公开(公告)号：US07961708B2

公开(公告)日：2011-06-14

申请号：US11775787

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： H04J3/06

CPC分类号： H04L5/0053 ,  H04L5/0007

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）。

公开(公告)号：US20090109851A1

公开(公告)日：2009-04-30

申请号：US11933042

申请日：2007-10-31

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

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

IPC分类号： H04L12/28

CPC分类号： H04W72/1231 ,  H04W72/1278 ,  H04W84/18 ,  H04W92/18

摘要： Methods and apparatus for use in a wireless communications system in which traffic air link resources may be, and sometimes are, shared are described. Various described methods and apparatus are well suited for use in a peer to peer communications system in which transmission control decisions are made in a decentralized manner. An exemplary peer to peer communications system implements the scheduling of traffic intervals in a distributed manner utilizing connection priority information and interference information. An exemplary peer to peer timing structure includes a user scheduling interval and an associated traffic interval. The user scheduling interval includes a plurality transmission request/request response rounds. By utilizing multiple request/request response rounds, a transmission decision corresponding to a connection to yield in an earlier round can be overridden in a subsequent round, resulting in higher overall traffic throughput in the system.

摘要翻译： 描述用于其中交通空中链路资源可以共享的无线通信系统中的方法和装置。 各种描述的方法和装置非常适合用于以分散方式进行传输控制决定的对等通信系统。 示例性的对等通信系统利用连接优先级信息和干扰信息以分布式方式实现业务间隔的调度。 一种示例性的对等定时结构包括用户调度间隔和相关联的业务间隔。 用户调度间隔包括多个发送请求/请求响应轮。 通过利用多个请求/请求响应轮，可以在随后的一轮中覆盖对应于在较早轮中产生的连接的传输决定，导致系统中更高的总体流量吞吐量。

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：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。

公开(公告)号：US08599823B2

公开(公告)日：2013-12-03

申请号：US11774176

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： H04J3/06 ,  H04W4/00 ,  H04W68/00 ,  H04L12/43 ,  H04B7/00

CPC分类号： H04W56/001 ,  H04W4/06 ,  H04W8/005 ,  H04W48/16 ,  H04W68/00 ,  H04W84/06 ,  H04W84/18 ,  H04W92/18

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. Some embodiments further include recurring paging intervals for peer to peer pages. A wireless communications device, supporting peer to peer communications and storing information defining the timing structure, determines a time reference point, facilitating a coarse level of synchronization with respect to the timing structure. The time reference point is determined based on a broadcast signal received from a communications device, e.g., a satellite, base station, or beacon signal transmitter. Multiple peer to peer wireless communications devices in a local vicinity thus obtain the same basic understanding as to the current relative point in time with respect to a common recurring peer to peer timing structure. Peer to peer timing synchronization is further refined based on received signals communicated between peers.

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。 一些实施例还包括对等页面的循环寻呼间隔。 支持对等通信并且存储定义定时结构的信息的无线通信设备确定时间参考点，有助于相对于定时结构的粗略级别的同步。 基于从通信设备（例如，卫星，基站或信标信号发射机）接收的广播信号来确定时间参考点。 本地区域中的多个对等无线通信设备因此获得与当前相对时间点相对于常见的重复对等定时结构相同的基本理解。 基于在对等体之间传送的接收信号，对等定时同步进一步改进。

公开(公告)号：US08494007B2

公开(公告)日：2013-07-23

申请号：US11775803

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： H04J1/02 ,  H04J3/06 ,  H04J3/12

CPC分类号： H04W8/005 ,  H04L5/0007 ,  H04L5/0032 ,  H04L5/0053 ,  H04W8/26 ,  H04W72/02

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).

公开(公告)号：US07983165B2

公开(公告)日：2011-07-19

申请号：US11933042

申请日：2007-10-31

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

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

IPC分类号： G01R31/08 ,  G06F11/00 ,  G08C15/00 ,  H04J1/16 ,  H04J3/14 ,  H04L1/00 ,  H04L12/26 ,  H04B7/212 ,  H04B7/00

CPC分类号： H04W72/1231 ,  H04W72/1278 ,  H04W84/18 ,  H04W92/18

摘要： Methods and apparatus for use in a wireless communications system in which traffic air link resources may be, and sometimes are, shared are described. Various described methods and apparatus are well suited for use in a peer to peer communications system in which transmission control decisions are made in a decentralized manner. An exemplary peer to peer communications system implements the scheduling of traffic intervals in a distributed manner utilizing connection priority information and interference information. An exemplary peer to peer timing structure includes a user scheduling interval and an associated traffic interval. The user scheduling interval includes a plurality transmission request/request response rounds. By utilizing multiple request/request response rounds, a transmission decision corresponding to a connection to yield in an earlier round can be overridden in a subsequent round, resulting in higher overall traffic throughput in the system.

摘要翻译： 描述用于其中交通空中链路资源可以共享的无线通信系统中的方法和装置。 各种描述的方法和装置非常适合用于以分散方式进行传输控制决定的对等通信系统。 示例性的对等通信系统利用连接优先级信息和干扰信息以分布式方式实现业务间隔的调度。 一种示例性的对等定时结构包括用户调度间隔和相关联的业务间隔。 用户调度间隔包括多个发送请求/请求响应轮。 通过利用多个请求/请求响应轮，可以在随后的一轮中覆盖对应于在较早轮中产生的连接的传输决定，导致系统中更高的总体流量吞吐量。

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。

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。