# US 2026/0100748 A1 · Retransmission schemes for user equipment-initiated and event-driven beam reporting > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2026/0100748 A1 - Document ID: US20260100748A1 - Status: Published application - Kind: A1 - Application number: 19/339,907 - Filed: 2025-09-25 - Published: 2026-04-09 - Earliest claimed: 2024-10-04 - Assignees: Samsung Electronics Co., Ltd. - Applicants: Samsung Electronics Co., Ltd. - Inventors: Hoda SHAHMOHAMMADIAN; Jung Hyun BAE - Web page: https://patentgrep.com/patent/US20260100748A1 ## CPC - H04B 7/06952: {Selecting one or more beams from a plurality of beams, e.g. beam training, management or sweeping} - H04B 7/06964: {Re-selection of one or more beams after beam failure} - H04B 7/0623: {Auxiliary parameters, e.g. power control [PCB] or not acknowledged commands [NACK], used as feedback information} - H04B 7/0632: {Channel quality parameters, e.g. channel quality indicator [CQI]} - H04L 5/0055: {Physical resource allocation for ACK/NACK (for physical mapping arrangements in ARQ protocols H04L1/1861)} - H04W 72/115: Grant-free or autonomous transmission - H04W 72/232: the control data signalling from the physical layer, e.g. DCI signalling - H04B: TRANSMISSION - 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 A system and a method are disclosed for beam reporting. The system can include a user equipment (UE) comprising a radio and a processing circuit, and configured to: perform a UE-initiated beam reporting procedure comprising: transmitting, via the radio, a beam reporting indication message in a first channel to initiate beam reporting; and transmitting, via the radio, a beam report in a second channel; infer a communication failure of the UE-initiated beam reporting procedure; and in response to inferring the communication failure of the UE-initiated beam reporting procedure, retransmit at least one of the beam reporting indication message in the first channel or the beam report in the second channel. ## Claims ### Claim 1 A user equipment (UE) comprising: a radio; and a processing circuit; and configured to: perform a UE-initiated beam reporting procedure comprising: transmitting, via the radio, a beam reporting indication message in a first channel to initiate beam reporting; and transmitting, via the radio, a beam report in a second channel; infer a communication failure of the UE-initiated beam reporting procedure; and in response to inferring the communication failure of the UE-initiated beam reporting procedure, retransmit at least one of the beam reporting indication message in the first channel or the beam report in the second channel. ### Claim 2 (depends on 1) The UE of claim 1, wherein to infer the communication failure comprises to recognize the communication failure based on a base station non-acknowledgement (NACK) response received by the radio. ### Claim 3 (depends on 1) The UE of claim 1, wherein to infer the communication failure is based on: downlink (DL) control information (DCI) received by the radio; or DCI expected and unreceived by the radio. ### Claim 4 (depends on 1) The UE of claim 1, wherein to infer the communication failure is based on one or more of: an update expected and unreceived by the radio; a dynamic grant; or a configured grant resource reallocated by a base station. ### Claim 5 (depends on 1) The UE of claim 1, wherein to infer the communication failure is based on assessed channel quality information. ### Claim 6 (depends on 5) The UE of claim 5, wherein the UE is further configured to implement: a prohibit counter implemented to prevent more than a predetermined maximum number of retransmissions; or a prohibit timer implemented to require a predetermined time interval between retransmissions. ### Claim 7 (depends on 1) The UE of claim 1, wherein to retransmit the beam reporting indication message in the first channel or the beam report in the second channel comprises to: repeat, by the radio, the transmission of the beam report in the second channel; or update the beam report and transmit, by the radio, the updated beam report in the second channel. ### Claim 8 (depends on 1) The UE of claim 1, wherein: the first channel comprises a number M of first channels or first uplink (UL) resources; or the second channel comprises a number M of second channels or second UL resources. ### Claim 9 (depends on 1) The UE of claim 1, wherein: the first channel is a first uplink (UL) channel; and the second channel is a second UL channel. ### Claim 10 (depends on 1) The UE of claim 1, wherein: responsive to the UE operating in a Mode A, the beam reporting indication message in the first channel comprises an uplink (UL) resource request; and responsive to the UE operating in a Mode B, the beam reporting indication message in the first channel comprises a notification of the beam report to be transmitted in the second channel. ### Claim 11 A method of user equipment (UE)-initiated beam reporting, the method comprising: performing, by a UE, a UE-initiated beam reporting procedure comprising: transmitting, via a radio, a beam reporting indication message in a first channel to initiate beam reporting; transmitting, via the radio, a beam report in a second channel; inferring a communication failure of the UE-initiated beam reporting procedure; and in response to inferring the communication failure of the UE-initiated beam reporting procedure, retransmitting, by the UE, at least one of the beam reporting indication message in the first channel or the beam report in the second channel. ### Claim 12 (depends on 11) The method of claim 11, wherein inferring the communication failure comprises recognizing the communication failure based on receiving, via the radio, a base station non-acknowledgement (NACK) response. ### Claim 13 (depends on 11) The method of claim 11, wherein inferring the communication failure is based on: receiving, via the radio, downlink (DL) control information (DCI); or not receiving, via the radio, expected DCI. ### Claim 14 (depends on 11) The method of claim 11, wherein inferring the communication failure is based on one or more of: not receiving, via the radio, an expected update; receiving a dynamic grant; or determining that a configured grant resource has been reallocated by a base station. ### Claim 15 (depends on 11) The method of claim 11, wherein inferring the communication failure is based on assessing channel quality information. ### Claim 16 (depends on 11) The method of claim 11, further comprising: implementing a prohibit counter to prevent more than a predetermined maximum number of retransmissions; or implementing a prohibit timer to require a predetermined time interval between retransmissions. ### Claim 17 (depends on 11) The method of claim 11, wherein retransmitting the beam reporting indication message in the first channel or the beam report in the second channel comprises: repeating, via the radio, the transmission of the beam report in the second channel; or updating the beam report and transmitting, via the radio, the updated beam report in the second channel. ### Claim 18 (depends on 11) The method of claim 11, wherein: the first channel comprises a number M of first channels or first uplink (UL) resources; or the second channel comprises a number M of second channels or second UL resources. ### Claim 19 (depends on 11) The method of claim 11, wherein: the first channel is a first uplink (UL) channel; and the second channel is a second UL channel. ### Claim 20 (depends on 11) The method of claim 11, wherein: responsive to the UE operating in a Mode A, the beam reporting indication message in the first channel comprises an uplink (UL) resource request; and responsive to the UE operating in a Mode B, the beam reporting indication message in the first channel comprises a notification that the beam report will be transmitted in the second channel.