# US 12,113,656 B2 · Facilitating selection of demodulation reference signal ports in advanced networks > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,113,656 B2 - Document ID: US12113656B2 - Status: Granted - Kind: B2 - Application number: 18/162,089 - Filed: 2023-01-31 - Published: 2023-06-15 - Granted: 2024-10-08 - Earliest claimed: 2019-02-15 - Assignees: AT&T Intellectual Property I, L.P. - Applicants: AT&T Intellectual Property I, L.P. - Inventors: SaiRamesh Nammi - Web page: https://patentgrep.com/patent/US12113656B2 ## CPC - H04L 27/2613: {Structure of the reference signals} - H04B 7/0486: {taking channel rank into account} - H04B 7/0626: {Channel coefficients, e.g. channel state information [CSI]} - 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 27/2614: {Peak power aspects} - H04W 8/24: Transfer of terminal data - H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal - H04B 7/0628: {Diversity capabilities} - H04L 27/2615: {Reduction thereof using coding} - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) - H04B: TRANSMISSION - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract Facilitating selection of demodulation reference signal port combinations in advanced networks (e.g., 4G, 5G, 6G, and beyond) is provided herein. Operations of a system can comprise evaluating a capability of a mobile device. The operations can also comprise assigning a first group of port combinations for the mobile device based on the capability of the mobile device being a first capability and a second group of port combinations for the mobile device based on the capability of the mobile device being a second capability, resulting in a port combination assignment. The port combination assignment can mitigate a peak-to-average power ratio value. ## Claims ### Claim 1 A method, comprising: based on a capability of a user equipment, determining, by network equipment comprising a processor, that a port combination selected from a group of port combinations increases a peak-to-average power ratio value; and based on the determining that the port combination increases the peak-to-average power ratio value, removing, by the network equipment, the port combination as a candidate port combination for assignment to the user equipment. ### Claim 2 (depends on 1) The method of claim 1, wherein the port combination is a first port combination, and wherein the method further comprises: determining, by the network equipment, that a second port combination selected from the group of port combinations decreases the peak-to-average power ratio value; and based on the determining that the second port combination decreases the peak-to-average power ratio value, assigning, by the network equipment, the second port combination to the user equipment. ### Claim 3 (depends on 2) The method of claim 2, further comprising: facilitating, by the network equipment, a conveyance of information indicative of the second port combination to the user equipment. ### Claim 4 (depends on 3) The method of claim 3, wherein the facilitating comprises sending downlink control information to the user equipment. ### Claim 5 (depends on 2) The method of claim 2, wherein the assigning comprises: selecting the second port combination from the group of port combinations based on the second port combination being capable of decreasing a current peak-to-average power ratio value as compared to other port combinations of the group of port combinations, comprising the first port combination, that are incapable of decreasing the current peak-to-average power ratio value. ### Claim 6 (depends on 2) The method of claim 2, wherein the first port combination is a first demodulation reference signal port combination, and wherein the second port combination is a second demodulation reference signal port combination. ### Claim 7 (depends on 1) The method of claim 1, wherein the capability of the user equipment is a first capability based on the user equipment being capable of supporting a code division multiplexing group or a second capability based on the user equipment not being capable of supporting the code division multiplexing group. ### Claim 8 (depends on 1) The method of claim 1, wherein the peak-to-average power ratio value is associated with a communications network, wherein the communications network comprises the network equipment, and wherein the user equipment is connected to the network equipment via the communications network. ### Claim 9 (depends on 8) The method of claim 8, wherein the communications network is configured to operate according to at least a fifth generation network communication protocol. ### Claim 10 A system, comprising: a processor; and a memory that stores executable instructions that, when executed by the processor, facilitate performance of operations, comprising: based on a capability of a user equipment, determining that a port combination of a group of port combinations increases a current peak-to-average power ratio value; and removing the port combination from consideration for assignment to the user equipment. ### Claim 11 (depends on 10) The system of claim 10, wherein the port combination is a first port combination, and wherein the operations further comprise: determining that a second port combination of the group of port combinations decreases the current peak-to-average power ratio value; and assigning the second port combination to the user equipment based on the determining indicating that the second port combination decreases the current peak-to-average power ratio value. ### Claim 12 (depends on 11) The system of claim 11, wherein the operations further comprise: sending, to the user equipment, a transmission that comprises information indicative of the second port combination. ### Claim 13 (depends on 11) The system of claim 11, wherein the operations further comprise: prior to the determining, receiving an indication of the capability of the user equipment, wherein the receiving comprises receiving an information element in a received signal. ### Claim 14 (depends on 13) The system of claim 13, wherein the information element is set to a first value based on the capability being determined to be a first capability and set to a second value based on the capability being determined to be a second capability, wherein the first capability is an ability of the user equipment to support a code division multiplexing group, and wherein the second capability is an inability of the user equipment to support the code division multiplexing group. ### Claim 15 (depends on 10) The system of claim 10, wherein the current peak-to-average power ratio value is associated with a communications network, and wherein the user equipment is connected to network equipment via the communications network. ### Claim 16 (depends on 15) The system of claim 15, wherein the communications network is configured to operate according to a new radio network communication protocol. ### Claim 17 A non-transitory machine-readable medium, comprising executable instructions that, when executed by a processor, facilitate performance of operations, comprising: based on a capability of a user equipment, determining that a port combination selected from multiple port combinations increases a peak-to-average power ratio value; and removing the port combination as a candidate port combination for assignment to the user equipment, wherein the capability of the user equipment is a first capability based on the user equipment being capable of supporting a code division multiplexing function or a second capability based on the user equipment not being capable of supporting the code division multiplexing function. ### Claim 18 (depends on 17) The non-transitory machine-readable medium of claim 17, wherein the port combination is a first port combination, and wherein the operations further comprise: determining that a second port combination, selected from the multiple port combinations, decreases the peak-to-average power ratio value; and selecting the second port combination as the candidate port combination for assignment to the user equipment. ### Claim 19 (depends on 18) The non-transitory machine-readable medium of claim 18, wherein the selecting comprises: selecting the second port combination from the multiple port combinations based on the second port combination being determined to be capable of decreasing a current peak-to-average power ratio value as compared to other port combinations of the multiple port combinations, other than the second port combination, that are incapable of decreasing the current peak-to-average power ratio value. ### Claim 20 (depends on 17) The non-transitory machine-readable medium of claim 17, wherein the peak-to-average power ratio value is associated with a communications network, and wherein the user equipment is connected to network equipment via the communications network.