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31. 发明授权

US08774846B2 Methods and apparatus relating to wireless terminal beacon signal generation, transmission, and/or use 有权
标题翻译：与无线终端信标信号生成，传输和/或使用有关的方法和装置
公开(公告)号：US08774846B2
公开(公告)日：2014-07-08
申请号：US11621955
申请日：2007-01-10
申请人： Rajiv Laroia , Sundeep Rangan , Arnab Das , Frank A. Lane , Junyi Li
发明人： Rajiv Laroia , Sundeep Rangan , Arnab Das , Frank A. Lane , Junyi Li
IPC分类号： H04B7/00 , H04W36/00
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： A portable wireless terminal generates and transmits a beacon signal. The beacon signal includes a sequence of beacon signal bursts, each beacon signal burst including one or more beacon symbols. A beacon symbol is transmitted using the air link resources of a beacon symbol transmission unit at a relatively high transmission power level with respect to user data symbols transmitted from the same wireless terminal, thus facilitating easy detection by other wireless terminals. The beacon symbols of the beacon signal occupy a small fraction of the total available air link resources. Beacon signals can, and sometimes do, convey wireless terminal identification information, via the location of the beacon symbols within the portion of the air link resource reserved for beacon symbol transmission units.
摘要翻译：便携式无线终端生成并发送信标信号。信标信号包括信标信号脉冲序列，每个信标信号脉冲串包括一个或多个信标符号。相对于从同一无线终端发送的用户数据符号，以相对高的发送功率电平的信标符号发送单元的空中链路资源发送信标符号，便于其他无线终端的容易检测。信标信号的信标符号占据总可用空中链路资源的一小部分。信标信号可以并且有时可以通过为为信标符号传输单元预留的空中链路资源的部分内的信标符号的位置传送无线终端识别信息。

32. 发明授权

US08743843B2 Methods and apparatus relating to timing and/or synchronization including the use of wireless terminals beacon signals 有权
标题翻译：涉及定时和/或同步的方法和装置，包括使用无线终端信标信号
公开(公告)号：US08743843B2
公开(公告)日：2014-06-03
申请号：US11621957
申请日：2007-01-10
申请人： Rajiv Laroia , Sundeep Rangan , Arnab Das , Frank A. Lane , Junyi Li
发明人： Rajiv Laroia , Sundeep Rangan , Arnab Das , Frank A. Lane , Junyi Li
IPC分类号： H04J3/00
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 terminal beacon signaling is used to achieve timing synchronization between two wireless terminals in a wireless communication system, e.g., in an ad hoc network lacking a centralized timing reference. An exemplary timing structure used by an individual wireless terminal includes a beacon transmission time interval, a beacon monitoring time interval and a silence time interval. A first wireless terminal monitoring for beacon signals from other wireless terminals, detects a beacon signal portion from a second wireless terminal and determines a timing adjustment as a function of the detected beacon signal portion. The first wireless terminal applies the determined timing adjustment, e.g., time shifting its timing structure, such that its beacon signal can be detected by the second wireless terminal. Implementation of the determined timing adjustment sets the timing structures of the two wireless terminals to have a fixed relationship thereby allowing for coordinated communications including a peer-to-peer communications session.
摘要翻译：无线终端信标信令用于实现无线通信系统中的两个无线终端之间的定时同步，例如在缺乏集中定时参考的自组织网络中。单个无线终端使用的示例性定时结构包括信标发送时间间隔，信标监视时间间隔和静默时间间隔。监测来自其他无线终端的信标信号的第一无线终端从第二无线终端检测信标信号部分，并根据检测到的信标信号部分确定定时调整。第一无线终端应用确定的定时调整，例如时移其定时结构，使得其信标信号可被第二无线终端检测。确定的定时调整的实现将两个无线终端的定时结构设置为具有固定关系，从而允许包括对等通信会话的协调通信。

