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21. 发明申请

US20100098032A1 LOCAL AND WIDE-AREA TRANSMISSIONS IN A WIRELESS BROADCAST NETWORK 有权
标题翻译：无线广播网络中的本地和宽带传输
公开(公告)号：US20100098032A1
公开(公告)日：2010-04-22
申请号：US12646520
申请日：2009-12-23
申请人： Rajiv Vijayan , Fuyun Ling , Gordon Kent Walker , Ramaswamy Murali , Ashok Mantravadi , Anand Subramaniam , Krishnamurthy Viswanathan
发明人： Rajiv Vijayan , Fuyun Ling , Gordon Kent Walker , Ramaswamy Murali , Ashok Mantravadi , Anand Subramaniam , Krishnamurthy Viswanathan
IPC分类号： H04J3/00 , H04L12/43
CPC分类号： H04L5/0041 , H04L5/0007 , H04L5/0044 , H04L5/0048 , H04L12/189 , H04W72/005
摘要： To broadcast different types of transmission having different tiers of coverage in a wireless broadcast network, each base station processes data for a wide-area transmission in accordance with a first mode (or coding and modulation scheme) to generate data symbols for the wide-area transmission and processes data for a local transmission in accordance with a second mode to generate data symbols for the local transmission. The first and second modes are selected based on the desired coverage for wide-area and local transmissions, respectively. The base station also generates pilots and overhead information for local and wide-area transmissions. The data, pilots, and overhead information for local and wide-area transmissions are multiplexed onto their transmission spans, which may be different sets of frequency subbands, different time segments, or different groups of subbands in different time segments. More than two different types of transmission may also be multiplexed and broadcast.
摘要翻译：为了在无线广播网络中广播具有不同层次的不同类型的传输，每个基站根据第一模式（或编码和调制方案）处理广域传输的数据，以产生广域的数据符号根据第二模式传输和处理用于本地传输的数据，以产生用于本地传输的数据符号。分别基于广域和本地传输的期望覆盖来选择第一和第二模式。基站还为本地和广域传输生成导频和开销信息。用于本地和广域传输的数据，导频和开销信息被复用到它们的传输跨度，其可以是不同组的频率子带，不同时间段或不同时间段中的不同子带组。多于两种不同类型的传输也可以被复用和广播。

22. 发明授权

US07660275B2 Local and wide-area transmissions in a wireless broadcast network 有权
标题翻译：无线广播网络中的本地和广域传输
公开(公告)号：US07660275B2
公开(公告)日：2010-02-09
申请号：US10968787
申请日：2004-10-18
申请人： Rajiv Vijayan , Fuyun Ling , Gordon Kent Walker , Ramaswamy Murali , Ashok Mantravadi , Anand Subramaniam , Krishnamurthy Viswanathan, legal representative
发明人： Rajiv Vijayan , Fuyun Ling , Gordon Kent Walker , Ramaswamy Murali , Ashok Mantravadi , Anand Subramaniam
IPC分类号： H04H20/71
CPC分类号： H04L5/0041 , H04L5/0007 , H04L5/0044 , H04L5/0048 , H04L12/189 , H04W72/005
摘要： To broadcast different types of transmission having different tiers of coverage in a wireless broadcast network, each base station processes data for a wide-area transmission in accordance with a first mode (or coding and modulation scheme) to generate data symbols for the wide-area transmission and processes data for a local transmission in accordance with a second mode to generate data symbols for the local transmission. The first and second modes are selected based on the desired coverage for wide-area and local transmissions, respectively. The base station also generates pilots and overhead information for local and wide-area transmissions. The data, pilots, and overhead information for local and wide-area transmissions are multiplexed onto their transmission spans, which may be different sets of frequency subbands, different time segments, or different groups of subbands in different time segments. More than two different types of transmission may also be multiplexed and broadcast.
摘要翻译：为了在无线广播网络中广播具有不同层次的不同类型的传输，每个基站根据第一模式（或编码和调制方案）处理广域传输的数据，以产生广域的数据符号根据第二模式传输和处理用于本地传输的数据，以产生用于本地传输的数据符号。分别基于广域和本地传输的期望覆盖来选择第一和第二模式。基站还为本地和广域传输生成导频和开销信息。用于本地和广域传输的数据，导频和开销信息被复用到它们的传输跨度，其可以是不同组的频率子带，不同时间段或不同时间段中的不同子带组。多于两种不同类型的传输也可以被复用和广播。

