Method, product and apparatus for treating master cell group, MCG, failure and radio link failure, RLF, reporting
A method ( 400 ) for reporting radio link failure, RLF, information. The method includes a user equipment, UE, detecting (s 402 ) an RLF with respect to a master cell group, MCG. The method also includes, in response to detecting the RLF with respect to the MCG, the UE storing (s 404 ) RLF information. The method also includes the UE sending (s 406 ) a first message comprising MCG failure information, e.g., the RLF information, and activating a timer. The method also includes the UE receiving (s 408 ) a second message after sending the first message and activating the timer. The method also includes the UE, in response to receiving the second message, determining (s 410 ) that a condition is satisfied, wherein determining that the condition is satisfied comprises at least determining that the timer is still running. The method also includes, as a result of determining that the condition is satisfied, the UE deleting (s 412 ) the RLF information.
1. A method for reporting radio link failure (RLF) information, the method comprising:
a user equipment (UE) detecting an RLF with respect to a master cell group (MCG);
in response to detecting the RLF with respect to the MCG, the UE storing RLF information;
the UE sending a first message comprising MCG failure information and starting a timer;
after sending the first message and starting the timer, the UE receiving a second message;
the UE, in response to receiving the second message, determining that the timer is still running; and
as a result of determining that the that the timer is still running, the UE deleting the RLF information, wherein
the second message is one of:
an RRC message containing a reconfiguration with synchronization indicator;
a MobilityFromEUTRA message;
a MobilityFromNR message; or
an RRCConnectionReconfigurationMessage with mobilityControlInfo.
2. The method of claim 1 , further comprising the UE stopping the timer in response to receiving the second message.
3. The method of claim 1 , wherein the second message is an RRCReconfiguration message containing a Reconfiguration WithSync information element.
4. The method of claim 1 , wherein deleting the RLF information comprises deleting the RLF information in a UE internal memory.
5. The method of claim 1 , wherein
the RLF information is captured in a UE variable referred to as VarRLF-Report according to 3GPP, and
deleting the RLF information comprises deleting the RLF information included in the Var-RLF-Report.
6. The method of claim 1 , wherein the MCG failure information comprises the RLF information.
7. A non-transitory computer readable storage medium storing a computer program comprising instructions which when executed by processing circuitry of a user equipment (UE) causes the UE to perform a method comprising:
detecting a radio link failure (RLF) with respect to a master cell group (MCG;
in response to detecting the RLF with respect to the MCG, storing RLF information;
sending a first message comprising MCG failure information and starting a timer;
after sending the first message and starting the timer, receiving a second message;
in response to receiving the second message, determining that the timer is still running; and
as a result of determining that the that the timer is still running, the UE deleting the RLF information, wherein
the second message is one of:
an RRC message containing a reconfiguration with synchronization indicator;
a MobilityFromEUTRA message;
a MobilityFromNR message; or
an RRCConnectionReconfigurationMessage with mobilityControlInfo.
8. A user equipment (UE), the UE comprising:
processing circuitry; and
a memory, said memory containing instructions executable by said processing circuitry, wherein the UE is configured to perform a method comprising:
detecting a radio link failure (RLF) with respect to a master cell group (MCG;
in response to detecting the RLF with respect to the MCG, storing RLF information;
sending a first message comprising MCG failure information and starting a timer;
after sending the first message and starting the timer, receiving a second message;
in response to receiving the second message, determining that the timer is still running; and
as a result of determining that the that the timer is still running, the UE deleting the RLF information, wherein
the second message is one of:
an RRC message containing a reconfiguration with synchronization indicator;
a MobilityFromEUTRA message;
a MobilityFromNR message; or
an RRCConnectionReconfigurationMessage with mobilityControlInfo.
9. The UE of claim 8 , wherein the UE is configured to stop the timer in response to receiving the second message.
10. The UE of claim 8 , wherein the second message is an RRCReconfiguration message containing a ReconfigurationWithSync information element.
11. The UE of claim 8 , wherein deleting the RLF information comprises deleting the RLF information in a UE internal memory.
12. The UE of claim 8 , wherein
the UE is configured to capture the RLF information in a UE variable referred to as VarRLF-Report according to 3GPP, and
deleting the RLF information comprises deleting the RLF information included in the Var-RLF-Report.
13. The UE of claim 8 , wherein the MCG failure information comprises the RLF information.