Apparatus and method for controlling measurement operations in wireless communication system

    公开(公告)号:US11463899B2

    公开(公告)日:2022-10-04

    申请号:US16670062

    申请日:2019-10-31

    Abstract: The method and apparatus relate to a 5th generation (5G) or pre-5G communication system for supporting a higher data rate after a 4th generation (4G) communication system such as long-term evolution (LTE). A method for controlling a measurement operation in a wireless communication system, and an apparatus therefor are provided. The method includes an operation method of a terminal including receiving a message for controlling a measurement operation from a base station, and controlling a measurement operation based on the message. The message including information indicating an object for the application of the controlled measurement operation.

    Method and device for performing handover in wireless communication system

    公开(公告)号:US11147001B2

    公开(公告)日:2021-10-12

    申请号:US16630672

    申请日:2018-05-25

    Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). According to various embodiments of the present disclosure, a device of a terminal in a wireless communication system can include at least one transceiver and at least one processor operationally coupled with at least one transceiver. At least one processor can receive configuration information from a first network node for a first radio access technology (RAT), measure a first quality for a first signal of the first RAT and a second quality for a second signal of a second RAT on the basis of the received configuration information, and determine, whether a handover to a second network for the second RAT is performed, on the basis of the measured first quality or the measured second quality. The configuration information can include parameters for the handover between the first RAT and the second RAT.

    Method and apparatus for transmitting data in wireless communication system

    公开(公告)号:US11096215B2

    公开(公告)日:2021-08-17

    申请号:US15756678

    申请日:2016-09-02

    Abstract: The present disclosure provides methods and apparatuses for transmitting data, by a base station, in an unlicensed frequency. A method according to a representative embodiment includes: transmitting a first signal for determining whether a data transmission is possible in an unlicensed frequency band; transmitting a second signal for reserving a data transmission in the unlicensed frequency band when the data transmission in the unlicensed frequency band is possible; and transmitting first data to a terminal through the unlicensed frequency band after transmitting the second signal. In an aspect, the base station determines whether other communication devices do not use the unlicensed frequency band, and transmits a channel reservation signal having a period shorter than a resource allocation period during a predetermined period of time, thereby pursuing coexistence with other communication devices and improving the performance of a communication system at the same time.

    LATCH CIRCUIT AND EQUALIZER INCLUDING THE SAME

    公开(公告)号:US20220400035A1

    公开(公告)日:2022-12-15

    申请号:US17834563

    申请日:2022-06-07

    Abstract: A latch circuit and an equalizer including the same are provided. The equalizer includes: an even data path configured to receive a reception data signal and including a first summing circuit and a first latch circuit; and an odd data path configured to receive the reception data signal and including a second summing circuit and a second latch circuit. An even data signal output from the first latch circuit is configured to be input to the second summing circuit, and an odd data signal output from the second latch circuit is configured to be input to the first summing circuit. Each of the first latch circuit and the second latch circuit includes a latch and a multiplexer.

    DIGITAL-TO-ANALOG CONVERSION CIRCUIT AND RECEIVER INCLUDING THE SAME

    公开(公告)号:US20220149863A1

    公开(公告)日:2022-05-12

    申请号:US17306421

    申请日:2021-05-03

    Abstract: A digital-to-analog conversion circuit includes a first digital-to-analog converter (DAC) and a second DAC. The first DAC includes a first current generation circuit (CGC) and a first current-to-voltage converter. The first CGC generates a first current based on a first digital code received through a first terminal to provide the first current to an output node. The second DAC includes a second CGC and a second current-to-voltage converter. The second CGC generates a second current based on a second digital code received through a second input terminal to provide the second current to the output node. The first current-to-voltage converter and the second current-to-voltage converter convert a sum of the first current and the second current to a an analog voltage corresponding to a sum of the first digital code and the second digital code, and output the analog voltage at the output node.

    Device and method for load distribution of base station in wireless communication system

    公开(公告)号:US11218908B2

    公开(公告)日:2022-01-04

    申请号:US16629159

    申请日:2018-06-04

    Abstract: The present disclosure relates to a 5th generation (5G) or pre-5G communication system for supporting a higher data transfer rate beyond a 4th generation (4G) communication system, such as long term evolution (LTE). An operation method of a reception device in a wireless communication system comprises the steps of: receiving a signal transmitted through a plurality of antennas of a transmission device; determining an initial symbol vector on the basis of the signal; determining a first candidate symbol vector, on the basis of a plurality of solution vectors obtained by searching for the initial symbol vector; determining a second candidate symbol vector by changing at least one symbol value of the first candidate symbol vector; and determining a symbol vector transmitted from the transmission device, on the basis of at least a part of the second candidate symbol vector.

    Apparatus and method for managing state of terminal in wireless communication system

    公开(公告)号:US11197337B2

    公开(公告)日:2021-12-07

    申请号:US16244709

    申请日:2019-01-10

    Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). An apparatus and an operation method of a base station in a wireless communication system are provided. The method may include performing data communication with a terminal that is in a first sub-state of a radio connection state, and controlling to change the state of the terminal from the first sub-state to a second sub-state of the radio connection state on the basis of whether data related to the terminal is generated during a transfer duration. Here, the first sub-state is a state in which resources for terminal context information related to the data communication are allocated in a first layer and a second layer, and the second sub-state is a state in which the resource is allocated in the first layer and is released in the second layer.

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