Structure of full duplex radio region applied in radio access system supporting full duplex radio scheme, and method and apparatus for allocating same

• US 9,954,606 B2
• Filed: 05/22/2014
• Issued: 04/24/2018
• Est. Priority Date: 05/22/2013
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Kim, Jinmin, Kim, Kitae, Chung, Jaehoon
• Primary Examiner(s): Park, Jung
• Application Number:
  US14/890,555
• Publication Number:
  US 20160087715A1
• Time in Patent Office: 1,433 Days
• CPC Class Codes: H04B 7/2615 using hybrid frequency-time division multiple access [FDMA-TDMA]
• CPC Class Codes: H04L 5/0091 Signaling for the administration of the divided path
• CPC Class Codes: H04L 5/14 Two-way operation using the same type of signal, i.e. duplex
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 72/51 based on terminal or device properties

Abstract

The present invention relates to a structure of a full duplex radio (FDR) region in an FDR system. Further, the present invention provides a method and apparatuses for transmitting allocation information on a configured FDR region. In an embodiment of the present invention, a method of allocating an FDR region by a base station in a radio access system supporting an FDR scheme comprises the steps of: transmitting a control signal including FDR region allocation information to a terminal and performing FDR-based communication with the terminal through an FDR region indicated by the FDR region allocation information. At this time, the FDR region allocation information may contain one or more of first number information indicating a number of subcarriers included in the FDR region, position information indicating an allocation position of the FDR region, and second number information indicating a number of subcarriers included in a guard region used for reducing interference.

Claims

1. A method for allocating a Full Duplex Radio (FDR) zone by a Base Station (BS) in a wireless access system supporting an FDR scheme, the method comprising:

transmitting a control signal including FDR zone allocation information to a User Equipment (UE); and

performing FDR based communication, based on the FDR zone allocation information, with the UE through an FDR zone indicated by the FDR zone allocation information,

wherein the FDR zone allocation information includes first information indicating a number of subcarriers constituting the FDR zone, location information indicating a start point of the FDR zone, and second information indicating a number of subcarriers constituting a guard zone located between the FDR zone and a Half Duplex Radio (HDR) zone.

2. The method according to claim 1,

wherein the control signal is a Physical Downlink Control Channel (PDCCH) signal transmitted through a control channel region or an Enhanced-Physical Downlink Control Channel (E-PDCCH) transmitted through a data channel region.

3. The method according to claim 1,

wherein the FDR zone allocation information is semi-statically configured during a predetermined number of Transmission Time Intervals (TTIs), and

the FDR zone allocation information is transmitted through a higher-layer signal.

4. The method according to claim 3,

wherein, if the FDR zone allocation information is differently defined according to each UE managed by the BS, the FDR zone allocation information is transmitted through UE-specific signaling.

5. The method according to claim 3,

wherein, if the FDR zone allocation information is defined according to each cell, the FDR zone allocation information is transmitted through cell-specific signaling.

6. A method for receiving Full Duplex Radio (FDR) zone allocation information in a wireless access system supporting an FDR scheme, the method comprising:

receiving a control signal including the FDR zone allocation information from a Base Station (BS); and

performing FDR based communication, based on the FDR zone allocation information, with the BS through an FDR zone indicated by the FDR zone allocation information,

wherein the FDR zone allocation information includes first information indicating a number of subcarriers constituting the FDR zone, location information indicating a start point of the FDR zone, and second information indicating a number of subcarriers constituting a guard zone located between the FDR zone and a Half Duplex Radio (HDR) zone.

7. The method according to claim 6,

wherein the control signal is a Physical Downlink Control Channel (PDCCH) signal transmitted through a control channel region or an Enhanced-Physical Downlink Control Channel (E-PDCCH) transmitted through a data channel region.

8. The method according to claim 6,

wherein the FDR zone allocation information is semi-statically configured during a predetermined number of Transmission Time Intervals (TTIs), and

the FDR zone allocation information is transmitted through a higher-layer signal.

9. The method according to claim 8,

wherein, if the FDR zone allocation information is differently defined according to each User Equipment (UE) managed by the BS, the FDR zone allocation information is transmitted through UE-specific signaling.

10. The method according to claim 8,

wherein, if the FDR zone allocation information is defined according to each cell, the FDR zone allocation information is transmitted through cell-specific signaling.

11. A User Equipment (UE) for receiving Full Duplex Radio (FDR) zone allocation information in a wireless access system supporting an FDR scheme, the UE comprising:

a receiver;

a transmitter; and

a processor configured to support the FDR scheme in association with the receiver and the transmitter,

wherein the processor is configured to;

control the receiver to receive a control signal including the FDR zone allocation information from a Base Station (BS); and

control the receiver and the transmitter to perform FDR based communication, based on the FDR zone allocation information, with the BS through an FDR zone indicated by the FDR zone allocation information,

wherein the FDR zone allocation information includes first information indicating a number of subcarriers constituting the FDR zone, location information indicating a start point of the FDR zone, and second information indicating a number of subcarriers constituting a guard zone located between the FDR zone and a Half Duplex Radio (HDR) zone.

12. The UE according to claim 11,

wherein the control signal is a Physical Downlink Control Channel (PDCCH) signal transmitted through a control channel region or an Enhanced-Physical Downlink Control Channel (E-PDCCH) transmitted through a data channel region.

13. The UE according to claim 11,

wherein the FDR zone allocation information is semi-statically configured during a predetermined number of Transmission Time Intervals (TTIs), and

the FDR zone allocation information is transmitted through a higher-layer signal.

14. The UE according to claim 13,

wherein, if the FDR zone allocation information is differently defined according to each User Equipment (UE) managed by the BS, the FDR zone allocation information is transmitted through UE-specific signaling.

15. The UE according to claim 13,

wherein, if the FDR zone allocation information is defined according to each cell, the FDR zone allocation information is transmitted through cell-specific signaling.