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1. 发明授权

US08995356B2 Coding methods and apparatus for broadcast channels 有权
标题翻译：广播频道的编码方法和装置
公开(公告)号：US08995356B2
公开(公告)日：2015-03-31
申请号：US12640336
申请日：2009-12-17
申请人： Xinzhou Wu , Cyril Measson , Nilesh Khude , Junyi Li
发明人： Xinzhou Wu , Cyril Measson , Nilesh Khude , Junyi Li
IPC分类号： H04W4/00 , H04W28/02 , H04L1/00
CPC分类号： H04W28/02 , H04L1/0009 , H04L1/0025 , H04L1/0028 , H04L2001/0092
摘要： Methods and apparatus related to selecting and/or using different coding methods for a broadcast channel are described. The coding method to be used is selected as a function of an estimated level of congestion. Various methods and apparatus are well suited for use in peer to peer wireless communications systems including broadcast peer discovery channels. A wireless communications device, e.g., a mobile terminal supporting peer to peer signaling, detects peer discovery signals from other devices and estimates a level of congestion. The wireless communications device selects one of a plurality of alternative coding methods as a function of the estimated level of congestion. Two different coding methods which may be used, in some embodiments, vary in at least one of: coding rate, convolution code used, and amount of resources used. The wireless device transmits information indicating the selected coding method and coded peer discovery data in accordance with the selected coding method.
摘要翻译：描述了与广播频道的选择和/或使用不同的编码方法有关的方法和装置。选择要使用的编码方法作为估计的拥塞水平的函数。各种方法和装置非常适用于包括广播对等体发现信道在内的对等无线通信系统。诸如支持对等信令的移动终端的无线通信设备检测来自其他设备的对等体发现信号并估计拥塞程度。无线通信设备根据估计的拥塞水平来选择多种替代编码方法之一。在一些实施例中可以使用的两种不同的编码方法在以下至少之一中变化：编码率，使用的卷积码和所使用的资源量。无线设备根据所选择的编码方法发送指示所选择的编码方法和编码对等体发现数据的信息。

2. 发明申请

US20110087768A1 CODING METHODS AND APPARATUS FOR BROADCAST CHANNELS 有权
标题翻译：广播通道的编码方法和装置
公开(公告)号：US20110087768A1
公开(公告)日：2011-04-14
申请号：US12640336
申请日：2009-12-17
申请人： Xinzhou Wu , Cyril Measson , Nilesh Khude , Junyi Li
发明人： Xinzhou Wu , Cyril Measson , Nilesh Khude , Junyi Li
IPC分类号： G06F15/16
CPC分类号： H04W28/02 , H04L1/0009 , H04L1/0025 , H04L1/0028 , H04L2001/0092
摘要： Methods and apparatus related to selecting and/or using different coding methods for a broadcast channel are described. The coding method to be used is selected as a function of an estimated level of congestion. Various methods and apparatus are well suited for use in peer to peer wireless communications systems including broadcast peer discovery channels. A wireless communications device, e.g., a mobile terminal supporting peer to peer signaling, detects peer discovery signals from other devices and estimates a level of congestion. The wireless communications device selects one of a plurality of alternative coding methods as a function of the estimated level of congestion. Two different coding methods which may be used, in some embodiments, vary in at least one of: coding rate, convolution code used, and amount of resources used. The wireless device transmits information indicating the selected coding method and coded peer discovery data in accordance with the selected coding method.
摘要翻译：描述了与广播频道的选择和/或使用不同的编码方法有关的方法和装置。选择要使用的编码方法作为估计的拥塞水平的函数。各种方法和装置非常适用于包括广播对等体发现信道在内的对等无线通信系统。诸如支持对等信令的移动终端的无线通信设备检测来自其他设备的对等体发现信号并估计拥塞程度。无线通信设备根据估计的拥塞水平来选择多种替代编码方法之一。在一些实施例中可以使用的两种不同的编码方法在以下至少之一中变化：编码率，使用的卷积码和所使用的资源量。无线设备根据所选择的编码方法发送指示所选择的编码方法和编码对等体发现数据的信息。

