# US 11,909,124 B2 · Method and apparatus for temperature-based antenna selection > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,909,124 B2 - Document ID: US11909124B2 - Status: Granted - Kind: B2 - Application number: 17/246,208 - Filed: 2021-04-30 - Published: 2022-11-03 - Granted: 2024-02-20 - Earliest claimed: 2021-04-30 - Assignees: Apple Inc. - Applicants: Apple Inc. - Inventors: Franz J. Eder; Carlo Tosetti; Kenan Kocagoez; Prashant H. Vashi; Murali Mohan Chakka; Muthukumaran Dhanapal - Web page: https://patentgrep.com/patent/US11909124B2 ## CPC - H01Q 3/24: varying the orientation by switching energy from one active radiating element to another, e.g. for beam switching - H04B 7/0608: {Antenna selection according to transmission parameters} - H01Q 1/02: Arrangements for de-icing; Arrangements for drying-out {; Arrangements for cooling; Arrangements for preventing corrosion} - H01Q 3/34: by electrical means (active lenses or reflecting arrays H01Q3/46) - H01Q 25/002: {providing at least two patterns of different beamwidth; Variable beamwidth antennas} - H04B 7/0814: {based on current reception conditions, e.g. switching to different antenna when signal level is below threshold} - H04B 17/13: of power amplifiers, e.g. gain or non-linearity - H01Q: ANTENNAS, i.e. RADIO AERIALS (radiators or antennas for microwave heating H05B6/72) - H04B: TRANSMISSION ## Abstract An electronic device having multiple antenna groups for data communication may determine a temperature of a first antenna group and determine a power gain of a second antenna group. The electronic device may communicate using the second antenna group in response to determining that the temperature of the first antenna group exceeds a temperature threshold and the power gain of the second antenna group exceeds a gain threshold. In some embodiments, the electronic device may receive communication link preferences, determine an antenna group that is disposed outside of thermal hotspots of the electronic device, and determine a beam that enables the communication link preferences via the antenna group. The electronic device may then transmit or receive data via the antenna group by forming the beam. ## Claims ### Claim 1 An electronic device comprising: a plurality of antenna groups; transmit circuitry communicatively coupled to the plurality of antenna groups; receive circuitry communicatively coupled to the plurality of antenna groups; and processing circuitry configured to communicate with a communication hub using a first antenna group of the plurality of antenna groups; determine a temperature of the first antenna group; determine a set of antenna groups of the plurality of antenna groups that each have a temperature that is less than or equal to a temperature threshold; exclude antenna groups from the set of antenna groups that have a power gain less than or equal to a gain threshold; exclude antenna groups from the set of antenna groups that have a temperature within a threshold temperature range of an additional antenna group of the set of antenna groups and have a lower power gain than the additional antenna group; select a second antenna group having a lowest temperature from a remainder of the set of antenna groups; and cause the transmit circuitry to communicate with the communication hub using the second antenna group in response to determining that the temperature of the first antenna group exceeds the temperature threshold. ### Claim 2 (depends on 1) The electronic device of claim 1, comprising one or more internal temperature sensors configured to determine an internal temperature of the electronic device, the temperature of the first antenna group being based on the internal temperature of the electronic device, and the temperature threshold being associated with the internal temperature of the electronic device. ### Claim 3 (depends on 2) The electronic device of claim 2, wherein the processing circuitry is configured to cause the transmit circuitry or the receive circuitry to form a beam to transmit data to the communication hub or receive data from the communication hub using the first antenna group, and, in response to determining that the temperature of the first antenna group exceeds the temperature threshold associated with the internal temperature of the electronic device and the power gain of the second antenna group for receiving data from the communication hub exceeds the gain threshold, cause the transmit circuitry or the receive circuitry to form the beam to transmit data to the communication hub or receive data from the communication hub using the second antenna group. ### Claim 4 (depends on 2) The electronic device of claim 2, wherein the temperature threshold is between 36 and 40 degrees Celsius. ### Claim 5 (depends on 1) The electronic device of claim 1, comprising one or more external temperature sensors configured to determine an external temperature of the electronic device, the temperature of the first antenna group being based on the external temperature of the electronic device, and the temperature threshold being associated with the external temperature of the electronic device. ### Claim 6 (depends on 1) The electronic device of claim 1, wherein, in response to determining that the temperature of the first antenna group exceeds the temperature threshold and the power gain of the second antenna group for receiving data from the communication hub exceeds the gain threshold, the processing circuitry is configured to request and receive a beam configuration from the communication hub for transmitting data to the communication hub or receiving data from the communication hub using the second antenna group. ### Claim 7 (depends on 6) The electronic device of claim 6, wherein, in response to not receiving the beam configuration from the communication hub within a threshold time, the processing circuitry is configured to cause the transmit circuitry or the receive circuitry to form a beam using a current beam configuration used by the first antenna group with the second antenna group. ### Claim 8 (depends on 6) The electronic device of claim 6 wherein the processing circuitry is configured to cause the