# US 2019/0356368 A1 · Adaptive numerology for beamforming training > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0356368 A1 - Document ID: US20190356368A1 - Status: Published application - Kind: A1 - Application number: 16/474,961 - Filed: 2017-11-16 - Published: 2019-11-21 - Earliest claimed: 2017-01-10 - Assignees: Telefonaktiebolaget LM Ericsson (publ) - Applicants: Telefonaktiebolaget LM Ericsson (publ) - Inventors: Jinhua Liu; Virgile Garcia - Web page: https://patentgrep.com/patent/US20190356368A1 ## CPC - H04B 7/0617: {for beam forming} - 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 5/0094: {Indication of how sub-channels of the path are allocated} - H04L 27/2605: {Symbol extensions, e.g. Zero Tail, Unique Word [UW]} - H04L 5/0007: {the frequencies being orthogonal, e.g. OFDM(A) or DMT} - H04L 5/0025: {Spatial division following the spatial signature of the channel} - H04B: TRANSMISSION - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) ## Abstract A method for communications is proposed. The method may comprise determining a numerology for beamforming training supportable by a network node and a terminal device. The method may further comprise configuring the numerology for the beamforming training. The numerology may define radio resources with adaptive properties used for transmissions of beamforming training signals. The method may further comprise performing the beamforming training based at least partly on the configured numerology. ## Claims ### Claim 1 A method implemented at a radio device, comprising: determining a numerology for beamforming training supportable by a network node and a terminal device; configuring the numerology for the beamforming training, wherein the numerology defines radio resources with adaptive properties used for transmissions of beamforming training signals; and performing the beamforming training based at least partly on the configured numerology. ### Claim 2 (depends on 1) The method according to claim 1, wherein the radio resources with adaptive properties comprise orthogonal frequency division multiplexing symbols having larger sub-carrier spacing than that for regular transmissions. ### Claim 3 (depends on 1) The method according to claim 1, wherein the numerology for the beamforming training is configured via system information from the network node to the terminal device according to a predefined rule. ### Claim 4 (depends on 1) The method according to claim 1, wherein the numerology for the beamforming training is determined by selecting it from one or more numerologies for beamforming training supportable by the terminal device, and wherein the one or more numerologies are indicated by a report from the terminal device. ### Claim 5 (depends on 4) The method according to claim 4, wherein the numerology for the beamforming training is configured through one or more of the following: signaling between the network node and the terminal device; and an indicator from the network node. ### Claim 6 (depends on 1) The method according to claim 1, wherein the numerology for the beamforming training is supportable by one or more other terminal devices sharing the beamforming training signals with the terminal device. ### Claim 7 (depends on 1) The method according to claim 1, wherein the numerology for the beamforming training is determined based at least partly on one or more of the following: geometry of the terminal device; mobility of the terminal device; a radio link condition; a procedure or a stage of a procedure currently performed for the beamforming training; and allocation of the radio resources used for transmissions of beamforming training signals. ### Claim 8 (depends on 1) The method according to claim 1, wherein in response to the numerology for the beamforming training meeting one or more predefined requirements, the method further comprises: determining another numerology for beamforming training to replace the numerology for the beamforming training, wherein the another numerology is supportable by the network node and the terminal device; configuring the another numerology for the beamforming training to adjust the adaptive properties of the radio resources; and performing the beamforming training based at least partly on the another configured numerology. ### Claim 9 (depends on 1) The method according to claim 1, wherein the beamforming training is performed by combining time multiplexing with at least one of frequency multiplexing and spatial multiplexing. ### Claim 10 (canceled) ### Claim 11 An apparatus, comprising: one or more processors; and one or more memories comprising computer program codes, the one or more memories and the computer program codes configured to, with the one or more processors, cause the apparatus at least to: determine a numerology for beamforming training supportable by a network node and a terminal device; configure the numerology for the beamforming training, wherein the numerology defines radio resources with adaptive properties used for transmissions of beamforming training signals; and perform the beamforming training based at least partly on the configured numerology. ### Claim at position 12 12-21. (canceled) ### Claim 22 A method implemented at a radio device, comprising: obtaining indication information which indicates configuration of a numerology for beamforming training supportable at least by a terminal device, wherein the numerology defines radio resources with adaptive properties used for transmissions of beamforming training signals; and performing the beamforming training based at least partly on the configuration of the numerology. ### Claim 23 (depends on 22) The method according to claim 22, wherein the radio resources with adaptive properties comprise orthogonal frequency division multiplexing symbols having larger sub-carrier spacing than that for regular transmissions. ### Claim 24 (depends on 22) The method according to claim 22, wherein the indication information is obtained via system information from a network node to the terminal device according to a predefined rule. ### Claim 25 (depends on 22) The method according to claim 22, further comprising: transmitting a report from the terminal device to a network node, wherein the report indicates one or more numerologies for beamforming training supportable by the terminal device, and wherein the one or more numerologies comprise the numerology for the beamforming training. ### Claim 26 (depends on 25) The method according to claim 25, wherein the indication information is obtained through one or more of the following: signaling between a network node and the terminal device; and an indicator from the network node. ### Claim 27 (depends on 22) The method according to claim 22, wherein the numerology for the beamforming training is supportable by one or more other terminal devices sharing the beamforming training signals with the terminal device. ### Claim 28 (depends on 22) The method according to claim 22, wherein the numerology for the beamforming training is based at least partly on one or more of the following: geometry of the terminal device; mobility of the terminal device; a radio link condition; a procedure or a stage of a procedure currently performed for the beamforming training; and allocation of the radio resources used for transmissions of beamforming training signals. ### Claim 29 (depends on 22) The method according to claim 22, further comprising: obtaining new indication information which indicates configuration of another numerology for beamforming training to replace the numerology for the beamforming training, wherein the another numerology is supportable at least by the terminal device; and performing the beamforming training based at least partly on the configuration of the another numerology which adjusts the adaptive properties of the radio resources. ### Claim 30 (depends on 22) The method according to claim 22, wherein the beamforming training is performed by combining time multiplexing with at least one of frequency multiplexing and spatial multiplexing. ### Claim 31 (canceled) ### Claim 32 An apparatus, comprising: one or more processors; and one or more memories comprising computer program codes, the one or more memories and the computer program codes configured to, with the one or more processors, cause the apparatus at least to: obtain indication information which indicates configuration of a numerology for beamforming training supportable at least by a terminal device, wherein the numerology defines radio resources with adaptive properties used for transmissions of beamforming training signals; and perform the beamforming training based at least partly on the configuration of the numerology. ### Claim at position 24 33-43. (canceled)