阅读说明：本技术 一种确定ssc模式的方法及装置 (Method and device for determining SSC mode ) 是由 朱强华 朱奋勤 吴问付 于 2019-02-13 设计创作，主要内容包括：本申请公开了一种确定SSC模式的方法及装置,该方法包括：终端设备确定请求的SSC模式,以及向第一核心网网元发送第一请求消息,所述第一请求消息用于请求建立第一PDU会话,所述第一请求消息中包括所述第一PDU会话的会话类型、请求的SSC模式和第一指示信息；由于终端设备向第一核心网网元发送的第一请求消息中可携带第一指示信息,用于指示终端设备请求的SSC模式不允许被修改,从而避免后续网络侧的网元产生错误的决定,比如将请求的SSC模式修改为终端设备不支持的其它SSC模式。(The application discloses a method and a device for determining an SSC mode, wherein the method comprises the following steps: the method comprises the steps that terminal equipment determines a requested SSC mode and sends a first request message to a first core network element, wherein the first request message is used for requesting to establish a first PDU session, and the first request message comprises a session type of the first PDU session, the requested SSC mode and first indication information; since the first request message sent by the terminal device to the network element of the first core network may carry first indication information for indicating that the SSC pattern requested by the terminal device is not allowed to be modified, thereby avoiding a subsequent network element at the network side from making an erroneous decision, such as modifying the requested SSC pattern into another SSC pattern that is not supported by the terminal device.)