公开(公告)号：US20230308935A1

公开(公告)日：2023-09-28

申请号：US17626580

申请日：2021-08-26

Applicant: NEC Corporation

Inventor： Yuhua CHEN ,  Jagdeep Ahluwalia SINGH

IPC: H04W28/02 ,  H04W16/14

CPC classification number: H04W28/0268 ,  H04W16/14

Abstract: A communication system is disclosed in which data is transmitted using unlicensed spectrum by employing a channel access procedure based on a channel access priority class (CAPC). In order to apply the appropriate CAPC for each transmission in accordance with the actual data flow(s) being multiplexed into the transmission, the CAPC information of each data packet is carried together with the packet down through the user plane protocol.

公开(公告)号：US20200280871A1

公开(公告)日：2020-09-03

申请号：US16650198

申请日：2018-09-25

Applicant: NEC CORPORATION

Inventor： Chadi KHIRALLAH ,  Yuhua CHEN ,  Alberto SUAREZ ,  Neeraj GUPTA ,  Robert ARNOTT

IPC: H04W28/02 ,  H04W24/10

Abstract: A method performed by a user equipment in a communication system is disclosed in which the user equipment communicates data with a base station using at least one data radio bearer (DRB). The data is communicated using a plurality of data flows that are mapped to a single DRB. Each data flow is configured to have a respective set of quality of service (QoS) characteristics specific to that data flow. The user equipment measures quality of experience (QoE) parameters for the data flows and reports QoE information to the base station based on the measurement of the QoE parameters.

公开(公告)号：US20200014474A1

公开(公告)日：2020-01-09

申请号：US16483221

申请日：2018-01-29

Applicant: NEC Corporation

Inventor： Chadi KHIRALLAH ,  Yuhua CHEN ,  Yassin Aden AWAD ,  Alberto SUAREZ ,  Robert ARNOTT

IPC: H04B17/309 ,  H04W24/10 ,  H04B7/06

Abstract: A method, performed by a communication device, comprising a) measuring a respective beam quality for each of a plurality of beams of a cell, b) identifying, within said plurality of beams, a first group of beams comprising a number, N, of beams, c) selecting, from within said first group of beams, a second group of beams comprising a number, M, of beams, and d) deriving a cell quality for the cell based on the measured beam qualities for the M beams of the second group.

公开(公告)号：US20190082349A1

公开(公告)日：2019-03-14

申请号：US16125914

申请日：2018-09-10

Applicant: NEC Corporation

Inventor： Yuhua CHEN ,  Sadafuku HAYASHI

IPC: H04W28/02 ,  H04L12/891 ,  H04W28/22 ,  H04W28/12 ,  H04W76/15 ,  H04W92/20 ,  H04W84/04 ,  H04W28/08

Abstract: A communication system is disclosed, in which a mobile telephone has a control-plane connection to a first base station and communicates user data using at least one communication bearer provided via a second base station. The base stations are configured to exchange information relating to the data rate required for the mobile telephone via the second base station. The first base station derives, based on the exchanged information, an aggregated maximum bit rate (AMBR) parameter specific to the second base station and provides the derived AMBR parameter to the second base station for use in data rate enforcement for the mobile telephone's communications via the second base station.

公开(公告)号：US20180035436A1

公开(公告)日：2018-02-01

申请号：US15543294

申请日：2016-01-13

Applicant: NEC Corporation

Inventor： Vivek SHARMA ,  Yuhua CHEN

IPC: H04W72/08

CPC classification number: H04W72/085 ,  H04W16/14 ,  H04W72/1231 ,  H04W76/15 ,  H04W84/042 ,  H04W84/12 ,  H04W88/06

Abstract: A communication system is described in which a communication apparatus configured provides a first communication path to a user communication device to using a first radio resource and another communication apparatus provides a second communication path to the user communication device to using a second radio resource, different from the first radio resource. The communication apparatus controls flow of user data via the first and second communication paths based on information which is received from the other communication apparatus and which indicates availability of the second radio resource for transmission of the user data.