23. 发明申请

US20090175210A1 MULTIPLEXING AND TRANSMISSION OF MULTIPLE DATA STREAMS IN A WIRELESS MULTI-CARRIER COMMUNICATION SYSTEM 审中-公开
标题翻译：无线多载波通信系统中多路数据流的多路复用与传输
公开(公告)号：US20090175210A1
公开(公告)日：2009-07-09
申请号：US12180305
申请日：2008-07-25
申请人： Rajiv Vijayan , Aamod Khandekar , Fuyun Ling , Gordon Kent Walker , Ramaswamy Murali
发明人： Rajiv Vijayan , Aamod Khandekar , Fuyun Ling , Gordon Kent Walker , Ramaswamy Murali
IPC分类号： H04H20/71 , H04W72/04 , H04L27/28 , H04J11/00
CPC分类号： H04L5/0007 , H04L1/0065 , H04L1/0083 , H04L5/0039 , H04L5/0041 , H04L5/0044 , H04L5/0048 , H04L5/0064 , H04L5/0094
摘要： Techniques for multiplexing and transmitting multiple data streams are described. Transmission of the multiple data streams occurs in “super-frames”. Each super-frame has a predetermined time duration and is further divided into multiple (e.g., four) frames. Each data block for each data stream is outer encoded to generate a corresponding code block. Each code block is partitioned into multiple subblocks, and each data packet in each code block is inner encoded and modulated to generate modulation symbols for the packet. The multiple subblocks for each code block are transmitted in the multiple frames of the same super-frame, one subblock per frame. Each data stream is allocated a number of transmission units in each super-frame and is assigned specific transmission units to achieve efficient packing. A wireless device can select and receive individual data streams.
摘要翻译：描述用于复用和传输多个数据流的技术。多个数据流的传输发生在“超帧”中。每个超帧具有预定的持续时间并进一步分为多个（例如，四个）帧。每个数据流的每个数据块被外部编码以生成相应的代码块。每个码块被划分成多个子块，并且每个码块中的每个数据分组被内部编码和调制以产生分组的调制符号。每个码块的多个子块在相同超帧的多个帧中传送，每帧一个子块。每个数据流在每个超帧中被分配多个传输单元，并被分配特定的传输单元以实现有效的打包。无线设备可以选择和接收各个数据流。

24. 发明授权

US07221680B2 Multiplexing and transmission of multiple data streams in a wireless multi-carrier communication system 有权
标题翻译：在无线多载波通信系统中多路复用和传输多个数据流
公开(公告)号：US07221680B2
公开(公告)日：2007-05-22
申请号：US10932586
申请日：2004-09-01
申请人： Rajiv Vijayan , Aamod Khandekar , Fuyun Ling , Gordon Kent Walker , Ramaswamy Murali
发明人： Rajiv Vijayan , Aamod Khandekar , Fuyun Ling , Gordon Kent Walker , Ramaswamy Murali
IPC分类号： H04B7/216
CPC分类号： H04W52/0209 , H04B7/12 , H04L1/0057 , H04L1/0065 , H04L1/0071 , H04L1/0083 , H04L5/0007 , H04L5/0044 , H04L5/0048 , H04L5/0053 , H04L5/06 , H04L25/0224 , H04L27/2602 , H04N21/2383 , H04N21/4382 , H04N21/6112 , H04W4/06 , H04W28/06 , H04W72/04 , Y02D70/166 , Y02D70/168 , Y02D70/442
摘要： Techniques for multiplexing and transmitting multiple data streams are described. Transmission of the multiple data streams occurs in “super-frames”. Each super-frame has a predetermined time duration and is further divided into multiple (e.g., four) frames. Each data block for each data stream is outer encoded to generate a corresponding code block. Each code block is partitioned into multiple subblocks, and each data packet in each code block is inner encoded and modulated to generate modulation symbols for the packet. The multiple subblocks for each code block are transmitted in the multiple frames of the same super-frame, one subblock per frame. Each data stream is allocated a number of transmission units in each super-frame and is assigned specific transmission units to achieve efficient packing. A wireless device can select and receive individual data streams.
摘要翻译：描述用于复用和传输多个数据流的技术。多个数据流的传输发生在“超帧”中。每个超帧具有预定的持续时间并进一步分为多个（例如，四个）帧。每个数据流的每个数据块被外部编码以生成相应的代码块。每个码块被划分成多个子块，并且每个码块中的每个数据分组被内部编码和调制以产生分组的调制符号。每个码块的多个子块在相同超帧的多个帧中传送，每帧一个子块。每个数据流在每个超帧中被分配多个传输单元，并被分配特定的传输单元以实现有效的打包。无线设备可以选择和接收各个数据流。

