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Data repeat transmission method and device

A transmission method and technology for repeated transmission, which are applied in the field of data repeated transmission method and device, and can solve the problems of low efficiency of data repeated transmission and the like

Inactive Publication Date: 2016-10-05
ZTE CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of this, the embodiments of the present invention expect to provide a method and device for repeated data transmission, which can solve the problem of low efficiency of data repeated transmission in communication scenarios with low coverage performance

Method used

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  • Data repeat transmission method and device
  • Data repeat transmission method and device
  • Data repeat transmission method and device

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Embodiment Construction

[0098] In order to better understand the present invention, first, how the LTE / LTE-A system performs data transmission in the prior art and each channel defined in the LTE / LTE-A system is briefly introduced as follows.

[0099]The existing LTE / LTE-A system is based on the dynamic scheduling of each subframe for transmission, that is, each subframe can transmit different control channels, and its frame structure is as follows: figure 1 and figure 2 shown.

[0100] figure 1 It is a schematic diagram of the frame structure of the Frequency Division Duplexing (FDD, Frequency DivisionDuplexing) mode in the existing LTE / LTE-A system, such as figure 1 As shown, a 10ms wireless frame is composed of twenty slots (slots) with a length of 0.5ms and numbers 0 to 19, and slots 2i and 2i+1 form a subframe (subframe) i with a length of 1ms, i is 0 or a natural number.

[0101] figure 2 It is a schematic diagram of the frame structure of the Time Division Duplex (TDD, Time Division Dup...

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Abstract

The embodiment of the present invention discloses a data repeat transmission method. The method comprises the steps of determining the repeat transmission resources, wherein the repeat transmission resources comprise X partitions, X is a positive integer greater than or equal to 2; on the condition of configuring feedback information resources for the partitions or allowing the feedback information to preempt the resources, according to the feedback information of the x-th partition, deciding whether to continuously use or release the subsequent partitions, wherein x is a positive integer, and 0<x<X; on the condition of not configuring the feedback information resources for the partitions or not allowing the feedback information to preempt the resources, after the x-th partition transmits, continuously using the (x+1)-th partition to transmit at intervals of y sub-frames until the X-th partition is used to transmit, wherein x is a positive integer, and 0<x<X, y is a positive integer and is the number of the subframe intervals between the x-th partition and the (x+1)-th partition. Meanwhile, the embodiment of the present invention also discloses a data repeat transmission device.

Description

technical field [0001] The invention relates to the technical field of mobile communication, in particular to a method and device for repeated data transmission. Background technique [0002] Machine Type Communication (MTC, Machine Type Communication) user terminal (UE, User Equipment), also known as machine-to-machine (M2M, Machine to Machine) user communication equipment, is currently the main application form of the Internet of Things. In recent years, more and more mobile operators have chosen LTE / LTE-A as their broadband Evolution direction of wireless communication system. Therefore, MTC multi-type data services based on LTE / LTE-A will also be more attractive. [0003] Among the MTC terminals, there is a type of terminal whose coverage performance is significantly degraded due to the limitation of its location or its own characteristics. For example, smart meter reading MTC terminals are mostly installed in low-coverage performance environments such as basements. T...

Claims

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Application Information

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IPC IPC(8): H04L1/16H04L1/18
Inventor 石靖夏树强戴博方惠英张雯刘锟陈宪明
Owner ZTE CORP
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