公开(公告)号：US20100118761A1

公开(公告)日：2010-05-13

申请号：US12268186

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： H04B7/14

CPC分类号： H04W72/1231 ,  H04L5/003 ,  H04L5/0037 ,  H04L5/0053 ,  H04L5/006 ,  H04L5/0064 ,  H04L5/0091 ,  H04W72/1236 ,  H04W84/18

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 communicate traffic signals makes a receiver yielding decision. The receiver yielding decision, in some embodiments, includes comparing a link quality estimate corresponding to its own link, to a dynamically generated receiver yielding threshold. The dynamically generated receiver 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 its own 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，其希望传送业务信号使接收机产生决定。 在一些实施例中，接收器产生决定包括将对应于其自身链路的链路质量估计与动态产生的接收机产生阈值进行比较。 基于与其自己的链路相对应的服务质量信息和对应于其自己的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接收机产生阈值。

公开(公告)号：US20100118701A1

公开(公告)日：2010-05-13

申请号：US12267905

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： H04W72/1231 ,  H04L43/08 ,  H04W72/1278

摘要： Methods and apparatus for making communications decisions are described. In some embodiments, a method includes recovering a quality of service level from a transmission request response signal and making a decision whether or not to transmit traffic data based on the recovered quality of service level. In other embodiments a method includes recovering a first quality of service level from a first transmission request response signal which is in response to a first traffic transmission request signal, and making a decision, based on the recovered first quality of service level, whether or not to transmit a second transmission request response signal in response to a second traffic transmission request signal. In some embodiments, the phase of the transmission request response signal is used to communicate the quality of service level. The device transmitting the transmission request response 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，一种方法包括从传输请求响应信号中恢复服务质量水平，并基于恢复的服务质量水平决定是否传送业务数据。 在其他实施例中，一种方法包括从响应于第一业务传输请求信号的第一传输请求响应信号恢复第一服务质量水平，并且基于恢复的第一服务质量水平做出决定 响应于第二业务传输请求信号发送第二传输请求响应信号。 在一些实施例中，传输请求响应信号的相位用于传达服务质量水平。 发送发送请求响应的装置也可以发送可用作相位参考信号的导频。

公开(公告)号：US20100085973A1

公开(公告)日：2010-04-08

申请号：US12246905

申请日：2008-10-07

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： H04L12/56

CPC分类号： H04W72/02 ,  H04W72/082 ,  H04W84/18

摘要： Wireless terminals in a peer to peer system, which desire to communicate traffic signals, acquire a connection identifier associated with traffic transmission request air link resources. The air link resources in the system, in some embodiments, are structured so that each connection identifier has a one to one mapping to a request transmission unit, the request transmission units are arranged into a plurality of groups, and each group occurs in a different symbol time interval for the same traffic slot. A wireless terminal identifies locally available connection identifiers from a set of connection identifiers based on power received on individual connection identification transmission units in a set of connection identification transmission units; determines, for each group having an identified locally available connection identifier, an interference estimate; and selects a connection identifier from the identified locally available connection identifiers belonging to a group having an acceptable determined interference estimate.

摘要翻译： 对等系统中希望传送交通信号的无线终端获取与业务传输请求空中链路资源相关联的连接标识符。 在一些实施例中，系统中的空中链路资源被构造成使得每个连接标识符具有与请求传输单元的一对一映射，所述请求传输单元被布置成多个组，并且每个组出现在不同的组中 相同流量时隙的符号时间间隔。 无线终端基于在一组连接识别传输单元中的单独连接识别传输单元上接收的功率，从一组连接标识符识别本地可用的连接标识符; 对于具有所识别的本地可用连接标识符的每个组确定干扰估计; 并且从属于具有可接受的确定干扰估计的组的所识别的本地可用连接标识符中选择连接标识符。

公开(公告)号：US20090323665A1

公开(公告)日：2009-12-31

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： H04J3/00

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：US20090017783A1

公开(公告)日：2009-01-15

申请号：US12164431

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： H04B1/10

CPC分类号： H04W52/325 ,  H04W28/22 ,  H04W52/10

摘要： A first receiver device receives a first pilot signal from a first transmitter device and a second pilot signal from a second transmitter device. The second pilot signal indicates that the second transmitter device intends to transmit a second traffic signal. The first receiver device determines a transmission rate for the first transmitter device as a function of the received signal strength of the first pilot and a predicted amount of the total interference to be perceived by the first receiver device. The predicted amount of the total interference being determined as a function of a SIC success probability. The transmission rate is sent to the first transmitter device. The first receiver device predicts whether the second traffic signal can be decoded and subtracted before the first receiver device decodes the first traffic signal to be transmitted by the first transmitter device as a function of the SIC success probability.

