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1. 发明申请

WO2007014175A1 SDMA FOR WCDMA WITH INCREASED CAPACITY BY USE OF MULTIPLE SCRAMBLING CODES 审中-公开
标题翻译：通过使用多个SCRAMBLING代码提高容量的WCDMA的SDMA
公开(公告)号：WO2007014175A1
公开(公告)日：2007-02-01
申请号：PCT/US2006/028730
申请日：2006-07-24
申请人： QUALCOMM INCORPORATED , SAMBHWANI, Sharad Deepak , GORE, Dhananjay Ashok , AGRAWAL, Avneesh , SUTIVONG, Arak , GOROKHOV, Alexei
发明人： SAMBHWANI, Sharad Deepak , GORE, Dhananjay Ashok , AGRAWAL, Avneesh , SUTIVONG, Arak , GOROKHOV, Alexei
IPC分类号： H04J13/00 , H04J11/00
CPC分类号： H04J13/0048 , H04J13/18
摘要： Systems and methodologies are described that facilitate increasing system capacity in a code-limited WCDMA (e.g., TDD, FDD, …) wireless communication environment. According to one aspect, a larger code space can be defined by introducing multiple code clusters within a sector, wherein each cluster has a unique scrambling code. Codes within a cluster can have orthogonal Walsh sequences that can be assigned to user devices to facilitate communicating over a wireless network and can overlap with codes in another cluster. The unique scrambling code assigned to each cluster can ensure that duplicate Walsh sequences in another cluster in the same sector appear as a pseudo-noise codes.
摘要翻译：描述了有助于在限制码的WCDMA（例如，TDD，FDD））无线通信环境中增加系统容量的系统和方法。根据一个方面，可以通过在扇区内引入多个码集来定义更大的码空间，其中每个群集具有唯一的扰码。群集内的代码可以具有可被分配给用户设备的正交沃尔什序列，以便于通过无线网络进行通信并且可以与另一个群集中的代码重叠。分配给每个簇的唯一扰码可以确保同一扇区中另一个簇中的重复沃尔什序列显示为伪噪声码。

2. 发明申请

WO2006099545A1 POWER CONTROL BASED ON AN OVERLAPPING FACTOR IN A QUASI-ORTHOGONAL OFDM SYSTEM 审中-公开
标题翻译：基于正交正交OFDM系统中的重叠因子的功率控制
公开(公告)号：WO2006099545A1
公开(公告)日：2006-09-21
申请号：PCT/US2006/009548
申请日：2006-03-15
申请人： QUALCOMM INCORPORATED , MESE, Murat , NAGUIB, Ayman Fawzy , SUTIVONG, Arak , GORE, Dhananjay Ashok , GOROKHOV, Alexei , JI, Tingfang
发明人： MESE, Murat , NAGUIB, Ayman Fawzy , SUTIVONG, Arak , GORE, Dhananjay Ashok , GOROKHOV, Alexei , JI, Tingfang
IPC分类号： H04B7/005
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和准正交系统中的重叠量的技术。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。

3. 发明申请

WO2006135518A2 LOW COMPLEXITY BEAMFORMING FOR MULTIPLE ANTENNA SYSTEMS 审中-公开
标题翻译：用于多个天线系统的低复杂度波束
公开(公告)号：WO2006135518A2
公开(公告)日：2006-12-21
申请号：PCT/US2006/018357
申请日：2006-05-12
申请人： QUALCOMM INCORPORATED , JI, Tingfang , NAGUIB, Ayman Fawzy , SUTIVONG, Arak , GORE, Dhananjay Ashok , GOROKHOV, Alexei , SAMPATH, Hemanth , DONG, Min
发明人： JI, Tingfang , NAGUIB, Ayman Fawzy , SUTIVONG, Arak , GORE, Dhananjay Ashok , GOROKHOV, Alexei , SAMPATH, Hemanth , DONG, Min
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.
摘要翻译：公开了利用时域响应的离散傅立叶变换来生成用于无线通信的波束成形权重的方法和装置。此外，在一些实施例中，构成小于分配给用户通信的所有频率副载波的频率副载波可用于产生波束形成权重。

4. 发明申请

WO2006102077A1 PILOT SIGNAL TRANSMISSION FOR AN ORTHOGONAL FREQUENCY DIVISION WIRELESS COMMUNICATION SYSTEM 审中-公开
标题翻译：正交频分区无线通信系统的试点信号传输
公开(公告)号：WO2006102077A1
公开(公告)日：2006-09-28
申请号：PCT/US2006/009707
申请日：2006-03-17
申请人： QUALCOMM INCORPORATED , GOROKHOV, Alexei , NAGUIB, Ayman Fawzy , SUTIVONG, Arak , GORE, Dhananjay Ashok , JI, Tingfang
发明人： GOROKHOV, Alexei , NAGUIB, Ayman Fawzy , SUTIVONG, Arak , GORE, Dhananjay Ashok , JI, Tingfang
IPC分类号： H04L27/26
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.
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。

