METHOD OF TRANSMITTING REFERENCE SIGNALS IN A WIRELESS COMMUNICATION HAVING MULTIPLE ANTENNAS
First Claim
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1. A method of transmitting signals using orthogonal subcarriers by an apparatus in a wireless communication system, the method comprising:
- generating two or more demodulation reference signals (DMRSs) for two or more data layers; and
mapping the two or more DMRSs to resource elements (REs) on a subframe, wherein the subframe consists of two slots and each slot consists of six or seven symbols,wherein the two or more DMRSs are mapped to a same set of REs by code division multiplexing, the two or more DMRSs mapped on two symbols per slot,wherein the same set of REs includes REs separated by N subcarriers per slot, andwherein N is an integer equal to or greater than 2.
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Abstract
A method of transmitting signals by a transmitting end in a wireless communication system comprises sharing control information related to reference signal with a receiving end; generating one or more precoded reference signals considering a given rank; allocating the one or more precoded reference signals to have a specific pattern within a subframe, wherein the specific pattern is varied depending on the control information; and transmitting the subframe through multiple antennas to the receiving end.
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Citations
12 Claims
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1. A method of transmitting signals using orthogonal subcarriers by an apparatus in a wireless communication system, the method comprising:
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generating two or more demodulation reference signals (DMRSs) for two or more data layers; and mapping the two or more DMRSs to resource elements (REs) on a subframe, wherein the subframe consists of two slots and each slot consists of six or seven symbols, wherein the two or more DMRSs are mapped to a same set of REs by code division multiplexing, the two or more DMRSs mapped on two symbols per slot, wherein the same set of REs includes REs separated by N subcarriers per slot, and wherein N is an integer equal to or greater than 2. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An apparatus used for transmitting signals using orthogonal subcarriers in a wireless communication system, the apparatus comprising:
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a transmitting unit; and a processor, wherein the processor is adapted to generate two or more demodulation reference signals (DMRSs) for two or more data layers, and to map the two or more DMRSs to resource elements (REs) on a subframe, wherein the subframe consists of two slots and each slot consists of six or seven symbols, wherein the two or more DMRSs are mapped to a same set of REs by code division multiplexing, the two or more DMRSs mapped on two symbols per slot, wherein the same set of REs includes REs separated by N subcarriers per slot, and wherein N is an integer equal to or greater than 2. - View Dependent Claims (8, 9, 10, 11, 12)
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Specification