Abstract: A mobile telecommunications system including mobile terminals of first type and second type configured to transmit uplink data to a network over a radio interface using plural sub-carriers. The mobile terminals of first type configured to transmit uplink data on a first group of the sub-carriers over a first bandwidth and the mobile terminals of second type configured to transmit uplink data on a second group of the sub-carriers within the first group of sub-carrier over a second bandwidth smaller than the first bandwidth. The mobile terminals of first type transmit random access request messages to a base station of the network requesting uplink radio resources on a first random access channel. The mobile terminals of second type transmit random access request messages to the base station of the network requesting uplink radio resources on a second random access channel on sub-carriers within the second sub-carrier group.

Abstract: A method communicating data between a base station and a terminal device in a wireless telecommunications system, for example an LTE-based system. The wireless communication system uses plural frequency sub-carriers spanning a system frequency band. Physical-layer control information for the terminal device is transmitted from the base station using sub-carriers selected from across the system frequency band, for example to provide frequency diversity. However, higher-layer data for the terminal device is transmitted using only sub-carriers selected from within a restricted frequency band which is smaller than and within the system frequency band. The terminal device is aware of the restricted frequency band, and as such need only buffer and process data within this restricted frequency band during periods where higher-layer data is being transmitted. The terminal device buffers and processes the full system frequency band during periods when physical-layer control information is being transmitted.

Abstract: A network element for use in a mobile communications system and a method of using a network element for communicating data to/from mobile communications devices in a mobile communications system. The network element can provide a wireless access interface for communicating data to/from the mobile communications devices, the wireless access interface including: on a downlink a host carrier, the host carrier providing plural resource elements across a first frequency range; transmit data for a first group of mobile communications devices, wherein the data is distributed within the plural resource elements across the first frequency range; a virtual carrier via the wireless access interface, the virtual carrier providing one or more resource elements within a second frequency range which is within and smaller than the first frequency range; and transmit data for a second group of mobile communications devices via the virtual carrier.

Abstract: A mobile telecommunications system including mobile terminals of first type and second type configured to transmit uplink data to a network over a radio interface using plural sub-carriers. The mobile terminals of first type configured to transmit uplink data on a first group of the sub-carriers over a first bandwidth and the mobile terminals of second type configured to transmit uplink data on a second group of the sub-carriers within the first group of sub-carrier over a second bandwidth smaller than the first bandwidth. The mobile terminals of first type transmit random access request messages to a base station of the network requesting uplink radio resources on a first random access channel. The mobile terminals of second type transmit random access request messages to the base station of the network requesting uplink radio resources on a second random access channel on sub-carriers within the second sub-carrier group.

Abstract: A method communicating data between a base station and a terminal device in a wireless telecommunications system, for example an LTE-based system. The wireless communication system uses plural frequency sub-carriers spanning a system frequency band. Physical-layer control information for the terminal device is transmitted from the base station using sub-carriers selected from across the system frequency band, for example to provide frequency diversity. However, higher-layer data for the terminal device is transmitted using only sub-carriers selected from within a restricted frequency band which is smaller than and within the system frequency band. The terminal device is aware of the restricted frequency band, and as such need only buffer and process data within this restricted frequency band during periods where higher-layer data is being transmitted. The terminal device buffers and processes the full system frequency band during periods when physical-layer control information is being transmitted.

Abstract: A network element for use in a mobile communications system and a method of using a network element for communicating data to/from mobile communications devices in a mobile communications system. The network element can provide a wireless access interface for communicating data to/from the mobile communications devices, the wireless access interface including: on a downlink a host carrier, the host carrier providing plural resource elements across a first frequency range; transmit data for a first group of mobile communications devices, wherein the data is distributed within the plural resource elements across the first frequency range; a virtual carrier via the wireless access interface, the virtual carrier providing one or more resource elements within a second frequency range which is within and smaller than the first frequency range; and transmit data for a second group of mobile communications devices via the virtual carrier.

