# US 12,225,419 B2 · Systems and methods for defining an exclusion zone to protect an earth station from user equipment interference > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,225,419 B2 - Document ID: US12225419B2 - Status: Granted - Kind: B2 - Application number: 17/454,333 - Filed: 2021-11-10 - Published: 2022-04-07 - Granted: 2025-02-11 - Earliest claimed: 2020-08-14 - Assignees: Verizon Patent and Licensing Inc. - Applicants: Verizon Patent and Licensing Inc. - Inventors: Jignesh S. Panchal - Web page: https://patentgrep.com/patent/US12225419B2 ## CPC - H04W 36/0079: {in case of hand-off failure or rejection} - H04W 48/04: based on user or terminal location or mobility data, e.g. moving direction, speed - H04W 4/022: {with dynamic range variability} - H04W 36/20: for optimising the interference level - H04W 36/322: {by location data} - H04W 76/18: Management of setup rejection or failure - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract A network device may determine a geographical distance between an earth station and the network device. The network device may determine a location for an exclusion zone, associated with the earth station, based on the geographical distance. The network device may generate an exclusion zone system information block that identifies the location for the exclusion zone. The network device may provide, to the user equipment, the exclusion zone system information block. ## Claims ### Claim 1 A method comprising: determining, by a network device of a radio access network, a geographical distance between an earth station and the network device; determining, by the network device and based on the geographical distance, a location for an exclusion zone, associated with the earth station; generating, by the network device, an exclusion zone system information block that indicates the location for the exclusion zone; and providing, by the network device and to a user equipment, the exclusion zone system information block to protect the earth station from experiencing interference signals from the user equipment. ### Claim 2 (depends on 1) The method of claim 1, wherein, when the user equipment is in an idle state or an inactive state, providing the exclusion zone system information block comprises: providing the exclusion zone system information block to the user equipment, prior to the user equipment waking up or powering up, wherein the exclusion zone system information block causes the user equipment to not access the radio access network when the user equipment is geographically located within the exclusion zone. ### Claim 3 (depends on 1) The method of claim 1, wherein, when the user equipment is in a mobility state or a handover state, the method further comprises: receiving a measurement report from the user equipment to be handed over to another radio access network; providing a handover request to the other radio access network based on the measurement report; and receiving, from the other radio access network, a handover request acknowledgement that includes the exclusion zone system information block, wherein providing the exclusion zone system information block comprises: providing, to the user equipment, a handover command that includes the exclusion zone system information block, wherein the exclusion zone system information block causes the user equipment to reject the handover command when the user equipment is geographically located within the exclusion zone. ### Claim 4 (depends on 1) The method of claim 1, wherein the network device is a first network device and the geographical distance is a first geographical distance; wherein the method further comprises: receiving a value identifying a second geographical distance between the earth station and a second network device; and wherein determining the location for the exclusion zone comprises: determining the location for the exclusion zone based on the first geographical distance and the second geographical distance. ### Claim 5 (depends on 1) The method of claim 1, wherein determining the geographical distance comprises: determining the geographical distance based on a radio signal strength of the earth station. ### Claim 6 (depends on 1) The method of claim 1, wherein, when the user equipment is entering the exclusion zone, the method further comprises: receiving, from the user equipment, a first request to hand over the user equipment to another frequency or to another radio access network; receiving, from the user equipment, a second request for a connection release from the radio access network; handing over the user equipment to the other frequency or to the other radio access network based on the first request; and releasing the user equipment from a connection with the radio access network based on the second request. ### Claim 7 (depends on 1) The method of claim 1, wherein, after the user equipment has exited the exclusion zone, the method further comprises: receiving, from the user equipment, a message indicating that the user equipment has exited from the exclusion zone; and removing the user equipment from an exclusion zone list based on the message. ### Claim 8 A network device of a radio access network, the network device comprising: one or more processors configured to: determine a geographical distance between an earth station and the network device; determine a probability of a user equipment, within the geographical distance, impacting operation of the earth station; determine a location for an exclusion zone, associated with the earth station, based on the geographical distance and the probability; generate an exclusion zone system information block that indicates the location for the exclusion zone; and provide, to the user equipment, the exclusion zone system information block. ### Claim 9 (depends on 8) The network device of claim 8, wherein, when the user equipment is in a carrier aggregation state and the radio access network is a primary radio access network, the one or more processors are further configured to: provide a request for the exclusion zone system information block to a secondary radio access network; receive, from the secondary radio access network, the exclusion zone system information block based on the request; provide, to the user equipment, the exclusion zone system information block with a request to add the secondary radio access network; and receive, from the user equipment and when the user equipment is geographically located within the exclusion zone, a reject message indicating that the user equipment rejects adding the secondary radio access network. ### Claim 10 (depends on 9) The network device of claim 9, wherein the one or more processors are further configured to: start a timer associated with preventing addition of the secondary radio access network when the user equipment rejects adding the secondary radio access network; and permit the user equipment to add the secondary radio access network when the timer