US 11,917,695 B2
Early mobile-terminated data transmission
Dung Pham Van, Täby (SE); Magnus Stattin, Upplands Väsby (SE); Paul Schliwa-Bertling, Ljungsbro (SE); and Emre Yavuz, Stockholm (SE)
Assigned to Telefonaktiebolaget LM Ericsson (Publ), Stockholm (SE)
Appl. No. 17/276,227
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
PCT Filed Sep. 23, 2019, PCT No. PCT/SE2019/050903
§ 371(c)(1), (2) Date Mar. 15, 2021,
PCT Pub. No. WO2020/067970, PCT Pub. Date Apr. 2, 2020.
Claims priority of provisional application 62/735,626, filed on Sep. 24, 2018.
Prior Publication US 2022/0053572 A1, Feb. 17, 2022
Int. Cl. H04W 74/08 (2009.01); H04W 76/30 (2018.01); H04W 68/00 (2009.01)
CPC H04W 74/0841 (2013.01) [H04W 68/005 (2013.01); H04W 76/30 (2018.02)] 14 Claims
OG exemplary drawing
 
1. A method performed by a wireless device for mobile-terminated early data transmission, the method comprising:
receiving a paging message from a network node, the paging message comprising an indication that the network node will use early data transmission to transmit downlink data to the wireless device;
in response to receiving the paging message, selecting an early data transmission preamble;
transmitting a random access message 1 to the network node, the message 1 comprising the selected early data transmission preamble, the message 1 further comprising an indication that the wireless device is able to receive downlink user data in a random access message 4; and
receiving, in response to the transmitted message 1, a random access message 2 that includes an indication the network node will not use early data transmission to transmit downlink data to the wireless device.