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51.发明申请SYNCHRONIZATION SIGNAL DESIGN FOR WIRELESS DEVICES IN A LONG RANGE EXTENSION MODE 有权长距离扩展模式下无线设备的同步信号设计公开(公告)号：US20140198772A1
公开(公告)日：2014-07-17
申请号：US14156730
申请日：2014-01-16
IPC分类号： H04B1/7073 , H04W56/00
CPC分类号： H04B1/7073 , H04L5/0048 , H04L27/2655 , H04L27/2692 , H04W56/00 , H04W56/001 , H04W56/0015
摘要： Systems and methods related to a synchronization signal particularly well suited for wireless devices in an extended coverage area of a cell of a cellular communications network are disclosed. In one embodiment, a base station transmits a synchronization signal including multiple repetitions of a basic synchronization block during a coherence time of a downlink channel over which the synchronization signal is transmitted. The multiple repetitions of the basic synchronization block during the coherence time enable coherent combining during detection of the synchronization signal at wireless devices located in the cellular communications network. This coherent combining enables, for example, wireless devices located in an extended coverage area of a cell served by the base station to synchronize to the cell using a shorter synchronization signal than that which would be required if only non-coherent combining were used.
摘要翻译： 公开了与特别适用于蜂窝通信网络的小区的扩展覆盖区域中的无线设备的同步信号相关的系统和方法。 在一个实施例中，基站在发送同步信号的下行链路信道的相干时间期间发送包括基本同步块的多个重复的同步信号。 在相干时间期间基本同步块的多重重复使得能够在位于蜂窝通信网络中的无线设备的同步信号检测期间进行相干组合。 该相干组合使得例如位于由基站服务的小区的扩展覆盖区域中的无线设备使用比仅使用非相干组合所需的更短的同步信号与小区同步。
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公开(公告)号：US20140087747A1
公开(公告)日：2014-03-27
申请号：US14115672
申请日：2011-05-10
IPC分类号： H04W72/08
CPC分类号： H04W72/082 , H04W72/085
摘要： A method and apparatus in a base station serving a first cell in a cellular network, for supporting radio resource management, RRM, in the cellular network. The base station obtains measurements (M) of signals transmitted in the first cell and of signals transmitted in at least one neighbouring cell and determines a cell isolation factor of the first cell, based on the obtained measurements, the cell isolation factor indicating insusceptibility to interference from signals transmitted in the neighbouring cell(s). The determined cell isolation factor is then used to support RRM for terminals in the network, e.g. as a basis for determining whether to employ an RRM scheme or not. Thereby, it is possible to decide to employ the RRM scheme for cells where it is effective and helpful and not in other cells.
摘要翻译： 一种服务于蜂窝网络中的第一小区的基站中的方法和装置，用于在蜂窝网络中支持无线电资源管理RRM。 基站获得在第一小区中发送的信号和在至少一个相邻小区中发送的信号的测量（M），并且基于获得的测量结果确定第一小区的小区隔离因子，指示对干扰不敏感的小区隔离因子 来自在相邻小区中发送的信号。 然后将确定的细胞隔离因子用于支持网络中终端的RRM，例如， 作为确定是否采用RRM方案的基础。 因此，可以决定对其有效和有帮助而不在其他小区中的小区采用RRM方案。
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公开(公告)号：US20140045500A1
公开(公告)日：2014-02-13
申请号：US14064922
申请日：2013-10-28
发明人： Konstantinos Dimou , Yu Yang
IPC分类号： H04W36/00
CPC分类号： H04W36/0083 , H04W36/14 , H04W36/30
摘要： The dynamic determination of a handover trigger for triggering handover of a mobile terminal in a wireless network from a source base station to a target base station is based on one or more Key Performance Indicators (KPIs). Each KPI indicates a quality of wireless services provided by the wireless network responsive to a particular handover trigger. If an obtained parameter that indirectly or directly impacts handover performance passes a corresponding performance test, the mobile terminal selects the handover trigger based on the KPIs. If the parameter fails the corresponding performance test, the source base station selects the handover trigger based on the KPIs.
摘要翻译： 用于触发无线网络中的移动终端从源基站到目标基站的切换的切换触发的动态确定基于一个或多个关键性能指标（KPI）。 每个KPI指示无线网络响应于特定切换触发提供的无线服务的质量。 如果获得的间接或直接影响切换性能的参数通过相应的性能测试，则移动终端基于KPI来选择切换触发。 如果参数失败相应的性能测试，则源基站根据KPI选择切换触发。
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公开(公告)号：US10681605B2
公开(公告)日：2020-06-09
申请号：US13866070
申请日：2013-04-19
发明人： Konstantinos Dimou , Walter Müller
摘要： Systems and methods are disclosed for providing optimized handover decisions for mobile devices participating in streaming services. In one embodiment, a serving base station in a cellular communications network obtains a play out buffer size for a streaming service of a mobile device. The serving base station then makes a handover decision based on the play out buffer size for the streaming service of the mobile device. In one embodiment, the streaming service is a downlink streaming service to the mobile device, and the play out buffer size is a size of a downlink play out buffer at the serving base station for the downlink streaming service to the mobile device. In another embodiment, the streaming service is an uplink streaming service from the mobile device, and the play out buffer size is a size of an uplink play out buffer at the mobile device for the uplink streaming service.
