Radio resource control rrc message processing method, apparatus, and system

Abstract

Embodiments of the present invention relate to a radio resource control RRC message processing method, apparatus, and system. The method includes: setting up, by a first serving node, a connection to a first anchor node, and setting up, by the first anchor node, a connection to a mobility management entity MME; receiving, by the first serving node, a radio resource control RRC message sent by first user equipment UE, where the RRC message includes an RRC message carried by a signaling radio bearer SRB1 or an RRC message carried by an SRB2; and sending, by the first serving node, the RRC message to the first anchor node.

What is claimed is: 
     
         1 . A method for processing a radio resource control (RRC) message in a communication network, the method comprising:
 setting up a connection between a serving node and an anchor node and between the anchor node and an apparatus of core network;   sending, by the serving node, an RRC message and first indication information to the anchor node over a signaling radio bearer (SRB) 0 or an SRB 1 or an SRB 2 that identifies the RRC message sent by the serving node; and   sending, by the anchor node, an RRC message and second indication information to the serving node over the SRB 0 or the SRB 1 or the SRB 2 that identifies the RRC message sent by the anchor node.   
     
     
         2 . The method according to  claim 1 , wherein the method further comprising:
 processing, by a Packet Data Convergence Protocol (PDCP) layer entity of the anchor node, an RRC message over the SRB1 or the SRB 2; and   sending, by the anchor node, a processed message to an RRC layer entity of the anchor node.   
     
     
         3 . The method according to  claim 1 , wherein the method further comprising:
 processing, by a Radio Link Control (RLC) layer entity of the serving node, an RRC message over the SRB1 or the SRB2; and   sending, by the serving node, a processed message to a user equipment (UE).   
     
     
         4 . The method according to  claim 1 , wherein before sending, by the serving node, an RRC message and first indication information to the anchor node, the method further comprising:
 broadcasting, by the serving node, a system message to a user equipment (UE);   sending, by the UE, a random access message according to the system message to the serving node;   sending, by the serving node, a random access response message to the UE; and   sending, by the UE, an RRC connection request message over the SRB 0 to the serving node.   
     
     
         5 . The method according to  claim 3 , wherein the method further comprising:
 sending, by the serving node, the RRC message over the SRB1 or the SRB2 to the UE by using a Media Access Control (MAC) layer and a physical layer.   
     
     
         6 . The method according to  claim 3 , wherein the method further comprising:
 sending, by the serving node, the RRC message over the SRB1 or the SRB2 to the UE by using a PDCP layer entity and an RRC layer entity of the UE.   
     
     
         7 . The method according to  claim 1 , wherein the method further comprising:
 broadcasting, by the serving node, a system message to a user equipment (UE);   sending, by the UE, a random access message according to the system message to the serving node;   sending, by the serving node, a random access response message to the UE; and   sending, by the UE, an RRC connection re-setup request message over the SRB 0 to the serving node.   
     
     
         8 . A system for processing a radio resource control (RRC) message in a communication network, the system comprising:
 a serving node;   an anchor node; and   an apparatus of core network;   wherein a connection is set up between the serving node and the anchor node and between the anchor node and the apparatus;   the serving node is configured to: send an RRC message and first indication information to the anchor node over a signaling radio bearer (SRB) 0 or an SRB 1 or an SRB 2 that identifies the RRC message sent by the serving node; and   the anchor node is configured to: send an RRC message and second indication information to the serving node over the SRB 0 or the SRB 1 or the SRB 2 that identifies the RRC message sent by the anchor node.   
     
     
         9 . The system according to  claim 8 , wherein the anchor node is further configured to:
 process, by a Packet Data Convergence Protocol (PDCP) layer entity of the anchor node, an RRC message over the SRB1 or the SRB 2; and   send a processed message to an RRC layer entity of the anchor node.   
     
     
         10 . The system according to  claim 8 , wherein the serving node is further configured to:
 process, by a Radio Link Control (RLC) layer entity of the serving node, an RRC message over the SRB1 or the SRB2; and   send a processed message to a user equipment (UE).   
     
     
         11 . The system according to  claim 8 , wherein the serving node is further configured to:
 broadcast a system message to a user equipment (UE);   receive a random access message sent by the UE according to the system message;   send a random access response message to the UE; and   receive an RRC connection request message sent by the UE over the SRB 0.   
     
     
         12 . The system according to  claim 10 , wherein the serving node is further configured to:
 send the RRC message over the SRB1 or the SRB2 to the UE by using a Media Access Control (MAC) layer and a physical layer.   
     
     
         13 . The system according to  claim 10 , wherein the serving node is further configured to:
 send the RRC message over the SRB1 or the SRB2 to the UE by using a PDCP layer entity and an RRC layer entity of the UE.   
     
     
         14 . The system according to  claim 8 , wherein the serving node is further configured to:
 broadcast a system message to a user equipment (UE);   receive a random access message sent by the UE according to the system message;   send a random access response message to the UE; and   receive an RRC connection re-setup request message sent by the UE over the SRB 0.