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81. 发明申请

US20060013338A1 Incremental pilot insertion for channnel and interference estimation 有权
标题翻译：增量导频插入用于信道和干扰估计
公开(公告)号：US20060013338A1
公开(公告)日：2006-01-19
申请号：US11128976
申请日：2005-05-13
申请人： Dhananjay Gore , Avneesh Agrawal , Aamod Khandekar
发明人： Dhananjay Gore , Avneesh Agrawal , Aamod Khandekar
IPC分类号： H04L27/16
CPC分类号： H04L25/0226 , H04L5/0007 , H04L5/005 , H04L5/0051 , H04L5/006
摘要： Dynamic resource allocation systems, apparatus, and methods are disclosed for selectively improving the ability of a receiver to determine a channel estimate in an Orthogonal Frequency Division Multiple Access (OFDMA) system. A wireless communication system can use a common pilot channel configuration to aid channel estimation in one or more receivers in communication with the system. A receiver in communication with the system may be unable to demodulate received data due to an inaccurate channel estimate. The receiver can communicate to a transmitter in the system a request for additional channel estimation resources. The wireless communication system can provide additional channel estimation resources by inserting dedicated pilot channels into one or more of the frequencies allocated to symbols for the receiver. If the receiver is still unable to demodulate received data, the wireless communication system can incrementally insert additional pilot channels in the symbol associated with the receiver.
摘要翻译：公开了动态资源分配系统，装置和方法，用于选择性地提高接收机在正交频分多址（OFDMA）系统中确定信道估计的能力。无线通信系统可以使用公共导频信道配置来帮助与系统通信的一个或多个接收机中的信道估计。与系统通信的接收机可能由于不准确的信道估计而无法解调所接收的数据。接收机可以向系统中的发射机通信另外的信道估计资源的请求。无线通信系统可以通过将专用导频信道插入分配给接收机的符号的一个或多个频率来提供额外的信道估计资源。如果接收机仍然不能解调所接收的数据，则无线通信系统可以递增地在与接收机相关联的符号中插入附加的导频信道。

82. 发明申请

US20070097910A1 SDMA resource management 有权
标题翻译： SDMA资源管理
公开(公告)号：US20070097910A1
公开(公告)日：2007-05-03
申请号：US11261837
申请日：2005-10-27
申请人： Tingfang Ji , Dhananjay Gore , Alexei Gorokhov , Min Dong , Avneesh Agrawal
发明人： Tingfang Ji , Dhananjay Gore , Alexei Gorokhov , Min Dong , Avneesh Agrawal
IPC分类号： H04Q7/00
CPC分类号： H04W72/06 , H04B1/713 , H04B7/026 , H04L5/0023 , H04L5/0037 , H04L5/0044 , H04L5/023
摘要： A method for allocating resources in a wireless communications environment comprises receiving a mapping between a first hop-port and frequency range, and determining whether to map a second access terminal to a second hop-port that is mapped to at least the same frequency range during a substantially similar instance in time, the determination made as a function of characteristics relating to a first access terminal associated with the first hop-port. The method can further include determining that the first access terminal is a candidate for employing Space-Division Multiple Access (SDMA), and mapping the second-hop port and associating the second access terminal with the second hop-port when the second access terminal is also a candidate for employing SDMA.
摘要翻译：一种用于在无线通信环境中分配资源的方法包括：接收第一跳跃端口和频率范围之间的映射，以及确定是否将第二接入终端映射到映射到至少相同频率范围的第二跳频端口基本相似的时间实例，根据与与第一跳跃端口相关联的第一接入终端的特性的函数进行确定。该方法还可以包括确定第一接入终端是采用空分多址（SDMA）的候选者，并且当第二接入终端是第二接入终端时，映射第二跳接口并将第二接入终端与第二跳接口相关联也是采用SDMA的候选人。

83. 发明授权

US08498669B2 Antenna array calibration for wireless communication systems 有权
标题翻译：无线通信系统的天线阵列校准
公开(公告)号：US08498669B2
公开(公告)日：2013-07-30
申请号：US11398077
申请日：2006-04-04
申请人： Ayman Fawzy Naguib , Avneesh Agrawal , Alexei Gorokhov
发明人： Ayman Fawzy Naguib , Avneesh Agrawal , Alexei Gorokhov
IPC分类号： G08B5/22
CPC分类号： H01Q3/267
摘要： Calibration for a transmit chain of a device transmitting information to multiple devices over wireless links and receive chains of the multiple devices receiving information over one of the wireless links utilizing a plurality of forward link channel estimates received from at least some of the plurality of devices and a plurality of reverse link channel estimates from the plurality of devices.
摘要翻译：用于通过无线链路向多个设备发送信息的设备的发送链的校准，以及利用从多个设备中的至少一些设备接收的多个前向链路信道估计，通过无线链路之一接收信息的多个设备的链接;以及来自多个设备的多个反向链路信道估计。

