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    • 4. 发明申请
    • METHOD AND DEVICE FOR MITIGATING INTERFERENCE
    • 用于缓解干扰的方法和设备
    • WO2015019179A2
    • 2015-02-12
    • PCT/IB2014002007
    • 2014-08-08
    • ALCATEL LUCENT
    • ZHONG CHONGXIANYANG TAO
    • H04W52/24
    • H04W52/242H04W52/283H04W52/32H04W52/383
    • Embodiments of the present invention provide a method of mitigating interference in user equipment at a transmitting end and corresponding user equipment. The method comprises: obtaining a maximum available transmit power; determining a first path loss power of at least one desired D2D link to user equipment at a receiving end, and determining a second path loss power of at least one interference link; determining an estimated transmit power according to the first path loss power and the second path loss power; and selecting a smaller power from the maximum available transmit power and the estimated transmit power, as a transmit power. By employing the method according to embodiments of the present invention, the transmit power of the user equipment at the transmitting end is controlled, which not only ensures communication quality of the desired D2D link but also effectively mitigates the interference caused by the transmitting end of the desired D2D link to the receiving ends of other links multiplexing the same resource blocks as it since interference of an interference link is considered, thereby improving the capability of interference mitigation in D2D communication.
    • 本发明的实施例提供了一种减轻发送端和对应的用户设备处的用户设备中的干扰的方法。 该方法包括:获得最大可用发射功率; 确定至接收端的用户设备的至少一个期望的D2D链路的第一路径损耗功率,并确定至少一个干扰链路的第二路径损耗功率; 根据所述第一路径损耗功率和所述第二路径损耗功率确定估计的发射功率; 以及从最大可用发射功率和估计发射功率中选择较小功率作为发射功率。 通过采用本发明实施例的方法,可以控制发射端的用户设备的发射功率,不仅保证了所需的D2D链路的通信质量,而且有效地缓解了发射端发射端造成的干扰 由于考虑了干扰链路的干扰,因此与其复用与其相同的资源块的其它链路的接收端的期望的D2D链路,因此提高了D2D通信中的干扰抑制能力。
    • 10. 发明申请
    • MITIGATING GHOST SIGNALLING EFFECTS IN RADIO SYSTEMS
    • 减轻无线电系统中的GHOST信号效应
    • WO2013185833A1
    • 2013-12-19
    • PCT/EP2012/061392
    • 2012-06-15
    • TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)ANKEL, Pär
    • ANKEL, Pär
    • H04W72/12
    • H04W72/1289H04W52/146H04W52/32H04W52/44H04W52/56
    • A method in a base station – and a base station, adapted for scheduling and receiving uplink transmissions from user entities, UEs, in a cell and further forwarding data related to such transmissions to a core network. The base station is being adapted for transmitting (506) an absolute grant signal on a control channel (E-AGCH) for a transmission time interval, for allowing a user entity to transmit an up-link transmission at a granted data rate on a corresponding transmission time interval (500). The method comprises the steps, for a transmission time interval on the control channel, of - if an absolute grant is scheduled (502), transmitting (506) the absolute grant; - if an absolute grant is not scheduled (502), investigating (504) whether at least one UE in the cell is configured for receiving on the control channel (E-AGCH), and if this is not the case, refraining (508) from transmitting (DTX); - if an absolute grant is not scheduled (502) and at least one UE in the cell is configured for receiving (504) on the control channel (E-AGCH). Moreover, the method comprises at least one of - the step of -transmitting (510) an absolute grant for a non-configured UE in the cell; and - the steps of -selecting (514) an arbitrary configured UE in the cell; and -transmitting (511) an absolute grant, which was previously transmitted at an earlier transmission time interval, to the selected UE.
    • 基站中的方法以及基站,适于调度和接收来自小区的用户实体,UE的上行链路传输,并进一步将与这种传输有关的数据转发到核心网络。 基站适于在传输时间间隔上在控制信道(E-AGCH)上发送(506)绝对授权信号,以允许用户实体以相应的授权数据速率发送上行链路传输 传输时间间隔(500)。 所述方法包括以下步骤:对于所述控制信道上的传输时间间隔,如果绝对授权被调度(502),则发送(506)所述绝对授权; - 如果没有安排绝对授权(502),调查(504)小区中的至少一个UE是否被配置为在控制信道(E-AGCH)上接收,并且如果不是这种情况,则拒绝(508) 从传输(DTX); - 如果没有安排绝对授权(502),并且小区中的至少一个UE被配置为在控制信道(E-AGCH)上接收(504)。 此外,该方法包括以下中的至少一个:在小区中发送(510)非配置的UE的绝对许可的步骤; 以及 - 在所述小区中选择(514)任意配置的UE的步骤; 并将先前以较早传输时间间隔发送的绝对授权(511)发送到所选择的UE。