利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

11 条记录 (耗时 0.021 秒)

    Dynamic thresholding for mobile assisted handoff in a digital cellular communication system
    1.
    发明授权
    Dynamic thresholding for mobile assisted handoff in a digital cellular communication system 失效
    数字蜂窝通信系统中移动辅助切换的动态阈值

    公开(公告)号：US5483669A

    公开(公告)日：1996-01-09

    申请号：US118554

    申请日：1993-09-09

    申请人： Charles A. Barnett ,  Stanley E. Kay ,  Lou King ,  Ashok D. Mehta

    发明人： Charles A. Barnett ,  Stanley E. Kay ,  Lou King ,  Ashok D. Mehta

    IPC分类号： H04W36/30 ,  H04B7/26 ,  H04Q7/22

    CPC分类号： H04W36/30

    摘要： A method and system for handing off an on-going communication from a serving cell to a neighboring cell of a cellular communication system having mobile units with a scanning capability. A dynamic threshold is calculated for effecting the handoff under certain operating criteria. The minimum attenuation level of the mobile unit and the minimum level permitted by a neighboring cell is used in selecting the dynamic threshold.

    摘要翻译： 一种用于将正在进行的通信从服务小区切换到具有扫描能力的移动单元的蜂窝通信系统的相邻小区的方法和系统。 计算动态阈值以在某些操作标准下实现切换。 在选择动态阈值时使用移动单元的最小衰减水平和相邻小区允许的最小电平。

    Method and system for effecting handoff in a cellular communication system
    2.
    发明授权
    Method and system for effecting handoff in a cellular communication system 失效
    在蜂窝通信系统中实现切换的方法和系统

    公开(公告)号：US5422933A

    公开(公告)日：1995-06-06

    申请号：US118560

    申请日：1993-09-09

    申请人： Charles A. Barnett ,  Stanley E. Kay ,  Lou King ,  Ashok D. Mehta

    发明人： Charles A. Barnett ,  Stanley E. Kay ,  Lou King ,  Ashok D. Mehta

    IPC分类号： H04W36/30 ,  H04M11/00

    CPC分类号： H04W36/30

    摘要： A method and system for handing off an on-going communication from a serving cell to a neighboring cell of a cellular communication system having scanning receivers associated with each base transceiver station. A dynamic threshold is calculated for effecting the handoff in accordance with various operating conditions. The current mobile minimum attentuation level, (MT) the minimum permissible attenuation level of a serving (MS) cell and a neighboring cell (MN), together with the RF signal strength of the mobile unit at the neighboring cell (RSSI-NBR) and the serving cell (RSSI-SRV) are used in calculating a dynamic threshold (RSSI-THP).

    摘要翻译： 一种用于将正在进行的通信从服务小区切换到具有与每个基站收发器相关联的扫描接收机的蜂窝通信系统的相邻小区的方法和系统。 计算动态阈值以根据各种操作条件实现切换。 当前移动最小注意度（MT）服务（MS）小区和相邻小区（MN）的最小允许衰减水平以及相邻小区（RSSI-NBR）处的移动单元的RF信号强度和 服务小区（RSSI-SRV）用于计算动态阈值（RSSI-THP）。

    Prioritization of neighboring cells
    3.
    发明授权
    Prioritization of neighboring cells 失效
    相邻细胞的优先级

    公开(公告)号：US5509051A

    公开(公告)日：1996-04-16

    申请号：US118710

    申请日：1993-09-09

    申请人： Charles A. Barnett ,  Ashok D. Mehta ,  Lou King

    发明人： Charles A. Barnett ,  Ashok D. Mehta ,  Lou King

    IPC分类号： H04W36/30 ,  H04B1/00

    CPC分类号： H04W36/30

    摘要： Each cell has an assigned classification that determines its inclusion in a measurement list for handing off. The candidate cells, which are selected from the measurement list are given priority level assignments. The priority levels are implemented by the candidate neighboring cells measured RF signal strength; and the order of handing off is arranged in accordance with the adjusted RF signal strength.

