Method for resolving collision of uplink signals

• US 7,873,005 B2
• Filed: 03/03/2009
• Issued: 01/18/2011
• Est. Priority Date: 03/03/2008
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Yun, Young Woo, Ahn, Joon Kui, Kim, Ki Jun
• Primary Examiner(s): ZEWDU, MELESS NMN
• Application Number:
  US12/396,959
• Publication Number:
  US 20090232095A1
• Time in Patent Office: 686 Days
• Field of Search: 370/280, 370294-295, 370/314, 370336-338, 370/341, 370/410, 370414-418, 370/420, 370/426, 370/430, 370/902, 370/913, 370319-322, 370331-332, 370328-334, 370343-345, 370347-350, 455/69, 455/418, 455/420, 455/434, 455450-451, 4554521-4522, 455/453, 455/464, 455/509, 455/550.1, 455/556.2, 455/561
• US Class Current: 370/329
• 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 controlling a transmission of uplink control information at a user equipment in a wireless communication system, the method comprising:

receiving by the user equipment a random access response including resource allocation information, wherein the resource allocation information indicates a radio resource used for a transmission of a shared channel as part of a random access procedure; and

determining by the user equipment a channel assignment for the uplink control information if the transmission of the uplink control information is needed,

wherein, if the transmission of the shared channel corresponding to the resource allocation information in the random access response is not present at a time when the transmission of the uplink control information is needed, then the transmission of the uplink control information is performed at the time, and

wherein if the transmission of the shared channel corresponding to the resource allocation information in the random access response is present at a time when the transmission of the uplink control information is needed, then the transmission of the uplink control information is discarded at the time.

2. The method according to claim 1, wherein the time when the transmission of the uplink control information is needed indicates a Transmission Time Interval (TTI) or a subframe when the transmission of the uplink control information is needed.

3. The method according to claim 1, wherein the uplink control information includes at least one of 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.

4. The method according to claim 1, wherein the shared channel includes a Physical Uplink Shared CHannel (PUSCH).

5. The method according to claim 1, further comprising:

performing the transmission of the shared channel in uplink while not transmitting the uplink control information.

6. A user equipment in a wireless communication system, the user equipment comprising:

a radio frequency (RF) module configured to transmit/receive radio signal to/from a base station;

a symbol generation module connected to the RF module and configured to generate Single Carrier-Frequency Division Multiple Access (SC-FDMA) symbol to be transmitted to the base station; and

a processor configured to control the RF module and the symbol generation module and to perform operations according to radio interface protocol,

wherein the processor is configured to receive a random access response including resource allocation information, the resource allocation information indicating a radio resource used for a transmission of a shared channel as part of a random access procedure,

wherein the processor is configured to determine a channel assignment for the transmission of the uplink control information when the transmission of the uplink control information is needed,

wherein, if the transmission of the shared channel corresponding to the resource allocation information in the random access response is not present at a time when the transmission of the uplink control information is needed, the processor is configured to perform the transmission of the uplink control information at the time, and

wherein, if the transmission of the shared channel corresponding to the resource allocation information in the random access response is present at a time when the transmission of the uplink control information is needed, the processor is configured to discard the transmission of the uplink control information at the time.

7. The user equipment according to claim 6, wherein the time when the transmission of the uplink control information is needed indicates a Transmission Time Interval (TTI) or a subframe when the transmission of the uplink control information is needed.

8. The user equipment according to claim 6, wherein the uplink control information includes at least one of 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.

9. The user equipment according to claim 6, wherein the shared channel includes a Physical Uplink Shared CHannel (PUSCH).

10. The user equipment according to claim 6, wherein the processor is further configured to perform the transmission of the shared channel in uplink while not transmitting the uplink control information.