Network architecture and security with simplified mobility procedure

A client device comprising:

• a wireless communication circuit configured to communicate with a network access node;
• and
• a processing circuit coupled to the wireless communication circuit, the processing circuit configured to
• obtain information that includes a first client device context generated at a first network device that serves a first service area of a network, the first client device context including first network state information associated with the client device;
• enter a second service area of the network served by a second network device;
• transmit, in the second service area, data and the obtained information;
• and
• receive a service relocation message in response to the transmission, the service relocation message including information associated with the second network device.

A method for a first network device configured to serve a first service area of a network, comprising:

• receiving, from a client device that has entered the first service area from a second service area, a data packet intended for a second network device configured to serve the second service area;
• transmitting the data packet and a relocation request to the second network device;
• and
• transmitting a service relocation message to the client device, the service relocation message including information associated with the first network device.

A first network device configured to serve a first service area of a network, comprising:

• a memory device;
• and
• a processing circuit coupled to the memory device, the processing circuit configured to
• receive, from a client device that has entered the first service area from a second service area, a data packet intended for a second network device configured to serve the second service area;
• transmit the data packet and a relocation request to the second network device;
• and
• transmit a service relocation message, the service relocation message including information associated with the first network device.

A method for a first network device configured to serve a first service area of a network, comprising:

• receiving a data packet from a second network device configured to serve a second service area, wherein the data packet is generated by a client device that has entered the second service area from the first service area;
• receiving a relocation request from the second network device;
• transmitting the data packet to a network entity;
• and
• transmitting a relocation response message to the second network device, the relocation response message including a client device context, where the client device context includes network state information associated with the client device.

A first network device configured to serve a first service area of a network, comprising:

• a memory device;
• and
• a processing circuit coupled to the memory device, the processing circuit configured to
• receive a data packet from a second network device configured to serve a second service area, wherein the data packet is generated by a client device that has entered the second service area from the first service area;
• receive a relocation request from the second network device, transmitting the data packet to a network entity;
• and
• transmit a relocation response message to the second network device, the relocation response message including a client device context, where the client device context includes network state information associated with the client device.

A network access node, comprising:

• a wireless communication circuit configured for communications with a client device:
• a processing circuit coupled to the wireless communication circuit, the processing circuit configured to
• receive a data packet from a client device;
• and
• forward the data packet to a first network function implemented at a first network device, wherein the first network function is associated with the network access node and is configured to process at least one of user plane traffic or control plane traffic for the client device when the client device is in a reduced data transfer mode.