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91. 发明申请

US20090019183A1 METHODS AND APPARATUS FOR DATA EXCHANGE IN PEER TO PEER COMMUNICATIONS 有权
标题翻译：数据交换方式与设备对等通信
公开(公告)号：US20090019183A1
公开(公告)日：2009-01-15
申请号：US11874798
申请日：2007-10-18
申请人： Xinzhou Wu , Junyi Li , Saurabh Tavildar , Jay Kumar Sundararajan
发明人： Xinzhou Wu , Junyi Li , Saurabh Tavildar , Jay Kumar Sundararajan
IPC分类号： G06F15/16
CPC分类号： H04L5/0053 , H04L5/0007 , H04L5/0023 , H04L5/0083 , H04L27/2643 , H04N5/76
摘要： An exemplary wireless communications device comprises a processor coupled to a memory and a wireless communications interface. The processor is configured to transmit a first transmission symbol at a first time index from a first set of time indices, and to transmit a second transmission symbol at a second time index different from the first time index from the first set of time indices, a portion of the first transmission symbol and a portion of the second transmission symbol including the same data. The first set of time indices is associated with a first device ID and includes at least one time index not contained in a second set of time indices associated with a second device ID, and the second set includes at least one time index not contained in the first set.
摘要翻译：示例性无线通信设备包括耦合到存储器和无线通信接口的处理器。处理器被配置为从第一组时间索引在第一时间索引处发送第一传输符号，并且以与第一时间索引不同的第二时间索引从第一组时间索引发送第二传输符号，第一传输符号的部分和包括相同数据的第二传输符号的一部分。第一组时间索引与第一设备ID相关联，并且包括不包含在与第二设备ID相关联的第二组时间索引中的至少一个时间索引，并且第二组包括不包含在第二设备ID中的至少一个时间索引第一集

92. 发明申请

US20090017861A1 METHOD AND APPARATUS FOR POWER SCALING IN PEER-TO-PEER COMMUNICATIONS 有权
标题翻译：在对等通信中的功率放大的方法和装置
公开(公告)号：US20090017861A1
公开(公告)日：2009-01-15
申请号：US12142588
申请日：2008-06-19
申请人： Xinzhou Wu , Junyi Li , Rajiv Laroia , Saurabh Tavildar
发明人： Xinzhou Wu , Junyi Li , Rajiv Laroia , Saurabh Tavildar
IPC分类号： H04B7/00
CPC分类号： H04W52/46 , H04W52/246 , H04W52/325 , H04W52/383 , H04W72/1226 , H04W84/18
摘要： An ad hoc peer-to-peer network is provided in which a transmitter wireless terminal is configured to establish a peer-to-peer communication link with a receiver wireless terminal over a shared communication channel. The transmitter wireless terminal may scale its transmit power as a function of a channel gain for the communication channel between the transmitter and receiver wireless terminals. The scaled transmit power may be utilized by the transmitter and receiver wireless terminals to perform link scheduling over the communication channel. For instance, the scaled transmit power may be used by the transmitter wireless terminal to perform a transmitter yielding with other neighboring transmitter wireless terminals utilizing the shared communication channel. Similarly, the scaled transmit power may be used by the receiver wireless terminal to perform receiver yielding with other neighboring receiver wireless terminal utilizing the shared communication channel.
摘要翻译：提供了一种ad hoc对等网络，其中发射机无线终端被配置为通过共享通信信道与接收机无线终端建立点对点通信链路。发射机无线终端可以根据发射机和接收机无线终端之间的通信信道的信道增益来扩展其发射功率。发射机和接收机无线终端可以利用缩放的发射功率在通信信道上执行链路调度。例如，发射机无线终端可以使用缩放的发射功率来执行利用共享通信信道的其他相邻发射机无线终端的发射机。类似地，缩放的发射功率可以由接收机无线终端使用，以利用共享通信信道与其他相邻的接收机无线终端一起执行接收机产生。

