SIGNAL RECEIVING METHOD AND APPARATUS IN DEVICE-TO-DEVICE WIRELESS COMMUNICATION

    公开(公告)号:US20180279242A1

    公开(公告)日:2018-09-27

    申请号:US15571437

    申请日:2016-05-04

    Abstract: The present disclosure relates to a communication technique for converging IoT technology and a 5G communication system for supporting higher data transmission rate after a 4G system, and a system thereof. The present disclosure can be applied to an intelligent service (for example, a smart home, smart building, smart city, smart car or connected car, health care, digital education, retail business, and security and safety related service etc.) based on 5G communication technology and IoT related technology. The present invention relates to a signal receiving method and apparatus of a terminal in device-to-device wireless communication. In the present invention, a D2D reception terminal can measure a DM RS transmitted together with a PSBCH or detect energy with respect to the entirety of or a part of a symbol region through which the PSBCH or DM RS in a synchronization subframe can be transmitted so as to enable use as a criterion for determining whether to retry PSBCH decoding. When a DM RS measurement level or an energy detecting level is larger than a certain threshold value, the D2D reception terminal recognizes that the PSBCH has been transmitted and may retry the PSBCH decoding for a certain time or a certain number of times. When a DM RS measurement level or an energy detecting level is smaller than a certain threshold value, the D2D reception terminal recognizes that the PSBCH has not been transmitted and may not retry the PSBCH decoding. When the PSBCH decoding is not retried, the D2D reception terminal can try other PSSS/SSSS detection. Through the present invention, the D2D reception terminal can avoid inefficient operation of retrying the PSBCH decoding for a certain time or a certain number of times despite non-transmission of the PSBCH.

    TRANSMISSION AND RECEPTION METHOD AND APPARATUS FOR TRANSMITTING SIGNAL USING NARROWBAND IN WIRELESS CELLULAR COMMUNICATION SYSTEM

    公开(公告)号:US20180176788A1

    公开(公告)日:2018-06-21

    申请号:US15737636

    申请日:2016-06-10

    Abstract: Provided are a communication method and system that combine IoT technologies with 5G communication systems supporting a higher data rate after 4G systems. The present disclosure may be applied to intelligent services, such as smart homes, smart buildings, smart cities, smart or connected cars, healthcare, digital education, retail businesses, and security and safety related services on the basis of 5G communication technologies and IoT related technologies. The present invention relates to a wireless communication system, and more particularly, to a method and apparatus for transmitting uplink and downlink signals in a system supporting IoT terminals that perform transmission and reception using only one subcarrier. Specifically, there is provided a method including: allocating a resource for an IoT terminal; and exchanging a signal through a specific subcarrier of the resource between the IoT terminal and the base station supporting the IoT terminal.

    METHOD AND APPARATUS FOR CONTROLLING UPLINK CONTROL INFORMATION TRANSMISSION IN WIRELESS COMMUNICATION SYSTEM PROVIDING WIDEBANDWIDTH SERVICES VIA CARRIER AGGREGATION
    67.
    发明申请
    METHOD AND APPARATUS FOR CONTROLLING UPLINK CONTROL INFORMATION TRANSMISSION IN WIRELESS COMMUNICATION SYSTEM PROVIDING WIDEBANDWIDTH SERVICES VIA CARRIER AGGREGATION 有权
    用于控制无线通信系统中的上行链路控制信息传输的方法和装置,通过载波聚合提供宽带服务

    公开(公告)号:US20160234830A1

    公开(公告)日:2016-08-11

    申请号:US15010584

    申请日:2016-01-29

    Abstract: A method whereby a user equipment (UE) transmits hybrid automatic repeat request (HARQ) acknowledgement (ACK)/negative ACK (NACK) information corresponding to downlink data received from a corresponding base station (ENB) in a long term evolution-advanced (LTE-A) system supporting carrier aggregation (CA) is provided. When physical uplink shared channel (PUSCH) transmission is not scheduled at the time of transmission of HARQ ACK/NACK information, the UE transmits HARQ ACK/NACK information via physical uplink control channel (PUCCH). When PUSCH transmission is scheduled, the UE transmits HARQ ACK/NACK information multiplexed with PUSCH to the ENB. The amount of HARQ ACK/NACK information increases in proportion to the number of aggregated carriers. The present disclosure specifies scheduling operation of the ENB and HARQ ACK/NACK mapping of the UE that maintain reception performance of HARQ ACK/NACK and PUSCH when HARQ ACK/NACK information is multiplexed with PUSCH.

