# US 10,374,679 B2 · Dynamic overriding of control beam monitoring configuration > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,374,679 B2 - Document ID: US10374679B2 - Status: Granted - Kind: B2 - Application number: 15/912,144 - Filed: 2018-03-05 - Published: 2018-10-04 - Granted: 2019-08-06 - Earliest claimed: 2017-03-31 - Assignees: QUALCOMM Incorporated - Applicants: QUALCOMM Incorporated - Inventors: Makesh Pravin John Wilson; Tao Luo; Jing Sun; Andrei Dragos Radulescu; Aleksandar Damnjanovic; Arumugam Chendamarai Kannan - Web page: https://patentgrep.com/patent/US10374679B2 ## CPC - H04B 7/0632: {Channel quality parameters, e.g. channel quality indicator [CQI]} - H04B 7/0617: {for beam forming} - H04B 7/0626: {Channel coefficients, e.g. channel state information [CSI]} - H04B 7/063: {Parameters other than those covered in groups H04B7/0623 - H04B7/0634, e.g. channel matrix rank or transmit mode selection} - H04B: TRANSMISSION ## Abstract Methods, systems, and devices for wireless communication are described that support overriding a beam monitoring pattern for control channel transmissions based on channel conditions between a user equipment and a base station. A base station may select a beam monitoring pattern for transmitting control channel transmissions, which may include a pattern in which two or more beams are used for control channel transmissions. In the event that a first beam of the beams used in the beam monitoring pattern meets certain metrics, the use of one or more additional beams according to the beam monitoring pattern may be overridden and transmissions continued using the first beam. The metrics for continuing use of the first beam may include channel quality metrics, a number of consecutive successful transmissions using the first beam, one or more other metrics, or any combination thereof. ## Claims ### Claim 1 A method for wireless communication, comprising: identifying a first beam monitoring pattern for transmitting control channel transmissions, the first beam monitoring pattern indicating that the control channel transmissions are to be transmitted using a first subset of transmission beams in a first subset of time periods and that the control channel transmissions are to be transmitted using a second subset of transmission beams in a second subset of time periods; transmitting the control channel transmissions during the first subset of time periods using the first subset of transmission beams; determining, during the first subset of time periods, that the transmitted first subset of transmission beams exceeds a reliability threshold; and continuing transmissions using the first subset of transmission beams for at least a portion of the second subset of time periods responsive to the determining. ### Claim 2 (depends on 1) The method of claim 1, further comprising: transmitting an indication to a user equipment (UE) that indicates the first subset of transmission beams is to be used for at least the portion of the second subset of time periods. ### Claim 3 (depends on 2) The method of claim 2, wherein the indication indicates that the first subset of transmission beams is to be used for both the first subset and the second subset of time periods for an identified time duration. ### Claim 4 (depends on 3) The method of claim 3, wherein the identified time duration is indicated with the indication or is preconfigured. ### Claim 5 (depends on 3) The method of claim 3, wherein the indication is transmitted in a medium access control (MAC) control element (CE) or in downlink control information (DCI) included with the control channel transmissions, wherein the method further comprises: receiving an acknowledgement from the UE of the indication. ### Claim 6 (depends on 1) The method of claim 1, wherein the first beam monitoring pattern maps the first subset of transmission beams to a first number of slots in the first subset of time periods and the second subset of transmission beams to a second number of slots in the second subset of time periods. ### Claim 7 (depends on 1) The method of claim 1, wherein the determining comprises: determining that a predetermined number of acknowledgments are received during the first subset of time periods; determining that a signal quality of the first subset of transmission beams exceeds a signal quality threshold; or any combination thereof. ### Claim 8 (depends on 1) The method of claim 1, wherein the determining comprises: receiving an indication from a user equipment (UE) that the transmitted first subset of transmission beams exceeds the reliability threshold; and acknowledging receipt of the indication. ### Claim 9 (depends on 8) The method of claim 8, wherein the indication is received in a medium access control (MAC) control element (CE) or in uplink control information (UCI) received from the UE. ### Claim 10 (depends on 1) The method of claim 1, further comprising: configuring a UE to determine, during the first subset of time periods, whether the transmitted first subset of transmission beams exceeds the reliability threshold, and to continue using the first subset of transmission beams for at least the portion of the second subset of time periods based on the determination, and wherein the continuing transmissions using the first subset of transmission beams is performed autonomously at the UE and at a base station. ### Claim 11 (depends on 10) The method of claim 10, wherein the configuring comprises: configuring the UE with a same set of metrics as the base station for determining to continue using the first subset of transmission beams for at least the portion of the second subset of time periods. ### Claim 12 (depends on 1) The method of claim 1, wherein the continuing transmissions using the first subset of transmission beams comprises: continuing transmissions using the first subset of transmission beams for an identified time duration; and resuming the first beam monitoring pattern after an expiration of the identified time duration. ### Claim 13 (depends on 12) The method of claim 12, wherein the continuing transmissions using the first subset of transmission beams further comprises: determining, prior to the expiration of the identified time duration, that the transmitted first subset of transmission beams continue to exceed the reliability threshold; and continuing transmissions using the first subset of transmission beams for another of the identified time duration. ### Claim 14 (depends on 1) The method of claim 1, further comprising: determining, during the first subset of time periods, that the transmitted first subset of transmission beams does not exceed a reliability threshold; identifying a second beam monitoring pattern for transmitting control channel transmissions, the second beam monitoring pattern indicating that the control channel transmissions are to be transmitted using a third subset of transmission beams in a third subset of time periods and that the control channel transmissions are to be transmitted using a fourth subset of transmission beams in a fourth subset of time periods; and overriding the first beam monitoring pattern with the second beam monitoring pattern. ### Claim 15 An apparatus for wireless communication, comprising: a processor; memory in electronic communication with the processor; and instructions stored in the memory and operable, when executed by the processor, to cause the apparatus to: identify a first beam monitoring pattern for transmitting control channel transmissions, the first beam monitoring pattern indicating that the control channel transmissions are to be transmitted using a first subset of transmission