Patent ID: 11968575
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 4:
5. The method according to claim 1, wherein the method further comprises:
in response to determining that the terminal device moves to the second network and accesses the second network, sending, by the terminal device, a NAS message to a core network control plane network element of the first network, wherein the NAS message indicates that the terminal device has accessed the second network;
receiving, by the terminal device, a third RRC message from the access network device of the first network, wherein the third RRC message comprises one or more of the following information: a session identifier of a PDU session of the first network of the terminal device, a device identifier of the terminal device, a cause for resuming the transmission, or information indicating whether to immediately resume the transmission; and
resuming, by the terminal device, a context of the first network based on the third RRC message.