发明名称 |
METHOD AND APPARATUS FOR TRANSMITTING OR RECEIVING DOWNLINK SIGNAL |
摘要 |
Provided is a method for receiving a downlink signal by a user equipment (UE) in a wireless communication system supporting Coordinated Multi-point transmission and reception includes: receiving a list of candidate seeds for generating a sequence of a downlink demodulation reference signal (DM-RS) and downlink control information, and detecting the DCI; if a format of the detected DCI corresponds to a unique operation of a transmission mode configured to the UE, generating a sequence of the downlink DM-RS using one seed value selected from among the list of the candidate seeds on the basis of specific information included in the DCI; and if a format of the detected DCI corresponds to a fall-back operation of the transmission mode, generating a sequence of the downlink DM-RS using a specific seed value selected from among the list of the candidate seeds or an identifier (ID) of a serving cell. |
申请公布号 |
US2015063234(A1) |
申请公布日期 |
2015.03.05 |
申请号 |
US201314380344 |
申请日期 |
2013.03.05 |
申请人 |
LG ELECTRONICS INC. |
发明人 |
Park Hanjun;Kim Hakseong;Seo Hanbyul;Park Jonghyun;Kim Kijun;Yang Suckchel |
分类号 |
H04L5/00;H04W72/04 |
主分类号 |
H04L5/00 |
代理机构 |
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代理人 |
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主权项 |
1. A method for receiving a downlink signal by a user equipment (UE) in a wireless communication system supporting Coordinated Multi-point transmission and reception (CoMP), the method comprising:
receiving a list of candidate seeds for generating a sequence of a downlink demodulation reference signal (DM-RS) and downlink control information, and detecting the downlink control information; if a format of the detected downlink control information corresponds to a unique operation of a transmission mode configured to the UE, generating a sequence of the downlink DM-RS using one seed value selected from among the list of the candidate seeds on the basis of specific information included in the downlink control information; and if a format of the detected downlink control information corresponds to a fall-back operation of the transmission mode, generating a sequence of the downlink DM-RS using a specific seed value selected from among the list of the candidate seeds or an identifier (ID) of a serving cell. |
地址 |
Seoul KR |