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TDD downlink data transmission device and method in LTE system

一种下行链路、数据传送的技术，应用在TDD下行链路数据传送装置领域，能够解决低吞吐率、效率下降等问题，达到大吞吐量、高效应对的效果

Active Publication Date: 2017-03-15
INNOWIRELESS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0011] However, in the case of adopting the aforementioned scheme A and scheme B, compared with the case of transmitting data according to the maximum transport block size of the downlink subframe and the special subframe, if figure 1 As shown on the right side of , relative to each UL / DL configuration, it results in a lower throughput rate (throughput rate), so there is a problem of a corresponding drop in efficiency

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  • TDD downlink data transmission device and method in LTE system
  • TDD downlink data transmission device and method in LTE system
  • TDD downlink data transmission device and method in LTE system

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Embodiment Construction

[0027] The preferred embodiments of the TDD downlink data transmission device and method in the LTE system of the present invention will be described in detail below with reference to the accompanying drawings.

[0028] image 3 As a structural block diagram of the TDD downlink data transmission device in the LTE system of the present invention, a layer 2 processing unit is configured. Such as figure 2 As shown, the TDD downlink data transmission device in the LTE system of the present invention roughly includes: a data buffer 220, which sequentially loads the IP data transmitted aperiodically from the layer 3 processing unit 100; Based on the ratio of UL / DL configuration information, it indicates the normal downlink subframe PDU (Protocol Data Unit, Protocol Data Unit) queue (hereinafter referred to as "N / S PDU queue") and special subframe PDU queue (hereinafter referred to as "S PDU queue") / S PDU queue"), transfer the data loaded in the N / S PDU queue and S / S PDU queue to...

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Abstract

The present invention relates to a device and method for transmitting TDD downlink data in an LTE system in which TDD downlink signals are transmitted in units of 1 ms on layer 2 while satisfying maximum throughput. According to one feature of the present invention, there is provided a TDD downlink data transmission device in an LTE system, comprising: a data buffer, which sequentially loads IP data transmitted aperiodically from a layer 3 processing unit; a transmission control unit, which presses A ratio suitable for UL / DL configuration information, indicating the generation of the normal downlink subframe PDU queue and the special subframe PDU queue, and loading the normal downlink subframe PDU queue and the special subframe PDU The data of the queue is sequentially delivered to the layer 1 processing unit according to the order and loading order specified by the UL / DL configuration; and the usual downlink subframe PDU queue generator and the special subframe PDU queue generator, which according to the An instruction from the transmission control unit, generating the normal downlink subframe PDU queue and the special subframe PDU queue, loading the data loaded in the data buffer, and one transmission block of the special subframe PDU queue The size of is set to a value smaller than the size of one transport block of the normal downlink subframe PDU queue.

Description

technical field [0001] The present invention relates to a TDD (Time Division Duplexing, Time Division Duplexing) downlink data transmission device and method in an LTE (Long Term Evolution, Long Term Evolution) system, and in particular to a device and method for transmitting data in a TDD (Time Division Duplexing) downlink in an LTE (Long Term Evolution, Long Term Evolution) system, in particular to a method that enables maximum throughput to be satisfied in 2 A TDD downlink data transmission device and method in an LTE system for transmitting TDD downlink signals in units of 1 ms. Background technique [0002] As we all know, the name of LTE (Long Term Evolution) comes from the meaning of the technology that makes the third generation mobile communication (3G) "long-term evolution". One of the strong candidate technologies. [0003] This type of LTE is based on the standard specification "Release 8" determined in December 2008 by 3GPP (3rd Generation Partnership Project; ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/08H04L5/22H04L1/18
CPCH04L1/1874H04L12/6418H04W72/1273H04L27/26H04L5/00H04L9/40H04L5/1469
Inventor 郑镇燮池承桓权五杰金溶熙
Owner INNOWIRELESS