# US 2018/0324017 A1 · Configuration method for physical channel, base station and user equipment

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- Number: US 2018/0324017 A1
- Document ID: US20180324017A1
- Status: Published application
- Kind: A1
- Application number: 15/773,321
- Filed: 2016-11-04
- Published: 2018-11-08
- Earliest claimed: 2015-11-05
- Assignees: Sharp Kabushiki Kaisha
- Applicants: Sharp Kabushiki Kaisha
- Inventors: RENMAO LIU; FANGYING XIAO
- Web page: https://patentgrep.com/patent/US20180324017A1

## CPC

- H04L 27/2602: {Signal structure}
- 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}
- H04L 27/2605: {Symbol extensions, e.g. Zero Tail, Unique Word [UW]}
- H04W 48/10: using broadcasted information
- H04L 5/0007: {the frequencies being orthogonal, e.g. OFDM(A) or DMT}
- H04W 4/70: Services for machine-to-machine communication [M2M] or machine type communication [MTC]
- H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)

## Abstract

The present invention provides a method for transmitting a downlink signal, which is suitable for narrow-band systems such as NB-IOT, eMTC and MMTC, a base station for executing the method, and a user equipment. The method comprises: receiving a master information block; parsing a field in the received master information block, the field being used to indicate a starting OFDM symbol for downlink reception; and receiving a downlink signal according to the parsed starting OFDM symbol.

## Claims

### Claim at position 1

-16. (canceled)

### Claim 17

A user equipment (UE) comprising:
determination circuitry configured to determine a parameter for receiving downlink control channel, based on operation mode information; and
reception circuitry configured to receive the downlink control channel, wherein
the operation mode information is included in a Master Information Block (MIB), and
the parameter indicates a starting OFDM symbol for the downlink control channel in a first slot in a subframe.

### Claim 18 (depends on 17)

The UE of claim 17, wherein the operation mode information indicates in-band operation, guard-band operation or stand-alone operation.

### Claim 19

A method performed by a user equipment (UE) comprising:
determining a parameter for receiving downlink control channel, based on operation mode information; and
receiving the downlink control channel in accordance with the parameter, wherein
the operation mode information is included in a Master Information Block (MIB), and
the parameter indicates a starting OFDM symbol for the downlink control channel in a first slot in a subframe.

### Claim 20

A base station comprising:
generation circuitry configured to generate operation mode information which causes a user equipment (UE) to determine a parameter for receiving downlink control channel, wherein the parameter indicates a starting OFDM symbol for the downlink control channel in a first slot in a subframe;
transmission circuitry configured to transmit the operation mode information in a Master Information Block (MIB); wherein
the transmission circuitry is configured to transmit the downlink control channel in accordance with the starting OFDM symbol.

### Claim 21 (depends on 20)

The base station of claim 20, wherein the operation mode information indicates in-band operation, guard-band operation or stand-alone operation.

### Claim 22

A method performed by a base station comprising:
generating operation mode information which causes a user equipment (UE) to determine a parameter for receiving downlink control channel, wherein the parameter indicates a starting OFDM symbol for the downlink control channel in a first slot in a subframe;
transmitting the operation mode information in a Master Information Block (MIB); and
transmitting the downlink control channel in accordance with the starting OFDM symbol.