US 12,114,361 B2
Measured narrowbands for MSG3-based reporting
Luca Feltrin, Solna (SE); Dung Pham Van, Upplands Väsby (SE); Kazuyoshi Uesaka, Kawasaki (JP); Johan Bergman, Stockholm (SE); Ritesh Shreevastav, Upplands Väsby (SE); and Santhan Thangarasa, Vällingby (SE)
Assigned to Telefonaktiebolaget LM Ericsson (Publ), Stockholm (SE)
Appl. No. 17/426,485
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
PCT Filed Jan. 27, 2020, PCT No. PCT/SE2020/050061
§ 371(c)(1), (2) Date Jul. 28, 2021,
PCT Pub. No. WO2020/159420, PCT Pub. Date Aug. 6, 2020.
Claims priority of provisional application 62/797,602, filed on Jan. 28, 2019.
Prior Publication US 2022/0117000 A1, Apr. 14, 2022
Int. Cl. H04W 74/0833 (2024.01); H04W 24/10 (2009.01)
CPC H04W 74/0833 (2013.01) [H04W 24/10 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A method performed by a wireless device, the method comprising:
determining a set of narrowbands on which to perform measurements, the set of narrowbands on which to perform measurements being a subset of all narrowbands within a respective system bandwidth;
performing measurements on the set of narrowbands during one or more time periods associated with a random access procedure;
reporting the measurements or information derived from the measurements to a base station within a message sent from the wireless device to the base station during the random access procedure, reporting the measurements or the information derived from the measurements to the base station comprising reporting a combination of the measurements performed on different narrowbands within the set of narrowbands performed during different time intervals, the combination of the measurements being an average or weighted average of the measurements;
receiving information comprising one or more possible values for a Message 2, Msg2, Downlink Control Information, DCI, narrowband index; and
receiving bit vectors of different lengths, the different lengths corresponding to different values for a number of possible narrowbands in which Message 3 and 4, Msg3/4, DCI may be located;
determining the set of narrowbands on which to perform the measurements comprising:
selecting one of the bit vectors having a length that corresponds to a number of possible narrowbands in which the Msg3/4 DCI may be located for a particular configuration of the wireless device; and
determining the set of narrowbands on which to perform the measurements as a function of:
selected bit vector;
the one or more possible values for the Msg2 DCI narrowband index; and
a number of narrowbands within the respective system bandwidth.