LOAD BALANCING METHOD FOR A WIRELESS AREA NETOWRK
    42.
    发明申请
    LOAD BALANCING METHOD FOR A WIRELESS AREA NETOWRK 有权
    无线区域网络的负载均衡方法

    公开(公告)号:US20070115906A1

    公开(公告)日:2007-05-24

    申请号:US11622863

    申请日:2007-01-12

    IPC分类号: H04Q7/24 H04Q7/20

    摘要: The present invention relates to a load balancing method for a wireless local area network, which including the following steps: initializing the load balancing group, self-organizing to select an online access point from the load balancing group as a load balancing agent center, each access point of the said balancing group managing and processing the load balance in accordance with the load level and balance optimizing policy, therefore implements the network load balance. The method of the invention improves reliability of the network load information, prevents the load information from invalidly broadcasting in the wireless local area network, therefore reduces the additional overhead for managing the load balance of the wireless network, particularly in the network that having three layers switching equipment, self-organizing to select the agent center can utilize the network resource in effect, therefore managing the dynamic load balance information much more effect, reducing the dependence on the upper server, and managing the network much more flexible.

    摘要翻译: 本发明涉及一种无线局域网的负载平衡方法,包括以下步骤:初始化负载均衡组,自组织从负载均衡组中选择一个在线接入点作为负载均衡中心,每个 所述平衡组的接入点根据负载级别和平衡优化策略管理和处理负载均衡,从而实现网络负载平衡。 本发明的方法提高了网络负载信息的可靠性,防止了无线局域网中的负载信息无效广播,从而减少了管理无线网络负载平衡的附加开销,特别是在具有三层网络的网络中 交换设备,自组织选择代理中心可以利用网络资源,从而更有效地管理动态负载均衡信息,减少对上位机的依赖,管理网络更加灵活。

    High linearity low noise amplifier
    43.
    发明授权
    High linearity low noise amplifier 有权
    高线性度低噪声放大器

    公开(公告)号:US06781467B2

    公开(公告)日:2004-08-24

    申请号:US10351132

    申请日:2003-01-24

    申请人: Bo Sun

    发明人: Bo Sun

    IPC分类号: H03F368

    摘要: A feedforward nonlinearity cancellation scheme is used to improve the linearity of a low noise amplifier (LNA). An LNA incorporates a main amplifier and an auxiliary amplifier couple to receive the same input. The outputs of the main amplifier and the auxiliary amplifier are also coupled. The auxiliary amplifier may be implemented as a very low power auxiliary amplifier having a very low linearity. The output of the auxiliary amplifier contains third-order intermodulation (IM3) products that are of similar amplitude, but opposite phase, to the IM3 products generated by the main amplifier. With the outputs of the main amplifier and the auxiliary amplifier coupled, their respective IM3 products are summed together and effectively cancel each other out. As a result, the output of the LNA contains substantially no IM3 products, and the linearity of the LNA is substantially improved.

    摘要翻译: 前馈非线性消除方案用于提高低噪声放大器(LNA)的线性度。 LNA集成了主放大器和辅助放大器耦合,以接收相同的输入。 主放大器和辅助放大器的输出也耦合。 辅助放大器可以被实现为具有非常低线性度的极低功率辅助放大器。 辅助放大器的输出包含与主放大器产生的IM3产品具有相似幅度但相反相位的三阶互调(IM3)产品。 随着主放大器和辅助放大器的输出耦合,它们各自的IM3产品相加在一起,并有效地相互抵消。 结果,LNA的输出基本上不含有IM3产物,并且LNA的线性度显着提高。

    Ultra-wide band frequency modulator
    46.
    发明授权
    Ultra-wide band frequency modulator 有权
    超宽带调频器

    公开(公告)号:US09000858B2

    公开(公告)日:2015-04-07

    申请号:US13490746

    申请日:2012-06-07

    摘要: An ultra-wide band frequency modulator is disclosed. The frequency modulator includes a direct modulation phase lock loop that receives a small component. The frequency modulator also includes a delay module that produces a plurality of delay lines. The frequency modulator further includes an edge selector that receives a large component and the plurality of delay lines.

