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    • 6. 发明授权
    • Channel access method in wireless network
    • 无线网络中的信道接入方式
    • US08620369B2
    • 2013-12-31
    • US13233720
    • 2011-09-15
    • Sung Ho HwangKi Hong KimJun Ki Min
    • Sung Ho HwangKi Hong KimJun Ki Min
    • H04B7/00
    • H04W74/0816
    • There is provided a channel access method in which a channel access method in a wireless network in which a channel access opportunity is provided to high priority traffic for each super-frame. The channel access method includes: setting parameter values required for channel access; setting a channel access time to be equal to a size of a contention access period (CAP); and accessing a channel to be used by resetting the channel access time to be equal to the size of the CAP when traffic to be transmitted is traffic having a preset high priority in a case in which the channel is not in an idle state.
    • 提供了一种信道接入方法,其中无线网络中的信道接入方法,其中为每个超帧向高优先级业务提供信道接入机会。 通道访问方式包括:设置通道访问所需的参数值; 将通道访问时间设置为等于争用访问时段(CAP)的大小; 以及在频道不处于空闲状态的情况下,要发送的业务量为具有预先设定的高优先级的业务的业务时,通过将所述信道接入时间重新设置为等于所述CAP的大小来访问要使用的信道。
    • 8. 发明授权
    • Wide-band direct conversion transmission apparatus
    • 宽带直接转换传输装置
    • US08014466B2
    • 2011-09-06
    • US12194896
    • 2008-08-20
    • Jun Ki MinJong Sik KimHyun Chol ShinJeong Suk Lee
    • Jun Ki MinJong Sik KimHyun Chol ShinJeong Suk Lee
    • H04L27/00
    • H04L27/12
    • There is provided a wide-band direct conversion transmitting apparatus including: a local oscillation unit generating first, second, and third oscillation signal pairs each including a pair of signals having a phase difference of 90°; an image rejection mixer unit mixing baseband transmission signals including an I signal and a Q signal having a phase difference of 90° with the first oscillation signal pair; a harmonic rejection mixer unit mixing each of the first, second, and third oscillation signal pairs with the baseband transmission signals; and an output signal selecting unit selecting output signals from the image rejection mixer unit or from the harmonic rejection mixer unit.
    • 提供了一种宽带直接转换发送装置,包括:本地振荡单元,其产生第一,第二和第三振荡信号对,每个振荡信号对包括相位差为90°的一对信号; 镜像抑制混频器单元将包括I信号和90°相位差的Q信号的基带传输信号与第一振荡信号对混合; 谐波抑制混频器单元,将第一,第二和第三振荡信号对中的每一个与基带传输信号混合; 以及输出信号选择单元,选择来自镜像抑制混频器单元或谐波抑制混频器单元的输出信号。