Title:
METHOD AND MTC DEVICE FOR TRANSMITTING DMRS FOR UPLINK DATA DEMODULATION
Document Type and Number:
WIPO Patent Application WO/2016/099057
Kind Code:
A1
Abstract:
The present specification discloses a method for transmitting a demodulation reference signal (DMRS) for uplink data demodulation by a machine type communication (MTC) device which is configured to operate in only a part of the system band of a cell. The method may comprise the steps of: mapping a DMRS sequence to 12 sub-carriers of a physical resource block (PRB); and dividing the PRB, to which the DMRS is mapped, into N sub-PRBs. Here, each of the sub-PRBs may comprise 12/N sub-carriers to which the DMRS is mapped. The method may further comprise a step for transmitting the N sub-PRBs to a base station in N sub-frames.
Inventors:
YOU HYANGSUN (KR)
YI YUNJUNG (KR)
YI YUNJUNG (KR)
Application Number:
PCT/KR2015/013166
Publication Date:
June 23, 2016
Filing Date:
December 03, 2015
Export Citation:
Assignee:
LG ELECTRONICS INC (KR)
International Classes:
H04L5/00; H04L27/26; H04W4/70
Domestic Patent References:
| WO2013020268A1 | 2013-02-14 |
Foreign References:
| US20140286255A1 | 2014-09-25 | |||
| US20120093120A1 | 2012-04-19 |
Other References:
NEC: "Uplink Reference Signal Enhancement for Low Cost MTC", R1-143935, 3GPP TSG RAN WG1 MEETING #78BIS, 27 September 2014 (2014-09-27), Ljubljana, Slovenia, XP050872813
ETRI: "Considerations on Uplink Reference Signal for MTC", R1-144916, 3GPP TSG RAN WG1 MEETING #79, 8 November 2014 (2014-11-08), San Francisco, USA, XP050885577
See also references of EP 3236609A4
ETRI: "Considerations on Uplink Reference Signal for MTC", R1-144916, 3GPP TSG RAN WG1 MEETING #79, 8 November 2014 (2014-11-08), San Francisco, USA, XP050885577
See also references of EP 3236609A4
Attorney, Agent or Firm:
S&IP PATENT & LAW FIRM (KR)
에스앤아이피 특허법인 (KR)
에스앤아이피 특허법인 (KR)
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