公开(公告)号：US12004242B2

公开(公告)日：2024-06-04

申请号：US17986387

申请日：2022-11-14

Applicant: FUJITSU LIMITED

Inventor： Yulong Shi ,  Meiyi Jia ,  Hua Zhou

IPC: H04W4/00 ,  H04L1/1607 ,  H04W4/021 ,  H04W28/06 ,  H04W76/11 ,  H04W76/27 ,  H04W80/08

CPC classification number: H04W76/11 ,  H04L1/1614 ,  H04W4/021 ,  H04W28/06 ,  H04W76/27 ,  H04W80/08

Abstract: A system information indication method and apparatus and a communication system. In the embodiments of this disclosure, by indicating a correspondence between an area related ID or a system information related index and system information, and/or notifying information on a change of the area related ID or system information related index, a case may be avoided where a UE needs still to obtain system information from a network side when system information of a current cell is stored, thereby efficiently lowering power consumption of the UE in acquiring the system information.

公开(公告)号：US11902192B2

公开(公告)日：2024-02-13

申请号：US17106749

申请日：2020-11-30

Applicant: FUJITSU LIMITED

Inventor： Meiyi Jia ,  Qinyan Jiang ,  Xin Wang

IPC: H04L5/00 ,  H04B7/06 ,  H04L1/18 ,  H04W52/36 ,  H04W74/08

CPC classification number: H04L5/0048 ,  H04B7/0626 ,  H04L1/18 ,  H04W52/367 ,  H04W74/0833

Abstract: A method and apparatus for determining power, in which whether to increase target received power is determined according to a change of either of a selected SSB and a selected CSI-RS. Hence, the selected CSI-RS is taken into account, and power is increased as necessary and useless retransmission is avoided, thereby increasing the success rate of random access and reducing power consumption of the UE.

公开(公告)号：US11785557B2

公开(公告)日：2023-10-10

申请号：US17724067

申请日：2022-04-19

Applicant: FUJITSU LIMITED

Inventor： Qinyan Jiang ,  Xin Wang ,  Meiyi Jia

IPC: H04W76/27 ,  H04W52/32 ,  H04W52/24 ,  H04W56/00 ,  H04W72/044 ,  H04W74/08 ,  H04W52/10

CPC classification number: H04W52/322 ,  H04W52/10 ,  H04W52/242 ,  H04W56/001 ,  H04W72/0473 ,  H04W74/08 ,  H04W74/0833 ,  H04W76/27

Abstract: A random access power control apparatus and method and a communication system. The random access power control apparatus includes: a first calculating unit configured to, by using a pathloss estimated based on an synchronization signal/physical broadcast channel block and/or a channel state information reference signal (CSI-RS) currently selected by a UE, calculate transmission power used by the UE in transmitting random access preambles. Hence, the UE may be adapted to UE random access procedures in such complex scenarios as multiple beams.

公开(公告)号：US11723114B2

公开(公告)日：2023-08-08

申请号：US17377649

申请日：2021-07-16

Applicant: FUJITSU LIMITED

Inventor： Yulong Shi ,  Meiyi Jia ,  Xin Wang

IPC: H04W80/08 ,  H04L1/1607 ,  H04W28/06 ,  H04W76/15 ,  H04W4/70 ,  H04L5/00 ,  H04L1/18 ,  H04L1/1867

CPC classification number: H04W80/08 ,  H04L1/1614 ,  H04L1/18 ,  H04L1/189 ,  H04L5/0098 ,  H04W4/70 ,  H04W28/065 ,  H04W76/15

Abstract: A command indication method and apparatus and information interaction method and apparatus. The command indication method includes: transmitting to a user equipment (UE), a command for activating or deactivating duplication transmission by using a bitmap field, to activate or deactivate duplication transmission of one or more packet data convergence protocol entities or radio bearers in the UE. Hence, activation or deactivation may be performed on the duplication transmission mode of one or more PDCP entities in the user equipment.

公开(公告)号：US11533763B2

公开(公告)日：2022-12-20

申请号：US16571856

申请日：2019-09-16

Applicant: FUJITSU LIMITED

Inventor： Yulong Shi ,  Meiyi Jia ,  Hua Zhou

IPC: H04W4/00 ,  H04W76/11 ,  H04W4/021 ,  H04W28/06 ,  H04L1/16 ,  H04W80/08 ,  H04W76/27

Abstract: A system information indication method and apparatus and a communication system. In the embodiments of this disclosure, by indicating a correspondence between an area related ID or a system information related index and system information, and/or notifying information on a change of the area related ID or system information related index, a case may be avoided where a UE needs still to obtain system information from a network side when system information of a current cell is stored, thereby efficiently lowering power consumption of the UE in acquiring the system information.

