Transmission method, device and system

A transmission method and frequency domain technology, applied in the field of communication, can solve the problem of mutual interference of multiple TTIs sharing DMRS time domain positions

Active Publication Date: 2020-11-06
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In view of the above technical problems, the present invention provides a transmission method, device and system to solve the problem of mutual interference when multiple TTIs share DMRS time domain positions

Method used

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  • Transmission method, device and system
  • Transmission method, device and system
  • Transmission method, device and system

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0116] see Figure 6 , a transmission method is shown in the figure, and the specific steps are as follows:

[0117] Step S601, the terminal receives a first downlink control channel, determines a first frequency domain resource according to the first downlink control channel, and transmits a first uplink shared channel on the first frequency domain resource.

[0118] Optionally, in this embodiment, the first downlink control channel is used to bear the uplink scheduling grant of the first uplink shared channel.

[0119] Optionally, in this embodiment, the TTI length of the first downlink control channel and / or the first uplink shared channel is less than or equal to 1 ms.

[0120] Step S602, the terminal determines the sequence length of the terminal's pilot based on the size of the first frequency domain resource and the mapping interval or density of each element in the pilot sequence in the frequency domain or the pilot reuse factor, and generates the sequence length pil...

no. 2 example

[0150] see Figure 9 , a transmission method is shown in the figure, and the specific steps are as follows:

[0151] Step S901, the base station determines a first frequency domain resource for the terminal to transmit a first uplink shared channel, sends a first downlink control channel to the terminal, and notifies the first frequency domain resource.

[0152] Optionally, in this embodiment, the first downlink control channel is used to bear the uplink scheduling grant of the first uplink shared channel.

[0153] Optionally, in this embodiment, the TTI length of the first downlink control channel and / or the first uplink shared channel is less than or equal to 1 ms.

[0154] Step S902, the base station receives the first uplink shared channel sent by the terminal on the first frequency domain resource.

[0155] Step S903, the base station determines the sequence length of the terminal's pilot based on the size of the first frequency domain resource and the mapping interval ...

no. 3 example

[0176] see Figure 10 , the figure shows a terminal, which includes:

[0177] The first receiving module 1001 is configured to receive a first downlink control channel, determine a first frequency domain resource according to the first downlink control channel, and transmit a first uplink shared channel on the first frequency domain resource;

[0178] The first determining module 1002 is configured to determine the value of the pilot of the terminal based on the size of the first frequency domain resource and the mapping interval or density of each element in the pilot sequence on the frequency domain or the pilot multiplexing factor a sequence length, and generating a pilot sequence of the sequence length;

[0179]The transmission module 1003 is configured to determine the frequency domain start position of the pilot sequence on the first frequency domain resource, according to the frequency domain start position and the mapping interval or density or pilot reuse factor, an...

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Abstract

The present invention provides a transmission method, equipment, and system. The transmission method includes: a terminal receives a first downlink control channel, determines a first frequency domain resource according to the first downlink control channel, and transmits a first frequency domain resource on the first frequency domain resource. An uplink shared channel; the terminal determines the sequence length of the pilot of the terminal based on the size of the first frequency domain resource and the mapping interval or density of each element in the pilot sequence in the frequency domain or the pilot reuse factor, and generates a sequence length of the pilot sequence; the terminal determines the frequency domain starting position of the pilot sequence on the first frequency domain resource, and maps the pilot sequence to the first frequency domain resource according to the frequency domain starting position and mapping interval or density or pilot multiplexing factor Transmission is carried out on one frequency domain resource to solve the problem of mutual interference when multiple TTIs share the DMRS time domain position.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a transmission method, equipment and system. Background technique [0002] The existing LTE (Long Term Evolution, long-term evolution) FDD (Frequency Division Duplexing, Frequency Division Duplexing) system uses a frame structure (frame structure type 1, referred to as FS1), and its structure is as follows figure 1 shown. In the FDD system, different carrier frequencies are used for uplink and downlink transmission, and the same frame structure is used for both uplink and downlink transmission. On each carrier, a 10ms long radio frame contains 10 1ms subframes, and each subframe is divided into two 0.5ms long time slots. The TTI duration of uplink and downlink data transmission is 1ms. [0003] The existing LTE TDD (TimeDivisionDuplex, Time Division Duplex) system uses a frame structure (frame structure type 2, FS2 for short), such as figure 2 shown. In a TDD...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L5/00H04W72/04
CPCH04L5/0023H04L5/0048H04L5/0053H04L5/0082H04L5/0098H04W72/20H04L5/0016H04L5/0051H04L5/0064H04L5/0094H04W72/21H04W72/0453H04W72/1268H04W72/23
Inventor 高雪娟潘学明
Owner DATANG MOBILE COMM EQUIP CO LTD
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