US 12,081,382 B2
Systems and methods regarding frequency- selective SRS transmission and PUSCH precoding
Sebastian Faxér, Järfälla (SE); Andreas Nilsson, Gothenburg (SE); and Robert Mark Harrison, Grapevine, TX (US)
Assigned to Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
Appl. No. 16/760,346
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
PCT Filed Nov. 16, 2018, PCT No. PCT/SE2018/051188
§ 371(c)(1), (2) Date Apr. 29, 2020,
PCT Pub. No. WO2019/098935, PCT Pub. Date May 23, 2019.
Claims priority of provisional application 62/587,520, filed on Nov. 17, 2017.
Prior Publication US 2023/0217429 A1, Jul. 6, 2023
Int. Cl. H04W 72/1268 (2023.01); H04L 5/00 (2006.01); H04L 27/26 (2006.01)
CPC H04L 27/2613 (2013.01) [H04L 5/0048 (2013.01); H04L 5/0051 (2013.01); H04L 27/2634 (2013.01); H04W 72/1268 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A method of operation of a wireless communication device for transmitting a physical uplink channel in a wireless communication system, comprising:
transmitting a sounding reference signal on one or more sounding reference signal resources in a first set of frequency-domain resources, the sounding reference signal being frequency-selectively precoded such that a precoder used to precode the sounding reference signal in a first subset of the first set of frequency-domain resources is different than a precoder used to precode the sounding reference signal in a second subset of the first set of frequency-domain resources, wherein the first subset and the second subset are non-overlapping;
receiving an uplink scheduling assignment for an uplink physical channel, the uplink scheduling assignment comprising a resource allocation of a second set of frequency-domain resources, wherein the second set of frequency-domain resources comprises: (a) one or more frequency-domain resources that are also included in the first set of frequency-domain resources and (b) one or more frequency-domain resources that are not included in the first set of frequency-domain resources;
in order to form a precoded uplink channel:
for each frequency-domain resource of one or more frequency-domain resources comprised in both the first set of frequency-domain resources and the second set of frequency-domain resources, applying a same precoding to the uplink physical channel on the frequency-domain resource as applied to the sounding reference signal on the frequency-domain resource; and
for each frequency-domain resource of the one or more frequency-domain resources comprised in the second set of frequency-domain resources but not included in the first set of frequency-domain resources, applying a same precoding to the uplink physical channel on the frequency-domain resource as applied to the sounding reference signal on a different frequency-domain resource; and
transmitting the precoded uplink channel.