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Method and arrangement for adapting power of reference signals
US8948769B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8948769-B2 |
| Application number | US-201314053901-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 15, 2013 |
| Priority date | Feb 17, 2010 |
| Publication date | Feb 3, 2015 |
| Grant date | Feb 3, 2015 |
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Abstract
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A method and an arrangement in a radio network node for adapting transmission power of resource elements for demodulation reference signals, referred to as “reference elements” are provided. The radio network node is configured for multiple-input multiple-output transmission, referred to as “MIMO transmission”, to a user equipment. The MIMO transmission comprises at least three layers. Two consecutive subcarriers of a resource block carry at least three reference elements. A first subcarrier of the resource block carries data elements. The radio network node adapts transmission power of said at least three reference elements such that an average transmission power, over said two consecutive subcarriers, of said at least three reference elements is equal to a transmission power, for the first subcarrier, of the data elements for said at least three layers. The radio network node uses the adapted transmission power to transmit, to the user equipment, said at least three reference elements.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method in a radio network node for adapting transmission power of reference elements which comprise resource elements for demodulation reference signals, wherein the radio network node is configured for multiple-input multiple-output (MIMO) transmission to a user equipment, wherein said MIMO transmission comprises at least three layers, each layer being allocated to a resource block of said MIMO transmission, wherein the resource block comprises subca…
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Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
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Frequently asked questions
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- What does patent US8948769B2 cover?
- A method and an arrangement in a radio network node for adapting transmission power of resource elements for demodulation reference signals, referred to as “reference elements” are provided. The radio network node is configured for multiple-input multiple-output transmission, referred to as “MIMO transmission”, to a user equipment. The MIMO transmission comprises at least three layers. Two cons…
- Who is the assignee on this patent?
- Ericsson Telefon Ab L M
- What technology area does this patent fall under?
- Primary CPC classification H04W52/325. 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).