Method for interference cancellation in a cellular CDMA network
    1.
    发明授权
    Method for interference cancellation in a cellular CDMA network 失效
    蜂窝CDMA网络中的干扰消除方法

    公开(公告)号:US5862124A

    公开(公告)日:1999-01-19

    申请号:US714161

    申请日:1996-11-22

    摘要: Interference in a cellular CDMA network due to mobile stations causing multiple use of one carrier frequency in neighboring cells is cancelled. A hard handover is implemented by defining the phase of a spread spectrum code in a signal transmitted from a base station to a mobile followed by measurement of signal strength in the mobile. Thereafter, the result is reported to the CDMA network, inferring whether the mobile interferes with the base station of the neighboring cells. If interference is present, the surrounding base stations are informed about the mobile station channel used, and this information is taken into account in the receivers of signals transmitted by other mobiles within the cell. The measurement results of the mobile are provided as initial values to the parameters required by the initialization of the interference cancellation routines performed in a neighboring base station. In another embodiment, it is decided whether the mobile station has to be monitored at the neighboring base stations by comparing the measurement results with a predetermined threshold value.

    摘要翻译: PCT No.PCT / FI95 / 00146 Sec。 371日期:1996年11月22日 102(e)日期1996年11月22日PCT 1995年3月20日PCT公布。 出版物WO95 / 26593 日期1995年10月5日由于在相邻小区中导致多个使用一个载波频率的移动站而导致的蜂窝CDMA网络中的干扰被取消。 通过在从基站发送到移动站的信号中定义扩频码的相位,随后在移动台中测量信号强度来实现硬切换。 此后,将结果报告给CDMA网络,推断移动台是否干扰相邻小区的基站。 如果存在干扰,则周围的基站被通知关于所使用的移动站信道,并且该信息在接收机中被考虑到由小区内的其他移动台发送的信号。 将移动台的测量结果作为在相邻基站中执行的干扰消除例程的初始化所需的参数的初始值提供。 在另一实施例中,通过将测量结果与预定阈值进行比较来确定是否必须在相邻基站处监视移动台。

    Method for estimating received power and a receiver
    2.
    发明授权
    Method for estimating received power and a receiver 失效
    估计接收功率的方法和接收机

    公开(公告)号:US5845208A

    公开(公告)日:1998-12-01

    申请号:US549804

    申请日:1996-04-08

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

    CPC分类号: H04W24/10 H04W36/30

    摘要: A receiver, and a method for estimating received power in a cellular radio system having in each cell at least one base station communicating with mobile stations within its coverage area. The mobile stations measure strength of the signal received from a base station, and report the measurement results to that base station. To improve power adjustment, a model describing the dynamic behavior of the signal is created for the received power on each connection. The model is utilized for power adjustment, as well as for making handover decisions.

    摘要翻译: PCT No.PCT / FI95 / 00141 Sec。 371日期:1996年4月8日 102(e)日期1996年4月8日PCT 1995年3月16日PCT公布。 WO95 / 25365 PCT出版物 1995年9月21日,一种接收机,以及一种在蜂窝无线电系统中估计接收功率的方法,在每个小区中至少有一个基站与其覆盖区域内的移动台进行通信。 移动站测量从基站接收的信号的强度,并将测量结果报告给该基站。 为了改善功率调整,为每个连接的接收功率创建描述信号的动态特性的模型。 该模型用于功率调整以及进行切换决策。

    Method for adjusting transmission power in a cellular radio system and a
subscriber equipment
    3.
    发明授权
    Method for adjusting transmission power in a cellular radio system and a subscriber equipment 失效
    用于调整蜂窝无线电系统和用户设备中的发射功率的方法

    公开(公告)号:US5806003A

    公开(公告)日:1998-09-08

    申请号:US591571

    申请日:1996-01-11

    摘要: Transmission power control of a mobile terminal unit in a cellular telecommunication system, in which: the base station informs the mobile units of its existence on a common control channel in a TDMA slot, at least one control channel is dedicated to the mobile terminals seeking connection, and the power level of the connection-seeking signal is dependent of the measured power level, downlink, from the base station.

