APPARATUS AND METHOD FOR PERFORMING SAFE COMMUNICATION IN WIRELESS COMMUNICATION SYSTEM

• US 20130143583A1
• Filed: 11/30/2012
• Published: 06/06/2013
• Est. Priority Date: 12/02/2011
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: SON, Yeong-Moon, TAORI, Rakesh, KANG, Hyun-Jeong
• Granted Patent: US 9,338,766 B2
• Time in Patent Office: Days
• US Class Current: 455/452.2
• CPC Class Codes: H04W 72/20 Control channels or signalling for resource management
• CPC Class Codes: H04W 72/54 based on quality criteria
• CPC Class Codes: H04W 72/542 using measured or perceived quality
• CPC Class Codes: H04W 92/20 between access points

Abstract

A base station, a wireless terminal and a communication method of a wireless communication system are provided. The base station includes a receiver for receiving a signal from a wireless terminal or another base station, a transmitter for transmitting a signal to the wireless terminal or the another base station, and a controller for generating resource scheduling or control information for communication of the wireless terminal in a cell including at least two base stations included in a moving path of the wireless terminal and for transmitting the generated resource scheduling or control information to the wireless terminal and at least one of the base stations included in the cell.

Claims

1. A base station of a wireless communication system, the base station comprising:

a receiver for receiving a signal from a wireless terminal or another base station;

a transmitter for transmitting a signal to the wireless terminal or the other base station; and

a controller for generating resource scheduling or control information for communication of the wireless terminal in a cell including at least two base stations included in a moving path of the wireless terminal and for transmitting the generated resource scheduling or control information to the wireless terminal and at least one of the base stations included in the cell.

2. The base station of claim 1, wherein the controller transmits the resource scheduling or control information to the wireless terminal simultaneously with the at least one base station when the at least one base station transmits the resource scheduling or control information to the wireless terminal.

3. The base station of claim 2, wherein the simultaneous transmission indicates transmission in temporally the same frame.

4. The base station of claim 1, wherein the controller transmits information about the base stations included in the cell to the wireless terminal, generates an update message for the cell based on a scan report with respect to the base stations received from the wireless terminal and the at least one base station, and transmits the generated update message to the wireless terminal and the base stations included in the cell.

5. The base station of claim 4, wherein the scan report comprises at least one of a base station IDentification (ID), a Down Link (DL) beam ID for identifying a DL beam having the best signal strength, determined by the wireless terminal, and a measurement type and a measurement result corresponding to measurement of the wireless terminal.

6. The base station of claim 4, wherein the update message comprises a frame number to which the update of the cell is to be applied and control information for controlling functions of the base stations included in the cell.

7. The base station of claim 4, wherein the update message comprises information about whether a function of the base station is replaced with one of the base stations included in the cell, and information about a base station which replaces the function of the base station.

8. The base station of claim 4, wherein the update message comprises information about whether the function of the at least one base station, which receives the resource scheduling or control information from the base station and transmits the received resource scheduling or control information to the wireless terminal, is replaced with another base station among the base stations included in the cell.

9. The base station of claim 1, wherein upon receiving a pre-defined Channel Quality Indicator (CQI) code from the wireless terminal and the at least one base station which receives the resource scheduling or control information, the controller generates a cell update message for switching functions of the base station and the at least one base stations and transmits the generated cell update message to the base stations included in the cell and the wireless terminal.

10. A base station of a wireless communication system, the base station comprising:

a receiver for receiving a signal from a wireless terminal or another base station;

a transmitter for transmitting a signal to the wireless terminal or the other base station; and

a controller for receiving resource scheduling or control information for communication of the wireless terminal from a base station included in a cell including at least two base stations included in a moving path of the wireless terminal and transmitting the received resource scheduling or control information to the wireless terminal.

11. The base station of claim 10, wherein the controller transmits the resource scheduling or control information to the wireless terminal simultaneously with the base station included in the cell when the base station included in the cell transmits the resource scheduling or control information to the wireless terminal.

12. The base station of claim 11, wherein the simultaneous transmission indicates transmission in temporally the same frame.

13. The base station of claim 10, wherein the controller transmits a scan report with respect to the base stations included in the cell, which is received from the wireless terminal, to the base station included in the cell, and transmits a cell update message received from the base station included in the cell to the wireless terminal.

