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1. 发明申请

US20060211441A1 Power control and overlapping control for a quasi-orthogonal communication system 有权
公开(公告)号：US20060211441A1
公开(公告)日：2006-09-21
申请号：US11158587
申请日：2005-06-21
申请人： Murat Mese , Ayman Naguib , Arak Sutivong , Dhananjay Gore , Alexei Gorokhov , Tingfang Ji
发明人： Murat Mese , Ayman Naguib , Arak Sutivong , Dhananjay Gore , Alexei Gorokhov , Tingfang Ji
IPC分类号： H04B7/00
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.

2. 发明申请

US20060209732A1 Pilot signal transmission for an orthogonal frequency division wireless communication system 有权
标题翻译：用于正交频分无线通信系统的导频信号传输
公开(公告)号：US20060209732A1
公开(公告)日：2006-09-21
申请号：US11261361
申请日：2005-10-27
申请人： Alexei Gorokhov , Ayman Naguib , Arak Sutivong , Dhananjay Gore , Tingfang Ji
发明人： Alexei Gorokhov , Ayman Naguib , Arak Sutivong , Dhananjay Gore , Tingfang Ji
IPC分类号： H04B7/00
CPC分类号： H04L27/2613 , H04B1/715 , H04B7/0413 , H04B7/12 , H04B2001/7154 , H04L1/0026 , H04L5/0023 , H04L5/0051 , H04L5/0058 , H04L25/0204 , H04L25/0216 , H04L25/0222 , H04L25/0226 , H04L25/0228 , H04L25/03866 , H04L27/261 , H04W16/28 , H04W72/1205
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 for frequency selective channels and users. 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。该模式允许改进对频率选择信道和用户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。

3. 发明申请

US20060209670A1 Pilot signal transmission for an orthogonal frequency division wireless communication system 有权
公开(公告)号：US20060209670A1
公开(公告)日：2006-09-21
申请号：US11083693
申请日：2005-03-17
申请人： Alexei Gorokhov , Ayman Naguib , Arak Sutivong , Dhananjay Gore , Tingfang Ji
发明人： Alexei Gorokhov , Ayman Naguib , Arak Sutivong , Dhananjay Gore , Tingfang Ji
IPC分类号： H04J11/00 , H04Q7/00 , H04B3/10
CPC分类号： H04L5/023 , H04L5/0007 , H04L5/0039 , H04L5/0051 , H04L5/0062 , H04L27/261
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.

4. 发明申请

US20060280116A1 Low complexity beamforming for multiple antenna systems 有权
公开(公告)号：US20060280116A1
公开(公告)日：2006-12-14
申请号：US11158585
申请日：2005-06-21
申请人： Tingfang Ji , Ayman Naguib , Arak Sutivong , Dhananjay Gore , Alexei Gorokhov , Hemanth Sampath , Min Dong
发明人： Tingfang Ji , Ayman Naguib , Arak Sutivong , Dhananjay Gore , Alexei Gorokhov , Hemanth Sampath , Min Dong
IPC分类号： H04J11/00 , H04Q7/00
CPC分类号： H01Q3/26 , H04B1/713 , H04B7/0617 , H04B7/0626 , H04L27/2626
摘要： Methods and apparatuses are disclosed that utilize the discrete Fourier transform of time domain responses to generate beamforming weights for wireless communication. In addition, in some embodiments frequency subcarriers constituting less than all of the frequency subcarriers allocated for communication to a user may utilized for generating the beamforming weights.

5. 发明申请

US20060209973A1 Pilot signal transmission for an orthogonal frequency division wireless communication system 有权
公开(公告)号：US20060209973A1
公开(公告)日：2006-09-21
申请号：US11083708
申请日：2005-03-17
申请人： Alexei Gorokhov , Ayman Naguib , Arak Sutivong , Dhananjay Gore , Tingfang Ji
发明人： Alexei Gorokhov , Ayman Naguib , Arak Sutivong , Dhananjay Gore , Tingfang Ji
IPC分类号： H04L27/28
CPC分类号： H04L5/0048 , H04L5/0023
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.

6. 发明授权

US07512412B2 Power control and overlapping control for a quasi-orthogonal communication system 有权
标题翻译：准正交通信系统的功率控制和重叠控制
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。

