US 11,902,194 B2
Channel state information reference signal resource mapping
Hong Ren, Kanata (CA); Jianguo Long, Kanata (CA); and Yongquan Qiang, Ottawa (CA)
Assigned to Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
Appl. No. 17/265,870
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
PCT Filed Sep. 17, 2018, PCT No. PCT/IB2018/057127
§ 371(c)(1), (2) Date Feb. 4, 2021,
PCT Pub. No. WO2020/058743, PCT Pub. Date Mar. 26, 2020.
Prior Publication US 2021/0203464 A1, Jul. 1, 2021
Int. Cl. H04L 5/00 (2006.01)
CPC H04L 5/0048 (2013.01) [H04L 5/001 (2013.01); H04L 5/0057 (2013.01)] 33 Claims
OG exemplary drawing
 
1. A network node for serving a cell in a wireless network with at least one neighboring cell, the network node comprising processing circuitry configured to cause the network node to:
allocate at least one resource for Channel State Information Interference Measurement, CSI-IM, within a predetermined IM region of a Resource Block, RB, of the cell, the predetermined IM region encompassing a plurality of resources of the RB of the cell, the allocated at least one resource being selected from among the plurality of resources of the IM region to reduce a likelihood that the allocated at least one resource overlaps with at least one resource allocated for CSI-IM in a neighboring cell as compared to allocating a common set of resources for CSI-IM in each neighboring cell, the predetermined IM region at least partially overlapping with a respective predetermined IM region of a RB of the neighboring cell, and the predetermined IM region of the cell not overlapping resources allocated for Non-Zero Power Channel State Information Reference Signal, NZP CSI-RS, of the neighboring cell.