Abstract: A base station communicating data to/from plural mobile terminals over plural OFDM sub-carriers within a coverage area. The base station allocates transmission resources provided by a first group of the plural OFDM sub-carriers within a first frequency band to mobile terminals of a first type and allocates transmission resources provided by a second group of the plural OFDM sub-carriers within a second frequency band to terminals of a second type, the second group being smaller than the first group and the second frequency band selected from within the first frequency band. The base station transmits control information including resource allocation information for terminals of the first type over a first bandwidth corresponding to the combined first and second groups of OFDM sub-carriers and transmits control information including resource allocation information for terminals of the second type over a second bandwidth corresponding to the second group of OFDM sub-carriers.

Abstract: A base station receiving uplink data transmitted from mobile terminals of first type and mobile terminals of second type over a radio interface using plural sub-carriers. The mobile terminals of first type transmit uplink data on a first group of the sub-carriers over a first bandwidth and the mobile terminals of second type transmit uplink data on a second group of the sub-carriers within the first group of sub-carriers over a second bandwidth that is smaller than the first bandwidth. The base station is configured to grant uplink radio resources in response to random access request messages transmitted by mobile terminals of first type transmitted on a first random access channel and to grant uplink radio resources in response to random access request messages transmitted by mobile terminals of second type transmitted on a second random access channel, which are transmitted on sub-carriers within the second group of sub-carriers.

Abstract: A method operating a wireless communication system including a radio interface having limited radio resources. The method includes: arranging for one or more communication devices of first type to communicate data to/from a first type source via the radio interface; arranging for one or more communication devices of second type to communicate data to/from a second type source via the radio interface; restricting use of the radio resources by the one or more communication devices of second type during a specified data transmission period by allocating more of the radio resources to the first type of communication devices than the communication devices of second type; and restricting use of the radio resources by the one or more communication devices of first type outside the specified data transmission period by allocating more of the radio resources to the second type of communication devices than the communication devices of first type.

Abstract: A communications terminal communicates data to/from a mobile communications network. The mobile communications network includes a radio network including one or more base stations configured to provide a low bandwidth communications interface formed from a low bandwidth carrier for communicating the data to or receiving the data from the communications terminal in accordance with a relatively low bandwidth, and to provide a high bandwidth communications interface formed from a high bandwidth carrier for communicating the data to or receiving the data from the communications terminal in accordance with a relatively high bandwidth. The communications terminal is configured to attach for communication to the high bandwidth interface, and in response to receiving a command from the mobile communications network, to detach from the high bandwidth interface and to re-attach to the low bandwidth interface for communicating the data to or from the mobile communications network via the low bandwidth interface.

Abstract: The present disclosure provides a mobile communications system and method for communicating data to and/or from mobile communications devices. The method includes receiving, by a mobile terminal, a signal on a downlink, detecting a reduced bandwidth carrier on the downlink, and receiving downlink communications via the reduced bandwidth carrier, wherein the reduced bandwidth carrier is configured to provide a first set of resource elements within first frequency resources that are within and smaller than second frequency resources that are used by a host carrier to provide a second set of resource elements, wherein the reduced bandwidth carrier is provided in the first frequency resources in a first sub-frame, wherein the reduced bandwidth carrier is provided in third frequency resources in a second sub-frame after the first sub-frame, and wherein the third frequency resources are within and smaller than the first frequency resources.

Abstract: A base station communicating data to/from plural mobile terminals over plural OFDM sub-carriers within a coverage area. The base station allocates transmission resources provided by a first group of the plural OFDM sub-carriers within a first frequency band to mobile terminals of a first type and allocates transmission resources provided by a second group of the plural OFDM sub-carriers within a second frequency band to terminals of a second type, the second group being smaller than the first group and the second frequency band selected from within the first frequency band. The base station transmits control information including resource allocation information for terminals of the first type over a first bandwidth corresponding to the combined first and second groups of OFDM sub-carriers and transmits control information including resource allocation information for terminals of the second type over a second bandwidth corresponding to the second group of OFDM sub-carriers.

Abstract: A method communicating data between a base station and a terminal device in a wireless telecommunications system, for example an LTE-based system. The wireless communication system uses plural frequency sub-carriers spanning a system frequency band. Physical-layer control information for the terminal device is transmitted from the base station using sub-carriers selected from across the system frequency band, for example to provide frequency diversity. However, higher-layer data for the terminal device is transmitted using only sub-carriers selected from within a restricted frequency band which is smaller than and within the system frequency band. The terminal device is aware of the restricted frequency band, and as such need only buffer and process data within this restricted frequency band during periods where higher-layer data is being transmitted. The terminal device buffers and processes the full system frequency band during periods when physical-layer control information is being transmitted.

