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61. 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。

62. 发明授权

US07477698B2 Method and system for rate-2 transmission 有权
标题翻译：速率2传输的方法和系统
公开(公告)号：US07477698B2
公开(公告)日：2009-01-13
申请号：US11205504
申请日：2005-08-16
申请人： Shashidhar Vummintala , Arogyaswami Paulraj , Erik D. Lindskog , Balaji S. Rajan , Djordje Tujkovic
发明人： Shashidhar Vummintala , Arogyaswami Paulraj , Erik D. Lindskog , Balaji S. Rajan , Djordje Tujkovic
IPC分类号： H04B7/02
CPC分类号： H04L1/0606 , H04L1/0071 , H04L1/0618
摘要： Signal encoding in a multiple input multiple output system in a wireless communication network is provided. The communication system provides a method of encoding and transmitting symbols in a rate-2 complex symbol per second per Hertz transmission system that achieves a maximum diversity of four for a four transmit antenna system and a diversity of three on a three transmit antenna system. The communication system further provides a method of interleaving the complex symbols such that each interleaved symbol comprises information of at least two complex symbols where the complex symbols obtain values from a rotated constellation.
摘要翻译：提供了在无线通信网络中的多输入多输出系统中的信号编码。通信系统提供了一种以Hertz传输系统每秒的速率2复数符号进行编码和传输符号的方法，其对于四个发射天线系统实现四个最大分集，在三个发射天线系统上实现三分之一。通信系统还提供了一种对复数符号进行交织的方法，使得每个交错符号包括复数符号从旋转星座获得值的至少两个复符号的信息。

63. 发明申请

US20080285537A1 System and method for communicating packet in a wireless multicast and broadcast communication network 失效
标题翻译：用于在无线组播和广播通信网络中传送分组的系统和方法
公开(公告)号：US20080285537A1
公开(公告)日：2008-11-20
申请号：US11803974
申请日：2007-05-16
申请人： Kameswara Medapalli , Louay Jalloul , Kamlesh Rath
发明人： Kameswara Medapalli , Louay Jalloul , Kamlesh Rath
IPC分类号： H04J3/24
CPC分类号： H04L5/0023 , H04L1/1887 , H04L1/1893 , H04L5/0046 , H04L2001/0092
摘要： A method and system for communicating packets in a Wireless Multicast and Broadcast communication network is provided. The method includes selecting a Modulation and Coding Scheme (MCS) for transmission of a packet. The packet is then transmitted using the selected MCS on at least one of a subset of available time slots, a subset of available frequency sub-carriers and a subset of available antennas. Thereafter, it is autonomously decided whether the plurality of transmitters are to retransmit the packet. Then, the packet is retransmitted on at least one of a different subset of time slots, a different subset of frequency sub-carriers and a different subset of antennas.
摘要翻译：提供了一种用于在无线组播和广播通信网络中传送分组的方法和系统。该方法包括选择用于传输分组的调制和编码方案（MCS）。然后使用所选择的MCS在可用时隙的子集，可用频率子载波的子集和可用天线的子集中的至少一个上发送分组。此后，自主决定多个发射机是否要重发分组。然后，在时隙的不同子集，频率子载波的不同子集和不同的天线子集中的至少一个上重传分组。

64. 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。

65. 发明授权

US07433420B1 Phase rotation estimation 有权
标题翻译：相位旋转估计
公开(公告)号：US07433420B1
公开(公告)日：2008-10-07
申请号：US11061153
申请日：2005-02-18
申请人： Sriraman Dakshinamurthy , Joel L. Dawson , Derek K. Shaeffer , Korhan Titizer
发明人： Sriraman Dakshinamurthy , Joel L. Dawson , Derek K. Shaeffer , Korhan Titizer
IPC分类号： H04L25/49
CPC分类号： H04L27/368
摘要： Apparatus, systems, and methods are described that implement techniques for estimating a relative rotation between a first complex signal and a second complex signal. In apparatus form, a rotation-estimation circuit includes a first quadrant detector and receives the first and second complex signals and produces an estimate of the relative rotation between the complex signals. A variable rotator receives the estimate of the relative rotation and rotates at least one of the first and second complex signals using the estimate of the relative rotation. In method form, a first quadrant estimate is calculated that corresponds to the relative rotation between the first and second complex signals, and at least one of the first and second complex signals is rotated using the quadrant estimate of the relative rotation.
摘要翻译：描述了实现用于估计第一复信号和第二复信号之间的相对旋转的技术的装置，系统和方法。在装置形式中，旋转估计电路包括第一象限检测器，并接收第一和第二复数信号，并产生复信号之间的相对旋转的估计。可变旋转器接收相对旋转的估计，并使用相对旋转的估计来旋转第一和第二复数信号中的至少一个。在方法形式中，计算对应于第一和第二复数信号之间的相对旋转的第一象限估计，并且使用相对旋转的象限估计来旋转第一和第二复数信号中的至少一个。

