US 12,284,547 B2
Methods for buffer status reporting in multiple connectivity and related apparatus
Mikael Wittberg, Uppsala (SE); Akram Bin Sediq, Kanata (CA); Gary Boudreau, Kanata (CA); and Martin Skarve, Enebyberg (SE)
Assigned to Telefonaktiebolaget LM Ericsson (Publ), Stockholm (SE)
Appl. No. 17/770,777
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
PCT Filed Oct. 23, 2019, PCT No. PCT/IB2019/059083
§ 371(c)(1), (2) Date Apr. 21, 2022,
PCT Pub. No. WO2021/079174, PCT Pub. Date Apr. 29, 2021.
Prior Publication US 2022/0417789 A1, Dec. 29, 2022
Int. Cl. H04W 28/02 (2009.01); H04W 28/086 (2023.01); H04W 72/21 (2023.01); H04W 76/15 (2018.01)
CPC H04W 28/0278 (2013.01) [H04W 28/0862 (2023.05); H04W 72/21 (2023.01); H04W 76/15 (2018.02)] 4 Claims
OG exemplary drawing
 
1. A method performed by a first network node connected to a user device having a multiple connectivity configuration with a plurality of radio links to a plurality of network nodes in a radio communication network, the method comprising:
receiving a buffer status report from the user device, the buffer status report comprising an uplink data amount available for transmission in the user device;
receiving uplink data from the user device on a first radio link of the plurality of radio links of the user device;
tracking the amount of uplink data received from the user device on the first radio link of the plurality of radio links of the user device;
exchanging information with each of the other of the plurality of network nodes of the amount of uplink data received by each of the other of the plurality of network nodes on each of the other plurality of radio links from the user device;
calculating a total remaining data amount in the user device based on the exchanged information; and
adapting an uplink resource grant based on the calculation.