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51. 发明授权

US08874040B2 Methods and apparatus for successive interference cancellation based on rate capping in peer-to-peer networks 有权
标题翻译：基于对等网络中的速率上限的连续干扰消除的方法和装置
公开(公告)号：US08874040B2
公开(公告)日：2014-10-28
申请号：US12164372
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： H04W72/00 , H04W52/32 , H04W28/22 , H04W52/26 , H04W84/18 , H04W52/24 , H04W52/16 , H04W72/08 , H04W52/22
CPC分类号： H04W28/22 , H04W52/16 , H04W52/223 , H04W52/241 , H04W52/267 , H04W52/325 , H04W52/383 , H04W72/08 , 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 (SIC). The first receiver device receives a first transmission request from a first transmitter device indicating that the first transmitter device intends to transmit traffic to the first receiver device. Similarly, the first receiver device receives a second transmission request from an interferer second transmitter device. The first receiver device then determines a transmission rate cap for the interferer second transmitter device based on the signal strengths of the first and second transmission requests and sends it to the interferer second transmitter device. The transmission rate cap is a maximum rate at which the first receiver device can reliably decode traffic signals from the second transmitter device.
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（SIC）。第一接收机设备从第一发射机设备接收指示第一发射机设备旨在向第一接收机设备传输业务的第一传输请求。类似地，第一接收机设备从干扰源第二发射机设备接收第二传输请求。然后，第一接收机设备基于第一和第二传输请求的信号强度确定干扰源第二发射机设备的传输速率上限，并将其发送到干扰源第二发射机设备。传输速率上限是第一接收机设备可以可靠地解码来自第二发射机设备的业务信号的最大速率。

52. 发明授权

US08693336B2 Communications decision methods and apparatus 有权
标题翻译：通信决策方法和设备
公开(公告)号：US08693336B2
公开(公告)日：2014-04-08
申请号：US12267923
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： H04W28/24
摘要： Methods and apparatus for making communications decisions are described. In some embodiments, a method includes recovering a first quality of service level from a first transmission request signal directed to a second communications device, and making a decision whether or not to transmit traffic data to a third communications device based on the recovered first quality of service level. In other embodiments a method includes recovering a first quality of service level from a first transmission request signal, and making a decision whether or not to transmit a first transmission request response signal in response to a second transmission request signal based on the recovered first quality of service level. In some embodiments, the phase of the transmission request signal is used to communicate the quality of service level. The device transmitting the transmission request signal 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，一种方法包括从指向第二通信设备的第一传输请求信号恢复第一服务质量等级，以及基于恢复的第一质量来决定是否向第三通信设备发送业务数据服务水平。在其他实施例中，一种方法包括从第一传输请求信号恢复第一服务质量等级，并且基于恢复的第一质量判定是否响应于第二传输请求信号来发送第一传输请求响应信号服务水平。在一些实施例中，传输请求信号的相位用于传达服务质量水平。发送发送请求信号的装置也可以发送可用作相位参考信号的导频。

53. 发明授权

US08687479B2 Methods and apparatus for channel estimation and rate feedback in a peer to peer network 有权
标题翻译：对等网络中的信道估计和速率反馈的方法和装置
公开(公告)号：US08687479B2
公开(公告)日：2014-04-01
申请号：US12166675
申请日：2008-07-02
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： H04J11/00
CPC分类号： H04L25/0226 , H04B7/15542 , H04L1/0002 , H04L1/0023 , H04L1/20 , H04L5/0007 , H04L5/0033 , H04L5/0044 , H04L5/0048 , H04L5/006 , H04L25/0228 , H04L27/2647 , H04L47/10 , H04L47/14 , H04L47/263 , H04W28/12 , H04W72/02 , H04W72/085
摘要： Methods and apparatus for performing channel estimation and reporting back channel information or other information such as a suggested traffic transmission rate are described. A signal including a pilot signal of interest is received. Portions of the signal corresponding to the pilot signal are analyzed to determine if any of the portions, e.g., signal portions corresponding to individual tone symbols used to communicate the pilot signal, were subject to excessive interference, such as might be the result of collisions, rendering the signal portions unreliable. Signal sub-portions determined to be unreliable are excluded from a determination of the amount of pilot signal energy that was received. Signal interference is determined from a portion of the received signal on which the pilot signal was not transmitted. Channel information in the form of information and/or a suggested traffic rate may be reported back to the device which transmitted the pilot signal.
摘要翻译：描述用于执行信道估计和报告返回信道信息或诸如建议的业务传输速率的其他信息的方法和装置。接收包括感兴趣的导频信号的信号。分析对应于导频信号的信号的部分，以确定是否有任何部分，例如，对应于用于传送导频信号的各个音调符号的信号部分遭受过度干扰，例如可能是碰撞的结果，使信号部分不可靠。被确定为不可靠的信号子部分从接收到的导频信号能量的确定中排除。信号干扰是从不在其上传送导频信号的接收信号的一部分确定的。以信息形式和/或建议的业务速率的信道信息可以被报告回发送导频信号的设备。

