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.

公开(公告)号：US20090010185A1

公开(公告)日：2009-01-08

申请号：US12111717

申请日：2008-04-29

申请人： Junyi Li ,  Rajiv Laroia ,  Xinzhou Wu

发明人： Junyi Li ,  Rajiv Laroia ,  Xinzhou Wu

IPC分类号： H04J3/00 ,  G08C17/00 ,  H04J1/00

CPC分类号： H04W52/383 ,  H04W92/18

摘要： Methods and apparatus for supporting peer to peer communications are described. A peer to peer communications device uses both wide area network (WAN) uplink and downlink communications air link resources for peer to peer signaling. During an uplink share mode of operation a peer to peer wireless terminal uses a wide area network uplink communications band to communicate peer to peer signals, and the peer to peer wireless terminal implements a first transmission power control function. During a downlink share mode of operation, the peer to peer wireless terminal uses a wide area network downlink communications band to communicate peer to peer signals, and the peer to peer wireless terminal implements a second transmission power control function. The second power control function is different from the first power control function.

摘要翻译： 描述了用于支持对等通信的方法和装置。 对等通信设备使用广域网（WAN）上行链路和下行链路通信空中链路资源进行对等信令。 在上行链路共享操作模式期间，对等无线终端使用广域网上行通信频带来传送对等信号，对等无线终端实现第一传输功率控制功能。 在下行链路共享操作模式下，对等无线终端使用广域网下行通信频带对等信息进行通信，对等无线终端实现第二传输功率控制功能。 第二功率控制功能与第一功率控制功能不同。

公开(公告)号：US09264907B2

公开(公告)日：2016-02-16

申请号：US12123266

申请日：2008-05-19

申请人： Rajiv Laroia ,  Junyi Li ,  Xinzhou Wu

发明人： Rajiv Laroia ,  Junyi Li ,  Xinzhou Wu

IPC分类号： H04B7/15 ,  H04W16/12 ,  H04W16/14

CPC分类号： H04W16/12 ,  H04W16/14

摘要： A method and system are provided that allows a wireless terminal to share an allocated frequency spectrum for communications over two different networks while mitigating cross interference. For wireless terminals equipped with a single antenna, interference mitigation may be achieved by allocating first communication channels to a first network and allocating second communication channels to a second network, wherein the second communication channels are allocated within one or more of the first communication channels. For wireless terminals having multiple antennas, interference mitigation may be achieved with two orthogonally polarized antennas, where each antenna is used for communications with a different network. Consequently, a wireless terminal having a channel allocation for communicating over the first wireless network may reuse the same channel allocation to establish a communication link with a second wireless terminal via a second wireless network using at least part of the channel allocation for the first wireless network.

摘要翻译： 提供了一种方法和系统，其允许无线终端共享用于通过两个不同网络进行通信的分配的频谱，同时减轻交叉干扰。 对于配备有单个天线的无线终端，可以通过将第一通信信道分配给第一网络并将第二通信信道分配给第二网络来实现干扰减轻，其中第二通信信道被分配在一个或多个第一通信信道内。 对于具有多个天线的无线终端，可以利用两个正交极化天线来实现干扰减轻，其中每个天线用于与不同网络的通信。 因此，具有用于在第一无线网络上进行通信的信道分配的无线终端可以使用第一无线网络的信道分配的至少一部分来重新使用相同的信道分配来经由第二无线网络与第二无线终端建立通信链路 。

公开(公告)号：US08902864B2

公开(公告)日：2014-12-02

申请号：US11621978

申请日：2007-01-10

申请人： Rajiv Laroia ,  Junyi Li ,  Xinzhou Wu

发明人： Rajiv Laroia ,  Junyi Li ,  Xinzhou Wu

IPC分类号： H04W4/00 ,  H04L27/26 ,  H04W8/00 ,  H04L5/00 ,  H04W72/02 ,  H04W88/10 ,  H04W36/16 ,  H04W52/02 ,  H04W16/14 ,  H04W48/20 ,  H04W40/24 ,  H04W84/04 ,  H04W28/18 ,  H04W48/08 ,  H04W88/02 ,  H04J3/06 ,  H04W88/04 ,  H04W28/04 ,  H04W88/06 ,  H04W48/16 ,  H04W52/04 ,  H04W84/18 ,  H04W36/24

