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1. 发明授权

US09026123B2 Method and apparatus for managing uplink communication in wireless communication network 有权
标题翻译：用于管理无线通信网络中的上行链路通信的方法和装置
公开(公告)号：US09026123B2
公开(公告)日：2015-05-05
申请号：US12459912
申请日：2009-07-09
申请人： Louay Jalloul , Sriram Mudulodu , Sam P. Alex , Leena Zacharias , Bertrand Hochwald
发明人： Louay Jalloul , Sriram Mudulodu , Sam P. Alex , Leena Zacharias , Bertrand Hochwald
IPC分类号： H04W72/00 , H04L1/00 , H04W24/00 , H04W28/18
CPC分类号： H04W72/085 , H04L1/0003 , H04L1/0009 , H04L1/0015 , H04L1/0021 , H04W24/00 , H04W28/18
摘要： A method for managing uplink communication in wireless communication network is provided. The method includes selecting one or more Mobile Stations (MSs) from a plurality of MSs based on a first signal parameter corresponding to each MS of the one or more MSs, one or more second signal parameters corresponding to each MS of the one or more MSs, and one or more threshold parameters. The first signal parameter is associated with a Base Station (BS) serving a MS. Further, the one or more second signal parameters are associated with one or more BSs neighboring to the MS. The one or more threshold parameters are associated with a communication parameter. Thereafter, the method includes modifying uplink Modulation and Coding Scheme (MCS) level of the one or more MSs.
摘要翻译：提供了一种在无线通信网络中管理上行链路通信的方法。该方法包括基于与一个或多个MS的每个MS对应的第一信号参数从多个MS中选择一个或多个移动站（MS），对应于一个或多个MS的每个MS的一个或多个第二信号参数，以及一个或多个阈值参数。第一信号参数与服务于MS的基站（BS）相关联。此外，一个或多个第二信号参数与与MS相邻的一个或多个BS相关联。一个或多个阈值参数与通信参数相关联。此后，该方法包括修改一个或多个MS的上行链路调制和编码方案（MCS）级别。

2. 发明申请

US20090154388A1 Link adaptation of a broadcast system 有权
标题翻译：链接适应广播系统
公开(公告)号：US20090154388A1
公开(公告)日：2009-06-18
申请号：US12002208
申请日：2007-12-14
申请人： Louay Jalloul , Sriram Mudulodu , Djordje Tujkovic , Kamesh Medepalli
发明人： Louay Jalloul , Sriram Mudulodu , Djordje Tujkovic , Kamesh Medepalli
IPC分类号： H04H20/71
CPC分类号： H04L1/0019 , H04L1/0003 , H04L1/0026 , H04L1/0027 , H04L2001/0093
摘要： A method and apparatus of link adaptation of a broadcast system is disclosed. The method includes a base station adaptively determining a signal quality threshold. The base station broadcasts a signal, wherein the signal includes the signal quality threshold. A plurality of subscribers receives the signal, and measure a signal quality. Each of a subset of the plurality of subscribers transmits back to the base station an indicator of whether the received signal has a measured signal quality that is either above or below the signal quality threshold. A percentage of subscribers that receive the signal having a received signal quality above the signal quality threshold is estimated. A transmission modulation format and coding is selected based on the estimated percentage.
摘要翻译：公开了广播系统的链路自适应的方法和装置。该方法包括基站自适应地确定信号质量阈值。基站广播信号，其中信号包括信号质量阈值。多个用户接收信号，并测量信号质量。多个用户的子集中的每一个向基站发送接收信号是否具有高于或低于信号质量阈值的测量信号质量的指示符。估计接收信号质量高于信号质量阈值的信号的用户的百分比。基于估计的百分比来选择传输调制格式和编码。