14. The base station of claim 10, wherein the controller transmits a pre-defined Channel Quality Indicator (CQI) code received from the wireless terminal to the base station included in the cell, and transmits a cell update message for switching functions of the base station and the base station included in the cell, which is received from the base station included in the cell, to the wireless terminal.

15. A wireless terminal of a wireless communication system, the wireless terminal comprising:

a receiver for receiving a signal from base stations;

a transmitter for transmitting a signal to the base stations; and

a controller for simultaneously receiving resource scheduling or control information for communication of the wireless terminal from at least two base stations included in a cell including the at least two base stations included in a moving path of the wireless terminal to perform communication.

16. The wireless terminal of claim 15, wherein the simultaneous transmission indicates transmission in temporally the same frame.

17. The wireless terminal of claim 15, wherein the controller performs scanning with respect to the base stations based on information about the base stations included in the cell, which is received from one of the at least two base stations, and transmits a scan report regarding the scanning result to the at least two base stations.

18. The wireless terminal of claim 17, wherein the controller receives an update message for the cell, which is generated based on the scan report, from the at least two base stations.

19. The wireless terminal of claim 15, wherein the controller transmits a pre-defined Channel Quality Indicator (CQI) code to the at least two base stations, receives a cell update message for switching functions of the at least two base stations from the at least two base stations, and performs cell update.

20. A communication method of a wireless communication system, the communication method comprising:

generating resource scheduling or control information for communication of the wireless terminal in a cell including at least two base stations included in a moving path of a wireless terminal; and

transmitting the resource scheduling or control information to the wireless terminal and at least one of the base stations included in the cell.

21. The communication method of claim 20, wherein the transmitting of the resource scheduling or control information comprises transmitting the resource scheduling or control information to the wireless terminal simultaneously with the least one base station when the at least one base station transmits the resource scheduling or control information to the wireless terminal.

22. The communication method of claim 21, wherein the simultaneous transmission indicates transmission in temporally the same frame.

23. The communication method of claim 20, further comprising:

transmitting information about the base stations included in the cell to the wireless terminal;

generating an update message for the cell based on a scan report with respect to the base stations, which is received from the wireless terminal and the at least one base station; and

transmitting the update message to the wireless terminal and the base stations included in the cell.

24. The communication method of claim 20, further comprising:

receiving a pre-defined Channel Quality Indicator (CQI) code from the wireless terminal and the at least one base station;

generating a cell update message for switching functions of the base station and the at least one base station; and

transmitting the cell update message to the base stations and the wireless terminal.

25. A communication method of a wireless communication system, the communication method comprising:

receiving resource scheduling or control information for communication of the wireless terminal from a base station included in a cell including at least two base stations included in a moving path of the wireless terminal; and

transmitting the received resource scheduling or control information to the wireless terminal.

26. The communication method of claim 25, wherein the transmitting of the resource scheduling or control information comprises transmitting the resource scheduling or control information to the wireless terminal simultaneously with the base station when the base station transmits the resource scheduling or control information to the wireless terminal.

27. The communication method of claim 26, wherein the simultaneous transmission indicates transmission in temporally the same frame.

28. The communication method of claim 25, further comprising:

transmitting scan report with respect to the base stations included in the cell, which is received from the wireless terminal, to the base station; and

transmitting a cell update message received from the base station to the wireless terminal.

29. The communication method of claim 25, further comprising:

receiving a pre-defined Channel Quality Indicator (CQI) code from the wireless terminal;

transmitting the pre-defined CQI code to the base station; and

receiving a cell update message for switching functions with the base station from the base station.

30. A communication method of a wireless communication system, the communication method comprising:

simultaneously receiving resource scheduling or control information for communication of the wireless terminal from at least two base stations included in a cell including the at least two base stations included in a moving path of the wireless terminal; and

performing communication based on the resource scheduling or control information.

31. The communication method of claim 30, wherein the simultaneous transmission indicates transmission in temporally the same frame.

32. The communication method of claim 30, further comprising:

receiving information about the base stations included in the cell from one of the at least two base stations;

performing scanning with respect to the base stations based on information about the base stations;

transmitting a scan report regarding the scanning result to the at least two base stations; and

receiving an update message for the cell, which is generated based on the scan report, from the at least two base stations.

33. The communication method of claim 30, further comprising:

transmitting a pre-defined Channel Quality Indicator (CQI) code to the at least two base stations; and

receiving a cell update message for switching functions of the at least two base stations from the at least two base stations.