# US 2013/0279348 A1 · Apparatus and method for generating arq feedback message in wireless communication system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2013/0279348 A1 - Document ID: US20130279348A1 - Status: Published application - Kind: A1 - Application number: 13/920,559 - Filed: 2013-06-18 - Published: 2013-10-24 - Earliest claimed: 2009-10-30 - Assignees: Samsung Electronics Co., Ltd. - Applicants: Samsung Electronics Co. Ltd. - Inventors: Hyeun-Mok JUNG; Young-Bin CHANG - Web page: https://patentgrep.com/patent/US20130279348A1 ## CPC - H04L 1/1864: {ARQ related signaling (H04L1/1607 takes precedence)} - H04L 1/1614: {using bitmaps} - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) ## Abstract An apparatus and a method for generating an Automatic Repeat reQuest (ARQ) feedback message in a wireless communication system are provided. The method includes generating first feedback information of at least one ARQ block, determining whether any ARQ blocks include at least one successfully received ARQ sub-block, when the at least one erroneous ARQ block includes at least one successfully received ARQ sub-block, adding second feedback information of the ARQ sub-blocks to the first feedback information of the ARQ blocks using a field indicating whether the second feedback information is added and a field indicating the erroneous ARQ blocks including the at least one successfully received ARQ sub-block, and sending the first feedback information with the second feedback information added, to the transmitting stage. ## Claims ### Claim 1 A method for transmitting an Automatic Repeat reQuest (ARQ) feedback message at an ARQ block receiver in a wireless communication system, the method comprising: receiving at least one ARQ block from an ARQ block transmitter; and transmitting the ARQ feedback message including first information and second information to the ARQ block transmitter, wherein the first information indicates that the received ARQ block is one of an ACKed ARQ block and a NACKed ARQ block, and wherein the second information indicates whether at least one of ARQ sub-blocks of the NACKed ARQ block is received correctly. ### Claim 2 (depends on 1) The method of claim 1, wherein the ACKed ARQ block indicates that the ARQ block is received correctly. ### Claim 3 (depends on 1) The method of claim 1, wherein the NACKed ARQ block indicates that at least one ARQ sub-block in the ARQ block is received correctly. ### Claim 4 (depends on 1) The method of claim 1, wherein the ARQ feedback message further comprises third information indicating the NACKed ARQ block is one of partially NACKed ARQ block and completely NACKed ARQ block, and wherein the second information indicates whether at least one ARQ sub-block of the partially NACKed ARQ block is received correctly. ### Claim 5 (depends on 4) The method of claim 4, wherein the completely NACKed ARQ block indicates that no ARQ sub-block in the ARQ block is received correctly. ### Claim 6 (depends on 4) The method of claim 4, wherein the ARQ feedback message further includes fourth information indicating existence of at least one of the second information and the third information. ### Claim 7 (depends on 1) The method of claim 1, wherein the ARQ feedback message further includes fourth information indicating existence of ARQ sub-block ACK/NACK indication. ### Claim 8 (depends on 1) The method of claim 1, wherein the second information indicates a sequence number of a first correctly received ARQ sub-block and a number of correctly received consecutive ARQ sub-blocks from the first correctly received ARQ sub-block. ### Claim 9 (depends on 8) The method of claim 8, wherein the second information further indicates at least one of a bitmap indicating errors in the ARQ sub-blocks, existence of the additional bitmap, a format of the second information, a sequence number of a last successfully received ARQ sub-block or a first correctly received ARQ sub-block according to the format of the second information, existence of the additional second information, a sequence number information of the ARQ sub-blocks, a sequence bitmap information indicating ACK/NACK information of a sequence group, and information indicating a length of the sequence group. ### Claim 10 (depends on 1) The method of claim 1, wherein the ARQ feedback message further includes fifth information indicating at least one of an identifier of a connection or flow with the ARQ applied, a format of the first information, a sequence number of a last successfully received ARQ block, and a first erroneous ARQ block according to the format of the first information. ### Claim 11 (depends on 10) The method of claim 10, wherein the format of the first information indicates at least one of a cumulative ACK scheme and a selective ACK scheme. ### Claim 12 An Automatic Repeat reQuest (ARQ) receiver in a wireless communication system, the apparatus comprising: a receiver for receiving at least one ARQ block from a an ARQ block transmitter; and a transmitter for transmitting an ARQ feedback message including a first information and a second information to the ARQ block transmitter, wherein the first information indicates that the received ARQ block is one of an ACKed ARQ block and a NACKed ARQ block, and wherein the second information indicates whether at least one ARQ sub-block of the NACKed ARQ block is received correctly. ### Claim 13 (depends on 12) The apparatus of claim 12, wherein the ACKed ARQ block indicates that the ARQ block is received correctly. ### Claim 14 (depends on 12) The apparatus of claim 12, wherein the NACKed ARQ block indicates that at least one ARQ sub-block in the ARQ block is received correctly. ### Claim 15 (depends on 12) The apparatus of claim 12, wherein the ARQ feedback message further includes third information indicating the NACKed ARQ block is one of a partially NACKed ARQ block and a completely NACKed ARQ block, and wherein the second information indicates whether at least one ARQ sub-block of the partially NACKed ARQ block is received correctly. ### Claim 16 (depends on 15) The apparatus of claim 15, wherein the completely NACKed ARQ block indicates that no ARQ sub-blocks in the ARQ block is received correctly. ### Claim 17 (depends on 15) The apparatus of claim 15, wherein the ARQ feedback message further includes fourth information indicating existence of at least one of the second information and the third information. ### Claim 18 (depends on 12) The apparatus of claim 12, wherein the ARQ feedback message further includes fourth information indicating existence of ARQ sub-block ACK/NACK indication. ### Claim 19 (depends on 12) The apparatus of claim 12, wherein the second information indicates a sequence number of a first correctly received ARQ sub-block and a number of correctly received consecutive ARQ sub-blocks from the first correctly received ARQ sub-block. ### Claim 20 (depends on 19) The apparatus of claim 19, wherein the second information further indicates at least one of a bitmap indicating errors in the ARQ sub-blocks, existence of the additional bitmap, a format of the second information, a sequence number of a last successfully received ARQ sub-block or a first correctly received ARQ sub-block according to the format of the second information, existence of the additional second information, a sequence number information of the ARQ sub-blocks, sequence bitmap information indicating ACK/NACK information of a sequence group, and information indicating a length of the sequence group. ### Claim 21 (depends on 12) The apparatus of claim 12, wherein the ARQ feedback message further includes fifth information indicating at least one of an identifier of a connection or flow with the ARQ applied, a format of the first information, a sequence number of a last successfully received ARQ block, and a first erroneous ARQ block according to the format of the first information. ### Claim 22 (depends on 21) The method of claim 21, wherein the format of the first information indicates at least one of a cumulative ACK scheme and a selective ACK scheme.