专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

31. 发明授权

US07434145B2 Extracting soft information in a block-coherent communication system 有权
标题翻译：在块相干通信系统中提取软信息
公开(公告)号：US07434145B2
公开(公告)日：2008-10-07
申请号：US10815413
申请日：2004-04-01
申请人： Hui Jin , Tom Richardson , Vladimir Novichkov
发明人： Hui Jin , Tom Richardson , Vladimir Novichkov
IPC分类号： H03M13/45
CPC分类号： H04L1/005 , H03M13/29 , H03M13/2957 , H03M13/31 , H03M13/3784 , H03M13/45 , H03M13/6325 , H04L1/0045 , H04L1/0065 , H04L1/0071
摘要： Data communication over a block-coherent channel in a communication system is described. Low-complexity demodulation techniques that allow good performance are described. A dwell, e.g., a set of block coherent symbols transmitted including a known symbol, e.g., a pseudo pilot symbol, are received, demodulated and decoded by a joint decoder/demodulator employing soft inputs, soft outputs, and interleaving of messages. Low-complexity SISO demodulator is suitable for processing pseudo-pilot modulated information corresponding to each of one or more dwells. The low-complexity method achieves good performance when turbo equalization is used. Some decoding and demodulation embodiments include independent phase estimates and updated independent phase estimates following the extrinsic principle to generate soft symbol values and soft bits.
摘要翻译：描述通信系统中的块相干信道的数据通信。描述了允许良好性能的低复杂度解调技术。通过采用软输入，软输出和消息交错的联合解码器/解调器来接收，解调和解码驻留，例如包括已知符号（例如，伪导频符号）的块的一致的块相干符号。低复杂度SISO解调器适用于处理对应于一个或多个住宅中的每一个的伪导频调制信息。当使用turbo均衡时，低复杂度方法实现了良好的性能。一些解码和解调实施例包括独立的相位估计和更新的独立相位估计之后，产生软符号值和软比特的外在原理。

32. 发明授权

US07405686B2 Methods and apparatus for implementing and/or using amplifiers and/or for performing various amplification related operations 失效
标题翻译：用于实现和/或使用放大器和/或执行各种放大相关操作的方法和装置
公开(公告)号：US07405686B2
公开(公告)日：2008-07-29
申请号：US11477149
申请日：2006-06-27
申请人： Rajiv Laroia , Tom Richardson , Frank A. Lane
发明人： Rajiv Laroia , Tom Richardson , Frank A. Lane
IPC分类号： H03M3/00 , H03M1/06
CPC分类号： H03F1/34 , H03F3/217 , H03M3/388 , H03M3/40 , H03M7/3006 , H03M7/3017 , H03M7/3028 , H03M7/3031 , H03M7/304
摘要： Methods and apparatus for implementing and/or using amplifiers and performing various amplification related operations are described. The methods are well suited for use with, but not limited to, switching type amplifiers. The methods and apparatus described herein allow for the use of switching amplifiers while reducing and/or compensating for distortions that the use of such amplifiers would normally create. The described methods and apparatus can be used alone or in combination with various novel signaling schemes which can make it easier to compensate for the non-ideal behavior of switching amplifiers in such a way as to enable practical application in wireless transmission and/or other applications.
摘要翻译：描述了用于实现和/或使用放大器并执行各种放大相关操作的方法和装置。这些方法非常适用于但不限于开关型放大器。本文描述的方法和装置允许使用开关放大器，同时减少和/或补偿通常使用这种放大器的失真。所描述的方法和装置可以单独使用或与各种新颖的信令方案组合使用，这可以使得更容易以这样的方式补偿开关放大器的非理想行为，使得无线传输和/或其他应用中的实际应用。