摘要翻译： 第一接收机设备从第一发射机设备接收第一导频信号和从第二发射机设备接收第二导频信号。 第二导频信号指示第二发射机设备旨在发送第二业务信号。 第一接收机设备根据第一导频的接收信号强度和第一接收机设备感知到的总干扰预测量确定第一发射机设备的传输速率。 总干扰的预测量被确定为SIC成功概率的函数。 传输速率被发送到第一发射机设备。 第一接收机设备预测在第一接收机设备是否将由第一发射机设备发送的第一业务信号作为SIC成功概率的函数来解码和减去第二业务信号。

公开(公告)号：US20090017760A1

公开(公告)日：2009-01-15

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： H04B1/00

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来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。

公开(公告)号：US20090016315A1

公开(公告)日：2009-01-15

申请号：US12146939

申请日：2008-06-26

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

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

IPC分类号： H04J3/00

CPC分类号： H04W76/11 ,  H04W72/0466 ,  H04W84/18

摘要： Apparatus and method are provided for generating transmission connection identifiers (CIDs) in a non-orthogonal or pseudo-random manner identifying peer-to-peer connections in a wireless communication network. When a transmitter terminal intends to transmit to its peer receiver terminal, it just picks a transmission CID in a pseudo-random manner, without trying to avoid a similar transmission CID in a neighborhood. The method of generating this pseudo-random transmission CID may be agreed to between the transmitter and its intended receiver beforehand, for example, during the paging cycle. Also, the mapping between the transmission CID and a set of tone/symbols may not necessarily be orthogonal. In one embodiment, the transmission CID may also change over time in a pseudo-random fashion which is different between different transmitter/receiver pairs. With this property, two transmitter/receiver (Tx/Rx) pairs are not likely to use the same transmission CID for consecutive time intervals.

摘要翻译： 提供装置和方法用于以非正交或伪随机方式生成识别无线通信网络中的对等连接的传输连接标识符（CID）。 当发射机终端意图向其对等接收机终端发送时，它只是以伪随机方式选择传输CID，而不试图避免邻近的类似传输CID。 可以例如在寻呼周期期间，事先将发送机与其预期的接收机之间的协议确定为生成该伪随机传输CID的方法。 此外，传输CID和一组音调/符号之间的映射可能不一定是正交的。 在一个实施例中，传输CID也可以以不同的发射机/接收机对之间的伪随机方式随时间改变。 使用此属性，两个发射机/接收机（Tx / Rx）对不可能在连续的时间间隔内使用相同的传输CID。

公开(公告)号：US20090016219A1

公开(公告)日：2009-01-15

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： H04L12/26

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.

摘要翻译： 第一设备被配置为选择和利用用于无线通信网络中的第一设备和第二设备之间的对等通信连接的连接标识符（CID）。 CID从预定的多个CID组中选择。 在选择连接标识符之前，第一设备监视CID广播信道以确定CID是否被其他附近的连接利用。 如果确定CID正在邻近的另一连接被使用，则选择不同的（未使用的）CID。 使用业务管理信道时隙内的第一传输资源单元将传输请求发送到第二设备，第一传输资源单元被确定为所选择的CID的函数。 第一设备在对应于业务管理信道时隙的业务信道时隙中向第二设备发送业务数据。

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：US08811372B2

公开(公告)日：2014-08-19

申请号：US11775191

申请日：2007-07-09

申请人： Junyi Li ,  Xinzhou Wu ,  Saurabh Tavildar ,  Leonard Grokop

发明人： Junyi Li ,  Xinzhou Wu ,  Saurabh Tavildar ,  Leonard Grokop

IPC分类号： H04J3/06 ,  H04W56/00 ,  H04W84/18 ,  H04W92/18 ,  H04W92/10

CPC分类号： H04W56/0015 ,  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 two or more nodes based on respective timing adjustments. A sequence of timing synchronization time intervals can be determined based on a first timing reference received from a source. A symbol timing can be determined and included in a first signal transmitted during a dedicated time interval, which can be a chosen fraction of one of the timing synchronization time intervals. In the remaining portion of the time interval, such as a non-chosen fraction, a second signal that includes a second timing reference can be received. Based on the symbol timing and the second timing reference, a timing adjustment can be determined and timing of each node adjusted accordingly.

摘要翻译： 在特定的对等通信网络中，可以基于相应的定时调整在两个或更多个节点之间方便定时同步。 可以基于从源接收的第一定时参考来确定定时同步时间间隔的序列。 可以确定符号定时并将其包括在专用时间间隔内发送的第一信号中，该专用时间间隔可以是定时同步时间间隔之一的选定分数。 在时间间隔的剩余部分，例如未选择的分数，可以接收包括第二定时参考的第二信号。 基于符号定时和第二定时参考，可以确定定时调整并且相应地调整每个节点的定时。