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：US20100310004A1

公开(公告)日：2010-12-09

申请号：US12477644

申请日：2009-06-03

申请人： Junyi Li ,  Xinzhou Wu ,  Rajiv Laroia

发明人： Junyi Li ,  Xinzhou Wu ,  Rajiv Laroia

IPC分类号： H04L27/00

CPC分类号： H04L27/2637

摘要： A wireless communications device transmits during a first time using a single tone and during a second time using a plurality of tones. The wireless communications device uses linear power amplification for transmitting multi-tone signals and non-linear power amplification for transmitting at least some single tone signals. In some embodiments a linear amplification range on a first amplifier's characteristic curve is used for the linear amplification and a non-linear amplification range on the first amplifier's characteristic curve is used for the non-linear amplification. Filtering subsequent to the amplification is controlled to accommodate the type of amplification being used. In some embodiments, the decision as to whether to use linear amplification or non-linear amplification is a function of whether the intended transmitted signal is to be a single tone signal or a multi-tone signal. In some embodiments, the decision is also a function of intended range.

摘要翻译： 无线通信设备在第一次使用单个音调和在第二时间期间使用多个音调来发送。 无线通信设备使用线性功率放大来发送多音调信号和非线性功率放大，用于发送至少一些单音调信号。 在一些实施例中，第一放大器的特性曲线上的线性放大范围用于线性放大，并且第一放大器的特性曲线上的非线性放大范围用于非线性放大。 控制放大之后的滤波被控制以适应正在使用的放大的类型。 在一些实施例中，关于是否使用线性放大或非线性放大的决定是否是预期的发送信号是单音调信号还是多音调信号的功能。 在一些实施例中，该决定也是预期范围的函数。

公开(公告)号：US20100291872A1

公开(公告)日：2010-11-18

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：US20100120372A1

公开(公告)日：2010-05-13

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： H04B7/005

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：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。

公开(公告)号：US20100022190A1

公开(公告)日：2010-01-28

申请号：US12178231

申请日：2008-07-23

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

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

IPC分类号： H04B17/00

CPC分类号： H04W40/12 ,  Y02D70/22 ,  Y02D70/34

摘要： Methods and apparatus for wireless communications in networks, e.g., regional ad hoc peer to peer networks, are described. A communications node, e.g., a third node monitors for wireless communications between other peer communication nodes, e.g., a first node and a second node, in its local vicinity. The third node determines from the monitored wireless communication an indication of link quality corresponding to a communication link between the communication nodes which are communicating or seeking to establish a communications link. The third node generates an estimate of a link quality for a communications link between itself and the first node. Based on the indication of link quality and generated estimate of link quality, the third node decides whether or not to send a signal indicating availability to relay communication between the first and second nodes. The third node, when acting as an intermediary node after indicating its availability to so act, may receive traffic data e.g., user data communicated in a peer to peer traffic segment, from the first node. The third node communicates the received traffic data to the second node by transmitting the traffic data.

摘要翻译： 描述了用于网络中的无线通信的方法和装置，例如区域自组织对等网络。 通信节点，例如第三节点监视在其本地附近的其他对等通信节点（例如，第一节点和第二节点）之间的无线通信。 第三节点从监视的无线通信确定与正在通信或寻求建立通信链路的通信节点之间的通信链路相对应的链路质量的指示。 第三节点产生对于其与第一节点之间的通信链路的链路质量的估计。 基于链路质量的指示和链路质量的产生估计，第三节点决定是否发送指示第一和第二节点之间的中继通信的可用性的信号。 第三节点在指示其可用性之后充当中间节点时可以从第一节点接收业务数据，例如在对等业务段中传送的用户数据。 第三节点通过发送业务数据将接收到的业务数据传送到第二节点。

公开(公告)号：US20090232143A1

公开(公告)日：2009-09-17

申请号：US12047829

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： H04L12/56

CPC分类号： H04W72/1242 ,  H04L5/0007 ,  H04L5/0032 ,  H04L5/0053 ,  H04L5/0064 ,  H04L47/24 ,  H04W76/11

摘要： Methods and apparatus related to scheduling and/or utilization of air link traffic resources are described. A peer to peer connection holds a set of multiple connection identifiers for a plurality of successive traffic slots. Corresponding to a particular traffic slot, each of the connection identifiers in the set of connection identifiers has a different priority. Short term traffic needs are considered in the use of the multiple connection identifiers being held. For example, a communications device, corresponding to a peer to peer connection which is associated with a plurality of connection identifiers having different priorities, considers the amount and/or latency requirements of data to be transmitted at any given time when selecting which connection identifier to use when transmitting a traffic transmission request for a traffic segment which is in contention.

