Transmission of reference signals from a terminal device
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsSven PETERSSON, Fredrik ATHLEY, Andreas NILSSON, Roy TIMO, Xinlin ZHANG
Life of this patent
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Abstract
There is provided mechanisms for transmission of reference signals. A method is performed by a terminal device. The terminal device comprises at least two physical antenna ports. The method comprises creating a virtual antenna port for, and applied over, at least two of the physical antenna ports. The method comprises transmitting, in the virtual antenna port, as many uplink reference signals as there are physical antenna ports.
Claims20
A terminal device for transmission of N uplink reference signals, the terminal device comprising:
- at least N physical antenna ports;
- and
- processing circuitry, the processing circuitry being configured to cause the terminal device to:
- connect a virtual antenna port to at least two of the N physical antenna ports;
- and
- transmit the N uplink reference signals;
- in the virtual antenna port, wherein N is at least two.
A method for transmission of N uplink reference signals, the method being performed by a terminal device comprising at least N physical antenna ports, the method comprising:
- connecting a virtual antenna port to at least two of the N physical antenna ports;
- and
- transmitting the N uplink reference signals in the virtual antenna port, wherein N is at least two.
A computer program product comprising a computer program for transmission of reference signals and a non-transitory computer readable storage medium on which the computer program is stored, the computer program comprising computer code which, when run on processing circuitry of a terminal device for transmission of N uplink reference signals, the terminal device comprising at least N physical antenna ports, causes the terminal device to:
- connect a virtual antenna port to at least two of the N physical antenna ports;
- and
- transmit the N uplink reference signals in the virtual antenna port, wherein N is at least two.
A communication system comprising a terminal device for transmission of N uplink reference signals, the terminal device comprising at least N physical antenna ports and a radio access network node configured to provide network access over one or more radio propagation channels to the terminal device, wherein the communication system is configured to:
- connect a virtual antenna port to at least two of the N physical antenna ports;
- and
- transmit the N uplink reference signals in the virtual antenna port, wherein N is at least two.
Dependencies are inferred from the claim text.