# US 11,445,482 B2 · Method and device used in wireless communication nodes > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,445,482 B2 - Document ID: US11445482B2 - Status: Granted - Kind: B2 - Application number: 17/078,116 - Filed: 2020-10-23 - Published: 2021-02-11 - Granted: 2022-09-13 - Earliest claimed: 2018-09-10 - Assignees: Shanghai Langbo Communication Technology Company Limited - Applicants: Xiaobo Zhang; Lin Yang - Inventors: Xiaobo Zhang; Lin Yang - Web page: https://patentgrep.com/patent/US11445482B2 ## CPC - H04L 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals} - H04W 72/04: Wireless resource allocation - H04L 1/18: Automatic repetition systems, e.g. Van Duuren systems - H04L 5/0007: {the frequencies being orthogonal, e.g. OFDM(A) or DMT} - H04L 5/0092: {Indication of how the channel is divided} - H04W 4/06: Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services - H04W 4/40: for vehicles, e.g. vehicle-to-pedestrians [V2P] - H04L 2001/0097: {Relays} - H04W 4/70: Services for machine-to-machine communication [M2M] or machine type communication [MTC] - H04W 16/14: Spectrum sharing arrangements {between different networks} - 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 The present disclosure provides a method and device used in wireless communication nodes. A first node receives a first radio signal; and transmits a first-type signaling on a first radio resource, the first-type signaling being used for indicating that the first radio signal is correctly received; or, transmits a second-type signaling on a second radio resource, the second-type signaling being used for indicating that the first radio signal is not correctly received; herein, time-domain resources occupied by the first radio resource and time-domain resource occupied by the second radio resources are orthogonal. Under Groupcast communication mode, the present disclosure transmits a retransmission signal to a UE that not correctly receives a radio signal through a UE that correctly receives a radio signal in the group, so as to achieve the purpose of improving signal received quality and resource utilization efficiency. ## Claims ### Claim 1 A method in a first node for wireless communications, comprising: receiving a first radio signal; and transmitting a first-type signaling on a first radio resource, the first-type signaling being used for indicating that the first radio signal is correctly received; or, transmitting a second-type signaling on a second radio resource, the second-type signaling being used for indicating that the first radio signal is not correctly received; wherein time-domain resources occupied by the first radio resource and time-domain resources occupied by the second radio resource are orthogonal. ### Claim 2 (depends on 1) The method according to claim 1, comprising: monitoring a second-type signaling on the second radio resource; and the second-type signaling being detected, transmitting a second radio signal on a third radio resource; or, the second-type signaling not being detected, dropping transmission of a second radio signal on the third radio resource; wherein the first node transmits the first-type signaling on the first radio resource, a first bit block is used for generating the first radio signal, and the first bit block is used for generating the second radio signal; the first-type signaling transmitted by the first node is used for indicating the third radio resource; or, monitoring a first-type signaling on the first radio resource; and receiving a third radio signal on a fourth radio resource; wherein the first node transmits the second-type signaling on the second radio resource, a first bit block is used for generating the first radio signal, and the first bit block is used for generating the third radio signal; the second-type signaling transmitted by the first node is used for indicating the fourth radio resource. ### Claim 3 (depends on 1) The method according to claim 1, wherein the second-type signaling comprises a first signature sequence. ### Claim 4 A method in a second node for wireless communications, comprising: transmitting a first radio signal; and monitoring a first-type signaling on a first radio resource, or, monitoring a second-type signaling on a second radio resource; wherein the first-type signaling is used for indicating that the first radio signal is correctly received, and the second-type signaling is used for indicating that the first radio signal is not correctly received; time-domain resources occupied by the first radio resource and time-domain resources occupied by the second radio resource are orthogonal. ### Claim 5 (depends on 4) The method according to claim 4, comprising: the second-type signaling being detected, transmitting a fourth radio signal on a fifth radio resource; or, the second-type signaling not being detected, dropping transmission of a fourth radio signal on the fifth radio resource; wherein a first bit block is used for generating the first radio signal, and the first bit block is used for generating the third radio signal; the first radio signal comprises first control information, the first control information indicating the fifth radio resource. ### Claim 6 A first node for wireless communications, comprising: a first receiver: receiving a first radio signal; and a first transmitter: transmitting a first-type signaling on a first radio resource, the first-type signaling being used for indicating that