Method for performing network assisted interference cancellation and suppression in situation in which carrier aggregation is set, and user equipment

    公开(公告)号:US10187168B2

    公开(公告)日:2019-01-22

    申请号:US15520402

    申请日:2015-10-28

    Abstract: Provided is a method for performing network assisted interference cancellation and suppression (NAICS) in user equipment (UE) in which a carrier aggregation (CA) is set. The method can comprise the steps of: receiving a UE capability request message; and transmitting UE capability information by responding to the UE capability request message. The UE capability information can include information related to an NAICS operation in a situation in which a CA is set. The method can comprise a step of receiving interference cancellation support information from a base station. The interference cancellation support information can include information on neighboring cells identified by respectively operating in one or more carriers which are selected by the base station on the basis of the transmitted UE capability information. The method can comprise a step of cancelling the interference received from the neighboring cells, on the basis of the information on the neighboring cells within the interference cancellation support information.

    Method of transmitting SLSS by V2V terminal

    公开(公告)号:US10172107B2

    公开(公告)日:2019-01-01

    申请号:US15467347

    申请日:2017-03-23

    Abstract: The disclosure of the present invention proposes a method for transmitting a sidelink synchronization signal (SLSS). The method may be performed by a vehicle-to-vehicle (V2V) terminal and comprise: performing measurements during a predetermined evaluation time; determining whether values resulting from performing the measurements are below a threshold value; and if the values resulting from performing the measurements during the predetermined evaluation time are below the threshold value, transmitting the SLSS to a neighboring V2V terminal. If the V2V terminal is in radio resource control (RRC) idle state and if the V2V terminal is configured to use 1.28 s or 2.56 s of a discontinuous reception (DRX) cycle length, the V2V terminal may calculate the predetermined evaluation time by using the number of DRX cycles which is not greater than 3.

    Interference cancellation reception method

    公开(公告)号:US10064087B2

    公开(公告)日:2018-08-28

    申请号:US15502774

    申请日:2015-07-29

    Abstract: One disclosure of the present specification provides an interference cancellation reception method. The interference cancellation reception method can comprise the steps of: cancelling an interference caused by a cell-specific reference signal (CRS) from a neighboring cell which is mixed within a signal received from a serving cell; blind-detecting a parameter related to a demodulation reference signal (DMRS) so as to discover whether the signal from the neighboring cell mixed within the received signal is a data channel modulated on the basis of the DMRS; cancelling an interference between the detected DMRS signal and a DMRS signal of the serving cell when the DMRS is detected on the basis of the DMRS-related parameter; blind-detecting a modulation order for the data channel from the neighboring cell; and receiving only the signal from the serving cell through the interference cancellation by the data channel from the neighboring cell on the basis of the modulation order.

    Receiving method for interference cancellation, and terminal
    97.
    发明授权
    Receiving method for interference cancellation, and terminal 有权
    干扰消除接收方法及终端

    公开(公告)号:US09509482B2

    公开(公告)日:2016-11-29

    申请号:US14419202

    申请日:2013-08-12

    Abstract: One embodiment of the present specification discloses a receiving method. The receiving method comprises the steps of: cancelling interference caused by a cell-specific reference signal (CRS) of a neighboring cell from a bit string received from a serving cell; determining weight to be applied to the bit string; applying the determined weight to the bit string; and decoding the bit string to which the weight is applied. In the step of determining the weight, it is possible to determine the weight to be applied depending on whether or not CRSs collide with each other between the serving cell and the neighboring cell that causes the interference.

    Abstract translation: 本说明书的一个实施例公开了一种接收方法。 接收方法包括以下步骤:从从服务小区接收的比特串中消除由相邻小区的小区特定参考信号(CRS)引起的干扰; 确定要施加到所述位串的权重; 将确定的权重应用于位串; 并解码应用了权重的比特串。 在确定权重的步骤中,可以根据CRS在服务小区和造成干扰的相邻小区之间是否相互冲突来确定要应用的权重。

    Method of handing over UE to small-scale cell in macro cell and environment in which small-scale cell coexists
    98.
    发明授权
    Method of handing over UE to small-scale cell in macro cell and environment in which small-scale cell coexists 有权
    在小规模小区共存的宏小区和环境中将UE切换到小规模小区的方法