93. 发明申请

US20090016317A1 METHODS AND APPARATUS FOR SUPPORTING GROUP COMMUNICATIONS UTILIZING DEVICE IDENTIFIERS 审中-公开
标题翻译：用于支持设备识别器的组通信的方法和装置
公开(公告)号：US20090016317A1
公开(公告)日：2009-01-15
申请号：US12166619
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： H04B7/212
CPC分类号： H04W72/10 , H04W4/08 , H04W84/18
摘要： Methods and apparatus related to group communications in a wireless communications system, e.g., a peer to peer wireless communications system, are described. Methods and apparatus directed to 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, are described. 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 in a decentralized manner. Various features and/or aspects are directed to associating group transmission request resources and/or request response resources with device identifiers as opposed to associating such resources with connection identifiers. This approach is well suited for large size groups of N members, where the number of the number of connections between members of the group is approximately N2. This approach provides for efficient resource utilization supporting group traffic signaling.
摘要翻译：描述了与无线通信系统中的组通信相关的方法和装置，例如对等无线通信系统。描述了针对封闭组的方法和装置，例如，其中组成员的数量在给定时间被固定并且对该组的一个或多个成员已知的那些。各种实施例非常适合于分散的对等无线网络，其包括多个单独的业务资源，例如业务时隙和/或业务段，其可以以分散的方式独立地调度。各种特征和/或方面涉及将组传输请求资源和/或请求响应资源与设备标识符相关联，而不是将这样的资源与连接标识符相关联。这种方法非常适合于N个成员的大型组，其中组成员之间的连接数量大约为N2。这种方法提供了有效的资源利用，支持组通信量信令。

94. 发明申请

US20090016295A1 CONTROL CHANNEL DESIGN TO SUPPORT ONE-TO-ONE, MANY-TO-ONE, AND ONE-TO-MANY PEER-TO-PEER COMMUNICATIONS 失效
标题翻译：控制通道设计支持一对一，多对一和一对多同行通信
公开(公告)号：US20090016295A1
公开(公告)日：2009-01-15
申请号：US12169080
申请日：2008-07-08
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： H04Q7/00 , H04Q7/20
CPC分类号： H04L5/0007 , H04L5/0044 , H04L5/0053 , H04L5/0062 , H04L5/0091 , H04W72/082 , H04W76/11 , H04W76/14 , H04W84/18 , H04W92/18
摘要： A protocol is provided that facilitates downlink concurrent peer-to-peer communications (within a time slot or traffic slot) between one device and many terminals as well as uplink concurrent peer-to-peer communications (within a time slot or traffic slot) between a plurality of terminals and one device. The concurrent peer-to-peer communications may take place within an ad hoc network of devices. To facilitate such operation, a time-frequency structure is provided within a control channel that allows the device and terminals to identify the peer-to-peer connections. This time-frequency structure also allows terminals to identify other sibling terminals that have a connection with the same device, thereby allowing to more efficiently performing interference mitigation. That is, sibling peer-to-peer connections with the same device may be treated different from other non-related peer-to-peer connects for purposes of interference mitigation in a wireless network.
摘要翻译：提供了一种协议，其有助于一个设备与许多终端之间的下行链路并发对等通信（在时隙或业务时隙内）以及上行链路并发对等通信（在时隙或业务时隙内）多个终端和一个设备。并发的对等通信可以在设备的自组织网络中进行。为了促进这种操作，在控制信道内提供时间 - 频率结构，允许设备和终端识别对等连接。该时频结构还允许终端识别与同一设备具有连接的其他兄弟终端，从而允许更有效地执行干扰减轻。也就是说，与无线网络中的干扰减轻的目的可以将与同一设备的同级对等连接对待与其他非相关对等连接不同。

95. 发明申请

US20090016287A1 METHODS FOR SENDING SMALL PACKETS IN A PEER-TO-PEER (P2P) NETWORK 有权
标题翻译：在对等（P2P）网络中发送小包的方法
公开(公告)号：US20090016287A1
公开(公告)日：2009-01-15
申请号：US12168679
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： H04Q7/20
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.
摘要翻译：提供了一种改进的机制，其有助于传送自组织对等网络内的小分组。对于控制信道内的接收机识别出小分组，使得在本地对等设备之间实现的干扰管理协议中可以考虑其较低的功率。在业务时隙中，发射机主动地对发射机功率进行备份，因为较小的分组将需要较低的信噪比。这将改善传输中每比特每信噪比功率密度的信号能量，并最大限度地减少对同一频谱中发生的其他无线通信的干扰。

96. 发明申请

US20090016272A1 METHODS FOR SENDING SMALL PACKETS IN A PEER-TO-PEER (P2P) NETWORK 失效
公开(公告)号：US20090016272A1
公开(公告)日：2009-01-15
申请号：US12168673
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： H04Q7/20
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.

97. 发明申请

US20090016250A1 CODING METHODS OF COMMUNICATING IDENTIFIERS IN PEER DISCOVERY IN A PEER-TO-PEER NETWORK 有权
公开(公告)号：US20090016250A1
公开(公告)日：2009-01-15
申请号：US11775799
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： H04W48/08 , H04W8/005 , H04W8/26 , H04W28/06 , H04W92/18
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).

