Method of supporting data retransmission in a mobile communication system

• US 8,429,478 B2
• Filed: 06/22/2012
• Issued: 04/23/2013
• Est. Priority Date: 06/21/2006
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Park, Sung Jun, Lee, Young Dae, Chun, Sung Duck, Yi, Seung June
• Primary Examiner(s): BONZO, BRYCE P
• Application Number:
  US13/531,417
• Publication Number:
  US 20120263153A1
• Time in Patent Office: 305 Days
• Field of Search: 714/749
• US Class Current: 714/749
• CPC Class Codes: H04L 1/16 in which the return channel carries supervisory signals, e.g. repetition request signals
• CPC Class Codes: H04L 1/1657 Implicit acknowledgement of correct or incorrect reception, e.g. with a moving window
• CPC Class Codes: H04L 1/1671 the supervisory signal being transmitted together with control information
• CPC Class Codes: H04L 1/1854 Scheduling and prioritising arrangements
• CPC Class Codes: H04L 1/1858 Transmission or retransmission of more than one copy of acknowledgement message
• CPC Class Codes: H04L 1/1887 Scheduling and prioritising arrangements
• CPC Class Codes: H04L 2001/125 Arrangements for preventing errors in the return channel
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal

Abstract

A method of supporting packet transmission in a mobile communication system is disclosed according to the present invention. A method of transmitting packets at a user equipment in a mobile communication system comprises transmitting a first packet to a network and transmitting a second packet to the network regardless of a reception status signal for the first packet, when control information for the second packet is received from the network.

Claims

1. A method of transmitting packets at a user equipment in a mobile communication system, comprising:

transmitting a first packet to a network; and

transmitting a second packet to the network regardless of a reception status signal for the first packet, when control information for the second packet is received from the network.

2. The method of claim 1, wherein the control information comprises an uplink scheduling grant message allocating uplink resources for transmitting the second packet.

3. The method of claim 1, wherein the second packet is not a retransmission packet.

4. The method of claim 1, further comprising:

receiving the reception status signal for the first packet from the network; and

obtaining a negative acknowledgement signal (NACK) by decoding the reception status signal.

5. The method of claim 1, wherein the mobile communication system is based on an orthogonal frequency-division multiplexing (OFDM) scheme or an orthogonal frequency-division multiple access (OFDMA) scheme.

6. A user equipment for transmitting packets in a mobile communication system, the user equipment being adapted to perform the steps of:

transmitting first packet to a network; and

transmitting a second packet to the network regardless of a reception status signal for the first packet, when an uplink scheduling grant message allocating uplink resources for the second packet is received from the network.

7. The user equipment of claim 6, wherein the control information comprises an uplink scheduling grant message allocating uplink resources for transmitting the second packet.

8. The user equipment of claim 6, wherein the second packet is not a retransmission packet.

9. The user equipment of claim 6, wherein the user equipment being further adapted to perform the steps of:

receiving the reception status signal for the first packet from the network; and

obtaining a negative acknowledgement signal (NACK) by decoding the reception status signal.

10. The user equipment of claim 6, wherein the mobile communication system is based on an orthogonal frequency-division multiplexing (OFDM) scheme or an orthogonal frequency-division multiple access (OFDMA) scheme.