-
公开(公告)号：US12035280B2
公开(公告)日：2024-07-09
申请号：US18304185
申请日：2023-04-20
Applicant: Mitsubishi Electric Corporation
Inventor： Masayuki Nakazawa , Mitsuru Mochizuki , Hideo Umehara , Kuniyuki Suzuki
Abstract: In a communication system, a plurality of base stations includes an MeNB being a first base station, and a plurality of SeNBs to be connected to the MeNB. At least one of control plane data about control of communication and user plane data about a user is transmitted to and received from a user equipment (UE) via the first base station being the MeNB. The control plane data and the user plane data are contained in information provided by a core network about communication with the UE. The communication system can simplify processing of at least one of control plane data and user plane data when a communication terminal device communicates with a plurality of base station devices.
-
公开(公告)号：US20220353770A1
公开(公告)日：2022-11-03
申请号：US17863533
申请日：2022-07-13
Applicant: Mitsubishi Electric Corporation
Inventor： Takuya OHARA , Taisei Suemitsu , Mitsuru Mochizuki , Kuniyuki Suzuki , Masayuki Nakazawa , Daisuke Hiramatsu
Abstract: When being connected to a macro cell (S-MeNB) and a small cell (SeNB), a user equipment device performs a pre-handover process of disconnecting the connection with the SeNB before a handover process of switching a macro cell connected with the UE from the macro cell (S-MeNB) that is a moving source to a macro cell (T-MeNB) that is a moving destination along with moving of the UE, and after the handover process, performs a post-handover process of reestablishing the connection with the SeNB.
-
公开(公告)号：US11190952B2
公开(公告)日：2021-11-30
申请号：US16640842
申请日：2018-08-23
Applicant: Mitsubishi Electric Corporation
Inventor： Kuniyuki Suzuki
Abstract: The present disclosure has an object to provide a specific communication technology for realizing effective communication with a flying object in a communication apparatus including the flying object. The communication apparatus includes a first base station, a flying object including a second base station, and a mobile terminal to communicate with the second base station. The first base station notifies flying object specification information that is information indicating that the second base station is included in the flying object. When the flying object specification information is received, the mobile terminal sets a direction of a beam for detecting the second base station to a second direction that is a direction vertically upward compared to a first direction that is the direction of the beam in a case where the flying object specification information is not received.
-
公开(公告)号：US10674514B2
公开(公告)日：2020-06-02
申请号：US15518536
申请日：2015-10-26
Applicant: Mitsubishi Electric Corporation
Inventor： Masayuki Nakazawa , Kuniyuki Suzuki , Mitsuru Mochizuki , Koji Ono , Takayuki Nonami , Naohito Tomoe , Fumiki Hasegawa
Abstract: A base station device is configured to set, for each communication terminal device, a radio format for signals transmitted to and received from the communication terminal device. The radio format is set for each communication terminal device in accordance with, for example, a type of use including a moving speed of the communication terminal device. The base station device may be configured to change the radio format for the communication terminal device based on the information about a change in the environment of a radio communication between the communication terminal device and the base station device and a change including the communication terminal device's location. The signals transmitted and received between the base station device and the communication terminal device include radio formats in which at least one of a length of a symbol of the signal and a length of a cyclic prefix in an OFDM scheme differs.
-
公开(公告)号：US11006427B2
公开(公告)日：2021-05-11
申请号：US16849287
申请日：2020-04-15
Applicant: Mitsubishi Electric Corporation
Inventor： Masayuki Nakazawa , Kuniyuki Suzuki , Mitsuru Mochizuki , Koji Ono , Takayuki Nonami , Naohito Tomoe , Fumiki Hasegawa
Abstract: A base station device is configured to set, for each communication terminal device, a radio format for signals transmitted to and received from the communication terminal device. The radio format is set for each communication terminal device in accordance with, for example, a type of use including a moving speed of the communication terminal device. The base station device may be configured to change the radio format for the communication terminal device based on the information about a change in the environment of a radio communication between the communication terminal device and the base station device and a change including the communication terminal device's location. The signals transmitted and received between the base station device and the communication terminal device include radio formats in which at least one of a length of a symbol of the signal and a length of a cyclic prefix in an OFDM scheme differs.
