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A pilot mapping method and device

A mapping method and a technology of a mapping device, which are applied in the field of communication, can solve problems such as the absence of control channel and data channel demodulation methods, and achieve the effects of avoiding resource conflicts and improving channel demodulation performance

Active Publication Date: 2021-01-22
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, in the current communication network using sTTI, there is no method for demodulating the control channel and data channel of sTTI based on DMRS

Method used

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  • A pilot mapping method and device
  • A pilot mapping method and device

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Embodiment Construction

[0054] The technical solutions in the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.

[0055] An embodiment of the present invention provides a pilot mapping method, which maps independent DMRSs for control channels and data channels in sTTI, so as to realize DMRS-based demodulation of control channels and data channels in sTTIs.

[0056] Embodiments of the present invention The implementation process of the pilot mapping method provided by the embodiments of the present invention will be described in detail below.

[0057] The pilot mapping method described in the embodiment of the present invention can be applied to the LTE system, or other wireless communication systems using various wireless access technologies. In addition, it can also be applied to the subsequen...

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Abstract

Disclosed are a pilot mapping method and device, the method comprising: determining a control channel and a data channel to be demodulated within a short transmission time interval, and respectively mapping demodulation reference signals (DMRSs) for the control channel and the data channel within the short transmission time interval, wherein the DMRS of the control channel being a first DMRS, the DMRS of the data channel being a second DMRS, and the first DMRS and the second DMRS are independent from each other. The present invention implements DMRS-based demodulation of a control channel and a data channel by allocating independent DMRSs to the control channel and the data channel.

Description

technical field [0001] The present invention relates to the field of communication technologies, in particular to a pilot mapping method and device. Background technique [0002] With the development and change of mobile communication service requirements, higher requirements are put forward for user plane delay performance in future mobile communication systems. One of the main methods to improve user delay performance is to reduce the length of Transmission Time Interval (Transmission Time Interval, TTI) and introduce Short Transmission Time Interval (Short Transmission Time Interval, sTTI). [0003] In a communication network, a radio frame (raido frame) is used as a unit to transmit signals, and each radio frame is composed of subframes (subframe). For example, in a Long Term Evolution (LTE) frequency division duplex (Frequency Division Duplex, FDD) system, the figure 1 The frame structure shown, figure 1 The frame structure shown may be referred to as frame structure...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L5/00
CPCH04L5/0007H04L5/0048H04L5/00
Inventor 林祥利潘学明
Owner DATANG MOBILE COMM EQUIP CO LTD