US 2019/0356421 A1 · COMMUNICATIONS SYSTEM, INFRASTRUCTURE EQUIPMENT AND METHOD

Abstract

A communications system including an infrastructure equipment, forming part of a mobile communications network, that transmits and receives data to/from a user device via a wireless access interface using a plurality of Orthogonal Frequency Division Multiplexing (OFDM) subcarriers that extend across a first bandwidth. The infrastructure equipment is configured to transmit repeatedly signals representing a same instance of user device payload data in a second bandwidth less than and within a first bandwidth, and includes a subset of the OFDM subcarriers. The user device is configured to receive one or more of the signals repeatedly transmitted across the second bandwidth, to store in a memory signals representing the repeatedly transmitted signals received across the second bandwidth and to combine the stored signals, and to detect the user device payload data from the combined signals, the user device having been provided with an indication of the second bandwidth.

Claims13

Dependent claims

A communications system comprising an infrastructure equipment for forming part of a mobile communications network arranged to transmit and receive data to and from a user device via a wireless access interface, the wireless access interface being provided by the infrastructure equipment using a plurality of Orthogonal Frequency Division Multiplexing (OFDM) subcarriers, the plurality of OFDM subcarriers extending across a first bandwidth, and the infrastructure equipment is configured

to transmit repeatedly signals representing a same instance of user device payload data in a second bandwidth, the second bandwidth being less than and within the first bandwidth and including a subset of the OFDM subcarriers,
and user device is configured
to receive one or more of the signals repeatedly transmitted across the second bandwidth,
to store in a memory signals representing the repeatedly transmitted signals received across the second bandwidth,
to combine the stored signals, and
to detect the user device payload data from the combined signals, the user device having been provided with an indication of the second bandwidth.

3 more elements

A method of transmitting and receiving data in a communications system comprising an infrastructure equipment for forming part of a mobile communications network arranged to transmit and to receive data to and from a user device via a wireless access interface, the wireless access interface being provided by the infrastructure equipment using a plurality of Orthogonal Frequency Division Multiplexing (OFDM) subcarriers, the plurality of OFDM subcarriers extending across a first bandwidth, and the method comprising

transmitting repeatedly signals representing a same instance of user payload data in a second bandwidth from the infrastructure equipment, the second bandwidth being less than and within the first bandwidth and including a subset of the OFDM subcarriers;
receiving one or more of the repeatedly transmitted signals across the second bandwidth at the user device,
storing in a memory signals representing the repeatedly transmitted signals received across the second bandwidth at the user device,
combining the stored signals at the user device, and
detecting the user device payload data from the combined signals at the user device, the user device having been provided with an indication of the second bandwidth.

2 more elements

Dependencies are inferred from the claim text.

Communications system, infrastructure equipment and method

Life of this patent

Communications system, infrastructure equipment and method

Life of this patent

Abstract

Claims13