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公开(公告)号：US20090016288A1
公开(公告)日：2009-01-15
申请号：US12168698
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.
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72.发明授权Methods and apparatus for supporting multi-hop peer discovery in peer-to-peer wireless networks 有权在对等无线网络中支持多跳对等体发现的方法和装置公开(公告)号：US09247411B2
公开(公告)日：2016-01-26
申请号：US12645746
申请日：2009-12-23
摘要： Methods and apparatus for supporting multi-hop peer discovery in peer-to-peer wireless networks are disclosed. One method supports multi-hop peer discovery using a first peer having a first unique identification code. The method includes decoding a second peer discovery signal to obtain a second unique identification code and a second local identification code of a second peer received during a peer-to-peer discovery channel, determining whether to select the second peer based on a predetermined criterion; and transmitting a first peer discovery signal having the first unique identification code, the second local identification code and a hop count when the predetermined criterion is satisfied.
摘要翻译： 公开了在对等无线网络中支持多跳对等体发现的方法和装置。 一种方法支持使用具有第一唯一识别码的第一对等体的多跳对等体发现。 该方法包括解码第二对等体发现信号以获得在对等发现信道期间接收的第二对等体的第二唯一标识码和第二本地标识码，基于预定准则确定是否选择第二对等体; 以及当满足所述预定标准时，发送具有所述第一唯一识别码，所述第二本地识别码和跳数的第一对等体发现信号。
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公开(公告)号：US09119074B2
公开(公告)日：2015-08-25
申请号：US13488730
申请日：2012-06-05
CPC分类号： H04W16/10 , H04W72/0406 , H04W72/082
摘要： A method, an apparatus, and a computer program product for wireless communication are provided in which information indicating a partitioning between uplink and downlink resources is received, and communication with an access point to determine at least one of whether a downlink resource will be used for uplink or whether an uplink resource will be used for downlink is performed. Accordingly, a synchronous network may be provided where partitioning of uplink-downlink resources may be dynamically selected, which is more efficient than a synchronous network where uplink-downlink resource partitioning is global and semi-static.
摘要翻译： 提供了一种用于无线通信的方法，装置和计算机程序产品，其中接收指示上行链路和下行链路资源之间的划分的信息，以及与接入点的通信，以确定下行链路资源将被用于 上行链路或者是否将下行链路资源用于下行链路资源。 因此，可以提供同步网络，其中可以动态地选择上行链路 - 下行链路资源的划分，其比上行链路 - 下行链路资源划分是全局和半静态的同步网络更有效。
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74.发明授权Methods and apparatus for acquiring and using multiple connection identifiers 有权用于获取和使用多个连接标识符的方法和装置公开(公告)号：US09084231B2
公开(公告)日：2015-07-14
申请号：US12047741
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
摘要： Methods and apparatus related to a peer to peer wireless communications system supporting the association of multiple connection identifiers with a single connection between a pair of wireless terminals are described. A differentiated quality of service is supported by assigning different numbers of connection identifiers to different connections. The number of connection identifiers assigned to a wireless terminal pair for a connection is a function of one of: data rate, priority information, and quality of service information. Being allocated a higher number of connection identifiers results in being allocated a higher number of traffic transmission request resources, thus increasing the likelihood that the connection is permitted to use a traffic transmission segment. The allocation of connection identifiers is performed in a distributed manner in which handshake signaling occurs between a wireless terminal pair seeking to establish a connection, e.g., as part of a multi-step paging scheme.