25. 发明申请

US20090279471A1 LOCAL AND WIDE-AREA TRANSMISSIONS IN A WIRELESS BROADCAST NETWORK 有权
标题翻译：无线广播网络中的本地和宽带传输
公开(公告)号：US20090279471A1
公开(公告)日：2009-11-12
申请号：US12506055
申请日：2009-07-20
申请人： Rajiv Vijayan , Fuyun Ling , Gordon Kent Walker , Ramaaswamy Murali , Ashok Mantravadi , Anand Subramaniam , Krishnamurthy Viswanathan
发明人： Rajiv Vijayan , Fuyun Ling , Gordon Kent Walker , Ramaaswamy Murali , Ashok Mantravadi , Anand Subramaniam , Krishnamurthy Viswanathan
IPC分类号： H04H20/71 , H04L27/28
CPC分类号： H04L5/0041 , H04L5/0007 , H04L5/0044 , H04L5/0048 , H04L12/189 , H04W72/005
摘要： To broadcast different types of transmission having different tiers of coverage in a wireless broadcast network, each base station processes data for a wide-area transmission in accordance with a first mode (or coding and modulation scheme) to generate data symbols for the wide-area transmission and processes data for a local transmission in accordance with a second mode to generate data symbols for the local transmission. The first and second modes are selected based on the desired coverage for wide-area and local transmissions, respectively. The base station also generates pilots and overhead information for local and wide-area transmissions. The data, pilots, and overhead information for local and wide-area transmissions are multiplexed onto their transmission spans, which may be different sets of frequency subbands, different time segments, or different groups of subbands in different time segments. More than two different types of transmission may also be multiplexed and broadcast.
摘要翻译：为了在无线广播网络中广播具有不同层次的不同类型的传输，每个基站根据第一模式（或编码和调制方案）处理广域传输的数据，以产生广域的数据符号根据第二模式传输和处理用于本地传输的数据，以产生用于本地传输的数据符号。分别基于广域和本地传输的期望覆盖来选择第一和第二模式。基站还为本地和广域传输生成导频和开销信息。用于本地和广域传输的数据，导频和开销信息被复用到它们的传输跨度，其可以是不同组的频率子带，不同时间段或不同时间段中的不同子带组。多于两种不同类型的传输也可以被复用和广播。

26. 发明申请

US20080291860A1 MULTIPLEXING AND TRANSMISSION OF MULTIPLE DATA STREAMS IN A WIRELESS MULTI-CARRIER COMMUNICATION SYSTEM 有权
标题翻译：无线多载波通信系统中多路数据流的多路复用与传输
公开(公告)号：US20080291860A1
公开(公告)日：2008-11-27
申请号：US11751631
申请日：2007-05-21
申请人： Rajiv Vijayan , Aamod Khandekar , Fuyun Ling , Gordon Kent Walker , Ramaswamy Murali
发明人： Rajiv Vijayan , Aamod Khandekar , Fuyun Ling , Gordon Kent Walker , Ramaswamy Murali
IPC分类号： H04J3/24
CPC分类号： H04W52/0209 , H04B7/12 , H04L1/0057 , H04L1/0065 , H04L1/0071 , H04L1/0083 , H04L5/0007 , H04L5/0044 , H04L5/0048 , H04L5/0053 , H04L5/06 , H04L25/0224 , H04L27/2602 , H04N21/2383 , H04N21/4382 , H04N21/6112 , H04W4/06 , H04W28/06 , H04W72/04 , Y02D70/166 , Y02D70/168 , Y02D70/442
摘要： Techniques for multiplexing and transmitting multiple data streams are described. Transmission of the multiple data streams occurs in “super-frames”. Each super-frame has a predetermined time duration and is further divided into multiple (e.g., four) frames. Each data block for each data stream is outer encoded to generate a corresponding code block. Each code block is partitioned into multiple subblocks, and each data packet in each code block is inner encoded and modulated to generate modulation symbols for the packet. The multiple subblocks for each code block are transmitted in the multiple frames of the same super-frame, one subblock per frame. Each data stream is allocated a number of transmission units in each super-frame and is assigned specific transmission units to achieve efficient packing. A wireless device can select and receive individual data streams.
摘要翻译：描述用于复用和传输多个数据流的技术。多个数据流的传输发生在“超帧”中。每个超帧具有预定的持续时间并进一步分为多个（例如，四个）帧。每个数据流的每个数据块被外部编码以生成相应的代码块。每个码块被划分成多个子块，并且每个码块中的每个数据分组被内部编码和调制以产生分组的调制符号。每个码块的多个子块在相同超帧的多个帧中传送，每帧一个子块。每个数据流在每个超帧中被分配多个传输单元，并被分配特定的传输单元以实现有效的打包。无线设备可以选择和接收各个数据流。

