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Methods and arrangements for mobility management
US8948764B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8948764-B2 |
| Application number | US-200913377661-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 27, 2009 |
| Priority date | Jun 26, 2009 |
| Publication date | Feb 3, 2015 |
| Grant date | Feb 3, 2015 |
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Abstract
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The present invention relates to methods and devices for mobility management in a cellular communications system. A user equipment maintains ( 21 ) at least two sets of mobility trigger parameters. Each set of mobility trigger parameters corresponds to a predetermined user equipment speed range. The user equipment determines ( 22 ) a speed range that the speed of the user equipment falls into and selects ( 23 ), based on the determined speed range, at least one set of mobility trigger parameters to be used for performing mobility-based decisions. If the user equipment is in connected mode a network base station may select a set of mobility trigger parameters to be used for performing handover decisions based on a determined speed range of the user equipment. Advantages are that ping-pong mobility decisions may be avoided and it is sufficient to determine a range for the UE speed, which is less complicated than determining an accurate speed of the UE particularly in idle mode.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method for mobility management in a user equipment for use in a cellular communications system, comprising: maintaining at least two sets of mobility trigger parameters, each set of mobility trigger parameters corresponding to a predetermined user equipment speed range; determining a speed range of the user equipment by monitoring the number of times that cell changes are triggered by the at least two sets of mobility trigger parameters; and sele…
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Classifications
- H04W36/322Primary
Electricity · mapped topic
- H04W36/32Primary
Electricity · mapped topic
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Frequently asked questions
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- What does patent US8948764B2 cover?
- The present invention relates to methods and devices for mobility management in a cellular communications system. A user equipment maintains ( 21 ) at least two sets of mobility trigger parameters. Each set of mobility trigger parameters corresponds to a predetermined user equipment speed range. The user equipment determines ( 22 ) a speed range that the speed of the user equipment falls into a…
- Who is the assignee on this patent?
- Dimou Konstantinos, Kazmi Muhammad, Müller Walter, and 2 more
- What technology area does this patent fall under?
- Primary CPC classification H04W36/322. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Feb 03 2015 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).