CPC分类号： H04W40/244 ,  H04J3/0602 ,  H04L5/0016 ,  H04L5/0035 ,  H04L5/0048 ,  H04L27/2601 ,  H04L27/261 ,  H04W8/005 ,  H04W16/14 ,  H04W28/04 ,  H04W28/18 ,  H04W36/16 ,  H04W36/24 ,  H04W40/24 ,  H04W48/08 ,  H04W48/16 ,  H04W48/20 ,  H04W52/0229 ,  H04W52/04 ,  H04W72/02 ,  H04W76/14 ,  H04W84/042 ,  H04W84/18 ,  H04W88/02 ,  H04W88/04 ,  H04W88/06 ,  H04W88/10 ,  Y02D70/1222 ,  Y02D70/1224 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/162 ,  Y02D70/164 ,  Y02D70/168 ,  Y02D70/22 ,  Y02D70/23

摘要： Systems and methodologies are described that facilitate choosing parameters to utilize in a local area peer-to-peer network. The parameters may relate to tone spacing, cyclic prefix, symbol time and the like. Further, the parameters may be a function of a state (e.g. peer discovery state control related traffic state, data related traffic state, . . . ) associated with the local area peer-to-peer network. Moreover, the local area peer-to-peer network may share spectrum with a wide area network; as such, parameters for the peer-to-peer network may be selected based on the type of wide area network (e.g., air interface technology)and/or wide area network related parameters.

摘要翻译： 描述了便于选择在局域对等网络中使用的参数的系统和方法。 这些参数可以涉及音调间隔，循环前缀，符号时间等。 此外，参数可以是与本地对等网络相关联的状态（例如，对等体发现状态控制相关业务状态，数据相关业务状态等）的功能。 此外，本地对等网络可以与广域网共享频谱; 因此，可以基于广域网的类型（例如，空中接口技术）和/或广域网相关参数来选择对等网络的参数。

公开(公告)号：US08849197B2

公开(公告)日：2014-09-30

申请号：US12164352

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： H04B7/00 ,  H04W72/00 ,  H04B15/00

CPC分类号： H04W72/00 ,  H04B1/71072 ,  H04J11/004 ,  H04W28/22 ,  H04W72/082 ,  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 sends a first rate report signal and a second rate report signal to a first transmitter device indicating a first and second transmission rates. A connection is established between the first transmitter device and the first receiver device in which the first receiver device is the intended receiver of traffic signals from the first transmitter device. The first receiver device receives a traffic signal in a subsequent traffic channel, the traffic signal including a first traffic signal from the first transmitter device having a first traffic transmission rate not exceeding the first transmission rate. The received traffic signal also includes a second traffic signal transmitted by an interfering second transmitter device having a second traffic transmission rate not exceeding the second transmission rate.

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）。 第一接收机设备向第一发射机设备发送指示第一和第二传输速率的第一速率报告信号和第二速率报告信号。 在第一发射机设备和第一接收机设备之间建立连接，其中第一接收机设备是来自第一发射机设备的业务信号的预期接收机。 第一接收机设备在后续业务信道中接收业务信号，该业务信号包括来自第一发射机设备的具有不超过第一传输速率的第一业务传输速率的第一业务信号。 所接收的业务信号还包括由具有不超过第二传输速率的第二业务传输速率的干扰第二发射机设备发送的第二业务信号。

公开(公告)号：US08780885B2

公开(公告)日：2014-07-15

申请号：US11775193

申请日：2007-07-09

申请人： Junyi Li ,  Rajiv Laroia ,  Xinzhou Wu ,  Thomas Richardson

发明人： Junyi Li ,  Rajiv Laroia ,  Xinzhou Wu ,  Thomas Richardson

IPC分类号： H04J3/06

CPC分类号： H04W56/0015 ,  H04W48/08 ,  H04W56/002 ,  H04W84/18 ,  H04W92/10 ,  H04W92/18

摘要： In an ad hoc peer-to-peer communications network, timing synchronization can be facilitated between nodes as a function of a received timing of nearby nodes, as well as a network timing. A first timing reference can be used to determine a symbol timing. A second signal that includes a second timing reference can be used to determine a difference between the symbol timing and the second timing reference. The difference can be used to adjust a symbol timing, which can be transmitted to nearby nodes. The first timing reference and the second timing reference can be received from different sources.