3. 发明授权

US08331488B2 Methods and apparatus for communicating information using non-coherent and coherent modulation 失效
标题翻译：使用非相干和相干调制来传达信息的方法和装置
公开(公告)号：US08331488B2
公开(公告)日：2012-12-11
申请号：US12578251
申请日：2009-10-13
申请人： Cyril Measson , Alberto Vigato , Saurabh Tavildar , Junyi Li , Thomas Richardson , Xinzhou Wu
发明人： Cyril Measson , Alberto Vigato , Saurabh Tavildar , Junyi Li , Thomas Richardson , Xinzhou Wu
IPC分类号： H04L27/04
CPC分类号： H04L1/0075
摘要： Non-coherent modulation is used to communicate coding information via pilot signals using a first subset of resources, and coherent modulation is used to generate data signals. This allows for a stronger global code while keeping individual signaling complexity low. First and second communications devices communicate information using a set of communications resources. By performing non-coherent demodulation on pilot signals received on a first subset of the set of communications resources coding information is recovered. First and second channel estimates are generated from the pilot signals received on the first subset of the communications resources. Coherent demodulation is performed on data signals received on a second subset of the set of communications resources using the first and second channel estimates and the coding information to recover information communicated by the first communications device and to recover separate information communicated by the second communications device.
摘要翻译：非相干调制用于通过使用第一资源子集的导频信号来传送编码信息，并使用相干调制来产生数据信号。这允许更强的全局代码，同时保持单个信令复杂度较低。第一和第二通信设备使用一组通信资源来传送信息。通过对在该组通信资源的第一子集上接收的导频信号执行非相干解调，编码信息被恢复。从在通信资源的第一子集上接收的导频信号产生第一和第二信道估计。对使用第一和第二信道估计和编码信息的通信资源集合的第二子集上接收的数据信号执行相干解调，以恢复由第一通信设备传送的信息，并恢复由第二通信设备传送的单独信息。

4. 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。

5. 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。

6. 发明授权

US08325697B2 Methods and apparatus for selecting and transmitting pilots 失效
标题翻译：飞行员选择和发射的方法和装置
公开(公告)号：US08325697B2
公开(公告)日：2012-12-04
申请号：US12578245
申请日：2009-10-13
申请人： Xinzhou Wu , Junyi Li , Cyril Measson
发明人： Xinzhou Wu , Junyi Li , Cyril Measson
IPC分类号： H04W4/00
CPC分类号： H04L5/0048 , H04L5/0007 , H04L5/0044 , H04L5/006 , H04L27/2626
摘要： Sets of communications resources, e.g., sets of peer discovery resources, in a peer to peer communications system are used concurrently by multiple transmitting devices. The communications system supports a plurality of different pilot sequences. Multiple transmitting devices may transmit their signals on the same set of communications resources, but with different pilot sequences. This approach allows receiving devices to distinguish between multiple signal sources, e.g., wireless terminals, using a shared communications resource. A wireless communications device monitors a plurality of different sets of communications resources and selects, e.g., based on received energy levels, a set of communications resources from said plurality of different sets of communications resources to use for communication. The communications device further selects one of a plurality of different pilot sequences to use for said communication and transmits pilot signals using the selected pilot sequence and at least a portion of the selected set of communications resources.
摘要翻译：多个发送装置同时使用对等通信系统中的通信资源集合，例如对等体发现资源集合。通信系统支持多个不同的导频序列。多个发射设备可以在相同的一组通信资源上发送它们的信号，但是具有不同的导频序列。该方法允许接收设备使用共享通信资源来区分多个信号源，例如无线终端。无线通信设备监视多个不同的通信资源集合，并且例如基于接收到的能量级别选择来自所述多个不同的通信资源集合的一组通信资源以用于通信。通信设备还选择用于所述通信的多个不同导频序列中的一个，并使用所选择的导频序列和所选择的一组通信资源的至少一部分来发送导频信号。

