METHOD AND DEVICE FOR INCREASING CAPACITY OF TDD WIRELESS COMMUNICATION SYSTEMS
    1.
    发明申请
    METHOD AND DEVICE FOR INCREASING CAPACITY OF TDD WIRELESS COMMUNICATION SYSTEMS 审中-公开
    用于增加TDD无线通信系统容量的方法和设备

    公开(公告)号:US20080080406A1

    公开(公告)日:2008-04-03

    申请号:US11536813

    申请日:2006-09-29

    IPC分类号: H04L5/14 H04B7/204 H04Q7/00

    CPC分类号: H04B7/2643

    摘要: An access point (108) in a dual-frequency TDD communication system (100) includes a transceiver (122) that transmits information to a first group of subscriber devices (104a-n) at a first frequency (f1) and contemporaneously receives information from a second group of a subscriber devices (106a-n) at a second frequency (f2) during at least a portion of a period of time (T1). The access point (108) also transmits information to the second group of subscriber devices (106a-n) at the second frequency (f2) and contemporaneously receives information from the first group of subscriber devices (104a-n) at the first frequency (f1) during at least a portion of a second period of time (T3). A method for performing a dual-frequency communication scheme is also provided.

    摘要翻译: 双频TDD通信系统(100)中的接入点(108)包括收发信机(122),其以第一频率(f 1 SUB)向第一组订户设备(104a)发送信息 >)并且在一段时间(T 1)的至少一部分期间同时以第二频率(f 2> 2)从第二组用户设备(106a)接收信息。 接入点(108)还以第二频率(f 2> 2)向第二组用户设备(106a)发送信息,同时从第一组用户设备(104a)接收信息, 在第二时间段(T 3)的至少一部分期间以第一频率(f 1> 1)进行。 还提供了一种用于执行双频通信方案的方法。

    Methods and apparatus of providing a radio frequency local oscillator signal for a transceiver
    2.
    发明授权
    Methods and apparatus of providing a radio frequency local oscillator signal for a transceiver 失效
    为收发机提供射频本地振荡器信号的方法和装置

    公开(公告)号:US07466962B2

    公开(公告)日:2008-12-16

    申请号:US11152608

    申请日:2005-06-14

    IPC分类号: H04B1/44

    CPC分类号: H04B1/403

    摘要: In the present technique of duplex local oscillator technique provided, a radio frequency local oscillator frequency and a duplex local oscillator frequency at a selected timeslot are assessed (516, 520) to provide a radio frequency local oscillator signal (518) and a duplex local oscillator signal (522), respectively. The duplex local oscillator signal and the radio frequency local oscillator signal are mixed (524) to provide a converted radio frequency local oscillator signal, which is then provided (526) for output.

    摘要翻译: 在提供的双工本机振荡器技术的本技术中,评估(516,520)在选定时隙处的射频本地振荡器频率和双工本机振荡器频率以提供射频本地振荡器信号(518)和双工本机振荡器 信号(522)。 双工本机振荡器信号和射频本地振荡器信号被混合(524)以提供转换的射频本地振荡器信号,然后提供(526)用于输出。

    Method and apparatus for adaptive modulation of wireless communication signals
    3.
    发明授权
    Method and apparatus for adaptive modulation of wireless communication signals 有权
    用于无线通信信号的自适应调制的方法和装置

    公开(公告)号:US07787562B2

    公开(公告)日:2010-08-31

    申请号:US11025324

    申请日:2004-12-29

    IPC分类号: H04K1/02

    CPC分类号: H04L27/0008

    摘要: A block edge detector (310) determines (510) whether a wireless communication transmission with a first modulation having excess spectral emissions will be transmitted at a frequency on a block edge (120). In response, a modulator selector (320) changes (530) the wireless communication transmission to a second modulation with lessened spectral emissions. Preferably, the second modulator (340) is operably coupled to an alternative lookup table (360) wherein phase trajectory entries likely to cause excess spectral emissions such as spurious emissions are smoothed. The entries may be smoothed by filtering, non-linear extrapolation, and/or linear extrapolation. Alternatively, the second modulator (340) uses an alternative lookup table (360) that is a GMSK modulator with BT less than 0.3.

    摘要翻译: 块边缘检测器(310)确定(510)是否将以块边缘(120)上的频率发送具有超频谱发射的第一调制的无线通信传输。 作为响应,调制器选择器(320)将无线通信传输(530)改变为具有减小的频谱发射的第二调制。 优选地,第二调制器(340)可操作地耦合到替代查找表(360),其中可能导致过量频谱发射(例如杂散发射)的相位轨迹条目被平滑。 条目可以通过滤波,非线性外插和/或线性外推来平滑。 或者,第二调制器(340)使用作为BT小于0.3的GMSK调制器的替代查找表(360)。