US Patent No. 10,462,787


Patent No. 10,462,787
Issue Date October 29, 2019
Title Method Of Allocating Radio Resources In Multi-carrier System
Inventorship Hak Seong Kim, Seoul (KR)
Bong Hoe Kim, Ansan-si (KR)
Joon Kui Ahn, Seoul (KR)
Dong Youn Seo, Seoul (KR)
Jung Hoon Lee, Seoul (KR)
Young Woo Yun, Seoul (KR)
Suk Hyon Yoon, Seoul (KR)
Eun Sun Kim, Seoul (KR)
Ki Jun Kim, Seoul (KR)
Assignee WILD GUARD LTD., Central Hong Kong (HK)

Claim of US Patent No. 10,462,787

6. A method of obtaining buffer status information of a user equipment at a base station in an orthogonal frequency division multiplexing (OFDM)-based mobile communication system, wherein the user equipment is in a state that data transmission from the user equipment is performed based on scheduling from the base station, the method comprising:receiving, by the base station, a signal of one bit-level information from the user equipment periodically via a physical uplink channel that is not a random access channel, while there is no traffic channel resource from the user equipment to the base station, wherein the signal is for informing presence of a request for an uplink channel resource used to communicate the buffer status information to the base station;
transmitting, by the base station, first resource allocation information for a first uplink channel to the user equipment after receiving the signal; and
receiving, by the base station, the buffer status information from the user equipment through the first uplink channel using the first resource allocation information.