    摘要翻译: PCT No.PCT / FI94 / 00321 Sec。 371日期1996年1月11日 102(e)日期1996年1月11日PCT提交1994年7月12日PCT公布。 WO95 / 02950 PCT出版物 日期1995年1月26日蜂窝电信系统中的移动终端单元的传输功率控制,其中:基站在TDMA时隙中的公共控制信道上通知移动单元其存在,至少一个控制信道专用于 寻找连接的移动终端,连接寻求信号的功率电平取决于从基站测量的功率电平,下行链路。

    Base station receiver equipment
    4.
    发明授权
    Base station receiver equipment 失效
    基站接收设备

    公开(公告)号:US5684793A

    公开(公告)日:1997-11-04

    申请号:US564197

    申请日:1996-03-22

    摘要: A rake-type CDMA base station receiver equipment, including a plurality of correlators each having a received signal as its input, a plurality of diversity combiners for respective receiver branches, and a measurer for measuring the quality of the received signal. To reduce the number of correlators and diversity combiners, the receiver equipment further includes switches for switching the correlators to the different combiners, and controllers for controlling the switches on the basis of data sent from the measurer for measuring the quality of the received signal or on the basis of the capacity loading of the base station receiver equipment.

    摘要翻译: PCT No.PCT / FI94 / 00239 Sec。 371日期:1996年3月22日 102(e)1996年3月22日PCT 1994年6月6日PCT公布。 第WO94 / 30025号公报 日期1994年12月22日耙式CDMA基站接收机设备,包括各自具有接收信号作为其输入的多个相关器,用于各个接收器分支的多个分集组合器,以及用于测量接收信号质量的测量器 。 为了减少相关器和分集组合器的数量,接收机设备还包括用于将相关器切换到不同组合器的开关,以及用于根据测量器发送的数据控制开关的控制器,用于测量接收信号的质量或开 基站接收设备容量负载的基础。

    Method for transmitting calls of different priorities which are
associated with different power levels in a cellular network
    5.
    发明授权
    Method for transmitting calls of different priorities which are associated with different power levels in a cellular network 失效
    用于发送与蜂窝网络中的不同功率电平相关联的不同优先级的呼叫的方法

    公开(公告)号:US5930684A

    公开(公告)日:1999-07-27

    申请号:US696861

    申请日:1996-08-19

    摘要: The invention relates to a method for transmitting calls of different priorities in a cellular network which comprises in each cell at least one base station (10) communicating with subscriber terminals (11a-11d, 13) within its area, and in which network the base station transmits power control information to the terminal equipments, which may adjust their transmit power on the basis of the power control messages from the base station, the calls of the network having different levels of priority. In order to ensure the call establishment and the quality of calls with a high priority, the calls with a high priority use a higher transmit power than what is allowed for calls with a lower priority.

    摘要翻译: PCT No.PCT / FI95 / 00082 Sec。 371日期:1995年8月19日 102(e)日期1996年8月19日PCT提交1996年2月17日PCT公布。 第WO95 / 24102号公报 日期1995年9月8日本发明涉及一种用于在蜂窝网络中发送不同优先级的呼叫的方法,该方法在每个小区中包括与其区域内的用户终端(11a-11d,13)通信的至少一个基站(10),以及 在哪个网络中,基站向终端设备发送功率控制信息,终端设备可以基于来自基站的功率控制消息来调整其发射功率,网络的呼叫具有不同的优先级。 为了确保呼叫建立和高优先级的呼叫质量,具有高优先级的呼叫使用比具有较低优先级的呼叫允许的更高的发送功率。

    Method for eliminating multiple-access interference and a mobile station
    6.
    发明授权
    Method for eliminating multiple-access interference and a mobile station 失效
    消除多址干扰的方法和移动台

    公开(公告)号:US5799004A

    公开(公告)日:1998-08-25

    申请号:US637659

    申请日:1996-07-02

    摘要: A mobile station, and a method for eliminating multiple-access interference in a CDMA cellular radio system having a plurality of cells each having at least one base station communicating with mobile stations residing in the respective cell and informing the respective mobile stations of at least one spreading code used in a neighboring cell, the mobile stations measuring the code phase and power level of a channel of the neighboring cell using the known spreading code. To reduce the effect of multiple-access interference, the signal received at the mobile station is utilized in the detection of the desired signal by using the code phase and power level of the measured channel using the known spreading code of the neighboring cell.

    摘要翻译: PCT No.PCT / FI94 / 00478 Sec。 371日期:1996年7月2日 102(e)日期1996年7月2日PCT 1994年10月21日PCT PCT。 公开号WO95 / 11259 日期1995年5月4日A移动台以及消除CDMA蜂窝无线电系统中的多址干扰的方法,所述CDMA蜂窝无线电系统具有多个小区,每个小区各自具有至少一个基站与驻留在各个小区中的移动站进行通信,并通知各个移动站 在相邻小区中使用的至少一个扩展码,移动站使用已知的扩展码来测量相邻小区的信道的码相位和功率电平。 为了减少多址干扰的影响,使用相邻小区的已知扩展码,通过使用测量信道的码相位和功率电平,将在移动台处接收到的信号用于检测期望信号。