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Method and device for measuring channel state information

A channel state information and measurement method technology, applied in the field of channel state information measurement methods and devices, can solve the problems of limiting interference measurement flexibility and reducing interference measurement accuracy, and achieves the effects of improving flexibility, reducing overhead, and reducing system load

Active Publication Date: 2022-03-29
DATANG MOBILE COMM EQUIP CO LTD
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  • Description
  • Claims
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Problems solved by technology

[0007] However, in the NR system, only one set of resource parameters is designed for the non-zero-power CSI-RS resource group of IMR, which is used for all CSI-RS ports of the non-zero-power CSI-RS resource, so that in a large Procedurally limits the flexibility of interference measurements and reduces the accuracy of interference measurements

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  • Method and device for measuring channel state information
  • Method and device for measuring channel state information
  • Method and device for measuring channel state information

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Embodiment Construction

[0108] In order to ensure the accuracy and flexibility of interference measurement, in the embodiment of the present invention, in each measurement process, one non-zero power CSI-RS resource is used for interference measurement, and one non-zero power CSI-RS resource except one The resource parameters shared by the group also include several groups of port parameters, wherein the port parameters used by the different CSI-RS port groups of the one non-zero-power CSI-RS resource are configured independently, and one CSI-RS port group includes at least one CSI-RS port.

[0109] The preferred embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings.

[0110] refer to figure 2 As shown, in the embodiment of the present invention, the detailed flow of port parameter configuration by the base station is as follows:

[0111] Step 200: the base station configures a first CSI-RS resource for a target terminal, and t...

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Abstract

The invention relates to the communication field, and discloses a channel state information measurement method and device to ensure the accuracy and flexibility of interference measurement. The method is as follows: the base station independently configures the port parameters of the CSI-RS port groups for the CSI-RS port groups included in the non-zero power CSI-RS resources used for interference measurement, wherein one CSI in several CSI-RS port groups The ‑RS port group contains at least one CSI‑RS port, so that for different interference scenarios, appropriate port parameters can be configured for interference measurement, which not only ensures the accuracy and accuracy of interference measurement, but also improves the flexibility of interference measurement. It also effectively reduces the overhead of CSI-RS resources and lightens the system load.

Description

technical field [0001] The invention relates to the communication field, in particular to a method and device for measuring channel state information. Background technique [0002] In the 5G system, when the user equipment (User Equipment, UE) performs channel state information measurement based on the new air interface (New Radio, NR), it needs to use channel measurement resources (CMR) and interference measurement resources (IMR) for channel measurement respectively. and interference measurements. Among them, CMR uses non-zero power (Channel State Information Reference Signal, CSI-RS) resources, and IMR uses zero-power CSI-RS resources, and for aperiodic CSI reporting, non-zero power CSI-RS resources can also be used at the same time as an IMR. [0003] Specific as figure 1 As shown, when each aperiodic CSI is reported, it can be associated with 3 resource configurations, that is, configuring non-zero-power CSI-RS resources for channel measurement, configuring zero-powe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L5/00H04B17/345H04B17/309
CPCH04L5/0048H04B17/345H04B17/309
Inventor 李辉陈润华高秋彬拉盖施
Owner DATANG MOBILE COMM EQUIP CO LTD