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    Efficient deployment of mobility management entity (MME) with stateful geo-redundancy
    1.
    发明申请
    Efficient deployment of mobility management entity (MME) with stateful geo-redundancy 审中-公开
    具有状态地理冗余的移动性管理实体（MME）的高效部署

    公开(公告)号：US20110235505A1

    公开(公告)日：2011-09-29

    申请号：US12956267

    申请日：2010-11-30

    申请人： Srinivas Eswara ,  Michael Brown ,  Carlos Molina ,  Haibo Qian

    发明人： Srinivas Eswara ,  Michael Brown ,  Carlos Molina ,  Haibo Qian

    IPC分类号： H04L12/26

    CPC分类号： H04W8/18 ,  H04L43/10 ,  H04W8/20 ,  H04W24/00 ,  H04W24/04

    摘要： This disclosure describes a method to provide stateful geographic redundancy for the LTE MME (Mobility Management Entity) function of the 3GPP E-UTRAN Evolved Packet core (EPC). The method provides MME many-to-one (“n:1”) stateful redundancy by building upon the S1-Flex architecture, which enables a MME Pool Area to be defined as an area within which a UE (User Equipment) may be served without need to change the serving MME. Geographic redundancy is achieved by utilizing a standby MME node deployed to backup a pool of MME nodes, with the standby MME node designed to handle the large volume of journaling or synchronization messages from all the MME nodes in the pool. The standby MME node takes over the personality and responsibility of any MME node in the pool that has failed, with minimal impact to subscribers that were being served by that failed MME node.

    摘要翻译： 本公开描述了为3GPP E-UTRAN演进分组核心（EPC）的LTE MME（移动性管理实体）功能提供有状态的地理冗余的方法。 该方法通过建立在S1-Flex架构上提供MME多对一（“n：1”）状态冗余，这使得能够将MME池区域定义为可以在其中服务UE（用户设备）的区域 而不需要改变服务MME。 通过利用被部署来备份MME节点池的备用MME节点来实现地理冗余，备用MME节点被设计为处理来自池中所有MME节点的大量日志记录或同步消息。 备用MME节点接管失败的池中的任何MME节点的个性和责任，对由该故障的MME节点服务的用户的影响最小。

    Adaptive power level tiered cellular mobile communications systems
    7.
    发明授权
    Adaptive power level tiered cellular mobile communications systems 有权
    自适应功率级分层蜂窝移动通信系统

    公开(公告)号：US06370383B1

    公开(公告)日：2002-04-09

    申请号：US09395662

    申请日：1999-09-14

    申请人： Marcus C. Leatham ,  Regena L. Richardson ,  Srinivas Eswara

    发明人： Marcus C. Leatham ,  Regena L. Richardson ,  Srinivas Eswara

    IPC分类号： H04Q736

    CPC分类号： H04W16/06 ,  H04W16/32

    摘要： An adaptive power tiered cell includes inner and outer tiers. Each one of a plurality of communication channels for servicing mobile terminals operating within the cell is assigned to either the inner tier or the outer tier. When a switch of one of the channels assigned to serve mobile terminals operating in a first one of the inner and outer tiers to serving mobile terminals operating in the other one of the first and second tiers is detected, the inner at tier is re-sized such that a ratio of the area of the first tier to the area of the cell matches a ratio of the number of channels serving mobile terminals operating in the inner tier to the number of channels serving mobile terminals operating in the cell. To re-size the inner tier such that a ratio of the area of the inner tier to the area of the cell matches a ratio of the number of channels serving mobile terminals operating in the inner tier to the number of channels serving mobile terminals operating in the cell, a power level threshold value which defines an outer peripheral edge of the inner tier is adjusted.

