Uplink transmission method and device

A transmission method and technology of a transmission device, applied in the field of communication, can solve the problems of no clear data transmission method and inability to correctly demodulate data transmission.

Active Publication Date: 2016-08-24
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to provide an uplink transmission method and device to solve the problem in the prior art that after the transmission time interval is shortened, there is no clear data transmission method, which may cause the data to be unable to be correctly demodulated after transmission

Method used

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  • Uplink transmission method and device
  • Uplink transmission method and device

Examples

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Embodiment 1

[0086] Such as Figure 5 As shown, the uplink transmission method provided by Embodiment 1 of the present invention is applied to a terminal, including:

[0087] Step 51: Receive the first downlink control channel, the first downlink control channel is used to carry the scheduling information of the first uplink shared channel, and determine according to the scheduling information carried by the first downlink control channel for transmitting the first A first frequency domain resource of an uplink shared channel;

[0088] Step 52: Generate a pilot of the first uplink shared channel based on the first frequency domain resource and the frequency domain basic unit; transmit the first uplink shared channel and the pilot on the first frequency domain resource.

[0089] Wherein, the frequency domain basic unit is predefined or configured; the first downlink control channel is used to carry the uplink scheduling grant of the first uplink shared channel; the first downlink control c...

Embodiment 2

[0102] In order to better describe the uplink transmission method, such as Image 6 As shown, Embodiment 2 of the present invention describes the uplink transmission method from the base station side. Specifically, the uplink transmission method includes:

[0103] Step 61: Determine the first frequency domain resource for the terminal to transmit the first uplink shared channel, and send the first downlink control channel to the terminal, and the first downlink control channel is used to bear the first uplink shared channel channel scheduling information, where the scheduling information includes the first frequency domain resource;

[0104] Step 62: Receive the first uplink shared channel and the pilot of the first uplink shared channel sent by the terminal on the first frequency domain resource, where the pilot is based on the first frequency domain resources and frequency domain basic units.

[0105] Wherein, the frequency domain basic unit is predefined or configured; th...

Embodiment 3

[0128] Such as Figure 8 As shown, the uplink transmission device provided by Embodiment 3 of the present invention is applied to a terminal, including:

[0129] The first processing module 81 is configured to receive a first downlink control channel, the first downlink control channel is used to carry scheduling information of a first uplink shared channel, and according to the scheduling information carried by the first downlink control channel determining a first frequency domain resource used for transmitting a first uplink shared channel;

[0130] The second processing module 82 is configured to generate the pilot of the first uplink shared channel based on the first frequency domain resource and the frequency domain basic unit; transmit the first uplink shared channel on the first frequency domain resource and the pilot.

[0131] Wherein, the frequency domain basic unit is predefined or configured; the first downlink control channel is used to carry the uplink scheduli...

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Abstract

The invention provides an uplink transmission method and device, wherein the uplink transmission method comprises the steps of: receiving a first downlink control channel, wherein the first downlink control channel is used for carrying scheduling information of a first uplink sharing channel and determining a first frequency domain resource used for transmitting the first uplink sharing channel according to the scheduling information carried by the first downlink control channel; based on the first frequency domain resource and a frequency domain basic unit, generating a pilot frequency of the first uplink sharing channel; and transmitting the first uplink sharing channel and the pilot frequency on the first frequency domain resource. According to the scheme provided by the invention, DMRSs are generated on the scheduled frequency domain resource in a segmented manner according to frequency domain basic units, so that in each frequency domain basic unit, orthogonality of DMRSs of different UL(uplink) TTIs is ensured, and the accurate transmission and demodulation of uplink data are further ensured.

Description

technical field [0001] The present invention relates to the technical field of communications, in particular to an uplink transmission method and device. Background technique [0002] The existing LTE FDD (Frequency Division Duplex) 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 wireless frame contains 10 1ms subframes, and each subframe is divided into 0.5ms-long time slots, and the transmission time interval (TTI, Transmission Time Interval) for uplink and downlink data transmission The duration is 1ms. [0003] The existing LTE TDD (time division duplex) system uses a frame structure (frame structure type 2, referred to as FS2), and its structure is as follows figure 2 shown. In a TDD syst...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/04H04W72/12H04W72/14H04L5/00
CPCH04L5/0048H04W72/1268H04W72/23H04W72/04H04L5/0007H04L5/0044H04L5/0053H04L5/0094
Inventor 高雪娟郑方政
Owner DATANG MOBILE COMM EQUIP CO LTD
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