Transmission of information in a wireless communication system
View Patent ↗Methods, devices, and systems for the transmission of information in a wireless communication system are disclosed. In one embodiment, a method of transmission in a wireless communication system comprises determining by a wireless device ( 201 ) a configuration of a plurality of power amplifiers ( 207 ) to achieve a single antenna transmission mode; amplifying a signal by said wireless device ( 201 ) using the configuration of the plurality of power amplifiers ( 207 ) to form a plurality of amplified signals; simultaneously transmitting at or about the same time by the wireless device ( 201 ) to a base station ( 202 ) the plurality of amplified signals from a plurality of physical antennas ( 212 ), wherein the plurality of physical antennas ( 212 ) are coupled to the configuration of the plurality of power amplifiers ( 207 ); and wherein the measured transmit power from the totality of the plurality of physical antennas ( 212 ) is about the same as the required transmit power using the single antenna transmission mode.
1. A method for operating a wireless communication device comprising a plurality of physical antennas, the method comprising:
receiving, by the wireless device, information on a first sounding reference signal port to support the transmission of an uplink sounding reference signal using a single antenna port mode, wherein the single antenna port mode uses antenna virtualization to realize a single antenna port by transmitting from at least two of the plurality of physical antennas;
receiving, by the wireless device, information on a set of second sounding reference signal ports, each one of the second sounding reference signal ports supporting the transmission of said uplink sounding reference signal using a respective one of the plurality of physical antennas;
selecting, by the wireless device, a sounding reference signal port from said first sounding reference signal port and said second sounding reference signal ports; and
transmitting by the wireless device to a base station, said uplink sounding reference signal using said selected sounding reference signal port.
2. The method of claim 1 , further comprising:
defining by said wireless device another set of sounding reference signal ports to support the transmission of said uplink sounding reference signal using a portion of said plurality of physical antennas.
3. The method of claim 1 , wherein said first sounding reference signal port and said second sounding reference signal ports are defined separately for an aperiodic sounding reference signal and a periodic sounding reference signal.
4. The method of claim 1 , wherein a periodic sounding reference signal port, an aperiodic sounding reference signal port, or both is specified to transmit said uplink sounding reference signal using said single antenna port mode; and
a plurality of aperiodic sounding reference signal ports, a plurality of periodic sounding reference signal ports, or both are specified to transmit said uplink sounding reference signals for said plurality of physical antennas.
5. The method of claim 1 , wherein one or more of said sounding reference signal ports is re-used for other physical antenna configurations.
6. The method of claim 1 , further comprising:
sending from said wireless device to said base station an indication of said selection of said sounding reference signal port.
7. The method of claim 1 , further comprising:
receiving by said wireless device from said base station said selection of said sounding reference signal port.
8. A method for operating a base station in a wireless communication network, the method comprising:
transmitting, by the base station to a wireless communication device comprising a plurality of physical antennas, information on a first sounding reference signal port to support the transmission of an uplink sounding reference signal using a single antenna port mode, wherein the single antenna port mode uses antenna virtualization to realize a single antenna port by transmitting from at least two of the plurality of physical antennas;
transmitting, by the base station to the wireless communication device, information on a set of second sounding reference signal ports, each one of the second sounding reference signal ports supporting the transmission of said uplink sounding reference signal using a respective one of the plurality of physical antennas; and
receiving by the base station, an uplink sounding reference signal, using a selected sounding reference signal port from the first sounding reference signal port and said second sounding reference signal ports.
9. A wireless device comprising:
a plurality of physical antennas;
one or more processors configured to:
receive information on a first sounding reference signal port to support the transmission of an uplink sounding reference signal using a single antenna port mode, wherein the single antenna port mode uses antenna virtualization to realize a single antenna port by transmitting from at least two of the plurality of physical antennas;
receive information on a set of second sounding reference signal ports, each one of the second sounding reference signal ports supporting the transmission of said uplink sounding reference signal using a respective one of the plurality of physical antennas;
select a sounding reference signal from said first sounding reference signal port and said second sounding reference signal ports; and
transmit, to a base station, said uplink sounding reference signal using said selected sounding reference signal port.
10. The wireless device of claim 9 , the one or more processor further configured to:
define another set of sounding reference signal ports to support the transmission of said uplink sounding reference signal using a portion of said plurality of physical antennas.
11. The wireless device of claim 9 , wherein said first sounding reference signal port and said second sounding reference signal ports are defined separately for an aperiodic sounding reference signal and a periodic sounding reference signal.
12. The wireless device of claim 9 , wherein a periodic sounding reference signal port, an aperiodic sounding reference signal port, or both is specified to transmit said uplink sounding reference signal using said single antenna port mode; and
a plurality of aperiodic sounding reference signal ports, a plurality of periodic sounding reference signal ports, or both are specified to transmit said uplink sounding reference signals for said plurality of physical antennas.
13. The wireless device of claim 9 , wherein one or more of said sounding reference signal ports is re-used for other physical antenna configurations.
14. The wireless device of claim 9 , the one or more processors further configured to:
send from said wireless device to said base station an indication of said selection of said sounding reference signal port.
15. The wireless device of claim 9 , the one or more processors further configured to:
receive by said wireless device from said base station said selection of said sounding reference signal port.
16. A base station comprising:
one or more processors configured to:
transmit, to a wireless communication device comprising a plurality of physical antennas, information on a first sounding reference signal port to support the transmission of an uplink sounding reference signal using a single antenna port mode, wherein the single antenna port mode uses antenna virtualization to realize a single antenna port by transmitting from at least two of the plurality of physical antennas;
transmit, to the wireless communication device, information on a set of second sounding reference signal ports, each one of the second sounding reference signal ports supporting the transmission of said uplink sounding reference signal using a respective one of the plurality of physical antennas; and
receive an uplink sounding reference signal, using a selected sounding reference signal port from the first sounding reference signal port and said second sounding reference signal ports.