US Patent No. 10,117,238

MOBILE COMMUNICATIONS SYSTEM, NETWORK ELEMENT AND METHOD FOR RESOURCE ALLOCATION ON A VIRTUAL CARRIER FOR MACHINE-TYPE COMMUNICATIONS WITH A NARROW BAND EPDCCH


Patent No. 10,117,238
Issue Date October 30, 2018
Title Mobile Communications System, Network Element And Method For Resource Allocation On A Virtual Carrier For Machine-type Communications With A Narrow Band Epdcch
Inventorship Yuichi Morioka, Reading (GB)
Assignee SONY CORPORATION, Tokyo (JP)

Claim of US Patent No. 10,117,238

1. A base station for transmitting data to and/or receiving data from mobile communications devices, the base station comprising:a transmitter and a receiver configured to provide a wireless access interface for communicating data to and/or from the mobile communications devices, the wireless access interface providing on a downlink first carrier, the first carrier providing a plurality of communications resource elements across a first frequency range for communicating data and providing plurality of communications resource elements within a second frequency range which is within and smaller than the first frequency range forming a second carrier,
wherein the wireless access interface provided by the base stations includes
a plurality of time divided sub-frames, each sub-frame including the plurality of communications resource elements of the first frequency range and the plurality of the communications resource elements of the second frequency range, and each sub-frame includes
a first wideband control channel in a part of each sub-frame having a bandwidth corresponding substantially to the first frequency range, and
a second narrow band control channel in a second part of each sub-frame and having a bandwidth which is less than the first wideband control channel.