Method of relay node using reference signal and relay node using the method
AssigneeLG Electronics Inc.
InventorsHan Byul Seo, Dae Won Lee, Byoung Hoon Kim, Hak Seong Kim, Yu Jin Noh
Life of this patent
Estimating the term…
Abstract
The present invention relates to a method of a Relay Node (RN) using a reference signal. The method includes receiving information about a Dedicated Reference Signal (DRS) which is used to demodulate a control channel via high-layer signaling from an evolved-NodeB (eNB), receiving control information through the control channel from the eNB, receiving data through a data channel from the eNB, and demodulating the control information and the data. The control information is demodulated using a DRS indicated by the information about the DRS, and the data are demodulated using a DRS indicated by the control information.
Claims10
A method of demodulating a signal, performed by a relay node, the method comprising:
- receiving, from an evolved NodeB (eNB), control information through a control channel and data corresponding to the control information through a data channel,
- wherein a number of layers used for transmission of the data is equal or more than 2;
- and
- demodulating, the control information and the data,
- wherein when the control information and the data are demodulated by using user-equipment (UE)-specific reference signals transmitted by the eNB, the control information is demodulated based on UE-specific reference signals transmitted on only one fixed antenna port n and the data is demodulated based on UE-specific reference signals transmitted on antenna ports n, . . . , (n+k−1), and the n is a natural number and the k is the number of layers used for transmission of the data.
A relay node comprising:
- a radio frequency (RF) unit configured to transmit and receive a radio signal;
- and
- a processor connected to the RF unit and configured to:
- receive, from an evolved-NodeB (eNB), control information through a control channel and data corresponding to the control information through a data channel,
- wherein a number of layers used for transmission of the data is equal or more than 2;
- and
- demodulate the control information and the data,
- wherein when the control information and the data are demodulated by using user-equipment (UE)-specific reference signals transmitted by the eNB, the control information is demodulated based on UE-specific reference signals transmitted on one fixed antenna port n and wherein the data is demodulated based on UE-specific reference signals transmitted by the eNB on antenna ports n, . . . , (n+k−1), and the n is a natural number and the k is the number of layers used for transmission of the data.
Dependencies are inferred from the claim text.