# US 10,455,488 B1 · Discontinuous access to unlicensed spectrum in a new radio environment > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,455,488 B1 - Document ID: US10455488B1 - Status: Granted - Kind: B1 - Application number: 16/277,284 - Filed: 2019-02-15 - Granted: 2019-10-22 - Earliest claimed: 2019-02-15 - Assignees: AT&T Intellectual Property I, L.P. - Applicants: At&T Intellectual Property I, L.P. - Inventors: Ralf Bendlin; Aditya Chopra; Arunabha Ghosh; Abdulrauf Hafeez - Web page: https://patentgrep.com/patent/US10455488B1 ## CPC - H04W 48/16: Discovering, processing access restriction or access information - H04W 4/20: Services signaling; Auxiliary data signalling, i.e. transmitting data via a non-traffic channel - H04W 4/70: Services for machine-to-machine communication [M2M] or machine type communication [MTC] - H04W 16/14: Spectrum sharing arrangements {between different networks} - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract Various embodiments disclosed herein provide for facilitating a discontinuous access to unlicensed spectrum in a new radio access environment. According an embodiment, a system can comprise performing a scanning procedure that determines whether a first subband and a second subband is available for transmission. The system can further facilitate determining whether the first subband and the second subband are adjacent, wherein a first channel formed at the first subband comprising a first guard band and a second channel formed at the second subband comprising a second guard band that is adjacent to the first guard band. The system can further facilitate in response to determining that the first subband and the second subband are adjacent and available for transmission, eliminating the first guard band and the second guard band. ## Claims ### Claim 1 A system, comprising: a processor; and a memory that stores executable instructions that, when executed by the processor, facilitate performance of operations, comprising: performing a scanning procedure that determines whether a first subband and a second subband are available for transmission; determining whether the first subband and the second subband are adjacent, wherein a first channel formed at the first subband comprising a first guard band and a second channel formed at the second subband comprising a second guard band that is adjacent to the first guard band; and in response to the determining indicating that the first subband and the second subband are adjacent and the scanning procedure indicating that the first subband and the second subband are available for transmission, eliminating parts of the first guard band and parts of the second guard band. ### Claim 2 (depends on 1) The system of claim 1, wherein the operations further comprise: transmitting an indication to notify a receiver that the first subband and the second subband are available for transmission for a first period of time. ### Claim 3 (depends on 1) The system of claim 1, wherein the operations further comprise; detecting an energy at the first subband; and determining whether the energy is below a threshold. ### Claim 4 (depends on 1) The system of claim 1, wherein the first guard band is allocated a first frequency bandwidth and the second guard band is allocated a second frequency bandwidth. ### Claim 5 (depends on 1) The system of claim 1, wherein the operations further comprise: transmitting data selected from a first data group using frequency allocated to parts of the first guard band and parts of the second guard band. ### Claim 6 (depends on 5) The system of claim 5, wherein the first data group comprises transmit data and signal data. ### Claim 7 (depends on 1) The system of claim 1, wherein the eliminating parts of the first guard band and parts of the second guard band comprises adjusting band-pass filters associated with the first guard band and the second guard band. ### Claim 8 (depends on 1) The system of claim 1, wherein the eliminating parts of the first guard band and parts of the second guard band comprises reallocating a portion of frequency associated with the first guard band and the second guard band to user channel data. ### Claim 9 (depends on 1) The system of claim 1, wherein the eliminating parts of the first guard band and parts of the second guard band comprises reallocating a portion of frequency associated with the first guard band and the second guard band to user signaling data. ### Claim 10 (depends on 1) The system of claim 1, wherein the operations further comprise: transmitting user data using the first subband and the second subband, wherein the user data comprise in part data essential to a receiver. ### Claim 11 A method, comprising: scanning, by a device comprising a processor, to determine whether a first subband and a second subband are idle; determining, by the device, whether the first subband and the second subband are adjacent, wherein a first channel formed within the first subband comprising a first guard band and a second channel formed within the second subband comprising a second guard band that is adjacent to the first guard band; and in response to the first subband and the second subband being determined to be adjacent and idle, eliminating, by the device, parts of the first guard band and parts of the second guard band. ### Claim 12 (depends on 11) The method of claim 11, wherein the scanning procedure comprises detecting an energy level on the first channel and determining that the first subband is idle in response to the energy level being determined to be below a threshold. ### Claim 13 (depends on 11) The method of claim 11, further comprising: indicating, by the device, to a transmitter that the first subband and the second subband are available for transmission for a first period of time. ### Claim 14 (depends on 11) The method of claim 11, further comprising: transmitting, by the device, a group of data selected from a first data group using a portion of frequency allocated to parts of the first guard band and parts of the second guard band. ### Claim 15 (depends on 11) The method of claim 11, wherein eliminating parts of the first guard band and parts of the second guard band is performed by reallocating a portion of frequency associated with the first guard band and the second guard band to user channel data. ### Claim 16 (depends on 11) The method of claim 11, wherein eliminating parts of the first guard band and parts of the second guard band is performed by reallocating a portion of frequency associated with the first guard band and the second guard band to user signaling data. ### Claim 17 (depends on 11) The method of claim 11, wherein eliminating parts of the first guard band and parts of the second guard band is performed by adjusting band-pass filters associated with the first guard band and the second guard band. ### Claim 18 (depends on 11) The method of claim 11, further comprising: transmitting, by the device, a portion of user data after a guard time, wherein the guard time does not contain essential information for a receiver. ### Claim 19 A machine-readable storage medium, comprising executable instructions that, when executed by a processor, facilitate performance of operations, comprising: performing a scanning procedure that determines whether a first subband and a second subband contains an energy level below a threshold; determining whether the first subband and the second subband are adjacent, wherein a first channel formed within the first subband comprising a first guard band and a second channel formed within the second subband comprising a second guard band that is adjacent to the first guard band; and in response to the determining indicating that the first subband and the second subband are adjacent and the scanning procedure determining that the energy level is below the threshold, eliminating parts of the first guard band and parts of the second guard band. ### Claim 20 (depends on 19) The machine-readable storage medium of claim 19, wherein the operations further comprising: transmitting a group of data selected from a first group using a portion of frequency allocated to the first guard band and the second guard band.