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1. 发明授权

US09094164B2 Methods and apparatus to improve channel estimation in communication systems 有权
标题翻译：改善通信系统信道估计的方法和装置
公开(公告)号：US09094164B2
公开(公告)日：2015-07-28
申请号：US13448638
申请日：2012-04-17
申请人： Sundar Subramanian , Xinzhou Wu , Quan Geng , Cyril Measson , Thomas J. Richardson , Junyi Li
发明人： Sundar Subramanian , Xinzhou Wu , Quan Geng , Cyril Measson , Thomas J. Richardson , Junyi Li
IPC分类号： H04L5/00 , H04L1/00 , H04L27/26 , H04L25/02
CPC分类号： H04L5/0048 , H04L1/0042 , H04L1/0068 , H04L5/0007 , H04L25/0226 , H04L27/2613
摘要： A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus generates a codeword, determines at least one puncture to the codeword based on allowing a legacy receiver to decode the codeword without knowledge of the at least one puncture, replaces each of the at least one puncture with a pilot, and transmits the codeword. The apparatus may also generate an IEEE 802.11 codeword having pilots in a first set of subcarriers, and puncture the codeword with additional pilots unknown to a legacy receiver in a second set of subcarriers. Accordingly, when an original set of pilot symbols is insufficient or inappropriately placed in a resource structure, a codeword may be transmitted with a new pilot structure capable of being decoded by legacy receivers not aware of the new pilot structure.
摘要翻译：提供了一种用于无线通信的方法，装置和计算机程序产品。该装置产生码字，基于允许传统接收机在不知道至少一个穿孔的情况下对码字进行解码，确定至少一个穿刺码字，用导频代替至少一个穿孔中的每一个，并发送该码字。该装置还可以生成在第一组子载波中具有导频的IEEE 802.11码字，并且在第二组副载波中对传统接收机未知的附加导频进行穿孔。因此，当原始的导频符号集合不足或不适当地放置在资源结构中时，可以用能够被不知道新导频结构的传统接收机解码的新导频结构来发送码字。

2. 发明申请

US20130272443A1 METHODS AND APPARATUS TO IMPROVE CHANNEL ESTIMATION IN COMMUNICATION SYSTEMS 有权
标题翻译：提高通信系统通道估计的方法和设备
公开(公告)号：US20130272443A1
公开(公告)日：2013-10-17
申请号：US13448638
申请日：2012-04-17
申请人： Sundar Subramanian , Xinzhou Wu , Quan Geng , Cyril Measson , Thomas J. Richardson , Junyi Li
发明人： Sundar Subramanian , Xinzhou Wu , Quan Geng , Cyril Measson , Thomas J. Richardson , Junyi Li
IPC分类号： H04L27/28
CPC分类号： H04L5/0048 , H04L1/0042 , H04L1/0068 , H04L5/0007 , H04L25/0226 , H04L27/2613
摘要： A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus generates a codeword, determines at least one puncture to the codeword based on allowing a legacy receiver to decode the codeword without knowledge of the at least one puncture, replaces each of the at least one puncture with a pilot, and transmits the codeword. The apparatus may also generate an IEEE 802.11 codeword having pilots in a first set of subcarriers, and puncture the codeword with additional pilots unknown to a legacy receiver in a second set of subcarriers. Accordingly, when an original set of pilot symbols is insufficient or inappropriately placed in a resource structure, a codeword may be transmitted with a new pilot structure capable of being decoded by legacy receivers not aware of the new pilot structure.
摘要翻译：提供了一种用于无线通信的方法，装置和计算机程序产品。该装置产生码字，基于允许传统接收机在不知道至少一个穿孔的情况下对码字进行解码，确定至少一个穿刺码字，用导频代替至少一个穿孔中的每一个，并发送该码字。该装置还可以生成在第一组子载波中具有导频的IEEE 802.11码字，并且在第二组副载波中对传统接收机未知的附加导频进行穿孔。因此，当原始的导频符号集合不足或不适当地放置在资源结构中时，可以用能够被不知道新导频结构的传统接收机解码的新导频结构来发送码字。