7. 发明申请

US20060291371A1 Softer and soft handoff in an orthogonal frequency division wireless communication system 有权
标题翻译：在正交频分无线通信系统中更软和更软切换
公开(公告)号：US20060291371A1
公开(公告)日：2006-12-28
申请号：US11132765
申请日：2005-05-18
申请人： Arak Sutivong , Ayman Naguib , Dhananjay Gore , Alexei Gorokhov , Tingfang Ji
发明人： Arak Sutivong , Ayman Naguib , Dhananjay Gore , Alexei Gorokhov , Tingfang Ji
IPC分类号： H04J11/00
CPC分类号： H04B1/713 , H04B7/022 , H04B7/0491 , H04L5/0012 , H04L5/0023 , H04L5/0048 , H04L5/006 , H04L5/0069 , H04L25/0226 , H04L27/2613 , H04W36/18 , H04W48/08
摘要： Transmission patterns for pilot symbols transmitted from a mobile station or base station are provided. The patterns may be selected according to a location of the mobile station with respect to one or more antennas are provided. In some aspects, the pattern may be selected based upon the distance between the mobile station and the one or more antennas. In other aspect, the pattern may be based upon whether the mobile station is in handoff.
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。可以根据移动台相对于一个或多个天线的位置来选择模式。在一些方面，可以基于移动台与一个或多个天线之间的距离来选择模式。在另一方面，该模式可以基于移动台是否处于切换状态。

8. 发明申请

US20060274691A1 Reception of H-ARQ transmissions with interference cancellation in a quasi-orthogonal communication system 有权
公开(公告)号：US20060274691A1
公开(公告)日：2006-12-07
申请号：US11147830
申请日：2005-06-07
申请人： Ayman Naguib , Alexei Gorokhov , Dhananjay Gore , Tingfang Ji , Arak Sutivong
发明人： Ayman Naguib , Alexei Gorokhov , Dhananjay Gore , Tingfang Ji , Arak Sutivong
IPC分类号： H04Q7/00
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.

9. 发明申请

US20060234646A1 Rate selection for a quasi-orthogonal communication system 有权
标题翻译：准正交通信系统的速率选择
公开(公告)号：US20060234646A1
公开(公告)日：2006-10-19
申请号：US11150417
申请日：2005-06-10
申请人： Ayman Naguib , Alexei Gorokhov , Tingfang Ji , Dhananjay Gore , Arak Sutivong
发明人： Ayman Naguib , Alexei Gorokhov , Tingfang Ji , Dhananjay Gore , Arak Sutivong
IPC分类号： H04B7/00 , H04B1/00
CPC分类号： H04L1/0019 , H04L1/0003 , H04L1/0016 , H04L1/06 , H04L25/0212 , H04L25/0228 , H04L25/0242 , H04L25/0256
摘要： To select a rate for a transmitter in a communication system, a receiver obtains a channel response estimate and a received SINR estimate for the transmitter, e.g., based on a pilot received from the transmitter. The receiver computes a hypothesized SINR for the transmitter based on the channel response estimate and the received SINR estimate. The receiver then selects a rate for the transmitter based on (1) the hypothesized SINR and (2) characterized statistics of noise and interference at the receiver for the transmitter, which may be given by a probability density function (PDF) of SINR loss with respect to the hypothesized SINR. A look-up table of rate versus hypothesized SINR may be generated a priori for the PDF of SINR loss. The receiver may then apply the hypothesized SINR for the transmitter to the look-up table, which then provides the rate for the transmitter.
摘要翻译：为了在通信系统中选择发射机的速率，接收机例如基于从发射机接收到的导频，获得用于发射机的信道响应估计和接收到的SINR估计。接收机基于信道响应估计和接收的SINR估计来计算发射机的假设SINR。接收机然后基于（1）假设的SINR和（2）用于发射机的接收机处的噪声和干扰的特征统计来选择发射机的速率，其可以由SINR丢失的概率密度函数（PDF）给出，尊重假设的SINR。速率与假设SINR的查找表可能会先于SINR损失的PDF生成。然后，接收机可以将发射机的假设SINR应用于查找表，然后查找表提供发射机的速率。

10. 发明申请

US20060209754A1 Channel structures for a quasi-orthogonal multiple-access communication system 有权
公开(公告)号：US20060209754A1
公开(公告)日：2006-09-21
申请号：US11129140
申请日：2005-05-13
申请人： Tingfang Ji , Ayman Naguib , Arak Sutivong , Dhananjay Gore , Alexei Gorokhov
发明人： Tingfang Ji , Ayman Naguib , Arak Sutivong , Dhananjay Gore , Alexei Gorokhov
IPC分类号： H04Q7/00
CPC分类号： H04J11/005 , H04B1/7143
摘要： A channel structure has at least two channel sets. Each channel set contains multiple channels and is associated with a specific mapping of the channels to the system resources available for data transmission. Each channel set may be defined based on a channel tree having a hierarchical structure. To achieve intra-cell interference diversity, the channel-to-resource mapping for each channel set is pseudo-random with respect to the mapping for each remaining channel set. In each scheduling interval, terminals are scheduled for transmission on the forward and/or reverse link. The scheduled terminals are assigned channels from the channel sets. Multiple terminals may use the same system resources and their overlapping transmissions may be separated in the spatial domain. For example, beamforming may be performed to send multiple overlapping transmissions on the forward link, and receiver spatial processing may be performed to separate out multiple overlapping transmissions received on the reverse link.

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