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    • 24. 发明申请
    • IMPROVED MOBILITY MANAGEMENT IN A COORDINATED MULTIPOINT NETWORK
    • 改进的协调多点网络中的移动性管理
    • WO2011002374A1
    • 2011-01-06
    • PCT/SE2009/051505
    • 2009-12-28
    • TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)GERSTENBERGER, DirkLARSSON, DanielMÜLLER, Walter
    • GERSTENBERGER, DirkLARSSON, DanielMÜLLER, Walter
    • H04W36/30
    • H04W36/0083H04W36/0055H04W36/08
    • In one aspect, the present invention in one or more embodiments improves mobility management—e.g., handover processing enhancement—by providing/utilizing additional information in combination with CoMP operation, for enhancing the handover procedure. For example, the additional information is used to improve judging the most suitable target cell (14). The additional information can be, for example, angle of arrival or time advance of the UE (20) in handover, RTT, power headroom or signal strength. In at least one embodiment, the information used for handover processing at source and/or target base stations (12-1, 12-2) is enhanced or otherwise made richer by the use of "geometric information" for mobile terminals (20). In one such embodiment, the geometric information used for handover processing associated with a given terminal (20) indicates something about the mobile terminal's position (relative or absolute).
    • 在一个方面,本发明在一个或多个实施例中通过提供/利用与CoMP操作相结合的附加信息来改善移动性管理 - 例如切换处理增强,以增强切换过程。 例如,附加信息用于改善判断最合适的目标单元(14)。 附加信息可以是例如UE(20)在切换,RTT,功率余量或信号强度中的到达角度或时间提前。 在至少一个实施例中,用于在源和/或目标基站(12-1,12-2)处的切换处理的信息通过对移动终端(20)的使用“几何信息”被增强或以其他方式变得更加丰富。 在一个这样的实施例中,用于与给定终端(20)相关联的切换处理的几何信息指示关于移动终端的位置(相对或绝对)的一些内容。
    • 25. 发明申请
    • TRANSMISSION BEHAVIOUR FOR SUPPORT OF CELL MEASUREMENTS
    • 用于支持细胞测量的传输行为
    • WO2009058091A2
    • 2009-05-07
    • PCT/SE2008/051243
    • 2008-10-31
    • TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)MÜLLER, Walter
    • MÜLLER, Walter
    • H04W52/14H04W52/34
    • H04W52/40H04J11/0069H04W52/241H04W52/343
    • The present invention relates to a cellular communication and addresses the problem of an LTE UE measuring downlink quality when the load in cell varies instantaneously and over a wide frequency spectrum. The UE lacks capacity to measure over frequency bandwidth and time needed to make a cell load measure with sufficient reliability for making a inter-cell handover or an inter RAT handover. The solution is the DL power transmitted in a narrow band of the carrier frequency is adjusted to reflect the total cell load. The total cell load is measured and averaged over time and made proportional to the frequency carrier bandwidth. The power may be controlled for specific time slots in the narrow frequency band for the terminal to measure on. This is advantageous because then the waste power needed for enabling the UE measured can be reduced and the extra interference caused by the invention be reduced.
    • 蜂窝通信技术领域本发明涉及一种蜂窝通信,解决了当UE的负载在瞬间和宽频谱上变化时LTE UE测量下行链路质量的问题。 UE缺乏测量频率带宽和进行小区负载测量所需的时间的能力,具有用于进行小区间切换或RAT间切换的足够的可靠性。 解决方案是在载波频率的窄带中传输的DL功率被调整以反映总的小区负载。 测量总电池负载并对其进行平均,并与频率载波带宽成比例。 可以在窄频带中的特定时隙控制功率,以使终端进行测量。 这是有利的,因为因此可以减少测量的UE所需的浪费能量,并减少本发明造成的额外的干扰。