METHOD AND APPARATUS FOR UPLINK POWER CONTROL IN WIRELESS CELLULAR COMMUNICATION SYSTEM

    公开(公告)号:US20200077343A1

    公开(公告)日:2020-03-05

    申请号:US16492870

    申请日:2018-03-20

    Abstract: This disclosure relates to a communication technique and a system thereof that fuses a 5G communication system with IoT technology so as to support higher data transmission rates than 4G systems. This disclosure can be applied to intelligent services (for example, smart home, smart building, smart city, smart car or connected car, services related to healthcare, digital education, retail, security, and safety, or the like) on the basis of 5G communication technology and IoT related technology. The present invention relates to a wireless communication system, and relates to a method and an apparatus that control the power of an uplink transmission signal. More specifically, disclosed is a method in which power in uplink transmission is controlled by a terminal that has received delay reduction mode settings.

    SYSTEM ACCESS METHOD AND APPARATUS OF A NARROWBAND TERMINAL IN A WIRELESS COMMUNICATION SYSTEM SUPPORTING WIDEBAND AND NARROWBAND TERMINALS

    公开(公告)号:US20190289630A1

    公开(公告)日:2019-09-19

    申请号:US16429647

    申请日:2019-06-03

    Abstract: Apparatuses (including base stations and terminals), systems, and methods for supporting both wideband and narrowband communications are described. In one aspect, a base station supporting first type terminals operating on a first bandwidth and second type terminals operating on a second bandwidth is described, having an information formatter, a transceiver, and a controller. The information formatter generates a Low-end Master Information Block (L-MIB) and a Low-end System Information Block (L-SIB), which are transmitted by the transceiver to first type and second type terminals. The L-MIB includes control information on an L-subframe configuration for supporting a second type terminal and a sub-band configuration of the L-subframe, while the L-SIB includes information on downlink reception and uplink transmission of the second type terminal. When the base station receives a Random Access Channel (RACH) preamble request from one of the terminals, the base station performs the random access procedure.

    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.

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