# US 10,772,106 B2 · Radio network node, wireless device and methods performed therein > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,772,106 B2 - Document ID: US10772106B2 - Status: Granted - Kind: B2 - Application number: 15/524,131 - Filed: 2017-03-08 - Published: 2018-10-18 - Granted: 2020-09-08 - Earliest claimed: 2017-03-08 - Assignees: Telefonaktiebolaget LM Ericsson (publ) - Applicants: Telefonaktiebolaget LM Ericsson (publ) - Inventors: Robert Baldemair; Martin Hessler; Eleftherios Karipidis; Bo Lincoln; Torgny Palenius; Eliane Semaan - Web page: https://patentgrep.com/patent/US10772106B2 ## CPC - H04W 72/56: based on priority criteria - H04L 1/0015: {characterised by the adaptation strategy} - H04W 72/542: using measured or perceived quality - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) ## Abstract Embodiments herein relate to a method performed by a wireless device for managing communication of the wireless device in a wireless communications network. The wireless device determines at least two waveform parameters based on a metric of the wireless device, for communicating data between the wireless device and a radio network node in the wireless communications network. The wireless device further transmits an indication indicating the at least two determined waveform parameters to the radio network node. ## Claims ### Claim 1 A method of operation by a wireless device operating in a wireless communications network, the method comprising: determining a preferred subcarrier spacing to use for communicating data between the wireless device and a radio network node of the wireless communications network via an Orthogonal Frequency Division Multiplexing (OFDM) carrier, the determining made by the wireless device in dependence on communication performance or power consumption criteria, wherein determining the preferred subcarrier spacing comprises determining two or more preferred combinations of subcarrier spacing and Modulation and Coding Scheme (MCS) to use for communicating the data between the wireless device and the radio network node; and indicating the preferred subcarrier spacing to the radio network node, wherein indicating the preferred subcarrier spacing comprises indicating the two or more preferred combinations of subcarrier spacing and MCS and further indicating an order of preference for the two or more preferred combinations. ### Claim 2 (depends on 1) The method of claim 1, further comprising: receiving an indication from the radio network node, indicating a selected subcarrier spacing, as selected by the radio network node in consideration of the preferred subcarrier spacing; and using the selected subcarrier spacing for communicating the data between the wireless device and the radio network node. ### Claim 3 (depends on 2) The method of claim 2, wherein using the selected subcarrier spacing for communicating the data between the wireless device and the radio network node comprises operating transceiver circuitry of the wireless device according to the selected subcarrier spacing, for transmission or reception of data. ### Claim 4 (depends on 1) The method of claim 1, wherein determining the preferred subcarrier spacing comprises determining two or more subcarrier spacings and a corresponding order of preference for the two or more subcarrier spacings, and wherein indicating the preferred subcarrier spacing comprises indicating the two or more subcarrier spacings and the corresponding order of preference. ### Claim 5 (depends on 1) The method of claim 1, wherein determining the preferred subcarrier spacing comprises determining a preferred combination of subcarrier spacing and Modulation and Coding Scheme (MCS) to use for communicating the data between the wireless device and the radio network node, and wherein indicating the preferred subcarrier spacing comprises indicating the preferred combination of subcarrier spacing and MCS. ### Claim 6 (depends on 1) The method of claim 1, wherein determining the preferred subcarrier spacing comprises determining a preferred frequency band for communicating the data between the wireless device and the radio network node, in addition to determining the preferred subcarrier spacing, and wherein indicating the preferred subcarrier spacing comprises indicating the preferred frequency band to the radio network node, along with indicating the preferred subcarrier spacing. ### Claim 7 (depends on 1) The method of claim 1, wherein different subcarrier spacings, among a plurality of defined subcarrier spacings, are associated with different levels of power consumption at the wireless device or different levels of data throughput, and wherein determining the preferred subcarrier spacing comprises selecting one of the defined subcarrier spacings in dependence on a targeted level of power consumption or data throughput. ### Claim 8 A method of operation by a radio network node of a wireless communications network, the method comprising: receiving an indication from a wireless device of a preferred subcarrier spacing to use for communicating data between the radio network node and the wireless device via an Orthogonal Frequency Division Multiplexing (OFDM) carrier, as determined by the wireless device in dependence on a communication performance or power consumption criteria at the wireless device, wherein the preferred subcarrier spacing is determined by determining two or more preferred combinations of subcarrier spacing and Modulation and Coding Scheme (MCS) to use for communicating the data between the wireless device and the radio network node; selecting a subcarrier spacing in consideration of the preferred subcarrier spacing and a radio configuration or operating condition of the radio network node; and sending an indication to the wireless device, indicating the selected subcarrier spacing for use in communicating the data between the radio network node and the wireless device. ### Claim 9 (depends on 8) The method of claim 8, further comprising using the selected subcarrier spacing for communicating the data between the radio network node and the wireless device, by configuring transceiver circuitry of the radio network node to operate according to the selected subcarrier spacing. ### Claim 10 (depends on 8) The method of claim 8, wherein the radio configuration considered by the radio network node is a carrier frequency used for communicating the data, wherein the radio network node is configured to accommodate the preferred subcarrier spacing or not, in dependence on the carrier frequency. ### Claim 11 (depends on 8) The method of claim 8, wherein the radio configuration considered by the radio network node is the size of a service area in which the wireless device operates with respect to the radio network node, wherein the radio