Demodulation reference signal (DMRS) transmission device and computer readable storage medium

Abstract

The invention provides a demodulation reference signal (DMRS) transmission device and a computer readable storage medium. The method comprises the steps as follows: user equipment receives a DMRS indication message sent by a base station, wherein the DMRS indication message is used for indicating a DMRS pattern of a DMRS antenna port, and the DMRS pattern is a position where DMRS time frequency resources exist and / or a position of a resource element (RE) occupied by a DMRS in the time frequency resources; the user equipment determines a DMRS pattern of the DMRS antenna port according to the DMRS indication message; and the user equipment acquires the DMRS according to the DMRS pattern of the DMRS antenna port. By using the demodulation reference signal transmission device and the computerreadable storage medium provided by the invention, the base station sends the DMRS to the user equipment according to the DMRS pattern with relative low DMRS overhead, the user equipment acquires theDMRS according to the DMRS pattern with the relatively low overhead, and thus the RE that can transmit effective data is increased when the DMRS overhead is relatively low, and the utilization rate and the data transmission rate of the RE are improved.

Description

technical field [0001] Embodiments of the present invention relate to communication technologies, and in particular to a demodulation reference signal (Demodulation Reference Signal, DMRS for short) transmission device and a computer-readable storage medium. Background technique [0002] In a wireless communication system, a user equipment (User Equipment, UE for short) estimates a downlink channel through a DMRS sent by a base station. For example: in the Long Term Evolution (LTE for short) Release 10 (Release 10, R10 for short) system, the user equipment demodulates the Physical Downlink Shared Channel (Physical Downlink Shared Channel, PDSCH for short) according to the DMRS, or, in the LTE In the Release 11 (Release 10, R11 for short) system, the user equipment demodulates an Enhanced Physical Downlink Control Channel (Enhance Physical Downlink Control Channel, EPDCCH for short) according to the DMRS. [0003] In the prior art, the base station carries the DMRS in the Re...

AI Technical Summary

Problems solved by technology

[0004] However, in the prior art, a base station with a small coverage area transmits DMRS according to the DMRS pattern of the DMRS antenna port specified in the LTE protocol, which makes the RE overhead occupied by the DMRS larger, for example, the overhead occupation can be 7%, which reduces the utilization rate of the RE.

Images