专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

91. 发明授权

US09467958B2 Method and apparatus for mitigating temporary loss of synchronization in a wireless communication system 有权
标题翻译：用于减轻无线通信系统中的同步暂时丢失的方法和装置
公开(公告)号：US09467958B2
公开(公告)日：2016-10-11
申请号：US12178157
申请日：2008-07-23
申请人： Alexei Gorokhov , Avneesh Agrawal , Samir Kapoor
发明人： Alexei Gorokhov , Avneesh Agrawal , Samir Kapoor
IPC分类号： H04J3/06 , H04W56/00 , H04B7/26 , H04J11/00 , H04W48/10 , H04W52/14 , H04W92/10
CPC分类号： H04W56/0015 , H04B7/2693 , H04J11/0069 , H04W48/10 , H04W52/143 , H04W92/10
摘要： Techniques for mitigating temporary loss of synchronization in a wireless communication system are described. In an aspect, a cell may periodically broadcast a mode indicator to indicate synchronous operation or asynchronous operation by the cell. The cell may also broadcast its cell identity (ID), which may omit the mode indicator and would then remain unchanged when the cell switches between asynchronous and synchronous operation. In another aspect, the cell may send system time information indicative of its updated system time when switching from asynchronous operation to synchronous operation. The updated system time may be used for communication with terminals after the switch to synchronous operation. In yet another aspect, the cell may decrease its transmit power prior to switching synchronization mode, switch synchronization mode when its transmit power reaches a predetermined power level, and thereafter increase its transmit power.
摘要翻译：描述了用于减轻无线通信系统中的同步暂时丢失的技术。在一方面，小区可以周期性地广播模式指示符以指示小区的同步操作或异步操作。小区还可以广播其小区身份（ID），其可以省略模式指示符，并且在小区在异步和同步操作之间切换时将保持不变。另一方面，当从异步操作切换到同步操作时，小区可以发送指示其更新的系统时间的系统时间信息。在切换到同步操作之后，更新的系统时间可以用于与终端的通信。在另一方面，小区可以在切换同步模式之前降低其发射功率，当其发射功率达到预定功率电平时，切换同步模式，然后增加其发射功率。

92. 发明授权

US08542752B2 Hierarchical coding for multicast messages 有权
标题翻译：组播消息的分层编码
公开(公告)号：US08542752B2
公开(公告)日：2013-09-24
申请号：US13169289
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： H04B14/04
CPC分类号： H03M13/2945 , H03M13/2903 , H03M13/2948 , H03M13/2978 , H03M13/6362 , H03M13/6513 , H04L1/0041 , H04L1/005 , H04L1/0065 , H04L1/007 , H04L5/023 , H04L2001/0093 , H04N21/2381 , H04N21/2383 , H04N21/2402 , H04N21/2404 , H04N21/2405 , H04N21/6405 , H04N21/6408
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.
摘要翻译：描述使用分层编码发送信令信息的技术。使用分层编码，使用多个互连的编码器对用户的各个消息进行编码，使得（1）以适合于该用户的数据速率发送每个用户的消息，以及（2）为所有用户生成消息的单个多播消息。基站确定用户支持的数据速率和码率来实现这些数据速率。每个数据速率由一个或多个码率决定。将用户的信令信息映射到以不同数据速率发送的数据块。然后根据与该数据块的数据速率相关联的码率对每个数据块进行编码。为所有用户生成最终编码块并进行传输。每个用户执行补充解码以恢复发送给该用户的消息。

