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1. 发明申请

WO2008116172A2 SIMPLIFIED EQUALIZATION FOR CORRELATED CHANNELS IN OFDMA 审中-公开
标题翻译： OFDMA中相关通道的简化均衡
公开(公告)号：WO2008116172A2
公开(公告)日：2008-09-25
申请号：PCT/US2008/057864
申请日：2008-03-21
申请人： QUALCOMM Incorporated , BUDIANU, Petru Cristian , SAMPATH, Hemanth , GOROKHOV, Alexei , GORE, Dhananjay Ashok
发明人： BUDIANU, Petru Cristian , SAMPATH, Hemanth , GOROKHOV, Alexei , GORE, Dhananjay Ashok
IPC分类号： H04L5/02 , H04L25/03 , H04L25/02 , H04L27/26
CPC分类号： H04L5/023 , H04L25/0232 , H04L25/0244 , H04L25/03019 , H04L27/2647 , H04L2025/03414 , H04L2025/03426
摘要： Systems and methodologies are described that facilitate equalization of received signals in a wireless communication environment. Multiple transmit and/or receive antennas and utilize MIMO technology to enhance performance. A single tile of transmitted data, including a set of modulation symbols, can be received at multiple receive antennas, resulting in multiple tiles of received modulation symbols. Corresponding modulation symbols from multiple received tiles can be processed as a function of channel and interference estimates to generate a single equalized modulation symbol. Typically, the equalization process is computationally expensive. However, the channels are highly correlated. This correlation is reflected in the channel estimates and can be utilized to reduce complex equalization operations. In particular, a subset of the equalizers can be generated based upon the equalizer function and the remainder can be generated using interpolation. In addition, the equalizer function itself can be simplified.
摘要翻译：描述了促进无线通信环境中的接收信号的均衡的系统和方法。多个发射和/或接收天线并利用MIMO技术来提高性能。可以在多个接收天线处接收包括一组调制符号的传输数据的单个瓦片，从而导致接收到的调制符号的多个瓦片。来自多个接收瓦片的相应调制符号可以作为信道和干扰估计的函数来处理，以生成单个均衡调制符号。通常，均衡过程在计算上是昂贵的。然而，这些渠道是高度相关的。该相关性反映在信道估计中并且可以用于减少复数均衡操作。特别地，可以基于均衡器功能生成均衡器的子集，并且可以使用插值来生成余数。此外，均衡器功能本身可以简化。

2. 发明申请

WO2008118815A1 METHOD AND APPARATUS FOR IMPROVED ESTIMATION OF SELECTIVE CHANNELS IN AN OFDMA SYSTEM WITH DEDICATED PILOT TONES 审中-公开
标题翻译：用于改进在具有专用引航权的OFDMA系统中选择性信道估计的方法和装置
公开(公告)号：WO2008118815A1
公开(公告)日：2008-10-02
申请号：PCT/US2008/057917
申请日：2008-03-21
申请人： QUALCOMM Incorporated , BUDIANU, Petru Cristian , GORE, Dhananjay Ashok , GOROKHOV, Alexei
发明人： BUDIANU, Petru Cristian , GORE, Dhananjay Ashok , GOROKHOV, Alexei
IPC分类号： H04L25/02
CPC分类号： H04L25/0228 , H04L5/0051 , H04L25/021 , H04L25/0226 , H04L25/0248 , H04L25/03866
摘要： The present disclosure provides a method and apparatus of channel estimation for a wireless communication system. Dedicated pilot symbols transmitted over at least one time-frequency region for at least one user are received. Channel parameters are estimated for the at least one time-frequency region based on the received dedicated pilot symbols.
摘要翻译：本公开提供了一种用于无线通信系统的信道估计的方法和装置。接收通过至少一个用户的至少一个时间 - 频率区域发送的专用导频符号。基于所接收的专用导频符号，估计对于至少一个时间 - 频率区域的信道参数。

3. 发明申请

WO2008100962A2 USER POWER OFFSET ESTIMATION USING DEDICATED PILOT TONES FOR OFDMA 审中-公开
标题翻译：使用OFDMA专用导频音用户功率偏移估算
公开(公告)号：WO2008100962A2
公开(公告)日：2008-08-21
申请号：PCT/US2008/053758
申请日：2008-02-12
申请人： QUALCOMM Incorporated , BUDIANU, Petru Cristian , GOROKHOV, Alexei , GORE, Dhananjay Ashok
发明人： BUDIANU, Petru Cristian , GOROKHOV, Alexei , GORE, Dhananjay Ashok
IPC分类号： H04B7/005
CPC分类号： H04W52/34
摘要： A method of user power offset estimation for a wireless communication system is disclosed. Dedicated pilot symbols transmitted over at least one time-frequency region for a user are received. Power offset of the user is estimated based on the received dedicated pilot symbols.
摘要翻译：公开了一种用于无线通信系统的用户功率偏移估计的方法。接收用户在至少一个时频区域上传输的专用导频符号。基于接收到的专用导频符号来估计用户的功率偏移。