    摘要翻译: 公开了一种超宽带频率调制器。 频率调制器包括接收小分量的直接调制锁相环。 频率调制器还包括产生多个延迟线的延迟模块。 频率调制器还包括边缘选择器,其接收大的分量和多个延迟线。

    Constellation mapping method
    47.
    发明授权
    Constellation mapping method 有权
    星座映射法

    公开(公告)号:US08798200B2

    公开(公告)日:2014-08-05

    申请号:US13202929

    申请日:2009-07-03

    摘要: The present invention provides a constellation mapping method, and the method includes: flipping a plurality of bits in each modulation symbol unit to be mapped in part of or all of modulation symbol units to be mapped of a bit sequence to be mapped; and mapping each flipped modulation symbol unit to be mapped as a modulation symbol in a constellation. By means of the present invention, the phenomenon that consecutive bits have the same reliability can be effectively avoided by changing unevenness of reliability distribution of the consecutive bits, and at the same time, the link performance can be improved.

    摘要翻译: 本发明提供一种星座映射方法,该方法包括:在要映射的比特序列映射的调制符号单元的一部分或全部中,对每个调制符号单元中的多个比特进行翻转, 并映射要映射成星座图中的调制符号的每个翻转的调制符号单元。 通过本发明,可以通过改变连续位的可靠性分布的不均匀性来有效地避免连续位具有相同可靠性的现象,同时可提高链路性能。

    Digitally controlled oscillator with improved digital frequency calibration
    49.
    发明授权
    Digitally controlled oscillator with improved digital frequency calibration 失效
    数字控制振荡器具有改进的数字频率校准

    公开(公告)号:US08198944B2

    公开(公告)日:2012-06-12

    申请号:US12366576

    申请日:2009-02-05

    申请人: Bo Sun Zixiang Yang

    发明人: Bo Sun Zixiang Yang

    IPC分类号: G01R23/00

    摘要: Techniques for calibrating digitally controlled oscillators (DCOS) are disclosed. In one aspect of the disclosure, an initial set of control codes for operating the DCO with a coarse frequency tuning bank with multiple overlapping coarse frequency tuning segments (LTBs) and one fine main frequency tuning bank (MTB) is determined. A range of output frequencies produced from the initial set is identified. Instances of overlap are identified in the frequency range between consecutive LTB segments. An offset in the MTB is added that corresponds to the overlap instance between consecutive LTBs to establish a revised set. The revised control codes are utilized to tune the DCO over the desired frequency range.

    摘要翻译: 公开了用于校准数字控制振荡器(DCOS)的技术。 在本公开的一个方面,确定用于利用具有多个重叠粗调频调谐段(LTB)和一个精细主频调谐组(MTB)的粗调频调谐组操作DCO的初始控制码组。 识别从初始集合产生的输出频率范围。 在连续的LTB段之间的频率范围内识别重叠实例。 添加MTB中的偏移量,其对应于连续LTB之间的重叠实例,以建立修订集。 修改后的控制代码用于在期望的频率范围内调谐DCO。

    Terminal, Multipoint Control Unit, System and Method for Implementing High Definition Multiple Pictures
    50.
    发明申请
    Terminal, Multipoint Control Unit, System and Method for Implementing High Definition Multiple Pictures 有权
    终端,多点控制单元,实现高清多画面的系统和方法

    公开(公告)号:US20120113212A1

    公开(公告)日:2012-05-10

    申请号:US13381754

    申请日:2010-05-19

    IPC分类号: H04N7/15

    CPC分类号: H04N7/152 H04N7/148

    摘要: A terminal, multipoint control unit, system and method for implementing high definition multiple pictures are provided by the present invention. The method comprises the following steps of: a Multipoint Control Unit (MCU) calculating a high definition video code stream format according to video conference control information, and sending a capability set containing the high definition video code stream format to a selected terminal; based on the high definition video code stream format in the capability set, the selected terminal encoding a high definition video image and sending the encoded high definition video code stream to the MCU; according to the video conference control information, the MCU synthesizing the received high definition video code stream image into multiple pictures, and obtaining the high definition multi-picture video code stream image and sending it to the terminals attending the conference.

    摘要翻译: 本发明提供一种用于实现高分辨率多画面的终端,多点控制单元,系统和方法。 该方法包括以下步骤:多点控制单元(MCU)根据视频会议控制信息计算高分辨率视频码流格式,并将包含高分辨率视频码流格式的能力集合发送到所选择的终端; 基于能力集合中的高清晰度视频码流格式,所选择的终端编码高分辨率视频图像并将编码的高清晰度视频码流发送到MCU; 根据视频会议控制信息,MCU将接收到的高分辨率视频码流图像合成为多个图像,并获得高分辨率多图像视频码流图像并发送给参加会议的终端。