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公开(公告)号：US10097990B2
公开(公告)日：2018-10-09
申请号：US14390649
申请日：2013-11-13
摘要： Systems and methods are disclosed for triggering a long range extension mode of operation for a wireless device in a cellular communications network. In one preferred embodiment, the wireless device is a Machine Type Communication (MTC) device. In one embodiment, a node in the cellular communications network determines that the wireless device is to operate in the long range extension mode if there is difficulty in establishing communication between the wireless device and the cellular communications network. If the wireless device is to operate in the long range extension mode, the node activates one or more long range extension mechanisms with respect to the wireless device such that the wireless device operates in the long range extension mode. In this manner, the long range extension mode is selectively triggered for the wireless device.
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公开(公告)号：US09936523B2
公开(公告)日：2018-04-03
申请号：US14115716
申请日：2013-02-27
发明人： Robert Baldemair , Kumar Balachandran , Johan Bergman , Konstantinos Dimou , Erik Eriksson , Pål Frenger
IPC分类号： H04W74/08
CPC分类号： H04W74/0833
摘要： The present disclosure concerns radio communication. More particularly, the present disclosure concerns random access procedures used in communication between user equipments (UEs) and radio network nodes, such as evolved NodeB's. According to one exemplary embodiment disclosed herein, a method in a UE 10 comprises transmitting 110, 130 two or more Physical Random Access Channel, PRACH, signals, where the two or more PRACH signals have different frequency bandwidths. Hereby it is made possible to improve the resource utilization during the random access procedure.
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公开(公告)号：US09794959B2
公开(公告)日：2017-10-17
申请号：US14760813
申请日：2013-01-17
IPC分类号： H04W74/00 , H04W74/08 , H04B17/309 , H04W84/04
CPC分类号： H04W74/006 , H04B17/309 , H04W74/0833 , H04W84/042
摘要： The disclosure relates to connection setup between a wireless device and a mobile communication network using random access, and more specifically to dynamic random access resource configuration and selection. The disclosure provides for a method in a wireless device, of selecting random access resources for performing a random access procedure to a wireless network. The method comprises the step receiving information from a radio network node comprised in a cell of the wireless network, wherein the received information indicates at least a first and a second random access resource having different resource sizes. The method further comprises selecting one of said at least first and a second random access resources based on an expected uplink power received by the radio network node and transmitting a random access message to said wireless network using the selected resource. The disclosure further relates to methods for providing random access resources, as well as to a wireless device, and to radio network nodes of a wireless network.
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公开(公告)号：US09699692B2
公开(公告)日：2017-07-04
申请号：US14786125
申请日：2013-04-22
发明人： Nadia Brahmi , Konstantinos Dimou , Joachim Sachs
CPC分类号： H04W36/0011 , H04W4/70 , H04W36/0072 , H04W72/04 , H04W72/0453 , H04W76/23
摘要： A node of a cellular network detects entry of a vehicle-to-vehicle communication device into a cell of the cellular network. The node allocates resources to the vehicle-to-vehicle communication device, and sends channel information to the vehicle-to-vehicle communication device. The channel information can be included in a handover command to the vehicle-to-vehicle communication device. The channel information indicates the allocated resources. The vehicle-to-vehicle communication device uses the allocated resources for sending of vehicle-to-vehicle communication messages.
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公开(公告)号：US09693293B2
公开(公告)日：2017-06-27
申请号：US14165948
申请日：2014-01-28
发明人： Yu Yang , Konstantinos Dimou
CPC分类号： H04W48/20
摘要： Systems and methods are disclosed for providing efficient and reliable communication for wireless devices, e.g., Machine Type Communication devices, in a cellular communications network. In one embodiment, a network node of the cellular communications network identifies candidate device-anchor base stations, where the candidate device-anchor base stations are wireless devices that satisfy one or more predefined criteria for serving as a candidate device-anchor base station. The network node then effects selection of a device-anchor base station for a wireless device from the candidate device-anchor base stations such that communication between a serving base station of the wireless device and the wireless device is via the device-anchor base station. In this manner, communication between the wireless device and the serving base station of the wireless device is assisted by the device-anchor base station.
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公开(公告)号：US09668162B2
公开(公告)日：2017-05-30
申请号：US13980986
申请日：2013-06-20
CPC分类号： H04W28/0215 , H04W4/06 , H04W4/70 , H04W48/06 , H04W48/08 , H04W48/12 , H04W56/0025
摘要： Network node and UE, and methods therein for signaling system information, SI, to UEs. The method in the network node comprises transmitting SI to one or more UEs, where the SI comprises multiple alternative sets, where each set assigns different values to one or multiple radio system parameters. The method further comprises determining which set, out of the multiple alternative sets, that should currently be applied for a UE, and transmitting an SI selection signal to the UE, the SI selection signal indicating the determined set,thus enabling the UE to apply currently appropriate radio system parameters also in unfavorable radio conditions. The UE may be an MTC device (Machine Type Communication).
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