# US 11,451,349 B2 · Dynamic selection of multicarrier mode based on QoS parameters > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,451,349 B2 - Document ID: US11451349B2 - Status: Granted - Kind: B2 - Application number: 16/707,334 - Filed: 2019-12-09 - Published: 2020-04-09 - Granted: 2022-09-20 - Earliest claimed: 2015-06-22 - Assignees: Telefonaktiebolaget LM Ericsson (publ) - Applicants: Telefonaktiebolaget LM Ericsson (publ) - Inventors: Shehzad Ali Ashraf; Junaid Ansari; Robert Baldemair; Bengt Lindoff - Web page: https://patentgrep.com/patent/US11451349B2 ## CPC - H04L 5/0007: {the frequencies being orthogonal, e.g. OFDM(A) or DMT} - H04L 5/0028: {Variable division (indication of the divided channel H04L5/0092)} - H04L 5/0064: {Rate requirement of the data, e.g. scalable bandwidth, data priority} - H04L 27/2636: {with FFT or DFT modulators, e.g. standard single-carrier frequency-division multiple access [SC-FDMA] transmitter or DFT spread orthogonal frequency division multiplexing [DFT-SOFDM]} - H04L 27/264: {Pulse-shaped multi-carrier, i.e. not using rectangular window} - H04L 27/26414: {Filtering per subband or per resource block, e.g. universal filtered multicarrier [UFMC] or generalized frequency division multiplexing [GFDM]} - H04L 27/26416: {Filtering per subcarrier, e.g. filterbank multicarrier [FBMC]} - H04L 27/26538: {Filtering per subband or per resource block, e.g. universal filtered multicarrier [UFMC] or generalized frequency division multiplexing [GFDM]} - H04L 27/2654: {Filtering per subcarrier, e.g. filterbank multicarrier [FBMC]} - H04W 72/0446: Resources in time domain, e.g. slots or frames - 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 In one aspect, a transmitter, for a first time interval, allocates first and second portions of a frequency band to first and second multicarrier modulation schemes with first and second subcarrier spacings that differ from one another. The data is transmitted to wireless devices in the first time interval using the first and second multicarrier modulation schemes in the first and second portions of the frequency band. For a second time interval, third and fourth non-overlapping portions of a frequency band are allocated to third and fourth multicarrier modulation schemes that have third and fourth subcarrier spacings that differ from one another. The third and fourth portions and/or schemes differ from the first and second portions and/or schemes. The data is transmitted in the second time interval using the third and fourth multicarrier modulation schemes in the third and fourth portions of the frequency band. ## Claims ### Claim 1 A method in a transceiver configured to transmit and receive wireless transmissions, the method comprising: in a first time interval, modulating and transmitting data on a first portion of a frequency band, using a first multicarrier modulation mode having a first subcarrier spacing; and in a second time interval, modulating and transmitting data on a second portion of the frequency band, using a second multicarrier modulation mode having a second subcarrier spacing; wherein the first subcarrier spacing differs from the second subcarrier spacing; wherein the transceiver is comprised in a user equipment and wherein the method further comprises sending, to a radio base station, an indication of the user equipment's capabilities with respect to multicarrier modulation modes. ### Claim 2 (depends on 1) The method of claim 1, wherein the first portion of the frequency band is different from the second portion of the frequency band. ### Claim 3 (depends on 1) The method of claim 1, wherein the first and second subcarrier spacings for the first and second portions of the frequency band are based on different service requirements in said first and second time interval. ### Claim 4 (depends on 1) The method of claim 1, wherein the method further comprises sending, to a radio base station, an indication of service requirements. ### Claim 5 (depends on 1) The method of claim 1, wherein the method further comprises receiving information about a selected multicarrier modulation mode on a control channel from a radio base station. ### Claim 6 A method in a transceiver configured to transmit and receive wireless transmissions, the method comprising: in a first time interval, modulating and transmitting data on a first portion of a frequency band, using a first multicarrier modulation mode having a first subcarrier spacing; and in a second time interval, modulating and transmitting data on a second portion of the frequency band, using a second multicarrier modulation mode having a second subcarrier spacing; wherein the first subcarrier spacing differs from the second subcarrier spacing; wherein the transceiver is comprised in a radio base station and wherein the method further comprises receiving, from a user equipment, an indication of said user equipment's capabilities with respect to multicarrier modulation modes. ### Claim 7 (depends on 6) The method of claim 6, wherein the method further comprises receiving, from a user equipment, an indication of service requirement. ### Claim 8 (depends on 6) The method of claim 6, wherein the method further comprises selecting a multicarrier modulation mode to be used based on service requirements. ### Claim 9 (depends on 6) The method of claim 6, wherein the method further comprises signaling information about the selected multicarrier modulation mode on a control channel to a user equipment. ### Claim 10 A wireless transmitter, comprising: a transceiver circuit configured to transmit and receive wireless transmissions according to multicarrier modulation schemes; and a processing circuit operatively connected to the transceiver circuit and configured to control the transceiver circuit to: in a first time interval, modulate and transmit data on a first portion of a frequency band, using a first multicarrier modulation mode having a first subcarrier spacing; and in a second time interval, modulate and transmit data on a second portion of the frequency band, using a second multicarrier modulation mode having a second subcarrier spacing; wherein the first subcarrier spacing differs from the second subcarrier spacing; wherein the transceiver is configured for operation in a user equipment and wherein the processing circuit is further configured to control the transceiver to send, to a radio base station, an indication of the user equipment's capabilities with respect to multicarrier modulation modes. ### Claim 11 (depends on 10) The wireless transmitter of claim 10, wherein the first portion of the frequency band is different from the second portion of the frequency band. ### Claim 12 (depends on 10) The wireless transmitter of claim 10, wherein the first and second subcarrier spacings for the first and second portions of the frequency band are based on different service requirements in said first and second time interval. ### Claim 13 (depends on 10) The wireless transmitter of claim 10, wherein the processing circuit is further configured to control the transceiver to send, to a radio base station, an indication of service requirements. ### Claim 14 (depends on 10) The wireless transmitter of claim 10, wherein the processing circuit is further configured to control the transceiver to receive information about a selected multicarrier modulation mode on a control channel from a radio base station.