公开(公告)号：US20200015165A1

公开(公告)日：2020-01-09

申请号：US16506831

申请日：2019-07-09

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Sung Hyun HWANG ,  Kyu Min KANG ,  Sung Jin YOO ,  Su Na CHOI ,  Jae Cheol PARK ,  Yong Ho KIM

IPC: H04W52/02 ,  H04W76/27

Abstract: Disclosed are a low-power communication method and a low-power communication apparatus in a communication system. A low-power station may comprise a processor; a memory storing at least one instruction executable by the processor; a receiver for receiving a WUR PPDU according to the at least one instruction; and a transceiver for transmitting and receiving a legacy PPDU according to the at least one instruction, and the at least one instruction may be configured to cause the receiver to receive a WUR wake-up frame from the access point in an on-duration within a WUR duty cycle period; when the WUR wake-up frame is received, cause the processor to transmit a first signal requesting wake-up to the transceiver; and when the first signal is received, cause the transceiver to transition from a sleep state to a wake-up state at a TWT configured between the access point and the low-power station.

公开(公告)号：US20230164857A1

公开(公告)日：2023-05-25

申请号：US17916893

申请日：2021-04-12

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE ,  KOREA NATIONAL UNIVERSITY OF TRANSPORTATION INDUSTRY-ACADEMIC COOPERATION FOUNDATION

Inventor： Sung Hyun HWANG ,  Kyu Min KANG ,  Jae Cheol PARK ,  Jin Hyung OH ,  Dong Woo LIM ,  Su Na CHOI ,  Yong Ho KIM

IPC: H04W76/14 ,  H04W74/08

CPC classification number: H04W76/14 ,  H04W74/0816 ,  H04W74/0866 ,  H04W84/12

Abstract: Disclosed are a method and device for direct communication in a wireless LAN. An operation method of a first device comprises the steps of: transmitting a first frame, which is for setting up a direct communication link, to a second device over one or more links among multiple links; receiving a second frame, which is a response to the first frame, from the second device over the one or more links; and directly communicating with one or more peer devices over the direct communication link when the second frame is received.

公开(公告)号：US20190191376A1

公开(公告)日：2019-06-20

申请号：US16327801

申请日：2017-08-23

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE ,  KOREA NATIONAL UNIVERSITY OF TRANSPORTATION INDUSTRY-ACADEMIC COOPERATION FOUNDATION

Inventor： Yong Ho KIM ,  Sung Hyun HWANG ,  Igor KIM ,  Seung Keun PARK

IPC: H04W52/02 ,  H04W74/06

CPC classification number: H04W52/0229 ,  H04W52/02 ,  H04W74/00 ,  H04W74/06 ,  H04W74/08 ,  H04W84/12 ,  Y02D70/00 ,  Y02D70/10 ,  Y02D70/14

Abstract: Disclosed is a method for operating a communication node supporting a low power mode in a wireless LAN. A method for operating a station, which includes a PCR and a WURx, comprises the steps of: allowing the WURx, which operates in a wake-up state, to receive a wake-up packet from an access point; transitioning an operating state of the PCR from a sleep state to the wake-up state when the wake-up packet is received; allowing the PCR, which operates in the wake-up state, to receive a data frame from an access point; and allowing the PCR to transmit, to the access point, a response to the data frame.