4. 发明申请

WO2008086110A2 PILOT DESIGN FOR IMPROVED CHANNEL AND INTERFERENCE ESTIMATION 审中-公开
标题翻译：用于改进通道和干扰估计的试验设计
公开(公告)号：WO2008086110A2
公开(公告)日：2008-07-17
申请号：PCT/US2008/050136
申请日：2008-01-03
申请人： QUALCOMM INCORPORATED , BUDIANU, Petru Cristian , GORE, Dhananjay Ashok , GOROKHOV, Alexei
发明人： BUDIANU, Petru Cristian , GORE, Dhananjay Ashok , GOROKHOV, Alexei
CPC分类号： H04L25/0202 , H04L5/0023 , H04L5/0048
摘要： Techniques for transmitting pilot and for processing received pilot to obtain channel and interference estimates are described. A terminal may generate pilot symbols for a first cluster in a time frequency block based on a first sequence and may generate pilot symbols for a second cluster in the time frequency block based on a second sequence. The first and second sequences may include common elements arranged in different orders and may be considered as different versions of a single sequence. The terminal may transmit the pilot symbols in their respective clusters. A base station may obtain received pilot symbols from multiple clusters in the time frequency block. The base station may form each of multiple basis vectors with multiple versions of the sequence assigned to the terminal and may process the received pilot symbols with the multiple basis vectors to obtain a channel estimate for the terminal.
摘要翻译：描述用于发送导频和处理接收导频以获得信道和干扰估计的技术。终端可以基于第一序列在时间频率块中生成用于第一簇的导频符号，并且可以基于第二序列在时间频率块中生成用于第二簇的导频符号。第一和第二序列可以包括以不同顺序排列的公共元素，并且可以被认为是单个序列的不同版本。终端可以在它们各自的簇中发送导频符号。基站可以在时间频率块中从多个簇获得接收到的导频符号。基站可以形成分配给终端的序列的多个版本的多个基本向量中的每一个，并且可以用多个基本向量处理所接收的导频符号以获得终端的信道估计。

5. 发明申请

WO2008052024A2 ACKNOWLEDGEMENT CHANNEL FOR WIRELESS COMMUNICATIONS 审中-公开
标题翻译：确认信道用于无线通信
公开(公告)号：WO2008052024A2
公开(公告)日：2008-05-02
申请号：PCT/US2007/082325
申请日：2007-10-24
申请人： QUALCOMM Incorporated , GOROKHOV, Alexei , KHANDEKAR, Aamod , BHUSHAN, Nagabhushana Sindhushayana , BUDIANU, Petru Cristian
发明人： GOROKHOV, Alexei , KHANDEKAR, Aamod , BHUSHAN, Nagabhushana Sindhushayana , BUDIANU, Petru Cristian
IPC分类号： H04L1/16
CPC分类号： H04L1/1671 , H04L1/1858 , H04W76/10
摘要： Systems and methodologies are described that facilitate establishing a forward link acknowledgement channel and transmitting acknowledgment signals thereupon. In particular, the signals can be spread within contiguous channel clusters in a tile where the signals in the cluster are mutually orthogonal to one another. Additionally, the signals can be multiplexed over a plurality of frequency regions. In this regard, the acknowledgment signals are diverse with respect to frequency and interference; moreover, the signals can be received and decoded even where one of the channels experiences high interference. Furthermore, the acknowledgement signals can also communicate a channel deassignment value, which allows devices to utilize persistent channels in communicating data to one another
摘要翻译：描述了便于建立前向链路确认信道并在其上发送确认信号的系统和方法。具体而言，信号可以散布在瓦片中的连续信道集群内，其中集群中的信号彼此正交。另外，信号可以在多个频率区域上复用。在这方面，确认信号在频率和干扰方面是不同的; 此外，即使其中一个通道经受高干扰，也可以接收和解码信号。此外，确认信号还可以传送信道解除指派值，该信道解除指派值允许设备在将数据传递给彼此的过程中利用固定信道