-
Patent Agency Ranking
公开(公告)号：US20200245318A1
公开(公告)日：2020-07-30
申请号：US16849287
申请日：2020-04-15
Applicant: Mitsubishi Electric Corporation
Inventor： Masayuki NAKAZAWA , Kuniyuki Suzuki , Mitsuru Mochizuki , Koji Ono , Takayuki Nonami , Naohito Tomoe , Fumiki Hasegawa
Abstract: A base station device is configured to set, for each communication terminal device, a radio format for signals transmitted to and received from the communication terminal device. The radio format is set for each communication terminal device in accordance with, for example, a type of use including a moving speed of the communication terminal device. The base station device may be configured to change the radio format for the communication terminal device based on the information about a change in the environment of a radio communication between the communication terminal device and the base station device and a change including the communication terminal device's location. The signals transmitted and received between the base station device and the communication terminal device include radio formats in which at least one of a length of a symbol of the signal and a length of a cyclic prefix in an OFDM scheme differs.
-
公开(公告)号：US10601526B2
公开(公告)日：2020-03-24
申请号：US16417752
申请日：2019-05-21
Applicant: Mitsubishi Electric Corporation
Inventor： Hideki Morishige , Masayuki Nakazawa , Mitsuru Mochizuki , Yoshitaka Hara , Kuniyuki Suzuki
Abstract: A signal is transmitted and received between a base station device and a communication terminal device that are included in a communication system, through a multi-element antenna including a plurality of antenna elements. At least one of the base station device and the communication terminal device includes a PHY processing unit that is a calibration unit that performs calibration of phases and amplitudes of beams formed by the antenna elements when the signal is transmitted and received. The PHY processing unit obtains a correction value for the phases and the amplitudes of the beams in the respective antenna elements so that the phases and the amplitudes of the beams are identical among the antenna elements, and performs the calibration based on the obtained correction value.
-
公开(公告)号：US20190289663A1
公开(公告)日：2019-09-19
申请号：US16432148
申请日：2019-06-05
Applicant: Mitsubishi Electric Corporation
Inventor： Mitsuru Mochizuki , Kuniyuki Suzuki , Masayuki Nakazawa , Noriyuki Fukui , Haruka Nozawa
Abstract: A narrow-bandwidth terminal device performs radio communication at a bandwidth narrower than a system bandwidth. The narrow-bandwidth terminal device in an idle state camps on a cell, and performs discontinuous reception of a signal transmitted from the cell. The terminal device also determines a reception condition of the signal, for example, whether the signal can be received. When it is determined that the signal cannot be received, the narrow-bandwidth terminal device moves out of a coverage area of the cell while continuing to perform the discontinuous reception. When it is determined that a discontinuous reception timer has been completed, the narrow-bandwidth terminal device continues to perform the discontinuous reception.
-
公开(公告)号：US11051155B2
公开(公告)日：2021-06-29
申请号：US16712283
申请日：2019-12-12
Applicant: Mitsubishi Electric Corporation
Inventor： Mitsuru Mochizuki , Kuniyuki Suzuki , Futoshi Katada , Hirochika Hiraki
Abstract: A communication system is provided that can improve the communication capability of a communication terminal device in the case where a large number of small cells in addition to a macro cell are installed and operated. A communication terminal device (UE) is connected with a macro cell configured by a MeNB and a small cell configured by a SeNB, so that dual connectivity is performed. When receiving information for small cells, for example, emergency information from a CBC via an MME, at least one cell of the macro cell and the small cell notifies the communication terminal device connected with the at least one cell of the information for small cells.
-
公开(公告)号：US10959283B2
公开(公告)日：2021-03-23
申请号：US16432148
申请日：2019-06-05
Applicant: Mitsubishi Electric Corporation
Inventor： Mitsuru Mochizuki , Kuniyuki Suzuki , Masayuki Nakazawa , Noriyuki Fukui , Haruka Nozawa
Abstract: A narrow-bandwidth terminal device performs radio communication at a bandwidth narrower than a system bandwidth. The narrow-bandwidth terminal device in an idle state camps on a cell, and performs discontinuous reception of a signal transmitted from the cell. The terminal device also determines a reception condition of the signal, for example, whether the signal can be received. When it is determined that the signal cannot be received, the narrow-bandwidth terminal device moves out of a coverage area of the cell while continuing to perform the discontinuous reception. When it is determined that a discontinuous reception timer has been completed, the narrow-bandwidth terminal device continues to perform the discontinuous reception.
-
-
-
-
-
-
-
-
-
Search Results
30
records
(took 0.02 seconds)
