System and method for data scrambling to reduce the crest factor in an OFDM waveform
    1.
    发明申请
    System and method for data scrambling to reduce the crest factor in an OFDM waveform 有权
    用于数据加扰的系统和方法,以减少OFDM波形中的波峰因数

    公开(公告)号:US20050073945A1

    公开(公告)日:2005-04-07

    申请号:US10929732

    申请日:2004-08-30

    摘要: A method is provided for minimizing the peak power level in a combination of orthogonal frequency division multiplexed (OFDM) tones. The method is particularly effective when the information to be communicated is digital data consisting of long patterns of “1”s or “0”s. The digital data of the message is combined with a scrambling vector before the data is modulated. The randomization of data patterns, in turn, leads to a more random combination of OFDM tone amplitude being transmitted. The message is recovered at the receiver by removing the scrambling vector. A table of scrambling vectors is maintained at the transmitters and receivers. The table pointer to select the scrambling vector is selected in response to the position of the message in the communication structure. An OFDM communication system using the above-described method is also provided.

    摘要翻译: 提供了一种用于使正交频分复用(OFDM)音调的组合中的峰值功率电平最小化的方法。 当要传送的信息是由“1”或“0”的长模式组成的数字数据时,该方法特别有效。 在调制数据之前,将消息的数字数据与加扰矢量组合。 数据模式的随机化反过来导致正在传输的OFDM音调幅度的更随机组合。 通过去除加扰向量在接收机处恢复消息。 在发射机和接收机处保持加扰矢量表。 响应于通信结构中的消息的位置来选择用于选择加扰向量的表指针。 还提供了使用上述方法的OFDM通信系统。

    System and method for data scrambling to reduce the crest factor in an OFDM waveform
    2.
    发明授权
    System and method for data scrambling to reduce the crest factor in an OFDM waveform 有权
    用于数据加扰的系统和方法,以减少OFDM波形中的波峰因数

    公开(公告)号:US06785258B1

    公开(公告)日:2004-08-31

    申请号:US09590004

    申请日:2000-06-08

    IPC分类号: H04B7208

    摘要: A method is provided for minimizing the peak power level in a combination of orthogonal frequency division multiplexed (OFDM) tones. The method is particularly effective when the information to be communicated is digital data consisting of long patterns of “1”s or “0”s. The digital data of the message is combined with a scrambling vector before the data is modulated. The randomization of data patterns, in turn, leads to a more random combination of OFDM tone amplitude being transmitted. The message is recovered at the receiver by removing the scrambling vector. A table of scrambling vectors is maintained at the transmitters and receivers. The table pointer to select the scrambling vector is selected in response to the position of the message in the communication structure. An OFDM communication system using the above-described method is also provided.

    摘要翻译: 提供了一种用于使正交频分复用(OFDM)音调的组合中的峰值功率电平最小化的方法。 当要传送的信息是由“1”或“0”的长模式组成的数字数据时,该方法特别有效。 在调制数据之前,将消息的数字数据与加扰矢量组合。 数据模式的随机化反过来导致正在传输的OFDM音调幅度的更随机组合。 通过去除加扰向量在接收机处恢复消息。 在发射机和接收机处保持加扰矢量表。 响应于通信结构中的消息的位置来选择用于选择加扰向量的表指针。 还提供了使用上述方法的OFDM通信系统。

    System and method for data scrambling to reduce the crest factor in an OFDM waveform
    3.
    发明授权
    System and method for data scrambling to reduce the crest factor in an OFDM waveform 有权
    用于数据加扰的系统和方法,以减少OFDM波形中的波峰因数

    公开(公告)号:US08014272B2

    公开(公告)日:2011-09-06

    申请号:US12419392

    申请日:2009-04-07

    摘要: A method is provided for minimizing the peak power level in a combination of orthogonal frequency division multiplexed (OFDM) tones. The method is particularly effective when the information to be communicated is digital data consisting of long patterns of “1”s or “0”s. The digital data of the message is combined with a scrambling vector before the data is modulated. The randomization of data patterns, in turn, leads to a more random combination of OFDM tone amplitude being transmitted. The message is recovered at the receiver by removing the scrambling vector. A table of scrambling vectors is maintained at the transmitters and receivers. The table pointer to select the scrambling vector is selected in response to the position of the message in the communication structure. An OFDM communication system using the above-described method is also provided.

