METHOD AND USER EQUIPMENT FOR RECEIVING DOWNLINK SIGNALS, AND METHOD AND BASE STATION FOR TRANSMITTING DOWNLINK SIGNALS

Title:

METHOD AND USER EQUIPMENT FOR RECEIVING DOWNLINK SIGNALS, AND METHOD AND BASE STATION FOR TRANSMITTING DOWNLINK SIGNALS

Document Type and Number:

WIPO Patent Application WO/2017/069470

Kind Code:

A1

Abstract:

Provided are methods and devices for transmitting/receiving downlink signals in a wireless communication system. Carrier information is provided to user equipment, the carrier information including cell identifier information which indicates whether a first cell identifier related to a first carrier operating on one resource block (RB0) and a second cell identifier used for a cell-specific reference signal (CRS) on the first carrier are the same or different. If the second cell identifier is the same as the first cell identifier, the user equipment assumes that the number of antenna ports for the CRS on the first carrier is the same as the number of antenna ports for a reference signal defined for NB-IoT (reference signal for NB-IoT, NRS). If the second cell identifier is different from the first cell identifier, the carrier information further includes antenna port number information, and the user equipment assumes that the number of the antenna ports for the CRS is the same as the number of antenna ports based on the antenna port number information.

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Inventors:

KIM EUNSUN (KR)
YI YUNJUNG (KR)

Application Number:

PCT/KR2016/011607

Publication Date:

April 27, 2017

Filing Date:

October 17, 2016

Export Citation:

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Assignee:

LG ELECTRONICS INC (KR)

International Classes:

H04L5/00; H04L27/26

Foreign References:

US20130301524A1	2013-11-14
US20130182680A1	2013-07-18

Other References:

LG ELECTRONICS: "Overview on Design of Downlink for NB-IoT", R1-155799, 3GPP TSG RAN WG1 MEETING #82-BIS, 30 September 2015 (2015-09-30), Malmo, Sweden, XP051021902
QUALCOMM INCORPORATED: "In-band Design for NB-IOT", R1-155748, 3GPP TSG RAN WG1 #82BIS, 30 September 2015 (2015-09-30), Malmo, Sweden, XP051002573
SAMSUNG: "Narrowband IOT-Downlink Control/Data Channel Design", R1-155512, 3GPP TSG RAN WG1 MEETING #82BIS, 30 September 2015 (2015-09-30), Malmo, Sweden, XP051021889
See also references of EP 3367601A4

Attorney, Agent or Firm:

KIM, Yong In et al. (KR)

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