# US 11,444,738 B2 · Method for transmitting feedback information, terminal device, and network device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,444,738 B2 - Document ID: US11444738B2 - Status: Granted - Kind: B2 - Application number: 17/221,748 - Filed: 2021-04-02 - Published: 2021-07-22 - Granted: 2022-09-13 - Earliest claimed: 2019-01-11 - Assignees: Guangdong Oppo Mobile Telecommunications Corp., Ltd. - Applicants: Guangdong Oppo Mobile Telecommunications Corp., Ltd. - Inventors: Yanan Lin; Zuomin Wu - Web page: https://patentgrep.com/patent/US11444738B2 ## CPC - H04L 5/0055: {Physical resource allocation for ACK/NACK (for physical mapping arrangements in ARQ protocols H04L1/1861)} - H04L 1/1614: {using bitmaps} - H04L 1/1685: {the supervisory signal being transmitted in response to a specific request, e.g. to a polling signal} - H04L 1/1861: {Physical mapping arrangements (for ACK signaling see also H04L5/0053)} - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) ## Abstract A method for transmitting feedback information includes receiving, by a terminal device, trigger signaling used for triggering transmission of feedback information for a plurality of downlink channel groups by the terminal device, wherein the plurality of downlink channel groups comprise a first downlink channel group and a second downlink channel group, and a group number of the first downlink channel group is smaller than a group number of the second downlink channel group; and generating, by the terminal device based on the trigger signaling, a feedback codebook comprising the feedback information for the plurality of downlink channel groups, wherein the feedback information corresponding to the second downlink channel group is appended to the feedback information corresponding to the first downlink channel group in the feedback codebook. ## Claims ### Claim 1 A method for transmitting feedback information, comprising: receiving, by a terminal device, trigger signaling used for triggering transmission of feedback information for a plurality of downlink channel groups by the terminal device, wherein the plurality of downlink channel groups comprise a first downlink channel group and a second downlink channel group, and a group number of the first downlink channel group is smaller than a group number of the second downlink channel group; and generating, by the terminal device based on the trigger signaling, a feedback codebook comprising the feedback information for the plurality of downlink channel groups, wherein the feedback information corresponding to the second downlink channel group is appended to the feedback information corresponding to the first downlink channel group in the feedback codebook. ### Claim 2 (depends on 1) The method according to claim 1, wherein each of the plurality of downlink channel groups comprises a plurality of downlink channels, and a bit position of the feedback information corresponding to each of the plurality of downlink channels comprised in each of the plurality of downlink channel groups in the feedback codebook is determined based on a value of a Downlink Assignment Index (DAI) of the downlink channel. ### Claim 3 (depends on 2) The method according to claim 2, wherein the downlink channel with a smaller value of the DAI of the plurality of downlink channels comprised in each of the plurality of downlink channel groups has a smaller bit index in the feedback codebook. ### Claim 4 (depends on 1) The method according to claim 1, wherein the trigger signaling is used for indicating a number of downlink channels comprised in each of the plurality of downlink channel groups. ### Claim 5 (depends on 1) The method according to claim 1, further comprising: determining a number of bits of the feedback information comprised in the feedback codebook by the terminal device based on a target parameter, a number of downlink channels comprised in each of the plurality of downlink channel groups, and a number of groups of the plurality of downlink channel groups, wherein a value of the target parameter is a maximum number of bits of the feedback information corresponding to each downlink channel in the plurality of downlink channel groups. ### Claim 6 (depends on 1) The method according to claim 1, wherein the plurality of downlink channel groups comprise a physical downlink shared channel and a physical downlink control channel. ### Claim 7 A terminal device, comprising: a memory; a transceiver configured to receive trigger signaling used for triggering transmission of feedback information for a plurality of downlink channel groups by the terminal device, wherein the plurality of downlink channel groups comprise a first downlink channel group and a second downlink channel group, and a group number of the first downlink channel group is smaller than a group number of the second downlink channel group; and a processor configured to generate a feedback codebook comprising the feedback information for the plurality of downlink channel groups based on the trigger signaling, wherein the feedback information corresponding to the second downlink channel group is appended to the feedback information corresponding to the first downlink channel group in the feedback codebook. ### Claim 8 (depends on 7) The terminal device according to claim 7, wherein each of the plurality of downlink channel groups comprises a plurality of downlink channels, and a bit position of the feedback information corresponding to each of the plurality of downlink channels comprised in each of the plurality of downlink channel groups in the feedback codebook is determined based on a value of a Downlink Assignment Index (DAI) of the downlink channel. ### Claim 9 (depends on 8) The terminal device according to claim 8, wherein the downlink channel with a smaller value of the DAI of the plurality of downlink channels comprised in each of the plurality of downlink channel groups has a smaller bit index in the feedback codebook. ### Claim 10 (depends on 7) The terminal device according to claim 7, wherein the trigger signaling is used for indicating a number of downlink channels comprised in each of the plurality of downlink channel groups. ### Claim 11 (depends on 7) The terminal device according to claim 7, wherein the processor is further configured to: determine a number of bits of the feedback information comprised in the feedback codebook based on a target parameter, a number of downlink channels comprised in each of the plurality of downlink channel groups, and a number of groups of the plurality of downlink channel groups, wherein a value of the target parameter is a maximum number of bits of the feedback information corresponding to each downlink channel in the plurality of downlink channel groups. ### Claim 12 (depends on 7) The terminal device according to claim 7, wherein the plurality of downlink channel groups comprise a physical downlink shared channel and a physical downlink control channel. ### Claim 13 A method for transmitting feedback information, comprising: transmitting, by a network device, trigger signaling which is used for triggering transmission of feedback information for a plurality of downlink channel groups by a terminal device and which is used by the terminal device to determine a feedback codebook, wherein the feedback codebook comprises the feedback information for the plurality of downlink channel groups, the plurality of downlink channel groups comprise a first downlink channel group and a second downlink channel group, a group number of the first downlink channel group is smaller than a group number of the second downlink channel group, and the feedback information corresponding to the second downlink channel group is appended to the feedback information corresponding to the first downlink channel group in the feedback codebook. ### Claim 14 (depends on 13) The method according to claim 13, wherein each of the plurality of downlink channel groups comprises a plurality of downlink channels, and a bit position of the feedback information corresponding to each of the plurality of downlink channels comprised in each of the plurality of downlink channel groups in the feedback codebook is determined based on a value of a Downlink Assignment Index (DAI) of the downlink channel. ### Claim 15 (depends on 14) The method according to claim 14, wherein the downlink channel with a smaller value of the DAI of the plurality of downlink channels comprised in each of the plurality of downlink channel groups has a smaller bit index in the feedback codebook. ### Claim 16 (depends on 13) The method according to claim 13, wherein the trigger signaling is used for indicating a number of downlink channels comprised in each of the plurality of downlink channel groups. ### Claim 17 (depends on 13) The method according to claim 13, wherein a number of bits of the feedback information comprised in the feedback codebook is determined by the terminal device based on a target parameter, a number of downlink channels comprised in each of the plurality of downlink channel groups, and a number of groups of the plurality of downlink channel groups, wherein a value of the target parameter is a maximum number of bits of the feedback information corresponding to each downlink channel in the plurality of downlink channel groups. ### Claim 18 (depends on 13) The method according to claim 13, wherein the plurality of downlink channel groups comprise a physical downlink shared channel and a physical downlink control channel.