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公开(公告)号：US10251141B2
公开(公告)日：2019-04-02
申请号：US15292865
申请日：2016-10-13
发明人： Akira Shibuta , Hiroyuki Ishihara
摘要： A communication apparatus communicating with a plurality of another communication apparatuses through a network, includes a processor; and a communication device, in which the communication apparatus and the plurality of the other communication apparatuses are separated for each synchronous system, the processor generates a first time slot including a plurality of slots for communicating a synchronous message used in a first synchronous system, and generates a second time slot including a plurality of slots for communicating a synchronous message used in a second synchronous system, and the communication device transmits the synchronous message in a multicast manner in a first slot of the first time slot in the first synchronous system, and transmits the synchronous message in the multicast manner in a second slot different from the first slot of the second time slot in the second synchronous system.
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公开(公告)号：US10149297B2
公开(公告)日：2018-12-04
申请号：US15206891
申请日：2016-07-11
发明人： Hiroyuki Ishihara , Akira Shibuta , Shinji Ikegami , Hirokazu Sugiyama , Takashi Enoki , Kazuhide Shibata , Masayuki Nagano
摘要： Data is transferred between a DECT terminal and an LTE base station. A base unit includes a DECT communication unit and an LTE communication unit, the DECT communication unit performing DECT communication with a DECT terminal, and the LTE communication unit transmitting and receiving data with the DECT communication unit and performing LTE communication with an LTE carrier gateway through an LTE base station. The DECT communication unit, in a case where an adjacent frequency bandwidth that is adjacent to one of DECT communication sub-bands is used in the LTE communication, controls the DECT communication to be performed by using the other sub-band.
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公开(公告)号：US09642133B2
公开(公告)日：2017-05-02
申请号：US14682941
申请日：2015-04-09
CPC分类号： H04W72/0446 , H04J3/0667 , H04W56/001 , H04W72/0406 , H04W84/20 , H04W84/22
摘要： A communication apparatus is provided that can improve synchronization precision between multiple communication apparatuses. For this reason, the communication apparatus that communicates with a different communication apparatus over a network includes a slot control unit that generates multiple slots for communicating a synchronization message, and allocates each slot to the communication apparatus and the different communication apparatus; and a communication unit that communicates the synchronization message between the communication apparatus and the different apparatus, using the each slot that is allocated.
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4.发明授权公开(公告)号：US09781647B2
公开(公告)日：2017-10-03
申请号：US15199022
申请日：2016-06-30
发明人： Hiroyuki Ishihara , Akira Shibuta , Shinji Ikegami , Hirokazu Sugiyama , Takashi Enoki , Kazuhide Shibata , Masayuki Nagano
IPC分类号： H04M1/72 , H04W88/08 , H04W88/10 , H04W36/14 , H04W48/18 , H04J11/00 , H04L12/801 , H04M1/02 , H04W72/10 , H04W72/12 , H04W84/04 , H04W84/10 , H04W84/12 , H04W88/16
CPC分类号： H04W36/14 , H04J11/00 , H04L47/29 , H04M1/0202 , H04W48/18 , H04W72/10 , H04W72/1226 , H04W84/04 , H04W84/10 , H04W84/12 , H04W88/10 , H04W88/16
摘要： Data is transferred between a DECT terminal and an LTE base station.A base unit includes a DECT communication unit and an LTE communication unit, the DECT communication unit performing DECT communication with a DECT terminal, and the LTE communication unit transmitting and receiving data with the DECT communication unit and performing LTE communication with an LTE carrier gateway through an LTE base station. The DECT communication unit transmits a connection verification request to the LTE communication unit in order to verify a connection state of an LTE link with the LTE carrier gateway. The LTE communication unit transmits a connection verification response to the DECT communication unit in response to the connection verification request in a case where an LTE link is connected. The DECT communication unit, in a case where the DECT communication unit receives a DECT connection request for requesting connection of an DECT link from the DECT terminal and receives the connection verification response from the LTE communication unit, transmits a DECT connection response to the DECT terminal in response to the DECT connection request.
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公开(公告)号：US09730172B2
公开(公告)日：2017-08-08
申请号：US14684057
申请日：2015-04-10
CPC分类号： H04W56/0015 , H04J3/0667
摘要： There is provided a base station device capable of achieving synchronization in a wired manner between base station devices in IP-DECT. Thus, according to the base station device, in slave base station devices, synchronization control unit hardware that is connected to Ethernet (registered trademark), and outputs timestamp information and synchronization pulses which includes interval pulses and wide pulses, synchronization control unit software that generates frame numbers based on the timestamp information, and a wireless timing control unit that receives the synchronization pulses generated in the synchronization control unit hardware and the frame numbers generated in the synchronization control unit software, and performs timing control for performing wireless communication with IP-DECT client terminals are provided. The wireless timing control unit includes a frame counter, and the frame counter is updated using the frame numbers with the wide pulses as triggers.
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公开(公告)号：US09699750B2
公开(公告)日：2017-07-04
申请号：US14682906
申请日：2015-04-09
CPC分类号： H04W56/0015 , H04W56/00
摘要： Provided is a synchronization establishment method capable of reducing the time required to establish synchronization in a slave station without putting an unnecessary load on a master station. In the synchronization establishment method, a one-second cycle of a message is divided into 100 time slots including slot “0” to slot “99”; ten slots including slot “90” to slot “99” as some of the slots are allocated to a fast synchronization establishment mode; and, in the fast synchronization establishment mode, messages such as Sync2, Delay_Req, and Delay_Resp are transmitted and received between the master station and the slave station so that the slave station establishes synchronization.
