METHOD FOR RESOLVING COLLISION OF UPLINK SIGNALS

• US 20090232095A1
• Filed: 03/03/2009
• Published: 09/17/2009
• Est. Priority Date: 03/03/2008
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Kim, Ki Jun, Yun, Young Woo, AHN, Joon Kui
• Granted Patent: US 7,873,005 B2
• Time in Patent Office: Days
• US Class Current: 370/331
• CPC Class Codes: H04W 74/006 in the downlink, i.e. towards the terminal
• CPC Class Codes: H04W 74/0833 Random access procedures, e.g. with 4-step access

Abstract

A method for processing data in a wireless communication system is provided. The method includes receiving a first uplink scheduling command indicating a first radio resource, receiving a second uplink scheduling command indicating a second radio resource through a random access response, and stopping a procedure associated with the second uplink scheduling command when the first radio resource and the second radio resource collide.

Claims

1. A method for processing data in a wireless communication system, the method comprising:

receiving a first uplink scheduling command indicating a first radio resource;

receiving a second uplink scheduling command indicating a second radio resource through a random access response; and

stopping a procedure associated with the second uplink scheduling command when the first radio resource and the second radio resource collide.

2. The method according to claim 1, wherein the collision of the first radio resource and the second radio resource includes overlapping of at least a part of a time resource and a frequency resource indicated by the first radio resource and the second radio resource.

3. The method according to claim 1, wherein the collision of the first radio resource and the second radio resource includes a state in which the first radio resource and the second radio resource indicate the same Transmission Time Interval (TTI) or subframe.

4. A method for processing data while random access is performed in a wireless communication system, the method comprising:

receiving a first uplink scheduling command through a random access response;

receiving downlink information at the time when or after the random access response is received; and

stopping a procedure associated with the downlink information.

5. The method according to claim 4, wherein the wireless communication system supports Single Carrier-Frequency Division Multiple Access (SC-FDMA) for uplink transmission.

6. The method according to claim 4, wherein the random access response and the downlink information are received through the same Transmission Time Interval (TTI) or subframe.

7. The method according to claim 4, wherein the random access response and the downlink information are received through a Physical Downlink Shared CHannel (PDSCH).

8. The method according to claim 7, wherein the random access response and the downlink information are indicated respectively by a Physical Downlink Control CHannel (PDCCH) masked with a Random Access-Radio Network Temporary Identity (RA-RNTI) and a PDCCH masked with a Cell-RNTI (C-RNTI).

9. The method according to claim 8, further comprising omitting decoding of the PDCCH masked with the C-RNTI or ignoring the PDCCH masked with the C-RNTI.

10. The method according to claim 4, wherein the step of stopping the procedure associated with the downlink information includes omitting decoding of the downlink information or ignoring the downlink information.

11. A method for transmitting uplink data in a wireless communication system, the method comprising:

receiving a first uplink scheduling command indicating a first radio resource through a random access response;

determining a second radio resource for transmission of an uplink control information; and

stopping the transmission of the uplink control information when the first radio resource and the second radio resource collide.

12. The method according to claim 11, wherein the collision of the first radio resource and the second radio resource includes overlapping of at least a part of a time resource and a frequency resource indicated by the first radio resource and the second radio resource.

13. The method according to claim 12, wherein the collision of the first radio resource and the second radio resource includes a state in which the first radio resource and the second radio resource indicate the same Transmission Time Interval (TTI) or subframe.

14. The method according to claim 11, wherein the uplink control information includes an Acknowledgment (ACK)/Negative-Acknowledgement (NACK) signal used to perform Hybrid Automatic Repeat Request (HARQ), a Channel Quality Indicator (CQI) indicating a downlink channel status, and a scheduling request signal which serves to request allocation of uplink radio resources.

15. The method according to claim 11, further comprising transmitting uplink data according to the first uplink scheduling command through a Physical Uplink Shared CHannel (PUSCH).