# US 12,113,658 B1 · Modulation order selection associated with resiliency against spur impairment > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,113,658 B1 - Document ID: US12113658B1 - Status: Granted - Kind: B1 - Application number: 18/320,091 - Filed: 2023-05-18 - Granted: 2024-10-08 - Earliest claimed: 2023-05-18 - Assignees: QUALCOMM Incorporated - Applicants: QUALCOMM Incorporated - Inventors: Aviv Regev; Ronen Shaked; Shay Landis - Web page: https://patentgrep.com/patent/US12113658B1 ## CPC - H04L 1/0003: {by switching between different modulation schemes} - H04L 27/3405: {Modifications of the signal space to increase the efficiency of transmission, e.g. reduction of the bit error rate, bandwidth, or average power} - H04L 1/0009: {by adapting the channel coding (H04L1/1812 takes precedence)} - H04L 1/0023: {characterised by the signalling} - H04L 1/0033: {arrangements specific to the transmitter} - H04L 27/3854: {using a non - coherent carrier, including systems with baseband correction for phase or frequency offset} - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) ## Abstract This disclosure provides systems, methods, and apparatuses, including computer programs encoded on computer storage media, for wireless communication. In one aspect of the disclosure, a method for wireless communication performed by a user equipment (UE) includes receiving first and second indications of respective first and second sets of subcarriers associated with respective first and second modulation orders. Each subcarrier of the second set of subcarriers is associated with a first RF spur associated with the network node. The method further includes demodulating respective first and second signals concurrently received on the respective first and second sets of subcarriers in accordance with the respective first and second modulation orders. Other aspects and features are also claimed and described. ## Claims ### Claim 1 A method for wireless communication performed by a user equipment (UE), the method comprising: receiving, from a network node, a first indication of a first set of one or more subcarriers of a bandwidth and a first modulation order associated with the first set of one or more subcarriers and a second indication of a second set of one or more subcarriers of the bandwidth and a second modulation order associated with the second set of one or more subcarriers, each subcarrier of the second set of one or more subcarriers being associated with a first radio frequency (RF) spur of a signal spectrum associated with the network node; and demodulating a first signal received on the first set of one or more subcarriers in accordance with the first modulation order and a second signal concurrently received on the second set of one or more subcarriers in accordance with the second modulation order. ### Claim 2 (depends on 1) The method of claim 1, further comprising: receiving, from the network node before receiving the first and second indications, a third indication of a third set of one or more subcarriers with which one or more RF spurs including the first RF spur are associated, wherein the second set of one or more subcarriers comprises at least a portion of the third set of one or more subcarriers. ### Claim 3 (depends on 2) The method of claim 2, further comprising: calculating a difference between a signal level and a noise level for a fourth set of one or more subcarriers that does not overlap the third set of one or more subcarriers in accordance with the received third indication of the third set of one or more subcarriers; and transmitting, to the network node before receiving the first and second indications, a fourth indication of the calculated difference. ### Claim 4 (depends on 3) The method of claim 3, wherein the fourth indication of the calculated difference is transmitted in a channel state feedback (CSF) message. ### Claim 5 (depends on 3) The method of claim 3, wherein the fourth indication of the calculated difference is an indication of a reference thermal noise power for the fourth set of one or more subcarriers. ### Claim 6 (depends on 1) The method of claim 1, wherein the second modulation order is lower than the first modulation order. ### Claim 7 (depends on 6) The method of claim 6, wherein the first modulation order comprises a 16k quadrature amplitude modulation (QAM) modulation order. ### Claim 8 A user equipment (UE) comprising: one or more memories; and one or more processors coupled with the one or more memories and individually or collectively operable to: receive, from a network node, a first indication of a first set of one or more subcarriers of a bandwidth and a first modulation order associated with the first set of one or more subcarriers and a second indication of a second set of one or more subcarriers of the bandwidth and a second modulation order associated with the second set of one or more subcarriers, each subcarrier of the second set of one or more subcarriers being associated with a first radio frequency (RF) spur of a signal spectrum associated with the network node; and demodulate a signal received on the first set of one or more subcarriers in accordance with the first modulation order and a signal concurrently received on the second set of one or more subcarriers in accordance with the second modulation order. ### Claim 9 (depends on 8) The UE of claim 8, wherein the one or more processors are further operable to: receive, from the network node before receiving the first indication and the second indication, a third indication of a third set of one or more subcarriers with which one or more RF spurs including the first RF spur are associated, wherein the second set of one or more subcarriers comprises at least a portion of the third set of one or more subcarriers. ### Claim 10 (depends on 9) The UE of claim 9, wherein the one or more processors are further operable to: calculate a difference between a signal level and a noise level for a fourth set of one or more subcarriers that does not overlap the third set of one or more subcarriers in accordance with the received third indication of the third set of one or more subcarriers; and transmit, to the network node before receiving the first indication and the second indication, a fourth indication of the calculated difference. ### Claim 11 (depends on 10) The UE of claim 10, wherein the fourth indication of the calculated difference is transmitted in a channel state feedback (CSF) message. ### Claim 