专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US10003978B2 Mobile communication system, radio base station, radio mobile station and mobile communication method 有权
公开(公告)号：US10003978B2
公开(公告)日：2018-06-19
申请号：US15102883
申请日：2014-12-10
申请人： NTT DOCOMO, INC.
发明人： Yoshifumi Morihiro , Satoshi Suyama , Jiyun Shen , Yukihiko Okumura
IPC分类号： H04W16/24 , H04W36/00 , H04W72/04 , H04W84/00
CPC分类号： H04W16/24 , H04W36/00 , H04W36/0009 , H04W72/0406 , H04W84/005
摘要： A mobile communication system that includes a first communication system, which features a user terminal that is present in a moving object, a first radio base station that forms a cell in the moving object, and a first core network that is connected with an external network, and a second communication system, which features a radio mobile station that is provided in the moving object, a second radio base station that forms a cell on the path of the movement of the moving object, and a second core network that is connected with the second radio base station. The first radio base station and the radio mobile station are connected via a user-plane interface and a control-plane interface between the radio base stations and the core networks.

2. 发明申请

US20170094528A1 USER TERMINAL, RADIO BASE STATION, RADIO COMMUNICATION METHOD AND RADIO COMMUNICATION SYSTEM 审中-公开
公开(公告)号：US20170094528A1
公开(公告)日：2017-03-30
申请号：US15311107
申请日：2015-05-13
申请人： NTT DOCOMO, INC.
发明人： Kazuaki Takeda , Yoshifumi Morihiro , Hiroki Harada , Satoshi Nagata , Kazuki Takeda
IPC分类号： H04W16/14 , H04W72/04
CPC分类号： H04W16/14 , H04L5/0091 , H04L27/0006 , H04W16/32 , H04W72/042 , H04W76/16
摘要： A user terminal that can communicate with a radio base station by using a licensed band and an unlicensed band is disclosed. The user terminal includes a receiving section that receives downlink signals transmitted in the licensed band and the unlicensed band, a measurement section that measures a downlink signal transmitted in the unlicensed band, and a control section that controls feedback of a measurement result. The receiving section receives information related to a command for the measurement in the unlicensed band and/or a command for the feedback of the measurement result by using the licensed band.

3. 发明申请

US20160174026A1 RADIO COMMUNICATION SYSTEM AND LOCATION CHARACTERISTIC DETERMINATION METHOD 有权
标题翻译：无线电通信系统和位置特征确定方法
公开(公告)号：US20160174026A1
公开(公告)日：2016-06-16
申请号：US14907986
申请日：2014-06-10
申请人： NTT DOCOMO, INC.
发明人： Yasufumi Morioka , Kouki Hayashi , Masanori Ishida , Yoshifumi Morihiro
IPC分类号： H04W4/02 , H04W60/00
CPC分类号： H04W4/02 , H04W60/00 , H04W64/00
摘要： A radio communication system includes: a visit information storage unit that stores plural visit information elements each indicating information on a visit to a cell visited by a user equipment; an event detector that detects an event that occurs in the user equipment; a cell identifier detector that detects a cell identifier that indicates a cell visited by the user equipment; and a location characteristic determiner that determines a location characteristic of the cell indicated by the cell identifier based on one or more visit information elements corresponding to the cell. The location to characteristic determiner determines the location characteristic of a cell visited by the user equipment when the event detector detects a no-cell-change event other than a cell-change event that indicates a change in the cell identifier.
摘要翻译：无线电通信系统包括：访问信息存储单元，存储多个访问信息元素，每个访问信息元素指示访问由用户设备访问的小区的信息; 检测用户设备中发生的事件的事件检测器; 小区标识符检测器，其检测指示所述用户设备访问的小区的小区标识符; 以及位置特征确定器，其基于与所述小区相对应的一个或多个访问信息元素来确定由所述小区标识符指示的所述小区的位置特性。当事件检测器检测到除了指示小区标识符的改变的小区变化事件之外的无小区变化事件时，到特征确定器的位置确定用户设备访问的小区的位置特性。

