The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 22, 2025
Filed:
Jun. 10, 2024
Nec Corporation, Tokyo, JP;
Hisashi Futaki, Tokyo, JP;
Hiroaki Aminaka, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
A radio terminal () can perform carrier aggregation using a first cell () of a first radio station () and a second cell () of a second radio station (). The first radio station () or the second radio station () transmits constraint information to the radio terminal (). The constraint information contains an information element necessary to specify a reception constraint and/or transmission constraint related to the first cell () and/or the second cell () when the carrier aggregation is performed. The reception/transmission constraint is a constraint related to downlink signal reception/uplink signal transmission by the radio terminal over one or more subframe periods of the primary cell () and the secondary cell (). It is thus, for example, possible to contribute to reduction in wasteful power consumption in the radio terminal in the carrier aggregation of a plurality of cells served by different radio stations.