Data transmission method, system, and device

A data transmission method and transmission method technology, applied in the field of data transmission method, system and equipment, can solve the problem that paired spectrum and non-paired spectrum cannot be merged, and achieve an effect that is conducive to the development of integration

Active Publication Date: 2014-12-17
CHINA MOBILE COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The embodiment of the present invention provides a data transmission method, system and equipment to solve the problem that the paired spectrum and the non-paired spectrum cannot be merged in the prior art

Method used

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  • Data transmission method, system, and device
  • Data transmission method, system, and device
  • Data transmission method, system, and device

Examples

Experimental program
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Embodiment 1

[0040] Embodiment 1 of the present invention describes a unified frame structure that can be applied to both paired spectrum and unpaired spectrum. The frame structure reflects whether each subframe in a period is an uplink subframe or a downlink subframe, or whether it is For special subframes, the unified frame structure in Embodiment 1 is described in detail below by taking 10 ms cycle and 5 ms cycle as examples respectively.

[0041] 1. The frame structure of the first type has a period of 10 ms.

[0042] The first type of frame structure is as image 3 shown, where:

[0043] Subframe 0 is a D subframe, indicating that subframe 0 is a downlink subframe;

[0044]Subframe 1 is a D subframe, indicating that subframe 1 is a downlink subframe;

[0045] Subframe 2 is a U subframe, indicating that subframe 2 is an uplink subframe;

[0046] Subframe 3 to subframe 9 are F subframes (which may be called flexible subframes), which means that any subframe in subframe 3 to subframe...

Embodiment 2

[0070] Embodiment 2 of the present invention utilizes the unified frame structure described in Embodiment 1 for data transmission, such as Figure 9 As shown, it is a schematic diagram of the steps of data transmission in the second embodiment, which mainly includes the following steps:

[0071] Step 101: the network side determines frame structure configuration information within a period.

[0072] In this step 101, the network side determines that the frame structure configuration information may be any type of unified frame structure configuration information described in the first embodiment.

[0073] Taking the first type of frame structure as an example, the frame structure configuration information determined by the network side includes: subframe 0 is a downlink subframe, subframe 1 is a downlink subframe, subframe 2 is an uplink subframe, and any other subframe It is the information of the uplink subframe or the downlink subframe.

[0074] Taking the second type of ...

Embodiment 3

[0088] Case 1:

[0089] In Example 1 image 3 The frame structure of the first type is shown as an example, as shown in Figure 10(a), which is a schematic diagram of the frame structure corresponding to the carrier carrying data in the unpaired spectrum transmission mode. The network side and the terminal use the same carrier under the same carrier Figure 10(a) shows the frame structure for data transmission.

[0090] Case two:

[0091] In the transmission mode of paired spectrum, the full-duplex requirement of simultaneous transmission of uplink data and downlink data cannot be met by using a single carrier, and at least two carriers need to be used for data transmission. Therefore, at least two carriers for data transmission can be Carrier aggregation operation is performed to meet the full-duplex requirements of data transmission.

[0092] The carrier aggregation operation is defined in LTE, that is, more than two (including two) and less than five (including five) indep...

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Abstract

The present invention discloses a data transmission method, system, and device, which can be applied in a unified frame structure under a paired spectrum and also under an unpaired spectrum through definition. In the transmission mode of the paired spectrum, downlink data on a downlink sub-frame in the unified frame structure can be carried on a downlink carrier for transmission, and uplink data on an uplink sub-frame can be carried on an uplink carrier for transmission; and in the transmission mode of the unpaired spectrum, data on each sub-frame in the unified frame structure is carried on the same carrier for transmission, so that converging of the paired spectrum and the unpaired spectrum is achieved, thereby facilitating the converged development of TDD and FDD.

Description

technical field [0001] The present invention relates to the communication field, in particular to a data transmission method, system and equipment. Background technique [0002] 3GPP LTE (3rd Generation Partnership Project, the third generation mobile communication standardization organization) respectively defines the frame structure used in the data transmission process based on paired spectrum and the data transmission process based on unpaired spectrum as follows: [0003] (1) The frame structure used in the data transmission process of the paired spectrum is as follows figure 1 As shown, it is a frame structure 1 (Frame Structure 1) under LTE (Time Division Long term evaluation, long-term evolution standard). The working mode of the frame structure 1 is FDD (Frequency division duplex, frequency division duplex) mode, and the downlink data and uplink data are transmitted on different carriers: the downlink data on the downlink subframe is transmitted on the downlink car...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/12H04B7/26H04L5/14
CPCH04B7/2656H04L5/0092H04L5/1469H04W72/044
Inventor 沈晓冬王飞唐海胡臻平徐瑨胡丽洁李男刘建军胡南高有军刘光毅金婧
Owner CHINA MOBILE COMM GRP CO LTD
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