3. 发明授权

US08151158B2 Method and system for decoding a data burst in a communication system 有权
标题翻译：用于解码通信系统中的数据突发的方法和系统
公开(公告)号：US08151158B2
公开(公告)日：2012-04-03
申请号：US11893288
申请日：2007-08-15
申请人： Sriram Mudulodu , Louay Jalloul
发明人： Sriram Mudulodu , Louay Jalloul
IPC分类号： H03M13/00 , H04L1/18
CPC分类号： H03M13/3738 , H03M13/09 , H03M13/1102 , H03M13/13 , H03M13/23 , H03M13/2957 , H03M13/3715 , H03M13/6306
摘要： The present invention provides methods and systems for decoding a data burst in a communication system. A data burst, including a plurality of forward error correction (FEC) blocks, is received. At least one FEC block of the data burst is decoded. Thereafter, it is detected if one or more errors are present in the at least one FEC block of the data burst. Upon detecting one or more errors in the at least one FEC block, the method halts the decoding of the data burst. In response to detecting the one or more errors, a retransmitted data burst corresponding to the data burst is received. One or more FEC blocks of the data burst may be combined with corresponding one or more FEC blocks of the retransmitted data burst. The one or more FEC blocks of the data burst includes the at least one FEC block that had the one or more errors detected as present. Thereafter, the decoding of the retransmitted data burst is commenced starting from the at least one FEC block that had the one or more errors detected as present in the previous transmission.
摘要翻译：本发明提供了用于解码通信系统中的数据突发的方法和系统。接收包括多个前向纠错（FEC）块的数据脉冲串。解码数据突发的至少一个FEC块。此后，检测数据突发的至少一个FEC块中是否存在一个或多个错误。当检测到至少一个FEC块中的一个或多个错误时，该方法停止数据突发的解码。响应于检测到一个或多个错误，接收与数据突发相对应的重发数据突发。数据突发的一个或多个FEC块可以与重传的数据突发的对应的一个或多个FEC块组合。数据脉冲串的一个或多个FEC块包括具有当前检测到的一个或多个错误的至少一个FEC块。此后，重传的数据突发的解码从具有在先前传输中存在的一个或多个错误的至少一个FEC块开始。

4. 发明授权

US07916800B2 Method for estimating frequency offset at a subscriber station receiver in a multi-carrier system 有权
标题翻译：用于在多载波系统中估计用户台接收机处的频率偏移的方法
公开(公告)号：US07916800B2
公开(公告)日：2011-03-29
申请号：US11998541
申请日：2007-11-30
申请人： Sriram Mudulodu , Louay Jalloul , Bertrand Hochwald
发明人： Sriram Mudulodu , Louay Jalloul , Bertrand Hochwald
IPC分类号： H04L27/28
CPC分类号： H04L27/2657 , H04L27/2675 , H04L2027/0046
摘要： A method and system of estimating frequency offset of a subscriber station is disclosed. The method includes the subscriber station receiving a composite signal, wherein the composite signal includes multi-carrier signals transmitted from a plurality of base stations. The subscriber station selects a subset of the plurality of base stations. The subscriber station selects at least one pair of multi-carrier symbols of the composite signal, wherein each of the at least one pair of multi-carrier symbols includes a plurality of pilot sub-carriers. The subscriber station selects at least one group of the plurality of pilot sub-carriers within the at least one pair of multi-carrier symbols based on transmit pilot symbols of the pilot sub-carriers of the multi-carrier signals transmitted by the subset of the plurality of base stations. The frequency offset is estimated based on a conjugate product between a linear combination of received symbols of a first multi-carrier symbol of a pair of multi-carrier symbols with a linear combination of received symbols of a second multi-carrier symbol of the pair of multi-carrier symbols on each of the pilot sub-carriers of the at least one group of the plurality of pilot sub-carriers.
摘要翻译：公开了一种估计用户台频偏的方法和系统。该方法包括用户站接收复合信号，其中复合信号包括从多个基站发射的多载波信号。用户站选择多个基站的子集。用户站选择复合信号的至少一对多载波符号，其中至少一对多载波符号中的每一个包括多个导频子载波。用户台基于由子载波的子集发送的多载波信号的导频子载波的发送导频符号来选择至少一个多载波符号对内的多个导频子载波中的至少一个组多个基站。基于一对多载波符号的第一多载波符号的接收符号的线性组合与一对多载波符号的第二多载波符号的接收符号的线性组合，估计频偏所述多个导频子载波中的至少一个组的每个导频子载波上的多载波符号。

5. 发明申请

US20110064154A1 Methods and Systems For Performing Channel Estimation In A Wireless Communication System 审中-公开
标题翻译：用于在无线通信系统中执行信道估计的方法和系统
公开(公告)号：US20110064154A1
公开(公告)日：2011-03-17
申请号：US12951236
申请日：2010-11-22
申请人： Sriram Mudulodu , Sam P. Alex , Louay Jalloul
发明人： Sriram Mudulodu , Sam P. Alex , Louay Jalloul
IPC分类号： H04L27/28
CPC分类号： H04L25/0212 , H04L25/0224
摘要： The invention provides methods and systems for channel estimation. A method comprises receiving a plurality of signal frames, comprising at least a first zone and a second zone, from a plurality of base stations in the wireless communication system. Two or more first delay profiles corresponding to two or more base stations are determined using the first zone. The method further comprising detecting at least one aliased tap in a time domain channel response of the second zone using the two or more first delay profiles. Another method comprises receiving a signal frame, comprising at least a preamble symbol and a data part, from a base station. A first delay profile corresponding to the preamble symbol is determined and a second delay profile corresponding to the data part is obtained. The first delay profile is analyzed in conjunction with the second delay profile to detect one or more aliased taps in a time domain channel response of the data part. The detected one or more aliased taps are nulled/rectified.
摘要翻译：本发明提供了用于信道估计的方法和系统。一种方法包括从无线通信系统中的多个基站接收包括至少第一区域和第二区域的多个信号帧。使用第一区确定对应于两个或多个基站的两个或多个第一延迟分布。该方法还包括使用两个或更多个第一延迟分布来检测第二区域的时域信道响应中的至少一个混叠抽头。另一种方法包括从基站接收包括至少前同步码符号和数据部分的信号帧。确定对应于前导符号的第一延迟分布，并且获得与数据部分对应的第二延迟分布。第一延迟分布结合第二延迟分布来分析，以在数据部分的时域信道响应中检测一个或多个混叠抽头。检测到的一个或多个别名抽头被归零/纠正。

