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公开(公告)号：US20250168721A1
公开(公告)日：2025-05-22
申请号：US18729620
申请日：2022-01-26
Applicant: NEC CORPORATION
Abstract: Embodiments of the present disclosure relate to methods, devices and computer readable media for communication. A terminal device receives, from a first network device, a conditional reconfiguration for a set of candidate cells, the conditional reconfiguration comprising information indicating that a subsequent conditional cell change is enabled for at least one candidate cell in the set of candidate cells. If a cell change or addition is performed based on the conditional reconfiguration, the terminal device maintains at least a portion of the conditional reconfiguration for use in the subsequent conditional cell change. In this way, a procedure of a subsequent conditional cell change may be enabled.
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公开(公告)号：US20240334541A1
公开(公告)日：2024-10-03
申请号：US18575549
申请日：2021-07-02
Applicant: NEC CORPORATION
Abstract: Example embodiments of the present disclosure relate to small data transmission. Although the present disclosure, the stored data is not taken into consideration when calculating data volume for small data transmission, and thus correct data volume value can be obtained thereby. Further, the terminal device may obtain information about volume of new data before calculating data volume for small data transmission. In addition, during small data transmission, the reported buffer status report may indicate an actual state of the remaining small data transmission data. Further, when the terminal device fails to transmit small data transmission data via 4-step random access procedure, the terminal device may fall back to 4-step random access small data transmission properly.
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3.发明公开公开(公告)号：US20240298227A1
公开(公告)日：2024-09-05
申请号：US18270814
申请日：2021-01-05
Applicant: NEC CORPORATION
CPC classification number: H04W36/00833 , H04W24/10
Abstract: Embodiments of the present disclosure provide a solution for supporting a successful handover report. In a method for communication, a terminal device receives a report configuration from a first network device providing a first cell. The report configuration indicates whether a successful handover report is to be generated for a handover of the terminal device from the first cell to a second cell of a second network device. Then, the terminal device applies the report configuration during performing of the handover. Through the embodiments of the present disclosure, the terminal device may be limited to reporting a successful handover report if the source network device considers the successful handover report as necessary, thereby saving the processing resources and communication resources for the potentially unnecessary successful handover reports.
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公开(公告)号：US20240214862A1
公开(公告)日：2024-06-27
申请号：US18288940
申请日：2021-05-10
Applicant: NEC CORPORATION
CPC classification number: H04W28/0252 , H04W76/27 , H04W76/38
Abstract: Embodiments of the present disclosure relate to methods, devices and computer readable media for communication. A terminal device determines whether a radio link control, RLC, entity re-establishment for a radio bearer is to be performed, the radio bearer being configured with a transmission of data in an inactive state. If it is determined that the RLC entity re-establishment is to be performed, the terminal device re-establishes the RLC entity. After that, the terminal device transmits uplink data in the inactive state on the radio bearer. In this way, an RLC entity re-establishment is able to be handled for radio bearer configured with SDT if the terminal device determines that the RLC entity re-establishment needs to be performed for the SDT, thereby improving performance of the SDT procedure.
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公开(公告)号：US20230262566A1
公开(公告)日：2023-08-17
申请号：US18012552
申请日：2020-06-23
Applicant: NEC CORPORATION
IPC: H04W36/30
CPC classification number: H04W36/305
Abstract: Embodiments of the present disclosure relate to methods, devices and computer readable media for communication. A method of communication comprises determining, at a terminal device, whether a first failure of a first access attempt to a first cell of a first network device occurs, the first network device being a secondary node serving the terminal device, a second network device being a master node serving the terminal device; and in accordance with a determination that the first failure occurs, transmitting at least first information about the first failure to the first network device or the second network device. In this way, a reporting of SCG failure information can be enhanced.
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Patent Agency Ranking
公开(公告)号：US20250133628A1
公开(公告)日：2025-04-24
申请号：US18682307
申请日：2021-08-10
Applicant: NEC CORPORATION
Abstract: Embodiments of the present disclosure relate to methods, devices and computer readable media of communication. A terminal device in a connected state with a first network device determines that a connection is to be established with a second network device, and transmits, to the first network device, an indication that a portion of capability of the terminal device for a first subscriber identity module is to be released for simultaneous connections with the first and second network devices. Thereby, partial capabilities of the terminal device for the first subscriber identity module are released so that the terminal device has spare capabilities for a second subscriber identity module.
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公开(公告)号：US20230284315A1
公开(公告)日：2023-09-07
申请号：US18019380
申请日：2020-09-15
Applicant: NEC CORPORATION
CPC classification number: H04W76/19 , H04W74/0833
Abstract: Embodiments of the present disclosure relate to methods, devices and computer readable media for communication. A method comprises a terminal device determines whether one or more DRBs with uplink data to be transmitted support SDT. If the one or more DRBs support the SDT, the terminal device determines whether the uplink data is to be transmitted in the inactive state. If the uplink data is to be transmitted in the inactive state, the terminal device transmits the uplink data to a first network device in the inactive state. Upon receipt of the uplink data, the first network device transmits to a third network device a request for relocating an anchor for a context of the terminal device, the request comprising a first indication as to whether there is remaining data to be transmitted. In this way, an enhanced mechanism for SDT is achieved and lossless transmission for SDT is attained.
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公开(公告)号：US20250142658A1
公开(公告)日：2025-05-01
申请号：US18834713
申请日：2022-02-11
Applicant: NEC CORPORATION
IPC: H04W76/19 , H04W28/06 , H04W74/0833 , H04W76/18
Abstract: Embodiments of the present disclosure relate to methods, devices and computer readable media for communication. The method comprises if receiving, at a terminal device and from a network device, a connection reject message while the terminal device is performing a first connection resume procedure initiated for small data transmission (SDT); and initiating a second connection resume procedure. In this way, the SDT procedure can be rejected in case of network congestion.
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公开(公告)号：US20240121847A1
公开(公告)日：2024-04-11
申请号：US18276935
申请日：2021-03-31
Applicant: NEC CORPORATION
IPC: H04W76/19
CPC classification number: H04W76/19
Abstract: Embodiments of the present disclosure relate to methods, devices and computer readable media for communication. A terminal device transmits uplink data in an inactive state to a network device, and if a resume of a connection with the network device is to be performed at a cell where the transmission has been performed, the terminal device performs the resume of the connection by at least one of the following: maintaining, in a PDCP re-establishment, a state variable of PDCP entities of UM DRBs or SRBs; or at least one of initiating a PDCP recovery for at least DRBs supporting a transmission in the inactive state or discarding PDCP SDUs and PDCP PDUs for SRBs supporting a transmission in the inactive state. In this way, security during a SDT procedure can be enhanced.
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公开(公告)号：US20240015616A1
公开(公告)日：2024-01-11
申请号：US18035792
申请日：2020-11-20
Applicant: NEC CORPORATION
CPC classification number: H04W36/00837 , H04W76/30 , H04L5/0007
Abstract: Embodiments of the present disclosure relate to methods, devices and computer readable media for communication. A method of communication comprises generating, at a terminal device, information of a scheduling gap of the first network device, the first network device being associated with a first subscriber identity module of the terminal device and the second network device being associated with a second subscriber identity module of the terminal device; and transmitting the information of the scheduling gap to the first network device for requesting a switch from the first network device to a second network device without releasing a radio resource control connection with the first network device. Thereby, only traffic on a part of serving cells of the first network device is interrupted.
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