公开(公告)号：US12167397B2

公开(公告)日：2024-12-10

申请号：US18438616

申请日：2024-02-12

Applicant: FUJITSU LIMITED

Inventor： Lei Song ,  Lei Zhang ,  Xin Wang ,  Zhe Chen ,  Guoyu Zhang

IPC: H04W72/20 ,  H04W72/0446 ,  H04W72/56

Abstract: A terminal includes a memory, and processor circuitry coupled to the memory and configured to receive a first signal including first control information at a first time domain resource section according to an assumption that a network device uses a first transmission configuration indication (TCI) state, the first signal being physical downlink control channel (PDCCH), the first control information being downlink control information (DCI), and receive a second signal at a second time domain resource section according to an assumption that the network device uses a second transmission configuration indication state, a starting position of the second time domain resource section being determined according to a reference time domain resource section, the reference time domain resource section being a time domain symbol at a last position in the PDCCH where the DCI is located on a time axis.

公开(公告)号：US12107717B2

公开(公告)日：2024-10-01

申请号：US17481386

申请日：2021-09-22

Applicant: FUJITSU LIMITED

Inventor： Zhe Chen ,  Lei Song ,  Xianjun Yang ,  Lei Zhang ,  Xin Wang

IPC: H04L41/0654 ,  H04W72/1273 ,  H04W72/23 ,  H04W74/00

CPC classification number: H04L41/0654 ,  H04W72/1273 ,  H04W72/23 ,  H04W74/006 ,  H04W74/008

Abstract: A beam failure recovery method and device and a communication system. The device includes: a receiver configured to, after a period of time upon the terminal equipment receive a beam failure recovery (BFR) response and before activation or reconfiguration signaling, monitor and/or receive a downlink signal in a first cell of the terminal equipment according to an antenna quasi-co-located (QCL) parameter identical to a selected reference signal (q_new) or a reference signal (q_new) indicated by a higher layer.

公开(公告)号：US11723004B2

公开(公告)日：2023-08-08

申请号：US17079824

申请日：2020-10-26

Applicant: FUJITSU LIMITED

Inventor： Lei Song ,  Lei Zhang ,  Zhe Chen ,  Xin Wang

IPC: H04W72/0453 ,  H04W72/1273 ,  H04W72/23

CPC classification number: H04W72/0453 ,  H04W72/1273 ,  H04W72/23

Abstract: A configuration method and apparatus for a bandwidth part indicator and a system. The method includes: configuring a multi-TRP or multi-panel operation-related mode by a network device for a terminal equipment; and transmitting configuration information and/or downlink control information by the network device to the terminal equipment, for the terminal equipment to determine an active bandwidth part according to received configuration information and/or according to detected multiple pieces of downlink control information. Hence, in the case where the terminal equipment is configured to be in a multi-transmission point or multi-panel operation-related mode, which bandwidth part is taken as an active bandwidth part by the terminal equipment is explicitly or implicitly indicated via configuration information, and the terminal equipment may determine the active bandwidth part according to the received configuration information and/or downlink control information.

公开(公告)号：US11606781B2

公开(公告)日：2023-03-14

申请号：US17583302

申请日：2022-01-25

Applicant: FUJITSU LIMITED

Inventor： Lei Song ,  Xin Wang

IPC: H04W72/04 ,  H04B1/74 ,  H04W72/08 ,  H04B7/06 ,  H04W24/04 ,  H04W72/044

Abstract: Method and apparatus for configuring a triggering condition of a beam failure event and a communication system. The method includes: a network device configures a UE with one or more control channel monitoring groups, so that when the UE detects that all beams to which a monitoring group corresponds fail in transmission, the UE reports beam failure event of the monitoring group fails in transmission; wherein, each monitoring group corresponds to one or more pieces of downlink control information (DCI). By configuring regarding the triggering conditions of the beam failure events, detection and report of beam failure in more complex scenarios may be supported, such as a scenario where one piece of DCI is transmitted in multiple control resource sets, and a scenario where multiple pieces of DCI are transmitted in one control resource set, etc.

公开(公告)号：US11595100B2

公开(公告)日：2023-02-28

申请号：US16704470

申请日：2019-12-05

Applicant: FUJITSU LIMITED

Inventor： Lei Song ,  Xin Wang ,  Hua Zhou

IPC: H04B7/06 ,  H04W72/04 ,  H04W76/11 ,  H04W76/27

Abstract: An apparatus and method for configuring a transmission resource of a beam failure recovery request, apparatus and method for responding a beam failure recovery request, and a communications system. The apparatus for configuring a transmission resource of a beam failure recovery request includes: a configuring unit configured to transmit configuration information to user equipment, the configuration information being used to configure a transmission resource of a beam failure recovery request related to coordination network equipment. The apparatus for responding a beam failure recovery request includes: a responding unit configured to transmit response information related to a beam failure recovery request of coordination network equipment to user equipment. A case where beam failure occurs in the coordination network equipment may be dealt with efficiently, and normal communications between the network equipment and the user equipment may be ensured.

