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    Method and arrangement for mitigation of intercell interference in a cellular communication system
    95.
    发明申请
    Method and arrangement for mitigation of intercell interference in a cellular communication system 有权
    用于减轻蜂窝通信系统中的小区间干扰的方法和装置

    公开(公告)号：US20050232195A1

    公开(公告)日：2005-10-20

    申请号：US11071954

    申请日：2005-03-03

    Applicant: Alan Jones

    Inventor： Alan Jones

    IPC: H04B1/707 ,  H04Q7/00

    CPC classification number: H04B1/7105 ,  H04B1/70735 ,  H04B2201/70702

    Abstract: A method (400) and arrangement (200) for mitigation of intercell and intracell interference in a 3GPP cellular communication system (100) by, in a receiver in a cell of the system, deriving for a first channel in the cell a signal, representative of first channel transfer function (A(1)); deriving for at least a second channel originating in a different cell a signal (A(2 . . . M)), representative of second channel transfer function, based on: deriving a cell specific scrambling code (s), deriving a channel impulse response (h), and deriving a channelisation code (c); and performing multi-user detection using the first and second signals. Where the channelisation code is unknown, a substitute channelisation code is preferably substituted. It will be appreciated that the technique can be applied to both downlink and uplink. This provides the advantage that both intra-cell interference and intercell interference are mitigated.

    Abstract translation: 一种用于在3GPP蜂窝通信系统（100）中通过在系统的小区中的接收机中缓解小区内的小区间干扰和小区间干扰的方法（400）和装置（200），为小区中的第一信道导出信号，代表 的第一通道传递函数（A （1））; 基于以下方式导出代表第二信道传递函数的信号（A SUP）（2（... M）），所述信号源自不同小区的至少第二信道，导出小区特定扰码 ），导出信道脉冲响应（h），以及导出信道化码（c）; 以及使用第一和第二信号执行多用户检测。 在信道化代码未知的情况下，优选地替换替代信道化码。 应当理解，该技术可以应用于下行链路和上行链路两者。 这提供了细胞间干扰和小区间干扰都被减轻的优点。

    Estimating base station power in a CDMA radio communications network
    96.
    发明申请
    Estimating base station power in a CDMA radio communications network 审中-公开
    估计CDMA无线电通信网络中的基站功率

    公开(公告)号：US20050136965A1

    公开(公告)日：2005-06-23

    申请号：US10954663

    申请日：2004-10-01

    Applicant: Benoit Fourestie ,  Sana Jamaa

    Inventor： Benoit Fourestie ,  Sana Jamaa

    IPC: H04B1/707 ,  H04B7/005 ,  H04B17/00 ,  H04W16/18 ,  H04W52/00 ,  H04W52/34 ,  H04W88/08 ,  H04Q7/20

    CPC classification number: H04W16/18 ,  H04B1/7097 ,  H04B17/309 ,  H04B2201/70702 ,  H04W52/343 ,  H04W88/08

    Abstract: The total powers transmitted and received by a given base station in a CDMA network, as a function of the sum of powers of channels dedicated to mobile terminals having active links with the given base station, are estimated by assuming the total powers transmitted by and received from the neighboring base stations at the given base station equal those of the given base station. Interstation to intrastation and intrastation to interstation interference factors are determined independently of the total powers transmitted to and received by the base stations and are a function only of path attenuation between mobile terminals in given positions and the base stations. The total transmitted and received powers of the given base station are estimated as a function of the ascertained interference factors, to circumvent a large number of iterations for a given power accuracy.