摘要翻译： 描述与空中链路业务资源的调度和/或利用相关的方法和装置。 对等连接保持多个连续业务时隙的一组多个连接标识符。 对应于特定业务时隙，该组连接标识符中的每个连接标识符具有不同的优先级。 在使用保持的多个连接标识符时考虑短期业务需求。 例如，对应于与具有不同优先级的多个连接标识符相关联的对等连接的通信设备考虑在任何给定时间在选择哪个连接标识符到达时要发送的数据的数量和/或等待时间要求 当发送涉及竞争的业务段的业务传输请求时使用。

公开(公告)号：US20090232034A1

公开(公告)日：2009-09-17

申请号：US12047713

申请日：2008-03-13

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

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

IPC分类号： H04B7/00

CPC分类号： H04L67/16 ,  H04L67/18 ,  H04W4/02 ,  H04W4/021 ,  H04W40/246 ,  H04W68/00 ,  Y02D30/40 ,  Y02D70/00 ,  Y02D70/20

摘要： Methods and apparatus for wireless communications in regional networks, e.g., ad hoc peer to peer networks, are described. Wireless communications devices transmit and monitor for presence indicator signals broadcast from other peer communications devices in its local vicinity. A wireless communications device maintains a list of discovered devices in its vicinity. A first wireless communications device transmits a paging signal directly over an airlink to a second communications device, which is on its list and to which it desires to send data units, e.g., user data in a peer to peer traffic segment. In response to a received paging response signal from the second device, the first device transmits data units, intended for the second device, to a third device, which acts as an intermediary node. The power level for the data unit signal is controlled to be lower than the power level used for the paging signal.

摘要翻译： 描述了区域网络（例如，自组织对等网络）中的无线通信的方法和装置。 无线通信设备发送和监视其本地附近的其他对等通信设备广播的存在指示符信号。 无线通信设备维护其附近发现的设备的列表。 第一无线通信设备通过空中链路将寻呼信号直接发送到第二通信设备，该第二通信设备位于其列表上并且希望向其发送数据单元（例如，对等业务段中的用户数据）。 响应于来自第二设备的接收到的寻呼响应信号，第一设备将用于第二设备的数据单元发送到充当中间节点的第三设备。 数据单元信号的功率电平被控制为低于用于寻呼信号的功率电平。

公开(公告)号：US20090019169A1

公开(公告)日：2009-01-15

申请号：US12166692

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： G06F15/16

CPC分类号： H04L5/0048 ,  H04B7/15542 ,  H04L1/0002 ,  H04L1/0023 ,  H04L1/20 ,  H04L5/0007 ,  H04L5/0033 ,  H04L5/0044 ,  H04L5/006 ,  H04L25/0226 ,  H04L25/0228 ,  H04L27/2647 ,  H04W72/02 ,  H04W72/085

摘要： Methods and Apparatus for communicating information, e.g., control information, e.g., in the form of a control value, between communications devices, e.g., peer to peer communications devices, are described. Positional coding is used to encode a value to be communicated and the encoded value it then transmitted on a set of communications resources with the placement of signal energy on individual ones of the resources being used to create a pattern used to convey the value to be communicated. Resources, e.g., tone-symbols, which communicate unreliable signal portions due to interference are identified and not used in the positional decoding operation as either an energy carrying tone-symbol or a non-energy carrying tone-symbol.

摘要翻译： 描述了用于在通信设备（例如，对等通信设备）之间传送信息的方法和装置，例如控制信息，例如以控制值的形式。 位置编码用于对要传送的值进行编码，然后将其编码值发送到一组通信资源上，将信号能量放置在用于创建用于传达要传送的值的模式中的各个资源上 。 在位置解码操作中识别和不使用资源，例如由于干扰而传送不可靠信号部分的音调符号作为能量承载音符号或不能承载音调符号。