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    • 27. 发明申请
    • RESOURCE ALLOCATION TO USERS IN SLOTTED CODE DIVISION MULTIPLE ACCESS SYSTEMS USING BEAMS
    • 资源分配使用代码段使用多个使用系统的多个访问系统
    • WO2003096710A2
    • 2003-11-20
    • PCT/US2003/015038
    • 2003-05-13
    • INTERDIGITAL TECHNOLOGY CORPORATION
    • ZEIRA, Eldad
    • H04Q
    • H04W72/082H04B7/0408H04B7/0617H04B7/086H04W16/28H04W24/10H04W52/42H04W72/02H04W72/0446
    • The invention includes several embodiments for slot assignment in code division multiple access communication systems. Some of the embodiments relate to fixed beams and others relate to adaptive arrays. One embodiment for fixed beams assigns slots by first detecting a beam having the best received quality and selected the best slot from that beam. Another fixed beam embodiment determines the best slot or slots in a number of beams and determines the overall best beam/slot combination. Another fixed beam embodiment uses a modified interference factor. One embodiment for the uplink using adaptive arrays using a spatial analysis stage followed by a transmission power level estimation stage. An overall interference level associated with each slot is determined and a slot having the best overall quality is determined. Another embodiment for the downlink uses the spatial analysis and slot assignment of the uplink for the downlink. Another embodiment for the downlink uses a spatial and transmission power level estimation stages. For adaptive arrays, the slot assignment can be determined whether the pathloss for each user is estimated or not and whether signals from each user are received or not.
    • 本发明包括用于码分多址通信系统中的时隙分配的几个实施例。 一些实施例涉及固定光束,而其它实施例涉及自适应阵列。 固定波束的一个实施例通过首先检测具有最佳接收质量的波束并从该波束中选择最佳时隙来分配时隙。 另一个固定波束实施例确定了多个波束中的最佳时隙或时隙,并确定了整体最佳波束/时隙组合。 另一固定波束实施例使用修改的干扰因子。 使用自适应阵列的上行链路的一个实施例使用空间分析阶段,接着是传输功率电平估计级。 确定与每个时隙相关联的整体干扰电平,并且确定具有最佳整体质量的时隙。 下行链路的另一实施例使用用于下行链路的上行链路的空间分析和时隙分配。 下行链路的另一实施例使用空间和发射功率电平估计级。 对于自适应阵列,可以确定时隙分配是否估计每个用户的路径损耗以及是否接收到来自每个用户的信号。
    • 29. 发明申请
    • TIME DIVISION DUPLEX METHOD FOR DETERMINING WHETHER TO INITIATE HANDOVER
    • 时间分割双重方法,用于确定是否启动切换
    • WO2003017544A1
    • 2003-02-27
    • PCT/US2002/025726
    • 2002-08-13
    • INTERDIGITAL TECHNOLOGY CORPORATION
    • ZEIRA, EldadZEIRA, ArielaTERRY, Stephen, E.
    • H04J3/00
    • H04W36/30
    • A time division duplex method for determining whether to initiate handover of a mobile unit from a serving base station to a target base station, the method comprises receiving the broadcast channel (52) from the serving base station (BCHser); calculating (54) the serving base station received signal code power (RSCPser); receiving the broadcast channel (56) from the target base station (BCHtar); calculating the target base station (58) received signal code power (RSCPtar); determining interference signal code power (60) for the serving base station (ISCPser); determining interference signal code power (60) for the target base station (ISCPtar); calculating (62) RSCPser/ISCPser; calculating (62) RSCPtar/ISCPtar; and determining whether RSCPser/ISCPser is less than RSCPtar/ISCPtar, and if so, commencing handover (68) from the serving base station to the target base station.
    • 一种用于确定是否发起移动单元从服务基站到目标基站的切换的时分双工方法,所述方法包括从服务基站(BCHser)接收广播信道(52); 计算(54)服务基站接收信号码功率(RSCPser); 从目标基站(BCHtar)接收广播频道(56); 计算目标基站(58)接收信号码功率(RSCPtar); 确定用于服务基站(ISCPser)的干扰信号码功率(60); 确定目标基站(ISCPtar)的干扰信号码功率(60); 计算(62)RSCPser / ISCPser; 计算(62)RSCPtar / ISCPtar; 以及确定RSCPser / ISCPser是否小于RSCPtar / ISCPtar,如果是,则从服务基站开始到目标基站的切换(68)。