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1. 发明申请

US20100067598A1 Method and System for LLR Buffer Reduction in a Wireless Communication Modem 有权
标题翻译：无线通信调制解调器中LLR缓冲区减少的方法和系统
公开(公告)号：US20100067598A1
公开(公告)日：2010-03-18
申请号：US12405649
申请日：2009-03-17
申请人： Hemanth Sampath , Avneesh Agrawal , Jeremy H. Lin
发明人： Hemanth Sampath , Avneesh Agrawal , Jeremy H. Lin
IPC分类号： H04L5/12 , H04L27/06
CPC分类号： H03M13/45 , H03M13/6588 , H04L1/0046 , H04L1/1819 , H04L1/1822 , H04L1/1835 , H04L1/1845 , H04L5/0007 , H04L25/067
摘要： A system involves a transmitting device (for example, a first wireless communication device) and a receiving device (for example, a second wireless communication device). In the receiving device, LLR (Log-Likelihood Ratio) values are stored into an LLR buffer. LLR bit width is adjusted as a function of packet size of an incoming transmission to reduce the LLR buffer size required and/or to prevent LLR buffer capacity from being exceeded. The receiver may use a higher performance demodulator in order to maintain performance despite smaller LLR bit width. In the transmitting device, encoder code rate is adjusted as a function of receiver LLR buffer capacity and packet size of the outgoing transmission such that receiver LLR buffer capacity is not exceeded. Any combination of receiver LLR bit width adjustment, demodulator selection, and encoder code rate adjustment can be practiced to reduce LLR buffer size required while maintaining performance.
摘要翻译：系统涉及发送设备（例如，第一无线通信设备）和接收设备（例如，第二无线通信设备）。在接收设备中，将LLR（对数似然比）值存储到LLR缓冲器中。根据输入传输的分组大小调整LLR比特宽度，以减少所需的LLR缓冲区大小和/或防止超出LLR缓冲区容量。接收机可以使用更高性能的解调器，以便尽管较小的LLR位宽度来保持性能。在发送设备中，根据接收机LLR缓冲器容量和输出传输的分组大小调节编码器码率，使得接收机LLR缓冲器容量不被超过。可以实现接收机LLR位宽度调整，解调器选择和编码器码率调整的任何组合，以在保持性能的同时减少所需的LLR缓冲区大小。

2. 发明授权

US08873671B2 Method and system for LLR buffer reduction in a wireless communication modem 有权
标题翻译：无线通信调制解调器中LLR缓冲区减少的方法和系统
公开(公告)号：US08873671B2
公开(公告)日：2014-10-28
申请号：US12405649
申请日：2009-03-17
申请人： Hemanth Sampath , Avneesh Agrawal , Jeremy H. Lin
发明人： Hemanth Sampath , Avneesh Agrawal , Jeremy H. Lin
IPC分类号： H04L27/00 , H04L1/00 , H03M13/00 , H04L25/06 , H03M13/45 , H04L5/00 , H04L1/18
CPC分类号： H03M13/45 , H03M13/6588 , H04L1/0046 , H04L1/1819 , H04L1/1822 , H04L1/1835 , H04L1/1845 , H04L5/0007 , H04L25/067
摘要： A system involves a transmitting device (for example, a first wireless communication device) and a receiving device (for example, a second wireless communication device). In the receiving device, LLR (Log-Likelihood Ratio) values are stored into an LLR buffer. LLR bit width is adjusted as a function of packet size of an incoming transmission to reduce the LLR buffer size required and/or to prevent LLR buffer capacity from being exceeded. The receiver may use a higher performance demodulator in order to maintain performance despite smaller LLR bit width. In the transmitting device, encoder code rate is adjusted as a function of receiver LLR buffer capacity and packet size of the outgoing transmission such that receiver LLR buffer capacity is not exceeded. Any combination of receiver LLR bit width adjustment, demodulator selection, and encoder code rate adjustment can be practiced to reduce LLR buffer size required while maintaining performance.
摘要翻译：系统涉及发送设备（例如，第一无线通信设备）和接收设备（例如，第二无线通信设备）。在接收设备中，将LLR（对数似然比）值存储到LLR缓冲器中。根据输入传输的分组大小调整LLR比特宽度，以减少所需的LLR缓冲区大小和/或防止超出LLR缓冲区容量。接收机可以使用更高性能的解调器，以便尽管较小的LLR位宽度来保持性能。在发送设备中，根据接收机LLR缓冲器容量和输出传输的分组大小调节编码器码率，使得接收机LLR缓冲器容量不被超过。可以实现接收机LLR位宽度调整，解调器选择和编码器码率调整的任何组合，以在保持性能的同时减少所需的LLR缓冲区大小。