摘要翻译： 描述了支持多个连接标识符与一对无线终端之间的单个连接的关联的对等无线通信系统相关的方法和装置。 通过为不同的连接分配不同数量的连接标识符来支持差异化的服务质量。 分配给用于连接的无线终端对的连接标识符的数量是数据速率，优先级信息和服务质量信息之一的函数。 分配更多数量的连接标识符导致分配更多数量的业务传输请求资源，从而增加连接被允许使用业务传输段的可能性。 连接标识符的分配以分布式方式执行，其中握手信号发生在寻求建立连接的无线终端对之间，例如作为多步寻呼方案的一部分。
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75.发明授权Methods and apparatus for successive interference cancellation based on rate capping in peer-to-peer networks 有权基于对等网络中的速率上限的连续干扰消除的方法和装置公开(公告)号：US08874040B2
公开(公告)日：2014-10-28
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： H04W72/00 , H04W52/32 , H04W28/22 , H04W52/26 , H04W84/18 , H04W52/24 , H04W52/16 , H04W72/08 , H04W52/22
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。
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76.发明授权Method and apparatus for synchronizing a wireless network with an external timing source 有权用于使无线网络与外部定时源同步的方法和装置公开(公告)号：US08787954B2
公开(公告)日：2014-07-22
申请号：US13349245
申请日：2012-01-12
申请人： Thomas J. Richardson , Saurabh Tavildar , Simone Merlin , Santosh Paul Abraham , Zhibin Wu , Junyi Li , Nilesh N. Khude , Hemanth Sampath
发明人： Thomas J. Richardson , Saurabh Tavildar , Simone Merlin , Santosh Paul Abraham , Zhibin Wu , Junyi Li , Nilesh N. Khude , Hemanth Sampath
IPC分类号： H04B15/00
CPC分类号： H04W56/0015
摘要： A communications device synchronizes itself with respect to an external reference signal, e.g., a GPS signal. The communications device detects timing reference signals, e.g., beacon signals, from a communications network. If the communications device determines that the network is not synchronized to the external timing reference signal, the communications device operates as a master timing control device. In various embodiments, when operating as a master timing control device the wireless communications device communicates time stamps, e.g., in beacon signals, which indicate a greater passage of time than the actual passage of time. When operating as a master timing control device the communications device transmits network timing reference signals at a higher rate than is being used by the network to seize control of network timing and become the master timing control device. The communications device drives the network timing to synchronize network timing to the external timing reference.
摘要翻译： 通信设备相对于外部参考信号（例如，GPS信号）进行自身同步。 通信设备从通信网络检测定时参考信号，例如信标信号。 如果通信设备确定网络不与外部定时参考信号同步，则通信设备作为主定时控制设备工作。 在各种实施例中，当作为主定时控制设备操作时，无线通信设备传送时间戳，例如在信标信号中，其指示比实际的时间流逝更大的时间流逝。 当作为主定时控制装置工作时，通信装置以比由网络使用的速率更高的速率发送网络定时参考信号，以占用网络定时的控制并成为主定时控制装置。 通信设备驱动网络定时以将网络定时与外部定时参考值进行同步。
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公开(公告)号：US08693336B2
公开(公告)日：2014-04-08
申请号：US12267923
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： H04W28/24
摘要： Methods and apparatus for making communications decisions are described. In some embodiments, a method includes recovering a first quality of service level from a first transmission request signal directed to a second communications device, and making a decision whether or not to transmit traffic data to a third communications device based on the recovered first quality of service level. In other embodiments a method includes recovering a first quality of service level from a first transmission request signal, and making a decision whether or not to transmit a first transmission request response signal in response to a second transmission request signal based on the recovered first quality of service level. In some embodiments, the phase of the transmission request signal is used to communicate the quality of service level. The device transmitting the transmission request signal 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，一种方法包括从指向第二通信设备的第一传输请求信号恢复第一服务质量等级，以及基于恢复的第一质量来决定是否向第三通信设备发送业务数据 服务水平。 在其他实施例中，一种方法包括从第一传输请求信号恢复第一服务质量等级，并且基于恢复的第一质量判定是否响应于第二传输请求信号来发送第一传输请求响应信号 服务水平。 在一些实施例中，传输请求信号的相位用于传达服务质量水平。 发送发送请求信号的装置也可以发送可用作相位参考信号的导频。