4. 发明申请

US20160381568A1 MOBILE COMMUNICATION SYSTEM, RADIO BASE STATION, RADIO MOBILE STATION AND MOBILE COMMUNICATION METHOD 有权
标题翻译：移动通信系统，无线电基站，无线电移动站和移动通信方法
公开(公告)号：US20160381568A1
公开(公告)日：2016-12-29
申请号：US15102883
申请日：2014-12-10
申请人： NTT DOCOMO, INC.
发明人： Yoshifumi Morihiro , Satoshi Suyama , Jiyun Shen , Yukihiko Okumura
IPC分类号： H04W16/24 , H04W72/04
CPC分类号： H04W16/24 , H04W36/00 , H04W72/0406 , H04W84/005
摘要： A mobile communication system that includes a first communication system, which features a user terminal that is present in a moving object, a first radio base station that forms a cell in the moving object, and a first core network that is connected with an external network, and a second communication system, which features a radio mobile station that is provided in the moving object, a second radio base station that forms a cell on the path of the movement of the moving object, and a second core network that is connected with the second radio base station. The first radio base station and the radio mobile station are connected via a user-plane interface and a control-plane interface between the radio base stations and the core networks.
摘要翻译：一种移动通信系统，包括：第一通信系统，其特征在于存在于移动对象中的用户终端;形成移动对象中的小区的第一无线基站;以及与外部网络连接的第一核心网以及第二通信系统，其特征在于提供在移动对象中的无线移动站，在移动对象的移动路径上形成小区的第二无线基站，以及与移动对象连接的第二核心网第二个无线电基站。第一无线基站和无线移动台经由用户平面接口和无线基站与核心网之间的控制平面接口连接。

5. 发明申请

US20160127974A1 RADIO COMMUNICATION SYSTEM AND COMMUNICATION CONTROL METHOD 有权
标题翻译：无线电通信系统和通信控制方法
公开(公告)号：US20160127974A1
公开(公告)日：2016-05-05
申请号：US14896976
申请日：2014-05-01
申请人： NTT DOCOMO, INC.
发明人： Yasufumi Morioka , Kouki Hayashi , Yoshifumi Morihiro
IPC分类号： H04W36/34 , H04W64/00
CPC分类号： H04W36/34 , H04M3/487 , H04W36/00 , H04W36/32 , H04W64/00 , H04W64/006
摘要： A radio communication system includes: a visit information storage unit that stores plural visit information elements each indicating information on a visit to a cell visited by a user equipment; a cell visit detector that detects that the user equipment that was visiting a first cell starts a visit to a second cell differing from the first cell; a ping-ponging state determiner that determines whether a ping-ponging state has occurred, in which state start and ending of a visit to the second cell is repeated, wherein the determination is made based on a visit information element on a visit to the second cell visited by the user equipment; and a calculator that calculates a visit time length of the visit to the second cell in accordance with the determination by the ping-ponging state determiner.
摘要翻译：无线电通信系统包括：访问信息存储单元，存储多个访问信息元素，每个访问信息元素指示访问由用户设备访问的小区的信息; 检测出访问第一小区的用户设备开始访问与第一小区不同的第二小区的小区访问检测器; 确定是否发生乒乓状态的乒乓状态确定器，其中重复进行对第二小区的访问的开始和结束状态，其中基于访问第二小区的访问信息元素进行确定用户设备访问的小区; 以及计算器，其根据乒乓状态确定器的确定来计算访问第二小区的访问时间长度。

6. 发明申请

US20190387467A1 USER TERMINAL AND CELL SELECTION METHOD 审中-公开
公开(公告)号：US20190387467A1
公开(公告)日：2019-12-19
申请号：US16487544
申请日：2017-12-18
申请人： NTT DOCOMO, INC.
发明人： Akira Kishida , Yoshifumi Morihiro , Takahiro Asai , Yukihiko Okumura
IPC分类号： H04W48/20 , H04W64/00 , H04W24/10 , H04W36/08 , H04W88/06
摘要： In user terminal 10 of the present invention, connection-cell-selection controlling section 110 measures reception quality of signals respectively transmitted from cells and received by antenna section 108, corrects the reception quality of each of the cells based on a positional relationship between each of the cells and user terminal 10 and based on a moving direction of user terminal 10, and determines a connection cell for user terminal 10 (base station in communication with user terminal 10) based on the corrected reception quality. This configuration lowers a cell switching frequency, while preventing degradation of throughput and the like in a future radio communication system (multilayer cellular radio network).

