IP Library Granted Patent US 12,316,415
Granted Patent B2
US 12,316,415 · App. 17/883,787 · Granted May 27, 2025

Wireless communication method and device and communication system

Inventors: Zhe Chen (Beijing, CN); Lei Song (Beijing, CN); Qinyan Jiang (Beijing, CN); Lei Zhang (Beijing, CN); Xin Wang (Beijing, CN)
Assignee: FUJITSU LIMITED
H04B7/0626H04L1/1812H04L27/26025H04W72/23
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Quick Facts
Patent No.
US 12,316,415
App. No.
17/883,787
Granted
May 27, 2025
Kind
B2
Abstract

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.

Claims (27)

1. A wireless communication device, comprising:

a transmitter configured to transmit, to another wireless communication device, a downlink data signal at a time unit n, the downlink data signal comprising an activation or deactivation command acting on a secondary cell; and

a receiver configured to receive an uplink control signal carrying the HARQ-ACK information corresponding to the downlink data signal, transmission of the uplink control signal corresponding to a time unit which is a time unit n+k+1 or a time unit n+k, the time unit n+k+1 is time that the another wireless communication device applies corresponding action not earlier than or the another wireless communication device applies applying actions related to a deactivation timer of the secondary cell, the time unit n+k relating to timing that the another wireless communication device applies actions related to a CSI report which is related to or corresponds to the activation or deactivation command, wherein

the k is obtained through calculation by using a formula as below:

k=k′ 1 +3 N slot subframe,μ ;

where,

N slot subframe,μ refers to the number of slots contained in each subframe when SCS (subcarrier spacing) configuration corresponding to transmission of the uplink control signal is μ, and

k′ 1 refers to the slot offset or offset between the downlink data signal and the uplink control signal carrying the HARQ-ACK information corresponding to the downlink data signal.

2. A wireless communication device, comprising:

a receiver configured to receive a downlink data signal at a time unit n, the downlink data signal comprising an activation or deactivation command acting on a secondary cell; and

processor configured to perform 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 a CSI report after a time unit n+k, wherein, the CSI report is related to or corresponds to the activation or deactivation command,

each of the time unit n, the time unit n+k, and the time unit n+k+1 referring to a time unit corresponding to transmission of an uplink control signal,

wherein the k is obtained through calculation by using a formula as below:

k=k′ 1 +3 N slot subframe,μ ;

where,

N slot subframe,μ refers to the number of slots contained in each subframe when SCS (subcarrier spacing) configuration corresponding to transmission of an uplink control signal is μ,

k′ 1 refers to the slot offset or offset between the downlink data signal and the uplink control signal carrying the HARQ-ACK information corresponding to the downlink data signal.

3. The device according to claim 2 , wherein the k is related to a slot offset or offset between the downlink data signal and an uplink control signal carrying HARQ-ACK information corresponding to the downlink data signal.

4. The device according to claim 2 , wherein the applying actions related to the CSI report after a time unit n+k comprises: applying actions related to the CSI report at a time unit after the time unit n+k, the time unit after the time unit n+k being the time unit n+k+1; wherein the CSI report is active at the time unit n+k+1.

5. The device according to claim 2 , wherein the applying actions related to the CSI report after a time unit n+k comprises: applying actions related to the CSI report at a time unit after the time unit n+k, the time unit after the time unit n+k being a time unit after the time unit n+k+1, the time unit being earliest in time units when the CSI report is active.

6. The device according to claim 5 , wherein,

the CSI report is not active at the time unit n+k+1.

7. The device according to claim 2 , wherein that the receiver receiving a downlink data signal at a time unit n refers to that,

the receiver receives the downlink data signal ending at the time unit n.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 5, 2026
From: FUJITSU LIMITED
To: 1FINITY INC.
Reel/Frame 074197/0244 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 9, 2022
From: CHEN, ZHE; SONG, LEI; JIANG, QINYAN; ZHANG, LEI; WANG, XIN
To: FUJITSU LIMITED
Reel/Frame 060754/0721 →
Continuity (2)
Continuation PCTCN2020075108 · Feb 13, 2020
Related Publication 20220393739A1 · Dec 8, 2022
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