Method and apparatus of operating multiple time alignment timers in mobile communication system supporting carrier aggregation
US-2022078771-A1 · Mar 10, 2022 · US
Method for maintaining time advance timer, base station and terminal equipment
US12452804B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12452804-B2 |
| Application number | US-201916526356-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 30, 2019 |
| Priority date | Apr 21, 2011 |
| Publication date | Oct 21, 2025 |
| Grant date | Oct 21, 2025 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A base station including: a judging unit configured to judge whether a band to be uplink adjusted includes only a band corresponding to a primary cell; and a transmitter configured to transmit a command for the band corresponding to the primary cell when the judging unit determines that the band to be uplink adjusted includes only the band corresponding to the primary cell, such that a timer relating to an uplink synchronization for the band corresponding to the primary cell is restarted.
First claim
Opening claim text (preview).
What is claimed is: 1. A base station comprising: a memory that stores a plurality of instructions; a processor coupled to the memory and configured to execute the plurality of instructions to determine whether a band to be uplink adjusted includes only a band corresponding to a primary cell; and a transmitter configured to transmit a command for the band corresponding to the primary cell when it is determined that the band to be uplink adjusted includes only the band corresponding to the primary cell, wherein, the command contains an indication of the band corresponding to the primary cell, such that a timer relating to uplink synchronization for the band corresponding to the primary cell is restarted. 2. The base station according to claim 1 , wherein the transmitter is further configured to transmit a command for the band to be uplink adjusted and the band corresponding to the primary cell when it is determined that the band to be uplink adjusted includes a band not corresponding to the primary cell, such that a timer relating to uplink synchronization associated with the band to be uplink adjusted and the timer relating to uplink synchronization only associated with the band corresponding to the primary cell are restarted.
Assignees
Inventors
Classifications
- H04W24/04Primary
Arrangements for maintaining operational condition · CPC title
- H04W56/0045Primary
compensating for timing error by altering transmission time · CPC title
- H04W56/001Primary
Synchronization between nodes · CPC title
Buffer management · CPC title
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- What does patent US12452804B2 cover?
- A base station including: a judging unit configured to judge whether a band to be uplink adjusted includes only a band corresponding to a primary cell; and a transmitter configured to transmit a command for the band corresponding to the primary cell when the judging unit determines that the band to be uplink adjusted includes only the band corresponding to the primary cell, such that a timer re…
- Who is the assignee on this patent?
- Fujitsu Ltd
- What technology area does this patent fall under?
- Primary CPC classification H04W24/04. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Oct 21 2025 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).