公开(公告)号：US20110059699A1

公开(公告)日：2011-03-10

申请号：US12840570

申请日：2010-07-21

申请人： Ayman Fawzy Naguib ,  Alexei Gorokhov ,  Tingfang Ji ,  Dhananjay A. Gore ,  Arak Sutivong

发明人： Ayman Fawzy Naguib ,  Alexei Gorokhov ,  Tingfang Ji ,  Dhananjay A. Gore ,  Arak Sutivong

IPC分类号： H04B7/005

CPC分类号： H04L1/0019 ,  H04L1/0003 ,  H04L1/0016 ,  H04L1/06 ,  H04L25/0212 ,  H04L25/0228 ,  H04L25/0242 ,  H04L25/0256

摘要： A selected rate is received for an apparatus based on a hypothesized signal-to-noise-and-interference ratio (SINR) for the apparatus, and characterized statistics of noise and interference observed at a receiver for the apparatus. Data are processed in accordance with the rate selected for the apparatus.

摘要翻译： 基于装置的假设的信噪比干扰比（SINR）为装置接收选定的速率，以及在装置的接收机处观察到的噪声和干扰的特征统计。 根据为设备选择的速率处理数据。

公开(公告)号：US20100323717A1

公开(公告)日：2010-12-23

申请号：US12761224

申请日：2010-04-15

申请人： Parag Arun Agashe ,  Ravi Palanki ,  Tingfang Ji ,  Naga Bhushan

发明人： Parag Arun Agashe ,  Ravi Palanki ,  Tingfang Ji ,  Naga Bhushan

IPC分类号： H04W24/00

CPC分类号： G01S5/0045 ,  G01S1/68 ,  G01S11/06 ,  H04W64/003 ,  H04W84/045

摘要： Methods, apparatuses, and computer program products are disclosed for facilitating proximity detection in wireless networks. a location enhancement device is activated and a unique identifier associated with the location enhancement device is ascertained. A positioning signal that emulates a base station reference signal is then generated, which includes the unique identifier. The positioning signal is transmitted from the location enhancement device, wherein the positioning signal is detectable by wireless terminals proximate to the location enhancement device. Proximity detection is then facilitated by processing the positioning signal.

摘要翻译： 公开了用于促进无线网络中的接近检测的方法，装置和计算机程序产品。 激活位置增强设备并且确定与位置增强设备相关联的唯一标识符。 然后生成模拟基站参考信号的定位信号，其包括唯一标识符。 定位信号从位置增强设备发送，其中定位信号可由靠近位置增强设备的无线终端检测。 然后通过处理定位信号来促进接近检测。

公开(公告)号：US20100240373A1

公开(公告)日：2010-09-23

申请号：US12727168

申请日：2010-03-18

申请人： Tingfang Ji ,  Gavin Bernard Horn ,  Ravi Palanki ,  Parag Arun Agashe

发明人： Tingfang Ji ,  Gavin Bernard Horn ,  Ravi Palanki ,  Parag Arun Agashe

IPC分类号： H04W36/34

CPC分类号： H04W36/08 ,  H04W4/06 ,  H04W76/10 ,  Y02D70/1222 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/22

摘要： Systems and methodologies are described that facilitate providing hybrid cell access points that can support closed subscriber groups (CSG) while providing at least a minimum level of service to wireless devices excluded from the CSG. Hybrid cell access points can allow non-member wireless devices to camp and receive paging signals. Upon receiving a request for resources from non-member wireless devices, hybrid cell access points can handover the non-member wireless devices to an access point that can serve the non-member wireless devices, provide a portion of resources compared to a disparate portion provided to member wireless devices, and/or the like. In addition, hybrid cell access points can vary levels of service and downlink transmission power to provide load balancing for access points. Varying levels of service and downlink transmission power can facilitate additional functionality, such as reducing transmission power to serve member devices while mitigating interference to non-member devices.

摘要翻译： 描述了系统和方法，其便于提供可以支持封闭用户组（CSG）的混合小区接入点，同时向从CSG排除的无线设备提供至少最低级别的服务。 混合小区接入点可以允许非成员无线设备驻留和接收寻呼信号。 在从非成员无线设备接收到对资源的​​请求时，混合小区接入点可以将非成员无线设备切换到可以服务非成员无线设备的接入点，提供与提供的不同部分相比的一部分资源 到成员无线设备和/或类似物。 此外，混合小区接入点可以改变服务等级和下行链路传输功率，以为接入点提供负载均衡。 不同级别的服务和下行链路传输功率可以促进附加的功能，例如降低传输功率以服务于成员设备，同时减轻对非成员设备的干扰。

