Ntt Docomo, Inc.

Ntt Mobile Communications Network, Inc.

Nit Docomo, Inc.

Minami Ishii

Takehiro Nakamura

Mikio Iwamura

Anil Umesh

Sung Uk Moon

Wuri Andarmawanti Hapsari

Sadayuki Abeta

Atsushi Harada

Hideaki Takahashi

Masafumi Usuda

Yasuhiro Kato

Seizo Onoe

Alf Zugenmaier

Akihito Hanaki

Takeshi Okamoto

Shinji Uebayashi

Masayuki Motegi

Takuya Sato

Mayu Yamada

Mutsumi Ishimoto

Takashi Suzuki

Kenichiro Aoyagi

Keisuke Suzuki

Yoshihiro Ishikawa

Katsutoshi Nishida

Masashi Kanauchi

Etsuhiro Nakano

Yoshifumi Morihiro

Masafumi Hata

Akimichi Tanabe

Tadashi Uchiyama

Hiroto Tooyama

Shinji Ueda

Mamoru Sawahashi

Hiroyuki Ishii

Kenichi Higuchi

Lan Chen

Motohiro Tanno

Lei Du

Itsuma Tanaka

Hiroyuki Hosono

Yoshiaki Ofuji

Kazunori Obata

Kazuyuki Kozu

Katsuhiro Noguchi

Shogo Yabuki

Kota Fujimura

Seigo Harano

Ryo Kitahara

Yoshimasa Imamura

Zhen Miao

Julien Laganier

Seiz0 Onoe

A mobile communication method according to the present invention includes the steps: transmitting, from an exchange (MME) to a first radio base station (eNB), a location information reporting instruction which provides an instruction to report location information on a mobile station (UE); reporting, the first radio base station (eNB) to the exchange (MME), the location information on the mobile station (UE), in accordance with the location information reporting instruction; transmitting, the location information reporting instruction to a second radio base station (eNB), in a handover procedure of the mobile station (UE) from the first radio base station (eNB) to the second radio base station (eNB); and reporting, from the second radio base station (eNB) to the exchange (MME), the location information on the mobile station (UE), in accordance with the location information reporting instruction.

Mobile communication method and radio base station

A mobile communication method involving performing, at a mobile station UE which establishes a first connection in a first cell, a cell selection process at the time of detecting a failure in the first connection, transmitting, from the mobile station UE to a second cell selected in the cell selection process, a connection re-establishment request signal, determining, at a radio base station that manages the second cell, whether or not to store context information of the mobile station UE in response to the connection re-establishment request signal, acquiring, at the radio base station, the context information of the mobile station UE from a radio base station that manages the first cell, when determining that the context information of the mobile station UE is not stored, and establishing a second connection in the second cell for the mobile station UE, based on the context information of the mobile station UE.

When a network is requiring access barring, a mobile device determines whether a reference value broadcasted to the mobile device indicates a value determining that an access is denied regardless of a numerical value generated by the mobile device, or indicates a value having a possibility that an access of a certain mobile device is denied while an access of another mobile device is allowed. In the latter case, the mobile device determines appropriateness of an access by performing predetermined processing using the reference value as a value to be checked for a relationship with a numerical value generated by the mobile device when the mobile device does not have a special type access class, and uses a value enabling allowance of an access without performing the predetermined processing as a value for determining appropriateness of an access when the mobile device has the special type access class.

Method of barring network access, mobile device and processor

A mobile communication method according to the present invention includes: notifying, from a network node () to a mobile station (), a communication service provided by a target radio access technology in which the mobile station () is to be in idle mode; storing, at the mobile station (), the communication service notified by the network node (); and starting, at the mobile station (), a connection procedure on the basis of the stored communication service.

Mobile communication method, mobile exchange station, radio base station and mobile station

A mobile communication system is provided that performs bi-directional communications between a mobile station and a wireless access network device. The mobile station includes a connection set-up signal reception timing calculation unit for calculating a reception timing of a connection set-up signal when a connection request signal is transmitted, and a connection set-up signal reception determination unit that determines, according to the reception timing, whether the connection set-up signal is received, and performs a signal reception operation based on the determination. The wireless access network device includes a connection set-up signal scheduling unit that, after receiving a connection request signal from the mobile station, performs a connection set-up signal transmission assignment based on a reception timing of the connection request signal, a connection set-up signal generation unit that generates a connection set-up signal to be sent to the mobile station; and a connection set-up signal transmission unit that transmits the connection set-up signal based on the connection set-up signal transmission assignment.

Mobile station, wireless access network device, mobile communication system, and communication method

When a network is in a state of requiring any sort of access barring, determining whether a special type access class is included as an access class to which an own device belongs, determining appropriateness of an access by referring to, from barring information, a first barring information for designating whether a mobile device belonging to each access class is subject to access barring when having determined that the special type access class is included, and determining the appropriateness of an access by referring to, from the barring information, second barring information indicating a value serving as a reference for determining the appropriateness of an access according to a relationship between a numerical value generated by each mobile device and the reference indicated by the second barring information when having determined that the special type access class is included.

