公开(公告)号：US20090017759A1

公开(公告)日：2009-01-15

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： H04B1/00 ,  H04B1/10

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射的第二业务信号。

公开(公告)号：US20090016289A1

公开(公告)日：2009-01-15

申请号：US12168704

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：US20090016249A1

公开(公告)日：2009-01-15

申请号：US11775793

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： H04B7/005

CPC分类号： H04L67/1061 ,  H04J3/0638 ,  H04L5/0007 ,  H04L5/0032 ,  H04L5/0037 ,  H04L12/18 ,  H04L67/1093 ,  H04W8/005 ,  H04W56/001 ,  H04W56/0015 ,  H04W84/18

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：US20080037487A1

公开(公告)日：2008-02-14

申请号：US11621973

申请日：2007-01-10

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

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

IPC分类号： H04Q7/24

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 ,  Y02D70/1224 ,  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 encoding and/or decoding signals utilized to identify a wireless terminal during peer discovery interval(s). Substantially any type of function that constrains encoding and/or decoding within a peer-to-peer network may be utilized. For example, a reversible function may be employed that enables a receiving peer to discern an identifier of a transmitting peer over a series of peer discovery intervals. Pursuant to another example, an irreversible function may be utilized whereby a receiving peer may be unable to decipher the identifier of the transmitting peer from a received signal, however, expected signal formats of buddy peers may be compared to the received signal to determine a presence of one of the buddy peers in a vicinity.

摘要翻译： 描述了有助于在对等设备发现间隔期间编码和/或解码用于识别无线终端的信号的系统和方法。 可以利用约束在对等网络内的编码和/或解码的基本上任何类型的功能。 例如，可以采用可逆功能，其使得接收对等体能够通过一系列对等设备发现间隔来辨别发射对等体的标识符。 根据另一示例，可以利用不可逆函数，由此接收对等体可能不能从接收到的信号中解密发送对等体的标识符，然而，可以将好友对等体的预期信号格式与接收到的信号进行比较以确定存在 的邻居之一的好友同伴之一。

公开(公告)号：US20080031220A1

公开(公告)日：2008-02-07

申请号：US11775782

申请日：2007-07-10

申请人： Junyi Li ,  Rajiv Laroia ,  Xinzhou WU

发明人： Junyi Li ,  Rajiv Laroia ,  Xinzhou WU

IPC分类号： H04J3/06

CPC分类号： H04L7/0054 ,  H04L27/2607 ,  H04W48/08 ,  H04W56/00 ,  H04W92/18

摘要： Systems and methodologies are described that facilitates mitigating the affects of asynchronous behavior when transmitting a data signal. According to various aspects, the system and methods are employed for selectively appending an appropriate time-shifting mechanism to a data signal in order to rectify the negative affects of asynchronous time behavior during a logical data burst.

摘要翻译： 描述了在传输数据信号时有助于减轻异步行为的影响的系统和方法。 根据各个方面，采用系统和方法选择性地将适当的时移机制附加到数据信号，以便在逻辑数据突发期间纠正异步时间行为的负面影响。

公开(公告)号：US09668225B2

公开(公告)日：2017-05-30

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 ,  H04W52/32 ,  H04W28/22 ,  H04W52/10

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.

公开(公告)号：US08855567B2

公开(公告)日：2014-10-07

申请号：US12164394

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： H04W84/18 ,  H04L1/00 ,  H04B1/7107 ,  H04W28/22

CPC分类号： H04B1/71072 ,  H04L1/0003 ,  H04L1/0025 ,  H04L1/0048 ,  H04W28/22 ,  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. A first pilot signal is received by the first receiver device from the first transmitter device. Similarly, a second pilot signal is received from a second transmitter device, the second pilot signal indicating that the second transmitter device intends to transmit a second traffic signal. The first receiver device determines a first and a second transmission rates for traffic transmissions from the first transmitter device. A control message is then transmitted by the first receiver device to the first transmitter device including the first and second transmission rates. Subsequently, the first receiver device wirelessly receives a traffic signal including a first traffic signal from the first transmitter device including a first and a second signal components generated from a first and a second codewords, respectively.

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。 第一接收机设备从第一发射机设备接收第一导频信号。 类似地，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想要传输第二业务信号。 第一接收机设备确定用于来自第一发射机设备的业务传输的第一和第二传输速率。 然后，控制消息由第一接收机设备发送到包括第一和第二传输速率的第一发射机设备。 随后，第一接收机设备无线地接收包括来自第一发射机设备的第一业务信号的业务信号，其包括分别从第一和第二码字产生的第一和第二信号分量。

公开(公告)号：US08582492B2

公开(公告)日：2013-11-12

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：US08570972B2

公开(公告)日：2013-10-29

申请号：US12147083

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： H04W4/00

CPC分类号： H04W76/11 ,  H04W48/16

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 control 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 control 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。 使用业务控制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控制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：US08526442B2

公开(公告)日：2013-09-03

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： H04L12/28

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。