33. 发明授权

US07991362B2 Methods and apparatus for supporting timing and/or frequency corrections in a wireless communications system 有权
标题翻译：用于支持无线通信系统中的定时和/或频率校正的方法和装置
公开(公告)号：US07991362B2
公开(公告)日：2011-08-02
申请号：US11216770
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： H04B1/00
CPC分类号： H04B7/01 , G01S5/0009 , G01S5/0284 , H04W56/0025 , H04W56/0035 , H04W56/006 , H04W92/10
摘要： A wireless terminal determines the position of a moving base station and determines timing and/or frequency corrections. A wireless terminal 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 moving base station and determines a Doppler shift adjustment which it adds to the uplink carrier frequency or to its baseband signal. 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, e.g., a GPS derived base station position fix, is determined from downlink airlink broadcast information, e.g., for an aircraft base station. Wireless terminals may be mobile and include a GPS receiver for wireless terminal position determination.
摘要翻译：无线终端确定移动基站的位置并确定定时和/或频率校正。无线终端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移动基站的相对速度，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。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。基站位置信息，例如，GPS导出的基站位置定位，是从下行链路空中链路广播信息（例如飞机基站）确定的。无线终端可以是移动的，并且包括用于无线终端位置确定的GPS接收器。

34. 发明授权

US07471702B2 Methods and apparatus for implementing, using, transmitting, and/or receiving signals at least some of which include intentional null tones 有权
标题翻译：用于实现，使用，发送和/或接收信号的方法和装置，其中至少一些信号包括有意无效的音调
公开(公告)号：US07471702B2
公开(公告)日：2008-12-30
申请号：US11250169
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： H04B3/10
CPC分类号： H04L5/006 , H04L5/0023 , H04L5/0044
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。

35. 发明授权

US07212821B2 Methods and apparatus for performing handoffs in a multi-carrier wireless communications system 有权
标题翻译：在多载波无线通信系统中进行切换的方法和装置
公开(公告)号：US07212821B2
公开(公告)日：2007-05-01
申请号：US10964905
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
CPC分类号： H04W36/06 , H04W36/18
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的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。

36. 发明授权

US08619698B2 Enhanced beacon signaling method and apparatus 有权
标题翻译：增强型信标信号的方法和装置
公开(公告)号：US08619698B2
公开(公告)日：2013-12-31
申请号：US12106846
申请日：2008-04-21
申请人： Rajiv Laroia , Frank A. Lane , Junyi Li
发明人： Rajiv Laroia , Frank A. Lane , Junyi Li
IPC分类号： H04W4/00
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. Buy 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％。在用于传送发射机信息的音调上使用一定功率的电力购买，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率，同时仍然确保发送器信息信号将被接收的高概率并且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。

37. 发明授权

US08406795B2 Methods and apparatus for performing timing synchronization with base stations 有权
公开(公告)号：US08406795B2
公开(公告)日：2013-03-26
申请号：US12425261
申请日：2009-04-16
申请人： Frank A. Lane , Rajiv Laroia , Junyi Li
发明人： Frank A. Lane , Rajiv Laroia , Junyi Li
IPC分类号： H04B7/00
CPC分类号： H04L27/2655 , H04B7/185 , H04B7/2125 , H04L5/0007 , H04L5/0051 , H04L27/261 , H04L27/2662 , H04W48/12 , H04W56/0005 , H04W74/04 , H04W84/06 , H04W88/08
摘要： A wireless terminal using OFDM signaling supporting both terrestrial and satellite base station connectivity operates using conventional access probe signaling in a first mode of operation to establish a timing synchronized wireless link with a terrestrial base station. In a second mode of operation, used to establish a timing synchronized wireless link with a satellite base station, a slightly modified access protocol is employed. The round trip signaling time and timing ambiguity between a wireless terminal and a satellite base station is substantially greater than with a terrestrial base station. The modified access protocol uses coding of access probe signals to uniquely identify a superslot index within a beaconslot. The modified protocol uses multiple access probes with different timing offsets to further resolve timing ambiguity and allows the satellite base station access monitoring interval to remain small in duration. Terrestrial base station location/connection information is used to estimate initial timing.

