Authorization method and apparatus
US-2024388909-A1 · Nov 21, 2024 · US
Method and apparatus for transmitting downlink reference signal in wireless communication system that supports multiple antennas
US8982829B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8982829-B2 |
| Application number | US-201414218338-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 18, 2014 |
| Priority date | Aug 14, 2009 |
| Publication date | Mar 17, 2015 |
| Grant date | Mar 17, 2015 |
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Abstract
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The present invention relates to a wireless communication system, and in particular, to a method and an apparatus for transmitting a downlink reference signal in a wireless communication system that supports multiple antennas. The method for transmitting a reference signal for a maximum of eight antenna ports according to one embodiment of the present invention comprises: in a base station, mapping part of a common reference signal for a maximum of four antenna ports into a downlink subframe that includes a 1 st slot and a 2 nd slot; in the base station, mapping a channel status information reference signal for the maximum of eight antenna ports into the downlink subframe, according to a preset pattern; and in the base station, transmitting the downlink subframe into which the common reference signal and the channel status information reference signal have been mapped, wherein the preset pattern defines the channel status information reference signal for the maximum of eight antenna ports to be mapped onto two OFDM symbols of the data region in the downlink subframe, and wherein part of the common reference signal for the maximum of four antenna ports is limited to the common reference signal for a maximum of two antenna ports.
First claim
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The invention claimed is: 1. A method for transmitting reference signals for 8 or fewer antenna ports at a base station, the method comprising: transmitting common reference signals (CRSs) for four or fewer antenna ports and channel state information-reference signals (CSI-RSs) for the 8 or fewer antenna ports, wherein the CRSs and the CSI-RSs are mapped to a downlink subframe including a first slot and a second slot, wherein the downlink subframe has an extended cyclic prefix…
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Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
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- What does patent US8982829B2 cover?
- The present invention relates to a wireless communication system, and in particular, to a method and an apparatus for transmitting a downlink reference signal in a wireless communication system that supports multiple antennas. The method for transmitting a reference signal for a maximum of eight antenna ports according to one embodiment of the present invention comprises: in a base station, map…
- Who is the assignee on this patent?
- Lg Electronics Inc
- What technology area does this patent fall under?
- Primary CPC classification H04L5/0053. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Mar 17 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).