公开(公告)号：US20180020486A1

公开(公告)日：2018-01-18

申请号：US15714294

申请日：2017-09-25

Applicant: FUJITSU LIMITED

Inventor： Tetsuya YANO ,  Yoshiaki OHTA ,  Shinichiro AIKAWA

IPC: H04W74/08 ,  H04W72/10 ,  H04W72/08 ,  H04W72/14 ,  H04W72/04

CPC classification number: H04W74/0833 ,  H04W28/08 ,  H04W48/14 ,  H04W72/0486 ,  H04W72/085 ,  H04W72/10 ,  H04W72/14

Abstract: A wireless communications system includes a first wireless apparatus; and a second wireless apparatus. In a case of receiving from the second wireless apparatus, a random access preamble in an initial access of the second wireless apparatus to a first cell of the first wireless apparatus, the first wireless apparatus transmits a response signal for the random access preamble, the response signal including an instruction to change a connected cell to a cell different from the first cell. The second wireless apparatus transmits based on the instruction included in the response signal transmitted from the first wireless apparatus, a random access preamble in an initial access to a second cell different from the first cell.

公开(公告)号：US20160198414A1

公开(公告)日：2016-07-07

申请号：US15070474

申请日：2016-03-15

Applicant: FUJITSU LIMITED

Inventor： Tetsuya YANO ,  Yoshihiro KAWASAKI ,  Yoshiaki OHTA ,  Daisuke JITSUKAWA

IPC: H04W52/24 ,  H04W52/38

CPC classification number: H04W52/242 ,  H04W52/143 ,  H04W52/383

Abstract: A communication system includes a first communication terminal and a second communication terminal that performs direct communication with the first communication terminal. The first communication terminal controls transmission power of a second reference signal which is a partial reference signal among a plurality of reference signals so as to reach known transmission power, the plurality of reference signals being transmitted with first data and used for demodulating the first data, controls transmission power of a first reference signal which is another reference signal other than the second reference signal among the plurality of reference signals so as to reach transmission power linked to transmission power of the first data, and transmits the plurality of reference signals subjected to transmission power control to the second communication terminal.

Abstract translation: 通信系统包括与第一通信终端进行直接通信的第一通信终端和第二通信终端。 第一通信终端控制作为多个参考信号中的部分参考信号的第二参考信号的发送功率，以便达到已知的发送功率，多个参考信号以第一数据发送并用于解调第一数据， 控制多个参考信号之中作为第二参考信号之外的另一参考信号的第一参考信号的发送功率，以达到与第一数据的发送功率相关的发送功率，并发送经过发送的多个参考信号 功率控制到第二通信终端。

公开(公告)号：US20160029390A1

公开(公告)日：2016-01-28

申请号：US14876215

申请日：2015-10-06

Applicant: FUJITSU LIMITED

Inventor： Yoshiaki OHTA ,  Yoshihiro KAWASAKI ,  Tetsuya YANO ,  Yoshinori TANAKA

IPC: H04W72/04 ,  H04W74/08

CPC classification number: H04W72/0453 ,  H04W72/02 ,  H04W72/0406 ,  H04W74/006 ,  H04W74/0833 ,  H04W76/14 ,  H04W84/042

Abstract: A radio communication apparatus to perform communication with another radio communication apparatus by using a plurality of frequency bands, the radio communication apparatus includes, a receiving unit configured to receive, when performing a random access procedure to said another radio communication apparatus, a control message by using a first frequency band as a response to a preamble message transmitted by the radio communication apparatus, the control message instructing communication using a second frequency band different from the first frequency band; and a control unit configured to perform, when the control message corresponds to the preamble message, data communication with said another radio communication apparatus by using the second frequency band.

Abstract translation: 一种通过使用多个频带与另一无线通信装置进行通信的无线通信装置，所述无线通信装置包括：接收单元，被配置为当对所述另一无线电通信装置执行随机接入过程时，接收控制消息， 使用第一频带作为对由所述无线电通信装置发送的前导消息的响应，所述控制消息指示使用不同于所述第一频带的第二频带的通信; 以及控制单元，被配置为当所述控制消息对应于所述前导消息时，通过使用所述第二频带与所述另一无线电通信装置进行数据通信。

公开(公告)号：US20150055604A1

公开(公告)日：2015-02-26

申请号：US14529898

申请日：2014-10-31

Applicant: FUJITSU LIMITED

Inventor： Yoshiaki OHTA ,  Yoshihiro KAWASAKI ,  Tetsuya YANO ,  Yoshinori TANAKA

IPC: H04W72/04 ,  H04W76/02

CPC classification number: H04W72/0453 ,  H04W72/02 ,  H04W72/0406 ,  H04W74/006 ,  H04W74/0833 ,  H04W76/14 ,  H04W84/042