3. 发明申请

US20130148557A1 METHOD AND APPARATUS FOR ENHANCED DISCOVERY IN PEER-TO-PEER NETWORKS BY SYNCHRONIZED DISCOVERY WAKE UP 审中-公开
标题翻译：通过同步发现唤醒在对等网络中增强发现的方法和装置
公开(公告)号：US20130148557A1
公开(公告)日：2013-06-13
申请号：US13494057
申请日：2012-06-12
申请人： Hemanth Sampath , Vincent Knowles Jones, IV , Avneesh Agrawal , Santosh Paul Abraham
发明人： Hemanth Sampath , Vincent Knowles Jones, IV , Avneesh Agrawal , Santosh Paul Abraham
IPC分类号： H04W52/02
CPC分类号： H04W52/0225 , H04W8/005 , H04W52/0219 , H04W52/0229 , H04W52/028 , Y02D70/1262 , Y02D70/142 , Y02D70/164 , Y02D70/168 , Y02D70/21 , Y02D70/22
摘要： Certain aspects of the present disclosure relate to a technique for enhanced discovery in peer-to-peer (P2P) wireless network by synchronized discovery wake up. A wireless node can first obtain information about one or more time instants. Then, the wireless node can wake up to discover one or more other wireless nodes for communication, wherein the wake up occurs at the one or more time instants synchronized with the one or more other wireless nodes. The one or more time instants can be updated according to location information of the wireless node.
摘要翻译：本公开的某些方面涉及通过同步发现唤醒在对等（P2P）无线网络中增强发现的技术。无线节点可以首先获得关于一个或多个时刻的信息。然后，无线节点可以唤醒以发现用于通信的一个或多个其他无线节点，其中唤醒发生在与一个或多个其他无线节点同步的一个或多个时刻。可以根据无线节点的位置信息更新一个或多个时刻。

4. 发明授权

US08842693B2 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：US08842693B2
公开(公告)日：2014-09-23
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： H04J3/22 , H04J13/00
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。

5. 发明申请

US20130148643A1 ENHANCED DISCOVERY PROCEDURES IN PEER-TO-PEER WIRELESS LOCAL AREA NETWORKS (WLANS) 审中-公开
公开(公告)号：US20130148643A1
公开(公告)日：2013-06-13
申请号：US13494522
申请日：2012-06-12
申请人： Santosh Paul Abraham , Hemanth Sampath , Vincent Knowles Jones, IV , Avneesh Agrawal , Junyi Li
发明人： Santosh Paul Abraham , Hemanth Sampath , Vincent Knowles Jones, IV , Avneesh Agrawal , Junyi Li
IPC分类号： H04W84/12
CPC分类号： H04W84/12 , H04W8/005 , H04W76/14 , Y02D70/1262 , Y02D70/142 , Y02D70/144 , Y02D70/164 , Y02D70/21 , Y02D70/22
摘要： Certain aspects of the present disclosure generally provide methods and apparatus for enhanced discovery procedures in peer-to-peer (P2P) wireless local area networks (WLANs). With these procedures, discovery duration may be decreased, battery power consumption may be reduced during discovery, provided services may be ascertained during the device discovery phase without performing a separate service discovery phase, and/or the discovery range may be extended in an effort to discover a greater number of devices.