    Abstract translation: 一种用户设备(UE)在长期进化高级(LTE)中发送与从对应的基站(ENB)接收的下行链路数据相对应的混合自动重传请求(HARQ)确认(ACK)/否定ACK(NACK)信息的方法 -A)提供系统支持载体聚合(CA)。 在发送HARQ ACK / NACK信息时不调度物理上行链路共享信道(PUSCH)传输时,UE经由物理上行链路控制信道(PUCCH)发送HARQ ACK / NACK信息。 当PUSCH发送被调度时,UE向PUSCH发送与PUSCH复用的HARQ ACK / NACK信息。 HARQ ACK / NACK信息的量与聚合载波的数量成比例地增加。 本公开规定了当HARQ ACK / NACK信息与PUSCH复用时,维持HARQ ACK / NACK和PUSCH的接收性能的UE的ENB和HARQ ACK / NACK映射的调度操作。

    METHODS AND APPARATUS FOR TRANSMITTING AND RECEIVING SIGNAL BY USING MODULATION ORDER OF INTERFERENCE SIGNAL
    68.
    发明申请
    METHODS AND APPARATUS FOR TRANSMITTING AND RECEIVING SIGNAL BY USING MODULATION ORDER OF INTERFERENCE SIGNAL 有权
    通过使用干扰信号调制顺序发送和接收信号的方法和装置

    公开(公告)号:US20140274085A1

    公开(公告)日:2014-09-18

    申请号:US14206704

    申请日:2014-03-12

    Abstract: Methods and apparatus are provided for receiving a serving signal from a base station by a user equipment. A signal that includes the serving signal and an interference signal is received. A Log Likelihood Ratio (LLR) of the received signal is calculated according to each of a plurality of modulation orders applicable to the interference signal to obtain a plurality of LLR values. A modulation order of the interference signal is determined, based on the plurality of LLR values. The serving signal is reconstructed, based on the determined modulation order.

    Abstract translation: 提供了用于通过用户设备从基站接收服务信号的方法和装置。 接收包括服务信号和干扰信号的信号。 根据可应用于干扰信号的多个调制阶数中的每一个计算接收信号的对数似然比(LLR),以获得多个LLR值。 基于多个LLR值来确定干扰信号的调制阶数。 基于所确定的调制顺序重构服务信号。

    METHOD AND APPARATUS FOR CONTROLLING OPERATION STATE OF BASE STATION IN WIRELESS COMMUNICATION SYSTEM
    69.
    发明申请
    METHOD AND APPARATUS FOR CONTROLLING OPERATION STATE OF BASE STATION IN WIRELESS COMMUNICATION SYSTEM 有权
    用于控制无线通信系统中基站操作状态的方法和装置

    公开(公告)号:US20140134993A1

    公开(公告)日:2014-05-15

    申请号:US14079260

    申请日:2013-11-13

    Abstract: Methods and apparatus are provided for controlling transition of an operation state of a cell in a wireless communication system. The cell includes a transceiver configured to transmit and receive signals to and from a terminal and another cell. The cell also includes a controller configured to transition an operation state of the cell from an active state to a dormant state, transmit a discovery signal, determine whether a cell activation signal is received from a node that controls the cell, and transition the operation state of the cell from the dormant state to the active state when the cell activation signal is received.

    Abstract translation: 提供了用于控制无线通信系统中的小区的操作状态的转换的方法和装置。 该小区包括被配置为向终端和另一个小区发送和接收信号的收发机。 小区还包括控制器,其被配置为将小区的操作状态从活动状态转换到休眠状态,发送发现信号,确定是否从控制小区的节点接收到小区激活信号,并且转换操作状态 的细胞从休眠状态到细胞激活信号被接收到活动状态。

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