93. 发明申请

US20120257687A1 HIERARCHICAL CODING FOR MULTICAST MESSAGES 有权
标题翻译：多媒体信息的分层编码
公开(公告)号：US20120257687A1
公开(公告)日：2012-10-11
申请号：US13169289
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： H03M13/2945 , H03M13/2903 , H03M13/2948 , H03M13/2978 , H03M13/6362 , H03M13/6513 , H04L1/0041 , H04L1/005 , H04L1/0065 , H04L1/007 , H04L5/023 , H04L2001/0093 , H04N21/2381 , H04N21/2383 , H04N21/2402 , H04N21/2404 , H04N21/2405 , H04N21/6405 , H04N21/6408
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.
摘要翻译：描述使用分层编码发送信令信息的技术。使用分层编码，使用多个互连的编码器对用户的各个消息进行编码，使得（1）以适合于该用户的数据速率发送每个用户的消息，以及（2）为所有用户生成消息的单个多播消息。基站确定用户支持的数据速率和码率来实现这些数据速率。每个数据速率由一个或多个码率决定。将用户的信令信息映射到以不同数据速率发送的数据块。然后根据与该数据块的数据速率相关联的码率对每个数据块进行编码。为所有用户生成最终编码块并进行传输。每个用户执行补充解码以恢复发送给该用户的消息。

94. 发明授权

US08259669B2 On-demand reverse-link pilot transmission 有权
标题翻译：按需反向链路导频传输
公开(公告)号：US08259669B2
公开(公告)日：2012-09-04
申请号：US12721906
申请日：2010-03-11
申请人： Arak Sutivong , Avneesh Agrawal , Alexei Gorokhov , Edward Harrison Teague
发明人： Arak Sutivong , Avneesh Agrawal , Alexei Gorokhov , Edward Harrison Teague
IPC分类号： H04W4/00
CPC分类号： H04W74/04 , H04W74/002
摘要： Pilots are transmitted on demand on a reverse link and used for channel estimation and data transmission on a forward link. A base station selects at least one terminal for on-demand pilot transmission on the reverse link. Each selected terminal is a candidate for receiving data transmission on the forward link. The base station assigns each selected terminal with a time-frequency allocation, which may be for a wideband pilot, a narrowband pilot, or some other type of pilot. The base station receives and processes on-demand pilot transmission from each selected terminal and derives a channel estimate for the terminal based on the received pilot transmission. The base station may schedule terminals for data transmission on the forward link based on the channel estimates for all selected terminals. The base station may also process data (e.g., perform beamforming or eigensteering) for transmission to each scheduled terminal based on its channel estimate.
摘要翻译：飞行员根据需要在反向链路上传输，用于前向链路上的信道估计和数据传输。基站在反向链路上选择至少一个用于按需导频发送的终端。每个选择的终端是用于在前向链路上接收数据传输的候选者。基站为每个选择的终端分配时间频率分配，其可以用于宽带导频，窄带导频或某种其他类型的导频。基站从每个所选终端接收并处理按需导频传输，并根据接收到的导频传输导出终端的信道估计。基站可以基于所有选择的终端的信道估计来安排在前向链路上进行数据传输的终端。基站还可以基于其信道估计来处理数据（例如，执行波束成形或本征导向）以传输到每个调度的终端。

95. 发明申请

US20090052430A1 METHOD AND APPARATUS FOR MITIGATING TEMPORARY LOSS OF SYNCHRONIZATION IN A WIRELESS COMMUNICATION SYSTEM 有权
标题翻译：在无线通信系统中减少同步丢失的方法和装置
公开(公告)号：US20090052430A1
公开(公告)日：2009-02-26
申请号：US12178157
申请日：2008-07-23
申请人： Alexei Gorokhov , Avneesh Agrawal , Samir Kapoor
发明人： Alexei Gorokhov , Avneesh Agrawal , Samir Kapoor
IPC分类号： H04J3/06
CPC分类号： H04W56/0015 , H04B7/2693 , H04J11/0069 , H04W48/10 , H04W52/143 , H04W92/10
摘要： Techniques for mitigating temporary loss of synchronization in a wireless communication system are described. In an aspect, a cell may periodically broadcast a mode indicator to indicate synchronous operation or asynchronous operation by the cell. The cell may also broadcast its cell identity (ID), which may omit the mode indicator and would then remain unchanged when the cell switches between asynchronous and synchronous operation. In another aspect, the cell may send system time information indicative of its updated system time when switching from asynchronous operation to synchronous operation. The updated system time may be used for communication with terminals after the switch to synchronous operation. In yet another aspect, the cell may decrease its transmit power prior to switching synchronization mode, switch synchronization mode when its transmit power reaches a predetermined power level, and thereafter increase its transmit power.
摘要翻译：描述了用于减轻无线通信系统中的同步暂时丢失的技术。在一方面，小区可以周期性地广播模式指示符以指示小区的同步操作或异步操作。小区还可以广播其小区身份（ID），其可以省略模式指示符，并且在小区在异步和同步操作之间切换时将保持不变。另一方面，当从异步操作切换到同步操作时，小区可以发送指示其更新的系统时间的系统时间信息。在切换到同步操作之后，更新的系统时间可以用于与终端的通信。在另一方面，在切换同步模式之前，小区可以降低其发射功率，当其发射功率达到预定功率电平时，切换同步模式，然后增加其发射功率。

