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1. 发明授权

US08902865B2 Wireless communication methods and apparatus supporting multiple modes 有权
标题翻译：支持多种模式的无线通信方式和装置
公开(公告)号：US08902865B2
公开(公告)日：2014-12-02
申请号：US11621983
申请日：2007-01-10
申请人： Rajiv Laroia , Frank A. Lane , Junyi Li , Tom Richardson
发明人： Rajiv Laroia , Frank A. Lane , Junyi Li , Tom Richardson
IPC分类号： H04W4/00 , H04L5/00 , H04W16/14 , H04W72/02 , H04W8/00 , H04L27/26 , H04W48/20 , H04W36/16 , H04W88/10 , H04W52/02 , H04W36/24 , H04W88/04 , H04J3/06 , H04W48/08 , H04W88/06 , H04W84/18 , H04W40/24 , H04W28/04 , H04W28/18 , H04W48/16 , H04W88/02 , H04W84/04 , H04W52/04
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 , Y02D70/1222 , Y02D70/1224 , Y02D70/1242 , Y02D70/1262 , Y02D70/142 , Y02D70/144 , Y02D70/146 , Y02D70/162 , Y02D70/164 , Y02D70/168 , Y02D70/22 , Y02D70/23
摘要： Wireless terminal operation is coordinated to be responsive to dynamic communications frequency spectrum reallocation between infrastructure based communications usage and peer to peer communications usage. Methods and apparatus in which mobile nodes switch between cellular and peer to peer communication modes of operation are described. Broadcast signals, e.g., beacon signals, are monitored and detected by the mobile node to ascertain a current spectrum usage designation, and the mobile node switches operational modes in response to detected changes in the broadcast signals.
摘要翻译：协调无线终端操作以响应基于基础设施的通信使用和对等通信使用之间的动态通信频谱重新分配。描述移动节点在蜂窝和对等通信操作模式之间切换的方法和装置。诸如信标信号的广播信号被移动节点监视和检测以确定当前频谱使用指定，并且移动节点响应于广播信号中检测到的改变来切换操作模式。

2. 发明授权

US08885572B2 Wireless communication methods and apparatus using beacon signals 有权
标题翻译：使用信标信号的无线通信方法和装置
公开(公告)号：US08885572B2
公开(公告)日：2014-11-11
申请号：US11652245
申请日：2007-01-10
申请人： Rajiv Laroia , Frank A. Lane , Junyi Li , Tom Richardson
发明人： Rajiv Laroia , Frank A. Lane , Junyi Li , Tom Richardson
IPC分类号： H04W4/00 , H04W40/00 , H04W72/00 , H04W48/20 , H04W52/02 , H04L27/26 , H04W8/00 , H04W16/14 , H04W88/10 , H04W36/16 , H04W72/02 , H04W28/18 , H04J3/06 , H04W84/18 , H04W48/08 , H04W52/04 , H04L5/00 , H04W40/24 , H04W88/02 , H04W88/04 , H04W36/24 , H04W84/04 , H04W48/16 , H04W88/06 , H04W28/04
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 , Y02D70/1222 , Y02D70/1224 , Y02D70/1242 , Y02D70/1262 , Y02D70/142 , Y02D70/144 , Y02D70/146 , Y02D70/162 , Y02D70/164 , Y02D70/168 , Y02D70/22 , Y02D70/23
摘要： Methods and apparatus supporting peer to peer communications are discussed. A base station, serving as an access node for wireless terminals also communicates information supporting peer to peer communications. A base station transmits a beacon signal conveying information about a peer to peer frequency band and also receives user data from a plurality of wireless terminals, using the base station as a current point of network attachment. In some embodiments, the beacon signal is transmitted into the same frequency band being used for access node based communications and identifies a different frequency band which is to be used as a peer to peer frequency band. Alternatively, or in addition, in support of peer to peer communications, a beacon signal transmission apparatus, a free standing device which doesn't transmit user data, transmits a sequence of beacon signal bursts, each beacon signal burst including at least one high power beacon symbol.
摘要翻译：讨论了支持对等通信的方法和设备。作为无线终端的接入节点的基站还通信支持对等通信的信息。基站发送传达关于对等频带的信息的信标信号，并且使用基站作为网络附着的当前点从多个无线终端接收用户数据。在一些实施例中，信标信号被发送到用于基于接入节点的通信的相同频带中，并且识别要用作对等频带的不同频带。或者或另外，为了支持对等通信，信标信号发送装置，不发送用户数据的独立装置发送信标信号突发序列，每个信标信号突发包括至少一个高功率信标符号。