7. 发明授权

US10484917B2 Handover controller communication apparatus 有权
公开(公告)号：US10484917B2
公开(公告)日：2019-11-19
申请号：US16082778
申请日：2017-02-15
申请人： NTT DOCOMO, INC.
发明人： Yoshifumi Morihiro , Takahiro Asai
IPC分类号： H04W36/00 , H04W36/04 , H04W36/30 , H04W36/38
摘要： A communication apparatus in a wireless communication system in which a plurality of cells with different bands are overlaid and which includes the communication apparatus and a user equipment include: an acquisition unit configured to acquire communication quality of the user equipment in a first cell in which the user equipment resides; a determination unit configured to determine whether to perform the switch to a second cell overlaid with the first cell based on the communication quality of the user equipment; and an instruction unit configured to instruct the user equipment to perform the switch to the second cell when the switch to the second cell overlaid with the first cell is determined.

8. 发明授权

US08849284B2 Mobile communication method, radio access apparatus, and gateway apparatus 有权
标题翻译：移动通信方法，无线接入装置和网关装置
公开(公告)号：US08849284B2
公开(公告)日：2014-09-30
申请号：US13862981
申请日：2013-04-15
申请人： NTT DoCoMo, Inc.
发明人： Wuri Andarmawanti Hapsari , Minami Ishii , Keisuke Suzuki , Hiroto Tooyama , Yoshifumi Morihiro
IPC分类号： H04W36/00 , H04W36/14 , H04W99/00 , H04W88/16 , H04W88/06 , H04W92/20 , H04W88/04
CPC分类号： H04W36/14 , H04W36/00 , H04W88/04 , H04W88/06 , H04W88/16 , H04W92/20 , H04W99/00
摘要： A mobile communication method according to the present invention includes the steps of: when a gateway apparatus (S-GW) is switched from a first state where downlink data is transmitted to a first radio access apparatus to a second state where the downlink data is transmitted to a second radio access apparatus, transferring, from the first radio access apparatus to the second radio access apparatus, the downlink data which is received from the gateway apparatus and to which specific information is added; and transmitting, from the second radio access apparatus to a mobile station (UE), transfer downlink data which is transferred from the first radio access apparatus and to which the specific information is added, before new downlink data transmitted from the gateway apparatus (S-GW).
摘要翻译：根据本发明的移动通信方法包括以下步骤：当网关装置（S-GW）从下行链路数据被发送到第一无线接入装置的第一状态切换到发送下行链路数据的第二状态时向第二无线接入装置，从第一无线接入装置向第二无线接入装置传送从网关装置接收的下行链路数据，并附加哪个特定信息; 在从所述网关装置发送的新的下行链路数据之前，从所述第二无线接入装置向移动台（UE）发送从所述第一无线接入装置传送的并附加了所述特定信息的下行链路数据， GW）。

9. 发明授权

US11184844B2 User terminal and cell selection method 有权
公开(公告)号：US11184844B2
公开(公告)日：2021-11-23
申请号：US16487544
申请日：2017-12-18
申请人： NTT DOCOMO, INC.
发明人： Akira Kishida , Yoshifumi Morihiro , Takahiro Asai , Yukihiko Okumura
IPC分类号： H04W48/20 , H04W24/10 , H04W36/08 , H04W64/00 , H04W88/06
摘要： In user terminal 10 of the present invention, connection-cell-selection controlling section 110 measures reception quality of signals respectively transmitted from cells and received by antenna section 108, corrects the reception quality of each of the cells based on a positional relationship between each of the cells and user terminal 10 and based on a moving direction of user terminal 10, and determines a connection cell for user terminal 10 (base station in communication with user terminal 10) based on the corrected reception quality. This configuration lowers a cell switching frequency, while preventing degradation of throughput and the like in a future radio communication system (multilayer cellular radio network).

10. 发明授权

US09801012B2 Radio communication system and location characteristic determination method 有权
公开(公告)号：US09801012B2
公开(公告)日：2017-10-24
申请号：US14907986
申请日：2014-06-10
申请人： NTT DOCOMO, INC.
发明人： Yasufumi Morioka , Kouki Hayashi , Masanori Ishida , Yoshifumi Morihiro
IPC分类号： H04W24/00 , H04W4/02 , H04W64/00 , H04W60/00
CPC分类号： H04W4/02 , H04W60/00 , H04W64/00
摘要： A radio communication system includes: a visit information storage unit that stores plural visit information elements each indicating information on a visit to a cell visited by a user equipment; an event detector that detects an event that occurs in the user equipment; a cell identifier detector that detects a cell identifier that indicates a cell visited by the user equipment; and a location characteristic determiner that determines a location characteristic of the cell indicated by the cell identifier based on one or more visit information elements corresponding to the cell. The location to characteristic determiner determines the location characteristic of a cell visited by the user equipment when the event detector detects a no-cell-change event other than a cell-change event that indicates a change in the cell identifier.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式