METHOD OF TRANSMITTING FEEDBACK INFORMATION IN A WIRELESS COMMUNICATION SYSTEM

• US 20090047912A1
• Filed: 01/05/2007
• Published: 02/19/2009
• Est. Priority Date: 01/05/2006
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Lee, Young Dae, Park, Sung Jun, Chun, Sung Duck, Jung, Myung Cheul
• Granted Patent: US 9,456,455 B2
• Time in Patent Office: Days
• US Class Current: 455/69
• CPC Class Codes: H04L 1/0025 Transmission of mode-switching indication
• CPC Class Codes: H04L 1/0026 Transmission of channel quality indication
• CPC Class Codes: H04L 1/0028 Formatting
• CPC Class Codes: H04L 1/1671 the supervisory signal being transmitted together with control information
• CPC Class Codes: H04L 1/1812 Hybrid protocols; Hybrid automatic repeat request [HARQ]
• CPC Class Codes: H04L 5/0007 the frequencies being orthogonal, e.g. OFDM(A), DMT
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04L 5/006 Quality of the received signal, e.g. BER, SNR, water filling
• CPC Class Codes: H04L 5/0064 Rate requirement of the data, e.g. scalable bandwidth, data priority
• CPC Class Codes: H04L 5/0091 Signaling for the administration of the divided path
• CPC Class Codes: H04W 28/18 Negotiating wireless communication parameters
• CPC Class Codes: H04W 72/1263 Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal

Abstract

A method of transmitting feedback information at a user equipment (UE) in a wireless communication system comprising a network and a plurality of UEs is disclosed, the method comprising receiving information associated with a time-frequency region for transmitting feedback information related with downlink data, the time-frequency region being dynamically allocated by the network, receiving the downlink data from the network, and transmitting the feedback information for the downlink data to the network on the time-frequency region.

Claims

1. A method of transmitting feedback information at a user equipment (UE) in a wireless communication system comprising a network and a plurality of UEs, the method comprising:

receiving control information including signaling information necessary for receiving downlink data from the network and radio resource allocation information necessary for transmitting feedback information associated with the downlink data;

receiving the downlink data transmitted from the network using the signaling information; and

transmitting the feedback information for the downlink data to the network through uplink radio resource indicated by the radio resource allocation information.

2. The method of claim 1, wherein the feedback information includes at least one of channel quality information and ACK/NACK information.

3. The method of claim 1, wherein the wireless communication system is an OFDM or OFDMA system and the radio resource allocation information is information associated with a time-frequency region for transmitting the feedback information.

4. The method of claim 3, wherein the feedback information is transmitted through a control information transmission region.

5. The method of claim 3, wherein the feedback information is transmitted through a data transmission region.

6. The method of claim 3, wherein the signaling information includes a UE identity or a service identity, downlink transport format and rate information (TFRI), and information associated with a time-frequency region through which the downlink data is transmitted.

7. A method of transmitting feedback information at a user equipment (UE) in a wireless communication system comprising a network and a plurality of UEs, the method comprising:

receiving information associated with a time-frequency region for transmitting feedback information related with downlink data, the time-frequency region being dynamically allocated by the network;

receiving the downlink data from the network; and

transmitting the feedback information for the downlink data to the network on the time-frequency region.

8. The method of claim 7, wherein the feedback information includes at least one of channel quality information and ACK/NACK information.

9. A method of supporting feedback information transmission at a network in a wireless communication system comprising a network and a plurality of UEs, the method comprising:

transmitting control information to at least one UE, the control information including signaling information necessary for receiving downlink data and radio resource allocation information necessary for transmitting feedback information associated with the downlink data;

transmitting the downlink data to the at least one UE in accordance with the signaling information; and

receiving the feedback information for the downlink data from the at least one UE through uplink radio resource indicated by the radio resource allocation information.

10. A method of supporting feedback information transmission at a network in a wireless communication system comprising a network and a plurality of user equipments (UEs), the method comprising:

transmitting information a associated with a time-frequency region for transmitting feedback information related with downlink data to a UE, the time-frequency region being dynamically allocated by the network;

transmitting the downlink data to the UE; and

receiving the feedback information for the downlink data from the UE on the time-frequency region.