# US 12,184,365 B2 · Dynamic polarization combinations based on blockage scenarios > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,184,365 B2 - Document ID: US12184365B2 - Status: Granted - Kind: B2 - Application number: 18/328,703 - Filed: 2023-06-02 - Published: 2024-12-05 - Granted: 2024-12-31 - Earliest claimed: 2023-06-02 - Assignees: QUALCOMM Incorporated - Applicants: QUALCOMM Incorporated - Inventors: Vasanthan Raghavan; Sinan Adibelli; Mohammad Ali Tassoudji; Junyi Li - Web page: https://patentgrep.com/patent/US12184365B2 ## CPC - H04B 7/0469: {taking special antenna structures, e.g. cross polarized antennas into account} - H04B 7/10: Polarisation diversity; Directional diversity - H04B 7/0404: the mobile station comprising multiple antennas, e.g. to provide uplink diversity - H04B 7/0608: {Antenna selection according to transmission parameters} - H04B 7/0691: {using subgroups of transmit antennas} - H04B 7/0805: {with single receiver and antenna switching (H04B7/0822 takes precedence)} - H04B 7/0874: {using subgroups of receive antennas} - H04B 17/336: Signal-to-interference ratio [SIR] or carrier-to-interference ratio [CIR] - H04B: TRANSMISSION ## Abstract A dual-polarized multiple-input-multiple-output (MIMO) mobile device is provided that includes a first array of antennas and a second array of antennas. Based upon a blockage of at least one of the array of antennas being less than a blockage threshold, the mobile device operates in a default configuration in which a default polarization selection from the second array is used in combination with a fixed polarization selection from the first array to form a first MIMO layer signal and a second MIMO layer signal. Should the blockage exceed the blockage threshold and an optional performance threshold be satisfied, the mobile device may operate in a dynamic configuration in which a dynamic polarization selection from the second array is reversed as compared to the default polarization selection. ## Claims ### Claim 1 A dual-polarized multiple-input-multiple-output (MIMO) mobile device, comprising: a first array of antennas configured to receive a first co-polarized received signal and a first cross-polarized received signal; a second array of antennas configured to receive a second co-polarized received signal and a second cross-polarized received signal; a first selector configured to select between the second co-polarized received signal and the second cross-polarized received signal to provide a first selected signal; a first combiner configured to combine the first co-polarized received signal with the first selected signal to form a first MIMO layer received signal; a blockage sensor configured to detect a blockage of at least one of the first array of antennas and the second array of antennas; and a controller configured to control the first selector to select for the second co-polarized received signal responsive to the blockage being less than a blockage threshold. ### Claim 2 (depends on 1) The dual-polarized multiple-input-multiple-output (MIMO) mobile device of claim 1, wherein the controller is further configured to control the first selector to select for the second cross-polarized received signal responsive to the blockage being greater than the blockage threshold. ### Claim 3 (depends on 1) The dual-polarized multiple-input-multiple-output (MIMO) mobile device of claim 1, further comprising: a second selector configured to select between the second co-polarized received signal and the second cross-polarized received signal to provide a second selected signal; and a second combiner configured to combine the first cross-polarized received signal with the second selected signal to form a second MIMO layer signal, wherein the controller is further configured to control the second selector to select for the second cross-polarized received signal responsive to the blockage being less than the blockage threshold. ### Claim 4 (depends on 1) The dual-polarized multiple-input-multiple-output (MIMO) mobile device of claim 1, wherein the controller is further configured to control the first selector to select for the second cross-polarized received signal responsive to a combination of the blockage being greater than the blockage threshold and a performance measurement of the first MIMO layer received signal being less than a performance threshold. ### Claim 5 (depends on 4) The dual-polarized multiple-input-multiple-output (MIMO) mobile device of claim 4, wherein the performance measurement comprises a signal-to-noise ratio measurement and the performance threshold is a signal-to-noise ratio threshold. ### Claim 6 (depends on 4) The dual-polarized multiple-input-multiple-output (MIMO) mobile device of claim 4, wherein the performance measurement comprises a reference signal received power (RSRP) measurement and the performance threshold is a RSRP threshold. ### Claim 7 (depends on 4) The dual-polarized multiple-input-multiple-output (MIMO) mobile device of claim 4, wherein the