3. 发明授权

US08798638B2 Methods and apparatus for providing base station position information and using position information to support timing and/or frequency corrections 有权
标题翻译：用于提供基站位置信息和使用位置信息以支持定时和/或频率校正的方法和装置
公开(公告)号：US08798638B2
公开(公告)日：2014-08-05
申请号：US11216973
申请日：2005-08-31
申请人： Frank A. Lane , Rajiv Laroia , Junyi Li
发明人： Frank A. Lane , Rajiv Laroia , Junyi Li
IPC分类号： H04W24/00
CPC分类号： H04W4/02 , H04B7/01 , H04W56/0025 , H04W56/0035 , H04W56/006 , H04W64/00 , H04W88/005 , H04W92/10
摘要： A wireless terminal receives base station position over an airlink, determines its relative position with respect to the base station and determines a timing adjustment correction. The wireless terminal applies the determined timing correction to control uplink signaling timing and achieve synchronization at the base station's receiver. The wireless terminal determines its relative velocity with respect to the base station and determines a Doppler shift adjustment which it adds to the uplink carrier frequency or to its baseband signal. A wireless terminal determines the position of a moving base station and determines timing and/or frequency corrections. Base station position is determined from the current time and stored information correlating the base station position with time, e.g., for a geo-synchronous satellite. Base station position information is determined from broadcast information, e.g., GPS base station position, for an aircraft base station. Wireless terminals may be mobile and include a GPS receiver for WIRELESS TERMINAL position determination.
摘要翻译：无线终端通过空中链路接收基站位置，确定其相对于基站的相对位置，并确定定时调整校正。无线终端应用所确定的定时校正以控制上行链路信令定时，并在基站的接收机处实现同步。无线终端确定其相对于基站的相对速度，并确定其添加到上行链路载波频率或其基带信号的多普勒频移调整。无线终端确定移动基站的位置并确定定时和/或频率校正。基站位置是从当前时间确定的，并存储与基站位置和时间相关的信息，例如用于地理同步卫星。从飞机基站的广播信息（例如，GPS基站位置）确定基站位置信息。无线终端可以是移动的，并且包括用于WIRELESS TERMINAL位置确定的GPS接收器。

4. 发明授权

US08750262B2 Communications methods and apparatus related to beacon signals some of which may communicate priority information 有权
标题翻译：与信标信号相关的通信方法和装置，其中一些可以传送优先级信息
公开(公告)号：US08750262B2
公开(公告)日：2014-06-10
申请号：US11621984
申请日：2007-01-10
申请人： Rajiv Laroia , Frank A. Lane , Junyi Li , Tom Richardson
发明人： Rajiv Laroia , Frank A. Lane , Junyi Li , Tom Richardson
IPC分类号： H04W4/00
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 , Y02D70/1222 , Y02D70/1224 , Y02D70/1242 , Y02D70/1262 , Y02D70/142 , Y02D70/144 , Y02D70/146 , Y02D70/162 , Y02D70/164 , Y02D70/168 , Y02D70/22 , Y02D70/23
摘要： Wireless terminals receive beacon signals from other communication devices and make transmission decisions based on priority information communicated by the beacon signals. Priority information communicated in a beacon signal includes, e.g., one of device priority, user priority and session priority. A wireless terminal compares priority information recovered from received beacon signals with its own current level of priority. A transmission decision based on received priority information includes deciding not to transmit user data when received priority information indicates a higher priority than its own priority level. Another transmission decision based on received priority information includes deciding to transmit user data when the received priority information indicates a lower priority than its own priority level. Other exemplary transmission decisions, performed as a function of priority information from beacon signals, include deciding to perform a transmission power level adjustment and deciding to terminate an ongoing communications session.
摘要翻译：无线终端从其他通信设备接收信标信号，并根据信标信号传送的优先级信息进行传输决策。在信标信号中传送的优先级信息包括例如设备优先级，用户优先级和会话优先级之一。无线终端将从接收到的信标信号恢复的优先级信息与其自身的当前优先级进行比较。基于接收到的优先级信息的传输决定包括当接收到的优先级信息指示比其自身的优先级高的优先级时决定不发送用户数据。基于接收到的优先级信息的另一传输决定包括当接收的优先级信息表示比其自身的优先级低的优先级时决定发送用户数据。作为来自信标信号的优先级信息的函数执行的其他示例性传输决策包括决定执行传输功率电平调整并决定终止正在进行的通信会话。

