公开(公告)号：US11825295B2

公开(公告)日：2023-11-21

申请号：US17693364

申请日：2022-03-13

Applicant: Electronics and Telecommunications Research Institute

Inventor： Geon-Min Yeo ,  Byung-Han Ryu

IPC: H04W72/04 ,  H04W72/23 ,  H04W72/21

CPC classification number: H04W72/23 ,  H04W72/21

Abstract: The present application relates to a scheduling device and method of a mobile communication system. In the packet scheduling method, a base station performs packet scheduling for a terminal station in a mobile communication system, and a transport channel comprising an uplink shared channel (UL-SCH) and a physical channel comprising an uplink grant channel (UL-GCH) between the terminal and the base station are classified into a plurality of channels. In addition, in the packet scheduling method: a) the base station receives scheduling information from the terminal; b) the base station allocates an uplink resource for uplink traffic transmission for terminal based on the received scheduling information; and c) information for the allocated uplink resource is transmitted to the terminal through the UL-GCH of the physical channel.

公开(公告)号：US09819466B2

公开(公告)日：2017-11-14

申请号：US14571769

申请日：2014-12-16

Applicant: Electronics and Telecommunications Research Institute

Inventor： Geon-Min Yeo ,  Young-Il Kim ,  Won Ryu

IPC: H04W72/04 ,  H04L12/28 ,  H04L5/00 ,  H04W74/04 ,  H04L1/16 ,  H04W84/18

CPC classification number: H04L5/0055 ,  H04L1/1614 ,  H04W74/04 ,  H04W84/18 ,  Y02D70/144 ,  Y02D70/22

Abstract: A method of retransmitting a packet for low-power wireless sensor communications of a coordinator in a sensor network is provided. The method includes receiving packets from a plurality of sensor devices during a plurality of guaranteed time slots (GTSs) of a Contention Free Period (CFP) which are allocated to the respective sensor devices; checking whether there is an error in each of the received packets; generating one GTS Bulk ACK frame that contains pieces of ACK information to be transmitted to the respective sensor devices, according to the error check results; and transmitting the generated GTS Bulk ACK frame to the plurality of sensor devices.