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101. 发明授权

US08068530B2 Signal acquisition in a wireless communication system 有权
公开(公告)号：US08068530B2
公开(公告)日：2011-11-29
申请号：US11022519
申请日：2004-12-22
申请人： Aamod Khandekar , Avneesh Agrawal
发明人： Aamod Khandekar , Avneesh Agrawal
IPC分类号： H04B1/00
CPC分类号： H04L5/0048 , H04B1/7077 , H04B2201/70701 , H04B2201/70702 , H04L5/0026 , H04L25/0204 , H04L25/03866 , H04L27/2613 , H04L27/2657 , H04L27/2662 , H04L27/2675
摘要： Each base station transmits a TDM pilot 1 having multiple instances of a pilot-1 sequence generated with a PN1 sequence and a TDM pilot 2 having at least one instance of a pilot-2 sequence generated with a PN2 sequence. Each base station is assigned a specific PN2 sequence that uniquely identifies that base station. A terminal uses TDM pilot 1 to detect for the presence of a signal and uses TDM pilot 2 to identify base stations and obtain accurate timing. For signal detection, the terminal performs delayed correlation on received samples and determines whether a signal is present. If a signal is detected, the terminal performs direct correlation on the received samples with PN1 sequences for K1 different time offsets and identifies K2 strongest TDM pilot 1 instances. For time synchronization, the terminal performs direct correlation on the received samples with PN2 sequences to detect for TDM pilot 2.

102. 发明申请

US20110255518A9 Use of supplemental assignments to decrement resources 有权
标题翻译：使用补充任务来减少资源
公开(公告)号：US20110255518A9
公开(公告)日：2011-10-20
申请号：US11370639
申请日：2006-03-07
申请人： Avneesh Agrawal , Aamod Khandekar , Alexei Gorokhov , Edward Teague
发明人： Avneesh Agrawal , Aamod Khandekar , Alexei Gorokhov , Edward Teague
IPC分类号： H04B7/216
CPC分类号： H04W72/042 , H04L5/0044 , H04L5/0053 , H04L5/0096 , H04W72/0486
摘要： Systems and methodologies are described that facilitate dynamically supplementing or decrementing resource assignments to mobile devices in a wireless network environment without requiring transmission of replacement assignments. Supplemental assignments can be generated based on information related to mobile device need and resource availability. Moreover, resource assignments can be persisted for a mobile device.
摘要翻译：描述了促进在无线网络环境中动态地补充或递减对移动设备的资源分配的系统和方法，而不需要传输替换分配。可以根据与移动设备需求和资源可用性相关的信息生成补充分配。此外，可以为移动设备持续资源分配。

103. 发明申请

US20090149140A1 POWER CONTROL UTILIZING MULTIPLE RATE INTERFERENCE INDICATIONS 有权
标题翻译：功率控制使用多种速率干扰指示
公开(公告)号：US20090149140A1
公开(公告)日：2009-06-11
申请号：US11620030
申请日：2007-01-04
申请人： Mohammad J. Borran , Aamod Khandekar , Avneesh Agrawal , Tingfang Ji
发明人： Mohammad J. Borran , Aamod Khandekar , Avneesh Agrawal , Tingfang Ji
IPC分类号： H04B1/04
CPC分类号： H04W52/247 , H04W52/241 , H04W52/243 , H04W52/60 , Y02D70/10
摘要： Systems and methodologies are described that facilitate mitigation of interference in a wireless communication environment. Terminals can utilize interference information provided by neighboring sectors to adjust transmit power and reduce interference. Access points can provide two sets or types of interference information. The first type can be transmitted over a large coverage area, requiring significant overhead and limiting the transmission rate. Access points can also provide a second set or type of interference information directed at smaller coverage area, such as an area proximate to the edge of the supported sector. This second type of interference information can be utilized by terminals that include the access point within their active set. The second set of interference information can be provided at a higher rate than the first set due to decreased overhead requirements. Terminals can utilize both sets of interference information to adjust transmit power.
摘要翻译：描述了有助于减轻无线通信环境中的干扰的系统和方法。终端可以利用相邻扇区提供的干扰信息来调整发射功率并减少干扰。接入点可以提供两组或多种干扰信息。第一种类型可以在大的覆盖区域上传输，需要大量开销并限制传输速率。接入点还可以提供针对较小覆盖区域的第二组或干扰类型，例如靠近所支持扇区边缘的区域。这种第二类型的干扰信息可以由包括其活动集中的接入点的终端利用。由于降低的开销要求，可以以比第一组更高的速率提供第二组干扰信息。终端可以利用两组干扰信息来调整发射功率。

