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公开(公告)号：US11445502B2
公开(公告)日：2022-09-13
申请号：US16913617
申请日：2020-06-26
Inventor： Hyun Gu Hwang
Abstract: An operation method of a first terminal in a wireless distributed communication system using a synchronous TDMA scheme may comprise configuring a position of a first sub-slot in a frame of an information tone channel; detecting, by the first terminal in a sleep state, a first information tone signal transmitted from a second terminal in the first sub-slot; maintaining a state of the first terminal to the sleep state when the first information tone signal is not detected in the first sub-slot, and transitioning the state of the first terminal to a wake-up state when the first information tone signal is detected in the first sub-slot; and transmitting and receiving, by the first terminal having transitioned to the wake-up state, a data signal to and from the second terminal through a preconfigured data channel.
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Patent Agency Ranking
公开(公告)号：US11057933B2
公开(公告)日：2021-07-06
申请号：US16488478
申请日：2018-02-28
Inventor： Hyun Gu Hwang
Abstract: The present invention relates to a method of avoiding collision in a. More specifically, the present invention relates to a method of effectively avoiding collision when resources are allocated to and used by substantial mobile terminals in a synchronous wireless distribution communication system. The method of avoiding collision includes: determining, by a terminal, a slot to be transmitted in a main frequency channel; in a slot prior to the determined slot, performing contention using a contention deputy channel having a different frequency from the main frequency channel; and using the selected slot of the main frequency channel when winning the contention.
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公开(公告)号：US12302364B2
公开(公告)日：2025-05-13
申请号：US17502750
申请日：2021-10-15
Inventor： Hyun Gu Hwang
IPC: H04W4/00 , H04W24/08 , H04W72/0446 , H04W72/0453 , H04W72/30 , H04W72/51
Abstract: A channel resource management method performed by a first communication node in a communication system may comprise: monitoring channel information broadcast packets transmitted from other communication nodes; receiving a first broadcast packet, which is a channel information broadcast packet transmitted from a third communication node that is included in the other communication nodes and performs one-to-one communication with a second communication node included in the other communication nodes; and managing a one-to-one channel resource for one-to-one communication with a fourth communication node included in the other communication nodes based on information included in the first broadcast packet, wherein the first broadcast packet includes information on a first one-to-one channel resource allocated for one-to-one communication between the second and third communication nodes.
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4.发明授权公开(公告)号：US09906392B2
公开(公告)日：2018-02-27
申请号：US15008150
申请日：2016-01-27
Inventor： Hyun Gu Hwang , Gi Yoon Park
IPC: H04L27/26
CPC classification number: H04L27/2623
Abstract: Provided are a method and an apparatus for processing a transmission signal, which reduce a peak value to an appropriate magnitude by appropriately distorting a final transmission signal through implementation into simple hardware having a small memory and a small operation amount to effectively reduce a peak-to-average power ratio (PAPR) by effectively processing a signal for wireless communication in real time.
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公开(公告)号：US11825311B2
公开(公告)日：2023-11-21
申请号：US17538980
申请日：2021-11-30
Inventor： Hyun Gu Hwang
IPC: H04W12/106 , H04W12/0431 , H04B17/318
CPC classification number: H04W12/106 , H04W12/0431 , H04B17/318
Abstract: A method of checking the integrity of a wireless distributed communication packet using a trust field in a wireless distributed communication system may comprise: allowing a first terminal to acquire a trust-field-generation-specific secret key of a second terminal; allowing the second terminal to generate a trust field utilizing all bits to be transmitted to the first terminal; allowing the second terminal to generate a first packet using the trust field and all the bits to be transmitted; allowing the second terminal to transmit the first packet to the first terminal; and allowing the first terminal to check the integrity of the first packet using the trust-field-generation-specific secret key and the trust field included in the first packet.
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公开(公告)号：US11523389B2
公开(公告)日：2022-12-06
申请号：US17033112
申请日：2020-09-25
Inventor： Hyun Gu Hwang
Abstract: An operation method of a first distributed terminal, in a synchronized wireless distributed communication system which has a plurality of communication resources configured with a plurality of channels having different center frequencies and includes the first distributed terminal and a second distributed terminal, may comprise receiving slots mapped to the communication resources in a resource allocation channel having a center frequency independent from the plurality of channels; measuring communication environments of the communication resources by using a mapping relationship between the received slots of the resource allocation channel and the communication resources; selecting a first communication resource to be allocated using the measured communication environments of the communication resources; allocating the selected first communication resource; and continuously occupying the allocated first communication resource.
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