5. 发明授权

US07826807B2 Methods and apparatus for antenna control in a wireless terminal 有权
标题翻译：无线终端天线控制方法及装置
公开(公告)号：US07826807B2
公开(公告)日：2010-11-02
申请号：US11249775
申请日：2005-10-13
申请人： Rajiv Laroia , Junyi Li , Frank A. Lane
发明人： Rajiv Laroia , Junyi Li , Frank A. Lane
IPC分类号： H04B1/66
CPC分类号： H04B7/088 , H04B7/0811 , H04B7/0848
摘要： Base stations transmit strip signals using strip signal segments and self supporting modulation scheme techniques facilitating rapid channel estimate. A strip segment occupies one OFDM symbol time interval and uses a set of downlink tones; some, e.g., half, of the tones are left unused facilitating SIR measurement. The strip segments are advantageously timed to correspond to uplink access intervals in which connected wireless terminals do not typically transmit uplink signals. Connected wireless terminals including: multiple antennas used in combination, an antenna duplex module, single RF receiver chain and single RF transmitter chain, switch antenna coefficient combinations based on strip signal segment timing. The wireless terminal determines an independent downlink channel quality measurement, e.g., SNR and/or SIR for each strip signal segment and for on-going non-strip signaling. The wireless terminal compares channel quality measurements and selects an antenna coefficient combination to be used during non-strip signaling intervals obtaining very good antenna gain.
摘要翻译：基站使用带状信号段和自支持调制方案技术来传输带状信号，这有助于快速信道估计。条带占用一个OFDM符号时间间隔并使用一组下行链路音调; 一些，例如一半的音调被置于未使用状态，便于SIR测量。带状段有利地被定时以对应于其中连接的无线终端通常不发送上行链路信号的上行链路接入间隔。连接的无线终端包括：组合使用多个天线，天线双工模块，单个射频接收机链和单个射频发射机链，基于条带信号段定时的开关天线系数组合。无线终端确定独立的下行链路信道质量测量，例如每个条带信号段的SNR和/或SIR，以及用于正在进行的非条带信令。无线终端比较信道质量测量并选择在非剥离信令间隔期间使用的天线系数组合，从而获得非常好的天线增益。

6. 发明授权

US07610024B2 Methods and apparatus of providing transmit and/or receive diversity with multiple antennas in wireless communication systems 有权
标题翻译：在无线通信系统中提供与多个天线的发射和/或接收分集的方法和装置
公开(公告)号：US07610024B2
公开(公告)日：2009-10-27
申请号：US11284285
申请日：2005-11-21
申请人： Rajiv Laroia , Junyi Li , Sundeep Rangan , Murari Srinivasan , Frank A. Lane , Prashanth Hande
发明人： Rajiv Laroia , Junyi Li , Sundeep Rangan , Murari Srinivasan , Frank A. Lane , Prashanth Hande
IPC分类号： H04B7/06
CPC分类号： H04B7/0604 , H01Q3/24 , H01Q3/2605 , H04B7/061 , H04B7/0691 , H04B7/0805 , H04L1/0026 , H04L5/0007 , H04L5/0023 , H04L5/0026 , H04L5/006 , H04W52/42
摘要： Transmit and/or receive diversity is achieved using multiple antennas. In some embodiments, a single transmitter chain within a wireless terminal is coupled over time to a plurality of transmit antennas. At any given time, a controllable switching module couples the single transmitter chain to one the plurality of transmit antennas. Over time, the switching module couples the output signals from the single transmitter chain to different transmit antennas. Switching decisions are based upon predetermined information, dwell information, and/or channel condition feedback information. Switching is performed on some dwell and/or channel estimation boundaries. In some OFDM embodiments, each of multiple transmitter chains is coupled respectively to a different transmit antenna. Information to be transmitted is mapped to a plurality of tones. Different subsets of tones are formed for and transmitted through different transmit chain/antenna sets simultaneously. The balance of tones allocated to the subsets for each antenna are changed as a function of predetermined information, dwell information, and/or channel condition feedback information.
摘要翻译：使用多个天线实现发射和/或接收分集。在一些实施例中，无线终端内的单个发射机链随时间耦合到多个发射天线。在任何给定时间，可控开关模块将单个发射机链耦合到多个发射天线中的一个。随着时间的推移，开关模块将来自单个发射机链的输出信号耦合到不同的发射天线。切换决定基于预定信息，停留信息和/或信道条件反馈信息。在一些驻留和/或信道估计边界上执行切换。在一些OFDM实施例中，多个发射机链中的每一个分别耦合到不同的发射天线。要发送的信息被映射到多个音调。为不同的发射链/天线组同时形成和发送不同的音调子集。分配给每个天线的子集的音调的平衡作为预定信息，停留信息和/或信道条件反馈信息的函数而改变。

