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    POWER EFFICIENT SMALL BASE STATION SCANNING AND ACQUISITION
    15.
    发明申请
    POWER EFFICIENT SMALL BASE STATION SCANNING AND ACQUISITION 有权
    功率有效的小型基站扫描和采集

    公开(公告)号：US20090247170A1

    公开(公告)日：2009-10-01

    申请号：US12409368

    申请日：2009-03-23

    申请人： Srinivasan Balasubramanian ,  Manoj M. Deshpande ,  Young C. Yoon ,  Jen Mei Chen

    发明人： Srinivasan Balasubramanian ,  Manoj M. Deshpande ,  Young C. Yoon ,  Jen Mei Chen

    IPC分类号： H04W40/00 ,  H04M1/00

    CPC分类号： H04W48/16 ,  H04W52/0229 ,  H04W84/045 ,  Y02D70/1222 ,  Y02D70/1224 ,  Y02D70/1242 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/164 ,  Y02D70/24 ,  Y02D70/25

    摘要： Cellular network may introduce a large number of limited access/limited range (“small”) base stations deployed by end-users such as home base nodes (HNBs) or Femtocells that provide access to access terminals (ATs) or user equipment (UE) to a core network. A selective discovery approach enables UE to discover and to use a small base station without wasting power to discover an alien base station or to search when not within range of any open small base station. Discovery can entail location-dependent determination (e.g., macro base station triangulation, global positioning system, local broadcast channel, etc.) of being within range of an open femtocell whose identity was manually learned, accessed via a distributed neighbor list, etc. The UE can advantageously tolerate small changes in location without having to relearn the identity of the femtocell. The type of access afforded is advantageously communicated to end user via a display indicator.

    摘要翻译： 蜂窝网络可能引入由诸如提供对接入终端（AT）或用户设备（UE）的接入的家庭基站节点（HNB）或毫微微小区等终端用户部署的大量有限接入/限制范围（“小”）基站， 到一个核心网络。 选择性发现方法使得UE能够发现和使用小型基站而不浪费电力来发现外部基站，或者在不在任何开放小型基站的范围内进行搜索。 发现可能涉及位置相关确定（例如，宏基站三角测量，全球定位系统，本地广播信道等），其处于其手动学习身份，经由分布式邻居列表访问的开放式毫微微小区的范围内。 UE可以有利地容忍位置的小的改变，而不必重新学习毫微微小区的身份。 提供的访问类型有利地通过显示指示器传送给终端用户。

    FEMTO CELL SYSTEM SELECTION
    17.
    发明申请
    FEMTO CELL SYSTEM SELECTION 审中-公开
    FEMTO细胞系统选择

    公开(公告)号：US20090247157A1

    公开(公告)日：2009-10-01

    申请号：US12410767

    申请日：2009-03-25

    申请人： Young C. Yoon ,  Srinivasan Balasubramanian

    发明人： Young C. Yoon ,  Srinivasan Balasubramanian

    IPC分类号： H04W4/00

    CPC分类号： H04W48/16 ,  H04W48/12 ,  H04W84/045

    摘要： Systems and methodologies are described that facilitate identifying and/or selecting femto cells in a wireless communication environment. A mobile device can scan an Auxiliary Pilot Channel to detect auxiliary pilot channel information (e.g., a particular Walsh Code, . . . ) sent from a base station. Moreover, the identified auxiliary pilot channel information can be evaluated to detect a characteristic of the base station. For instance, the identified auxiliary pilot channel information can be compared with stored auxiliary pilot channel information (e.g., Walsh Code(s) included in a whitelist, blacklist, . . . ). Moreover, a Synchronization Channel can be read based upon the detected characteristic. Further, a Common Pilot Channel, for example, can be analyzed to search for pseudo-noise (PN) offset(s) reserved for femto cell base stations, and the scan of the Auxiliary Pilot Channel can be initiated in response to detecting at least one reserved PN offset.

