# US 2023/0276418 A1 · Methods and systems for dynamic rf band allocation > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2023/0276418 A1 - Document ID: US20230276418A1 - Status: Published application - Kind: A1 - Application number: 18/170,447 - Filed: 2023-02-16 - Published: 2023-08-31 - Earliest claimed: 2020-08-21 - Assignees: pSemi Corporation - Applicants: pSemi Corporation - Inventors: Peter BACON - Web page: https://patentgrep.com/patent/US20230276418A1 ## CPC - H04W 4/02: Services making use of location information - H04W 72/0453: Resources in frequency domain, e.g. a carrier in FDMA - H04B 1/0075: {using different intermediate frequencied for the different bands} - H04B 1/1036: {with automatic suppression of narrow band noise or interference, e.g. by using tuneable notch filters (H04B1/123 takes precedence; filter circuits H03H)} - H04B 2001/1072: {by tuning the receiver frequency} - H04W 72/1268: of uplink data flows - H04W 72/1273: of downlink data flows - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - H04B: TRANSMISSION ## Abstract Methods and systems for frequency band allocation are provided. A tunable/selectable passband filter is disclosed that changes based on the time and location of the user equipment. Additionally, a method of allocating and optimizing upload and download bands is provided to mitigate inter-modulation distortion due to intermodular distortion effects from strong uplink channels. ## Claims ### Claim 1 A tunable filter configured to: select a passband over a first frequency band and a second frequency band, where the first band overlaps the second band; determine a current time of the tunable filter; determine a location of the tunable filter; compare the current time to a time of band availability for a region; and when the current time is equal to or after the time of band availability and the location is in the region, adjust the passband to cover frequencies made available at the time of band availability for the region. ### Claim 2 (depends on 1) The tunable filter of claim 1, wherein the passband is a 3 dB passband. ### Claim 3 (depends on 1) The tunable filter of claim 1, wherein the passband before being adjusted is about 3300-3800 MHz and the frequencies made available are about 3800-4000 MHz. ### Claim 4 A tunable filter with a nominal passband having a selectable center frequency, the tunable filter configured to: determine a current time of the tunable filter; determine a location of the tunable filter; and select a center frequency of the nominal passband based on the current time, the location, and a sequential time of frequency availability based on region. ### Claim 5 (depends on 4) The tunable filer of claim 4, wherein the nominal passband is a nominal 3 dB passband. ### Claim 6 (depends on 4) The tunable filter of claim 4, where the nominal passband is about a 100 MHz passband and the center frequency selected between 3350 to 3950 MHz. ### Claim 7 A selectable filter with a plurality of nominal passbands each with different center frequencies, the selectable filter configured to: determine a current time of the tunable filter; determine a location of the tunable filter; and select a nominal passband from the plurality of nominal passbands based on the current time, the location, and a sequential time of frequency availability based on region. ### Claim 8 (depends on 7) The selectable filter of claim 7, wherein the nominal passbands are nominal 3 dB passbands. ### Claim 9 A method for reducing self-desense in a downlink band due to two or more uplink bands of an uplink transmission, the method comprising: selecting two or more uplink bands; selecting a downlink band for a device using the two or more uplink bands; determining, by computation or retrieval or direct measurement, intermodulation distortion values for available uplink band combinations and available downlink bands; using the intermodulation distortion values to determine if there is intermodulation distortion for the downlink band given the two or more uplink bands; determining link margins of each of the two or more uplink bands by link budget estimation or retrieval or direct measurement; and increasing the modulation order of one or more uplink bands of the two or more uplink bands that has a greatest link margin. ### Claim 10 (depends on 9) The method of claim 9, wherein the selecting two or more uplink bands is performed in at least one transmitter of the uplink transmission. ### Claim 11 (depends on 9) The method of claim 9, wherein the determining intermodulation distortion values is performed in at least one transmitter of the uplink transmission. ### Claim 12 (depends on 9) The method of claim 9, wherein the increasing the modulation order is performed in at least one transmitter of the uplink transmission. ### Claim 13 (depends on 10) The method of claim 10, wherein the at least one transmitter is comprised in user equipment. ### Claim 14 (depends on 9) The method of claim 9, where the selecting uplink bands is performed in a receiver of the uplink transmission. ### Claim 15 (depends on 9) The method of claim 9, wherein the determining intermodulation distortion values is performed in a receiver of the uplink transmission. ### Claim 16 (depends on 9) The method of claim 9, wherein the increasing the modulation order is performed in a receiver of the uplink transmission. ### Claim 17 (depends on 14) The method of claim 14, wherein the receiver of is comprised in one or more base stations, or one or more integrated access and backhaul (IAB) units, or both. ### Claim 18 (depends on 9) The method of claim 9, wherein the selecting uplink bands is performed in part in a receiver of the uplink transmission and in part in a transmitter of the uplink transmission. ### Claim 19 (depends on 9) The method of claim 9, wherein the determining intermodulation distortion values is performed in part in a receiver of the uplink transmission and in part in a transmitter of the uplink transmission. ### Claim 20 (depends on 9) The method of claim 9, wherein the increasing the modulation order is performed in part in a receiver of the uplink transmission and in part in a transmitter of the uplink transmission. ### Claim 21 (depends on 9) The method of claim 9, further comprising comparing an average power of the two or more uplink bands. ### Claim 22 (depends on 9) The method of claim 9, further comprising increasing the modulation order of an uplink band of the two or more uplink bands that does not have the greatest link margin on condition that link margins of the two or more uplink bands have link margins within a threshold difference. ### Claim 23 (depends on 9) The method of claim 9, wherein the method is implemented on user equipment. ### Claim 24 (depends on 23) The method of claim 23, wherein the user equipment is a mobile phone. ### Claim 25 (depends on 9) The method of claim 9, wherein the method is implemented on a computer controlling a base station in communications with user equipment and the method further comprises the base station sending instructions on channel allocation and modulation selection to the user equipment. ### Claim 26 (depends on 25) The method of claim 25, wherein the computer is at the base station.