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1. 发明授权

US10117264B2 Allocation method, radio communication system, allocation apparatus, and program thereof 有权
公开(公告)号：US10117264B2
公开(公告)日：2018-10-30
申请号：US15038136
申请日：2014-11-17
申请人： NEC Corporation
发明人： Daisuke Ohta , Takahiro Nobukiyo
IPC分类号： H04W72/12 , H04J11/00 , H04L5/00 , H04W72/04 , H04W88/08
摘要： The application provides a CA scheduling scheme, a base station, a radio communication system and a program to allocate radio resources based on allocation indexes calculated using the bandwidths of component carriers and traffic loads. A frequency block allocation method is for a radio communication system in which a radio station and mobile stations perform radio communication using a frequency block selected from a plurality of system bands. The method comprises an allocation number determination step of determining number of system bands that can allocate to each mobile station; a communication band index calculation step of calculating a communication band index based on bandwidths and loads of the system bands according to the determined allocation number; an allocation index calculation step of calculating an allocation index of the mobile station for each of the system bands using the communication band index and a frequency block allocation step of allocating frequency blocks to the mobile station based on the allocation indices.

2. 发明授权

US09615366B2 Radio resource setting method, base station, radio resource setting system, and non-transitory computer readable medium 有权
公开(公告)号：US09615366B2
公开(公告)日：2017-04-04
申请号：US14440467
申请日：2013-06-24
申请人： NEC Corporation
发明人： Daisuke Ohta , Takahiro Nobukiyo
IPC分类号： H04W72/04 , H04W16/04 , H04W16/32 , H04W72/08
CPC分类号： H04W72/044 , H04W16/04 , H04W16/32 , H04W72/0426 , H04W72/0486 , H04W72/082
摘要： A radio resource setting method according to the present invention is a method for, when there are a first communication area managed by a pico base station (100) and a second communication area including at least part of the first communication area and managed by a macro base station (200), setting radio resources that the pico base station (100) and macro base station (200) can use for wireless communication with a terminal (300), the radio resource setting method comprising: calculating determination conditions for determining whether or not to set radio resources whose use is limited in the second communication area; calculating a ratio of the radio resources whose use is limited in the second communication area; and setting the radio resources whose use is limited in the second communication area using the determination conditions and the ratio of the radio resources whose use is limited.

3. 发明授权

US11503506B2 Base station device, wireless communication control method, and recording medium having base station control program stored therein 有权
公开(公告)号：US11503506B2
公开(公告)日：2022-11-15
申请号：US16330626
申请日：2017-09-01
申请人： NEC Corporation
发明人： Motoki Morita , Takahiro Nobukiyo
IPC分类号： H04W28/22 , H04W72/08
摘要： The present invention enhances the quality that a user feels in a wireless communication system. This base station device 60 is provided with: a calculation unit 63 which calculates a data transmission start deadline at which data transmission to a wireless terminal device 70 can be completed by a completion deadline for transmission to the wireless terminal device 70 set on the basis of information about the application, when the data, which is transmitted to the wireless terminal device 70 by the application executed by a server device 80 in response to a request from the wireless terminal device 70, is transmitted to the wireless terminal device 70 by using a wireless resource; and an allocation unit 64 which allocates a wireless resource necessary for the transmission of the corresponding data to the wireless terminal device 70 on the basis of the transmission start deadline and the current time.

4. 发明授权

US11159957B2 Base station apparatus, service provision method, and program 有权
公开(公告)号：US11159957B2
公开(公告)日：2021-10-26
申请号：US16961763
申请日：2019-01-17
申请人： NEC CORPORATION
发明人： Motoki Morita , Daisuke Ohta , Takahiro Nobukiyo
IPC分类号： H04W16/28 , H04B7/0413 , H04W24/08
摘要： A base station apparatus is connected to a plurality of transmission/reception points each switching a transmission scheme according to reception environment of wireless terminal and providing service to wireless terminal. The base station apparatus includes a history recording part recording history of beam and transmission scheme selected by wireless terminal with respect to each transmission/reception point; a calculation part calculating a second throughput when service is received using one or more beams being candidates for selection by wireless terminal among beams transmitted by a second transmission/reception point different from a first transmission/reception point connected to wireless terminal; and a transmission/reception point selection part providing service from the second transmission/reception point to wireless terminal by the beam and the transmission scheme corresponding to the second throughput subject to satisfying a predetermined condition with respect to the first throughput being the measured throughput with the first transmission/reception point connected to wireless terminal.