network node is configured to accommodate the preferred subcarrier spacing or not, in dependence on the size of the service area. ### Claim 12 (depends on 8) The method of claim 8, wherein the operating condition considered by the radio network node is a load on the wireless communications network, at least with respect to a service area of the wireless communications network in which the wireless device operates, wherein the radio network node is configured to accommodate the preferred subcarrier spacing or not, in dependence on the load. ### Claim 13 (depends on 8) The method of claim 8, wherein the preferred subcarrier spacing comprises two or more subcarrier spacings and a corresponding order of preference for the two or more subcarrier spacings, and wherein selecting the subcarrier spacing in consideration of the preferred subcarrier spacing and the radio capability or configuration of the radio network node comprises: selecting a most-preferred one among the two or more subcarrier spacings that is permitted by the radio network in view of the radio configuration or operating condition. ### Claim 14 A wireless device configured for operation in a wireless communications network, the wireless device comprising: transceiver circuitry configured for wirelessly communicating with a radio network node of the wireless communications network; and processing circuitry operatively associated with the transceiver circuitry and configured to: determine a preferred subcarrier spacing to use for communicating data between the wireless device and a radio network node of the wireless communications network via an Orthogonal Frequency Division Multiplexing (OFDM) carrier, the determining made by the wireless device in dependence on communication performance or power consumption criteria, wherein determining the preferred subcarrier spacing comprises determining two or more preferred combinations of subcarrier spacing and Modulation and Coding Scheme (MCS) to use for communicating the data between the wireless device and the radio network node; and indicate the preferred subcarrier spacing to the radio network node, via the communication circuitry, wherein indicating the preferred subcarrier spacing comprises indicating the two or more preferred combinations of subcarrier spacing and MCS and further indicating an order of preference for the two or more preferred combinations. ### Claim 15 (depends on 14) The wireless device of claim 14, wherein the processing circuitry is further configured to: receive an indication from the radio network node, indicating a selected subcarrier spacing, as selected by the radio network node in consideration of the preferred subcarrier spacing; and use the selected subcarrier spacing for communicating the data between the wireless device and the radio network node. ### Claim 16 (depends on 14) The wireless device of claim 14, wherein the processing circuitry is configured to determine the preferred subcarrier spacing by determining two or more subcarrier spacings and a corresponding order of preference for the two or more subcarrier spacings, and to indicate the preferred subcarrier spacing by indicating the two or more subcarrier spacings and the corresponding order of preference. ### Claim 17 (depends on 14) The wireless device of claim 14, wherein different subcarrier spacings, among a plurality of defined subcarrier spacings, are associated with different levels of power consumption at the wireless device or different levels of data throughput, and wherein the processing circuitry is configured to determine the preferred subcarrier spacing by selecting one of the defined subcarrier spacings in dependence on a targeted level of power consumption or data throughput. ### Claim 18 A radio network node configured for operation in a wireless communications network, the radio network node comprising: transceiver circuitry for communicating with a wireless communication device; and communication circuitry operatively associated with the transceiver circuitry and configured to: receive an indication from a wireless device of a preferred subcarrier spacing to use for communicating data between the radio network node and the wireless device via an Orthogonal Frequency Division Multiplexing (OFDM) carrier, as determined by the wireless device in dependence on a communication performance or power consumption criteria at the wireless device, wherein the preferred subcarrier spacing is determined by determining two or more preferred combinations of subcarrier spacing and Modulation and Coding Scheme (MCS) to use for communicating the data between the wireless device and the radio network node; select a subcarrier spacing in consideration of the preferred subcarrier spacing and a radio configuration or operating condition of the radio network node; and send an indication to the wireless device, indicating the selected subcarrier spacing for use in communicating the data between the radio network node and the wireless device. ### Claim 19 (depends on 18) The radio network node of claim 18, wherein the processing circuitry is further configured to use the selected subcarrier spacing for communicating the data between the radio network node and the wireless device, based on configuring the transceiver circuitry to operate with the selected subcarrier spacing. ### Claim 20 (depends on 18) The radio network node of claim 18, wherein the radio configuration is at least one of: a carrier frequency used for communicating the data, and wherein the processing circuitry is configured to accommodate the preferred subcarrier spacing or not, in dependence on the carrier frequency; the size of a service area in which the wireless device operates with respect to the radio network node, wherein the processing circuitry is configured to accommodate the preferred subcarrier spacing or not, in dependence on the size of the service area; or a load on the wireless communications network, at least with respect to a service area of the wireless communications network in which the wireless device operates, wherein the processing circuitry is configured to accommodate the preferred subcarrier spacing or not, in dependence on the load. ### Claim 21 (depends on 18) The radio network node of claim 18, wherein the preferred subcarrier spacing comprises two or more subcarrier spacings and a corresponding order of preference for the two or more subcarrier spacings, and wherein the processing circuitry is configured to select the subcarrier spacing in consideration of the preferred subcarrier spacing and the radio capability or configuration of the radio network node by: selecting a most-preferred one among the two or more subcarrier spacings that is permitted by the radio network in view of the radio configuration or operating condition.