    摘要翻译： 自适应功率分层单元包括内层和外层。 用于维护在小区内操作的移动终端的多个通信信道中的每一个被分配给内层或外层。 当检测到分配给服务于内层和外层中的第一层的移动终端的服务之一的切换到在第一层和第二层的另一层中操作的服务移动终端时，内层被重新设置 使得第一层的面积与单元的面积的比率与服务于内层中的移动终端的服务数量与在小区中操作的移动终端的频道数量的比率相匹配。 为了重新调整内层的尺寸，使得内层的区域与区域的面积的比率与服务于在内层中运行的移动终端的信道数量与服务移动终端的信道数量的比率相匹配 调整该单元，定义内层的外围边缘的功率水平阈值。

    System and method of integrating dynamic frequency association with channel borrowing techniques
    8.
    发明授权
    System and method of integrating dynamic frequency association with channel borrowing techniques 有权
    将动态频率关联与信道借用技术相结合的系统和方法

    公开(公告)号：US06219554B1

    公开(公告)日：2001-04-17

    申请号：US09148378

    申请日：1998-09-04

    申请人： Srinivas Eswara ,  Daniel Thomas Carter ,  Michael John McCarthy ,  Shalini Periyalwar ,  James Eric Wilson

    发明人： Srinivas Eswara ,  Daniel Thomas Carter ,  Michael John McCarthy ,  Shalini Periyalwar ,  James Eric Wilson

    IPC分类号： H04Q720

    CPC分类号： H04W16/06

    摘要： A Dynamic Frequency Association (“DFA”) techniques comprising fixed channel allocation (“FCA”) and distributed channel borrowing techniques using a segregation scheme is described. The DFA technique can be used autonomously to dynamically determine the best channels for a cell cluster. Additionally, a method of minimizing search delays at channel assignment by employing a channel usage history is disclosed. In one aspect, as in FCA, each cell is assigned its nominal channels, if any, from the available frequency spectrum, with a fixed radio assigned to each of these frequencies, respectively. Additionally, in accordance with the teachings of the present invention, each cell is equipped with one or more radios designated as “DFA radios”. In operation, idle DFA radios scan channels that may be borrowed in order to build a probability matrix. This enables the cell to determine which channels to use for traffic prior to actual channel request by a mobile. This reduces the search delay experienced in classic segregation schemes.

    摘要翻译： 描述了使用分离方案的包括固定信道分配（“FCA”）和分布式信道借用技术的动态频率关联（“DFA”）技术。 可以自动地使用DFA技术来动态地确定小区簇的最佳信道。 另外，公开了通过采用信道使用历史来最小化信道分配的搜索延迟的方法。 在一个方面，如在FCA中，每个小区分配有来自可用频谱的标称信道（如果有的话），固定无线电分别分配给这些频率中的每一个。 另外，根据本发明的教导，每个小区配备有被称为“DFA无线电”的一个或多个无线电设备。 在操作中，空闲的DFA无线电扫描可以借用的通道，以构建概率矩阵。 这使得小区能够在移动台实际的信道请求之前确定用于流量的哪些信道。 这减少了经典隔离方案中遇到的搜索延迟。

    Narrow beam traffic channel assignment method and apparatus
    10.
    发明授权
    Narrow beam traffic channel assignment method and apparatus 有权
    窄波束业务信道分配方法及装置

    公开(公告)号：US06597927B1

    公开(公告)日：2003-07-22

    申请号：US09321517

    申请日：1999-05-27

    申请人： Srinivas Eswara ,  Keith S. Wilson ,  Michael J. McCarthy

    发明人： Srinivas Eswara ,  Keith S. Wilson ,  Michael J. McCarthy

    IPC分类号： H04Q720

    CPC分类号： H01Q25/00 ,  H01Q1/246 ,  H04W16/24 ,  H04W16/28 ,  H04W24/10 ,  H04W64/00 ,  H04W72/04

    摘要： Disclosed is an apparatus for reducing the number of control signal channels required in a wireless communication system by using a umbrella control signal to initially communicate with an MS (mobile station) within the umbrella and to assign the MS to a traffic frequency corresponding to one of a plurality of antenna used to cover the area covered by said umbrella control signal. Logic is used in combination with measured relative signal strengths to determine the position of the MS relative to the reliable reception coverage area of each of the plurality of antennas before the assignment is made.

    摘要翻译： 公开了一种通过使用伞控制信号来初始地与伞内的MS（移动台）进行通信，并且将MS分配给与下列之一的业务频率对应的业务频率来减少无线通信系统中所需的控制信号信道的数量的装置： 多个天线，用于覆盖由所述伞控制信号覆盖的区域。 与测量的相对信号强度组合使用逻辑，以在分配之前确定MS相对于多个天线中的每一个的可靠接收覆盖区域的位置。