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公开(公告)号：EP3459233A1
公开(公告)日：2019-03-27
申请号：EP16729087.3
申请日：2016-05-18
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公开(公告)号：EP2949140B1
公开(公告)日：2017-04-19
申请号：EP13705271.8
申请日：2013-01-23
IPC分类号： H04W16/14
CPC分类号： H04B17/309 , H04B15/00 , H04W16/14 , H04W24/02 , H04W84/042 , H04W88/08
摘要： A method and network node of a first cellular network, for enabling mitigation of interference in the first cellular network caused by radio communication in a second cellular network. The network node obtains a total interference in a first cell of the first cellular network, and estimates a first interference contribution in the first cell caused by radio communication in the first cellular network. The network node then determines a second interference contribution in the first cell caused by radio communication in the second cellular network based on the estimated first interference contribution and the obtained total interference. The network node also utilizes the determined second interference contribution to counteract the interference in the first cell caused by the radio communication in the second cellular network. Thereby, it is possible to counteract the interference in the first cell when the second interference contribution fulfills a threshold condition such that actions and measures for counteracting the inter-system interference can be initiated only when needed or when it is deemed effective for improving performance in the cell.
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公开(公告)号：EP1027813B1
公开(公告)日：2006-07-19
申请号：EP98946767.5
申请日：1998-09-29
发明人： KRONESTEDT, Fredric
IPC分类号： H04Q7/36
摘要： In a cellular telecommunications network, uplink interference, as measured by a base station in a target cell, and co-channel interference, as measured by mobile units in a co-channel cell are reduced by increasing the base station antenna tilt angle. However, increasing the base station antenna tilt angle reduces the effective coverage area of the target cell. To obtain an optimum base station antenna tilt angle, interference reduction and target cell coverage area reduction are quantified for each of a number of candidate base station antenna tilt angles. An interference reduction-to-target cell coverage area reduction ratio can then be established for each of the candidate base station antenna tilt angles. The optimum base station antenna tilt angle can then be identified as the one candidate base station antenna tilt angle that reflects the maximum interference reduction-to-target cell coverage area reduction ratio.
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4.发明授权
公开(公告)号：EP1078543B1
公开(公告)日：2005-07-27
申请号：EP99928285.8
申请日：1999-05-07
IPC分类号： H04Q7/36
CPC分类号： H04W16/00 , H04J13/004 , H04J13/18 , H04W16/24
摘要： Multiple code sets are introduced in the downlink of a CDMA system to allow for more connections in each cell. The codes are then allocated to different users taking into account the interference therebetween. The interference depends on the antenna gains, transmission powers used and cross-correlations between codes. By estimating these parameters the interference can be minimized in the code allocation process. Since the allocation of codes and code sets to geographical areas within a cell may change over time, code handoff is supported.
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公开(公告)号：EP2186360B1
公开(公告)日：2019-04-17
申请号：EP07794213.4
申请日：2007-09-03
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6.发明公开
公开(公告)号：EP3412062A1
公开(公告)日：2018-12-12
申请号：EP16706013.6
申请日：2016-02-04
摘要： A low power network node (LPN) and a method performed thereby for providing a primary serving cell to a wireless device associated with the low power network node. The wireless communication network also comprises a neighboring network node, wherein the low power network node and the neighboring network node are configured with a first set of frequency bands B′ and the low power network node is configured with a second set of frequency bands B″. Since the neighboring network node does not use the second set of frequency bands B″, the neighboring network node may not cause interference on carriers of the second set of frequency bands B″.
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公开(公告)号：EP3412058A1
公开(公告)日：2018-12-12
申请号：EP16706014.4
申请日：2016-02-04
摘要： There is provided mechanisms for assigning control plane connectivity for a wireless device in a dual connectivity supported communications network. The communications network comprises a first network node supporting a group of low frequency bands and a second network node supporting a group of high frequency bands. A method is performed by a control node. The method comprises acquiring an uplink load level for the group of low frequency bands. The method comprises acquiring a first pathloss level between the wireless device and the first network node and a second pathloss level between the wireless device and the second network node. The method comprises selecting, from the acquired uplink load level, the first pathloss level, and the second pathloss level, which one of the first network node and the second network node to provide control plane connectivity for the wireless device.
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公开(公告)号：EP2708059B1
公开(公告)日：2016-07-27
申请号：EP11865093.6
申请日：2011-05-10
IPC分类号： H04W72/08
CPC分类号： H04W72/082 , H04W72/085
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9.发明公开DEFINING CELL COORDINATION GROUP TO WHICH INTERFERENCE MANAGEMENT TECHNIQUES SUCH AS COMP CAN BE APPLIED 审中-公开定义细胞协调组，以便可以应用干扰管理技术
公开(公告)号：EP3183906A1
公开(公告)日：2017-06-28
申请号：EP14792865.9
申请日：2014-08-21
CPC分类号： H04J11/0053 , H04B7/024 , H04B17/345 , H04W16/32 , H04W36/0083 , H04W48/08 , H04W84/042
摘要： The application relates to the selection of cells to form a cell coordination group for which interference management techniques such as COMP are to be applied. The cells to be selected to improve the performance of a UE in terms of throughput or delay are not necessarily the ones which are geographically the closest because in city environments shadowing effects of buildings exist. Thus, choosing the closest cells for coordinated interference management will not be a good solution in many cases. Hence, there is a need to develop another method and mechanism for more accurately generating a cell coordination group for interference management activities. This problem is solved by the application in that either the downlink interference toward the UE from the neighboring cells is estimated or the neighbor cells listen for the UE and then predict the downlink interference. Furthermore, the algorithm starts with an initial list of cells comprising the most likely handover candidates. Furthermore, cells are eliminated if the interconnection link to the serving base station is not fast enough for the interference reducing algorithms.
摘要翻译： 本申请涉及选择小区以形成要应用诸如COMP之类的干扰管理技术的小区协调组。 要在吞吐量或延迟方面选择用于改善UE的性能的小区不一定是在地理上最接近的小区，因为在城市环境中存在建筑物的遮蔽效应。 因此，选择最近的小区进行协调干扰管理在许多情况下都不是一个好的解决方案。 因此，需要开发另一种更准确地生成用于干扰管理活动的小区协调组的方法和机制。 该问题通过以下应用来解决：估计来自相邻小区的对UE的下行链路干扰，或者相邻小区监听UE，然后预测下行链路干扰。 此外，该算法从包含最可能的切换候选者的小区的初始列表开始。 此外，如果到服务基站的互连链路对于干扰减少算法来说不够快，则消除小区。
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公开(公告)号：EP3085142A1
公开(公告)日：2016-10-26
申请号：EP13826655.6
申请日：2013-12-17
摘要： It is disclosed a method and a network node (502, 70, 90) for selecting a candidate cell (14, 44, 06) to be combined with a target cell (12, 42, 502) having a radio equipment (76) connected to a radio equipment controller (74). The method comprises identifying (612, 82) at least two candidate cells where a time delay in communication between any two of: said at least two candidate cells and the target cell, is below a pre-determined time threshold, selecting (614, 84) the one (44) having the highest connection activity with the target cell; and combining (616, 86) the selected candidate cell (14, 44) and said target cell (12, 42) into a logical cell. Embodiments of the present invention have the advantage that the logical cells being defined provides have a high overall mobile network connectivity improvement.
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