# US 11,445,514 B2 · Beam determination prior to beam activation indication > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,445,514 B2 - Document ID: US11445514B2 - Status: Granted - Kind: B2 - Application number: 16/947,825 - Filed: 2020-08-19 - Published: 2021-02-25 - Granted: 2022-09-13 - Earliest claimed: 2019-08-23 - Assignees: QUALCOMM Incorporated - Applicants: QUALCOMM Incorporated - Inventors: Yan Zhou; Tao Luo; Chun-Hao Hsu; Ruhua He - Web page: https://patentgrep.com/patent/US11445514B2 ## CPC - H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal - H04B 7/0617: {for beam forming} - H04B 17/336: Signal-to-interference ratio [SIR] or carrier-to-interference ratio [CIR] - H04W 24/10: Scheduling measurement reports {; Arrangements for measurement reports} - H04W 56/001: {Synchronization between nodes} - H04W 72/0446: Resources in time domain, e.g. slots or frames - H04W 72/046: {the resource being in the space domain, e.g. beams} - H04W 72/1273: of downlink data flows - H04W 72/53: based on regulatory allocation policies - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - H04B: TRANSMISSION ## Abstract Various aspects of the present disclosure generally relate to systems, apparatuses, and methods for beam determination prior to an indication of an activated beam. A user equipment may receive a configuration for one or more transmission configuration indicator (TCI) states; receive downlink control information that schedules a downlink transmission after a time offset; determine, prior to receiving an indication of an activated TCI state of the one or more TCI states, a beam for receiving the downlink transmission; and receive the downlink transmission using the beam. Numerous other aspects are provided. ## Claims ### Claim 1 A user equipment (UE) for wireless communication, comprising: a memory; and one or more processors operatively coupled to the memory, the one or more processors configured to: receive a configuration for one or more transmission configuration indicator (TCI) states; receive downlink control information, that schedules a downlink transmission after a time offset, in a control resource set; prior to receiving an indication of an activated TCI state of the one or more TCI states, determine a beam for receiving the downlink transmission, according to an initial access procedure or the control resource set, based at least in part on at least one of: whether the time offset satisfies a threshold value, or whether a TCI indication for the control resource set is enabled in the downlink control information; and receive the downlink transmission using the beam. ### Claim 2 (depends on 1) The UE of claim 1, wherein the downlink transmission is carried in a physical downlink shared channel for data. ### Claim 3 (depends on 1) The UE of claim 1, wherein the time offset is an interval between a first time when the downlink control information that schedules the downlink transmission is received and a second time when the downlink transmission is scheduled. ### Claim 4 (depends on 1) The UE of claim 1, wherein the time offset is greater than the threshold value and the TCI indication in the downlink control information is not enabled, and wherein the beam that is determined corresponds to a beam used to receive a synchronization signal block in the initial access procedure. ### Claim 5 (depends on 1) The UE of claim 1, wherein the time offset is greater than the threshold value and the TCI indication in the downlink control information is enabled, and wherein the beam that is determined corresponds to a beam used to receive a synchronization signal block in the initial access procedure. ### Claim 6 (depends on 1) The UE of claim 1, wherein the time offset is greater than the threshold value and the TCI indication in the downlink control information is enabled, and wherein the beam that is determined corresponds to a beam used to monitor the control resource set. ### Claim 7 (depends on 1) The UE of claim 1, wherein the time offset is less than the threshold value, and wherein the beam that is determined corresponds to a beam used to receive a synchronization signal block in the initial access procedure. ### Claim 8 (depends on 1) The UE of claim 1, wherein the one or more processors are further configured to receive the indication of the activated TCI state in a case where the downlink control information that schedules the downlink transmission is carried in the control resource set for which the TCI indication in the downlink control information is not enabled, and receive the indication of the activated TCI state in a case where the downlink control information that schedules the downlink transmission is carried in the control resource set for which the TCI indication in the downlink control information is enabled. ### Claim 9 (depends on 8) The UE of claim 8, wherein the indication of the activated TCI state is received with another indication of another activated TCI state for receiving a control transmission, and wherein the activated TCI state corresponds to the other activated TCI state. ### Claim 10 A base station for wireless communication, comprising: a memory; and one or more processors operatively coupled to the memory, the one or more processors configured to: transmit, to a user equipment (UE), a configuration for one or more transmission configuration indicator (TCI) states; transmit, to the UE and in a control resource set, downlink control information that schedules a downlink transmission after a time offset; prior to transmitting an indication of an activated TCI state of the one or more TCI states to the UE, determine a beam for transmitting the downlink transmission, according to an initial access procedure or the control resource set, based at least in part on at least one of: whether the time offset satisfies a threshold value, or whether a TCI indication for the control resource set is enabled in the downlink control information; and transmit, to the UE, the downlink transmission using the beam. ### Claim 11 (depends on 10) The