公开(公告)号：US20100232524A1

公开(公告)日：2010-09-16

申请号：US12718216

申请日：2010-03-05

申请人： Wanshi Chen ,  Peter Gaal ,  Tingfang Ji ,  Juan Montojo ,  Nathan E. Tenny

发明人： Wanshi Chen ,  Peter Gaal ,  Tingfang Ji ,  Juan Montojo ,  Nathan E. Tenny

IPC分类号： H04L27/00 ,  H04B7/00

CPC分类号： H04W36/385 ,  H04W72/042 ,  H04W72/0453 ,  H04W72/048

摘要： Techniques for conveying system bandwidths in a wireless communication system are described. In an aspect, system bandwidth information may be signaled to first user equipments (UEs) supporting a first set of system bandwidths and second UEs supporting a second set of system bandwidths. In one design, a base station may obtain and broadcast system bandwidth information indicating a first system bandwidth for the first UEs and a second system bandwidth for the second UEs. The first system bandwidth may be selected from the first set, and the second system bandwidth may be selected from the second set, which may be a superset of the first set. The system bandwidth information may include a first part and a second part. The first part may convey the first system bandwidth for the first UEs. The first and second parts may convey the second system bandwidth for the second UEs.

摘要翻译： 描述了在无线通信系统中传送系统带宽的技术。 在一方面，系统带宽信息可以被发送到支持第一组系统带宽的第一用户设备（UE）和支持第二组系统带宽的第二UE。 在一种设计中，基站可以获得并广播指示第一UE的第一系统带宽的系统带宽信息和第二UE的第二系统带宽。 可以从第一组中选择第一系统带宽，并且可以从第二组中选择第二系统带宽，第二组可以是第一组的超集。 系统带宽信息可以包括第一部分和第二部分。 第一部分可以传达第一UE的第一系统带宽。 第一和第二部分可以传达用于第二UE的第二系统带宽。

公开(公告)号：US20100020771A1

公开(公告)日：2010-01-28

申请号：US12359992

申请日：2009-01-26

申请人： Tingfang Ji ,  Avneesh Agrawal ,  Alexei Y. Gorokhov

发明人： Tingfang Ji ,  Avneesh Agrawal ,  Alexei Y. Gorokhov

IPC分类号： H04J3/00 ,  H04B7/005

CPC分类号： H04L5/0048 ,  H04L1/0004 ,  H04L1/001 ,  H04L1/0026 ,  H04L1/1812 ,  H04L5/0044 ,  H04L5/005 ,  H04L5/0053 ,  H04L5/0057 ,  H04L5/006 ,  H04L5/0062 ,  H04L25/0224 ,  H04W52/241 ,  H04W52/243 ,  H04W52/325 ,  H04W52/343

摘要： Techniques for mitigating pilot pollution in a wireless network are described. In an aspect, pilot pollution may be mitigated by reducing density and/or transmit power of common pilots whenever possible. A cell may send a common pilot at a first density and a first transmit power level during a first time period and may send the common pilot at a second density and a second transmit power level during a second time period. The second density may be lower than the first density and/or the second transmit power level may be lower than the first transmit power level. Lower density may be achieved by sending the common pilot less frequently, on fewer subcarriers, and/or from fewer antennas. The cell may determine whether to reduce the density and/or transmit power of the common pilot based on network loading, SINRs of terminals, etc. In another aspect, pilot pollution may be mitigated by performing pilot cancellation at a terminal.

摘要翻译： 描述了减轻无线网络中导频污染的技术。 在一方面，可能通过尽可能减少公共飞行员的密度和/或发射功率来减轻飞行员污染。 小区可以在第一时间段期间以第一密度和第一发射功率电平发送公共导频，并且可以在第二时间段期间以第二密度和第二发射功率电平发送公共导频。 第二密度可以低于第一密度，和/或第二发射功率电平可能低于第一发射功率电平。 较低的密度可以通过在较少的子载波上和/或从更少的天线较少频率地发送公共导频来实现。 小区可以基于网络负载，终端的SINR等来确定是否降低公共导频的密度和/或发射功率。另一方面，可以通过在终端执行导频消除来减轻导频污染。

公开(公告)号：US20100002656A1

公开(公告)日：2010-01-07

申请号：US12483125

申请日：2009-06-11

申请人： Tingfang Ji ,  Kambiz Azarian Yazdi ,  Dexu Lin ,  Anastasios Stamoulis ,  Arnab Chakrabarti

