2012年12月13日 · 本文介绍了LTE网络中Channel Quality Indication (CQI)的报告机制，包括periodic和aperiodic两种类型，重点讲解了CQI报告在Physical Uplink Control Channel (PUCCH)和Physical Uplink Shared Channel (PUSCH)上的传输情况。

For a UE in transmission mode 10, when parameter eMIMO-Type is not configured by higher layers, the UE shall derive the channel measurements for computing the CQI value reported in uplink subframe/slot/subslot n and corresponding to a CSI process, based on only the non-zero power CSI-RS (defined in [3]) within a configured CSI-RS resource ...

In HSDPA, the CQI value ranges from 0 ~ 30. 30 indicates the best channel quality and 0,1 indicates the poorest channel quality. Depending which value UE reports, network transmit data with different transport block size. If network gets high CQI value from UE, it transmit the data with larger transport block size and vice versa.

In this contribution, the new modulation and coding scheme for fast feedback channel (or CQI(Channel Quality Indicator) channel) using the optional uplink PUSC subchannel is proposed to improve the CQI performance. The subchannel …

2015年10月29日 · An important piece of information for this selection process is the Channel Quality Indicator (CQI) feedback transmitted by the User Equipment (UE) in the uplink channel. CQI feedback is an indicator of the data rate that the channel can support, taking into consideration the Signal to Interference plus Noise Ratio (SINR) and the receiving ...

In this contribution we are proposing a simple method for operating uplink CQI Channel. We call it Quality Based CQI Report. In multiple cell environment, uplink CQI Channel Quality degrades as number of CQI Channel allocated to MSS increases because of intercell interference inherent in OFDMA system.

This example demonstrates how to measure the Channel Quality Indicator (CQI) reporting performance using the LTE Toolbox™ under conformance test conditions as defined in TS36.101 Section 9.3.2.1.1.

经过实践操作验证，在cqi优良率恶化时，最关键的是要通过相关数据指标分析，找到造成cqi指标差的真正原因，采取对症的优化方案，才能及时有效解决网络实际问题。

2024年1月11日 · Channel Quality Indicator (CQI) reporting is a crucial aspect of 5G network optimization, providing valuable information about the quality of the communication channel between the User Equipment (UE) and the base station (eNodeB or gNB). The CQI is used by the network to adapt the transmission parameters, such as modulation

2019年8月28日 · Learn about physical uplink control channel (PUCCH) and uplink control information (UCI) in 5G New Radio. This video walks through the different types of messages, including HARQ, CQI, and scheduling requests. It discusses how they are encoded, modulated, and then mapped to the 5G New Radio slot via the PUCCH or physical uplink control channel.