5G broadcast/multicast security
    52.
    发明授权

    公开(公告)号:US11601805B2

    公开(公告)日:2023-03-07

    申请号:US16992826

    申请日:2020-08-13

    Abstract: A user equipment (UE) may receive a quality of service (QoS) flow for a multicast or broadcast service that is secured with a multicast-broadcast key. The UE may transmit a data session establishment request to a service management function (SMF) for the multicast or broadcast service. The UE may receive at least one multicast-broadcast key for the PDU session. The UE may determine a radio bearer (RB) configuration for the multicast or broadcast service. The UE may receive one or more QoS flow packets for the multicast or broadcast service over the RB. The UE may decode the one or more QoS flow packets using the at least one multicast-broadcast key, or a key derived from the at least one multicast-broadcast key. Decoding may include decrypting, verifying the integrity, or a combination thereof.

    MITIGATING ACCESS CONGESTION ON A WIRELESS NETWORK

    公开(公告)号:US20220386380A1

    公开(公告)日:2022-12-01

    申请号:US17332929

    申请日:2021-05-27

    Abstract: Methods, systems, and devices for wireless communications are described. The method includes receiving a network access control broadcast including access control criteria associated with connecting to a base station, determining an access category associated with the UE and an access identity of the UE associated with the access category, where the access category of the UE is specific to a reduced capability classification of the UE, and selectively performing a random access procedure to connect to the base station in accordance with the access control criteria, the access identity of the UE, and the access category associated with the UE.

    Truncated identification indicators

    公开(公告)号:US11382151B2

    公开(公告)日:2022-07-05

    申请号:US16859450

    申请日:2020-04-27

    Abstract: Methods, systems, and devices for wireless communications are described that provide for truncated identification indicators. A user equipment (UE) may receive control signaling indicating a truncating configuration for an identification indicator. The truncating configuration may indicate a set of bits within an initial identification indicator to remove to generate a truncated identification indicator. The UE may remove the indicated set of bits and transmit the truncated identification indicator to a base station. The base station may receive the truncated identification indicator and reconstruct the initial identification indicator according to the truncating configuration. The base station may reconstruct the initial identification indicator by adding the set of bits (e.g., removed by the UE to generate the truncated identification indicator) to the truncated identification indicator.

    Delivery of control plane services in multi-access systems

    公开(公告)号:US11224005B2

    公开(公告)日:2022-01-11

    申请号:US16031434

    申请日:2018-07-10

    Abstract: Methods, systems, and devices are described for wireless communications. A wireless communication system may use access preferences to indicate a preferred access for communicating signaling for a control plane service. In some aspects, an AMF and a UE may establish access preferences for one or more control plane services and communicate signaling for the control plane service based on the established access preferences. In some cases, the UE may transmit modified access preferences for a control plane service to the AMF, and the UE and AMF may communicate signaling for the control plane service based on the modified access preferences. In some aspects, an AMF may also restrict the accesses used by a control plane service. A UE may also request that certain accesses are restricted for use by a control plane service.

    Policy provisioning at a user equipment (UE)

    公开(公告)号:US10701587B2

    公开(公告)日:2020-06-30

    申请号:US16158206

    申请日:2018-10-11

    Abstract: Aspects of the disclosure relate to a method of operating a user equipment for wireless communication with a network. In some aspects, the UE establishes a connection to a network and obtains a control plane message from the network. The control plane message may include one or more types of policy information if a size of the one or more types of policy information is less than or equal to a maximum payload size of the control plane message, or information indicating at least a network location from where the one or more types of policy information may be obtained by the UE over a user plane if the size of the one or more types of policy information is greater than the maximum payload size of the control plane message, or a combination thereof. Other aspects, embodiments, and features are also claimed and described.

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