66. 发明申请

US20080239938A1 Method and system for uplink coordinated reception in orthogonal frequency division multiple access systems 有权
标题翻译：在正交频分多址系统中上行协调接收的方法和系统
公开(公告)号：US20080239938A1
公开(公告)日：2008-10-02
申请号：US11731714
申请日：2007-03-30
申请人： Louay Jalloul , Djordje Tujkovic , Vummintala Shashidhar , Bertrand Hochwald , Arogyaswami Paulraj
发明人： Louay Jalloul , Djordje Tujkovic , Vummintala Shashidhar , Bertrand Hochwald , Arogyaswami Paulraj
IPC分类号： H04J1/12
CPC分类号： H04W72/082 , H04B7/0491 , H04L5/023 , H04L2025/03414 , H04L2025/03426 , H04W52/24 , H04W52/241 , H04W52/243
摘要： Embodiments disclose a method of coordinating reception of uplink transmissions in order to reduce interference among transceivers in an OFDM wireless transmission system, or similar communication system, including a number of receivers communicating with one or more basestations in cell or sector arrangements. A basestation within each sector includes an uplink coordinated reception process that imposes coordinated reception techniques across sector or cell boundaries in order to improve uplink transmission quality between target terminals and basestations within each sector.
摘要翻译：实施例公开了一种协调上行链路传输的接收的方法，以便减少OFDM无线传输系统中的收发器之间的干扰，或者类似的通信系统，包括与小区或扇区布置中的一个或多个基站通信的多个接收机。每个扇区内的基站包括上行链路协调接收过程，其跨扇区或小区边界施加协调的接收技术，以便改善目标终端与每个扇区内的基站之间的上行传输质量。

67. 发明申请

US20080004024A1 Managing subscriber connections between at least two types of wireless networks 审中-公开
标题翻译：管理至少两种类型的无线网络之间的用户连接
公开(公告)号：US20080004024A1
公开(公告)日：2008-01-03
申请号：US11823296
申请日：2007-06-27
申请人： Anuj Puri , Bertrand Hochwald
发明人： Anuj Puri , Bertrand Hochwald
IPC分类号： H04Q7/20
CPC分类号： H04W48/18 , H04W36/0088 , H04W36/14
摘要： Methods a wireless system managing subscriber handoff from a first type wireless network to a second type of wireless network are disclosed. The method includes the subscriber communicating with a first type of wireless network. The subscriber negotiates a mode with the first type of wireless network establishing a period of time in which the first type of wireless network does not wirelessly transmit data to the subscriber. The subscriber monitors communication with a second type of wireless network during the established period of time.
摘要翻译：公开了一种管理从第一类型无线网络到第二类型无线网络的用户切换的无线系统。该方法包括用户与第一类型的无线网络进行通信。用户与第一类型的无线网络协商模式，建立第一类型的无线网络不向用户无线地发送数据的时间段。用户在建立的时间段期间监视与第二类型的无线网络的通信。

68. 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。

69. 发明申请

US20060176882A1 Method and system of early indication for multi-user wireless communication systems 审中-公开
标题翻译：多用户无线通信系统早期指示方法及系统
公开(公告)号：US20060176882A1
公开(公告)日：2006-08-10
申请号：US11056311
申请日：2005-02-10
申请人： Brett Schein , Trevor Pearman
发明人： Brett Schein , Trevor Pearman
IPC分类号： H04L12/28
CPC分类号： H04W72/1289 , H04W52/0212 , H04W52/0248
摘要： The present invention relates to a method of providing an early indication of at least one burst allocation made for at least one subscriber station by allocating a predetermined number of bits representing the early indication. The invention also provides a method for generating the predetermined number of bits for providing the early indication by determining whether the subscriber station has the allocation in a current frame and setting a related bit in the predetermined numbers of bits to a predetermined value when an allocation is made for the subscriber station.
摘要翻译：本发明涉及一种通过分配表示早期指示的预定数量的比特来为至少一个用户站提供至少一个突发分配的早期指示的方法。本发明还提供了一种用于通过确定用户站是否具有当前帧中的分配并将预定位数中的相关比特设置为预定值来生成预定数量的比特以提供早期指示的方法，当分配是为用户站制作。

70. 发明申请

US20060023772A1 Method and system for performing channel estimation in a multiple antenna block transmission system 有权
公开(公告)号：US20060023772A1
公开(公告)日：2006-02-02
申请号：US11195523
申请日：2005-08-01
申请人： Sriram Mudulodu , Krishnamurthy Giridhar
发明人： Sriram Mudulodu , Krishnamurthy Giridhar
IPC分类号： H04B1/707
CPC分类号： H04L25/0212 , H04B1/7113 , H04B7/02 , H04B7/04 , H04B17/364 , H04L25/0204 , H04L25/0206 , H04L27/2601
摘要： Methods and systems for performing channel estimation in a multiple antenna block transmission system are provided so as to improve the channel estimation quality and/or the delay spread of the channels that can be estimated.

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