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    INTER-LAYER INTERFERENCE HANDLING IN HETEROGENEOUS NETWORKS
    62.
    发明授权
    INTER-LAYER INTERFERENCE HANDLING IN HETEROGENEOUS NETWORKS 有权

    公开(公告)号：EP2856811B1

    公开(公告)日：2018-09-05

    申请号：EP12750341.5

    申请日：2012-07-30

    申请人： Telefonaktiebolaget LM Ericsson (publ)

    发明人： DAHLMAN, Erik ,  ASTELY, David ,  SORRENTINO, Stefano ,  LINDOFF, Bengt ,  WILHELMSSON, Leif ,  HAMMARWALL, David ,  PARKVALL, Stefan

    IPC分类号： H04W52/24

    CPC分类号： H04W52/244 ,  H04W48/08 ,  H04W52/36 ,  H04W84/045

    摘要： In a heterogeneous network cell deployment a mobile terminal may need to receive control data transmissions from a macro node at the same time as a pico node is transmitting user data for the mobile terminal, using the same frequency or set of frequencies. This can result in a problematic interference situation. According to several embodiments of the present invention, at least one of two general approaches is used to mitigate the interference situation described above. In a first approach, the pico node's transmission power is reduced in some time intervals, thereby reducing the interference to a level where reception from the macro node is possible. In a second approach, which may be combined with the first approach in some cases, relevant data (e.g. control information) transmitted from the macro node is provided by the pico node, either alone or in combination with the macro node (i.e. simultaneously to the macro node during the same protected transmission time intervals).

    PREFIXING OF OFDM SYMBOLS TO SUPPORT VARIABLE SUBFRAME LENGTH
    63.
    发明公开
    PREFIXING OF OFDM SYMBOLS TO SUPPORT VARIABLE SUBFRAME LENGTH 有权
    预编码OFDM符号支持可变子帧长度

    公开(公告)号：EP3284204A1

    公开(公告)日：2018-02-21

    申请号：EP17726719.2

    申请日：2017-05-12

    申请人： Telefonaktiebolaget LM Ericsson (PUBL)

    发明人： PARKVALL, Stefan ,  DAHLMAN, Erik ,  GRÖVLEN, Asbjörn

    IPC分类号： H04L5/00 ,  H04L27/26

    CPC分类号： H04L27/2602 ,  H04L5/003 ,  H04L27/2607

    摘要： The present disclosure relates to a first radio node (300) configured for orthogonal frequency division multiplexing (OFDM), comprising a receiver (310), a transmitter (320), a processor (330) and a memory (340) storing instructions executable by the processor (330) for causing the transmitter (320) in a first mode of operation with a first subcarrier spacing f1: to transmit a sequence of prefixed OFDM symbols, and in a second mode of operation with a second subcarrier spacing f2: to transmit a sequence of prefixed OFDM symbols, wherein the sequence of transmitted OFDM symbols is aligned with a predefined repeating radio frame, which is common to both the first and second modes of operation, or with an integer multiple of the predefined repeating radio frame; and the first and second subcarrier spacings are related by an integer factor, f1/f2=p or f1/f2=1/p, with p≠1 integer.

    BASE STATION AND METHOD FOR DETERMINING A SPECTRUM ALLOCATION IN A WIRELESS NETWORK
    64.
    发明授权
    BASE STATION AND METHOD FOR DETERMINING A SPECTRUM ALLOCATION IN A WIRELESS NETWORK 有权
    确定无线网络中频谱分配的基站和方法

    公开(公告)号：EP2820901B1

    公开(公告)日：2017-12-27

    申请号：EP12715461.5

    申请日：2012-03-02

    申请人： Telefonaktiebolaget LM Ericsson (publ)

    发明人： FURUSKÄR, Anders ,  DAHLMAN, Erik ,  FRODIGH, Carl Magnus ,  JOHANSSON, Niklas ,  PARKVALL, Stefan

    IPC分类号： H04W72/04 ,  H04W16/14

    CPC分类号： H04W16/14

    摘要： A method in a first base station for determining a spectrum allocation to be used by the first base station in a wireless network is provided. The wireless network is dedicated a spectrum S. The first base station is associated with a first operator. The first base station detects (403) a number N of second signals. Each second signal is transmitted by a respective second base station to announce its intended use of said spectrum at a time t. Each second base station is associated with a respective second operator or the first operator. The first base station then determines (404) the spectrum allocation to be used by the first base station at the time t as a subset of the spectrum S. The subset of the spectrum S is a function of N.

    UPLINK SCRAMBLING DURING RANDOM ACCESS
    68.
    发明公开
    UPLINK SCRAMBLING DURING RANDOM ACCESS 有权
    UPLINK-SCRAMBLINGWÄHRENDEINES DIREKTZUGRIFFS

    公开(公告)号：EP2991432A1

    公开(公告)日：2016-03-02

    申请号：EP15190585.8

    申请日：2008-07-03

    申请人： Telefonaktiebolaget LM Ericsson (publ)

    发明人： PARKVALL, Stefan ,  TYNDERFELDT, Tobias ,  DAHLMAN, Erik

    IPC分类号： H04W74/08 ,  H04W88/00 ,  H04W76/02

    CPC分类号： H04W72/0413 ,  H04W72/02 ,  H04W74/004 ,  H04W74/0833

    摘要： The technology described in this case facilitates random access by a user terminal with a radio base station. A user terminal determines one of a first type of uplink scrambling sequences and generates a random access message using the determined one of the first type of uplink scrambling sequences. The random access message is transmitted to the base station. The user terminal receives from the base station a second, different type of uplink scrambling sequence and uses it for subsequent communication with the radio base station. For example, the first uplink scrambling sequences may be specifically associated with the radio base station's cell area or a random access radio channel associated with the radio base station, but they are not specifically assigned to any user terminal, and the second uplink scrambling sequence may be selected from a second set of uplink scrambling sequences specifically assignable to individual user terminals.

