# US 11,909,486 B2 · Techniques for managing beams in multiple frequency bands > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,909,486 B2 - Document ID: US11909486B2 - Status: Granted - Kind: B2 - Application number: 17/985,032 - Filed: 2022-11-10 - Published: 2023-03-09 - Granted: 2024-02-20 - Earliest claimed: 2020-08-07 - Assignees: QUALCOMM Incorporated - Applicants: QUALCOMM Incorporated - Inventors: Muhammad Nazmul Islam; Changhwan Park; Valentin Alexandru Gheorghiu - Web page: https://patentgrep.com/patent/US11909486B2 ## CPC - H04B 7/0639: {Using selective indices, e.g. of a codebook, e.g. pre-distortion matrix index [PMI] or for beam selection} - H04B 7/06952: {Selecting one or more beams from a plurality of beams, e.g. beam training, management or sweeping} - H04L 5/0023: {Time-frequency-space} - H04L 5/0048: {Allocation of pilot signals, i.e. of signals known to the receiver (allocation of control signalling H04L5/0053; use of control signalling H04L5/0091)} - H04L 5/0055: {Physical resource allocation for ACK/NACK (for physical mapping arrangements in ARQ protocols H04L1/1861)} - H04L 5/0058: {Allocation criteria} - H04W 36/06: Reselecting a communication resource in the serving access point - 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 Aspects described herein relate to concurrently communicating with a base station over multiple frequency bands using a same first beam, and switching, according to beam switching criteria, from the first beam to a second beam during a time period, wherein the time period is based on a timing reference associated with a reference band. ## Claims ### Claim 1 An apparatus for wireless communication, comprising: a transceiver; a memory configured to store instructions; and one or more processors communicatively coupled with the memory and the transceiver, wherein the one or more processors are configured to execute the instructions to cause the apparatus to: concurrently communicate with a base station over multiple frequency bands using a same first beam; and switch, according to beam switching criteria, from the first beam to a second beam during a time period, wherein the time period is based on a timing reference associated with a reference band. ### Claim 2 (depends on 1) The apparatus of claim 1, wherein the one or more processors are configured to execute the instructions to cause the apparatus to receive, from the base station, at least one of an indication of the reference band or an indication of one or more non-reference bands of the multiple frequency bands based on which the reference band is determined. ### Claim 3 (depends on 1) The apparatus of claim 1, wherein the one or more processors are configured to execute the instructions to cause the apparatus to drop communications over symbols on one or more of the multiple frequency bands other than the reference band during at least the switch from the first beam to the second beam. ### Claim 4 (depends on 1) The apparatus of claim 1, wherein the reference band is associated with a highest signal metric of the multiple frequency bands in a most recent report, wherein the signal metric includes one or more of a reference signal received power (RSRP), a reference signal received quality (RSRQ), a signal-to-noise ratio (SNR), a signal-to-interference-and-noise ratio (SINR), or a received signal strength indicator (RSSI). ### Claim 5 (depends on 1) The apparatus of claim 1, wherein the reference band is associated with one of the multiple frequency bands having a lowest index, a center frequency, or a most frequent physical downlink control channel (PDCCH) search space. ### Claim 6 (depends on 1) The apparatus of claim 1, wherein the reference band is associated with a frequency band of the multiple frequency bands that has a first priority for one or more channels associated with the frequency band that is higher than a second priority for one or more other channels associated with one or more other frequency bands of the multiple frequency bands. ### Claim 7 (depends on 6) The apparatus of claim 6, wherein the first priority and the second priority are associated with respective channel types of the one or more channels and the one or more other channels. ### Claim 8 (depends on 6) The apparatus of claim 6, wherein the first priority and the second priority are associated with respective subcarrier spacings (SCSs) of the one or more channels and the one or more other channels. ### Claim 9 (depends on 6) The apparatus of claim 6, wherein the first priority and the second priority are associated with respective numbers of symbols in the one or more channels and the one or more other channels. ### Claim 10 (depends on 6) The apparatus of claim 6, wherein the first priority and the second priority are associated with whether the one or more channels and the one or more other channels are a beam reference. ### Claim 11 (depends on 6) The apparatus of claim 6, wherein the first priority and the second priority are associated with respective feedback for the one or more channels and the one or more other channels. ### Claim 12 (depends on 6) The apparatus of claim 6, wherein the first priority and the second priority are associated with whether each of the one or more channels and the one or more other channels are scheduled or autonomous. ### Claim 13 A method for wireless communication, comprising: concurrently communicating with a base station over multiple frequency bands using a same first beam; and switching, according to beam switching criteria, from the first beam to a second beam during a time period, wherein the time period is based on a timing reference associated with a reference band. ### Claim 14 (depends on 13) The method of claim 13, further comprising receiving, from the base station, at least one of an indication of the reference band or an indication of one or more non-reference bands of the multiple frequency bands based on which the reference band is determined. ### Claim 15 (depends on 13) The method of claim 13, further comprising dropping communications over symbols on one or more of the multiple frequency bands other than the reference band during at least the switch from the first beam to the second beam. ### Claim 16 (depends on 13) The method of claim 13, wherein the reference band is associated with a highest signal metric of the multiple frequency bands in a most recent report, wherein the signal metric includes one or more of a reference signal received power (RSRP), a reference signal received quality (RSRQ), a signal-to-noise ratio (SNR), a signal-to-interference-and-noise ratio (SINR), or a received signal strength indicator (RSSI). ### Claim 17 (depends on 13) The method of claim 13, wherein the reference band is associated with one of the multiple frequency bands having a lowest index, a center frequency, or a most frequent physical downlink control channel (PDCCH) search space. ### Claim 18 (depends on 13) The method of claim 13, wherein the reference band is associated with a frequency band of the multiple frequency bands that has a first priority for one or more channels associated with the frequency band that is higher than a second priority for one or more other channels associated with one or more other frequency bands of the multiple frequency bands. ### Claim 19 A non-transitory computer-readable medium including code executable by one or more processors for wireless communication, the code comprising code for: concurrently communicating with a base station over multiple frequency bands using a same first beam; and switching, according to beam switching criteria, from the first beam to a second beam during a time period, wherein the time period is based on a timing reference associated with a reference band. ### Claim 20 (depends on 19) The non-transitory computer-readable medium of claim 19, the code further comprising code for receiving, from the base station, at least one of an indication of the reference band or an indication of one or more non-reference bands of the multiple frequency bands based on which the reference band is determined.