Abstract:
[Object] To be able to utilize radio resources more efficiently in the environment where a small cell is operated.[Solution] Provided is a communication control apparatus including: a communication unit configured to communicate with a radio communication apparatus being connected to a base station via a radio backhaul link and being connected to one or more terminals via an access link; and a control unit configured to, when a reception on the radio backhaul link and a transmission on the access link, or a reception on the access link and a transmission on the radio backhaul link are executed on an identical channel simultaneously in the radio communication apparatus, adjust a power ratio between a reception signal and a transmission signal in order to support the radio communication apparatus in removing self-interference due to a sneak of the transmission signal from the reception signal.
Abstract:
There is provided a communication control apparatus including a parameter acquisition unit that acquires parameters to calculate coverage of secondary systems from a secondary usage node operating the secondary systems on a frequency channel allocated to a primary system, a calculation unit that calculates the coverage of the secondary systems using the parameters acquired by the parameter acquisition unit, and an interference control unit that notifies a detection node that detects neighboring secondary systems of the secondary systems, of coverage information representing the coverage of the secondary systems calculated by the calculation unit.
Abstract:
[Object] To enable improving accuracy of decoding of a desired signal when multiplexing/multiple access is performed using power allocation.[Solution] Provided is an apparatus including: a first transmission processing unit that generates transmission signal sequences of multiple power layers that are to be multiplexed using power allocation; and a second transmission processing unit that processes a transmission signal sequence of a power layer using an interleaver, a scrambler, or a phase coefficient corresponding to the power layer for each of one or more of the multiple power layers.
Abstract:
A management server in a network including a first transmitting device that communicates with a first receiving device and a second transmitting device that communicates with a second receiving device. The management server includes a network interface that receives a parameter corresponding to a level of improvement of communication quality at the second receiving device, and a processor that calculates an allowable interference amount at the first receiving device based on the parameter.
Abstract:
A system that acquires at least position information, height information and first priority information corresponding to a first wireless communication system (20), and second priority information corresponding to a second wireless communication system (20); determines a use condition for a shared frequency band shared between the first (20) and second (30) wireless communication systems based on the position information, the height information, the first priority information and the second priority in formation; and outputs a notification based on the determined use condition.
Abstract:
There is provided a communication control device that controls wireless communication in compliance with a time division duplex (TDD) scheme, the communication control device including: a selection unit configured to select a link direction configuration for the wireless communication among a plurality of candidates for the link direction configuration which indicates a link direction in units of sub-frames of a radio frame which includes a plurality of sub-frames; and an application unit configured to apply the selected link direction configuration to the wireless communication. The plurality of candidates include at least one of a link direction configuration dedicated to a downlink and a link direction configuration dedicated to an uplink.
Abstract:
A wireless communication device, a wireless communication method, and a program capable of contributing to improvement of wireless communication technology related to IDMA. The wireless communication device includes: a wireless communication unit that performs wireless communication using interleave division multiple access (IDMA) with another wireless communication device; and a controller that controls an interleave length in an interleave process for IDMA by the wireless communication unit.
Abstract:
[Object] To enable management related to transmission and reception of data to be performed while reducing the load on the core network.[Solution] Provided is an apparatus including: an acquiring unit configured to acquire data destined for a second terminal device which is transmitted from a first terminal device to a base station of a cellular system; and a control unit configured to control transmission of the data in a manner that the data is transferred from the first terminal device to the second terminal device without going through a gateway configured to perform data transfer in the cellular system. The control unit controls transmission of information related to the data to the gateway or a specific node, and the specific node is a node configured to receive, from the gateway, information related to another data transferred via the gateway.
Abstract:
Random access operation is performed under a communication environment in which a plurality of communication modes having different transmission rate coexist with small overhead. A high-grade communication station spoofs information of a packet length and a rate in a decoding portion so that a value of (packet length)/(rate) corresponds to a duration where the communication is hoped to be stopped. The other station receiving the spoofed information receives the rest of the packet with the designated rate during the interval designated by the value of (packet length)/(rate). In this case, the packet length and the rate are not those of actually transmitted packet so that this packet is discarded.
Abstract:
[Object] Provided is a mechanism for enabling efficient signaling to control operation modes of small cells in an environment where a number of small cells are deployed.[Solution] Provided is a communication control apparatus including: a communication unit configured to communicate with each of communication nodes operating a plurality of small cells, each of which belongs to at least one of a plurality of small cell groups; a determining unit configured to determine whether operation modes of the plurality of small cells should be set to be an active mode in units of the small cell groups; and a signaling unit configured to signal a control message for specifying the operation modes in units of the small cell groups, determined by the determining unit to the communication nodes via the communication unit.