    摘要翻译： 描述了有助于在无线通信环境中识别和/或选择毫微微小区的系统和方法。 移动设备可以扫描辅助导频信道以检测从基站发送的辅助导频信道信息（例如，特定沃尔什码，...）。 此外，可以评估所识别的辅助导频信道信息，以检测基站的特性。 例如，所识别的辅助导频信道信息可以与存储的辅助导频信道信息（例如白名单，黑名单中包括的沃尔什码）进行比较。 此外，可以基于检测到的特性来读取同步信道。 此外，例如，可以分析公共导频信道以搜索为毫微微小区基站保留的伪噪声（PN）偏移，并且响应于至少检测到的辅助导频信道的扫描可以被启动 一个保留的PN偏移。

    IDLE HANDOFF TO HYBRID FEMTO CELL BASED ON SYSTEM SELECTION DATABASE
    19.
    发明申请
    IDLE HANDOFF TO HYBRID FEMTO CELL BASED ON SYSTEM SELECTION DATABASE 有权
    基于系统选择数据库的混合有限元细胞的空闲手柄

    公开(公告)号：US20100279689A1

    公开(公告)日：2010-11-04

    申请号：US12769496

    申请日：2010-04-28

    申请人： Peerapol Tinnakornsrisuphap ,  Young C. Yoon ,  Ravindra M. Patwardhan ,  Srinivasan Balasubramanian

    发明人： Peerapol Tinnakornsrisuphap ,  Young C. Yoon ,  Ravindra M. Patwardhan ,  Srinivasan Balasubramanian

    IPC分类号： H04W36/00

    CPC分类号： H04W36/14 ,  H04W36/0077 ,  H04W36/06 ,  H04W48/18 ,  H04W84/045 ,  H04W88/10

    摘要： Devices and methods are provided for facilitating handing over to a hybrid femto access point that implements multiple radio access technologies (RATs), including a first RAT and a second RAT. In one embodiment, the method involves detecting a pilot from the hybrid femto access point, wherein the pilot is associated with the first RAT. The method involves registering with the hybrid femto access point on a first channel associated with the first RAT based upon the detected pilot. A system selection database is analyzed to identify a second channel associated with the second RAT, and a selection to handover to the identified second channel is effectuated.

    摘要翻译： 提供了设备和方法，以便于切换到实现包括第一RAT和第二RAT的多个无线电接入技术（RAT）的混合毫微微接入点。 在一个实施例中，该方法涉及从混合毫微微接入点检测导频，其中导频与第一RAT相关联。 该方法包括基于检测到的导频在与第一RAT相关联的第一信道上与混合毫微微接入点进行注册。 分析系统选择数据库以识别与第二RAT相关联的第二信道，并且实现切换到所识别的第二信道的选择。

    PREFERRED SYSTEM SELECTION ENHANCEMENTS FOR MULTI-MODE WIRELESS SYSTEMS
    20.
    发明申请
    PREFERRED SYSTEM SELECTION ENHANCEMENTS FOR MULTI-MODE WIRELESS SYSTEMS 有权
    多模式无线系统的优选系统选择增强

    公开(公告)号：US20100015978A1

    公开(公告)日：2010-01-21

    申请号：US12423520

    申请日：2009-04-14

    申请人： Young C. Yoon ,  Srinivasan Balasubramanian ,  Arvind Swaminathan

    发明人： Young C. Yoon ,  Srinivasan Balasubramanian ,  Arvind Swaminathan

    IPC分类号： H04W60/00

    CPC分类号： H04W48/16 ,  H04W8/18 ,  H04W48/18 ,  H04W88/06

    摘要： Systems and methodologies are described that facilitate improved multi-mode system selection in a wireless communication system. As described herein, various techniques can be utilized to synthesize system databases corresponding to disparate groups of radio access technologies (RATs), such as a Public Land Mobile Network (PLMN) list and/or a Preferred Roaming List (PRL), with one or more overlay databases and associated location information to generate a multi-mode list of preferred systems. As described herein, a preferred system listing can be constructed to leverage fine granularity of information in one or more databases while still supporting databases with coarser information. Techniques are additionally described herein for augmenting and/or grouping one or more overlay databases to facilitate a higher available granularity of information for various RATs than that provided in system databases corresponding to the RATs. Techniques are additionally provided for automated generation of preferred system listing based on changes to observed location.

    摘要翻译： 描述了有助于在无线通信系统中改进的多模式系统选择的系统和方法。 如本文所描述的，可以使用各种技术来合成对应于诸如公共陆地移动网络（PLMN）列表和/或优选漫游列表（PRL）的无线电接入技术（RAT）的不同组的系统数据库，其中一个或 更多的覆盖数据库和相关联的位置信息，以生成优选系统的多模式列表。 如本文所述，可以构建优选的系统列表，以利用一个或多个数据库中的细粒度的信息，同时仍然支持具有较粗信息的数据库。 本文另外描述了用于增强和/或分组一个或多个覆盖数据库的技术，以促进针对各种RAT的信息的更高的可用粒度，而不是与对应于RAT的系统数据库中提供的信息的更高的可用粒度。 另外还提​​供了用于基于对观察位置的变化来自动生成优选系统列表的技术。