Discarding a duplicate packet of an RLC entity in response to an acknowledgement
AssigneeSamsung Electronics Co., Ltd.
InventorsAlireza Babaei, Esmael Dinan
Life of this patent
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Abstract
A wireless device receives an indication for activation of packet data convergence protocol (PDCP) packet duplication of a radio bearer associated with a first radio link control (RLC) entity and a second RLC entity. A packet of the radio bearer is duplicated. The packet to the first RLC entity is provided. A duplicate packet to the second RLC is provided. The packet of the first RLC entity is transmitted. An acknowledgement of a successful delivery for the packet of the first RLC entity is received. In response to the acknowledgement, the duplicate packet of the second RLC entity is discarded.
Claims18
A method comprising:
- receiving, by a wireless device, an indication for activation of packet data convergence protocol (PDCP) packet duplication of a radio bearer associated with a first radio link control (RLC) entity and a second RLC entity;
- duplicating a packet of the radio bearer;
- providing the packet to the first RLC entity;
- providing a duplicate packet to the second RLC entity;
- receiving an uplink grant for the packet of the first RLC entity;
- transmitting the packet of the first RLC entity based on the uplink grant for the packet of the first RLC entity;
- receiving an acknowledgement of a successful delivery for the packet of the first RLC entity before receiving an uplink grant for the duplicate packet of the second RLC entity;
- and
- in response to the acknowledgement, discarding the duplicate packet of the second RLC entity.
A wireless device comprising:
- one or more processors;
- and
- memory storing instructions that, when executed by the one or more processors, cause the wireless device to:
- receive an indication for activation of packet data convergence protocol (PDCP) packet duplication of a radio bearer associated with a first radio link control (RLC) entity and a second RLC entity,
- duplicate a packet of the radio bearer,
- provide the packet to the first RLC entity,
- provide a duplicate packet to the second RLC entity,
- receive an uplink grant for the packet of the first RLC entity,
- transmit the packet of the first RLC entity based on the uplink grant for the packet of the first RLC entity,
- receive an acknowledgement of a successful delivery for the packet of the first RLC entity before receiving an uplink grant for the duplicate packet of the second RLC entity, and
- in response to the acknowledgement, discard the duplicate packet of the second RLC entity.
A system comprising:
- a base station comprising:
- one or more first processors;
- and
- first memory storing first instructions that, when executed by the one or more first processors, cause the base station to transmit an indication for activation of packet data convergence protocol (PDCP) packet duplication of a radio bearer associated with a first radio link control (RLC) entity and a second RLC entity;
- and
- a wireless device comprising:
- one or more second processors;
- and
- second memory storing second instructions that, when executed by the one or more second processors, cause the wireless device to:
- receive the indication,
- duplicate a packet of the radio bearer,
- provide the packet to the first RLC entity,
- provide a duplicate packet to the second RLC entity,
- receive an uplink grant for the packet of the first RLC entity,
- transmit the packet of the first RLC entity based on the uplink grant for the packet of the first RLC entity,
- receive an acknowledgement of a successful delivery for the packet of the first RLC entity before receiving an uplink grant for the duplicate packet of the second RLC entity, and
- in response to the acknowledgement, discard the duplicate packet of the second RLC entity.
Dependencies are inferred from the claim text.