Communication of segmented radio resource control messages
A method, in a user device configured to communicate with a first base station via a radio link, for managing communication of a segmented radio resource control (RRC) message that includes N segments includes transmitting ( 212 ) a first M segments of the segmented RRC message to the first base station, M being an integer greater than zero and less than N, detecting ( 220 ), by processing hardware of the user device and before transmitting an (M+1)-th segment of the segmented RRC message, a failure of the radio link, and, after detecting the failure of the radio link, transmitting ( 264 ) at least a last N−M+1 segments of the segmented RRC message to either the first base station or a second base station.
1. A method, in a user device configured to communicate with a first base station via a radio link, for managing communication of a segmented radio resource control (RRC) message that includes N segments, wherein the segmented RRC message comprises an RRC message that has been divided by an RRC layer of the user device, the method comprising:
transmitting a first M segments of the segmented RRC message to the first base station, M being an integer greater than zero and less than N;
detecting, before transmitting an (M+1)-th segment of the segmented RRC message, a failure of the radio link; and
after detecting the failure of the radio link, transmitting the N segments of the segmented RRC message to either the first base station or a second base station.
2. The method of claim 1 , further comprising:
receiving an RRC message from the first base station via the radio link,
wherein transmitting the first M segments occurs in response to receiving the RRC message.
3. The method of claim 2 , wherein:
the RRC message is a message requesting user device capability information; and
the segmented RRC message is a message indicating capabilities of the user device.
4. The method of claim 2 , further comprising:
after detecting the failure of the radio link, receiving an additional RRC message from the first base station or the second base station,
wherein transmitting the N segments occurs in response to receiving the additional RRC message.
5. The method of claim 1 , further comprising:
in response to detecting the failure of the radio link, initiating, with either the first base station or the second base station, either an RRC connection reestablishment procedure or an RRC connection establishment procedure,
wherein transmitting the N segments occurs after the user device and either the first base station or the second base station establish or reestablish an RRC connection.
6. A user device comprising processing hardware and configured to:
divide a segmented radio resource control (RRC) message into N segments at an RRC layer of the user device;
transmit a first M segments of the segmented RRC message to a first base station via a radio link, M being an integer greater than zero and less than N;
before transmitting an (M+1)-th segment of the segmented RRC message, detect a failure of the radio link; and
after detecting the failure of the radio link, transmit the N segments of the segmented RRC message to either the first base station or a second base station.
7. The user device of claim 6 , wherein the user device is further configured to receive an RRC message from the first base station via the radio link, and wherein the user device transmits the first M segments in response to receiving the RRC message.
8. The user device of claim 7 , wherein:
the RRC message is a message requesting user device capability information; and
the segmented RRC message is a message indicating capabilities of the user device.
9. The user device of claim 7 , wherein the user device is further configured to, after detecting the failure of the radio link, receive an additional RRC message from the first base station or the second base station, and wherein the user device transmits the N segments in response to receiving the additional RRC message.
10. The user device of claim 6 , wherein the user device is further configured to, in response to detecting the failure of the radio link, initiate, with either the first base station or the second base station, either an RRC connection reestablishment procedure or an RRC connection establishment procedure, and wherein the user device transmits the N segments after the user device and either the first base station or the second base station establish or reestablish an RRC connection.