# US 12,114,398 B2 · Method for reporting band information and related device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,114,398 B2 - Document ID: US12114398B2 - Status: Granted - Kind: B2 - Application number: 17/608,072 - Filed: 2021-02-05 - Published: 2022-06-09 - Granted: 2024-10-08 - Earliest claimed: 2020-02-13 - Assignees: Huawei Technologies Co., Ltd. - Applicants: Huawei Technologies Co., Ltd. - Inventors: Yiru Kuang; Bingzhao Li; Hongping Zhang - Web page: https://patentgrep.com/patent/US12114398B2 ## CPC - H04L 5/001: {the frequencies being arranged in component carriers} - H04W 8/24: Transfer of terminal data - H04L 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals} - H04L 5/0094: {Indication of how sub-channels of the path are allocated} - H04W 72/02: Selection of wireless resources by user or terminal - H04W 72/0453: Resources in frequency domain, e.g. a carrier in FDMA - H04W 72/51: based on terminal or device properties - H04W 72/20: Control channels or signalling for resource management - H04W 88/06: adapted for operation in multiple networks {or having at least two operational modes}, e.g. multi-mode terminals - 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 a method, a first band combination set reported by a terminal device may include a first band combination and a second band combination, the first band combination is a fallback band combination that has a same capability as the second band combination, and the first band combination and the second band combination correspond to different radio access technology types. ## Claims ### Claim 1 A method, comprising: receiving a terminal device capability enquiry message, wherein the terminal device capability enquiry message comprises a capability filter parameter, and the capability filter parameter indicates a range of requested terminal device capability information; determining a second band combination set based on the terminal device capability enquiry message; removing a first fallback band combination from the second band combination set, to obtain a first band combination set, wherein the first fallback band combination has a same capability as another band combination in the second band combination set, and the first fallback band combination is obtained by releasing at least one secondary cell or uplink configuration of at least one secondary cell from the another band combination, and wherein the first band combination set comprises a second fallback band combination, and the second fallback band combination is obtained by releasing a secondary cell group from the another band combination; and sending the first band combination set. ### Claim 2 (depends on 1) The method according to claim 1, wherein the first fallback band combination and the another band combination correspond to a same radio access technology type, and the second fallback band combination and the another band combination correspond to different radio access technology types. ### Claim 3 (depends on 1) The method according to claim 1, wherein the second fallback band combination is a new radio standalone (NR SA) band combination, and the another band combination is a new radio-evolved universal mobile telecommunications system terrestrial radio access-dual connectivity (NE-DC) band combination. ### Claim 4 (depends on 1) The method according to claim 1, wherein a radio access technology type corresponding to the second fallback band combination is new radio (NR), and a radio access technology type corresponding to the another band combination is evolved universal mobile telecommunications system terrestrial radio access-new radio (EUTRA-NR). ### Claim 5 (depends on 1) The method according to claim 1, wherein the capability filter parameter comprises band information, the band information requests a band combination in a specified range, and the second band combination set comprises a band combination that is in the specified range and that is supported by a terminal device. ### Claim 6 A method, comprising: sending a terminal device capability enquiry message, wherein the terminal device capability enquiry message comprises a capability filter parameter, and the capability filter parameter indicates a range of requested terminal device capability information; receiving a first band combination set, wherein the first band combination set comprises a second fallback band combination, and the second fallback band combination is obtained by releasing a secondary cell group from another band combination; and adding a first fallback band combination to the first band combination set, to obtain a second band combination set, wherein the first fallback band combination has a same capability as the another band combination, and is obtained by releasing at least one secondary cell or uplink configuration of at least one secondary cell from the another band combination. ### Claim 7 (depends on 6) The method according to claim 6, wherein the capability filter parameter comprises band information, the band information requests a band combination in a specified range, and the second band combination set comprises a band combination that is in the specified range and that is supported by a terminal device. ### Claim 8 (depends on 6) The method according to claim 6, wherein the first fallback band combination and the another band combination correspond to a same radio access technology type, and the second fallback band combination and the another band combination correspond to different radio access technology types. ### Claim 9 (depends on 6) The method according to claim 6, wherein the second fallback band combination is a new radio standalone (NR SA) band combination, and the another band combination is a new radio-evolved universal mobile telecommunications system terrestrial radio access-dual connectivity (NE-DC) band combination. ### Claim 10 An apparatus, comprising: a transceiver, configured to receive a terminal device capability enquiry message, wherein the terminal device capability enquiry message comprises a capability filter parameter, and the capability filter parameter indicates a range of requested terminal device capability information; and a processor, configured to: determine a second band combination set based on the terminal device capability enquiry message; and remove a first fallback band combination from the second band combination set, to obtain a first band combination set, wherein the first fallback band combination has a same capability as another band combination in the second band combination set, and the first fallback band combination is obtained by releasing at least one secondary cell or uplink configuration of at least one secondary cell from the another band combination, and wherein the first band combination set comprises a second fallback band combination, and the second fallback band combination is obtained by releasing a secondary cell group from the another band combination; and wherein the transceiver is further configured to send the first band combination set. ### Claim 11 (depends on 10) The apparatus according to claim 10, wherein the first fallback band combination and the another band combination correspond to a same radio access technology type, and the second fallback band combination and the another band combination correspond to different radio access technology types. ### Claim 12 (depends on 10) The apparatus according to claim 10, wherein the second fallback band combination is a new radio standalone (NR SA) band combination, and the another band combination is a new radio-evolved universal mobile telecommunications system terrestrial radio access-dual connectivity (NE-DC) band combination. ### Claim 13 (depends on 10) The apparatus according to claim 10, wherein a radio access technology type corresponding to the second fallback band combination is new radio (NR), and a radio access technology type corresponding to the another band combination is evolved universal mobile telecommunications system terrestrial radio access (EUTRA-NR). ### Claim 14 (depends on 10) The apparatus according to claim 10, wherein the capability filter parameter comprises band information, the band information requests a band combination in a specified range, and the second band combination set comprises a band combination that is in the specified range and that is supported by a terminal device. ### Claim 15 An apparatus, comprising: a transceiver, configured to send a terminal device capability enquiry message, wherein the terminal device capability enquiry message comprises a capability filter parameter, and the capability filter parameter indicates a range of requested terminal device capability information; and a processor, configured to: receive a first band combination set, wherein the first band combination set comprises a second fallback band combination, and the second fallback band combination is obtained by releasing a secondary cell group from another band combination; and add a first fallback band combination to the first band combination set, to obtain a second band combination set, wherein the first fallback band combination has a same capability as the another band combination, and is obtained by releasing at least one secondary cell or uplink configuration of at least one secondary cell from the another band combination. ### Claim 16 (depends on 15) The apparatus according to claim 15, wherein the capability filter parameter comprises band information, the band information requests a band combination in a specified range, and the second band combination set comprises a band combination that is in the specified range and that is supported by a terminal device. ### Claim 17 (depends on 15) The apparatus according to claim 15, wherein the first fallback band combination and the another band combination correspond to a same radio access technology type, and the first band combination and the another band combination correspond to different radio access technology types. ### Claim 18 (depends on 15) The apparatus according to claim 15, wherein the second fallback band combination is a new radio standalone (NR SA) band combination, and the another band combination is a new radio-evolved universal mobile telecommunications system terrestrial radio access-dual connectivity (NE-DC) band combination.