    摘要翻译: 提供了一种用于使正交频分复用(OFDM)音调的组合中的峰值功率电平最小化的方法。 当要传送的信息是由“1”或“0”的长模式组成的数字数据时,该方法特别有效。 在调制数据之前,将消息的数字数据与加扰矢量组合。 数据模式的随机化反过来导致正在传输的OFDM音调幅度的更随机组合。 通过去除加扰向量在接收机处恢复消息。 在发射机和接收机处保持加扰矢量表。 响应于通信结构中的消息的位置来选择用于选择加扰向量的表指针。 还提供了使用上述方法的OFDM通信系统。

    System and method for data scrambling to reduce the crest factor in an OFDM waveform
    4.
    发明授权
    System and method for data scrambling to reduce the crest factor in an OFDM waveform 有权
    用于数据加扰的系统和方法,以减少OFDM波形中的波峰因数

    公开(公告)号:US08498196B2

    公开(公告)日:2013-07-30

    申请号:US13224695

    申请日:2011-09-02

    摘要: A method is provided for reducing the peak power level in a combination of orthogonal frequency division multiplexed (OFDM) tones. The method is particularly effective when the information to be communicated is digital data consisting of long patterns of “1”s or “0”s. The digital data of the message is combined with a scrambling vector before the data is modulated. The randomization of data patterns, in turn, leads to a more random combination of OFDM tone amplitude being transmitted. The message is recovered at the receiver by removing the scrambling vector. A table of scrambling vectors is maintained at the transmitters and receivers. The table pointer to select the scrambling vector is selected in response to the position of the message in the communication structure. An OFDM communication system using the above-described method is also provided.

    摘要翻译: 提供了一种用于降低正交频分复用(OFDM)音调的组合中的峰值功率电平的方法。 当要传送的信息是由“1”或“0”的长模式组成的数字数据时,该方法特别有效。 在调制数据之前,将消息的数字数据与加扰矢量组合。 数据模式的随机化反过来导致正在传输的OFDM音调幅度的更随机组合。 通过去除加扰向量在接收机处恢复消息。 在发射机和接收机处保持加扰矢量表。 响应于通信结构中的消息的位置来选择用于选择加扰向量的表指针。 还提供了使用上述方法的OFDM通信系统。

    SYSTEM AND METHOD FOR DATA SCRAMBLING TO REDUCE THE CREST FACTOR IN AN OFDM WAVEFORM
    5.
    发明申请
    SYSTEM AND METHOD FOR DATA SCRAMBLING TO REDUCE THE CREST FACTOR IN AN OFDM WAVEFORM 有权
    用于数据扫描以减少OFDM波形中的检测因子的系统和方法

    公开(公告)号:US20110317783A1

    公开(公告)日:2011-12-29

    申请号:US13224695

    申请日:2011-09-02

    IPC分类号: H04L27/00

    摘要: A method is provided for reducing the peak power level in a combination of orthogonal frequency division multiplexed (OFDM) tones. The method is particularly effective when the information to be communicated is digital data consisting of long patterns of “1”s or “0”s. The digital data of the message is combined with a scrambling vector before the data is modulated. The randomization of data patterns, in turn, leads to a more random combination of OFDM tone amplitude being transmitted. The message is recovered at the receiver by removing the scrambling vector. A table of scrambling vectors is maintained at the transmitters and receivers. The table pointer to select the scrambling vector is selected in response to the position of the message in the communication structure. An OFDM communication system using the above-described method is also provided.

