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公开(公告)号：US20220286922A1
公开(公告)日：2022-09-08
申请号：US17628628
申请日：2020-10-02
Applicant: NEC Corporation
Inventor： Yuhua CHEN , Sadafuku HAYASHI , Jagdeep Ahluwalia SINGH , Chadi KHIRALLAH
Abstract: In one aspect, a method performed by a base station in a Non-Public Network includes: operating a closed access group (CAG) cell; establishing a communication connection with a user equipment (UE) in the CAG cell, wherein the CAG cell is associated with a CAG having an associated CAG identifier; suspending the communication connection; receiving, from a further base station, a first message indicating that the UE has requested resumption of the communication connection in a CAG cell operated by the further base station, the first message including a CAG identifier of a CAG which the CAG cell operated by the further base station is associated with; performing CAG membership verification for the CAG identified by the CAG identifier in the first message; and sending, to the further base station, a second message indicating a result of the CAG membership verification.
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公开(公告)号：US20220095218A1
公开(公告)日：2022-03-24
申请号：US17541352
申请日：2021-12-03
Applicant: NEC Corporation
Inventor： Yuhua CHEN , Alberto Suarez
Abstract: A cellular communication system is disclosed in which a base station operates a cell which has a supplementary uplink portion (e.g. on a different frequency and/or using a different technology). The base station broadcasts an offset for user equipment (UE) in its coverage area to assist the UE performing cell selection. Specifically, the UE determines, based on measurements for the cell, the offset, and capability of the UE to communicate using the supplementary uplink portion, whether the cell of the base station is an appropriate candidate for cell selection such that: if the UE is capable of communicating using the supplementary uplink portion then the UE performs cell (re)selection based on the offset; and if the UE is not capable of communicating using the supplementary uplink portion then the UE disregards the offset in its cell (re)selection.
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33.发明申请公开(公告)号：US20210377909A1
公开(公告)日：2021-12-02
申请号：US17399689
申请日：2021-08-11
Applicant: NEC CORPORATION
Inventor： Yuhua CHEN , Chadi KHIRALLAH , Neeraj GUPTA
Abstract: A communication system is disclosed in which a base station receives, from at least one further base station, information identifying at least one respective tracking area associated with at least one cell of each further base station. The base station also receives, from a core network, information identifying a registration area for a user equipment (UE). The base station defines, based on the received information identifying at least one respective tracking area and the received information identifying a registration area, a radio access network (RAN) based notification area for the UE.
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公开(公告)号：US20200280913A1
公开(公告)日：2020-09-03
申请号：US16649848
申请日：2018-09-25
Applicant: NEC CORPORATION
Inventor： Yuhua CHEN , Alberto SUAREZ
Abstract: A cellular communication system is disclosed in which a base station operates a cell which has a supplementary uplink portion (e.g. on a different frequency and/or using a different technology). The base station broadcasts an offset for user equipment (UE) in its coverage area to assist the UE performing cell selection. Specifically, the UE determines; based on measurements for the cell, the offset, and capability of the UE to communicate using the supplementary uplink portion, whether the cell of the base station is an appropriate candidate for cell selection such that: if the UE is capable of communicating using the supplementary uplink portion then the UE performs cell (re)selection based on the offset; and if the UE is not capable of communicating using the supplementary uplink portion then the UE disregards the offset in its cell (re)selection.
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公开(公告)号：US20200021452A1
公开(公告)日：2020-01-16
申请号：US16578550
申请日：2019-09-23
Applicant: NEC Corporation
Inventor： Vivek SHARMA , Yuhua CHEN
Abstract: A system is provided in which a user device communicates control data with a first base station and communicates user data with a second base station. The user device receives, from the first base station, configuration data specific to the first base station and configuration data specific to the second base station for configuring the user device to handle in-device coexistence interference. When the user device detects interference, it identifies the base station to which the interference relates, and controls the operating of its transceiver circuitry: i) using the first base station specific configuration data if it identifies that the interference is related to the first base station; and ii) using the second base station specific configuration data if it identifies that the interference is related to the second base station.
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Patent Agency Ranking
公开(公告)号：US20180115921A1
公开(公告)日：2018-04-26
申请号：US15500218
申请日：2015-07-21
Applicant: NEC Corporation
Inventor： Yuhua CHEN , Sadafuku HAYASHI
CPC classification number: H04W28/0257 , H04L47/41 , H04W28/0236 , H04W28/0278 , H04W28/08 , H04W28/12 , H04W28/22 , H04W76/15 , H04W84/045 , H04W92/20
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.
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公开(公告)号：US20180092062A1
公开(公告)日：2018-03-29
申请号：US15564490
申请日：2016-04-08
Applicant: NEC Corporation
Inventor： Yuhua CHEN
CPC classification number: H04W68/02 , H04W4/70 , H04W72/042 , H04W72/1289
Abstract: A communication system is disclosed in which a base station receives, from a core network entity, a paging request for paging an MTC device. The base station determines a paging occasion for sending to said. MTC device paging related information, wherein the paging occasion is defined such that it identifies a plurality of subframes in which the paging related information can be sent and repeated. The base station sends (and repeats, as appropriate) the paging related information in the plurality of subframes identified by the paging occasion.
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公开(公告)号：US20250016596A1
公开(公告)日：2025-01-09
申请号：US18888308
申请日：2024-09-18
Applicant: NEC Corporation
Inventor： Yuhua CHEN , Sivapathalingham SIVAVAKEESAR
IPC: H04W24/10 , H04B7/06 , H04L1/00 , H04L5/00 , H04W16/14 , H04W16/28 , H04W84/04 , H04W88/02 , H04W88/08
Abstract: A communication system is disclosed in which a serving base station configures a mobile device for performing measurements with respect to signals transmitted by a neighbour base station. The serving base station obtains a measurement report from the mobile device, the measurement report comprising a result of signal measurements in association with information identifying a beamformed region in which a signal to which said result of said signal measurements relates was transmitted.
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公开(公告)号：US20240172156A1
公开(公告)日：2024-05-23
申请号：US18284384
申请日：2022-03-17
Applicant: NEC Corporation
Inventor： Maxime GRAU , Neeraj GUPTA , Yuhua CHEN
CPC classification number: H04W56/0045 , H04B7/1853 , H04W56/001
Abstract: A communication system is disclosed in which a user equipment (UE) communicate with a base station via a non-terrestrial network. The UE obtains information identifying a threshold associated with a timing advance value applicable for communications between the UE and the network node via the non-terrestrial network, acquires a timing advance value for said communications with the network node, and determines whether to transmit a timing advance report to the network node based on the timing advance value and the threshold.
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公开(公告)号：US20230413301A1
公开(公告)日：2023-12-21
申请号：US18242033
申请日：2023-09-05
Applicant: NEC CORPORATION
Inventor： Yassin Aden AWAD , Yuhua CHEN , Vivek SHARMA
IPC: H04W72/51 , H04W72/0446 , H04W4/70 , H04W72/21
CPC classification number: H04W72/51 , H04W72/0446 , H04W4/70 , H04W72/21
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.
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