7. 发明申请

US20110085620A1 METHODS AND APPARATUS FOR COMMUNICATING INFORMATION USING NON-COHERENT AND COHERENT MODULATION 失效
标题翻译：使用非相干和相关调制来传播信息的方法和装置
公开(公告)号：US20110085620A1
公开(公告)日：2011-04-14
申请号：US12578251
申请日：2009-10-13
申请人： Cyril Measson , Alberto Vigato , Saurabh Tavildar , Junyi Li , Thomas Richardson , Xinzhou Wu
发明人： Cyril Measson , Alberto Vigato , Saurabh Tavildar , Junyi Li , Thomas Richardson , Xinzhou Wu
IPC分类号： H04L27/00 , H04L27/06
CPC分类号： H04L1/0075
摘要： Non-coherent modulation is used to communicate coding information via pilot signals using a first subset of resources, and coherent modulation is used to generate data signals. This allows for a stronger global code while keeping individual signaling complexity low. First and second communications devices communicate information using a set of communications resources. By performing non-coherent demodulation on pilot signals received on a first subset of said set of communications resources coding information is recovered. First and second channel estimates are generated from the pilot signals received on the first subset of said communications resources. Coherent demodulation is performed on data signals received on a second subset of said set of communications resources using said first and second channel estimates and said coding information to recover information communicated by said first communications device and to recover separate information communicated by said second communications device.
摘要翻译：非相干调制用于通过使用第一资源子集的导频信号来传送编码信息，并使用相干调制来产生数据信号。这允许更强的全局代码，同时保持单个信令复杂度较低。第一和第二通信设备使用一组通信资源来传送信息。通过对在所述一组通信资源的第一子集上接收的导频信号执行非相干解调，编码信息被恢复。从在所述通信资源的第一子集上接收的导频信号产生第一和第二信道估计。对使用所述第一和第二信道估计和所述编码信息的所述通信资源集合的第二子集上接收的数据信号执行相干解调，以恢复由所述第一通信设备传送的信息并恢复由所述第二通信设备传送的单独信息。

8. 发明申请

US20110085453A1 METHODS AND APPARATUS FOR SELECTING AND TRANSMITTING PILOTS 失效
标题翻译：选择和发送飞机的方法和装置
公开(公告)号：US20110085453A1
公开(公告)日：2011-04-14
申请号：US12578245
申请日：2009-10-13
申请人： Xinzhou Wu , Junyi Li , Cyril Measson
发明人： Xinzhou Wu , Junyi Li , Cyril Measson
IPC分类号： H04W72/04 , H04L12/26
CPC分类号： H04L5/0048 , H04L5/0007 , H04L5/0044 , H04L5/006 , H04L27/2626
摘要： Sets of communications resources, e.g., sets of peer discovery resources, in a peer to peer communications system may be use concurrently by multiple transmitting devices. The communications system supports a plurality of different pilot sequences. Multiple transmitting devices may transmit their signals on the same set of communications resources, but with different pilot sequences. This approach allows receiving devices to distinguish between multiple signal sources, e.g., wireless terminals, using a shared communications resource. A wireless communications device monitors a plurality of different sets of communications resources and selects, e.g., based on received energy levels, a set of communications resources from said plurality of different sets of communications resources to use for communication. The communications device further selects one of a plurality of different pilot sequences to use for said communication and transmits pilot signals using the selected pilot sequence and at least a portion of the selected set of communications resources.
摘要翻译：通信资源的集合，例如，对等通信系统中的对等体发现资源集合可以由多个发送装置同时使用。通信系统支持多个不同的导频序列。多个发射设备可以在相同的一组通信资源上发送它们的信号，但是具有不同的导频序列。该方法允许接收设备使用共享通信资源来区分多个信号源，例如无线终端。无线通信设备监视多个不同的通信资源集合，并且例如基于接收到的能量级别选择来自所述多个不同的通信资源集合的一组通信资源以用于通信。通信设备还选择用于所述通信的多个不同导频序列中的一个，并使用所选择的导频序列和所选择的一组通信资源的至少一部分来发送导频信号。