Abstract: A radio communication apparatus that performs communication with another radio communication apparatus by using a plurality of pairs of a downlink frequency band and an uplink frequency band, the apparatus includes: a receiving unit configured to receive a control message by using a downlink frequency band of a first pair among downlink frequency bands of the pairs during a random access procedure to said another radio communication apparatus, the control message including identification information indicating use of an uplink frequency band of a second pair different from the first pair, the downlink frequency band of the first pair being monitored for control messages by the radio communication apparatus; and a control unit configured to control the radio communication apparatus to perform data communication with said another radio communication apparatus by using the uplink frequency band of the second pair indicated by the identification information included in the control message.

Abstract translation: 一种无线电通信装置，其通过使用多个下行链路频带和上行链路频带来与另一无线电通信装置进行通信，所述装置包括：接收单元，被配置为通过使用下行链路频带 在对所述另一无线电通信装置的随机接入过程期间，所述对的下行链路频带中的第一对，所述控制消息包括指示使用与所述第一对不同的第二对的上行链路频带的识别信息，所述第二对的下行链路频带 第一对由无线电通信装置监视控制消息; 以及控制单元，被配置为通过使用由包括在控制消息中的识别信息指示的第二对的上行链路频带来控制无线电通信装置与所述另一无线电通信装置进行数据通信。

公开(公告)号：US20140355550A1

公开(公告)日：2014-12-04

申请号：US14462389

申请日：2014-08-18

Applicant: FUJITSU LIMITED

Inventor： Tetsuya YANO ,  Yoshihiro Kawasaki

IPC: H04W72/04 ,  H04L5/00

CPC classification number: H04W72/0406 ,  H04L5/0037 ,  H04L5/0048 ,  H04L5/0094 ,  H04L25/0224

Abstract: A communication system includes: a first wireless station configured to: transmit a first control signal controlling communication from a second wireless station to the first wireless station and including first setting information indicative of setting of a communication channel from the second wireless station to the first wireless station, and transmit a second control signal controlling the communication from the second wireless station to the first wireless station and not including a part of the first setting information after transmitting the first control signal; and the second wireless station configured to: transmit a first data signal to the first wireless station in response to reception of the first control signal based on the first setting information, and transmit a second data signal to the first wireless station in response to reception of the second control signal based on the part of the first setting information and the second control signal.

Abstract translation: 通信系统包括：第一无线站，被配置为：将控制从第二无线站的通信的第一控制信号发送到第一无线站，并且包括指示从第二无线站到第一无线站的通信信道的设置的第一设置信息 并且发送控制从第二无线站到第一无线站的通信的第二控制信号，并且在发送第一控制信号之后不包括第一设置信息的一部分; 并且所述第二无线站被配置为：响应于所述第一设置信息接收到所述第一控制信号，将第一数据信号发送到所述第一无线站，并且响应于所述第一无线站的接收发送第二数据信号到所述第一无线站 所述第二控制信号基于所述第一设置信息和所述第二控制信号的一部分。

公开(公告)号：US20130100906A1

公开(公告)日：2013-04-25

申请号：US13711242

申请日：2012-12-11

Applicant: FUJITSU LIMITED

Inventor： Tetsuya YANO ,  Yoshihiro KAWASAKI ,  Yoshiaki OHTA ,  Kazuhisa OBUCHI

IPC: H04W72/04

CPC classification number: H04W72/0453 ,  H04B7/0417 ,  H04L1/0026 ,  H04L1/0027 ,  H04L5/001 ,  H04L5/0057 ,  H04W72/1231

Abstract: A radio communication method for performing radio communication by using a plurality of frequency bands in a first radio communication apparatus and a second radio communication, the method including transmitting to the second radio communication apparatus a first channel state information request corresponding to each of the plurality of frequency band, by the first radio communication apparatus; and transmitting to the first radio communication apparatus an information relating to a channel state for the frequency band specified by the first channel state information request, when the second radio communication apparatus receives the first channel state information request, by the second radio communication apparatus.