84. 发明授权

US08363738B2 Hierarchical coding for multicast messages 有权
公开(公告)号：US08363738B2
公开(公告)日：2013-01-29
申请号：US13169280
申请日：2011-06-27
申请人： Alexei Gorokhov , Avneesh Agrawal , Arvind Vijay Keerthi
发明人： Alexei Gorokhov , Avneesh Agrawal , Arvind Vijay Keerthi
IPC分类号： H04L27/00
CPC分类号： H04L1/005 , H03M13/1102 , H03M13/1515 , H03M13/29 , H03M13/2903 , H03M13/2927 , H03M13/2957 , H03M13/2972 , H03M13/2978 , H03M13/356 , H04L1/0013 , H04L1/0041 , H04L1/0065 , H04L2001/0093
摘要： Techniques for sending signaling information using hierarchical coding are described. With hierarchical coding, individual messages for users are encoded using multiple interconnected encoders such that (1) the message for each user is sent at a data rate suitable for that user and (2) a single multicast message is generated for the messages for all users. A base station determines data rates supported by the users and the code rates to achieve these data rates. Each data rate is determined by one or more code rates. Signaling information for the users is mapped to data blocks to be sent at different data rates. Each data block is then encoded in accordance with the code rate(s) associated with the data rate for that data block. A final coded block is generated for all users and transmitted. Each user performs the complementary decoding to recover the message sent to that user.

85. 发明申请

US20120020354A1 HIERARCHICAL CODING FOR MULTICAST MESSAGES 有权
公开(公告)号：US20120020354A1
公开(公告)日：2012-01-26
申请号：US13169280
申请日：2011-06-27
申请人： Alexei Gorokhov , Avneesh Agrawal , Arvind Vijay Keerthi
发明人： Alexei Gorokhov , Avneesh Agrawal , Arvind Vijay Keerthi
IPC分类号： H04L12/56
CPC分类号： H04L1/005 , H03M13/1102 , H03M13/1515 , H03M13/29 , H03M13/2903 , H03M13/2927 , H03M13/2957 , H03M13/2972 , H03M13/2978 , H03M13/356 , H04L1/0013 , H04L1/0041 , H04L1/0065 , H04L2001/0093
摘要： Techniques for sending signaling information using hierarchical coding are described. With hierarchical coding, individual messages for users are encoded using multiple interconnected encoders such that (1) the message for each user is sent at a data rate suitable for that user and (2) a single multicast message is generated for the messages for all users. A base station determines data rates supported by the users and the code rates to achieve these data rates. Each data rate is determined by one or more code rates. Signaling information for the users is mapped to data blocks to be sent at different data rates. Each data block is then encoded in accordance with the code rate(s) associated with the data rate for that data block. A final coded block is generated for all users and transmitted. Each user performs the complementary decoding to recover the message sent to that user.

86. 发明授权

US08064424B2 SDMA for WCDMA 有权
标题翻译： SDMA用于WCDMA
公开(公告)号：US08064424B2
公开(公告)日：2011-11-22
申请号：US11213463
申请日：2005-08-26
申请人： Sharad Deepak Sambhwani , Dhananjay Ashok Gore , Avneesh Agrawal , Arak Sutivong , Alexei Gorokhov
发明人： Sharad Deepak Sambhwani , Dhananjay Ashok Gore , Avneesh Agrawal , Arak Sutivong , Alexei Gorokhov
IPC分类号： H04B7/216
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：描述了在有限的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。

87. 发明申请

US20100159940A1 METHODS AND APPARATUS FOR FLEXIBLE SPECTRUM ALLOCATION IN COMMUNICATION SYSTEMS 有权
标题翻译：通信系统中灵活频谱分配的方法和设备
公开(公告)号：US20100159940A1
公开(公告)日：2010-06-24
申请号：US12719794
申请日：2010-03-08
申请人： Alexei Gorokhov , Avneesh Agrawal
发明人： Alexei Gorokhov , Avneesh Agrawal
IPC分类号： H04W72/04
CPC分类号： H04L5/0046 , H04L5/0007 , H04L5/0037 , H04L5/0042 , H04L5/06
摘要： The disclosed embodiments provide for methods and systems for flexibly allocating a shared frequency spectrum to a plurality of users, the spectrum may have a first number of segments, each segment having a second number of clusters associated with a certain sector/cell. In one aspect, a method for flexibly allocating a shared frequency spectrum to a plurality of users comprises the acts of fixedly assigning a first group of clusters to a first group of users, such that the first group of users stay fixed to the assigned clusters, and assigning a second group of clusters to a second group of users, such that the second group of users hop within the assigned clusters.
摘要翻译：所公开的实施例提供了用于向多个用户灵活地分配共享频谱的方法和系统，频谱可以具有第一数量的段，每个段具有与特定扇区/小区相关联的第二数量的簇。一方面，一种用于向多个用户灵活地分配共享频谱的方法包括将第一组群固定地分配给第一组用户的动作，使得第一组用户保持固定到所分配的群，以及将第二组群集分配给第二组用户，使得所述第二组用户在所分配的群集内跳转。