3. 发明授权

US09025466B2 Methods and apparatus for facilitating channel access in a communication system 有权
标题翻译：用于促进通信系统中的信道接入的方法和装置
公开(公告)号：US09025466B2
公开(公告)日：2015-05-05
申请号：US13541984
申请日：2012-07-05
申请人： Ying Wang , Sundar Subramanian , Xinzhou Wu , Junyi Li , Thomas J. Richardson
发明人： Ying Wang , Sundar Subramanian , Xinzhou Wu , Junyi Li , Thomas J. Richardson
IPC分类号： H04Q7/28 , H04W24/00 , H04B17/00 , H04L12/26 , H04J3/14
CPC分类号： H04W24/00 , H04J3/14 , H04L5/0064 , H04L43/50 , H04W74/0808 , H04W74/0816 , H04W84/18
摘要： A transmission initiation interval timing structure is used in combination with a lower layer timing structure, e.g., physical layer timing structure. A device selects a subset of packet transmission initiation intervals and then limits initiation of packet transmission to those intervals thereby reducing the potential for collisions. Packet transmission may occur outside the initiation interval in which the transmission is initiated. In some embodiments, packet transmission length is intentionally limited to sizes which can be transmitted in a fraction of the amount of time the physical layer allows a single device to continuously transmit, e.g., in an amount of time which is equal to or less than the duration of a packet transmission initiation interval. This increases the probability that multiple devices will be able to successfully transmit small packets at short intervals on a regular basis even when carrier sensing techniques are used.
摘要翻译：传输启动间隔定时结构与较低层定时结构结合使用，例如物理层定时结构。设备选择分组传输启动间隔的子集，然后限制分组传输的开始到那些间隔，从而减少冲突的可能性。分组传输可能发生在传输启动的发起间隔之外。在一些实施例中，分组传输长度被有意地限制为可以在物理层允许单个设备连续发送的时间量的一小部分中传输的大小，例如，等于或小于分组传输启动间隔的持续时间。这增加了即使在使用载波感测技术的情况下，多个设备将能够以短时间间隔成功地发送小分组的概率。

4. 发明授权

US08798656B2 Methods and apparatus by which periodically broadcasting nodes can resolve contention for access to a smaller pool of broadcasting resources 有权
标题翻译：周期性广播节点可以解决争取访问较小的广播资源池的方法和装置
公开(公告)号：US08798656B2
公开(公告)日：2014-08-05
申请号：US13448174
申请日：2012-04-16
申请人： Ying Wang , Sundar Subramanian , Xinzhou Wu , Junyi Li , Thomas J. Richardson
发明人： Ying Wang , Sundar Subramanian , Xinzhou Wu , Junyi Li , Thomas J. Richardson
IPC分类号： H04W72/02
CPC分类号： H04W72/02 , H04W72/005 , H04W84/18
摘要： A method, a computer program product, and an apparatus for wireless communication are provided. The apparatus transmits broadcast information in a first broadcast resource from a first set of broadcast resources. In addition, the apparatus determines based on the broadcast information a need for a second broadcast resource from a second set of broadcast resources. Furthermore, the apparatus selects the second broadcast resource based on a priority associated with the first broadcast resource.
摘要翻译：提供了一种方法，计算机程序产品和用于无线通信的装置。该装置从第一组广播资源发送第一广播资源中的广播信息。此外，该装置基于广播信息，从第二组广播资源中确定需要第二广播资源。此外，设备基于与第一广播资源相关联的优先级来选择第二广播资源。

5. 发明申请

US20130176856A1 METHODS AND APPARATUS FOR FACILITATING CHANNEL ACCESS IN A COMMUNICATION SYSTEM 有权
标题翻译：在通信系统中促进通道访问的方法和装置
公开(公告)号：US20130176856A1
公开(公告)日：2013-07-11
申请号：US13541984
申请日：2012-07-05
申请人： Ying Wang , Sundar Subramanian , Xinzhou Wu , Junyi Li , Thomas J. Richardson
发明人： Ying Wang , Sundar Subramanian , Xinzhou Wu , Junyi Li , Thomas J. Richardson
IPC分类号： H04W74/08
CPC分类号： H04W24/00 , H04J3/14 , H04L5/0064 , H04L43/50 , H04W74/0808 , H04W74/0816 , H04W84/18
摘要： A transmission initiation interval timing structure is used in combination with a lower layer timing structure, e.g., physical layer timing structure. A device selects a subset of packet transmission initiation intervals and then limits initiation of packet transmission to those intervals thereby reducing the potential for collisions. Packet transmission may occur outside the initiation interval in which the transmission is initiated. In some embodiments, packet transmission length is intentionally limited to sizes which can be transmitted in a fraction of the amount of time the physical layer allows a single device to continuously transmit, e.g., in an amount of time which is equal to or less than the duration of a packet transmission initiation interval. This increases the probability that multiple devices will be able to successfully transmit small packets at short intervals on a regular basis even when carrier sensing techniques are used.
摘要翻译：传输启动间隔定时结构与较低层定时结构结合使用，例如物理层定时结构。设备选择分组传输启动间隔的子集，然后限制分组传输的开始到那些间隔，从而减少冲突的可能性。分组传输可能发生在传输启动的启动间隔之外。在一些实施例中，分组传输长度被有意地限制为可以在物理层允许单个设备连续发送的时间量的一小部分中传输的大小，例如，等于或小于分组传输启动间隔的持续时间。这增加了即使在使用载波感测技术的情况下，多个设备将能够以短时间间隔成功地发送小分组的概率。