摘要翻译： 在特定的对等通信网络中，作为接收到的附近节点的定时的函数以及网络定时，可以在节点之间方便定时同步。 可以使用第一定时参考来确定符号定时。 可以使用包括第二定时参考的第二信号来确定符号定时和第二定时参考之间的差。 该差异可以用于调整可以传送到附近节点的符号定时。 可以从不同的来源接收第一定时参考和第二定时参考。

公开(公告)号：US08767709B2

公开(公告)日：2014-07-01

申请号：US13112598

申请日：2011-05-20

申请人： Xinzhou Wu ,  Junyi Li ,  Rajiv Laroia ,  Thomas Richardson ,  Saurabh Tavildar

发明人： Xinzhou Wu ,  Junyi Li ,  Rajiv Laroia ,  Thomas Richardson ,  Saurabh Tavildar

IPC分类号： H04W28/12

CPC分类号： H04W74/00 ,  H04W72/12

摘要： Methods and apparatus related to the communication of traffic in peer to peer communications are described. A peer to peer communications system includes traffic slots, and for a pair of devices (first and second) having a connection a first transmission request resource and a second transmission request resource are associated with a traffic transmission interval of the traffic slot, the first request resource preceding the second request resource. The first device can utilize the first resource to transmit a request to transmit traffic to the second device, and when it does, it also uses the second resource to transmit additional information corresponding to the request and/or traffic. If the second device doesn't detect a request on the first resource, then it can use the second resource to transmit a request to first device to transmit traffic to the first device.

摘要翻译： 描述了与对等通信中流量通信有关的方法和设备。 对等通信系统包括业务时隙，并且对于具有第一传输请求资源和第二传输请求资源的连接的一对设备（第一和第二）与业务时隙的业务传输间隔相关联，所述第一请求 资源在第二个请求资源之前。 第一设备可以利用第一资源来发送向第二设备传输业务的请求，并且当它执行时，它还使用第二资源来发送对应于请求和/或业务的附加信息。 如果第二设备没有检测到第一资源上的请求，则可以使用第二资源向第一设备发送请求以向第一设备发送业务。

公开(公告)号：US08730841B2

公开(公告)日：2014-05-20

申请号：US12111717

申请日：2008-04-29

申请人： Junyi Li ,  Rajiv Laroia ,  Xinzhou Wu

发明人： Junyi Li ,  Rajiv Laroia ,  Xinzhou Wu

IPC分类号： H04J3/00

CPC分类号： H04W52/383 ,  H04W92/18

摘要： Methods and apparatus for supporting peer to peer communications are described. A peer to peer communications device uses both wide area network (WAN) uplink and downlink communications air link resources for peer to peer signaling. During an uplink share mode of operation a peer to peer wireless terminal uses a wide area network uplink communications band to communicate peer to peer signals, and the peer to peer wireless terminal implements a first transmission power control function. During a downlink share mode of operation, the peer to peer wireless terminal uses a wide area network downlink communications band to communicate peer to peer signals, and the peer to peer wireless terminal implements a second transmission power control function. The second power control function is different from the first power control function.

摘要翻译： 描述了用于支持对等通信的方法和装置。 对等通信设备使用广域网（WAN）上行链路和下行链路通信空中链路资源进行对等信令。 在上行链路共享操作模式期间，对等无线终端使用广域网上行通信频带来传送对等信号，对等无线终端实现第一传输功率控制功能。 在下行链路共享操作模式下，对等无线终端使用广域网下行通信频带对等信息进行通信，对等无线终端实现第二传输功率控制功能。 第二功率控制功能与第一功率控制功能不同。

公开(公告)号：US08724609B2

公开(公告)日：2014-05-13

申请号：US13118092

申请日：2011-05-27

申请人： Xinzhou Wu ,  Saurabh Tavildar ,  Vincent D. Park ,  Junyi Li ,  Rajiv Laroia

