US 12,273,756 B2
Beam based criteria evaluation for adaptation of RRM measurements
Timo Koskela, Oulu (FI); Jorma Kaikkonen, Oulu (FI); and Jussi-Pekka Koskinen, Oulu (FI)
Assigned to Nokia Technologies, Espoo (FI)
Appl. No. 17/762,619
Filed by Nokia Technologies Oy, Espoo (FI)
PCT Filed Sep. 17, 2020, PCT No. PCT/EP2020/075977
§ 371(c)(1), (2) Date Mar. 22, 2022,
PCT Pub. No. WO2021/058369, PCT Pub. Date Apr. 1, 2021.
Claims priority of provisional application 62/907,306, filed on Sep. 27, 2019.
Prior Publication US 2022/0353722 A1, Nov. 3, 2022
Int. Cl. H04B 7/0408 (2017.01); H04B 7/06 (2006.01); H04W 24/10 (2009.01)
CPC H04W 24/10 (2013.01) [H04B 7/0408 (2013.01); H04B 7/0617 (2013.01); H04B 7/0693 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An apparatus comprising:
at least one processor; and
at least one memory including computer program code, the memory and the computer program code being configured to, with the at least one processor, cause the apparatus to at least:
determine at least one reference value configured to evaluate a beam change condition based on at least one measurement, wherein the determining comprises determining the at least one reference value based on measurements configured to derive at least one cell measurement quantity configured for cell quality derivation, at least one beam index determined to be used for cell quality derivation, a number of beams configured for cell quality derivation, and a measured quantity of the beams;
initiate at least one timer;
perform the at least one measurement before the at least one timer has expired;
compare the at least one measurement to the reference value;
based on the comparing, determine whether at least one beam has changed;
upon determining whether the at least one beam has changed, determine that the at least one timer is still running;
based on the at least one timer still running, perform the at least one measurement again to obtain an updated measurement;
comparing the updated measurement to the reference value;
based on the comparing, determine that the at least one beam has changed;
upon determining that the at least one timer has expired, determine that the at least one beam change condition has been fulfilled; and
upon determining that that the at least one beam change condition has been fulfilled:
determine that a user equipment is in a low mobility state; and
adapting an operation for the user equipment to perform radio resource measurement that the user equipment.