Downlink power control in a cellular mobile radio communications system
    1.
    发明授权
    Downlink power control in a cellular mobile radio communications system 失效
    蜂窝移动无线电通信系统中的下行链路功率控制

    公开(公告)号:US6144861A

    公开(公告)日:2000-11-07

    申请号:US55781

    申请日:1998-04-07

    CPC分类号: H04W52/24 H04W52/40

    摘要: The transmit power of a base station transmission to a mobile station is advantageously controlled. The base station receives a signal from the mobile station and determines a signal-to-interference ratio (SIR) associated with the received signal. The base station controls its transmit power to the mobile station using the determined SIR value in conjunction with a transmit power control command received from the mobile station. When the mobile station is in the process of a soft handover involving two or more base stations, each of those base stations determines an SIR value associated with a signal received from the mobile station. Moreover, each of the base stations controls its respective power using both the power control command received from the mobile station and the SIR determined by that base station. Similarly, when the mobile station is in the process of softer handover involving two or more sectors of a single base station, the SIR associated with a signal received from the mobile station in each of those base station sectors is determined and used to control the respective power of each base station sector in conjunction with a power control command received from the mobile station.

    摘要翻译: 有利地控制基站传输到移动台的发射功率。 基站从移动站接收信号,并确定与接收信号相关联的信号干扰比(SIR)。 结合从移动台接收到的发射功率控制命令,基站使用确定的SIR值来控制其对移动站的发射功率。 当移动台处于涉及两个或多个基站的软切换的过程中时,这些基站中的每个基站确定与从移动台接收的信号相关联的SIR值。 此外,每个基站使用从移动台接收的功率控制命令和由该基站确定的SIR来控制其各自的功率。 类似地,当移动站处于涉及单个基站的两个或更多个扇区的更软切换的过程中时,确定与从这些基站扇区中的每一个中的移动站接收到的信号相关联的SIR,并用于控制相应的 结合从移动台接收的功率控制命令,每个基站扇区的功率。

    Integrated power control and congestion control in a communication system
    2.
    发明授权
    Integrated power control and congestion control in a communication system 失效
    通信系统中的集成功率控制和拥塞控制

    公开(公告)号:US6128506A

    公开(公告)日:2000-10-03

    申请号:US937018

    申请日:1997-09-24

    IPC分类号: H04B7/005 H04W52/24 H04W52/34

    CPC分类号: H04W52/343 H04W52/24

    摘要: A method of stabilizing a communication system having base stations and mobile stations using integrated control of both signal transmission power levels and signal congestion levels. In particular, the method includes measuring a quality such as a signal to interference ratio of a signal transmitted from a mobile station to a base station and measuring a total received signal power at the base station. The signal transmission power of the mobile station is changed based on comparisons of the measured signals with predetermined threshold values. When the measured total received signal power at the base station exceeds the corresponding predetermined threshold value, a congestion control algorithm is executed to reduce the signal congestion level.

    摘要翻译: 一种使用集成控制信号传输功率电平和信号拥塞级别来稳定具有基站和移动站的通信系统的方法。 特别地,该方法包括测量诸如从移动台向基站发送的信号的信号干扰比的质量,并测量基站处的总接收信号功率。 基于测量信号与预定阈值的比较来改变移动台的信号发送功率。 当基站测量的总接收信号功率超过相应的预定阈值时,执行拥塞控制算法以减少信号拥塞水平。

    DATA COMPRESSION IN A COMMUNICATIONS NETWORK
    4.
    发明申请
    DATA COMPRESSION IN A COMMUNICATIONS NETWORK 审中-公开
    通信网络中的数据压缩

    公开(公告)号:US20150172421A1

    公开(公告)日:2015-06-18

    申请号:US14407614

    申请日:2013-06-13

    IPC分类号: H04L29/06 H04W4/18 H04W28/02

    摘要: A method and apparatus for data compression in a mobile communication network. A node performing data compression on a downlink towards a mobile terminal compresses data based on an identity of a decompression node. A determination is made that the mobile terminal is no longer receiving data from the decompression node owing to mobility the mobile terminal. An identity of a further decompression node from which the mobile terminal receives data is determined, and data is compressed based on the identity of the further decompression node. The node performing compression can therefore dynamically adapt to mobility of the terminal, potentially resulting in a shorter learning phase.

    摘要翻译: 一种用于移动通信网络中的数据压缩的方法和装置。 在针对移动终端的下行链路上执行数据压缩的节点基于解压缩节点的身份来压缩数据。 确定移动终端由于移动终端而不再从解压缩节点接收数据。 确定移动终端从其接收数据的进一步解压缩节点的身份,并且基于进一步解压缩节点的身份来压缩数据。 因此,执行压缩的节点可以动态地适应终端的移动性,潜在地导致较短的学习阶段。

    Modified downlink power control during macrodiversity
    5.
    发明授权
    Modified downlink power control during macrodiversity 失效
    在宏分集中修改下行链路功率控制

    公开(公告)号:US6085108A

    公开(公告)日:2000-07-04

    申请号:US57793

    申请日:1998-04-09

    CPC分类号: H04B7/022 H04W52/40 H04W52/36

    摘要: The power levels of signals transmitted by base stations in a communication are controlled. Power level control commands are transmitted from a remote station to base stations from which the remote station receives signals to control the power levels of the signals transmitted by the base stations. A determination is made whether the remote station simultaneously receives a first signal from a first base station and at least one second signal from at least one second base station that include substantially identical message information. The first and second base stations transmit first and second reports of power levels of the first and second signals, respectively, to the controller. The controller compares the first and second reports and transmits first and second commands for adjusting the power levels of the first and second signals to the first and second base stations, respectively. The power level control commands are transmitted from the remote station to the base stations less frequently during macrodiversity to reduce the signalling requirements between the controller and the base stations. Also, the step size of the adjustment of the power levels of the first and second signals by the controller is reduced during macrodiversity to reduce the signalling requirements. This power control method is particularly beneficial for a CDMA system.

    摘要翻译: 在通信中由基站发送的信号的功率电平被控制。 功率电平控制命令从远程站发送到远程站从其接收信号的基站,以控制由基站发送的信号的功率电平。 确定远程站是同时从第一基站接收第一信号以及来自至少一个第二基站的至少一个第二信号,其包括基本相同的消息信息。 第一和第二基站分别向控制器发送第一和第二信号的功率电平的第一和第二报告。 控制器比较第一和第二报告,并且发送用于将第一和第二信号的功率电平分别调整到第一和第二基站的第一和第二命令。 在宏分集期间,功率电平控制命令从远端站发送到基站,以减少控制器与基站之间的信令要求。 此外,在宏分集期间减少了由控制器调节第一和第二信号的功率电平的步长以减少信令要求。 该功率控制方法对于CDMA系统是特别有益的。