6. 发明授权

US07706459B2 System and method for channel estimation 失效
标题翻译：信道估计的系统和方法
公开(公告)号：US07706459B2
公开(公告)日：2010-04-27
申请号：US11505567
申请日：2006-08-16
申请人： Sriram Mudulodu , Louay Jalloul
发明人： Sriram Mudulodu , Louay Jalloul
IPC分类号： H04K1/10
CPC分类号： H04L25/0232 , H04L25/0212 , H04L25/022 , H04L25/0236 , H04L27/2647
摘要： Systems and methods are provided for improving a channel estimate in a signal communication system. The systems and methods improve the channel estimation quality and/or the delay spread of the channels that can be estimated. The combining of symbols operates to increase the density of pilots that are processed to provide the channel estimate.
摘要翻译：提供了用于改善信号通信系统中的信道估计的系统和方法。系统和方法提高了可以估计的信道的信道估计质量和/或延迟扩展。符号的组合操作以增加被处理以提供信道估计的导频的密度。

7. 发明申请

US20090049362A1 Method and system for decoding a data burst in a communication system 有权
标题翻译：用于解码通信系统中的数据突发的方法和系统
公开(公告)号：US20090049362A1
公开(公告)日：2009-02-19
申请号：US11893288
申请日：2007-08-15
申请人： Sriram Mudulodu , Louay Jalloul
发明人： Sriram Mudulodu , Louay Jalloul
IPC分类号： H03M13/00
CPC分类号： H03M13/3738 , H03M13/09 , H03M13/1102 , H03M13/13 , H03M13/23 , H03M13/2957 , H03M13/3715 , H03M13/6306
摘要： The present invention provides methods and systems for decoding a data burst in a communication system. A data burst, including a plurality of forward error correction (FEC) blocks, is received. At least one FEC block of the data burst is decoded. Thereafter, it is detected if one or more errors are present in the at least one FEC block of the data burst. Upon detecting one or more errors in the at least one FEC block, the method halts the decoding of the data burst. In response to detecting the one or more errors, a retransmitted data burst corresponding to the data burst is received. One or more FEC blocks of the data burst may be combined with corresponding one or more FEC blocks of the retransmitted data burst. The one or more FEC blocks of the data burst includes the at least one FEC block that had the one or more errors detected as present. Thereafter, the decoding of the retransmitted data burst is commenced starting from the at least one FEC block that had the one or more errors detected as present in the previous transmission.
摘要翻译：本发明提供了用于解码通信系统中的数据突发的方法和系统。接收包括多个前向纠错（FEC）块的数据脉冲串。解码数据突发的至少一个FEC块。此后，检测数据突发的至少一个FEC块中是否存在一个或多个错误。当检测到至少一个FEC块中的一个或多个错误时，该方法停止数据突发的解码。响应于检测到一个或多个错误，接收与数据突发相对应的重发数据突发。数据突发的一个或多个FEC块可以与重传的数据突发的对应的一个或多个FEC块组合。数据脉冲串的一个或多个FEC块包括具有当前检测到的一个或多个错误的至少一个FEC块。此后，重传的数据突发的解码从具有在先前传输中存在的一个或多个错误的至少一个FEC块开始。

