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31. 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。

32. 发明申请

US20100118733A1 METHODS AND APPARATUS SUPPORTING ADAPTIVE DECENTRALIZED TRAFFIC SCHEDULING FOR WIRELESS COMMUNICATIONS 有权
标题翻译：支持无线通信自适应分散交通调度的方法和装置
公开(公告)号：US20100118733A1
公开(公告)日：2010-05-13
申请号：US12268175
申请日：2008-11-10
申请人： Xinzhou Wu , Junyi Li , Sanjay Shakkottai , Rajiv Laroia , Saurabh Tavildar , Thomas Richardson , Jay Kumar Sundararajan
发明人： Xinzhou Wu , Junyi Li , Sanjay Shakkottai , Rajiv Laroia , Saurabh Tavildar , Thomas Richardson , Jay Kumar Sundararajan
IPC分类号： H04L12/28 , H04W4/00
CPC分类号： H04W52/265 , H04W52/343
摘要： Methods and apparatus relating to scheduling of air link resources, e.g., traffic segments, in wireless communications are described. Various described methods and apparatus are well suited to wireless peer to peer networks in which traffic scheduling is decentralized, e.g. an ad hoc peer to peer network. A first wireless terminal receives a transmission request and quality of service information from a second wireless terminal corresponding to a connection. The first wireless terminal decides not to receiver yield, determines a request response transmission power level as a function of the received quality of service information, and transmits, at the determined power level, a generated request response signal. By controllably adjusting the transmission power level of a request response, transmitter yielding decisions of lower priority links are impacted, since lower priority links measure and use received power level information corresponding to request responses of higher priority links in their transmitter yielding decisions.
摘要翻译：描述了与无线通信中的空中链路资源（例如业务段）的调度有关的方法和装置。各种描述的方法和装置非常适合于其中业务调度被分散的无线对等网络，例如，一个特别的对等网络。第一无线终端从对应于连接的第二无线终端接收传输请求和服务质量信息。第一无线终端决定不接收收益，确定作为接收到的服务质量信息的函数的请求响应发送功率电平，并且以所确定的功率电平发送生成的请求响应信号。通过可控地调整请求响应的发送功率电平，由于较低优先级的链路测量和使用对应于其发射机产生决定中的较高优先级链路的请求响应的接收功率电平信息，所以影响较低优先级链路的发射机发射决定。

33. 发明申请

US20100118702A1 METHODS AND APPARATUS SUPPORTING ADAPTIVE DECENTRALIZED TRAFFIC SCHEDULING INCLUDING A DYNAMIC TRANSMITTER YIELDING THRESHOLD 有权
标题翻译：支持自适应分布式交通调度的方法和装置，包括动态变送器接线阈值
公开(公告)号：US20100118702A1
公开(公告)日：2010-05-13
申请号：US12268208
申请日：2008-11-10
申请人： Xinzhou Wu , Junyi Li , Sanjay Shakkottai , Rajiv Laroia , Saurabh Tavildar , Thomas Richardson , Jay Kumar Sundararajan
发明人： Xinzhou Wu , Junyi Li , Sanjay Shakkottai , Rajiv Laroia , Saurabh Tavildar , Thomas Richardson , Jay Kumar Sundararajan
IPC分类号： H04J1/16
CPC分类号： H04W72/1231
摘要： Methods and apparatus relating to scheduling of air link resources, e.g., traffic segments, in a wireless communications system are described. Various described methods and apparatus are well suited to wireless peer to peer networks in which traffic scheduling is decentralized, e.g. an ad hoc peer to peer network. An individual wireless terminal corresponding to a peer to peer connection which desires to transmit traffic signals make transmitter yielding decisions on a traffic slot by traffic slot basis. The transmitter yielding decision, in some embodiments, includes comparing a link quality estimate corresponding to a higher priority link intending to use the same traffic segment concurrently, to a dynamically generated transmitter yielding threshold. The dynamically generated transmitter yielding threshold is determined based on at least one of: quality of service information corresponding to its own link and historical link quality information corresponding to the higher priority link.
摘要翻译：描述与无线通信系统中的空中链路资源（例如业务段）的调度有关的方法和装置。各种描述的方法和装置非常适合于其中业务调度被分散的无线对等网络，例如，一个特别的对等网络。对应于对等连接的单个无线终端，其期望发送业务信号使得业务时隙上的业务时隙基础上的发射机能够做出决定。在一些实施例中，发射机产生决定包括将对应于意图将同一业务段使用相同业务段的较高优先级链路的链路质量估计与动态生成的发射机产生阈值相比较。基于与其自身链路相对应的服务质量信息和对应于较高优先级链路的历史链路质量信息中的至少一个来确定动态生成的发射机产生阈值。

