METHOD OF TRANSMITTING AND RECEIVING DATA IN A WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREFOR

• US 20130336227A1
• Filed: 02/27/2012
• Published: 12/19/2013
• Est. Priority Date: 03/01/2011
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Cho, Heejeong, Lee, Eunjong, Yuk, Youngsoo, Ryu, Kiseon
• Granted Patent: US 9,363,842 B2
• Time in Patent Office: Days
• US Class Current: 370/328
• CPC Class Codes: H04B 7/026 Co-operative diversity, e.g. using fixed or mobile stations as relays
• CPC Class Codes: H04W 48/10 using broadcasted information
• CPC Class Codes: H04W 48/16 Discovering, processing access restriction or access information
• CPC Class Codes: H04W 76/14 Direct-mode setup
• CPC Class Codes: H04W 76/15 Setup of multiple wireless link connections
• CPC Class Codes: H04W 88/04 adapted for relaying to or from another terminal or user

Abstract

The present invention relates to a method and apparatus for transmitting and receiving data in a wireless communication. In a communication performed by a user equipment supporting a multi-RAT (multi-radio access technology), the present invention includes receiving a 1st information for identifying a 1st cooperative user equipment candidate from the 1st cooperative user equipment candidate corresponding to at least one of a plurality of cooperative user equipment candidates, transmitting the 1st information to a base station, receiving an information on at least one 2nd cooperative user equipment candidate determined among the at least one 1st cooperative user equipment candidate using the 1st information from the base station, and performing a communication of a 1st data with the base station in cooperation with the at least one 2nd cooperative user equipment candidate. Moreover, the user equipment and a plurality of the cooperative user equipment candidates support a direct communication without using an access point.

Claims

1. A method of performing a communication, which is performed by a user equipment supporting a multi-RAT (multi-radio access technology), comprising the steps of:

receiving a 1st information for identifying a 1st cooperative user equipment candidate from the 1st cooperative user equipment candidate corresponding to at least one of a plurality of cooperative user equipment candidates;

transmitting the 1st information to a base station;

receiving an information on at least one 2nd cooperative user equipment candidate determined among the at least one 1st cooperative user equipment candidate using the 1st information from the base station; and

performing a communication of a 1st data with the base station in cooperation with the at least one 2nd cooperative user equipment candidate,

wherein the user equipment and a plurality of the cooperative user equipment candidates support a direct communication without using an access point.

2. The method of claim 1, further comprising the step of transmitting a 1st probe request message to a plurality of the cooperative user equipment candidates, wherein the 1st information is received from the 1st cooperative user equipment candidate in a manner of being contained in a probe response message in response to the 1st probe request message.

3. The method of claim 1, wherein the 1st information comprises at least one selected from the group consisting of a MAC (medium access control) address information and a service set identifier (SSID) information.

4. The method of claim 1, wherein a 1st radio access scheme is applied between the user equipment and a plurality of the cooperative user equipment candidates and wherein a 2nd radio access scheme is applied between a plurality of the cooperative user equipment candidates and the base station.

5. The method of claim 4, wherein the 1st radio access scheme is WiFi (wireless fidelity) access scheme and wherein the 2nd radio access scheme is WiMAX (worldwide interoperability for microwave access) scheme.

6. The method of claim 4, further comprising the step of performing a communication of a 2nd data with the base station by the user equipment via the 2nd radio access scheme.

7. The method of claim 1, wherein a same radio access scheme is applied among the user equipment, a plurality of the cooperative user equipment candidates and the base station.

8. The method of claim 1, further comprising the step of receiving an information on a 3rd cooperative user equipment candidate corresponding to at least one of a plurality of the cooperative user equipment candidates from the base station, wherein the 1st probe request message is sent to the 3rd cooperative user equipment candidate.

9. The method of claim 1, further comprising the steps of:

transmitting a 2nd probe request message to the 2nd cooperative user equipment candidate; and

receiving a 2nd probe response message from a 4th cooperative user equipment candidate corresponding to at least one of the at least one 2nd cooperative user equipment candidate in response to the 2nd probe request message,

wherein the communication of the 1st data with the base station is performed using at least one of the at least one 4th cooperative user equipment candidate.

10. The method of claim 9, wherein the 2nd probe request message is periodically transmitted.

11. A method of performing a communication, which is performed by a cooperative user equipment candidate supporting a multi-RAT (multi-radio access technology), comprising the steps of:

receiving a 1st information for identifying a user equipment from a base station;

transmitting a probe request message to the user equipment using the 1st information;

receiving a probe response message from the user equipment in response to the probe request message;

transmitting a 2nd information indicating that the probe response message is received to the base station; and

performing a communication of a 1st data with the base station using the user equipment,

wherein the user equipment, the cooperative user equipment candidate and the base station support IBSS (independent basic service set) performing a direct communication without using an access point.

12. The method of claim 11, wherein a 1st radio access scheme is applied between the user equipment and the cooperative user equipment candidate and wherein a 2nd radio access scheme is applied between the cooperative user equipment candidate and the base station.

13. The method of claim 12, wherein the 1st radio access scheme is WiFi (wireless fidelity) access scheme and wherein the 2nd radio access scheme is WiMAX (worldwide interoperability for microwave access) scheme.

14. The method of claim 12, wherein a same radio access scheme is applied among the user equipment, the cooperative user equipment candidate and the base station.

15. A user equipment, which supports a multi-RAT (multi-radio access technology), comprising:

a receiving module receiving a 1st information for identifying a 1st cooperative user equipment candidate from the 1st cooperative user equipment candidate corresponding to at least one of a plurality of cooperative user equipment candidates;

a transmitting module transmitting the 1st information to a base station;

a processor, if an information on at least one 2nd cooperative user equipment candidate determined among the at least one 1st cooperative user equipment candidate using the 1st information is received from the base station via the receiving module, performing a communication of a 1st data with the base station in cooperation with the at least one 2nd cooperative user equipment candidate,

wherein the user equipment and a plurality of the cooperative user equipment candidates support a direct communication not using an access point.

16. The user equipment of claim 15, wherein the processor controls the transmitting module to transmit a 1st probe request message to a plurality of the cooperative user equipment candidates and wherein the 1st information is received from the 1st cooperative user equipment candidate in a manner of being contained in a probe response message in response to the 1st probe request message.

17. The user equipment of claim 15, wherein the 1st information comprises at least one selected from the group consisting of a MAC (medium access control) address information and a service set identifier (SSID) information.

18. The user equipment of claim 15, wherein a 1st radio access scheme is applied between the user equipment and a plurality of the cooperative user equipment candidates, wherein a 2nd radio access scheme is applied between a plurality of the cooperative user equipment candidates and the base station, wherein the 1st radio access scheme is WiFi (wireless fidelity) access scheme, and wherein the 2nd radio access scheme is WiMAX (worldwide interoperability for microwave access) scheme.

19. The user equipment of claim 18, wherein the processor controls the user equipment to perform a communication of a 2nd data with the base station via the 2nd radio access scheme.

20. A cooperative user equipment candidate, which supports a multi-RAT (multi-radio access technology), comprising:

a receiving module receiving a 1st information for identifying a user equipment from a base station;

a transmitting module transmitting a probe request message to the user equipment using the 1st information; and

a processor, if a probe response message is received from the user equipment via the receiving module in response to the probe request message, controlling the transmitting module to transmit a 2nd information indicating that the probe response message is received to the base station, the processor controlling a communication of a 1st data with the base station to be performed using the user equipment, wherein the user equipment, the cooperative user equipment candidate and the base station support IBSS (independent basic service set) performing a direct communication without using an access point.