公开(公告)号：US08521194B2

公开(公告)日：2013-08-27

申请号：US11775461

申请日：2007-07-10

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

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

IPC分类号： H04W68/00

CPC分类号： H04W76/14 ,  H04W68/00 ,  H04W72/02 ,  H04W76/11

摘要： Systems and methodologies are described that facilitate paging within a peer-to-peer communication network. A first wireless terminal monitors the paging channel of a wide area network. When a second wireless terminal intends to establish a peer-to-peer connection with the first wireless terminal, the second wireless terminal generates a paging message and transfers the message to the WAN, which routes the paging message to a base station. The base station uses its paging channel to send a paging message to the target first wireless terminal. The paging message indicates to the target first wireless terminal that the second wireless terminal intends to establish a peer-to-peer connection with the first wireless terminal. The paging message may further include parameters to be used to establish the peer-to-peer connection. Upon reception of the paging message, the second wireless terminal sends a signal directly to the first wireless terminal to start the direct peer-to-peer communication.

摘要翻译： 描述了促进对等通信网络内的寻呼的系统和方法。 第一无线终端监视广域网的寻呼信道。 当第二无线终端意图与第一无线终端建立点对点连接时，第二无线终端生成寻呼消息，并将消息传送到WAN，该寻呼消息将寻呼消息路由到基站。 基站使用其寻呼信道向目标第一无线终端发送寻呼消息。 寻呼消息向目标第一无线终端指示第二无线终端旨在建立与第一无线终端的对等连接。 寻呼消息还可以包括用于建立对等连接的参数。 在接收到寻呼消息时，第二无线终端直接向第一无线终端发送信号以开始直接对等通信。

公开(公告)号：US08391879B2

公开(公告)日：2013-03-05

申请号：US12267888

申请日：2008-11-10

申请人： Junyi Li ,  Saurabh Tavildar ,  Rajiv Laroia ,  Gavin Horn ,  Ashwin Sampath ,  Xinzhou Wu

发明人： Junyi Li ,  Saurabh Tavildar ,  Rajiv Laroia ,  Gavin Horn ,  Ashwin Sampath ,  Xinzhou Wu

IPC分类号： H04W72/00

CPC分类号： H04W72/1278 ,  H04L5/0007 ,  H04L5/0032 ,  H04L5/0053 ,  H04L5/0091 ,  H04L67/104 ,  H04W72/1226 ,  H04W84/18

摘要： Methods and apparatus well suited to decentralized traffic scheduling in wireless peer to peer network are described. An individual wireless terminal corresponding to a peer to peer connection makes a transmitter yielding or receiver yielding decision for a traffic slot. Quality of service information is disseminated as part of the scheduling control signaling. A scheduling control signal, e.g., a traffic transmission request signal or a traffic transmission request response signal, includes a pilot portion and a quality of service information portion. The pilot facilitates the recovery of the quality of service information by a plurality of different devices which may have different channel conditions with respect to the transmitter of the scheduling control signal. The different devices may benefit from utilizing the recovered quality of service information in making a yielding decision regarding traffic signaling in a traffic segment.

摘要翻译： 描述了非常适合无线对等网络中分散业务调度的方法和设备。 与对等连接相对应的单个无线终端为业务时隙做出发射机屈服或接收机容易判定。 服务质量信息作为调度控制信令的一部分传播。 诸如业务传输请求信号或业务传输请求响应信号的调度控制信号包括导频部分和服务质量信息部分。 导频有助于通过可能具有与调度控制信号的发射机不同的信道条件的多个不同设备来恢复业务质量信息。 不同的设备可以受益于利用恢复的服务质量信息作出关于业务段中的业务信令的收益决定。

公开(公告)号：US08385826B2

公开(公告)日：2013-02-26

申请号：US12465938

申请日：2009-05-14

申请人： Rajiv Laroia ,  Junyi Li ,  Saurabh Tavildar ,  Xinzhou Wu ,  Aleksandar Jovicic

