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11. 发明申请

WO2007051181A1 SDMA RESOURCE MANAGEMENT 审中-公开
标题翻译： SDMA资源管理
公开(公告)号：WO2007051181A1
公开(公告)日：2007-05-03
申请号：PCT/US2006/060327
申请日：2006-10-27
申请人： QUALCOMM INCORPORATED , JI, Tingfang , GORE, Dhananjay Ashok , GOROKHOV, Alexei , DONG, Min , AGRAWAL, Avneesh
发明人： JI, Tingfang , GORE, Dhananjay Ashok , GOROKHOV, Alexei , DONG, Min , AGRAWAL, Avneesh
IPC分类号： H04L27/26 , H04Q7/36
CPC分类号： H04W72/06 , H04B1/713 , H04B7/026 , H04L5/0023 , H04L5/0037 , H04L5/0044 , H04L5/023
摘要： A method for allocating resources in a wireless communications environment comprises receiving a mapping between a first hop-port and frequency range, and determining whether to map a second access terminal to a second hop-port that is mapped to at least the same frequency range during a substantially similar instance in time, the determination made as a function of characteristics relating to a first access terminal associated with the first hop-port. The method can further include determining that the first access terminal is a candidate for employing Space-Division Multiple Access (SDMA), and mapping the second-hop port and associating the second access terminal with the second hop-port when the second access terminal is also a candidate for employing SDMA.
摘要翻译：一种用于在无线通信环境中分配资源的方法包括：接收第一跳跃端口和频率范围之间的映射，以及确定是否将第二接入终端映射到映射到至少相同频率范围的第二跳频端口基本相似的时间实例，根据与与第一跳跃端口相关联的第一接入终端的特性的函数进行确定。该方法还可以包括确定第一接入终端是采用空分多址（SDMA）的候选者，并且当第二接入终端是第二接入终端时，映射第二跳端口并将第二接入终端与第二跳接口相关联也是采用SDMA的候选人。

12. 发明申请

WO2006020020A1 MULTIPLE MODULATION SCHEMES IN SINGLE RATE LAYERING WIRELESS COMMUNICATION SYSTEMS 审中-公开
标题翻译：单速无线通信系统中的多种调制方案
公开(公告)号：WO2006020020A1
公开(公告)日：2006-02-23
申请号：PCT/US2005/025156
申请日：2005-07-15
申请人： QUALCOMM INCORPORATED , GOROKHOV, Alexei , AGRAWAL, Avneesh , GORE, Dhananjay Ashok , KADOUS, Tamer
发明人： GOROKHOV, Alexei , AGRAWAL, Avneesh , GORE, Dhananjay Ashok , KADOUS, Tamer
IPC分类号： H04L1/06
CPC分类号： H04L1/005 , H04L1/0003 , H04L1/0041 , H04L1/06
摘要： A MIMO communication system is adapted to encode multiple data streams at the same adaptable rate. Accordingly, the set of all possible modulation/rate combinations to all modulations with common rates is decreased thus resulting in the reduction of the number of possible packet formats carrying the data streams. Rate prediction is made more error-resilient, in part, due to the averaging over all information rates. Furthermore, the signaling overhead of the packets is reduced. Therefore, the tradeoff between the desired transmission rate granularity on the one hand, and robustness /signaling overhead on the other hand, is controlled by adjusting the coding rate.
摘要翻译： MIMO通信系统适于以相同的可适应速率对多个数据流进行编码。因此，对具有公共速率的所有调制的所有可能的调制/速率组合的集合被减少，从而导致承载数据流的可能分组格式的数量的减少。速率预测更具有弹性，部分原因是由于所有信息速率的平均值。此外，分组的信令开销减小。因此，通过调整编码率来控制一方面期望的传输速率粒度与鲁棒性/信令开销之间的权衡。

13. 发明申请

WO2007051155A2 PILOT SYMBOL TRANSMISSION IN WIRELESS COMMUNICATION SYSTEMS 审中-公开
标题翻译：无线通信系统中的导频符号传输
公开(公告)号：WO2007051155A2
公开(公告)日：2007-05-03
申请号：PCT/US2006/060287
申请日：2006-10-26
申请人： QUALCOMM INCORPORATED , KHANDEKAR, Aamod , AGRAWAL, Avneesh , GORE, Dhananjay Ashok
发明人： KHANDEKAR, Aamod , AGRAWAL, Avneesh , GORE, Dhananjay Ashok
CPC分类号： H04J13/102 , H04B1/713 , H04L5/0026 , H04L5/0051 , H04L25/0204 , H04L25/0226 , H04L25/03866
摘要： Pilot symbols transmitted from different sectors of a same base station are multiplied with a same cell specific scrambling code and a first code having low cross correlation and second codes having low cross correlation. The second code is constant over the length of the first code, but may vary for repetitions of the first code.
摘要翻译：从相同基站的不同扇区发送的导频符号与相同的小区专用扰码和具有低互相关的第一码和具有低互相关的第二码相乘。第二个代码在第一个代码的长度上是恒定的，但是对于第一个代码的重复可能会有所不同。