    公开(公告)号:US09374743B2

    公开(公告)日:2016-06-21

    申请号:US14415521

    申请日:2013-07-11

    CPC classification number: H04W36/0061 H04W8/005 H04W24/08 H04W36/04 H04W36/06

    Abstract: The present invention relates to a method of providing, by a UE served in a small-scale cell, information about surrounding UEs in a wireless communication system in which a macro cell and the small-scale cell coexist. The method can include the steps of: carrying out a handover from the macro cell to the small-scale cell; after completion of the handover, overhearing a signal transmitted by the UE; measuring signal intensities of the surrounding UEs; and, if the signal intensities meet predefined conditions, delivering information about the surrounding UEs to the small-scale cell.

    Abstract translation: 本发明涉及一种在小规模小区中服务的UE提供关于在宏小区和小规模小区共存的无线通信系统中的周围UE的信息的方法。 该方法可以包括以下步骤:执行从宏小区到小规模小区的切换; 在完成切换之后,窃听由UE发送的信号; 测量周围UE的信号强度; 并且如果信号强度满足预定条件,则将关于周围UE的信息传送到小规模小区。

    Method for performing measurement and terminal
    99.
    发明授权
    Method for performing measurement and terminal 有权
    执行测量和终端的方法

    公开(公告)号:US09369899B2

    公开(公告)日:2016-06-14

    申请号:US14417025

    申请日:2014-05-12

    Abstract: One disclosure of the present specification provides a method for performing a measurement. The method may comprise: receiving, from a serving cell, a first measurement subframe pattern for the serving cell and assistance information on a cell-specific reference signal (CRS) of a first neighboring cell and a second neighboring cell; and receiving, from the serving cell, a second measurement subframe pattern for the first and second neighboring cells. Here, both the serving cell and the first neighboring cell are aggressor cells against a victim cell which is the second neighboring cell, and the received second measurement subframe pattern may be set based on an almost blank subframe (ABS) pattern, when a CRS of the serving cell collides with the CRS of the second neighboring cell but the CRS of the first neighboring cell does not collide with the CRS of the second neighboring cell.

    Abstract translation: 本说明书的一个公开内容提供了一种用于执行测量的方法。 该方法可以包括:从服务小区接收服务小区的第一测量子帧模式和关于第一相邻小区和第二相邻小区的小区特定参考信号(CRS)的辅助信息; 以及从所述服务小区接收所述第一和第二相邻小区的第二测量子帧模式。 这里,服务小区和第一相邻小区都是针对作为第二相邻小区的受害小区的攻击小区,并且可以基于几乎空白的子帧(ABS)模式来设置所接收的第二测量子帧模式,当CRS为 服务小区与第二相邻小区的CRS相冲突,但是第一相邻小区的CRS不与第二相邻小区的CRS冲突。

    METHOD FOR DETERMINING UPLINK TRANSMISSION POWER
    100.
    发明申请
    METHOD FOR DETERMINING UPLINK TRANSMISSION POWER 审中-公开
    确定上行传输功率的方法

    公开(公告)号:US20160112964A1

    公开(公告)日:2016-04-21

    申请号:US14976308

    申请日:2015-12-21

    Abstract: A method, performed by a user equipment (UE), is provided for determining uplink transmission power. A radio frequency (RF) unit is configured to use for an uplink transmission a frequency range of 1980 MHz through 2010 MHz or 1920 MHz through 2010 MHz. The UE receives a value of an additional maximum power reduction (A-MPR) from a serving base station (BS) adjacent to a neighboring BS for serving another UE using for an uplink transmission a frequency range of 2010 MHz through 2025 MHz. An uplink signal is transmitted at an uplink transmission power calculated by using the value of the A-MPR. The value of the A-MPR is 11 dB or 15 dB.

    Abstract translation: 提供了一种由用户设备(UE)执行的方法,用于确定上行链路传输功率。 射频(RF)单元被配置为用于上行链路传输,频率范围为1980MHz至2010MHz或1920MHz至2010MHz。 UE从邻近BS的服务基站(BS)接收附加最大功率降低(A-MPR)的值,用于为2010年至2025MHz的频率范围的上行链路传输服务另一个UE。 以通过使用A-MPR的值计算的上行链路发送功率发送上行链路信号。 A-MPR的值为11 dB或15 dB。

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