User equipment, base stations and methods
A multi-mode capable LTE-5G new radio (NR) user equipment (UE) for receiving LTE radio resource connection (RRC) messages is described. The UE receives an LTE RRC message from an evolved node B (eNB). The UE also determines which data radio bearer (DRB) to offload to a particular 5G NR system. The UE establishes an RRC with the 5G NR system. The UE steers a particular DRB or DRBs to the 5G NR system. The UE acknowledges receiving the LTE RRC message using LTE or NR connections. The UE updates an LTE system with a status of connections to the 5G NR system.
1. A user equipment (UE), comprising:
a processor; and
a memory in electronic communication with the processor, wherein instructions stored in the memory are executable to:
receive an RRCConnectionReconfiguration message from an E-UTRA evolved node B (eNB), wherein the RRCConnectionReconfiguration message is received over an LTE air interface, the RRCConnectionReconfiguration message comprises information elements (IEs) indicating a new radio (NR) configuration information, and the NR configuration information indicates an identity of an NR-Signaling Radio Bearer (SRB) for NR RRC message;
perform, according to the NR configuration information, addition of the NR-SRB for NR RRC message over an NR air interface which is different from the LTE air interface;
send information indicating a failure type as NR Radio Link failure.
2. The UE of claim 1 , wherein the information indicating the failure type is sent to the E-UTRA eNB.
3. A method performed by a user equipment (UE), comprising:
receiving an RRCConnectionReconfiguration message from an E-UTRA evolved node B (eNB), wherein the RRCConnectionReconfiguration message is received over an LTE air interface, the RRCConnectionReconfiguration message comprises information elements (IEs) indicating a new radio (NR) configuration information, and the NR configuration information indicates an identity of an NR-Signaling Radio Bearer (SRB) for NR RRC message;
performing, according to the NR configuration information, addition of the NR-SRB for NR RRC message over an NR air interface which is different from the LTE air interface; and
sending information indicating a failure type as NR Radio Link failure.
4. An E-UTRA evolved node B (eNB), comprising:
a processor; and
a memory in electronic communication with the processor, wherein instructions stored in the memory are executable to:
send an RRCConnectionReconfiguration message to a user equipment (UE), wherein the RRCConnectionReconfiguration message is received over an LTE air interface of the UE, and the RRCConnectionReconfiguration message comprises information elements (IEs) indicating a new radio (NR) configuration information which indicates an identity of an NR-Signaling Radio Bearer (SRB) for NR RRC message and which is used to cause the UE to perform addition of the NR-SRB for NR RRC message over an NR air interface of the UE which is different from the LTE air interface; and
receive, from the UE, information indicating a failure type as NR Radio Link failure.
5. A method performed by an E-UTRA evolved node B (eNB), comprising:
sending an RRCConnectionReconfiguration message to a user equipment (UE), wherein the RRCConnectionReconfiguration message is received over an LTE air interface of the UE, and the RRCConnectionReconfiguration message comprises information elements (IEs) indicating a new radio (NR) configuration information which indicates an identity of an NR-Signaling Radio Bearer (SRB) for NR RRC message and which is used to cause the UE to perform addition of the NR-SRB for NR RRC message over an NR air interface of the UE which is different from the LTE air interface; and
receiving, from the UE, information indicating a failure type as NR Radio Link failure.