7. 发明授权

US07388845B2 Multiple access wireless communications system using a multisector configuration 失效
标题翻译：多址无线通信系统使用多节点配置
公开(公告)号：US07388845B2
公开(公告)日：2008-06-17
申请号：US10640861
申请日：2003-08-13
申请人： Rajiv Laroia , Frank A. Lane , Junyi Li
发明人： Rajiv Laroia , Frank A. Lane , Junyi Li
IPC分类号： H04B7/212 , G08C17/00
CPC分类号： H04W52/34 , H04B7/12 , H04L27/2662 , H04W52/343 , H04W52/42
摘要： Power control methods and apparatus for use in a sectorized cell of an OFDM communications system are described. Each sector of a cell uses the same frequencies and transmission times and is synchronized with the other sectors in the cell in terms of tone frequencies used at any given time and symbol transmission times. Tones are allocated to channels in each cell in the same manner so that each channel in a sector has a corresponding channel in another sector. Power differences between channels in different sectors are maintained to be within a pre-selected power difference. Different channels in a cell are assigned different power levels. Wireless terminals are assigned to channels based on channel feedback information. Wireless terminals with poor channel conditions are allocated to higher power channels than wireless terminals with good channel conditions. Lower power channels often include more tones per symbol time than high power channels.
摘要翻译：描述了在OFDM通信系统的扇区化小区中使用的功率控制方法和装置。单元的每个扇区使用相同的频率和传输时间，并且根据在任何给定时间和符号传输时间使用的音调频率与小区中的其他扇区同步。以相同的方式将音调分配给每个小区中的信道，使得扇区中的每个信道在另一个扇区中具有相应的信道。不同扇区中的信道之间的功率差被维持在预先选择的功率差之内。单元中的不同通道被分配不同的功率电平。基于信道反馈信息将无线终端分配给信道。具有较差信道条件的无线终端分配给具有良好信道条件的无线终端的较高功率信道。低功率通道通常每个符号时间包括比高功率通道更多的音调。

8. 发明授权

US07379446B2 Enhanced beacon signaling method and apparatus 失效
标题翻译：增强型信标信号的方法和装置
公开(公告)号：US07379446B2
公开(公告)日：2008-05-27
申请号：US10965011
申请日：2004-10-14
申请人： Rajiv Laroia , Frank A. Lane , Junyi Li
发明人： Rajiv Laroia , Frank A. Lane , Junyi Li
IPC分类号： H04J3/00 , H04J4/00 , H04B7/00
CPC分类号： H04L5/0044 , H04L5/0048 , H04L5/0053
摘要： Methods and apparatus for using high power narrow signals, e.g., tones, for communicating transmitter information without putting the full transmission power available into the transmitted tone or tones are described. User data is transmitted in parallel with transmitter information in many embodiments with the user data being allocated more than 20% of the transmitter's maximum output power in many cases. By using an amount of power on the tones used to communicate transmitter information while simultaneously transmitting user data with more than 20% of the available transmission power, efficient bandwidth utilization is achieved while still ensuring a high probability that that the transmitter information signals will be received and detectable using simple energy detection techniques and without the need for timing synchronization with the transmitter to be achieved for success interpretation of the transmitter information.
摘要翻译：描述了使用高功率窄信号（例如音调）用于传送发射机信息而不将全部传输功率可用的传输音调或音调的方法和装置。在许多实施例中，用户数据与发射机信息并行传输，在许多情况下用户数据被分配超过发射机最大输出功率的20％。通过对用于传送发射机信息的音调使用一定的功率，同时以超过20％的可用传输功率发送用户数据，实现有效的带宽利用，同时仍然确保发送器信息信号将被接收的高概率，可以使用简单的能量检测技术进行检测，并且不需要与发射机的定时同步来实现发射机信息的成功解释。