the first radio signal is correctly received; or, transmitting a second-type signaling on a second radio resource, the second-type signaling being used for indicating that the first radio signal is not correctly received; wherein time-domain resources occupied by the first radio resource and time-domain resources occupied by the second radio resource are orthogonal. ### Claim 7 (depends on 6) The first node according to claim 6, wherein the second-type signaling comprises a first signature sequence. ### Claim 8 (depends on 6) The first node according to claim 6, comprising: the first receiver, monitoring a second-type signaling on the second radio resource; and the second-type signaling being detected, the first transmitter transmitting a second radio signal on a third radio resource; or, the second-type signaling not being detected, the first transmitter dropping transmission of a second radio signal on the third radio resource; wherein the first node transmits the first-type signaling on the first radio resource, a first bit block is used for generating the first radio signal, and the first bit block is used for generating the second radio signal. ### Claim 9 (depends on 6) The first node according to claim 6, wherein the first-type signaling transmitted by the first node is used for indicating the third radio resource. ### Claim 10 (depends on 6) The first node according to claim 6, comprising: the first receiver, monitoring a first-type signaling on the first radio resource; and the first receiver, receiving a third radio signal on a fourth radio resource; wherein the first node transmits the second-type signaling on the second radio resource, a first bit block is used for generating the first radio signal, and the first bit block is used for generating the third radio signal. ### Claim 11 (depends on 10) The first node according to claim 10, wherein the second-type signaling transmitted by the first node is used for indicating the fourth radio resource. ### Claim 12 (depends on 6) The first node according to claim 6, comprising: the first receiver, detecting P candidate signalings on the first radio resource, each of the P candidate signalings indicating that the first radio signal is correctly received, and each of the P candidate signalings respectively indicating P identities, P being a positive integer greater than 1; and selecting the first-type signaling out of the P candidate signalings, and the selected first-type signaling being one of the P candidate signalings; wherein the selected first-type signaling indicates a second identity, the second-type signaling transmitted by the first node indicates a second identity, the second identity being one of the P identities. ### Claim 13 (depends on 6) The first node according to claim 6, wherein the second-type signaling transmitted by the first node comprises an identity of a transmitter of the first radio signal. ### Claim 14 A second node for wireless communications, comprising: a second transmitter: transmitting a first radio signal; and a second receiver: monitoring a first-type signaling on a first radio resource, or, monitoring a second-type signaling on a second radio resource; wherein the first-type signaling is used for indicating that the first radio signal is correctly received, and the second-type signaling is used for indicating that the first radio signal is not correctly received; time-domain resources occupied by the first radio resource and time-domain resources occupied by the second radio resource are orthogonal. ### Claim 15 (depends on 14) The second node according to claim 14, wherein the second-type signaling comprises a first signature sequence. ### Claim 16 (depends on 14) The second node according to claim 14, comprising: the second-type signaling being detected, transmitting a fourth radio signal on a fifth radio resource; or, the second-type signaling not being detected, dropping transmission of a fourth radio signal on the fifth radio resource; wherein a first bit block is used for generating the first radio signal, and the first bit block is used for generating the third radio signal. ### Claim 17 (depends on 16) The second node according to claim 16, wherein the first radio signal comprises first control information, the first control information indicating the fifth radio resource. ### Claim 18 (depends on 16) The second node according to claim 16, wherein the second-type signaling detected by the second node is used for indicating the fifth radio resource. ### Claim 19 (depends on 14) The second node according to any claim in claim 14, comprising: detecting P candidate signalings on the first radio resource, each of the P candidate signalings indicating that the first radio signal is correctly received, and each of the P candidate signalings respectively indicating P identities, P being a positive integer greater than 1; and selecting the first-type signaling out of the P candidate signalings, and the first-type signaling being one of the P candidate signalings; wherein the first-type signaling indicates a second identity, the second-type signaling monitored by the second node indicates a third identity, the third identity being one of the P identities. ### Claim 20 (depends on 14) The second node according to any claim in the claim 14, wherein the second-type signaling detected by the second node comprises an identity of the second node, and the first-type signaling is not detected on the first radio resource.