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Data retransmission method, base station, terminal and system

A technology of data retransmission and base station, applied to the base station, can solve the problem of low data retransmission efficiency of the base station, and achieve the effect of reducing the amount of retransmitted data

Active Publication Date: 2022-01-28
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Embodiments of the present invention provide a data retransmission method, base station, terminal and system to at least solve the problem in the related art that when the transmitted data is punched, the UE's feedback mechanism causes the base station to retransmit the data inefficiently.

Method used

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  • Data retransmission method, base station, terminal and system
  • Data retransmission method, base station, terminal and system
  • Data retransmission method, base station, terminal and system

Examples

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Embodiment 1

[0064] An embodiment of the present application provides a mobile communication network (including but not limited to a 5G mobile communication network or a new generation mobile communication system NR), and the network architecture of the network may include network-side devices (such as base stations) and terminals. This embodiment provides an information transmission method that can run on the above-mentioned network architecture. It should be noted that the operating environment of the above-mentioned information transmission method provided in the embodiment of the present application is not limited to the above-mentioned network architecture.

[0065] The method embodiment provided in Embodiment 1 of the present application may be executed in a mobile terminal, a computer terminal, or a similar computing device. Taking running on a mobile terminal as an example, figure 1 It is a block diagram of a hardware structure of a mobile terminal according to a data retransmissio...

Embodiment 2

[0212] According to another embodiment of the present invention, a base station is also provided, Figure 4 is a hardware structure diagram of a base station according to an embodiment of the present invention, such as Figure 4 As shown, the base station 40 includes:

[0213] The first communication device 402 is configured to send transport block data to the terminal UE, and receive ACK and / or NACK information fed back by the UE, wherein at least one of the following situations occurs during the process of sending the transport block data to the terminal UE : The transmission block TB data sent by the base station to the UE has punctured transmission; part or all of the subbands used by the base station to send the transmission block data to the UE are subbands that allow puncturing transmission; the The base station configures the UE to monitor the puncturing indication information;

[0214] The first processor 404 is configured to, after determining that at least one of ...

Embodiment 3

[0225] According to another embodiment of the present invention, a processor is provided, and the processor is configured to run a program, wherein, when the program is running, the method described in any one of the above optional embodiments is executed.

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Abstract

The present invention provides a data retransmission method, a base station, a terminal and a system, wherein the data retransmission method includes: after one of predetermined situations related to puncturing transmission occurs during the process of sending transmission block data from the base station to the terminal, The base station receives the ACK or NACK information fed back by the UE, wherein, when the base station receives the ACK information, the base station determines whether the UE's decoding situation belongs to the first situation or the second situation according to the ACK information , and then determine whether to retransmit the data in a manner corresponding to the first case or the second case, and send the retransmission data. The above technical solution solves the problem in the related art that when the transmitted data is punctured, the UE's feedback mechanism causes the base station to retransmit the data inefficiently. When retransmission is required, the base station no longer always retransmits the entire transmission block. Data, which can transmit part of the data with hole punching transmission, greatly reducing the amount of retransmitted data.

Description

technical field [0001] The present invention relates to the communication field, in particular, to a data retransmission method, base station, terminal and system. Background technique [0002] Among related technologies, a new generation mobile communication system NR (New Radio) is being researched and standardized, which is also one of the current priorities of the 3GPP. [0003] Among the NR systems that can be determined at present, there will be three typical service types in the future. Common services include: enhanced Mobile BroadBand (eMBB for short), Ultra-Reliable and Low Latency Communications (URLLC for short) and massiveMachine Type Communications (referred to as for mMTC). These services have different requirements on delay, coverage and reliability. For example, for eMBB, high peak transmission rate is mainly emphasized, the requirement for delay is not high (there is no requirement for low delay), and the requirement for reliability is moderate. For URL...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/16H04L1/18H04L1/00
CPCH04L1/004H04L1/0045H04L1/1607H04L1/18H04L1/00H04L1/16
Inventor 苟伟郝鹏毕峰
Owner ZTE CORP