# US 9,883,406 B2 · Guard band usage for wireless data transmission > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,883,406 B2 - Document ID: US9883406B2 - Status: Granted - Kind: B2 - Application number: 15/139,998 - Filed: 2016-04-27 - Published: 2016-08-18 - Granted: 2018-01-30 - Earliest claimed: 2014-02-25 - Assignees: Microsoft Technology Licensing, LLC - Applicants: Microsoft Technology Licensing, LLC - Inventors: Amer A. Hassan; Todd Haugen; Paul W. Garnett; Paul William Alexander Mitchell - Web page: https://patentgrep.com/patent/US9883406B2 ## CPC - H04W 16/14: Spectrum sharing arrangements {between different networks} - H04W 24/00: Supervisory, monitoring or testing arrangements - H04W 24/02: Arrangements for optimising operational condition - H04W 72/0453: Resources in frequency domain, e.g. a carrier in FDMA - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract Techniques for guard band usage for wireless data transmission are described. In at least some embodiments, white spaces in the radio spectrum (e.g., television (TV) white spaces) and guard bands between licensed bands of the radio spectrum are leveraged for data transmission. Based on available white spaces and service deployment in the licensed bands, various decisions can be made regarding how to leverage white spaces and guard bands for wireless data transmission. ## Claims ### Claim 1 A system comprising: one or more processors; and one or more computer-readable storage media storing computer-executable instructions that are executable by the one or more processors to perform operations including: ascertaining available white spaces in a region of the radio spectrum; determining whether there is service deployment in a licensed band adjacent to a guard band in the region, said determining including determining that there is not infrastructure in place for deployment of service in the licensed band; and providing a notification of identifiers for the available white spaces and an indication that there is not infrastructure in place for service deployment in the licensed band to enable a client device to utilize the guard band and one or more of the white spaces for wireless data transmission. ### Claim 2 (depends on 1) A system as described in claim 1, wherein the guard band occurs between a television band and a downlink band. ### Claim 3 (depends on 1) A system as described in claim 1, wherein the licensed band comprises one or more of a downlink band or an uplink band adjacent to the guard band. ### Claim 4 (depends on 1) A system as described in claim 1, wherein the operations further comprise: receiving an indication of a change to white space availability in the region; and providing a notification of the change to the white space availability to the client device. ### Claim 5 (depends on 4) A system as described in claim 4, wherein the change comprises one or more of: at least one additional white space is available; or a previously-available white space is no longer available. ### Claim 6 (depends on 1) A system as described in claim 1, wherein the operations further comprise: receiving a request for a transmission channel for transmitting data for a specific application; selecting one or more transmission channels based on transmission parameters for the specific application, the one or more transmission channels being selected from the available white spaces and the guard band; and providing a notification identifying the one or more transmission channels. ### Claim 7 (depends on 6) A system as described in claim 6, wherein the transmission parameters comprise one or more of a noise floor threshold, a maximum allowed amount of channel traffic, or a minimum channel bandwidth for the specific application. ### Claim 8 (depends on 1) A system as described in claim 1, wherein said ascertaining is performed in response to a query from the client device for an available wireless channel in a particular geographical region. ### Claim 9 A method comprising: ascertaining an available white space in a region of the radio spectrum; determining whether there is service deployment in a licensed band adjacent to a guard band in the region, said determining including determining that there is not infrastructure in place for deployment of service in the licensed band; and providing a notification of an identifier for the available white space and an indication that there is not infrastructure in place for service deployment in the licensed band to enable a client device to utilize the guard band and the white space for wireless data transmission. ### Claim 10 (depends on 9) A method as described in claim 9, wherein the licensed band comprises one or more of a downlink band or an uplink band adjacent to the guard band. ### Claim 11 (depends on 9) A method as described in claim 9, further comprising: receiving an indication of a change to white space availability in the region; and providing a notification of the change to the white space availability to the client device. ### Claim 12 (depends on 11) A method as described in claim 11, wherein the change comprises an indication that the white space is no longer available. ### Claim 13 (depends on 9) A method as described in claim 9, further comprising: receiving a request for a transmission channel for transmitting data for a specific application; selecting one or more transmission channels based on transmission parameters for the specific application, the one or more transmission channels being selected from the white space and the guard band; and providing a notification identifying the one or more transmission channels. ### Claim 14 (depends on 13) A method as described in claim 13, wherein the transmission parameters comprise one or more of a noise floor threshold, a maximum allowed amount of channel traffic, or a minimum channel bandwidth for the specific application. ### Claim 15 (depends on 9) A method as described in claim 9, wherein said ascertaining is performed in response to a query from the client device for an available wireless channel in a particular geographical region. ### Claim 16 A method comprising: receiving a query from a client device for an available wireless channel in a particular geographical region; ascertaining an available white space in the particular geographical region; determining whether there is service deployment in a licensed band adjacent to a guard band in a particular portion of radio spectrum in which the available white space resides, said determining including determining there is not infrastructure in place for deployment of service in the licensed band; and providing a notification of an identifier for the available white space and an indication that there is not infrastructure in place for service deployment in the licensed band to enable a client device to utilize the guard band and the white space for wireless data transmission. ### Claim 17 (depends on 16) A method as described in claim 16, wherein said ascertaining is based on the available white space meeting a transmission parameter for a specific application. ### Claim 18 (depends on 16) A method as described in claim 16, further comprising: receiving an indication of a change to white space availability in the region; and providing a notification of the change to the white space availability to the client device. ### Claim 19 (depends on 18) A method as described in claim 18, wherein the change comprises one or more of: the white space is no longer available; or at least one additional white space is available. ### Claim 20 (depends on 16) A method as described in claim 16, wherein said determining comprises determining that there is service deployment in the licensed band, and where the notification indicates that there is service deployment in the licensed band.