88. 发明申请

US20090196221A1 METHOD AND APPARATUS FOR PROVIDING SIGNALING ACCESS 有权
标题翻译：提供信号访问的方法和装置
公开(公告)号：US20090196221A1
公开(公告)日：2009-08-06
申请号：US12198829
申请日：2008-08-26
申请人： Gavin B. Horn , Avneesh Agrawal , Ashwin Sampath , Alexei Gorokhov , Naga Bhushan , Rajarshi Gupta , Fatih Ulupinar , Parag A. Agashe , Rajat Prakash
发明人： Gavin B. Horn , Avneesh Agrawal , Ashwin Sampath , Alexei Gorokhov , Naga Bhushan , Rajarshi Gupta , Fatih Ulupinar , Parag A. Agashe , Rajat Prakash
IPC分类号： H04W4/00 , H04L9/32 , H04W28/06
CPC分类号： H04W48/02 , H04W12/08 , H04W76/10 , H04W84/045
摘要： Signaling-only access may be established with an access node under certain circumstances such as, for example, upon determining that a node is not authorized for data access at the access node. A node that is not authorized for data access at an access node may still be paged by the access node through the use of signaling-only access. In this way, transmissions by the access node may not interfere with the reception of pages at the node. A first node may be selected for providing paging while a second node is selected for access under certain circumstances such as, for example, upon determining that the second node provides more desirable service than the first node.
摘要翻译：在某些情况下，例如在确定节点未被授权用于访问节点处的数据访问时，可以与接入节点建立仅信令访问。在访问节点处未被授权用于数据访问的节点仍然可以由接入节点通过使用仅信令接入进行寻呼。以这种方式，接入节点的传输可能不干扰节点处的页面的接收。可以选择第一节点来提供寻呼，而在某些情况下例如在确定第二节点提供比第一节点更理想的服务时，第二节点被选择用于接入。

89. 发明申请

US20090074094A1 BEACON SYMBOLS WITH MULTIPLE ACTIVE SUBCARRIERS FOR WIRELESS COMMUNICATION 审中-公开
标题翻译： BEACON符号与多个有源SUBCARRIERS无线通信
公开(公告)号：US20090074094A1
公开(公告)日：2009-03-19
申请号：US12206533
申请日：2008-09-08
申请人： Ravi Palanki , Avneesh Agrawal , Alexei Gorokhov
发明人： Ravi Palanki , Avneesh Agrawal , Alexei Gorokhov
IPC分类号： H04L27/00 , H04L27/28
CPC分类号： H04L27/10 , H04L5/0053 , H04L5/0091 , H04L27/30
摘要： Techniques for transmitting information using beacon symbols in a wireless communication system are described. In one design, a transmitter may map information to multiple subcarriers among a plurality of subcarriers, with the information being conveyed by the position of the multiple subcarriers. The transmitter may map the information to at least one non-binary symbol. The transmitter may then determine each of the multiple subcarriers based on one non-binary symbol or may determine all of the multiple subcarriers based on one non-binary symbol. The transmitter may generate a beacon symbol having the information mapped to the multiple subcarriers. The transmitter may use higher transmit power for the multiple subcarriers to allow receivers with low geometry to reliably receive the information. The use of multiple subcarriers may allow more information to be sent in the beacon symbol and may also improve frequency diversity.
摘要翻译：描述了在无线通信系统中使用信标符号发送信息的技术。在一种设计中，发射机可以将信息映射到多个子载波中的多个子载波，信息由多个子载波的位置传送。发射机可以将信息映射到至少一个非二进制符号。然后，发射机可以基于一个非二进制符号来确定多个子载波中的每一个，或者可以基于一个非二进制符号来确定所有多个子载波。发射机可以生成具有映射到多个子载波的信息的信标符号。发射机可以为多个子载波使用更高的发射功率，以允许具有低几何形状的接收机可靠地接收信息。多个子载波的使用可以允许在信标符号中发送更多的信息，并且还可以提高频率分集。

90. 发明申请

US20060284725A1 Antenna array calibration for wireless communication systems 有权
公开(公告)号：US20060284725A1
公开(公告)日：2006-12-21
申请号：US11398077
申请日：2006-04-04
申请人： Ayman Naguib , Avneesh Agrawal , Alexei Gorokhov
发明人： Ayman Naguib , Avneesh Agrawal , Alexei Gorokhov
IPC分类号： G08B5/22
CPC分类号： H01Q3/267
摘要： Calibration for a transmit chain of a device transmitting information to multiple devices over wireless links and receive chains of the multiple devices receiving information over one of the wireless links utilizing a plurality of forward link channel estimates received from at least some of the plurality of devices and a plurality of reverse link channel estimates from the plurality of devices.

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