33. 发明申请

US20080014975A1 Methods and apparatus related to assignment in a wireless communications system 有权
标题翻译：与无线通信系统中的分配有关的方法和装置
公开(公告)号：US20080014975A1
公开(公告)日：2008-01-17
申请号：US11487217
申请日：2006-07-14
申请人： Hui Jin , Tom Richardson , Rajiv Laroia , Junyi Li
发明人： Hui Jin , Tom Richardson , Rajiv Laroia , Junyi Li
IPC分类号： H04B7/00
CPC分类号： H04W72/042 , H04W8/26
摘要： Methods and apparatus related to assignment in a wireless communications system are described. A mobile is assigned an identifier and a mask value, e.g., as part of a state transition message. The mobile uses the assigned identifier and/or the assigned mask value in determining whether assignments included in assignment messages, e.g., traffic channel assignment messages, are directed to the wireless terminal. Predetermined associations between assignment slots, assigned segments, and/or mask values are utilized to limit control signaling overhead. Different groups of segments are available for assignment to different wireless terminals as a function of mask values. Different types of assignment messages use different amounts of information bits to convey the assignment. Some types of assignments use a wireless terminal identifier, while other types of assignments use a wireless terminal identifier and a mask identifier. The mask identifier, e.g., a single bit, allows for selection between a subset of the potential masks used in the system.
摘要翻译：描述与无线通信系统中的分配相关的方法和装置。分配移动台的标识符和掩码值，例如，作为状态转换消息的一部分。在确定包括在分配消息中的分配（例如业务信道分配消息）是否被指向无线终端的情况下，移动站使用分配的标识符和/或分配的掩码值。使用分配时隙，分配段和/或掩码值之间的预定关联来限制控制信令开销。根据屏蔽值的不同，不同的片段组可用于分配给不同的无线终端。不同类型的分配消息使用不同数量的信息位来传送分配。一些类型的分配使用无线终端标识符，而其他类型的分配使用无线终端标识符和掩码标识符。掩模标识符，例如单个位，允许在系统中使用的潜在掩码的子集之间进行选择。

34. 发明申请

US20070274276A1 WIRELESS COMMUNICATION METHODS AND APPARATUS SUPPORTING WIRELESS TERMINAL MODE CONTROL SIGNALING 有权
标题翻译：无线通信方法和设备支持无线终端模式控制信令
公开(公告)号：US20070274276A1
公开(公告)日：2007-11-29
申请号：US11621990
申请日：2007-01-10
申请人： Rajiv Laroia , Frank Lane , Junyi Li , Tom Richardson
发明人： Rajiv Laroia , Frank Lane , Junyi Li , Tom Richardson
IPC分类号： H04Q7/24
CPC分类号： H04W40/244 , H04J3/0602 , H04L5/0016 , H04L5/0035 , H04L5/0048 , H04L27/2601 , H04L27/261 , H04W8/005 , H04W16/14 , H04W28/04 , H04W28/18 , H04W36/16 , H04W36/24 , H04W40/24 , H04W48/08 , H04W48/16 , H04W48/20 , H04W52/0229 , H04W52/04 , H04W72/02 , H04W76/14 , H04W84/042 , H04W84/18 , H04W88/02 , H04W88/04 , H04W88/06 , H04W88/10 , Y02D70/1222 , Y02D70/1224 , Y02D70/1242 , Y02D70/1262 , Y02D70/142 , Y02D70/144 , Y02D70/146 , Y02D70/162 , Y02D70/164 , Y02D70/168 , Y02D70/22 , Y02D70/23
摘要： A wireless terminal determines a desired mode of base station operation with regard to whether the base station is to function as a network access node or is to function in a peer to peer mode with regard to a frequency band, and communicates a change signal to the base station. Some change signals are request signals requesting a base station to dynamically reallocate spectrum usage, while other change signals are command signals ordering the base station to reallocate spectrum usage. Information indicating a level of authority corresponding to the change signals, in some embodiments, corresponds to one of a device identifier, a user identifier, and a priority level indicator. An exemplary command signal comes from a device used by a government agent with the authority to override spectrum usage.
摘要翻译：无线终端关于基站是否用作网络接入节点或者相对于频带在对等模式中起作用，确定基站操作的期望模式，并且将改变信号传送到基站。一些改变信号是请求信号来请求基站动态地重新分配频谱使用，而其它改变信号是命令信号来排序基站来重新分配频谱使用。在一些实施例中，指示对应于改变信号的权限级别的信息对应于设备标识符，用户标识符和优先级指示符之一。示例性命令信号来自政府代理使用的设备，其具有超越频谱使用的权限。