8. 发明申请

US20080273621A1 Method and apparatus for estimating frequency offset and timing offset of one or more mobile stations (MSs) 有权
标题翻译：用于估计一个或多个移动站（MS）的频率偏移和定时偏移的方法和装置
公开(公告)号：US20080273621A1
公开(公告)日：2008-11-06
申请号：US12004570
申请日：2007-12-21
申请人： Rajesh Raja Manakkal , Louay Jalloul , Sam P. Alex , Anupama Lakshmanan , Diordje Tujkovic , Sriram Mudulodu
发明人： Rajesh Raja Manakkal , Louay Jalloul , Sam P. Alex , Anupama Lakshmanan , Diordje Tujkovic , Sriram Mudulodu
IPC分类号： H04B7/02
CPC分类号： H04L27/2662 , H04L5/0007 , H04L5/0051 , H04L27/2657 , H04L27/2675
摘要： A method and apparatus for estimating frequency offset and timing offset of a first Mobile Station (MS) in a communication system is provided. The method includes receiving a composite signal at a plurality of receiver antennas of a Base Transceiver Station (BTS). The composite signal includes a first signal transmitted from a first MS and a second signal transmitted from a second MS. The composite signal includes one or more tiles. Each tile includes a plurality of data sub-carriers, a plurality of first pilot sub-carriers, and a plurality of second pilot sub-carriers. A total phase offset of the first MS is estimated based on a complex conjugate product of pilot symbols of the plurality of first pilot sub-carriers. Thereafter, a first phase offset corresponding to the timing offset of the first MS is estimated based on a Power Delay Profile (PDP) of one or more first pilot sub-carriers. Finally, a second phase offset corresponding to the frequency offset of the first MS is determined based on the total phase offset and the first phase offset.
摘要翻译：提供了一种用于估计通信系统中的第一移动站（MS）的频率偏移和定时偏移的方法和装置。该方法包括在基站收发台（BTS）的多个接收机天线处接收复合信号。复合信号包括从第一MS发送的第一信号和从第二MS发送的第二信号。复合信号包括一个或多个瓦片。每个瓦片包括多个数据副载波，多个第一导频子载波和多个第二导频子载波。基于多个第一导频子载波的导频符号的复共轭乘积来估计第一MS的总相位偏移。此后，基于一个或多个第一导频子载波的功率延迟曲线（PDP）来估计与第一MS的定时偏移相对应的第一相位偏移。最后，基于总相位偏移和第一相位偏移来确定与第一MS的频率偏移相对应的第二相位偏移。

9. 发明申请

US20070211806A1 System and method for channel estimation 失效
标题翻译：信道估计的系统和方法
公开(公告)号：US20070211806A1
公开(公告)日：2007-09-13
申请号：US11505567
申请日：2006-08-16
申请人： Sriram Mudulodu , Louay Jalloul
发明人： Sriram Mudulodu , Louay Jalloul
IPC分类号： H04K1/10
CPC分类号： H04L25/0232 , H04L25/0212 , H04L25/022 , H04L25/0236 , H04L27/2647
摘要： Systems and methods are provided for improving a channel estimate in a signal communication system. The systems and methods improve the channel estimation quality and/or the delay spread of the channels that can be estimated. The combining of symbols operates to increase the density of pilots that are processed to provide the channel estimate.
摘要翻译：提供了用于改善信号通信系统中的信道估计的系统和方法。系统和方法提高了可以估计的信道的信道估计质量和/或延迟扩展。符号的组合操作以增加被处理以提供信道估计的导频的密度。

10. 发明授权

US08867570B2 Methods of transmitting pilot tones and data in spatial multiplexing transmission 有权
标题翻译：在空间复用传输中发送导频音和数据的方法
公开(公告)号：US08867570B2
公开(公告)日：2014-10-21
申请号：US11823692
申请日：2007-06-28
申请人： Sriram Mudulodu , Rajesh Raja Manakkal , Sam P. Alex , Louay Jalloul
发明人： Sriram Mudulodu , Rajesh Raja Manakkal , Sam P. Alex , Louay Jalloul
IPC分类号： H04B3/10 , H04B7/04 , H04L5/00 , H04B7/06 , H04W52/32 , H04L27/26
CPC分类号： H04B7/0452 , H04B7/068 , H04L5/0023 , H04L5/0037 , H04L5/0042 , H04L5/005 , H04L5/0051 , H04L27/2657 , H04W52/325
摘要： A method and apparatus of transmitting pilot tones and data in multi-carrier spatial multiplexing transmission is disclosed. The method includes a plurality of subscribers transmitting data to a base station through common frequency sub-carrier and symbol time tiles. Each of the multiple subscribers rotating frequency sub-carrier and symbol time locations of pilot tones within the frequency sub-carrier and symbol time tiles.
摘要翻译：公开了一种在多载波空间复用传输中发送导频音和数据的方法和装置。该方法包括多个用户通过公共频率子载波和符号时间块向基站发送数据。多个用户中的每一个在频率子载波和符号时间瓦片内旋转导频音调的频率子载波和符号时间位置。

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