发明人： Rajiv Laroia ,  Junyi Li ,  Saurabh Tavildar ,  Xinzhou Wu ,  Aleksandar Jovicic

IPC分类号： H04B7/00

CPC分类号： H04W72/12 ,  H04W8/005 ,  H04W84/18 ,  H04W88/06

摘要： Methods and apparatus well suited for supporting communications over different ranges in, for example, a peer to peer wireless communications system, are described. In the peer to peer network at least some of the types of signals, e.g., peer discovery signals and/or paging signals, are transmitted with no closed loop power control. An exemplary peer to peer timing structure includes air link resources allocated for a particular type of signaling in which the resources are segmented into multiple blocks which do not overlap in time, different ones of the multiple blocks being associated with different ranges. The characteristics of the basic transmission units of the multiple blocks based on range are different, e.g., tone size and symbol width are different. A wireless communications device implements the peer to peer timing structure and uses resources from different range based blocks at different times. Data traffic transmission units may be the same regardless of the range.

摘要翻译： 描述了非常适合于支持例如对等无线通信系统中的不同范围的通信的方法和装置。 在对等网络中，在没有闭环功率控制的情况下，发送至少一些类型的信号，例如对等体发现信号和/或寻呼信号。 示例性的对等定时结构包括为特定类型的信令分配的空中链路资源，其中资源被分段成多个不在时间上重叠的块，多个块中的不同的块与不同的范围相关联。 基于范围的多个块的基本传输单元的特征是不同的，例如，音调尺寸和符号宽度不同。 无线通信设备实现对等定时结构，并且在不同时间使用来自不同基于范围的块的资源。 无论范围如何，数据业务传输单元可能相同。

公开(公告)号：US08160039B2

公开(公告)日：2012-04-17

申请号：US12268158

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： H04W4/00

CPC分类号： H04L25/03343 ,  H04L5/0007 ,  H04L5/0048 ,  H04L25/0224 ,  H04L2025/03414

摘要： Methods and apparatus for performing peer to peer communications with access routers and non-access router peer devices are described. An access terminal generates a channel estimate estimating the channel between the access terminal and an access router. For at least some communication with the access router, a channel compensation operation is performed on a symbol to be transmitted prior to its transmission to the access router. In contrast, symbols transmitted to other access terminals are not subject to a channel compensation operation prior to transmission with the receiving access terminal being responsible for implementing a channel compensation operation on the received signal.

摘要翻译： 描述了用于与接入路由器和非接入路由器对等设备进行对等通信的方法和装置。 接入终端生成估计接入终端与接入路由器之间的信道的信道估计。 对于与接入路由器的至少一些通信，在要传输到接入路由器之前要对要发送的符号执行信道补偿操作。 相反，发送到其他接入终端的符号在接收接入终端负责对接收到的信号执行信道补偿操作之前不进行信道补偿操作。

公开(公告)号：US08140103B2

公开(公告)日：2012-03-20

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。

公开(公告)号：US08134924B2

公开(公告)日：2012-03-13

申请号：US11945746

申请日：2007-11-27

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

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

IPC分类号： G08C15/00 ,  H04J3/16 ,  H04L12/56

CPC分类号： H04W72/1263 ,  H04W28/22

摘要： Methods and apparatus related to scheduling decisions of a peer to peer communications device for transmission into traffic intervals are described. A first peer to peer communications device maintains a set of information which allows it to base a scheduling decision for a current traffic interval upon prior performance in a prior traffic interval in which users of other connections were also operating. In some embodiments, the set of information includes a list of device or connection identifiers which the first peer to peer communications device has previously determined to have corresponded to a prior traffic interval in which the first peer to peer device had a low determined data rate. In some embodiments, the set of information includes: (i) a list of device or connection identifiers corresponding to prior traffic intervals and (ii) first peer to peer device data rate information associated with the prior traffic intervals

