Method for configuring channel state information reference signal, base station and access point

Abstract

Embodiments of the present invention provide a method for configuring channel state information reference signals, a base station, and an access point. In this method, the access points are divided into a first access point set and a second access point set, a first CSI-RS pilot pattern is configured for the user equipment and allocated to the first access point set, and a second CSI-RS pilot pattern is configured. -RS pilot pattern and assigned to the second access point set, configure the third CSI-RS pilot pattern, and assign to the first antenna and the second access point of the first access point of the first access point set An antenna set composed of the first antenna of the first access point of the point set, so that each access point transmits non-zero power in its respective pilot pattern; sends non-zero power CSI‑RS configuration information to the user equipment, so that the user equipment measures And report the first downlink channel state information, the second downlink channel state information and the third downlink channel state information of the antenna set, and the base station obtains the joint downlink channel state information according to the downlink channel state information.

Description

technical field [0001] The invention relates to wireless communication technology, in particular to a method for configuring channel state information reference signals, a base station and an access point. Background technique [0002] In a wireless communication system, in order to enable user equipment (User Equipment, hereinafter referred to as UE) to measure downlink channel state information (Channel State Information, hereinafter referred to as CSI), the base station needs to send certain reference signals to UEs in the covered area for downlink channel measurements. For example, in the 3rd Generation Partnership Project (the 3rdGeneration Partnership Project, hereinafter referred to as 3GPP) long term evolution (Long Term Evolution, hereinafter referred to as LTE) release 10 (Release 10) protocol, the base station needs to send a channel state information reference signal (ChannelState Information Reference signal, hereinafter referred to as CSI-RS) to the UE in the ...

AI Technical Summary

Problems solved by technology

Unlike the LTE Release 10 protocol, the base station can only configure one CSI-RS for the UE at most. In the LTE Release 11 protocol, the base station can configure a maximum of 3 CSI-RSs for the UE, so that the UE can measure the CSI of multiple cells, but the UE cannot directly measure the feedback. Channel adjustment information between cells

Images