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78.发明授权Methods and apparatus for channel estimation and rate feedback in a peer to peer network 有权对等网络中的信道估计和速率反馈的方法和装置公开(公告)号：US08687479B2
公开(公告)日：2014-04-01
申请号：US12166675
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： H04J11/00
CPC分类号： H04L25/0226 , H04B7/15542 , H04L1/0002 , H04L1/0023 , H04L1/20 , H04L5/0007 , H04L5/0033 , H04L5/0044 , H04L5/0048 , H04L5/006 , H04L25/0228 , H04L27/2647 , H04L47/10 , H04L47/14 , H04L47/263 , H04W28/12 , H04W72/02 , H04W72/085
摘要： Methods and apparatus for performing channel estimation and reporting back channel information or other information such as a suggested traffic transmission rate are described. A signal including a pilot signal of interest is received. Portions of the signal corresponding to the pilot signal are analyzed to determine if any of the portions, e.g., signal portions corresponding to individual tone symbols used to communicate the pilot signal, were subject to excessive interference, such as might be the result of collisions, rendering the signal portions unreliable. Signal sub-portions determined to be unreliable are excluded from a determination of the amount of pilot signal energy that was received. Signal interference is determined from a portion of the received signal on which the pilot signal was not transmitted. Channel information in the form of information and/or a suggested traffic rate may be reported back to the device which transmitted the pilot signal.
摘要翻译： 描述用于执行信道估计和报告返回信道信息或诸如建议的业务传输速率的其他信息的方法和装置。 接收包括感兴趣的导频信号的信号。 分析对应于导频信号的信号的部分，以确定是否有任何部分，例如，对应于用于传送导频信号的各个音调符号的信号部分遭受过度干扰，例如可能是碰撞的结果， 使信号部分不可靠。 被确定为不可靠的信号子部分从接收到的导频信号能量的确定中排除。 信号干扰是从不在其上传送导频信号的接收信号的一部分确定的。 以信息形式和/或建议的业务速率的信道信息可以被报告回发送导频信号的设备。
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公开(公告)号：US20130308524A1
公开(公告)日：2013-11-21
申请号：US13471690
申请日：2012-05-15
CPC分类号： H04W72/1242 , H04W84/045
摘要： A method, a computer program product, and an apparatus are provided. In a first configuration, an AP receives a transmission request from a UE in a communication link with the AP. The AP determines whether to yield a transmission request response to the transmission request based on one or more transmission requests received from at least one communication link with at least one other AP, but not from UEs in communication links with the AP. In a second configuration, an AP receives a transmission request response from a UE in a communication link with the AP. The AP determines whether to yield a data transmission to the UE based on one or more transmission requests responses received from at least one communication link with at least one other AP, but not from UEs in communication links with the AP.
摘要翻译： 提供了一种方法，计算机程序产品和装置。 在第一配置中，AP在与AP的通信链路中从UE接收传输请求。 AP基于从与至少一个其他AP的至少一个通信链路接收的一个或多个传输请求，而不是来自与AP的通信链路的UE，是否产生对传输请求的传输请求响应。 在第二种配置中，AP在与AP的通信链路中从UE接收传输请求响应。 AP基于从与至少一个其他AP的至少一个通信链路接收的一个或多个传输请求响应，而不是来自与AP的通信链路中的UE，是否产生到UE的数据传输。
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公开(公告)号：US08583159B2
公开(公告)日：2013-11-12
申请号：US12708084
申请日：2010-02-18
IPC分类号： H04B7/00
CPC分类号： H04W52/241 , H04W52/267 , H04W52/286
摘要： Methods and apparatus of varying transmit power of signals for increasing system throughput and spectral reuse in an unlicensed spectrum are disclosed. One method includes transmitting from a first mobile device to a second mobile device a request to send (RTS) signal having a first transmit data power level based on a channel gain between the first mobile device and the second mobile device, receiving, at the first mobile device, a clear to send (CTS) signal from the second mobile device, and transmitting data at the first transmit data power level from the first mobile device to the second mobile device.
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