14. 发明申请

WO2006124810A2 PILOT TRANSMISSION AND CHANNEL ESTIMATION WITH PILOT WEIGHTING 审中-公开
标题翻译：飞行员称重的飞行传输和通道估计
公开(公告)号：WO2006124810A2
公开(公告)日：2006-11-23
申请号：PCT/US2006/018789
申请日：2006-05-16
申请人： QUALCOMM INCORPORATED , GORE, Dhananjay Ashok , AGRAWAL, Avneesh
发明人： GORE, Dhananjay Ashok , AGRAWAL, Avneesh
IPC分类号： H04J11/00
CPC分类号： H04B1/69 , H04L5/0007 , H04L5/0048 , H04L25/0226 , H04L25/0232 , H04L27/2647
摘要： Techniques to perform channel estimation with pilot weighting are described. A receiver receives at least one transmission symbol for a pilot transmitted by a transmitter. Each transmission symbol may be generated with a single-carrier multiplexing scheme (e.g., IFDMA or LFDMA) or a multi-carrier multiplexing scheme (e.g., OFDMA). The receiver processes each received transmission symbol and obtains received pilot values. The receiver may derive an interference estimate based on the received pilot values and may estimate the reliability of the received pilot values based on the interference estimate. The receiver determines weights for the received pilot values based on the transmitted pilot values, the estimated reliability of the received pilot values, and/or other information. The receiver derives a channel estimate based on the received pilot values and the weights. The receiver then performs data detection (e.g., equalization) on received data values with the channel estimate.
摘要翻译：描述了使用导频加权来执行信道估计的技术。接收机接收由发射机发送的导频的至少一个传输符号。可以使用单载波复用方案（例如，IFDMA或LFDMA）或多载波复用方案（例如，OFDMA）生成每个传输符号。接收机处理每个接收的传输符号并获得接收到的导频值。接收机可以基于接收到的导频值导出干扰估计，并且可以基于干扰估计来估计接收到的导频值的可靠性。接收机基于发送的导频值，接收到的导频值的估计可靠性和/或其他信息来确定接收到的导频值的权重。接收器根据接收到的导频值和权重导出信道估计。然后，接收机对具有信道估计的接收数据值执行数据检测（例如，均衡）。

15. 发明申请

WO2006023705A1 UNIFIED PULSE SHAPING FOR MULTI-CARRIER AND SINGLE-CARRIER WAVEFORMS 审中-公开
标题翻译：用于多载波和单载波波形的统一脉冲形状
公开(公告)号：WO2006023705A1
公开(公告)日：2006-03-02
申请号：PCT/US2005/029506
申请日：2005-08-19
申请人： QUALCOMM INCORPORATED , GORE, Dhananjay Ashok , AGRAWAL, Avneesh , KHANDEKAR, Aamod
发明人： GORE, Dhananjay Ashok , AGRAWAL, Avneesh , KHANDEKAR, Aamod
IPC分类号： H04L27/26
CPC分类号： H04L5/0048 , H04L5/0007 , H04L5/0044 , H04L25/03834 , H04L27/0008 , H04L27/2607 , H04L27/2626 , H04L27/2647
摘要： To transmit a multi-carrier signal, a transmitter provides zero symbols for guard subbands, performs OFDM modulation, and filters the resultant time-domain samples with a pulse shaping filter. To transmit a single-carrier signal, the transmitter partitions the single-carrier signal into segments. Each segment contains up to K samples and is padded, if needed, to the length of an OFDM symbol. Each padded segment is transformed from the time domain to the frequency domain to generate a corresponding frequency-domain segment with K symbols. For each frequency-domain segment, the symbols corresponding to the guard subbands are set to zero. Each frequency-domain segment is then transformed from the frequency domain to the time domain to generate a corresponding time-domain segment. A cyclic prefix may or may not be appended to each time-domain segment. Each time-domain segment is filtered with the same pulse shaping filter to generate an output waveform for the single-carrier signal.
摘要翻译：为了发送多载波信号，发射机为保护子带提供零符号，执行OFDM调制，并用脉冲整形滤波器对合成的时域采样进行滤波。为了发送单载波信号，发射机将单载波信号分割成段。每个段包含多达K个样本，并且如果需要，则填充到OFDM符号的长度。每个填充段从时域变换到频域，以产生具有K个符号的对应的频域段。对于每个频域段，对应于保护子带的符号被设置为零。然后将每个频域段从频域变换到时域以产生对应的时域段。循环前缀可以附加到每个时域段，也可以不附加到每个时域段。每个时域分段用相同的脉冲整形滤波器滤波，以产生单载波信号的输出波形。

