Multicast broadcast service keys
US12309580B2 · kind B2 · utility
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14Claims
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Key dates
| Filing date | May 7, 2021 |
| Grant date | May 20, 2025 |
| Priority date | — |
| Expiry date | May 7, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W12/76
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A user equipment (UE) is configured to join a multicast broadcast service (MBS) session. The UE sends, to a network function, a protocol data unit (PDU) modification request comprising a request to join a multicast broadcast service (MBS) session, generates a first key (KMBS-UE), receives a PDU session modification complete message comprising an encrypted second key (KMBS) and a key identification (KID) corresponding to the KMBS and decrypts the Kiss using the KMBS-UE.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.