发明人： Tingfang Ji ,  Kambiz Azarian Yazdi ,  Dexu Lin ,  Anastasios Stamoulis ,  Arnab Chakrabarti

IPC分类号： H04W72/04 ,  H04J3/00

CPC分类号： H04W72/082 ,  H04B7/15542 ,  H04W72/042 ,  H04W84/047 ,  H04W88/04

摘要： Systems and methodologies are described that facilitate providing opportunistic relay node communication based on scheduling of other communications in a wireless network. In particular, a relay node can maintain a backhaul link with an access point and an access link with a mobile device to facilitate communicating information therebetween. Time slots during which the backhaul link is active can be determined and avoided during scheduling access link communications with the mobile device. Furthermore, resource assignments from the access point to the mobile device can be monitored and decoded such that time slots associated therewith can also be determined and avoided. Thus, the relay node can communicate with mobile devices in time slots where the backhaul link is inactive and/or the mobile devices are not occupied communicating directly with the access point.

摘要翻译： 描述了系统和方法，其便于基于无线网络中的其他通信的调度提供机会性中继节点通信。 特别地，中继节点可以利用移动设备来维护与接入点和接入链路的回程链路，以促进其间的通信。 在调度与移动设备的接入链路通信期间，可以确定和避免回程链路处于活动状态的时隙。 此外，可以监视和解码从接入点到移动设备的资源分配，使得与其相关联的时隙也可以被确定和避免。 因此，中继节点可以在回程链路不活动的时隙和/或移动设备不占用与接入点直接通信的时隙中与移动设备进行通信。

公开(公告)号：US20100002597A1

公开(公告)日：2010-01-07

申请号：US12477823

申请日：2009-06-03

申请人： Hemanth Sampath ,  Tingfang Ji

发明人： Hemanth Sampath ,  Tingfang Ji

IPC分类号： H04L12/26 ,  H04L27/28

CPC分类号： H04W72/085 ,  H04L5/0048 ,  H04L5/0053 ,  H04L25/0204 ,  H04L25/0222 ,  H04L2025/03414 ,  H04L2025/03426 ,  H04L2025/03802

摘要： The scheduler in a base station needs CQI information from a terminal for all re-use sets every 5 ms. to decide on which re-use set to schedule a given terminal. For MIMO users, the problem is that the CQI cannot be reconstructed for all re-use sets, using the current design. Solution: (1) For Multiple Code Word MIMO users, a MIMO VCQI connection layer message enables the base station to reconstruct the MIMO-CQI for all reuse sets on a packet-by-packet basis. This will enable dynamic scheduling (RESTRICTIVE REUSE) gains. (2) For Single Code Word users, dynamic RESTRICTIVE REUSE can be obtained by changing the CQI reporting format, and also sending a MIMO-VCQI connection layer message. (3) For Single Code Word design, quasi-static scheduling gains can be obtained by sending a MIMO-VCQI connection layer message.

摘要翻译： 基站中的调度器每5ms需要来自终端的所有重用集合的CQI信息。 决定哪个重用设置来安排一个给定的终端。 对于MIMO用户，问题在于，使用当前设计，不能为所有重用集合重建CQI。 解决方案：（1）对于多码字MIMO用户，MIMO VCQI连接层消息使得基站能够逐个分组地重建所有重用集合的MIMO-CQI。 这将使动态调度（限制性重用）获益。 （2）对于单码字用户，可以通过改变CQI报告格式，并发送MIMO-VCQI连接层消息来获得动态限制重用。 （3）对于单码字设计，可以通过发送MIMO-VCQI连接层消息来获得准静态调度增益。

公开(公告)号：US20090213950A1

公开(公告)日：2009-08-27

申请号：US12276649

申请日：2008-11-24

申请人： Alexei Gorokhov ,  Ayman Fawzy Naguib ,  Arak Sutivong ,  Dhananjay Ashok Gore ,  Tingfang Ji

发明人： Alexei Gorokhov ,  Ayman Fawzy Naguib ,  Arak Sutivong ,  Dhananjay Ashok Gore ,  Tingfang Ji

IPC分类号： H04L27/28 ,  H04J11/00

CPC分类号： H04L25/03866 ,  H04B1/715 ,  H04B7/0697 ,  H04B7/12 ,  H04B2001/7154 ,  H04L5/0012 ,  H04L5/0026 ,  H04L5/0037 ,  H04L5/0051 ,  H04L5/0058 ,  H04L25/0204 ,  H04L25/0216 ,  H04L25/0226 ,  H04L25/0228

摘要： Transmission patterns for pilot symbols transmitted from a mobile station or base station are provided. The pattern allows for improved receipt of the pilot symbols transmitted. In addition, schemes for improving the ability to multiplex pilot symbols without interference and/or biasing from different mobile stations over the same frequencies and in the same time slots.

