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    • 5. 发明申请
    • Wireless Communication System and Communication Method Therefor
    • 无线通信系统及其通信方法
    • US20140022884A1
    • 2014-01-23
    • US14007529
    • 2012-03-23
    • Dongshan BaoLijun PanShenfa LiuJing WangJun LeiZhigang Yan
    • Dongshan BaoLijun PanShenfa LiuJing WangJun LeiZhigang Yan
    • H04L27/26
    • H04L27/2602H04J13/10H04L27/2613H04W74/0833
    • Disclosed is a communication method comprising: determining the length, N, of a random access sequence on the basis of system configuration information, where N is less than or equal to the number of available subcarriers; determining a cyclic shift parameter collection and a cyclic prefix on the basis of a system coverage area as designed; acquiring and on the basis of a MAC address of a central access point (CAP), or of a physical layer identifier thereof, and of a predetermined generator polynomial, generating a PN sequence of length N, then constellation-mapping and subcarrier-mapping the PN sequence; cyclically shifting, on the basis of the cyclic shift parameter, the constellation-mapped and subcarrier-mapped sequence, then orthogonally transforming the cyclically shifted sequence; acquiring the sequence needed, adding the cyclic prefix thereto, acquiring a random access signal; and performing subsequent processing then transmitting to a receiving-end. Also provided in the present invention is a corresponding communication system. The present invention provides improved support for wireless communication system random access, and improved system stability and reliability.
    • 公开了一种通信方法,包括:基于系统配置信息确定随机接入序列的长度N,其中N小于或等于可用子载波的数量; 基于设计的系统覆盖区域来确定循环移位参数收集和循环前缀; 获取并基于中央接入点(CAP)的MAC地址或其物理层标识符以及预定生成多项式,生成长度为N的PN序列,然后进行星座映射和子载波映射 PN序列; 基于循环移位参数周期性地移位星座映射和副载波映射序列,然后对循环移位序列进行正交变换; 获取所需的序列,向其中添加循环前缀,获取随机接入信号; 以及执行随后的处理,然后发送到接收端。 本发明还提供了相应的通信系统。 本发明提供对无线通信系统随机接入的改进的支持,以及改进的系统稳定性和可靠性。
    • 9. 发明授权
    • Wireless communication system and communication method therefor
    • 无线通信系统及其通信方法
    • US09007887B2
    • 2015-04-14
    • US14007529
    • 2012-03-23
    • Dongshan BaoLijun PanShenfa LiuJing WangJun LeiZhigang Yan
    • Dongshan BaoLijun PanShenfa LiuJing WangJun LeiZhigang Yan
    • H04J11/00H04L27/26H04W74/08H04J13/10
    • H04L27/2602H04J13/10H04L27/2613H04W74/0833
    • Disclosed is a communication method comprising: determining the length, N, of a random access sequence on the basis of system configuration information, where N is less than or equal to the number of available subcarriers; determining a cyclic shift parameter collection and a cyclic prefix on the basis of a system coverage area as designed; acquiring and on the basis of a MAC address of a central access point (CAP), or of a physical layer identifier thereof, and of a predetermined generator polynomial, generating a PN sequence of length N, then constellation-mapping and subcarrier-mapping the PN sequence; cyclically shifting, on the basis of the cyclic shift parameter, the constellation-mapped and subcarrier-mapped sequence, then orthogonally transforming the cyclically shifted sequence; acquiring the sequence needed, adding the cyclic prefix thereto, acquiring a random access signal; and performing subsequent processing then transmitting to a receiving-end. Also provided in the present invention is a corresponding communication system. The present invention provides improved support for wireless communication system random access, and improved system stability and reliability.
    • 公开了一种通信方法,包括:基于系统配置信息确定随机接入序列的长度N,其中N小于或等于可用子载波的数量; 基于设计的系统覆盖区域来确定循环移位参数收集和循环前缀; 获取并基于中央接入点(CAP)的MAC地址或其物理层标识符以及预定生成多项式,生成长度为N的PN序列,然后进行星座映射和子载波映射 PN序列; 基于循环移位参数周期性地移位星座映射和副载波映射序列,然后对循环移位序列进行正交变换; 获取所需的序列,向其中添加循环前缀,获取随机接入信号; 以及执行随后的处理,然后发送到接收端。 本发明还提供了相应的通信系统。 本发明提供对无线通信系统随机接入的改进的支持,以及改进的系统稳定性和可靠性。