54. 发明授权

US08340044B2 Apparatus and method of generating and maintaining orthogonal connection identifications (CIDs) for wireless networks 有权
公开(公告)号：US08340044B2
公开(公告)日：2012-12-25
申请号：US12146972
申请日：2008-06-26
申请人： Rajiv Laroia , Junyi Li , Xinzhou Wu , Saurabh Tavildar
发明人： Rajiv Laroia , Junyi Li , Xinzhou Wu , Saurabh Tavildar
IPC分类号： H04W4/00
CPC分类号： H04W72/02 , H04W48/12 , H04W68/00
摘要： A first device is configured to select and utilize a connection identifier (CID) for a peer-to-peer communication connection between the first device and a second device in a wireless communications network. The CID is selected from a predetermined set of a plurality of CIDs. Prior to selecting the connection identifier, the first device monitors a CID broadcast channel to determine whether the CID is being utilized by other nearby connections. If it is determined that the CID is being utilized by another connection in the proximity, a different (unused) CID is selected. A transmission request is transmitted to the second device using a first transmission resource unit within a traffic management channel slot, the first transmission resource unit being determined as a function of the selected CID. The first device transmits traffic data to the second device in a traffic channel slot corresponding to the traffic management channel slot.

55. 发明授权

US08144636B2 Methods for sending small packets in a peer-to-peer (P2P) network 有权
公开(公告)号：US08144636B2
公开(公告)日：2012-03-27
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： H04B7/00
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.

56. 发明申请

US20090232086A1 METHODS AND APPARATUS FOR ACQUIRING AND USING MULTIPLE CONNECTION IDENTIFIERS 有权
标题翻译：获取和使用多个连接标识符的方法和设备
公开(公告)号：US20090232086A1
公开(公告)日：2009-09-17
申请号：US12047741
申请日：2008-03-13
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
CPC分类号： H04W76/021 , H04W8/005 , H04W76/11 , H04W76/14 , H04W76/15 , H04W84/18
摘要： Methods and apparatus related to a peer to peer wireless communications system supporting the association of multiple connection identifiers with a single connection between a pair of wireless terminals are described. A differentiated quality of service is supported by assigning different numbers of connection identifiers to different connections. The number of connection identifiers assigned to a wireless terminal pair for a connection is a function of one of: data rate, priority information, and quality of service information. Being allocated a higher number of connection identifiers results in being allocated a higher number of traffic transmission request resources, thus increasing the likelihood that the connection is permitted to use a traffic transmission segment. The allocation of connection identifiers is performed in a distributed manner in which handshake signaling occurs between a wireless terminal pair seeking to establish a connection, e.g., as part of a multi-step paging scheme.
摘要翻译：描述了支持多个连接标识符与一对无线终端之间的单个连接的关联的对等无线通信系统相关的方法和装置。通过为不同的连接分配不同数量的连接标识符来支持差异化的服务质量。分配给用于连接的无线终端对的连接标识符的数量是数据速率，优先级信息和服务质量信息之一的函数。分配更多数量的连接标识符导致分配更多数量的业务传输请求资源，从而增加连接被允许使用业务传输段的可能性。连接标识符的分配以分布式方式执行，其中握手信号发生在寻求建立连接的无线终端对之间，例如作为多步寻呼方案的一部分。

57. 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。

58. 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。

59. 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。

60. 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。

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