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48 条记录 (耗时 0.024 秒)

    Wireless communication device and wireless communication method
    3.
    发明授权
    Wireless communication device and wireless communication method 有权

    公开(公告)号：US10681635B2

    公开(公告)日：2020-06-09

    申请号：US16388072

    申请日：2019-04-18

    申请人： Sun Patent Trust

    发明人： Atsushi Sumasu ,  Daichi Imamura ,  Ayako Horiuchi ,  Yasuaki Yuda

    IPC分类号： H04W72/00 ,  H04W52/02 ,  H04B17/309 ,  H04L5/00 ,  H04L27/26 ,  H04L12/18 ,  H04J11/00 ,  H04L27/12 ,  H04W24/08

    摘要： The transmission of a reference signal, such as a CSI-RS, is enabled while maintaining a power saving effect when performing inter-cell cooperative transmission/reception or the like in a plurality of cells. In order to realize inter-cell cooperative transmission/reception, a CSI-RS which is used for estimating the state of a spatial propagation path of a communication line is generated by a CSI-RS generation unit, and the CSI-RS is disposed in a predetermined subframe by a disposition unit and transmitted. At this time, when a frame has ten subframes #0 to #9, the CSI-RS is disposed in the subframes #4 and #9, which are subframes excluding the subframes #0 and #5 incapable of transmitting a CSI-RS and are subframes other than subframes capable of acting as MBSFN subframes when discontinuous communication (Extended Cell DTX) is performed so as to achieve power saving, and transmitted.

    Wireless communication apparatus and wireless communication method
    4.
    发明授权
    Wireless communication apparatus and wireless communication method 有权

    公开(公告)号：US10257810B2

    公开(公告)日：2019-04-09

    申请号：US15949832

    申请日：2018-04-10

    申请人： Sun Patent Trust

    发明人： Masayuki Hoshino ,  Akihiko Nishio ,  Seigo Nakao ,  Daichi Imamura ,  Yasuaki Yuda

    IPC分类号： H04W72/04 ,  H04W24/10 ,  H04W72/12 ,  H04B17/24 ,  H04B7/06 ,  H04B17/00 ,  H04L1/00 ,  H04L5/00 ,  H04L1/16 ,  H04W88/02

    摘要： To suppress concentration of channel quality information requests and reports in a case of discontinuously transmitting reference signals at specific resources in a time domain, and thereby preventing degradation in throughput. A transmission apparatus transmits an instruction of CSI request distributed for each reception apparatus in a subframe concurrently with or earlier than a reference signal CSI-RS to each of reception apparatuses. Each of the reception apparatuses detects the CSI request from the transmission apparatus and calculates CSI from a channel estimation value of CSI-RS received thereafter. Then, the reception apparatus identifies CSI report subframe of the own apparatus from CSI report interval information of a given time interval notified in advance, the subframe in which the CSI request is detected and transmission timing of CSI-RS, and transmits a feedback signal including CSI report value by using PUSCH at the timing of the CSI report subframe.

    Wireless communication device and wireless communication method
    5.
    发明授权
    Wireless communication device and wireless communication method 有权

    公开(公告)号：US10028219B2

    公开(公告)日：2018-07-17

    申请号：US15665892

    申请日：2017-08-01

    申请人： Sun Patent Trust

    发明人： Atsushi Sumasu ,  Daichi Imamura ,  Ayako Horiuchi ,  Yasuaki Yuda

    IPC分类号： H04W80/04 ,  H04W52/02 ,  H04B17/309 ,  H04L5/00 ,  H04L27/26 ,  H04L12/18 ,  H04J11/00 ,  H04L27/12 ,  H04W24/08 ,  H04W72/00

    摘要： The transmission of a reference signal, such as a CSI-RS, is enabled while maintaining a power saving effect when performing inter-cell cooperative transmission/reception or the like in a plurality of cells. In order to realize inter-cell cooperative transmission/reception, a CSI-RS which is used for estimating the state of a spatial propagation path of a communication line is generated by a CSI-RS generation unit, and the CSI-RS is disposed in a predetermined subframe by a disposition unit and transmitted. At this time, when a frame has ten subframes #0 to #9, the CSI-RS is disposed in the subframes #4 and #9, which are subframes excluding the subframes #0 and #5 incapable of transmitting a CSI-RS and are subframes other than subframes capable of acting as MBSFN subframes when discontinuous communication (Extended Cell DTX) is performed so as to achieve power saving, and transmitted.

    Wireless communication device and wireless communication method
    9.
    发明授权
    Wireless communication device and wireless communication method 有权

    公开(公告)号：US11523337B2

    公开(公告)日：2022-12-06

    申请号：US16860451

    申请日：2020-04-28

    申请人： Sun Patent Trust

    发明人： Atsushi Sumasu ,  Daichi Imamura ,  Ayako Horiuchi ,  Yasuaki Yuda

    IPC分类号： H04W52/02 ,  H04B17/309 ,  H04L5/00 ,  H04L12/18 ,  H04J11/00 ,  H04L27/12 ,  H04W24/08 ,  H04W72/00

    摘要： The transmission of a reference signal, such as a CSI-RS, is enabled while maintaining a power saving effect when performing inter-cell cooperative transmission/reception or the like in a plurality of cells. In order to realize inter-cell cooperative transmission/reception, a CSI-RS which is used for estimating the state of a spatial propagation path of a communication line is generated by a CSI-RS generation unit, and the CSI-RS is disposed in a predetermined subframe by a disposition unit and transmitted. At this time, when a frame has ten subframes #0 to #9, the CSI-RS is disposed in the subframes #4 and #9, which are subframes excluding the subframes #0 and #5 incapable of transmitting a CSI-RS and are subframes other than subframes capable of acting as MBSFN subframes when discontinuous communication (Extended Cell DTX) is performed so as to achieve power saving, and transmitted.

    RADIO COMMUNICATION TERMINAL AND RADIO COMMUNICATION METHOD
    10.
    发明申请
    RADIO COMMUNICATION TERMINAL AND RADIO COMMUNICATION METHOD 有权

    公开(公告)号：US20220338166A1

    公开(公告)日：2022-10-20

    申请号：US17856548

    申请日：2022-07-01

    申请人： Sun Patent Trust

    发明人： Yasuaki Yuda ,  Seigo Nakao ,  Ayako Horiuchi ,  Akihiko Nishio ,  Daichi Imamura ,  Kenichi Miyoshi

    IPC分类号： H04W72/00 ,  H04W24/10 ,  H04W24/08 ,  H04L5/00 ,  H04W72/04 ,  H04W72/08 ,  H04B17/318 ,  H04B17/345

    摘要： Provided is a radio communication terminal which is capable of measuring quality in communication with a handover destination with high accuracy. The radio communication terminal is capable of communicating with a base station or a relay node, and includes: a receiver which receives control information including information relating to measurement of measuring quality of a neighbor cell; an extractor which extracts information on a subframe where the measurement should be performed, which is a subframe where only transmission of a signal from the relay node connected to the base station is performed, from the information relating to the measurement; a measurement section which performs the measurement, on a subframe basis, based on the extracted information on the subframe where the measurement should be performed; and a transmitter which transmits a result of the measurement to the base station or the relay node.