Method and apparatus for virtualizing antenna in wireless communication system

Patent metadata

Field	Value
Publication number	US-9374144-B2
Application number	US-201314424621-A
Country	US
Kind code	B2
Filing date	Sep 2, 2013
Priority date	Aug 31, 2012
Publication date	Jun 21, 2016
Grant date	Jun 21, 2016

Abstract

The present invention relates to a wireless communication system, and more specifically, disclosed are a method and an apparatus for virtualizing an antenna. A method for communicating using a virtual antenna of a terminal in the wireless communication system, according to one embodiment of the present invention, comprises the steps of: configuring one or more virtual antennas according to an antenna virtualization pattern that is determined based on information indicating a movement status of the terminal and/or information indicating a communication status of the terminal; and communicating with the base station by using the one or more virtual antennas, wherein one or more physical antennas that are mapped to the one or more virtual antennas can be determined base on the direction of movement of the terminal.

First claim

The invention claimed is:

1. A communication method using a virtual antenna of a terminal in a wireless communication system, comprising:
configuring one or more virtual antennas according to an antenna virtualization pattern determined on the basis of at least one of information indicating a movement state of the terminal and information indicating a communication state of the terminal; and
communicating with a base station using the one or more virtual antennas,
wherein one or more physical antennas mapped to one virtual antenna are determined on the basis of a direction of movement of the terminal.

2. The communication method according to claim 1 , wherein the width of a beam formed by the one or more physical antennas mapped to one virtual antenna is extended in the same direction as the direction of movement of the terminal.

3. The communication method according to claim 1 , wherein the one or more physical antennas mapped to one virtual antenna are one or more physical antennas arranged in the direction of movement of the terminal.

4. The communication method according to claim 1 , wherein the antenna virtualization pattern includes at least one of the number of one or more physical antennas mapped to one virtual antenna and information specifying the one or more physical antennas.

5. The communication method according to claim 4 , wherein the number of one or more physical antennas mapped to one virtual antenna is determined on the basis of a moving speed of the terminal.

6. The communication method according to claim 1 , wherein the information indicating the movement state includes at least one of information on whether the terminal is moving, information on the direction of movement of the terminal, information on the moving speed of the terminal and information about an acceleration state or a deceleration state.

7. The communication method according to claim 1 , wherein the information indicating the communication state includes at least one of information on a distance between the terminal and the base station, information on relative positions of the terminal and the base station and information on a channel state between the terminal and the base station.

8. The communication method according to claim 1 , wherein the antenna virtualization pattern is adaptively determined according to change of at least one of the information indicating the movement state of the terminal and the information indicating the communication state of the terminal.

9. The communication method according to claim 1 , wherein control information with respect to the antenna virtualization pattern is received from the base station.

10. The communication method according to claim 1 , wherein one or more of the information indicating the movement state of the terminal, position information of the terminal and channel state information is reported by the terminal to the base station.

11. The communication method according to claim 1 , wherein information indicating the antenna virtualization pattern preferred by the terminal is reported by the terminal to the base station.

12. The communication method according to claim 1 , wherein the configuring of one or more virtual antennas according to the antenna virtualization pattern is performed when the terminal does not perform data transmission and reception.

13. A method for supporting, by a base station, communication using a virtual antenna of a terminal in a wireless communication system, comprising:
transmitting, to the terminal, control information with respect to an antenna virtualization pattern of the terminal, determined on the basis of at least one of information indicating a movement state of the terminal and information indicating a communication state of the terminal; and
communicating with the terminal through one or more virtual antennas of the terminal, configured according to the control information with respect to the antenna virtualization pattern,
wherein one or more physical antennas mapped to one virtual antenna are determined on the basis of a direction of movement of the terminal.

14. A terminal performing communication using a virtual antenna in a wireless communication system, comprising:
a transmitter;
a receiver; and
a processor,
wherein the processor is configured: to configure one or more virtual antennas according to an antenna virtualization pattern determined on the basis of at least one of information indicating a movement state of the terminal and information indicating a communication state of the terminal; and to communicate with a base station using the one or more virtual antennas through one of the transmitter and the receiver,
wherein one or more physical antennas mapped to one virtual antenna are determined on the basis of a direction of movement of the terminal.

15. A base station supporting communication using a virtual antenna of a terminal in a wireless communication system, comprising:
a transmitter;
a receiver; and
a processor,
wherein the processor is configured: to transmit, to the terminal, control information with respect to an antenna virtualization pattern of the terminal, determined on the basis of at least one of information indicating a movement state of the terminal and information indicating a communication state of the terminal, through the transmitter; and to communicate with the terminal through one or more virtual antennas of the terminal, configured according to the control information with respect to the antenna virtualization pattern, through one of the transmitter and the receiver,
wherein one or more physical antennas mapped to one virtual antenna are determined on the basis of a direction of movement of the terminal.

Assignees

• Lg Electronics Inc

Inventors

• Kang Jiwon
• Kim Dongcheol
• Cho Hangyu
• Park Sungho
• Lim Dongguk

Classifications

• H04L5/0023

  Time-frequency-space · CPC title

• H04L5/0016

  Time-frequency-code · CPC title

• H04B7/0619

  using feedback from receiving side (feedback signaling for adaptive modulation/coding H04L1/0001) · CPC title

• H04B7/063

  Parameters other than those covered in groups H04B7/0623 - H04B7/0634, e.g. channel matrix rank or transmit mode selection · CPC title

• H04L5/0048

  Allocation of pilot signals, i.e. of signals known to the receiver (allocation of control signalling H04L5/0053; use of control signalling H04L5/0091) · CPC title