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公开(公告)号：US12047815B2
公开(公告)日：2024-07-23
申请号：US17487516
申请日：2021-09-28
CPC分类号： H04W28/0942 , H04W28/0284 , H04W72/52
摘要： Disclosed is an apparatus for dynamic resource allocation in cloud radio access networks, and the dynamic resource allocation apparatus includes: a deep reinforcement learning unit learning load fluctuation of a remote radio head by using deep reinforcement learning and predicting the load fluctuation of the remote radio head; a calculation unit calculating a computational resource of a virtual machine corresponding to the remote radio head by using the predicted load fluctuation; and an allocation unit allocating the calculated computational resource to the virtual machine.
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公开(公告)号：US11647470B2
公开(公告)日：2023-05-09
申请号：US17535732
申请日：2021-11-26
发明人： Wooyeol Choi , Yonggang Kim
摘要： Disclosed are data transmission method and apparatus using path diversity. The data transmission method using path diversity may include steps of: (a) calculating a delay robustness value representing path diversity for a routing path including at least one relay node; (b) determining a trade-off relationship between the delay robustness value and power consumption; (c) determining the power consumption and a routing path based on the trade-off relationship; and (d) transmitting data to a destination node through the routing path according to the power consumption.
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公开(公告)号：US11647468B2
公开(公告)日：2023-05-09
申请号：US17523493
申请日：2021-11-10
发明人： Wooyeol Choi , Sifat Rezwan
IPC分类号： H04W52/36 , H04W52/26 , H04L5/00 , H04W72/044
CPC分类号： H04W52/362 , H04L5/0005 , H04W52/265 , H04W72/0473
摘要： Provided is a transmission power allocation method based on reinforcement learning with an efficient user clustering method. According to an embodiment of the present disclosure, a transmission power allocation method based on user clustering and reinforcement learning of a base station in a non-orthogonal multiple access (NOMA) system includes a sorting step of sorting channel gains of user equipments located in a coverage of the base station in a size order, a clustering step of allocating the user equipment to each cluster based on the size order, and a power allocation step of allocating power to each user equipment included in the cluster by using a quality function based on a state and an action.
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公开(公告)号：US11765712B2
公开(公告)日：2023-09-19
申请号：US17535740
申请日：2021-11-26
发明人： Wooyeol Choi , Yonggang Kim
IPC分类号： H04W72/12 , H04W72/121 , H04W72/542
CPC分类号： H04W72/121 , H04W72/542
摘要： Disclosed is a method and an apparatus for multi-user scheduling for minimizing transmission delay. A method of multi-user scheduling for minimizing transmission delay according to an exemplary embodiment of the present invention includes: (a) clustering at least one station (STA) among a plurality of STAs to a terminal cluster based on transmission delay for each of the plurality of STAs; (b) transmitting a trigger frame including scheduling information about the terminal cluster including said at least one STA to said at least one STA; and (c) receiving uplink data from said at least one STA in response to the transmission of the trigger frame.
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