Abstract: A method communicating data between a base station and a terminal device in a wireless telecommunications system, for example an LTE-based system. The wireless communication system uses plural frequency sub-carriers spanning a system frequency band. Physical-layer control information for the terminal device is transmitted from the base station using sub-carriers selected from across the system frequency band, for example to provide frequency diversity. However, higher-layer data for the terminal device is transmitted using only sub-carriers selected from within a restricted frequency band which is smaller than and within the system frequency band. The terminal device is aware of the restricted frequency band, and as such need only buffer and process data within this restricted frequency band during periods where higher-layer data is being transmitted. The terminal device buffers and processes the full system frequency band during periods when physical-layer control information is being transmitted.

Abstract: A mobile communications unit for communicating data to and/or from base stations, the unit being arranged to communicate data with one or more base stations via a wireless access interface provided by the one or more base stations; arranged to receive transmissions from the one or more base stations via at least one carrier, wherein carriers are logically separate sets of physical resources within a frequency range, the resources of a carrier providing a communication channel; and arranged, upon reception of allocation information comprising an indication of the location of common information within a first carrier, to access the common information in the first carrier, wherein the allocation information is provided in a second carrier and the common information is for at least one mobile unit using the first carrier and for at least one mobile unit using a second carrier.

Abstract: The present disclosure provides a mobile communications system and method for communicating data to and/or from mobile communications devices. The method includes receiving, by a mobile terminal, a signal on a downlink, detecting a reduced bandwidth carrier on the downlink, and receiving downlink communications via the reduced bandwidth carrier, wherein the reduced bandwidth carrier is configured to provide a first set of resource elements within first frequency resources that are within and smaller than second frequency resources that are used by a host carrier to provide a second set of resource elements, wherein the reduced bandwidth carrier is provided in the first frequency resources in a first sub-frame, wherein the reduced bandwidth carrier is provided in third frequency resources in a second sub-frame after the first sub-frame, and wherein the third frequency resources are within and smaller than the first frequency resources.

Abstract: A user terminal configured to perform communication with an infrastructure equipment of a mobile communications network. The user terminal including a receiver configured to receive signals transmitted by the infrastructure equipment in accordance with a wireless access interface and a transmitter configured to transit signals to the infrastructure equipment in accordance with the wireless access interface. The user terminal is configured to receive an indication on a downlink of the wireless access interface of one of a plurality of different subcarrier spacing which the communications device should use to transmit or to receive the signals representing the data.

Abstract: A mobile communications terminal for communicating data to/from one or more base stations of a mobile communications network, the one or more base stations being arranged to provide a radio interface to communicate with mobile communications terminals. The mobile communications terminal being arranged to communicate with the one or more base stations via the radio interface, the communicating including using an uplink random access channel of the radio interface to transmit random access messages to the one or more base stations and communicating user data via the uplink random access channel by transmitting one or more of the random access messages at a selected timing within the uplink random access channel, the timing being selected by the first mobile communications terminal to represent at least part of the user data.

Abstract: A wireless communications system includes a base station, a relay device, and a terminal device. The terminal device can transmit one or more first type access request messages to request uplink resources from the base station, and if no response to the first type access request messages is received from the base station, can transmit a second type access request message. The base station is responsive to a first type access request message received from the terminal device to transmit an allocation of uplink resources to the terminal device. The relay device is responsive to a second type access request message received from the terminal device to transmit a relayed access request message to request the base station to allocate uplink resources to the terminal device. The base station is responsive to the relayed access request message to transmit an allocation of uplink resources to the terminal device.

Abstract: An infrastructure equipment for forming part of a mobile radio network includes a transmit and receive unit, to transmit and receive data to and from mobile communications devices via a wireless access interface, and a controller processing requests for communications resources from the mobile communications devices. Plural associated communications devices are arranged to form a group, and each of the associated communications devices of the group includes a same common identifier, with respect to which communications sessions can be established to communicate data via the mobile radio network, and the controller is arranged in combination with the transmit and receive unit to respond to a request from one of the communications devices of the group to establish a communications bearer using the common identifier.