9. 发明授权

US08514968B2 Methods and apparatus for encoding and transmitting mobile device location information 失效
标题翻译：用于编码和发送移动设备位置信息的方法和装置
公开(公告)号：US08514968B2
公开(公告)日：2013-08-20
申请号：US12875419
申请日：2010-09-03
申请人： Aleksandar Jovicic , Cyril Measson , Thomas Richardson , Junyi Li
发明人： Aleksandar Jovicic , Cyril Measson , Thomas Richardson , Junyi Li
IPC分类号： H04L27/00
CPC分类号： H04W64/00 , G01S5/0289 , H04W4/021 , H04W4/20 , H04W28/06
摘要： Methods and apparatus for communicating the location of a mobile wireless communications device are described. Codewords, e.g., values or sets of bits, are selected from a codebook mapping different codewords to corresponding pieces of location information. In a first approach location information is communicated by using codewords from different codebooks with the product, e.g., intersection of location information provided by the codewords, providing relatively detailed location information using relatively few bits. In a second approach user specific codebooks are defined for individual users. The codewords in the codebook corresponding to a particular user map to locations the individual specific user is likely to frequent. In another approach codewords are transmitted at different power levels and/or using different coding rates. Received codewords corresponding to a device may be used in combination to determine the location or refine the understanding of the device location.
摘要翻译：描述了用于传送移动无线通信设备的位置的方法和装置。代码字，例如值或位组，从将不同码字映射到对应的位置信息的码本中选择。在第一种方法中，通过使用来自具有产品的不同码本的码字来传送信息，例如由码字提供的位置信息的交集，使用相对较少的位提供相对详细的位置信息。在第二种方法中，为个人用户定义了用户特定的码本。与特定用户对应的码本中的码字映射到个体特定用户的位置可能频繁。在另一种方法中，码字以不同的功率电平和/或使用不同的编码速率被发送。可以组合使用与设备相对应的接收码字来确定位置或改善对设备位置的理解。

10. 发明申请

US20120249372A1 METHODS AND APPARATUS FOR TRIGGERING COOPERATIVE POSITIONING OR LEARNING IN A WIRELESS NETWORK 有权
标题翻译：用于在无线网络中触发合作定位或学习的方法和装置
公开(公告)号：US20120249372A1
公开(公告)日：2012-10-04
申请号：US13073840
申请日：2011-03-28
申请人： Aleksandar Jovicic , Junyi Li , Cyril Measson , Thomas Richardson
发明人： Aleksandar Jovicic , Junyi Li , Cyril Measson , Thomas Richardson
IPC分类号： G01S5/02
CPC分类号： G01S5/0289 , G01S1/042 , G01S5/0072 , G01S5/0221 , G01S5/0226 , G01S5/0242 , H04W4/02 , H04W8/005
摘要： One or more bits are used in peer discovery signals to signal a device's ability and/or willingness to participate in a cooperative manner with regard to one or more mobile device location determination related operations. In some embodiments, the one or more bits are located at predetermined locations within a header portion of a peer discovery signal. Different bits, in some embodiments, are associated with different specific cooperative location determination related operations. The peer discovery signal is transmitted, e.g., broadcast, periodically or on some predetermined basis by a mobile wireless communications device. In this manner, a device listening to the peer discovery signals can determine other devices' willingness to perform particular location discovery related operations with very little signaling overhead.
摘要翻译：在一个或多个移动设备位置确定相关操作中，在对等体发现信号中使用一个或多个比特来表示设备的能力和/或以协作方式参与的愿意。在一些实施例中，一个或多个比特位于对等体发现信号的报头部分内的预定位置。在一些实施例中，不同的位与不同的具体协作位置确定相关的操作相关联。通过移动无线通信设备周期性地或在某些预定的基础上发送对等体发现信号，例如广播。以这种方式，监听对等体发现信号的设备可以以非常少的信令开销来确定其他设备执行特定位置发现相关操作的意愿。

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