# US 10,455,429 B2 · Inter-radio access technology spectrum sharing > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,455,429 B2 - Document ID: US10455429B2 - Status: Granted - Kind: B2 - Application number: 15/917,257 - Filed: 2018-03-09 - Published: 2019-09-12 - Granted: 2019-10-22 - Earliest claimed: 2018-03-09 - Assignees: Google Inc. - Applicants: Google LLC - Inventors: Jibing Wang; Erik Richard Stauffer - Web page: https://patentgrep.com/patent/US10455429B2 ## CPC - H04W 16/14: Spectrum sharing arrangements {between different networks} - H04W 72/27: between access points - H04W 76/15: Setup of multiple wireless link connections - H04W 92/02: Inter-networking arrangements - H04W 88/06: adapted for operation in multiple networks {or having at least two operational modes}, e.g. multi-mode terminals - H04W 88/10: adapted for operation in multiple networks, e.g. multi-mode access points - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract The present disclosure describes techniques for, and systems that enable, inter-radio access technology spectrum sharing. For example, a wireless network provider can cause a legacy wireless network to share temporarily available communication resources with a new wireless network. By enabling the legacy wireless network to share its frequency spectrum with the new wireless network, the wireless network provider can temporarily expand a frequency spectrum of the new wireless network. By doing so, the wireless network can better utilize advantages of the new wireless network and provide a better experience to user devices equipped with the new communication technology. ## Claims ### Claim 1 A method for inter-radio access technology spectrum sharing performed by a base station of a wireless network, the method comprising: providing the wireless network over a first set of communication resources, the wireless network using a first radio access technology (RAT); receiving a notification that additional communication resources are temporarily available to the base station, the additional communication resources being useable to increase a bandwidth of the wireless network and the additional communication resources having been previously allocated to another wireless network using a second RAT that is different from the first RAT; providing the wireless network over a second set of communication resources, the second set of communication resources including the additional communication resources; and providing, based on the additional communication resources no longer being available to the base station, the wireless network over a third set of communication resources, the third set of communication resources excluding the additional communication resources. ### Claim 2 (depends on 1) The method as recited in claim 1, wherein the second set of communication resources has a bandwidth that is greater than a bandwidth of the first communication resources. ### Claim 3 (depends on 1) The method as recited in claim 1, further comprising, before receiving the notification, transmitting a request for the additional communication resources, the request transmitted to another base station or a mobility management entity that manages the other wireless network using the second RAT. ### Claim 4 (depends on 1) The method as recited in claim 1, wherein the base station receives the notification from another base station based on the other base station making available resources previously designated for low-priority wireless communications. ### Claim 5 (depends on 1) The method as recited in claim 1, wherein the second RAT uses a technology having a lower data transmission bandwidth per allocated communication resource relative to the first RAT. ### Claim 6 (depends on 1) The method as recited in claim 1, wherein: the first set of communication resources occupies a first frequency bandwidth; the additional communication resources occupy a second frequency bandwidth; and the first frequency bandwidth is adjacent to the second frequency bandwidth. ### Claim 7 (depends on 6) The method as recited in claim 6, wherein the second set of communication resources includes a third frequency bandwidth that is adjacent to the second frequency bandwidth. ### Claim 8 (depends on 1) The method as recited in claim 1, wherein: providing the wireless network over the second set of communication resources includes establishing a wireless connection with a user device; and providing the wireless network over the third set of communication resources includes terminating the wireless connection with the user device. ### Claim 9 A base station comprising: a processor; a hardware-based transceiver: and a computer-readable storage medium having stored thereon instructions that, responsive to execution by the processor, cause the processor to perform operations comprising: providing a first wireless network over a first set of communication resources and using a first radio access technology (RAT); receiving a notification that additional communication resources are temporarily available to the base station for increasing a bandwidth of the first wireless network, the additional communication resources having been previously allocated to a second wireless network using a second RAT that is different from the first RAT; providing the first wireless network over a second set of communication resources, the second set of communication resources including a portion of the additional communication resources; and providing, based on the additional communication resources being unavailable, of the first wireless network over a third set of communication resources. ### Claim 10 (depends on 9) The base station as recited in claim 9, wherein the additional communication resources are temporarily available in increments of transmission time intervals of the second wireless network. ### Claim 11 (depends on 9) The base station as recited in claim 9, wherein the base station receives the notification from another base station of the second wireless network. ### Claim 12 (depends on 9) The base station as recited in claim 9, wherein the second set of communication resources has a bandwidth that is greater than a bandwidth of the first set of communication resources. ### Claim 13 (depends on 9) The base station as recited in claim 9, wherein the third set of communication resources has a bandwidth that is substantially equal to a bandwidth of the first set of communication resources. ### Claim 14 A method for inter-radio access technology spectrum sharing performed by a base station of a wireless network, the method comprising: providing the wireless network over a first set of communication resources, the wireless network using a first radio access technology (RAT); determining that a portion of the first set of communication resources are temporarily available for use by another base station of another wireless network; transmitting, to the other base station, a notification that the portion of the first set of communication resources are available to the other base station for a time interval, the other base station using a second RAT that is different from the first RAT; determining, after the time interval, that the portion of the first set of communication resources are unavailable for use by the other base station; and providing the wireless network over the first set of communication resources including the portion of the first set of communication resources. ### Claim 15 (depends on 14) The method as recited in claim 14, further comprising receiving, from the other base station, a request to make available the portion of the first set of communication resources. ### Claim 16 (depends on 15) The method as recited in claim 15, further comprising, in response to receiving the request, making available the portion of the first set of communication resources by increasing a latency of one or more wireless connections of the wireless network. ### Claim 17 (depends on 14) The method as recited in claim 14, further comprising allocating the portion of the first set of communication resources as multimedia broadcast multicast service (MBMS) communication resources. ### Claim 18 (depends on 14) The method as recited in claim 14, further comprising transmitting one or more synchronization signals over the portion of the first set of communication resources during the time interval. ### Claim 19 (depends on 14) The method as recited in claim 14, wherein the time interval is one or more transmission time intervals. ### Claim 20 (depends on 14) The method as recited in claim 14, wherein the first RAT is a technology having a lower data transmission bandwidth per allocated communication resource relative to the second RAT.