    摘要翻译： 每个单元格都有一个分配的分类，确定其包含在测量列表中以便切换。 从测量列表中选择的候选单元被赋予优先级分配。 优先级由候选相邻小区实现RF信号强度; 并且根据调整的RF信号强度来排列切换顺序。

    Transmission power level adjustment in radio telephony
    7.
    发明授权
    Transmission power level adjustment in radio telephony 失效
    无线电话传输功率电平调整

    公开(公告)号：US5357513A

    公开(公告)日：1994-10-18

    申请号：US118553

    申请日：1993-09-09

    申请人： Stanley E. Kay ,  John E. Corrigan, III ,  Daniel R. Wendling ,  Ashok D. Mehta ,  Michael I. Parr

    发明人： Stanley E. Kay ,  John E. Corrigan, III ,  Daniel R. Wendling ,  Ashok D. Mehta ,  Michael I. Parr

    IPC分类号： G10L19/00 ,  H04B7/26 ,  H04J3/17 ,  H04L12/28 ,  H04L12/56 ,  H04W28/06 ,  H04W72/04 ,  H04W74/04 ,  H04J3/16

    CPC分类号： H04W72/0406 ,  G10L19/012 ,  H04B7/26 ,  H04B7/2643 ,  H04J3/172 ,  H04W72/044 ,  H04W28/06 ,  H04W72/0413 ,  H04W72/042

    摘要： A mobile telephone system multiplexes plural voice traffic channels on a single carrier using a TDMA protocol. The capacity of the mobile telephone system is increased by assigning voice traffic capacity, not on a conversation basis, but on a speech spurt basis. Accordingly, delays of undetermined duration may occur between subsequent information bursts which correspond to the transmission of speech spurts. An adjustment request regarding the power with which the information bursts are transmitted from a transmitting station to a receiving station is generated by detecting an information burst transmission at the receiving station, measuring the time which elapses following the transmission, and comparing the elapsed time with a predetermined threshold value. If the elapsed time exceeds the threshold, a further transmission is requested from the transmitting station notwithstanding the availability of any information to transmit. The power of the transmission received in response to the request is measured and a control message for requesting an adjustment to the transmission power level in response to the measurement is transmitted to the transmitting station.

    摘要翻译： 移动电话系统使用TDMA协议在单个载波上复用多个语音业务信道。 移动电话系统的容量通过分配语音流量来提高，而不是在对话的基础上，而是基于语音突发。 因此，在对应于语音喷发的传输的后续信息突发之间可能发生不确定持续时间的延迟。 通过检测在接收站处的信息突发传输，测量发送之后经过的时间，并将经过的时间与a的比较来生成关于从发送站向接收站发送信息突发的功率的调整请求 预定阈值。 如果所经过的时间超过阈值，则尽管有任何要发送的信息的可用性，仍然从发送站请求进一步的传输。 测量响应于该请求而接收到的传输的功率，并且向发送站发送用于响应于测量而请求调整发射功率电平的控制消息。

    Channel compression and dynamic repartitioning for dual mode cellular radio
    8.
    发明授权
    Channel compression and dynamic repartitioning for dual mode cellular radio 失效
    双模蜂窝无线电的信道压缩和动态重新分配

    公开(公告)号：US5343513A

    公开(公告)日：1994-08-30

    申请号：US870976

    申请日：1992-04-20

    申请人： Stanley E. Kay ,  George D. Farmer ,  Hans Bhatia ,  Ashok D. Mehta ,  Christopher J. Kain ,  Nicholas P. Sampson

    发明人： Stanley E. Kay ,  George D. Farmer ,  Hans Bhatia ,  Ashok D. Mehta ,  Christopher J. Kain ,  Nicholas P. Sampson

    IPC分类号： H04W24/00 ,  H04M11/00 ,  H04J3/16 ,  H04Q7/00

    CPC分类号： H04W24/00

    摘要： A cellular system uses dynamic repartitioning and channel packing to improve capacity without impacting quality. Dynamic repartitioning is employed to convert a carrier which operates, at one time, as an analog carrier to operate, at a later time, as a digital carrier in response to changes in offered traffic. Alternatively, a carrier which, at one time, operates as a digital carrier is converted to operate, at a later time, as an analog carrier in response to changes in offered traffic. Channel packing is used to allocate as many digital channels as possible to as few digital carriers as possible. In a preferred embodiment, both repartitioning and channel packing are implemented in response to call origination or call termination.