6. 发明申请

WO2008031111A1 SIGNALING TRANSMISSION WITH LOCALIZED SPREADING FOR WIRELESS COMMUNICATION 审中-公开
标题翻译：用于无线通信的本地化传输的信令传输
公开(公告)号：WO2008031111A1
公开(公告)日：2008-03-13
申请号：PCT/US2007/078078
申请日：2007-09-10
申请人： QUALCOMM INCORPORATED , PALANKI, Ravi , MALLIK, Siddhartha , BUDIANU, Petru Cristian , GOROKHOV, Alexei
发明人： PALANKI, Ravi , MALLIK, Siddhartha , BUDIANU, Petru Cristian , GOROKHOV, Alexei
IPC分类号： H04L27/26
CPC分类号： H04L5/0053 , H04L1/1692 , H04L5/0007
摘要： Techniques for transmitting signaling with localized spreading are described. In one design, a transmitter (e.g., a base station) spreads multiple signaling symbols to obtain multiple sets of output symbols and further maps the multiple sets of output symbols to multiple time frequency blocks. The spreading may be localized to each time frequency block. Prior to the spreading, the transmitter may scale the multiple signaling symbols with multiple gains determined based on the transmit power for these signaling symbols. The transmitter may scramble the scaled signaling symbols to obtain scrambled symbols and may spread the scrambled symbols to obtain the multiple sets of output symbols. The transmitter may map each set of output symbols to a respective time frequency block.
摘要翻译：描述了用于发送具有局部扩展的信令的技术。在一种设计中，发射机（例如，基站）扩展多个信令符号以获得多组输出符号，并将多组输出符号进一步映射到多个时间频率块。扩展可以被定位到每个时间频率块。在扩展之前，发射机可以根据这些信令符号的发射功率确定的多个增益来缩放多个信令符号。发射机可以加密缩放的信令符号以获得加扰符号，并且可以扩展加扰符号以获得多组输出符号。发射机可以将每组输出符号映射到相应的时间频率块。

7. 发明申请

WO2011150269A1 SIGNAL CHARACTERISTIC-BASED LEADING EDGE DETECTION 审中-公开
标题翻译：基于信号特征的引导边缘检测
公开(公告)号：WO2011150269A1
公开(公告)日：2011-12-01
申请号：PCT/US2011/038225
申请日：2011-05-26
申请人： QUALCOMM INCORPORATED , BUDIANU, Petru Cristian , JULIAN, David Jonathan , EKBAL, Amal
发明人： BUDIANU, Petru Cristian , JULIAN, David Jonathan , EKBAL, Amal
IPC分类号： H03K5/08 , H04B1/7163
CPC分类号： H03K5/082 , H03K5/1534 , H04B1/71637
摘要： In a signal-based gain control scheme, one or more gain levels used for processing signals are selected based on characteristics of previously received signals. For example, different gain levels may be used to receive sets of signals whereupon certain characteristics of the received sets of signals are determined. One or more gain levels are then selected based on these characteristics whereby another signal is processed based on the selected gain level(s). In some aspects, the signal-based gain control scheme may be employed to facilitate two-way ranging operations between two devices. For example, leading edge detection may involve determining a characteristic of a received signal, determining a threshold based on the characteristic, and identifying a leading edge associated with the received signal based on the threshold. In some aspects, the signal-based gain control scheme may be employed in an ultra-low power pulse-based communication system (e.g., in ultra-wideband communication devices).
摘要翻译：在基于信号的增益控制方案中，基于先前接收的信号的特性来选择用于处理信号的一个或多个增益电平。例如，可以使用不同的增益水平来接收信号集合，从而确定所接收的信号组的某些特性。然后基于这些特征选择一个或多个增益电平，由此基于所选择的增益电平处理另一个信号。在一些方面，可以采用基于信号的增益控制方案来促进两个设备之间的双向测距操作。例如，前沿检测可以包括确定接收信号的特性，基于特性确定阈值，以及基于阈值来识别与接收信号相关联的前沿。在一些方面，基于信号的增益控制方案可以用于基于超低功率脉冲的通信系统（例如，在超宽带通信设备中）。

