Abstract:
Provided is a communication control apparatus including: a selection unit that uses information related to one or more terminal apparatuses operable as an access point for a small cell to select a protection target cell to be protected from interference caused by a new small cell newly configured, among one or more existing cells; and a control unit that gives an instruction of an operation of the new small cell to the at least one terminal apparatus existing at a position determined in a manner that interference to each of the protection target cells selected by the selection unit does not exceed an allowable level.
Abstract:
To adaptively interleave in accordance with communication channel conditions. Provided is a base station performing radio communication with a terminal apparatus on a communication channel formed by integrating a plurality of component carriers, including a quality acquisition unit that acquires channel quality of the communication channel for each of the component carriers and an interleaver that interleaves data signals transmitted on the communication channel in accordance with at least one of the channel quality acquired by the quality acquisition unit and available situations of communication resources for each of the component carriers.
Abstract:
Provided is a communication system including a plurality of base stations, a plurality of communication terminals that communicates with one of the plurality of base stations, and a relay device, the relay device including a selection unit that selects a communication terminal to be relayed from among the plurality of communication terminals on the basis of communication quality information received from each of the plurality of communication terminals, and a relay unit that relays communication between the communication terminal selected by the selection unit and the corresponding base station.
Abstract:
[Object] To realize a mechanism for protecting a terminal connected to a small cell against harmful interference when idea of full-duplex radio communication is applied to a radio backhaul link and an access link of the small cell.[Solution] Provided is a communication control apparatus including: a control unit configured to, when transmission from a base station to a master terminal on a radio backhaul link and transmission from the master terminal to a radio communication apparatus on an access link are executed on the same channel at the same time, control transmission power of the base station and transmission power of the master terminal so that the radio communication apparatus is able to cancel a second received signal due to transmission on the radio backhaul link, the second received signal interfering with a first received signal on the access link, using an interference cancellation technique based on a received power difference.
Abstract:
A mobile station in a wireless communication network. The mobile station includes a radio communication that transmits an access request message to a base station via a first communication resource, and receives a timing adjustment in response to the access request message from the base station. The mobile station also includes an adjustment value storage unit that stores the timing adjustment, and a control unit that adjusts access timing corresponding to a second communication resource based on the timing adjustment value stored in the adjustment value storage unit. The radio communication unit then communicates with the base station via the first communication resource and the second communication resource.
Abstract:
[Object] To enable the wireless communication that is being performed already to be continued in the secondary system.[Solution] Provided is a communication control device including: a recognizing unit configured to recognize a handover of a wireless communication device, the handover enabling the wireless communication device to communicate wirelessly through a frequency channel for a primary system in a secondary system that secondarily utilizes the frequency channel; and a control unit configured to control the handover of the wireless communication device.
Abstract:
There is provided a communication device comprising: a detection unit that detects presence or absence of communication connection with a server storing data related to a communication environment of a communication area where a first communication service is provided; a data acquisition unit that acquires data related to a surrounding communication environment; and a determination unit that determines availability of usage of a second communication service using a part or whole of a spectrum assigned to the first communication service based on the data acquired by the data acquisition unit, wherein when communication connection with the server is not detected by the detection unit, the data acquisition unit senses a communication environment surrounding the communication device or receives data related to a communication environment from another communication device located near the communication device.
Abstract:
[Object] To adaptively adjust a symbol interval in accordance with a communication environment. [Solution] An apparatus including: a communication unit configured to perform radio communication; and a control unit configured to perform control such that control information for adjusting a symbol interval in a complex symbol sequence into which a bit sequence is converted is transmitted from the communication unit to a terminal, the control information being set on a basis of a predetermined condition.
Abstract:
[Object] To be able to perform management involved with wireless communication without routing via a base station. [Solution] Provided is an apparatus including: a generation unit configured to generate information related to data wirelessly transmitted or received without being routed via a base station; and a control unit configured to control transmission of the information to a node which is not involved in the transmission or reception of the data.
Abstract:
Provided is a method for performing a handover from a first base station to a second base station by a user equipment that is performing a radio communication over a communication channel formed by aggregating a plurality of component carriers. The method includes a step of transmitting a handover command for a component carrier for which a handover has been approved by the second base station among the plurality of component carriers from the first base station to the user equipment and a step of trying to make an access from the user equipment to the second base station for each component carrier in response to the handover command.