The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Nov. 17, 2020

Filed:

Feb. 19, 2018
Applicant:

Telefonaktiebolaget Lm Ericsson (Publ), Stockholm, SE;

Inventors:

Erik Eriksson, Linköping, SE;

Mattias Frenne, Uppsala, SE;

David Hammarwall, Vallentuna, SE;

George Jöngren, Sundbyberg, SE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 72/04 (2009.01); H04L 5/00 (2006.01);
U.S. Cl.
CPC ...
H04W 72/042 (2013.01); H04L 5/0048 (2013.01); H04L 5/0053 (2013.01); H04L 5/0094 (2013.01); H04L 5/001 (2013.01);
Abstract

A network node in a wireless communication network communicates an enhanced Physical Downlink Control Channel (ePDCCH) to a user equipment (UE). This begins with the transmission, to the UE, of a configuration message that indicates the mappings of ePDCCH onto resource elements for both a first ePDCCH set and a second ePDCCH set. The mapping for the first ePDCCH set avoids the use of resource elements already in use by a first type of signal (e.g., a Cell-Specific Reference Signal or CRS), whereas the mapping for the second ePDCCH set avoids the use of resource elements in use by a second type of signal. The choice of an ePDCCH set for transmitting data to a UE may then be dynamically made in order to avoid interference caused by the first or second types of signal.


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