34. 发明申请

US20100022190A1 METHOD AND APPARATUS FOR SUPPORTING MULTI-HOP COMMUNICATIONS IN A PEER TO PEER COMMUNICATION SYSTEM 有权
标题翻译：支持对等通信系统中的多通信通信的方法和装置
公开(公告)号：US20100022190A1
公开(公告)日：2010-01-28
申请号：US12178231
申请日：2008-07-23
申请人： Rajiv Laroia , Thomas Richardson , Junyi Li , Xinzhou Wu , Saurabh Tavildar , Vincent D. Park
发明人： Rajiv Laroia , Thomas Richardson , Junyi Li , Xinzhou Wu , Saurabh Tavildar , Vincent D. Park
IPC分类号： H04B17/00
CPC分类号： H04W40/12 , Y02D70/22 , Y02D70/34
摘要： Methods and apparatus for wireless communications in networks, e.g., regional ad hoc peer to peer networks, are described. A communications node, e.g., a third node monitors for wireless communications between other peer communication nodes, e.g., a first node and a second node, in its local vicinity. The third node determines from the monitored wireless communication an indication of link quality corresponding to a communication link between the communication nodes which are communicating or seeking to establish a communications link. The third node generates an estimate of a link quality for a communications link between itself and the first node. Based on the indication of link quality and generated estimate of link quality, the third node decides whether or not to send a signal indicating availability to relay communication between the first and second nodes. The third node, when acting as an intermediary node after indicating its availability to so act, may receive traffic data e.g., user data communicated in a peer to peer traffic segment, from the first node. The third node communicates the received traffic data to the second node by transmitting the traffic data.
摘要翻译：描述了用于网络中的无线通信的方法和装置，例如区域自组织对等网络。通信节点，例如第三节点监视在其本地附近的其他对等通信节点（例如，第一节点和第二节点）之间的无线通信。第三节点从监视的无线通信确定与正在通信或寻求建立通信链路的通信节点之间的通信链路相对应的链路质量的指示。第三节点产生对于其与第一节点之间的通信链路的链路质量的估计。基于链路质量的指示和链路质量的产生估计，第三节点决定是否发送指示第一和第二节点之间的中继通信的可用性的信号。第三节点在指示其可用性之后充当中间节点时可以从第一节点接收业务数据，例如在对等业务段中传送的用户数据。第三节点通过发送业务数据将接收到的业务数据传送到第二节点。

35. 发明申请

US20090232034A1 METHODS AND APPARATUS FOR WIRELESS COMMUNICATIONS INCLUDING DIRECT PAGING IN COMBINATION WITH HOPPED DATA SIGNALING 有权
标题翻译：无线通信的方法和设备，包括直接寻呼与组合数据信令的组合
公开(公告)号：US20090232034A1
公开(公告)日：2009-09-17
申请号：US12047713
申请日：2008-03-13
申请人： Junyi Li , Rajiv Laroia , Vincent D. Park , Thomas Richardson , Saurabh Tavildar , Xinzhou Wu
发明人： Junyi Li , Rajiv Laroia , Vincent D. Park , Thomas Richardson , Saurabh Tavildar , Xinzhou Wu
IPC分类号： H04B7/00
CPC分类号： H04L67/16 , H04L67/18 , H04W4/02 , H04W4/021 , H04W40/246 , H04W68/00 , Y02D30/40 , Y02D70/00 , Y02D70/20
摘要： Methods and apparatus for wireless communications in regional networks, e.g., ad hoc peer to peer networks, are described. Wireless communications devices transmit and monitor for presence indicator signals broadcast from other peer communications devices in its local vicinity. A wireless communications device maintains a list of discovered devices in its vicinity. A first wireless communications device transmits a paging signal directly over an airlink to a second communications device, which is on its list and to which it desires to send data units, e.g., user data in a peer to peer traffic segment. In response to a received paging response signal from the second device, the first device transmits data units, intended for the second device, to a third device, which acts as an intermediary node. The power level for the data unit signal is controlled to be lower than the power level used for the paging signal.
摘要翻译：描述了区域网络（例如，自组织对等网络）中的无线通信的方法和装置。无线通信设备发送和监视其本地附近的其他对等通信设备广播的存在指示符信号。无线通信设备维护其附近发现的设备的列表。第一无线通信设备通过空中链路将寻呼信号直接发送到第二通信设备，该第二通信设备位于其列表上并且希望向其发送数据单元（例如，对等业务段中的用户数据）。响应于来自第二设备的接收到的寻呼响应信号，第一设备将用于第二设备的数据单元发送到充当中间节点的第三设备。数据单元信号的功率电平被控制为低于用于寻呼信号的功率电平。