96. 发明申请

US20080153535A1 REVERSE LINK TRAFFIC POWER CONTROL FOR LBC FDD 有权
标题翻译： LBC FDD的反向链路交通功率控制
公开(公告)号：US20080153535A1
公开(公告)日：2008-06-26
申请号：US11947517
申请日：2007-11-29
申请人： Alexei Gorokhov , Mohammad J. Borran , Avneesh Agrawal
发明人： Alexei Gorokhov , Mohammad J. Borran , Avneesh Agrawal
IPC分类号： H04B7/00
CPC分类号： H04W52/367 , H04W52/146 , H04W52/16 , H04W52/244 , H04W52/247 , H04W52/362 , H04W52/48 , H04W52/60
摘要： Systems and methodologies are described that facilitate controlling reverse link power on a traffic channel. Assignments for reverse link communication can be yielded. Interference from mobile devices in neighboring sectors can be monitored and other sector interference (OSI) indications can be broadcasted. The OSI indications can be obtained by mobile devices to alter delta values employed for delta-based power control. Further, a maximum allowable amount of reduction of a delta value can be allocated per QoS class. Moreover, mobile devices can provide in-band and out-of-band feedback, which can be leveraged for future assignments.
摘要翻译：描述了有助于控制业务信道上的反向链路功率的系统和方法。可以产生反向链路通信的分配。可以监控来自相邻扇区中的移动设备的干扰，并且可以广播其他扇区干扰（OSI）指示。可以通过移动设备获得OSI指示来改变用于基于Δ的功率控制的增量值。此外，可以根据QoS等级分配增量值的最大允许量减少量。此外，移动设备可以提供带内和带外反馈，这可以用于将来的分配。

97. 发明申请

US20070147539A1 HIERARCHICAL CODING FOR MULTICAST MESSAGES 有权
标题翻译：多媒体信息的分层编码
公开(公告)号：US20070147539A1
公开(公告)日：2007-06-28
申请号：US11567014
申请日：2006-12-05
申请人： Alexei Gorokhov , Avneesh Agrawal , Arvind Keerthi
发明人： Alexei Gorokhov , Avneesh Agrawal , Arvind Keerthi
IPC分类号： H04L27/00
CPC分类号： H03M13/2945 , H03M13/2903 , H03M13/2948 , H03M13/2978 , H03M13/6362 , H03M13/6513 , H04L1/0041 , H04L1/005 , H04L1/0065 , H04L1/007 , H04L5/023 , H04L2001/0093 , H04N21/2381 , H04N21/2383 , H04N21/2402 , H04N21/2404 , H04N21/2405 , H04N21/6405 , H04N21/6408
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.
摘要翻译：描述使用分层编码发送信令信息的技术。使用分层编码，使用多个互连的编码器对用户的各个消息进行编码，使得（1）以适合于该用户的数据速率发送每个用户的消息，以及（2）为所有用户生成消息的单个多播消息。基站确定用户支持的数据速率和码率来实现这些数据速率。每个数据速率由一个或多个码率决定。将用户的信令信息映射到以不同数据速率发送的数据块。然后根据与该数据块的数据速率相关联的码率对每个数据块进行编码。为所有用户生成最终编码块并进行传输。每个用户执行补充解码以恢复发送给该用户的消息。

