# US 2014/0153515 A1 · Method for transmitting/receiving control information and apparatus for transmitting/receiving

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- Number: US 2014/0153515 A1
- Document ID: US20140153515A1
- Status: Published application
- Kind: A1
- Application number: 14/123,948
- Filed: 2012-01-31
- Published: 2014-06-05
- Earliest claimed: 2011-06-07
- Assignees: LG Electronics Inc.
- Inventors: Jinyoung Chun; Kitae Kim; Sunam Kim; Jiwon Kang; Binchul Ihm; Sungho Park
- Web page: https://patentgrep.com/patent/US20140153515A1

## CPC

- H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal
- H04L 5/0007: {the frequencies being orthogonal, e.g. OFDM(A) or DMT}
- H04L 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals}
- H04L 5/0094: {Indication of how sub-channels of the path are allocated}
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)

## Abstract

The present invention relates to a method for a terminal receiving control information in a distributed multi-node system, and provides a method for receiving the control information comprising the steps of: receiving from a node information relating to a resource allocation method with regard to an enhanced-physical downlink control channel (E-PDCCH); and receiving from the node the control information through the E-PDCCH, based on the information relating to the resource allocation method which is received.

## Claims

### Claim 1

A method of receiving control information, by a user equipment in a distributed multi-node system, the method comprising:
receiving information on a resource assignment scheme for an E-PDCCH (enhanced-physical downlink control channel) from a node; and
receiving the control information from the node via the E-PDCCH based on the received information on the resource assignment scheme.

### Claim 2 (depends on 1)

The method of claim 1, wherein the resource assignment scheme comprises a localized resource assignment scheme and a distributed resource assignment scheme.

### Claim 3 (depends on 1)

The method of claim 1, wherein the information on the resource assignment scheme is received by an RRC (radio resource control) signaling.

### Claim 4 (depends on 1)

The method of claim 1, wherein the information on the resource assignment scheme is received on a PDCCH (physical downlink control channel) in a manner of being contained in downlink control information.

### Claim 5 (depends on 4)

The method of claim 4, wherein the PDCCH in which the information on the resource assignment scheme is received corresponds to an E-PCFICH (enhanced-physical control format indicator channel).

### Claim 6 (depends on 1)

The method of claim 1, wherein the information on the resource assignment scheme is received as a CSI-RS (channel state information-reference signal) and wherein the resource assignment scheme is determined according to which CIS-RS configuration is received.

### Claim 7 (depends on 1)

The method of claim 1, wherein the E-PDCCH comprises information on a resource assignment scheme for a corresponding PDSCH (physical downlink shared channel).

### Claim 8 (depends on 1)

The method of claim 1, wherein the E-PDCCH is received in a data region of a subframe.

### Claim 9

A device receiving control information in a distributed multi-node system, comprising:
a transmitter;
a receiver; and
a processor configured to receive information on a resource assignment scheme for an E-PDCCH (enhanced-physical downlink control channel) from a node in a manner of controlling the receiver, the processor configured to receive control information from the node via the E-PDCCH based on the received information on the resource assignment scheme.

### Claim 10 (depends on 9)

The device of claim 9, wherein the resource assignment scheme comprises a localized resource assignment scheme and a distributed resource assignment scheme.

### Claim 11 (depends on 9)

The device of claim 9, wherein the information on the resource assignment scheme is received by an RRC (radio resource control) signaling.

### Claim 12 (depends on 9)

The device of claim 9, wherein the information on the resource assignment scheme is received on a PDCCH (physical downlink control channel) in a manner of being contained in downlink control information.

### Claim 13 (depends on 12)

The device of claim 12, wherein the PDCCH in which the information on the resource assignment scheme is received corresponds to an E-PCFICH (enhanced-physical control format indicator channel).

### Claim 14 (depends on 9)

The device of claim 9, wherein the information on the resource assignment scheme is received as a CSI-RS (channel state information-reference signal) and wherein the resource assignment scheme is determined according to which CIS-RS configuration is received.

### Claim 15 (depends on 9)

The device of claim 9, wherein the E-PDCCH comprises information on a resource assignment scheme for a corresponding PDSCH (physical downlink shared channel).

### Claim 16 (depends on 9)

The device of claim 9, wherein the E-PDCCH is received in a data region of a subframe.

### Claim 17

A method of transmitting control information, by a node in a distributed multi-node system, the method comprising:
transmitting information on a resource assignment scheme for an E-PDCCH (enhanced-physical downlink control channel); and
transmitting control information via the E-PDCCH according to the resource assignment scheme.

### Claim 18 (depends on 17)

The method of claim 17, wherein the information on the resource assignment scheme is transmitted as a CSI-RS (channel state information-reference signal) and wherein the resource assignment scheme is determined according to which CIS-RS configuration is transmitted.

### Claim 19

A device transmitting control information in a distributed multi-node system, comprising:
a transmitter;
a receiver; and
a processor configured to transmit information on a resource assignment scheme for an E-PDCCH (enhanced-physical downlink control channel) in a manner of controlling the transmitter, the processor configured to transmit control information via the E-PDCCH according to the resource assignment scheme.

### Claim 20 (depends on 19)

The device of claim 19, wherein the information on the resource assignment scheme is transmitted as a CSI-RS (channel state information-reference signal) and wherein the resource assignment scheme is determined according to which CIS-RS configuration is transmitted.
