ENCRYPTION KEY TRANSFER METHOD AND DEVICE FOR ROAMING USERS IN COMMUNICATION NETWORKS
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United States of America
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Issued Date -
Apr 10, 2025
app pub date -
Dec 17, 2024
filing date -
Dec 17, 2024
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Abstract
This disclosure generally relates to transferring encryption key to a VPLMN in wireless communication. Performed by first network element, the method includes: transmitting a query message to a second network element, to request an identification of a NF entity, wherein the query message comprises an identifier of a wireless device, and wherein the network function is an entity in the VPLMN for storing encryption keys; receiving, from the second network element, a response to the query message, the response comprising the identification of the NF entity; and transmitting, to the NF entity based on the identification of the NF entity, a first message comprising an encryption key, wherein the AF entity is located in the HPLMN or a DN external to the HPLMN and the VPLMN.
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