Node handover method, apparatus, and system in a software defined protocol network

A node handover apparatus in a software defined protocol (SDP) network, the apparatus comprising:

• a receiver, a processor and a memory storing instructions for execution by the processor;
• the receiver configured to cooperate with the processor to receive a protocol configuration request message sent by a target access node in response to a handover request message from a source access node accessed by user equipment (UE) before a node handover,
• wherein the protocol configuration request message comprises a quality of service parameters of the UE,
• wherein the target access node is a node accessed by the UE after the node handover, and
• wherein both the source and target access node are in indirect communication with a gateway;
• the processor, when executing the instructions stored in the memory, is configured to provide at least the following operations:
• configure, according to the quality of service parameters, a first function module for providing a service of the UE,
• wherein the first function module is configured at one or more protocol layers of the UE;
• determine, according to the service provided by the first function module and a topology of the SDP network, a target node that bears the service of the first function module after the node handover,
• wherein the target node is determined by the topology of the SDP network to include the target access node having indirect access to the gateway and a node having direct access to the gateway;
• configure, according to the first function module and the network topology of the SDP network, a second function module for the target node to implement a data stream exchange between the UE and the gateway through a data stream transmission between the gateway and the target node,
• wherein the second function module is configured at one or more protocol layers of the UE;
• determine, according to the second function module, a first forwarding entry group required for a data stream transmission between a source node and the target node,
• wherein the source node is determined by the topology of the SDP network to include the source access node having indirect access to the gateway and a node having direct access to the gateway,
• wherein the source node is configured to bear the first function module associated with the service of the UE before the node handover to implement the data stream exchange between the UE and the gateway by the source access node sending data temporarily stored thereon to the target node according to the first forwarding entry group, and the source access node receiving a downlink data stream from the Internet through the gateway and forwarding the downlink data stream to the UE;
• and
• determine, according to the second function module, a second forwarding entry group required for the data stream transmission between the gateway and the target node by the gateway generating a downlink data stream end mark and sending the downlink data stream end mark to the source access node according to the second forwarding entry group, and the UE performing the data stream exchange with the gateway through the target node.

A node handover apparatus in a software defined protocol (SDP) network, the apparatus comprising:

• at least one processor, at least one network interface, a memory, and at least one communications bus connecting the at least one processor, the at least one network interface and the memory, wherein the processor is configured to execute a program stored in the memory, and the program comprises instructions for at least the following operations:
• receiving a protocol configuration request message sent by a target access node in response to a handover request message from a source access node accessed by user equipment (UE) before a node handover,
• wherein the protocol configuration request message comprises a quality of service parameters of the UE,
• wherein the target access node is a node accessed by the UE after the node handover, and
• wherein both the source and target access nodes are in indirect communication with a gateway;
• configuring, according to the quality of service parameters, a first function module for providing a service of the UE,
• wherein the first function module is configured at one or more protocol layers of the UE;
• determining, according to the service provided by the first function module and a topology of the SDP network, a target node that bears the service of the first function module after the node handover,
• wherein the target node is determined by the topology of the SDP network to include the target access node having indirect access to the gateway and a node having direct access to the gateway;
• configuring, according to the function module and the topology of the SDP network, a second function module for the target node to implement a data stream exchange between the UE and the gateway through a data stream transmission between the gateway and the target node,
• wherein the second function module is configured at one or more protocol layers of the UE;
• determining, according to the second function module, a first forwarding entry group required for a data stream transmission between a source node and the target node,
• wherein the source node is determined by the topology of the SDP network to include the source access node having indirect access to the gateway and a node having direct access to the gateway, and
• wherein the source node is configured to bear the first function module associated with the service of the UE before the node handover to implement the data stream exchange between the UE and the gateway by the source access node sending data temporarily stored thereon to the target node according to the first forwarding entry group, and the source access node receiving a downlink data stream from the Internet through the gateway and forwarding the downlink data stream to the UE;
• and
• determining, according to the second function module, a second forwarding entry group required for the data stream transmission between the gateway and the target node by the gateway generating a downlink data stream end mark and sending the downlink data stream end mark to the source access node according to the second forwarding entry group, and the UE performing the data stream exchange with the gateway through the target node.