Wireless communication system and method for sharing sensing antenna, sensing receiver, data transceiver antenna, and data transceiver

• US 8,594,585 B2
• Filed: 07/01/2010
• Issued: 11/26/2013
• Est. Priority Date: 11/30/2009
• Status: Active Grant

• Current Assignee: Electronics and Telecommunications Research Institute
• Original Assignee: Electronics and Telecommunications Research Institute
• Inventors: Song, Myung Sun, Ko, Gwangzeen, Lim, Sunmin, Kim, Sang-Won, Jung, Hoiyoon
• Primary Examiner(s): Milord, Marceau
• Application Number:
  US12/828,675
• Publication Number:
  US 20110130101A1
• Time in Patent Office: 1,244 Days
• Field of Search: 455/82, 455/450, 455/452.1, 455/69, 455/509, 455/550.1, 455/63.1, 455/63.2, 455/63.3, 370/445, 370/462
• US Class Current: 455/82
• CPC Class Codes: H04W 16/14 Spectrum sharing arrangements between different networks

Abstract

Provided is a method of sharing a data transceiver, a data transceiver antenna, a sensing receiver, and a sensing antenna, and a wireless communication system. The data transceiver and the sensing receiver, or the data transceiver antenna and the sensing antenna may be flexibly shared based on a condition. During a period where a transceiver and an antenna are utilized, the transceiver and the antenna may be utilized for different purposes. The transceiver and the antenna may be flexibly shared to increase efficiency in using the transceiver and the antenna, and thus, a spectrum sensing and a data transmission and reception performed in a system may be improved.

Claims

1. A method of sharing a data transceiver and a sensing receiver, the method comprising:

utilizing the data transceiver with the sensing receiver to receive sensing data by;

determining whether a current time period is a data transmission-and-reception period;

determining whether the current time period is a transmission quiet period (QP), when the current time period is different from the data transmission-and-reception period; and

utilizing the data transceiver with the sensing receiver to receive the sensing data when the current time period is the transmission QP; and

utilizing the sensing receiver with the data transceiver to receive data.

2. The method of claim 1, wherein the utilizing of the data transceiver with the sensing receiver to receive the sensing data comprises:

setting the data transceiver to an in-band sensing mode to receive the sensing data; and

transmitting, by the data transceiver, the received data to a sensing signal processing unit associated with the sensing receiver.

3. The method of claim 1, further comprising:

determining whether a sensing schedule associated with the data transceiver exists when the current time period is different from the transmission QP;

receiving, by the data transceiver, the sensing data according to the sensing schedule when the sensing schedule exists; and

receiving, by the data transceiver, the sensing data according to a schedule and a channel which are the same as the sensing receiver when the sensing schedule does not exist.

4. The method of claim 1, wherein the utilizing of the sensing receiver with the data transceiver to receive the data comprises:

determining whether a current time period is a sensing period;

determining the current time period is a data transmission-and-reception period when the current time period is different from the sensing period; and

utilizing the sensing receiver with the data transceiver to receive the data when the current time period is the data transmission-and-reception period and a time period of a CR device including the sensing receiver is a data reception period.

5. The method of claim 4, further comprising one of

transmitting data when the time period of the CR device is a data transmission period and the sensing receiver includes a transmission function, and

standing by when the time period of the CR device is the data transmission period and the sensing receiver only includes a reception function.

6. The method of claim 1, wherein the utilizing of the sensing receiver with the data transceiver to receive the data comprises:

transmitting, by the sensing receiver, the received data to a signal processing unit associated with the data transceiver.

7. A method of sharing a data transceiver antenna and a sensing antenna, the method comprising:

connecting the data transceiver antenna with a sensing receiver to receive sensing data by;

determining whether a current time period is a data transmission-and-reception period; and

connecting the data transceiver antenna with the sensing receiver to receive the sensing data when the current time period is different from the data transmission-and-reception period; and

connecting the sensing antenna with a data transceiver to transmit or to receive data.

8. The method of claim 7, further comprising:

connecting the data transceiver antenna with the data transceiver to transmit data when the time period is both the data transmission-and-reception period and the data transmission period.

9. The method of claim 7, further comprising:

when the time period is both the data transmission-and-reception period and the data reception period, performing one of connecting the data transceiver antenna with the data transceiver to receive data in an in-band and connecting the data transceiver antenna with the sensing receiver to receive the sensing data in an out-band.

10. The method of claim 7, wherein the connecting of the sensing antenna with the data transceiver to transmit or to receive the data comprises:

determining whether a current time period is a sensing period; and

connecting the sensing antenna with the data transceiver to transmit or to receive the data when the current time period is different from the sensing period.

11. The method of claim 10, further comprising:

when the current time period is the sensing period and is different from an in-band sensing period, performing one of connecting the sensing antenna with the sensing receiver to receive sensing data in an out-band and connecting the sensing antenna with the data transceiver to receive the data in an in-band.

12. The method of claim 10, further comprising:

connecting the sensing antenna with the sensing receiver to receive sensing data according to a sensing schedule, when the current time period is both the sensing period and an in-band sensing period.

13. A wireless communication system that uses a data transceiver to sense data or uses a sensing receiver to receive data, the system comprising:

a signal processing unit to determine whether a current time period is a data transmission-and-reception period;

a data transceiver to transmit or to receive data when the current time period is the data transmission-and-reception period, and to receive sensing data when the current time period is different from the data transmission-and-reception period and is a transmission QP;

a sensing signal processing unit to determine whether the current time period is a sensing period; and

a sensing receiver to receive the sensing data when the current time period is the sensing period, and to receive the data, together with the data transceiver, when the current time period is the data transmission-and-reception period as opposed to being the sensing period and a time period of a CR device including the sensing receiver is a data reception period.

14. The wireless communication system of claim 13, wherein:

the data signal processing unit determines whether a sensing schedule associated with the data transceiver exists when the current time period is different from the transmission QP; and

the data transceiver receives the sensing data according to a sensing schedule when the sensing schedule exists and receives the sensing data according to a schedule and a channel that are the same as the sensing receiver when the sensing schedule does not exist.

15. The wireless communication system of claim 13, wherein the sensing receiver stands by when the current time period is different from the sensing period and is different from the data transmission-and-reception period, transmits the data when the time period of the CR device is the data transmission period and includes only a transmission function, and stands by when the time period of the CR device is the data transmission period and includes only a reception function.

16. The wireless communication system of claim 15, further comprising:

a data transceiver antenna to perform;

connecting with the sensing receiver to receive the sensing data when the current time period is different from the data transmission-and-reception period,

connecting with the data transceiver to transmit the data when the current time period is both the data transmission-and-reception period and the data transmission period, and

connecting with the data transceiver to receive the data in an in-band or connecting with the sensing receiver to receive the sensing data in an out-band, when the current time period is both the data transmission-and-reception period and the data reception period.

17. The wireless communication system of claim 13, further comprising:

a sensing antenna to perform;

connecting with the data transceiver to transmit or to receive the data when the current time period is different from the sensing period,

connecting with the sensing receiver to receive the sensing data in an out-band or connecting with the data transceiver to receive the data in an in-band, when the current time period is the sensing period and is different from an in-band sensing period, and

connecting with the sensing receiver to receive the sensing data according to a sensing schedule when the current time period is both the sensing period and the in-band sensing period.