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公开(公告)号：US20100029213A1
公开(公告)日：2010-02-04
申请号：US12533495
申请日：2009-07-31
Applicant: Michael M. Wang
Inventor： Michael M. Wang
IPC: H04B15/00
CPC classification number: H04W48/20 , H04B1/71072 , H04B2201/70701 , H04B2201/70702 , H04L25/0228 , H04L25/03006
Abstract: 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.
Abstract translation: 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。
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2.发明授权Method and apparatus for selecting a modulation and coding scheme in a wireless communication system 有权用于在无线通信系统中选择调制和编码方案的方法和装置公开(公告)号：US07058039B2
公开(公告)日：2006-06-06
申请号：US10812477
申请日：2004-03-30
Applicant: Michael M. Wang , Hao Bi , Tyler A. Brown
Inventor： Michael M. Wang , Hao Bi , Tyler A. Brown
IPC: H04B7/216
CPC classification number: H04L1/0009 , H04L1/0003 , H04W72/1257
Abstract: In a wireless communication system, a scheduler (100) determines (306) a first set of modulation and coding schemes (MCSs), each of which produces a maximum data rate for a first user, in accordance with available resource constraints (304) of the wireless communication system. The scheduler then forms, for each MCS of the first set, a second set of MCSs that produces the maximum data rate for a second user in accordance with a first residual resource (314) that remains when applying that MCS to the first user, thereby producing (316) a group of second sets of MCSs. After producing the group of second sets, the scheduler selects (324), from the first set and for the first user, a first optimal MCS corresponding to one of the group of second sets that allows a highest maximum data rate for the second user.
Abstract translation: 在无线通信系统中，调度器（100）根据可用的资源约束（304）确定（306）第一组调制和编码方案（MCS），其中每个调制和编码方案（MCS）为第一用户产生最大数据速率 无线通信系统。 调度器然后为第一组的每个MCS形成第二组MCS，其根据在将该MCS应用于第一用户时保留的第一剩余资源（314）产生第二用户的最大数据速率，由此 产生（316）一组第二组MCS。 在产生第二组的组之后，调度器从第一组和第一用户中选择对应于允许第二用户的最大最大数据速率的第二组中的一组的第一最佳MCS（324）。
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3.发明授权公开(公告)号：US06683903B1
公开(公告)日：2004-01-27
申请号：US09559788
申请日：2000-04-27
Applicant: Michael M. Wang
Inventor： Michael M. Wang
IPC: H04B169
CPC classification number: H04B1/7075 , H04W56/0035
Abstract: A sub-Walsh element generator (30) partitions incoming Walsh codes into sub-elements (201-212). A sub-element generator (30) determines if a pair of Walsh sub-elements (201-212) exist at a boundary (401) between Walsh codes (101-102), and if so, the pair of sub-elements is output to a phase difference operator (40). The phase difference operator (40) determines a change in phase between the two consecutive sub-elements that exist at the Walsh code boundaries. The phase difference metric (45) is further accumulated over a predetermined period of time and is utilized to adjust a front-end frequency of a receiver.
Abstract translation: 子沃尔什元素生成器（30）将进入的沃尔什码分成子元素（201-212）。 子元素生成器（30）确定在沃尔什码（101-102）之间的边界（401）是否存在一对沃尔什子元素（201-212），如果是，则输出该对子元素 到相位差运算器（40）。 相位差运算符（40）确定存在于沃尔什码边界的两个连续子元件之间的相位变化。 相位差度量（45）在预定时间段内进一步累加，并用于调整接收机的前端频率。
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公开(公告)号：US20100074344A1
公开(公告)日：2010-03-25
申请号：US12564801
申请日：2009-09-22
Applicant: Michael M. Wang , Ravi Palanki
Inventor： Michael M. Wang , Ravi Palanki
CPC classification number: H04W64/00 , H04L5/0048 , H04W8/26 , H04W24/00
Abstract: 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.
Abstract translation: 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。
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5.发明授权Method and apparatus for encoding rate determination in a communication system 失效用于在通信系统中编码速率确定的方法和装置
公开(公告)号：US5974079A
公开(公告)日：1999-10-26
申请号：US013421
申请日：1998-01-26
Applicant: Michael M. Wang , Tyler Brown , William Morgan
Inventor： Michael M. Wang , Tyler Brown , William Morgan
CPC classification number: H04B1/707 , H04B7/264 , H04L1/0046 , H04L1/0054
Abstract: A method and apparatus of determining an encoding rate associated with a received signal (12), where the method including the steps of demodulating in a demodulator (80) to produce a series of metrics (22) representing energies of a series of data symbols carried by received signal (12); decoding in a decoder (20) series of metrics (22) to produce a set of total metrics (TM) (90) corresponding to a set of possible encoding rates; normalizing in a TM normalizer (28) set of TM (90) to produce a corresponding set of normalized TM (23); and determining the encoding rate in a rate determination (24) based on set of normalized TM (23). The normalizing step in TM normalizer (28) includes multiplying a set of effective finger counts (19) by a constant (410) to generate a corresponding set of numbers (420); and subtracting numbers (420) from associating TM (90) to produce normalized TM (23).
