Unlock instant, AI-driven research and patent intelligence for your innovation.

A method and device for transmitting a demodulation reference signal dedicated to user equipment

A technology for demodulation reference signal and user equipment, which is applied in the field of transmission of demodulation reference signal dedicated to user equipment

Active Publication Date: 2019-05-21
DATANG MOBILE COMM EQUIP CO LTD
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a user equipment-specific transmission method and equipment for demodulation reference signals, so as to solve the downlink subframe 6 in the TDD uplink / downlink configuration of the 10ms uplink and downlink switching point. The existing resource mapping method is on the NCT The problem that the UE-specific DM-RS transmission method defined for conventional downlink subframes is no longer applicable to this downlink subframe6

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A method and device for transmitting a demodulation reference signal dedicated to user equipment
  • A method and device for transmitting a demodulation reference signal dedicated to user equipment
  • A method and device for transmitting a demodulation reference signal dedicated to user equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] An embodiment of the present invention provides a UE-dedicated DM-RS transmission scheme. According to a UE-dedicated DM-RS resource mapping method corresponding to TDD special subframe configuration, the time for transmitting UE-dedicated DM-RS in a downlink subframe is determined. The UE-specific DM-RS is sent to the UE on the time-frequency resource determined in the downlink subframe. Wherein, the downlink subframe is a downlink subframe except the special subframe in the TDD system or a downlink subframe in the frequency FDD system. The time-frequency resources used for transmitting UE-specific DM-RS in the downlink subframe determined according to the UE-specific DM-RS resource mapping manner corresponding to the TDD special subframe do not overlap with the time-frequency resources used for transmitting synchronization signals. Since the UE-specific DM-RS resource mapping method corresponding to the TDD special subframe configuration avoids mapping the UE-specific...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a transmission method for UE special-purpose demodulation reference signals (DM-RSs) and devices. The method includes the following steps: according to a UE special-purpose DM-RS resource mapping method corresponding to a kind of TDD special subframe configuration, time frequency resources used for transmitting UE special-purpose DM-RSs is determined in a downlink subframe, wherein the downlink subframe is a downlink subframe excepting a special subframe in a TDD system or a downlink subframe in an FDD system; overlapping between the time frequency resources which are determined by the UE special-purpose DM-RS resource mapping method corresponding to the TDD special subframe and used for transmitting the UE special-purpose DM-RSs in the downlink subframe and time frequency resources used for transmitting synchronous signals does not exist; and the UE special-purpose DM-RSs are sent to the UE on the time frequency resources determined in the downlink subframe. The technical scheme is applied to an NCT and is applicable to a downlink subframe 6 in TDD uplink / downlink configuration of 10ms uplink and downlink switching points so that the resource utilization rate on the NCT is improved.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method and device for transmitting a demodulation reference signal dedicated to user equipment. Background technique [0002] In order to further improve system resource utilization, Long Term Evolution-Advance (LTE-A, Long Term Evolution-Advance) system version-11 (Release 11, Rel-11) decided to introduce a new carrier type (New Carrier Type, NCT). There is no traditional (legacy) control area on the NCT, and the physical downlink shared channel (Physical Downlink Shared Channel, PDSCH) and the enhanced physical downlink control channel (Enhanced Physical Downlink Control Channel, E-PDCCH) frequency division multiplexing transmission. PDSCH and E-PDCCH on NCT can be downlinked in all Orthogonal Frequency Division Multiplexing (OFDM) symbols in a downlink subframe and in a special subframe of Time Division Duplex (TDD) All OFDM symbols included in the pilot time...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/06H04L27/26
Inventor 高雪娟
Owner DATANG MOBILE COMM EQUIP CO LTD