US Patent No. 10,798,711

MOBILE COMMUNICATION EQUIPMENT AND METHOD FOR ALLOCATING SYSTEM INFORMATION AMONG VIRTUAL CARRIERS FOR MACHINE-TYPE COMMUNICATIONS


Patent No. 10,798,711
Issue Date October 06, 2020
Title Mobile Communication Equipment And Method For Allocating System Information Among Virtual Carriers For Machine-type Communications
Inventorship Matthew Webb, London (GB)
Dimitris Koulakiotis, Limmassol (CY)
Hideji Wakabayashi, Berkshire (GB)
Yuichi Morioka, Berkshire (GB)
Stephen Truelove, Cumbria (GB)
Assignee Sony Corporation, Tokyo (JP)

Claim of US Patent No. 10,798,711

1. An infrastructure equipment for forming part of a mobile communications network, the infrastructure equipment comprising:a transmitter configured to transmit signals to communications devices via a wireless access interface,
a receiver configured to receive signals transmitted from communications devices via the wireless access interface, and circuitry configured to control the transmitter and the receiver to form the wireless access interface providing a plurality of communications resource elements across a host frequency range, and providing a first section of the communications resources within a first frequency range for preferable allocation to reduced capability devices forming a first virtual carrier and a second section of the communications resources within a second frequency range for preferable allocation to the reduced capability devices forming a second virtual carrier, each of the first frequency range and the second frequency range being within the host frequency range, wherein
the wireless access interface includes a plurality of time divided sub-frames,
at least one of the sub-frames includes a control channel in a part of the sub-frame,
the circuitry is configured in combination with the transmitter to transmit first signalling data on the first virtual carrier and the second virtual carrier to reduced capability devices, the reduced capability devices having a capability to receive the signals only within a frequency bandwidth which is less than the host frequency range and equal to at least one of the first frequency range and the second frequency range, and the first signalling data transmitted on the first virtual carrier and the second virtual carrier identifies a location of one or more of the communications resources from which the reduced capability devices can receive common system information, the common system information providing information which is common to the reduced capability devices receiving signals from the first virtual carrier and the second virtual carrier and is valid for use by the reduced capability devices beyond the sub-frame, and
the control channel is used for communicating the first signalling data identifying the location of the common system information and is formed from the communications resources of a control region of the first frequency range of the first virtual carrier and the second frequency range of the second virtual carrier, and the circuitry is configured in combination with the transmitter to transmit the first signalling data from within the control region of the first virtual carrier and the second virtual carrier.