Method and apparatus for access, handover, and encryption control of a UE

A first node in a communication system, the first node comprising:

• a transceiver;
• and
• a processor coupled with the transceiver and configured to:
• transmit, to a second node, a first message including a radio resource control (RRC) message associated with a terminal and an identifier allocated to the terminal by the first node to identify the terminal over an interface between the first node and the second node;
• receive, from the second node, a second message including an identifier allocated to the terminal by the second node to identify the terminal over the interface, an identifier of a data radio bearer, and uplink tunnel information associated with the data radio bearer;
• and
• transmit, to the second node, a third message as a response to the second message, the third message including downlink tunnel information associated with the data radio bearer,
• wherein the first node includes a radio link control (RLC) layer, a medium access control (MAC) layer and a physical (PHY) layer, and
• wherein the second node includes an RRC layer and a packet data convergence protocol (PDCP) layer.

A method performed by a second node in a communication system, the method comprising:

• receiving, from a first node, a first message including a radio resource control (RRC) message associated with a terminal and an identifier allocated to the terminal by the first node to identify the terminal over an interface between the first node and the second node;
• transmitting, to the first node, a second message including an identifier allocated to the terminal by the second node to identify the terminal over the interface, an identifier of a data radio bearer, and uplink tunnel information associated with the data radio bearer;
• and
• receiving, from the first node, a third message as a response to the second message, the third message including downlink tunnel information associated with the data radio bearer,
• wherein the first node includes a radio link control (RLC) layer, a medium access control (MAC) layer and a physical (PHY) layer, and
• wherein the second node includes an RRC layer and a packet data convergence protocol (PDCP) layer.

A second node in a communication system, the second node comprising:

• a transceiver;
• and
• a processor coupled with the transceiver and configured to:
• receive, from a first node, a first message including a radio resource control (RRC) message associated with a terminal and an identifier allocated to the terminal by the first node to identify the terminal over an interface between the first node and the second node;
• transmit, to the first node, a second message including an identifier allocated to the terminal by the second node to identify the terminal over the interface, an identifier of a data radio bearer, and uplink tunnel information associated with the data radio bearer;
• and
• receive, from the first node, a third message as a response to the second message, the third message including downlink tunnel information associated with the data radio bearer,
• wherein the first node includes a radio link control (RLC) layer, a medium access control (MAC) layer and a physical (PHY) layer, and
• wherein the second node includes an RRC layer and a packet data convergence protocol (PDCP) layer.

A method of a communication system including a first node and a second node, the method comprising:

• transmitting, from the first node to the second node, a first message including a radio resource control (RRC) message associated with a terminal and an identifier allocated to the terminal by the first node to identify the terminal over an interface between the first node and the second node;
• transmitting, from the second node to the first node, a second message including an identifier allocated to the terminal by the second node to identify the terminal over the interface, an identifier of a data radio bearer, and uplink tunnel information associated with the data radio bearer;
• and
• transmitting, from the first node to the second node, a third message as a response to the second message, the third message including downlink tunnel information associated with the data radio bearer,
• wherein the first node includes a radio link control (RLC) layer, a medium access control (MAC) layer and a physical (PHY) layer, and
• wherein the second node includes an RRC layer and a packet data convergence protocol (PDCP) layer.

A communication system, comprising:

• a first node;
• and
• a second node,
• wherein the first node comprises:
• a first node transceiver;
• and
• a first node processor coupled with the first node transceiver and configured to:
• transmit, to a second node, a first message including a radio resource control (RRC) message associated with a terminal and an identifier allocated to the terminal by the first node to identify the terminal over an interface between the first node and the second node;
• receive, from the second node, a second message including an identifier allocated to the terminal by the second node to identify the terminal over the interface, an identifier of a data radio bearer, and uplink tunnel information associated with the data radio bearer;
• and
• transmit, to the second node, a third message as a response to the second message, the third message including downlink tunnel information associated with the data radio bearer,
• wherein the second node comprises:
• a second node transceiver;
• and
• a second node processor coupled with the second node transceiver and configured to:
• receive, from the first node, the first message including the RRC message associated with the terminal and the identifier allocated to the terminal by the first node to identify the terminal over the interface between the first node and the second node;
• transmit, to the first node, the second message including the identifier allocated to the terminal by the second node to identify the terminal over the interface, the identifier of the data radio bearer, and the uplink tunnel information associated with the data radio bearer;
• and
• receive, from the first node, the third message as the response to the second message, the third message including the downlink tunnel information associated with the data radio bearer,
• wherein the first node includes a radio link control (RLC) layer, a medium access control (MAC) layer and a physical (PHY) layer, and
• wherein the second node includes an RRC layer and a packet data convergence protocol (PDCP) layer.