base station of claim 10, wherein the downlink transmission is carried in a physical downlink shared channel for data. ### Claim 12 (depends on 10) The base station of claim 10, wherein the time offset is an interval between a first time when the downlink control information that schedules the downlink transmission is received by the UE and a second time when the downlink transmission is scheduled. ### Claim 13 (depends on 10) The base station of claim 10, wherein the time offset is greater than the threshold value and the TCI indication in the downlink control information is not enabled, and wherein the beam that is determined corresponds to a beam used to transmit a synchronization signal block in the initial access procedure. ### Claim 14 (depends on 10) The base station of claim 10, wherein the time offset is greater than the threshold value and the TCI indication in the downlink control information is enabled, and wherein the beam that is determined corresponds to a beam used to transmit a synchronization signal block in the initial access procedure. ### Claim 15 (depends on 10) The base station of claim 10, wherein the time offset is greater than the threshold value and the TCI indication in the downlink control information is enabled, and wherein the beam that is determined corresponds to a beam used to transmit the downlink control information. ### Claim 16 (depends on 10) The base station of claim 10, wherein the time offset is less than the threshold value, and wherein the beam that is determined corresponds to a selected beam used to transmit a synchronization signal block in the initial access procedure. ### Claim 17 (depends on 10) The base station of claim 10, wherein the one or more processors are further configured to transmit the indication of the activated TCI state in a case where the downlink control information that schedules the downlink transmission is carried in the control resource set for which the TCI indication in the downlink control information is not enabled, and transmit the indication of the activated TCI state in a case where the downlink control information that schedules the downlink transmission is carried in the control resource set for which the TCI indication in the downlink control information is enabled. ### Claim 18 (depends on 17) The base station of claim 17, wherein the indication of the activated TCI state is transmitted with another indication of another activated TCI state for a control transmission, and wherein the activated TCI state corresponds to the other activated TCI state. ### Claim 19 A method of wireless communication performed by a user equipment (UE), comprising: receiving a configuration for one or more transmission configuration indicator (TCI) states; receiving downlink control information, that schedules a downlink transmission after a time offset, in a control resource set; prior to receiving an indication of an activated TCI state of the one or more TCI states, determining a beam for receiving the downlink transmission, according to an initial access procedure or the control resource set, based at least in part on at least one of: whether the time offset satisfies a threshold value, or whether a TCI indication for the control resource set is enabled in the downlink control; and receiving the downlink transmission using the beam. ### Claim 20 (depends on 19) The method of claim 19, wherein the downlink transmission is carried in a physical downlink shared channel for data. ### Claim 21 (depends on 19) The method of claim 19, wherein the time offset is an interval between a first time when the downlink control information that schedules the downlink transmission is received and a second time when the downlink transmission is scheduled. ### Claim 22 (depends on 19) The method of claim 19, wherein the time offset is greater than the threshold value and the TCI indication in the downlink control information is enabled, and wherein the beam that is determined corresponds to a beam used to receive a synchronization signal block in the initial access procedure. ### Claim 23 (depends on 19) The method of claim 19, further comprising receiving the indication of the activated TCI state in a case where the downlink control information that schedules the downlink transmission is carried in the control resource set for which the TCI indication in the downlink control information is not enabled, and receiving the indication of the activated TCI state in a case where the downlink control information that schedules the downlink transmission is carried in the control resource set for which the TCI indication in the downlink control information is enabled. ### Claim 24 (depends on 23) The method of claim 23, wherein the indication of the activated TCI state is received with another indication of another activated TCI state for receiving a control transmission, and wherein the activated TCI state corresponds to the other activated TCI state. ### Claim 25 A method of wireless communication performed by a base station, comprising: transmitting, to a user equipment (UE), a configuration for one or more transmission configuration indicator (TCI) states; transmitting, to the UE and in a control resource set, downlink control information that schedules a downlink transmission after a time offset; prior to transmitting an indication of an activated TCI state of the one or more TCI states to the UE, determining a beam for transmitting the downlink transmission, according to an initial access procedure or the control resource set, based at least in part on at least one of; whether the time offset satisfies a threshold value, or whether a TCI indication for the control resource set is enabled in the downlink control information; and transmitting, to the UE, the downlink transmission using the beam. ### Claim 26 (depends on 25) The method of claim 25, wherein the downlink transmission is carried in a physical downlink shared channel for data. ### Claim 27 (depends on 25) The method of claim 25, wherein the time offset is an interval between