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1. 发明授权

US09277487B2 Cell detection with interference cancellation 有权
标题翻译：具有干扰消除的小区检测
公开(公告)号：US09277487B2
公开(公告)日：2016-03-01
申请号：US12487580
申请日：2009-06-18
申请人： Michael M. Wang , Ravi Palanki , Naga Bhushan
发明人： Michael M. Wang , Ravi Palanki , Naga Bhushan
IPC分类号： H04W4/00 , H04W48/16 , H04B1/7107 , H04J11/00 , H04J1/14 , H04W64/00
CPC分类号： H04W48/16 , H04B1/7107 , H04J11/004 , H04J11/0093 , H04W64/003
摘要： Techniques for performing cell detection with interference cancellation are described. In an aspect, a user equipment (UE) may detect for pilots from cells in a wireless network using interference cancellation. The UE may process a received signal to detect for pilots from one or more cells. The pilots may be common pilots transmitted with a reuse factor of one or low reuse pilots transmitted with a reuse factor greater than one. The UE may estimate the interference from a detected cell (e.g., the strongest detected cell) and may cancel the estimated interference from the received signal. The UE may then process the interference-canceled signal to detect for pilots from additional cells. The UE may be able to detect pilots from more cells, e.g., from weaker cells, by canceling the interference due to the pilots from the detected cells. This may be desirable for various applications such as positioning.
摘要翻译：描述用于执行具有干扰消除的小区检测的技术。在一方面，用户设备（UE）可以使用干扰消除来检测来自无线网络中的小区的导频。 UE可以处理接收的信号以检测来自一个或多个小区的导频。导频可以是以重用因子大于1的一个或多个重用导频的重用因子发送的公共导频。 UE可以估计来自检测到的小区（例如，最强检测小区）的干扰，并且可以从接收到的信号中消除所估计的干扰。然后，UE可以处理干扰消除信号，以检测来自其他小区的导频。 UE可能能够通过消除由于来自检测到的小区的导频引起的干扰来检测来自较弱小区的更多小区的导频。这对于诸如定位的各种应用可能是期望的。

2. 发明授权

US07573964B2 Channel estimator with extended channel bandwidth 有权
标题翻译：具有扩展信道带宽的信道估计器
公开(公告)号：US07573964B2
公开(公告)日：2009-08-11
申请号：US11014617
申请日：2004-12-16
申请人： Michael M. Wang , Rajeev Agrawal , Xiangyang Chen , Ajoy K. Singh , Tyler A. Brown
发明人： Michael M. Wang , Rajeev Agrawal , Xiangyang Chen , Ajoy K. Singh , Tyler A. Brown
IPC分类号： H04B1/10
CPC分类号： H04L25/0202 , H04B1/712 , H04B2201/70701 , H04L25/0222
摘要： A method (1700) and apparatus (1801) provide channel estimation with extended bandwidth filters. Antenna (1813) receives a signal such as a pilot signal and detects a bandwidth associated with the pilot signal in a detector (320). One of a plurality of filters (603, 605, 607, and 609) including extended bandwidth filters (311) and a default filter (305) can be selected by a selector (617). If the detector detects activity associated with a wider bandwidth, the filter associated with the wider bandwidth is selected over the presently selected filter. If no activity is detected, the default filter is selected.
摘要翻译：一种方法（1700）和装置（1801）提供具有扩展带宽滤波器的信道估计。天线（1813）接收诸如导频信号的信号，并且在检测器（320）中检测与导频信号相关联的带宽。选择器（617）可以选择包括扩展带宽滤波器（311）和默认滤波器（305）的多个滤波器（603,605,607和609）之一。如果检测器检测到与更宽带宽相关的活动，则通过当前选择的滤波器选择与较宽带宽相关联的滤波器。如果没有检测到活动，则选择默认过滤器。