expires. ### Claim 11 (depends on 8) The network device of claim 8, wherein, when determining the location for the exclusion zone, the one or more processors are further configured to: determine location coordinate points for the exclusion zone. ### Claim 12 (depends on 8) The network device of claim 8, wherein, when the user equipment is in a dual connectivity state and the radio access network is a primary radio access network, the one or more processors are further configured to: provide, to a secondary radio access network, a request for dual connectivity with the secondary radio access network; receive, from the secondary radio access network, the exclusion zone system information block based on the request; provide, to the user equipment, the exclusion zone system information block with a request to add the secondary radio access network for dual connectivity; and receive, from the user equipment and when the user equipment is geographically located within the exclusion zone, a reject message indicating that the user equipment rejects adding the secondary radio access network for dual connectivity. ### Claim 13 (depends on 12) The network device of claim 12, wherein the one or more processors are further configured to: start a timer associated with preventing addition of the secondary radio access network for dual connectivity when the user equipment rejects adding the secondary radio access network for dual connectivity; and permit the user equipment to add the secondary radio access network for dual connectivity when the timer expires. ### Claim 14 (depends on 8) The network device of claim 8, wherein the one or more processors are further configured to: receive a plurality of values identifying a plurality of geographical distances between the earth station and a corresponding plurality of other network devices; and wherein the one or more processors, when determining the location for the exclusion zone, are configure to: determine the location for the exclusion zone based on the geographical distance and the plurality of geographical distances. ### Claim 15 A non-transitory computer-readable medium storing instructions, the instructions comprising: one or more instructions that, when executed by one or more processors of a network device of a radio access network, cause the one or more processors to: determine a geographical distance between an earth station and the network device; determine a location for an exclusion zone, associated with the earth station, based on the geographical distance, wherein the exclusion zone is to prevent one or more user equipment from interfering with a signal of the earth station; generate an information block that indicates the location for the exclusion zone; and provide, to the user equipment, the information block. ### Claim 16 (depends on 15) The non-transitory computer-readable medium of claim 15, wherein, when the user equipment is in an idle state or an inactive state, the one or more instructions, that cause the one or more processors to provide the information block, cause the one or more processors to: provide the information block to the user equipment, prior to the user equipment waking up or powering up, wherein the information block causes the user equipment to not access the radio access network when the user equipment is geographically located within the exclusion zone. ### Claim 17 (depends on 15) The non-transitory computer-readable medium of claim 15, wherein, when the user equipment is in a mobility state or a handover state, the instructions further comprise: one or more instructions that, when executed by the one or more processors, cause the one or more processors to: receive a measurement report from the user equipment to be handed over to another radio access network; provide a handover request to the other radio access network based on the measurement report; and receive, from the other radio access network, a handover request acknowledgement that includes the information block, wherein the one or more instructions, that cause the one or more processors to provide the information block, cause the one or more processors to: provide, to the user equipment, a handover command that includes the information block, wherein the information block causes the user equipment to reject the handover command when the user equipment is geographically located within the exclusion zone. ### Claim 18 (depends on 15) The non-transitory computer-readable medium of claim 15, wherein, when the user equipment is entering the exclusion zone, the instructions further comprise: one or more instructions that, when executed by the one or more processors, cause the one or more processors to: receive, from the user equipment, a first request to hand over the user equipment to another frequency or to another radio access network; receive, from the user equipment, a second request for a connection release from the radio access network; hand over the user equipment to the other frequency or to the other radio access network based on the first request; and release the user equipment from a connection with the radio access network based on the second request. ### Claim 19 (depends on 15) The non-transitory computer-readable medium of claim 15, wherein, when the user equipment is in a carrier aggregation state and the radio access network is a primary radio access network, the instructions further comprise: one or more instructions that, when executed by the one or more processors, cause the one or more processors to: provide a request for the information block to a secondary radio access network; receive, from the secondary radio access network, the information block based on the request; provide, to the user equipment, the information block with a request to add the secondary radio access network; and receive, from the user equipment and when the user equipment is geographically located within the exclusion zone, a reject message indicating that the user equipment rejects adding the secondary radio access network. ### Claim 20 (depends on 15) The non-transitory computer-readable medium of claim 15, wherein, when the user equipment is in a dual connectivity state and the radio access network is a primary radio access network, the instructions further comprise: one or more instructions that, when executed by the one or more processors, cause the one or more processors to: provide, to a secondary radio access network, a request for dual connectivity with the secondary radio access network; receive, from the secondary radio access network, the information block based on the request; provide, to the user equipment, the information block with a request to add the secondary radio access network for dual connectivity; and receive, from the user equipment and when the user equipment is geographically located within the exclusion zone, a reject message indicating that the user equipment rejects adding the secondary radio access network for dual connectivity.