a first time when the downlink control information that schedules the downlink transmission is received by the UE and a second time when the downlink transmission is scheduled. ### Claim 28 (depends on 25) The method of claim 25, wherein the time offset is greater than the threshold value and the TCI indication in the downlink control information is enabled, and wherein the beam that is determined corresponds to a beam used to transmit a synchronization signal block in the initial access procedure. ### Claim 29 (depends on 25) The method of claim 25, further comprising transmitting the indication of the activated TCI state in a case where the downlink control information that schedules the downlink transmission is carried in the control resource set for which the TCI indication in the downlink control information is not enabled, and transmitting the indication of the activated TCI state in a case where the downlink control information that schedules the downlink transmission is carried in the control resource set for which the TCI indication in the downlink control information is enabled. ### Claim 30 (depends on 29) The method of claim 29, wherein the indication of the activated TCI state is transmitted with another indication of another activated TCI state for a control transmission, and wherein the activated TCI state corresponds to the other activated TCI state. ### Claim 31 A method of wireless communication performed by a user equipment (UE), comprising: determining respective signal-to-interference-plus-noise ratio (SINR) measurements for a group of beams; and transmitting, based at least in part on a receiving a reporting configuration associated with reporting the SINR measurements for the group of beams, a measurement report for the group of beams that identifies the respective SINR measurements. ### Claim 32 (depends on 31) The method of claim 31, wherein the measurement report identifies a value of a largest SINR measurement, of the respective SINR measurements, and respective differential values, relative to the value of the largest SINR measurement, for a remainder of the respective SINR measurements. ### Claim 33 (depends on 31) The method of claim 31, wherein the measurement report identifies a value for each of the respective SINR measurements. ### Claim 34 (depends on 31) The method of claim 31, wherein the UE is to perform simultaneous transmission or reception of multiple communications using the group of beams. ### Claim 35 A user equipment (UE) for wireless communication, comprising: a memory; and one or more processors coupled to the memory, the one or more processors configured to: determine respective signal-to-interference-plus-noise ratio (SINR) measurements for a group of beams; and transmit, based at least in part on a receiving a reporting configuration associated with reporting the SINR measurements for the group of beams, a measurement report for the group of beams that identifies the respective SINR measurements. ### Claim 36 (depends on 35) The UE of claim 35, wherein the measurement report identifies a value of a largest SINR measurement, of the respective SINR measurements, and respective differential values, relative to the value of the largest SINR measurement, for a remainder of the respective SINR measurements. ### Claim 37 (depends on 35) The UE of claim 35, wherein the measurement report identifies a value for each of the respective SINR measurements. ### Claim 38 (depends on 35) The UE of claim 35, wherein the UE is to perform simultaneous transmission or reception of multiple communications using the group of beams. ### Claim 39 A non-transitory computer-readable medium storing one or more instructions for wireless communication, the one or more instructions comprising: one or more instructions that, when executed by one or more processors of a user equipment (UE), cause the one or more processors to: determine respective signal-to-interference-plus-noise ratio (SINR) measurements for a group of beams; and transmit, based at least in part on a receiving a reporting configuration associated with reporting the SINR measurements for the group of beams, a measurement report for the group of beams that identifies the respective SINR measurements. ### Claim 40 (depends on 39) The non-transitory computer-readable medium of claim 39, wherein the measurement report identifies a value of a largest SINR measurement, of the respective SINR measurements, and respective differential values, relative to the value of the largest SINR measurement, for a remainder of the respective SINR measurements. ### Claim 41 (depends on 39) The non-transitory computer-readable medium of claim 39, wherein the measurement report identifies a value for each of the respective SINR measurements. ### Claim 42 (depends on 39) The non-transitory computer-readable medium of claim 39, wherein the UE is to perform simultaneous transmission or reception of multiple communications using the group of beams. ### Claim 43 An apparatus for wireless communication, comprising: means for determining respective signal-to-interference-plus-noise ratio (SINR) measurements for a group of beams; and means for transmitting, based at least in part on a receiving a reporting configuration associated with reporting the SINR measurements for the group of beams, a measurement report for the group of beams that identifies the respective SINR measurements. ### Claim 44 (depends on 43) The apparatus of claim 43, wherein the measurement report identifies a value of a largest SINR measurement, of the respective SINR measurements, and respective differential values, relative to the value of the largest SINR measurement, for a remainder of the respective SINR measurements. ### Claim 45 (depends on 43) The apparatus of claim 43, wherein the measurement report identifies a value for each of the respective SINR measurements. ### Claim 46 (depends on 43) The apparatus of claim 43, wherein the apparatus is to perform simultaneous transmission or reception of multiple communications using the group of beams.