36. 发明申请

US20090016249A1 CODING METHODS OF COMMUNICATING IDENTIFIERS IN PEER DISCOVERY IN A PEER-TO-PEER NETWORK 失效
标题翻译：在同行对等网络中发现对等体的通信标识符的编码方法
公开(公告)号：US20090016249A1
公开(公告)日：2009-01-15
申请号：US11775793
申请日：2007-07-10
申请人： Junyi Li , Rajiv Laroia , Saurabh Tavildar , Thomas Richardson , Xinzhou WU , Leonard Grokop
发明人： Junyi Li , Rajiv Laroia , Saurabh Tavildar , Thomas Richardson , Xinzhou WU , Leonard Grokop
IPC分类号： H04B7/005
CPC分类号： H04L67/1061 , H04J3/0638 , H04L5/0007 , H04L5/0032 , H04L5/0037 , H04L12/18 , H04L67/1093 , H04W8/005 , H04W56/001 , H04W56/0015 , H04W84/18
摘要： Systems and methodologies are described that facilitate identifying peers based upon encoded signals during peer discovery in a peer to peer network. For example, direct signaling that partitions a time-frequency resource into a number of segments can be utilized to communicate an identifier within a peer discovery interval; thus, a particular segment selected for transmission can signal a portion of the identifier, while a remainder can be signaled based upon tones communicated within the selected segment. Moreover, a subset of symbols within the resource can be reserved (e.g., unused) to enable identifying and/or correcting timing offset. Further, signaling can be effectuated over a plurality of peer discovery intervals such that partial identifiers communicated during each of the peer discovery intervals can be linked (e.g., based upon overlapping bits and/or bloom filter information).
摘要翻译：描述了系统和方法，其便于在对等网络中的对等体发现期间基于编码信号来识别对等体。例如，可以利用将时间 - 频率资源分割成多个段的直接信令来在对等设备发现间隔内传送标识符; 因此，选择用于传输的特定片段可以发送标识符的一部分，而可以基于在所选择的段内通信的音调来发信号通知剩余部分。此外，可以保留资源内的符号子集（例如，未使用的）以使得能够识别和/或校正定时偏移。此外，可以在多个对等点发现间隔上实现信令，使得可以链接每个对等设备发现间隔期间通信的部分标识符（例如，基于重叠位和/或布隆过滤器信息）。

37. 发明授权

US08121097B2 Transmission with hopping for peer-peer communication 有权
标题翻译：用于对等通信的跳频传输
公开(公告)号：US08121097B2
公开(公告)日：2012-02-21
申请号：US12264661
申请日：2008-11-04
申请人： Junyi Li , Saurabh Tavildar , Thomas Richardson , Ying Wang , Aleksandar Jovicic
发明人： Junyi Li , Saurabh Tavildar , Thomas Richardson , Ying Wang , Aleksandar Jovicic
IPC分类号： H04J3/00 , H04B7/212
CPC分类号： H04W8/005 , H04B1/7143 , H04B2001/6908 , H04L5/0007 , H04L5/0032 , H04L5/0042 , H04W72/02 , H04W72/0446
摘要： Techniques for transmitting signals using time hopping or time and frequency hopping are described. In one design, a terminal selects different slots to use for transmission in multiple frames with time hopping. Each frame includes multiple slots, and each slot covers a particular time duration. The selected slots are at different time locations in the multiple frames. In another design, a terminal selects different resource units to use for transmission in multiple frames with time and frequency hopping. The selected resource units are at different time and frequency locations in the multiple frames. For both designs, the terminal sends a signal (e.g., a peer discovery signal) in the selected slots or resource units in the multiple frames. The terminal may detect for signals (e.g., peer discovery signals) from other terminals in slots not used for transmission by the terminal.
摘要翻译：描述了使用跳时或时间和跳频来发送信号的技术。在一种设计中，终端选择不同的时隙用于在具有时间跳跃的多个帧中进行传输。每个帧包括多个时隙，并且每个时隙覆盖特定的持续时间。所选择的时隙位于多个帧中的不同时间位置。在另一种设计中，终端选择不同的资源单元用于在具有时间和跳频的多个帧中进行传输。所选择的资源单元在多个帧中处于不同的时间和频率位置。对于这两种设计，终端在多个帧中的所选择的时隙或资源单元中发送信号（例如，对等体发现信号）。终端可以在不用于由终端发送的时隙中检测来自其他终端的信号（例如，对等体发现信号）。

