# US 2019/0174427 A1 · Transmitting content using guard band frequencies at reduced power > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0174427 A1 - Document ID: US20190174427A1 - Status: Published application - Kind: A1 - Application number: 15/828,951 - Filed: 2017-12-01 - Published: 2019-06-06 - Earliest claimed: 2017-12-01 - Assignees: AT&T Intellectual Property I, L.P.; AT&T Mobility II LLC - Applicants: AT&T Intellectual Property I, L.P.; AT&T Mobility II LLC - Inventors: James Gordon Beattie, JR.; James Hollister - Web page: https://patentgrep.com/patent/US20190174427A1 ## CPC - H04W 52/265: {taking into account the quality of service QoS} - H04L 5/0007: {the frequencies being orthogonal, e.g. OFDM(A) or DMT} - H04L 5/14: Two-way operation using the same type of signal, i.e. duplex - H04W 52/42: in systems with time, space, frequency or polarisation diversity - H04W 72/044: based on the type of the allocated resource - H04W 72/0453: Resources in frequency domain, e.g. a carrier in FDMA - H04W 88/02: Terminal devices - 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 The described technology is generally directed towards transmitting content in a guard band (marginal/edge) spectrum, in which the power level corresponds to a frequency associated with the transmission. One or more criteria such as a desired quality of service level of the content to transmit, measured noise data and so on are used to select a guard band frequency/power level for the transmission. The content transmission within this spectrum, at a lower downlink sector power level that protects adjacent channel users, allows delivery of multicast/broadcast content to a broad population of devices in an area, for example, and frees up primary carrier channels for other communications such as voice and high speed data communications. ## Claims ### Claim 1 A method, comprising: selecting, by a network device comprising a processor, a frequency to use for communication with a user equipment, wherein the frequency is within a guard band spectrum adjacent a frequency spectrum of a frequency division duplex dedicated channel or carrier or a time division duplex dedicated channel or carrier; determining, by the network device, a transmission power level associated with the frequency based on a determination criterion; and communicating, by the network device, information to the user equipment at the frequency and at the transmission power level. ### Claim 2 (depends on 1) The method of claim 1, wherein the selecting the frequency is based on evaluating a defined quality of service level of the information to be communicated to the user equipment. ### Claim 3 (depends on 1) The method of claim 1, wherein the frequency is a first frequency, and wherein the determining the transmission power level comprises determining the transmission power level based on a difference of the first frequency relative to a second frequency in the frequency spectrum of the transmitting device. ### Claim 4 (depends on 3) The method of claim 3, wherein the determining the transmission power level based on the difference of the first frequency relative to the second frequency comprises reducing the power transmission level as a relative frequency difference of the first frequency relative to the second frequency becomes smaller. ### Claim 5 (depends on 1) The method of claim 1, wherein the determining the transmission power level comprises determining the transmission power level based on noise measurement data. ### Claim 6 (depends on 5) The method of claim 5, further comprising, obtaining, by the network device, the noise measurement data at a location from which the communicating the information by the network device occurs. ### Claim 7 (depends on 5) The method of claim 5, further comprising, obtaining, by the network device, the noise measurement data at a location from which the communicating the information occurs and from adjacent site data adjacent to the location. ### Claim 8 (depends on 1) The method of claim 1, wherein the communicating the information to the user equipment at the frequency and at the transmission power level comprises transmitting a one-way data transmission from the network device to the user equipment. ### Claim 9 (depends on 1) The method of claim 1, further comprising, transmitting, by the network device, frequency data and power level data to the user equipment for use by the user equipment in transmitting other information back to the network device. ### Claim 10 (depends on 1) The method of claim 1, wherein the communicating the information to the user equipment at the frequency and at the transmission power level comprises transmitting video data to the user equipment. ### Claim 11 (depends on 1) The method of claim 1, wherein the communicating the information to the user equipment at the frequency at the transmission power level comprises transmitting a software update to the user equipment. ### Claim 12 (depends on 1) The method of claim 1, wherein the communicating the information to the user equipment at the frequency at the transmission power level comprises transmitting traffic information or weather information to the user equipment. ### Claim 13 (depends on 1) The method of claim 1, wherein the communicating the information to the user equipment at the frequency at the transmission power level comprises transmitting a text message to the user equipment. ### Claim 14 A system, comprising: a processor; and a memory that stores executable instructions that, when executed by the processor, facilitate performance of operations, the operations comprising: based on a selection criterion, identifying, by a network device, a selected frequency for communication with a user equipment, wherein the selected frequency is within a guard band spectrum that is adjacent a frequency spectrum of a transmitting entity other than the network device; identifying a determined transmission power level associated with the frequency based on the selected frequency relative to the frequency spectrum of the transmitting entity; and communicating information to the user equipment using the selected frequency at the determined transmission power level. ### Claim 15 (depends on 14) The system of claim 14, wherein the identifying the selected frequency comprises evaluating a defined quality of service level of the information. ### Claim 16 (depends on 14) The system of claim 14, wherein the identifying the determined transmission power level is further based on noise measurement data obtained relative to a site corresponding to the network device. ### Claim 17 (depends on 14) The system of claim 14, wherein the communicating the information to the user equipment comprises transmitting at least one of: video data, audio data, software, a data update, traffic information, weather information, a text message or an alert. ### Claim 18 A machine-readable storage medium, comprising executable instructions that, when executed by a processor of a network device, facilitate performance of operations, the operations comprising: based on a selection criterion, determining a selected frequency to use in connection with communicating with a user equipment, wherein the selected frequency is within a guard band spectrum next to a frequency spectrum of a transmitting device other than the network device; and communicating information to the user equipment according to the selected frequency at a frequency-based transmission power level. ### Claim 19 (depends on 18) The machine-readable storage medium of claim 18, wherein the determining the selected frequency based on the selection criterion comprises determining the frequency-based transmission power level based on noise data and data indicating how close the selected frequency is to the frequency spectrum of the transmitting device. ### Claim 20 (depends on 18) The machine-readable storage medium of claim 18, wherein the determining the selected frequency based on the selection criterion comprises determining the frequency-based transmission power level based on data indicating how close the selected frequency is to the frequency spectrum of the other transmitting entity, based on noise data, and based on a specified quality of service level for the information.