104. 发明申请

US20090075664A1 MULTIPLEXED BEACON SYMBOLS FOR A WIRELESS COMMUNICATION SYSTEM 审中-公开
标题翻译：用于无线通信系统的多路标志符号
公开(公告)号：US20090075664A1
公开(公告)日：2009-03-19
申请号：US12206528
申请日：2008-09-08
申请人： Ravi Palanki , Avneesh Agrawal , Aamod Khandekar
发明人： Ravi Palanki , Avneesh Agrawal , Aamod Khandekar
IPC分类号： H04W40/00
CPC分类号： H04L25/4902 , H04L5/0023 , H04L5/0044 , H04L5/0053 , H04L27/2601
摘要： Techniques for transmitting information using beacon symbols are described. A transmitter may map first information to at least one subcarrier in a first set of subcarriers, with the first information being conveyed by the position of the at least one subcarrier. The transmitter may map second information to one or more subcarriers in a second set of subcarriers. The second information may be conveyed by one or more modulation symbols sent on the one or more subcarriers. The transmitter may generate at least one beacon symbol having the first information mapped to the at least one subcarrier in the first set and the second information mapped to the one or more subcarriers in the second set. In one design, the transmitter may frequency division multiplex the first information with the second information. In another design, the transmitter may puncture the second information on the at least one subcarrier with the first information.
摘要翻译：描述了使用信标符号发送信息的技术。发射机可以将第一信息映射到第一组子载波中的至少一个子载波，其中第一信息由至少一个子载波的位置传送。发射机可以将第二信息映射到第二组子载波中的一个或多个子载波。第二信息可以由在一个或多个子载波上发送的一个或多个调制符号传送。发射机可以生成具有映射到第一组中的至少一个子载波的第一信息和映射到第二组中的一个或多个子载波的第二信息的至少一个信标符号。在一种设计中，发射机可以将第一信息与第二信息进行频分复用。在另一种设计中，发射机可以利用第一信息来对该至少一个子载波的第二信息进行穿孔。

105. 发明申请

US20080168332A1 FEC CODE AND CODE RATE SELECTION BASED ON PACKET SIZE 有权
标题翻译：基于分组大小的FEC码和码率选择
公开(公告)号：US20080168332A1
公开(公告)日：2008-07-10
申请号：US11943172
申请日：2007-11-20
申请人： Ravi Palanki , Jeremy H. Lin , Aamod Khandekar , Alexei Gorokhov , Avneesh Agrawal
发明人： Ravi Palanki , Jeremy H. Lin , Aamod Khandekar , Alexei Gorokhov , Avneesh Agrawal
IPC分类号： H03M13/05 , G06F11/10
CPC分类号： H04L1/0007 , H04L1/0009 , H04L1/0021 , H04L1/0042 , H04L1/1812 , H04L1/1822
摘要： Techniques for encoding and decoding data are described. In an aspect, multiple code rates for a forward error correction (FEC) code may be supported, and a suitable code rate may be selected based on packet size. A transmitter may obtain at least one threshold to use for code rate selection, determine a packet size to use for data transmission, and select a code rate from among the multiple code rates based on the packet size and the at least one threshold. In another aspect, multiple FEC codes of different types (e.g., Turbo, LDPC, and convolutional codes) may be supported, and a suitable FEC code may be selected based on packet size. The transmitter may obtain at least one threshold to use for FEC code selection and may select an FEC code from among the multiple FEC codes based on the packet size and the at least one threshold.
摘要翻译：描述用于编码和解码数据的技术。在一方面，可以支持用于前向纠错（FEC）码的多个码率，并且可以基于分组大小来选择合适的码率。发射机可以获得用于码率选择的至少一个阈值，确定用于数据传输的分组大小，并且基于分组大小和至少一个阈值从多个码率中选择码率。在另一方面，可以支持不同类型的多个FEC码（例如，Turbo，LDPC和卷积码），并且可以基于分组大小来选择合适的FEC码。发射机可以获得用于FEC码选择的至少一个阈值，并且可以基于分组大小和至少一个阈值从多个FEC码中选择FEC码。

