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Physical downlink data channel transmission method, base station and user equipment

A data channel and physical downlink technology, applied in the field of communication, can solve the problem that the transmission time interval of the physical downlink data channel is difficult to reduce

Active Publication Date: 2019-05-24
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide a physical downlink data channel transmission method, a base station, and user equipment to solve the problem that the physical downlink data channel transmission time interval is difficult to reduce in the prior art

Method used

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  • Physical downlink data channel transmission method, base station and user equipment
  • Physical downlink data channel transmission method, base station and user equipment
  • Physical downlink data channel transmission method, base station and user equipment

Examples

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Embodiment 1

[0142] figure 1 It is a flowchart of a physical downlink data channel transmission method provided by Embodiment 1 of the present invention. The method in this embodiment is applicable to M2M communication in an industrial control scenario. The method is executed by a transmission device, which is usually implemented in hardware and / or software and integrated in a network side device. The network side device may be a base station, an evolved base station, a pico base station, and the like. Such as figure 1 As shown, the method includes the following steps:

[0143] Step 101, mapping the physical downlink data channel to the time-frequency resource of at least one time slot; wherein, the time-frequency resource of each time slot includes at least one enhanced physical resource block pair; the enhanced physical resource block pair includes: the same time slot Two consecutive physical resource blocks in the inner frequency domain.

[0144] In this embodiment, frequency divis...

Embodiment 2

[0160] This embodiment also provides a physical downlink data channel transmission method. figure 2 It is a flowchart of a physical downlink data channel transmission method provided in Embodiment 2 of the present invention. Such as figure 2 As shown, on the basis of the foregoing embodiments, this embodiment also includes:

[0161] Step 201. Send the scheduling information of the physical downlink data channel to the UE through the physical downlink control channel carrying the downlink control information; wherein, the scheduling information includes: the time-frequency resource of the physical downlink data channel in at least one time slot Resource allocation information.

[0162] Specifically, the physical downlink control channel carrying the downlink control information (DCI for short) may be a physical downlink control channel (Physical Downlink Control Channel, PDCCH for short) or an enhanced physical downlink control channel (Enhanced Physical Downlink Control Ch...

Embodiment 3

[0215] This embodiment also provides a physical downlink data channel transmission method. The solution of this embodiment is based on the above solution, further, the downlink control information further includes: indication information of the time slot relationship between the physical downlink control channel and the physical downlink data channel; the physical downlink control channel and the physical downlink The time slot relationship of the data channel includes: the physical downlink data channel is located in the same time slot and / or the next time slot of the time slot where the physical downlink control channel is located.

[0216] Further, the time slot relationship indication information includes: indicating the time slot relationship through one bit information of the downlink control information.

[0217] Wherein, the time slot relationship is any one of the following: the physical downlink data channel is located in the same time slot of the time slot where the...

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Abstract

Embodiments of the present invention provide a physical downlink data channel transmission method, a base station, and a user equipment. The physical downlink data channel transmission method provided by the embodiment of the present invention includes: mapping the physical downlink data channel to the time-frequency resource of at least one time slot; wherein the time-frequency resource of each time slot includes at least one enhanced physical resource block pair ; The enhanced physical resource block pair includes: two consecutive physical resource blocks in the frequency domain within the same time slot; and sending the physical downlink data channel to the UE. The embodiment of the present invention can reduce the transmission time interval of the physical downlink data channel.

Description

technical field [0001] Embodiments of the present invention relate to communication technologies, and in particular to a physical downlink data channel transmission method, a base station, and user equipment. Background technique [0002] With the development of mobile Internet technology, Long Term Evolution (LTE for short) or Long Term Evolution Advanced (LTE-Advanced for short) cellular technology is gradually replacing Global System For Mobile Communications (Global System For Mobile Communications, short for GSM), Wideband Code Division Multiple Access (WCDMA) and other cellular technologies have been widely deployed. However, with the development of technologies such as the Internet of Things, the machine-to-machine (M2M for short) communication based on the LTE cellular technology has been valued by the industry. According to the survey results released by Strategy Analytic in November 2013, the number of M2M connections will increase from 368 million to 2.9 billion ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/04
CPCH04W72/1273H04W72/23H04W76/27H04B7/2615H04L5/0007H04W88/02H04W72/044
Inventor 张应余唐臻飞栗忠峰
Owner HUAWEI TECH CO LTD
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