    Abstract translation: 由CDMA网络中的给定基站发送和接收的总功率作为与给定基站具有活动链路的专用于移动终端的信道的功率之和的函数，通过假设由发送和接收的总功率来估计 来自给定基站的相邻基站等于给定基站的相邻基站。 独立于发送到基站和由基站接收的总功率而确定到静态干扰因子和静态干扰的干扰因子，并且仅仅是给定位置的移动终端与基站之间的路径衰减的函数。 根据确定的干扰因子估计给定基站的总发射功率和接收功率，以规避给定功率精度的大量迭代。

    Synchronisation of mobile equipment in time division duplex cdma system
    99.
    发明申请
    Synchronisation of mobile equipment in time division duplex cdma system 有权
    移动设备在时分双工cdma系统中的同步

    公开(公告)号：US20050053048A1

    公开(公告)日：2005-03-10

    申请号：US10492627

    申请日：2001-10-16

    Applicant: Arnoud Van Der Wal ,  Jan Stoter ,  Johan Van De Hee

    Inventor： Arnoud Van Der Wal ,  Jan Stoter ,  Johan Van De Hee

    IPC: H04B7/26 ,  H04B7/216 ,  H04J3/06

    CPC classification number: H04B1/7083 ,  H04B2201/70702

    Abstract: Method for synchronising mobile equipment in a CDMA system comprising a plurality of base stations (11) for communicating with the mobile equipment (12). The base stations (11) are mutually synchronised, and each base station (11) has a synchronisation channel transmit timing offset within a synchronisation time slot (20). The method comprises the step of synchronising the mobile equipment (12) by matching a synchronisation code in the synchronisation time slot (20). Also the following steps are executed by the method: scanning a base radio signal (13) during at least one frame (15) for detecting a signal portion with predetermined characteristics, such as received power peaks (23), the signal portion not being the synchronisation code; deriving timing information associated with the CDMA system from the signal portion; and starting the synchronisation step of the mobile equipment (12) using the timing information.

    Abstract translation: 用于在CDMA系统中同步移动设备的方法，包括用于与移动设备（12）进行通信的多个基站（11）。 基站（11）相互同步，并且每个基站（11）在同步时隙（20）内具有同步信道发送定时偏移。 该方法包括通过匹配同步时隙（20）中的同步码同步移动设备（12）的步骤。 通过该方法执行以下步骤：在用于检测具有预定特性的信号部分（例如接收功率峰值（23））的至少一个帧（15）期间扫描基站无线信号（13），信号部分不是 同步码; 从所述信号部分导出与所述CDMA系统相关联的定时信息; 以及使用所述定时信息开始所述移动设备（12）的同步步骤。

    System and method for GSM hard handoff
    100.
    发明申请
    System and method for GSM hard handoff 有权
    GSM硬切换的系统和方法

    公开(公告)号：US20050037758A1

    公开(公告)日：2005-02-17

    申请号：US10871232

    申请日：2004-06-18

    Applicant: Yoram Rimoni

    Inventor： Yoram Rimoni

    IPC: H04W52/42 ,  H04B1/707 ,  H04L12/56 ,  H04W36/14 ,  H04W36/38 ,  H04Q7/20

    CPC classification number: H04W36/0061 ,  H04B2201/70702 ,  H04W36/0066 ,  H04W36/14 ,  H04W36/38

    Abstract: A GSM1×-to-GSM handoff feature allows a GSM1× subscriber with a dual-mode (GSM1× and GSM modes) handset to seamlessly roam from GSM1× coverage areas to GSM coverage areas. This functionality is facilitated by the GSM1× system design which integrates a CDMA RAN with a standard GSM core network. The GSM1× system is built using standard CDMA as its air interface and an unmodified CDMA RAN with a standard IOS interface to the MSN. The only modifications are done at the MSN and the MS.

    Abstract translation: GSM1x到GSM切换功能允许具有双模（GSM1x和GSM模式）手机的GSM1x用户从GSM1x覆盖区域无缝漫游到GSM覆盖区域。 通过将CDMA RAN与标准GSM核心网络集成的GSM1x系统设计来促进这一功能。 GSM1x系统使用标准CDMA作为其空中接口和未经修改的CDMA RAN，具有与MSN的标准IOS接口。 唯一的修改是在MSN和MS上完成的。

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