5. 发明申请

WO2006125150A3 SOFTER AND SOFT HANDOFF IN AN ORTHOGONAL FREQUENCY DIVISION WIRELESS COMMUNICATION SYSTEM 审中-公开
公开(公告)号：WO2006125150A3
公开(公告)日：2006-11-23
申请号：PCT/US2006/019434
申请日：2006-05-17
申请人： QUALCOMM INCORPORATED , SUTIVONG, Arak , NAGUIB, Ayman Fawzy , GORE, Dhananjay Ashok , GOROKHOV, Alexei , JI, Tingfang
发明人： SUTIVONG, Arak , NAGUIB, Ayman Fawzy , GORE, Dhananjay Ashok , GOROKHOV, Alexei , JI, Tingfang
IPC分类号： H04Q7/20
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.

6. 发明申请

WO2010059650A1 PILOT SIGNAL TRANSMISSION PATTERN FOR A MULTI -USER OFDMA SYSTEM 审中-公开
标题翻译：用于多个OFDMA系统的引导信号传输模式
公开(公告)号：WO2010059650A1
公开(公告)日：2010-05-27
申请号：PCT/US2009/064871
申请日：2009-11-17
申请人： QUALCOMM INCORPORATED , GOROKHOV, Alexei Y. , NAGUIB, Ayman Fawzy , SUTIVONG, Arak , GORE, Dhananjay Ashok , JI, Tingfang
发明人： GOROKHOV, Alexei Y. , NAGUIB, Ayman Fawzy , SUTIVONG, Arak , GORE, Dhananjay Ashok , JI, Tingfang
IPC分类号： H04L5/02 , H04B1/713 , H04L25/02 , H04L27/26 , H04L5/00
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, wherein the pilot symbols are organized in clusters, each cluster can have a different pattern and comprising pilot symbols located close to the edges of a hop region. In addition, scalar functions can be applied to the pilot symbols for obtaining orthogonality between sets of pilot symbols within the same cluster and/or different clusters.
摘要翻译：提供从移动站或基站发送的导频符号的传输模式，其中导频符号被组织成簇，每个簇可以具有不同的模式，并且包括位于跳跃区域的边缘附近的导频符号。此外，可以将标量函数应用于导频符号，以获得在相同簇和/或不同簇内的导频符号集合之间的正交性。

7. 发明申请

WO2006138554A2 USER SEPARATION IN SPACE DIVISION MULTIPLE ACCESS FOR A MULTI-CARRIER COMMUNICATION SYSTEM 审中-公开
标题翻译：用于多载波通信系统的空间分多址接入用户分离
公开(公告)号：WO2006138554A2
公开(公告)日：2006-12-28
申请号：PCT/US2006/023481
申请日：2006-06-16
申请人： QUALCOMM INCORPORATED , DONG, Min , JI, Tingfang , GORE, Dhananjay Ashok , GOROKHOV, Alexei , SUTIVONG, Arak
发明人： DONG, Min , JI, Tingfang , GORE, Dhananjay Ashok , GOROKHOV, Alexei , SUTIVONG, Arak
IPC分类号： H04Q7/36 , H04B7/04 , H04Q7/38
CPC分类号： H04B7/0617 , H04B7/0452 , H04W16/04 , H04W16/28
摘要： Apparatuses and methodologies are described that increase system capacity in a multi-access wireless communication system. Spatial dimensions may be utilized to distinguish between multiple signals utilizing the same channel and thereby increase system capacity. Signals may be separated by applying beamforming weights based upon the spatial signature of the user device-base station pair. Grouping spatially orthogonal or disparate user devices on the same channel facilitates separation of signals and maximization of user device throughput performance. User devices may be reassigned to groups periodically or based upon changes in the spatial relationships between the user devices and the base station.
摘要翻译：描述了在多址无线通信系统中增加系统容量的装置和方法。可利用空间维度来区分使用相同信道的多个信号，从而增加系统容量。可以基于用户设备 - 基站对的空间签名应用波束成形权重来分离信号。在相同信道上对空间正交或不同用户设备进行分组有助于信号分离和用户设备吞吐量性能的最大化。用户设备可以周期性地或基于用户设备和基站之间的空间关系的改变重新分配给组。

8. 发明申请

WO2006096763A1 RATE SELECTION FOR A QUASI-ORTHOGONAL COMMUNICATION SYSTEM 审中-公开
标题翻译：一种正交正交通信系统的速率选择
公开(公告)号：WO2006096763A1
公开(公告)日：2006-09-14
申请号：PCT/US2006/008221
申请日：2006-03-07
申请人： QUALCOMM INCORPORATED , NAGUIB, Ayman Fawzy , GOROKHOV, Alexei , JI, Tingfang , GORE, Dhananjay Ashok , SUTIVONG, Arak
发明人： NAGUIB, Ayman Fawzy , GOROKHOV, Alexei , JI, Tingfang , GORE, Dhananjay Ashok , SUTIVONG, Arak
IPC分类号： H04L1/00 , H04L1/20
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。