12 (depends on 10) The UE of claim 10, wherein the fourth indication of the calculated difference is an indication of a reference thermal noise power for the fourth set of one or more subcarriers. ### Claim 13 (depends on 10) The UE of claim 10, wherein the second modulation order is lower than the first modulation order. ### Claim 14 (depends on 13) The UE of claim 13, wherein the first modulation order comprises a 16k quadrature amplitude modulation (QAM) modulation order. ### Claim 15 A method for wireless communication performed by a network node, the method comprising: transmitting, to a user equipment (UE), a first indication of a first set of one or more subcarriers of a bandwidth and a first modulation order associated with the first set of one or more subcarriers, and a second indication of a second set of one or more subcarriers of the bandwidth and a second modulation order associated with the second set of one or more subcarriers, each subcarrier of the second set of one or more subcarriers being associated with a first radio frequency (RF) spur of a signal spectrum associated with the network node; and transmitting, to the UE, a first signal on the first set of subcarriers that is modulated in accordance with the first modulation order and concurrently transmitting a second signal on the second set of one or more subcarriers that is modulated in accordance with the second modulation order. ### Claim 16 (depends on 15) The method of claim 15, further comprising: transmitting, to the UE before transmitting the first indication and the second indication, a third indication of a third set of one or more subcarriers with which one or more RF spurs including the first RF spur are associated, wherein the second set of one or more subcarriers comprises at least a portion of the third set of one or more subcarriers. ### Claim 17 (depends on 16) The method of claim 16, further comprising: identifying, in accordance with a power spectrum density of noise associated with the network node, the third set of one or more subcarriers on which one or more RF spurs are located. ### Claim 18 (depends on 16) The method of claim 16, further comprising: receiving, from the UE before transmitting first indication and the second indication, a fourth indication of a difference between a signal level and a noise level for a fourth set of one or more subcarriers that does not overlap the third set of one or more subcarriers. ### Claim 19 (depends on 18) The method of claim 18, wherein the transmission of the first indication and the second indication is in accordance with the difference between the signal level and the noise level for the fourth set of one or more subcarriers being greater than a power level of the first RF spur associated with each subcarrier of the second set of one or more subcarriers. ### Claim 20 (depends on 18) The method of claim 18, wherein the fourth indication of the difference for the fourth set of one or more subcarriers is received in a channel state feedback (CSF) message. ### Claim 21 (depends on 18) The method of claim 18, wherein the fourth indication of the difference for the fourth set of one or more subcarriers is an indication of a reference thermal noise power for the fourth set of one or more subcarriers. ### Claim 22 (depends on 15) The method of claim 15, wherein the second modulation order is lower than the first modulation order. ### Claim 23 A network node comprising: one or more memories; and one or more processors coupled with the one or more memories and individually or collectively operable to: transmit, to a user equipment (UE), a first indication of a first set of one or more subcarriers of a bandwidth and a first modulation order associated with the first set of one or more subcarriers, and a second indication of a second set of one or more subcarriers of the bandwidth and a second modulation order associated with the second set of one or more subcarriers, each subcarrier of the second set of one or more subcarriers being associated with a first radio frequency (RF) spur of a signal spectrum associated with the network node; and transmit, to the UE, a first signal on the first set of subcarriers that is modulated in accordance with the first modulation order and concurrently transmit a second signal on the second set of one or more subcarriers that is modulated in accordance with the second modulation order. ### Claim 24 (depends on 23) The network node of claim 23, wherein the one or more processors are further operable to: transmit, to the UE before transmitting first indication and the second indication, a third indication of a third set of one or more subcarriers with which one or more RF spurs including the first RF spur are associated, wherein the second set of one or more subcarriers comprises at least a portion of the third set of one or more subcarriers. ### Claim 25 (depends on 24) The network node of claim 24, wherein the one or more processors are further operable to: identify, in accordance with a power spectrum density of noise associated with the network node, the third set of one or more subcarriers on which one or more RF spurs are located. ### Claim 26 (depends on 24) The network node of claim 24, wherein the one or more processors are further operable to: receive, from the UE before transmitting first indication and the second indication, a fourth indication of a difference between a signal level and a noise level for a fourth set of one or more subcarriers that does not overlap the third set of one or more subcarriers. ### Claim 27 (depends on 26) The network node of claim 26, wherein the transmission of the first indication and the second indication is in accordance with the difference for the fourth set of one or more subcarriers being greater than a power level of an RF spur associated with each subcarrier of the second set of one or more subcarriers. ### Claim 28 (depends on 26) The network node of claim 26, wherein the fourth indication of the difference for the fourth set of one or more subcarriers is received in a channel state feedback (CSF) message. ### Claim 29 (depends on 26) The network node of claim 26, wherein the fourth indication of the difference for the fourth set of one or more subcarriers is an indication of a reference thermal noise power for the fourth set of one or more subcarriers. ### Claim 30 (depends on 23) The network node of claim 23, wherein the second modulation order is lower than the first modulation order.