公开(公告)号：US20110249631A1

公开(公告)日：2011-10-13

申请号：US12756675

申请日：2010-04-08

申请人： Junyi Li ,  Saurabh Tavildar ,  Aleksandar Jovicic ,  Hongseok Kim

发明人： Junyi Li ,  Saurabh Tavildar ,  Aleksandar Jovicic ,  Hongseok Kim

IPC分类号： H04W74/00

CPC分类号： H04W72/04 ,  H04W8/005 ,  H04W16/10 ,  H04W16/14 ,  H04W72/02 ,  H04W72/0486 ,  H04W84/18

摘要： Various embodiments relate to using available spectrum for peer to peer communications and for selecting which of several possibly available channels should be used. Various methods and apparatus are well suited to peer to peer networks in which channel usage decisions are made in a decentralized manner. A wireless terminal generates a list of potential available channels to be used for peer to peer communications, e.g., based on FCC information and/or local sensing. Channels are filled in accordance with a predetermined channel ordering. A wireless terminal migrates between the channels in accordance with changes in the number of peer devices using a channel. The network, in a distributed manner, changes the number of channels in use at a location in response to changes in numbers of active peer devices at a location.

摘要翻译： 各种实施例涉及使用用于对等通信的可用频谱，并且用于选择应该使用几个可能的可用信道中的哪一个。 各种方法和装置非常适合于以分散方式进行信道使用决定的对等网络。 无线终端生成用于对等通信的潜在可用信道的列表，例如基于FCC信息和/或局部感测。 根据预定的频道顺序填充频道。 根据使用信道的对等设备的数量的变化，无线终端在信道之间迁移。 以分布式方式，网络响应于位置处的活动对等设备的数量的改变来改变在某个位置使用的信道的数量。

公开(公告)号：US20110028102A1

公开(公告)日：2011-02-03

申请号：US12510353

申请日：2009-07-28

申请人： Junyi Li ,  Saurabh Tavildar ,  Aleksandar Jovicic ,  Thomas Richardson

发明人： Junyi Li ,  Saurabh Tavildar ,  Aleksandar Jovicic ,  Thomas Richardson

IPC分类号： H04B7/00

CPC分类号： H04W74/0816

摘要： Methods and apparatus of using a licensed spectrum to transmit a signal when an unlicensed spectrum is congested are disclosed. One method includes receiving, at a first mobile device, a request signal from a second mobile device, receiving, at the first mobile device, a remote signal from one or more mobile devices using the unlicensed spectrum, and transmitting a control signal from the first mobile device to the second mobile device using the licensed spectrum, the control signal being based on the remote signal. The control signal carries control information that is based on at least one of a time at which the second mobile device sends a signal to the first mobile device or the received powers of the remote signal and the request signal.

摘要翻译： 公开了当未授权频谱拥塞时使用许可频谱来发送信号的方法和装置。 一种方法包括在第一移动设备处接收来自第二移动设备的请求信号，在第一移动设备处使用未授权频谱从一个或多个移动设备接收远程信号，以及从第一移动设备发送来自第一移动设备的控制信号 移动设备使用许可频谱的第二移动设备，控制信号基于远程信号。 控制信号携带基于第二移动设备向第一移动设备发送信号的时间或远程信号的接收功率和请求信号中的至少一个的控制信息。

公开(公告)号：US20110019601A1

公开(公告)日：2011-01-27

申请号：US12507567

申请日：2009-07-22

申请人： Junyi Li ,  Saurabh Tavildar ,  Aleksandar Jovicic ,  Thomas Richardson

发明人： Junyi Li ,  Saurabh Tavildar ,  Aleksandar Jovicic ,  Thomas Richardson

IPC分类号： G08C17/00

CPC分类号： H04W52/0229 ,  H04W56/0015 ,  H04W84/18 ,  Y02D70/142 ,  Y02D70/164 ,  Y02D70/168

摘要： Methods and apparatus for increasing power efficiency and decreasing latency of communication of a mobile device operating in an unlicensed spectrum using global timing data are disclosed. The method includes receiving, at the mobile device, the global timing data from an external timing source, the mobile device communicating in the unlicensed spectrum, obtaining, at the mobile device, a time from the global timing data, and determining, at the mobile device, a wake time to switch the mobile device from a sleep state to an active state based on the time obtained from the global timing data.

摘要翻译： 公开了使用全局定时数据提高功率效率和减少在未许可频谱中工作的移动设备的通信延迟的方法和装置。 该方法包括在移动设备处接收来自外部定时源的全球定时数据，移动设备在非许可频谱中进行通信，在移动设备处从全球定时数据获取时间，并在移动设备 基于从全局定时数据获得的时间，唤醒时间将移动设备从休眠状态切换到活动状态。

公开(公告)号：US20110019541A1

公开(公告)日：2011-01-27

申请号：US12507578

申请日：2009-07-22

申请人： Junyi Li ,  Saurabh Tavildar ,  Aleksandar Jovicic ,  Thomas Richardson

发明人： Junyi Li ,  Saurabh Tavildar ,  Aleksandar Jovicic ,  Thomas Richardson

IPC分类号： H04L12/00

CPC分类号： H04W72/085 ,  H04W16/14 ,  H04W88/06 ,  Y02D70/142 ,  Y02D70/164

摘要： Methods and apparatus of using a licensed spectrum to transmit data when an unlicensed spectrum is congested are disclosed. The method includes transmitting a first signal from a first mobile device to a second mobile device using an unlicensed spectrum, determining, at the first mobile device, whether a first response signal has been received by the first mobile device using the unlicensed spectrum, and transmitting a second signal from the first mobile device to the second mobile device using a licensed spectrum when the first response signal has not been received by the first mobile device using the unlicensed spectrum.