8. 发明申请

WO2011150272A1 SYSTEM AND METHOD FOR TRANSMITTING AND RECEIVING SIGNAL WITH QUASI-PERIODIC PULSE SEQUENCE 审中-公开
标题翻译：用周期性脉冲序列发送和接收信号的系统和方法
公开(公告)号：WO2011150272A1
公开(公告)日：2011-12-01
申请号：PCT/US2011/038231
申请日：2011-05-26
申请人： QUALCOMM Incorporated , BUDIANU, Petru Cristian , SHI, Jun , JULIAN, David Jonathan
发明人： BUDIANU, Petru Cristian , SHI, Jun , JULIAN, David Jonathan
IPC分类号： H04B1/717 , H04B1/7183
CPC分类号： H04L25/49 , H04B1/7174 , H04B1/7183 , H04B2001/6908
摘要： System and method are disclosed for synchronization of a transmitting device and a receiving device that communicate with each other via pulse modulation. The synchronization technique entails the transmitting device sending one or more quasi-periodic pulse sequences to the receiving device. A quasi-periodic pulse sequence is based on a substantially periodic pulse sequence, and may include some non-periodic pulses or not include some periodic pulses. The transmitting device may transmit frames each including a preamble that comprises one or more quasi-periodic pulse sequences, and a data payload that may comprise data. The receiving device receives the signal, generates samples of the signal, and detects the quasi-periodic pulse sequences in the received signal by analyzing samples based on a sample associated with a pulse and the period associated with the substantially periodic pulse sequence. The receiving device is further able to detect frames based on the detection of the sequence, and extract data therefrom.
摘要翻译：公开了用于通过脉冲调制相互通信的发送设备和接收设备的同步的系统和方法。同步技术需要发送设备向接收设备发送一个或多个准周期脉冲序列。准周期性脉冲序列基于基本上周期性的脉冲序列，并且可以包括一些非周期脉冲或不包括一些周期脉冲。发送设备可以发送各自包括包括一个或多个准周期性脉冲序列的前同步码的帧和可以包括数据的数据有效载荷。接收装置接收信号，产生信号样本，并且通过基于与脉冲相关联的样本和与基本周期性脉冲序列相关联的周期来分析样本来检测接收信号中的准周期脉冲序列。接收装置还能够根据序列的检测来检测帧，并从中提取数据。

9. 发明申请

WO2011149497A1 TWO-WAY RANGING MESSAGING SCHEME 审中-公开
标题翻译：双向消息传递方案
公开(公告)号：WO2011149497A1
公开(公告)日：2011-12-01
申请号：PCT/US2010/061930
申请日：2010-12-22
申请人： QUALCOMM INCORPORATED , EKBAL, Amal , JULIAN, David Jonathan , BUDIANU, Petru Cristian
发明人： EKBAL, Amal , JULIAN, David Jonathan , BUDIANU, Petru Cristian
IPC分类号： G01S5/14 , G01S13/76
CPC分类号： G01S13/765 , G01S5/14
摘要： In a two-way ranging scheme where a first apparatus (e.g., device) determines a distance to a second apparatus (e.g., device), specified packets are sent between these apparatuses at specified times to facilitate the determination of the distance. In some aspects, these packets may be defined and/or sent in a manner that enables the apparatuses to detect a leading edge of a received packet with a high degree of accuracy. For example, an apparatus may transmit a packet a defined period of time after transmitting or receiving another packet. In addition, a packet may comprise a defined symbol sequence that is used by an apparatus that receives the packet to identify a leading edge of the packet.
摘要翻译：在第一装置（例如，设备）确定到第二装置（例如，设备）的距离的双向测距方案中，在指定的时间在这些装置之间发送指定的分组以便于确定距离。在一些方面，这些分组可以以使得这些装置能够以高准确度检测接收到的分组的前沿的方式来定义和/或发送。例如，装置可以在发送或接收另一个分组之后的规定时间段内发送分组。另外，分组可以包括定义的符号序列，该定义的符号序列由接收分组以识别分组的前沿的设备使用。

10. 发明申请

WO2011041605A2 EMULATION OF N-BITS UNIFORM QUANTIZER FROM MULTIPLE INCOHERENT AND NOISY ONE-BIT MEASUREMENTS 审中-公开
标题翻译： N-BITS均匀量子从多个不可靠和噪声单位测量中的模拟
公开(公告)号：WO2011041605A2
公开(公告)日：2011-04-07
申请号：PCT/US2010/050996
申请日：2010-09-30
申请人： QUALCOMM INCORPORATED , BARBOTIN, Yann , BUDIANU, Petru Cristian
发明人： BARBOTIN, Yann , BUDIANU, Petru Cristian
IPC分类号： H04L27/08
CPC分类号： H04B1/71637
摘要： Certain aspects of the present disclosure relate to a method for emulating -bits uniform quantization of a received pulse signal by using one-bit signal measurements.
摘要翻译：本公开的某些方面涉及通过使用一比特信号测量来仿真对接收的脉冲信号的均匀量化的方法。

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