Abstract translation: 一种无线电通信方法，用于在第一无线电通信装置和第二无线电通信中使用多个频带进行无线电通信，所述方法包括向所述第二无线电通信装置发送对应于所述多个 第一无线电通信装置的频带; 以及当所述第二无线通信装置从所述第二无线通信装置接收到所述第一信道状态信息请求时，向所述第一无线通信装置发送与所述第一信道状态信息请求规定的频带的信道状态有关的信息。

公开(公告)号：US20130028240A1

公开(公告)日：2013-01-31

申请号：US13623610

申请日：2012-09-20

Applicant: FUJITSU LIMITED

Inventor： Kazuhisa OBUCHI ,  Tetsuya YANO ,  Shunji MIYAZAKI ,  Takao NAKAGAWA

IPC: H04W56/00

CPC classification number: H04B17/24 ,  H04B17/309 ,  H04L1/0026 ,  H04L1/0027 ,  H04L5/0048 ,  H04L5/0053 ,  Y02D70/122 ,  Y02D70/124

Abstract: A mobile user terminal, which communicates with a base station in an intermittent fashion, the mobile user terminal includes a radio transmitter which transmits downlink channel quality information indicating downlink channel quality and an uplink pilot signal to a base station in an intermittent fashion; and a transmit time controller which synchronizes transmit time of the downlink quality information and transmit time of the uplink pilot signal relative to each other, such that the downlink quality information and the uplink pilot signal are sent in adjacent different timings in a period corresponding to a state of intermittent communicate.

Abstract translation: 以间歇方式与基站进行通信的移动用户终端包括以间歇方式向基站发送指示下行链路质量的下行链路信道质量信息和上行链路导频信号的无线发射机; 以及发送时间控制器，其将下行链路质量信息的发送时间和上行链路导频信号的发送时间相对于彼此同步，使得下行链路质量信息和上行链路导频信号在相应的不同定时在相应于 间歇性沟通的状态

公开(公告)号：US20250024443A1

公开(公告)日：2025-01-16

申请号：US18884257

申请日：2024-09-13

Applicant: FUJITSU LIMITED

Inventor： Yoshiaki OHTA ,  YOSHIHIRO KAWASAKI ,  Tetsuya YANO

IPC: H04W72/0453 ,  H04W72/23

Abstract: A first wireless communication device that performs pre-allocated communication to communicate with a second wireless communication device, using a radio resource that is configured beforehand, the first wireless communication device includes a controller configured to reconfigure a frequency of a pre-allocated radio resource in the second wireless communication device while maintaining a preconfigured transmission cycle of the pre-allocated radio resource, and control implementation of the pre-allocated communication that uses the reconfigured frequency of the pre-allocated radio resource.

公开(公告)号：US20230388858A1

公开(公告)日：2023-11-30

申请号：US18233939

申请日：2023-08-15

Applicant: FUJITSU LIMITED

Inventor： Yoshiaki OHTA ,  YOSHIHIRO KAWASAKI ,  Tetsuya YANO

IPC: H04W28/16 ,  H04W72/54 ,  H04L5/00

CPC classification number: H04W28/16 ,  H04W72/54 ,  H04L5/0048

Abstract: A wireless communication device includes a controller configured to configure a plurality of entities for requirements of data to be transmitted by a radio bearer, configure communication channels with different communication configurations for the respective entities, select one entity and one communication channel in accordance with a state of the data, and control data communication with a counterpart wireless communication device.

公开(公告)号：US20140241283A1

公开(公告)日：2014-08-28

申请号：US14268214

申请日：2014-05-02

Applicant: FUJITSU LIMITED

Inventor： Yoshiaki OHTA ,  Yoshihiro KAWASAKI ,  Tetsuya YANO ,  Yoshinori TANAKA

IPC: H04W72/02

CPC classification number: H04W72/0453 ,  H04W72/02 ,  H04W72/0406 ,  H04W74/006 ,  H04W74/0833 ,  H04W76/14 ,  H04W84/042

Abstract: A radio communication apparatus to perform communication with another radio communication apparatus by using a plurality of pairs of a downlink frequency band and an uplink frequency band, the apparatus includes: a receiving unit configured to receive a control message by using a downlink frequency band of a first pair among downlink frequency bands of the pairs during a random access procedure to said another radio communication apparatus, the control message including identification information indicating use of an uplink frequency band of a second pair different from the first pair, the downlink frequency band of the first pair being monitored for control messages by the radio communication apparatus; and a control unit configured to control the radio communication apparatus to perform data communication with said another radio communication apparatus by using the uplink frequency band of the second pair indicated by the identification information included in the control message.

Abstract translation: 一种无线电通信装置，通过使用多个下行链路频带和上行链路频带来与另一无线电通信装置进行通信，所述装置包括：接收单元，被配置为通过使用下行链路频带 在对所述另一无线电通信装置的随机接入过程期间，所述对的下行链路频带中的第一对，所述控制消息包括指示使用与所述第一对不同的第二对的上行链路频带的识别信息，所述第二对的下行链路频带 第一对由无线电通信装置监视控制消息; 以及控制单元，被配置为通过使用由包括在控制消息中的识别信息指示的第二对的上行链路频带来控制无线电通信装置与所述另一无线电通信装置进行数据通信。