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Data transmission method, base station and terminal

A data transmission method and terminal technology, applied in the field of communication, can solve the problems of resource waste, increase system signaling load, etc., and achieve the effects of improving utilization rate, saving signaling resources, and reducing interaction process.

Active Publication Date: 2018-11-13
VIVO MOBILE COMM CO LTD
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AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a data transmission method, base station and terminal to solve the problem that in the transmission resources of PDCCH, some resources are not used by PDCCH to cause waste of resources and need to obtain redundant information through retransmission when data transmission fails Re-decoding increases the signaling load of the system

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  • Data transmission method, base station and terminal
  • Data transmission method, base station and terminal
  • Data transmission method, base station and terminal

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Embodiment Construction

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0032] like figure 1 As shown, the embodiment of the present invention provides a data transmission method applied to a base station, including:

[0033] Step 101: Transmit redundant information of the PDCCH and the physical downlink shared channel PDSCH to the terminal through the time slot resource corresponding to the physical downlink control channel PDCCH.

[0034] Here, the time slot resource corresponding to the PDCCH is specifically the transm...

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Abstract

The invention provides a data transmission method, a base station and a terminal. The problem that the resource is wasted since partial resource is unutilized by the PDCCH, and the system signaling load is increased since the decoding is performed again by acquiring the redundancy information through retransmission when the data transmission is failed in the PDCCH transmission resource are solved.The data transmission method comprises the step of transmitting redundancy information of the PDCCH and physical downlink shared channel PDSCH to the terminal through the time slot resource corresponding to the physical downlink control channel PDCCH. The interaction process between the base station and the terminal is reduced since the terminal is unnecessary to acquire the redundancy information through the retransmission process, the signaling resource is saved, and the utilization rate of the transmission resource of the PDCCH is improved at the same time.

Description

technical field [0001] The present invention relates to the technical field of communications, in particular to a data transmission method, a base station and a terminal. Background technique [0002] In the design of NR (New Radio, new air interface), the receiving end starts to receive PDSCH (Physical Downlink Shared Channel, physical downlink shared channel) from the kth symbol, and the first k-1 symbols are PDCCH (Physical Downlink Control Channel, physical The transmission resources of the downlink control channel), however, some resources in the previous k-1 symbols are not used by the PDCCH, resulting in a waste of resources. [0003] In addition, in the design of 5G and LTE (Long Term Evolution, long-term evolution), data transmission occupies a certain time-frequency resource transmission through a specific data channel. In some cases, part of the time-frequency resources may not be reliably used for the transmission of the data, such as being temporarily used for ...

Claims

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Application Information

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IPC IPC(8): H04L1/22H04L5/00H04W72/04
CPCH04L1/22H04L5/0053H04W72/23
Inventor 沈晓冬
Owner VIVO MOBILE COMM CO LTD
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