Ntt Docomo, Inc.

Telefonaktiebolaget Lm Ericsson (publ)

Shin-Ichi Isobe

Katsutoshi Nishida

Takashi Koshimizu

Wuri Andarmawanti Hapsari

Itsuma Tanaka

Takashi Morita

Shinya Takeda

Tomoki Shibahara

Motohiro Abe

Ryohei Ohgushi

András Valkó

Csaba Keszei

Zoltán TURÁNYI

There is provided user equipment of a radio communication system including the user equipment, a base station, and a core network apparatus including a reception unit configured to receive information indicating one or more types of NAS protocols supported by the core network apparatus from the base station; a selection unit configured to select a type of a NAS protocol to be transmitted to the core network apparatus based on the information indicating the one or more types of the NAS protocols received by the reception unit; and a transmission unit configured to transmit a NAS message of the type of the NAS protocol selected by the selection unit to the core network apparatus.

User equipment, radio communication system, and communication method

When congestion is detected in an S-GW, communications are allowed to continue as many as possible. A mobile communication method according to the present invention includes: notifying, by the S-GW, a PDF in a PCRF of detection of congestion when the congest is detected; acquiring, by the PDF in the PCRF, charging system information regarding UEs using an S1 bearer and an S5 bearer set in the S-GW from an HSS; acquiring, by the PDF in the PCRF, communication service class information in a flow unit in the S1 bearer and the S5 bearer from the P-GW according to the notification; and performing, by the PDF in the PCRF, bandwidth adjustment on specific flows of the S1 bearer and the S5 bearer based on the charging system information and the communication service class information in the flow unit.

Mobile communication method, policy and charging rule server apparatus, and mobile management node

Provided are a billing system, a billing apparatus, and a billing method capable of billing for device-to-device direct communication (D2D communication) performed using a radio access network such as LIE. A terminalA sends a billing apparatusbilling-related information to be used to bill for direct communication. The billing apparatusacquires the billing-related information from the radio communication terminal and generates billing information on the direct communication based on the billing-related information acquired.

Billing system, billing apparatus, and billing method

A UE (A) includes an application control information holding unit () configured to hold application control information at least including identification information of an application () to be restricted or permitted to perform communications among the multiple applications (); a restriction instruction reception unit () configured to receive, via a radio base station, a communication restriction instruction to control communications of the application () to be restricted or permitted to perform communications among the multiple applications (); and a restriction instruction notification unit () configured to notify an upper layer, which is configured to implement communications with the application (), of reception of the communication restriction instruction based on the communication restriction instruction received by the restriction instruction reception unit ().

Mobile communication system, network apparatus, mobile station, and mobile communication method

Provided are a radio communication terminal, a communication control apparatus, and a communication control method capable of enhancing the possibility of providing a communication application through inter-terminal direct communication (D2D communication) even in a case where a call request cannot be accepted due to congestion on the network side. In a terminalA, a call restriction reception unitreceives a call restriction containing configuration information on a communication environment necessary for direct communication. During restriction of initiation of communication to the radio access network, a radio communication unitexecutes direct communication with another radio communication terminal based on the configuration information if a direct communication determination unitdetermines that a communication application is executable through direct communication.

Radio communication terminal, communication control apparatus, and communication control method

Provided are a communication system capable of causing a communication application to speedily find out whether D2D communication is possible or not. The phonebook serverincludes a phonebook data acquisition unitconfigured to acquire first phonebook data containing an identifier of a terminalB, a terminal location acquisition unitconfigured to acquire a location of the terminalB contained in the first phonebook data acquired by the phonebook data acquisition unit, a phonebook data generation unitconfigured to generate second phonebook data containing an identifier of a candidate terminal capable of direct communication, based on the location of the terminalB acquired by the terminal location acquisition unit, and a transmission unitconfigured to send a terminalA the second phonebook data generated by the phonebook data generation unit

Communication system, phonebook server, radio communication terminal, and communication method

Provided are a radio communication terminal capable of causing a communication application to speedily find out whether D2D communication is possible by using a radio access network such as LTE. A terminalA includes a terminal finding unitconfigured to find a candidate terminal capable of executing direct communication with the terminalA, a phonebook processing unitconfigured to obtain direct-communication phonebook data containing an identifier of the candidate terminal found by the terminal finding unit, based on regular phonebook data containing an identifier of another radio communication terminal and being associated with the terminalA, and a direct communication execution unitconfigured to execute direct communication with a counterpart terminal (e.g., a terminalB) indicated in a communication request from a communication applicationA,C, when the counterpart terminal is contained in the direct-communication phonebook data as the candidate terminal.

Radio communication terminal and communication method

Provided are a radio communication system, a communication control apparatus, and a communication control method allowing radio communication terminals to call each other in a case where device-to-device direct communication (D2D communication) is provided using a radio access network such as LTE. A terminalA sends a communication control apparatus a paging signal containing a direct communication request requesting for direct communication with a terminalB. The communication control apparatussends the terminalB a paging signal containing information indicating that the terminalA is requesting direct communication and configuration information on a communication environment necessary for direct communication.

Radio communication system, communication control apparatus, and communication control method

A private branch exchange system capable of enabling radio communication terminals belonging to an extension group to perform device-to-device direct communication (D2D communication) by using a radio access network such as LTE. A private branch exchange serverincludes a transition trigger detection unitconfigured to detect a trigger for a transition to the direct communication, an extension group list retention unitconfigured to retain an extension group list containing an identifier of the radio communication terminal belonging to the extension group, a subgroup selection unitconfigured to select a certain subgroup from the extension group list, and a direct communication command unitconfigured to send permission information on the direct communication and configuration information on a communication environment necessary for the direct communication to the radio communication terminal contained in the subgroup selected by the subgroup selection unit

Growing community of inventors

Tokyo, Japan

Shin-Ichi Isobe