US 12,137,379 B2
Methods providing transmission of UL data to a source access node after establishing connection with a target access node and related wireless devices
Oscar Ohlsson, Bromma (SE); Pontus Wallentin, Linköping (SE); Johan Rune, Lidingö (SE); Julien Muller, Rennes (FR); and Alexander Vesely, Feldbach (AT)
Assigned to Telefonaktiebolaget LM Ericsson (Publ), Stockholm (SE)
Appl. No. 17/628,805
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
PCT Filed Aug. 13, 2020, PCT No. PCT/SE2020/050781
§ 371(c)(1), (2) Date Jan. 20, 2022,
PCT Pub. No. WO2021/029818, PCT Pub. Date Feb. 18, 2021.
Claims priority of provisional application 62/887,576, filed on Aug. 15, 2019.
Prior Publication US 2022/0361053 A1, Nov. 10, 2022
Int. Cl. H04W 36/00 (2009.01); H04W 36/02 (2009.01); H04W 36/18 (2009.01)
CPC H04W 36/0016 (2013.01) [H04W 36/023 (2013.01); H04W 36/18 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A method of operating a wireless device, the method comprising:
receiving a handover command from a source access node while providing a connection with the source access node, the connection with the source access node being provided using a source Radio Link Control (RLC) entity;
establishing a connection with a target access node responsive to receiving the handover command, the connection with the target access node being established using a target RLC entity; and
transmitting uplink data to the source access node after establishing the connection with the target access node, the uplink data including uplink data stored in a transmission buffer of the source RLC entity.