6. 发明授权

US09842498B2 Road-traffic-based group, identifier, and resource selection in vehicular peer-to-peer networks 有权
公开(公告)号：US09842498B2
公开(公告)日：2017-12-12
申请号：US13323237
申请日：2011-12-12
申请人： Ying Wang , Xinzhou Wu , Sundar Subramanian , Junyi Li , Thomas J. Richardson
发明人： Ying Wang , Xinzhou Wu , Sundar Subramanian , Junyi Li , Thomas J. Richardson
IPC分类号： G06F19/00 , G08G1/0967
CPC分类号： G08G1/096791
摘要： A method, a computer program product, and an apparatus for wireless communication are provided. The apparatus adjusts a number of sets of identifiers in a plurality of sets of identifiers based on traffic information. In addition, the apparatus selects an identifier from a set of identifiers of the plurality of sets of identifiers based on the traffic information. Furthermore, the apparatus communicates using resources associated with the selected identifier. The traffic information may include at least one of direction of travel, map information, velocity, whether approaching an intersection, whether departing an intersection, location, a number of vehicles within a particular area, information from other vehicles, type of intersection, whether the intersection includes stop lights or stop signs, at least one computed value based on acquired traffic information, or information from other wireless devices.

7. 发明申请

US20130273951A1 METHODS AND APPARATUS BY WHICH PERIODICALLY BROADCASTING NODES CAN RESOLVE CONTENTION FOR ACCESS TO A SMALLER POOL OF BROADCASTING RESOURCES 有权
标题翻译：周期性广播节目的方法和装置可以解决访问广播广播资源池的内容
公开(公告)号：US20130273951A1
公开(公告)日：2013-10-17
申请号：US13448174
申请日：2012-04-16
申请人： Ying Wang , Sundar Subramanian , Xinzhou Wu , Junyi Li , Thomas J. Richardson
发明人： Ying Wang , Sundar Subramanian , Xinzhou Wu , Junyi Li , Thomas J. Richardson
IPC分类号： H04W72/02
CPC分类号： H04W72/02 , H04W72/005 , H04W84/18
摘要： A method, a computer program product, and an apparatus for wireless communication are provided. The apparatus transmits broadcast information in a first broadcast resource from a first set of broadcast resources. In addition, the apparatus determines based on the broadcast information a need for a second broadcast resource from a second set of broadcast resources. Furthermore, the apparatus selects the second broadcast resource based on a priority associated with the first broadcast resource.
摘要翻译：提供了一种方法，计算机程序产品和用于无线通信的装置。该装置从第一组广播资源发送第一广播资源中的广播信息。此外，该装置基于广播信息，从第二组广播资源中确定需要第二广播资源。此外，设备基于与第一广播资源相关联的优先级来选择第二广播资源。

8. 发明申请

US20130013181A1 ROAD-TRAFFIC-BASED GROUP, IDENTIFIER, AND RESOURCE SELECTION IN VEHICULAR PEER-TO-PEER NETWORKS 有权
标题翻译：基于道路交通的集团，标识和资源选择在同行对等网络
公开(公告)号：US20130013181A1
公开(公告)日：2013-01-10
申请号：US13323237
申请日：2011-12-12
申请人： Ying Wang , Xinzhou Wu , Sundar Subramanian , Junyi Li , Thomas J. Richardson
发明人： Ying Wang , Xinzhou Wu , Sundar Subramanian , Junyi Li , Thomas J. Richardson
IPC分类号： G08G1/00
CPC分类号： G08G1/096791
摘要： A method, a computer program product, and an apparatus for wireless communication are provided. The apparatus adjusts a number of sets of identifiers in a plurality of sets of identifiers based on traffic information. In addition, the apparatus selects an identifier from a set of identifiers of the plurality of sets of identifiers based on the traffic information. Furthermore, the apparatus communicates using resources associated with the selected identifier. The traffic information may include at least one of direction of travel, map information, velocity, whether approaching an intersection, whether departing an intersection, location, a number of vehicles within a particular area, information from other vehicles, type of intersection, whether the intersection includes stop lights or stop signs, at least one computed value based on acquired traffic information, or information from other wireless devices.
摘要翻译：提供了一种方法，计算机程序产品和用于无线通信的装置。该装置基于交通信息来调整多组标识符中的多组标识符。此外，该装置基于交通信息从多组标识符的一组标识符中选择一个标识符。此外，设备使用与所选择的标识符相关联的资源进行通信。交通信息可以包括行驶方向，地图信息，速度，是否接近交叉路口，离开交叉路口，位置，特定区域内的车辆数量，来自其他车辆的信息，交叉路口的类型中的至少一个，交点包括停车灯或停车标志，基于所获取的交通信息的至少一个计算值，或来自其他无线设备的信息。

