Patent ID: 11902876
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 7:
8. A control plane device comprising:
storage memory configured to store program instructions; and
at least one processor configured to execute the program instructions from the storage memory such that the control plane device is at least configured to:
assign an internet protocol IP address to user equipment;
determine an IP address segment, wherein the IP address belongs to the IP address segment;
send information used to identify the IP address segment to a user plane function, wherein the IP address segment is used to advertise a routing policy,
send the IP address and an IP address mask to the user plane function; and
send a session establishment request message to the user plane function, wherein the session establishment request message comprises an IP address attribute-value pair and an IP address mask attribute-value pair, the IP address attribute-value pair carries the IP address, and the IP address mask attribute-value pair carries the IP address mask.