System and method for wireless communications measurements and CSI feedback
US-9838102-B2 · Dec 5, 2017 · US
Method by which terminal reports channel state information in wireless communication system and apparatus therefor
US2018317112A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2018317112-A1 |
| Application number | US-201615772430-A |
| Country | US |
| Kind code | A1 |
| Filing date | Oct 28, 2016 |
| Priority date | Oct 29, 2015 |
| Publication date | Nov 1, 2018 |
| Grant date | — |
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- Title
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Abstract
Official abstract text for this publication.
A method by which a terminal reports CSI in a wireless communication system, according to an embodiment of the present invention, comprises the steps of: calculating CSI for at least one interference measurement resource selected from among a plurality of interference measurement resources respectively having unique indices in a specific subframe; and reporting the CSI to a base station, wherein the CSI can be reported with a subframe index of the specific subframe and the unique index of the at least one interference measurement resource.
First claim
Opening claim text (preview).
What is claimed is: 1 . A method of reporting CSI (channel status information) by a user equipment in a wireless communication system, the method comprising: calculating the CSI on at least one interference measurement resource selected from a plurality of interference measurement resources respectively having unique indexes in a specific subframe; and reporting the CSI to a base station, wherein the CSI is reported together with a subframe index of the specific subframe and the unique index of the at least one interference measurement resource. 2 . The method of claim 1 , wherein at least one of a downlink interference signal from the base station, an uplink interference signal from the user equipment or other user equipments, and a D2D (device-to-device) interference signal from the user equipment or other user equipments is transmitted on each of a plurality of the interference measurement resources. 3 . The method of claim 1 , further comprising selecting the at least one interference measurement resource from a plurality of the interference measurement resources. 4 . The method of claim 1 , further comprising receiving a control signal instructing to select the at least one interference measurement resource from a plurality of the interference measurement resources from the base station. 5 . The method of claim 1 , further comprising receiving a control signal indicating an interference measurement resource set configured with some of a plurality of the interference measurement resources from the base station, wherein the at least one interference measurement resource is selected from the interference measurement resource set by the user equipment. 6 . The method of claim 1 , wherein the at least one interference measurement resource comprises a resource having an interference value equal to or smaller than a specific threshold among a plurality of the interference measurement resources. 7 . The method of claim 1 , further comprising reporting a unique index of a resource having an interference value equal to or greater than a specific threshold and a subframe index of a subframe, to which the resource having the interference value equal to or greater than a specific threshold belongs, to the base station. 8 . A user equipment configured to report channel status information (CSI) in a wireless communication system, comprising: a radio frequency (RF) unit; and a processor configured to control the RF unit, wherein the processor is further configured to calculate the CSI on at least one interference measurement resource selected from a plurality of interference measurement resources respectively having unique indexes in a specific subframe and report the CSI to a base station, wherein the CSI is reported together with a subframe index of the specific subframe and the unique index of the at least one interference measurement resource. 9 . The user equipment of claim 8 , wherein at least one of a downlink interference signal from the base station, an uplink interference signal from the user equipment or other user equipments, and a D2D (device-to-device) interference signal from the user equipment or other user equipments is transmitted on each of a plurality of the interference measurement resources. 10 . The user equipment of claim 8 , wherein the processor is further configured to select the at least one interference measurement resource from a plurality of the interference measurement resources. 11 . The user equipment of claim 8 , wherein the processor is further configured to receive a control signal instructing to select the at least one interference measurement resource from a plurality of the interference measurement resources from the base station. 12 . The user equipment of claim 8 , wherein the processor is further configured to receive a control signal indicating an interference measurement resource set configured with some of a plurality of the interference measurement resources from the base station and wherein the at least one interference measurement resource is selected from the interference measurement resource set by the user equipment. 13 . The user equipment of claim 8 , wherein the at least one interference measurement resource comprises a resource having an interference value equal to or smaller than a specific threshold among a plurality of the interference measurement resources. 14 . The user equipment of claim 8 , wherein the processor is further configured to report a unique index of a resource having an interference value equal to or greater than a specific threshold and a subframe index of a subframe, to which the resource having the interference value equal to or greater than a specific threshold belongs, to the base station.
Assignees
Inventors
Classifications
Control channels or signalling for resource management · CPC title
Interference values ({signal-to-interference ratio [SIR] or carrier-to-interference ratio [CIR]} H04B17/336) · CPC title
- H04W24/10Primary
Scheduling measurement reports {; Arrangements for measurement reports} · CPC title
with feedback of measurements to the transmitter · CPC title
Electricity · mapped topic
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Frequently asked questions
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- What does patent US2018317112A1 cover?
- A method by which a terminal reports CSI in a wireless communication system, according to an embodiment of the present invention, comprises the steps of: calculating CSI for at least one interference measurement resource selected from among a plurality of interference measurement resources respectively having unique indices in a specific subframe; and reporting the CSI to a base station, wherei…
- Who is the assignee on this patent?
- Lg Electronics Inc
- What technology area does this patent fall under?
- Primary CPC classification H04W24/10. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Nov 01 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).