Method of barring access to network, mobile device for the method, and processor used in mobile device

A mobile communication method according to the present invention includes: a step of a mobile switching center MME managing access information that defines accessible CSG-ID of a mobile station UE; a step of the mobile switching center MME accommodating a combination of eNB-IDs and CSG-IDs of a radio base station HeNBfrom a gateway device HeNB-GW; and a step of the mobile switching center MME determining whether the mobile station UE is accessible to the radio base station HeNBbased on identification information of the mobile station UE and eNB-ID of the radio base station HeNBincluded in 'HO Required' received from the radio base station eNB, which are included in the handover request signal, with reference to the access information and the combination.

Mobile communication method

A mobile communication method according to the present invention comprising a step A in which, when a predetermined trigger is detected, the radio base station DeNB notifies the relay node RN of a transmission timing of an MBSFN subframe by a signal for changing the configuration of an RRC connection that is set between the radio base station DeNB and the relay node RN, a step B in which the radio base station DeNB performs scheduling such that a downlink signal is transmitted to the relay node RN at the transmission timing of the MBSFN subframe, and a step C in which the relay node RN performs scheduling such that a downlink signal is transmitted at a timing other than the transmission timing of the MBSFN subframe.

Mobile communication method, radio base station, and relay node

A radio base station that includes an upper-layer information transmission unit configured to transmit a length of Cyclic Prefix (CP) used in neighboring cells and a Positioning Reference Signal (PRS) transmission unit configured to transmit the PRS generated based on the length of CP, in a subordinate cell included in the neighboring cells.

Radio base station, mobile station, mobile communcation method for improving positioning reference signal reception processing time in the mobile station

When a network is in a state of requiring some sort of access barring, a reference value notified to a mobile device is determined to indicate a value in which an access of a certain mobile device is denied while an access of another mobile device is allowed. When an own device has a special type access class, it is determined that an access is allowed The appropriateness of an access is determined according to designation from the network when the own device has the special type access class, and when the own device does not have the special type access class, it is determined that an access is denied.

Method of barring network access in mobile device, mobile device, and processor used in mobile device

A base station includes a radio communication unit () configured to wirelessly communicate with a mobile apparatus capable of communicating in both a first mobile communication system and a second mobile communication system and a network communication unit () configured to communicate with a switching station in the first mobile communication system, and if a line setup instruction signal (Initial Context Setup Request) received at the network communication unit from the switching station is not due to initial access to the switching station by the mobile apparatus, the radio communication unit receives mobile apparatus capability information in the second mobile communication system (UE-UTRA-Capability) from the mobile apparatus after transmitting a line setup response signal (Initial Context Setup Response) to the switching station.

Base station and method to acquire capability of mobile apparatus in mobile communication system

To provide a communication control system and a communication control method, in which call connection delay can be reduced even in a case where a resource capable of continuing an established communication bearer in a radio communication system in a transition destination cannot be captured when a mobile station transitions to another radio communication system. An eNBincludes a handover control unitconfigured to determine whether a handover of a PS bearer to a 3G systemis performed based on the priority of the PS bearer to the CS bearer when a connection destination of a mobile stationbeing in connection with an LTE systemusing the PS bearer is switched to the 3G system

Communication control system and communication control method

A radio base station includes a mobile communication system, a relay node and a radio base station connected via a radio bearer. A mobile station is configured to perform a handover process between a state in which a radio bearer is set with the relay node so as to communicate via the relay node and the radio base station, and a state in which a radio bearer is set with the radio base station so as to communicate via the radio base station. The handover process is configured such that a data signal is transferred via the radio bearer between the relay node and the radio base station.

Mobile communication system

A radio base station apparatus () according to the present invention includes: an uplink resource assignor unit () configured to assign an uplink resource to a mobile station () in response to a random access signal which the mobile station () transmits by use of a random access preamble; a random access response signal transmitter unit () configured to notify the mobile station () of the uplink resource by using a random access response signal; and an uplink scramble decoder unit () configured to perform descrambling processing on an uplink signal transmitted from the mobile station () by use of the uplink resource, by using an uplink scrambling sequence corresponding to the uplink resource.

Mobile communication method, radio base station apparatus and mobile station

A mobile communication method according to the present invention includes: a step in which a mobile station UE transmits 'Measurement Report' including identification information 'ECGI' on a cell subordinate to a radio base station eNB, to a radio base station HeNB; a step in which a radio base station HeNB transmits &#x201c;(X2) HO Request&#x201d; including the identification information &#x201c;ECGI&#x201d; of the cell subordinate to the radio base station eNB, to an IP address of a gateway device HeNB-GW; and a step in which the gateway device HeNB-GW transfers the &#x201c;(X2) HO Request&#x201d; to the IP address corresponding to the identification information &#x201c;ECGI&#x201d; on the cell subordinate to the radio base station eNB.

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Yokohama, Japan

Minami Ishii