106. 发明申请

US20070211668A1 Use of supplemental assignments to decrement resources 有权
标题翻译：使用补充任务来减少资源
公开(公告)号：US20070211668A1
公开(公告)日：2007-09-13
申请号：US11370639
申请日：2006-03-07
申请人： Avneesh Agrawal , Aamod Khandekar , Alexei Gorokhov , Edward Teague
发明人： Avneesh Agrawal , Aamod Khandekar , Alexei Gorokhov , Edward Teague
IPC分类号： H04B7/216
CPC分类号： H04W72/042 , H04L5/0044 , H04L5/0053 , H04L5/0096 , H04W72/0486
摘要： Systems and methodologies are described that facilitate dynamically supplementing or decrementing resource assignments to mobile devices in a wireless network environment without requiring transmission of replacement assignments. Supplemental assignments can be generated based on information related to mobile device need and resource availability. Moreover, resource assignments can be persisted for a mobile device.
摘要翻译：描述了促进在无线网络环境中动态地补充或递减对移动设备的资源分配的系统和方法，而不需要传输替换分配。可以根据与移动设备需求和资源可用性相关的信息生成补充分配。此外，可以为移动设备持续资源分配。

107. 发明申请

US20070097935A1 In-band rate control for an orthogonal frequency division multiple access communication system 审中-公开
标题翻译：用于正交频分多址通信系统的带内速率控制
公开(公告)号：US20070097935A1
公开(公告)日：2007-05-03
申请号：US11369466
申请日：2006-03-07
申请人： Alexei Gorokhov , Tingfang Ji , Aamod Khandekar , Avneesh Agrawal
发明人： Alexei Gorokhov , Tingfang Ji , Aamod Khandekar , Avneesh Agrawal
IPC分类号： H04Q7/24
CPC分类号： H04W28/22
摘要： Systems and methods are disclosed that facilitate dynamic reverse link rate control by an access terminal and in-band signaling of changes of the reverse link rate by the access terminal.
摘要翻译：公开了促进接入终端的动态反向链路速率控制和接入终端对反向链路速率变化的带内信令的系统和方法。

108. 发明申请

US20070097908A1 Scalable frequency band operation in wireless communication systems 有权
公开(公告)号：US20070097908A1
公开(公告)日：2007-05-03
申请号：US11261805
申请日：2005-10-27
申请人： Aamod Khandekar , Alexei Gorokhov , Avneesh Agrawal , Rajiv Vijayan , Edward Teague , Fatih Ulupinar
发明人： Aamod Khandekar , Alexei Gorokhov , Avneesh Agrawal , Rajiv Vijayan , Edward Teague , Fatih Ulupinar
IPC分类号： H04Q7/00 , H04B7/216
CPC分类号： H04L5/023 , H04L27/2602 , H04W48/12
摘要： To support mobile stations that are not capable of demodulating the entire bandwidth or that can be made to demodulate less than the entire bandwidth, a system, apparatus and method are provided to schedule users on less than all of the bandwidth. Further, certain users can be scheduled on more of the bandwidth than others.

