Back to results
US 11,115,806 B2Granted
Devices and methods for establishing multiple connections
AssigneeSharp Kabushiki Kaisha
InventorsShohei Yamada, Ahmad Khoshnevis, Zhanping Yin
Life of this patent
Estimating the term…
Abstract
A method by a User Equipment (UE) is described. The method includes receiving, from a radio access network, one or more radio resource control (RRC) messages. The one or more RRC messages are used to configure a dual connectivity in which the UE communicates with the radio access network using a first set of cell(s) and a second set of cell(s) and to configure a signaling radio bearer (SRB) for the second set of cell(s). The one or more RRC messages are sent via a signaling radio bearer of the first set of cell(s).
Claims6
A method by a User Equipment (UE), comprising:
- receiving a radio resource control (RRC) message, from a first base station, to configure a data radio bearer (DRB) to at least a second set of cell(s), wherein
- a signaling radio bearer (SRB) is provided by a first set of cell(s), which is represented by an identity of the first set of cell(s), among the first set of cell(s) and the second set of cell(s),
- the SRB is used for the RRC message,
- the first set of cell(s) corresponds to a first MAC entity,
- the second set of cell(s) corresponds to a second MAC entity,
- a Packet Data Convergence Protocol (PDCP) entity and one or more Radio Link Control (RLC) entities are established for the DRB, and
- the first set of cell(s) is constituted by a first serving cell and zero or more additional second serving cells and the second set of cell(s) is constituted by a third serving cell and zero or more additional second serving cells, wherein the first serving cell is configured as it cannot be deactivated, the third serving cell is configured as it cannot be deactivated, and a second serving cell is configured as it can be deactivated.
4 more elements
A method by a base station, comprising:
- transmitting a radio resource control (RRC) message, to a User Equipment (UE), to configure a data radio bearer (DRB) to at least a second set of cell(s), wherein
- a signaling radio bearer (SRB) is provided by a first set of cell(s), which is represented by an identity of the first set of cell(s), among the first set of cell(s) and the second set of cell(s),
- the SRB is used for the RRC message,
- the first set of cell(s) corresponds to a first MAC entity of the UE,
- the second set of cell(s) corresponds to a second MAC entity of the UE,
- a Packet Data Convergence Protocol (PDCP) entity and one or more Radio Link Control (RLC) entities are established for the DRB, and
- the first set of cell(s) is constituted by a first serving cell and zero or more additional second serving cells and the second set of cell(s) is constituted by a third serving cell and zero or more additional second serving cells, wherein the first serving cell is configured as it cannot be deactivated, the third serving cell is configured as it cannot be deactivated, and a second serving cell is configured as it can be deactivated.
4 more elements
A User Equipment (UE), comprising:
- receiving circuitry configured to receive a radio resource control (RRC) message, from a first base station, to configure a data radio bearer (DRB) to at least a second set of cell(s), wherein
- a signaling radio bearer (SRB) is provided by a first set of cell(s), which is represented by an identity of the first set of cell(s), among the first set of cell(s) and the second set of cell(s),
- the SRB is used for the RRC message,
- the first set of cell(s) corresponds to a first MAC entity,
- the second set of cell(s) corresponds to a second MAC entity,
- a Packet Data Convergence Protocol (PDCP) entity and one or more Radio Link Control (RLC) entities are established for the DRB, and
- the first set of cell(s) is constituted by a first serving cell and zero or more additional second serving cells and the second set of cell(s) is constituted by a third serving cell and zero or more additional second serving cells, wherein the first serving cell is configured as it cannot be deactivated, the third serving cell is configured as it cannot be deactivated, and a second serving cell is configured as it can be deactivated.
4 more elements
A base station, comprising:
- transmitting circuitry configured to transmit a radio resource control (RRC) message, to a User Equipment (UE), to configure a data radio bearer (DRB) to at least a second set of cell(s), wherein
- a signaling radio bearer (SRB) is provided by a first set of cell(s), which is represented by an identity of the first set of cell(s), among the first set of cell(s) and the second set of cell(s),
- the SRB is used for the RRC message,
- the first set of cells correspond(s) to a first MAC entity of the UE,
- the second set of cells correspond(s) to a second MAC entity of the UE,
- a Packet Data Convergence Protocol (PDCP) entity and one or more Radio Link Control (RLC) entities are established for the DRB, and
- the first set of cell(s) is constituted by a first serving cell and zero or more additional second serving cells and the second set of cell(s) is constituted by a third serving cell and zero or more additional second serving cells, wherein the first serving cell is configured as it cannot be deactivated, the third serving cell is configured as it cannot be deactivated, and a second serving cell is configured as it can be deactivated.
4 more elements
Dependencies are inferred from the claim text.