3. 发明授权

US07145891B2 Method and apparatus to provide desired quality-of-service levels to multiple communication services 有权
标题翻译：为多种通信服务提供所需服务质量水平的方法和装置
公开(公告)号：US07145891B2
公开(公告)日：2006-12-05
申请号：US10629408
申请日：2003-07-29
申请人： Rapeepat Ratasuk , Amitava Ghosh , Michael M. Wang , Weimin Xiao
发明人： Rapeepat Ratasuk , Amitava Ghosh , Michael M. Wang , Weimin Xiao
IPC分类号： H04B7/216
CPC分类号： H04W52/265 , H04W52/267
摘要： Quality-of-service for different communication services that share a common physical link (such as at least one code division multiplexing code) is provided. Outer power loop control serves to maintain quality-of-service for a selected one of the communication services that has, in a preferred embodiment, a highest relative requirement for quality-of-service. Rate matching parameters are then selected independent of transmission energy factors to ensure that the remaining communication services abide by their corresponding quality-of-service requirements.
摘要翻译：提供共享通用物理链路（例如至少一个码分多路复用码）的不同通信业务的服务质量。外部电源回路控制用于维持在优选实施例中具有对服务质量的最高相对要求的所选通信服务的服务质量。然后选择速率匹配参数，独立于传输能量因子，以确保剩余的通信服务遵守其相应的服务质量要求。

4. 发明授权

US06856644B1 Method and apparatus for forward link power control bit generation in a spread-spectrum communication system 有权
标题翻译：用于扩展频谱通信系统中的前向链路功率控制位产生的方法和装置
公开(公告)号：US06856644B1
公开(公告)日：2005-02-15
申请号：US09702382
申请日：2000-10-31
申请人： Michael M. Wang , Louay A. Jalloul , Tyler Brown
发明人： Michael M. Wang , Louay A. Jalloul , Tyler Brown
IPC分类号： H04B1/7115 , H04B7/005 , H04B1/69 , H04B7/216
CPC分类号： H04W52/12 , H04B1/7115 , H04W52/24
摘要： Power control bit generation for forward link power control in a spread spectrum communication system is accomplished through modification of a set point threshold. Modification of the set point reduces the number of squaring and division mathematical operations, thus more efficiently utilizing limited system resources in a mobile receiver used in forward link power control.
摘要翻译：扩频通信系统中的前向链路功率控制的功率控制位产生通过修改设定点阈值来实现。设定点的修改减少了平均和分割数学运算的数量，从而更有效地利用了前向链路功率控制中使用的移动接收机中的有限系统资源。

5. 发明授权

US06799024B2 Method and apparatus for automatic gain control compensation in a wireless communication system 失效
标题翻译：无线通信系统中自动增益控制补偿的方法和装置
公开(公告)号：US06799024B2
公开(公告)日：2004-09-28
申请号：US10025075
申请日：2001-12-18
申请人： Michael M. Wang , Tyler Brown
发明人： Michael M. Wang , Tyler Brown
IPC分类号： H04B106
CPC分类号： H04W88/02
摘要： In a code division multiple access wireless communication system having at least one base transceiver station and at least one mobile station having a mobile station receiver assembly configured to receive a coded signal having an information-bearing signal portion and an associated interfering signal portion from the base transceiver station, a method and apparatus for automatic gain control compensation in the mobile station receiver assembly, is disclosed. The method includes causing a gain adjustment to the coded signal by an AGC circuit in the mobile station receiver assembly to produce a post-AGC signal having a post-AGC interfering signal portion with an associated post-AGC interfering signal power level, and an associated gain error value. The method further includes compensating for the gain adjustment to the coded signal if the number of receiver fingers assigned to demodulate the coded signal is less than or equal to a predetermined number.
摘要翻译：在具有至少一个基站收发器的码分多址无线通信系统和至少一个具有移动站接收机组件的移动站中，所述移动站接收机组件被配置为从基站接收具有信息承载信号部分和相关联的干扰信号部分的编码信号收发台，用于移动台接收机组件中的自动增益控制补偿的方法和装置。该方法包括通过移动站接收器组件中的AGC电路对编码信号进行增益调整，以产生具有相关联的AGC后干扰信号功率电平的具有AGC后干扰信号部分的AGC后信号，以及相关联的增益误差值。该方法还包括如果分配给解码编码信号的接收机手指的数量小于或等于预定数量，则补偿对编码信号的增益调整。