Abstract translation: 一种确定与接收信号（12）相关联的编码速率的方法和装置，其中所述方法包括以下步骤：在解调器（80）中解调以产生表示一系列携带的数据符号的能量的一系列度量（22） 通过接收信号（12）; 在解码器（20）系列度量（22）中解码以产生对应于一组可能的编码率的总体度量（TM）集合（90）; 在TM规范化器（28）集合TM（90）中归一化以产生相应的一组归一化TM（23）; 以及基于归一化TM（23）的集合来确定速率确定（24）中的编码率。 TM规范化器（28）中的归一化步骤包括将一组有效手指计数（19）乘以常数（410）以产生相应的一组数字（420）; 以及从关联TM（90）中减去数字（420）以产生归一化TM（23）。
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Patent Agency Ranking6.发明授权
公开(公告)号：US5881093A
公开(公告)日：1999-03-09
申请号：US798577
申请日：1997-02-10
Applicant: Michael M. Wang , Fuyun Ling
Inventor： Michael M. Wang , Fuyun Ling
CPC classification number: H04L1/0059 , H03M13/271 , H04L1/0071 , H04L1/08
Abstract: A block interleaver (212) suitable for communication over fading channels with convolutionally coded signals as input is disclosed. The block interleaver (212) implements multiple interleaving distances which are matched to the particular convolutional code to provide better performance than conventional block interleavers.
Abstract translation: 公开了一种适于在具有卷积编码信号作为输入的衰落信道上进行通信的块交织器（212）。 块交织器（212）实现与特定卷积码匹配的多个交织距离，以提供比常规块交织器更好的性能。
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公开(公告)号：US5878098A
公开(公告)日：1999-03-02
申请号：US672155
申请日：1996-06-27
Applicant: Michael M. Wang , Fuyun Ling , Terry M. Schaffner
Inventor： Michael M. Wang , Fuyun Ling , Terry M. Schaffner
CPC classification number: H04L1/0054 , H03M13/3961 , H03M13/41 , H04L1/0046 , H04B2201/70705
Abstract: A method of determining a rate associated with a received signal including the steps of detecting the received signal (40); decoding the received signal at a first rate, determining a first path metric associated with the first rate, decoding the received signal at a second rate, and determining a second path metric associated with the second rate (44); calculating a plurality of discriminant functions based on the first and second path metrics (46); comparing at least one of the plurality of discriminant functions to a first predetermined value (48); and selecting one of the first and second rates as a determined rate based on the comparison.
Abstract translation: 一种确定与接收信号相关联的速率的方法，包括检测接收信号的步骤; 以第一速率对接收到的信号进行解码，确定与第一速率相关联的第一路径度量，以第二速率解码接收到的信号，以及确定与第二速率相关联的第二路径度量（44）。 基于所述第一和第二路径量度（46）计算多个判别函数; 将所述多个判别函数中的至少一个与第一预定值（48）进行比较; 并且基于所述比较来选择所述第一和第二速率中的一个作为确定的速率。
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公开(公告)号：US20100029262A1
公开(公告)日：2010-02-04
申请号：US12487580
申请日：2009-06-18
Applicant: Michael M. Wang , Ravi Palanki , Naga Bhushan
Inventor： Michael M. Wang , Ravi Palanki , Naga Bhushan
CPC classification number: H04W48/16 , H04B1/7107 , H04J11/004 , H04J11/0093 , H04W64/003
Abstract: 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.
Abstract translation: 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。
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公开(公告)号：US09277487B2
公开(公告)日：2016-03-01
申请号：US12487580
申请日：2009-06-18
Applicant: Michael M. Wang , Ravi Palanki , Naga Bhushan
Inventor： Michael M. Wang , Ravi Palanki , Naga Bhushan
CPC classification number: H04W48/16 , H04B1/7107 , H04J11/004 , H04J11/0093 , H04W64/003
Abstract: 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.
Abstract translation: 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。
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公开(公告)号：US07573964B2
公开(公告)日：2009-08-11
申请号：US11014617
申请日：2004-12-16
Applicant: Michael M. Wang , Rajeev Agrawal , Xiangyang Chen , Ajoy K. Singh , Tyler A. Brown
Inventor： Michael M. Wang , Rajeev Agrawal , Xiangyang Chen , Ajoy K. Singh , Tyler A. Brown
IPC: H04B1/10
CPC classification number: H04L25/0202 , H04B1/712 , H04B2201/70701 , H04L25/0222
Abstract: 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.
Abstract translation: 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。
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