    摘要翻译： 在这种情况下描述的技术有助于用无线电基站的用户终端的随机接入。 用户终端确定第一类型的上行链路扰频序列中的一个，并使用所确定的第一类型的上行链路扰频序列来生成随机接入消息。 随机接入消息被发送到基站。 用户终端从基站接收第二种不同类型的上行加扰序列，并将其用于与无线基站的后续通信。 例如，第一上行链路扰频序列可以与无线基站的小区区域或与无线基站相关联的随机接入无线信道具体地关联，但是并不特别地分配给任何用户终端，第二上行链路加扰序列可以 从专用于各个用户终端的第二组上行链路扰频序列中选择。

    INTER-LAYER INTERFERENCE HANDLING IN HETEROGENEOUS NETWORKS
    69.
    发明公开
    INTER-LAYER INTERFERENCE HANDLING IN HETEROGENEOUS NETWORKS 审中-公开
    异佛尔酮维生素HANDHABUNG VON ZWISCHENSCHICHTINTERFENENZEN

    公开(公告)号：EP2856811A1

    公开(公告)日：2015-04-08

    申请号：EP12750341.5

    申请日：2012-07-30

    申请人： Telefonaktiebolaget LM Ericsson (PUBL)

    发明人： DAHLMAN, Erik ,  ASTELY, David ,  SORRENTINO, Stefano ,  LINDOFF, Bengt ,  WILHELMSSON, Leif ,  HAMMARWALL, David ,  PARKVALL, Stefan

    IPC分类号： H04W52/24

    CPC分类号： H04W52/244 ,  H04W48/08 ,  H04W52/36 ,  H04W84/045

    摘要： In a heterogeneous network cell deployment a mobile terminal may need to receive control data transmissions from a macro node at the same time as a pico node is transmitting user data for the mobile terminal, using the same frequency or set of frequencies. This can result in a problematic interference situation. According to several embodiments of the present invention, at least one of two general approaches is used to mitigate the interference situation described above. In a first approach, the pico node's transmission power is reduced in some time intervals, thereby reducing the interference to a level where reception from the macro node is possible. In a second approach, which may be combined with the first approach in some cases, relevant data (e.g. control information) transmitted from the macro node is provided by the pico node, either alone or in combination with the macro node (i.e. simultaneously to the macro node during the same protected transmission time intervals).

    摘要翻译： 在异构网络小区部署中，移动终端可能需要在微微节点正在使用相同的频率或频率集合为移动终端发送用户数据的同时从宏节点接收控制数据传输。 这可能导致有问题的干扰情况。 根据本发明的几个实施例，使用两种一般方法中的至少一种来减轻上述干扰情况。 在第一种方法中，微微节点的传输功率在一些时间间隔内减少，从而将干扰降低到可能从宏节点接收的水平。 在一些可能与第一种方法组合的第二种方法中，从宏节点发送的相关数据（例如，控制信息）由微微节点提供，单独或与宏节点组合（即同时到 宏节点在相同的受保护传输时间间隔期间）。

    A RADIO NETWORK CONTROLLER, A SERVING BASE STATION, A USER EQUIPMENT AND METHODS THEREIN
    70.
    发明公开
    A RADIO NETWORK CONTROLLER, A SERVING BASE STATION, A USER EQUIPMENT AND METHODS THEREIN 审中-公开
    FUNKNETZSTEUERUNG，VERSORGUNGSBASISSTATION，BENUTZERVORRICHTUNG UND VERFAHREN DARIN

    公开(公告)号：EP2823678A2

    公开(公告)日：2015-01-14

    申请号：EP12870638.9

    申请日：2012-12-17

    申请人： Telefonaktiebolaget LM Ericsson (PUBL)

    发明人： GRANT, Stephen ,  RAMOS, Edgar ,  HÖGLUND, Andreas ,  DAHLMAN, Erik ,  PARKVALL, Stefan ,  WANG, Yi-Pin Eric

    IPC分类号： H04W52/04 ,  H04W52/40

    CPC分类号： H04W52/265 ,  H04W52/146 ,  H04W52/16 ,  H04W52/242 ,  H04W52/325 ,  H04W52/386 ,  H04W52/40

    摘要： A radio network controller, RNC, 614, and a method therein, for enhancing reception quality of transmissions on an uplink control channel from a user equipment, UE, 613 to a serving base station, BS, 610. The RNC, the UE and the serving BS are comprised in a communication system 600. The method comprises, when conditions for boosting the uplink control channel are fulfilled, determining a boosting factor based on a ratio of path gains of a channel from the UE to the serving BS and of a channel from the UE to a non- serving BS 611, respectively, which non-serving BS is comprised in the communications system. The method further comprises transmitting the determined boosting factor to the UE, whereby the reception quality of transmission on the uplink control channel from the UE to the serving BS is enhanced by the UE boosting the control channel by means of the boosting factor.

    摘要翻译： 一种无线电网络控制器，RNC 614及其方法，用于增强从用户设备UE 613向服务基站BS 610发送的上行链路控制信道上的传输质量。RNC，UE和 服务BS包括在通信系统600中。该方法包括当满足用于升高上行链路控制信道的条件时，基于从UE到服务BS的信道的路径增益的比率和信道的确定提升因子 分别从UE到非服务BS 611，其中非服务BS包括在通信系统中。 该方法还包括将确定的升压因子发送给UE，由此UE通过升压因子来增强控制信道的上行链路控制信道上的从UE到服务BS的发送接收质量。