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公开(公告)号：US09270419B2
公开(公告)日：2016-02-23
申请号：US14668198
申请日：2015-03-25
发明人： Akira Shibuta , Yutaka Suwa , Hiroyuki Ishihara , Kyoichi Obana
CPC分类号： H04L1/0061 , G10L19/005 , G10L19/0204 , H03M3/042 , H03M7/3046 , H03M13/09 , H04B14/068 , H04L1/0041 , H04L1/0042
摘要： A device divides a sampled sound signal into a high frequency signal and a low frequency signal, individually encodes the high frequency signal and the low frequency signal, and generates error detection code pertinent to the high frequency ADPCM data and the low frequency ADPCM data. The device replaces data pertinent to some of a plurality of bits which configure the low frequency ADPCM data with the error detection code and transmits them. A receiver side receives the high frequency ADPCM data and the low frequency ADPCM data, and individually processes the high frequency ADPCM data and the low frequency ADPCM data in accordance with a value of the error detection code.
摘要翻译： 一个设备将采样的声音信号分成高频信号和低频信号，对高频信号和低频信号进行单独编码，并产生与高频ADPCM数据和低频ADPCM数据相关的检错码。 该装置用与错误检测码配置低频ADPCM数据的多个比特中的一些比特相关的数据进行替换，并发送它们。 接收机侧接收高频ADPCM数据和低频ADPCM数据，并且根据错误检测码的值单独处理高频ADPCM数据和低频ADPCM数据。
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公开(公告)号：US11350349B2
公开(公告)日：2022-05-31
申请号：US16697671
申请日：2019-11-27
IPC分类号： H04W48/16 , H04W72/04 , H04M1/72502
摘要： A base unit that performs DECT communication with a cordless telephone under the control of the base unit and a repeater under the control of the base unit, the base unit including a controller that generates first slot information to which the cordless telephone refers when the cordless telephone accesses the base unit and second slot information to which the repeater refers when the repeater accesses the base unit and a radio section that transmits the first slot information to the cordless telephone and the second slot information to the repeater, wherein the controller generates the first slot information representing that access to a first slot group out of a plurality of slots in a predetermined period is restricted and generates the second slot information representing that access to a remaining second slot group out of the plurality of slots excluding the first slot group is restricted.
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公开(公告)号：US20170019824A1
公开(公告)日：2017-01-19
申请号：US15199022
申请日：2016-06-30
发明人： Hiroyuki Ishihara , Akira Shibuta , Shinji Ikegami , Hirokazu Sugiyama , Takashi Enoki , Kazuhide Shibata , Masayuki Nagano
CPC分类号： H04W36/14 , H04J11/00 , H04L47/29 , H04M1/0202 , H04W48/18 , H04W72/10 , H04W72/1226 , H04W84/04 , H04W84/10 , H04W84/12 , H04W88/10 , H04W88/16
摘要： Data is transferred between a DECT terminal and an LTE base station.A base unit includes a DECT communication unit and an LTE communication unit, the DECT communication unit performing DECT communication with a DECT terminal, and the LTE communication unit transmitting and receiving data with the DECT communication unit and performing LTE communication with an LTE carrier gateway through an LTE base station. The DECT communication unit transmits a connection verification request to the LTE communication unit in order to verify a connection state of an LTE link with the LTE carrier gateway. The LTE communication unit transmits a connection verification response to the DECT communication unit in response to the connection verification request in a case where an LTE link is connected. The DECT communication unit, in a case where the DECT communication unit receives a DECT connection request for requesting connection of an DECT link from the DECT terminal and receives the connection verification response from the LTE communication unit, transmits a DECT connection response to the DECT terminal in response to the DECT connection request.
摘要翻译： 基本单元包括DECT通信单元和LTE通信单元，DECT通信单元与DECT终端执行DECT通信，并且LTE通信单元与DECT通信单元发送和接收数据，并且与LTE载波网关进行LTE通信，通过 LTE基站。 DECT通信单元向LTE通信单元发送连接验证请求，以验证与LTE载波网关的LTE链路的连接状态。 在连接LTE链路的情况下，LTE通信单元响应于连接验证请求向DECT通信单元发送连接验证响应。 DECT通信单元，在DECT通信单元从DECT终端接收到请求连接DECT链路的DECT连接请求并从LTE通信单元接收到连接验证响应的情况下，向DECT终端发送DECT连接响应 响应于DECT连接请求。
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公开(公告)号：US09386548B2
公开(公告)日：2016-07-05
申请号：US13865615
申请日：2013-04-18
发明人： Hiroyuki Ishihara , Yutaka Suwa , Akira Shibuta
CPC分类号： H04W56/00 , H04J3/0641 , H04J3/0658 , H04W56/0015
摘要： A base station apparatus includes a wireless communication unit, a wired communication unit, and a communication timing correction unit. If the wireless communication unit fails to receive a synchronization signal from another base station apparatus at given reception timing, the wired communication unit transmits a synchronization state confirmation signal for confirming a synchronization state between the base station and another base station apparatus, and receives a synchronization state response signal including a determination result of the synchronization state. The communication timing correction unit corrects a communication timing based on the synchronization state response signal.
摘要翻译： 基站装置包括无线通信单元，有线通信单元和通信定时校正单元。 如果无线通信单元在给定的接收定时未能从另一基站装置接收到同步信号，则有线通信单元发送用于确认基站与另一基站装置之间的同步状态的同步状态确认信号，并接收同步 状态响应信号，包括同步状态的确定结果。 通信定时校正单元基于同步状态响应信号校正通信定时。
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