US 10,892,815 B2
EVM requirements for wireless communication
Thomas Chapman, Solna (SE)
Assigned to Telefonaktiebolaget LM Ericsson (Publ), Stockholm (SE)
Appl. No. 16/323,715
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
PCT Filed Aug. 22, 2016, PCT No. PCT/EP2016/069818
§ 371(c)(1), (2) Date Feb. 6, 2019,
PCT Pub. No. WO2018/036608, PCT Pub. Date Mar. 1, 2018.
Prior Publication US 2019/0173560 A1, Jun. 6, 2019
Int. Cl. H04L 12/26 (2006.01); H04B 7/08 (2006.01); H04B 17/10 (2015.01); H04B 7/06 (2006.01); H04B 7/10 (2017.01); H04B 7/0413 (2017.01)
CPC H04B 7/086 (2013.01) [H04B 7/0617 (2013.01); H04B 7/10 (2013.01); H04B 17/10 (2015.01); H04B 17/104 (2015.01); H04B 7/0413 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A method for testing a radio node for compliance with transmitter disturbance quality requirements, the method comprising:
receiving a transmission from the radio node in a plurality of directions from the radio node, the plurality of directions including a predefined subset of directions; and
determining whether the received transmission complies with the transmitter disturbance quality requirements at least in each direction of the predefined subset of the plurality of directions, the transmitter disturbance quality requirements including at least error vector magnitude (EVM) performance requirements, EVM being at least a measure of wanted signal power and self-interference power of a transmitter of the radio node, the predefined subset of directions set being a set of directions in which the EVM requirement is expected to be fulfilled over the air (OTA).