9. 发明申请

WO2006019709A1 FREQUENCY DOMAIN FILTERING TO IMPROVE CHANNEL ESTIMATION IN MULTICARRIER SYSTEMS 审中-公开
标题翻译：频域滤波以提高多媒体系统中的信道估计
公开(公告)号：WO2006019709A1
公开(公告)日：2006-02-23
申请号：PCT/US2005/024613
申请日：2005-07-11
申请人： QUALCOMM INCORPORATED , GORE, Dhananjay Ashok , AGRAWAL, Avneesh , KHANDEKAR, Aamod , GOROKHOV, Alexei
发明人： GORE, Dhananjay Ashok , AGRAWAL, Avneesh , KHANDEKAR, Aamod , GOROKHOV, Alexei
IPC分类号： H04L27/26
CPC分类号： H04L27/2647 , H04L5/0007 , H04L5/0048 , H04L5/006 , H04L25/022 , H04L25/0226 , H04L25/023
摘要： A channel estimation system comprises a filtering component that selectively scales a plurality of carriers as a function of location of the plurality of carriers within a frequency band, wherein the plurality of carriers comprises at least one data carrier and at least one pilot carrier. A component thereafter extrapolates an observation from the at least one pilot carrier, wherein a channel is estimated as a function of the extrapolated observation. The scaling of the carriers facilitates reducing a flooring effect associated with channel estimation. The filtering component can be employed at a transmitter and/or at a receiver, and can be activated and/or deactivated as a function of a sensed data packet type.
摘要翻译：信道估计系统包括滤波部件，其选择性地按照频带内的多个载波的位置来缩放多个载波，其中多个载波包括至少一个数据载波和至少一个导频载波。然后，组件从至少一个导频载波外推观测，其中，估计信道作为外推观测的函数。载波的缩放有助于减少与信道估计相关的地板效应。滤波组件可以在发射机和/或接收机处采用，并且可以作为感测数据分组类型的功能被激活和/或去激活。

10. 发明申请

WO2006010159A1 ITERATIVE CHANNEL AND INTERFERENCE ESTIMATION WITH DEDICATED PILOT TONES FOR OFDMA 审中-公开
标题翻译：用于OFDMA的专用通道和干扰估计
公开(公告)号：WO2006010159A1
公开(公告)日：2006-01-26
申请号：PCT/US2005/025609
申请日：2005-07-18
申请人： QUALCOMM INCORPORATED , GOROKHOV, Alexei , AGRAWAL, Avneesh , GORE, Dhananjay Ashok
发明人： GOROKHOV, Alexei , AGRAWAL, Avneesh , GORE, Dhananjay Ashok
IPC分类号： H04L25/02
CPC分类号： H04L25/0236 , H04L5/0007 , H04L5/0048 , H04L5/023 , H04L25/0248 , 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. Next, an initial estimate value is selected for the interference level. The initial estimate value for the interference level is used together with the received pilot symbols to provide a first estimate of the channel. The first estimate of the channel is used to determine a new updated value for the interference level, which in turn, is used to update the value of the first estimate of the channel iteratively. The iterations continue until the iteratively updated values of the interference level and channel satisfy predefined limits. The data symbols and the final updated value of the channel are subsequently used to proviEstimation 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. Next, an initial estimate value is selected for the interference level. The initial estimate value for the interference level is used together with the received pilot symbols to provide a first estimate of the channel. The first estimate of the channel is used to determine a new updated value for the interference level, which in turn, is used to update the value of the first estimate of the channel iteratively. The iterations continue until the iteratively updated values of the interference level and channel satisfy predefined limits. The data symbols and the final updated value of the channel are subsequently used to provide a second estimate for the channel. A MMSE approach is followed where channel estimates and noise variance in an OFDM system are iteratively updted.
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。接下来，针对干扰电平选择初始估计值。干扰电平的初始估计值与接收到的导频符号一起使用以提供信道的第一估计。信道的第一估计用于确定用于干扰电平的新的更新值，其又用于迭代地更新信道的第一估计值。迭代继续，直到干扰电平和通道的迭代更新值满足预定义的限制。数据符号和信道的最终更新值随后用于提供信道特性，同时执行时变多载波多用户系统中的干扰电平。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。接下来，针对干扰电平选择初始估计值。干扰电平的初始估计值与接收到的导频符号一起使用以提供信道的第一估计。信道的第一估计用于确定用于干扰电平的新的更新值，其又用于迭代地更新信道的第一估计值。迭代继续，直到干扰电平和通道的迭代更新值满足预定义的限制。随后使用数据符号和信道的最终更新值来提供信道的第二估计。遵循MMSE方法，其中OFDM系统中的信道估计和噪声方差被迭代地更新。

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