Method for setting resource for FDR communication by node in FDR communication environment

• US 10,075,280 B2
• Filed: 01/09/2015
• Issued: 09/11/2018
• Est. Priority Date: 01/23/2014
• Status: Active Grant

• Current Assignee: Industry Academic Cooperation Foundation, LG Electronics, Inc. (LG Corporation)
• Original Assignee: Industry Academic Cooperation Foundation, LG Electronics, Inc. (LG Corporation)
• Inventors: Kam, Seunglae, Chung, Jaehoon, Kim, Jinmin, Lee, Haesoon, Kim, Dongkyu, Hong, Daesik
• Primary Examiner(s): Huq, Obaidul
• Application Number:
  US15/112,627
• Publication Number:
  US 20160337111A1
• Time in Patent Office: 1,341 Days
• Field of Search: 370276, 370277, 370280
• CPC Class Codes: H04L 5/001 the frequencies being arranged in component carriers
• CPC Class Codes: H04L 5/14 Two-way operation using the same type of signal, i.e. duplex
• CPC Class Codes: H04W 72/542 using measured or perceived quality
• CPC Class Codes: H04W 88/08 Access point devices

Abstract

Disclosed is a method for setting a resource for Full Duplex Radio (FDR) Communication by a node in an FDR communication environment. According to the method, resources for the FDR communication can be selected in consideration of channel information of the nodes performing the FDR communication to obtain an improved achievable sum rate compared to Half Duplex Radio (HDR) communication schemes and to acquire diversity effects.

Claims

1. A method of setting resources to be used for a base station (BS) to perform full duplex radio (FDP) communication in an FDR communication environment supporting carrier aggregation, the method performed by the base station and comprising:

estimating channel information on a plurality of frequency resources available through carrier aggregation;

transmitting first channel information estimated for the plurality of frequency resources to a counterpart node with which the BS is to perform FDR communication;

receiving second channel information estimated by the counterpart node; and

selecting a frequency resource to be used for the FDR communication from among the plurality of frequency resources in consideration of the first channel information transmitted to the counterpart node and the second channel information received from the counterpart node,

wherein the BS selects the frequency resource such that the following equation is satisfied,

2. The method according to claim 1, wherein an achievable sum rate of an FDR communication system including the BS and the counterpart node is represented by the following equation,

C^F=[log(1+γ

^F_bh^F_ab)+log(1γ

^F_ah^F_ba)] 

 

[equation]

wherein C^F indicates the achievable stun rate of the FDR communication system.

3. The method according to claim 1, wherein the selected frequency resource is simultaneously occupied by the BS and the counterpart node during the FDR communication.

4. The method according to claim 1, wherein the frequency resource is a component carrier (CC), a cell or a spectrum.

5. The method according to claim 1, wherein the counterpart node performing the FDR communication with the BS is another BS or a user equipment (UE).

6. A BS for setting resources to be used to perform Full Duplex Radio (FDR) communication in an FDR communication environment supporting carrier aggregation, comprising:

a transmitter;

a receiver; and

a processor connected to the transmitter and the receiver to set resources used to perform FDR communication,

wherein the processor is configured to estimate channel information on a plurality of frequency resources available for the BS through carrier aggregation, to control the transmitter to transmit first channel information estimated for the plurality of frequency resources to a counterpart node with which the BS is to perform the FDR communication, to control the receiver to receive second channel information estimated by the counterpart node, and to select a frequency resource to be used for the FDR communication from among the plurality of frequency resources in consideration of the first channel information transmitted to the counterpart node and the second channel information received from the counterpart node,

wherein the BS selects the frequency resource such that the following equation is satisfied,

7. The BS according to claim 6, wherein an achievable sum rate of an FDR communication system including the BS and the counterpart node is represented by the following equation,

C^F=[log(1+γ

^F_bh^F_ab)+log(1γ

^F_ah^F_ba)] 

 

[equation]

wherein C^F indicates the achievable sum rate of the FDR communication system.

8. The BS according to claim 6, wherein the selected frequency resource is simultaneously occupied by the BS and the counterpart node during the FDR communication.

9. The BS according to claim 6, wherein the frequency resource is a component carrier (CC), a cell or a spectrum.

10. The BS according to claim 6, wherein the counterpart node performing the FDR communication with the BS is another BS or a user equipment(UE).