38. 发明授权

US08036205B2 Methods and apparatus for supporting uplinks with remote base stations 有权
标题翻译：用于支持远程基站上行链路的方法和装置
公开(公告)号：US08036205B2
公开(公告)日：2011-10-11
申请号：US11184740
申请日：2005-07-18
申请人： Frank A. Lane , Rajiv Laroia , Junyi Li
发明人： Frank A. Lane , Rajiv Laroia , Junyi Li
IPC分类号： H04J3/06
CPC分类号： H04L27/2614 , H04B7/2125 , H04J3/0682 , H04W56/00
摘要： A wireless terminal using OFDM signaling supporting both terrestrial and satellite base station connectivity operates using conventional access probe signaling in a first mode of operation to establish a timing synchronized wireless link with a terrestrial base station. In a second mode of operation, used to establish a timing synchronized wireless link with a satellite base station, a slightly modified access protocol is employed. The round trip signaling time and timing ambiguity between a wireless terminal and a satellite base station is substantially greater than with a terrestrial base station. The modified access protocol uses coding of access probe signals to uniquely identify a superslot index within a beaconslot. The modified protocol uses multiple access probes with different timing offsets to further resolve timing ambiguity and allows the satellite base station access monitoring interval to remain small in duration. Terrestrial base station location/connection information is used to estimate initial timing.
摘要翻译：使用支持地面和卫星基站连接的OFDM信令的无线终端使用第一操作模式中的常规接入探测信令来操作，以与地面基站建立定时同步的无线链路。在用于与卫星基站建立定时同步的无线链路的第二种操作模式中，采用稍微修改的接入协议。无线终端和卫星基站之间的往返信令时间和定时模糊度远远大于地面基站。经修改的接入协议使用接入探测信号的编码来唯一地标识信标内的超频索引。经修改的协议使用具有不同定时偏移的多个接入探测器来进一步解决定时模糊度，并允许卫星基站接入监视间隔在持续时间内保持较小。地面基站位置/连接信息用于估计初始定时。

39. 发明申请

US20090316621A1 METHODS AND APPARATUS FOR PERFORMING TIMING SYNCHRONIZATION WITH BASE STATIONS 有权
标题翻译：用于与基站进行时序同步的方法和装置
公开(公告)号：US20090316621A1
公开(公告)日：2009-12-24
申请号：US12425261
申请日：2009-04-16
申请人： Frank A. Lane , Rajiv Laroia , Junyi Li
发明人： Frank A. Lane , Rajiv Laroia , Junyi Li
IPC分类号： H04J3/08 , H04L27/28 , H04W4/00
CPC分类号： H04L27/2655 , H04B7/185 , H04B7/2125 , H04L5/0007 , H04L5/0051 , H04L27/261 , H04L27/2662 , H04W48/12 , H04W56/0005 , H04W74/04 , H04W84/06 , H04W88/08
摘要： A wireless terminal using OFDM signaling supporting both terrestrial and satellite base station connectivity operates using conventional access probe signaling in a first mode of operation to establish a timing synchronized wireless link with a terrestrial base station. In a second mode of operation, used to establish a timing synchronized wireless link with a satellite base station, a slightly modified access protocol is employed. The round trip signaling time and timing ambiguity between a wireless terminal and a satellite base station is substantially greater than with a terrestrial base station. The modified access protocol uses coding of access probe signals to uniquely identify a superslot index within a beaconslot. The modified protocol uses multiple access probes with different timing offsets to further resolve timing ambiguity and allows the satellite base station access monitoring interval to remain small in duration. Terrestrial base station location/connection information is used to estimate initial timing.
摘要翻译：使用支持地面和卫星基站连接的OFDM信令的无线终端使用第一操作模式中的常规接入探测信令来操作，以与地面基站建立定时同步的无线链路。在用于与卫星基站建立定时同步的无线链路的第二种操作模式中，采用稍微修改的接入协议。无线终端和卫星基站之间的往返信令时间和定时模糊度远远大于地面基站。经修改的接入协议使用接入探测信号的编码来唯一地标识信标内的超频索引。经修改的协议使用具有不同定时偏移的多个接入探测器来进一步解决定时模糊度，并允许卫星基站接入监视间隔在持续时间内保持较小。地面基站位置/连接信息用于估计初始定时。

40. 发明申请

US20080287130A1 Base Station Base Methods and Apparatus For Supporting Break Before Making Handoffs In A Multi-Carrier System 有权
标题翻译：在多载波系统中切换之前支持断点的基站基站方法和装置
公开(公告)号：US20080287130A1
公开(公告)日：2008-11-20
申请号：US12123263
申请日：2008-05-19
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 , H04M1/00
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的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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