公开(公告)号：US11252629B2

公开(公告)日：2022-02-15

申请号：US16571862

申请日：2019-09-16

Applicant: FUJITSU LIMITED

Inventor： Meiyi Jia ,  Yulong Shi ,  Hua Zhou

IPC: H04W36/30 ,  H04W36/00 ,  H04W80/02 ,  H04W76/27 ,  H04W76/19

Abstract: A method and apparatus for recovering network connection and a communication system. In a case where radio link failure occurs in a master base station and a signaling radio bearer of a secondary base station is still available, or a physical layer issue or random access issue occurs in a primary cell but a secondary cell is still available, by transmitting the information on the failure of the master base station and/or the primary cell or autonomously recovering the master base station and/or the primary cell by a UE, the cell or base station where the radio link failure occurs may be quickly changed, connection with the network side may be recovered, and data loss may be reduced.

公开(公告)号：US10750543B2

公开(公告)日：2020-08-18

申请号：US16161655

申请日：2018-10-16

Applicant: FUJITSU LIMITED

Inventor： Yulong Shi ,  Lianhai Wu ,  Meiyi Jia

IPC: H04W74/08 ,  H04W76/11 ,  H04W72/04 ,  H04W80/02

Abstract: An apparatus for transmitting a random access response and a communication system, configured in a base station, includes: a determining unit configured to determine a coverage enhancement level to which a user equipment (UE) transmitting a preamble belongs according to a position of a time-frequency resource of the detected preamble; a calculating unit configured to, according to a coverage enhancement level identity corresponding to the UE, calculate a random access wireless network temporary identity (RA-RNTI) used by the UE; and a transmitting unit configured to transmit a random access response (RAR) of the UE, the RAR being scrambled by the RA-RNTI of the UE.

公开(公告)号：US12200690B2

公开(公告)日：2025-01-14

申请号：US17573690

申请日：2022-01-12

Applicant: FUJITSU LIMITED

Inventor： Qinyan Jiang ,  Lei Zhang ,  Meiyi Jia

IPC: H04W72/12 ,  H04L5/00 ,  H04W72/04 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/1268

Abstract: Methods and apparatuses for transmitting and receiving an uplink signal. The method includes: receiving first indication information by a terminal equipment, the first indication information being used to indicate at least one semi-statically configured or semi-persistently scheduled time-frequency resource; receiving physical layer signaling, the physical layer signaling being used to indicate a first starting position within a time domain range of one or more time-frequency resource(s) in the at least one time-frequency resource; and transmitting an uplink signal starting from the first starting position on the one or more time-frequency resource(s).

公开(公告)号：US12004170B2

公开(公告)日：2024-06-04

申请号：US17241325

申请日：2021-04-27

Applicant: FUJITSU LIMITED

Inventor： Guoyu Zhang ,  Qinyan Jiang ,  Meiyi Jia ,  Lei Zhang ,  Xin Wang

IPC: H04W72/23 ,  H04L5/00 ,  H04W56/00

CPC classification number: H04W72/23 ,  H04L5/0005 ,  H04W56/0015

Abstract: A signal transmission method and apparatus, a signal reception method and apparatus and a communication system. The signal transmission apparatus is provided in a network device and includes: a transmitting unit configured to transmit indication information indicating that one information block of at least one information block transmitted by the network device within a time interval is transmitted at one candidate resource in at least two candidate resources within the time interval. The transmission resources of the information blocks are indicated by the indication information, hence, even though the default correspondence between the information block indices and the transmission resources is to be changed, the transmission resources to which the information blocks correspond may be determined, and the terminal equipment is facilitated in downlink synchronization.

公开(公告)号：US11997519B2

公开(公告)日：2024-05-28

申请号：US16922767

申请日：2020-07-07

Applicant: FUJITSU LIMITED

Inventor： Meiyi Jia ,  Lei Zhang

IPC: H04W24/10 ,  H04W8/24 ,  H04W24/08 ,  H04W56/00 ,  H04W72/23

CPC classification number: H04W24/10 ,  H04W8/245 ,  H04W24/08 ,  H04W56/001 ,  H04W72/23

Abstract: A method and apparatus for receiving and transmitting configuration information and a communication system. The method includes: receiving, by a terminal device, first configuration information used for radio link monitoring transmitted by a network device, the first configuration information at least including threshold configuration of the radio link monitoring and/or resource configuration used for the radio link monitoring. Hence, not only introduction of beams may be supported and different services having different link quality demands may be supported, but also flexibility and accuracy of configuration of radio link monitoring may be improved.