data-optimized communication system provides support for legacy access terminals, such as access terminals operating under the 1xEV-DO standard. The system also supports multiple-input multiple-output (MIMO) communications with access terminals configured to support MIMO. A number of MIMO spatial signatures are predefined or negotiated. MIMO rank and an identifier of the spatial signature determined at the MIMO access terminal are sent on the I-Branch and Q-Branch of the existing 1xEV-DO structure. In one embodiment, 1-bit rank and 3-bit spatial signature are transmitted through the I-Branch as a 4-bit symbol, replacing the data rate control (DRC) channel. In another embodiment, a 4-bit spatial signature is transmitted through the I-Branch, also replacing the DRC channel. A 2-bit rank is transmitted together with a 4-bit DRC channel through the Q-Branch. The 2-bit rank and the DRC channel can be distinguished because they are sent using different orthogonal codeword Walsh covers.

摘要翻译： 数据优化的通信系统为传统接入终端提供支持，例如在1xEV-DO标准下运行的接入终端。 该系统还支持配置为支持MIMO的接入终端的多输入多输出（MIMO）通信。 许多MIMO空间签名是预定义或协商的。 在现有1xEV-DO结构的I-Branch和Q-Branch上发送MIMO秩和在MIMO接入终端确定的空间签名的标识符。 在一个实施例中，1比特等级和3比特空间签名作为4比特符号通过I-Branch传送，代替数据速率控制（DRC）信道。 在另一个实施例中，通过I-Branch传送4位空间签名，也代替DRC信道。 2位等级通过Q-Branch与4位DRC通道一起发送。 可以区分2位等级和DRC信道，因为它们使用不同的正交码字Walsh覆盖发送。

公开(公告)号：US07525909B2

公开(公告)日：2009-04-28

申请号：US10600231

申请日：2003-06-19

申请人： Mingxi Fan ,  Eduardo A. S. Esteves ,  Rashid Ahmed Attar ,  Naga Bhushan ,  Peter J. Black

发明人： Mingxi Fan ,  Eduardo A. S. Esteves ,  Rashid Ahmed Attar ,  Naga Bhushan ,  Peter J. Black

IPC分类号： H04J3/14 ,  G01R31/08 ,  H04B7/216

CPC分类号： H04W16/14 ,  H04W28/22

摘要： A method and an apparatus of dynamically setting a rise-over-thermal (ROT) threshold to control user-to-user interferences in a wireless communication system are disclosed. The ROT threshold is set by determining whether an outage of communication has occurred, increasing the ROT threshold by a predetermined increment if the outage has not occurred, and decreasing the ROT threshold by a predetermined decrement if the outage has occurred.

摘要翻译： 公开了一种在无线通信系统中动态设置上变热（ROT）阈值以控制用户与用户干扰的方法和装置。 通过确定是否发生通信中断来设置ROT阈值，如果没有发生中断，则将ROT阈值增加预定增量，并且如果发生中断，则将ROT阈值减小预定的减少量。

公开(公告)号：US20070195688A1

公开(公告)日：2007-08-23

申请号：US11677000

申请日：2007-02-20

申请人： Naga Bhushan ,  Tamer Kadous ,  Mingxi Fan ,  Yongbin Wei

发明人： Naga Bhushan ,  Tamer Kadous ,  Mingxi Fan ,  Yongbin Wei

IPC分类号： H04J11/00

CPC分类号： H04L5/1438 ,  H04B7/0452 ,  H04B7/0626 ,  H04B7/063 ,  H04B7/0639 ,  H04J13/0044 ,  H04L1/0002 ,  H04L1/0025 ,  H04L1/0028 ,  H04L1/06 ,  H04L1/1671 ,  H04L1/1812 ,  H04L5/0026 ,  H04L5/0048 ,  H04L5/023 ,  H04L25/0204 ,  H04L25/0206 ,  H04L25/0226 ,  H04L27/2613 ,  H04W28/06 ,  H04W28/18 ,  H04W48/08 ,  Y02D70/1222 ,  Y02D70/1224 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/144 ,  Y02D70/23 ,  Y02D70/24 ,  Y02D70/444

摘要： Spatial pilot to support MIMO receivers in a multi-antenna and multi-layer transmission communication system. A first layer pilot for a single layer transmission is repeated across subbands in a first OFDM symbol and the first layer pilot is also repeated offset from the first OFDM symbol in an adjacent second OFDM symbol. Additional transmission layers may also be transmitted each include a separate pilot generated and repeated in the first symbol and repeated offset form the separate pilot in an adjacent second symbol. The first and second OFDM symbols are then transmitted and received to characterize the receive channels.

