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Data transmission method, user equipment and base station

A data transmission method and user equipment technology, applied in the field of user equipment, base stations, and data transmission methods, can solve problems such as insufficient uplink coverage, and achieve the effect of enhancing uplink coverage

Active Publication Date: 2013-10-30
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the existing method of extending TTI Bundle_Size can enhance the uplink coverage to a certain extent, in some scenarios with limited coverage, the uplink coverage is still not enough and needs to be further enhanced

Method used

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  • Data transmission method, user equipment and base station
  • Data transmission method, user equipment and base station
  • Data transmission method, user equipment and base station

Examples

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Embodiment Construction

[0036] 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 only some, not all, embodiments of the present invention. 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.

[0037] see image 3 , is a schematic flowchart of an embodiment of the data transmission method provided by the present invention.

[0038] The data transmission method provided in this embodiment includes the following steps:

[0039] S11. Send an initial transmission scheduling permission command to the user equipment, instructing the user equipment to send the same data in multiple subframes and indicating the scheduling parameters of the same data; the multiple ...

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Abstract

A data transmission method, a user equipment, and a base station. The method comprises: sending an initial transmission scheduling permission command to a user equipment, to instruct the user equipment to send, in multiple sub-frames, the same data and scheduling parameters indicating the same data; and dividing the multiple sub-frames into M non-consecutive groups, namely, Group 1 to Group M, M>=2, each group comprising one sub-frame or multiple consecutive sub-frames (S11); and receiving the same data sent by the user equipment in the multiple sub-frames, and feeding back to the user equipment a response message indicating whether the same data is accurately received, the same data sent by the user equipment in one sub-frame or multiple consecutive sub-frames in each group being corresponding to each set of data (S12). Embodiments of the present invention can enhance uplink coverage in communication.

Description

technical field [0001] The present invention relates to the technical field of communications, and in particular to a data transmission method, user equipment and a base station. Background technique [0002] The basic unit of physical layer scheduling in 3GPP (3rd Generation Partnership Project, 3rd Generation Partnership Project) LTE (Long Term Evolution, Long Term Evolution) is subframe (1ms), such a small time interval can make the time delay of the application in LTE smaller. However, in the case of limited coverage at the edge of some cells, UE (User Equipment, user equipment) may not be able to meet the BLER (Block Error Rate) of data transmission within the time interval of 1 ms due to its own transmission power limitation. , block error rate) requirements. Therefore, the concept of TTI (Transmission Time Interval, transmission time interval) Bundling (binding) is proposed in LTE. The principle is to bind multiple consecutive uplink TTIs, assign them to the same UE...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00H04L1/06H04L1/18H04W88/02H04W88/08
CPCH04L1/1887H04L1/1854H04L1/00
Inventor 张兴炜
Owner HUAWEI TECH CO LTD
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