# US 10,873,426 B2 · Methods for transmitting and receiving hybrid automatic retransmit request-acknowledgment (HARQ-ACK) index mapping and uplink resource allocation for channel selection transmission in inter-band time division duplex mode, user equipment to transmit HARQ-ACK, and eNode-B to receive HARQ-ACK > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,873,426 B2 - Document ID: US10873426B2 - Status: Granted - Kind: B2 - Application number: 16/227,369 - Filed: 2018-12-20 - Published: 2019-04-25 - Granted: 2020-12-22 - Earliest claimed: 2012-05-09 - Assignees: Pantech Co., Ltd. - Applicants: Pantech Corporation - Inventors: Dong Hyun Park - Web page: https://patentgrep.com/patent/US10873426B2 ## CPC - H04L 1/1861: {Physical mapping arrangements (for ACK signaling see also H04L5/0053)} - H04L 1/1812: Hybrid protocols; Hybrid automatic repeat request [HARQ] - H04L 5/001: {the frequencies being arranged in component carriers} - H04L 5/0055: {Physical resource allocation for ACK/NACK (for physical mapping arrangements in ARQ protocols H04L1/1861)} - H04L 5/1469: {using time-sharing} - H04W 72/0446: Resources in time domain, e.g. slots or frames - H04W 72/20: Control channels or signalling for resource management - H04W 76/28: Discontinuous transmission [DTX]; Discontinuous reception [DRX] - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract Hybrid Automatic Retransmit ReQuest-Acknowledgment (HARQ-ACK) index mapping and uplink resource allocation is performed and controlled for channel selection transmission. A method for transmitting HARQ-ACK information to an eNode-B (eNB) by a User Equipment (UE) includes identifying KPCell as a number of downlink subframe(s) of a PCell associated with an uplink subframe and identifying KSCell as a number of downlink subframe(s) of an SCell associated with the uplink subframe; generating Discontinuous Transmission (DTX) response information for a cell having a smaller number of downlink subframes between the PCell and the SCell; generating HARQ-ACK information including the generated DTX response information and response information on data received by the UE from the eNB; and transmitting the generated HARQ-ACK information to the eNB through the uplink subframe. ## Claims ### Claim 1 A wireless communication method comprising: receiving, from an eNode-B (eNB), data using at least a part of a first set of downlink subframes on a primary cell and a second set of downlink subframes on a secondary cell, wherein the first set of downlink subframes is associated with an uplink subframe and the second set of downlink subframes is associated with the uplink subframe; determining a difference between a number of the first set of the downlink subframes and a number of the second set of downlink subframes; generating ACK/NACK information comprising Discontinuous Transmission (DTX) response information and response information on data received from the eNB, wherein the DTX response information for a cell, among the primary cell and the secondary cell, is based on the difference, wherein the DTX response information comprises DTX response(s) and the difference corresponds to a number of the DTX response(s); and transmitting, to the eNB, the ACK/NACK information. ### Claim 2 (depends on 1) The method of claim 1, wherein the ACK/NACK information comprises a set of bits, N bits of the set of bits are set as DTX, and N denotes the difference. ### Claim 3 (depends on 1) The method of claim 1, wherein one of the number of the first set of downlink subframes and the number of the second set of downlink subframes is 3 and the other is 1. ### Claim 4 (depends on 1) The method of claim 1, wherein a UL/DL configuration of the primary cell is different from a UL/DL configuration of the secondary cell. ### Claim 5 (depends on 1) The method of claim 1, wherein the ACK/NACK information is transmitted using the uplink subframe. ### Claim 6 (depends on 5) The method of claim 5, wherein the ACK/NACK information is transmitted using PUCCH format 1b. ### Claim 7 A communication apparatus comprising: a memory; and a processor operably coupled to the memory, wherein the processor, when executing program instructions stored in the memory, is configured to: cause the apparatus to receive, from an eNode-B (eNB), data using at least a part of a first set of downlink subframe on a primary cell and a second set of downlink subframes on a secondary cell, wherein the first set of downlink subframes is associated with an uplink subframe and the second set of downlink subframe is associated with the uplink subframe; determine a difference between a number of the first set of the downlink subframes and a number of the second set of downlink subframes; generate ACK/NACK information comprising Discontinuous Transmission (DTX) response information and response information on data received from the eNB, wherein the DTX response information for a cell, among the primary cell and the secondary cell, is based on the difference, wherein the DTX response information comprises DTX response(s) and the difference corresponds to a number of the DTX response(s); and cause the apparatus to transmit, to the eNB, the ACK/NACK information. ### Claim 8 (depends on 7) The communication apparatus of claim 7, wherein the ACK/NACK information comprises a set of bits, N bits of the set of bits are set as DTX, and N denotes the difference. ### Claim 9 (depends on 7) The communication device of claim 7, wherein one of the number of the first set of downlink subframes and the number of the second set of downlink subframes is 3 and the other is 1. ### Claim 10 (depends on 7) The communication apparatus of claim 7, wherein a UL/DL configuration of the primary cell is different from a UL/DL configuration of the secondary cell. ### Claim 11 (depends on 7) The communication apparatus of claim 7, wherein the ACK/NACK information is transmitted using the uplink subframe. ### Claim 12 (depends on 11) The communication apparatus of claim 11, wherein the ACK/NACK information is transmitted using PUCCH format 1b. ### Claim 13 A communication device for a user equipment (UE), comprising: A memory; and A processor operably coupled to the memory, wherein the processor, when executing program instructions stored in the memory, is configured to: cause the UE to receive, from an eNode-B (eNB), data using at least a part of a first set of downlink subframes on a primary cell and a second set of downlink subframes on a secondary cell, wherein the first set of downlink subframes is associated with an uplink subframe and the second set of downlink subframes is associated with the uplink subframe; determine a difference between a number of the first set of the downlink subframe and a number of the second set of downlink subframes; generate ACK/NACK information for comprising Discontinuous Transmission (DTX) response information and response information on data received from the eNB, wherein the DTX response information for a cell, among the primary cell and the secondary cell, is based on the difference, wherein the DTX response information comprises DTX response(s) and the difference corresponds to a number of the DTX response(s); and cause the UE to transmit, to the eNB, the ACK/NACK information. ### Claim 14 (depends on 13) The communication device of claim 13, wherein the ACK/NACK information comprises a set of bits, N bits of the set of bits are set as DTX, and N denotes the difference. ### Claim 15 (depends on 13) The communication device of claim 13, wherein one of the number of the first set of downlink subframes and the number of the second set of downlink subframes is 3 and the other is 1. ### Claim 16 (depends on 13) The communication device of claim 13, wherein a UL/DL configuration of the primary cell is different from a UL/DL configuration of the secondary cell. ### Claim 17 (depends on 13) The communication device of claim 13, wherein the ACK/NACK information is transmitted using the uplink subframe. ### Claim 18 (depends on 17) The communication device of claim 17, wherein the ACK/NACK information is transmitted using PUCCH format 1b.