摘要翻译： 提供从移动台或基站发送的导频符号的传输模式。 该模式允许改进对所发送的导频符号的接收。 另外，用于在相同的频率和相同的时隙中提高在不干扰和/或来自不同移动台的偏置的情况下导频符号的复用能力的方案。

公开(公告)号：US07554948B2

公开(公告)日：2009-06-30

申请号：US11147830

申请日：2005-06-07

申请人： Ayman Fawzy Naguib ,  Alexei Gorokhov ,  Dhananjay Gore ,  Tingfang Ji ,  Arak Sutivong

发明人： Ayman Fawzy Naguib ,  Alexei Gorokhov ,  Dhananjay Gore ,  Tingfang Ji ,  Arak Sutivong

IPC分类号： H04W4/00

CPC分类号： H04L1/1819 ,  H04B2001/7152 ,  H04L5/0023 ,  H04L25/0224

摘要： To receive packets with interference cancellation, block transmissions for the packets are received on time-frequency blocks used by these packets. Receiver spatial processing is performed on input symbols to obtain detected symbols. Each packet is demodulated and decoded based on all detected symbols obtained for all block transmissions received for the packet. For each packet that is decoded correctly, the transmission for the packet is terminated, the interference due to the packet is estimated, and the estimated interference is subtracted from the input symbols for all time-frequency blocks used by the packet. Receiver spatial processing is performed on the interference-canceled symbols to obtain new detected symbols for all time-frequency blocks used by all correctly decoded packets. Each packet decoded in error and overlapping at least partially with any correctly decoded packet may be demodulated and decoded based on all detected symbols available for that packet.

摘要翻译： 为了接收具有干扰消除的分组，在这些分组使用的时间 - 频率块上接收分组的块传输。 对输入符号执行接收机空间处理以获得检测符号。 基于为分组接收到的所有块传输获得的所有检测到的符号，对每个分组进行解调和解码。 对于正确解码的每个分组，分组的传输被终止，估计由于分组引起的干扰，并且从分组使用的所有时间频率块的输入符号中减去所估计的干扰。 对干扰消除的符号进行接收机空间处理，以获得由所有正确解码的分组使用的所有时间频率块的新的检测符号。 至少部分地与任何正确解码的分组进行错误解码和重叠的每个分组可以基于可用于该分组的所有检测到的符号进行解调和解码。

公开(公告)号：US07512412B2

公开(公告)日：2009-03-31

申请号：US11158587

申请日：2005-06-21

申请人： Murat Mese ,  Ayman Fawzy Naguib ,  Arak Sutivong ,  Dhananjay Gore ,  Alexei Gorokhov ,  Tingfang Ji

发明人： Murat Mese ,  Ayman Fawzy Naguib ,  Arak Sutivong ,  Dhananjay Gore ,  Alexei Gorokhov ,  Tingfang Ji

IPC分类号： H04B7/00 ,  H04Q7/20

CPC分类号： H04W52/243 ,  H04W52/34

摘要： Techniques for controlling transmit power and the amount of overlapping in a quasi-orthogonal system are described. A base station for a sector receives transmissions from terminals in that sector and neighbor sectors and determines performance metrics (e.g., overall throughput) and/or QoS metrics (e.g., minimum data rate) for the terminals in the sector. The base station updates an overlapping factor based on the performance metrics and updates a QoS power control parameter based on the QoS metrics. The overlapping factor indicates the average number of overlapping transmissions sent simultaneously on each time-frequency block usable for data transmission. The QoS power control parameter ensures that the terminals in the sector can achieve minimum QoS requirements. A power control mechanism with multiple loops is used to adjust the transmit power of each terminal. The overlapping factor and QoS power control parameter are updated by two of the loops.

摘要翻译： 描述了用于控制发射功率的技术和准正交系统中的重叠量。 用于扇区的基站从该扇区和相邻扇区中的终端接收传输，并确定扇区中的终端的性能度量（例如总吞吐量）和/或QoS度量（例如，最小数据速率）。 基站基于性能度量来更新重叠因子，并且基于QoS度量来更新QoS功率控制参数。 重叠因子表示可用于数据传输的每个时间频率块上同时发送的重叠传输的平均数。 QoS功率控制参数确保了扇区中的终端可以达到最低的QoS要求。 使用具有多个环路的功率控制机构来调整每个终端的发射功率。 重叠因子和QoS功率控制参数由两个循环更新。