performance measurement comprises a reference signal received quality (RSRQ) measurement and the performance threshold is a RSRQ threshold. ### Claim 8 (depends on 4) The dual-polarized multiple-input-multiple-output (MIMO) mobile device of claim 4, wherein the performance measurement comprises a signal-to-interference-and-noise ratio (SINR) measurement and the performance threshold is a SINR threshold. ### Claim 9 (depends on 1) The dual-polarized multiple-input-multiple-output (MIMO) mobile device of claim 1, wherein the controller is further configured to control the first selector to select for the second cross-polarized received signal responsive to a combination of the blockage being greater than the blockage threshold and a first performance measurement of the first MIMO layer received signal while the first selector selects for the second cross-polarized received signal being greater by a performance threshold than a second performance measurement of the first MIMO layer received signal while the first selector selects for the second co-polarized received signal. ### Claim 10 (depends on 9) The dual-polarized multiple-input-multiple-output (MIMO) mobile device of claim 9, wherein the controller is further configured to set the blockage threshold and performance threshold responsive to a network command. ### Claim 11 (depends on 1) The dual-polarized multiple-input-multiple-output (MIMO) mobile device of claim 1, wherein the controller comprises a modem processor. ### Claim 12 (depends on 1) The dual-polarized multiple-input-multiple-output (MIMO) mobile device of claim 1, wherein the controller is further configured to control the first selector to select for the second cross-polarized received signal responsive to a combination of the blockage being greater than the blockage threshold and a scanning angle of a beam for the first array of antennas being within a polarization switch angle range. ### Claim 13 (depends on 1) The dual-polarized multiple-input-multiple-output (MIMO) mobile device of claim 1, wherein the first array of antennas is further configured to transmit a first co-polarized transmit signal and a first cross-polarized transmit signal and the second array of antennas is further configured to transmit a second co-polarized transmit signal and a second cross-polarized transmit signal, the mobile device further comprising: a first splitter configured to split a first MIMO layer transmit signal into the first co-polarized transmit signal and a first split signal; and a first demultiplexer configured to demultiplex the first split signal, wherein the controller is further configured to control the first demultiplexer to demultiplex the first split signal to form the second co-polarized transmit signal responsive to the blockage being less than the blockage threshold. ### Claim 14 (depends on 13) The dual-polarized multiple-input-multiple-output (MIMO) mobile device of claim 13, further comprising: a second splitter configured to split a second MIMO layer transmit signal into the first cross-polarized transmit signal and a second split signal; and a second demultiplexer configured to demultiplex the second split signal, wherein the controller is further configured to control the second demultiplexer to demultiplex the second split signal to form the first cross-polarized transmit signal responsive to the blockage being less than the blockage threshold. ### Claim 15 (depends on 13) The dual-polarized multiple-input-multiple-output (MIMO) mobile device of claim 13, wherein the controller is further configured to control the first demultiplexer to demultiplex the first split signal to form the second cross-polarized transmit signal responsive to the blockage being greater than the blockage threshold. ### Claim 16 (depends on 13) The dual-polarized multiple-input-multiple-output (MIMO) mobile device of claim 13, wherein the controller is further configured to control the mobile device to notify a network of whether the first split signal is used to form the second co-polarized transmit signal or to form the second cross-polarized transmit signal. ### Claim 17 (depends on 1) The dual-polarized multiple-input-multiple-output (MIMO) mobile device of claim 1, further comprising: a housing for the mobile device, wherein the housing includes a planar front surface, a planar back surface, and an edge that joins the planar front surface to the planar back surface, and wherein the first array of antennas is located adjacent the edge and the second array of antennas is located adjacent the planar back surface. ### Claim 18 (depends on 17) The dual-polarized multiple-input-multiple-output (MIMO) mobile device of claim 17, further comprising an L-shaped antenna module including the first array of antennas and the second array of antennas. ### Claim 19 A dual-polarized multiple-input-multiple-output (MIMO) mobile device, comprising: a first array of antennas configured to receive a first co-polarized received signal and a first cross-polarized received