5. 发明授权

US10756832B2 Wireless quality prediction device, wireless base station, wireless terminal, wireless quality prediction method and wireless quality prediction program 有权
公开(公告)号：US10756832B2
公开(公告)日：2020-08-25
申请号：US16070417
申请日：2017-01-26
申请人： NEC CORPORATION
发明人： Kosei Kobayashi , Takahiro Nobukiyo
IPC分类号： H04B17/373 , H04W16/18 , H04W36/00 , H04W36/30 , H04B17/309 , H04B17/391
摘要： In the present invention, in order to predict discontinuous wireless quality changes without using wireless terminal position information in a cellular type wireless communication system, a wireless quality prediction device is provided with: a measurement information acquisition means for acquiring wireless quality measurement information measured by a wireless terminal that moves within a wireless communication system having at least two wireless cells; a wireless quality transition pattern construction means for using the measurement information to construct, as a wireless quality transition pattern, a time-series data pattern of wireless quality associated with the passage of time; and a wireless quality prediction means for acquiring from the wireless quality transition pattern construction means a wireless quality transition pattern having a high degree of similarity to the measurement information, in regards to the wireless quality measurement information acquired from a wireless terminal for which a prediction is to be made, and for using the acquired wireless quality transition pattern to predict that future wireless quality in respect to the wireless terminal for which a prediction is to be made, or a wireless cell in which the wireless terminal for which a prediction is to be made is located, will change in the future.

6. 发明授权

US09426804B2 Radio resource setting method, base station, radio resource setting system, and non-transitory computer readable medium 有权
标题翻译：无线资源设定方法，基站，无线资源设定系统，非暂时性计算机可读介质
公开(公告)号：US09426804B2
公开(公告)日：2016-08-23
申请号：US14440649
申请日：2013-06-24
申请人： NEC Corporation
发明人： Daisuke Ohta , Takahiro Nobukiyo
IPC分类号： H04W4/00 , H04W72/04 , H04W16/04 , H04W24/08 , H04W84/04 , H04W28/16
CPC分类号： H04W72/0446 , H04W16/04 , H04W24/08 , H04W28/16 , H04W84/042
摘要： The method is a method of setting radio resources which a pico base station (100) and a macro base station (200) can use for wireless communication with a terminal, and includes obtaining loads the pico base station (100) and the macro base station (200), calculating a first delay index of the pico base station using the load of the pico base station (100), calculating using the load of the macro base station (200) a second delay index of the macro base station (200) in case where the macro base station (200) has set radio resources whose use is limited, and calculating a ratio of the radio resources whose use is limited by the macro base station (200) based on the first and second delay indices, and setting the radio resources whose use is limited in the second communication area using the ratio of the radio resources whose use is limited.
摘要翻译：该方法是设置微微基站（100）和宏基站（200）可以用于与终端的无线通信的无线资源的方法，并且包括获得微微基站（100）和宏基站（200），使用微微基站（100）的负载来计算微微基站的第一延迟索引，使用宏基站（200）的负载来计算宏基站（200）的第二延迟索引，在宏基站（200）设定了使用受限的无线资源的情况下，基于第一延迟指标和第二延迟指标，计算由宏基站（200）限制的无线资源的比例，使用限制的无线资源的比例在第二通信区域中限制使用的无线资源。

7. 发明授权

US11432196B2 Control device, control method, and non-transitory computer readable medium storing program 有权
公开(公告)号：US11432196B2
公开(公告)日：2022-08-30
申请号：US16761591
申请日：2018-10-29
申请人： NEC Corporation
发明人： Nobuhiko Itoh , Takanori Iwai , Takahiro Nobukiyo , Motoki Morita
IPC分类号： H04W4/00 , H04W28/14 , H04L41/5019 , H04W28/06
摘要： To provide a control device that can prevent an increase in a processing load and that can effectively allocate a radio resource. A control device (30) according the present disclosure includes: a deciding unit (31) configured to decide whether or not an interval between generation of a first flow that is generated when performing radio communication between a communication terminal (10) and a base station (20) and generation of a second flow that is generated after the generation of the first flow exceeds a permissible delay time of the first flow; and a determination unit (32) configured to determine deletion of non-transmitted data related to the communication terminal (10) after lapse of the permissible delay time of the first flow when it is decided that the generation interval exceeds the permissible delay time of the first flow.

