US Patent No. 10,397,919

MOBILE COMMUNICATION DEVICE AND METHOD FOR ALLOCATING RESOURCES OUTSIDE OF A VIRTUAL CARRIER BASED ON UE CAPABILITIES


Patent No. 10,397,919
Issue Date August 27, 2019
Title Mobile Communication Device And Method For Allocating Resources Outside Of A Virtual Carrier Based On Ue Capabilities
Inventorship Yuichi Morioka, Reading (GB)
Matthew Webb, London (GB)
Hideji Wakabayashi, Reading (GB)
Dimitris Koulakiotis, Limassol (CY)
Stephen Truelove, Ambleside (GB)
Assignee SONY CORPORATION, Tokyo (JP)

Claim of US Patent No. 10,397,919

1. A communications device that communicates with a mobile communications network, the mobile communications network including one or more network elements providing a wireless access interface for the communications device, the communications device comprising:a transmitter configured to transmit unlink data to the mobile communications network via the wireless access interface;
a receiver configured to receive downlink data from the mobile communications network via the wireless access interface, wherein
the wireless access interface provides a plurality of communications resource elements across a host frequency bandwidth, and
the plurality of communications resource elements includes, within the host frequency bandwidth, a first section of communications resource elements forming a first virtual carrier containing a first frequency bandwidth, the first virtual carrier for allocation to reduced capability devices and including a physical downlink control channel (PDCCH) portion common to a plurality of reduced capability devices and a first physical downlink shared channel (PDSCH) portion allocated exclusively for use by another communications device, and the reduced capability devices each having a receiver bandwidth which is greater than the first frequency bandwidth but less than the host frequency bandwidth; and
processing circuitry configured to control the transmitter transmit, to the mobile communications network, a relative capability of the receiver to receive the downlink data via the wireless access interface, the relative capability including an indication of a relative bandwidth of the receiver to receive signals within the host frequency bandwidth, the relative bandwidth being greater than the first frequency bandwidth and smaller than the host frequency bandwidth, wherein
the receiver receives, from the mobile communications network in response to the indication an allocation of communications resource elements, the allocation of communications resource elements by the PDCCH of the first virtual carrier including communications resource elements which are outside the first frequency bandwidth and that form a second virtual carrier including a second PDSCH portion allocated exclusively for use by the communications device, but within the relative bandwidth of the receiver, and which encompass the first frequency bandwidth,
the first virtual carrier abuts the second virtual carrier in bandwidth, and
the second PDSCH portion of the second virtual carrier is larger in time within a subframe than the first PDSCH portion of the first virtual carrier.