Channel measuring method and device

Abstract

An embodiment of the invention provides a method and a device for configuring reference signals. The method includes configuring reference signal information corresponding to each of N frequency bands with the same carrier frequency respectively according to measuring requirements so as to enable reference signal density contained in the reference signal information of at least two of the N frequency bands to be different after configuration, wherein N is a positive integer larger than or equal to 2, the reference signal information refers to the information required for generating the reference signals, and the reference signal density refers to the distribution density of the reference signals or patterns of the reference signals on a time domain or a frequency domain; and informing user equipment (UE) of the reference signal information to enable the UE to measure channels according to the reference signal information. According to the method and the device, the reference signal information is designed corresponding to different measuring requirements of different frequency bands, and spending for the reference signals are reduced under the guarantee of measuring accuracy of the reference signals.

Description

technical field [0001] Embodiments of the present invention relate to the field of wireless communication, and more specifically, to a method and device for channel measurement. Background technique [0002] In a wireless communication system, due to factors such as mobility of user equipment (UE) and multipath propagation of wireless signals, the channel state between the base station and the UE changes with time and frequency. In order to improve the transmission efficiency of the system, it is expected that the base station can effectively use the channel state information between the base station and the UE, and schedule each UE on the time-frequency resource corresponding to the best channel state of the UE. Based on this, the base station needs to know the channel state information of each UE. [0003] In a wireless communication system, such as LTE (Long term evolution, long-term evolution) / LTE-A (LTE-Advanced, advanced long-term evolution) system, the base station g...

AI Technical Summary

Problems solved by technology

However, at present, the base station does not consider the different measurement purposes of different frequency bands for the reference signal characteristics of each frequency band configured by the UE, so that the above two factors cannot be fully taken into account, resulting in insufficient accuracy of channel quality measurement or interference level measurement on some frequency bands, or Increases reference signal overhead on some frequency bands

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