    摘要翻译: 提供了一种用于降低正交频分复用(OFDM)音调的组合中的峰值功率电平的方法。 当要传送的信息是由“1”或“0”的长模式组成的数字数据时,该方法特别有效。 在调制数据之前,将消息的数字数据与加扰矢量组合。 数据模式的随机化反过来导致正在传输的OFDM音调幅度的更随机组合。 通过去除加扰向量在接收机处恢复消息。 在发射机和接收机处保持加扰矢量表。 响应于通信结构中的消息的位置来选择用于选择加扰向量的表指针。 还提供了使用上述方法的OFDM通信系统。

    SYSTEM AND METHOD FOR DATA SCRAMBLING TO REDUCE THE CREST FACTOR IN AN OFDM WAVEFORM
    6.
    发明申请
    SYSTEM AND METHOD FOR DATA SCRAMBLING TO REDUCE THE CREST FACTOR IN AN OFDM WAVEFORM 有权
    用于数据扫描以减少OFDM波形中的检测因子的系统和方法

    公开(公告)号:US20090202012A1

    公开(公告)日:2009-08-13

    申请号:US12419392

    申请日:2009-04-07

    IPC分类号: H04L27/28

    摘要: A method is provided for minimizing the peak power level in a combination of orthogonal frequency division multiplexed (OFDM) tones. The method is particularly effective when the information to be communicated is digital data consisting of long patterns of “1”s or “0”s. The digital data of the message is combined with a scrambling vector before the data is modulated. The randomization of data patterns, in turn, leads to a more random combination of OFDM tone amplitude being transmitted. The message is recovered at the receiver by removing the scrambling vector. A table of scrambling vectors is maintained at the transmitters and receivers. The table pointer to select the scrambling vector is selected in response to the position of the message in the communication structure. An OFDM communication system using the above-described method is also provided.

    摘要翻译: 提供了一种用于使正交频分复用(OFDM)音调的组合中的峰值功率电平最小化的方法。 当要传送的信息是由“1”或“0”的长模式组成的数字数据时,该方法特别有效。 在调制数据之前,将消息的数字数据与加扰矢量组合。 数据模式的随机化反过来导致正在传输的OFDM音调幅度的更随机组合。 通过去除加扰向量在接收机处恢复消息。 在发射机和接收机处保持加扰矢量表。 响应于通信结构中的消息的位置来选择用于选择加扰向量的表指针。 还提供了使用上述方法的OFDM通信系统。

    Establishing a communication channel in a wireless network
    7.
    发明授权
    Establishing a communication channel in a wireless network 失效
    在无线网络中建立通信信道

    公开(公告)号:US07526290B2

    公开(公告)日:2009-04-28

    申请号:US10958679

    申请日:2004-10-04

    IPC分类号: H04Q7/20

    摘要: A method of operating a communication system is disclosed. The method includes transmitting from a remote unit to a base station remote unit channel data. The remote unit channel is generated at the remote unit and includes data about a first portion of communication channels on which the call can be executed. The method also includes applying a channel selection method to the remote unit channel data and to base station channel data so as to select a communication channel from among the first portion of communication channels. The base station channel data is generated at the base station and includes data about a second portion of the communication channels. The method further includes executing a call on the selected communication channel.

    摘要翻译: 公开了一种操作通信系统的方法。 该方法包括从远程单元向基站远程单元信道数据发送。 在远程单元处生成远程单元信道,并且包括关于可以在其上执行呼叫的通信信道的第一部分的数据。 该方法还包括对远程单元信道数据和基站信道数据应用信道选择方法,以从通信信道的第一部分中选择通信信道。 在基站处生成基站信道数据,并且包括关于通信信道的第二部分的数据。 该方法还包括在所选择的通信信道上执行呼叫。

    ESTABLISHING A COMMUNICATION CHANNEL IN A WIRELESS NETWORK
    8.
    发明申请
    ESTABLISHING A COMMUNICATION CHANNEL IN A WIRELESS NETWORK 有权
    建立无线网络中的通信信道

    公开(公告)号:US20100069075A1

    公开(公告)日:2010-03-18

    申请号:US12427672

    申请日:2009-04-21

    IPC分类号: H04W72/04

    摘要: A method of operating a communication system is disclosed. The method includes transmitting from a remote unit to a base station remote unit channel data. The remote unit channel is generated at the remote unit and includes data about a first portion of communication channels on which the call can be executed. The method also includes applying a channel selection method to the remote unit channel data and to base station channel data so as to select a communication channel from among the first portion of communication channels. The base station channel data is generated at the base station and includes data about a second portion of the communication channels. The method further includes executing a call on the selected communication channel.