signal; a second array of antennas configured to receive a second co-polarized received signal and a second cross-polarized received signal; a first selector configured to select between the second co-polarized received signal and the second cross-polarized received signal to form a first selected signal; a first combiner configured to combine the first co-polarized received signal with the first selected signal to form a first MIMO layer signal; a blockage sensor configured to detect a blockage of at least one of the first array of antennas and the second array of antennas; and a controller configured to control the first selector to select for the second cross-polarized received signal responsive to the blockage being less than a blockage threshold. ### Claim 20 (depends on 19) The dual-polarized multiple-input-multiple-output (MIMO) mobile device of claim 19, wherein the controller is further configured to control the first selector to select for the second co-polarized received signal responsive to the blockage being greater than the blockage threshold. ### Claim 21 (depends on 19) The dual-polarized multiple-input-multiple-output (MIMO) mobile device of claim 19, wherein the controller is further configured to control the first selector to select for the second co-polarized received signal responsive to a combination of the blockage being greater than the blockage threshold and a performance measurement of the first MIMO layer signal being less than a performance threshold. ### Claim 22 (depends on 19) The dual-polarized multiple-input-multiple-output (MIMO) mobile device of claim 19, wherein the blockage sensor comprises a frequency-modulated continuous-wave radar sensor. ### Claim 23 (depends on 19) The dual-polarized multiple-input-multiple-output (MIMO) mobile device of claim 19, wherein the blockage sensor comprises a capacitive sensor. ### Claim 24 A dual-polarized multiple-input-multiple-output (MIMO) method, comprising: receiving a first co-polarized signal and a first cross-polarized signal at a first array of antennas; receiving a second co-polarized signal and a second cross-polarized signal at a second array of antennas; sensing a blockage of at least one of the first array of antennas and of the second array of antennas; combining the first co-polarized signal and the second co-polarized signal to form a first MIMO layer signal in response to the blockage being less than a blockage threshold; and combining the first co-polarized signal and the second cross-polarized signal to form the first MIMO layer signal in response to the blockage being greater than the blockage threshold. ### Claim 25 (depends on 24) The dual-polarized multiple-input-multiple-output (MIMO) method of claim 24, further comprising: combining the first cross-polarized signal and the second cross-polarized signal to form a second MIMO layer signal in response to the blockage being less than the blockage threshold; and combining the first cross-polarized signal and the second co-polarized signal to form the second MIMO layer signal in response to the blockage being greater than the blockage threshold. ### Claim 26 (depends on 24) The dual-polarized multiple-input-multiple-output (MIMO) method of claim 24, wherein combining the first co-polarized signal with the second cross-polarized signal to form the first MIMO layer signal is further in response to a signal quality measurement of the first MIMO layer signal being less than a performance threshold. ### Claim 27 A dual-polarized multiple-input-multiple-output (MIMO) method, comprising: receiving a first co-polarized signal and a first cross-polarized signal at a first array of antennas; receiving a second co-polarized signal and a second cross-polarized signal at a second array of antennas; combining the first co-polarized signal and the second cross-polarized signal to form a first MIMO layer signal in a first mode; combining the first co-polarized signal and the second co-polarized signal to form the first MIMO layer signal in second mode; and switching between the first mode and the second mode based on a blockage scenario for the first array of antennas or for the second array of antennas. ### Claim 28 (depends on 27) The dual-polarized multiple-input-multiple-output (MIMO) method of claim 27, further comprising: combining the first cross-polarized signal and the second co-polarized signal to form a second MIMO layer signal in the first mode; and combining the first cross-polarized signal and the second cross-polarized signal to form the second MIMO layer signal in the second mode. ### Claim 29 (depends on 27) The dual-polarized multiple-input-multiple-output (MIMO) method of claim 27, wherein the switching is further based on a signal quality measurement of the first MIMO layer signal being less than a performance threshold. ### Claim 30 (depends on 27) The dual-polarized multiple-input-multiple-output (MIMO) method of claim 27, wherein the switching is further based on a beam scan angle of the first array of antennas.