transmit circuitry or the receive circuitry to form a beam using the beam configuration to transmit data to the communication hub or receive data from the communication hub using the second antenna group. ### Claim 9 (depends on 1) The electronic device of claim 1, wherein the temperature threshold is between 105 and 115 degrees Celsius. ### Claim 10 (depends on 1) The electronic device of claim 1, wherein the gain threshold is based on a highest power gain of the set of antenna groups. ### Claim 11 (depends on 1) The electronic device of claim 1, wherein the gain threshold is 3 decibels less than a highest power gain of the set of antenna groups. ### Claim 12 A method comprising: communicating, using at least one processor, with a communication hub using a first antenna group of a plurality of antenna groups of an electronic device; determining, using the at least one processor, a first temperature of the first antenna group and a second temperature of a second antenna group of the plurality of antenna groups; determining, using the at least one processor, that the first temperature exceeds a temperature threshold and the second temperature is less than the temperature threshold; determining, using the at least one processor, that a power gain of the second antenna group exceeds a gain threshold when forming a beam; and in response to determining that the first temperature exceeds the temperature threshold, the second temperature is less than the temperature threshold, and the power gain of the second antenna group exceeds the gain threshold when forming the beam, forming, using the at least one processor, the beam using the second antenna group. ### Claim 13 (depends on 12) The method of claim 12, wherein the power gain corresponds to a downlink wireless power gain when forming the beam. ### Claim 14 (depends on 12) The method of claim 12, comprising determining, using the at least one processor, an estimated throughput, an estimated latency, or both, to execute one or more software applications by the at least one processor, and determining, using the at least one processor, that the beam formed by using the second antenna group enables the estimated throughput, the estimated latency, or both, wherein forming, using the at least one processor, the beam using the second antenna group occurs in response to determining that the beam formed by using the second antenna group enables the estimated throughput, the estimated latency, or both. ### Claim 15 (depends on 12) The method of claim 12, comprising: forming, using the at least one processor, the beam to transmit data to the communication hub or receive data from the communication hub using the first antenna group; and forming, using the at least one processor, the beam to transmit data to the communication hub or receive data from the communication hub using the second antenna group in response to the first temperature exceeding the temperature threshold and the power gain of the second antenna group exceeding the gain threshold. ### Claim 16 A tangible, non-transitory, machine-readable medium, comprising machine-readable instructions that, when executed by at least one processor, cause at least one processor to: communicate with a communication hub using a first antenna group of a plurality of antenna groups of an electronic device; determine a first temperature of the first antenna group and a second temperature of a second antenna group of the plurality of antenna groups; determine that the first temperature exceeds a temperature threshold and the second temperature is less than the temperature threshold; determine that a power gain of the second antenna group exceeds a gain threshold when forming a beam; and in response to determining that the first temperature exceeds the temperature threshold, the second temperature is less than the temperature threshold, and the power gain of the second antenna group exceeds the gain threshold when forming the beam, form the beam using the second antenna group. ### Claim 17 (depends on 16) The tangible, non-transitory, machine-readable medium of claim 16, wherein the machine-readable instructions, when executed by the at least one processor, cause the at least one processor to determine that a downlink wireless power gain of the second antenna group exceeds a gain threshold when forming a beam. ### Claim 18 (depends on 16) The tangible, non-transitory, machine-readable medium of claim 16, wherein the machine-readable instructions, when executed by the at least one processor, cause the at least one processor to: determine an estimated throughput, an estimated latency, or both, to execute one or more software applications; and determine that the beam formed by using the second antenna group enables the estimated throughput, the estimated latency, or both, wherein forming the beam using the second antenna group occurs in response to the beam formed by using the second antenna group enabling the estimated throughput, the estimated latency, or both. ### Claim 19 (depends on 16) The tangible, non-transitory, machine-readable medium of claim 16, wherein the machine-readable instructions, when executed by the at least one processor, cause the at least one processor to form the beam to transmit data to the communication hub or receive data from the communication hub using the first antenna group, and, in response to the first temperature exceeding the temperature threshold and the power gain of the second antenna group exceeding the gain threshold, form the beam to transmit data to the communication hub or receive data from the communication hub using the second antenna group. ### Claim 20 (depends on 16) The tangible, non-transitory, machine-readable medium of claim 16, wherein the machine-readable instructions, when executed by the at least one processor, cause the at least one processor to, in response to the first temperature exceeding the temperature threshold and the power gain of the second antenna group exceeding the gain threshold, request and receive a beam configuration from the communication hub for transmitting data to the communication hub or receiving data from the communication hub using the second antenna group.