Radio resource control connection establishment
A method for establishing a radio resource control connection between a first wireless device and a radio network node, comprises transmitting a request for a radio resource control connection towards the radio network node from the first wireless device to a second wireless device. Then, the second wireless device forwards the request for a radio resource control connection towards the radio network node to the radio network node. The forwarding by the second wireless device uses an already established radio resource control signaling connection between the second wireless device and the radio network node.
1. A method of operation of a first user equipment (UE), the method comprising:
obtaining a first relayed signaling radio bearer configuration;
sending a radio resource control connection request to a second UE, using the first relayed signaling radio bearer, for relaying to a radio access node;
obtaining a second relayed signaling radio bearer configuration;
configuring a second relayed signaling radio bearer for communication with the radio access node;
receiving a radio resource control setup message from the radio access node via the second UE using the first relayed signaling radio bearer; and
informing the radio access node that the radio resource control connection is complete, using the second relayed signaling radio bearer.
2. The method of claim 1 , comprising obtaining the first relayed signaling radio bearer configuration by receiving the configuration from the second UE.
3. The method of claim 1 , wherein the first UE is preconfigured with the first relayed signaling radio bearer configuration.
4. The method of claim 1 , wherein the radio resource control connection request contains an identifier for the first UE.
5. The method of claim 1 , comprising obtaining the second relayed signaling radio bearer configuration by receiving the second relayed signaling radio bearer configuration from the second UE.
6. The method of claim 1 , comprising obtaining the second relayed signaling radio bearer configuration by receiving some information from the second UE, wherein the first UE is preconfigured with other information for use in determining the second relayed signaling radio bearer configuration.
7. A user equipment, comprising a processor and a memory, the memory containing instructions executable by the processor, such that the user equipment is operable to:
obtain a first relayed signaling radio bearer configuration;
send a radio resource control connection request to a second UE, using the first relayed signaling radio bearer, for relaying to a radio access node;
obtain a second relayed signaling radio bearer configuration;
configure a second relayed signaling radio bearer for communication with the radio access node;
receive a radio resource control setup message from the radio access node via the second UE using the first relayed signaling radio bearer; and
inform the radio access node that the radio resource control connection is complete, using the second relayed signaling radio bearer.