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    Coordinating communications in a heterogeneous communications network using different signal formats
    2.
    发明授权
    Coordinating communications in a heterogeneous communications network using different signal formats 有权
    使用不同的信号格式协调异构通信网络中的通信

    公开(公告)号：US07555004B2

    公开(公告)日：2009-06-30

    申请号：US10774200

    申请日：2004-02-06

    申请人： Philip Orlik ,  Andreas Molisch

    发明人： Philip Orlik ,  Andreas Molisch

    IPC分类号： H04L12/413 ,  H04L12/28 ,  H04L12/56 ,  H04W4/00

    CPC分类号： H04W74/02 ,  H04W74/08

    摘要： A method communicates data between terminals in heterogeneous communications network. A coordinator broadcasts periodically a first beacon in a first signal format. The first beacon defines a start of a contention period and a start of a contention free period. The coordinator also broadcasts a second beacon in a second signal format during the contention free period. The second beacon also defines the start of the contention period and the start of the contention free period.

    摘要翻译： 一种方法在异构通信网络中的终端之间传送数据。 协调器周期性地以第一信号格式广播第一信标。 第一个信标定义了竞争时段的开始和无竞争时段的开始。 协调者还在无争夺时段期间以第二信号格式广播第二信标。 第二个灯塔还定义了争用期的开始和无竞争期的开始。

    Modulating signals for coherent and differentially coherent receivers
    3.
    发明申请
    Modulating signals for coherent and differentially coherent receivers 失效
    调制相干和差分相干接收机的信号

    公开(公告)号：US20060083333A1

    公开(公告)日：2006-04-20

    申请号：US10964918

    申请日：2004-10-14

    申请人： Philip Orlik ,  Andreas Molisch ,  Sandeep Aedudodla

    发明人： Philip Orlik ,  Andreas Molisch ,  Sandeep Aedudodla

    IPC分类号： H04L27/20

    CPC分类号： H04B1/7176 ,  H04B1/719 ,  H04L27/18

    摘要： A system incorporates TH-IR and TR-IR transceivers in the same wireless network. A transmitter modulates a sequence of bits in a wireless communications network by generating a reference waveform and a data waveform of a waveform pair for each current bit. The phase of the reference waveform depends on a previous modulated bit, and a difference in phase between the reference waveform and the data waveform pair depend on the current bit.

    摘要翻译： 一个系统在同一无线网络中集成了TH-IR和TR-IR收发器。 发射机通过为每个当前比特生成参考波形和波形对的数据波形来调制无线通信网络中的比特序列。 参考波形的相位取决于先前的调制位，参考波形和数据波形对之间的相位差取决于当前位。

    Coordinating communications in a heterogeneous communications network using different signal formats
    4.
    发明申请
    Coordinating communications in a heterogeneous communications network using different signal formats 有权
    使用不同的信号格式协调异构通信网络中的通信

    公开(公告)号：US20050174964A1

    公开(公告)日：2005-08-11

    申请号：US10774200

    申请日：2004-02-06

    申请人： Philip Orlik ,  Andreas Molisch

    发明人： Philip Orlik ,  Andreas Molisch

    IPC分类号： H04W74/02 ,  H04W74/04 ,  H04W74/08 ,  H04Q7/00

    CPC分类号： H04W74/02 ,  H04W74/08

    摘要： A method communicates data between terminals in heterogeneous communications network. A coordinator broadcasts periodically a first beacon in a first signal format. The first beacon defines a start of a contention period and a start of a contention free period. The coordinator also broadcasts a second beacon in a second signal format during the contention free period. The second beacon also defines the start of the contention period and the start of the contention free period.

    摘要翻译： 一种方法在异构通信网络中的终端之间传送数据。 协调器周期性地以第一信号格式广播第一信标。 第一个信标定义了竞争时段的开始和无竞争时段的开始。 协调者还在无争夺时段期间以第二信号格式广播第二信标。 第二个灯塔还定义了争用期的开始和无竞争期的开始。

    Modulating signals for coherent and differentially coherent receivers
    7.
    发明申请
    Modulating signals for coherent and differentially coherent receivers 有权
    调制相干和差分相干接收机的信号

