Channel quality information measurement method and device and channel quality information measurement resource allocation method and device

A technology for channel quality information and measurement resources, which is applied in the field of measurement resource configuration and channel quality information measurement, and can solve problems such as inaccurate measurement of channel quality information.

Inactive Publication Date: 2013-12-18
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0019] Aiming at the problem of inaccurate measurement of channel quality information in the related art, the present invention provide

Method used

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  • Channel quality information measurement method and device and channel quality information measurement resource allocation method and device
  • Channel quality information measurement method and device and channel quality information measurement resource allocation method and device
  • Channel quality information measurement method and device and channel quality information measurement resource allocation method and device

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0232] This preferred embodiment provides a method for configuring channel quality measurement resources. In the preferred embodiment, the channel quality measurement resources are configured at the base station and the terminal through at least one of the following schemes.

[0233] Solution 1: The base station independently configures resource positions of CRS in one resource block for different CSI-RS resources.

[0234] Solution 2: The base station configures the resource positions of multiple sets of CRS in one resource block.

[0235] Scheme 3: Assume according to the resource position in a resource block corresponding to the same CRS configuration for demodulating the PBCH.

[0236] Scheme 4: The high-level signaling of the base station notifies a set of CRS resource locations, so that the terminal completes correct resource assumptions when calculating the CQI.

[0237] Scheme 5: the base station and the terminal calculate the value of the CQI without considering the re...

Embodiment 2

[0264] This embodiment provides a method for configuring channel quality measurement resources. In this embodiment, assuming that UE1 is a UE of R11 or higher version, the base station needs to configure UE1 with multiple sets of CSI-RS resources to measure channel information of different nodes respectively. , in addition to configuring CSI-RS resource-related information, the base station also needs to configure different CRS resource information for different CSI-RS resources. After receiving multiple sets of CSI-RS resource information and corresponding CRS resource information configured by the base station, UE1 can obtain CRS configurations corresponding to different CSI-RS resources, so that this configuration can be used to assume CQI resources, For example, if the CRS position configured by CSI-RS resource 1 is CRS on subcarriers 0, 3, 6, and 9 of OFDM symbols 0, 4, 7, and 11, UE1 calculates the CQI of CSI-RS resource 1. Resources on subcarriers 0, 3, 6, and 9 of OFDM...

Embodiment 3

[0266] This embodiment provides a method for configuring channel quality measurement resources. In this embodiment, assuming that UE1 is a UE of R11 or higher version, the base station needs to configure UE1 with multiple sets of CSI-RS resources to measure channel information of different nodes respectively. , in addition to configuring CSI-RS resource-related information, the base station also needs to configure different CRS resource information and MBSFN subframe configuration information for different CSI-RS resources. After UE1 receives multiple sets of CSI-RS resource information and corresponding CRS resource information configured by the base station, it can obtain the corresponding CRS configuration and MBSFN subframe configuration information for different CSI-RS resources, so that it can use this configuration To make the assumption of CQI resources, for example, for CSI-RS resource 1, the configured CRS positions are CRS on the 0, 3, 6, and 9th subcarriers of OFDM ...

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Abstract

The invention discloses a channel quality information measurement method and device and a channel quality information measurement resource allocation method and device. The allocation method includes: a base station determines resource information used for excluding part of measurement resources in one of ways as follow; the base station allocates resource information of CRSs (common reference signals) in a resource block according to different CSI-RSs; the base station allocates resource information of multiple CRS sets in a resource block; the resource information in the corresponding resource block is allocated according to the detected allocated CRSs; the base station sets a set of CRS resource information; the base station determines resource information of the used CRS resources; the base station determines the resource information of OFDM symbols used by the CRSs; the base station allocates resource information such as resource information allocated by multiple MBSFN sets; the base station transmits the resource information to a terminal. The measurement resources are used for CQI measurement for the terminal. The channel quality information measurement method and device and the channel quality information measurement resource allocation method and device have the advantages that measurement of channel quality information is more accurate.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method and device for channel quality information measurement and measurement resource configuration. Background technique [0002] The Long Term Evolution (LTE for short) system has gone through several versions of R8 / 9 / 10, and then accurately researched R11 technology one after another. At present, some R8 products are gradually commercialized, and R9 and R10 are subject to further product planning. [0003] After going through the stages of R8 and R9, R10 added many new features on the basis of the first two, such as demodulation reference signal (Demodulation Reference Signal, referred to as DMRS), channel state information reference signal (Channel State Information Reference Signal , referred to as CSI-RS) and other pilot characteristics, 8-antenna support and other transmission and feedback characteristics, etc., especially the enhanced inter-cell interference cancella...

Claims

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Application Information

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IPC IPC(8): H04W24/08H04W72/04H04L1/00H04L27/26
Inventor 郭森宝孙云锋任敏张晨晨
Owner ZTE CORP
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