A base station performs wireless communication with a terminal using a first frequency band which needs a license to use for wireless communication and a second frequency band which does not need the license to use for the wireless communication. The base station includes: a generator that generates a request signal for requesting data transmission of the terminal in the second frequency band and specifying a first transmission timing of the terminal; and a transmitter that transmits the request signal to the terminal, wherein the request signal includes information specifying a second transmission timing, which is a next transmission timing when the terminal does not perform data transmission at the first transmission timing and is specified by an offset from a reference timing.

The disclosure is related to a method and a system for selecting a communication interface. The method is applicable to a local area network including multiple access points. A main access point is first selected. The main access point acquires every access point's information within a local area network. The information relates to the access points that are in an idle state or not performing a critical task. A target antenna can be selected for performing a specific function. For example, the target antenna can be used to scan for the channels specified in dynamic frequency selection. After that, the scan result may result in changing channels. Through the above mechanism, the resources in every AP within the LAN can be adequately used, and the performance of wireless communication can be effectively improved.

A flock of drones provide a drone-assisted mesh network for first responders. Network modules attached to the drones interconnect with other network modules and provide network access points for first responder devices, allowing the first responder devices to communicate with each other via the drone-assisted mesh network. The drones may autonomously reposition themselves to create a desired network coverages area, including adjusting the network coverage area as instructed via a drone controller. The network modules may communicate with a gateway to an external network, allowing first responder devices to communicate with the external network via the drone-assisted mesh network. Network modules may be selected for field-attachment to the drones based on characteristics of the first responder devices.

An access node for a telecommunications network is partitioned into a front end unit and a back end unit coupled by an internet protocol (IP) packet based communication link to provide for data and control packets to be sent between the back end unit and the front end unit. The front end unit performs physical layer and media access layer (MAC) sublayer processing for data for transmission to/from user equipment in the network using baseband processing units that perform highly parallel floating/fixed point operations. The back end unit includes a plurality of general purpose processors to provide data link layer and network layer processing. back end portions may be pooled to provide greater efficiency.

An access node for a telecommunications network is partitioned into a front end unit and a back end unit coupled by an internet protocol (IP) packet based communication link to provide for data and control packets to be sent between the back end unit and the front end unit. The front end unit performs physical layer and media access layer (MAC) sublayer processing for data for transmission to/from user equipment in the network using baseband processing units that perform highly parallel floating/fixed point operations. The back end unit includes a plurality of general purpose processors to provide data link layer and network layer processing. back end portions may be pooled to provide greater efficiency.

A wireless communication recovery method and a corresponding communication device are described. In the wireless communication recovery method, a connection failure of a radio access technology (RAT) is detected. Further, the detected connection failure is categorized based on a network level at which the connection failure has occurred. The RAT at the corresponding network level is then disabled for a time period based on the categorization of the connection failure and service in the RAT is recovered based on thresholds for the categorized failure levels.

We disclose various embodiments of methods and apparatus for processing handovers of mobile terminals between base stations of a wireless communication system. An example handover algorithm used for this purpose enables the handover threshold to be increased for some mobile terminals, on a terminal-by-terminal basis, thereby individually expanding the range of the serving cell for each of such terminals. In an example embodiment, the handover-threshold determination is carried out based on physical-resource-block usage of the target cell. The extent of the cell-range expansion depends on whether or not the reference signals of the serving and target cells interfere with each other. Embodiments of the disclosed handover algorithm can advantageously reduce the number of failed handovers by allowing some communication sessions to run to completion before a handover is triggered.

A mobile communication system includes a control device and a base station device. Data communication between the control device and the base station device is conducted using a fixed-length data size and a variable-length data size. The control device transmits information indicating whether a data size of the data communication has a fixed length or a variable length. The base station device receives the information from the control device.

A communication system, in which a mobile terminal uses a data path that was generated with an ISP network by a base station in a home network to access a NW via the ISP network, includes an authentication means and connection control means in the ISP network. The base station accepts an access request from the mobile terminal and transmits information relating to the base station and the mobile terminal to the connection control means. The authentication means determines based on the information whether a linking service that connects to the home NW without traversing the ISP network can be provided to the mobile terminal, and if the linking service can be provided, notifies this information to the connection control means. Based on this notification, the connection control means requests the base station to generate a data path for providing the linking service, and the base station generates the data path.

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.