6. 发明申请

US20130148642A1 ENHANCED DISCOVERY PROCEDURES IN PEER-TO-PEER WIRELESS LOCAL AREA NETWORKS (WLANS) 有权
标题翻译：同层无线局域网（WLANS）中的增强发现程序
公开(公告)号：US20130148642A1
公开(公告)日：2013-06-13
申请号：US13494498
申请日：2012-06-12
申请人： Santosh Paul Abraham , Hemanth Sampath , Vincent Knowles Jones, IV , Avneesh Agrawal , Junyi Li
发明人： Santosh Paul Abraham , Hemanth Sampath , Vincent Knowles Jones, IV , Avneesh Agrawal , Junyi Li
IPC分类号： H04W84/12
CPC分类号： H04W84/12 , H04W8/005 , H04W76/14 , Y02D70/1262 , Y02D70/142 , Y02D70/144 , Y02D70/164 , Y02D70/21 , Y02D70/22
摘要： Certain aspects of the present disclosure generally provide methods and apparatus for enhanced discovery procedures in peer-to-peer (P2P) wireless local area networks (WLANs). With these procedures, discovery duration may be decreased, battery power consumption may be reduced during discovery, provided services may be ascertained during the device discovery phase without performing a separate service discovery phase, and/or the discovery range may be extended in an effort to discover a greater number of devices.
摘要翻译：本公开的某些方面通常提供用于在对等（P2P）无线局域网（WLAN）中增强发现过程的方法和装置。通过这些程序，可以减少发现持续时间，在发现期间可以减少电池功率消耗，只要可以在设备发现阶段确定服务，而不执行单独的服务发现阶段，和/或可以扩展发现范围发现更多的设备。

7. 发明授权

US09001693B2 Enhanced discovery procedures in peer-to-peer wireless local area networks (WLANs) 有权
标题翻译：对等无线局域网（WLAN）中增强的发现过程
公开(公告)号：US09001693B2
公开(公告)日：2015-04-07
申请号：US13494498
申请日：2012-06-12
申请人： Santosh Paul Abraham , Hemanth Sampath , Vincent Knowles Jones, IV , Avneesh Agrawal , Junyi Li
发明人： Santosh Paul Abraham , Hemanth Sampath , Vincent Knowles Jones, IV , Avneesh Agrawal , Junyi Li
IPC分类号： H04L12/28 , H04W4/00 , G06F15/16 , H04W84/12 , H04W8/00 , H04W76/02
CPC分类号： H04W84/12 , H04W8/005 , H04W76/14 , Y02D70/1262 , Y02D70/142 , Y02D70/144 , Y02D70/164 , Y02D70/21 , Y02D70/22
摘要： Certain aspects of the present disclosure generally provide methods and apparatus for enhanced discovery procedures in peer-to-peer (P2P) wireless local area networks (WLANs). With these procedures, discovery duration may be decreased, battery power consumption may be reduced during discovery, provided services may be ascertained during the device discovery phase without performing a separate service discovery phase, and/or the discovery range may be extended in an effort to discover a greater number of devices.
摘要翻译：本公开的某些方面通常提供用于在对等（P2P）无线局域网（WLAN）中增强发现过程的方法和装置。通过这些程序，可以减少发现持续时间，在发现期间可以减少电池功率消耗，只要可以在设备发现阶段确定服务，而不执行单独的服务发现阶段，和/或可以扩展发现范围发现更多的设备。

8. 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。

9. 发明授权

US08365047B2 FEC code and code rate selection based on packet size 有权
公开(公告)号：US08365047B2
公开(公告)日：2013-01-29
申请号：US13330999
申请日：2011-12-20
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： H03M13/00
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.

10. 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。

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