9. 发明授权

US07366200B2 Beacon signaling in a wireless system 失效
标题翻译：信标信号在无线系统中
公开(公告)号：US07366200B2
公开(公告)日：2008-04-29
申请号：US10642096
申请日：2003-08-14
申请人： Rajiv Laroia , Frank A. Lane , Junyi Li
发明人： Rajiv Laroia , Frank A. Lane , Junyi Li
IPC分类号： H04J4/00
CPC分类号： H04W52/34 , H04B7/12 , H04L27/2662 , H04W52/42
摘要： A few high power tones used for synchronization and/or other purposes are transmitted in a FDM system during a period of time into a region, e.g., sector of a cell, e.g., a symbol transmission time period. During normal data transmission symbol periods signals are transmitted using at least 10 tones, e.g., per symbol time. Less than 5 high power signals are transmitted in a symbol time with at least 80% the maximum total transmitter power used for transmitting into said region being allocated to the high power signals where the maximum total transmitter power is determined from a period of time which may includes one or more data and/or high power tone transmission periods. When the high power tones are transmitted at most 20% of transmitter power used for transmitting into the region is available for transmitting other tones with the power normally being distributed among multiple tones. Often some tones which would be transmitted in a symbol time go unused during transmission of the high power signals.
摘要翻译：用于同步和/或其他目的的一些高功率音调在FDM系统中在一段时间内被传送到区域，例如小区的扇区，例如符号传输时间段。在正常数据传输期间，使用至少10个音调，例如每个符号时间发送信号。少于5个高功率信号以符号时间传输，其中至少80％用于发送到所述区域的最大总发射机功率被分配给高功率信号，其中最大总发射机功率是从一段时间确定的包括一个或多个数据和/或高功率音调传输周期。当用于发送到该区域的发射机功率的最多20％发送高功率音调可用于发送其他音调时，功率通常在多个音调之间分配。通常，在传输高功率信号期间，将以符号时间传输的一些音调将不被使用。

10. 发明授权

US07047009B2 Base station based methods and apparatus for supporting break before make handoffs in a multi-carrier system 有权
标题翻译：在多载波系统中进行切换之前，用于支持断点的基站的方法和装置
公开(公告)号：US07047009B2
公开(公告)日：2006-05-16
申请号：US10964945
申请日：2004-10-14
申请人： Rajiv Laroia , Junyi Li , Frank A. Lane
发明人： Rajiv Laroia , Junyi Li , Frank A. Lane
IPC分类号： H04Q7/20 , H04Q7/00
CPC分类号： H04W36/18 , H04W36/06
摘要： A mobile communications device initiates a handoff from its current base station (BS) sector network attachment point to a new BS sector. The mobile sends a handoff request over its current wireless link to the current BS sector, which forwards the request to the new BS sector, e.g., via a network link. The new BS sector processes the request assigning dedicated resources, e.g., an identifier and dedicated uplink segments. Information identifying the allocated resources is conveyed from the new BS sector via the current BS sector to the mobile. The mobile determines the time of the allocated dedicated segments based upon a received beacon signal from the new BS sector with known timing relationships to dedicated segments. The mobile breaks the original wireless link just prior to the time of the first assigned dedicated segment. The mobile communicates information on the assigned dedicated segments to perform registration operations, e.g., timing synchronization and power control, establishing a new wireless link.
摘要翻译：移动通信设备发起从其当前基站（BS）扇区网络连接点到新的BS扇区的切换。移动台通过其当前的无线链路向当前BS扇区发送切换请求，该BS扇区将该请求转发到新的BS扇区，例如经由网络链路。新BS部门处理分配专用资源的请求，例如标识符和专用上行链路段。识别分配的资源的信息从新的BS扇区通过当前BS扇区传送到移动台。移动台基于来自新BS扇区的接收到的信标信号确定所分配的专用段的时间，具有与专用段的已知定时关系。移动台在第一个分配的专用段之前就打破原始的无线链路。移动台在分配的专用段上传送信息以执行注册操作，例如定时同步和功率控制，建立新的无线链路。

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