# US 2019/0174467 A1 · Method, apparatus, and system for transmitting control information

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- Number: US 2019/0174467 A1
- Document ID: US20190174467A1
- Status: Published application
- Kind: A1
- Application number: 16/256,273
- Filed: 2019-01-24
- Published: 2019-06-06
- Earliest claimed: 2012-08-02
- Assignees: Huawei Technologies Co., Ltd.
- Applicants: Huawei Technologies Co.,Ltd.
- Inventors: Zhenfei Tang; Yuanjie Li
- Web page: https://patentgrep.com/patent/US20190174467A1

## 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 5/0046: {Determination of the number of bits transmitted on different sub-channels}
- H04L 5/0048: {Allocation of pilot signals, i.e. of signals known to the receiver (allocation of control signalling H04L5/0053; use of control signalling H04L5/0091)}
- H04L 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals}
- 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

Embodiments of the present invention disclose a method, an apparatus, and a system for transmitting control information. The method includes: determining enhanced resource element group numbers in resource blocks, and determining, according to the resource element group numbers, positions of resource elements corresponding to enhanced resource element groups; interleaving the enhanced resource element group numbers, and determining an enhanced control channel element; determining, according to the enhanced control channel element and the positions of the resource elements corresponding to the enhanced resource element groups, positions of resource elements corresponding to the enhanced control channel element; and transmitting corresponding control information on the positions of the resource elements corresponding to the control channel element. The present invention alleviates a problem that channel frequency diversity is poor, and lowers the probability of loss of information of a terminal device.

## Claims

### Claim 1

A method for receiving control information, the method comprising:
determining, according to a number of an enhanced control channel element (eCCE), a number of a resource block (RB), and at least one offset value respectively corresponding to at least one enhanced resource element group (eREG) in the RB, the at least one eREG in the RB corresponding to the eCCE; and
receiving control information from a base station on resource elements corresponding to the at least one eREG in the RB.

### Claim 2 (depends on 1)

The method for receiving control information according to claim 1, wherein the RB belongs to a RB group comprising at least two RBs.

### Claim 3 (depends on 2)

The method for receiving control information according to claim 2, wherein the determining, according to the number of the eCCE, the number of the RB, and the at least one offset value respectively corresponding to the at least one eREG in the RB, the at least one eREG in the RB corresponding to the eCCE comprises:
determining, according to the number of the eCCE, the number of the RB, the at least one offset value respectively corresponding to the at least one eREG in the RB, and a first parameter value, the at least one eREG in the RB corresponding to the eCCE; and
wherein the first parameter value comprises an amount of RBs in the RB group.

### Claim 4

A device, comprising:
a non-transitory computer-readable storage medium storing programming instructions; and
a processor coupled to the storage medium wherein the processor executes the instructions to:
determine, according to a number of an enhanced control channel element (eCCE), a number of a resource block (RB), and at least one offset value respectively corresponding to at least one enhanced resource element group (eREG) in the RB, the at least one eREG in the RB corresponding to the eCCE; and
receive control information from a base station on resource elements corresponding to the at least one eREG in the RB.

### Claim 5 (depends on 4)

The device according to claim 4, wherein the RB belongs to a RB group comprising at least two RBs.

### Claim 6 (depends on 5)

The device according to claim 5, wherein the determining, according to the number of the eCCE, the number of the RB, and the at least one offset value respectively corresponding to the at least one eREG in the RB, the at least one eREG in the RB corresponding to the eCCE comprises:
determining, according to the number of the eCCE, the number of the RB, the at least one offset value respectively corresponding to the at least one eREG in the RB, and a first parameter value, the at least one eREG in the RB corresponding to the eCCE;
wherein the first parameter value comprises an amount of RBs in the RB group.

### Claim 7

A computer program product, comprising computer executable instructions stored on a non-transitory computer-readable medium, wherein when the instructions are executed by a processor, causes the processor to:
determine, according to a number of an enhanced control channel element (eCCE), a number of a resource block (RB), and at least one offset value respectively corresponding to at least one enhanced resource element group (eREG) in the RB, the at least one eREG in the RB corresponding to the eCCE; and
receive control information from a base station on resource elements corresponding to the at least one eREG in the RB.

### Claim 8 (depends on 7)

The computer program product according to claim 7, wherein the RB belongs to a RB group comprising at least two RBs.

### Claim 9 (depends on 8)

The computer program product according to claim 8, wherein the determining, according to the number of the eCCE, the number of the RB, and the at least one offset value respectively corresponding to the at least one eREG in the RB, the at least one eREG in the RB corresponding to the eCCE comprises:
determining, according to the number of the eCCE, the number of the RB, the at least one offset value respectively corresponding to the at least one eREG in the RB, and a first parameter value, the at least one eREG in the RB corresponding to the eCCE; and
wherein the first parameter value comprises an amount of RBs in the RB group.