摘要翻译： 描述与对等通信设备的调度决策相关的传输到业务间隔的方法和设备。 第一对等通信设备维护一组信息，其允许其基于在其他连接的用户也在操作的先前业务间隔中的先前性能的当前业务间隔的调度决定。 在一些实施例中，该组信息包括第一对等通信设备先前已经确定已对应于第一对等设备具有低确定数据速率的先前业务间隔的设备或连接标识符的列表。 在一些实施例中，该组信息包括：（i）对应于先前业务间隔的设备或连接标识符的列表，以及（ii）与先前业务间隔相关联的第一对等设备数据速率信息

公开(公告)号：US20120020234A1

公开(公告)日：2012-01-26

申请号：US13250930

申请日：2011-09-30

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

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

IPC分类号： H04W24/00

CPC分类号： H04W72/1242 ,  H04W28/22 ,  H04W48/08 ,  H04W52/16 ,  H04W52/18 ,  H04W52/267 ,  H04W72/0473 ,  H04W72/12 ,  H04W76/14 ,  H04W92/18

摘要： Methods and apparatus related to peer to peer communication networks are described. Embodiments directed to methods and apparatus for establishing traffic data transmission rates and/or transmission power levels between wireless terminals is described. Embodiments direct to methods and apparatus of making decisions whether or not to transmit as a function of the received power of the received response signals are also described. Transmission of pilot signals after granting of a transmission request and a decision to transmit traffic data has been made occurs in some embodiments. Rate information to be used in determining a traffic rate may be received in response to the pilot signal from a peer to peer (P2P) device.

摘要翻译： 描述了与对等通信网络相关的方法和设备。 描述了用于在无线终端之间建立业务数据传输速率和/或传输功率电平的方法和装置的实施例。 还描述了根据接收到的响应信号的接收功率来决定是否发送的方法和装置的实施例。 在一些实施例中已经发生了在授予发送请求之后的导频信号的传输和传送业务数据的决定。 可以响应于来自对等（P2P）设备的导频信号来接收用于确定业务速率的速率信息。

公开(公告)号：US08077638B2

公开(公告)日：2011-12-13

申请号：US12146888

申请日：2008-06-26

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

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

IPC分类号： H04J1/16 ,  H04L12/56

CPC分类号： H04W4/20

摘要： Methods and apparatus related to scheduling traffic slots in a wireless communications system, e.g., an ad hoc peer to peer communications network are described. An implemented timing structure includes multiple traffic transmission slots and multiple request blocks with different priorities corresponding to a traffic transmission slot. A wireless terminal determines its own block priority level. If a wireless terminal's determined block priority level is the highest block priority level the wireless terminal is allowed to transmit a traffic transmission request in the highest traffic transmission request block; otherwise, the wireless terminal is restricted from transmitting a traffic transmission request in the highest priority request block. A wireless terminal monitors for request and/or request response activity corresponding to other connections high priority block signaling, and uses the collected information to determine its own block priority.

摘要翻译： 描述了在无线通信系统（例如，自组织对等通信网络）中调度业务时隙的方法和装置。 实施的定时结构包括多个业务传输时隙和具有与业务传输时隙对应的不同优先级的多个请求块。 无线终端确定其自身的块优先级。 如果无线终端确定的块优先级是最高块优先级，则允许无线终端在最高业务传输请求块中发送业务传输请求; 否则，无线终端被限制在最高优先级请求块中发送业务传输请求。 无线终端监视与其他连接高优先级块信令相对应的请求和/或请求响应活动，并且使用所收集的信息来确定其自身的块优先级。

公开(公告)号：US08072917B2

公开(公告)日：2011-12-06

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： H04B7/185 ,  H04B7/204 ,  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出错决策。

公开(公告)号：US07876701B2

公开(公告)日：2011-01-25

申请号：US12169087

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： H04L12/26 ,  H04L12/28

CPC分类号： H04L5/0091 ,  H04L5/0007 ,  H04L5/0044 ,  H04L5/0053 ,  H04L5/0062 ,  H04W72/082 ,  H04W72/1231 ,  H04W72/1278 ,  H04W74/002 ,  H04W84/18

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，其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。