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    • 5. 发明授权
    • Methods and apparatus to support base station detection and selection in multi-tier wireless networks
    • 支持多层无线网络中基站检测和选择的方法和装置
    • US08843129B2
    • 2014-09-23
    • US12961334
    • 2010-12-06
    • Ying LiZhouyue PiSudhir RamakrishnaBaowei Ji
    • Ying LiZhouyue PiSudhir RamakrishnaBaowei Ji
    • H04W24/00H04W36/00H04W84/04
    • H04W36/0061H04W84/045
    • A subscriber station can efficiently determine an accessible base station by scanning a subset of base stations based on an optimized list received from a serving base station. The subscriber station includes a white list that contains information regarding a number of closed subscriber group (CSG) base stations to which the subscriber station is subscribed. The subscriber station can transmit a request message that includes one or more of: indication of whether the detected identifier of the femto base station is in the whitelist or not; and its location information. In response, the base station can send a message that includes the nearby femtocells and whether the femtocell is accessible or inaccessible to the subscriber station. The femto base station can be designed to be in transmission off mode when none of its subscribers is in its coverage. The serving base station can select a set of the accessible femtocells to the subscriber station, and request the selected femtocells to monitor an uplink signaling of the subscriber station so that the femtocell can be awaken when the femtocell is in transmission off mode or be aware that the subscriber station is in proximity, if the uplink signaling is detected.
    • 用户站可以基于从服务基站接收到的优化列表来扫描基站的子集,来有效地确定可访问的基站。 用户站包括白名单,其包含关于用户台订阅的封闭用户组(CSG)基站的数量的信息。 用户台可以发送包括以下中的一个或多个的请求消息:毫微微基站的检测到的标识符是否在白名单中的指示; 及其位置信息。 作为响应,基站可以发送包括附近的毫微微小区的消息以及毫微微小区是否可访问或用户台不可访问。 当毫微微基站的用户没有覆盖时,毫微微基站可以被设计为处于传输关闭模式。 服务基站可以向用户台选择一组可访问的毫微微小区,并且请求所选择的毫微微小区监视用户站的上行链路信令,以便当毫微微小区处于传输关闭模式时可以唤醒毫微微小区,或者意识到 如果检测到上行链路信令,则用户站处于接近状态。
    • 8. 发明授权
    • Methods and apparatus to support paging with less interference in multi-tier communication systems
    • 支持在多层通信系统中具有较少干扰的寻呼的方法和装置
    • US08433345B2
    • 2013-04-30
    • US12814068
    • 2010-06-11
    • Ying LiZhouyue PiBaowei Ji
    • Ying LiZhouyue PiBaowei Ji
    • H04W68/00H04B7/00
    • H04W68/02Y02D70/00Y02D70/142Y02D70/146Y02D70/20
    • A first base station and mobile station are capable of mitigating interference resulting from communications from a second base station. The base station can determine if at least a portion of a paging slot overlaps with an available interval (AI) of the second base station in which the second base station transmits. The first base station adjusts an occurrence of the paging slot such that the paging slot overlaps and/or occurs within an unavailable interval (UAI) of the second base station wherein the base station does not transmit or transmits with limited resources.The mobile station also can determine if at least a portion of a listening slot overlaps with the AI and, using the same procedure that the first base station uses to recalculate the paging slot, recalculates the listening slot such that the listening slot overlaps and/or occurs within the UAI of the LDC mode.
    • 第一基站和移动台能够减轻来自第二基站的通信所产生的干扰。 基站可以确定寻呼时隙的至少一部分是否与第二基站发送的第二基站的可用间隔(AI)重叠。 第一基站调整寻呼时隙的发生,使得寻呼时隙与第二基站的不可用间隔(UAI)重叠和/或发生,其中基站不以有限的资源发送或发送。 移动台还可以确定收听时隙的至少一部分是否与AI重叠,并且使用与第一基站用于重新计算寻呼时隙的相同的过程,重新计算收听时隙,使得收听时隙与/ 发生在LDC模式的UAI内。