# US 2013/0155993 A1 · Method and apparatus for allocating a hybrid automatic repeat request channel identifier in a wireless access system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2013/0155993 A1 - Document ID: US20130155993A1 - Status: Published application - Kind: A1 - Application number: 13/818,921 - Filed: 2011-09-08 - Published: 2013-06-20 - Earliest claimed: 2010-09-11 - Assignees: LG Electronics Inc. - Inventors: Jeongki Kim; Seunghyun Kang; Youngsoo Yuk - Web page: https://patentgrep.com/patent/US20130155993A1 ## CPC - H04W 72/20: Control channels or signalling for resource management - H04L 1/1822: involving configuration of automatic repeat request [ARQ] with parallel processes - H04L 1/1887: {Scheduling and prioritising arrangements} - H04L 1/1896: {ARQ related signaling} - H04L 5/0044: {Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH} - H04L 5/0055: {Physical resource allocation for ACK/NACK (for physical mapping arrangements in ARQ protocols H04L1/1861)} - 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 for allocating a HARQ channel identifier (ACID) in a wireless access system includes receiving, from a base station, a first message which includes control information indicating an initial value of a HARQ channel identifier mapped onto a specific service flow, via a dynamic service procedure coupled to a base station; receiving a second message indicating persistent resource allocation from the base station, the second message including information regarding the initial value and number of the ACID used in the persistent resource allocation; comparing the initial value of the ACID with the control information; and allocating the value of the ACID used in the persistent resource allocation to the specific service flow when the control information included in the first message is the same as the initial value of the ACID included in the second message as a result of the comparison. ## Claims ### Claim 1 A method for allocating a hybrid automatic repeat request (HARQ) channel identifier (ACID) in a wireless access system, the method comprising: receiving a first message including control information indicating an initial ACID value mapped to a specific service flow from a base station via a dynamic service procedure with respect to the base station; receiving a second message indicating persistent resource allocation from the base station, wherein the second message includes information regarding an initial ACID value and the number of the ACIDs used in the persistent resource allocation; comparing the initial ACID value included in the second message with the control information included in the first message; and allocating the ACID values used in the persistent resource allocation to the specific service flow when a result of the comparison shows that the control information included in the first message is the same as the initial ACID value included in the second message. ### Claim 2 (depends on 1) The method of claim 1, further comprising transmitting to the base station a packet corresponding to the specific service flow through a persistent resource allocation area included in the second message. ### Claim 3 (depends on 2) The method of claim 2, wherein if a plurality of service flows is present, a packet corresponding to the specific service flow is preferentially transmitted to the base station through the persistent resource allocation area. ### Claim 4 (depends on 1) The method of claim 1, further comprising: receiving a third message indicating de-allocation of the persistent resource allocation from the base station; and de-allocating the remaining ACID values other than the initial ACID value corresponding to the control information among the ACID values allocated to the specific service flow. ### Claim 5 (depends on 1) The method of claim 1, wherein the specific service flow is a service flow which is added or changed via a dynamic service addition or change procedure with respect to the base station. ### Claim 6 (depends on 1) The method of claim 1, wherein the specific service flow is a service flow which uses persistent allocation. ### Claim 7 (depends on 1) The method of claim 1, wherein the first message is a dynamic service addition request (DSA-REQ), dynamic service addition response (DSA-RSP), dynamic service change request (DSC-REQ), or dynamic service change response (DSC-RSP) message. ### Claim 8 (depends on 1) The method of claim 1, wherein the second message and the third message are persistent allocation A-MAP information elements (IEs). ### Claim 9 A method for allocating a hybrid automatic repeat request (HARQ) channel identifier (ACID) in a wireless access system, the method comprising: mapping an initial ACID value for each service flow; transmitting a first message including control information indicating an initial ACID value mapped to a specific service flow to a terminal via a dynamic service procedure with respect to the terminal; transmitting a second message indicating persistent resource allocation to the terminal, wherein the second message includes information regarding an initial ACID value and the number of the ACIDs used in the persistent resource allocation; and receiving from the terminal a packet corresponding to the specific service flow through a persistent resource allocation area included in the second message. ### Claim 10 (depends on 9) The method of claim 9, wherein the specific service flow is a service flow which is added or changed via a dynamic service addition or change procedure with respect to the terminal. ### Claim 11 (depends on 9) The method of claim 9, wherein the specific service flow is a service flow which uses persistent allocation. ### Claim 12 (depends on 9) The method of claim 9, wherein the first message is a dynamic service addition request (DSA-REQ), dynamic service addition response (DSA-RSP), dynamic service change request (DSC-REQ), or dynamic service change response (DSC-RSP) message. ### Claim 13 (depends on 9) The method of claim 9, wherein the second message is a persistent allocation A-MAP information element (IE). ### Claim 14 A terminal for allocating a hybrid automatic repeat request (HARQ) channel identifier (ACID) in a wireless access system, the terminal comprising: a radio frequency (RF) unit for transmitting and receiving a radio signal with respect to an external device; and a controller coupled to the RF unit, wherein the controller controls the RF unit to receive a first message including control information indicating an initial ACID value mapped to a specific service flow from a base station via a dynamic service procedure with respect to the base station, and controls the RF unit to receive a second message indicating persistent resource allocation from the base station, wherein the second message includes information regarding an initial ACID value and the number of the ACIDs used in the persistent resource allocation, and wherein the controller compares the initial ACID value included in the second message with the control information included in the first message, and allocates the ACID values used in the persistent resource allocation to the specific service flow when a result of the comparison shows that the control information included in the first message is the same as the initial ACID value included in the second message. ### Claim 15 (depends on 14) The terminal of claim 14, wherein the controller controls the RF unit to transmit to the base station a packet corresponding to the specific service flow via a persistent resource allocation area included in the second message. ### Claim 16 (depends on 14) The terminal of claim 14, wherein the controller controls the RF unit to preferentially transmit a packet corresponding to the specific service flow to the base station through the persistent resource allocation area if a plurality of service flows is present. ### Claim 17 (depends on 14) The terminal of claim 14, wherein the controller controls the RF unit to receive a third message indicating de-allocation of the persistent resource allocation from the base station, and to de-allocate the remaining ACID values other than the initial ACID value corresponding to the control information among the ACID values allocated to the specific service flow. ### Claim 18 (depends on 14) The terminal of claim 14, wherein the specific service flow is a service flow which is added or changed via a dynamic service addition or change procedure with respect to the base station. ### Claim 19 (depends on 14) The terminal of claim 14, wherein the specific service flow is a service flow which uses persistent allocation. ### Claim 20 (depends on 14) The terminal of claim 14, wherein the first message is a dynamic service addition request (DSA-REQ), dynamic service addition response (DSA-RSP), dynamic service change request (DSC-REQ), or dynamic service change response (DSC-RSP) message. ### Claim 21 (canceled)