公开(公告)号：EP4131842A1

公开(公告)日：2023-02-08

申请号：EP22197887.7

申请日：2018-02-12

Applicant: FUJITSU LIMITED

Inventor： SONG, Lei ,  WANG, Xin ,  CHEN, Zhe ,  ZHANG, Lei ,  ZHANG, Guoyu

IPC: H04L5/00 ,  H04B7/04

Abstract: A terminal comprising: a receiver configured to receive a first signal including configuration information; and a processor configured to configure a transmission configuration indication state for a demodulation reference signal port group based on the configuration information, wherein the receiver is further configured to receive a second signal for instructing activation the transmission configuration indication state, and when an offset between a downlink control information and a physical downlink shared channel corresponding the downlink control information is less than a predetermined threshold, the demodulation reference port group of the physical downlink shared channel are configured or predefined with a predetermined transmission configuration indication state.

公开(公告)号：EP4106245A1

公开(公告)日：2022-12-21

申请号：EP20918954.7

申请日：2020-02-13

Applicant: FUJITSU LIMITED

Inventor： CHEN, Zhe ,  SONG, Lei ,  JIANG, Qinyan ,  ZHANG, Lei ,  WANG, Xin

IPC: H04L5/00

Abstract: Embodiments of this disclosure provide a wireless communication method and device and a communication system. The method includes: a terminal equipment receives a downlink data signal at a time unit n, the downlink data signal including activation/deactivation command acting on a secondary cell; and the terminal equipment performs at least one of the following processing: applying corresponding actions not earlier than a time unit n+k+1; applying actions related to a deactivation timer of the secondary cell at the time unit n+k+1; and applying actions related to CSI report after a time unit n+k, the CSI report being related to or corresponding to the activation/deactivation command, and the time unit referring to a time unit corresponding to transmission of an uplink control signal, the uplink control signal carrying HARQ-ACK information corresponding to the downlink data signal.

公开(公告)号：EP4057728A1

公开(公告)日：2022-09-14

申请号：EP19951557.8

申请日：2019-11-07

Applicant: FUJITSU LIMITED

Inventor： CHEN, Zhe ,  ZHANG, Lei ,  SONG, Lei ,  WANG, Xin

IPC: H04W72/04

Abstract: This disclosure provides a wireless communication method and apparatus and a communication system. The wireless communication method includes: a terminal equipment receives configuration information, the configuration information indicating that one or more than one SPS configuration is associated with an SPS configuration set, the one or more than one SPS configuration corresponding to identical priorities or identical HARQ-ACK codebooks.

公开(公告)号：EP3910995A1

公开(公告)日：2021-11-17

申请号：EP19909578.7

申请日：2019-01-09

Applicant: FUJITSU LIMITED

Inventor： CHEN, Zhe ,  ZHANG, Lei ,  WANG, Xin

IPC: H04W24/10

Abstract: Embodiments of this disclosure provide a method and apparatus for indicating a measurement purpose of channel state information (CSI) and a communication system. The method includes: a terminal equipment receives first indication information transmitted by a network device, the first indication information indicating a measurement purpose of a first channel state information (CSI) measurement resource set of the terminal equipment; and the terminal equipment determines the measurement purpose of the first CSI measurement resource set according to the first indication information. According to this disclosure, the network device and the terminal equipment may have a common understanding of a purpose of the same CSI measurement resource, thereby avoiding CSI measurement errors and corresponding transmission failures due to misunderstanding of the network device and the terminal equipment.

公开(公告)号：EP3860295A1

公开(公告)日：2021-08-04

申请号：EP18935975.5

申请日：2018-09-26

Applicant: FUJITSU LIMITED

Inventor： CHEN, Zhe ,  SONG, Lei ,  ZHANG, Lei ,  WANG, Xin

IPC: H04W74/08

Abstract: A signal transmission method, signal reception method and apparatuses thereof. A solution where a terminal equipment transmits an uplink signal by using a spatial domain transmission filter after beam failure recovery is successful is provided, in which reliability of the terminal equipment in transmitting an uplink signal is improved. In addition, the solution has a wide range of applicability, and is not only suitable for scenarios where beam failure occurs in an SpCell, but also in scenarios where beam failure occurs in an SCell. In a multi-carrier scenario, this solution may correctly indicate the spatial domain transmission filter used by the uplink signal of the first cell, and avoid incorrectly indicating the spatial domain transmission filter used by uplink signals of other cells. Furthermore, this solution also accurately stipulates a starting point of the period of time, which avoids unnecessary errors in reception and transmission caused by inconsistent understanding of the period of time by the terminal equipment and the network device.

公开(公告)号：EP3739982A1

公开(公告)日：2020-11-18

申请号：EP18900236.3

申请日：2018-01-11

Applicant: FUJITSU LIMITED

Inventor： CHEN, Zhe ,  WANG, Xin ,  ZHANG, Lei ,  SONG, Lei ,  ZHANG, Guoyu

IPC: H04W72/00

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.