# US 2014/0153537 A1 · Method of allocating radio resources in multi-carrier system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0153537 A1 - Document ID: US20140153537A1 - Status: Published application - Kind: A1 - Application number: 13/857,026 - Filed: 2013-04-04 - Published: 2014-06-05 - Earliest claimed: 2006-02-06 - Assignees: LG Electronics Inc. - Inventors: Hak Seong KIM; Bong Hoe KIM; Joon Kui AHN; Dong Youn SEO; Jung Hoon LEE; Young Woo YUN; Suk Hyon YOON; Eun Sun KIM; Ki Jun KIM - Web page: https://patentgrep.com/patent/US20140153537A1 ## CPC - H04W 72/0453: Resources in frequency domain, e.g. a carrier in FDMA - H04L 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals} - H04L 5/023: {Multiplexing of multicarrier modulation signals, e.g. multi-user orthogonal frequency division multiple access [OFDMA] (multicarrier modulation H04L27/2601)} - H04L 27/2601: {Multicarrier modulation systems} - H04L 27/2602: {Signal structure} - H04L 27/26035: {Maintenance of orthogonality, e.g. for signals exchanged between cells or users, or by using covering codes or sequences (using different training sequence per antenna H04B7/0684; code allocation H04J13/16)} - H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal - H04W 74/0866: {using a dedicated channel for access} - H04W 84/12: WLAN [Wireless Local Area Networks] - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) ## Abstract A method of allocating radio resources in a multi-carrier system is disclosed, by which a signaling message can be efficiently transmitted according to necessity of a user equipment. In a user equipment of a mobile communication system transceiving data using a plurality of subcarriers, the present invention includes the steps of if the signaling message to be transmitted is generated in the user equipment, generating a preamble sequence according to a user equipment identifier to identify the user equipment, transmitting a preamble signal including the preamble sequence and the signaling message to a base station, and receiving an acknowledgement signal for the preamble signal generated according to the user equipment identifier. ## Claims ### Claim 1 A method of performing uplink transmission by a user equipment in a mobile communication system, the method comprising: transmitting a signal of one bit information via an uplink control channel while the user equipment is uplink time aligned, wherein the signal is used for informing presence of a request for an uplink channel resource; receiving first resource allocation information for an uplink channel after transmitting the signal; and transmitting buffer status information through the uplink channel using the first resource allocation information. ### Claim 2 (depends on 1) The method of claim 1, wherein the signal of one bit information is transmitted when a condition is satisfied, and the condition includes that data to be transmitted is stored in a buffer of the user equipment. ### Claim 3 (depends on 1) The method of claim 1, wherein the signal of one bit information is transmitted when a condition is satisfied, and the condition includes that the buffer status information needs to be transmitted. ### Claim 4 (depends on 1) The method of claim 1, further comprising receiving second resource allocation information for an uplink shared channel after transmitting the buffer status information. ### Claim 5 (depends on 4) The method of claim 4, further comprising transmitting uplink data through the uplink shared channel using the second resource allocation information. ### Claim 6 (depends on 4) The method of claim 4, wherein the first resource allocation information and the second resource allocation information are received using an identifier of the user equipment. ### Claim 7 (depends on 1) The method of claim 1, further comprising transmitting power headroom information along with the buffer status information. ### Claim 8 A method of receiving uplink transmission by a base station in a mobile communication system, the method comprising: receiving a signal of one bit information from a user equipment via an uplink control channel while the user equipment is uplink time aligned, wherein the signal is used for informing presence of a request for an uplink channel resource; transmitting first resource allocation information for an uplink channel to the user equipment after receiving the signal; and receiving buffer status information from the user equipment through the uplink channel using the first resource allocation information. ### Claim 9 (depends on 8) The method of claim 8, further comprising transmitting second resource allocation information for an uplink shared channel to the user equipment after receiving the buffer status information. ### Claim 10 (depends on 9) The method of claim 9, further comprising receiving uplink data from the user equipment through the uplink shared channel using the second resource allocation information. ### Claim 11 (depends on 9) The method of claim 9, wherein the first resource allocation information and the second resource allocation information are transmitted to the user equipment using an identifier of the user equipment. ### Claim 12 (depends on 8) The method of claim 8, further comprising receiving power headroom information from the user equipment along with the buffer status information. ### Claim 13 A user equipment in a wireless communication system, the user equipment comprising: a transmitter/receiver; a buffer; and a processor connected to the transmitter/receiver and configured to control the transmitter/receiver for performing uplink transmission, wherein performing the uplink transmission comprises: transmitting a signal of one bit information via an uplink control channel while the user equipment is uplink time aligned, wherein the signal is used for informing presence of a request for an uplink channel resource; receiving first resource allocation information for an uplink channel after the transmission of the signal; and transmitting buffer status information through the uplink channel using the first resource allocation information. ### Claim 14 (depends on 13) The user equipment of claim 13, wherein the signal of one bit information is transmitted when a condition is satisfied, and the condition includes that data to be transmitted is stored in the buffer. ### Claim 15 (depends on 13) The user equipment of claim 13, wherein the signal of one bit information is transmitted when a condition is satisfied, and the condition includes that the buffer status information needs to be transmitted. ### Claim 16 (depends on 13) The user equipment of claim 13, wherein performing the uplink transmission further comprises receiving second resource allocation information for an uplink shared channel after transmitting the buffer status information. ### Claim 17 (depends on 16) The user equipment of claim 16, wherein performing the uplink transmission further comprises transmitting uplink data through the uplink shared channel using the second resource allocation information. ### Claim 18 (depends on 16) The user equipment of claim 16, wherein the first resource allocation information and the second resource allocation information are received using an identifier of the user equipment. ### Claim 19 (depends on 13) The user equipment of claim 13, wherein the buffer status information is transmitted along with power headroom information. ### Claim 20 A base station in a wireless communication system, the base station comprising: a transmitter/receiver; and a processor connected to the transmitter/receiver and configured to control the transmitter/receiver for receiving uplink transmission, wherein receiving the uplink transmission comprises: receiving a signal of one bit information from a user equipment via an uplink control channel while the user equipment is uplink time aligned, wherein the signal is used for informing presence of a request for an uplink channel resource; transmitting first resource allocation information for an uplink channel to the user equipment after receiving the signal; and receiving buffer status information from the user equipment through the uplink channel using the first resource allocation information. ### Claim 21 (depends on 20) The base station of claim 20, wherein receiving the uplink transmission further comprises transmitting second resource allocation information for an uplink shared channel to the user equipment after receiving the buffer status information. ### Claim 22 (depends on 21) The base station of claim 21, wherein receiving the uplink transmission further comprises receiving uplink data from the user equipment through the uplink shared channel using the second resource allocation information. ### Claim 23 (depends on 21) The base station of claim 21, wherein the first resource allocation information and the second resource allocation information are transmitted to the user equipment using an identifier of the user equipment. ### Claim 24 (depends on 20) The base station of claim 20, wherein the buffer status information is received from the user equipment along with power headroom information.