摘要翻译： 在多天线和多层传输通信系统中支持MIMO接收机的空间导频。 在第一OFDM符号中的子带上重复用于单层传输的第一层导频，并且第一层导频也在邻近的第二OFDM符号中与第一OFDM符号重复偏移。 还可以传输附加的传输层，每个传输层包括在第一符号中生成和重复的单独的导频，并且在相邻的第二符号中从单独的导频重复偏移。 然后发送和接收第一和第二OFDM符号以表征接收信道。

公开(公告)号：US07069037B2

公开(公告)日：2006-06-27

申请号：US10423578

申请日：2003-04-25

申请人： Christopher Gerard Lott ,  Jean Au ,  Rashid Ahmed Akbar Attar ,  Peter J. Black ,  Mingxi Fan ,  Naga Bhushan

发明人： Christopher Gerard Lott ,  Jean Au ,  Rashid Ahmed Akbar Attar ,  Peter J. Black ,  Mingxi Fan ,  Naga Bhushan

IPC分类号： H04B7/00 ,  H04Q7/20

CPC分类号： H04W52/267 ,  H04L1/0002 ,  H04L1/0026 ,  H04L1/0028 ,  H04W52/16 ,  H04W52/34 ,  H04W52/36

摘要： A method and apparatus for determining the data rate of a reverse link communication of an access terminal includes receiving a reverse activity bit (RAB) from an access network in the communication system, and passing the RAB to multiple digital filters to produce filtered RABs. The reverse link data rate is determined based on these filtered values of the RABs. From the filtered RAB values a continuous fluid power level is determined each rate update. The access terminal maps the continuous fluid power level to actual physical transmissions by dithering among discrete power levels allowed by the physical layer.

摘要翻译： 用于确定接入终端的反向链路通信的数据速率的方法和装置包括从通信系统中的接入网络接收反向活动比特（RAB），并将RAB传递给多个数字滤波器以产生经过滤波的RAB。 基于RAB的这些过滤值来确定反向链路数据速率。 从经过滤的RAB值，确定每个速率更新的连续流体功率水平。 接入终端通过物理层允许的离散功率电平之间的抖动将连续流体功率电平映射到实际的物理传输。

公开(公告)号：US10517098B2

公开(公告)日：2019-12-24

申请号：US13188146

申请日：2011-07-21

申请人： Stefan Geirhofer ,  Naga Bhushan ,  Ravi Palanki ,  Jaber Mohammad Borran ,  Aleksandar Damnjanovic

发明人： Stefan Geirhofer ,  Naga Bhushan ,  Ravi Palanki ,  Jaber Mohammad Borran ,  Aleksandar Damnjanovic

IPC分类号： H04W16/02 ,  H04W72/08 ,  H04W52/24

摘要： Techniques for supporting peer-to-peer (P2P) communication in a wide area network (WAN) are disclosed. In an aspect, interference coordination between P2P devices engaged in P2P communication and WAN devices engaged in WAN communication may be performed based on a network-controlled architecture. For the network-controlled architecture, P2P devices may detect other P2P devices and/or WAN devices and may send measurements (e.g., for pathloss, interference, etc.) for the detected devices to the WAN (e.g., serving base stations). The WAN may perform resource partitioning and/or association for the P2P devices based on the measurements. Association may include selection of P2P communication or WAN communication for a given P2P device. Resource partitioning may include allocation of resources to a group of P2P devices for P2P communication. The WAN may send the results of association and/or resource partitioning to the P2P devices, which may communicate in accordance with the association and/or resource partitioning results.

公开(公告)号：US10250678B2

公开(公告)日：2019-04-02

申请号：US13046157

申请日：2011-03-11

申请人： Siddhartha Mallik ,  Ravi Palanki ,  Durga Prasad Malladi ,  Naga Bhushan

发明人： Siddhartha Mallik ,  Ravi Palanki ,  Durga Prasad Malladi ,  Naga Bhushan

IPC分类号： G06F15/173 ,  H04L29/08 ,  H04W8/00

摘要： Techniques for performing peer discovery in a wireless network are described. A device may perform peer discovery to detect and identify other devices of interest. In an aspect, the device may perform peer discovery based on a hybrid mode that includes autonomous peer discovery and network-assisted peer discovery. In another aspect, the device may perform peer discovery based on a push mode and a pull mode. For the push mode, the device may occasionally transmit and/or receive a peer detection signal. For the pull mode, the device may transmit and/or receive a peer discovery request when triggered. In yet another aspect, the device may perform event-triggered peer discovery (e.g., for the pull mode). In yet another aspect, the device may perform peer discovery using both a downlink spectrum and an uplink spectrum. In yet another aspect, the device may transmit a peer detection signal in a manner to improve detection and/or increase payload.