9. 发明申请

US20130010774A1 SYNCHRONOUS TRANSMISSION METHODS AND APPARATUS 有权
标题翻译：同步传输方法和设备
公开(公告)号：US20130010774A1
公开(公告)日：2013-01-10
申请号：US13542106
申请日：2012-07-05
申请人： Sundar Subramanian , Shihuan Liu , Xinzhou Wu , Thomas J. Richardson , Junyi Li
发明人： Sundar Subramanian , Shihuan Liu , Xinzhou Wu , Thomas J. Richardson , Junyi Li
IPC分类号： H04W28/00
CPC分类号： H04W72/12 , H04L69/161 , H04W74/0808 , H04W74/0816 , H04W76/00
摘要： Methods and apparatus for use in a wireless system are described where initiation of packet transmission is constrained in accordance to control actual packet transmission in a manner that reduces contention and possible collisions beyond that provided by lower layer resource contention mechanisms, e.g., 802.11 carrier sensing and/or transmission back-off timing mechanisms. Through higher level, e.g., MAC constraints, on packet transmission initiation, an air interface which employs carrier sensing can be used and controlled in a manner which reduces collisions and interference in applications where small packets, e.g., packets which can be transmitted in a fraction of the maximum permitted transmission time. The methods allow small packets in such systems to be transmitted on a periodic or semi-periodic basis in many cases.
摘要翻译：描述了在无线系统中使用的方法和装置，其中分组传输的启动根据控制实际分组传输受到限制，其方式是减少竞争和可能的冲突超出由较低层资源争用机制提供的冲突，例如802.11载波检测和 /或传输回退定时机制。通过更高的级别，例如MAC约束，在分组传输发起时，采用载波侦听的空中接口可以以减少小分组（例如可以以分数传输的分组）的应用中的冲突和干扰的方式被使用和控制的最大允许传输时间。这些方法允许这种系统中的小分组在许多情况下以周期性或半周期性的方式传输。

10. 发明申请

US20130064089A1 METHODS AND APPARATUS FOR TRAFFIC CONTENTION RESOURCE ALLOCATION 有权
标题翻译：交通资源分配的方法和装置
公开(公告)号：US20130064089A1
公开(公告)日：2013-03-14
申请号：US13231417
申请日：2011-09-13
申请人： Xinzhou Wu , Thomas J. Richardson , Junyi Li , Sundar Subramanian , Nilesh Khude
发明人： Xinzhou Wu , Thomas J. Richardson , Junyi Li , Sundar Subramanian , Nilesh Khude
IPC分类号： H04W72/04 , H04W24/00
CPC分类号： H04W28/0289 , H04W74/08 , H04W84/18
摘要： Methods and apparatus for allocating traffic contention resource units in a wireless communications system in which decisions are made in a distributed manner are described. A wireless communications device, corresponding to a link, self allocates resource units for traffic contention. Decisions regarding initially acquiring resources, relinquishing acquired resources, and/or acquiring additional resources for traffic contention are based on detected levels of network congestion and/or detected changes in network congestion. A wireless communications device detects a level of network congestion and determines a number of resource units to acquire for traffic contention based on the detected level of network congestion.
摘要翻译：描述在以分布式方式进行决定的无线通信系统中分配业务竞争资源单元的方法和装置。对应于链路的无线通信设备自行分配用于流量争用的资源单元。关于初始获取资源，放弃获得的资源和/或获取用于流量争用的额外资源的决定基于网络拥塞的检测水平和/或检测到的网络拥塞变化。无线通信设备检测网络拥塞程度，并根据检测到的网络拥塞水平，确定获取用于流量争用的资源单元数量。

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