US 12,114,304 B2
Medium access control (MAC) control element signaling for multi-transmission point/multi panel physical downlink shared channel transmission
Siva Muruganathan, Stittsville (CA); Helka-Liina Määttanen, Helsinki (FI); Mattias Frenne, Uppsala (SE); and Shiwei Gao, Nepean (CA)
Assigned to TELEFONAKTIEBOLAGET LM ERICSSON (PUBL), Stockholm (SE)
Appl. No. 17/426,022
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
PCT Filed Jan. 30, 2020, PCT No. PCT/IB2020/050760
§ 371(c)(1), (2) Date Jul. 27, 2021,
PCT Pub. No. WO2020/157703, PCT Pub. Date Aug. 6, 2020.
Claims priority of provisional application 62/799,898, filed on Feb. 1, 2019.
Prior Publication US 2022/0191892 A1, Jun. 16, 2022
Int. Cl. H04W 72/12 (2023.01); H04L 5/00 (2006.01); H04W 72/1263 (2023.01); H04W 72/23 (2023.01); H04W 80/02 (2009.01)
CPC H04W 72/1263 (2013.01) [H04L 5/0051 (2013.01); H04L 5/0098 (2013.01); H04W 72/23 (2023.01); H04W 80/02 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method implemented in a network node, the method comprising:
transmitting within a medium access control (MAC) control element (CE) message, to a wireless device(WD) an indication of a plurality Kj of Transmission Configuration Indication(TCI) states that are mapped to a single codepoint, j, of a plurality of codepoints in a downlink control information(DCI) TCI field of a DCI, Kj and j being integers; and
transmitting within the MAC CE message, to the wireless device, the number Kj of TCI states being mapped to the single codepoint j, for each single codepoint j in the plurality of codepoints, the number Kj of TCI states has a value from a plurality of possible values, the DCI including an antenna ports field, the antenna ports field including an indication of at least one demodulation reference signal (DMRS) port usable by the WD to select a TCI state.