发明人： Xinzhou Wu ,  Saurabh Tavildar ,  Vincent D. Park ,  Junyi Li ,  Rajiv Laroia

IPC分类号： H04B7/208 ,  H04L12/28 ,  H04W28/02 ,  H04W72/08 ,  H04W72/10 ,  H04W72/12 ,  H04W72/00

CPC分类号： H04W28/0236 ,  H04L12/1881 ,  H04L12/189 ,  H04W72/005 ,  H04W72/082 ,  H04W72/10 ,  H04W72/1231 ,  H04W72/1247 ,  H04W84/18

摘要： Methods and apparatus related to broadcasting data and interference management in a peer to peer wireless communications network are described. Scheduling of traffic air link resources is performed on a slot by slot basis in a decentralized manner. Wireless devices intending to broadcast traffic signals transmit broadcast request signals, sometimes alternatively referred to as broadcast indicator signals. A priority level is associated with each of the broadcast request signals. A receiver device intending to receive broadcast signals detects the broadcast request signals and makes an interference determination as to whether the higher priority broadcast traffic signal can be successfully recovered in the presence of lower priority broadcast traffic signals. If the determination is that the expected interference from the lower priority broadcast traffic is unacceptable, the receiver device generates and transmits an interference control signal communicating to the lower priority device a command or request not to broadcast.

摘要翻译： 描述了在对等无线通信网络中与广播数据和干扰管理有关的方法和装置。 以分散的方式逐个时隙地执行业务空中链路资源的调度。 有意地广播业务信号的无线设备发送广播请求信号，有时可选地称为广播指示符信号。 优先级与每个广播请求信号相关联。 要接收广播信号的接收机设备检测广播请求信号，并且在存在较低优先级的广播业务信号的情况下，是否可以成功地恢复较高优先级的广播业务信号，并做出干扰确定。 如果确定来自较低优先级的广播业务的预期干扰是不可接受的，则接收机设备生成并发送与低优先级设备通信的干扰控制信号，该命令或请求不被广播。

公开(公告)号：US08601156B2

公开(公告)日：2013-12-03

申请号：US11774214

申请日：2007-07-06

申请人： Rajiv Laroia ,  Junyi Li ,  Aleksandar Jovicic ,  Thomas Richardson ,  Xinzhou Wu

发明人： Rajiv Laroia ,  Junyi Li ,  Aleksandar Jovicic ,  Thomas Richardson ,  Xinzhou Wu

IPC分类号： G06F15/173

CPC分类号： H04W8/005 ,  H04L5/0007 ,  H04L5/0032 ,  H04L5/005 ,  H04W68/00

摘要： Methods and apparatus related to peer to peer communication networks are described. A peer to peer timing structure is implemented which includes recurring peer discovery intervals and traffic intervals. During a peer discovery interval, a wireless communications device, supporting peer to peer communications, monitors for and receives a broadcast signal from another peer wireless communications device, recovers an identifier from the received broadcast signal, and stores the received identifier in memory. The identifier is one of a device identifier and a user identifier. The wireless communications device maintains a list of discovered identifiers in its vicinity. In some embodiments, paging intervals are also included in the recurring peer to peer timing structure. In various embodiments, a wireless communications device receives or sends a page to a peer node prior to sending or receiving user data in a traffic interval. Various features are directed to peer paging protocol implementations.

摘要翻译： 描述了与对等通信网络相关的方法和设备。 实现了对等定时结构，包括循环对等体发现间隔和业务间隔。 在对等设备发现间隔期间，支持对等通信的无线通信设备监视来自另一对等无线通信设备的广播信号并从接收的广播信号中恢复标识符，并将接收的标识符存储在存储器中。 标识符是设备标识符和用户标识符之一。 无线通信设备在其附近维护发现的标识符的列表。 在一些实施例中，寻呼间隔也包括在循环对等定时结构中。 在各种实施例中，无线通信设备在业务间隔内发送或接收用户数据之前，将页面接收或发送到对等节点。 各种特征针对对等寻呼协议实现。