35. 发明申请

US20070211677A1 SUPPORT FOR WIDE AREA NETWORKS AND LOCAL AREA PEER-TO-PEER NETWORKS 有权
标题翻译：支持广域网和本地区对等网络
公开(公告)号：US20070211677A1
公开(公告)日：2007-09-13
申请号：US11621972
申请日：2007-01-10
申请人： Rajiv Laroia , Junyi Li , Tom Richardson , Xinzhou Wu , Aleksandar Jovicic
发明人： Rajiv Laroia , Junyi Li , Tom Richardson , Xinzhou Wu , Aleksandar Jovicic
IPC分类号： H04Q7/24
CPC分类号： H04W40/244 , H04J3/0602 , H04L5/0016 , H04L5/0035 , H04L5/0048 , H04L27/2601 , H04L27/261 , H04W8/005 , H04W16/14 , H04W28/04 , H04W28/18 , H04W36/16 , H04W36/24 , H04W40/24 , H04W48/08 , H04W48/16 , H04W48/20 , H04W52/0229 , H04W52/04 , H04W72/02 , H04W76/14 , H04W84/042 , H04W84/18 , H04W88/02 , H04W88/04 , H04W88/06 , H04W88/10 , Y02D70/1222 , Y02D70/1224 , Y02D70/1242 , Y02D70/1262 , Y02D70/142 , Y02D70/144 , Y02D70/146 , Y02D70/162 , Y02D70/164 , Y02D70/168 , Y02D70/22 , Y02D70/23
摘要： Systems and methodologies are described that facilitate sharing bandwidth between a wide area network and a local area peer-to-peer network. The peer-to-peer network may use an air interface technology that is similar to distinct from an air interface technology use din the wide area network. Moreover, the wide area network and the local area peer-to-peer network may utilize distinct sets of parameters. For example, if the wide area network and the peer-to-peer network use OFDM-based air interface technologies, parameters such as tone spacing, symbol time, cyclic prefix, and the like of the two networks may vary. Further, peer-to-peer parameters may be a function of parameters for the wide area network.
摘要翻译：描述了便于在广域网和局域对等网络之间共享带宽的系统和方法。对等网络可以使用与广域网中的空中接口技术不同的空中接口技术。此外，广域网和本地对等网络可以利用不同的参数集合。例如，如果广域网和对等网络使用基于OFDM的空中接口技术，则两个网络的诸如音调间隔，符号时间，循环前缀等参数可以变化。此外，对等参数可以是广域网的参数的函数。

36. 发明申请

US20070149137A1 Methods and apparatus for communicating control information 有权
标题翻译：传送控制信息的方法和装置
公开(公告)号：US20070149137A1
公开(公告)日：2007-06-28
申请号：US11486895
申请日：2006-07-14
申请人： Tom Richardson , Hui Jin , Junyi Li , Vladimir Parizhisky
发明人： Tom Richardson , Hui Jin , Junyi Li , Vladimir Parizhisky
IPC分类号： H04B1/00 , H04B7/00
CPC分类号： H04L27/2602 , H04L1/0004 , H04L27/2627 , H04W28/18 , H04W52/08 , H04W52/146 , H04W72/0413
摘要： In a first mode of dedicated control channel (DCCH) operation, a wireless terminal is allocated more segments than in a second mode. The wireless terminal uses different information bit to modulation symbol mapping in the different modes. On a per DCCH segment basis, the same number of modulation symbols are communicated in either mode but more information bits are conveyed in the second mode. Information bits for a DCCH segment are partitioned into two subsets. The two subsets are used to generate another set, each of the two subsets and the another set are input to the same mapping function to generate three equal size sets of modulation symbols which are transmitted via the DCCH segment. Uplink tone hopping is used such that one of the equal size sets of modulation symbols for the DCCH segment uses the same tone but a different set uses a different tone.
摘要翻译：在专用控制信道（DCCH）操作的第一模式中，与第二模式相比，无线终端被分配更多的分组。无线终端在不同模式下使用不同的信息比特来调制符号映射。在每个DCCH段的基础上，以任一模式传送相同数量的调制符号，但在第二模式中传送更多的信息位。 DCCH段的信息位被划分成两个子集。这两个子集用于生成另一集合，两个子集中的每一个和另一个集合被输入到相同的映射函数，以生成经由DCCH段发送的三个相等大小的调制符号集合。使用上行链路跳频使得用于DCCH段的相等大小的调制符号组之一使用相同的音调，但是不同的组使用不同的音调。

37. 发明授权

US07231557B2 Methods and apparatus for interleaving in a block-coherent communication system 有权
标题翻译：在块相干通信系统中交织的方法和装置
公开(公告)号：US07231557B2
公开(公告)日：2007-06-12
申请号：US10637844
申请日：2003-08-08
申请人： Hui Jin , Tom Richardson , Vladimir Novichkov
发明人： Hui Jin , Tom Richardson , Vladimir Novichkov
IPC分类号： H03M13/13 , H03M13/27
CPC分类号： H03M13/116 , H03M13/2757 , H03M13/2957 , H03M13/6331
摘要： Methods and apparatus for communication over a block-coherent communication system are described. The present invention is directed to methods of interleaving coded bits that are encoded by codes, e.g., LDPC codes, having graph structures largely comprised, e.g., of multiple identical copies of a much smaller graph.
摘要翻译：描述了通过块相干通信系统进行通信的方法和装置。本发明涉及交织由码（例如，LDPC码）编码的编码比特的方法，其具有主要由例如较小图的多个相同副本组成的图形结构。