公开(公告)号：US09585108B2

公开(公告)日：2017-02-28

申请号：US12772902

申请日：2010-05-03

申请人： Jelena M. Damnjanovic ,  Juan Montojo ,  Naga Bhushan

发明人： Jelena M. Damnjanovic ,  Juan Montojo ,  Naga Bhushan

IPC分类号： H04B1/00 ,  H04W52/42 ,  H04W52/14 ,  H04W52/28 ,  H04W52/34

CPC分类号： H04W52/146 ,  H04W52/242 ,  H04W52/265 ,  H04W52/281 ,  H04W52/325 ,  H04W52/343 ,  H04W52/346 ,  H04W52/42 ,  H04W84/042

摘要： The described apparatus and methods may include a controller configured to determine power required for at least one of a plurality of carriers, and generate at least one of a plurality of power control commands for at least one of the plurality of carriers based on the determination.

摘要翻译： 所描述的装置和方法可以包括控制器，其被配置为基于该确定来确定多个载波中的至少一个载波所需的功率，并且生成用于多个载波中的至少一个的多个功率控制命令中的至少一个。

公开(公告)号：US09516686B2

公开(公告)日：2016-12-06

申请号：US13046176

申请日：2011-03-11

申请人： Alan Barbieri ,  Naga Bhushan ,  Ravi Palanki ,  Peter Gaal

发明人： Alan Barbieri ,  Naga Bhushan ,  Ravi Palanki ,  Peter Gaal

IPC分类号： H04W72/04 ,  H04W24/00 ,  H04W36/30 ,  H04W76/02

CPC分类号： H04W76/023 ,  H04W36/06 ,  H04W36/36 ,  H04W76/14

摘要： Techniques for establishing and maintaining peer-to-peer (P2P) communication are described. In an aspect, P2P communication on an unlicensed spectrum may be established and maintained with network assistance. In one design, a user equipment (UE) may communicate with a wide area network (WAN) to establish P2P communication with at least one other UE on a first frequency band that is not licensed to the WAN. For example, the UE may receive an assignment of at least one frequency channel in the first frequency band for P2P communication. The UE may then communicate peer-to-peer with the other UE(s) on the at least one frequency channel. The UE may also communicate with the WAN to maintain P2P communication with the other UE(s), e.g., to switch to another frequency channel if necessary.

摘要翻译： 描述了用于建立和维护对等（P2P）通信的技术。 在一方面，可以通过网络协助建立和维护非许可频谱上的P2P通信。 在一种设计中，用户设备（UE）可以与广域网（WAN）进行通信，以便在未向WAN许可的第一频带上与至少一个其他UE建立P2P通信。 例如，UE可以接收用于P2P通信的第一频带中的至少一个频率信道的分配。 然后，UE可以在至少一个频率信道上与其他UE进行点对点通信。 UE还可以与WAN通信以保持与其他UE的P2P通信，例如，如果需要，切换到另一个频率信道。

公开(公告)号：US09485069B2

公开(公告)日：2016-11-01

申请号：US13085337

申请日：2011-04-12

申请人： Renqiu Wang ,  Siddhartha Mallik ,  Ravi Palanki ,  Naga Bhushan ,  Tao Luo ,  Durga Prasad Malladi

发明人： Renqiu Wang ,  Siddhartha Mallik ,  Ravi Palanki ,  Naga Bhushan ,  Tao Luo ,  Durga Prasad Malladi

IPC分类号： H04B7/208 ,  H04L5/00 ,  H04W8/00 ,  H04W56/00 ,  H04W72/00 ,  H04W76/02 ,  H04W92/18

CPC分类号： H04W8/005 ,  H04L5/0053 ,  H04L67/104 ,  H04W4/02 ,  H04W56/002 ,  H04W56/0025 ,  H04W72/00 ,  H04W72/0453 ,  H04W76/10 ,  H04W92/18

摘要： Techniques for performing peer discovery to enable peer-to-peer (P2P) communication are disclosed. In an aspect, a proximity detection signal used for peer discovery may be generated based on one or more physical channels and/or signals used in a wireless network. In one design, a user equipment (UE) may generate a proximity detection signal occupying at least one resource block based on a SC-FDMA modulation technique. In another design, the UE may generate a proximity detection signal occupying at least one resource block based on an OFDMA modulation technique. The UE may generate SC-FDMA symbols or OFDMA symbols in different manners for different physical channels. In yet another design, the UE may generate a proximity detection signal including a primary synchronization signal and a secondary synchronization signal. For all designs, the UE may transmit the proximity detection signal to indicate its presence and to enable other UEs to detect the UE.

摘要翻译： 公开了用于执行对等体发现以实现对等（P2P）通信的技术。 在一方面，可以基于在无线网络中使用的一个或多个物理信道和/或信号来生成用于对等体发现的接近检测信号。 在一种设计中，用户设备（UE）可以基于SC-FDMA调制技术生成占用至少一个资源块的接近检测信号。 在另一种设计中，UE可以基于OFDMA调制技术生成占用至少一个资源块的接近检测信号。 UE可以针对不同的物理信道以不同的方式生成SC-FDMA符号或OFDMA符号。 在又一设计中，UE可以产生包括主同步信号和次同步信号的接近检测信号。 对于所有设计，UE可以发送接近检测信号以指示其存在并使其他UE能够检测UE。