16. 发明申请

WO2006019708A1 PILOT TRANSMISSION AND CHANNEL ESTIMATION FOR MULTIPLE TRANSMITTERS 审中-公开
标题翻译：多台发射机的导频传输和信道估计
公开(公告)号：WO2006019708A1
公开(公告)日：2006-02-23
申请号：PCT/US2005/024612
申请日：2005-07-11
申请人： QUALCOMM INCORPORATED , GORE, Dhananjay Ashok , AGRAWAL, Avneesh , KADOUS, Tamer
发明人： GORE, Dhananjay Ashok , AGRAWAL, Avneesh , KADOUS, Tamer
IPC分类号： H04L25/02
CPC分类号： H04L25/0204 , H04L25/0212 , H04L25/0226 , H04L27/261
摘要： Each transmitter is assigned a time-only pilot code, a frequency-only pilot code, or a time-frequency pilot code to use for pilot transmission. The pilot codes may be pseudo-random, orthogonal, and/or cyclic-shift codes. To obtain a channel estimate for a transmitter using a time-frequency pilot code composed of a time-only code and a frequency-only code, a receiver multiplies a set of received symbols for each symbol period with a set of code values for the frequency-only code to obtain a set of detected symbols and performs an IDFT on the set of detected symbols to obtain an initial impulse response estimate. The receiver performs code matching on multiple initial impulse response estimates derived for multiple symbol periods with the time-only code to obtain a final impulse response estimate for the desired transmitter. The receiver retains the first L channel taps and zeroes out remaining channel taps, where L is the expected channel length.
摘要翻译：为每个发射机分配一个仅时间导频码，仅频率导频码或用于导频传输的时频导频码。导频码可以是伪随机，正交和/或循环移位码。为了使用由时间唯一码和仅频率码构成的时频导频码来获得用于发射机的信道估计，接收机将用于每个符号周期的一组接收符号与频率的一组码值相乘 - 获得一组检测符号的代码，并对检测符号集合执行IDFT以获得初始脉冲响应估计。接收机对具有多个符号周期的多个初始脉冲响应估计执行码匹配，其中仅使用时间码来获得所需发射机的最终脉冲响应估计。接收器保留第一个L个通道抽头，并将剩余的通道抽头置零，其中L是预期的通道长度。

17. 发明申请

WO2005074155A1 INTERFERENCE ESTIMATION IN A WIRELESS COMMUNICATION SYSTEM 审中-公开
标题翻译：无线通信系统干扰估计
公开(公告)号：WO2005074155A1
公开(公告)日：2005-08-11
申请号：PCT/US2005/002308
申请日：2005-01-24
申请人： QUALCOMM Incorporated , GORE, Dhananjay Ashok , AGRAWAL, Avneesh , KEERTHI, Arvind Vijay
发明人： GORE, Dhananjay Ashok , AGRAWAL, Avneesh , KEERTHI, Arvind Vijay
IPC分类号： H04B1/713
CPC分类号： H04B1/7143 , H04B1/715 , H04B2001/7154 , H04L5/023 , H04W52/38 , H04W52/42 , H04W52/44
摘要： Interference may be controlled by selectively blanking or attenuating transmit powers. A method of estimating interference caused by a transmitting entity in a wireless communication system comprises determining a desired level of accuracy in an interference estimate, determining a required number of blanks per subband set to achieve the desired level of accuracy, inserting the required number of blanks per subband set into a frequency hopping (FH) sequence, and transmitting according to the FH sequence.
摘要翻译：可以通过选择性地消隐或衰减发射功率来控制干扰。一种在无线通信系统中估计由发射实体引起的干扰的方法包括：确定干扰估计中所需的准确度水平，确定每个子带集所需的空白数以达到期望的准确度，插入所需数量的空白每个子带设置成跳频（FH）序列，并根据FH序列进行发送。

