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Data transmission method, device and equipment

A data transmission method and data technology, applied in the field of communication, can solve the problem of low downlink data transmission rate

Pending Publication Date: 2022-07-01
SPREADTRUM COMM (SHANGHAI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Due to the fixed scheduling delay and the limitation of the maximum number of 8 TBs, the transmission rate of downlink data in the multi-TB scheduling mode of HD-FDD mode is relatively low at present

Method used

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  • Data transmission method, device and equipment
  • Data transmission method, device and equipment
  • Data transmission method, device and equipment

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Embodiment Construction

[0056] The terms used in the embodiments of the present application are only used to explain specific embodiments of the present application, and are not intended to limit the present application.

[0057] Currently, downlink data transmission in the multi-TB scheduling mode of the HD-FDD mode has a fixed scheduling delay and a limit of scheduling a maximum of 8 TBs in one DCI. see figure 1 As shown, a multi-TB scheduling sequence diagram when the downlink data transmission rate is the maximum in the multi-TB scheduling mode is provided. Specifically, if the network side device sends DCI to the electronic device through the Physical Downlink Control Channel (PDCCH) on subframe No. 1, the DCI schedules 8 TBs, and after a fixed scheduling delay of 2 subframes, the network side The device will transmit the above 8 TBs through the Physical Downlink Shared Channel (PDSCH) on subframes 3 to 10, that is, figure 1 In TB0-TB7, the electronic device receives the above-mentioned 8 TBs ...

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PUM

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Abstract

Provided in an embodiment of the present application are a data transmission method, apparatus and device, the method comprising: receiving downlink control information, the downlink control information comprising: scheduling delay information; the scheduling time delay information is used for indicating the number of subframes of a difference between a first subframe and a second subframe, the first subframe is a transmission ending subframe of the downlink control information, and the second subframe is a starting subframe used for transmitting data scheduled by the downlink control information. According to the invention, the downlink data transmission rate in a multi-transmission-block scheduling mode can be improved.

Description

technical field [0001] The present application relates to the field of communications, and in particular, to a data transmission method, apparatus and device. Background technique [0002] The scheduling method of multiple transmission blocks (transmission block, TB), that is, one downlink control information (downlink control information, DCI) can schedule multiple TBs at one time. In the current version of the protocol, when scheduling TBs to transmit downlink data, a maximum of 8 TBs can be scheduled by one DCI at a time, that is, a maximum of 8 parallel Hybrid Automatic Repeat reQuest (HARQ) process IDs are used at a time. In addition, in the multi-TB scheduling mode, there is a fixed scheduling delay, and the fixed scheduling delay is 2 subframes. In Half Duplex Frequency Division Duplex (HD-FDD) mode, in the two subframes before the downlink data transmission is switched to the uplink data transmission, the network side device cannot send DCI, and the uplink data tran...

Claims

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Application Information

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IPC IPC(8): H04W72/12H04L1/00H04L1/18
CPCH04W72/1221H04L1/0018H04L1/1812H04W72/23
Inventor 赵思聪周化雨雷珍珠
Owner SPREADTRUM COMM (SHANGHAI) CO LTD