METHOD FOR TRANSMITTING AND RECEIVING DOWNLINK REFERENCE SIGNALS IN A WIRELESS COMMUNICATION SYSTEM HAVING MULTIPLE ANTENNAS

Abstract

A method for transmitting and receiving downlink Reference Signals (RSs) in a wireless communication system using multiple antennas is disclosed. The downlink RS transmission method includes transmitting a first Orthogonal Frequency Division Multiplexing (OFDM) symbol in which RSs for a plurality of antenna port of first group are allocated in a predetermined order along a frequency axis RSs for a plurality of antenna port of second group are allocated in a predetermined order along the frequency axis and the RSs for the plurality of antenna port of first group are multiplexed in Code Division Multiplexing (CDM) with the RSs for the plurality of antenna port of second group by pairing each of the plurality of antenna port of first group with one of the plurality of antenna port of second group and transmitting a second OFDM symbol in which the RSs for the plurality of antenna port of first group and the RSs for the plurality of antenna port of second group are positioned in an RS pattern being a frequency-domain shift of an RS pattern of the first OFDM symbol.

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4G	03/03/2017	ISLD-201702-011	LG	S1 TS Number: TS 136 211 Version No: ---- Illustrative part: ---- Release: ---- S2 TS Number: TS 136 212 Version No: ---- Illustrative part: ---- Release: ---- S3 TS Number: TS 136 213 Version No: ---- Illustrative part: ---- Release: ---- S4 TS Number: TS 136 300 Version No: ---- Illustrative part: ---- Release: ---- S5 TS Number: TS 136 321 Version No: ---- Illustrative part: ---- Release: ---- S6 TS Number: TS 136 331 Version No: ---- Illustrative part: ---- Release: ---- +5 -5	Yes	Basis Patent
4G	13/12/2016	ISLD-201703-001	MEDIATEK INC	S1 TS Number: TS 136 101 Version No: ---- Illustrative part: ---- Release: ---- S2 TS Number: TS 136 211 Version No: ---- Illustrative part: ---- Release: ---- S3 TS Number: TS 136 213 Version No: ---- Illustrative part: ---- Release: ---- S4 TS Number: TS 136 300 Version No: ---- Illustrative part: ---- Release: ---- S5 TS Number: TS 136 321 Version No: ---- Illustrative part: ---- Release: ---- S6 TS Number: TS 136 331 Version No: ---- Illustrative part: ---- Release: ---- +5 -5	Yes	Basis Patent

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US2011235730A1	4G	03/03/2017	ISLD-201702-011	LG	S1 TS Number: TS 136 211 Version No: -- Section No: -- Release : -- S2 TS Number: TS 136 212 Version No: -- Section No: -- Release : -- S3 TS Number: TS 136 213 Version No: -- Section No: -- Release : -- S4 TS Number: TS 136 300 Version No: -- Section No: -- Release : -- S5 TS Number: TS 136 321 Version No: -- Section No: -- Release : -- S6 TS Number: TS 136 331 Version No: -- Section No: -- Release : -- +5 -5	Yes	Basis Patent
US2011235730A1	4G	13/12/2016	ISLD-201703-001	MEDIATEK INC	S1 TS Number: TS 136 101 Version No: -- Section No: -- Release : -- S2 TS Number: TS 136 211 Version No: -- Section No: -- Release : -- S3 TS Number: TS 136 213 Version No: -- Section No: -- Release : -- S4 TS Number: TS 136 300 Version No: -- Section No: -- Release : -- S5 TS Number: TS 136 321 Version No: -- Section No: -- Release : -- S6 TS Number: TS 136 331 Version No: -- Section No: -- Release : -- +5 -5	Yes	Basis Patent
KR101481591B1	4G	03/03/2017	ISLD-201702-011	LG	S1 TS Number: TS 136 211 Version No: -- Section No: -- Release : -- S2 TS Number: TS 136 212 Version No: -- Section No: -- Release : -- S3 TS Number: TS 136 213 Version No: -- Section No: -- Release : -- S4 TS Number: TS 136 300 Version No: -- Section No: -- Release : -- S5 TS Number: TS 136 321 Version No: -- Section No: -- Release : -- S6 TS Number: TS 136 331 Version No: -- Section No: -- Release : -- +5 -5	Yes	Family Member
KR20100063625A	4G	03/03/2017	ISLD-201702-011	LG	S1 TS Number: TS 136 211 Version No: -- Section No: -- Release : -- S2 TS Number: TS 136 212 Version No: -- Section No: -- Release : -- S3 TS Number: TS 136 213 Version No: -- Section No: -- Release : -- S4 TS Number: TS 136 300 Version No: -- Section No: -- Release : -- S5 TS Number: TS 136 321 Version No: -- Section No: -- Release : -- S6 TS Number: TS 136 331 Version No: -- Section No: -- Release : -- +5 -5	Yes	Family Member
WO2010064854A2	4G	03/03/2017	ISLD-201702-011	LG	S1 TS Number: TS 136 211 Version No: -- Section No: -- Release : -- S2 TS Number: TS 136 212 Version No: -- Section No: -- Release : -- S3 TS Number: TS 136 213 Version No: -- Section No: -- Release : -- S4 TS Number: TS 136 300 Version No: -- Section No: -- Release : -- S5 TS Number: TS 136 321 Version No: -- Section No: -- Release : -- S6 TS Number: TS 136 331 Version No: -- Section No: -- Release : -- +5 -5	Yes	Family Member
WO2010064854A3	4G	03/03/2017	ISLD-201702-011	LG	S1 TS Number: TS 136 211 Version No: -- Section No: -- Release : -- S2 TS Number: TS 136 212 Version No: -- Section No: -- Release : -- S3 TS Number: TS 136 213 Version No: -- Section No: -- Release : -- S4 TS Number: TS 136 300 Version No: -- Section No: -- Release : -- S5 TS Number: TS 136 321 Version No: -- Section No: -- Release : -- S6 TS Number: TS 136 331 Version No: -- Section No: -- Release : -- +5 -5	Yes	Family Member

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METHOD FOR TRANSMITTING AND RECEIVING DOWNLINK REFERENCE SIGNALS IN A WIRELESS COMMUNICATION SYSTEM HAVING MULTIPLE ANTENNAS

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