98. 发明申请

US20060072604A1 On-demand reverse-link pilot transmission 有权
标题翻译：按需反向链路导频传输
公开(公告)号：US20060072604A1
公开(公告)日：2006-04-06
申请号：US11129636
申请日：2005-05-13
申请人： Arak Sutivong , Avneesh Agrawal , Alexei Gorokhov , Edward Teague
发明人： Arak Sutivong , Avneesh Agrawal , Alexei Gorokhov , Edward Teague
IPC分类号： H04J3/16
CPC分类号： H04W74/04 , H04W74/002
摘要： Pilots are transmitted on demand on a reverse link and used for channel estimation and data transmission on a forward link. A base station selects at least one terminal for on-demand pilot transmission on the reverse link. Each selected terminal is a candidate for receiving data transmission on the forward link. The base station assigns each selected terminal with a time-frequency allocation, which may be for a wideband pilot, a narrowband pilot, or some other type of pilot. The base station receives and processes on-demand pilot transmission from each selected terminal and derives a channel estimate for the terminal based on the received pilot transmission. The base station may schedule terminals for data transmission on the forward link based on the channel estimates for all selected terminals. The base station may also process data (e.g., perform beamforming or eigensteering) for transmission to each scheduled terminal based on its channel estimate.
摘要翻译：飞行员根据需要在反向链路上传输，用于前向链路上的信道估计和数据传输。基站在反向链路上选择至少一个用于按需导频发送的终端。每个选择的终端是用于在前向链路上接收数据传输的候选者。基站为每个选择的终端分配时间频率分配，其可以用于宽带导频，窄带导频或某种其他类型的导频。基站从每个所选终端接收并处理按需导频传输，并根据接收到的导频传输导出终端的信道估计。基站可以基于所有选择的终端的信道估计来安排在前向链路上进行数据传输的终端。基站还可以基于其信道估计来处理数据（例如，执行波束成形或本征导向）以传输到每个调度的终端。

99. 发明申请

US20060014499A1 Multiple modulation schemes in single rate layering wireless communication systems 有权
公开(公告)号：US20060014499A1
公开(公告)日：2006-01-19
申请号：US11155204
申请日：2005-06-16
申请人： Alexei Gorokhov , Avneesh Agrawal , Dhananjay Gore , Tamer Kadous
发明人： Alexei Gorokhov , Avneesh Agrawal , Dhananjay Gore , Tamer Kadous
IPC分类号： H04B1/02 , H04B1/66
CPC分类号： H04L1/005 , H04L1/0003 , H04L1/0041 , H04L1/06
摘要： A MIMO communication system is adapted to encode multiple data streams at the same adaptable rate. Accordingly, the set of all possible modulation/rate combinations to all modulations with common rates is decreased thus resulting in the reduction of the number of possible packet formats carrying the data streams. Rate prediction is made more error-resilient, in part, due to the averaging over all information rates. Furthermore, the signaling overhead of the packets is reduced. Therefore, the tradeoff between the desired transmission rate granularity on the one hand, and robustness/signaling overhead on the other hand, is controlled by adjusting the coding rate.

100. 发明授权

US08693405B2 SDMA resource management 有权
标题翻译： SDMA资源管理
公开(公告)号：US08693405B2
公开(公告)日：2014-04-08
申请号：US11261837
申请日：2005-10-27
申请人： Tingfang Ji , Dhananjay Ashok Gore , Alexei Gorokhov , Min Dong , Avneesh Agrawal
发明人： Tingfang Ji , Dhananjay Ashok Gore , Alexei Gorokhov , Min Dong , Avneesh Agrawal
IPC分类号： H04B7/00
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。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式