摘要翻译： 公开了当未许可频谱拥塞时使用许可频谱来发送数据的方法和装置。 该方法包括使用非许可频谱从第一移动设备向第二移动设备发送第一信号，在第一移动设备处确定第一移动设备是否已经使用未许可频谱接收到第一响应信号，并且发送 当第一移动设备未使用未许可频谱接收到第一响应信号时，使用许可频谱从第一移动设备到第二移动设备的第二信号。

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：US20090017850A1

公开(公告)日：2009-01-15

申请号：US12164477

申请日：2008-06-30

申请人： Aleksandar Jovicic ,  Junyi Li

发明人： Aleksandar Jovicic ,  Junyi Li

IPC分类号： H04B7/00

CPC分类号： H04W52/34 ,  H04B17/309 ,  H04B17/345 ,  H04B17/382 ,  H04W28/0236 ,  H04W72/08 ,  H04W84/18

摘要： In an ad hoc peer-to-peer communication network between wireless devices, a low priory first transmitter device adjusts it transmit power based on a received transmission request response from a higher priority second receiver device. The first transmitter device broadcasts a first transmission request to a corresponding first receiver device and may receive a first transmission request response from a different second receiver device. The second transmission request response is sent by the second receiver device in response to a second transmission request from a second transmitter device. The first transmitter device calculates an interference cost to the second receiver device as a function of the received power of the first transmission request response. A transmission power is obtained as a function of the calculated interference cost and the transmission power of the first transmission request, the transmission power to be used for traffic transmissions corresponding to the first transmission request.

摘要翻译： 在无线设备之间的自组织对等通信网络中，低级别第一发射机设备基于来自较高优先级的第二接收机设备的接收到的传输请求响应来调整发射功率。 第一发射机设备向对应的第一接收机设备广播第一传输请求，并且可以从不同的第二接收机设备接收第一传输请求响应。 响应于来自第二发射机设备的第二传输请求，第二传输请求响应由第二接收机设备发送。 第一发射机设备根据第一传输请求响应的接收功率来计算第二接收机设备的干扰成本。 根据所计算的干扰成本和第一传输请求的发送功率获得发送功率，该发送功率将用于对应于第一传输请求的业务传输。

公开(公告)号：US20090013081A1

公开(公告)日：2009-01-08

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： G06F15/16

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：US20090010244A1

公开(公告)日：2009-01-08

申请号：US11774375

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

CPC分类号： H04L5/0044 ,  H04L5/0007 ,  H04L5/0032 ,  H04W56/002 ,  H04W92/18

摘要： Methods and apparatus related to peer to peer communication networks are described. A wireless communications device supports peer to peer communications with multiple peers. The wireless communications device determines its transmit timing synchronization based on a reference signal received from a node such as a base station, a satellite, or a beacon transmitter which does not transmit user data. The wireless communications device determines a plurality of different receive timing adjustments corresponding to different peer communications devices based on signals received from those peer communications devices. The wireless communications device stores the plurality of determined receive timing adjustment information corresponding to the different peer communications devices. The wireless communications device retrieves and applies stored receive timing adjustment information which matches the particular device which transmitted the signal attempting to be recovered.

摘要翻译： 描述了与对等通信网络相关的方法和设备。 无线通信设备支持与多个对等体的对等通信。 无线通信设备基于从诸如基站，卫星或不发送用户数据的信标发射机的节点接收的参考信号来确定其发射定时同步。 无线通信设备基于从这些对等通信设备接收的信号确定对应于不同对等通信设备的多个不同的接收定时调整。 无线通信设备存储与不同的对等通信设备相对应的多个确定的接收定时调整信息。 无线通信设备检索并应用存储的接收定时调整信息，该信息与发送了尝试要恢复的信号的特定设备相匹配。

公开(公告)号：US20090010231A1

公开(公告)日：2009-01-08

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： H04Q7/24

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：US08700057B2

公开(公告)日：2014-04-15

申请号：US13350413

申请日：2012-01-13

申请人： Aleksandar Jovicic ,  Cyril Measson ,  Thomas J. Richardson

发明人： Aleksandar Jovicic ,  Cyril Measson ,  Thomas J. Richardson

IPC分类号： H04W24/00

CPC分类号： H04W64/00 ,  G01S5/0263 ,  G01S19/48 ,  H04W88/06

摘要： Various embodiments are directed to methods and apparatus for mobile device position determination and the efficient communication of mobile device position related information. In different areas different types of reference signals may be available to be used by a mobile device for position determination. Some types of references signal may be well suited for an indoor environment, e.g., audio signals, Bluetooth signals and Wi-Fi signals, while other types of signals may be well suited for an outdoor environment, e.g., GPS signals and cellular base station signals. Different types of signals may facilitate different possible resolution accuracies for a position determination. In various embodiments, in different areas within a geographic coverage region, different sets of reference signals are available to determine its position. In some embodiments, different position determination resolutions are used in different area as a function of the reference signal type which is available.

摘要翻译： 各种实施例涉及用于移动设备位置确定的方法和装置以及移动设备位置相关信息的有效通信。 在不同的区域中，不同类型的参考信号可以由移动设备用于位置确定。 一些类型的参考信号可能非常适用于室内环境，例如音频信号，蓝牙信号和Wi-Fi信号，而其它类型的信号可能非常适合室外环境，例如GPS信号和蜂窝基站信号 。 不同类型的信号可以促进用于位置确定的不同可能的分辨率精度。 在各种实施例中，在地理覆盖区域内的不同区域中，可以使用不同的参考信号集来确定其位置。 在一些实施例中，作为可用的参考信号类型的函数，在不同区域中使用不同的位置确定分辨率。