beams in a first subset of time periods and that the control channel transmissions are to be transmitted using a second subset of transmission beams in a second subset of time periods; transmit the control channel transmissions during the first subset of time periods using the first subset of transmission beams; determine, during the first subset of time periods, that the transmitted first subset of transmission beams exceeds a reliability threshold; and continue transmissions using the first subset of transmission beams for at least a portion of the second subset of time periods responsive to the determining. ### Claim 16 (depends on 15) The apparatus of claim 15, wherein the instructions stored in the memory and operable, when executed by the processor, further cause the apparatus to: transmit an indication to a user equipment (UE) that indicates the first subset of transmission beams is to be used for at least the portion of the second subset of time periods. ### Claim 17 A method for wireless communication, comprising: identifying a beam monitoring pattern for monitoring control channel transmissions on transmission beams from a base station, the beam monitoring pattern indicating that the control channel transmissions are to be transmitted using a first subset of transmission beams in a first subset of time periods and that the control channel transmissions are to be transmitted using a second subset of transmission beams in a second subset of time periods; receiving the control channel transmissions during the first subset of time periods over the first subset of transmission beams; determining, during the first subset of time periods, that the transmitted first subset of transmission beams exceeds a reliability threshold; and continuing receiving the control channel transmissions using the first subset of transmission beams for at least a portion of the second subset of time periods responsive to the determining. ### Claim 18 (depends on 17) The method of claim 17, wherein the determining comprises: receiving an indication from the base station that indicates the first subset of transmission beams is to be used for at least the portion of the second subset of time periods. ### Claim 19 (depends on 18) The method of claim 18, wherein the indication indicates that the first subset of transmission beams is to be used for both the first subset and the second subset of time periods for an identified time duration. ### Claim 20 (depends on 19) The method of claim 19, wherein the identified time duration is indicated with the indication or is preconfigured. ### Claim 21 (depends on 19) The method of claim 19, wherein the indication is received in a medium access control (MAC) control element (CE) or in downlink control information (DCI) included with the control channel transmissions, and wherein the method further comprises: transmitting an acknowledgement of the indication to the base station. ### Claim 22 (depends on 17) The method of claim 17, wherein the determining comprises: determining that a predetermined number of acknowledgments are received during the first subset of time periods; determining that a signal quality of the first subset of transmission beams exceeds a signal quality threshold; or any combination thereof. ### Claim 23 (depends on 17) The method of claim 17, wherein the determining comprises: transmitting an indication to the base station that the transmitted first subset of transmission beams exceeds the reliability threshold; and receiving an acknowledgment of receipt of the indication, and wherein the continuing receiving the control channel transmissions using the first subset of transmission beams is performed responsive to receiving the acknowledgment. ### Claim 24 (depends on 23) The method of claim 23, wherein the indication is transmitted in a medium access control (MAC) control element (CE) or in uplink control information (UCI). ### Claim 25 (depends on 17) The method of claim 17, further comprising: receiving, from the base station, configuration information to determine, during the first subset of time periods, whether the transmitted first subset of transmission beams exceeds the reliability threshold, and to continue using the first subset of transmission beams for at least the portion of the second subset of time periods based on the determination, and wherein the continuing receiving the control channel transmissions using the first subset of transmission beams is performed autonomously at the base station and at a UE. ### Claim 26 (depends on 17) The method of claim 17, wherein the continuing receiving the control channel transmissions using the first subset of transmission beams comprises: continuing receiving the control channel transmissions using the first subset of transmission beams for an identified time duration; and resuming the beam monitoring pattern after an expiration of the identified time duration. ### Claim 27 (depends on 26) The method of claim 26, wherein the continuing receiving the control channel transmissions using the first subset of transmission beams further comprises: determining, prior to the expiration of the identified time duration, that the transmitted first subset of transmission beams continue to exceed the reliability threshold; and continuing receiving the control channel transmissions using the first subset of transmission beams for another of the identified time duration. ### Claim 28 (depends on 17) The method of claim 17, further comprising: determining, during the first subset of time periods, that the transmitted first subset of transmission beams does not exceed a reliability threshold; identifying a second beam monitoring pattern for transmitting control channel transmissions, the second beam monitoring pattern indicating that the control channel transmissions are to be transmitted using a third subset of transmission beams in a third subset of time periods and that the control channel transmissions are to be transmitted using a fourth subset of transmission beams in a fourth subset of time periods; and overriding the beam monitoring pattern with the second beam monitoring pattern. ### Claim 29 An apparatus for wireless communication, comprising: a processor; memory in electronic communication with the processor; and instructions stored in the memory and operable, when executed by the processor, to cause the apparatus to: identify a beam monitoring pattern for monitoring control channel transmissions on transmission beams from a base station, the beam monitoring pattern indicating that the control channel transmissions are to be transmitted using a first subset of transmission beams in a first subset of time periods and that the control channel transmissions are to be transmitted using a second subset of transmission beams in a second subset of time periods; receive the control channel transmissions during the first subset of time periods over the first subset of transmission beams; determine, during the first subset of time periods, that the transmitted first subset of transmission beams exceeds a reliability threshold; and continue receiving the control channel transmissions using the first subset of transmission beams for at least a portion of the second subset of time periods responsive to the determining. ### Claim 30 (depends on 29) The apparatus of claim 29, wherein the instructions stored in the memory and operable, when executed by the processor, further cause the apparatus to: receive an indication from the base station that indicates the first subset of transmission beams is to be used for at least the portion of the second subset of time periods.