US 11,057,837 B2
Downlink power adjustment in narrowband wireless communications
Seyed Ali Akbar Fakoorian, San Diego, CA (US); Alberto Rico Alvarino, San Diego, CA (US); Wanshi Chen, San Diego, CA (US); Peter Gaal, San Diego, CA (US); Hao Xu, San Diego, CA (US); Xiao Feng Wang, San Diego, CA (US); and Renqiu Wang, San Diego, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Mar. 2, 2017, as Appl. No. 15/447,914.
Claims priority of provisional application 62/308,581, filed on Mar. 15, 2016.
Prior Publication US 2017/0273026 A1, Sep. 21, 2017
Int. Cl. H04B 1/713 (2011.01); H04L 5/00 (2006.01); H04W 52/02 (2009.01); H04W 16/02 (2009.01); H04W 52/14 (2009.01); H04L 27/26 (2006.01); H04L 25/02 (2006.01); H04W 4/70 (2018.01); H04W 52/42 (2009.01); H04W 4/90 (2018.01); H04W 4/06 (2009.01)
CPC H04W 52/143 (2013.01) [H04L 5/0007 (2013.01); H04L 5/0048 (2013.01); H04L 5/0051 (2013.01); H04L 25/0228 (2013.01); H04L 27/2649 (2013.01); H04W 4/70 (2018.02); H04W 52/42 (2013.01); H04W 4/06 (2013.01); H04W 4/90 (2018.02)] 62 Claims
OG exemplary drawing
 
1. A method for wireless communication at a wireless device, comprising:
identifying, at the wireless device, a number of antenna ports used for a narrowband transmission over a narrowband downlink shared channel;
identifying, at the wireless device, a first ratio between an energy per resource element (EPRE) of downlink shared channel resources of the narrowband downlink shared channel and an EPRE of a narrowband reference signal (NB-RS) based at least in part on the number of antenna ports;
identifying that the narrowband downlink shared channel is configured according to an in-band deployment within a wideband downlink shared channel;
identifying, at the wireless device, a second ratio between the EPRE of the NB-RS and an EPRE of a cell specific reference signal (CRS) of the wideband downlink shared channel based at least in part on identifying that the narrowband downlink shared channel is configured according to the in-band deployment; and
demodulating, at the wireless device, the downlink shared channel resources based at least in part on the first ratio and the second ratio, wherein the narrowband downlink shared channel comprises the NB-RS and the CRS of the wideband downlink shared channel.