# US 2014/0157075 A1 · Method for allocating resources in wireless communication system and system thereof > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0157075 A1 - Document ID: US20140157075A1 - Status: Published application - Kind: A1 - Application number: 14/165,062 - Filed: 2009-04-30 - Published: 2014-06-05 - Earliest claimed: 2008-05-06 - Assignees: Samsung Electronics Co., Ltd. - Inventors: Soeng Hun Kim; Gert-Jan Van Lieshout - Web page: https://patentgrep.com/patent/US20140157075A1 ## CPC - H04L 1/0025: {Transmission of mode-switching indication} - G06F 11/1004: {to protect a block of data words, e.g. CRC or checksum (G06F11/1076 takes precedence; security arrangements for protecting computers or computer systems against unauthorized activity G06F21/00)} - H04L 1/0072: {Error control for data other than payload data, e.g. control data} - H04L 1/1887: {Scheduling and prioritising arrangements} - H04W 12/106: Packet or message integrity - H04W 28/04: Error control - H04L 1/0061: {Error detection codes} - H04L 63/123: {received data contents, e.g. message integrity} - H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract This invention relates to a method for allocating resources in a wireless communication system and a system thereof The disclosed method comprises steps for: allowing a user's terminal to receive information about the wireless transmission resources among semi-permanent transmission resources; performing CRC-calculation by receiving a message about the allocation of the semi-permanent transmission resources based on the received information; verifying the validity of the message by comparing the information about the wireless resources indicated in the received message with the received information about the wireless transmission resources; and receiving data as the transmission resources indicated in the message if there is no error in the verification. ## Claims ### Claim 1 A resource allocation method of a user terminal, comprising: performing Cyclic Redundancy Checking (CRC) operation on a semi-persistent transmission resource allocation message received; verifying, when the CRC operation succeeds, validity of the semi-persistent transmission resource allocation message by comparing transmission resource information contained in the semi-persistent transmission resource allocation message with a previously received radio transmission resource information; and using, when the validity of the semi-persistent transmission resource allocation message is verified, the transmission resource indicated by the semi-persistent transmission resource allocation message semi-persistently. ### Claim 2 (depends on 1) The resource allocation method of claim 1, wherein verifying validity of the semi-persistent transmission resource allocation message comprises determining whether a MAC PDU size indicated in the semi-persistent transmission resource allocation message is equal to one of MAC PDU sizes contained in the previously received radio transmission resource information. ### Claim 3 (depends on 2) The resource allocation method of claim 2, wherein the indicated MAC PDU size is a value obtained from a number of resource blocks, a modulation scheme, a channel coding rate, and a number of bits per resource block that are acquired from the semi-persistent transmission resource allocation message. ### Claim 4 (depends on 1) The resource allocation method of claim 1, wherein verifying validity of the semi-persistent transmission resource allocation message comprises determining whether a number of resource blocks indicated by the semi-persistent transmission resource allocation message is less than a maximum number of resource blocks of the previously received radio transmission resource information. ### Claim 5 (depends on 1) The resource allocation method of claim 1, further comprising discarding, when the CRC operation fails, the semi-persistent transmission resource allocation message. ### Claim 6 (depends on 1) The resource allocation method of claim 1, wherein verifying validity of the semi-persistent transmission resource allocation message comprises: transmitting an HARQ message to a first packet transmitted on the transmission resource indicated by the semi-persistent transmission resource allocation message; and receiving at least one of an HARQ ACK in response to the HARQ message to the first packet and a retransmission resource allocation message in response to the HARQ message. ### Claim 7 (depends on 6) The resource allocation method of claim 6, further comprising using, when at least one of an HARQ ACK in response to the HARQ message and retransmission resource allocation message in response to the HARQ message is received, the transmission resource indicated by the semi-persistent transmission resource allocation message. ### Claim 8 (depends on 6) The resource allocation method of claim 6, further comprising discarding, when none of an HARQ ACK in response to the HARQ message and retransmission resource allocation message in response to the HARQ message is received, the semi-persistent transmission resource allocation message. ### Claim 9 A user terminal which is allocated transmission resource by means of a semi-persistent transmission resource allocation message, comprising a reception unit which receives the semi-persistent transmission resource allocation message, compares, when no error is in CRC operation result, transmission resource information contained in the semi-persistent transmission resource allocation message with a previously received radio transmission resource information to verify validity of the semi-persistent transmission resource allocation message, and uses, when the validity of the semi-persistent transmission resource allocation message is verified, the transmission resource indicated by the semi-persistent transmission resource allocation message semi-persistently. ### Claim 10 (depends on 9) The user terminal of claim 9, wherein the reception unit verifies the validity of the semi-persistent transmission resource allocation message by comparing a MAC PDU size indicated in the semi-persistent transmission resource allocation message with MAC PDU sizes contained in the previously received radio transmission resource information. ### Claim 11 (depends on 10) The user terminal of claim 10, wherein the reception unit calculates the MAC PDU size based on at least one of a number of resource blocks, a modulation scheme, a channel coding rate, and a number of bits per resource block that are acquired from the semi-persistent transmission resource allocation message ### Claim 12 (depends on 9) The user terminal of claim 9, wherein the reception unit verifies the CRC operation result depending on whether a number of resource blocks indicated by the semi-persistent transmission resource allocation message is less than a maximum number of resource blocks of the previously received radio transmission resource information. ### Claim 13 (depends on 9) The user terminal of claim 9, wherein the reception unit discards, if an error is in CRC operation result, the semi-persistent transmission resource allocation message. ### Claim 14 (depends on 9) The user terminal of claim 9, further comprising a radio resource control unit which receives the radio transmission resource information including at least one of available MAC PDU sizes and maximum number of resource blocks from a base station. ### Claim 15 (depends on 9) The user terminal of claim 9, wherein the reception unit verifies the validity of the semi-persistent transmission resource allocation message, after transmitting an HARQ message to a first packet transmitted on the transmission resource indicated by the semi-persistent transmission resource allocation message, depending on whether at least one of an HARQ ACK in response to the HARQ message to the first packet and a retransmission resource allocation message in response to the HARQ message. ### Claim 16 (depends on 15) The user terminal of claim 15, wherein the reception unit uses, when at least one of an HARQ ACK in response to the HARQ message and retransmission resource allocation message in response to the HARQ message is received, the transmission resource indicated by the semi-persistent transmission resource allocation message. ### Claim 17 (depends on 15) The user terminal of claim 15, wherein the reception unit discards, when none of an HARQ ACK in response to the HARQ message and retransmission resource allocation message in response to the HARQ message is received, the semi-persistent transmission resource allocation message.