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公开(公告)号：US11729678B2
公开(公告)日：2023-08-15
申请号：US17843467
申请日：2022-06-17
发明人： Hyun-Jeong Kang , Sun-Heui Ryoo , Jung-Soo Jung , Sang-Wook Kwon , Jong-Hyung Kwun , Suk-Won Kim , June Hwang
CPC分类号： H04W36/0072 , H04W36/04 , H04W72/21 , H04W72/27 , H04W74/0833 , H04W72/51
摘要： The objective of the present invention is to provide services by effectively switching, by a terminal, a macro cell and a small cell on the basis of time in a communication system in which the macro cell and the small cell coexist. A method for operating a terminal in a wireless communication system comprises the steps of: transmitting, to a first base station and/or a second base station, information on a switching delay time required for the terminal to perform cell switching; and communicating through a resource of the first base station and a resource of the second base station which are allocated by considering the switching delay time.
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公开(公告)号：US11564175B2
公开(公告)日：2023-01-24
申请号：US17092795
申请日：2020-11-09
发明人： Sun-Heui Ryoo , Jung-Soo Jung , Hyun-Jeong Kang , Jong-Hyung Kwun , Sung-Jin Lee
摘要： A method and an apparatus for controlling uplink power in a wireless communication system are provided. The method for controlling uplink power of a User Equipment (UE) forming a transmission link with a plurality of BSs (BSs), a power headroom report trigger event by at least one of the plurality of BSs is detected. Power headroom information of the UE is reported to at least one of the plurality of BSs.
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公开(公告)号：US11006390B2
公开(公告)日：2021-05-11
申请号：US15572469
申请日：2016-05-09
发明人： Jung-Min Moon , Sun-Heui Ryoo , Seung-Hoon Park , Jung-Soo Jung
IPC分类号： H04W72/04 , H04L1/18 , H04W74/08 , H04L1/20 , H04W16/14 , H04W74/00 , H04W52/24 , H04W52/36 , H04W24/10
摘要： The present invention relates to a 5th generation (5G) or pre-5G communication system to be provided for supporting a data transmission rate higher than that of a 4th generation (4G) communication system such as long term evolution (LTE). According to the present invention, a method by which a transmission device transmits a signal is a wireless communication system supporting an unlicensed band comprises the steps of: detecting the need for controlling a clear channel assessment (CCA) threshold during the performance of a CCA process; and controlling the CCA threshold used in the CCA process.
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公开(公告)号：US10856224B2
公开(公告)日：2020-12-01
申请号：US15524978
申请日：2015-11-06
摘要： 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 a Long Term Evolution (LTE).The present disclosure provides a method and system for enabling discontinuous reception (DRX) over an unlicensed band in cellular networks. In one embodiment, the method comprises of monitoring, by a user equipment (UE), an unlicensed channel at a pre-configured on period of a DRX cycle, wherein the UE wakes up during a DRX on period and sleeps during DRX off period, receiving an indication of extension of the DRX on period from an associated evolved node B (eNB) when the associated eNB is unable to acquire an unlicensed channel during a DRX on period of the licensed channel and continuously monitoring the unlicensed band for the extended DRX on period. The time period for extension of the DRX on period of the unlicensed channel is selected from a set of pre-specified extension values. The present disclosure further enables the UE to terminate monitoring of the DRX on period of the unlicensed channel upon receiving a stop monitoring indication from the associated eNB.
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5.发明授权公开(公告)号：US10728888B2
公开(公告)日：2020-07-28
申请号：US16530791
申请日：2019-08-02
摘要： Disclosed is a 5G or pre-5G communication system provided so as to support a data transmission rate higher than that of a 4G communication system, such as LTE. A method and a device for transmitting information in a communication system are disclosed. The method for allocating resources in a cellular network using an unlicensed band comprises the steps of: generating at least one resource allocation signal containing information indicating a plurality of continuous uplink subframes capable of communicating through the unlicensed band; transmitting the resource allocation signal to a user equipment (UE) through the unlicensed band for the duration of at least one downlink subframe; and receiving uplink data from the UE for the duration of the continuous uplink subframes.
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公开(公告)号：US10601791B2
公开(公告)日：2020-03-24
申请号：US16557130
申请日：2019-08-30
发明人： Sun-Heui Ryoo , Soeng-Hun Kim , Jung-Soo Jung , Jung-Min Moon , Anshuman Nigam , Sung-Jin Lee
摘要： 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). A method for communicating by a user equipment with a macro cell base station and a small cell base station in a communication system is provided. The method comprises applying a first base station security key to a first communication link with the macro cell base station; generating a second base station security key to be used for a second communication link with the small cell base station based on the first base station security key; applying the second base station security key to the second communication link with the small cell base station; and communicating through at least one of the first communication link and the second communication link.
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7.再颁专利公开(公告)号：USRE47736E1
公开(公告)日：2019-11-19
申请号：US15177995
申请日：2016-06-09
发明人： Sang-Bum Kim , Sung-Ho Choi , Soeng-Hun Kim , Kyeong-In Jeong , Jung-Soo Jung , Chae-Gwon Lim
摘要： A method and an apparatus for supporting a discontinuous reception (DRX) operation in a Node B in a mobile communication system are provided. The method includes defining a second System Frame Number (SFN) where one cycle of a first SFN corresponds to one bit, transmitting information on the second SFN to a User Equipment (UE), determining a second SFN which is used to transmit a paging signal to the UE, determining a first SFN which is used to transmit the paging signal in the determined second SFN, and transmitting the paging signal to the UE at the determined first SFN.
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公开(公告)号：US10404666B2
公开(公告)日：2019-09-03
申请号：US16192002
申请日：2018-11-15
发明人： Sun-Heui Ryoo , Soeng-Hun Kim , Jung-Soo Jung , Jung-Min Moon , Anshuman Nigam , Sung-Jin Lee
摘要： 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). A method for communicating by a user equipment with a macro cell base station and a small cell base station in a communication system is provided. The method comprises applying a first base station security key to a first communication link with the macro cell base station; generating a second base station security key to be used for a second communication link with the small cell base station based on the first base station security key; applying the second base station security key to the second communication link with the small cell base station; and communicating through at least one of the first communication link and the second communication link.
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公开(公告)号：US10375729B2
公开(公告)日：2019-08-06
申请号：US15154284
申请日：2016-05-13
摘要： A fifth generation (5G) or pre-5G communication system for supporting higher data transmission rate after a fourth generation (4G) communication system, such as long term evolution (LTE) is provided. A method of transmitting data by a transmitting device in a wireless communication system using a shared band includes determining a first length of a next time period for determining a next data transmission in the shared band based on at least one of link information configured with at least two receiving devices, and a measurement value of the transmitting device, determining whether a channel of the shared band is occupied in the next time period, and transmitting next data according to a result of the determinations.
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10.发明授权公开(公告)号：US10237752B2
公开(公告)日：2019-03-19
申请号：US13899009
申请日：2013-05-21
发明人： Jung-Soo Jung
摘要： A method of controlling an operation of a small Base Station (BS) and the small BS in a communication system are provided. The method includes measuring the strengths of signals received from adjacent macro BSs, transmitting a reference signal corresponding to an Identifier (ID) of the small BS at a predetermined time, if a highest of the measured signal strengths received from the adjacent macro BSs is less than a threshold, and operating the small BS in an active mode, upon receipt of an activation signal from at least one Mobile Station (MS). The active mode is a state in which the small BS communicates with an MS within a service area of the small BS.
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