6. 发明授权

US06728304B2 Method and apparatus for performing a signal detection and assignment in a wireless communication system 有权
标题翻译：用于在无线通信系统中执行信号检测和分配的方法和装置
公开(公告)号：US06728304B2
公开(公告)日：2004-04-27
申请号：US10025056
申请日：2001-12-18
申请人： Tyler Brown , Michael M. Wang , Vagan Shakhgildian
发明人： Tyler Brown , Michael M. Wang , Vagan Shakhgildian
IPC分类号： H04B1707
CPC分类号： H04B1/7117 , H04B1/712
摘要： In a wireless communication system comprising an effective ray detector, a method for detecting and assigning a mobile station signal including receiving a plurality of search metrics, the plurality of search metrics including a plurality of offset energy values at corresponding time offsets, sorting the plurality of search metrics in order of their offset energy values, calculating a plurality of decoding success predictors, and selecting the decoding success predictor having the maximum value. The method also includes forwarding an acknowledgment message declaring signal detection to the mobile station if the maximum decoding success predictor has a value greater than zero. The method further includes assigning receiver demodulation at the time offsets associated with the maximum decoding success predictor if the maximum decoding success predictor has a value greater than zero.
摘要翻译：在包括有效射线检测器的无线通信系统中，一种用于检测和分配包括接收多个搜索度量的移动站信号的方法，所述多个搜索度量包括在相应的时间偏移处的多个偏移能量值，按照其偏移能量值的顺序搜索度量，计算多个解码成功预测器，以及选择具有最大值的解码成功预测器。如果最大解码成功预测器具有大于零的值，则该方法还包括将确认消息声明信号检测转发给移动台。该方法还包括如果最大解码成功预测器具有大于零的值，则在与最大解码成功预测器相关联的时间偏移处分配接收机解调。

7. 发明授权

US09237515B2 Successive detection and cancellation for cell pilot detection 有权
标题翻译：细胞导联检测的连续检测和取消
公开(公告)号：US09237515B2
公开(公告)日：2016-01-12
申请号：US12533495
申请日：2009-07-31
申请人： Michael M. Wang
发明人： Michael M. Wang
IPC分类号： H04W24/00 , H04W48/20 , H04B1/7107 , H04L25/02 , H04L25/03
CPC分类号： H04W48/20 , H04B1/71072 , H04B2201/70701 , H04B2201/70702 , H04L25/0228 , H04L25/03006
摘要： Techniques for performing cell detection with successive detection and cancellation (SDC) are described. For SDC, pilots from stronger cells may be canceled from a received signal at a user equipment (UE) so that weaker cells may be detected as a result of reduced interference from the stronger cells. In one design, a UE processes a received signal to detect for a cell and determines whether the detected cell is sufficiently strong. If the cell is sufficiently strong, then the UE cancels the interference due to the detected cell from the received signal and further processes an interference-canceled signal to detect for another cell. The UE may detect for cells in a set of cells in a sequential order, from the strongest cell to the weakest cell. The UE may terminate detection when a cell not sufficiently strong is detected or when all cells in the set are detected.
摘要翻译：描述了用连续检测和消除（SDC）进行小区检测的技术。对于SDC，来自较强小区的导频可以在用户设备（UE）处从接收到的信号中消除，从而可以通过来自较强小区的干扰减少来检测较弱的小区。在一种设计中，UE处理接收的信号以检测小区并确定所检测的小区是否足够强。如果小区足够强，则UE从接收到的信号中消除由于检测到的小区引起的干扰，并进一步处理干扰消除信号以检测另一小区。 UE可以按照从最强小区到最弱小区的顺序检测一组小区中的小区。当检测到不够牢固的小区时，或者当检测到该组中的所有小区时，UE可以终止检测。