18. 发明申请

WO2008106601A1 UPLINK SCHEDULING FOR FAIRNESS IN CHANNEL ESTIMATION PERFORMANCE 审中-公开
标题翻译：通道估计性能公平的上网表调度
公开(公告)号：WO2008106601A1
公开(公告)日：2008-09-04
申请号：PCT/US2008/055327
申请日：2008-02-28
申请人： QUALCOMM Incorporated , GORE, Dhananjay Ashok , GOROKHOV, Alexei , PALANKI, Ravi , BUDIANU Petru Cristian
发明人： GORE, Dhananjay Ashok , GOROKHOV, Alexei , PALANKI, Ravi , BUDIANU Petru Cristian
IPC分类号： H04Q7/36
CPC分类号： H04W72/1231 , H04W72/1268
摘要： Systems and methodologies are described that facilitate mitigation of interference through uplink scheduling in a wireless communication environment. Access points can assign multiple terminals to a single tile or segment of shared resource (e.g., a time frequency region) to maximize the number of terminals supported. However, combinations of certain types of terminals can cause a significant increase in interference. In particular, allocating multiple terminals having a relatively high velocity (e.g., terminals located in moving vehicles) to a single tile can cause an unacceptable increase in interference. To mitigate interference, high velocity terminals can be identified. Once identified, terminals can be allocated to the available tiles based at least in part upon avoiding combinations that result in a significant increase in interference.
摘要翻译：描述了通过无线通信环境中的上行链路调度促进减轻干扰的系统和方法。接入点可以将多个终端分配给单个瓦片或共享资源段（例如，时间频率区域），以最大化所支持的终端的数量。然而，某些类型的终端的组合可能导致干扰的显着增加。特别地，将具有较高速度的多个终端（例如，位于移动车辆中的终端）分配到单个瓦片可能导致不可接受的干扰增加。为了减轻干扰，可以确定高速终端。一旦被识别，终端可以至少部分地基于避免导致干扰显着增加的组合而被分配给可用的瓦片。

19. 发明申请

WO2007014345A1 CHANNEL AND INTERFERENCE ESTIMATION WITH DEDICATED PILOTS IN OFDMA SYSTEMS 审中-公开
标题翻译： OFDMA系统中具有专用PILOTS的通道和干扰估计
公开(公告)号：WO2007014345A1
公开(公告)日：2007-02-01
申请号：PCT/US2006/029521
申请日：2006-07-26
申请人： QUALCOMM Incorporated , BUDIANU, Cristian Petru , GORE, Dhananjay Ashok , GOROKHOV, Alexei
发明人： BUDIANU, Cristian Petru , GORE, Dhananjay Ashok , GOROKHOV, Alexei
IPC分类号： H04L25/02
CPC分类号： H04L25/023 , H04B17/345 , H04L5/0007 , H04L5/0016 , H04L5/0032 , H04L5/0051 , H04L25/0204 , H04L25/021 , H04L25/0224 , H04L25/0248 , H04L25/03866 , H04L27/2647
摘要： Estimation of channel characteristics and interference level in a time-varying multi-carrier multi-user systems is carried out concurrently. To perform the estimation, a multitude of data symbols and dedicated pilot symbols are transmitted over the channel. The estimate of the interference level is used to estimate the channel parameters.
摘要翻译：并行执行时变多载波多用户系统中的信道特性和干扰电平的估计。为了执行估计，通过信道发送多个数据符号和专用导频符号。干扰电平的估计用于估计信道参数。

20. 发明申请

WO2006102639A1 SYSTEMS AND METHODS FOR BEAMFORMING FEEDBACK IN MULTI ANTENNA COMMUNICATION SYSTEMS 审中-公开
标题翻译：在多天线通信系统中建立反馈的系统和方法
公开(公告)号：WO2006102639A1
公开(公告)日：2006-09-28
申请号：PCT/US2006/010962
申请日：2006-03-24
申请人： QUALCOMM INCORPORATED , SAMPATH, Hemanth , KHANDEKAR, Aamod , GORE, Dhananjay Ashok , GOROKHOV, Alexei , KADOUS, Tamer
发明人： SAMPATH, Hemanth , KHANDEKAR, Aamod , GORE, Dhananjay Ashok , GOROKHOV, Alexei , KADOUS, Tamer
IPC分类号： H04B7/06
CPC分类号： H04B7/0634 , H04B7/0417 , H04B7/0617 , H04B7/063 , H04B7/0632 , H04B7/0639 , H04B7/0645
摘要： Methods and apparatuses are disclosed that determine whether to feedback, and the amount of feedback, with respect to eigenbeam information based upon channel resources. Additionally, methods and apparatuses are disclosed that determine whether to feedback, and the amount of feedback, with respect to eigenbeam information based upon channel information and changes in channel information.
摘要翻译：公开了基于信道资源来确定是否反馈和相对于本征光束信息的反馈量的方法和装置。此外，公开了基于频道信息和频道信息的改变来确定是否反馈和相对于特征波束信息的反馈量的方法和装置。

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