User terminal and base station

US12069003B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-12069003-B2
Application numberUS-201817257728-A
CountryUS
Kind codeB2
Filing dateJul 6, 2018
Priority dateJul 6, 2018
Publication dateAug 20, 2024
Grant dateAug 20, 2024

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A user terminal according to one aspect of the present disclosure includes: a receiving section that receives downlink control information using a certain downlink control information format; and a control section that determines activation or deactivation of a secondary cell, based on the downlink control information. According to one aspect of the present disclosure, it is possible to control activation at higher speed.

First claim

Opening claim text (preview).

What is claimed is: 1. A terminal comprising: a receiver that receives downlink control information using a certain downlink control information format; and a processor that determines activation or deactivation of a secondary cell based on a frequency resource allocation field value in the downlink control information, wherein the processor determines timing of activation or deactivation of the secondary cell based on the downlink control information, the downlink control information includes a time resource allocation field, and the processor determines the timing of activation or deactivation of the secondary cell based on a slot offset that is indicated by the time resource allocation field in the downlink control information. 2. The terminal according to claim 1 , wherein the downlink control information includes at least one of a field that indicates activation or deactivation of the secondary cell and a field that indicates activation or deactivation of a bandwidth part (BWP). 3. The terminal according to claim 1 , wherein the processor determines an active bandwidth part (BWP) based on the downlink control information in a case that activation of the secondary cell is determined. 4. The terminal according to claim 2 , wherein the processor determines an active BWP based on the downlink control information in a case that activation of the secondary cell is determined. 5. A base station comprising: a transmitter that transmits downlink control information using a downlink control information format to a terminal; and a processor that controls a frequency resource allocation field value in the downlink control information in order for the terminal to determine activation or deactivation of a secondary cell, wherein the processor controls the downlink control information in order for the terminal to determine timing of activation or deactivation of the secondary cell based on the downlink control information, the downlink control information includes a time resource allocation field, the processor controls the timing of activation or deactivation of the secondary cell based on a slot offset, and the time resource allocation field in the downlink control information indicates the slot offset. 6. A system comprising a terminal and a base station, wherein the terminal comprises: a receiver that receives downlink control information using a certain downlink control information format; and a processor that determines activation or deactivation of a secondary cell based on a frequency resource allocation field value in the downlink control information, wherein the processor determines timing of activation or deactivation of the secondary cell based on the downlink control information, the downlink control information includes a time resource allocation field, and the processor determines the timing of activation or deactivation of the secondary cell based on a slot offset that is indicated by the time resource allocation field in the downlink control information, and the base station comprises: a transmitter that transmits the downlink control information.

Assignees

Inventors

Classifications

  • in the downlink direction of a wireless link, i.e. towards a terminal · CPC title

  • Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows · CPC title

  • Resources in frequency domain, e.g. a carrier in FDMA · CPC title

  • Resources in time domain, e.g. slots or frames · CPC title

  • Control channels or signalling for resource management · CPC title

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Frequently asked questions

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What does patent US12069003B2 cover?
A user terminal according to one aspect of the present disclosure includes: a receiving section that receives downlink control information using a certain downlink control information format; and a control section that determines activation or deactivation of a secondary cell, based on the downlink control information. According to one aspect of the present disclosure, it is possible to control…
Who is the assignee on this patent?
Ntt Docomo Inc
What technology area does this patent fall under?
Primary CPC classification H04W72/0453. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Aug 20 2024 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).