8. 发明授权

US08422614B2 Methods and apparatus for determining timing in a wireless communication system 失效
公开(公告)号：US08422614B2
公开(公告)日：2013-04-16
申请号：US12579131
申请日：2009-10-14
申请人： Michael M. Wang , Bojan Vrcelj , Fuyun Ling
发明人： Michael M. Wang , Bojan Vrcelj , Fuyun Ling
IPC分类号： H04L7/00
CPC分类号： H04L27/2662 , H04L27/2676
摘要： Methods and apparatus for setting timing of sampling of one or more symbols. The disclosed methods account for at least three types of effective interference (EI) and are used to set the timing of a sampling window for sampling received symbols. The methods includes setting timing based on determining an energy density function accounting for both static and dynamic EI, determining the minimum of a total energy profile and sliding the sampling window to ensure that the minimum point is at a predetermined point, and determining and using a composite energy profile accounting for short term and long term fading effects. The disclosed apparatus include a transceiver employing one or more of the disclosed methods for setting timing when receiving the symbols.

9. 发明授权

US08391401B2 Highly detectable pilot structure 有权
标题翻译：高度可检测的导频结构
公开(公告)号：US08391401B2
公开(公告)日：2013-03-05
申请号：US12564801
申请日：2009-09-22
申请人： Michael M. Wang , Ravi Palanki
发明人： Michael M. Wang , Ravi Palanki
IPC分类号： H04L27/00
CPC分类号： H04W64/00 , H04L5/0048 , H04W8/26 , H04W24/00
摘要： Aspects describe a Highly Detectable Pilot that allows a mobile device to detect more base stations and, thus, can provide more accuracy in location estimate. A highly detectable pilot can be transmitted in one or more data symbols that are not currently being utilized for transmission of data. Transmission of the highly detectable pilot in two data symbols provide a receiver with more convergence time, however, it can take the receiver a longer amount of time to acquire an adequate number of pilots for a location estimate.
摘要翻译：方面描述了一种高度可检测的导频，允许移动设备检测更多的基站，从而可以提供更准确的位置估计。高度可检测的导频可以在当前不用于数据传输的一个或多个数据符号中发送。在两个数据符号中传输高度可检测的导频为接收机提供了更多的收敛时间，然而，它可以使接收机花更长的时间来获取足够数量的导频用于位置估计。

10. 发明申请

US20100227612A1 CELL DETECTION FOR MOBILE LOCATION WITH GROUPING DIVERSITY 审中-公开
标题翻译：用于具有分组多样性的移动位置的细胞检测
公开(公告)号：US20100227612A1
公开(公告)日：2010-09-09
申请号：US12400675
申请日：2009-03-09
申请人： Michael M. Wang , Ravi Palanki
发明人： Michael M. Wang , Ravi Palanki
IPC分类号： H04W72/04 , H04W48/20 , H04L27/28
CPC分类号： G01S11/06 , G01S5/14 , H04L5/0023 , H04L5/0048 , H04L5/0073 , H04W48/12 , H04W72/02 , H04W84/18
摘要： Systems and methodologies are described that facilitate transmitting pilot signals over resources selected based on a dynamic variable common to a wireless network. The resources can also be selected based on an identifier of a related access point to provide multiple levels of diversity in transmitting the pilot signal. Thus, a resource selected for a given access point can vary over subsequent frames and additionally vary with respect to other access points. A hash function can be utilized with the access point identifier to divide resources among access points, and using the dynamic variable, such as a frame identifier, can modify the selected resources over subsequent frames. This allows mobile devices to receive the pilot signals from access points at varying locations, for location determination in one example, with decreased interference.
摘要翻译：描述了有助于通过基于无线网络公用的动态变量选择的资源来发送导频信号的系统和方法。也可以基于相关接入点的标识符来选择资源，以在发送导频信号时提供多级分集。因此，为给定接入点选择的资源可以随后续帧变化，并且另外可以相对于其他接入点而变化。散列函数可以与接入点标识符一起使用以在接入点之间划分资源，并且使用诸如帧标识符的动态变量可以在随后的帧中修改所选择的资源。这允许移动设备在变化的位置从接入点接收导频信号，在一个示例中用于位置确定，具有减小的干扰。

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