公开(公告)号：US20220060294A1

公开(公告)日：2022-02-24

申请号：US17375928

申请日：2021-07-14

Applicant: NEC Corporation

Inventor： Tansheng LI

IPC: H04L1/20 ,  H04L1/16 ,  H04W28/04

Abstract: In order to appropriately estimate the number of radio frames that fail to be acquired, an estimation apparatus 200 includes: a memory storing instructions; and one or more processors configured to execute the instructions to: acquire a plurality of radio frames transmitted and received through a radio channel; specify key frames, based on time information of the plurality of acquired radio frames; calculate a sum of time lengths of at least a part of the plurality of radio frames being located between two adjacent ones of the key frames; and estimate a number of unacquired radio frames, based on the specified key frames and the calculated sum, the unacquired radio frames being radio frames failing to be acquired.

公开(公告)号：US20200008197A1

公开(公告)日：2020-01-02

申请号：US16337770

申请日：2017-09-26

Applicant: NEC CORPORATION

Inventor： Tansheng LI ,  Yohei HASEGAWA ,  Takeo ONISHI ,  Takahiro NOBUKIYO

IPC: H04W72/04 ,  H04L25/02 ,  H04L5/00 ,  H04L27/26 ,  H04W80/06

Abstract: A communication apparatus is provided with a communication part, a response index calculation part, and a determination part. The communication part is configured to be capable of transmitting a packet to the terminal, via frequency carrier(s) of a base station to which the terminal is connected. The response index calculation part calculates a response index of the packet. The determination part determines the number of frequency carrier(s) used by the terminal in accordance with the result of the response index calculation by the response index calculation part. Determining a number of frequency carriers being used includes determining the number of LTE carrier waves being used by the terminal.

公开(公告)号：US20170026862A1

公开(公告)日：2017-01-26

申请号：US15301852

申请日：2015-04-15

Applicant: NEC Corporation

Inventor： Tansheng LI

IPC: H04W24/08 ,  H04W64/00 ,  H04W72/08

CPC classification number: H04W24/08 ,  H04B17/26 ,  H04B17/30 ,  H04B17/318 ,  H04B17/373 ,  H04W52/228 ,  H04W64/00 ,  H04W72/085 ,  H04W88/02

Abstract: An object of the present invention is to provide a wireless communication control method and a device, and a wireless communication apparatus which can control wireless line quality appropriately according to a weather change without adding special equipment.Therefore, in the present invention, a wireless communication control device (100) includes an attenuation amount estimation unit (103) to estimate a future attenuation amount from history of an attenuation amount of radio field intensity to a wireless communicator (10) from another wireless communicator (11), and a control unit (104) to control the wireless communicator (10) based on the estimated attenuation amount.

Abstract translation: 因此，在本发明中，无线通信控制装置（100）包括衰减量估计单元（103），从衰减量估计单元（103），从无线电场强度衰减量的历史估计到来自另一无线电的无线通信器（10）的未来衰减量 通信器（11）和控制单元（104），用于基于估计的衰减量来控制无线通信器（10）。

公开(公告)号：US20240305393A1

公开(公告)日：2024-09-12

申请号：US18281385

申请日：2021-03-17

Applicant: NEC Corporation

Inventor： Tansheng LI ,  Eiji TAKAHASHI ,  Nobuhiko ITOH

IPC: H04B17/391 ,  H04W24/06

CPC classification number: H04B17/3912 ,  H04W24/06

Abstract: A model building apparatus includes: an acquisition unit that obtains, from a first wireless station, time-series data of received power of wireless communication between the first wireless station and a second wireless station; a generation unit that generates input data including change data about a degree of a change in the received power per unit time, based on the time-series data; and a building unit that builds the estimation model for estimating the root cause of degradation from the input data, by machine learning using the input data.

公开(公告)号：US20220416970A1

公开(公告)日：2022-12-29

申请号：US17780236

申请日：2019-12-13

Applicant: NEC Corporation

Inventor： Tansheng LI

IPC: H04L5/00 ,  H04W72/04

Abstract: In order to improve the accuracy of estimating the use rate of a radio channel, a radio frame estimation apparatus according to an example aspect of the present invention includes a radio frame combination section configured to combine a plurality of radio frame sets monitored by a plurality of radio communication units in an environment where radio communication is performed, and a radio frame estimation section configured to perform estimation about a number of radio frames in the based on the plurality of radio frame sets and a combined radio frame set obtained by combining the plurality of radio frame sets.

公开(公告)号：US20210377161A1

公开(公告)日：2021-12-02

申请号：US17264049

申请日：2019-08-01

Applicant: NEC Corporation

Inventor： Tansheng LI ,  Takeo ONISHI

IPC: H04L12/725 ,  H04L12/741

Abstract: A communication device is provided with: a feature information generation unit that receives a packet transmitted from a piece of equipment that performs packet communication, and consequently generates information representing a feature of the packet; a classification unit that classifies the packet into a packet group on the basis of the information representing the feature and prescribed classification criteria; an extraction unit that extracts one or more pieces of character information from the packet on the basis of prescribed extraction criteria; and an identification information generation unit that generates identification information capable of identifying the piece of equipment that transmitted the packet, such generation executed on the basis of, from among pieces of character information extracted from one or more packets belonging to the same packet group, character information in which the number of patterns pertaining to the structure of the character information satisfies a condition.