公开(公告)号：US11882580B2

公开(公告)日：2024-01-23

申请号：US17829502

申请日：2022-06-01

Applicant: FUJITSU LIMITED

Inventor： Lei Song ,  Xin Wang ,  Zhe Chen ,  Lei Zhang ,  Guoyu Zhang

IPC: H04W72/04 ,  H04W72/53 ,  H04W76/27 ,  H04L5/00 ,  H04L5/10 ,  H04W72/0446 ,  H04W80/02 ,  H04W72/23

CPC classification number: H04W72/53 ,  H04L5/0051 ,  H04L5/10 ,  H04W72/0446 ,  H04W72/23 ,  H04W76/27 ,  H04W80/02

Abstract: Methods and apparatuses for receiving and transmitting configuration information and a communication system. The method includes: configuring or predefining one or more transmission configuration indication states by a terminal equipment for one or more demodulation reference signal port groups. Hence, even in scenarios such as multiple TRPs or multiple panels, the receiving device may correctly and punctually receive transmission information transmitted by the transmitting device.

公开(公告)号：US11843437B2

公开(公告)日：2023-12-12

申请号：US17183723

申请日：2021-02-24

Applicant: FUJITSU LIMITED

Inventor： Zhe Chen ,  Lei Song ,  Lei Zhang ,  Xin Wang

IPC: H04B7/06 ,  H04W76/19 ,  H04W76/11 ,  H04W76/27 ,  H04W72/044 ,  H04W74/08 ,  H04W80/02 ,  H04W72/23

CPC classification number: H04B7/0695 ,  H04W72/046 ,  H04W72/0473 ,  H04W72/23 ,  H04W74/0833 ,  H04W76/11 ,  H04W76/19 ,  H04W76/27 ,  H04W80/02

Abstract: A signal transmission method, signal reception method and apparatuses thereof. A signal transmission apparatus. The apparatus includes a transmitter configured to, after a period of time of receiving a downlink signal related to beam failure recovery and before receiving or applying activation signaling or reconfiguration signaling, transmit an uplink signal in a first cell by using a spatial domain transmission filter identical to a spatial domain transmission filter transmitting an uplink signal related to beam failure recovery or receiving a downlink reference signal.

公开(公告)号：US11477657B2

公开(公告)日：2022-10-18

申请号：US16732898

申请日：2020-01-02

Applicant: FUJITSU LIMITED

Inventor： Lei Song ,  Hongchao Li ,  Yi Zhang ,  Hua Zhou

IPC: H04W16/10 ,  H01Q1/24 ,  H01Q21/06 ,  H01Q21/24 ,  H04B7/06 ,  H04B7/0456 ,  H04B7/0413 ,  H04L5/00 ,  H04W88/02 ,  H04W88/08

Abstract: A base station including: a controller configured to configure a plurality of configuration information, each of the plurality of configuration information includes resource configuration information, a number of antenna ports, and power control information; and a transmitter configured to transmit to terminal a control signal including the plurality of configuration information, wherein, the transmitter transmits to terminal an indication information that indicates configuration information to be used for measurement among the plurality of the configuration information.

公开(公告)号：US10999047B2

公开(公告)日：2021-05-04

申请号：US16053464

申请日：2018-08-02

Applicant: FUJITSU LIMITED

Inventor： Weiwei Wang ,  Xin Wang ,  Lei Song

IPC: H04L5/16 ,  H04L5/00 ,  H04L5/14 ,  H04W72/12 ,  H04W72/04

Abstract: A frequency band configuration apparatus and method of a half-duplex system and a communication system. The method includes: determining a half-duplex frequency band, and receiving configuration information of the half-duplex frequency band; and receiving indication information for reconfiguring the half-duplex frequency band transmitted by a network device; the indication information indicates that the half-duplex frequency band is used for both uplink transmission and downlink transmission. Hence, it is supported that the half-duplex frequency band can be configured as both an uplink frequency band and a downlink frequency band at the same time, a cell capacity is not limited too much, and cases where uplink and downlink capacities are relatively large can be well supported.

公开(公告)号：US11310675B2

公开(公告)日：2022-04-19

申请号：US16896639

申请日：2020-06-09

Applicant: FUJITSU LIMITED

Inventor： Zhe Chen ,  Xin Wang ,  Lei Zhang ,  Lei Song ,  Guoyu Zhang

IPC: H04W16/28 ,  H04B7/06 ,  H04W36/08 ,  H04W56/00 ,  H04W72/00 ,  H04W72/04

Abstract: Uplink signal transmission method, uplink signal reception method and apparatus thereof and a system. The uplink signal transmission method includes: when a network device configures first information associated with a spatial relation for an uplink signal but the special relation for the uplink signal is not effective, a terminal equipment transmits an uplink signal by using a spatial domain transmission filter the same as that of a transmitted signal or a received signal or using a spatial domain transmission filter associated with a predetermined item in the first information. With this method, the terminal equipment may transmit an uplink signal by using a suitable spatial domain transmission filter in a case where an uplink beam is not determined according to the configuration of the network device.