98. 发明授权

US09668225B2 Methods and apparatus for active successive interference cancellation based on one rate feedback and probability adaptation in peer-to-peer networks 有权
公开(公告)号：US09668225B2
公开(公告)日：2017-05-30
申请号：US12164431
申请日：2008-06-30
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： H04B1/10 , H04W52/32 , H04W28/22 , H04W52/10
CPC分类号： H04W52/325 , H04W28/22 , H04W52/10
摘要： A first receiver device receives a first pilot signal from a first transmitter device and a second pilot signal from a second transmitter device. The second pilot signal indicates that the second transmitter device intends to transmit a second traffic signal. The first receiver device determines a transmission rate for the first transmitter device as a function of the received signal strength of the first pilot and a predicted amount of the total interference to be perceived by the first receiver device. The predicted amount of the total interference being determined as a function of a SIC success probability. The transmission rate is sent to the first transmitter device. The first receiver device predicts whether the second traffic signal can be decoded and subtracted before the first receiver device decodes the first traffic signal to be transmitted by the first transmitter device as a function of the SIC success probability.

99. 发明授权

US08855567B2 Methods and apparatus for successive interference cancellation based on two rate feedback in peer-to-peer networks 有权
标题翻译：基于对等网络中的两个速率反馈的连续干扰消除的方法和装置
公开(公告)号：US08855567B2
公开(公告)日：2014-10-07
申请号：US12164394
申请日：2008-06-30
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： H04W84/18 , H04L1/00 , H04B1/7107 , H04W28/22
CPC分类号： H04B1/71072 , H04L1/0003 , H04L1/0025 , H04L1/0048 , H04W28/22 , H04W84/18
摘要： In an ad hoc peer-to-peer communication network between wireless devices, a high priory first receiver device is configured to perform successive interference cancellation. A first pilot signal is received by the first receiver device from the first transmitter device. Similarly, a second pilot signal is received from a second transmitter device, the second pilot signal indicating that the second transmitter device intends to transmit a second traffic signal. The first receiver device determines a first and a second transmission rates for traffic transmissions from the first transmitter device. A control message is then transmitted by the first receiver device to the first transmitter device including the first and second transmission rates. Subsequently, the first receiver device wirelessly receives a traffic signal including a first traffic signal from the first transmitter device including a first and a second signal components generated from a first and a second codewords, respectively.
摘要翻译：在无线设备之间的自组织对等通信网络中，高级第一接收机设备被配置为执行连续的干扰消除。第一接收机设备从第一发射机设备接收第一导频信号。类似地，从第二发射机设备接收第二导频信号，第二导频信号指示第二发射机设备想要传输第二业务信号。第一接收机设备确定用于来自第一发射机设备的业务传输的第一和第二传输速率。然后，控制消息由第一接收机设备发送到包括第一和第二传输速率的第一发射机设备。随后，第一接收机设备无线地接收包括来自第一发射机设备的第一业务信号的业务信号，其包括分别从第一和第二码字产生的第一和第二信号分量。

100. 发明授权

US08848622B2 Methods and apparatus for improving power efficiency and latency of mobile devices using an external timing source 有权
标题翻译：使用外部定时源提高移动设备的功率效率和延迟的方法和装置
公开(公告)号：US08848622B2
公开(公告)日：2014-09-30
申请号：US12507567
申请日：2009-07-22
申请人： Junyi Li , Saurabh Tavildar , Aleksandar Jovicic , Thomas Richardson
发明人： Junyi Li , Saurabh Tavildar , Aleksandar Jovicic , Thomas Richardson
IPC分类号： H04W4/00 , H04W52/02 , H04W56/00 , H04W84/18
CPC分类号： H04W52/0229 , H04W56/0015 , H04W84/18 , Y02D70/142 , Y02D70/164 , Y02D70/168
摘要： Methods and apparatus for increasing power efficiency and decreasing latency of communication of a mobile device operating in an unlicensed spectrum using global timing data are disclosed. The method includes receiving, at the mobile device, the global timing data from an external timing source, the mobile device communicating in the unlicensed spectrum, obtaining, at the mobile device, a time from the global timing data, and determining, at the mobile device, a wake time to switch the mobile device from a sleep state to an active state based on the time obtained from the global timing data.
摘要翻译：公开了使用全局定时数据提高功率效率和减少在未许可频谱中工作的移动设备的通信延迟的方法和装置。该方法包括在移动设备处接收来自外部定时源的全球定时数据，移动设备在非许可频谱中进行通信，在移动设备处从全球定时数据获取时间，并在移动设备基于从全局定时数据获得的时间，唤醒时间将移动设备从休眠状态切换到活动状态。

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