Devices for establishing multiple connections
A method by a User Equipment (UE) is described. The method includes a receiving radio resource control (RRC) message to map a data radio bearer (DRB) to at least one of a first set of cell(s) and a second set of cell(s). A first DRB set is mapped to the first set of cell(s) and a second DRB set is mapped to the second set of cell(s). For each set of cell(s), DRBs correspond to a MAC entity.
1. A method by a User Equipment (UE), comprising:
receiving a radio resource control (RRC) message, from a first evolved Node B (eNB), to configure dual connectivity and to map a data radio bearer (DRB) to at least a second set of cell(s), wherein a signaling radio bearer (SRB) is mapped to a first set of cell(s), a Packet Data Convergence Protocol (PDCP) entity, one or more Radio Link Control (RLC) entities and a Dedicated Traffic Channel (DTCH) logical channel are established for the DRB and a DRB for each set of cell(s) corresponds to a MAC entity for each set of cell(s).
2. The method of claim 1 , wherein one or more RRC messages sent or received by the UE terminate at a first point providing the first set of cell(s) on an Evolved Universal Terrestrial Radio Access Network (E-UTRAN).
3. The method of claim 1 , wherein at least one message sent or received by the UE terminates at a first point providing the first set of cell(s) on an Evolved Universal Terrestrial Radio Access Network (E-UTRAN) and at least one RRC message terminates at a second point providing the second set of cell(s) on the E-UTRAN.
4. The method of claim 1 , wherein a first point providing the first set of cell(s) on an Evolved Universal Terrestrial Radio Access Network (E-UTRAN) is connected to a mobility management entity (MME) and a second point providing the second set of cell(s) on the E-UTRAN is connected to a serving gateway (S-GW), wherein the first point comprises a termination for a user plane protocol and the second point comprises a termination for a control plane protocol.
5. The method of claim 1 , wherein a first point providing the first set of cell(s) on an Evolved Universal Terrestrial Radio Access Network (E-UTRAN) is connected to a mobility management entity (MME) and to a serving gateway (S-GW), wherein the first point comprises a termination for a user plane protocol and a termination for a control plane protocol.
6. A method by a first evolved Node B (eNB), comprising:
sending a radio resource control (RRC) message, to a User Equipment (UE), to configure dual connectivity and to map a data radio bearer (DRB) to at least a second set of cell(s), wherein a signaling radio bearer (SRB) is mapped to a first set of cell(s), a Packet Data Convergence Protocol (PDCP) entity, one or more Radio Link Control (RLC) entities and a Dedicated Traffic Channel (DTCH) logical channel are established for the DRB and a DRB for each set of cell(s) corresponds to a MAC entity for each set of cell(s).
7. The method of claim 6 , wherein one or more messages sent or received by the UE terminate at the first eNB providing the first set of cell(s).
8. The method of claim 6 , wherein at least one message sent or received by the UE terminates at the first eNB and at least one RRC message terminates at a second eNB.
9. The method of claim 6 , wherein the first eNB is connected to a mobility management entity (MME) and a second eNB is connected to a serving gateway (S-GW), wherein the first eNB comprises a termination for a user plane protocol and the second eNB comprises a termination for a control plane protocol.
10. The method of claim 6 , wherein the first eNB is connected to a mobility management entity (MME) and to a serving gateway (S-GW), wherein the first eNB comprises a termination for a user plane protocol and a termination for a control plane protocol.
11. A user equipment (UE), comprising:
a processor;
memory in electronic communication with the processor, wherein instructions stored in the memory are executable to:
receive radio resource control (RRC) message, from a first evolved Node B (eNB), to configure dual connectivity and to map a data radio bearer (DRB) to at least a second set of cell(s), wherein a signaling radio bearer (SRB) is mapped to a first set of cell(s), a Packet Data Convergence Protocol (PDCP) entity, one or more Radio Link Control (RLC) entities and a Dedicated Traffic Channel (DTCH) logical channel are established for the DRB and a DRB for each set of cell(s) corresponds to a MAC entity for each set of cell(s).
12. The UE of claim 11 , wherein one or more messages sent or received by the UE terminate at a first point providing the first set of cell(s) on an Evolved Universal Terrestrial Radio Access Network (E-UTRAN).
13. The UE of claim 11 , wherein at least one message sent or received by the UE terminates at a first point providing the first set of cell(s) on an Evolved Universal Terrestrial Radio Access Network (E-UTRAN) and at least one RRC message terminates at a second point providing the second set of cell(s) on the E-UTRAN.
14. The UE of claim 11 , a first point providing the first set of cell(s) on an Evolved Universal Terrestrial Radio Access Network (E-UTRAN) is connected to a mobility management entity (MME) and a second point providing the second set of cell(s) on the E-UTRAN is connected to a serving gateway (S-GW), wherein the first point comprises a termination for a user plane protocol and the second point comprises a termination for a control plane protocol.
15. The UE of claim 11 , wherein a first point providing the first set of cell(s) on an Evolved Universal Terrestrial Radio Access Network (E-UTRAN) is connected to a mobility management entity (MME) and to a serving gateway (S-GW), wherein the first point comprises a termination for a user plane protocol and a termination for a control plane protocol.
16. A first evolved Node B (eNB), comprising:
a processor;
memory in electronic communication with the processor, wherein instructions stored in the memory are executable to:
send a radio resource control (RRC) message, to a User Equipment (UE), to configure dual connectivity and to map a data radio bearer (DRB) to at least a second set of cell(s), wherein a signaling radio bearer (SRB) is mapped to a first set of cell(s), a Packet Data Convergence Protocol (PDCP) entity, one or more Radio Link Control (RLC) entities and a Dedicated Traffic Channel (DTCH) logical channel are established for the DRB and a DRB for each set of cell(s) corresponds to a MAC entity for each set of cell(s).
17. The eNB of claim 16 , wherein one or more messages sent or received by the UE terminate at the first eNB providing the first set of cell(s).
18. The eNB of claim 16 , wherein at least one message sent or received by the UE terminates at the first eNB and at least one RRC message terminates at a second eNB.
19. The eNB of claim 16 , wherein the first eNB is connected to a mobility management entity (MME) and a second eNB is connected to a serving gateway (S-GW), wherein the first eNB comprises a termination for a user plane protocol and the second eNB comprises a termination for a control plane protocol.
20. The eNB of claim 16 , wherein the first eNB is connected to a mobility management entity (MME) and to a serving gateway (S-GW), wherein the first eNB comprises a termination for a user plane protocol and a termination for a control plane protocol.