Method of transmitting feedback information in a wireless communication system

• US 9,456,455 B2
• Filed: 01/05/2007
• Issued: 09/27/2016
• 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, Chun, Sung Duck, Jung, Myung Cheul, Park, Sung Jun
• Primary Examiner(s): Lu, Zhiyu
• Application Number:
  US12/159,849
• Publication Number:
  US 20090047912A1
• Time in Patent Office: 3,553 Days
• US Class Current: 1/1
• 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 in a wireless communication system, the method comprising:

receiving periodically information related to a scheduling period for downlink data transmission and a starting point of the scheduling period from a base station;

wherein the scheduling period is set to multiple times of a discontinuous reception (DRX) cycle;

receiving downlink control information including resource allocation information for reporting of channel quality information (CQI) in a subframe,

wherein the downlink control information is received from the base station through a control information transmission region, the downlink control information transmission region is immediately followed by a data transmission region in a time domain of the subframe,

wherein the downlink control information further comprises a cell-radio network Temporal identifier (C-RNTI) corresponding to the user equipment, a number of CQI repetition transmissions, a size of a set of transport blocks and information associated with a symbol within the subframe assigned for transmission of scheduled downlink data in the time domain;

receiving the scheduled downlink data based on the downlink control information and the scheduling period;

transmitting, uplink control information including information indicating that an uplink resource allocated for uplink data transmission is insufficient, to the base station;

transmitting non-periodically reporting of the CQI to the base station via an uplink data transmission region indicated by the resource allocation information according to the downlink control information, and

wherein CQI is included in uplink data.

2. The method of claim 1, wherein the uplink control information further includes a logical channel identity or a buffer occupancy of the user equipment.

3. The method of claim 1, further comprising:

receiving signaling information including a UE identity or a service identity, downlink transport format and rate information (TFRI).

4. The method of claim 1, wherein the scheduling period and the starting point of the scheduling period is set based on a capability of the UE.

5. The method of claim 1, wherein the downlink control information further comprises information associated with subcarriers assigned for transmission of scheduled downlink data in the time domain.