    摘要翻译： 蜂窝系统使用动态重新分配和信道包装来提高容量而不影响质量。 采用动态重新分配来转换一次作为模拟载波工作的载波，以便在随后的时间作为响应于所提供的业务的变化的数字载波进行操作。 或者，一次作为数字载波操作的载波被转换为响应于所提供的业务的改变而在稍后的时间作为模拟载波进行操作。 信道打包用于将尽可能多的数字信道尽可能多地分配给尽可能少的数字载波。 在优选实施例中，重新分配和信道打包都是响应于呼叫发起或呼叫终止来实现的。

    Sequential power estimation for cellular system handoff
    9.
    发明授权
    Sequential power estimation for cellular system handoff 失效
    蜂窝系统切换的顺序功率估计

    公开(公告)号：US5367559A

    公开(公告)日：1994-11-22

    申请号：US881271

    申请日：1992-05-11

    申请人： Stanley Kay ,  Youngky Kim ,  Lou King ,  Ashok D. Mehta ,  Charles Barnett

    发明人： Stanley Kay ,  Youngky Kim ,  Lou King ,  Ashok D. Mehta ,  Charles Barnett

    IPC分类号： H04W36/30 ,  H04M11/00

    CPC分类号： H04W36/30

    摘要： Cellular handoff is improved by tailing or adapting the measurement time based on the characteristics of the received signal intensity or power. More particularly, base stations typically measure mobile signal power in order to determine the necessity for handoff and the identity of a new cell. The measurement time must be of a duration which is sufficient to characterize the environment of the mobile. In accordance with the invention, the duration of the measurement time is determined from the received signal itself. Once the duration of the measurement time is determined, that data may be passed to a target cell along with other handoff data.

    摘要翻译： 基于接收到的信号强度或功率的特性，通过拖尾或调整测量时间来改善蜂窝切换。 更具体地，基站通常测量移动信号功率，以便确定切换的必要性和新小区的身份。 测量时间必须是足以表征移动设备环境的持续时间。 根据本发明，从接收信号本身确定测量时间的持续时间。 一旦确定了测量时间的持续时间，该数据可以与其他切换数据一起传递到目标小区。

    Cellular telephone with datagram and dispatch operation
    10.
    发明授权
    Cellular telephone with datagram and dispatch operation 失效
    蜂窝电话具有数据报和调度操作

    公开(公告)号：US5475689A

    公开(公告)日：1995-12-12

    申请号：US275161

    申请日：1994-07-14

    申请人： Stanley Kay ,  Ashok D. Mehta

    发明人： Stanley Kay ,  Ashok D. Mehta

    IPC分类号： G10L19/00 ,  H04B7/26 ,  H04J3/17 ,  H04L29/06 ,  H04W88/16 ,  H04W88/18 ,  H04W92/20 ,  H04W92/22 ,  H04J3/16

    CPC分类号： H04W88/16 ,  G10L19/012 ,  H04B7/26 ,  H04B7/2643 ,  H04J3/172 ,  H04L29/06 ,  H04W92/22 ,  H04W88/181 ,  H04W92/20

    摘要： A cellular system supports dispatch and datagram operations. The architecture of a conventional cellular system, such as the GSM system, is modified by adding a local area network (TIL) where nodes on the network include various base switching controllers (BSC). The BSC has a Switching Interface Module (SIM) which provides an interface to the TIL. The TIL may also include one or more gateways (40) to landline based networks. The datagram operation uses an appropriate gateway to complete a data path which includes an RF segment to or from the BSC. Dispatch operations provide for switching by the BSC so that switching is at a level below the Mobile Switching Center (MSC). For example, compressed voice traffic received by the BSC may be transmitted over the TIL to another BSC from where it is sent over an RF segment to a mobile receiver (MS).

    摘要翻译： 蜂窝系统支持调度和数据报操作。 诸如GSM系统的常规蜂窝系统的架构通过添加在网络上的节点包括各种基本交换控制器（BSC）的局域网（TIL）来修改。 BSC具有开关接口模块（SIM），其提供到TIL的接口。 TIL还可以包括一个或多个基于固定座的网络的网关（40）。 数据报操作使用适当的网关来完成数据路径，该数据路径包括到BSC或从BSC的RF段。 调度操作提供了由BSC切换，使得切换处于低于移动交换中心（MSC）的水平。 例如，由BSC接收的压缩语音业务可以通过TIL发送到另一BSC，从那里它通过RF段发送到移动接收机（MS）。