27. 发明申请

US20090161776A1 SYSTEM AND METHOD FOR FREQUENCY DIVERSITY 有权
标题翻译：频域多样性的系统与方法
公开(公告)号：US20090161776A1
公开(公告)日：2009-06-25
申请号：US12179505
申请日：2008-07-24
申请人： Michael Mao Wang , Fuyung Ling , Murali Ramaswamy Chari , Rajiv Vijayan
发明人： Michael Mao Wang , Fuyung Ling , Murali Ramaswamy Chari , Rajiv Vijayan
IPC分类号： H04L27/28 , H04L27/00
CPC分类号： H04L5/0044 , H03M13/271 , H03M13/2957 , H03M13/31 , H04L1/0066 , H04L1/0071 , H04L5/0007 , H04L5/0042 , H04L5/0064 , H04L27/2602 , H04L27/2634
摘要： A system and method for frequency diversity uses interleaving in a wireless communication system utilizing orthogonal frequency division multiplexing (OFDM) with various FFT sizes. Subcarriers of one or more interlaces are interleaved in a bit reversal fashion and the one or more interlaces are interleaved.
摘要翻译：用于频率分集的系统和方法使用利用具有各种FFT大小的正交频分复用（OFDM）的无线通信系统中的交织。一个或多个交错的子载波以位反向方式进行交织，并且所述一个或多个交错交织。

28. 发明授权

US08194796B2 Methods and apparatus for transmitting layered and non-layered data via layered modulation 有权
标题翻译：用于通过分层调制发送分层和非分层数据的方法和装置
公开(公告)号：US08194796B2
公开(公告)日：2012-06-05
申请号：US12607879
申请日：2009-10-28
申请人： Bruce Collins , Rajeev Krishnamurthi , Murali Ramaswamy Chair , Shusheel Gautam , Rajiv Vijayan , Seong Taek Chung
发明人： Bruce Collins , Rajeev Krishnamurthi , Murali Ramaswamy Chair , Shusheel Gautam , Rajiv Vijayan , Seong Taek Chung
IPC分类号： H04L27/06
CPC分类号： H04L1/0065 , H04L1/0041 , H04L1/0045 , H04L1/0058 , H04L5/023 , H04L27/3488 , H04L2001/0098
摘要： A media access control (MAC) layer controller can manage base layer data and enhancement layer data in a layered modulation system. The MAC layer controller can process both base layer data and enhancement layer data and map the encoded symbols to a layered modulation constellation when both are present. If data for one of the layers terminates, then the MAC layer controller can generate and supply predetermined stuffing data to the layer lacking additional data. The MAC layer controller can send a control signal to the physical layer hardware to cause the hardware to map the layered signals having the stuffing data to a modified signal constellation. The MAC controller can also generate an overhead message that indicates the occurrence of the stuffing data. The receiver can receive the overhead message and can use the information to configure the receiver for the layered modulation constellation or the modified signal constellation.
摘要翻译：媒体访问控制（MAC）层控制器可以在分层调制系统中管理基层数据和增强层数据。当两者都存在时，MAC层控制器可以处理基本层数据和增强层数据两者并将编码符号映射到分层调制星座。如果其中一层的数据终止，则MAC层控制器可以生成并向缺少附加数据的层提供预定的填充数据。 MAC层控制器可以向物理层硬件发送控制信号，使得硬件将具有填充数据的分层信号映射到修改的信号星座。 MAC控制器还可以生成指示填充数据的发生的开销消息。接收机可以接收开销消息，并且可以使用该信息来配置用于分层调制星座或修改的信号星座的接收机。

