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。

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。

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。

公开(公告)号：US06993333B2

公开(公告)日：2006-01-31

申请号：US10964908

申请日：2004-10-14

申请人： Rajiv Laroia ,  Frank A. Lane

发明人： Rajiv Laroia ,  Frank A. Lane

IPC分类号： H04Q7/20

CPC分类号： H04W36/0072 ,  H04L5/0042 ,  H04L5/0048 ,  H04L5/0053 ,  H04L27/2602 ,  H04W36/08

摘要： A wireless communications system, e.g., an OFDM system, uses a plurality of carrier frequencies each with an associated frequency band. A base station sector transmitter in the system transmits ordinary signaling, e.g., user data, in its own assigned band. In addition the sector base station transmitter periodically transmits beacon signals into its own frequency band and the frequency bands used by adjacent sector transmitters for their ordinary signaling. Beacon signals, being short duration high power signals with sector transmission power concentrated on one or a few tones, are easily detectable. Each beacon signal may be identified as to the source base station sector transmitter, e.g., based on tone. A mobile node, tuned to a single carrier band, receives a plurality of beacon signals, identifies the sources of the received beacons, compares the received strength of the beacons, and makes handoff decisions, without having to switch carrier band.

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。

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.

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。

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。

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。

公开(公告)号：US07403470B2

公开(公告)日：2008-07-22

申请号：US11184051

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： H04J11/00

CPC分类号： H04L5/023 ,  G06Q50/22 ,  H04B7/1853 ,  H04L1/16 ,  H04L27/261 ,  H04L27/2614

摘要： An OFDM wireless communications system includes terrestrial and satellite based base stations. Mobile nodes support two uplink modes of operation, multi-tone mode for terrestrial station interaction and single tone mode for satellite base station interaction. In single tone mode the peak to average power ratio is lower than in the multi-tone mode allowing the same power amplifier to transmit higher average power signals and thus extend range and reach a satellite in geostationary orbit. In multi-tone mode, the mobile node: is temporarily assigned a multi-tone uplink traffic channel segment for user data, is assigned a dedicated control channel for uplink control signals, and supports slaved Ack/Nak for traffic channels. In single tone mode, the mobile node: is assigned a single logical uplink dedicated tone to use for transmitting both user data and control data, and does not use a slaved Ack/Nak mechanism for traffic channels.

摘要翻译： OFDM无线通信系统包括基于地面和卫星的基站。 移动节点支持两种上行工作模式，用于地面站交互的多音模式和用于卫星基站交互的单音模式。 在单音模式下，峰值与平均功率比低于多音调模式，允许相同的功率放大器传输较高的平均功率信号，从而扩展距离并到达地球静止轨道的卫星。 在多音模式下，移动节点临时分配用于用户数据的多音调上行业务信道段，为上行控制信号分配专用控制信道，并支持业务信道的从属Ack / Nak。 在单音模式中，移动节点被分配用于传送用户数据和控制数据的单个逻辑上行专用音调，并且不对业务信道使用从属的Ack / Nak机制。