公开(公告)号：US20170295570A1

公开(公告)日：2017-10-12

申请号：US15512596

申请日：2015-09-15

Applicant: NEC Corporation

Inventor： Yassin Aden AWAD ,  Yuhua CHEN ,  Vivek SHARMA

IPC: H04W72/04 ,  H04W4/00

Abstract: A communication system is described in which machine-type communication devices having a reduced bandwidth can be allocated physical uplink control channel resources that fall within that reduced bandwidth whilst other, legacy, devices can continue to use physical uplink control channel resources that do not fall within that reduced bandwidth.

公开(公告)号：US20160374006A1

公开(公告)日：2016-12-22

申请号：US14898817

申请日：2014-07-08

Applicant: NEC CORPORATION

Inventor： Yuhua CHEN

IPC: H04W48/08 ,  H04W74/00 ,  H04W74/08 ,  H04W76/02 ,  H04W48/20

CPC classification number: H04W48/08 ,  H04W16/18 ,  H04W24/08 ,  H04W48/20 ,  H04W74/006 ,  H04W74/0833 ,  H04W76/18 ,  H04W84/042

Abstract: A communication system is disclosed in which a base station operates a cell in a region where connection attempts by a communication device to that cell are at risk of failure. The communication device selects the cell when in the region and attempts to initiate a connection with the base station via the cell. The communication device identifies consecutive failures in respective attempts to initiate the connection, and reports the occurrence of consecutive failures to the communication system at a reporting opportunity.

Abstract translation: 公开了一种通信系统，其中基站在通信设备对该小区的连接尝试处于故障风险的区域中操作小区。 通信设备在该区域中选择该小区，并尝试通过该小区发起与该基站的连接。 通信设备在各自尝试发起连接的情况下识别连续的故障，并且在报告机会上向通信系统报告连续故障的发生。

公开(公告)号：US20250048246A1

公开(公告)日：2025-02-06

申请号：US18718101

申请日：2022-12-02

Applicant: NEC CORPORATION

Inventor： Yuhua CHEN

IPC: H04W48/20 ,  H04W60/04 ,  H04W84/06

Abstract: A communication system is disclosed in which a user equipment (UE) receives an indication that a change of tracking area identifiers has occurred with respect to a current cell of the UE. The UE determines whether to obtain a tracking area identifier list associated with the cell based on the indication and at least one of: information identifying whether the cell is configurable to associate with a plurality of tracking areas (e.g. when the cell employs soft tracking area change); a mobility parameter associated with the UE; and a time parameter indicating a time elapsed since the UE obtained the tracking area identifier list from system information signalling or since the UE reselected to the cell.

公开(公告)号：US20240373363A1

公开(公告)日：2024-11-07

申请号：US18291609

申请日：2022-07-29

Applicant: NEC Corporation

Inventor： Yuhua CHEN ,  Caroline Liang ,  Neeraj Gupta

IPC: H04W52/02 ,  H04W84/06

Abstract: A method of a user equipment (UE) for communicating via a non-terrestrial network is disclosed. The method comprises determining whether the UE is in coverage of the non-terrestrial network or out-of-coverage of the non-terrestrial network and initiating a procedure for power saving of the UE, based on the determining.

公开(公告)号：US20230171022A1

公开(公告)日：2023-06-01

申请号：US18070676

申请日：2022-11-29

Applicant: NEC Corporation

Inventor： Yuhua CHEN ,  Yassin Aden AWAD ,  Robert ARNOTT

IPC: H04L1/00 ,  H04W48/10 ,  H04W92/10 ,  H04L1/08 ,  H04W76/14 ,  H04W48/12

CPC classification number: H04L1/0038 ,  H04W48/10 ,  H04W92/10 ,  H04L1/0072 ,  H04L1/0045 ,  H04L1/08 ,  H04W76/14 ,  H04W48/12 ,  H04W72/23

Abstract: A communication system is described in which system information is transmitted to communication devices, by a communication apparatus of the system, in system information blocks, in accordance with a system information block transmission scheme. The communication apparatus configures at least one system information block to include control information indicating how the system information blocks will be transmitted.