Method and device for transmitting data unit, and method and device for receiving data unit
AssigneeLG Electronics Inc.
InventorsSeungjune YI, Sunyoung LEE
Life of this patent
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Abstract
A radio link control (RLC) entity can be used for multiple radio bearers (RBs). In other words, one RLC entity can be associated with multiple packet data convergence protocol (PDCP) entities, where the multiple PDCP entities are associated with the multiple RBs, respectively. An identifier of a PDCP or RB can be provided with a PDCP PDU in order to inform the RLC entity or a receiving device which RB or which PDCP entity the PDCP PDU is associated with. The RLC entity shared by more than one RB can be configured according to configuration information for RB(s).
Claims14
A method for transmitting, by a transmitting device, a data unit in a wireless communication system, the method comprising:
- receiving, at a shared radio link control (RLC) entity of the transmitting device, a first packet data convergence protocol (PDCP) protocol data unit (PDU) from a first PDCP entity configured for a first radio bearer (RB);
- and
- generating, at the shared RLC entity, a first RLC service data unit (SDU) from the first PDCP PDU;
- and
- submitting, at the shared RLC entity, a first RLC PDU containing the first RLC SDU to a medium access control (MAC) entity associated with the shared RLC entity,
- wherein the shared RLC entity is associated with multiple PDCP entities,
- wherein the first RLC PDU contains a first identifier associated with the first PDCP entity among the multiple PDCP entities, and
- wherein the first identifier is a PDCP identifier of the first PDCP entity or a RB identifier of the first RB.
A transmitting device for transmitting a data unit in a wireless communication system, the transmitting device comprising:
- a radio frequency (RF) unit, and
- a processor configured to control RF unit, the processor configured to:
- receive, at a shared radio link control (RLC) entity, a first packet data convergence protocol (PDCP) protocol data unit (PDU) from a first PDCP entity configured for a first radio bearer (RB);
- and
- generate, at the shared RLC entity, a first RLC service data unit (SDU) from the first PDCP PDU;
- and
- submit, at the shared RLC entity, a first RLC PDU containing the first RLC SDU to a medium access control (MAC) entity associated with the shared RLC entity,
- wherein the shared RLC entity is associated with multiple PDCP entities,
- wherein the first RLC PDU contains a first identifier associated with the first PDCP entity, and
- wherein the first identifier is a PDCP identifier of the first PDCP entity or a RB identifier of the first RB.
A method for receiving, by a receiving device, a data unit in a wireless communication system, the method comprising:
- receiving, at a shared radio link control (RLC) entity of the receiving device, a first RLC protocol data unit (PDU) containing a first RLC service data unit (SDU) from a medium access control (MAC) entity associated with the shared RLC entity;
- and
- delivering, at the shared RLC entity, the RLC SDU,
- wherein the shared RLC entity is associated with multiple packet data convergence protocol (PDCP) entities,
- wherein the first RLC PDU contains a first identifier identifying a PDCP entity, and
- wherein the first RLC SDU is delivered to the PDCP entity identified by the first identifier among the multiple PDCP entities, and
- wherein the first identifier is a PDCP identifier of the first PDCP entity or a RB identifier of the first RB.
A receiving device for receiving a data unit in a wireless communication system, the receiving device comprising:
- a radio frequency (RF) unit, and
- a processor configured to control RF unit, the processor configured to:
- receive, by a shared radio link control (RLC) entity, a first RLC protocol data unit (PDU) containing a first RLC service data unit (SDU) from a MAC entity associated with the shared RLC entity;
- and
- deliver, by the shared RLC entity, the RLC SDU,
- wherein the shared RLC entity is associated with multiple packet data convergence protocol (PDCP) entities,
- wherein the first RLC PDU contains a first identifier identifying a PDCP entity, and
- wherein the first RLC SDU is delivered to the PDCP entity identified by the first identifier among the multiple PDCP entities, and
- wherein the first identifier is a PDCP identifier of the first PDCP entity or a RB identifier of the first RB.
14-19. (canceled)
Dependencies are inferred from the claim text.