    公开(公告)号：US20060083294A1

    公开(公告)日：2006-04-20

    申请号：US11074168

    申请日：2005-03-07

    申请人： Philip Orlik ,  Andreas Molisch ,  Shiwei Zhao

    发明人： Philip Orlik ,  Andreas Molisch ,  Shiwei Zhao

    IPC分类号： H04B1/707 ,  H03K9/04

    CPC分类号： H04B1/7176 ,  H04B1/71635 ,  H04B1/719 ,  H04B2001/6908 ,  H04L27/18 ,  H04L27/2071 ,  H04L27/2331

    摘要： A system incorporates TH-IR and TR-IR transceivers in the same wireless network. A transmitter modulates a sequence of bits in a wireless communications network by generating a reference waveform and a data waveform of a waveform pair for each current bit. The phase of the reference waveform depends on a previous modulated bit, and a difference in phase between the reference waveform and the data waveform pair depend on the current bit. A symbol period for the current bit is partitioned into multiple time intervals, and the reference waveform and the data waveform are encoded in a selected one of the time intervals that depends on the current bit.

    摘要翻译： 一个系统在同一无线网络中集成了TH-IR和TR-IR收发器。 发射机通过为每个当前比特生成参考波形和波形对的数据波形来调制无线通信网络中的比特序列。 参考波形的相位取决于先前的调制位，参考波形和数据波形对之间的相位差取决于当前位。 当前位的符号周期被划分成多个时间间隔，并且参考波形和数据波形被编码在取决于当前位的时间间隔中的所选择的一个中。

    M-ary modulation of signals for coherent and differentially coherent receivers
    8.
    发明申请
    M-ary modulation of signals for coherent and differentially coherent receivers 有权
    用于相干和差分相干接收机的信号的M-ary调制

    公开(公告)号：US20060203931A1

    公开(公告)日：2006-09-14

    申请号：US11079362

    申请日：2005-03-14

    申请人： Philip Orlik ,  Andreas Molisch

    发明人： Philip Orlik ,  Andreas Molisch

    IPC分类号： H04L27/20

    CPC分类号： H04B1/71635 ,  H04B1/71632 ,  H04B1/71637 ,  H04B1/7176

    摘要： A system incorporates TH-IR, TR-IR and noncoherent transceivers in the same wireless network. A transmitter modulates a sequence of bits in a wireless communications network by selecting one coding sequence from a set of orthogonal or quasi-orthogonal coding sequences based on a current subsequence of bits of the input sequence, generating a reference waveform and a data waveform of a waveform pair for each sequence.

    摘要翻译： 一个系统在相同的无线网络中集成了TH-IR，TR-IR和非相干收发器。 发射机通过基于输入序列的比特的当前子序列从一组正交或准正交编码序列中选择一个编码序列来调制无线通信网络中的比特序列，生成参考波形和数据波形 每个序列的波形对。

    Method for Reducing Interference in OFDM Wireless Networks
    10.
    发明申请
    Method for Reducing Interference in OFDM Wireless Networks 有权
    减少OFDM无线网络干扰的方法

    公开(公告)号：US20130114765A1

    公开(公告)日：2013-05-09

    申请号：US13291546

    申请日：2011-11-08

    申请人： Ramesh Annavajjala ,  Liangbin Li ,  Philip Orlik

    发明人： Ramesh Annavajjala ,  Liangbin Li ,  Philip Orlik

    IPC分类号： H04L27/06

    CPC分类号： H04L5/0048 ,  H04J11/004 ,  H04L25/03171 ,  H04L27/2602 ,  H04L27/32 ,  H04L2025/03777

    摘要： Interference in a received orthogonal frequency division multiplexing (OFDM) symbol, modulated according to selected constellation points Sk, is reduced. The symbol includes a set of pilot signals and a set of data signals yk, where k is a number of consecutive subcarriers used for the pilot and the data signals. The pilot signals are thresholded to detect interfering pilot signals, which are then erased. Channels Ĥk are estimated using remaining pilot signals. The set of data signals are decoded based on the estimated channels Ĥk, and, for each bit bi in the set of data signals, a logarithmic likely ratio (LLR) log  ∑ s k : b i = 0  1  y k - H ^ k  s k  2 ∑ s k : b i = 1  1  y k - H ^ k  s k  2 is determined. The LLR is an indicator of the likely interference.

    摘要翻译： 根据选择的星座点Sk进行调制的接收正交频分复用（OFDM）符号中的干扰被减少。 符号包括一组导频信号和一组数据信号yk，其中k是用于导频和数据信号的连续副载波的数量。 导频信号被阈值以检测干扰导频信号，然后擦除导频信号。 使用剩余的导频信号估计信道Hk。 基于估计的信道H k解码数据信号组，并且对于数据信号组中的每个比特bi，存在对数可能比率（LLR）logΣΣΣKi：k = 2Σsk：2 LLR是可能的干扰的指标。