38. 发明授权

US08694662B2 Method and apparatus for communicating transmission requests to members of a group and/or making group related transmission decisions 有权
标题翻译：用于向组的成员传送传输请求和/或使组相关的传输决定的方法和装置
公开(公告)号：US08694662B2
公开(公告)日：2014-04-08
申请号：US12166594
申请日：2008-07-02
申请人： Xinzhou Wu , Saurabh Tavildar , Junyi Li , Rajiv Laroia
发明人： Xinzhou Wu , Saurabh Tavildar , Junyi Li , Rajiv Laroia
IPC分类号： G06F15/16 , H04L1/00
CPC分类号： H04L12/1881 , H04L12/1886 , H04L12/189 , H04W4/08 , H04W72/10 , H04W84/18
摘要： Methods and apparatus supporting group communications in a peer to peer wireless network are described. Methods and apparatus are directed to implementations with closed groups, e.g., where the number of group members are fixed at a given time and known to one or more members of the group. Various embodiments are well suited to decentralized peer to peer wireless networks including a plurality of individual traffic resources, e.g., traffic slots and/or traffic segments, which may be independently scheduled. Approaches for implementing distributed scheduling for traffic air link resources which may carry group traffic signals and/or peer to peer traffic signals are described. Various aspects are directed to the transmitter side including: group traffic transmission request transmissions, reception of request response signaling, transmitter yielding decisions, group rate determination and/or group traffic data signaling. Other aspects are directed to the receiver side including: reception of group traffic transmission request signals, receiver yielding decisions, transmitting group request responses signals, and/or receiving group traffic signaling.
摘要翻译：描述了对等无线网络中支持组通信的方法和装置。方法和装置涉及具有封闭组的实现，例如，其中组成员的数量在给定时间是固定的并且对于该组的一个或多个成员而言是已知的。各种实施例非常适合于分散的对等无线网络，包括多个单独的业务资源，例如可以独立调度的业务时隙和/或业务段。描述了可能携带组交通信号和/或对等业务信号的用于业务空中链路资源的分布式调度的方法。各个方面涉及发射机侧，包括：组业务传输请求传输，请求响应信令的接收，发射机发射决定，组速率确定和/或组业务数据信令。其他方面针对接收机侧，包括：接收群组业务传输请求信号，接收机产生决定，发送组请求响应信号和/或接收群组业务信令。

39. 发明授权

US08520524B2 Methods and apparatus for making transmitter and/or receiver communications decisions 有权
标题翻译：用于进行发射机和/或接收机通信决策的方法和装置
公开(公告)号：US08520524B2
公开(公告)日：2013-08-27
申请号：US12267905
申请日：2008-11-10
申请人： Junyi Li , Rajiv Laroia , Saurabh Tavildar , Xinzhou Wu
发明人： Junyi Li , Rajiv Laroia , Saurabh Tavildar , Xinzhou Wu
IPC分类号： H04L12/26
CPC分类号： H04W72/1231 , H04L43/08 , H04W72/1278
摘要： Methods and apparatus for making communications decisions are described. In some embodiments, a method includes recovering a quality of service level from a transmission request response signal and making a decision whether or not to transmit traffic data based on the recovered quality of service level. In other embodiments a method includes recovering a first quality of service level from a first transmission request response signal which is in response to a first traffic transmission request signal, and making a decision, based on the recovered first quality of service level, whether or not to transmit a second transmission request response signal in response to a second traffic transmission request signal. In some embodiments, the phase of the transmission request response signal is used to communicate the quality of service level. The device transmitting the transmission request response may also transmit pilots which can be used as phase reference signals.
摘要翻译：描述通信决策的方法和装置。在一些实施例中，一种方法包括从传输请求响应信号中恢复服务质量水平，并基于恢复的服务质量水平决定是否传送业务数据。在其他实施例中，一种方法包括从响应于第一业务传输请求信号的第一传输请求响应信号恢复第一服务质量水平，并且基于恢复的第一服务质量水平做出决定响应于第二业务传输请求信号发送第二传输请求响应信号。在一些实施例中，传输请求响应信号的相位用于传达服务质量水平。发送发送请求响应的装置也可以发送可用作相位参考信号的导频。

40. 发明授权

US08259743B2 Methods for sending small packets in a peer-to-peer (P2P) network 失效
公开(公告)号：US08259743B2
公开(公告)日：2012-09-04
申请号：US12168662
申请日：2008-07-07
申请人： Junyi Li , Rajiv Laroia , Saurabh Tavildar , Xinzhou Wu
发明人： Junyi Li , Rajiv Laroia , Saurabh Tavildar , Xinzhou Wu
IPC分类号： H04L12/28
CPC分类号： H04L1/0002 , H04L1/0025 , Y02D70/10 , Y02D70/20
摘要： An improved mechanism is provided that facilitates transmission of small packets within an ad hoc peer-to-peer network. A small packet is identified to a receiver within a control channel so that its lower power can be considered in an interference management protocol implemented among local peer devices. In a traffic slot, a transmitter voluntarily backs down on the transmitter power as a smaller packet will require much lower signal-to-noise ratio. This will improve the signal energy per bit per noise power density for the transmission as well as minimize the interference caused to other wireless communications happening in the same spectrum.

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