System access method and apparatus of a narrowband terminal in a wireless communication system supporting wideband and narrowband terminals

    公开(公告)号:US11122615B2

    公开(公告)日:2021-09-14

    申请号:US17127162

    申请日:2020-12-18

    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.

    Method and apparatus for uplink power control in wireless cellular communication system

    公开(公告)号:US11032777B2

    公开(公告)日:2021-06-08

    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.

    Method and apparatus for transmitting reference signal in wireless communication system

    公开(公告)号:US10903958B2

    公开(公告)日:2021-01-26

    申请号:US15737735

    申请日:2016-06-17

    Abstract: The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. The present invention relates to a method and an apparatus for transmitting a reference signal, the method of a terminal according to the present invention comprising: receiving, through a higher layer signaling, configuration information including first information indicating one of a first demodulation reference signal (DMRS)-related table and a second DMRS-related table; receiving control information including second information on DMRS information; analyzing, based on the second information, a DMRS-related table indicated by the first information; and receiving a DMRS based on the result of the analysis.

    Apparatus and method of resource allocation for data and control channels in a wireless communication system

    公开(公告)号:US10863517B2

    公开(公告)日:2020-12-08

    申请号:US16678577

    申请日:2019-11-08

    Abstract: A method and system for resource allocation is provided. A method includes identifying a set of resource blocks associated with a control channel for a terminal; transmitting, to the terminal, information on the set of resource blocks on a radio resource control signal, the information including first information indicating resource blocks included in the set of resource blocks and second information indicating a number of symbols corresponding to the set of resource blocks; transmitting, to the terminal, control information including information for downlink data on the control channel identified based on the first information and the second information; and transmitting, to the terminal, the downlink data on a data channel based on the control information. The set of resource blocks includes at least one control channel resource. A search space for the control channel of the terminal is defined based on an aggregation level, a number of the at least one control channel resource, and a number of a candidate associated with the control channel.

    METHOD AND APPARATUS OF NR RMSI CORESET CONFIGURATION IN MIB

    公开(公告)号:US20200344097A1

    公开(公告)日:2020-10-29

    申请号:US16946963

    申请日:2020-07-13

    Abstract: Configuring control information comprises determining a frequency offset including an RB and RE level frequency offset, where the frequency offset is determined based on a lowest RE of an SS/PBCH block and a lowest RE of CORESET for RMSI, jointly configuring, using a first field of 4 bits, the RB level frequency offset with a multiplexing pattern of the SS/PBCH block and the CORESET, a BW of the CORESET, and a number of symbols for the CORESET for a combination of a SCS of the SS/PBCH block and a SCS of the CORESET, configuring using a second field of the 4 bits generating an MIB including the RB level frequency offset and the RE level frequency offset; and transmitting, to a UE, the MIB over a PBCH.

    Transmission and reception method and apparatus for transmitting signal using narrowband in wireless cellular communication system

    公开(公告)号:US10812983B2

    公开(公告)日:2020-10-20

    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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