Transmission of information in a wireless communication system

Patent metadata

Field	Value
Publication number	US-9814003-B2
Application number	US-201013508462-A
Country	US
Kind code	B2
Filing date	Nov 8, 2010
Priority date	Nov 6, 2009
Publication date	Nov 7, 2017
Grant date	Nov 7, 2017

Abstract

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.

First claim

What is claimed is:

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.

Assignees

• Xu Hua
• Heo Youn
• Cai Zhijun
• Earnshaw Mark
• Fong Mo-Han
• Mcbeath Sean
• Harrison Robert Mark
• Blackberry Ltd

Inventors

• Xu Hua
• Heo Youn
• Cai Zhijun
• Earnshaw Mark
• Fong Mo-Han
• Mcbeath Sean
• Harrison Robert Mark

Classifications

• H04J13/102

  Combining codes · CPC title

• H04L5/0023

  Time-frequency-space · CPC title

• H04J13/0062

  Zadoff-Chu · CPC title

• H04W52/42 Primary

  in systems with time, space, frequency or polarisation diversity · CPC title

• H01Q1/00

  Details of, or arrangements associated with, antennas (arrangements for varying orientation of directional pattern H01Q3/00) · CPC title