8. 发明授权

US09584288B2 Communication channel quality estimating method, wireless communications system, base station, and program 有权
标题翻译：通信信道质量估计方法，无线通信系统，基站和程序
公开(公告)号：US09584288B2
公开(公告)日：2017-02-28
申请号：US14389128
申请日：2013-03-13
申请人： NEC Corporation
发明人： Takahiro Nobukiyo , Yasushi Maruta
IPC分类号： H04L5/00 , H04L1/00 , H04L1/20
CPC分类号： H04L5/0057 , H04L1/0003 , H04L1/0009 , H04L1/203 , H04L5/0073
摘要： The present invention addresses the problem of providing technology which increases the accuracy for estimating quality of a communication channel even in a case in which transmission time limit frames have been set between neighboring cells. The present application relates to quality estimation of a communication channel used by a base station for performing wireless communication with a terminal within a communication area, and is characterized in acquiring quality information for the communication channel between the base station and the terminal, acquiring reception error information related to reception errors for data communication using the communication channel, acquiring transmission time-limit frame information set by a neighboring base station of the base station, updating correction values in accordance with setting information for the transmission time-limit frame information and the reception error information, and estimating the quality of the communication channel using the correction values and the acquired quality information.
摘要翻译：本发明解决了即使在已经在相邻小区之间设置传输时限的情况下，提供提高通信信道质量的准确性的技术的问题。本申请涉及基站用于与通信区域内的终端进行无线通信的通信信道的质量估计，其特征在于，获取基站与终端之间的通信信道的质量信息，获取接收错误与使用通信信道进行数据通信的接收错误有关的信息，获取由基站的相邻基站设定的发送时限帧信息，根据发送时限帧信息和接收的设定信息更新校正值误差信息，以及使用校正值和获取的质量信息来估计通信信道的质量。

9. 发明申请

US20150289263A1 RADIO RESOURCE SETTING METHOD, BASE STATION, RADIO RESOURCE SETTING SYSTEM, AND NON-TRANSITORY COMPUTER READABLE MEDIUM 有权
标题翻译：无线电资源设置方法，基站，无线资源设置系统和非终端计算机可读介质
公开(公告)号：US20150289263A1
公开(公告)日：2015-10-08
申请号：US14440649
申请日：2013-06-24
申请人： NEC CORPORATION
发明人： Daisuke Ohta , Takahiro Nobukiyo
IPC分类号： H04W72/04 , H04W24/08
CPC分类号： H04W72/0446 , H04W16/04 , H04W24/08 , H04W28/16 , H04W84/042
摘要： The method is a method of setting radio resources which a pico base station (100) and a macro base station (200) can use for wireless communication with a terminal, and includes obtaining loads the pico base station (100) and the macro base station (200), calculating a first delay index of the pico base station using the load of the pico base station (100), calculating using the load of the macro base station (200) a second delay index of the macro base station (200) in case where the macro base station (200) has set radio resources whose use is limited, and calculating a ratio of the radio resources whose use is limited by the macro base station (200) based on the first and second delay indices, and setting the radio resources whose use is limited in the second communication area using the ratio of the radio resources whose use is limited.
摘要翻译：该方法是设置微微基站（100）和宏基站（200）可以用于与终端的无线通信的无线资源的方法，并且包括获得微微基站（100）和宏基站（200），使用微微基站（100）的负载来计算微微基站的第一延迟索引，使用宏基站（200）的负载来计算宏基站（200）的第二延迟索引，在宏基站（200）设定了使用受限的无线资源的情况下，基于第一延迟指标和第二延迟指标，计算由宏基站（200）限制的无线资源的比例，使用限制的无线资源的比例在第二通信区域中限制使用的无线资源。

10. 发明申请

US20150049703A1 COMMUNICATION CHANNEL QUALITY ESTIMATING METHOD, WIRELESS COMMUNICATIONS SYSTEM, BASE STATION, AND PROGRAM 有权
标题翻译：通信信道质量评估方法，无线通信系统，基站和程序
公开(公告)号：US20150049703A1
公开(公告)日：2015-02-19
申请号：US14389128
申请日：2013-03-13
申请人： NEC Corporation
发明人： Takahiro Nobukiyo , Yasushi Maruta
IPC分类号： H04L5/00
CPC分类号： H04L5/0057 , H04L1/0003 , H04L1/0009 , H04L1/203 , H04L5/0073
摘要： The present invention addresses the problem of providing technology which increases the accuracy for estimating quality of a communication channel even in a case in which transmission time limit frames have been set between neighboring cells. The present application relates to quality estimation of a communication channel used by a base station for performing wireless communication with a terminal within a communication area, and is characterized in acquiring quality information for the communication channel between the base station and the terminal, acquiring reception error information related to reception errors for data communication using the communication channel, acquiring transmission time-limit frame information set by a neighboring base station of the base station, updating correction values in accordance with setting information for the transmission time-limit frame information and the reception error information, and estimating the quality of the communication channel using the correction values and the acquired quality information.
摘要翻译：本发明解决了即使在已经在相邻小区之间设置传输时限的情况下，提供提高通信信道质量的准确性的技术的问题。本申请涉及基站用于与通信区域内的终端进行无线通信的通信信道的质量估计，其特征在于，获取基站与终端之间的通信信道的质量信息，获取接收错误与使用通信信道进行数据通信的接收错误有关的信息，获取由基站的相邻基站设定的发送时限帧信息，根据发送时限帧信息和接收的设定信息更新校正值误差信息，以及使用校正值和获取的质量信息来估计通信信道的质量。

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