109. 发明申请

US20070011550A1 Rank step-down for MIMO SCW design employing HARQ 有权
标题翻译：采用HARQ的MIMO SCW设计的等级降级
公开(公告)号：US20070011550A1
公开(公告)日：2007-01-11
申请号：US11441742
申请日：2006-05-25
申请人： Avneesh Agrawal , Aamod Khandekar , Hemanth Sampath , Tamer Kadous
发明人： Avneesh Agrawal , Aamod Khandekar , Hemanth Sampath , Tamer Kadous
IPC分类号： H04L1/00 , H03M13/00 , G08C25/00 , G06F11/00 , G06F11/30
CPC分类号： H04B7/0697 , H04L1/0001 , H04L1/0006 , H04L1/0026 , H04L1/1812 , H04L1/1893
摘要： Systems and methodologies are described that facilitate reducing rank (e.g., of a user device) as a number of transmissions there from increases. Such rank step-down can improve interference resistance and facilitate maintaining code rate despite transmission propagation. Additionally, rank step-down information can be encoded along with CQI information to generate a 5-bit CQI signal that can facilitate updating a user's rank upon each CQI transmission (e.g., approximately every 5 ms). The described systems and/or methods can be employed in a single code word (SCW) wireless communication environment with a hybrid automatic request (HARQ) protocol.
摘要翻译：描述的系统和方法被简化为有助于减少等级（例如，用户设备），因为其中的传输数量增加。这种排序降低可以改善抗干扰性，并且有助于保持代码率，尽管传输传播。此外，等级降级信息可以与CQI信息一起编码，以产生可以有助于在每次CQI传输（例如，大约每5ms）更新用户的等级的5比特CQI信号。所描述的系统和/或方法可以用于具有混合自动请求（HARQ）协议的单个码字（SCW）无线通信环境中。

110. 发明申请

US20060133533A1 Method and apparatus for using multiple modulation schemes for a single packet 有权
标题翻译：用于单个分组的多个调制方案的方法和装置
公开(公告)号：US20060133533A1
公开(公告)日：2006-06-22
申请号：US11022538
申请日：2004-12-22
申请人： Aamod Khandekar , Avneesh Agrawal
发明人： Aamod Khandekar , Avneesh Agrawal
IPC分类号： H04L27/18 , H04L27/06
CPC分类号： H04L1/0003 , H04L1/0009 , H04L1/0025 , H04L1/0054 , H04L1/1671 , H04L1/1819 , H04L1/1845 , H04L1/1861 , H04L1/1893 , Y02D50/10
摘要： Techniques for using multiple modulation schemes for a single packet are described. Each data packet is processed and transmitted in up to T blocks, where T>1. Multiple modulation schemes are used for the T blocks to achieve good performance. A transmitter encodes a data packet to generate code bits. The transmitter then forms a block of code bits with the code bits generated for the packet, determines the modulation scheme to use for the block (e.g., based on a mode/rate selected for the packet), maps the code bits for the block based on the modulation scheme to obtain data symbols, and processes and transmits the block of data symbols to a receiver. The transmitter generates and transmits another block in similar manner until the data packet is decoded correctly or all T blocks have been transmitted. The receiver performs the complementary processing to receive and decode the packet.
摘要翻译：描述了对于单个分组使用多个调制方案的技术。每个数据包被处理并传输到最多T个块，其中T> 1。多个调制方案用于T块以实现良好的性能。发射机对数据包进行编码以产生码位。然后，发射机形成具有为分组生成的码位的码位块，确定用于块的调制方案（例如，基于为分组选择的模式/速率），将基于块的码位映射在调制方案中获得数据符号，并且处理并将数据符号块发送到接收机。发射机以类似的方式生成和发送另一个块，直到数据分组被正确解码或者所有T块已被发送。接收机执行补充处理以接收和解码分组。

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