29. 发明授权

US08223853B2 Method and apparatus for decoding data in a layered modulation system 有权
标题翻译：用于在分层调制系统中解码数据的方法和装置
公开(公告)号：US08223853B2
公开(公告)日：2012-07-17
申请号：US11329891
申请日：2006-01-10
申请人： Rajiv Vijayan , Seong Taek Chung , Thomas Sun
发明人： Rajiv Vijayan , Seong Taek Chung , Thomas Sun
IPC分类号： H04K1/10
CPC分类号： H04L27/3488 , H04L1/0045 , H04L1/005 , H04L1/0065 , H04L1/0066 , H04L1/007 , H04L27/2608 , H04L27/2626 , H04L27/2647 , H04L27/2649 , H04L2001/0098
摘要： A decoder for a layered modulation system can be configured to independently and concurrently decode each of a base and enhancement layer. The base layer decoder and enhancement layer decoder can be configured substantially in parallel and can each operate concurrently on the same received layered modulation symbol. Each of the base and enhancement layer decoders can be configured with a bit metric module that is configured to determine a signal quality metric based on the received symbol. In systems having turbo encoded data, the bit metric module can be configured to determine a log likelihood ratio. The ratio is based in part on a channel estimate and an energy ratio used in the layered modulation constellation.
摘要翻译：用于分层调制系统的解码器可以被配置为独立地并且解码每个基本和增强层。基本层解码器和增强层解码器可以基本并行配置，并且可以在相同的接收分层调制符号上同时操作。基本和增强层解码器中的每一个可以配置有位度量模块，其被配置为基于接收到的符号来确定信号质量度量。在具有turbo编码数据的系统中，比特量度模块可被配置为确定对数似然比。该比率部分地基于在分层调制星座中使用的信道估计和能量比。

30. 发明授权

US08005420B2 Method and apparatus for seamlessly switching reception between mutlimedia streams in a wireless communication system 有权
标题翻译：用于在无线通信系统中无缝切换多媒体流之间的接收的方法和装置
公开(公告)号：US08005420B2
公开(公告)日：2011-08-23
申请号：US11752291
申请日：2007-05-22
申请人： Ramaswamy Murali , Gordon Kent Walker , Rajiv Vijayan
发明人： Ramaswamy Murali , Gordon Kent Walker , Rajiv Vijayan
IPC分类号： H04H40/00
CPC分类号： H04N5/4401 , H04N5/50 , H04N21/41407 , H04N21/4345 , H04N21/4384 , H04N21/44222
摘要： Techniques to seamlessly switch reception between multimedia programs are described. For “continued decoding”, a wireless device continues to receive, decode, decompress, and (optionally) display a current program, even after a new program has been selected, until overhead information needed to decode the new program is received. After receiving the overhead information, the wireless device decodes the new program but continues to decompress the current program. The wireless device decompresses the new program after decoding this program. For “early decoding”, the wireless device receives a user input and identifies a program with potential for user selection. The identified program may be the one highlighted by the user input or a program anticipated to be selected based on the user input. The wireless device initiates decoding of the identified program, prior to its selection, so that the program can be decompressed and displayed earlier if it is subsequently selected.
摘要翻译：描述了在多媒体节目之间无缝切换接收的技术。对于“继续解码”，即使在选择了新的程序之后，无线设备继续接收，解码，解压缩和（可选地）显示当前程序，直到接收到解码新程序所需的开销信息。在接收到开销信息之后，无线设备解码新程序，但是继续解压缩当前程序。解码该程序后，无线设备解压缩新程序。对于“早期解码”，无线设备接收用户输入并识别具有用户选择潜力的节目。识别的程序可以是由用户输入或预期将基于用户输入选择的程序突出显示的程序。无线设备在其选择之前启动所识别的节目的解码，使得如果随后选择该节目，则可以更早地解压缩并显示节目。

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