    摘要翻译: 公开了一种操作通信系统的方法。 该方法包括从远程单元向基站远程单元信道数据发送。 在远程单元处生成远程单元信道,并且包括关于可以在其上执行呼叫的通信信道的第一部分的数据。 该方法还包括对远程单元信道数据和基站信道数据应用信道选择方法,以从通信信道的第一部分中选择通信信道。 在基站处生成基站信道数据,并且包括关于通信信道的第二部分的数据。 该方法还包括在所选择的通信信道上执行呼叫。

    Establishing a communication channel in a wireless network
    9.
    发明申请
    Establishing a communication channel in a wireless network 失效
    在无线网络中建立通信信道

    公开(公告)号:US20050136951A1

    公开(公告)日:2005-06-23

    申请号:US10958679

    申请日:2004-10-04

    IPC分类号: H04W72/08 H04Q7/20

    摘要: A method of operating a communication system is disclosed. The method includes transmitting from a remote unit to a base station remote unit channel data. The remote unit channel is generated at the remote unit and includes data about a first portion of communication channels on which the call can be executed. The method also includes applying a channel selection method to the remote unit channel data and to base station channel data so as to select a communication channel from among the first portion of communication channels. The base station channel data is generated at the base station and includes data about a second portion of the communication channels. The method further includes executing a call on the selected communication channel.

    摘要翻译: 公开了一种操作通信系统的方法。 该方法包括从远程单元向基站远程单元信道数据发送。 在远程单元处生成远程单元信道,并且包括关于可以在其上执行呼叫的通信信道的第一部分的数据。 该方法还包括对远程单元信道数据和基站信道数据应用信道选择方法,以从通信信道的第一部分中选择通信信道。 在基站处生成基站信道数据,并且包括关于通信信道的第二部分的数据。 该方法还包括在所选择的通信信道上执行呼叫。

    Methods and apparatus for dynamically assigning time slots in a wireless communication system
    10.
    发明授权
    Methods and apparatus for dynamically assigning time slots in a wireless communication system 失效
    在无线通信系统中动态分配时隙的方法和装置

    公开(公告)号:US06801513B1

    公开(公告)日:2004-10-05

    申请号:US09597044

    申请日:2000-06-20

    IPC分类号: H04J116

    摘要: A wireless communication system having a base unit and a plurality of remote transceiver units utilizes a dynamic time slot assignment scheme for channel access. The base unit receives and processes a channel access request message from a remote transceiver unit and prepares a channel measurement request message in response. If an Mth time slot of a time frame is available, the base unit sends this message in the Mth time slot and receives a message having channel measurement data in the Mth time slot of the next time frame. On the other hand, if the Mth time slot of the time frame is already reserved, the base unit sends the message in an Nth time slot of the time frame and receives a message having the channel measurement data in the Nth time slot of the next time frame. The base unit selects, based on the channel measurement data, an appropriate channel for communication for the remote transceiver unit, Continuing with use of the dynamic slot assignment, the base unit sends a message having a channel identifier associated with the selected channel and receives an acknowledgement from the remote transceiver unit in response.

    摘要翻译: 具有基本单元和多个远程收发器单元的无线通信系统利用用于信道接入的动态时隙分配方案。 基站单元从远程收发器单元接收并处理信道接入请求消息,并准备响应的信道测量请求消息。 如果时间段的第M个时隙可用,则基站单元在第M个时隙中发送该消息,并在下一个时间帧的第M个时隙中接收具有信道测量数据的消息 。 另一方面,如果已经保留了时间帧的第M个时隙,则基站单元在时间帧的第N个时隙中发送消息,并且接收具有该时隙中的信道测量数据的消息 下一个时间帧的第N个时隙。 基站单元基于信道测量数据选择用于远程收发机单元的通信的适当信道。继续使用动态时隙分配,基站单元发送具有与所选信道相关联的信道标识符的消息,并接收 应答来自远程收发器单元的确认。