METHOD FOR TRANSMITTING AND RECEIVING CONTROL INFORMATION OF A MOBILE COMMUNICATION SYSTEM

• US 20170026946A1
• Filed: 10/08/2016
• Published: 01/26/2017
• Est. Priority Date: 06/07/2011
• Status: Active Grant

• Current Assignee: Electronics and Telecommunications Research Institute
• Original Assignee: Electronics and Telecommunications Research Institute
• Inventors: Seo, Bang-Won, Ko, Young-Jo, Noh, Tae-Gyun, Ahn, Jae-Young
• Granted Patent: US 9,839,026 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04L 5/0035 Resource allocation in a cooperative multipoint environment
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04L 5/0094 Indication of how sub-channels of the path are allocated
• CPC Class Codes: H04W 72/0446 Resources in time domain, e.g. slots or frames
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal

Abstract

The method for transmitting control information in a mobile communication system includes: determining a control channel resource for transmitting control information by means of the data channel region; and transmitting the control information using the determined control channel resource. A capacity for control information, which increases for multiple user multiple-input multiple-out (MIMOs) in a heterogeneous network environment, for heterogeneous network interference control using carrier aggregation, for frequent use of a multicast-broadcast single frequency network (MBSFN) subframe, and for a CoMP transmission control, may be satisfied. Further, an adaptive resource allocation based on a requested capacity for control information may be enabled, and the efficient utilization of resources may also be enabled.

Claims

1. A method in which a base station transmits downlink control information to a terminal in a mobile communication system where a Physical Downlink Control Channel (PDCCH) area is divided from a Physical Downlink Shared Channel (PDSCH) area, the method comprising:

creating the downlink control information;

deciding an enhanced Physical Downlink Control Channel (ePDCCH) resource for transmitting the downlink control information through the PDSCH area; and

transmitting the downlink control information to the terminal using the ePDCCH resource.

2. A method in which a terminal receives downlink control information from a base station in a mobile communication system where a Physical Downlink Control Channel (PDCCH) area is divided from a Physical Downlink Shared Channel (PDSCH) area, the method comprising:

deciding an enhanced Physical Downlink Control Channel (ePDCCH) resource for receiving the downlink control information through the PDSCH area; and

receiving the downlink control information using the ePDCCH resource.