38. 发明申请

US20060203772A1 Methods and apparatus for implementing and using a maximum rate option indicator 有权
标题翻译：实施和使用最大费率选项指标的方法和装置
公开(公告)号：US20060203772A1
公开(公告)日：2006-09-14
申请号：US11230305
申请日：2005-09-19
申请人： Rajiv Laroia , Hui Jin , Tom Richardson , Junyi Li
发明人： Rajiv Laroia , Hui Jin , Tom Richardson , Junyi Li
IPC分类号： H04Q7/00
CPC分类号： H04W28/22
摘要： A base station selects a maximum rate option indicator value for an uplink communications segment, e.g., uplink traffic channel segment, and transmits the selected indicator value, e.g., as part of the assignment message. The maximum rate option indicator value indicates to the wireless terminal a maximum allowed data rate option that the wireless terminal is permitted to use for the corresponding assigned uplink communications segment, the wireless terminal determining the actual uplink rate option used. Each uplink data rate option corresponds to: a number of information bits to be communicated in an uplink communication segment, a coding rate, and a modulation method. Some embodiments include multiple types of maximum uplink rate option indicators, e.g., a first type using a single bit and a second type using at least three bits. Different modulation methods are, in some embodiments, used for communicating the different types of maximum uplink rate option indicators.
摘要翻译：基站选择用于上行链路通信段（例如，上行链路业务信道段）的最大速率选项指示符值，并且例如作为分配消息的一部分来发送所选择的指示符值。最大速率选项指示符值向无线终端指示无线终端被允许用于相应的分配的上行链路通信段的最大允许数据速率选项，无线终端确定所使用的实际上行链路速率选项。每个上行链路数据速率选项对应于：在上行链路通信段中要传送的信息比特数，编码率和调制方法。一些实施例包括多种类型的最大上行链路速率选项指示符，例如使用单个位的第一类型，以及使用至少三位的第二类型。在一些实施例中，不同的调制方法用于传送不同类型的最大上行链路速率选项指示符。

39. 发明申请

US20060203765A1 Data rate methods and apparatus 有权
标题翻译：数据速率方法和设备
公开(公告)号：US20060203765A1
公开(公告)日：2006-09-14
申请号：US11230331
申请日：2005-09-19
申请人： Rajiv Laroia , Hui Jin , Tom Richardson , Junyi Li
发明人： Rajiv Laroia , Hui Jin , Tom Richardson , Junyi Li
IPC分类号： H04Q7/00
CPC分类号： H04W28/22
摘要： A wireless terminal receives an uplink traffic channel segment assignment including a maximum uplink rate option indicator. Each uplink rate option corresponds to a number of information bits, coding rate and modulation method. The maximum rate option indicator indicates the highest rate option that the wireless terminal is permitted to use when transmitting in the assigned traffic channel segment from the perspective of the base station. In some embodiments, the wireless terminal uses interference measurements to further quality, e.g., conditionally reduce, the maximum uplink rate option that may be used. Then, the wireless terminal selects an uplink rate option to use which is less than the determined allowed maximum uplink rate option, e.g., based on the amount of user data to communicate. The wireless terminal transmits data in the assigned uplink traffic channel segment in accordance with the wireless terminal selected uplink rate.
摘要翻译：无线终端接收包括最大上行链路速率选项指示符的上行业务信道段分配。每个上行速率选项对应于多个信息比特，编码率和调制方法。最大速率选项指示符指示从基站的角度在从分配的业务信道段中发送时允许无线终端使用的最高速率选项。在一些实施例中，无线终端使用干扰测量来进一步提高质量，例如有条件地减少可能使用的最大上行链路速率选项。然后，无线终端例如基于要进行通信的用户数据量，选择所使用的上行链路速率选项小于所确定的允许的最大上行链路速率选项。无线终端根据所选择的无线终端上行速率在所分配的上行业务信道段中发送数据。

40. 发明申请

US20060026486A1 Memory efficient LDPC decoding methods and apparatus 有权
公开(公告)号：US20060026486A1
公开(公告)日：2006-02-02
申请号：US10909753
申请日：2004-08-02
申请人： Tom Richardson , Vladimir Novichkov
发明人： Tom Richardson , Vladimir Novichkov
IPC分类号： H03M13/00
CPC分类号： H03M13/6362 , H03M13/1105 , H03M13/1111 , H03M13/1114 , H03M13/1117 , H03M13/1122 , H03M13/1137
摘要： Methods and apparatus for implementing memory efficient LDPC decodes are described. In accordance with the invention message information is stored in a compressed state for check node processing operations. The state for a check node is fully updated and then subject to an extraction process to generate check node to variable node messages. The signs of messages received from variable nodes may be stored by the check node processor module of the invention for use in message extraction. The check node processor can process messages in variable node order thereby allowing the variable node processor and check node processor to operate on messages in the same order reducing or eliminating the need to buffer and/or reorder messages passed between check nodes and variable nodes. Graph structures which allow check node processing on one graph iteration to proceed before the previous graph iteration has been completed are also described.

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