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    Selecting between multiple carriers based on signal energy measurements
    1.
    发明公开
    Selecting between multiple carriers based on signal energy measurements 审中-公开
    基于信号能量测量多个运营商之间进行选择

    公开(公告)号：EP2621215A1

    公开(公告)日：2013-07-31

    申请号：EP13020007.4

    申请日：2004-10-15

    申请人： QUALCOMM Incorporated

    发明人： Laroia, Rajiv ,  Li, Junyi ,  Lane, Frank A.

    IPC分类号： H04W36/08

    CPC分类号： H04L1/20 ,  H04B1/005 ,  H04B1/1027 ,  H04B1/406 ,  H04B17/327 ,  H04B17/382 ,  H04L5/023 ,  H04L27/261 ,  H04W24/00 ,  H04W36/30 ,  H04W48/08 ,  H04W72/02 ,  H04W72/0453

    摘要： Carrier frequency selection and handoff initiation methods in wireless communications systems employing multiple carrier frequencies are described. Although the receiver is tuned to a single band, based on the relative energy of one or more beacon signal components corresponding to the currently used carrier and one or more beacon signal components corresponding to an alternative carrier, a carrier selection and a handoff determination is made. Mobile nodes can use a single RF chain with a controllable RF filter to receive and process a signal within a first selected carrier band including components from different transmitters, e.g., a first signal component identified with the first currently selected band and a second signal component identified with a second alternative band.; The signal components, e.g., beacon signal components from different transmitters may be obtained from a signal which corresponds to multiple symbol transmission time periods. Separate signal energy measurements are performed on the first and second signal components. The signal component energy is compared, and a determination is made as to whether a handoff should be initiated.

    摘要翻译： 载波频率的选择和切换发起方法在无线通信系统中使用多个载波频率中有描述。 虽然接收器被调谐到的单一条带，基于一个或多个信标信号分量对应于当前使用的载波和一个或多个信标信号分量在备选载波对应的相对能量，载波的选择和切换判定 ， 移动节点可以使用单个RF链具有可控RF滤波器以接收和处理第一选定载带包含由不同的发射机，例如，与第一当前选择的带，并确定了第二信号分量识别的第一信号分量的部件内的信号 与第二替代频带 - .; 的信号分量，从不同的发射机E. G.信标信号分量从对应于多个符号传输时间周期的信号来获得。 单独的信号能量测量来执行对所述第一和第二信号分量。 该信号是能源相比，并确定作出是否切换应该启动。

    Methods and apparatus for performing timing synchronization with base stations
    3.
    发明公开
    Methods and apparatus for performing timing synchronization with base stations 有权
    一种用于与基站进行时间同步的方法和装置

    公开(公告)号：EP2048796A2

    公开(公告)日：2009-04-15

    申请号：EP09000656.0

    申请日：2006-06-12

    申请人： Qualcomm Incorporated

    发明人： Lane, Frank A. ,  Laroia, Rajiv ,  Li, Junyi

    IPC分类号： H04B7/212

    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 signalling supporting both terrestrial and satellite base station connectivity operates using conventional access probe signalling in a first mode of operation to establish a timing synchronized wireless link with a terrestrial base station, hi 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 signalling 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OFDM信令支持地面和卫星基站连接的无线终端操作使用常规的接入探针在操作的第一模式的信令来建立同步的无线链路与地面基站的定时。在第二操作模式，用于建立一 定时同步的无线链路与卫星基站，稍微修改接入协议采用。 往返信令时间和时序模糊的无线终端和卫星基站之间实质上比与地面基站更大。 所述修改的访问协议使用接入探测信号的编码，以在信标时隙内唯一地标识一个超时隙索引。 经修改协议使用多个接入探针用不同的定时偏移つweiterer决心定时模糊度和允许该卫星基站访问监视间隔的持续时间保持小。 陆地基站的位置/连接信息被用于估计初始定时。

    Methods and apparatus for performing timing synchronization with base stations
    4.
    发明公开
    Methods and apparatus for performing timing synchronization with base stations 有权

    公开(公告)号：EP2048795A2

    公开(公告)日：2009-04-15

    申请号：EP09000655.2

    申请日：2006-06-12

    申请人： Qualcomm Incorporated

    发明人： Lane, Frank A. ,  Laroia, Rajiv ,  Li, Junyi

    IPC分类号： H04B7/212

    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 signalling supporting both terrestrial and satellite base station connectivity operates using conventional access probe signalling in a first mode of operation to establish a timing synchronized wireless link with a terrestrial base station, hi 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 signalling 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.

    Methods and apparatus for performing timing synchronization with base stations
    9.
    发明公开
    Methods and apparatus for performing timing synchronization with base stations 有权
    一种用于与基站进行时间同步的方法和装置

    公开(公告)号：EP2048797A3

    公开(公告)日：2009-09-16

    申请号：EP09000657.8

    申请日：2006-06-12

    申请人： Qualcomm Incorporated

    发明人： Lane, Frank A. ,  Laroia, Rajiv ,  Li, Junyi

    IPC分类号： H04B7/212

    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 signalling supporting both terrestrial and satellite base station connectivity operates using conventional access probe signalling in a first mode of operation to establish a timing synchronized wireless link with a terrestrial base station, hi 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 signalling 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.