Method of transmitting at least one sub-packet based on feedback information in a wireless communication system

• US 8,358,630 B2
• Filed: 02/05/2007
• Issued: 01/22/2013
• Est. Priority Date: 02/03/2006
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Kim, Sang G., Wang, Shu, Yoon, Young Cheul, Sun, Li-Hsiang, Kwon, Soonyil, Lee, Suk Woo, Kim, Hobin
• Primary Examiner(s): Akonai, Olumide T Ajibade
• Assistant Examiner(s): YI, ALEXANDER J.
• Application Number:
  US11/671,437
• Publication Number:
  US 20070201437A1
• Time in Patent Office: 2,178 Days
• Field of Search: 455/101, 455/69, 370/332, 370/352, 370/330
• US Class Current: 370/332
• CPC Class Codes: H04B 17/24 with feedback of measurements to the transmitter
• CPC Class Codes: H04B 7/0491 using two or more sectors, i.e. sector diversity
• CPC Class Codes: H04B 7/061 using feedback from receiving side
• CPC Class Codes: H04B 7/0632 Channel quality parameters, e.g. channel quality indicator [CQI]
• CPC Class Codes: H04B 7/0641 Differential feedback
• CPC Class Codes: H04B 7/0647 Variable feedback rate
• CPC Class Codes: H04B 7/12 Frequency diversity
• CPC Class Codes: H04L 1/0003 by switching between different modulation schemes
• CPC Class Codes: H04L 1/0009 by adapting the channel coding H04L1/1812 takes precedence
• CPC Class Codes: H04L 1/0026 Transmission of channel quality indication
• CPC Class Codes: H04L 1/0027 Scheduling of signalling, e.g. occurrence thereof
• CPC Class Codes: H04L 1/0028 Formatting
• CPC Class Codes: H04L 1/06 using space diversity
• CPC Class Codes: H04L 1/1812 Hybrid protocols; Hybrid automatic repeat request [HARQ]
• CPC Class Codes: H04L 1/1893 Physical mapping arrangements physical resource mapping in general H04L5/00
• CPC Class Codes: H04L 47/10 Flow control; Congestion control
• CPC Class Codes: H04W 52/08 Closed loop power control

Abstract

A method of transmitting subsequent sub-packets in a wireless communication system using a hybrid automatic request (HARQ) technique is disclosed. The method includes receiving feedback information from at least one receiving end, transmitting a transmit packet via at least one overhead channel, wherein the transmit packet includes information on carrier and antenna combination selected for subsequent transmission, and transmitting at least one sub-packet according to the selected carrier and antenna combination.

Claims

1. A method of transmitting data packets in a wireless communication system using a multiple input multiple output (MIMO) scheme supporting multiple carriers, the method comprising:

receiving feedback information from at least one access terminal, wherein the feedback information comprises information of at least one combination of a carrier or a subcarrier, an antenna and a sector, and information indicating a best pilot type corresponding to each antenna of the at least one combination from among predefined pilot types,

wherein the at least one combination has the best channel condition; and

transmitting a transmit packet via at least one data channel based on the best pilot type corresponding to each antenna of the at least one combination having the best channel condition;

wherein re-transmission of subsequent transmit packets are performed using an automatic request (ARQ) or an hybrid-ARQ (HARQ) scheme using the at least one combination which can be set to be different from the previous at least one combination used to transmit the previous transmit packet based on the received feedback information.

2. The method of claim 1, wherein the transmit packet is transmitted via the at least one combination having the best channel condition.

3. The method of claim 2, wherein the transmit packet is transmitted via the best pilot type corresponding to the antenna of the at least one combination having the best channel condition.

4. The method of claim 1, wherein the feedback information further comprises a number of carriers available for transmission.

5. The method of claim 1, wherein the transmit packet is transmitted using a transmission format different from a transmission format of a previously transmitted at least one transmit packet.

6. The method of claim 5, wherein the transmission format refers to a modulated format.